/*
设计哲学：霓虹录像厅未来主义（Neo VHS Community Futurism）。
本CSS必须强化“深夜影院控制台 + 竖屏视频社区 + AI剪辑信号 + 胶片弹幕轨道”，避免普通居中模板、廉价紫色渐变和统一圆角堆砌。
*/
:root{
  --ink:#061018;
  --ink-2:#0b1723;
  --panel:#101d2a;
  --panel-2:#142536;
  --paper:#f7f2e8;
  --muted:#a9bcc7;
  --cyan:#23e5e1;
  --cyan-soft:rgba(35,229,225,.16);
  --orange:#ff8a5b;
  --amber:#ffe2b8;
  --line:rgba(247,242,232,.14);
  --shadow:0 24px 70px rgba(0,0,0,.38);
  --font-display:"Microsoft YaHei UI","PingFang SC","Noto Sans SC",system-ui,sans-serif;
  --font-body:"Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-data:"DIN Alternate","Arial Narrow",Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;background:var(--ink);}
body{margin:0;color:var(--paper);font-family:var(--font-body);line-height:1.72;background:
  radial-gradient(circle at 12% 8%,rgba(35,229,225,.16),transparent 26rem),
  radial-gradient(circle at 86% 18%,rgba(255,138,91,.18),transparent 28rem),
  linear-gradient(180deg,#061018 0%,#0a1420 45%,#050b12 100%);}
body:before{content:"";position:fixed;inset:0;pointer-events:none;z-index:-1;background-image:linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);background-size:38px 38px;mask-image:linear-gradient(180deg,rgba(0,0,0,.8),rgba(0,0,0,.1));}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
button,input{font:inherit}
.skip-link{position:absolute;left:-999px;top:8px;background:var(--cyan);color:#041016;padding:.7rem 1rem;border-radius:999px;z-index:30}.skip-link:focus{left:8px}
.site-header{position:sticky;top:0;z-index:20;border-bottom:1px solid var(--line);background:rgba(6,16,24,.88);backdrop-filter:blur(18px)}
.nav-shell{max-width:1280px;margin:0 auto;display:flex;align-items:center;gap:1.2rem;padding:.78rem clamp(1rem,3vw,2rem)}
.brand-lockup{display:flex;align-items:center;gap:.7rem;min-width:260px}.brand-lockup>img:first-child{filter:drop-shadow(0 0 14px rgba(35,229,225,.42))}.brand-logo{max-width:208px;height:auto}
.nav-menu{list-style:none;display:flex;align-items:center;gap:.3rem;margin:0 0 0 auto;padding:0;flex-wrap:wrap}.nav-menu a{display:block;padding:.62rem .78rem;border:1px solid transparent;color:#d8e4e6;font-size:.92rem;border-radius:0 18px 0 18px;transition:.24s ease}.nav-menu a:hover,.nav-menu a:focus{border-color:rgba(35,229,225,.48);background:var(--cyan-soft);color:#fff;box-shadow:0 0 24px rgba(35,229,225,.12)}
.nav-toggle{display:none;margin-left:auto;border:1px solid rgba(35,229,225,.45);background:rgba(35,229,225,.08);color:var(--paper);padding:.55rem .9rem;border-radius:999px}
.search-strip{max-width:1280px;margin:0 auto;padding:0 clamp(1rem,3vw,2rem) 1rem;display:grid;grid-template-columns:180px minmax(280px,1fr) auto;gap:.8rem;align-items:center}.search-strip label{color:var(--amber);font-weight:700}.search-box{display:flex;background:rgba(255,255,255,.06);border:1px solid rgba(247,242,232,.13);box-shadow:inset 0 0 0 1px rgba(35,229,225,.05)}.search-box input{width:100%;background:transparent;color:#fff;border:0;padding:.85rem 1rem;outline:none}.search-box input::placeholder{color:#8fa3ad}.search-box button{border:0;background:linear-gradient(135deg,var(--cyan),var(--orange));color:#061018;font-weight:800;padding:0 1.1rem}.search-notice{margin:0;color:var(--muted);font-size:.88rem}
.hero-section{max-width:1320px;margin:0 auto;padding:clamp(2rem,6vw,6rem) clamp(1rem,3vw,2rem) 3rem;display:grid;grid-template-columns:minmax(0,1fr) minmax(320px,47%);gap:clamp(1.4rem,4vw,4rem);align-items:center}.breadcrumb,.eyebrow{margin:.2rem 0 .9rem;color:var(--cyan);font-weight:800;letter-spacing:.08em;font-size:.9rem}.breadcrumb a{text-decoration:underline;text-underline-offset:4px}.eyebrow{text-transform:uppercase;color:var(--orange)}
h1,h2,h3,h4,h5,h6{font-family:var(--font-display);line-height:1.18;margin:0 0 1rem;color:#fff;letter-spacing:-.02em}h1{font-size:clamp(2.25rem,6vw,5.8rem);max-width:12ch;text-shadow:0 0 22px rgba(35,229,225,.14)}h2{font-size:clamp(1.5rem,3vw,2.55rem)}h3{font-size:1.18rem}.hero-copy h2{font-size:clamp(1.15rem,2vw,1.75rem);max-width:760px;color:#dfeff0}.hero-desc{font-size:1.05rem;color:#c6d4d9;max-width:760px}.hero-actions{display:flex;gap:.8rem;flex-wrap:wrap;margin:1.6rem 0}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:.75rem 1.1rem;font-weight:900;border:1px solid var(--line);border-radius:2px 18px 2px 18px}.btn-primary{background:linear-gradient(135deg,var(--cyan),#7afff6 45%,var(--orange));color:#061018;box-shadow:0 18px 48px rgba(35,229,225,.18)}.btn-ghost{background:rgba(255,255,255,.05);color:#fff}.btn:hover{transform:translateY(-2px)}
.metric-reel{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);background:rgba(255,255,255,.04);margin-top:1.2rem;position:relative;overflow:hidden}.metric-reel:before{content:"";position:absolute;left:0;right:0;top:0;height:5px;background:repeating-linear-gradient(90deg,var(--cyan) 0 16px,transparent 16px 28px,var(--orange) 28px 44px,transparent 44px 56px)}.metric-reel span{padding:1.25rem .8rem;border-right:1px solid var(--line);color:var(--muted)}.metric-reel span:last-child{border-right:0}.metric-reel strong{display:block;font-family:var(--font-data);font-size:1.55rem;color:#fff}
.hero-visual,.page-hero-visual{margin:0;position:relative;border:1px solid rgba(35,229,225,.28);box-shadow:var(--shadow);background:#0b1723;clip-path:polygon(0 0,100% 5%,100% 100%,0 94%)}.hero-visual img,.page-hero-visual img{width:100%;object-fit:cover}.hero-visual figcaption,.page-hero-visual figcaption{position:absolute;left:1rem;bottom:1rem;background:rgba(6,16,24,.76);border:1px solid var(--line);padding:.45rem .65rem;color:var(--amber);font-size:.86rem}.floating-play,.play-badge{position:absolute;display:grid;place-items:center;border:1px solid rgba(255,255,255,.54);background:rgba(6,16,24,.64);color:#fff;box-shadow:0 0 30px rgba(35,229,225,.35)}.floating-play{right:1.3rem;top:1.3rem;width:76px;height:76px;border-radius:50%;font-weight:900}.play-badge{left:50%;top:50%;transform:translate(-50%,-50%) scale(.82);width:62px;height:62px;border-radius:50%;opacity:0;transition:.24s ease;font-size:1.35rem}.video-card:hover .play-badge{opacity:1;transform:translate(-50%,-50%) scale(1)}
section{position:relative}.quick-json,.video-focus,.experts,.join-section,.contact-section,.reviews,.faq-section,.page-section{max-width:1280px;margin:0 auto;padding:clamp(2.4rem,6vw,5rem) clamp(1rem,3vw,2rem)}.section-heading{max-width:860px;margin-bottom:1.4rem}.section-heading p,.page-section p{color:#c3d0d6}.split-heading{display:grid;grid-template-columns:minmax(0,.9fr) minmax(260px,.55fr);gap:2rem;align-items:end;max-width:none}.json-panel{white-space:pre-wrap;overflow:auto;background:linear-gradient(135deg,rgba(16,29,42,.92),rgba(8,18,29,.92));border:1px solid rgba(35,229,225,.24);border-left:5px solid var(--cyan);color:#d9fdfc;padding:1rem;box-shadow:var(--shadow);font-size:.92rem}.compact-json{font-size:.86rem}.mini-json{font-size:.78rem;margin-top:.8rem;box-shadow:none}.video-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1rem}.video-card{position:relative;background:linear-gradient(180deg,rgba(255,255,255,.07),rgba(255,255,255,.035));border:1px solid var(--line);box-shadow:0 18px 48px rgba(0,0,0,.22);overflow:hidden;transition:.24s ease}.video-card:hover{transform:translateY(-6px);border-color:rgba(35,229,225,.58);box-shadow:0 22px 60px rgba(35,229,225,.13)}.video-card.large-card{grid-row:span 2}.video-card>a{display:block;position:relative;background:#0b1723}.video-card img{width:100%;aspect-ratio:16/10;object-fit:cover;filter:saturate(1.04)}.large-card img{aspect-ratio:3/4}.video-info{padding:1rem}.tag-line{color:var(--cyan)!important;font-size:.88rem;margin:.1rem 0 .65rem}.video-info p{color:#c5d4d8;margin:.4rem 0}.engagement{display:flex;gap:.5rem;flex-wrap:wrap;margin-top:.8rem}.engagement span{font-family:var(--font-data);color:var(--amber);border:1px solid rgba(255,226,184,.26);padding:.2rem .45rem;background:rgba(255,226,184,.05)}
.expert-grid,.review-grid,.feature-rail,.timeline{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1rem;margin:1.2rem 0}.expert-grid article,.review-grid article,.feature-rail article,.timeline article,.contact-card{background:rgba(255,255,255,.055);border:1px solid var(--line);padding:1.1rem;box-shadow:0 18px 48px rgba(0,0,0,.18)}.expert-grid a{display:inline-block;margin:.35rem .45rem .1rem 0;color:#061018;background:var(--cyan);font-weight:800;padding:.35rem .6rem}.review-grid span{color:var(--amber);font-family:var(--font-data)}
.join-section{display:grid;grid-template-columns:minmax(260px,.8fr) minmax(0,1.2fr);gap:2rem;align-items:center}.logo-wall{display:grid;grid-template-columns:repeat(2,1fr);gap:.85rem}.logo-wall span{min-height:86px;display:grid;place-items:center;background:rgba(255,255,255,.05);border:1px solid rgba(35,229,225,.22);font-weight:900;color:#fff;letter-spacing:.08em;box-shadow:inset 0 0 28px rgba(35,229,225,.06)}.howto-list{padding-left:1.2rem;color:#c8d7dc}.howto-list li{margin:.8rem 0}.contact-section{display:grid;grid-template-columns:minmax(0,.9fr) minmax(320px,.75fr);gap:1.2rem;align-items:start}.contact-card dl{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.8rem;margin:1rem 0}.contact-card dt{color:var(--cyan);font-weight:900}.contact-card dd{margin:0;color:#fff;word-break:break-all}.studio-photo{margin:0;border:1px solid var(--line);box-shadow:var(--shadow)}.studio-photo figcaption{padding:.55rem .75rem;color:var(--amber);background:rgba(255,255,255,.04)}
.faq-section details{border:1px solid var(--line);background:rgba(255,255,255,.048);margin:.75rem 0;padding:1rem}.faq-section summary{cursor:pointer;font-weight:900;color:#fff}.faq-section p{color:#c5d4d8}.page-hero{max-width:1280px;margin:0 auto;padding:clamp(2rem,5vw,4.2rem) clamp(1rem,3vw,2rem);display:grid;grid-template-columns:minmax(0,1fr) minmax(320px,.72fr);gap:2rem;align-items:center}.page-hero h1{font-size:clamp(2rem,4vw,4rem);max-width:14ch}.page-hero p{color:#c5d4d8}.page-hero-visual img{aspect-ratio:16/10;object-fit:cover}.site-footer{border-top:1px solid var(--line);background:#050b12;padding:2.6rem clamp(1rem,3vw,2rem)}.footer-grid{max-width:1280px;margin:0 auto;display:grid;grid-template-columns:minmax(0,1.2fr) auto minmax(250px,.55fr);gap:2rem;align-items:start}.footer-grid p{color:#c1d0d4}.qr-pair{display:flex;gap:1rem}.qr-pair figure{margin:0;text-align:center;color:var(--amber)}.qr-pair img{border:1px solid rgba(35,229,225,.3);background:#081018;padding:.35rem}.share-box button{margin:.25rem;border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.06);color:#fff;padding:.5rem .7rem}.share-box button:hover{background:var(--orange);color:#061018}.compact-header{position:sticky}
@media (max-width:980px){.nav-shell{align-items:flex-start}.nav-toggle{display:block}.nav-menu{display:none;width:100%;margin:0;order:3;grid-column:1/-1}.nav-menu.is-open{display:grid;grid-template-columns:1fr}.nav-shell{flex-wrap:wrap}.search-strip{grid-template-columns:1fr}.hero-section,.page-hero,.split-heading,.join-section,.contact-section{grid-template-columns:1fr}.metric-reel{grid-template-columns:repeat(2,1fr)}.video-grid,.expert-grid,.review-grid,.feature-rail,.timeline{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1fr}.brand-lockup{min-width:0}.brand-logo{max-width:170px}}
@media (max-width:620px){h1{font-size:2.25rem}.hero-section{padding-top:1.6rem}.search-box{flex-direction:column}.search-box button{padding:.75rem}.metric-reel,.video-grid,.expert-grid,.review-grid,.feature-rail,.timeline,.contact-card dl{grid-template-columns:1fr}.qr-pair{flex-wrap:wrap}.logo-wall{grid-template-columns:1fr}.hero-visual,.page-hero-visual{clip-path:none}.footer-grid{gap:1.3rem}.nav-shell{padding:.7rem 1rem}}
@media (prefers-reduced-motion:no-preference){.hero-copy,.hero-visual,.video-card,.json-panel{animation:riseIn .7s ease both}.video-card:nth-child(2){animation-delay:.08s}.video-card:nth-child(3){animation-delay:.16s}.video-card:nth-child(4){animation-delay:.24s}@keyframes riseIn{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:translateY(0)}}.btn,.video-card,.nav-menu a{transition:transform .24s ease,background .24s ease,border-color .24s ease,box-shadow .24s ease}}