:root {
  --ink: #0b0e12;
  --panel: #121820;
  --panel-2: #18212b;
  --line: rgba(255,255,255,.12);
  --soft-line: rgba(13,19,25,.09);
  --paper: #f5f4f0;
  --paper-2: #e9e8e4;
  --text: #10151b;
  --muted: #63707d;
  --orange: #ff5a36;
  --orange-deep: #d94324;
  --blue: #76d2f4;
  --lime: #d5ff6d;
  --shadow: 0 20px 70px rgba(10,13,18,.14);
  --radius: 22px;
  --serif: "Noto Serif SC", "Songti SC", STSong, serif;
  --sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", Arial, sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.65;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
button { cursor: pointer; }
img { display: block; max-width: 100%; }
::selection { background: var(--orange); color: #fff; }

.page-shell { overflow: clip; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  background: rgba(11,14,18,.高清视频);
  color: #fff;
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(255,255,255,.1);
}
.header-row {
  min-height: 72px;
  max-width: 1380px;
  margin: auto;
  padding: 0 28px;
  display: flex;
  align-items: center;
  gap: 26px;
}
.brand-lockup { display: inline-flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand-mark {
  width: 43px;
  height: 43px;
  display: grid;
  place-items: center;
  position: relative;
  color: #0b0e12;
  font-family: var(--mono);
  font-size: 22px;
  font-weight: 900;
  letter-spacing: -2px;
  background: var(--orange);
  clip-path: polygon(12% 0,100% 0,88% 100%,0 100%);
}
.brand-copy { line-height: 1; }
.brand-copy strong { display: block; font-size: 18px; letter-spacing: .04em; }
.brand-copy small { display: block; color: rgba(255,255,255,.56); font: 9px/1.3 var(--mono); letter-spacing: .11em; margin-top: 4px; }
.primary-nav { display: flex; align-items: center; gap: 5px; flex: 1; }
.primary-nav a { padding: 8px 10px; font-size: 13px; color: rgba(255,255,255,.72); transition: .2s ease; white-space: nowrap; }
.primary-nav a:hover, .primary-nav a[aria-current="page"] { color: #fff; }
.header-action { border: 1px solid rgba(255,255,255,.22); color: #fff; background: transparent; border-radius: 99px; padding: 8px 13px; font-size: 12px; white-space: nowrap; }
.header-action:hover { background: #fff; color: var(--ink); }
.menu-trigger { display:none; color:#fff; background:transparent; border:0; font-size:26px; }

.search-rail { background: #10151c; border-bottom: 1px solid rgba(255,255,255,.08); }
.search-inner { max-width: 1380px; margin:auto; padding: 10px 28px 13px; display: flex; gap: 12px; align-items:center; }
.search-label { color: var(--orange); font: 11px var(--mono); letter-spacing:.12em; white-space: nowrap; }
.search-box { position: relative; flex: 1; max-width: 680px; }
.search-box input { width:100%; border: 1px solid rgba(255,255,255,.15); border-radius: 8px; background:rgba(255,255,255,.06); color:#fff; padding:9px 13px 9px 37px; outline:0; font-size: 13px; }
.search-box input:focus { border-color: var(--orange); background:rgba(255,255,255,.1); }
.search-icon { position:absolute; left:13px; top:50%; transform:translateY(-50%); color: var(--orange); font-size:14px; }
.search-hint { color:rgba(255,255,255,.42); font-size:11px; margin-left:auto; }

.hero { min-height: 650px; background: var(--ink); color:#fff; position:relative; isolation:isolate; display:flex; align-items:flex-end; }
.hero-backdrop { position:absolute; inset:0; z-index:-2; overflow:hidden; }
.hero-backdrop img { width:100%; height:100%; object-fit:cover; object-position:center; opacity:.87; }
.hero::after { content:""; position:absolute; z-index:-1; inset:0; background: linear-gradient(90deg, rgba(6,8,11,.96) 0%, rgba(6,8,11,.72) 33%, rgba(6,8,11,.23) 70%, rgba(6,8,11,.38) 100%), linear-gradient(0deg, rgba(6,8,11,.9), transparent 45%); }
.hero-grid { width:min(1380px, 100%); margin:auto; padding: 90px 28px 42px; display:grid; grid-template-columns: minmax(0, 1fr) 350px; align-items:end; gap: 40px; }
.eyebrow { margin:0 0 17px; color:var(--orange); font: 11px var(--mono); letter-spacing:.15em; text-transform:uppercase; }
.hero h1 { max-width:810px; margin:0; font-family:var(--serif); font-weight:900; font-size:clamp(45px, 7vw, 95px); letter-spacing:-.075em; line-height:.98; }
.hero h1 em { color:var(--orange); font-style:normal; }
.hero-lead { max-width:560px; color:rgba(255,255,255,.78); font-size:17px; margin:28px 0; }
.hero-actions { display:flex; flex-wrap:wrap; gap:10px; }
.button { min-height:45px; display:inline-flex; align-items:center; justify-content:center; gap:9px; padding:10px 17px; border-radius:9px; border:1px solid transparent; font-weight:800; font-size:13px; transition: transform .2s ease, background .2s ease, color .2s ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { background:var(--orange); color:#fff; }
.button-primary:hover { background:var(--orange-deep); }
.button-ghost { color:#fff; border-color:rgba(255,255,255,.3); background:rgba(255,255,255,.08); }
.button-dark { color:#fff; background:var(--ink); }
.button-outline { color:var(--text); border-color:var(--soft-line); background:transparent; }
.hero-sidecard { border:1px solid rgba(255,255,255,.2); background:rgba(10,14,18,.72); backdrop-filter:blur(13px); padding:22px; border-radius:16px; }
.hero-sidecard .tiny-title { font: 10px var(--mono); color:rgba(255,255,255,.54); letter-spacing:.14em; margin:0 0 13px; }
.now-playing { display:flex; gap:14px; align-items:center; }
.play-disc { width:58px; height:58px; flex:0 0 58px; border:1px solid rgba(255,255,255,.43); display:grid; place-items:center; border-radius:50%; color:var(--orange); font-size:18px; }
.now-playing strong { display:block; font-size:15px; line-height:1.35; }
.now-playing span { display:block; color:rgba(255,255,255,.58); font-size:12px; margin-top:4px; }
.waveform { height:28px; display:flex; align-items:center; gap:3px; margin:19px 0 4px; }
.waveform i { display:block; width:3px; border-radius:3px; background:var(--orange); animation:pulse 1.6s infinite ease-in-out; }
.waveform i:nth-child(1){height:8px}.waveform i:nth-child(2){height:17px;animation-delay:.1s}.waveform i:nth-child(3){height:25px;animation-delay:.2s}.waveform i:nth-child(4){height:12px;animation-delay:.3s}.waveform i:nth-child(5){height:20px;animation-delay:.4s}.waveform i:nth-child(6){height:9px;animation-delay:.5s}.waveform i:nth-child(7){height:26px;animation-delay:.6s}.waveform i:nth-child(8){height:15px;animation-delay:.7s}.waveform i:nth-child(9){height:21px;animation-delay:.8s}.waveform i:nth-child(10){height:11px;animation-delay:.9s}.waveform i:nth-child(11){height:18px;animation-delay:1s}.waveform i:nth-child(12){height:7px;animation-delay:1.1s}
@keyframes pulse { 50%{ transform:scaleY(.45); opacity:.55; } }
.hero-foot { width:min(1380px, 100%); padding:0 28px 34px; margin:auto; display:flex; gap:20px; align-items:center; color:rgba(255,255,255,.62); font-size:12px; }
.hero-foot span { padding-left:14px; position:relative; }
.hero-foot span::before { content:""; position:absolute; width:6px; height:6px; left:0; top:50%; transform:translateY(-50%); background:var(--orange); border-radius:50%; }

.ticker { background: var(--orange); color:#fff; overflow:hidden; }
.ticker-track { min-width:max-content; display:flex; gap:44px; padding:11px 0; font:700 12px var(--mono); letter-spacing:.04em; animation:scroll 35s linear infinite; }
.ticker-track span { white-space:nowrap; }
@keyframes scroll { to{ transform: translateX(-50%); } }

main { background:var(--paper); }
.section { padding: 108px 28px; }
.section-inner { max-width:1380px; margin:auto; }
.section-dark { background:var(--ink); color:#fff; }
.section-sand { background:#ebe9e2; }
.section-kicker { display:flex; align-items:center; gap:12px; color:var(--orange); font: 11px var(--mono); letter-spacing:.13em; text-transform:uppercase; margin-bottom:12px; }
.section-kicker::before { content:""; width:28px; height:1px; background:currentColor; }
.section-heading { display:grid; grid-template-columns: minmax(0, .85fr) minmax(260px,.55fr); gap:50px; align-items:end; margin-bottom:42px; }
.section-heading h2 { font:900 clamp(33px, 4.4vw, 58px)/1.04 var(--serif); letter-spacing:-.06em; margin:0; }
.section-heading h2 .accent { color:var(--orange); }
.section-heading p { margin:0; color:var(--muted); font-size:15px; }
.section-dark .section-heading p { color:rgba(255,255,255,.58); }

.metrics-band { background:#111820; color:#fff; }
.metrics-inner { max-width:1380px; margin:auto; display:grid; grid-template-columns:repeat(4, 1fr); }
.metric { padding:27px 28px; border-left:1px solid rgba(255,255,255,.12); }
.metric:first-child { border-left:0; }
.metric b { display:block; font:900 clamp(26px,3vw,42px)/1 var(--mono); color:var(--orange); }
.metric span { display:block; color:rgba(255,255,255,.58); font-size:12px; margin-top:8px; }

.feature-layout { display:grid; grid-template-columns: 1.2fr .8fr; gap:26px; }
.video-stage { min-height:560px; position:relative; border-radius:var(--radius); overflow:hidden; background:#1b1f24; color:#fff; isolation:isolate; }
.video-stage img { width:100%; height:100%; object-fit:cover; position:absolute; inset:0; z-index:-2; }
.video-stage::after { content:""; position:absolute; inset:0; z-index:-1; background:linear-gradient(0deg,rgba(7,10,13,.88),transparent 62%),linear-gradient(90deg,rgba(7,10,13,.55),transparent); }
.video-stage-content { position:absolute; left:31px; right:31px; bottom:28px; }
.video-stage .video-category { color:var(--lime); font:11px var(--mono); letter-spacing:.12em; }
.video-stage h3 { max-width:580px; margin:12px 0 9px; font:900 clamp(28px,3.7vw,51px)/1.06 var(--serif); letter-spacing:-.05em; }
.video-stage p { margin:0; max-width:580px; color:rgba(255,255,255,.72); font-size:14px; }
.stage-play { position:absolute; right:28px; top:28px; width:72px; height:72px; border:1px solid rgba(255,255,255,.65); border-radius:50%; display:grid; place-items:center; background:rgba(11,14,18,.45); font-size:24px; transition:.25s ease; }
.video-stage:hover .stage-play { color:var(--ink); background:var(--orange); border-color:var(--orange); transform:scale(1.08); }
.stage-meta { display:flex; flex-wrap:wrap; gap:12px; margin-top:17px; color:rgba(255,255,255,.62); font:11px var(--mono); }
.video-list { display:flex; flex-direction:column; gap:1px; background:var(--soft-line); }
.video-row { display:grid; grid-template-columns:86px 1fr auto; gap:14px; align-items:center; background:var(--paper); padding:14px; transition:.2s ease; }
.video-row:hover { background:#fff; transform:translateX(4px); }
.row-thumb { height:70px; overflow:hidden; background:#1b1f24; }
.row-thumb img { width:100%; height:100%; object-fit:cover; }
.row-body small { color:var(--orange); font:10px var(--mono); letter-spacing:.1em; }
.row-body h3 { margin:4px 0 0; font-size:14px; line-height:1.35; }
.row-meta { font:10px var(--mono); color:var(--muted); text-align:right; white-space:nowrap; }

.media-ribbon { display:grid; grid-template-columns:repeat(6,1fr); gap:10px; }
.media-chip { min-height:155px; border:1px solid var(--soft-line); display:flex; flex-direction:column; justify-content:space-between; padding:16px; background:rgba(255,255,255,.45); transition:.25s ease; }
.media-chip:hover { background:var(--orange); color:#fff; transform:translateY(-6px); box-shadow:var(--shadow); }
.media-chip span { font:11px var(--mono); color:var(--orange); }
.media-chip:hover span { color:#fff; }
.media-chip b { max-width:100px; font:900 19px/1.15 var(--serif); letter-spacing:-.04em; }
.media-chip i { font-style:normal; font:10px var(--mono); }

.reel-scroll { display:grid; grid-template-columns:repeat(4, minmax(0, 1fr)); gap:18px; }
.reel-card { min-height:465px; position:relative; overflow:hidden; background:#19212a; color:#fff; border-radius:14px; isolation:isolate; transition:transform .25s ease; }
.reel-card:hover { transform:translateY(-8px); }
.reel-card img { width:100%; height:100%; object-fit:cover; position:absolute; inset:0; z-index:-2; }
.reel-card::after { content:""; position:absolute; inset:0; z-index:-1; background:linear-gradient(0deg,rgba(5,8,11,.93),transparent 65%); }
.reel-copy { position:absolute; bottom:0; left:0; right:0; padding:20px; }
.reel-copy .pill { display:inline-flex; background:rgba(255,255,255,.16); backdrop-filter:blur(8px); padding:5px 8px; font:10px var(--mono); border-radius:99px; }
.reel-copy h3 { margin:10px 0 7px; font:900 22px/1.16 var(--serif); letter-spacing:-.04em; }
.reel-copy p { margin:0; font-size:12px; color:rgba(255,255,255,.7); }
.reel-stats { margin-top:16px; display:flex; gap:10px; font:10px var(--mono); color:rgba(255,255,255,.65); }
.reel-play { position:absolute; top:18px; right:18px; width:42px; height:42px; border-radius:50%; background:var(--orange); color:#fff; display:grid; place-items:center; opacity:0; transform:translateY(8px); transition:.25s ease; }
.reel-card:hover .reel-play, .reel-card:focus-within .reel-play { opacity:1; transform:translateY(0); }

.ai-layout { display:grid; grid-template-columns:1fr 1fr; gap:28px; align-items:stretch; }
.ai-art { min-height:530px; border-radius:var(--radius); overflow:hidden; position:relative; }
.ai-art img { width:100%; height:100%; object-fit:cover; }
.ai-art .ai-float { position:absolute; left:24px; top:24px; padding:10px 12px; background:rgba(7,13,18,.77); border:1px solid rgba(118,210,244,.45); color:var(--blue); font:11px var(--mono); backdrop-filter:blur(10px); }
.ai-console { background:#111820; border-radius:var(--radius); padding:33px; color:#fff; display:flex; flex-direction:column; }
.console-top { display:flex; justify-content:space-between; align-items:center; padding-bottom:23px; border-bottom:1px solid rgba(255,255,255,.12); }
.console-top h3 { margin:0; font:900 28px/1 var(--serif); letter-spacing:-.04em; }
.console-live { color:var(--lime); font:10px var(--mono); letter-spacing:.1em; }
.console-live::before { content:""; display:inline-block; width:7px; height:7px; border-radius:50%; background:currentColor; margin-right:6px; }
.timeline { margin:27px 0; flex:1; }
.timeline-item { display:grid; grid-template-columns:74px 1fr; gap:13px; position:relative; padding:0 0 21px; }
.timeline-item::before { content:""; position:absolute; left:75px; top:18px; bottom:0; width:1px; background:rgba(255,255,255,.14); }
.timeline-item:last-child::before { display:none; }
.timeline-time { color:var(--blue); font:11px var(--mono); padding-top:2px; }
.timeline-item b { display:block; font-size:14px; }
.timeline-item p { margin:3px 0 0; color:rgba(255,255,255,.56); font-size:12px; }
.ai-result { display:grid; grid-template-columns:1fr 1fr; gap:10px; }
.result-cell { border:1px solid rgba(255,255,255,.14); padding:13px; }
.result-cell span { display:block; color:rgba(255,255,255,.48); font:10px var(--mono); }
.result-cell b { display:block; color:var(--lime); font:800 20px var(--mono); margin-top:3px; }

.topic-flow { display:grid; grid-template-columns: .8fr 1.2fr; gap:20px; }
.topic-index { background:#fff; padding:28px; border-radius:12px; }
.topic-index h3 { margin:0 0 18px; font:900 30px/1.1 var(--serif); letter-spacing:-.05em; }
.topic-index p { color:var(--muted); margin:0 0 21px; font-size:14px; }
.tag-cloud { display:flex; flex-wrap:wrap; gap:7px; }
.tag { padding:6px 9px; background:#f0efeb; color:#3d4854; font:10px var(--mono); border-radius:4px; }
.tag.hot { background:var(--orange); color:#fff; }
.discussion-list { display:flex; flex-direction:column; gap:9px; }
.discussion { background:#fff; padding:19px 21px; border-left:3px solid transparent; transition:.2s ease; }
.discussion:hover { border-color:var(--orange); transform:translateX(4px); }
.discussion-head { display:flex; align-items:center; justify-content:space-between; gap:14px; font:10px var(--mono); color:var(--muted); }
.discussion h3 { margin:8px 0 4px; font-size:16px; line-height:1.4; }
.discussion p { margin:0; color:var(--muted); font-size:13px; }

.expert-grid { display:grid; grid-template-columns:repeat(5, 1fr); gap:12px; }
.expert-card { border:1px solid rgba(255,255,255,.16); padding:20px; min-height:335px; display:flex; flex-direction:column; background:linear-gradient(145deg,rgba(255,255,255,.06),transparent); }
.expert-code { color:var(--orange); font:10px var(--mono); letter-spacing:.12em; }
.expert-avatar { width:58px; height:58px; margin:42px 0 21px; border-radius:50%; background:linear-gradient(135deg,var(--orange),#feb666); display:grid; place-items:center; color:var(--ink); font:900 20px var(--mono); }
.expert-card:nth-child(2) .expert-avatar { background:linear-gradient(135deg,var(--blue),#dadcff); }
.expert-card:nth-child(3) .expert-avatar { background:linear-gradient(135deg,var(--lime),#9dbb64); }
.expert-card:nth-child(4) .expert-avatar { background:linear-gradient(135deg,#f5d0c9,#cc7570); }
.expert-card:nth-child(5) .expert-avatar { background:linear-gradient(135deg,#c9b9f7,#6a55a2); }
.expert-card h3 { margin:0; font:900 22px/1.1 var(--serif); letter-spacing:-.05em; }
.expert-card h3 small { display:block; font:11px var(--mono); color:rgba(255,255,255,.55); margin-top:8px; letter-spacing:.05em; }
.expert-card p { color:rgba(255,255,255,.62); font-size:12px; margin:13px 0; flex:1; }
.expert-links { display:flex; gap:9px; }
.text-link { color:var(--orange); font:11px var(--mono); border-bottom:1px solid currentColor; }

.partners { display:grid; grid-template-columns:1.1fr .9fr; gap:55px; align-items:center; }
.partner-wall { display:grid; grid-template-columns:repeat(3,1fr); gap:9px; }
.partner-mark { min-height:105px; padding:13px; display:flex; flex-direction:column; justify-content:space-between; border:1px solid var(--soft-line); background:#fff; }
.partner-mark b { font:900 19px var(--mono); letter-spacing:-.08em; }
.partner-mark span { font:10px var(--mono); color:var(--muted); }
.howto-steps { border-top:1px solid var(--soft-line); }
.howto { display:grid; grid-template-columns:72px 1fr; gap:15px; padding:22px 0; border-bottom:1px solid var(--soft-line); }
.howto-no { color:var(--orange); font:900 32px/1 var(--mono); }
.howto h3 { margin:0; font-size:18px; }
.howto p { margin:6px 0 0; color:var(--muted); font-size:13px; }

.review-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:13px; }
.review { background:#fff; padding:23px; border-top:3px solid var(--orange); }
.review-stars { color:var(--orange); letter-spacing:.1em; font-size:13px; }
.review p { margin:15px 0 22px; font:600 16px/1.65 var(--serif); }
.review-foot { display:flex; justify-content:space-between; gap:10px; color:var(--muted); font:10px var(--mono); }

.faq-contact { display:grid; grid-template-columns:.9fr 1.1fr; gap:46px; }
.faq-list { border-top:1px solid var(--soft-line); }
.faq { border-bottom:1px solid var(--soft-line); }
.faq summary { padding:17px 36px 17px 0; cursor:pointer; font-weight:800; font-size:15px; position:relative; list-style:none; }
.faq summary::after { content:"+"; position:absolute; right:4px; top:14px; font:28px/1 var(--mono); color:var(--orange); transition:.2s ease; }
.faq[open] summary::after { transform:rotate(45deg); }
.faq p { margin:0 0 19px; color:var(--muted); font-size:13px; }
.contact-card { background:#10161d; color:#fff; padding:32px; position:relative; overflow:hidden; }
.contact-card::before { content:"高清视频"; position:absolute; right:-17px; bottom:-46px; color:rgba(255,255,255,.04); font:900 180px/.8 var(--mono); }
.contact-card h3 { font:900 34px/1 var(--serif); letter-spacing:-.06em; margin:0 0 10px; }
.contact-card > p { margin:0 0 25px; color:rgba(255,255,255,.6); font-size:13px; }
.contact-list { display:grid; grid-template-columns:1fr 1fr; gap:1px; background:rgba(255,255,255,.1); }
.contact-item { padding:14px; background:#10161d; }
.contact-item span { display:block; color:rgba(255,255,255,.45); font:10px var(--mono); }
.contact-item b { display:block; font-size:13px; margin-top:5px; word-break:break-all; }
.qr-row { display:flex; gap:17px; margin-top:24px; position:relative; z-index:1; }
.qr-block { display:flex; gap:10px; align-items:center; }
.qr-matrix { width:58px; height:58px; background-color:#fff; background-image: linear-gradient(90deg,#111 10%,transparent 10%,transparent 45%,#111 45%,#111 55%,transparent 55%,transparent 70%,#111 70%,#111 80%,transparent 80%),linear-gradient(#111 10%,transparent 10%,transparent 28%,#111 28%,#111 38%,transparent 38%,transparent 65%,#111 65%,#111 75%,transparent 75%); background-size:13px 13px; border:4px solid #fff; }
.qr-block span { display:block; font-size:11px; color:rgba(255,255,255,.7); }
.qr-block small { display:block; color:var(--orange); font:9px var(--mono); margin-top:3px; }

.mcp-lab { margin-top:28px; padding:17px; border:1px solid rgba(118,210,244,.32); background:rgba(118,210,244,.06); position:relative; z-index:1; }
.mcp-head { display:flex; align-items:center; justify-content:space-between; gap:10px; }
.mcp-head b { font:11px var(--mono); color:var(--blue); letter-spacing:.08em; }
.mcp-status { color:var(--lime); font:10px var(--mono); }
.mcp-rows { margin-top:13px; display:grid; grid-template-columns:repeat(3,1fr); gap:7px; }
.mcp-row { border:1px solid rgba(255,255,255,.12); padding:8px; font:10px/1.4 var(--mono); color:rgba(255,255,255,.63); }
.mcp-row span { color:var(--blue); display:block; }

.json-dock { margin-top:26px; border:1px dashed rgba(255,255,255,.22); background:rgba(255,255,255,.04); }
.section:not(.section-dark) .json-dock { border-color:var(--soft-line); background:rgba(255,255,255,.55); }
.json-dock summary { cursor:pointer; padding:12px 15px; font:10px var(--mono); color:var(--orange); letter-spacing:.06em; }
.json-dock pre { max-height:250px; margin:0; padding:0 15px 15px; overflow:auto; white-space:pre-wrap; color:rgba(255,255,255,.65); font:10px/1.6 var(--mono); }
.section:not(.section-dark) .json-dock pre { color:var(--muted); }

.share-strip { max-width:1380px; margin:auto; padding:20px 28px; display:flex; align-items:center; gap:16px; border-top:1px solid var(--soft-line); }
.share-strip > b { font:11px var(--mono); color:var(--muted); margin-right:auto; }
.share-button { border:1px solid var(--soft-line); background:#fff; padding:8px 11px; font-size:11px; font-weight:800; }
.share-button:hover { color:#fff; background:var(--orange); border-color:var(--orange); }

.site-footer { background:var(--ink); color:#fff; padding:60px 28px 25px; }
.footer-grid { max-width:1380px; margin:auto; display:grid; grid-template-columns:1.4fr repeat(3,1fr); gap:34px; }
.footer-brand p { max-width:330px; color:rgba(255,255,255,.55); font-size:13px; }
.footer-col h3 { color:var(--orange); font:10px var(--mono); letter-spacing:.12em; margin:0 0 14px; }
.footer-col a, .footer-col span { display:block; color:rgba(255,255,255,.65); font-size:12px; margin:7px 0; }
.footer-bottom { max-width:1380px; margin:39px auto 0; padding-top:20px; border-top:1px solid rgba(255,255,255,.13); display:flex; justify-content:space-between; gap:20px; color:rgba(255,255,255,.46); font:10px var(--mono); }

.toast { position:fixed; right:22px; bottom:22px; z-index:99; max-width:320px; padding:13px 16px; border-radius:8px; background:#fff; color:var(--ink); box-shadow:var(--shadow); transform:translateY(110px); opacity:0; transition:.28s ease; font-size:13px; }
.toast.show { transform:translateY(0); opacity:1; }

.reveal { opacity:0; transform:translateY(20px); transition:opacity .55s ease, transform .55s ease; }
.reveal.in { opacity:1; transform:none; }
.search-empty { display:none; padding:14px; background:#fff4ef; color:#9c3b26; font-size:13px; }
.search-empty.show { display:block; }

.page-intro { padding:80px 28px 65px; background:var(--ink); color:#fff; }
.page-intro-inner { max-width:1380px; margin:auto; }
.breadcrumb { margin-bottom:22px; color:rgba(255,255,255,.55); font:11px var(--mono); }
.breadcrumb a { color:var(--orange); }
.page-intro h1 { max-width:860px; margin:0; font:900 clamp(42px,6vw,78px)/1 var(--serif); letter-spacing:-.07em; }
.page-intro p { max-width:640px; margin:24px 0 0; color:rgba(255,255,255,.68); font-size:16px; }
.content-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:16px; }
.content-card { padding:22px; background:#fff; border-top:3px solid var(--orange); }
.content-card small { color:var(--orange); font:10px var(--mono); }
.content-card h2 { margin:11px 0 8px; font:900 23px/1.15 var(--serif); letter-spacing:-.04em; }
.content-card p { margin:0; color:var(--muted); font-size:13px; }

@media (max-width: 1120px) {
  .primary-nav { gap:0; }
  .primary-nav a { padding:8px 7px; font-size:12px; }
  .feature-layout, .ai-layout, .partners, .faq-contact { grid-template-columns:1fr; }
  .media-ribbon { grid-template-columns:repeat(3,1fr); }
  .expert-grid { grid-template-columns:repeat(3,1fr); }
  .reel-scroll { grid-template-columns:repeat(2,1fr); }
}
@media (max-width: 800px) {
  .header-row { padding:0 18px; min-height:64px; gap:10px; }
  .brand-copy small { display:none; }
  .primary-nav { display:none; position:absolute; top:64px; left:0; right:0; padding:12px 18px; flex-wrap:wrap; background:#10151c; border-top:1px solid rgba(255,255,255,.1); }
  .primary-nav.open { display:flex; }
  .primary-nav a { width:calc(50% - 5px); padding:10px; background:rgba(255,255,255,.04); }
  .menu-trigger { display:block; margin-left:auto; }
  .header-action { display:none; }
  .search-inner { padding:9px 18px 12px; }
  .search-hint { display:none; }
  .hero { min-height:680px; }
  .hero-grid { grid-template-columns:1fr; padding:84px 18px 23px; gap:27px; }
  .hero h1 { font-size:51px; }
  .hero-sidecard { max-width:100%; }
  .hero-foot { padding:0 18px 27px; flex-wrap:wrap; gap:9px; }
  .section { padding:70px 18px; }
  .section-heading { grid-template-columns:1fr; gap:14px; margin-bottom:27px; }
  .metrics-inner { grid-template-columns:repeat(2,1fr); }
  .metric:nth-child(3) { border-left:0; }
  .video-stage { min-height:440px; }
  .video-list { margin-top:18px; }
  .media-ribbon { grid-template-columns:repeat(2,1fr); }
  .media-chip { min-height:120px; }
  .reel-scroll { display:flex; overflow-x:auto; padding-bottom:10px; scroll-snap-type:x mandatory; }
  .reel-card { min-width:265px; min-height:410px; scroll-snap-align:start; }
  .topic-flow { grid-template-columns:1fr; }
  .expert-grid { display:flex; overflow-x:auto; padding-bottom:12px; scroll-snap-type:x mandatory; }
  .expert-card { min-width:235px; scroll-snap-align:start; }
  .review-grid { grid-template-columns:1fr; }
  .content-grid { grid-template-columns:1fr; }
  .footer-grid { grid-template-columns:1fr 1fr; }
  .footer-brand { grid-column:1/-1; }
  .footer-bottom { flex-direction:column; }
}
@media (max-width: 480px) {
  .hero h1 { font-size:43px; }
  .metrics-inner { grid-template-columns:1fr 1fr; }
  .metric { padding:20px 18px; }
  .video-stage-content { left:20px; right:20px; bottom:20px; }
  .stage-play { right:18px; top:18px; width:54px; height:54px; }
  .video-row { grid-template-columns:68px 1fr; }
  .row-meta { display:none; }
  .partner-wall { grid-template-columns:repeat(2,1fr); }
  .contact-list { grid-template-columns:1fr; }
  .qr-row { flex-direction:column; }
  .mcp-rows { grid-template-columns:1fr; }
  .share-strip { flex-wrap:wrap; padding:16px 18px; }
  .share-strip > b { width:100%; }
  .site-footer { padding-left:18px; padding-right:18px; }
  .footer-grid { grid-template-columns:1fr; }
  .footer-brand { grid-column:auto; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior:auto; }
  *, *::before, *::after { animation-duration:.001ms!important; animation-iteration-count:1!important; transition-duration:.001ms!important; }
}