/* ===== Reset & Variables ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
    --blue: #1677ff;
    --blue-light: #4096ff;
    --blue-dark: #0958d9;
    --gradient: linear-gradient(135deg, #1677ff 0%, #2563eb 50%, #1d4ed8 100%);
    --radius: 16px;
    --radius-sm: 10px;
    /* 全站彩色 accent（营销区共用） */
    --accent-sky: #0ea5e9;
    --accent-amber: #f59e0b;
    --accent-coral: #f43f5e;
    --accent-teal: #14b8a6;
    --accent-green: #22c55e;
    --accent-orange: #fb923c;
    --accent-wash-sky: rgba(14, 165, 233, 0.16);
    --accent-wash-amber: rgba(245, 158, 11, 0.14);
    --accent-wash-coral: rgba(244, 63, 94, 0.12);
    --accent-wash-teal: rgba(20, 184, 166, 0.12);
    --accent-wash-green: rgba(34, 197, 94, 0.12);
    --accent-wash-blue: rgba(22, 119, 255, 0.14);
    /* 长页板块：光晕渐隐与上下缘过渡 */
    --section-radial-fade: 72%;
    --section-edge-fade: min(26vh, 190px);
}

:root,
[data-theme="dark"] {
    --blue-glow: rgba(22, 119, 255, 0.35);
    --bg: #060a14;
    --bg-2: #0a1020;
    --bg-3: #0f1729;
    --card: rgba(255, 255, 255, 0.035);
    --card-hover: rgba(255, 255, 255, 0.055);
    --border: rgba(255, 255, 255, 0.08);
    --border-light: rgba(255, 255, 255, 0.14);
    --text: #f0f4ff;
    --text-2: rgba(240, 244, 255, 0.72);
    --text-3: rgba(240, 244, 255, 0.48);
    --gradient-text: linear-gradient(135deg, #ffffff 0%, #93c5fd 100%);
    --shadow: 0 24px 80px rgba(0, 0, 0, 0.45);
    --hero-card-bg: rgba(15, 23, 41, 0.85);
    --hero-card-border: rgba(22, 119, 255, 0.3);
    --hero-grid-line: rgba(255, 255, 255, 0.025);
    --hero-orb-1: rgba(14, 165, 233, 0.2);
    --hero-orb-2: rgba(245, 158, 11, 0.14);
    --hero-orb-3: rgba(244, 63, 94, 0.1);
    --accent-wash-sky: rgba(14, 165, 233, 0.2);
    --accent-wash-amber: rgba(245, 158, 11, 0.14);
    --accent-wash-coral: rgba(244, 63, 94, 0.14);
    --accent-wash-teal: rgba(20, 184, 166, 0.14);
    --accent-wash-green: rgba(34, 197, 94, 0.14);
    --accent-wash-blue: rgba(22, 119, 255, 0.18);
    --surface-inset: rgba(255, 255, 255, 0.03);
    --btn-ghost-bg: rgba(255, 255, 255, 0.04);
    --btn-ghost-hover: rgba(255, 255, 255, 0.08);
    --code-bg: rgba(22, 119, 255, 0.12);
    --code-border: rgba(22, 119, 255, 0.2);
    --code-color: #93c5fd;
    --link-hover: #bfdbfe;
    --cap-featured-bg: linear-gradient(135deg, rgba(22, 119, 255, 0.06) 0%, rgba(37, 99, 235, 0.03) 100%);
    --cap-hover-shadow: 0 16px 48px rgba(0, 0, 0, 0.3);
    --theme-toggle-bg: rgba(255, 255, 255, 0.06);
    --theme-toggle-border: rgba(255, 255, 255, 0.12);
    --theme-toggle-color: var(--text-2);
    color-scheme: dark;
}

[data-theme="light"] {
    --blue-glow: rgba(22, 119, 255, 0.2);
    --bg: #eef3f9;
    --bg-2: #f7fafc;
    --bg-3: #e4ebf4;
    --card: #ffffff;
    --card-hover: #f8fafc;
    --border: rgba(15, 23, 42, 0.09);
    --border-light: rgba(15, 23, 42, 0.12);
    --text: #0f172a;
    --text-2: #475569;
    --text-3: #64748b;
    --gradient-text: linear-gradient(135deg, #0f172a 0%, #1677ff 100%);
    --shadow: 0 20px 60px rgba(15, 23, 42, 0.08);
    --hero-card-bg: rgba(255, 255, 255, 0.94);
    --hero-card-border: rgba(22, 119, 255, 0.22);
    --hero-grid-line: rgba(15, 23, 42, 0.045);
    --hero-orb-1: rgba(14, 165, 233, 0.16);
    --hero-orb-2: rgba(245, 158, 11, 0.12);
    --hero-orb-3: rgba(244, 63, 94, 0.1);
    --accent-wash-sky: rgba(14, 165, 233, 0.16);
    --accent-wash-amber: rgba(245, 158, 11, 0.13);
    --accent-wash-coral: rgba(244, 63, 94, 0.11);
    --accent-wash-teal: rgba(20, 184, 166, 0.11);
    --accent-wash-green: rgba(34, 197, 94, 0.11);
    --accent-wash-blue: rgba(22, 119, 255, 0.14);
    --surface-inset: rgba(15, 23, 42, 0.04);
    --btn-ghost-bg: rgba(15, 23, 42, 0.04);
    --btn-ghost-hover: rgba(15, 23, 42, 0.08);
    --code-bg: rgba(22, 119, 255, 0.08);
    --code-border: rgba(22, 119, 255, 0.16);
    --code-color: #0958d9;
    --link-hover: #0958d9;
    --cap-featured-bg: linear-gradient(135deg, rgba(22, 119, 255, 0.06) 0%, #ffffff 100%);
    --cap-hover-shadow: 0 16px 48px rgba(15, 23, 42, 0.1);
    --theme-toggle-bg: rgba(255, 255, 255, 0.9);
    --theme-toggle-border: rgba(15, 23, 42, 0.1);
    --theme-toggle-color: #475569;
    color-scheme: light;
}

[data-theme="light"] body {
    background-color: var(--bg);
    background-image:
        radial-gradient(ellipse 58% 50% at 0% 0%, rgba(37, 99, 235, 0.1) 0%, transparent 60%),
        radial-gradient(ellipse 52% 46% at 100% 100%, rgba(14, 165, 233, 0.08) 0%, transparent 56%),
        radial-gradient(ellipse 44% 40% at 100% 0%, rgba(96, 165, 250, 0.07) 0%, transparent 54%),
        radial-gradient(ellipse 38% 34% at 4% 96%, rgba(245, 158, 11, 0.05) 0%, transparent 52%),
        radial-gradient(ellipse 48% 42% at 72% 18%, rgba(244, 63, 94, 0.04) 0%, transparent 58%),
        linear-gradient(168deg, #e2eaf4 0%, #e8eef6 28%, #eef3f9 55%, #f5f8fb 100%);
    background-attachment: fixed;
}

/* 首页首屏：底缘长距多档淡入下一屏（仅过渡，不含玻璃阶梯） */
[data-theme="light"] .site-premium #home.hero.hero--theme-lock-dark::before {
    height: min(48vh, 360px);
    background: linear-gradient(
        180deg,
        transparent 0%,
        transparent 18%,
        color-mix(in srgb, var(--bg) 12%, transparent) 36%,
        color-mix(in srgb, var(--bg) 38%, transparent) 55%,
        color-mix(in srgb, var(--bg) 72%, transparent) 74%,
        color-mix(in srgb, var(--bg) 94%, #e8eef6) 90%,
        var(--bg) 100%
    );
}

[data-theme="light"] .jk-brand-pill {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.96) 0%, rgba(240, 247, 255, 0.98) 100%);
    box-shadow: 0 10px 24px rgba(37, 99, 235, 0.1);
}

[data-theme="light"] .jk-brand-icon-wrap {
    background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
}

[data-theme="light"] .jk-brand-name {
    color: #0f172a;
}

[data-theme="light"] .contact-panel {
    background: linear-gradient(148deg, rgba(255, 255, 255, 0.98) 0%, rgba(244, 249, 255, 0.98) 52%, rgba(236, 244, 255, 0.96) 100%);
    box-shadow: 0 24px 64px rgba(22, 119, 255, 0.08);
}

[data-theme="light"] .contact-panel-glow {
    background: rgba(22, 119, 255, 0.12);
}

[data-theme="light"] .contact-panel-glow::after {
    background: rgba(14, 165, 233, 0.1);
}

[data-theme="light"] .inquiry-form {
    background: #fff;
    border-color: rgba(15, 23, 42, 0.1);
    box-shadow: 0 10px 30px rgba(15, 23, 42, 0.06);
}

[data-theme="light"] .inquiry-field input,
[data-theme="light"] .inquiry-field select,
[data-theme="light"] .inquiry-field textarea {
    background: #f8fbff;
    border-color: rgba(15, 23, 42, 0.12);
    color: var(--text);
}

[data-theme="light"] .contact-section .contact-panel .inquiry-form {
    background: #ffffff;
    border-color: rgba(22, 119, 255, 0.12);
    box-shadow: 0 12px 36px rgba(15, 23, 42, 0.06);
}

[data-theme="light"] .contact-section .contact-panel .inquiry-field input,
[data-theme="light"] .contact-section .contact-panel .inquiry-field select,
[data-theme="light"] .contact-section .contact-panel .inquiry-field textarea {
    background: #f8fbff;
    border-color: rgba(15, 23, 42, 0.1);
}

[data-theme="light"] .site-premium .hero::after {
    opacity: 0.22;
}

[data-theme="light"] .hero.hero--video-bg .hero-orb {
    opacity: 0.28;
}

[data-theme="light"] .hero.hero--video-bg .particles {
    opacity: 0.35;
}

[data-theme="light"] .pill-nfc { color: #0958d9; background: rgba(22, 119, 255, 0.1); border-color: rgba(22, 119, 255, 0.25); }
[data-theme="light"] .pill-ai { color: #c2410c; background: rgba(245, 158, 11, 0.12); border-color: rgba(245, 158, 11, 0.28); }
[data-theme="light"] .pill-video { color: #15803d; background: rgba(22, 163, 74, 0.08); border-color: rgba(22, 163, 74, 0.2); }
[data-theme="light"] .hc-tag-nfc { color: #0958d9; }
[data-theme="light"] .hc-tag-ai { color: #c2410c; }
[data-theme="light"] .hc-tag-video { color: #15803d; }
[data-theme="light"] .platform-section {
    background: linear-gradient(
        180deg,
        color-mix(in srgb, var(--bg-2) 90%, rgba(37, 99, 235, 0.06)) 0%,
        color-mix(in srgb, var(--bg) 92%, rgba(14, 165, 233, 0.04)) 100%
    );
}

html { scroll-behavior: smooth; }

body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.65;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    transition: background-color 0.35s ease, color 0.35s ease;
    -webkit-user-select: none;
    user-select: none;
    -webkit-touch-callout: none;
}

/* 留言/表单仍可输入与选中 */
input,
textarea,
select,
[contenteditable="true"] {
    -webkit-user-select: text;
    user-select: text;
    -webkit-touch-callout: default;
}

img,
video {
    -webkit-user-drag: none;
    user-drag: none;
}

.container {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 28px;
}

code {
    font-family: 'SF Mono', 'Fira Code', monospace;
    font-size: 0.88em;
    padding: 2px 7px;
    background: var(--code-bg);
    border: 1px solid var(--code-border);
    border-radius: 5px;
    color: var(--code-color);
}

a { color: var(--blue-light); transition: color 0.2s; }
a:hover { color: var(--link-hover); }

/* ===== Theme Toggle ===== */
.theme-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    border: 1px solid var(--theme-toggle-border);
    background: var(--theme-toggle-bg);
    color: var(--theme-toggle-color);
    cursor: pointer;
    backdrop-filter: blur(12px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12);
    transition: background 0.25s, border-color 0.25s, transform 0.2s;
}

.theme-toggle:hover {
    transform: translateY(-1px);
    border-color: rgba(22, 119, 255, 0.35);
    color: var(--blue);
}

.theme-toggle svg {
    width: 20px;
    height: 20px;
    position: absolute;
    transition: opacity 0.25s, transform 0.35s;
}

.theme-toggle .icon-sun { opacity: 0; transform: rotate(-30deg) scale(0.7); }
.theme-toggle .icon-moon { opacity: 1; transform: rotate(0) scale(1); }

[data-theme="light"] .theme-toggle .icon-sun { opacity: 1; transform: rotate(0) scale(1); }
[data-theme="light"] .theme-toggle .icon-moon { opacity: 0; transform: rotate(30deg) scale(0.7); }

.logo-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    background: var(--gradient);
    border-radius: 11px;
    font-size: 16px;
    font-weight: 800;
    color: #fff;
    box-shadow: 0 4px 16px var(--blue-glow);
}

.logo-mark.sm { width: 30px; height: 30px; font-size: 13px; border-radius: 8px; }
.logo-accent { color: var(--blue-light); }

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 13px 28px;
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    border-radius: 11px;
    border: none;
    cursor: pointer;
    transition: all 0.25s ease;
    font-family: inherit;
    white-space: nowrap;
}

.btn-primary {
    background: var(--gradient);
    color: #fff;
    box-shadow: 0 4px 24px var(--blue-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(22,119,255,0.5);
    color: #fff;
}

.btn-xl { padding: 16px 36px; font-size: 16px; border-radius: 12px; }

.btn-ghost {
    background: var(--btn-ghost-bg);
    color: var(--text);
    border: 1px solid var(--border-light);
}

.btn-ghost:hover { background: var(--btn-ghost-hover); color: var(--text); }

.btn-ghost-light {
    background: rgba(255,255,255,0.08);
    color: #fff;
    border: 1px solid rgba(255,255,255,0.2);
}

.btn-ghost-light:hover { background: rgba(255,255,255,0.14); color: #fff; }

.btn-full { width: 100%; }

/* ===== Hero ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero-bg { position: absolute; inset: 0; }

.hero-bg-video-wrap {
    position: absolute;
    inset: 0;
    z-index: 0;
    overflow: hidden;
    pointer-events: none;
    background: #0f172a;
    background-size: cover;
    background-position: center center;
    background-repeat: no-repeat;
}

.hero-bg-video-wrap[hidden] {
    display: none !important;
}

.hero-bg-canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    display: block;
    pointer-events: none;
    -webkit-user-drag: none;
}

.hero-bg-video-source-host {
    position: fixed !important;
    left: -10000px !important;
    top: 0 !important;
    width: 2px !important;
    height: 2px !important;
    margin: 0 !important;
    padding: 0 !important;
    overflow: hidden !important;
    opacity: 0.001 !important;
    pointer-events: none !important;
    z-index: -1 !important;
}

.hero-bg-video-source {
    width: 2px !important;
    height: 2px !important;
    opacity: 0.001 !important;
    pointer-events: none !important;
}

.hero-bg-video-shade {
    position: absolute;
    inset: 0;
    z-index: 1;
    background: linear-gradient(
        90deg,
        rgba(15, 23, 42, 0.38) 0%,
        rgba(15, 23, 42, 0.22) 42%,
        rgba(15, 23, 42, 0.12) 68%,
        rgba(15, 23, 42, 0.06) 100%
    );
}

[data-theme="light"] .hero-bg-video-shade {
    background: linear-gradient(
        90deg,
        rgba(186, 198, 214, 0.78) 0%,
        rgba(168, 182, 200, 0.58) 40%,
        rgba(148, 163, 184, 0.38) 65%,
        rgba(15, 23, 42, 0.14) 100%
    ),
    linear-gradient(180deg, rgba(15, 23, 42, 0.1) 0%, rgba(15, 23, 42, 0.05) 100%);
}

/* 首页 Hero：全站切浅色时仍保持深色视觉（底缘仍融进浅色下一屏） */
[data-theme="light"] #home.hero.hero--theme-lock-dark {
    --text: #f0f4ff;
    --text-2: rgba(240, 244, 255, 0.72);
    --text-3: rgba(240, 244, 255, 0.48);
    --border: rgba(255, 255, 255, 0.08);
    --border-light: rgba(255, 255, 255, 0.14);
    --shadow: 0 24px 80px rgba(0, 0, 0, 0.45);
    --hero-orb-1: rgba(14, 165, 233, 0.2);
    --hero-orb-2: rgba(245, 158, 11, 0.14);
    --hero-orb-3: rgba(244, 63, 94, 0.1);
    --hero-grid-line: rgba(255, 255, 255, 0.025);
    --hero-card-bg: rgba(255, 255, 255, 0.94);
    --hero-card-border: rgba(22, 119, 255, 0.22);
    --btn-ghost-bg: rgba(255, 255, 255, 0.04);
    --btn-ghost-hover: rgba(255, 255, 255, 0.08);
    color: var(--text);
}

[data-theme="light"] #home.hero.hero--theme-lock-dark .jk-brand-pill {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.96) 0%, rgba(240, 247, 255, 0.98) 100%);
    box-shadow: 0 10px 24px rgba(37, 99, 235, 0.12);
}

[data-theme="light"] #home.hero.hero--theme-lock-dark .jk-brand-icon-wrap {
    background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
}

[data-theme="light"] #home.hero.hero--theme-lock-dark .jk-brand-name {
    color: #0f172a;
}

[data-theme="light"] #home.hero.hero--theme-lock-dark .hero-bg-video-shade {
    background:
        linear-gradient(
            180deg,
            transparent 0%,
            transparent 45%,
            color-mix(in srgb, var(--bg) 40%, transparent) 78%,
            var(--bg) 100%
        ),
        linear-gradient(
            90deg,
            rgba(15, 23, 42, 0.22) 0%,
            rgba(15, 23, 42, 0.12) 42%,
            rgba(15, 23, 42, 0.06) 68%,
            rgba(15, 23, 42, 0.02) 100%
        );
}

[data-theme="light"] #home.hero.hero--theme-lock-dark.hero--video-bg .hero-orb {
    opacity: 0.4;
}

[data-theme="light"] #home.hero.hero--theme-lock-dark.hero--video-bg .hero-grid {
    opacity: 0.22;
}

[data-theme="light"] #home.hero.hero--theme-lock-dark.hero--video-bg .particles {
    opacity: 0.55;
}

[data-theme="light"] .site-premium #home.hero.hero--theme-lock-dark::after {
    opacity: 1;
}

[data-theme="light"] #home.hero.hero--theme-lock-dark .particle--glow {
    box-shadow: 0 0 8px 2px rgba(64, 150, 255, 0.55);
}

/* 右侧动态卡片：浅色玻璃（对齐登录卡：左侧更透、右侧略实） */
#home.hero .hero-card {
    background: linear-gradient(
        148deg,
        rgba(255, 255, 255, 0.42) 0%,
        rgba(255, 255, 255, 0.72) 38%,
        rgba(255, 255, 255, 0.9) 100%
    );
    border: 1px solid rgba(255, 255, 255, 0.5);
    color: #0f172a;
    box-shadow:
        0 20px 56px rgba(15, 23, 42, 0.18),
        inset 0 1px 0 rgba(255, 255, 255, 0.65);
    backdrop-filter: blur(18px) saturate(1.15);
    -webkit-backdrop-filter: blur(18px) saturate(1.15);
}

#home.hero .hc-title,
#home.hero .hc-label {
    color: #0f172a;
    margin-bottom: 6px;
    font-size: 17px;
    font-weight: 800;
    letter-spacing: -0.02em;
}

#home.hero .hc-kicker {
    color: #2563eb;
    margin-bottom: 6px;
}

#home.hero .hc-kicker:not(.hc-kicker--front) {
    color: #d97706;
}

#home.hero .hc-lead,
#home.hero .hc-front-lead {
    color: #64748b;
    margin-bottom: 18px;
}

#home.hero .hc-row {
    color: #334155;
    background: rgba(15, 23, 42, 0.04);
    border: 1px solid rgba(15, 23, 42, 0.06);
    backdrop-filter: blur(4px);
    transition: background 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
}

#home.hero .hero-card--seed:hover .hc-row {
    background: rgba(15, 23, 42, 0.06);
    border-color: rgba(37, 99, 235, 0.12);
}

#home.hero .hc-nfc-core {
    color: #1677ff;
    background: rgba(22, 119, 255, 0.12);
}

#home.hero .hc-tags span,
#home.hero .hc-tag {
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

[data-theme="light"] #home.hero.hero--theme-lock-dark .hc-tag-nfc {
    color: var(--accent-sky);
}

[data-theme="light"] #home.hero.hero--theme-lock-dark .hc-tag-ai {
    color: var(--accent-amber);
}

[data-theme="light"] #home.hero.hero--theme-lock-dark .hc-tag-video {
    color: var(--accent-green);
}

.hero.hero--video-bg .hero-orb {
    opacity: 0.4;
}

.hero.hero--video-bg .hero-grid {
    opacity: 0.22;
}

.hero.hero--video-bg .particles {
    opacity: 0.55;
}

.site-premium .hero.hero--video-bg::after {
    opacity: 0.35;
}

.hero-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    pointer-events: none;
}

.hero-orb-1 {
    width: 600px; height: 600px;
    background: var(--hero-orb-1);
    top: -10%; left: -5%;
    animation: orbFloat 12s ease-in-out infinite;
}

.hero-orb-2 {
    width: 500px; height: 500px;
    background: var(--hero-orb-2);
    bottom: -5%; right: -5%;
    animation: orbFloat 15s ease-in-out infinite reverse;
}

.hero-orb-3 {
    width: 300px; height: 300px;
    background: var(--hero-orb-3);
    top: 40%; left: 50%;
    animation: orbFloat 10s ease-in-out infinite 2s;
}

@keyframes orbFloat {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(30px, -20px); }
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(var(--hero-grid-line) 1px, transparent 1px),
        linear-gradient(90deg, var(--hero-grid-line) 1px, transparent 1px);
    background-size: 64px 64px;
    mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black, transparent);
}

.particles {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
    z-index: 0;
}

.particle {
    position: absolute;
    bottom: -4vh;
    width: 3px;
    height: 3px;
    background: var(--blue);
    border-radius: 50%;
    opacity: 0;
    will-change: transform, opacity;
    animation: particleRise 16s linear infinite;
}

.particle--drift {
    animation-name: particleDrift;
}

.particle--glow {
    box-shadow: 0 0 8px 2px rgba(64, 150, 255, 0.55);
}

@keyframes particleRise {
    0% {
        transform: translate3d(0, 0, 0) scale(0.4);
        opacity: 0;
    }
    12% { opacity: 0.55; }
    70% { opacity: 0.4; }
    100% {
        transform: translate3d(var(--px, 0), -110vh, 0) scale(1);
        opacity: 0;
    }
}

@keyframes particleDrift {
    0% {
        transform: translate3d(0, 0, 0) scale(0.35);
        opacity: 0;
    }
    10% { opacity: 0.5; }
    50% {
        transform: translate3d(calc(var(--px, 12px) * 1.6), -55vh, 0) scale(1);
        opacity: 0.45;
    }
    100% {
        transform: translate3d(calc(var(--px, 12px) * -0.8), -110vh, 0) scale(0.7);
        opacity: 0;
    }
}

[data-theme="light"] .particle--glow {
    box-shadow: 0 0 10px 2px rgba(22, 119, 255, 0.35);
}

.hero-layout {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(280px, 420px);
    column-gap: clamp(40px, 6vw, 88px);
    align-items: center;
    padding: 56px clamp(24px, 4vw, 40px) 96px;
    width: 100%;
    max-width: min(1180px, calc(100vw - 32px));
    margin: 0 auto;
    box-sizing: border-box;
}

.hero-content {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    max-width: 640px;
    min-width: 0;
}

.hero-brand {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    margin: 0 0 0;
    animation: fadeUp 0.8s ease both;
}

.hero-brand--signal {
    margin-bottom: 0;
}

.hero-brand-title {
    margin: 0;
    font-size: clamp(36px, 4.2vw, 48px);
    font-weight: 900;
    line-height: 1.05;
    letter-spacing: -0.045em;
    color: #fff;
    text-shadow: 0 8px 32px rgba(15, 23, 42, 0.55);
}

.hero-brand-mark {
    margin-left: 8px;
    color: #93c5fd;
}

.hero-slogan {
    margin: 12px 0 0;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.18em;
    color: rgba(226, 232, 240, 0.82);
    text-shadow: 0 1px 10px rgba(15, 23, 42, 0.35);
}

/* 官网营销首屏：眉题 + 大标题（区别于登录页「品牌主视觉」栈） */
.hero--marketing .hero-eyebrow {
    display: inline-flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 6px 8px;
    margin: 0 0 18px;
    padding: 7px 14px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.04em;
    color: rgba(226, 232, 240, 0.88);
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.22);
    border-radius: 999px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    animation: fadeUp 0.7s ease both;
}

.hero--marketing .hero-eyebrow-brand {
    color: #fff;
    font-weight: 800;
}

.hero--marketing .hero-eyebrow-sep {
    opacity: 0.45;
}

.hero--marketing .hero-title,
.hero--marketing .hero-title-value {
    margin: 0;
    max-width: 14em;
    font-size: clamp(28px, 3.8vw, 42px);
    font-weight: 900;
    letter-spacing: -0.03em;
    line-height: 1.2;
    color: #fff;
    text-shadow: 0 10px 36px rgba(15, 23, 42, 0.45);
    white-space: normal;
    animation: fadeUp 0.8s ease 0.06s both;
}

.hero--marketing .hero-tagline {
    margin: 16px 0 0;
    max-width: 34em;
    font-size: clamp(15px, 1.35vw, 17px);
    font-weight: 500;
    line-height: 1.7;
    color: rgba(241, 245, 249, 0.78);
}

.hero--marketing .hero-outcomes {
    margin: 20px 0 0;
    gap: 0;
}

.hero--marketing .hero-outcomes span {
    font-size: clamp(14px, 1.4vw, 16px);
    font-weight: 700;
}

.hero--marketing .hero-paths {
    margin-top: 22px;
    max-width: 480px;
}

.hero--marketing .hero-actions {
    margin-top: 26px;
    max-width: 560px;
    gap: 12px;
}

.hero--marketing .hero-actions--main {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    width: 100%;
}

.hero--marketing .hero-actions-wrap .hero-cta-primary.btn-xl {
    height: 52px;
    padding: 0 22px;
    border-radius: 14px;
    font-size: 16px;
    font-weight: 800;
    box-shadow: 0 12px 32px rgba(37, 99, 235, 0.42);
}

.btn-login-cta,
.hero-cta-login {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 52px;
    padding: 0 20px;
    border-radius: 14px;
    font-size: 16px;
    font-weight: 750;
    letter-spacing: 0.02em;
    text-decoration: none;
    color: rgba(255, 255, 255, 0.96);
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.42);
    box-shadow: none;
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    transition:
        transform 0.18s ease,
        box-shadow 0.18s ease,
        background 0.18s ease,
        border-color 0.18s ease,
        color 0.18s ease;
}

.btn-login-cta:hover,
.btn-login-cta:focus-visible,
.hero-cta-login:hover,
.hero-cta-login:focus-visible {
    color: #fff;
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(255, 255, 255, 0.7);
    box-shadow: 0 8px 22px rgba(15, 23, 42, 0.2);
    transform: translateY(-2px);
}

.hero-visual-badge {
    position: absolute;
    top: 18px;
    right: 8px;
    z-index: 5;
    padding: 8px 14px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.06em;
    color: #0f172a;
    background: linear-gradient(135deg, #fde68a 0%, #fbbf24 55%, #f59e0b 100%);
    border: 1px solid rgba(255, 255, 255, 0.55);
    box-shadow: 0 10px 28px rgba(245, 158, 11, 0.35);
    animation: fadeUp 0.9s ease 0.35s both;
}

/* 桌面默认：紧凑副文 / 手机徽章先藏 */
.hero-tagline--compact,
.hero-mobile-badge {
    display: none;
}

.jk-brand-pill {
    padding: 8px 16px 8px 10px;
    border-radius: 999px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.96) 0%, rgba(240, 247, 255, 0.98) 100%);
    border: 1px solid rgba(22, 119, 255, 0.2);
    box-shadow: 0 10px 24px rgba(37, 99, 235, 0.12);
    max-width: 100%;
}

.jk-brand-icon-wrap {
    width: 30px;
    height: 30px;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
    border: 1px solid rgba(37, 99, 235, 0.25);
    flex-shrink: 0;
}

.jk-brand-icon {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.jk-brand-name {
    font-size: 18px;
    font-weight: 900;
    letter-spacing: 0.2px;
    color: #0f172a;
    line-height: 1.15;
    white-space: nowrap;
}

.jk-brand-name-accent {
    color: #1677ff;
}

.hero-title {
    margin: 28px 0 0;
    font-size: clamp(17px, 1.7vw, 22px);
    font-weight: 750;
    letter-spacing: -0.01em;
    line-height: 1.45;
    color: rgba(255, 255, 255, 0.96);
    text-shadow: 0 3px 16px rgba(15, 23, 42, 0.4);
    animation: fadeUp 0.8s ease 0.1s both;
    max-width: 22em;
    white-space: normal;
}

.hero-outcomes {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0;
    margin: 18px 0 12px;
    padding: 0;
    animation: fadeUp 0.8s ease 0.16s both;
}

.hero-outcomes span {
    position: relative;
    padding: 0 14px;
    font-size: clamp(15px, 1.7vw, 17px);
    font-weight: 650;
    letter-spacing: 0.02em;
    color: var(--tone, var(--blue-light));
}

.hero-outcomes .tone-sky { --tone: var(--accent-sky); }
.hero-outcomes .tone-amber { --tone: var(--accent-amber); }
.hero-outcomes .tone-coral { --tone: var(--accent-coral); }

.hero-trust {
    margin: 0 0 8px;
    font-size: 13px;
    line-height: 1.5;
    color: var(--text-3);
    animation: fadeUp 0.8s ease 0.2s both;
}

.hero-outcomes span:first-child {
    padding-left: 0;
}

.hero-outcomes span + span::before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    width: 1px;
    height: 0.85em;
    transform: translateY(-50%);
    background: var(--border-light);
}

.hero-tagline {
    font-size: 14px;
    font-weight: 500;
    color: rgba(241, 245, 249, 0.72);
    line-height: 1.75;
    max-width: 28em;
    margin: 10px 0 0;
    white-space: normal;
    word-break: keep-all;
    overflow-wrap: break-word;
    text-shadow: 0 1px 8px rgba(15, 23, 42, 0.28);
    animation: fadeUp 0.8s ease 0.12s both;
}

.hero-paths {
    display: flex;
    flex-direction: column;
    gap: 10px;
    width: 100%;
    max-width: 440px;
    margin: 28px 0 0;
    animation: fadeUp 0.8s ease 0.22s both;
}

.hero-path {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 12px;
    align-items: start;
    padding: 12px 14px;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.18);
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    transition:
        background 0.18s ease,
        border-color 0.18s ease,
        transform 0.18s ease,
        box-shadow 0.18s ease;
}

.hero-path:hover {
    background: rgba(255, 255, 255, 0.16);
    border-color: rgba(255, 255, 255, 0.36);
    box-shadow: 0 8px 22px rgba(15, 23, 42, 0.22);
    transform: translateY(-2px);
}

.hero-path--store {
    border-left: 2px solid rgba(147, 197, 253, 0.75);
}

.hero-path--seed {
    border-left: 2px solid rgba(251, 191, 36, 0.7);
}

.hero-path-idx {
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.06em;
    line-height: 1.6;
    color: rgba(226, 232, 240, 0.55);
    font-variant-numeric: tabular-nums;
    padding-top: 2px;
}

.hero-path-head {
    display: flex;
    align-items: baseline;
    flex-wrap: wrap;
    gap: 8px 10px;
    margin-bottom: 4px;
}

.hero-path-name {
    font-size: 15px;
    font-weight: 700;
    letter-spacing: -0.01em;
    color: rgba(255, 255, 255, 0.96);
}

.hero-path-badge {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.04em;
    color: rgba(226, 232, 240, 0.7);
    padding: 2px 8px;
    border-radius: 6px;
    border: 1px solid rgba(255, 255, 255, 0.18);
    background: rgba(255, 255, 255, 0.06);
}

.hero-path--store .hero-path-badge {
    color: #93c5fd;
    border-color: rgba(147, 197, 253, 0.35);
}

.hero-path--seed .hero-path-badge {
    color: #fbbf24;
    border-color: rgba(251, 191, 36, 0.35);
}

.hero-path-desc {
    margin: 0;
    font-size: 13.5px;
    line-height: 1.55;
    color: rgba(241, 245, 249, 0.68);
    word-break: keep-all;
}

.hero-pills {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 22px;
    animation: fadeUp 0.8s ease 0.25s both;
}

.hero-pill {
    font-size: 14px;
    font-weight: 600;
    padding: 8px 18px;
    border-radius: 100px;
    border: 1px solid transparent;
}

.pill-nfc {
    background: rgba(22, 119, 255, 0.14);
    border-color: rgba(22, 119, 255, 0.35);
    color: #93c5fd;
}

.pill-ai {
    background: rgba(124, 58, 237, 0.14);
    border-color: rgba(124, 58, 237, 0.35);
    color: #c4b5fd;
}

.pill-video {
    background: rgba(22, 163, 74, 0.14);
    border-color: rgba(22, 163, 74, 0.35);
    color: #86efac;
}

.hero-desc strong {
    color: var(--text);
    font-weight: 600;
}

.hero-desc {
    font-size: 16px;
    color: var(--text-2);
    line-height: 1.8;
    max-width: 540px;
    animation: fadeUp 0.8s ease 0.3s both;
}

.hero-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 22px;
    width: 100%;
    max-width: 440px;
    animation: fadeUp 0.8s ease 0.4s both;
}

.hero-actions-wrap .hero-cta-primary.btn-xl {
    height: 48px;
    padding: 0 22px;
    border-radius: 12px;
    font-size: 15px;
    font-weight: 700;
    box-shadow: 0 10px 28px rgba(37, 99, 235, 0.38);
}

.hero-actions-wrap .hero-cta-secondary.btn-ghost {
    height: 48px;
    padding: 0 18px;
    border-radius: 12px;
    color: rgba(255, 255, 255, 0.96);
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.24);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    transition:
        color 0.18s ease,
        background 0.18s ease,
        border-color 0.18s ease,
        box-shadow 0.18s ease,
        transform 0.18s ease;
}

.hero-actions-wrap .hero-cta-secondary.btn-ghost:hover,
.hero-actions-wrap .hero-cta-secondary.btn-ghost:focus-visible {
    color: #fff;
    background: rgba(255, 255, 255, 0.28);
    border-color: rgba(255, 255, 255, 0.55);
    box-shadow:
        0 8px 22px rgba(15, 23, 42, 0.28),
        0 0 0 1px rgba(147, 197, 253, 0.35);
    transform: translateY(-2px);
}

.hero-subcta {
    margin: 16px 0 0;
    font-size: 13px;
    color: rgba(226, 232, 240, 0.62);
    animation: fadeUp 0.8s ease 0.45s both;
}

.hero-subcta a {
    color: #93c5fd;
    font-weight: 650;
    text-decoration: none;
}

.hero-subcta a:hover {
    color: #fff;
    text-decoration: underline;
    text-underline-offset: 3px;
}

.hero-subcta-quiet {
    color: rgba(226, 232, 240, 0.72) !important;
    font-weight: 550 !important;
}

.hero-subcta-sep {
    margin: 0 0.35em;
    color: rgba(255, 255, 255, 0.32);
}

.hero-meta {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 28px;
    font-size: 14px;
    color: var(--text-3);
    animation: fadeUp 0.8s ease 0.5s both;
}

.hero-meta a {
    color: var(--blue-light);
    font-weight: 600;
    text-decoration: none;
}

.hero-meta a:hover { text-decoration: underline; }

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(28px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Hero Visual — 错位叠放 + 前后切换动画 */
.hero-visual {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 480px;
    animation: fadeUp 1s ease 0.3s both;
}

.hero-card-stack {
    position: relative;
    width: 392px;
    height: 430px;
    z-index: 1;
    perspective: 900px;
}

.hero-card {
    position: absolute;
    left: 28px;
    top: 48px;
    width: 316px;
    min-height: 318px;
    border-radius: 22px;
    border: 1px solid rgba(255, 255, 255, 0.55);
    background: linear-gradient(
        155deg,
        rgba(255, 255, 255, 0.5) 0%,
        rgba(255, 255, 255, 0.78) 42%,
        rgba(248, 250, 252, 0.94) 100%
    );
    backdrop-filter: blur(20px) saturate(1.2);
    -webkit-backdrop-filter: blur(20px) saturate(1.2);
    box-shadow:
        0 22px 58px rgba(15, 23, 42, 0.18),
        inset 0 1px 0 rgba(255, 255, 255, 0.72);
    padding: 26px 24px 22px;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    gap: 14px;
    transition:
        transform 0.85s cubic-bezier(0.22, 1, 0.36, 1),
        box-shadow 0.85s cubic-bezier(0.22, 1, 0.36, 1),
        border-color 0.35s ease,
        opacity 0.55s ease,
        filter 0.55s ease;
    will-change: transform, opacity, filter;
    transform-style: preserve-3d;
}

.hero-card--store {
    text-align: center;
}

.hero-card--seed {
    text-align: left;
    border-color: rgba(255, 255, 255, 0.45);
}

.hero-card .hc-top {
    display: flex;
    flex-direction: column;
    align-items: inherit;
}

.hero-card--store .hc-top {
    align-items: center;
}

/* 前位：左下；后位：右上错位 */
.hero-card-stack[data-active="0"] .hero-card--store,
.hero-card-stack[data-active="1"] .hero-card--seed {
    z-index: 3;
    opacity: 1;
    filter: none;
    pointer-events: auto;
    transform: translate3d(0, 36px, 0) rotate(-2deg) scale(1);
    box-shadow:
        0 30px 68px rgba(15, 23, 42, 0.22),
        0 0 0 1px rgba(147, 197, 253, 0.18),
        inset 0 1px 0 rgba(255, 255, 255, 0.78);
}

.hero-card-stack[data-active="0"] .hero-card--seed,
.hero-card-stack[data-active="1"] .hero-card--store {
    z-index: 2;
    transform: translate3d(54px, -40px, 0) rotate(3.2deg) scale(0.94);
    opacity: 0.72;
    filter: saturate(0.92) brightness(0.98);
    pointer-events: none;
    box-shadow:
        0 14px 36px rgba(15, 23, 42, 0.12),
        inset 0 1px 0 rgba(255, 255, 255, 0.4);
}

.hero-card-stack[data-active="0"]:hover .hero-card--store,
.hero-card-stack[data-active="1"]:hover .hero-card--seed {
    transform: translate3d(0, 28px, 0) rotate(-1.2deg) scale(1.03);
    box-shadow:
        0 36px 78px rgba(15, 23, 42, 0.26),
        0 0 0 1px rgba(147, 197, 253, 0.32),
        inset 0 1px 0 rgba(255, 255, 255, 0.85);
}

.hero-card-stack[data-active="0"] .hero-card--store .hc-tags .hc-tag,
.hero-card-stack[data-active="0"] .hero-card--store .hc-mini-list li,
.hero-card-stack[data-active="1"] .hero-card--seed .hc-row {
    animation: hcItemIn 0.55s cubic-bezier(0.22, 1, 0.36, 1) both;
}

.hero-card-stack[data-active="0"] .hero-card--store .hc-tags .hc-tag:nth-child(1),
.hero-card-stack[data-active="1"] .hero-card--seed .hc-row:nth-child(1) { animation-delay: 0.08s; }
.hero-card-stack[data-active="0"] .hero-card--store .hc-tags .hc-tag:nth-child(2),
.hero-card-stack[data-active="1"] .hero-card--seed .hc-row:nth-child(2) { animation-delay: 0.16s; }
.hero-card-stack[data-active="0"] .hero-card--store .hc-tags .hc-tag:nth-child(3),
.hero-card-stack[data-active="1"] .hero-card--seed .hc-row:nth-child(3) { animation-delay: 0.24s; }
.hero-card-stack[data-active="0"] .hero-card--store .hc-mini-list li:nth-child(1) { animation-delay: 0.3s; }
.hero-card-stack[data-active="0"] .hero-card--store .hc-mini-list li:nth-child(2) { animation-delay: 0.38s; }

@keyframes hcItemIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

.hero-flip-meta {
    position: relative;
    z-index: 4;
    width: 200px;
    margin-top: 4px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.hero-flip-dots {
    display: flex;
    gap: 8px;
    align-items: center;
}

.hero-flip-dots span,
.hero-flip-dots button {
    width: 8px;
    height: 8px;
    padding: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.28);
    border: 1px solid rgba(255, 255, 255, 0.35);
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
    transition: transform 0.25s ease, background 0.25s ease, box-shadow 0.25s ease, width 0.25s ease;
}

.hero-flip-dots span.is-active,
.hero-flip-dots button.is-active {
    width: 22px;
    border-radius: 999px;
    background: rgba(147, 197, 253, 0.95);
    border-color: rgba(255, 255, 255, 0.55);
    transform: none;
    box-shadow: 0 0 12px rgba(59, 130, 246, 0.55);
}

.hero-visual.is-showing-seed .hero-flip-dots span.is-active,
.hero-visual.is-showing-seed .hero-flip-dots button.is-active {
    background: rgba(251, 191, 36, 0.95);
    box-shadow: 0 0 12px rgba(245, 158, 11, 0.55);
}

@media (prefers-reduced-motion: reduce) {
    .hero-card {
        transition: none;
        animation: none;
    }
    .hero-card-stack[data-active="0"] .hero-card--store .hc-tags .hc-tag,
    .hero-card-stack[data-active="0"] .hero-card--store .hc-mini-list li,
    .hero-card-stack[data-active="1"] .hero-card--seed .hc-row {
        animation: none;
    }
}

.hc-seed-mark {
    width: 48px;
    height: 48px;
    margin: 0 0 10px;
    border-radius: 14px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #b45309;
    background: linear-gradient(145deg, rgba(251, 191, 36, 0.28), rgba(245, 158, 11, 0.12));
    border: 1px solid rgba(245, 158, 11, 0.28);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.55);
}

.hc-mini-list {
    list-style: none;
    margin: 2px 0 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.hc-mini-list li {
    font-size: 12.5px;
    font-weight: 600;
    color: #475569;
    padding: 8px 12px;
    border-radius: 10px;
    background: rgba(15, 23, 42, 0.04);
    border: 1px solid rgba(15, 23, 42, 0.06);
}

.hc-label {
    font-size: 17px;
    font-weight: 800;
    color: var(--text);
    letter-spacing: -0.02em;
    margin: 0 0 6px;
    line-height: 1.3;
}

.hc-kicker {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--accent-amber);
    margin-bottom: 6px;
}

.hc-kicker--front {
    color: var(--accent-sky);
    margin-bottom: 8px;
}

.hc-lead {
    margin: 0 0 4px;
    font-size: 13px;
    line-height: 1.45;
    color: var(--text-3);
}

.hc-front-lead {
    margin: 0;
    font-size: 13px;
    line-height: 1.45;
    color: var(--text-3);
    letter-spacing: 0.02em;
}

.hc-rows {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 2px;
}

.hc-row {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13.5px;
    font-weight: 600;
    color: var(--text-2);
    padding: 10px 12px;
    background: var(--surface-inset);
    border-radius: 10px;
}

.hc-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.hc-dot.blue { background: var(--accent-sky); }
.hc-dot.green { background: var(--accent-green); }
.hc-dot.purple { background: var(--accent-coral); }

.hc-nfc-ring {
    width: 78px;
    height: 78px;
    margin: 0 auto 12px;
    border-radius: 50%;
    border: 2px solid rgba(22,119,255,0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    animation: nfcPulse 3s ease-in-out infinite;
    position: relative;
}

.hc-nfc-ring::before {
    content: '';
    position: absolute;
    inset: -8px;
    border-radius: 50%;
    border: 1px solid rgba(22,119,255,0.15);
    animation: nfcPulse 3s ease-in-out infinite 0.5s;
}

@keyframes nfcPulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(22,119,255,0.3); }
    50% { box-shadow: 0 0 0 12px rgba(22,119,255,0); }
}

.hc-nfc-core {
    width: 48px;
    height: 48px;
    background: rgba(22,119,255,0.15);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--blue-light);
}

.hc-title {
    font-size: 17px;
    font-weight: 800;
    margin: 0 0 6px;
    line-height: 1.3;
    color: var(--text);
}

.hc-tags {
    display: flex;
    gap: 8px;
    justify-content: center;
    flex-wrap: wrap;
}

.hc-tags span,
.hc-tag {
    font-size: 12px;
    font-weight: 600;
    padding: 6px 14px;
    border-radius: 100px;
    border: 1px solid transparent;
}

.hc-tag-nfc {
    background: color-mix(in srgb, var(--accent-sky) 16%, transparent);
    border-color: color-mix(in srgb, var(--accent-sky) 36%, transparent);
    color: var(--accent-sky);
}

.hc-tag-ai {
    background: color-mix(in srgb, var(--accent-amber) 16%, transparent);
    border-color: color-mix(in srgb, var(--accent-amber) 36%, transparent);
    color: var(--accent-amber);
}

.hc-tag-video {
    background: color-mix(in srgb, var(--accent-green) 16%, transparent);
    border-color: color-mix(in srgb, var(--accent-green) 36%, transparent);
    color: var(--accent-green);
}

.scroll-indicator {
    position: absolute;
    bottom: 36px;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2.5s infinite;
}

.scroll-indicator span {
    display: block;
    width: 22px; height: 36px;
    border: 2px solid var(--border-light);
    border-radius: 11px;
    position: relative;
}

.scroll-indicator span::before {
    content: '';
    position: absolute;
    top: 7px; left: 50%;
    transform: translateX(-50%);
    width: 3px; height: 7px;
    background: var(--blue);
    border-radius: 2px;
    animation: scrollDot 2.5s infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(-8px); }
}

@keyframes scrollDot {
    0% { opacity: 1; transform: translateX(-50%) translateY(0); }
    100% { opacity: 0; transform: translateX(-50%) translateY(10px); }
}

/* ===== Stats Strip ===== */
.stats-strip {
    background: var(--bg-2);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    padding: 48px 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1px;
    background: var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

.stat-block {
    background: var(--bg-2);
    padding: 32px 24px;
    text-align: center;
}

.stat-value {
    font-size: 48px;
    font-weight: 800;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 8px;
}

.stat-unit { font-size: 28px; }

.stat-label {
    font-size: 14px;
    color: var(--text-3);
    font-weight: 500;
}

/* ===== Sections ===== */
.section { padding: 110px 0; }

/* 彩色板块：统一底色 + 缘部融进页面，避免相邻 section 色差断层 */
.demo-section--stage,
.capabilities-section,
.zhijian-section,
.promoter-section,
.contact-section {
    position: relative;
    isolation: isolate;
}

.demo-section--stage > .container,
.capabilities-section > .container,
.zhijian-section > .container,
.promoter-section > .container,
.contact-section > .container {
    position: relative;
    z-index: 1;
}

.demo-section--stage::before,
.capabilities-section::before,
.zhijian-section::before,
.promoter-section::before,
.contact-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: var(--section-edge-fade);
    background: linear-gradient(180deg, var(--bg) 0%, transparent 100%);
    pointer-events: none;
    z-index: 0;
}

.demo-section--stage::after,
.capabilities-section::after,
.zhijian-section::after,
.promoter-section::after,
.contact-section::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: var(--section-edge-fade);
    background: linear-gradient(0deg, var(--bg) 0%, transparent 100%);
    pointer-events: none;
    z-index: 0;
}

.section-header { margin-bottom: 64px; max-width: 720px; }
.section-header.center { text-align: center; margin-left: auto; margin-right: auto; }

.section-eyebrow {
    display: block;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.14em;
    color: var(--accent-sky);
    margin-bottom: 14px;
}

.section-title {
    font-size: clamp(28px, 4vw, 44px);
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.2;
    margin-bottom: 18px;
}

.section-title.left { text-align: left; }

.section-lead {
    font-size: 17px;
    color: var(--text-2);
    line-height: 1.75;
}

.section-lead strong { color: var(--text); font-weight: 600; }

/* ===== Platform / Architecture ===== */
.platform-section { background: var(--bg-2); }

.platform-split {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(320px, 1.05fr);
    gap: 28px 32px;
    align-items: stretch;
    margin-bottom: 24px;
}

/* 宽屏强制左右栏，避免被其它断点误伤 */
@media (min-width: 901px) {
    .platform-split {
        grid-template-columns: minmax(0, 1fr) minmax(320px, 1.05fr);
    }

    .platform-video {
        display: flex;
        flex-direction: column;
    }

    .platform-content { order: unset; }
    .platform-video { order: unset; }
}

.platform-content {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.platform-content .section-header {
    margin-bottom: 20px;
    max-width: none;
}

.platform-content .section-title {
    font-size: clamp(24px, 2.6vw, 32px);
    line-height: 1.25;
}

.platform-content .section-lead {
    max-width: 38em;
    font-size: 15px;
}

.arch-diagram {
    display: flex;
    flex-direction: column;
    gap: 0;
    flex: 1;
    margin-bottom: 0;
}

.arch-node {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 14px 16px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: border-color 0.3s, transform 0.3s;
}

.arch-node:hover {
    border-color: rgba(22,119,255,0.3);
    transform: translateY(-1px);
}

.arch-icon {
    width: 36px; height: 36px;
    flex-shrink: 0;
    background: rgba(22,119,255,0.12);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0;
    color: var(--blue-light);
}

.arch-icon svg { width: 18px; height: 18px; }

.arch-node-body { min-width: 0; }

.arch-node h3 {
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 4px;
}

.arch-node p {
    font-size: 13px;
    color: var(--text-2);
    line-height: 1.5;
    margin: 0;
}

.workflow-inline {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px 14px;
    flex-wrap: wrap;
    margin-top: 0;
    padding: 16px 20px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.wf-inline-step {
    display: flex;
    align-items: center;
    gap: 8px;
}

.wf-inline-num {
    font-size: 13px;
    font-weight: 800;
    color: var(--blue-light);
    opacity: 0.7;
}

.wf-inline-text {
    font-size: 14px;
    font-weight: 600;
    color: var(--text);
}

.wf-inline-arrow {
    color: var(--text-3);
    font-size: 14px;
}

.platform-video {
    position: relative;
    min-height: 0;
    display: flex;
    flex-direction: column;
}

.platform-video-shell {
    position: relative;
    flex: 1;
    width: 100%;
    min-height: 360px;
    border-radius: 12px;
    overflow: hidden;
    background: #0f172a;
    border: 1px solid var(--border);
    box-shadow: 0 18px 48px rgba(15, 23, 42, 0.18);
}

.platform-video-caption {
    margin: 12px 0 0;
    text-align: center;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-2);
    letter-spacing: 0.06em;
}

.platform-video-player,
.platform-video-poster {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
}

.platform-video-player {
    display: block;
    object-fit: contain;
    background: #0f172a;
}

.platform-video-player[hidden] {
    display: none !important;
}

.platform-video-poster {
    display: block;
    padding: 0;
    border: 0;
    cursor: pointer;
    background: #0f172a;
}

/* display:block 会压过默认 [hidden]，播放后必须强制藏封面与中间 ▶ */
.platform-video-poster[hidden],
.platform-video-shell.is-playing .platform-video-poster {
    display: none !important;
}

.platform-video-poster-img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.platform-video-poster-shade {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 40%, rgba(15, 23, 42, 0.55) 100%);
    pointer-events: none;
}

.platform-video-duration {
    position: absolute;
    right: 12px;
    bottom: 12px;
    z-index: 1;
    padding: 2px 8px;
    border-radius: 6px;
    background: rgba(15, 23, 42, 0.72);
    color: #f8fafc;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.02em;
    font-variant-numeric: tabular-nums;
}

.platform-video-play-cue {
    position: absolute;
    left: 50%;
    top: 50%;
    z-index: 1;
    width: 64px;
    height: 64px;
    margin: -32px 0 0 -32px;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(15, 23, 42, 0.55);
    color: #fff;
    font-size: 22px;
    line-height: 1;
    padding-left: 4px;
    box-shadow: 0 8px 24px rgba(15, 23, 42, 0.35);
    pointer-events: none;
    transition: background 0.2s ease;
}

.platform-video-poster:hover .platform-video-play-cue,
.platform-video-poster:focus-visible .platform-video-play-cue {
    background: rgba(22, 119, 255, 0.85);
}

.platform-video-player::-webkit-media-controls-download-button {
    display: none !important;
}

/* 产品示意图 / 介绍视频：禁止拖拽、长按另存与右键下载 */
.media-protected,
.media-protected img,
.media-protected video {
    -webkit-user-select: none;
    user-select: none;
    -webkit-user-drag: none;
    -webkit-touch-callout: none;
}

.demo-showcase-slide.media-protected::after {
    content: '';
    position: absolute;
    inset: 0;
    z-index: 1;
}

.showcase-fs-img.media-protected,
.platform-video-poster-img.media-protected {
    pointer-events: none;
}

.platform-video-player.media-protected::-webkit-media-controls-download-button {
    display: none !important;
}

.industry-tags-block {
    display: flex;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
    margin-top: 40px;
    padding: 24px 28px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.industry-tags-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-3);
    white-space: nowrap;
}

.industry-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.industry-tags span {
    font-size: 14px;
    font-weight: 500;
    padding: 6px 16px;
    background: rgba(22, 119, 255, 0.08);
    border: 1px solid rgba(22, 119, 255, 0.15);
    border-radius: 100px;
    color: var(--text-2);
}

.arch-connector {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 4px 0;
    gap: 0;
}

.arch-connector::before,
.arch-connector::after {
    content: "";
    flex: 1;
    height: 1px;
    background: linear-gradient(to right, transparent, rgba(22,119,255,0.35), transparent);
}

.arch-payload {
    font-size: 10px;
    font-family: monospace;
    color: var(--text-3);
    writing-mode: horizontal-tb;
    letter-spacing: 0.04em;
    white-space: nowrap;
    padding: 0 10px;
}

.concept-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.concept-card {
    padding: 32px 28px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: all 0.3s;
}

.concept-card:hover {
    border-color: rgba(22,119,255,0.25);
    background: var(--card-hover);
}

.concept-num {
    font-size: 36px;
    font-weight: 900;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    opacity: 0.35;
    line-height: 1;
    margin-bottom: 14px;
}

.concept-card h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 10px;
}

.concept-card p {
    font-size: 14px;
    color: var(--text-2);
    line-height: 1.7;
}

/* ===== Capabilities ===== */
.capabilities-section {
    background:
        radial-gradient(ellipse 75% 58% at 0% 0%, var(--accent-wash-blue), transparent var(--section-radial-fade)),
        radial-gradient(ellipse 68% 52% at 100% 8%, var(--accent-wash-sky), transparent var(--section-radial-fade)),
        radial-gradient(ellipse 60% 48% at 82% 100%, var(--accent-wash-coral), transparent var(--section-radial-fade)),
        var(--bg);
}

.cap-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.cap-grid-core {
    margin-bottom: 20px;
}

.cap-grid-more {
    grid-template-columns: repeat(4, 1fr);
}

.cap-card-compact {
    padding: 24px 22px;
}

.cap-card-compact h3 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 8px;
}

.cap-card-compact p {
    font-size: 13px;
    color: var(--text-2);
    line-height: 1.65;
}

.cap-card {
    padding: 32px 28px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: all 0.3s;
    display: flex;
    flex-direction: column;
}

.cap-card:hover {
    border-color: rgba(22,119,255,0.25);
    transform: translateY(-4px);
    box-shadow: var(--cap-hover-shadow);
}

.cap-featured {
    grid-row: span 1;
    border-color: rgba(22,119,255,0.2);
    background: var(--cap-featured-bg);
}

.cap-icon {
    width: 48px; height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 18px;
}

.cap-icon svg { width: 24px; height: 24px; }

.cap-icon-blue { background: rgba(22,119,255,0.15); color: #60a5fa; }
.cap-icon-green { background: rgba(34,197,94,0.12); color: #4ade80; }
.cap-icon-purple { background: rgba(167,139,250,0.12); color: #a78bfa; }
.cap-icon-orange { background: rgba(251,146,60,0.12); color: #fb923c; }
.cap-icon-cyan { background: rgba(34,211,238,0.12); color: #22d3ee; }
.cap-icon-red { background: rgba(248,113,113,0.12); color: #f87171; }

.cap-tag {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.04em;
    color: var(--text-3);
    margin-bottom: 10px;
    text-transform: uppercase;
}

.cap-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 10px;
}

.cap-desc {
    font-size: 14px;
    color: var(--text-2);
    line-height: 1.7;
    margin-bottom: 18px;
    flex: 1;
}

.cap-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 7px;
    border-top: 1px solid var(--border);
    padding-top: 16px;
}

.cap-list li {
    font-size: 13px;
    color: var(--text-3);
    padding-left: 14px;
    position: relative;
}

.cap-list li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--blue);
    font-size: 11px;
}

/* ===== Industries ===== */
.industries-section { background: var(--bg-2); }

.industry-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 40px;
}

.industry-card {
    padding: 28px 22px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    text-align: center;
    transition: all 0.3s;
    cursor: default;
}

.industry-card:hover {
    transform: translateY(-4px);
    border-color: rgba(22,119,255,0.25);
}

.industry-icon { font-size: 32px; margin-bottom: 12px; }

.industry-card h3 {
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 8px;
}

.industry-card p {
    font-size: 13px;
    color: var(--text-3);
    line-height: 1.6;
}

.functional-scenes {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
    padding: 24px 28px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.fs-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-3);
    white-space: nowrap;
}

.fs-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.fs-tags span {
    font-size: 12px;
    font-family: monospace;
    padding: 5px 12px;
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-2);
}

/* ===== Workflow ===== */
.workflow-section { background: var(--bg); }

.workflow-steps {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    max-width: 960px;
    margin: 0 auto;
}

.wf-step {
    display: flex;
    gap: 24px;
    padding: 32px 28px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: all 0.3s;
}

.wf-step:hover {
    border-color: rgba(22,119,255,0.25);
    transform: translateY(-3px);
}

.wf-num {
    font-size: 40px;
    font-weight: 900;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    opacity: 0.5;
    line-height: 1;
    flex-shrink: 0;
    min-width: 56px;
}

.wf-body h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 8px;
}

.wf-body p {
    font-size: 14px;
    color: var(--text-2);
    line-height: 1.7;
}

/* ===== CTA ===== */
.cta-section { padding: 80px 0; background: var(--bg-2); }

.cta-panel {
    position: relative;
    padding: 72px 64px;
    border-radius: 24px;
    border: 1px solid rgba(22,119,255,0.25);
    background: linear-gradient(135deg, rgba(22,119,255,0.12) 0%, rgba(37,99,235,0.06) 100%);
    overflow: hidden;
    text-align: center;
}

.cta-glow {
    position: absolute;
    width: 400px; height: 400px;
    background: rgba(22,119,255,0.15);
    border-radius: 50%;
    filter: blur(80px);
    top: -100px; left: 50%;
    transform: translateX(-50%);
    pointer-events: none;
}

.cta-content { position: relative; z-index: 1; }

.cta-content h2 {
    font-size: clamp(26px, 4vw, 40px);
    font-weight: 800;
    margin-bottom: 14px;
    letter-spacing: -0.02em;
}

.cta-content p {
    font-size: 17px;
    color: var(--text-2);
    margin-bottom: 36px;
}

.cta-actions {
    display: flex;
    gap: 14px;
    justify-content: center;
    flex-wrap: wrap;
}

.cta-actions .btn {
    cursor: pointer;
    font: inherit;
}

/* ===== About ===== */
.about-section { background: var(--bg); }

.about-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: start;
}

.about-text p {
    font-size: 16px;
    color: var(--text-2);
    line-height: 1.8;
    margin-bottom: 18px;
}

.about-text p strong { color: var(--text); }

.about-highlights {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-top: 32px;
}

.ah-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 18px 20px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
}

.ah-item strong {
    font-size: 14px;
    font-weight: 700;
    color: var(--text);
}

.ah-item span {
    font-size: 13px;
    color: var(--text-3);
}

.about-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

.about-card-header {
    padding: 20px 28px;
    background: rgba(22,119,255,0.08);
    border-bottom: 1px solid var(--border);
    font-size: 15px;
    font-weight: 700;
}

.about-product-list { padding: 8px 0; }

.apl-item {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 18px 28px;
    border-bottom: 1px solid var(--border);
}

.apl-item:last-child { border-bottom: none; }

.apl-dot {
    width: 8px; height: 8px;
    border-radius: 50%;
    background: var(--blue);
    margin-top: 6px;
    flex-shrink: 0;
}

.apl-item strong {
    display: block;
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 3px;
}

.apl-item span {
    font-size: 13px;
    color: var(--text-3);
}

/* ===== Contact ===== */
.contact-section {
    padding: 72px 0;
    background:
        radial-gradient(ellipse 70% 55% at 6% 22%, color-mix(in srgb, var(--accent-wash-blue) 75%, transparent), transparent var(--section-radial-fade)),
        radial-gradient(ellipse 62% 50% at 94% 78%, color-mix(in srgb, var(--accent-wash-sky) 70%, transparent), transparent var(--section-radial-fade)),
        var(--bg);
}

.contact-panel {
    position: relative;
    border-radius: 24px;
    border: 1px solid rgba(22, 119, 255, 0.14);
    background: linear-gradient(148deg, rgba(255, 255, 255, 0.96) 0%, rgba(240, 247, 255, 0.98) 52%, rgba(232, 242, 255, 0.94) 100%);
    box-shadow:
        0 24px 64px rgba(22, 119, 255, 0.1),
        0 1px 0 rgba(255, 255, 255, 0.85) inset;
    overflow: hidden;
}

:root:not([data-theme="light"]) .contact-panel {
    border-color: rgba(22, 119, 255, 0.22);
    background: linear-gradient(148deg, rgba(18, 28, 48, 0.92) 0%, rgba(22, 119, 255, 0.1) 100%);
    box-shadow: 0 28px 72px rgba(0, 0, 0, 0.35);
}

.contact-panel-glow {
    position: absolute;
    width: 420px;
    height: 420px;
    background: rgba(22, 119, 255, 0.16);
    border-radius: 50%;
    filter: blur(90px);
    top: -180px;
    right: -80px;
    pointer-events: none;
}

.contact-panel-glow::after {
    content: '';
    position: absolute;
    width: 320px;
    height: 320px;
    left: -520px;
    top: 280px;
    border-radius: 50%;
    background: rgba(14, 165, 233, 0.12);
    filter: blur(80px);
}

:root:not([data-theme="light"]) .contact-panel-glow {
    background: rgba(22, 119, 255, 0.14);
}

:root:not([data-theme="light"]) .contact-panel-glow::after {
    background: rgba(14, 165, 233, 0.1);
}

.contact-panel-inner {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: minmax(220px, 0.82fr) minmax(0, 1.18fr);
    gap: 40px 48px;
    padding: 40px 44px;
    align-items: start;
}

.contact-reach-us {
    display: none;
}

.contact-reach-title {
    margin: 0 0 14px;
    font-size: 18px;
    font-weight: 700;
    letter-spacing: -0.01em;
    color: var(--text);
}


.contact-details {
    list-style: none;
    margin: 24px 0 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.contact-details li {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 14px 16px;
    border-radius: 14px;
    background: rgba(22, 119, 255, 0.05);
    border: 1px solid rgba(22, 119, 255, 0.12);
    transition: border-color 0.2s ease, background 0.2s ease;
}

.contact-details li:hover {
    background: rgba(22, 119, 255, 0.08);
    border-color: rgba(22, 119, 255, 0.22);
}

:root:not([data-theme="light"]) .contact-details li {
    background: rgba(255, 255, 255, 0.04);
    border-color: rgba(255, 255, 255, 0.1);
}

:root:not([data-theme="light"]) .contact-details li:hover {
    background: rgba(22, 119, 255, 0.1);
    border-color: rgba(22, 119, 255, 0.28);
}

.contact-detail-label {
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: none;
    color: var(--blue);
}

:root:not([data-theme="light"]) .contact-detail-label {
    color: var(--blue-light);
}

.contact-detail-value {
    font-size: 16px;
    font-weight: 600;
    color: var(--text);
    line-height: 1.45;
    text-decoration: none;
}

a.contact-detail-value:hover {
    color: var(--blue-light);
}

.contact-intro .section-eyebrow { margin-bottom: 12px; }

.contact-title {
    font-size: clamp(32px, 4vw, 44px);
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
    color: var(--text);
}

[data-theme="light"] .contact-title {
    background: linear-gradient(135deg, #0f172a 0%, #1677ff 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.contact-lead {
    font-size: 15px;
    color: var(--text-2);
    line-height: 1.7;
    margin-bottom: 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.contact-item {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 28px 24px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

a.contact-item:hover {
    border-color: rgba(22, 119, 255, 0.35);
    background: rgba(22, 119, 255, 0.06);
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.25);
}

.contact-item-primary {
    grid-column: span 2;
    border-color: rgba(22, 119, 255, 0.25);
    background: linear-gradient(135deg, rgba(22, 119, 255, 0.1) 0%, rgba(37, 99, 235, 0.05) 100%);
}

a.contact-item-primary:hover {
    border-color: rgba(22, 119, 255, 0.45);
    background: linear-gradient(135deg, rgba(22, 119, 255, 0.14) 0%, rgba(37, 99, 235, 0.08) 100%);
}

.contact-item-static { cursor: default; }

.contact-item-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(22, 119, 255, 0.12);
    border-radius: 11px;
    color: var(--blue-light);
    margin-bottom: 8px;
}

.contact-item-icon svg { width: 22px; height: 22px; }

.contact-item-label {
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--text-3);
}

.contact-item-value {
    font-size: 18px;
    font-weight: 700;
    color: var(--text);
}

a.contact-item:hover .contact-item-value { color: var(--blue-light); }

.contact-item-hint {
    font-size: 13px;
    color: var(--text-3);
    margin-top: 2px;
}

/* ===== Footer ===== */
.footer {
    padding: 64px 0 32px;
    background: var(--bg);
    border-top: 1px solid var(--border);
}

.footer-main {
    display: grid;
    grid-template-columns: minmax(0, 1.55fr) minmax(200px, 0.85fr);
    gap: 48px;
    margin-bottom: 48px;
    align-items: start;
}

.footer-about {
    margin-bottom: 20px;
    max-width: 520px;
}

.footer-about-lead {
    font-size: 14px;
    color: var(--text-2);
    line-height: 1.65;
    margin: 0 0 14px;
    font-weight: 500;
}

.footer-about-lead p {
    margin: 0;
}

.footer-about-lead p + p {
    margin-top: 6px;
}

.footer-about-lead .nobr {
    white-space: nowrap;
}

.footer-creds {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
    border-left: 2px solid var(--border);
    padding-left: 12px;
}

.footer-creds li {
    display: grid;
    grid-template-columns: 2.5em 1fr;
    gap: 8px;
    align-items: baseline;
    font-size: 12px;
    line-height: 1.5;
}

.footer-cred-k {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.06em;
    color: var(--blue-light);
}

.footer-cred-v {
    color: var(--text-3);
}

.footer-cta {
    padding: 11px 24px;
    font-size: 13px;
}

.footer-nav-group h4 {
    font-size: 12px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 16px;
    letter-spacing: 0.04em;
}

.footer-nav-group {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.footer-nav-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px 20px;
}

.footer-nav-grid a,
.footer-nav-grid .footer-flow-link,
.footer-nav-grid .footer-price-link {
    font-size: 13px;
    color: var(--text-3);
    text-decoration: none;
    transition: color 0.2s;
    text-align: left;
}

.footer-nav-grid a:hover,
.footer-nav-grid .footer-flow-link:hover,
.footer-nav-grid .footer-price-link:hover {
    color: var(--blue-light);
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 12px;
    flex-wrap: wrap;
}

.footer-brand-icon {
    width: 30px;
    height: 30px;
    border-radius: 8px;
    object-fit: cover;
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(22, 119, 255, 0.18);
}

.footer-slogan {
    margin: 28px 0 0;
    padding: 22px 12px 0;
    border-top: 1px solid var(--border);
    text-align: center;
    font-size: 13px;
    font-weight: 700;
    line-height: 1.75;
    color: var(--text-2);
}

.footer-meta {
    font-size: 12px;
    margin: 0 0 16px;
    font-weight: 600;
    color: var(--text-3);
    line-height: 1.65;
}

.footer-platform-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    font-weight: 600;
    color: var(--blue-light) !important;
    text-decoration: none;
}

.footer-platform-link:hover { text-decoration: underline; }

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
    padding-top: 6px;
    border-top: 0;
    font-size: 12px;
    line-height: 1.75;
    color: var(--text-3);
}

.footer-bottom a { color: var(--text-3); text-decoration: none; }
.footer-bottom a:hover { color: var(--blue-light); }
.footer-record-link {
    color: var(--text-3);
    font-size: 12px;
    font-weight: 600;
    text-decoration: none;
    transition: color 0.2s ease;
    white-space: nowrap;
}
.footer-record-link:hover { color: var(--blue-light); }
.footer-record-link--icp,
.footer-record-link--gongan,
.footer-beian {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    vertical-align: middle;
}
.footer-record-link--icp img,
.footer-record-link--gongan img,
.footer-beian img {
    display: block;
    flex-shrink: 0;
}
.footer-sep { opacity: 0.4; }

/* ===== Animations (scroll reveal) ===== */
.reveal {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.65s ease, transform 0.65s ease;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== Responsive ===== */
@media (max-width: 1100px) {
    .hero-layout { grid-template-columns: 1fr; text-align: center; }
    .hero-content {
        display: flex;
        flex-direction: column;
        align-items: center;
        width: 100%;
        min-width: 0;
        text-align: center;
    }
    .hero-desc { margin: 0 auto; }
    .hero-actions, .hero-meta, .hero-pills { justify-content: center; }
    .hero-visual { display: none; }

    /* 平板/手机首屏精简：藏路径条、能力条、长副文、看视频、渠道链 */
    .hero-desk-only {
        display: none !important;
    }
    .hero-tagline--full {
        display: none !important;
    }
    .hero-tagline--compact {
        display: block;
        margin: 12px 0 0;
        max-width: 22em;
        font-size: 14px;
        font-weight: 600;
        line-height: 1.55;
        color: rgba(241, 245, 249, 0.82);
        text-align: center;
    }
    .hero-mobile-badge {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        margin: 16px auto 0;
        padding: 7px 14px;
        border-radius: 999px;
        font-size: 12px;
        font-weight: 800;
        letter-spacing: 0.04em;
        color: #0f172a;
        background: linear-gradient(135deg, #fde68a 0%, #fbbf24 55%, #f59e0b 100%);
        border: 1px solid rgba(255, 255, 255, 0.55);
        box-shadow: 0 8px 22px rgba(245, 158, 11, 0.32);
    }
    .hero--marketing .hero-actions {
        margin-top: 18px;
        max-width: 360px;
    }
    .hero--marketing .hero-actions--main {
        flex-direction: column;
        align-items: stretch;
        max-width: 320px;
        gap: 10px;
    }
    .hero--marketing .hero-actions-wrap .hero-cta-primary.btn-xl,
    .hero--marketing .hero-cta-login {
        width: 100%;
    }
    .hero-brand {
        margin-left: auto;
        margin-right: auto;
        align-items: center;
    }
    .hero-brand-title,
    .hero-slogan {
        text-align: center;
    }
    .hero--marketing .hero-eyebrow {
        margin-left: auto;
        margin-right: auto;
    }
    /* 官网营销标题：允许换行，保持大字；勿再强制单行放大公式 */
    .hero-title,
    .hero-title-value {
        width: 100%;
        max-width: 12em;
        margin-left: auto;
        margin-right: auto;
        text-align: center;
        white-space: normal;
        word-break: keep-all;
        overflow-wrap: break-word;
        letter-spacing: -0.03em;
        font-size: clamp(26px, 6vw, 38px);
        line-height: 1.2;
    }
    .hero--marketing .hero-title,
    .hero--marketing .hero-title-value {
        max-width: 14em;
        font-size: clamp(26px, 6.4vw, 36px);
    }
    .hero-tagline {
        width: 100%;
        max-width: 34em;
        margin-left: auto;
        margin-right: auto;
        text-align: center;
        white-space: normal;
        word-break: keep-all;
        overflow-wrap: break-word;
        font-size: 15px;
        line-height: 1.7;
        color: rgba(241, 245, 249, 0.78);
    }
    .hero-outcomes {
        justify-content: center;
        margin-left: auto;
        margin-right: auto;
    }
    .hero-actions-wrap {
        margin-left: auto;
        margin-right: auto;
        justify-content: center;
    }
    .hero-visual-badge {
        right: 50%;
        transform: translateX(50%);
        top: 0;
    }
    .hero-paths {
        width: 100%;
        max-width: 34rem;
        margin-left: auto;
        margin-right: auto;
        text-align: left;
    }
    .hero-outcomes { justify-content: center; }
    .hero-eyebrow { margin-left: auto; margin-right: auto; }

    .cap-grid { grid-template-columns: 1fr; }
    .cap-grid-more { grid-template-columns: 1fr 1fr; }
    .industry-grid { grid-template-columns: repeat(3, 1fr); }
    .about-layout { grid-template-columns: 1fr; }
    .footer-main { grid-template-columns: 1fr; gap: 32px; }
}

/* 仅平板/手机：平台区改为上下；≥901px 保持左右 */
@media (max-width: 900px) {
    .platform-split {
        grid-template-columns: 1fr;
        gap: 24px;
        align-items: stretch;
        margin-bottom: 20px;
    }

    .platform-video {
        position: static;
        order: 2;
        display: flex;
        flex-direction: column;
    }

    .platform-video-shell {
        flex: none;
        height: auto;
        min-height: 0;
        aspect-ratio: 16 / 9;
    }

    .platform-content { order: 1; }

    .platform-content .section-header {
        text-align: left;
    }

    .workflow-inline { justify-content: center; }
}

@media (max-width: 768px) {
    .contact-grid { grid-template-columns: 1fr; }
    .contact-item-primary { grid-column: span 1; }

    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .concept-grid { grid-template-columns: 1fr; }
    .cap-grid { grid-template-columns: 1fr; }
    .industry-grid { grid-template-columns: repeat(2, 1fr); }
    .workflow-steps { grid-template-columns: 1fr; }
    .workflow-inline { flex-direction: column; align-items: flex-start; gap: 8px; }
    .wf-inline-arrow { display: none; }
    .platform-video-play-cue {
        width: 56px;
        height: 56px;
        margin: -28px 0 0 -28px;
        font-size: 18px;
    }
    .contact-panel-inner {
        grid-template-columns: 1fr;
        padding: 20px 16px 22px;
        gap: 22px;
        text-align: left;
    }

    .contact-intro .section-eyebrow { display: none; }

    .contact-title {
        font-size: clamp(1.35rem, 5vw, 1.65rem);
        margin-bottom: 8px;
    }

    .contact-details--intro {
        display: flex;
    }

    .contact-reach-us {
        display: none;
    }

    .contact-reach-title {
        font-size: 17px;
        margin-bottom: 14px;
        color: var(--blue-dark);
    }

    :root:not([data-theme="light"]) .contact-reach-title {
        color: var(--blue-light);
    }

    .contact-reach-us .contact-details {
        margin-top: 0;
        gap: 10px;
    }

    .contact-detail-value {
        font-size: 16px;
    }

    .inquiry-form {
        padding: 16px 14px 14px;
    }

    .inquiry-label {
        font-size: 14px;
    }

    .inquiry-field input,
    .inquiry-field select,
    .inquiry-field textarea {
        font-size: 16px;
        padding: 12px 13px;
    }

    .inquiry-field textarea {
        min-height: 96px;
    }

    .footer-main { grid-template-columns: 1fr; gap: 32px; }
    .section { padding: 52px 0; }
    .contact-section { padding: 44px 0; }
}

@media (max-width: 480px) {
    .theme-toggle { top: 14px; right: 14px; width: 40px; height: 40px; }
    .stats-grid { grid-template-columns: 1fr 1fr; }
    .cap-grid-more { grid-template-columns: 1fr; }
    .hero-actions { flex-direction: column; align-items: stretch; }
    .btn-xl { width: 100%; }
}

/* ===== Marketing rewrite 2026-08 ===== */
#demo,
#promoter,
#contact {
    scroll-margin-top: 20px;
}

.demo-section--stage {
    min-height: min(100vh, 920px);
    display: flex;
    align-items: center;
    padding: 72px 0;
    background:
        radial-gradient(ellipse 75% 58% at 0% 0%, var(--accent-wash-blue), transparent var(--section-radial-fade)),
        radial-gradient(ellipse 70% 55% at 12% 22%, var(--accent-wash-sky), transparent var(--section-radial-fade)),
        radial-gradient(ellipse 65% 50% at 88% 32%, var(--accent-wash-amber), transparent var(--section-radial-fade)),
        radial-gradient(ellipse 58% 48% at 70% 92%, var(--accent-wash-teal), transparent var(--section-radial-fade)),
        var(--bg);
}

.demo-stage {
    display: grid;
    grid-template-columns: minmax(260px, 0.88fr) minmax(360px, 1.52fr);
    gap: 40px 56px;
    align-items: center;
    width: 100%;
}

.demo-stage-title {
    text-align: left;
    margin-bottom: 14px;
    line-height: 1.25;
}

.demo-pick {
    margin: 0 0 22px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.demo-pick-card {
    --pick-tone: var(--accent-sky);
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 16px 18px 16px 20px;
    border-radius: var(--radius);
    border: 1px solid color-mix(in srgb, var(--pick-tone) 28%, var(--border));
    background:
        linear-gradient(165deg, color-mix(in srgb, var(--pick-tone) 14%, var(--card)), var(--card) 62%);
    text-decoration: none;
    color: inherit;
    box-shadow: inset 3px 0 0 var(--pick-tone), var(--shadow);
    transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.demo-pick-card--sky {
    --pick-tone: var(--accent-sky);
}

.demo-pick-card--teal {
    --pick-tone: var(--accent-teal);
}

.demo-pick-card:hover,
.demo-pick-card:focus-visible {
    border-color: color-mix(in srgb, var(--pick-tone) 48%, var(--border));
    box-shadow: inset 3px 0 0 var(--pick-tone), 0 12px 28px color-mix(in srgb, var(--pick-tone) 18%, transparent);
    transform: translateY(-2px);
    outline: none;
}

.demo-pick-card strong {
    font-size: 16px;
    font-weight: 800;
    color: var(--pick-tone);
}

.demo-pick-card span {
    font-size: 14px;
    line-height: 1.5;
    color: var(--text-3);
}

.demo-pick-unsure {
    margin: 10px 0 0;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px 4px;
}

.demo-pick-sep {
    margin: 0 0.2em;
    color: var(--text-3);
    opacity: 0.7;
}

.demo-pick-link--video {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.demo-pick-link {
    appearance: none;
    border: 0;
    padding: 0;
    background: none;
    font: inherit;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-3);
    cursor: pointer;
    text-decoration: underline;
    text-underline-offset: 3px;
}

.demo-pick-link:hover,
.demo-pick-link:focus-visible {
    color: var(--blue-light);
    outline: none;
}

.demo-stage-lead {
    text-align: left;
    margin: 0 0 28px;
    max-width: none;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
}

.demo-stage-lead-line {
    display: block;
    line-height: 1.55;
}

.demo-stage-copy .section-eyebrow {
    display: inline-block;
    margin-bottom: 12px;
}

.demo-flow {
    display: flex;
    flex-direction: column;
    gap: 0;
    margin-bottom: 28px;
    border-left: 2px solid color-mix(in srgb, var(--accent-sky) 45%, transparent);
    padding-left: 0;
}

.demo-flow-item {
    --tone: var(--accent-sky);
    display: grid;
    grid-template-columns: 40px 1fr;
    gap: 14px;
    align-items: start;
    padding: 14px 0 14px 4px;
    position: relative;
}

.demo-flow-item.tone-sky { --tone: var(--accent-sky); }
.demo-flow-item.tone-amber { --tone: var(--accent-amber); }
.demo-flow-item.tone-teal { --tone: var(--accent-teal); }

.demo-flow-num {
    width: 32px;
    height: 32px;
    margin-left: -19px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 800;
    color: #fff;
    background: var(--tone);
    box-shadow: 0 0 0 4px var(--bg);
    flex-shrink: 0;
}

.demo-flow-item strong {
    display: block;
    font-size: 16px;
    margin-bottom: 4px;
    color: var(--tone);
}

.demo-flow-item p {
    margin: 0;
    font-size: 13px;
    color: var(--text-2);
    line-height: 1.45;
}

@media (min-width: 1025px) {
    .demo-flow-item p {
        font-size: 12px;
        white-space: nowrap;
    }
}

.demo-stage-cta { margin-top: 4px; }

.demo-stage-media {
    width: 100%;
    min-width: 0;
}

/* 第二屏：单框轮播（左滑切换 + 全屏；A+B 大图完整展示） */
.demo-showcase-shell {
    width: 100%;
}

.demo-showcase-shell.demo-stage-shell {
    position: relative;
    border-radius: 18px;
    overflow: hidden;
    border: 1px solid var(--border-light);
    background: #0b1120;
    box-shadow: 0 28px 80px rgba(0, 0, 0, 0.28);
    aspect-ratio: auto;
    height: auto;
    min-height: 0;
}

[data-theme="light"] .demo-showcase-shell.demo-stage-shell {
    background: #0f172a;
    box-shadow: 0 24px 64px rgba(15, 23, 42, 0.14);
}

[data-theme="light"] .demo-showcase-frame,
[data-theme="light"] .demo-showcase-slide img {
    background: linear-gradient(165deg, #0c1222 0%, #0f172a 52%, #111827 100%);
}

[data-theme="light"] .demo-showcase-slide img {
    filter: brightness(0.96) saturate(0.98);
}

[data-theme="light"] .demo-showcase-caption {
    background: color-mix(in srgb, var(--bg-2) 88%, rgba(22, 119, 255, 0.06));
    border-top-color: rgba(15, 23, 42, 0.1);
}

[data-theme="light"] .site-premium .demo-showcase-shell.demo-stage-shell::before {
    opacity: 0.7;
}

/* 浏览器窗口框（方案 C） */
.demo-browser-chrome {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 6px 10px 5px;
    background: linear-gradient(180deg, #2a3548 0%, #1e2738 100%);
    border-bottom: 1px solid rgba(255, 255, 255, 0.07);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.demo-browser-traffic {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    flex-shrink: 0;
    padding-left: 2px;
}

.demo-browser-dot {
    width: 11px;
    height: 11px;
    border-radius: 50%;
    box-shadow: inset 0 -1px 1px rgba(0, 0, 0, 0.2);
}

.demo-browser-dot--close { background: #ff5f57; }
.demo-browser-dot--min { background: #febc2e; }
.demo-browser-dot--max { background: #28c840; }

.demo-browser-bar {
    flex: 1;
    min-width: 0;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 4px 4px 4px 10px;
    border-radius: 8px;
    background: rgba(0, 0, 0, 0.32);
    border: 1px solid rgba(255, 255, 255, 0.07);
    box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.22);
    color: rgba(255, 255, 255, 0.72);
    font-size: 11px;
    line-height: 1.2;
}

.demo-browser-bar-main {
    flex: 1;
    min-width: 0;
    display: inline-flex;
    align-items: center;
    gap: 7px;
    overflow: hidden;
}

.demo-browser-lock {
    flex-shrink: 0;
    opacity: 0.8;
    color: rgba(255, 255, 255, 0.55);
}

.demo-browser-url {
    flex-shrink: 0;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.88);
    font-variant-numeric: tabular-nums;
}

.demo-browser-sep {
    flex-shrink: 0;
    opacity: 0.35;
}

.demo-browser-label {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    color: rgba(255, 255, 255, 0.52);
}

.demo-showcase-enter-fs {
    position: absolute;
    top: 12px;
    right: 12px;
    z-index: 3;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 9px 16px;
    border: 1px solid rgba(255, 255, 255, 0.45);
    border-radius: 999px;
    background: rgba(15, 23, 42, 0.82);
    color: #fff;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    backdrop-filter: blur(8px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.38);
    -webkit-tap-highlight-color: rgba(22, 119, 255, 0.2);
    touch-action: manipulation;
    transition: background 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
}

.demo-showcase-enter-fs:hover {
    background: rgba(22, 119, 255, 0.92);
    border-color: rgba(255, 255, 255, 0.6);
    transform: translateY(-1px);
}

.demo-showcase-frame {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    height: auto;
    overflow: hidden;
    background: linear-gradient(165deg, #0c1222 0%, #0f172a 52%, #111827 100%);
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.04);
}

.demo-showcase-shell.demo-stage-shell .demo-showcase-frame {
    border-radius: 0;
    border: none;
    box-shadow: none;
}

.demo-showcase-slides {
    position: absolute;
    left: 0;
    top: 0;
    display: flex;
    flex-direction: row;
    width: 100%;
    height: 100%;
    transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    will-change: transform;
}

.demo-showcase-slide {
    flex: 0 0 100%;
    width: 100%;
    min-width: 0;
    height: 100%;
    margin: 0;
    position: relative;
    overflow: hidden;
    box-sizing: border-box;
}

@media (prefers-reduced-motion: reduce) {
    .demo-showcase-slides {
        transition: none;
    }
}

.demo-showcase-slide img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: center;
    padding: 4px 8px;
    box-sizing: border-box;
    background: linear-gradient(165deg, #0c1222 0%, #0f172a 52%, #111827 100%);
}

.demo-showcase-caption {
    margin: 0;
    padding: 11px 14px 12px;
    text-align: center;
    background: color-mix(in srgb, var(--bg) 90%, transparent);
    border-top: 1px solid var(--border-light);
    pointer-events: none;
}

.demo-showcase-caption-title {
    display: inline;
    margin: 0;
    font-size: 14px;
    font-weight: 700;
    line-height: 1.4;
    color: var(--text);
}

.demo-showcase-caption-title::after {
    content: ' · ';
    font-weight: 400;
    color: var(--text-3);
}

.demo-showcase-caption-desc {
    display: inline;
    margin: 0;
    font-size: 14px;
    font-weight: 400;
    line-height: 1.4;
    color: var(--text-2);
}

.demo-showcase-shell[data-tone="sky"] .demo-showcase-caption-title { color: var(--accent-sky); }
.demo-showcase-shell[data-tone="amber"] .demo-showcase-caption-title { color: var(--accent-amber); }
.demo-showcase-shell[data-tone="teal"] .demo-showcase-caption-title { color: var(--accent-teal); }
.demo-showcase-shell[data-tone="coral"] .demo-showcase-caption-title { color: var(--accent-coral); }
.demo-showcase-shell[data-tone="green"] .demo-showcase-caption-title { color: var(--accent-green); }

.demo-showcase-exit-fs {
    position: absolute;
    top: 14px;
    right: 14px;
    z-index: 5;
    display: none;
    align-items: center;
    gap: 6px;
    padding: 10px 18px;
    border: 1px solid rgba(255, 255, 255, 0.55);
    border-radius: 999px;
    background: rgba(15, 23, 42, 0.88);
    color: #fff;
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    backdrop-filter: blur(8px);
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.45);
    -webkit-tap-highlight-color: rgba(22, 119, 255, 0.2);
    touch-action: manipulation;
}

.demo-showcase-exit-fs:hover {
    background: rgba(220, 38, 38, 0.92);
    border-color: rgba(255, 255, 255, 0.65);
}

.demo-showcase-nav {
    position: absolute;
    top: 50%;
    z-index: 4;
    display: none;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    padding: 0;
    border: 1px solid rgba(255, 255, 255, 0.45);
    border-radius: 999px;
    background: rgba(15, 23, 42, 0.78);
    color: #fff;
    cursor: pointer;
    transform: translateY(-50%);
    backdrop-filter: blur(8px);
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.4);
    -webkit-tap-highlight-color: rgba(22, 119, 255, 0.2);
    touch-action: manipulation;
    transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.demo-showcase-nav:hover {
    background: rgba(22, 119, 255, 0.88);
    border-color: rgba(255, 255, 255, 0.65);
}

.demo-showcase-nav--prev {
    left: 16px;
}

.demo-showcase-nav--next {
    right: 16px;
}

.demo-showcase-dots {
    position: static;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 9px;
    margin: 0;
    padding: 10px 12px 8px;
    background: #0f172a;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.demo-showcase-dots button {
    width: 9px;
    height: 9px;
    padding: 0;
    border: none;
    border-radius: 999px;
    cursor: pointer;
    opacity: 0.42;
    transition: transform 0.2s ease, opacity 0.2s ease, box-shadow 0.2s ease;
}

.demo-showcase-dots button[data-tone="sky"] { background: var(--accent-sky); }
.demo-showcase-dots button[data-tone="amber"] { background: var(--accent-amber); }
.demo-showcase-dots button[data-tone="teal"] { background: var(--accent-teal); }
.demo-showcase-dots button[data-tone="coral"] { background: var(--accent-coral); }
.demo-showcase-dots button[data-tone="green"] { background: var(--accent-green); }

.demo-showcase-dots button.is-active {
    opacity: 1;
    transform: scale(1.2);
    box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.38);
}

.demo-showcase-frame:fullscreen,
.demo-showcase-frame:-webkit-full-screen,
#demoShowcase:fullscreen,
#demoShowcase:-webkit-full-screen {
    width: 100vw;
    height: 100vh;
    max-height: 100vh;
    max-width: 100vw;
    aspect-ratio: auto;
    border-radius: 0;
    border: none;
    box-shadow: none;
}

#demoShowcase:fullscreen,
#demoShowcase:-webkit-full-screen {
    display: flex;
    flex-direction: column;
    background: #0b1120;
}

#demoShowcase:fullscreen .demo-showcase-caption,
#demoShowcase:-webkit-full-screen .demo-showcase-caption {
    display: none !important;
}

#demoShowcase:fullscreen .demo-showcase-frame,
#demoShowcase:-webkit-full-screen .demo-showcase-frame {
    flex: 1 1 auto;
    min-height: 0;
    width: 100%;
    aspect-ratio: auto;
    height: auto;
}

.demo-showcase-frame:fullscreen .demo-showcase-enter-fs,
.demo-showcase-frame:-webkit-full-screen .demo-showcase-enter-fs,
#demoShowcase:fullscreen .demo-showcase-enter-fs,
#demoShowcase:-webkit-full-screen .demo-showcase-enter-fs {
    display: none;
}

.demo-showcase-frame:fullscreen .demo-showcase-exit-fs,
.demo-showcase-frame:-webkit-full-screen .demo-showcase-exit-fs,
#demoShowcase:fullscreen .demo-showcase-exit-fs,
#demoShowcase:-webkit-full-screen .demo-showcase-exit-fs {
    display: inline-flex;
}

.demo-showcase-frame:fullscreen .demo-showcase-nav,
.demo-showcase-frame:-webkit-full-screen .demo-showcase-nav,
#demoShowcase:fullscreen .demo-showcase-nav,
#demoShowcase:-webkit-full-screen .demo-showcase-nav {
    display: inline-flex;
}

.demo-showcase-frame:fullscreen .demo-showcase-slide img,
.demo-showcase-frame:-webkit-full-screen .demo-showcase-slide img,
#demoShowcase:fullscreen .demo-showcase-slide img,
#demoShowcase:-webkit-full-screen .demo-showcase-slide img {
    object-fit: contain;
    background: #000;
}

/* 全屏弹层（移动端 / 不支持原生全屏时） */
.showcase-fs-modal[hidden] {
    display: none !important;
}

.showcase-fs-modal {
    position: fixed;
    inset: 0;
    z-index: 1250;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px;
}

.showcase-fs-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.88);
}

.showcase-fs-dialog {
    position: relative;
    z-index: 1;
    width: min(100%, 1080px);
    max-height: calc(100vh - 32px);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.showcase-fs-browser {
    width: 100%;
    border-radius: 18px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: #0b1120;
    box-shadow: 0 28px 80px rgba(0, 0, 0, 0.45);
}

.showcase-fs-frame {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    min-height: 0;
    overflow: hidden;
    border-radius: 0;
    border: none;
    box-shadow: none;
    background: linear-gradient(165deg, #0c1222 0%, #0f172a 52%, #111827 100%);
}

.showcase-fs-frame .showcase-fs-img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    max-height: none;
    object-fit: contain;
    background: #000;
}

.showcase-fs-close {
    position: absolute;
    top: 8px;
    right: 8px;
    z-index: 2;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 18px;
    border: 1px solid rgba(255, 255, 255, 0.45);
    border-radius: 999px;
    background: rgba(15, 23, 42, 0.82);
    color: #fff;
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
    -webkit-tap-highlight-color: rgba(22, 119, 255, 0.2);
    touch-action: manipulation;
}

.showcase-fs-close:hover {
    background: rgba(220, 38, 38, 0.92);
    border-color: rgba(255, 255, 255, 0.6);
}

.showcase-fs-nav {
    position: absolute;
    top: 50%;
    z-index: 2;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    padding: 0;
    border: 1px solid rgba(255, 255, 255, 0.45);
    border-radius: 999px;
    background: rgba(15, 23, 42, 0.82);
    color: #fff;
    cursor: pointer;
    transform: translateY(-50%);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
    -webkit-tap-highlight-color: rgba(22, 119, 255, 0.2);
    touch-action: manipulation;
    transition: background 0.2s ease, border-color 0.2s ease;
}

.showcase-fs-nav:hover {
    background: rgba(22, 119, 255, 0.88);
    border-color: rgba(255, 255, 255, 0.6);
}

.showcase-fs-nav--prev {
    left: 8px;
}

.showcase-fs-nav--next {
    right: 8px;
}

.showcase-fs-exit-btn {
    margin-top: 16px;
    padding: 12px 32px;
    border: 1px solid rgba(255, 255, 255, 0.45);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.14);
    color: #fff;
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.35);
    -webkit-tap-highlight-color: rgba(22, 119, 255, 0.2);
    touch-action: manipulation;
}

.showcase-fs-exit-btn:hover {
    background: rgba(220, 38, 38, 0.92);
    border-color: rgba(255, 255, 255, 0.55);
}

.showcase-fs-img {
    display: block;
    object-fit: contain;
    background: #000;
}

.showcase-fs-caption {
    display: none !important;
}

html.showcase-fs-modal-open {
    overflow: hidden;
}

.demo-stage-shell {
    width: 100%;
    height: auto;
    min-height: 0;
    aspect-ratio: 16 / 9;
    border-radius: 18px;
    box-shadow: 0 28px 80px rgba(0, 0, 0, 0.28);
    border: 1px solid var(--border-light);
    overflow: hidden;
}

[data-theme="light"] .demo-stage-shell {
    box-shadow: 0 24px 64px rgba(15, 23, 42, 0.12);
}

.demo-flow-item + .demo-flow-item {
    border-top: 1px solid var(--border);
}

.book-section {
    padding: 40px 0 20px;
    background: var(--bg);
}

.book-panel {
    border-radius: var(--radius);
    border: 1px solid color-mix(in srgb, var(--accent-sky) 22%, var(--border-light));
    background:
        linear-gradient(135deg, var(--accent-wash-sky), transparent 42%),
        linear-gradient(225deg, var(--accent-wash-amber), transparent 40%),
        linear-gradient(180deg, color-mix(in srgb, var(--accent-sky) 6%, var(--card)) 0%, var(--card) 100%);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.book-steps {
    list-style: none;
    margin: 0;
    padding: 28px 20px 8px;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
}

.book-bar-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
    padding: 20px 20px 28px;
    border-top: 1px solid rgba(22, 119, 255, 0.12);
}

.book-bar-actions .btn {
    cursor: pointer;
    font: inherit;
}

.book-step {
    position: relative;
    text-align: center;
    padding: 8px 16px 4px;
}

.book-step:not(:last-child)::after {
    content: "";
    position: absolute;
    top: 22px;
    left: calc(50% + 22px);
    right: calc(-50% + 22px);
    height: 2px;
    background: linear-gradient(90deg, var(--accent-sky), var(--accent-amber), var(--accent-teal), var(--accent-coral));
    opacity: 0.45;
    pointer-events: none;
}

.book-step-num {
    position: relative;
    z-index: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    margin: 0 auto 12px;
    border-radius: 50%;
    background: var(--tone, var(--blue));
    color: #fff;
    font-size: 15px;
    font-weight: 700;
    line-height: 1;
    box-shadow: 0 4px 12px color-mix(in srgb, var(--tone, var(--blue)) 32%, transparent);
}

.book-step:nth-child(1) { --tone: var(--accent-sky); }
.book-step:nth-child(2) { --tone: var(--accent-amber); }
.book-step:nth-child(3) { --tone: var(--accent-teal); }
.book-step:nth-child(4) { --tone: var(--accent-coral); }

.book-step-title {
    margin: 0 0 8px;
    font-size: 16px;
    font-weight: 700;
    color: var(--text);
    line-height: 1.35;
}

.book-step-title a {
    color: inherit;
    text-decoration: none;
}

.book-step-title a:hover {
    color: var(--blue, #1677ff);
    text-decoration: underline;
}

.book-step-desc {
    margin: 0;
    font-size: 13px;
    line-height: 1.55;
    color: var(--text-2);
}

/* 体验流程弹窗（原 #book 区块） */
.book-flow-modal[hidden] { display: none !important; }

.book-flow-modal {
    position: fixed;
    inset: 0;
    z-index: 1100;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px 16px;
}

.book-flow-modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.58);
}

.book-flow-modal-dialog {
    position: relative;
    z-index: 1;
    width: min(640px, 100%);
    max-height: min(88vh, 720px);
    overflow: auto;
    border-radius: 20px;
    border: 1px solid var(--border-light);
    background: var(--bg-2);
    padding: 28px 24px 24px;
    box-shadow: var(--shadow);
}

.book-flow-modal-close {
    position: absolute;
    top: 12px;
    right: 12px;
    border: 0;
    background: transparent;
    color: var(--text-3);
    cursor: pointer;
    padding: 6px;
}

.book-flow-modal-title {
    font-size: 20px;
    font-weight: 800;
    margin: 0 0 8px;
    padding-right: 36px;
}

.book-flow-modal-lead {
    margin: 0 0 16px;
    font-size: 14px;
    line-height: 1.65;
    color: var(--text-2);
}

.book-panel--modal {
    box-shadow: none;
    margin-bottom: 16px;
}

.book-steps--modal {
    grid-template-columns: repeat(4, 1fr);
    padding: 20px 12px 8px;
}

.book-flow-modal-cta {
    width: 100%;
    justify-content: center;
}

html.book-flow-modal-open { overflow: hidden; }

@media (max-width: 640px) {
    .book-flow-modal-lead {
        display: none;
    }

    .book-steps--modal {
        grid-template-columns: 1fr 1fr;
        gap: 14px 10px;
        padding: 16px 10px 6px;
    }

    .book-steps--modal .book-step:not(:last-child)::after {
        display: none;
    }

    .book-flow-modal-dialog {
        align-self: flex-end;
        width: 100%;
        max-height: 92vh;
        border-bottom-left-radius: 0;
        border-bottom-right-radius: 0;
        padding: 22px 16px calc(18px + env(safe-area-inset-bottom, 0px));
    }
}

html.cs-modal-open,
html.intro-video-modal-open {
    overflow: hidden;
}

.cs-modal[hidden] {
    display: none !important;
}

.cs-modal {
    position: fixed;
    inset: 0;
    z-index: 1200;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.cs-modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(8, 12, 24, 0.62);
    backdrop-filter: blur(4px);
}

.cs-modal-dialog {
    position: relative;
    z-index: 1;
    width: min(100%, 360px);
    padding: 32px 28px 28px;
    border-radius: calc(var(--radius) + 2px);
    border: 1px solid var(--border-light);
    /* 不用半透明 --card，避免深色模式正文与背景撞色 */
    background: var(--bg-2);
    box-shadow: var(--shadow);
    text-align: center;
}

.cs-modal-close {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 40px;
    height: 40px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: none;
    border-radius: 10px;
    background: var(--btn-ghost-bg);
    color: var(--text-2);
    cursor: pointer;
    -webkit-tap-highlight-color: rgba(22, 119, 255, 0.2);
    touch-action: manipulation;
}

.cs-modal-close:hover {
    color: var(--text);
    background: var(--btn-ghost-hover);
}

.cs-modal-title {
    margin: 0 28px 20px 0;
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text);
}

.cs-modal-desc {
    margin: 0 0 20px;
    font-size: 14px;
    line-height: 1.55;
    color: var(--text-2);
}

.cs-modal-qr {
    display: block;
    width: min(240px, 70vw);
    height: auto;
    margin: 0 auto;
    border-radius: 12px;
    background: #fff;
    padding: 10px;
    box-sizing: border-box;
    border: 1px solid rgba(15, 23, 42, 0.08);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
}

/* 首屏「观看视频」弹层 */
.intro-video-modal[hidden] {
    display: none !important;
}

.intro-video-modal {
    position: fixed;
    inset: 0;
    z-index: 1200;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.intro-video-modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(8, 12, 24, 0.72);
    backdrop-filter: blur(4px);
}

.intro-video-modal-dialog {
    position: relative;
    z-index: 1;
    width: min(100%, 920px);
    padding: 28px 24px 24px;
    border-radius: calc(var(--radius) + 2px);
    border: 1px solid var(--border-light);
    background: var(--bg-2);
    box-shadow: var(--shadow);
}

.intro-video-modal-close {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 40px;
    height: 40px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: none;
    border-radius: 10px;
    background: var(--btn-ghost-bg);
    color: var(--text-2);
    cursor: pointer;
    -webkit-tap-highlight-color: rgba(22, 119, 255, 0.2);
    touch-action: manipulation;
}

.intro-video-modal-close:hover {
    color: var(--text);
    background: var(--btn-ghost-hover);
}

.intro-video-modal-title {
    margin: 0 48px 16px 0;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text);
}

.intro-video-modal-desc {
    margin: 0 0 16px;
    font-size: 14px;
    line-height: 1.55;
    color: var(--text-2);
}

.intro-video-shell {
    width: 100%;
    min-height: 0;
    aspect-ratio: 16 / 9;
    border-radius: 14px;
}

/* ===== 价格说明弹层（只看价，不注册） ===== */
html.price-modal-open {
    overflow: hidden;
}

.price-entry {
    margin: 14px 0 0;
}

.price-entry-btn {
    appearance: none;
    -webkit-appearance: none;
    margin: 0;
    position: relative;
    z-index: 2;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 40px;
    padding: 8px 14px;
    border-radius: 999px;
    border: 1px solid color-mix(in srgb, var(--accent-sky) 40%, var(--border));
    background: color-mix(in srgb, var(--accent-sky) 12%, var(--card));
    color: var(--accent-sky);
    font: inherit;
    font-size: 13px;
    font-weight: 700;
    line-height: 1.2;
    cursor: pointer;
    -webkit-tap-highlight-color: rgba(14, 165, 233, 0.25);
    touch-action: manipulation;
    user-select: none;
    -webkit-user-select: none;
    pointer-events: auto;
}

.price-entry-btn:hover,
.price-entry-btn:focus-visible {
    border-color: color-mix(in srgb, var(--accent-sky) 60%, var(--border));
    background: color-mix(in srgb, var(--accent-sky) 18%, var(--card));
    color: var(--blue-light);
    outline: none;
}

.price-entry-btn:active {
    transform: scale(0.98);
}

.price-entry-btn--channel {
    border-color: color-mix(in srgb, var(--accent-amber, #f59e0b) 40%, var(--border));
    background: color-mix(in srgb, var(--accent-amber, #f59e0b) 10%, var(--card));
    color: #b45309;
}

.price-entry-btn--channel:hover,
.price-entry-btn--channel:focus-visible {
    border-color: color-mix(in srgb, var(--accent-amber, #f59e0b) 60%, var(--border));
    background: color-mix(in srgb, var(--accent-amber, #f59e0b) 16%, var(--card));
    color: #92400e;
}

.footer-price-link {
    appearance: none;
    margin: 0;
    padding: 0;
    border: 0;
    background: none;
    font: inherit;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-3);
    cursor: pointer;
    text-align: left;
    -webkit-tap-highlight-color: rgba(14, 165, 233, 0.25);
    touch-action: manipulation;
}

.footer-price-link:hover {
    color: var(--blue-light);
}

.footer-nav-group .footer-price-link {
    display: inline;
}

.price-modal[hidden] {
    display: none !important;
}

.price-modal {
    position: fixed;
    inset: 0;
    z-index: 1210;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    padding: 0;
}

@media (min-width: 561px) {
    .price-modal {
        align-items: center;
        padding: 24px;
    }
}

.price-modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(8, 12, 24, 0.62);
    backdrop-filter: blur(4px);
}

.price-modal-dialog {
    position: relative;
    z-index: 1;
    width: min(100%, 420px);
    max-height: min(90vh, 640px);
    overflow: auto;
    padding: 28px 24px 24px;
    border-radius: calc(var(--radius) + 2px);
    border: 1px solid var(--border-light);
    /* 不用半透明 --card，避免深色模式正文与背景撞色 */
    background: var(--bg-2);
    box-shadow: var(--shadow);
    text-align: left;
    -webkit-overflow-scrolling: touch;
}

/* 合作伙伴 · 收益说明：桌面加宽 */
@media (min-width: 561px) {
    .price-modal-dialog--channel {
        width: min(960px, 94vw);
        max-height: min(92vh, 860px);
        padding: 32px 36px 28px;
    }

    .price-modal-dialog--channel .price-modal-title {
        font-size: 1.45rem;
        margin-bottom: 10px;
    }

    .price-modal-dialog--channel .price-modal-desc {
        font-size: 14px;
        max-width: none;
        margin-bottom: 18px;
    }

    .price-modal-dialog--channel .pc-footnote {
        font-size: 13px;
        line-height: 1.6;
    }

    .price-modal-dialog--channel .pc-table-wrap {
        margin-bottom: 16px;
    }

    .price-modal-dialog--channel .pc-table {
        font-size: 15px;
    }

    .price-modal-dialog--channel .pc-table th,
    .price-modal-dialog--channel .pc-table td {
        padding: 14px 16px;
    }

    .price-modal-dialog--channel .pc-table th {
        font-size: 13px;
    }

    .price-modal-dialog--channel .pc-table .pc-role-sub {
        font-size: 11px;
    }

    .price-modal-dialog--channel .pc-table .pc-dual-line {
        font-size: 15px;
    }

    .price-modal-dialog--channel .hero-actions {
        gap: 12px;
    }
}

@media (max-width: 560px) {
    .price-modal-dialog {
        width: 100%;
        max-height: min(88vh, 720px);
        border-radius: 16px 16px 0 0;
        padding: 20px 16px calc(20px + env(safe-area-inset-bottom, 0px));
    }

    .cap-scene-bar-head {
        width: 100%;
        flex-direction: column;
        align-items: stretch;
        gap: 10px;
    }

    .cap-scene-pack-label {
        font-size: 13px;
    }

    .price-entry-btn {
        width: 100%;
        min-height: 44px;
        padding: 12px 16px;
        font-size: 14px;
    }
}

.price-modal-close {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 36px;
    height: 36px;
    border: 0;
    border-radius: 10px;
    background: var(--btn-ghost-bg);
    color: var(--text-2);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.price-modal-close:hover {
    background: var(--btn-ghost-hover);
    color: var(--text);
}

.price-modal-title {
    margin: 0 36px 8px 0;
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--text);
}

.price-modal-desc {
    margin: 0 0 16px;
    font-size: 13px;
    line-height: 1.55;
    color: var(--text-2);
}

.price-tabs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    margin: 0 0 16px;
}

.price-tab {
    appearance: none;
    margin: 0;
    padding: 10px 12px;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: var(--bg);
    color: var(--text-2);
    font: inherit;
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
}

.price-tab.is-active {
    border-color: color-mix(in srgb, var(--accent-sky) 45%, var(--border));
    background: color-mix(in srgb, var(--accent-sky) 12%, var(--card));
    color: var(--accent-sky);
}

.price-field-label {
    display: block;
    margin: 0 0 8px;
    font-size: 13px;
    font-weight: 700;
    color: var(--text);
}

.price-scene-select {
    width: 100%;
    margin: 0 0 14px;
    padding: 10px 12px;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: var(--bg);
    color: var(--text);
    font: inherit;
    font-size: 14px;
}

.price-card {
    margin: 0 0 16px;
    padding: 16px 14px;
    border-radius: 12px;
    border: 1px solid var(--border);
    background: var(--bg);
}

.price-card-label {
    display: block;
    margin: 0 0 8px;
    font-size: 13px;
    font-weight: 700;
    color: var(--text);
}

.price-card-row {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 8px 10px;
}

.price-card-lab {
    font-size: 12px;
    color: var(--text-3);
}

.price-card-original {
    font-size: 14px;
    color: var(--text-3);
    text-decoration: line-through;
}

.price-card-now {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--accent-sky);
    line-height: 1.1;
}

.price-card-unit {
    font-size: 13px;
    color: var(--text-2);
}

.price-card-hint {
    margin: 10px 0 0;
    font-size: 12px;
    line-height: 1.5;
    color: var(--text-3);
}

.price-card-error {
    margin: 0;
    font-size: 13px;
    line-height: 1.55;
    color: var(--text-2);
}

/* 推荐官佣金简易表 */
.pc-table-wrap {
    margin: 0 0 12px;
    border: 1px solid var(--border-light);
    border-radius: 12px;
    overflow-x: auto;
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
    background: color-mix(in srgb, var(--accent-sky) 4%, var(--card));
}

.pc-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.pc-table th,
.pc-table td {
    padding: 10px 12px;
    text-align: left;
    border-bottom: 1px solid var(--border-light);
    vertical-align: middle;
}

.pc-table th {
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.02em;
    color: var(--text-3);
    background: color-mix(in srgb, var(--accent-sky) 8%, transparent);
}

.pc-table tr:last-child td {
    border-bottom: 0;
}

.pc-table .pc-scene {
    font-weight: 650;
    color: var(--text);
}

.pc-table .pc-num {
    font-variant-numeric: tabular-nums;
    font-weight: 750;
    color: var(--accent-sky);
    text-align: right;
    white-space: nowrap;
}

.pc-table th.pc-num-h {
    text-align: right;
}

.pc-table th.pc-role-h {
    text-align: right;
    line-height: 1.25;
    font-weight: 750;
    color: var(--text-2);
}

.pc-table .pc-role-sub {
    display: inline-block;
    margin-top: 2px;
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0;
    color: var(--text-3);
}

.pc-table .pc-dual {
    text-align: right;
    vertical-align: top;
}

.pc-table .pc-dual-line {
    display: block;
    font-variant-numeric: tabular-nums;
    font-weight: 750;
    color: var(--accent-sky);
    line-height: 1.35;
}

.pc-table .pc-dual-line + .pc-dual-line {
    margin-top: 4px;
    opacity: 0.92;
}

.pc-table .pc-dual-line em {
    display: inline-block;
    min-width: 2em;
    margin-right: 4px;
    font-style: normal;
    font-size: 11px;
    font-weight: 600;
    color: var(--text-3);
}

.pc-table-empty,
.pc-table-error {
    margin: 0;
    padding: 16px 14px;
    font-size: 13px;
    line-height: 1.55;
    color: var(--text-2);
}

.pc-table-error {
    color: #f87171;
}

.pc-cards--mobile {
    display: none;
}

.pc-card {
    border: 1px solid var(--border-light);
    border-radius: 14px;
    padding: 14px 14px 12px;
    background: color-mix(in srgb, var(--accent-sky) 5%, var(--card));
}

.pc-card + .pc-card {
    margin-top: 10px;
}

.pc-card-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 10px;
    margin-bottom: 12px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border-light);
}

.pc-card-title {
    margin: 0;
    font-size: 15px;
    font-weight: 750;
    color: var(--text);
    line-height: 1.3;
}

.pc-card-fee {
    margin: 0;
    flex-shrink: 0;
    font-size: 12px;
    color: var(--text-3);
    white-space: nowrap;
}

.pc-card-fee strong {
    font-size: 14px;
    font-weight: 750;
    color: var(--accent-sky);
    font-variant-numeric: tabular-nums;
}

.pc-card-rows {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.pc-card-row {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.pc-card-role {
    font-size: 12px;
    font-weight: 700;
    color: var(--text-2);
    letter-spacing: 0.02em;
}

.pc-card-amounts {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}

.pc-card-amt {
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: 8px 10px;
    border-radius: 10px;
    background: color-mix(in srgb, var(--accent-sky) 10%, transparent);
    font-size: 15px;
    font-weight: 750;
    font-variant-numeric: tabular-nums;
    color: var(--accent-sky);
    line-height: 1.25;
}

.pc-card-amt em {
    font-style: normal;
    font-size: 11px;
    font-weight: 600;
    color: var(--text-3);
}

@media (max-width: 560px) {
    .price-modal-dialog--channel {
        width: 100%;
        max-height: min(92vh, 860px);
        padding: 18px 14px calc(18px + env(safe-area-inset-bottom, 0px));
    }

    .price-modal-dialog--channel .price-modal-title {
        font-size: 1.2rem;
        margin-right: 40px;
    }

    .price-modal-dialog--channel .price-modal-desc {
        font-size: 13px;
        margin-bottom: 12px;
    }

    .price-modal-dialog--channel .pc-table-wrap {
        border: 0;
        background: transparent;
        overflow: visible;
        margin-bottom: 10px;
    }

    .price-modal-dialog--channel .pc-table--desktop {
        display: none;
    }

    .price-modal-dialog--channel .pc-cards--mobile {
        display: block;
    }

    .price-modal-dialog--channel .pc-footnote {
        font-size: 12px;
        line-height: 1.55;
    }

    .price-modal-dialog--channel .hero-actions {
        display: grid;
        grid-template-columns: 1fr;
        gap: 10px;
    }

    .price-modal-dialog--channel .hero-actions .btn {
        width: 100%;
        justify-content: center;
    }
}

.pc-footnote {
    margin: 0 0 14px;
    font-size: 12px;
    line-height: 1.5;
    color: var(--text-3);
}

/* 深色模式：弹层用不透明底，避免半透明 --card 与正文撞色、看不清 */
[data-theme="dark"] .price-modal-dialog,
[data-theme="dark"] .cs-modal-dialog,
[data-theme="dark"] .intro-video-modal-dialog,
:root:not([data-theme="light"]) .book-flow-modal-dialog,
:root:not([data-theme="light"]) .inquiry-modal-dialog {
    background: linear-gradient(165deg, rgba(18, 28, 48, 0.98) 0%, rgba(10, 16, 32, 0.99) 100%);
    border-color: rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .book-flow-modal-title,
[data-theme="dark"] .book-flow-modal-lead,
[data-theme="dark"] .inquiry-modal-title,
[data-theme="dark"] .inquiry-modal-desc,
:root:not([data-theme="light"]) .book-flow-modal-title,
:root:not([data-theme="light"]) .book-flow-modal-lead,
:root:not([data-theme="light"]) .inquiry-modal-title,
:root:not([data-theme="light"]) .inquiry-modal-desc {
    color: #f1f5f9;
}

[data-theme="dark"] .book-flow-modal-close,
:root:not([data-theme="light"]) .book-flow-modal-close,
:root:not([data-theme="light"]) .inquiry-modal-close {
    background: rgba(255, 255, 255, 0.12);
    color: #f1f5f9;
}

[data-theme="dark"] .price-modal-title,
[data-theme="dark"] .cs-modal-title,
[data-theme="dark"] .intro-video-modal-title,
:root:not([data-theme="light"]) .price-modal-title,
:root:not([data-theme="light"]) .cs-modal-title,
:root:not([data-theme="light"]) .intro-video-modal-title {
    color: #f8fafc;
}

[data-theme="dark"] .price-modal-desc,
[data-theme="dark"] .cs-modal-desc,
[data-theme="dark"] .intro-video-modal-desc,
[data-theme="dark"] .pc-footnote,
[data-theme="dark"] .price-card-hint,
[data-theme="dark"] .price-card-lab,
[data-theme="dark"] .price-card-original,
[data-theme="dark"] .price-card-unit,
:root:not([data-theme="light"]) .price-modal-desc,
:root:not([data-theme="light"]) .cs-modal-desc,
:root:not([data-theme="light"]) .intro-video-modal-desc {
    color: rgba(226, 232, 240, 0.82);
}

[data-theme="dark"] .price-modal-close,
[data-theme="dark"] .cs-modal-close,
[data-theme="dark"] .intro-video-modal-close,
:root:not([data-theme="light"]) .price-modal-close,
:root:not([data-theme="light"]) .cs-modal-close,
:root:not([data-theme="light"]) .intro-video-modal-close {
    background: rgba(255, 255, 255, 0.12);
    color: #f1f5f9;
}

[data-theme="dark"] .cs-modal-qr,
:root:not([data-theme="light"]) .cs-modal-qr {
    background: #ffffff;
    border-color: rgba(255, 255, 255, 0.2);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
}

[data-theme="dark"] .price-tab,
[data-theme="dark"] .price-scene-select,
[data-theme="dark"] .price-card {
    background: #0c1324;
    border-color: rgba(148, 163, 184, 0.28);
    color: #f1f5f9;
}

[data-theme="dark"] .price-scene-select {
    color-scheme: dark;
}

[data-theme="dark"] .price-tab.is-active {
    background: rgba(56, 189, 248, 0.2);
    border-color: rgba(56, 189, 248, 0.5);
    color: #7dd3fc;
}

[data-theme="dark"] .price-entry-btn--channel {
    border-color: rgba(251, 191, 36, 0.4);
    background: rgba(251, 191, 36, 0.12);
    color: #fbbf24;
}

[data-theme="dark"] .price-entry-btn--channel:hover,
[data-theme="dark"] .price-entry-btn--channel:focus-visible {
    border-color: rgba(251, 191, 36, 0.6);
    background: rgba(251, 191, 36, 0.18);
    color: #fde68a;
}

[data-theme="dark"] .price-field-label,
[data-theme="dark"] .price-card-label,
[data-theme="dark"] .pc-table .pc-scene {
    color: #f8fafc;
}

[data-theme="dark"] .price-card-now,
[data-theme="dark"] .pc-table .pc-num,
[data-theme="dark"] .pc-table .pc-dual-line {
    color: #7dd3fc;
}

[data-theme="dark"] .pc-table .pc-dual-line em,
[data-theme="dark"] .pc-table .pc-role-sub {
    color: rgba(226, 232, 240, 0.62);
}

[data-theme="dark"] .price-card-error,
[data-theme="dark"] .pc-table-empty {
    color: rgba(226, 232, 240, 0.85);
}

[data-theme="dark"] .pc-table-error {
    color: #fca5a5;
}

[data-theme="dark"] .pc-table-wrap {
    background: #0c1324;
    border-color: rgba(148, 163, 184, 0.28);
}

[data-theme="dark"] .pc-card {
    background: rgba(12, 19, 36, 0.95);
    border-color: rgba(148, 163, 184, 0.28);
}

[data-theme="dark"] .pc-card-title {
    color: #f8fafc;
}

[data-theme="dark"] .pc-card-fee strong,
[data-theme="dark"] .pc-card-amt {
    color: #7dd3fc;
}

[data-theme="dark"] .pc-card-amt {
    background: rgba(56, 189, 248, 0.12);
}

[data-theme="dark"] .pc-card-role,
[data-theme="dark"] .pc-card-fee,
[data-theme="dark"] .pc-card-amt em {
    color: rgba(226, 232, 240, 0.7);
}

[data-theme="dark"] .pc-table th,
[data-theme="dark"] .pc-table td {
    border-bottom-color: rgba(148, 163, 184, 0.16);
}

[data-theme="dark"] .pc-table th {
    color: rgba(226, 232, 240, 0.82);
    background: rgba(56, 189, 248, 0.14);
}

[data-theme="dark"] .promoter-gain-pros {
    color: #fbbf24;
}

.price-cta {
    width: 100%;
    justify-content: center;
    text-align: center;
}

.results-note a {
    color: var(--blue-light);
    font-weight: 600;
    text-decoration: none;
}

.results-note a:hover { text-decoration: underline; }

@media (max-width: 1024px) {
    .demo-stage {
        grid-template-columns: 1fr;
        gap: 28px;
    }
    .demo-stage-copy {
        order: 1;
    }
    .demo-stage-media {
        order: 2;
        width: 100%;
        max-width: none;
    }
    .demo-stage-title { text-align: center; }
    .demo-stage-lead {
        text-align: left;
        margin-left: 0;
        margin-right: 0;
        max-width: none;
        width: 100%;
    }
    .demo-stage-copy { text-align: center; }
    .demo-flow {
        text-align: left;
        max-width: 420px;
        margin-left: auto;
        margin-right: auto;
    }
    .demo-stage-cta { margin-left: auto; margin-right: auto; }
    .demo-pick-unsure { text-align: center; }
    .book-steps {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px 12px;
        padding: 24px 16px 8px;
    }

    .book-step:not(:last-child)::after {
        display: none;
    }
}

@media (max-width: 768px) {
    .demo-section--stage {
        min-height: 0;
        padding: 56px 0;
    }

    .book-steps {
        grid-template-columns: 1fr;
        gap: 18px;
    }

    .book-bar-actions {
        width: 100%;
        padding: 16px 16px 22px;
    }

    .book-bar-actions .btn {
        flex: 1 1 auto;
        justify-content: center;
    }
}

/* ===== Premium motion & finish 2026-08 ===== */
html { scroll-behavior: smooth; }

.site-premium {
    --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
    --ease-soft: cubic-bezier(0.4, 0, 0.2, 1);
}

.site-premium .hero::after {
    content: '';
    position: absolute;
    inset: 0;
    pointer-events: none;
    background:
        radial-gradient(ellipse 50% 40% at 20% 30%, rgba(22, 119, 255, 0.12), transparent 60%),
        radial-gradient(ellipse 40% 35% at 80% 70%, rgba(37, 99, 235, 0.08), transparent 55%);
    z-index: 0;
    animation: premiumMesh 14s ease-in-out infinite alternate;
}

.site-premium .hero::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: min(46vh, 340px);
    background: linear-gradient(
        180deg,
        transparent 0%,
        transparent 16%,
        color-mix(in srgb, var(--bg) 14%, transparent) 34%,
        color-mix(in srgb, var(--bg) 42%, transparent) 56%,
        color-mix(in srgb, var(--bg) 78%, transparent) 78%,
        var(--bg) 100%
    );
    pointer-events: none;
    z-index: 1;
}

@keyframes premiumMesh {
    from { opacity: 0.7; transform: scale(1); }
    to { opacity: 1; transform: scale(1.04); }
}

.site-premium .hero-layout { z-index: 1; }

.site-premium .btn {
    position: relative;
    overflow: hidden;
    transition: transform 0.35s var(--ease-out), box-shadow 0.35s var(--ease-out), background 0.25s, border-color 0.25s, color 0.25s;
}

.site-premium .btn-primary::after {
    content: '';
    position: absolute;
    top: 0;
    left: -120%;
    width: 60%;
    height: 100%;
    background: linear-gradient(105deg, transparent, rgba(255, 255, 255, 0.28), transparent);
    transform: skewX(-18deg);
    transition: left 0.55s var(--ease-out);
    pointer-events: none;
}

.site-premium .btn-primary:hover::after { left: 140%; }

.site-premium .btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 36px rgba(22, 119, 255, 0.45);
}

.site-premium .btn-ghost:hover {
    transform: translateY(-2px);
    border-color: rgba(22, 119, 255, 0.35);
    box-shadow: 0 8px 24px rgba(22, 119, 255, 0.08);
}

/* 首屏次按钮保持登录页玻璃态，不被通用 ghost 蓝边覆盖 */
.site-premium .hero-actions-wrap .hero-cta-secondary.btn-ghost:hover,
.site-premium .hero-actions-wrap .hero-cta-secondary.btn-ghost:focus-visible {
    color: #fff;
    background: rgba(255, 255, 255, 0.28);
    border-color: rgba(255, 255, 255, 0.55);
    box-shadow:
        0 8px 22px rgba(15, 23, 42, 0.28),
        0 0 0 1px rgba(147, 197, 253, 0.35);
    transform: translateY(-2px);
}

.site-premium .hero-cta-login:hover,
.site-premium .btn-login-cta:hover {
    transform: translateY(-2px);
}

.site-premium .hero-card {
    backdrop-filter: blur(18px) saturate(1.15);
    -webkit-backdrop-filter: blur(18px) saturate(1.15);
}

.site-premium .hc-nfc-ring {
    animation: nfcPulse 2.6s ease-in-out infinite, premiumRingSpin 12s linear infinite;
}

@keyframes premiumRingSpin {
    from { filter: drop-shadow(0 0 0 rgba(22, 119, 255, 0)); }
    50% { filter: drop-shadow(0 0 12px rgba(22, 119, 255, 0.35)); }
    to { filter: drop-shadow(0 0 0 rgba(22, 119, 255, 0)); }
}

.site-premium .hc-nfc-core {
    transition: transform 0.4s var(--ease-out), background 0.4s;
}

.site-premium .hero-card-front:hover .hc-nfc-core {
    transform: scale(1.06);
    background: rgba(22, 119, 255, 0.22);
}

.site-premium .section-eyebrow {
    position: relative;
    letter-spacing: 0.12em;
}

.site-premium .demo-stage-shell,
.site-premium .demo-showcase-shell.demo-stage-shell {
    position: relative;
    transition: transform 0.5s var(--ease-out), box-shadow 0.5s var(--ease-out);
}

.site-premium .demo-stage-shell::before,
.site-premium .demo-showcase-shell.demo-stage-shell::before {
    content: '';
    position: absolute;
    inset: -1px;
    border-radius: 19px;
    padding: 1px;
    background: linear-gradient(135deg, rgba(22, 119, 255, 0.55), transparent 40%, transparent 60%, rgba(105, 177, 255, 0.35));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
    opacity: 0.85;
    z-index: 2;
}

.site-premium .demo-stage-shell:hover,
.site-premium .demo-showcase-shell.demo-stage-shell:hover {
    transform: translateY(-6px) scale(1.01);
    box-shadow:
        0 36px 90px rgba(22, 119, 255, 0.22),
        0 16px 40px rgba(0, 0, 0, 0.2);
}

.site-premium .platform-video-play-cue {
    transition: transform 0.35s var(--ease-out), box-shadow 0.35s;
}

.site-premium .platform-video-poster:hover .platform-video-play-cue,
.site-premium .platform-video-poster:focus-visible .platform-video-play-cue {
    transform: scale(1.08);
    box-shadow: 0 12px 32px rgba(22, 119, 255, 0.4);
}

.site-premium .demo-flow-item {
    transition: background 0.3s, transform 0.35s var(--ease-out), padding-left 0.35s var(--ease-out);
    border-radius: 10px;
    margin-left: -8px;
    padding-left: 12px !important;
}

.site-premium .demo-flow-item:hover {
    background: rgba(22, 119, 255, 0.06);
    transform: translateX(4px);
}

.site-premium .demo-flow-num {
    transition: transform 0.35s var(--ease-out), box-shadow 0.35s;
}

.site-premium .demo-flow-item:hover .demo-flow-num {
    transform: scale(1.08);
    box-shadow: 0 0 0 4px var(--bg), 0 6px 16px rgba(22, 119, 255, 0.35);
}

.site-premium .result-card,
.site-premium .cap-card,
.site-premium .book-panel,
.site-premium .book-steps,
.site-premium .promoter-panel {
    transition: transform 0.45s var(--ease-out), box-shadow 0.45s var(--ease-out), border-color 0.35s;
}

.site-premium .result-card:hover,
.site-premium .cap-card:hover {
    transform: translateY(-6px);
    border-color: rgba(22, 119, 255, 0.35);
    box-shadow: 0 20px 48px rgba(22, 119, 255, 0.12);
}

.site-premium .cap-primary:hover {
    box-shadow: 0 22px 56px rgba(22, 119, 255, 0.2);
}

.site-premium .book-panel:hover,
.site-premium .book-steps:hover {
    border-color: rgba(22, 119, 255, 0.3);
    box-shadow: 0 16px 40px rgba(22, 119, 255, 0.1);
}

.site-premium .promoter-stat {
    transition: transform 0.35s var(--ease-out), border-color 0.3s, background 0.3s;
}

.site-premium .promoter-stat:hover {
    transform: translateY(-3px);
    border-color: rgba(22, 119, 255, 0.3);
    background: rgba(22, 119, 255, 0.06);
}

.site-premium .cta-panel {
    position: relative;
    overflow: hidden;
    transition: transform 0.45s var(--ease-out), box-shadow 0.45s;
}

.site-premium .cta-panel::before {
    content: '';
    position: absolute;
    width: 280px;
    height: 280px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.12);
    top: -80px;
    right: -60px;
    filter: blur(2px);
    animation: premiumCtaOrb 10s ease-in-out infinite alternate;
    pointer-events: none;
}

.site-premium .cta-panel::after {
    content: '';
    position: absolute;
    width: 180px;
    height: 180px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.08);
    bottom: -50px;
    left: 10%;
    animation: premiumCtaOrb 12s ease-in-out infinite alternate-reverse;
    pointer-events: none;
}

@keyframes premiumCtaOrb {
    from { transform: translate(0, 0); }
    to { transform: translate(-20px, 16px); }
}

.site-premium .cta-panel > * { position: relative; z-index: 1; }

.site-premium .reveal {
    opacity: 0;
    transform: translateY(36px) scale(0.985);
    filter: blur(4px);
    transition:
        opacity 0.8s var(--ease-out),
        transform 0.8s var(--ease-out),
        filter 0.8s var(--ease-out);
}

.site-premium .reveal.visible {
    opacity: 1;
    transform: translateY(0) scale(1);
    filter: blur(0);
}

.site-premium .reveal-child {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity 0.55s var(--ease-out), transform 0.55s var(--ease-out);
}

.site-premium .reveal-child.is-in {
    opacity: 1;
    transform: translateY(0);
}

.site-premium .theme-toggle {
    transition: transform 0.3s var(--ease-out), border-color 0.25s, box-shadow 0.3s;
}

.site-premium .theme-toggle:hover {
    transform: translateY(-2px) rotate(12deg);
    box-shadow: 0 8px 24px rgba(22, 119, 255, 0.2);
}

.site-premium .jk-brand-pill {
    transition: box-shadow 0.35s, transform 0.35s var(--ease-out);
}

.site-premium .jk-brand-pill:hover {
    transform: translateY(-1px);
    box-shadow: 0 14px 28px rgba(37, 99, 235, 0.18);
}

.site-premium .cap-scene-tab {
    transition: transform 0.3s var(--ease-out), border-color 0.25s, background 0.25s, color 0.25s, box-shadow 0.25s;
}

.site-premium .cap-scene-tab:hover {
    transform: translateY(-2px);
}

.site-premium .industry-tags span {
    transition: transform 0.3s var(--ease-out), border-color 0.25s, background 0.25s, color 0.25s;
}

.site-premium .industry-tags span:hover {
    transform: translateY(-2px);
    border-color: rgba(22, 119, 255, 0.4);
    color: var(--blue-light);
}

@media (prefers-reduced-motion: reduce) {
    .site-premium *,
    .site-premium *::before,
    .site-premium *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    .site-premium .reveal {
        opacity: 1;
        transform: none;
        filter: none;
    }
}

.hero-eyebrow {
    display: inline-block;
    margin: 0 0 14px;
    padding: 6px 12px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.02em;
    color: var(--blue-light);
    background: rgba(22, 119, 255, 0.1);
    border: 1px solid rgba(22, 119, 255, 0.22);
    border-radius: 999px;
    animation: fadeUp 0.8s ease 0.05s both;
}

.hero-title-value {
    /* 默认；营销首屏由 .hero--marketing 覆盖为大标题 */
    font-size: clamp(17px, 1.7vw, 22px);
    line-height: 1.45;
    margin: 28px 0 0;
    max-width: 22em;
    letter-spacing: -0.01em;
    white-space: normal;
    font-weight: 750;
}

.hero-actions-wrap {
    flex-wrap: wrap;
    gap: 12px;
}

.btn-hero-video {
    gap: 10px;
}

.btn-hero-video-play {
    width: 28px;
    height: 28px;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    background: color-mix(in srgb, var(--accent-sky) 18%, transparent);
    color: var(--blue-light);
    box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--accent-sky) 28%, transparent);
    transition: background 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
}

.btn-hero-video-play svg {
    margin-left: 2px;
}

.btn-hero-video:hover .btn-hero-video-play,
.btn-hero-video:focus-visible .btn-hero-video-play {
    background: var(--accent-sky);
    color: #fff;
    box-shadow: 0 4px 14px rgba(22, 119, 255, 0.35);
}

/* hero-subcta 主样式见上方（对齐登录页透明度） */
.hero-subcta-quiet:hover {
    color: #fff !important;
}

.hero-subcta-link {
    border: 0;
    padding: 0;
    background: none;
    color: var(--blue-light);
    font: inherit;
    font-weight: 600;
    cursor: pointer;
    text-decoration: underline;
    text-underline-offset: 3px;
}

.hero-subcta-link:hover { color: var(--text); }

.demo-section {
    background: var(--bg);
}

.demo-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1.15fr;
    gap: 20px;
    align-items: stretch;
}

.demo-card {
    padding: 28px 26px;
    border-radius: var(--radius);
    background: var(--card);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
}

.demo-card h3 {
    font-size: 1.25rem;
    margin: 12px 0 16px;
}

.demo-card-badge {
    display: inline-block;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.04em;
    padding: 4px 10px;
    border-radius: 6px;
    color: #fff;
    background: var(--blue);
}

.demo-card-badge-alt {
    background: #0f766e;
}

.demo-steps {
    margin: 0 0 18px 1.1em;
    padding: 0;
    color: var(--text-2);
    font-size: 15px;
}

.demo-steps li { margin-bottom: 8px; }

.demo-card-foot {
    margin: 0;
    font-size: 13px;
    color: var(--text-3);
}

.demo-video {
    width: 100%;
}

.demo-video .platform-video-shell {
    height: auto;
    aspect-ratio: 16 / 9;
    min-height: 0;
}

.results-section { background: var(--bg); }

.results-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    max-width: 920px;
    margin: 0 auto;
}

.result-card {
    padding: 32px 28px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: var(--cap-featured-bg);
}

.result-num {
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 0.08em;
    color: var(--blue-light);
    margin-bottom: 12px;
}

.result-card h3 {
    font-size: 1.35rem;
    margin-bottom: 10px;
}

.result-card p {
    margin: 0;
    color: var(--text-2);
    font-size: 15px;
}

.results-note {
    text-align: center;
    margin: 24px 0 0;
    font-size: 14px;
    color: var(--text-3);
}

/* ===== Capabilities map（全站功能总结） ===== */
.cap-map-intro {
    margin: 0 0 28px;
    max-width: 40rem;
}

.cap-map-intro .section-eyebrow {
    display: block;
    margin-bottom: 10px;
}

.cap-map-intro .section-title {
    margin-bottom: 14px;
    text-align: left;
    white-space: normal;
    line-height: 1.28;
}

.cap-map-summary {
    margin: 0;
    max-width: 44rem;
    font-size: clamp(15px, 0.45vw + 13px, 17px);
    font-weight: 650;
    line-height: 1.55;
    color: var(--text);
}

.cap-map-choose {
    margin: 12px 0 0;
    max-width: 40rem;
    font-size: 14px;
    font-weight: 550;
    line-height: 1.55;
    color: var(--text-2);
}

@media (max-width: 768px) {
    .cap-map-choose {
        display: none;
    }
}

.cap-scene-bar {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
    margin: 0 0 24px;
}

.cap-scene-bar-head {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px 14px;
}

.cap-scene-pack-label {
    flex: 0 0 auto;
    font-size: 14px;
    font-weight: 800;
    letter-spacing: 0.02em;
    color: var(--accent-sky);
    line-height: 1.2;
    white-space: nowrap;
}

.cap-scene-pack-label::after {
    content: "：";
}

.cap-scene-tabs {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    align-content: flex-start;
    gap: 10px;
    margin: 0;
    padding: 0;
    flex: 0 0 auto;
    min-width: 0;
    min-height: 0;
}

.cap-scene-badge {
    display: inline-block;
    margin-left: 4px;
    padding: 1px 6px;
    border-radius: 999px;
    font-size: 10px;
    font-weight: 800;
    letter-spacing: 0.04em;
    color: #fff;
    background: var(--accent-sky);
    vertical-align: 1px;
}

.cap-scene-tab--lite {
    opacity: 0.78;
    font-weight: 500;
}

.cap-scene-tab--lite.is-active {
    opacity: 1;
}

.cap-scene-tab {
    appearance: none;
    margin: 0;
    font: inherit;
    font-size: 14px;
    font-weight: 600;
    line-height: 1.2;
    padding: 9px 16px;
    border-radius: 100px;
    border: 1px solid rgba(22, 119, 255, 0.18);
    background: rgba(22, 119, 255, 0.06);
    color: var(--text-2);
    cursor: pointer;
    flex: 0 0 auto;
    align-self: center;
    height: auto;
    white-space: nowrap;
    transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.cap-scene-tab:hover {
    border-color: rgba(22, 119, 255, 0.4);
    color: var(--blue-light);
}

.cap-scene-tab:focus-visible {
    outline: 2px solid var(--blue);
    outline-offset: 2px;
}

.cap-scene-tab.is-active {
    background: color-mix(in srgb, var(--accent-sky) 18%, transparent);
    border-color: color-mix(in srgb, var(--accent-sky) 55%, transparent);
    color: var(--accent-sky);
    box-shadow: 0 0 0 1px color-mix(in srgb, var(--accent-sky) 22%, transparent);
}

.cap-map {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
    transition: opacity 0.18s ease;
}

.cap-map.is-switching {
    opacity: 0.55;
}

.cap-map-group {
    --cap-tone: var(--accent-sky);
    margin: 0;
    padding: 20px 18px 16px;
    border-radius: var(--radius);
    border: 1px solid color-mix(in srgb, var(--cap-tone) 26%, var(--border));
    background:
        linear-gradient(165deg, color-mix(in srgb, var(--cap-tone) 12%, var(--card)), var(--card) 62%);
    box-shadow: inset 3px 0 0 var(--cap-tone), var(--shadow);
    min-width: 0;
}

.cap-map-group:nth-child(1) { --cap-tone: var(--accent-sky); }
.cap-map-group:nth-child(2) { --cap-tone: var(--accent-amber); }
.cap-map-group:nth-child(3) { --cap-tone: var(--accent-coral); }
.cap-map-group:nth-child(4) { --cap-tone: var(--accent-teal); }
.cap-map-group:nth-child(5) { --cap-tone: var(--accent-green); }
.cap-map-group:nth-child(6) { --cap-tone: var(--blue); }

.cap-map-group--douyin {
    border-color: color-mix(in srgb, var(--cap-tone) 36%, var(--border));
}

.cap-map-group-head {
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-bottom: 12px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-light);
}

.cap-map-group-title {
    margin: 0;
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--cap-tone);
    line-height: 1.3;
}

.cap-map-group-when {
    margin: 0;
    font-size: 12px;
    font-weight: 500;
    color: var(--text-3);
}

.cap-map-badge {
    margin: 0 0 10px;
    font-size: 12px;
    line-height: 1.45;
    font-weight: 600;
    color: var(--cap-tone);
}

.cap-map-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 0;
}

.cap-map-list li {
    position: relative;
    padding: 8px 0 8px 14px;
    border-bottom: 1px solid var(--border-light);
    font-size: 13.5px;
    line-height: 1.45;
    color: var(--text);
    font-weight: 500;
}

.cap-map-list li:last-child {
    border-bottom: none;
    padding-bottom: 2px;
}

.cap-map-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.95em;
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--cap-tone);
    opacity: 0.9;
}

@media (max-width: 960px) {
    .cap-map {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 560px) {
    .cap-map {
        grid-template-columns: 1fr;
    }

    .cap-map-intro {
        margin-bottom: 22px;
    }

    .cap-scene-bar {
        margin-bottom: 18px;
        align-items: stretch;
        flex-direction: column;
        gap: 10px;
    }

    .cap-scene-tabs {
        flex: 0 0 auto;
        gap: 8px;
        margin: 0;
        flex-wrap: nowrap;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        padding-bottom: 4px;
        scrollbar-width: thin;
        width: 100%;
        max-width: 100%;
        align-items: center;
    }

    .cap-scene-tab {
        flex: 0 0 auto;
        padding: 8px 14px;
        font-size: 13px;
        height: auto;
        align-self: center;
    }

    .cap-map-group {
        padding: 16px 14px 12px;
    }

    .cap-map-list li {
        font-size: 13px;
    }
}

.cap-kicker {
    display: inline-block;
    font-size: 12px;
    font-weight: 700;
    color: var(--text-3);
    margin-bottom: 10px;
    letter-spacing: 0.04em;
}

.cap-primary {
    border-color: rgba(22, 119, 255, 0.35);
    box-shadow: 0 12px 40px rgba(22, 119, 255, 0.12);
}

.cap-primary .cap-kicker { color: var(--blue-light); }

/* ===== 智剪（视频单品 · 克制彩色：主蓝 + 分色点缀） ===== */
.zhijian-section {
    --zj-sky: #38bdf8;
    --zj-amber: #fbbf24;
    --zj-coral: #fb7185;
    --zj-teal: #2dd4bf;
    --zj-green: #4ade80;
    --zj-blue: #60a5fa;
    overflow: hidden;
    background:
        radial-gradient(ellipse 72% 56% at 12% 6%, color-mix(in srgb, rgba(14, 165, 233, 0.14) 80%, transparent), transparent var(--section-radial-fade)),
        radial-gradient(ellipse 58% 48% at 88% 94%, color-mix(in srgb, rgba(22, 119, 255, 0.1) 80%, transparent), transparent var(--section-radial-fade)),
        var(--bg);
}

[data-theme="light"] .zhijian-section {
    --zj-sky: #0284c7;
    --zj-amber: #d97706;
    --zj-coral: #e11d48;
    --zj-teal: #0d9488;
    --zj-green: #16a34a;
    --zj-blue: #1677ff;
    background:
        radial-gradient(ellipse 72% 56% at 12% 6%, color-mix(in srgb, rgba(14, 165, 233, 0.18) 85%, transparent), transparent var(--section-radial-fade)),
        radial-gradient(ellipse 58% 48% at 88% 94%, color-mix(in srgb, rgba(22, 119, 255, 0.14) 85%, transparent), transparent var(--section-radial-fade)),
        radial-gradient(ellipse 50% 44% at 92% 8%, color-mix(in srgb, rgba(245, 158, 11, 0.1) 85%, transparent), transparent var(--section-radial-fade)),
        var(--bg);
}

.zhijian-intro {
    margin: 0 0 28px;
    max-width: 40rem;
}

.zhijian-intro .section-eyebrow {
    display: block;
    margin-bottom: 10px;
}

.zhijian-intro .section-title {
    margin-bottom: 14px;
    text-align: left;
    white-space: normal;
    line-height: 1.28;
}

.zhijian-lead {
    margin: 0;
    max-width: 44rem;
    font-size: clamp(15px, 0.45vw + 13px, 17px);
    font-weight: 650;
    line-height: 1.55;
    color: var(--text);
}

.zhijian-platforms {
    list-style: none;
    margin: 18px 0 0;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 10px 18px;
    align-items: center;
}

.zhijian-platforms li {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-2);
    letter-spacing: 0.02em;
}

.zhijian-platforms img {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    object-fit: contain;
    display: block;
    background: transparent;
    box-shadow: 0 4px 12px rgba(15, 23, 42, 0.1);
}

[data-theme="dark"] .zhijian-platforms img {
    background: transparent;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.35);
}

@media (max-width: 768px) {
    .zhijian-platforms {
        flex-wrap: nowrap;
        justify-content: space-between;
        gap: 8px;
        width: 100%;
        max-width: 100%;
    }

    .zhijian-platforms li {
        flex: 1 1 0;
        min-width: 0;
        flex-direction: column;
        align-items: center;
        justify-content: flex-start;
        gap: 6px;
        text-align: center;
        font-size: 12px;
        letter-spacing: 0;
    }

    .zhijian-platforms img {
        width: 40px;
        height: 40px;
        border-radius: 11px;
    }
}

.zhijian-choose {
    margin: 12px 0 0;
    max-width: 40rem;
    font-size: 14px;
    font-weight: 550;
    line-height: 1.55;
    color: var(--text-2);
}

.zhijian-uses {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
}

.zhijian-use {
    --zj-tone: var(--zj-sky);
    margin: 0;
    padding: 20px 18px 16px;
    border-radius: var(--radius);
    border: 1px solid color-mix(in srgb, var(--zj-tone) 26%, var(--border));
    background:
        linear-gradient(165deg, color-mix(in srgb, var(--zj-tone) 12%, var(--card)), var(--card) 62%);
    box-shadow: inset 3px 0 0 var(--zj-tone), var(--shadow);
    min-width: 0;
}

.zhijian-use--edit { --zj-tone: var(--zj-sky); }
.zhijian-use--key {
    --zj-tone: var(--zj-coral);
    border-color: color-mix(in srgb, var(--zj-tone) 42%, var(--border));
    box-shadow:
        inset 3px 0 0 var(--zj-tone),
        0 10px 28px color-mix(in srgb, var(--zj-tone) 14%, transparent);
}

.zhijian-use-flag {
    font-size: 0.92em;
    font-weight: 800;
    color: color-mix(in srgb, var(--zj-tone) 88%, var(--text));
}

.zhijian-use--data { --zj-tone: var(--zj-teal); }

.zhijian-use-kicker {
    margin: 0 0 8px;
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 0.06em;
    color: var(--zj-tone);
}

.zhijian-use h3 {
    margin: 0 0 14px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-light);
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--zj-tone);
    line-height: 1.3;
}

.zhijian-use--key h3 {
    margin-top: 0;
}

.zhijian-use dl {
    margin: 0;
}

.zhijian-use dl > div {
    display: grid;
    grid-template-columns: 2.6em 1fr;
    gap: 4px 12px;
    padding: 8px 0;
    border-bottom: 1px solid var(--border-light);
}

.zhijian-use dl > div:last-child {
    border-bottom: 0;
    padding-bottom: 2px;
}

.zhijian-use dt {
    font-size: 12px;
    font-weight: 700;
    color: var(--text-3);
    line-height: 1.55;
}

.zhijian-use dd {
    margin: 0;
    font-size: 14px;
    font-weight: 500;
    line-height: 1.55;
    color: var(--text);
}

.zhijian-body {
    min-width: 0;
}

.zhijian-why-title {
    margin: 0 0 14px;
    font-size: 16px;
    font-weight: 800;
    color: var(--text);
    letter-spacing: 0.02em;
}

.zhijian-why-title::after {
    content: "";
    display: block;
    width: 40px;
    height: 3px;
    margin-top: 8px;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--accent-sky), var(--blue));
}

.zhijian-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
    margin: 0;
}

.zhijian-card {
    --zj-tone: var(--zj-blue);
    position: relative;
    margin: 0;
    padding: 18px 16px 18px 18px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    background: var(--bg);
    box-shadow: inset 3px 0 0 var(--zj-tone);
    transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.zhijian-card:hover {
    transform: translateY(-2px);
    border-color: color-mix(in srgb, var(--zj-tone) 40%, var(--border));
    box-shadow:
        inset 3px 0 0 var(--zj-tone),
        0 10px 24px rgba(0, 0, 0, 0.12);
}

.zhijian-card--sky { --zj-tone: var(--zj-sky); }
.zhijian-card--amber { --zj-tone: var(--zj-amber); }
.zhijian-card--coral { --zj-tone: var(--zj-coral); }
.zhijian-card--teal { --zj-tone: var(--zj-teal); }
.zhijian-card--green { --zj-tone: var(--zj-green); }
.zhijian-card--blue { --zj-tone: var(--zj-blue); }

.zhijian-card-title {
    margin: 0 0 8px;
    font-size: 15px;
    font-weight: 800;
    color: var(--text);
    line-height: 1.3;
}

.zhijian-card-title::before {
    content: "";
    display: inline-block;
    width: 8px;
    height: 8px;
    margin-right: 8px;
    border-radius: 50%;
    background: var(--zj-tone);
    vertical-align: 0.05em;
}

.zhijian-card-desc {
    margin: 0;
    font-size: 13px;
    line-height: 1.65;
    color: var(--text-2);
}

@media (max-width: 960px) {
    .zhijian-uses {
        grid-template-columns: 1fr;
    }
}

.promoter-section {
    background:
        radial-gradient(ellipse 70% 55% at 0% 12%, var(--accent-wash-blue), transparent var(--section-radial-fade)),
        radial-gradient(ellipse 68% 52% at 8% 22%, var(--accent-wash-amber), transparent var(--section-radial-fade)),
        radial-gradient(ellipse 62% 50% at 95% 72%, var(--accent-wash-teal), transparent var(--section-radial-fade)),
        radial-gradient(ellipse 55% 45% at 100% 0%, var(--accent-wash-coral), transparent var(--section-radial-fade)),
        var(--bg);
}

.promoter-panel {
    display: grid;
    grid-template-columns: 1.35fr 0.9fr;
    grid-template-areas:
        "copy aside"
        "actions aside";
    gap: 28px;
    align-items: stretch;
    padding: 40px 36px;
    border-radius: calc(var(--radius) + 4px);
    border: 1px solid var(--border-light);
    background: var(--card);
    box-shadow: var(--shadow);
}

.promoter-panel--slim {
    grid-template-columns: 1fr;
    grid-template-areas:
        "head"
        "cards"
        "actions";
    gap: 22px;
    padding: 0;
    border: none;
    background: transparent;
    box-shadow: none;
}

.promoter-slim-head {
    grid-area: head;
}

.promoter-slim-head .section-title {
    margin-bottom: 10px;
}

.promoter-slim-lead {
    margin: 0;
    font-size: 15px;
    line-height: 1.6;
    color: var(--text-3);
}

@media (min-width: 721px) {
    .promoter-slim-lead {
        max-width: none;
        white-space: nowrap;
    }
}

@media (max-width: 720px) {
    .promoter-slim-lead-part--contact {
        display: block;
        margin-top: 4px;
    }
}

.promoter-slim-lead .demo-pick-link {
    margin: 0 0.15em;
    font-size: inherit;
    font-weight: 650;
    text-decoration-thickness: 1.5px;
}

.promoter-slim-lead .demo-pick-link[data-open-cs-modal] {
    color: var(--accent-sky);
}

.promoter-slim-lead .demo-pick-link[data-open-cs-modal]:hover,
.promoter-slim-lead .demo-pick-link[data-open-cs-modal]:focus-visible {
    color: var(--blue-light);
}

.promoter-slim-lead .demo-pick-link[href="#contact"] {
    color: var(--accent-teal);
}

.promoter-slim-lead .demo-pick-link[href="#contact"]:hover,
.promoter-slim-lead .demo-pick-link[href="#contact"]:focus-visible {
    color: color-mix(in srgb, var(--accent-teal) 72%, white);
}

.promoter-slim-cards {
    grid-area: cards;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}

.promoter-slim-card {
    --partner-tone: var(--accent-amber);
    margin: 0;
    padding: 20px 20px 18px 22px;
    border-radius: var(--radius);
    border: 1px solid color-mix(in srgb, var(--partner-tone) 28%, var(--border));
    background:
        linear-gradient(165deg, color-mix(in srgb, var(--partner-tone) 14%, var(--card)), var(--card) 62%);
    box-shadow: inset 3px 0 0 var(--partner-tone), var(--shadow);
    transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.promoter-slim-card--partner {
    --partner-tone: var(--accent-amber);
}

.promoter-slim-card--promoter {
    --partner-tone: var(--accent-sky);
}

.promoter-slim-card:hover {
    border-color: color-mix(in srgb, var(--partner-tone) 48%, var(--border));
    box-shadow: inset 3px 0 0 var(--partner-tone), 0 12px 28px color-mix(in srgb, var(--partner-tone) 16%, transparent);
    transform: translateY(-2px);
}

.promoter-slim-card h3 {
    margin: 0 0 12px;
    font-size: 18px;
    font-weight: 800;
    color: var(--partner-tone);
}

.promoter-slim-card ul {
    margin: 0;
    padding: 0 0 0 1.1em;
    color: var(--text-3);
    font-size: 14px;
    line-height: 1.7;
}

.promoter-slim-card li::marker {
    color: color-mix(in srgb, var(--partner-tone) 72%, var(--text-3));
}

.promoter-slim-card li + li {
    margin-top: 4px;
}

.promoter-slim-card .demo-pick-link {
    font-size: inherit;
    font-weight: 650;
    color: var(--partner-tone);
    text-decoration-thickness: 1.5px;
}

.promoter-slim-card .demo-pick-link:hover,
.promoter-slim-card .demo-pick-link:focus-visible {
    color: color-mix(in srgb, var(--partner-tone) 72%, var(--text-1));
    outline: none;
}

.promoter-panel--slim .promoter-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 14px 20px;
}

.promoter-panel--slim .promoter-actions .price-entry {
    margin: 0;
}

@media (max-width: 720px) {
    .promoter-slim-cards {
        grid-template-columns: 1fr;
    }

    .promoter-panel--slim .promoter-actions,
    .promoter-panel--slim .promoter-actions .hero-actions {
        flex-direction: column;
        align-items: stretch;
    }
}

.promoter-copy {
    grid-area: copy;
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.promoter-actions {
    grid-area: actions;
    align-self: start;
}

.promoter-copy .section-title {
    margin-bottom: 22px;
}

.promoter-label {
    display: block;
    margin: 0 0 8px;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.06em;
    line-height: 1.3;
    color: var(--blue);
}

.promoter-item {
    margin: 0 0 22px;
}

.promoter-text {
    margin: 0;
    max-width: 36em;
    font-size: 15px;
    line-height: 1.7;
    color: var(--text-2);
}

.promoter-text-mobile {
    display: none;
}

.promoter-highlight {
    margin: 10px 0 0;
    font-size: 14px;
    font-weight: 700;
    line-height: 1.5;
    color: var(--accent-amber);
    letter-spacing: 0.02em;
}

.promoter-flow {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px 6px;
    margin: 0 0 12px;
    padding: 0;
}

.promoter-flow-step {
    display: inline-flex;
    align-items: center;
    padding: 5px 11px;
    border-radius: 999px;
    border: 1px solid color-mix(in srgb, var(--accent-sky) 28%, transparent);
    background: color-mix(in srgb, var(--accent-sky) 10%, transparent);
    color: var(--text);
    font-size: 13px;
    font-weight: 600;
    white-space: nowrap;
}

.promoter-flow-step:nth-child(1) {
    border-color: color-mix(in srgb, var(--accent-sky) 32%, transparent);
    background: color-mix(in srgb, var(--accent-sky) 12%, transparent);
}
.promoter-flow-step:nth-child(3) {
    border-color: color-mix(in srgb, var(--accent-amber) 32%, transparent);
    background: color-mix(in srgb, var(--accent-amber) 12%, transparent);
}
.promoter-flow-step:nth-child(5) {
    border-color: color-mix(in srgb, var(--accent-teal) 32%, transparent);
    background: color-mix(in srgb, var(--accent-teal) 12%, transparent);
}
.promoter-flow-step:nth-child(7) {
    border-color: color-mix(in srgb, var(--accent-coral) 32%, transparent);
    background: color-mix(in srgb, var(--accent-coral) 12%, transparent);
}

.promoter-flow-arrow {
    color: var(--accent-amber);
    font-weight: 500;
    opacity: 0.8;
}

.promoter-bullets {
    margin: 0 0 0 1.1em;
    padding: 0;
    color: var(--text-2);
    font-size: 15px;
    line-height: 1.55;
}

.promoter-bullets li { margin-bottom: 6px; }
.promoter-bullets li:last-child { margin-bottom: 0; }

.promoter-aside {
    grid-area: aside;
    display: flex;
    flex-direction: column;
    gap: 12px;
    justify-content: center;
}

.promoter-stat {
    padding: 14px 16px;
    border-radius: var(--radius-sm);
    background: var(--surface-inset);
    border: 1px solid var(--border);
}

.promoter-stat--pitch {
    border-color: color-mix(in srgb, var(--accent-sky) 36%, transparent);
    background: linear-gradient(160deg, color-mix(in srgb, var(--accent-sky) 14%, var(--card)), var(--card));
}

.promoter-stat--proof {
    border-color: color-mix(in srgb, var(--accent-amber) 36%, transparent);
    background: linear-gradient(160deg, color-mix(in srgb, var(--accent-amber) 14%, var(--card)), var(--card));
}

.promoter-stat strong {
    display: block;
    font-size: 1.15rem;
    font-weight: 750;
    line-height: 1.3;
    color: var(--text);
    margin-bottom: 6px;
}

.promoter-stat--pitch strong { color: var(--accent-sky); }
.promoter-stat--proof strong { color: var(--accent-amber); }

.promoter-stat-body {
    min-width: 0;
}

.promoter-stat .promoter-label {
    margin-bottom: 6px;
}

.promoter-gains {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.promoter-gain strong {
    margin-bottom: 4px;
    font-size: 1.05rem;
}

.promoter-gain-pros {
    display: block;
    margin-top: 6px;
    font-size: 12px;
    font-weight: 650;
    line-height: 1.4;
    color: color-mix(in srgb, var(--accent-amber) 72%, var(--text));
}

.promoter-stat-hint {
    display: block;
    font-size: 13px;
    line-height: 1.45;
    color: var(--text-2);
}

.cta-section { padding-top: 40px; }

.cta-panel {
    text-align: center;
    padding: 56px 40px;
    border-radius: calc(var(--radius) + 6px);
    background: linear-gradient(135deg, #0b3d91 0%, #1677ff 48%, #0284c7 100%);
    color: #fff;
    box-shadow: 0 24px 64px rgba(22, 119, 255, 0.28);
}

.cta-title {
    font-size: clamp(1.6rem, 3vw, 2.1rem);
    margin-bottom: 10px;
}

.cta-desc {
    margin: 0 auto 28px;
    max-width: 28em;
    color: rgba(255, 255, 255, 0.82);
}

.cta-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
    align-items: center;
}

.cta-actions-more {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
    align-items: center;
}

.cta-panel .cta-text-link {
    appearance: none;
    -webkit-appearance: none;
    margin: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 13px 22px;
    border-radius: 11px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
    font: inherit;
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    line-height: 1.2;
}

.cta-panel .cta-text-link:hover {
    background: rgba(255, 255, 255, 0.14);
    color: #fff;
}

.cta-panel .btn-primary {
    background: #fff;
    color: #0958d9;
    box-shadow: none;
}

.cta-panel .btn-primary:hover {
    color: #0958d9;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
}

[data-theme="light"] .hero-eyebrow {
    color: #0958d9;
    background: rgba(22, 119, 255, 0.08);
}

[data-theme="light"] .cta-panel {
    background: linear-gradient(135deg, #0958d9 0%, #1677ff 52%, #0ea5e9 100%);
}

@media (max-width: 1024px) {
    .demo-grid {
        grid-template-columns: 1fr 1fr;
    }
    .demo-video {
        grid-column: 1 / -1;
    }
    .promoter-panel {
        grid-template-columns: 1fr;
        grid-template-areas:
            "copy"
            "actions"
            "aside";
    }
}

@media (max-width: 768px) {
    .demo-grid,
    .results-grid,
    .cap-grid-priority {
        grid-template-columns: 1fr;
    }
    .promoter-panel {
        padding: 28px 22px;
    }

    .promoter-panel--slim {
        padding: 0;
    }
    .cta-panel { padding: 48px 24px; }
    .hero-brand-title {
        font-size: clamp(32px, 8vw, 42px);
    }
    .hero-title,
    .hero-title-value,
    .hero--marketing .hero-title,
    .hero--marketing .hero-title-value {
        font-size: clamp(26px, 7.2vw, 34px);
    }
    .hero-tagline {
        max-width: 100%;
        font-size: 14px;
        line-height: 1.65;
        margin-bottom: 8px;
    }
    .hero-paths {
        max-width: 100%;
        margin-bottom: 22px;
        gap: 10px;
    }
    .hero-path {
        padding: 10px 0 10px 12px;
        gap: 12px;
    }
    .hero-path-desc {
        font-size: 13px;
    }
}

/* ===== 整站手机端 UX（≥769px 完全不受影响）===== */
.mobile-dock {
    display: none;
}

@media (max-width: 768px) {
    :root {
        --mobile-dock-h: 0px;
    }

    /* 手机端隐藏「含智剪」标注，避免首屏文案过挤 */
    .incl-zhi-mobile-hide {
        display: none !important;
    }

    html {
        -webkit-text-size-adjust: 100%;
        text-size-adjust: 100%;
    }

    /* 手机端屏蔽：底部快捷导航 */
    .mobile-dock {
        display: none !important;
    }

    /* 手机端屏蔽：页脚导航 */
    .footer-nav-group {
        display: none !important;
    }

    /* 手机禁用滚动显隐动画的 blur（会破坏点击命中） */
    .site-premium .reveal,
    .site-premium .reveal.visible,
    .reveal,
    .reveal.visible,
    .reveal.reveal--static {
        opacity: 1 !important;
        transform: none !important;
        filter: none !important;
        transition: none !important;
    }

    .site-premium .reveal-child,
    .site-premium .reveal-child.is-in {
        opacity: 1 !important;
        transform: none !important;
        transition: none !important;
    }

    /* 减轻 GPU：弹层不做毛玻璃 */
    .price-modal-backdrop,
    .cs-modal-backdrop {
        backdrop-filter: none !important;
        -webkit-backdrop-filter: none !important;
    }

    .container {
        padding-left: 16px;
        padding-right: 16px;
    }

    .section {
        padding: 52px 0;
    }

    .section-title {
        font-size: clamp(1.35rem, 5.6vw, 1.7rem);
        line-height: 1.28;
        letter-spacing: -0.02em;
    }

    .section-eyebrow {
        font-size: 11px;
        margin-bottom: 8px;
    }

    .theme-toggle {
        top: max(10px, env(safe-area-inset-top, 0px));
        right: max(10px, env(safe-area-inset-right, 0px));
        width: 40px;
        height: 40px;
        border-radius: 11px;
    }

    .scroll-indicator {
        display: none;
    }

    /* —— Hero：一屏可读、按钮好点 —— */
    .hero {
        min-height: auto;
        padding: calc(72px + env(safe-area-inset-top, 0px)) 0 48px;
    }

    .hero-title,
    .hero-title-value,
    .hero--marketing .hero-title,
    .hero--marketing .hero-title-value {
        white-space: normal;
        font-size: clamp(25px, 7vw, 32px);
        line-height: 1.22;
        letter-spacing: -0.03em;
    }

    .hero-outcomes {
        gap: 8px;
        margin: 14px 0 12px;
        flex-wrap: wrap;
        justify-content: center;
    }

    .hero-outcomes span {
        font-size: 13px;
        padding: 4px 0;
    }

    .hero-outcomes span + span::before {
        margin: 0 8px 0 0;
    }

    .hero-tagline {
        font-size: 13px;
        line-height: 1.6;
        margin-bottom: 18px;
    }

    .hero-tagline-br {
        display: none;
    }

    .hero-paths {
        margin-bottom: 18px;
        gap: 8px;
    }

    .hero-path-name {
        font-size: 15px;
    }

    .hero-path-desc {
        font-size: 12.5px;
        line-height: 1.55;
    }

    .hero-actions {
        margin-top: 20px;
        gap: 10px;
        flex-direction: column;
        align-items: stretch;
        width: 100%;
        max-width: 360px;
    }

    .hero-actions .btn {
        width: 100%;
        min-height: 48px;
        justify-content: center;
        touch-action: manipulation;
    }

    .hero-actions .btn-login-cta,
    .hero-actions .hero-cta-login {
        width: 100%;
        min-height: 50px;
    }

    /* 手机首屏：只留主按钮 + 推荐官；流程入口桌面保留 */
    .hero-cta-desktop-only {
        display: none !important;
    }

    .hero-subcta {
        margin-top: 14px;
        font-size: 13px;
        line-height: 1.55;
        text-align: center;
        color: var(--text-2);
    }

    .hero-subcta-link {
        font-size: 13px;
    }

    /* —— 怎么选 / 轮播图 —— */
    .demo-section--stage {
        padding: 44px 0;
    }

    .demo-showcase-caption {
        padding: 9px 10px 10px;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .demo-showcase-caption-title,
    .demo-showcase-caption-desc {
        font-size: 12px;
        line-height: 1.35;
    }

    .demo-browser-chrome {
        gap: 8px;
        padding: 5px 8px 4px;
    }

    .demo-browser-bar {
        padding: 3px 3px 3px 8px;
    }

    .demo-browser-sep,
    .demo-browser-label {
        display: none;
    }

    .demo-showcase-enter-fs {
        top: 8px;
        right: 8px;
        padding: 8px 12px;
        font-size: 12px;
    }

    .demo-showcase-exit-fs {
        top: 10px;
        right: 10px;
        padding: 8px 14px;
        font-size: 13px;
    }

    .demo-showcase-nav {
        width: 42px;
        height: 42px;
    }

    .demo-showcase-nav--prev {
        left: 10px;
    }

    .demo-showcase-nav--next {
        right: 10px;
    }

    .showcase-fs-nav {
        width: 44px;
        height: 44px;
    }

    .showcase-fs-nav--prev {
        left: 4px;
    }

    .showcase-fs-nav--next {
        right: 4px;
    }

    .demo-showcase-slide img {
        padding: 3px 6px;
    }

    .demo-showcase-dots {
        padding: 8px 10px 6px;
    }

    .intro-video-modal {
        padding: 16px;
        align-items: center;
        justify-content: center;
    }

    .intro-video-modal-dialog {
        padding: 20px 16px 16px;
        width: min(100%, 420px);
        margin: auto;
    }

    .intro-video-modal-title {
        font-size: 1.05rem;
        margin-bottom: 12px;
    }

    .demo-stage {
        gap: 22px;
    }

    .demo-section--stage {
        min-height: auto;
        padding: 44px 0;
    }

    .demo-stage-title {
        font-size: clamp(1.35rem, 5.5vw, 1.65rem);
    }

    .demo-pick-card {
        padding: 14px 14px;
    }

    .demo-stage-lead {
        font-size: clamp(11px, 3.25vw, 13px);
        line-height: 1.5;
        gap: 5px;
    }

    .demo-stage-lead-line {
        white-space: nowrap;
    }

    .demo-flow {
        max-width: none;
        width: 100%;
        padding: 14px 14px;
        gap: 10px;
    }

    .demo-flow-item {
        font-size: 13px;
        line-height: 1.45;
    }

    .demo-flow-item p {
        display: none;
    }

    .platform-split {
        gap: 18px;
    }

    .platform-video-shell {
        border-radius: 14px;
    }

    /* —— 行业能力图 —— */
    .cap-map-summary {
        font-size: 14px;
        line-height: 1.55;
    }

    .cap-scene-bar-head {
        gap: 8px;
    }

    .cap-scene-tabs {
        margin: 0 -16px;
        padding: 2px 16px 8px;
        scroll-padding-inline: 16px;
    }

    .cap-scene-tab {
        min-height: 40px;
        padding: 8px 14px;
    }

    .cap-map-group {
        border-radius: 14px;
    }

    .cap-map-list li {
        padding-left: 14px;
        line-height: 1.5;
    }

    /* —— 智剪 —— */
    .zhijian-use {
        padding: 16px 14px 14px;
        border-radius: 16px;
    }

    .zhijian-hl,
    .zhijian-card {
        border-radius: 12px;
    }

    /* —— 推荐官 —— */
    .promoter-panel {
        display: flex;
        flex-direction: column;
        padding: 22px 16px;
        border-radius: 16px;
        gap: 18px;
    }

    .promoter-panel--slim {
        padding: 0;
        border-radius: 0;
        border: none;
        background: transparent;
        box-shadow: none;
    }

    .promoter-copy,
    .promoter-aside,
    .promoter-actions {
        grid-area: unset;
        width: 100%;
    }

    .promoter-copy {
        order: 1;
    }

    .promoter-aside {
        order: 2;
    }

    .promoter-actions {
        order: 3;
    }

    .promoter-login-btn {
        display: none;
    }

    .promoter-item {
        margin-bottom: 16px;
    }

    .promoter-text-desktop {
        display: none;
    }

    .promoter-text-mobile {
        display: block;
    }

    .promoter-highlight {
        font-size: 12px;
        line-height: 1.45;
        margin-top: 8px;
    }

    .promoter-flow {
        flex-wrap: nowrap;
        gap: 4px 3px;
        justify-content: flex-start;
        overflow: hidden;
    }

    .promoter-flow-step {
        font-size: 11px;
        padding: 4px 6px;
        flex-shrink: 0;
    }

    .promoter-flow-arrow {
        font-size: 11px;
        flex-shrink: 0;
        opacity: 0.75;
    }

    .promoter-actions .hero-actions,
    .promoter-actions .price-entry {
        width: 100%;
    }

    .promoter-actions .hero-actions {
        max-width: none;
        flex-direction: column;
    }

    .promoter-actions .hero-actions .btn,
    .promoter-actions .price-entry-btn,
    .promoter-actions .price-entry-btn--channel {
        width: 100%;
        min-height: 46px;
    }

    .promoter-aside {
        gap: 10px;
    }

    .promoter-stat {
        padding: 14px 14px;
    }

    /* 手机首屏：方案卡片已表达双路径，隐藏重复文案条 */
    .hero-paths {
        display: none !important;
    }

    /* 怎么选：三步说明手机只保留标题，减少纵向堆叠 */
.demo-flow-item p {
        display: none;
    }

    .demo-flow-action {
        display: block;
        width: 100%;
        margin: 0;
        padding: 0;
        border: 0;
        background: none;
        color: inherit;
        font: inherit;
        text-align: left;
        cursor: pointer;
        -webkit-tap-highlight-color: rgba(22, 119, 255, 0.15);
    }

    .demo-flow-action strong {
        font-size: 13px;
        line-height: 1.45;
        color: var(--blue-light);
        text-decoration: underline;
        text-decoration-color: color-mix(in srgb, var(--blue-light) 45%, transparent);
        text-underline-offset: 3px;
    }

    .demo-flow-item strong {
        font-size: 13px;
        line-height: 1.45;
    }

    .demo-stage-cta {
        width: 100%;
        max-width: none;
    }

    .demo-pick-unsure {
        text-align: center;
    }

    /* 推荐官：手机隐藏子弹点，流程一行已有摘要 */
    .promoter-bullets {
        display: none;
    }

    .promoter-highlight {
        font-size: 12px;
        line-height: 1.5;
    }

    .promoter-stat-hint {
        font-size: 12px;
        line-height: 1.5;
    }

    /* 页脚：手机用战略/合作/业务替代品牌区长文案；底部口号保留 */
    .footer-meta,
    .footer-about-lead {
        display: none;
    }

    .footer-about {
        margin-bottom: 14px;
    }

    .footer-creds {
        display: flex;
        margin-top: 2px;
        gap: 10px;
    }

    .footer-creds li {
        font-size: 12px;
        line-height: 1.55;
    }

    .footer-brand-block .footer-cta {
        width: 100%;
        max-width: none;
    }

    /* —— 免费体验四步（弹窗内仍用 book-steps） —— */
    .book-panel {
        border-radius: 16px;
        overflow: hidden;
    }

    .book-steps {
        padding: 20px 14px 6px;
        gap: 14px;
    }

    .book-step-title {
        font-size: 15px;
    }

    .book-step-desc {
        font-size: 13px;
        line-height: 1.45;
    }

    .book-bar-actions {
        flex-direction: column;
        gap: 10px;
        padding: 14px 14px calc(14px + env(safe-area-inset-bottom, 0px));
    }

    .book-bar-actions .btn {
        width: 100%;
        min-height: 48px;
    }

    /* —— CTA —— */
    .cta-panel {
        padding: 36px 18px;
        border-radius: 18px;
    }

    .cta-title {
        font-size: clamp(1.35rem, 5.5vw, 1.65rem);
    }

    .cta-desc {
        font-size: 14px;
        margin-bottom: 20px;
    }

    .cta-actions {
        flex-direction: column;
        align-items: stretch;
        gap: 10px;
        width: 100%;
        max-width: 360px;
        margin-left: auto;
        margin-right: auto;
    }

    .cta-actions .btn {
        width: 100%;
        min-height: 48px;
        justify-content: center;
    }

    .cta-actions-more {
        gap: 8px 18px;
        padding-top: 2px;
    }

    .cta-panel .cta-text-link {
        padding: 8px 2px;
        min-height: 40px;
        border: 0;
        background: transparent;
        font-size: 13px;
        font-weight: 600;
        text-decoration: underline;
        text-underline-offset: 3px;
        color: rgba(255, 255, 255, 0.9);
    }

    .cta-panel .cta-text-link:hover {
        background: transparent;
        color: #fff;
    }

    .cta-text-link--desktop {
        display: none !important;
    }

    /* —— 页脚 —— */
    .footer {
        padding: 40px 0 28px;
    }

    /* 手机始终预留底栏高度，避免显隐时页面跳动；底栏自身 fixed 不占文档流 */
    body {
        padding-bottom: env(safe-area-inset-bottom, 0px);
    }

    html {
        scroll-padding-bottom: 0;
    }

    .footer-main {
        gap: 24px;
    }

    .footer-slogan {
        display: none;
    }

    .footer-about-lead {
        font-size: 13px;
        line-height: 1.6;
    }

    .footer-creds li {
        padding: 8px 0;
    }

    .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
        gap: 6px;
        font-size: 12px;
        line-height: 1.55;
        padding-top: 8px;
    }

    .footer-bottom > span:not(.footer-sep) {
        display: none;
    }

    .footer-sep {
        display: none;
    }

    /* —— 弹层表格更易读 —— */
    .pc-table th,
    .pc-table td {
        padding: 9px 10px;
        font-size: 13px;
    }

    .pc-table th {
        font-size: 11px;
    }

    .price-modal-dialog {
        max-height: min(86vh, 720px);
    }

    .btn,
    .price-entry-btn,
    .footer-price-link,
    .cap-scene-tab {
        -webkit-tap-highlight-color: rgba(22, 119, 255, 0.18);
        touch-action: manipulation;
    }
}

@media (max-width: 380px) {
    .hero-brand-title {
        font-size: 30px;
    }
    .hero-title,
    .hero-title-value,
    .hero--marketing .hero-title,
    .hero--marketing .hero-title-value {
        font-size: 23px;
    }
    .hero-cta-login,
    .btn-login-cta {
        width: 100%;
    }
}

/* ===== Site inquiry form ===== */
.inquiry-form {
    padding: 20px 20px 18px;
    border-radius: 16px;
    border: 1px solid var(--border-light);
    background: color-mix(in srgb, var(--bg-3) 88%, var(--card));
}

:root:not([data-theme="light"]) .inquiry-form {
    background: rgba(255, 255, 255, 0.04);
    border-color: rgba(255, 255, 255, 0.12);
}

:root:not([data-theme="light"]) .inquiry-field input,
:root:not([data-theme="light"]) .inquiry-field select,
:root:not([data-theme="light"]) .inquiry-field textarea {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(255, 255, 255, 0.14);
    color: #f1f5f9;
}

:root:not([data-theme="light"]) .inquiry-field input::placeholder,
:root:not([data-theme="light"]) .inquiry-field textarea::placeholder {
    color: rgba(226, 232, 240, 0.5);
}

:root:not([data-theme="light"]) .inquiry-label {
    color: #f1f5f9;
}

.demo-flow-action {
    display: inline;
    margin: 0;
    padding: 0;
    border: 0;
    background: none;
    color: inherit;
    font: inherit;
    text-align: left;
    cursor: pointer;
}

.demo-flow-action strong {
    font-weight: 700;
}

.demo-flow-action:hover strong,
.demo-flow-action:focus-visible strong {
    color: var(--blue-light);
}

.inquiry-form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px 16px;
}

.inquiry-field {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.inquiry-field--full { grid-column: 1 / -1; }

.inquiry-label {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 6px;
    font-size: 13px;
    font-weight: 600;
    color: var(--text);
}

.inquiry-label em {
    color: #ff7875;
    font-style: normal;
}

.inquiry-hint {
    font-size: 11px;
    font-weight: 500;
    color: var(--text-3);
}

.inquiry-field input,
.inquiry-field select,
.inquiry-field textarea {
    width: 100%;
    border: 1px solid var(--border-light);
    border-radius: 12px;
    padding: 11px 13px;
    background: var(--bg);
    color: var(--text);
    font: inherit;
    line-height: 1.45;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.inquiry-field input::placeholder,
.inquiry-field textarea::placeholder {
    color: var(--text-3);
    opacity: 1;
}

.inquiry-field select {
    appearance: none;
    background-image: linear-gradient(45deg, transparent 50%, var(--text-3) 50%), linear-gradient(135deg, var(--text-3) 50%, transparent 50%);
    background-position: calc(100% - 18px) calc(50% - 2px), calc(100% - 12px) calc(50% - 2px);
    background-size: 6px 6px, 6px 6px;
    background-repeat: no-repeat;
    padding-right: 34px;
}

.inquiry-field select option {
    color: #0f172a;
    background: #fff;
}

.inquiry-field input:focus,
.inquiry-field select:focus,
.inquiry-field textarea:focus {
    outline: none;
    border-color: color-mix(in srgb, var(--blue) 55%, var(--border-light));
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--blue) 18%, transparent);
}

.inquiry-field textarea {
    resize: vertical;
    min-height: 104px;
    line-height: 1.55;
}

.inquiry-sms-row {
    display: flex;
    align-items: stretch;
    gap: 10px;
}

.inquiry-sms-row input {
    flex: 1;
    min-width: 0;
    height: 46px;
}

.inquiry-sms-btn {
    flex-shrink: 0;
    align-self: center;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    white-space: nowrap;
    min-width: 108px;
    height: 46px;
    padding: 0 14px;
    font-size: 14px;
    line-height: 1;
    border-color: var(--border-light);
    color: var(--text);
    box-sizing: border-box;
}

.inquiry-form-error {
    margin: 10px 0 0;
    color: #ff7875;
    font-size: 13px;
    line-height: 1.5;
}

.inquiry-submit {
    width: 100%;
    margin-top: 14px;
    min-height: 46px;
}

.contact-details-wechat {
    padding: 0;
    background: transparent;
    border: none;
}

.contact-details-wechat:hover {
    background: transparent;
    border: none;
}

:root:not([data-theme="light"]) .contact-details-wechat,
:root:not([data-theme="light"]) .contact-details-wechat:hover {
    background: transparent;
    border: none;
}

.contact-wechat-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    margin: 0;
    padding: 14px 16px;
    min-height: 52px;
    box-sizing: border-box;
    font: inherit;
    font-size: 16px;
    font-weight: 700;
    letter-spacing: 0.02em;
    line-height: 1.45;
    border-radius: 14px;
    background: rgba(7, 193, 96, 0.12);
    border: 1px solid rgba(7, 193, 96, 0.38);
    color: #07c160;
    box-shadow: none;
    cursor: pointer;
    transition: border-color 0.2s ease, background 0.2s ease, color 0.2s ease;
}

.contact-wechat-btn:hover,
.contact-wechat-btn:focus-visible {
    background: rgba(7, 193, 96, 0.2);
    border-color: rgba(7, 193, 96, 0.55);
    color: #06ad56;
}

[data-theme="light"] .contact-wechat-btn {
    background: rgba(7, 193, 96, 0.08);
    border-color: rgba(7, 193, 96, 0.32);
    color: #059669;
}

[data-theme="light"] .contact-wechat-btn:hover,
[data-theme="light"] .contact-wechat-btn:focus-visible {
    background: rgba(7, 193, 96, 0.14);
    border-color: rgba(7, 193, 96, 0.48);
    color: #047857;
}

/* 在线留言区：明亮卡片风（覆盖上方通用表单样式） */
.contact-section .contact-panel .inquiry-form {
    padding: 24px 22px 20px;
    border-radius: 18px;
    border: 1px solid rgba(22, 119, 255, 0.12);
    background: #ffffff;
    box-shadow: 0 12px 36px rgba(15, 23, 42, 0.06);
}

:root:not([data-theme="light"]) .contact-section .contact-panel .inquiry-form {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(255, 255, 255, 0.14);
    box-shadow: none;
}

.contact-section .contact-panel .inquiry-field input,
.contact-section .contact-panel .inquiry-field select,
.contact-section .contact-panel .inquiry-field textarea {
    background: #f8fbff;
    border-color: rgba(15, 23, 42, 0.1);
}

.contact-section .contact-panel .inquiry-field input:focus,
.contact-section .contact-panel .inquiry-field select:focus,
.contact-section .contact-panel .inquiry-field textarea:focus {
    border-color: rgba(22, 119, 255, 0.45);
    box-shadow: 0 0 0 3px rgba(22, 119, 255, 0.12);
}

:root:not([data-theme="light"]) .contact-section .contact-panel .inquiry-field input,
:root:not([data-theme="light"]) .contact-section .contact-panel .inquiry-field select,
:root:not([data-theme="light"]) .contact-section .contact-panel .inquiry-field textarea {
    background: rgba(255, 255, 255, 0.07);
    border-color: rgba(255, 255, 255, 0.16);
    color: #f1f5f9;
}

.contact-section .contact-panel .inquiry-sms-btn {
    background: #eef5ff;
    border-color: rgba(22, 119, 255, 0.2);
    color: var(--blue-dark);
    font-weight: 600;
}

.contact-section .contact-panel .inquiry-sms-btn:hover {
    background: #dbeafe;
    border-color: rgba(22, 119, 255, 0.35);
}

:root:not([data-theme="light"]) .contact-section .contact-panel .inquiry-sms-btn {
    background: rgba(22, 119, 255, 0.14);
    border-color: rgba(22, 119, 255, 0.28);
    color: #bfdbfe;
}

.contact-section .contact-panel .inquiry-submit {
    font-weight: 700;
    letter-spacing: 0.02em;
    box-shadow: 0 10px 28px rgba(22, 119, 255, 0.28);
}

.footer-flow-link {
    border: 0;
    padding: 0;
    background: none;
    color: inherit;
    font: inherit;
    cursor: pointer;
    text-align: left;
    text-decoration: none;
}

.footer-flow-link:hover { color: var(--blue-light); }

.inquiry-modal {
    position: fixed;
    inset: 0;
    z-index: 1200;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px 16px;
}

.inquiry-modal[hidden] { display: none !important; }

.inquiry-modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.55);
}

.inquiry-modal-dialog {
    position: relative;
    z-index: 1;
    width: min(420px, 100%);
    border-radius: 20px;
    border: 1px solid var(--border-light);
    background: var(--bg-2);
    padding: 28px 24px 24px;
    box-shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
}

.inquiry-modal-title {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text);
}

.inquiry-modal-desc {
    color: var(--text-2);
    line-height: 1.7;
    margin-bottom: 10px;
}

.inquiry-modal-desc--lead {
    white-space: nowrap;
    font-size: clamp(11px, 3.15vw, 15px);
    letter-spacing: -0.01em;
}

.inquiry-modal-desc a { color: var(--blue-light); }

.inquiry-modal-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 18px;
}

.inquiry-modal-close {
    position: absolute;
    top: 12px;
    right: 12px;
    border: 0;
    background: transparent;
    color: var(--text-3);
    cursor: pointer;
    padding: 6px;
}

.slide-captcha-root { margin-top: 8px; }

.slide-captcha-image {
    position: relative;
    width: 100%;
    aspect-ratio: 2 / 1;
    border-radius: 12px;
    overflow: hidden;
    background: rgba(255, 255, 255, 0.04);
}

.slide-captcha-bg {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.slide-captcha-piece {
    position: absolute;
    left: 0;
    top: 0;
    pointer-events: none;
    overflow: hidden;
}

.slide-captcha-piece img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
}

.slide-captcha-refresh {
    position: absolute;
    top: 8px;
    right: 8px;
    border: 0;
    border-radius: 8px;
    background: rgba(0, 0, 0, 0.45);
    color: #fff;
    width: 32px;
    height: 32px;
    cursor: pointer;
}

.slide-captcha-hint {
    margin: 10px 0 8px;
    font-size: 13px;
    color: var(--text-2);
}

.slide-captcha-hint--err { color: #ff7875; }

.slide-captcha-track-wrap {
    position: relative;
    height: 42px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--border);
    overflow: hidden;
}

.slide-captcha-track {
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    background: rgba(22, 119, 255, 0.25);
}

.slide-captcha-btn {
    position: absolute;
    left: 0;
    top: 3px;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: #1677ff;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: grab;
    touch-action: none;
}

html.inquiry-modal-open { overflow: hidden; }

@media (max-width: 768px) {
    .inquiry-form-grid { grid-template-columns: 1fr; gap: 12px; }

    .inquiry-sms-btn {
        min-width: 96px;
        padding: 0 10px;
        font-size: 13px;
    }
}

/* =============================================================================
   === KEEP: hero-demo-blend-20260825 ===
   仅 Hero ↔ 第二屏（#demo）顺滑咬合；玻璃透明度阶梯已撤销
   ============================================================================= */

.site-premium #home.hero {
    margin-bottom: -88px;
    padding-bottom: 120px;
    z-index: 2;
}

.site-premium #home.hero .scroll-indicator {
    bottom: 72px;
    z-index: 3;
    opacity: 0.55;
}

.site-premium #demo.demo-section--stage {
    position: relative;
    z-index: 1;
    padding-top: 108px;
    margin-top: 0;
    background:
        radial-gradient(ellipse 90% 70% at 0% 8%, rgba(22, 119, 255, 0.32), transparent 62%),
        radial-gradient(ellipse 80% 60% at 18% 30%, rgba(14, 165, 233, 0.28), transparent 58%),
        radial-gradient(ellipse 75% 55% at 92% 22%, rgba(245, 158, 11, 0.26), transparent 55%),
        radial-gradient(ellipse 70% 55% at 78% 95%, rgba(20, 184, 166, 0.24), transparent 58%),
        linear-gradient(180deg, var(--bg) 0%, var(--bg) 100%);
}

/* 第二屏顶：缩短淡入，避免盖住彩色洗色（与 Hero 仍重叠） */
.site-premium #demo.demo-section--stage::before {
    height: min(18vh, 140px);
    background: linear-gradient(
        180deg,
        color-mix(in srgb, var(--bg) 75%, transparent) 0%,
        color-mix(in srgb, var(--bg) 35%, transparent) 45%,
        transparent 100%
    );
}

/* 深色主题：视频遮罩底部同样融进 --bg，避免硬切色带 */
.site-premium #home.hero .hero-bg-video-shade::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: min(42vh, 300px);
    pointer-events: none;
    background: linear-gradient(
        180deg,
        transparent 0%,
        color-mix(in srgb, var(--bg) 25%, transparent) 48%,
        color-mix(in srgb, var(--bg) 70%, transparent) 78%,
        var(--bg) 100%
    );
}

@media (max-width: 1100px) {
    .site-premium #home.hero {
        margin-bottom: -56px;
        padding-bottom: 88px;
    }
    .site-premium #demo.demo-section--stage {
        padding-top: 80px;
    }
}

/* === END KEEP: hero-demo-blend-20260825 === */

/* =============================================================================
   === REVERT START: section-glass-color-20260825 ===
   第二屏起：可见级半透明 + 彩色洗色
   撤销：删除本整块即可
   ============================================================================= */

/* 缘部多档淡入 --bg：相邻板块共用同一桥色，交接更顺（中间彩洗仍可见） */
.site-premium #demo.demo-section--stage::before,
.site-premium .capabilities-section::before,
.site-premium .zhijian-section::before,
.site-premium .promoter-section::before,
.site-premium .contact-section::before {
    height: min(30vh, 240px);
    background: linear-gradient(
        180deg,
        var(--bg) 0%,
        color-mix(in srgb, var(--bg) 82%, transparent) 22%,
        color-mix(in srgb, var(--bg) 48%, transparent) 48%,
        color-mix(in srgb, var(--bg) 18%, transparent) 72%,
        transparent 100%
    );
}

.site-premium #demo.demo-section--stage::after,
.site-premium .capabilities-section::after,
.site-premium .zhijian-section::after,
.site-premium .promoter-section::after,
.site-premium .contact-section::after {
    height: min(30vh, 240px);
    background: linear-gradient(
        0deg,
        var(--bg) 0%,
        color-mix(in srgb, var(--bg) 82%, transparent) 22%,
        color-mix(in srgb, var(--bg) 48%, transparent) 48%,
        color-mix(in srgb, var(--bg) 18%, transparent) 72%,
        transparent 100%
    );
}

/* —— #demo：强彩洗（覆盖 KEEP 块同选择器） —— */
.site-premium #demo.demo-section--stage {
    background:
        radial-gradient(ellipse 90% 70% at 0% 8%, rgba(22, 119, 255, 0.32), transparent 62%),
        radial-gradient(ellipse 80% 60% at 18% 30%, rgba(14, 165, 233, 0.28), transparent 58%),
        radial-gradient(ellipse 75% 55% at 92% 22%, rgba(245, 158, 11, 0.26), transparent 55%),
        radial-gradient(ellipse 70% 55% at 78% 95%, rgba(20, 184, 166, 0.24), transparent 58%),
        linear-gradient(180deg, var(--bg) 0%, var(--bg) 100%);
}

.site-premium #demo .demo-pick-card {
    background:
        linear-gradient(
            145deg,
            color-mix(in srgb, var(--pick-tone) 28%, rgba(255, 255, 255, 0.35)) 0%,
            rgba(255, 255, 255, 0.55) 55%,
            rgba(255, 255, 255, 0.72) 100%
        );
    backdrop-filter: blur(16px) saturate(1.25);
    -webkit-backdrop-filter: blur(16px) saturate(1.25);
    border: 1px solid color-mix(in srgb, var(--pick-tone) 45%, rgba(255, 255, 255, 0.5));
    box-shadow:
        inset 4px 0 0 var(--pick-tone),
        0 16px 40px color-mix(in srgb, var(--pick-tone) 22%, transparent),
        inset 0 1px 0 rgba(255, 255, 255, 0.7);
}

[data-theme="dark"] .site-premium #demo .demo-pick-card,
:root:not([data-theme="light"]) .site-premium #demo .demo-pick-card {
    background:
        linear-gradient(
            145deg,
            color-mix(in srgb, var(--pick-tone) 32%, rgba(255, 255, 255, 0.06)) 0%,
            rgba(15, 23, 42, 0.45) 100%
        );
    border-color: color-mix(in srgb, var(--pick-tone) 50%, rgba(255, 255, 255, 0.15));
    box-shadow:
        inset 4px 0 0 var(--pick-tone),
        0 16px 40px rgba(0, 0, 0, 0.35),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

[data-theme="light"] .site-premium #demo .demo-showcase-shell.demo-stage-shell,
[data-theme="light"] .site-premium #demo .demo-stage-shell {
    background: rgba(255, 255, 255, 0.42);
    border: 1px solid rgba(22, 119, 255, 0.2);
    backdrop-filter: blur(14px) saturate(1.15);
    -webkit-backdrop-filter: blur(14px) saturate(1.15);
    box-shadow:
        0 28px 70px rgba(22, 119, 255, 0.14),
        inset 0 1px 0 rgba(255, 255, 255, 0.75);
}

:root:not([data-theme="light"]) .site-premium #demo .demo-showcase-shell.demo-stage-shell,
:root:not([data-theme="light"]) .site-premium #demo .demo-stage-shell {
    background: rgba(15, 23, 42, 0.38);
    border: 1px solid rgba(96, 165, 250, 0.28);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    box-shadow: 0 28px 70px rgba(0, 0, 0, 0.4);
}

/* —— 能力区 —— */
.site-premium .capabilities-section {
    background:
        radial-gradient(ellipse 95% 72% at -5% 0%, rgba(22, 119, 255, 0.3), transparent 60%),
        radial-gradient(ellipse 80% 60% at 105% 5%, rgba(14, 165, 233, 0.26), transparent 55%),
        radial-gradient(ellipse 70% 55% at 90% 100%, rgba(244, 63, 94, 0.18), transparent 55%),
        radial-gradient(ellipse 55% 45% at 35% 55%, rgba(20, 184, 166, 0.16), transparent 60%),
        var(--bg);
}

.site-premium .capabilities-section .cap-card {
    background: linear-gradient(
        155deg,
        rgba(255, 255, 255, 0.38) 0%,
        rgba(255, 255, 255, 0.72) 100%
    );
    backdrop-filter: blur(14px) saturate(1.2);
    -webkit-backdrop-filter: blur(14px) saturate(1.2);
    border: 1px solid rgba(22, 119, 255, 0.22);
    box-shadow:
        0 14px 36px rgba(22, 119, 255, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.75);
}

:root:not([data-theme="light"]) .site-premium .capabilities-section .cap-card {
    background: linear-gradient(
        155deg,
        rgba(255, 255, 255, 0.1) 0%,
        rgba(15, 23, 42, 0.55) 100%
    );
    border-color: rgba(96, 165, 250, 0.25);
}

.site-premium .capabilities-section .cap-featured {
    background: linear-gradient(
        150deg,
        rgba(37, 99, 235, 0.28) 0%,
        rgba(255, 255, 255, 0.7) 55%,
        rgba(255, 255, 255, 0.85) 100%
    );
    border-color: rgba(37, 99, 235, 0.45);
    box-shadow:
        0 18px 44px rgba(37, 99, 235, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.8);
}

:root:not([data-theme="light"]) .site-premium .capabilities-section .cap-featured {
    background: linear-gradient(
        150deg,
        rgba(37, 99, 235, 0.35) 0%,
        rgba(15, 23, 42, 0.65) 100%
    );
}

/* —— 智剪 —— */
.site-premium .zhijian-section {
    background:
        radial-gradient(ellipse 90% 65% at 8% 0%, rgba(14, 165, 233, 0.3), transparent 58%),
        radial-gradient(ellipse 70% 55% at 95% 8%, rgba(245, 158, 11, 0.28), transparent 55%),
        radial-gradient(ellipse 75% 55% at 90% 100%, rgba(20, 184, 166, 0.24), transparent 55%),
        radial-gradient(ellipse 55% 45% at 15% 90%, rgba(22, 119, 255, 0.2), transparent 58%),
        var(--bg);
}

.site-premium .zhijian-section .zhijian-card {
    background: linear-gradient(
        155deg,
        color-mix(in srgb, var(--zj-tone) 32%, rgba(255, 255, 255, 0.35)) 0%,
        rgba(255, 255, 255, 0.7) 100%
    );
    backdrop-filter: blur(14px) saturate(1.2);
    -webkit-backdrop-filter: blur(14px) saturate(1.2);
    border: 1px solid color-mix(in srgb, var(--zj-tone) 40%, rgba(255, 255, 255, 0.35));
    box-shadow:
        inset 4px 0 0 var(--zj-tone),
        0 12px 32px color-mix(in srgb, var(--zj-tone) 20%, transparent),
        inset 0 1px 0 rgba(255, 255, 255, 0.7);
}

:root:not([data-theme="light"]) .site-premium .zhijian-section .zhijian-card {
    background: linear-gradient(
        155deg,
        color-mix(in srgb, var(--zj-tone) 28%, rgba(255, 255, 255, 0.05)) 0%,
        rgba(15, 23, 42, 0.5) 100%
    );
    box-shadow:
        inset 4px 0 0 var(--zj-tone),
        0 12px 32px rgba(0, 0, 0, 0.25),
        inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

/* —— 合作（slim 卡） —— */
.site-premium .promoter-section {
    background:
        radial-gradient(ellipse 90% 65% at 0% 10%, rgba(22, 119, 255, 0.3), transparent 58%),
        radial-gradient(ellipse 70% 55% at 100% 0%, rgba(14, 165, 233, 0.22), transparent 55%),
        radial-gradient(ellipse 65% 50% at 95% 85%, rgba(20, 184, 166, 0.18), transparent 55%),
        var(--bg);
}

.site-premium .promoter-section .promoter-slim-card {
    background: linear-gradient(
        155deg,
        rgba(255, 255, 255, 0.4) 0%,
        rgba(255, 255, 255, 0.78) 100%
    );
    backdrop-filter: blur(14px) saturate(1.15);
    -webkit-backdrop-filter: blur(14px) saturate(1.15);
    border: 1px solid rgba(22, 119, 255, 0.24);
    box-shadow:
        0 16px 40px rgba(22, 119, 255, 0.12),
        inset 0 1px 0 rgba(255, 255, 255, 0.75);
}

.site-premium .promoter-section .promoter-slim-card--partner {
    border-color: rgba(14, 165, 233, 0.35);
    box-shadow:
        inset 4px 0 0 #0ea5e9,
        0 16px 40px rgba(14, 165, 233, 0.14),
        inset 0 1px 0 rgba(255, 255, 255, 0.75);
    background: linear-gradient(
        155deg,
        rgba(14, 165, 233, 0.22) 0%,
        rgba(255, 255, 255, 0.7) 55%,
        rgba(255, 255, 255, 0.82) 100%
    );
}

.site-premium .promoter-section .promoter-slim-card--promoter {
    border-color: rgba(245, 158, 11, 0.35);
    box-shadow:
        inset 4px 0 0 #f59e0b,
        0 16px 40px rgba(245, 158, 11, 0.14),
        inset 0 1px 0 rgba(255, 255, 255, 0.75);
    background: linear-gradient(
        155deg,
        rgba(245, 158, 11, 0.22) 0%,
        rgba(255, 255, 255, 0.7) 55%,
        rgba(255, 255, 255, 0.82) 100%
    );
}

:root:not([data-theme="light"]) .site-premium .promoter-section .promoter-slim-card {
    background: linear-gradient(
        155deg,
        rgba(255, 255, 255, 0.1) 0%,
        rgba(15, 23, 42, 0.55) 100%
    );
}

.site-premium .promoter-section .promoter-stat {
    background: rgba(255, 255, 255, 0.55);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-color: rgba(22, 119, 255, 0.2);
}

.site-premium .contact-section {
    background:
        radial-gradient(ellipse 80% 60% at 5% 15%, rgba(22, 119, 255, 0.18), transparent 58%),
        radial-gradient(ellipse 65% 50% at 95% 85%, rgba(14, 165, 233, 0.14), transparent 55%),
        var(--bg);
}

@media (prefers-reduced-motion: reduce) {
    .site-premium #demo .demo-pick-card,
    .site-premium .capabilities-section .cap-card,
    .site-premium .zhijian-section .zhijian-card,
    .site-premium .promoter-section .promoter-slim-card {
        backdrop-filter: none;
        -webkit-backdrop-filter: none;
    }
}

/* === REVERT END: section-glass-color-20260825 === */

/* =============================================================================
   === KEEP: section-seam-blend-20260825 ===
   相邻板块负间距重叠 + 加厚缘部咬合，减少彩洗硬切
   ============================================================================= */

.site-premium #demo.demo-section--stage,
.site-premium #capabilities.capabilities-section,
.site-premium #zhijian.zhijian-section,
.site-premium #partners.promoter-section,
.site-premium #contact.contact-section {
    margin-bottom: -80px;
    padding-bottom: 150px;
    padding-top: 120px;
}

/* demo 顶仍要给 Hero 叠层留空，覆盖上面统一 padding-top */
.site-premium #demo.demo-section--stage {
    padding-top: 108px;
}

.site-premium #contact.contact-section {
    margin-bottom: 0;
    padding-bottom: 120px;
}

/* 各板块背景：上下缘先收成 --bg，中间才放彩洗，交接不再撞色 */
.site-premium #demo.demo-section--stage {
    background:
        linear-gradient(180deg, var(--bg) 0%, transparent 14%),
        linear-gradient(0deg, var(--bg) 0%, transparent 16%),
        radial-gradient(ellipse 88% 58% at 8% 42%, rgba(22, 119, 255, 0.3), transparent 60%),
        radial-gradient(ellipse 72% 50% at 22% 48%, rgba(14, 165, 233, 0.24), transparent 56%),
        radial-gradient(ellipse 70% 48% at 88% 40%, rgba(245, 158, 11, 0.22), transparent 54%),
        radial-gradient(ellipse 65% 48% at 72% 62%, rgba(20, 184, 166, 0.2), transparent 56%),
        var(--bg);
}

.site-premium #capabilities.capabilities-section {
    background:
        linear-gradient(180deg, var(--bg) 0%, transparent 16%),
        linear-gradient(0deg, var(--bg) 0%, transparent 16%),
        radial-gradient(ellipse 90% 58% at 5% 45%, rgba(22, 119, 255, 0.28), transparent 58%),
        radial-gradient(ellipse 75% 52% at 95% 42%, rgba(14, 165, 233, 0.22), transparent 54%),
        radial-gradient(ellipse 65% 48% at 80% 68%, rgba(244, 63, 94, 0.14), transparent 55%),
        radial-gradient(ellipse 50% 42% at 40% 55%, rgba(20, 184, 166, 0.14), transparent 58%),
        var(--bg);
}

.site-premium #zhijian.zhijian-section {
    background:
        linear-gradient(180deg, var(--bg) 0%, transparent 16%),
        linear-gradient(0deg, var(--bg) 0%, transparent 16%),
        radial-gradient(ellipse 85% 55% at 12% 40%, rgba(14, 165, 233, 0.26), transparent 56%),
        radial-gradient(ellipse 65% 48% at 92% 38%, rgba(245, 158, 11, 0.24), transparent 54%),
        radial-gradient(ellipse 70% 50% at 85% 68%, rgba(20, 184, 166, 0.2), transparent 55%),
        radial-gradient(ellipse 50% 42% at 18% 70%, rgba(22, 119, 255, 0.16), transparent 56%),
        var(--bg);
}

.site-premium #partners.promoter-section {
    background:
        linear-gradient(180deg, var(--bg) 0%, transparent 16%),
        linear-gradient(0deg, var(--bg) 0%, transparent 16%),
        radial-gradient(ellipse 85% 55% at 5% 42%, rgba(22, 119, 255, 0.28), transparent 56%),
        radial-gradient(ellipse 65% 48% at 95% 38%, rgba(14, 165, 233, 0.18), transparent 54%),
        radial-gradient(ellipse 60% 46% at 90% 70%, rgba(20, 184, 166, 0.14), transparent 55%),
        var(--bg);
}

.site-premium #contact.contact-section {
    background:
        linear-gradient(180deg, var(--bg) 0%, transparent 18%),
        linear-gradient(0deg, var(--bg) 0%, transparent 14%),
        radial-gradient(ellipse 75% 52% at 8% 45%, rgba(22, 119, 255, 0.14), transparent 58%),
        radial-gradient(ellipse 60% 46% at 92% 62%, rgba(14, 165, 233, 0.1), transparent 55%),
        var(--bg);
}

@media (max-width: 1100px) {
    .site-premium #demo.demo-section--stage,
    .site-premium #capabilities.capabilities-section,
    .site-premium #zhijian.zhijian-section,
    .site-premium #partners.promoter-section,
    .site-premium #contact.contact-section {
        margin-bottom: -48px;
        padding-bottom: 100px;
        padding-top: 80px;
    }
    .site-premium #demo.demo-section--stage {
        padding-top: 80px;
    }
    .site-premium #contact.contact-section {
        margin-bottom: 0;
        padding-bottom: 88px;
    }
}

/* === END KEEP: section-seam-blend-20260825 === */