/* Design Note: 维持未来影棚主义质感，但需优先服务目录清晰、词频克制与移动端浏览。 */
:root {
    --bg: #071218;
    --bg-soft: #0d1d24;
    --panel: rgba(8, 24, 31, 0.82);
    --text: #edf4f5;
    --muted: #a0b3b9;
    --warm: #f08f41;
    --cool: #15d1c5;
    --line: rgba(103, 146, 156, 0.28);
    --shadow: 0 20px 45px rgba(0, 0, 0, 0.26);
    --radius: 22px;
    --max: 1240px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    color: var(--text);
    background: radial-gradient(circle at top, rgba(29, 77, 84, 0.26), transparent 32%), linear-gradient(180deg, #071218 0%, #09141a 22%, #081117 100%);
    font-family: 'Noto Sans SC', sans-serif;
    line-height: 1.7;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button, input { font: inherit; }
.shell { width: min(calc(100% - 32px), var(--max)); margin: 0 auto; }
.site-header { position: sticky; top: 0; z-index: 20; backdrop-filter: blur(18px); background: rgba(4, 12, 16, 0.82); border-bottom: 1px solid rgba(255,255,255,0.06); }
.header-inner { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 20px; min-height: 82px; }
.brand-lockup { display: flex; align-items: center; gap: 14px; }
.brand-lockup strong { display: block; font-size: 1.12rem; letter-spacing: 0.04em; }
.brand-lockup span { display: block; color: var(--muted); font-size: 0.82rem; }
.site-nav { display: flex; justify-content: center; flex-wrap: wrap; gap: 10px; }
.nav-link { position: relative; padding: 10px 14px; color: #dbe7ea; font-size: 0.95rem; }
.nav-link::after { content: ''; position: absolute; left: 14px; right: 14px; bottom: 6px; height: 2px; background: linear-gradient(90deg, transparent, var(--cool), transparent); transform: scaleX(0); transition: transform 0.25s ease; }
.nav-link:hover::after, .nav-link.is-active::after { transform: scaleX(1); }
.mini-domain { padding: 10px 14px; border: 1px solid var(--line); border-radius: 999px; color: #9af3ee; font-size: 0.9rem; }
.search-strip { border-top: 1px solid rgba(255,255,255,0.04); background: linear-gradient(90deg, rgba(240,143,65,0.08), rgba(21,209,197,0.08)); }
.search-strip-inner { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 18px; padding: 14px 0; }
.search-strip p { margin: 0; color: #c7d6da; font-size: 0.94rem; }
.fake-search { display: flex; min-width: min(100%, 420px); border: 1px solid rgba(255,255,255,0.08); border-radius: 999px; overflow: hidden; background: rgba(255,255,255,0.04); }
.fake-search input { width: 320px; border: 0; background: transparent; color: var(--text); padding: 14px 18px; }
.fake-search button { border: 0; color: #06141a; background: linear-gradient(135deg, var(--warm), #f5b063); padding: 0 20px; font-weight: 700; }
.hero-section { padding: 44px 0 22px; }
.hero-grid, .two-col-stage, .ai-stage, .contact-share-grid, .faq-review-grid, .page-hero, .simple-columns, .stage-cards, .footer-grid { display: grid; gap: 22px; }
.hero-grid { grid-template-columns: 1.02fr 1.18fr; }
.two-col-stage, .ai-stage, .contact-share-grid, .faq-review-grid { grid-template-columns: 1fr 1fr; }
.simple-columns, .stage-cards { grid-template-columns: repeat(3, minmax(0,1fr)); }
.hero-copy, .frame-panel, .content-stage, .contact-card, .share-card, .faq-panel, .review-panel, .keyword-cloud, .json-panel, .page-hero > div, .simple-columns article, .stage-cards article {
    position: relative; overflow: hidden; padding: 28px; background: linear-gradient(180deg, rgba(8,24,31,0.82), rgba(5,16,20,0.9)); border: 1px solid rgba(255,255,255,0.06); border-radius: var(--radius); box-shadow: var(--shadow);
}
.hero-copy::before, .frame-panel::before, .json-panel::before { content: ''; position: absolute; inset: 0; background: linear-gradient(130deg, rgba(21,209,197,0.12), transparent 28%, transparent 75%, rgba(240,143,65,0.12)); pointer-events: none; }
.hero-copy > *, .frame-panel > *, .json-panel > * { position: relative; z-index: 1; }
.eyebrow, .section-kicker { display: inline-flex; align-items: center; gap: 10px; padding: 7px 12px; border-radius: 999px; background: rgba(255,255,255,0.05); color: #9af3ee; letter-spacing: 0.08em; text-transform: uppercase; font-size: 0.74rem; }
.hero-copy h1, .page-hero h1, .section-header h2, .section-intro h2, .faq-panel h2, .review-panel h2, .contact-card h2, .share-card h2, .keyword-cloud h2 { margin: 18px 0 14px; line-height: 1.2; font-family: 'Noto Serif SC', serif; font-size: clamp(2rem, 4vw, 3.4rem); }
.hero-copy p, .page-hero p, .section-header p, .section-intro p, .content-stage p, .simple-columns p, .stage-cards p, .contact-card p, .share-card p, .keyword-cloud p { margin: 0; color: #d2dfe2; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 26px; }
.button { display: inline-flex; align-items: center; justify-content: center; padding: 14px 22px; border-radius: 999px; transition: transform 0.25s ease; }
.button:hover { transform: translateY(-2px); }
.button.primary { color: #051216; background: linear-gradient(135deg, #f19a54, #ffd093); }
.button.secondary { border: 1px solid rgba(21,209,197,0.35); color: #9af3ee; background: rgba(255,255,255,0.03); }
.hero-metrics { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 14px; margin: 30px 0 0; padding: 0; list-style: none; }
.hero-metrics li { padding: 16px 14px; border-radius: 18px; background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.05); }
.hero-metrics strong { display: block; font-size: 1.36rem; color: #fff; }
.hero-metrics span { color: var(--muted); font-size: 0.88rem; }
.hero-visual img, .page-hero img, .visual-stage img, .ai-visual img, .contact-media img { width: 100%; height: 100%; object-fit: cover; }
.frame-caption { position: absolute; left: 20px; right: 20px; bottom: 20px; padding: 14px 16px; border-radius: 18px; backdrop-filter: blur(12px); background: rgba(4, 16, 20, 0.7); border: 1px solid rgba(255,255,255,0.08); }
.frame-caption span { display: block; color: #9af3ee; font-size: 0.82rem; }
.breadcrumb-row { color: #8fa6ad; font-size: 0.92rem; padding: 16px 0 8px; }
.section-intro, .section-header { display: grid; gap: 16px; align-items: end; }
.section-split, .section-header { grid-template-columns: 1fr 0.92fr; }
.video-gallery-section, .two-col-stage, .ai-stage, .faq-review-grid, .contact-share-grid, .keyword-cloud, .dark-band, .subpage-main { padding-top: 26px; }
.video-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 18px; margin-top: 18px; }
.video-card { border-radius: 22px; overflow: hidden; border: 1px solid rgba(255,255,255,0.06); background: linear-gradient(180deg, rgba(11,25,31,0.92), rgba(7,18,22,0.94)); box-shadow: 0 16px 28px rgba(0,0,0,0.18); transition: transform 0.28s ease, border-color 0.28s ease; }
.video-card:hover, .video-card:focus-visible { transform: translateY(-6px); border-color: rgba(21,209,197,0.34); outline: none; }
.video-thumb { position: relative; aspect-ratio: 16/10; overflow: hidden; }
.video-thumb::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 30%, rgba(0,0,0,0.68)); }
.video-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.35s ease; }
.video-card:hover .video-thumb img { transform: scale(1.06); }
.video-label, .video-time, .play-badge { position: absolute; z-index: 2; border-radius: 999px; font-size: 0.78rem; }
.video-label { top: 14px; left: 14px; padding: 7px 10px; background: rgba(5,17,22,0.75); border: 1px solid rgba(255,255,255,0.08); }
.video-time { right: 14px; bottom: 14px; padding: 7px 10px; background: rgba(5,17,22,0.84); }
.play-badge { left: 50%; top: 50%; transform: translate(-50%, -50%) scale(0.92); padding: 12px 18px; background: linear-gradient(135deg, rgba(240,143,65,0.9), rgba(21,209,197,0.72)); color: #041014; font-weight: 800; opacity: 0; transition: opacity 0.22s ease, transform 0.22s ease; }
.video-card:hover .play-badge, .video-card.is-playing .play-badge, .video-card:focus-visible .play-badge { opacity: 1; transform: translate(-50%, -50%) scale(1); }
.video-body { padding: 18px 18px 20px; }
.video-body h3 { margin: 0 0 10px; font-size: 1.08rem; line-height: 1.4; }
.video-body p { margin: 0 0 14px; color: var(--muted); font-size: 0.94rem; }
.video-stats, .tag-row, .card-tags, .share-grid { display: flex; flex-wrap: wrap; gap: 10px; }
.video-stats { color: #9af3ee; font-size: 0.84rem; }
.tag-row span, .card-tags span, .share-button, .logo-pill { padding: 7px 11px; border-radius: 999px; background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.07); color: #dbebee; font-size: 0.82rem; }
.bullet-list { margin: 18px 0 0; padding-left: 18px; color: #d7e5e8; }
.dark-band { margin-top: 34px; padding: 34px 0; background: linear-gradient(180deg, rgba(6,17,22,0.52), rgba(6,17,22,0.18)); border-top: 1px solid rgba(255,255,255,0.05); border-bottom: 1px solid rgba(255,255,255,0.05); }
.json-section-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 20px; margin-top: 18px; }
.json-panel.wide { grid-column: span 2; }
.render-grid, .logo-wall, .steps-grid, .contact-grid, .faq-list, .review-list { display: grid; gap: 14px; }
.render-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
.render-card, .expert-card, .contact-item, .review-item, .step-item { padding: 18px; border-radius: 18px; border: 1px solid rgba(255,255,255,0.05); background: rgba(255,255,255,0.03); }
.render-card h4, .expert-card h4, .review-item h4, .step-item h4 { margin: 0 0 10px; font-size: 1rem; }
.render-card p, .expert-card p, .review-item p, .step-item p, .contact-item p { margin: 0 0 10px; color: var(--muted); font-size: 0.92rem; }
.logo-wall { grid-template-columns: repeat(6, minmax(0,1fr)); }
.logo-pill { display: flex; align-items: center; justify-content: center; min-height: 74px; font-weight: 700; text-align: center; }
.steps-grid { grid-template-columns: repeat(4, minmax(0,1fr)); }
.faq-item { border-radius: 18px; overflow: hidden; border: 1px solid rgba(255,255,255,0.07); background: rgba(255,255,255,0.03); }
.faq-item summary { list-style: none; cursor: pointer; padding: 18px; font-weight: 700; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item p { margin: 0; padding: 0 18px 18px; color: var(--muted); }
.contact-media { margin-top: 16px; border-radius: 18px; overflow: hidden; border: 1px solid rgba(255,255,255,0.06); }
.share-button { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; cursor: pointer; transition: transform 0.22s ease; }
.share-button:hover { transform: translateY(-2px); }
.mini-note { margin-top: 16px; color: var(--muted); font-size: 0.88rem; }
.page-hero { grid-template-columns: 0.92fr 1.08fr; align-items: stretch; padding-top: 34px; }
.page-hero img, .page-hero > div { min-height: 320px; border-radius: 24px; overflow: hidden; background: linear-gradient(180deg, rgba(8,24,31,0.82), rgba(5,16,20,0.9)); border: 1px solid rgba(255,255,255,0.06); }
.site-footer { margin-top: 42px; padding-top: 32px; border-top: 1px solid rgba(255,255,255,0.05); background: rgba(4, 10, 14, 0.74); }
.footer-grid { grid-template-columns: 1.1fr 0.95fr 1fr; }
.footer-brand { display: flex; gap: 16px; align-items: flex-start; }
.footer-brand h2, .site-footer h3 { margin: 0 0 12px; font-family: 'Noto Serif SC', serif; }
.footer-brand p, .site-footer p { margin: 0; color: var(--muted); }
.footer-contact-list { display: grid; gap: 10px; margin-top: 18px; color: #dbe7ea; }
.qr-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 14px; }
.qr-grid figure { margin: 0; padding: 14px; border-radius: 18px; border: 1px solid rgba(255,255,255,0.06); background: rgba(255,255,255,0.03); text-align: center; }
.qr-grid figcaption { margin-top: 10px; color: var(--muted); font-size: 0.86rem; }
.mcp-panel { border-radius: 20px; border: 1px solid rgba(255,255,255,0.06); background: rgba(255,255,255,0.03); padding: 16px; }
.mcp-tab { border: 1px solid rgba(255,255,255,0.08); background: rgba(255,255,255,0.03); color: var(--text); border-radius: 999px; padding: 8px 12px; margin: 0 8px 10px 0; }
.mcp-tab.is-active { background: linear-gradient(135deg, rgba(240,143,65,0.26), rgba(21,209,197,0.2)); }
.footer-bottom { display: flex; justify-content: space-between; gap: 16px; border-top: 1px solid rgba(255,255,255,0.05); padding: 18px 0 24px; margin-top: 28px; color: #b9ccd0; font-size: 0.92rem; }
.notice { position: fixed; right: 18px; bottom: 18px; z-index: 30; max-width: min(90vw, 320px); padding: 14px 16px; border-radius: 16px; color: #081117; background: linear-gradient(135deg, #ffd39d, #84f1ea); box-shadow: 0 14px 24px rgba(0,0,0,0.22); }
@media (max-width: 1100px) {
  .hero-grid, .two-col-stage, .ai-stage, .contact-share-grid, .faq-review-grid, .section-split, .page-hero, .footer-grid, .search-strip-inner { grid-template-columns: 1fr; }
  .hero-metrics, .simple-columns, .stage-cards, .steps-grid, .logo-wall, .json-section-grid, .render-grid, .video-grid, .share-grid, .qr-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .json-panel.wide { grid-column: auto; }
  .header-inner { grid-template-columns: 1fr; padding: 18px 0; }
  .site-nav { justify-content: flex-start; }
}
@media (max-width: 720px) {
  .shell { width: min(calc(100% - 22px), var(--max)); }
  .hero-copy, .frame-panel, .content-stage, .contact-card, .share-card, .faq-panel, .review-panel, .keyword-cloud, .json-panel, .page-hero > div, .simple-columns article, .stage-cards article { padding: 22px; }
  .hero-copy h1, .page-hero h1, .section-header h2, .section-intro h2, .faq-panel h2, .review-panel h2, .contact-card h2, .share-card h2, .keyword-cloud h2 { font-size: 1.76rem; }
  .hero-metrics, .video-grid, .simple-columns, .stage-cards, .steps-grid, .logo-wall, .json-section-grid, .render-grid, .share-grid, .qr-grid { grid-template-columns: 1fr; }
  .fake-search { min-width: 100%; }
  .fake-search input { width: 100%; }
  .footer-bottom { flex-direction: column; }
}