/* 麻豆传媒设计哲学：机械歌剧式赛道叙事；深石墨底、暖橙灯带、冷蓝高光、切角结构、纪录片速度感。 */
:root {
  --bg: #090d12;
  --panel: #121923;
  --panel-2: #0f141d;
  --soft: #93a4b8;
  --line: rgba(255,255,255,0.08);
  --white: #f4f7fb;
  --orange: #ff7a1a;
  --orange-2: #ff9e41;
  --blue: #5fcfff;
  --green: #6ae2af;
  --shadow: 0 18px 50px rgba(0,0,0,0.32);
  --radius: 24px;
  --max: 1280px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: 'Microsoft YaHei', 'PingFang SC', 'Noto Sans SC', sans-serif; background: radial-gradient(circle at top right, rgba(95,207,255,0.12), transparent 28%), linear-gradient(180deg, #070b10, #0c1118 40%, #0a0f16 100%); color: var(--white); line-height: 1.7; }
img { max-width: 100%; display: block; border: 0; }
a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
.container { width: min(var(--max), calc(100% - 32px)); margin: 0 auto; }
.noise-shell { position: absolute; width: 0; height: 0; overflow: hidden; opacity: 0; pointer-events: none; }
.site-header { position: sticky; top: 0; z-index: 20; backdrop-filter: blur(16px); background: rgba(6,10,14,0.84); border-bottom: 1px solid var(--line); }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 18px 0 14px; }
.brand-lockup { display: flex; align-items: center; gap: 14px; min-width: 0; }
.brand-lockup img { width: 54px; height: 54px; border-radius: 16px; background: linear-gradient(135deg, rgba(255,122,26,0.22), rgba(95,207,255,0.12)); padding: 8px; box-shadow: var(--shadow); }
.brand-lockup strong { display: block; font-size: 1.22rem; letter-spacing: .08em; }
.brand-lockup span { display: block; color: var(--soft); font-size: .92rem; }
.main-nav { display: flex; flex-wrap: wrap; gap: 10px; justify-content: flex-end; }
.main-nav a { padding: 10px 14px; border: 1px solid transparent; color: #c8d3df; border-radius: 999px; transition: .25s ease; }
.main-nav a.active, .main-nav a:hover { color: var(--white); border-color: rgba(255,122,26,.38); background: rgba(255,122,26,.1); }
.header-search-wrap { padding-bottom: 18px; }
.fake-search { display: flex; gap: 10px; background: linear-gradient(135deg, rgba(255,255,255,.04), rgba(255,255,255,.02)); border: 1px solid var(--line); border-radius: 999px; padding: 10px; box-shadow: inset 0 0 0 1px rgba(95,207,255,.05); }
.fake-search input { flex: 1; background: transparent; color: var(--white); border: 0; outline: 0; padding: 8px 14px; }
.fake-search button, .hero-actions a, .expert-actions a, .share-btn, .mcp-status button { background: linear-gradient(135deg, var(--orange), var(--orange-2)); color: #160d05; border: 0; border-radius: 999px; padding: 12px 18px; font-weight: 700; transition: transform .2s ease, box-shadow .2s ease; box-shadow: 0 12px 24px rgba(255,122,26,.2); }
.fake-search button:hover, .hero-actions a:hover, .expert-actions a:hover, .share-btn:hover, .mcp-status button:hover { transform: translateY(-2px); }
.hero { padding: 54px 0 24px; }
.compact-top { padding-top: 8px; }
.hero-grid, .ai-grid, .split-grid, .contact-grid, .sub-hero-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 28px; align-items: center; }
.eyebrow { color: var(--blue); text-transform: uppercase; letter-spacing: .18em; font-size: .82rem; margin: 0 0 16px; }
h1, h2, h3 { font-family: 'Microsoft YaHei', 'PingFang SC', 'Noto Sans SC', sans-serif; line-height: 1.2; margin: 0 0 16px; }
h1 { font-size: clamp(2.2rem, 5vw, 4.7rem); max-width: 12ch; text-shadow: 0 10px 30px rgba(0,0,0,.35); }
h2 { font-size: clamp(1.7rem, 2.8vw, 3rem); }
p { margin: 0 0 14px; color: #d2dae4; }
.hero-lead { font-size: 1.05rem; max-width: 62ch; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin: 28px 0; }
.hero-actions a:last-child { background: transparent; color: var(--white); border: 1px solid rgba(255,255,255,.18); box-shadow: none; }
.hero-metrics { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; padding: 0; margin: 20px 0 0; list-style: none; }
.hero-metrics li { background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.025)); border: 1px solid var(--line); border-radius: 24px; padding: 18px; }
.hero-metrics strong { display: block; font-size: 1.8rem; color: var(--orange-2); }
.hero-media, .sub-hero-media, .store-card { position: relative; }
.hero-media img, .sub-hero-media img, .ai-visual img, .store-card img { width: 100%; height: auto; border-radius: 32px; box-shadow: var(--shadow); border: 1px solid rgba(255,255,255,.08); }
.floating-card { position: absolute; right: 24px; bottom: 24px; background: rgba(11,16,23,.84); border: 1px solid rgba(255,255,255,.12); border-radius: 18px; padding: 14px 16px; backdrop-filter: blur(10px); }
.floating-card span { display: block; color: var(--blue); font-size: .86rem; margin-bottom: 4px; }
.section { padding: 38px 0 34px; }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 18px; margin-bottom: 24px; }
.section-heading.left { display: block; }
.section-heading p { margin: 0 0 10px; color: var(--orange-2); letter-spacing: .12em; text-transform: uppercase; font-size: .82rem; }
.angled-section, .split-band { position: relative; }
.angled-section::before, .split-band::before { content: ''; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(255,122,26,.05), rgba(95,207,255,.03)); clip-path: polygon(0 7%, 100% 0, 100% 93%, 0 100%); z-index: -1; }
.media-columns { display: grid; grid-template-columns: .95fr 1.05fr; gap: 22px; }
.dark-panel, .image-panel, .json-box, .faq-item, .review-card, .expert-card, .article-item, .how-step, .service-card, .trust-card, .standard-card, .update-chip { background: linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.025)); border: 1px solid var(--line); border-radius: 26px; box-shadow: var(--shadow); }
.dark-panel, .json-box { padding: 24px; }
.image-panel { overflow: hidden; position: relative; min-height: 100%; }
.image-panel img { width: 100%; height: 100%; object-fit: cover; min-height: 430px; }
.image-panel-copy { position: absolute; left: 22px; bottom: 22px; max-width: 32ch; background: rgba(9,13,18,.76); border-radius: 20px; padding: 18px; border: 1px solid rgba(255,255,255,.12); }
.article-item { padding: 18px; margin-top: 14px; }
.video-grid, .expert-grid, .review-grid, .how-grid, .service-grid, .trust-grid, .standard-grid, .update-grid { display: grid; gap: 18px; }
.video-grid { grid-template-columns: repeat(3, 1fr); }
.expert-grid { grid-template-columns: repeat(3, 1fr); }
.review-grid { grid-template-columns: repeat(5, 1fr); }
.how-grid { grid-template-columns: repeat(2, 1fr); margin-top: 20px; }
.service-grid, .trust-grid, .standard-grid, .update-grid { grid-template-columns: repeat(4, 1fr); }
.video-card { background: linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.02)); border: 1px solid var(--line); border-radius: 28px; overflow: hidden; box-shadow: var(--shadow); transition: transform .22s ease, border-color .22s ease; }
.video-card:hover { transform: translateY(-4px); border-color: rgba(255,122,26,.35); }
.video-cover { position: relative; display: block; overflow: hidden; }
.video-cover img { width: 100%; aspect-ratio: 16/9; object-fit: cover; transition: transform .35s ease, filter .35s ease; }
.video-card:hover .video-cover img, .video-shell.is-previewing img { transform: scale(1.04); filter: saturate(1.06) contrast(1.03); }
.preview-scan { position: absolute; inset: auto 0 0 0; height: 0; background: linear-gradient(180deg, transparent, rgba(95,207,255,.35)); opacity: 0; transition: .25s ease; }
.video-shell.is-previewing .preview-scan, .video-card:hover .preview-scan { height: 100%; opacity: 1; }
.play-badge { position: absolute; inset: 50% auto auto 50%; transform: translate(-50%, -50%) scale(.72); width: 72px; height: 72px; display: grid; place-items: center; border-radius: 50%; background: rgba(9,13,18,.82); border: 1px solid rgba(255,255,255,.2); font-size: 1.35rem; opacity: 0; transition: .25s ease; }
.video-card:hover .play-badge, .video-shell.is-previewing .play-badge { background: rgba(255,122,26,.92); color: #180e06; opacity: 1; transform: translate(-50%, -50%) scale(1); }
.video-cat, .video-tech, .video-duration { position: absolute; border-radius: 999px; padding: 8px 12px; font-size: .78rem; border: 1px solid rgba(255,255,255,.12); }
.video-cat { left: 16px; top: 16px; background: rgba(10,14,19,.76); }
.video-duration { right: 16px; bottom: 16px; background: rgba(10,14,19,.86); }
.video-tech { right: 16px; top: 16px; background: rgba(95,207,255,.16); color: var(--blue); }
.video-card-body { padding: 18px 18px 22px; }
.video-card-body h3 { font-size: 1.12rem; min-height: 58px; }
.video-meta, .video-tags, .video-foot { display: flex; flex-wrap: wrap; gap: 8px 14px; color: var(--soft); font-size: .92rem; }
.video-tags { margin-top: 12px; color: var(--blue); }
.video-foot { justify-content: space-between; margin-top: 14px; font-size: .85rem; }
.json-box pre, .faq-inline pre { margin: 0; white-space: pre-wrap; word-break: break-word; font-size: .85rem; color: #bbd1e6; }
.expert-card, .service-card, .trust-card, .standard-card, .update-chip { padding: 22px; }
.expert-top { display: flex; align-items: center; gap: 14px; }
.expert-mark { width: 54px; height: 54px; border-radius: 18px; background: linear-gradient(135deg, var(--orange), #ffc58c); color: #160d05; display: grid; place-items: center; font-weight: 800; font-size: 1.3rem; }
.expert-role { color: var(--blue); }
.expert-actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 16px; }
.expert-actions a:last-child { background: transparent; border: 1px solid rgba(255,255,255,.14); color: var(--white); box-shadow: none; }
.partner-wall { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-bottom: 18px; }
.partner-wall span { display: grid; place-items: center; min-height: 76px; border-radius: 18px; border: 1px solid var(--line); background: rgba(255,255,255,.04); font-weight: 700; letter-spacing: .06em; color: #dce4ed; }
.how-step span { color: var(--orange-2); font-weight: 800; font-size: 1.35rem; }
.contact-list { list-style: none; padding: 0; margin: 18px 0; display: grid; gap: 12px; }
.contact-list li { padding-bottom: 12px; border-bottom: 1px dashed rgba(255,255,255,.12); }
.review-card h3 { display: flex; justify-content: space-between; align-items: baseline; font-size: 1rem; }
.review-card span { font-size: .86rem; color: var(--orange-2); }
.social-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.share-buttons { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 18px; }
.faq-block { display: grid; gap: 12px; }
.faq-item { padding: 0; overflow: hidden; }
.faq-item summary { list-style: none; cursor: pointer; padding: 18px 22px; font-weight: 700; }
.faq-item p { padding: 0 22px 18px; margin: 0; color: #d3dce5; }
.update-chip time { display: inline-block; color: var(--green); font-size: .82rem; margin-bottom: 10px; }
.update-chip strong { display: block; margin-bottom: 8px; }
.site-footer { margin-top: 42px; padding: 36px 0 28px; border-top: 1px solid var(--line); background: rgba(4,7,10,.92); }
.footer-grid { display: grid; grid-template-columns: 1.1fr 1fr 1fr; gap: 24px; }
.footer-brand { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.footer-brand img { border-radius: 15px; background: rgba(255,255,255,.04); padding: 8px; }
.qr-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.qr-box { min-height: 140px; border-radius: 22px; border: 1px dashed rgba(255,255,255,.18); display: flex; flex-direction: column; justify-content: center; align-items: center; text-align: center; padding: 18px; background: rgba(255,255,255,.03); gap: 10px; }
.qr-canvas { width: 132px; height: 132px; background: #fff; border-radius: 14px; padding: 8px; }
.mcp-card { margin-top: 16px; border: 1px solid var(--line); border-radius: 22px; padding: 18px; background: rgba(255,255,255,.03); }
.mcp-card h4 { margin: 0 0 10px; font-size: 1.05rem; }
.mcp-status { display: flex; justify-content: space-between; gap: 12px; align-items: center; flex-wrap: wrap; }
.footer-bottom { display: flex; justify-content: space-between; gap: 12px; border-top: 1px solid var(--line); margin-top: 24px; padding-top: 18px; color: var(--soft); }
.breadcrumb { display: flex; gap: 10px; align-items: center; color: var(--soft); margin-bottom: 18px; flex-wrap: wrap; }
.subpage-main .section:first-of-type { padding-top: 30px; }
.sub-hero { padding: 46px 0 22px; }
@media (max-width: 1160px) {
  .video-grid, .expert-grid, .service-grid, .trust-grid, .standard-grid { grid-template-columns: repeat(2, 1fr); }
  .review-grid, .update-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr; }
}
@media (max-width: 920px) {
  .header-inner, .hero-grid, .media-columns, .ai-grid, .split-grid, .contact-grid, .sub-hero-grid, .social-grid { grid-template-columns: 1fr; display: grid; }
  .header-inner { display: grid; justify-content: stretch; }
  .main-nav { justify-content: flex-start; }
  .video-grid, .expert-grid, .review-grid, .how-grid, .partner-wall, .hero-metrics, .service-grid, .trust-grid, .standard-grid, .update-grid { grid-template-columns: 1fr; }
  h1 { max-width: 100%; }
  .section-heading { display: block; }
  .footer-bottom { flex-direction: column; }
  .play-badge { width: 60px; height: 60px; }
  .video-card-body h3 { min-height: 0; }
}