/* 呦呦视频：数字编辑部 × 动漫制作台。深墨蓝、信号橙、纸张米白；非对称构图与硬边卡片。 */
:root {
  --ink:#101226; --ink2:#23264a; --indigo:#2f1d72; --violet:#4b35a5;
  --signal:#f15a29; --signal2:#c73b16; --paper:#f6f2e8; --paper2:#fffdf8;
  --line:#d8d0c2; --muted:#666477; --white:#fff; --shadow:0 22px 60px rgba(16,18,38,.14);
  --soft:0 12px 30px rgba(16,18,38,.08); --ease:cubic-bezier(.23,1,.32,1); --max:1240px;
}
*{box-sizing:border-box} html{scroll-behavior:smooth} body{margin:0;color:var(--ink);background:var(--paper2);font-family:"Noto Sans CJK SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;font-size:16px;line-height:1.75;text-rendering:optimizeLegibility} body.nav-open{overflow:hidden}
img,video{display:block;max-width:100%} a{color:inherit;text-decoration:none} button,input{font:inherit} button{color:inherit} :focus-visible{outline:3px solid rgba(241,90,41,.5);outline-offset:3px}
.skip-link{position:fixed;top:10px;left:10px;z-index:1000;padding:10px 14px;color:#fff;background:var(--signal2);transform:translateY(-160%);transition:transform 160ms var(--ease)} .skip-link:focus{transform:translateY(0)}
.container{width:min(var(--max),calc(100% - 40px));margin-inline:auto}.narrow{width:min(820px,calc(100% - 40px));margin-inline:auto}.section{padding:88px 0}.section--paper{background:var(--paper)}.section--ink{color:#fff;background:var(--ink)}.section--mist{background:linear-gradient(135deg,#eee9f7,#f8f5ed 70%)}
.eyebrow{display:inline-flex;align-items:center;gap:9px;margin:0 0 14px;color:var(--signal2);font-size:.78rem;font-weight:900;letter-spacing:.15em}.eyebrow:before{width:28px;height:3px;content:"";background:currentColor}
.section-head{display:grid;grid-template-columns:minmax(0,.8fr) minmax(280px,1.2fr);align-items:end;gap:48px;margin-bottom:38px}.section-head h2,.page-title h1{margin:0;font-family:"Arial Black","Microsoft YaHei",sans-serif;font-size:clamp(2rem,4.5vw,4.4rem);line-height:1.04;letter-spacing:-.045em}.section-head p{max-width:680px;margin:0;color:var(--muted)}.section--ink .section-head p{color:rgba(255,255,255,.72)}
.site-notice{color:rgba(255,255,255,.76);background:#090b1a;font-size:.78rem}.site-notice .container{display:flex;justify-content:space-between;gap:16px;padding-block:8px}.site-notice strong{color:#ffb498}
.site-header{position:sticky;top:0;z-index:100;color:#fff;background:rgba(16,18,38,.96);border-bottom:1px solid rgba(255,255,255,.1);backdrop-filter:blur(14px)}.header-row{display:flex;align-items:center;min-height:78px;gap:28px}.brand{display:inline-flex;align-items:center;gap:12px;flex:none}.brand img{width:48px;height:48px;object-fit:cover;border:1px solid rgba(255,255,255,.2)}.brand-name{font-size:1.22rem;font-weight:900}.brand-sub{display:block;color:rgba(255,255,255,.56);font-size:.64rem;letter-spacing:.14em;text-transform:uppercase}
.main-nav{display:flex;align-items:center;justify-content:flex-end;gap:4px;margin-left:auto}.main-nav a{padding:12px 13px;color:rgba(255,255,255,.82);font-size:.9rem;font-weight:800}.main-nav a:hover,.main-nav a[aria-current=page]{color:#fff;background:rgba(255,255,255,.1)}.nav-toggle{display:none;width:44px;height:44px;margin-left:auto;color:#fff;background:transparent;border:1px solid rgba(255,255,255,.25)}.nav-toggle span,.nav-toggle:before,.nav-toggle:after{display:block;width:20px;height:2px;margin:4px auto;content:"";background:currentColor}
.crumbs{color:#5e5b6d;background:#f2eee5;border-bottom:1px solid var(--line);font-size:.82rem}.crumbs ol{display:flex;flex-wrap:wrap;gap:8px;margin:0;padding:11px 0;list-style:none}.crumbs li:not(:last-child):after{margin-left:8px;content:"/";color:#9893a2}.crumbs a{font-weight:800;color:var(--indigo)}
.hero{position:relative;min-height:690px;color:#fff;background:#17123c url("../images/brand-hero.webp") center/cover no-repeat;overflow:hidden}.hero:before{position:absolute;inset:0;content:"";background:linear-gradient(90deg,rgba(8,8,27,.94),rgba(18,13,54,.78) 36%,rgba(14,10,40,.18) 74%)}.hero:after{position:absolute;right:-110px;bottom:-170px;width:420px;height:420px;content:"";border:56px solid rgba(241,90,41,.72);border-radius:50%}.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,1fr) .8fr;align-items:center;min-height:690px}.hero-copy{max-width:650px;padding:72px 0}.hero h1{margin:0;font-family:"Arial Black","Microsoft YaHei",sans-serif;font-size:clamp(3rem,7vw,6.7rem);line-height:.94;letter-spacing:-.065em}.hero h1 span{display:block;color:#ff845c}.hero-lead{max-width:610px;margin:24px 0 0;color:rgba(255,255,255,.82);font-size:clamp(1rem,1.7vw,1.25rem)}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}.hero-proof{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:35px;padding:0;color:rgba(255,255,255,.72);font-size:.82rem;list-style:none}.hero-proof li:before{margin-right:7px;color:#ff845c;content:"◆"}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:11px 20px;font-weight:900;border:1px solid transparent;border-radius:3px;transition:transform 150ms var(--ease),background 180ms var(--ease),border-color 180ms var(--ease)}.btn:active{transform:scale(.97)}.btn--signal{color:#fff;background:var(--signal)}.btn--signal:hover{background:var(--signal2)}.btn--ghost{color:#fff;border-color:rgba(255,255,255,.55);background:rgba(255,255,255,.06)}.btn--ghost:hover{border-color:#fff;background:rgba(255,255,255,.14)}.btn--ink{color:#fff;background:var(--ink)}.btn--ink:hover{background:var(--indigo)}.text-link{display:inline-flex;align-items:center;gap:8px;color:var(--indigo);font-weight:900}.text-link:after{content:"→";transition:transform 150ms var(--ease)}.text-link:hover:after{transform:translateX(4px)}
.rail{margin-top:-42px;position:relative;z-index:4}.rail-grid{display:grid;grid-template-columns:repeat(3,1fr);background:#fff;box-shadow:var(--shadow)}.rail-item{min-height:144px;padding:28px;border-right:1px solid var(--line)}.rail-item:last-child{border-right:0}.rail-item strong{display:block;margin-bottom:8px;font-size:1.02rem}.rail-item p{margin:0;color:var(--muted);font-size:.88rem}
.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.card{position:relative;padding:28px;background:#fff;border:1px solid var(--line);box-shadow:var(--soft);transition:transform 210ms var(--ease),box-shadow 210ms var(--ease),border-color 210ms var(--ease)}.card:hover{transform:translateY(-5px);border-color:#b8acd0;box-shadow:var(--shadow)}.card-kicker{color:var(--signal2);font-size:.74rem;font-weight:900;letter-spacing:.12em}.card h3{margin:10px 0 8px;font-size:1.22rem;line-height:1.3}.card p{margin:0;color:var(--muted);font-size:.91rem}.card-index{color:#cfc7bb;font:900 2.8rem/1 "Arial Black",sans-serif}.card-note{margin-top:18px!important;padding-top:14px;border-top:1px solid var(--line);font-size:.78rem!important}.tag-row{display:flex;flex-wrap:wrap;gap:7px;margin-top:17px}.tag{padding:5px 9px;color:#473a62;background:#eee9f5;border:1px solid #d9d0e8;font-size:.72rem;font-weight:900}.tag--warn{color:#714300;background:#fff1d2;border-color:#ead29f}
.video-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.video-card{background:#fff;border:1px solid var(--line);box-shadow:var(--soft)}.video-frame{position:relative;aspect-ratio:16/10;overflow:hidden;background:#16142c}.video-frame video{width:100%;height:100%;object-fit:cover;transition:transform 350ms var(--ease),filter 250ms var(--ease)}.video-card:hover video,.video-card:focus-within video{transform:scale(1.035);filter:brightness(.72)}.play-trigger{position:absolute;inset:0;display:grid;place-items:center;width:100%;color:#fff;background:linear-gradient(180deg,transparent 25%,rgba(7,7,22,.62));border:0}.play-icon{display:grid;place-items:center;width:66px;height:66px;padding-left:4px;color:#fff;background:rgba(241,90,41,.94);border:1px solid rgba(255,255,255,.7);border-radius:50%;opacity:.15;transform:translateY(10px) scale(.95);transition:opacity 180ms var(--ease),transform 180ms var(--ease)}.video-card:hover .play-icon,.video-card:focus-within .play-icon{opacity:1;transform:none}.video-body{padding:20px}.video-body h3{margin:7px 0 8px;font-size:1.05rem;line-height:1.42}.video-meta{display:flex;justify-content:space-between;gap:10px;color:var(--muted);font-size:.75rem}.video-body p{margin:0;color:var(--muted);font-size:.85rem}
.split{display:grid;grid-template-columns:.9fr 1.1fr;gap:46px;align-items:center}.visual-panel{position:relative;min-height:520px;background:#16142c url("../images/community-studio.webp") center/cover no-repeat;box-shadow:var(--shadow)}.visual-panel:after{position:absolute;inset:0;content:"";background:linear-gradient(0deg,rgba(12,12,35,.86),transparent 64%)}.visual-caption{position:absolute;z-index:2;right:26px;bottom:24px;left:26px;color:#fff}.visual-caption strong{display:block;font-size:1.36rem}.visual-caption span{color:rgba(255,255,255,.72);font-size:.84rem}.check-list{display:grid;gap:14px;margin:26px 0;padding:0;list-style:none}.check-list li{padding:16px 18px 16px 48px;background:rgba(255,255,255,.08);border-left:3px solid var(--signal)}.check-list li:before{position:absolute;margin-left:-28px;color:#ff9e7e;content:"✓";font-weight:900}
.role-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}.role{padding:24px;background:var(--paper2);border-top:5px solid var(--indigo)}.role-status{display:inline-block;margin-bottom:20px;padding:4px 8px;color:#8a5200;background:#fff0cf;font-size:.7rem;font-weight:900}.role h3{margin:0 0 8px;font-size:1.06rem}.role p{margin:0;color:var(--muted);font-size:.84rem}
.trust-box{display:grid;grid-template-columns:.72fr 1.28fr;background:var(--ink);color:#fff}.trust-title{padding:40px;background:var(--indigo)}.trust-title h2{margin:0;font-size:clamp(1.8rem,4vw,3.4rem);line-height:1.08}.trust-copy{padding:40px}.trust-copy p{margin:0 0 16px;color:rgba(255,255,255,.74)}.status-line{display:flex;gap:12px;align-items:flex-start;padding:16px 0;border-top:1px solid rgba(255,255,255,.15)}.status-mark{flex:none;width:12px;height:12px;margin-top:8px;background:var(--signal)}
.faq{border-top:1px solid var(--line)}.faq details{border-bottom:1px solid var(--line)}.faq summary{position:relative;padding:22px 54px 22px 0;cursor:pointer;font-weight:900;list-style:none}.faq summary::-webkit-details-marker{display:none}.faq summary:after{position:absolute;top:22px;right:6px;content:"+";color:var(--signal2);font-size:1.5rem;line-height:1}.faq details[open] summary:after{content:"−"}.faq details p{max-width:820px;margin:-6px 0 24px;color:var(--muted)}
.page-hero{padding:76px 0 58px;background:var(--paper);border-bottom:1px solid var(--line)}.page-title{display:grid;grid-template-columns:minmax(0,1.15fr) .85fr;gap:48px;align-items:end}.page-title p{margin:0;color:var(--muted);font-size:1.02rem}.content-grid{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:56px;align-items:start}.article h2{margin:52px 0 14px;font-size:clamp(1.5rem,3vw,2.25rem);line-height:1.2}.article h3{margin:32px 0 10px;font-size:1.2rem}.article p{margin:0 0 18px;color:#3e3d4b}.article ul,.article ol{padding-left:1.4rem}.article li{margin:9px 0}.article-meta{display:flex;flex-wrap:wrap;gap:8px 20px;padding:14px 0;color:var(--muted);border-bottom:1px solid var(--line);font-size:.8rem}.callout{margin:28px 0;padding:22px;background:#ece7f7;border-left:5px solid var(--indigo)}.callout--warn{background:#fff1d5;border-left-color:var(--signal2)}.sidebar{position:sticky;top:104px;padding:24px;background:var(--paper);border:1px solid var(--line)}.sidebar h2{margin:0 0 14px;font-size:1rem}.sidebar ul{display:grid;gap:9px;margin:0;padding:0;list-style:none}.sidebar a{color:var(--indigo);font-size:.86rem;font-weight:800}.policy-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.policy-card{padding:28px;background:var(--paper);border-left:5px solid var(--signal)}.policy-card h2,.policy-card h3{margin-top:0}
.footer{color:#fff;background:#090b1a}.footer-main{display:grid;grid-template-columns:1.25fr repeat(3,.75fr);gap:34px;padding:58px 0 42px}.footer .brand{margin-bottom:18px}.footer p{max-width:460px;color:rgba(255,255,255,.62);font-size:.84rem}.footer h2{margin:0 0 13px;color:#ff9a78;font-size:.82rem;letter-spacing:.12em}.footer ul{display:grid;gap:8px;margin:0;padding:0;list-style:none}.footer a{color:rgba(255,255,255,.72);font-size:.82rem}.footer a:hover{color:#fff}.footer-bottom{display:flex;justify-content:space-between;gap:20px;padding:17px 0 22px;border-top:1px solid rgba(255,255,255,.12);color:rgba(255,255,255,.52);font-size:.74rem}
.modal[hidden]{display:none}.modal{position:fixed;inset:0;z-index:300;display:grid;place-items:center;padding:20px;background:rgba(7,8,20,.78)}.modal-panel{width:min(520px,100%);padding:32px;background:var(--paper2);box-shadow:var(--shadow)}.modal-panel h2{margin:0 0 10px}.modal-panel p{color:var(--muted)}.modal-close{float:right;width:38px;height:38px;background:transparent;border:1px solid var(--line)}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@media(max-width:980px){.nav-toggle{display:block}.main-nav{position:fixed;top:78px;right:0;bottom:0;width:min(360px,86vw);display:grid;align-content:start;justify-content:stretch;padding:24px;background:var(--ink);transform:translateX(100%);transition:transform 220ms var(--ease)}.main-nav.is-open{transform:none}.main-nav a{padding:14px;border-bottom:1px solid rgba(255,255,255,.1)}.section-head,.page-title,.split,.trust-box,.content-grid{grid-template-columns:1fr}.hero-grid{grid-template-columns:1fr}.cards,.video-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.role-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.footer-main{grid-template-columns:1.3fr 1fr 1fr}.footer-main>div:first-child{grid-column:1/-1}.sidebar{position:static}}
@media(max-width:680px){.container,.narrow{width:min(100% - 28px,var(--max))}.site-notice .container{display:block}.site-notice span:last-child{display:none}.header-row{min-height:68px}.brand img{width:42px;height:42px}.brand-sub{display:none}.main-nav{top:68px}.hero,.hero-grid{min-height:610px}.hero{background-position:61% center}.hero:before{background:linear-gradient(90deg,rgba(8,8,27,.94),rgba(18,13,54,.77) 70%,rgba(14,10,40,.34))}.hero h1{font-size:clamp(2.8rem,15vw,4.8rem)}.hero-actions .btn{width:100%}.rail{margin-top:0}.rail-grid,.cards,.video-grid,.role-grid,.policy-grid,.footer-main{grid-template-columns:1fr}.rail-item{min-height:auto;border-right:0;border-bottom:1px solid var(--line)}.section{padding:66px 0}.section-head{gap:18px}.visual-panel{min-height:390px}.trust-title,.trust-copy{padding:28px}.footer-bottom{display:block}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation-duration:.01ms!important;transition-duration:.01ms!important}}