:root{--bg:#F3FBFA;--deep:#E4F4F1;--card:#FFFFFF;--sub:#D4EFEC;--ink:#0D2E2B;--text:#163834;--muted:#4A706C;--aux:#6A8E89;--brand:#0E9A88;--bright:#1EC8B6;--dark:#0A6B5E;--porcelain:#F7FFFE;--border:rgba(14,154,136,.16);--strong:rgba(14,154,136,.42);--shadow:0 12px 28px rgba(10,107,94,.08)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;font-size:15px;line-height:1.7;overflow-x:hidden;padding-top:122px}a{color:inherit;text-decoration:none}button{font:inherit}img{max-width:100%;display:block}.skip-link{position:fixed;left:12px;top:-60px;z-index:1000;background:#fff;color:var(--dark);padding:8px 12px;border-radius:8px}.skip-link:focus{top:28px}.cyanline{position:fixed;top:0;left:0;right:0;height:22px;background:var(--dark);color:#fff;z-index:90;font-size:12px}.top-inner,.screenbar-inner,.mirror-tabs-inner,.footer-inner,.container{max-width:1120px;margin:0 auto}.top-inner{height:22px;display:flex;align-items:center;justify-content:space-between;padding:0 16px}.top-brand{font-weight:700;letter-spacing:.03em}.top-search{height:22px;border:0;background:transparent;color:#fff;padding:0 4px;cursor:pointer}.screenbar{position:fixed;top:22px;left:0;right:0;height:60px;background:#fff;border-bottom:1px solid var(--border);z-index:89}.screenbar-inner{height:60px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;padding:0 16px}.brand-lockup{justify-self:start;min-width:88px;height:44px;display:flex;align-items:center}.brand-logo,.drawer-logo,.footer-logo{height:28px;width:auto;object-fit:contain;object-position:center}.brand-fallback{font-size:16px;font-weight:800;color:var(--ink)}.drawer-trigger,.app-link,.btn{min-height:44px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;white-space:nowrap}.drawer-trigger{justify-self:center;min-width:88px;padding:0 18px;border:1px solid var(--strong);background:#fff;color:var(--dark);cursor:pointer}.app-link{justify-self:end;min-width:92px;color:#fff;background:linear-gradient(135deg,#1EC8B6 0%,#0E9A88 55%,#0A6B5E 100%);padding:0 16px}.mirror-tabs{position:fixed;top:82px;left:0;right:0;height:40px;background:var(--porcelain);border-bottom:1px solid var(--border);z-index:88}.mirror-tabs-inner{height:40px;display:flex;align-items:center;justify-content:center;gap:8px;padding:0 16px}.mirror-tabs a{font-size:13px;min-height:30px;padding:4px 14px;border-radius:9px;display:flex;align-items:center;color:var(--dark)}.mirror-tabs a.active{background:var(--brand);color:#fff}.site-main{min-height:60vh}.container{padding:34px 16px 64px}.page-kicker{font-size:13px;color:var(--brand);font-weight:800;letter-spacing:.08em;margin:0 0 8px}.page-head{margin-bottom:24px}.page-head h1{font-size:24px;line-height:1.3;color:var(--ink);margin:0 0 12px}.page-head p{max-width:820px;margin:0;color:var(--muted)}h2{font-size:20px;line-height:1.4;color:var(--ink);margin:0 0 12px}h3{font-size:16px;line-height:1.5;color:var(--ink);margin:0 0 8px}p{margin:0 0 14px}.hero-media,.media-slot{background:var(--porcelain);border:1px solid var(--border);border-radius:14px;display:flex;align-items:center;justify-content:center;overflow:hidden}.hero-media{height:260px;margin-bottom:20px}.hero-media img,.media-slot img{width:100%;height:100%;object-fit:contain;object-position:center}.hero-copy{background:#fff;border:1px solid var(--border);box-shadow:var(--shadow);border-radius:14px;padding:22px}.hero-copy .brand-caption{font-size:13px;color:var(--brand);font-weight:800;margin-bottom:6px}.hero-copy h1{font-size:24px;line-height:1.3;margin:0 0 10px;color:var(--ink)}.hero-copy p{max-width:850px}.actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}.btn{height:42px;padding:0 18px}.btn-primary{background:linear-gradient(135deg,#1EC8B6 0%,#0E9A88 55%,#0A6B5E 100%);color:#fff;border:1px solid transparent}.btn-secondary{background:#fff;color:var(--dark);border:1px solid var(--strong)}.section{margin-top:28px}.section-head{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:14px}.section-head p{margin:0;color:var(--muted);font-size:13px}.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.card{background:#fff;border:1px solid var(--border);border-radius:12px;padding:18px;box-shadow:var(--shadow)}.card .media-slot{height:180px;margin:-4px -4px 14px}.card p:last-child{margin-bottom:0}.featured{background:var(--deep);border:1px solid var(--strong);border-radius:14px;padding:20px}.featured .media-slot{height:200px;margin-bottom:16px}.section-media{height:200px}.long-card{min-height:100%}.rack-detail{background:#fff;border:1px solid var(--border);border-radius:10px;padding:16px}.rack-detail h2{font-size:16px}.discover-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.discover-card{background:#fff;border:1px solid var(--border);border-radius:12px;padding:18px}.classroom-list,.record-list,.short-list,.backstage-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.classroom-item,.record-item,.short-item,.backstage-item{background:#fff;border:1px solid var(--border);border-radius:12px;padding:18px}.page-numbered{display:grid;gap:12px}.page-numbered article{display:grid;grid-template-columns:46px 1fr;gap:14px;background:#fff;border:1px solid var(--border);border-radius:12px;padding:16px}.page-numbered .num{padding-top:4px}.app-product{display:grid;grid-template-columns:220px 1fr;gap:22px;align-items:center;background:#fff;border:1px solid var(--border);border-radius:14px;padding:22px;margin-bottom:20px}.app-product .media-slot{height:340px;margin:0}.terms-list{display:grid;gap:0}.number-list{list-style:none;margin:0;padding:0;display:grid;gap:10px}.number-list li{display:grid;grid-template-columns:42px 1fr;gap:12px;align-items:start;background:#fff;border:1px solid var(--border);border-radius:10px;padding:13px}.num{font-size:18px;font-weight:900;color:var(--brand);line-height:1.2}.rack-list{display:grid;gap:9px}.rack-row{background:#fff;border:1px solid var(--border);border-radius:10px;padding:13px 15px;display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,2fr) auto;gap:16px;align-items:center}.rack-row strong{color:var(--ink)}.rack-row span{color:var(--muted)}.rack-row a{color:var(--dark);font-weight:800;min-height:44px;display:flex;align-items:center}.timeline{position:relative;margin-left:8px;padding-left:24px;border-left:2px solid var(--strong);display:grid;gap:16px}.timeline-item{position:relative;background:#fff;border:1px solid var(--border);border-radius:12px;padding:16px}.timeline-item:before{content:"";position:absolute;left:-32px;top:22px;width:14px;height:14px;border-radius:50%;background:var(--brand);border:3px solid var(--bg)}.status{display:inline-flex;border-radius:99px;background:var(--sub);color:var(--dark);font-weight:800;font-size:12px;padding:3px 9px;margin-bottom:8px}.article-grid{display:grid;grid-template-columns:minmax(0,2.1fr) minmax(240px,.9fr);gap:20px}.article-body,.side-note{background:#fff;border:1px solid var(--border);border-radius:14px;padding:22px}.article-body section+section{border-top:1px solid var(--border);padding-top:22px;margin-top:22px}.article-body ul,.article-body ol{padding-left:20px;margin:10px 0 16px}.article-body li{margin:6px 0}.side-note{align-self:start;background:var(--porcelain);position:sticky;top:142px}.side-note a{display:flex;min-height:44px;align-items:center;border-top:1px solid var(--border);font-weight:700;color:var(--dark)}.side-note a:first-of-type{border-top:0}.faq-list{display:grid;gap:12px}.faq-item{background:#fff;border:1px solid var(--border);border-radius:12px;padding:18px}.faq-item h2{font-size:16px}.notice{background:var(--deep);border:1px solid var(--strong);border-radius:12px;padding:16px}.app-showcase{display:grid;grid-template-columns:220px 1fr;gap:22px;align-items:center;background:#fff;border:1px solid var(--border);border-radius:14px;padding:22px}.app-visual{height:340px;background:var(--porcelain);border:1px solid var(--border);border-radius:14px;display:flex;align-items:center;justify-content:center}.app-visual img{width:100%;height:100%;object-fit:contain}.app-icon{width:48px;height:48px;object-fit:contain;margin-bottom:12px}.mini-index{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}.mini-index a{background:#fff;border:1px solid var(--border);border-radius:12px;padding:16px;min-height:112px;display:block}.mini-index a strong{display:block;color:var(--ink);margin-bottom:5px}.mini-index a span{color:var(--muted);font-size:13px}.site-footer{background:var(--dark);color:var(--sub);border-top:1px solid rgba(247,255,254,.24)}.footer-inner{padding:34px 16px 70px}.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:22px}.footer-brand strong{display:block;color:#fff}.footer-brand span{font-size:12px;color:var(--sub)}.footer-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;padding:22px 0;border-top:1px solid rgba(247,255,254,.18);border-bottom:1px solid rgba(247,255,254,.18)}.footer-grid h2{font-size:13px;color:#fff;margin-bottom:6px}.footer-grid a{display:block;font-size:13px;min-height:30px;color:var(--sub)}.footer-note,.copyright{font-size:13px;color:var(--sub);max-width:900px}.footer-note{margin-top:18px}.overlay{position:fixed;inset:0;background:rgba(13,46,43,.44);z-index:120;opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.overlay.is-open{opacity:1;visibility:visible;pointer-events:auto}.drawer-panel{position:fixed;z-index:130;left:50%;bottom:0;width:min(720px,100%);max-height:70vh;background:#fff;border:1px solid var(--border);border-bottom:0;border-radius:16px 16px 0 0;transform:translate(-50%,102%);visibility:hidden;pointer-events:none;transition:.24s;overflow:auto}.drawer-panel.is-open{transform:translate(-50%,0);visibility:visible;pointer-events:auto}.drawer-head{position:sticky;top:0;background:#fff;display:flex;align-items:center;justify-content:space-between;padding:12px 16px;border-bottom:1px solid var(--border);z-index:2}.drawer-brand{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--ink)}.panel-close{min-height:44px;padding:0 14px;border:1px solid var(--strong);border-radius:9px;background:#fff;color:var(--dark);cursor:pointer}.drawer-groups{padding:12px 16px 22px}.drawer-group{padding:10px 0}.drawer-group h2{font-size:13px;color:var(--brand);margin-bottom:8px}.drawer-group a{display:grid;grid-template-columns:110px 1fr;gap:10px;padding:10px 0;border-top:1px solid var(--border);min-height:52px}.drawer-group a b{color:var(--ink)}.drawer-group a span{color:var(--muted);font-size:13px}.search-layer{position:fixed;z-index:135;left:0;right:0;top:82px;visibility:hidden;pointer-events:none;opacity:0;transition:.2s}.search-layer.is-open{visibility:visible;pointer-events:auto;opacity:1}.search-card{max-width:720px;margin:10px auto 0;background:#fff;border:1px solid var(--border);border-radius:14px;box-shadow:var(--shadow);padding:18px}.search-head{display:flex;align-items:center;justify-content:space-between}.search-head h2{margin:0}.search-presets{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}.search-presets a{min-height:44px;display:flex;align-items:center;padding:0 14px;border-radius:10px;background:var(--porcelain);border:1px solid var(--border);color:var(--dark);font-weight:700}.lock-scroll{overflow:hidden}.mobile-bottom{display:none}.card a:focus-visible,.btn:focus-visible,.drawer-trigger:focus-visible,.app-link:focus-visible,.top-search:focus-visible,.panel-close:focus-visible,.mirror-tabs a:focus-visible,.mobile-bottom a:focus-visible,.footer-grid a:focus-visible,.rack-row a:focus-visible,.mini-index a:focus-visible{outline:3px solid rgba(30,200,182,.45);outline-offset:2px}.btn:hover,.app-link:hover{filter:brightness(.96)}.card:hover,.mini-index a:hover{border-color:var(--strong)}
@media(max-width:820px){.discover-grid,.classroom-list,.record-list,.short-list,.backstage-list,.app-product{grid-template-columns:1fr}body{padding-top:82px;padding-bottom:calc(48px + env(safe-area-inset-bottom))}.mirror-tabs{display:none}.container{padding-top:24px}.grid-3,.grid-2,.mini-index,.article-grid,.app-showcase{grid-template-columns:1fr}.side-note{position:static}.rack-row{grid-template-columns:1fr;gap:4px}.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.drawer-panel{max-height:78vh}.search-layer{top:0;bottom:0;background:var(--dark);padding:72px 16px 64px}.search-card{margin:0;background:var(--dark);border-color:rgba(247,255,254,.22);color:#fff;box-shadow:none}.search-card h2,.search-card p{color:#fff}.search-card .panel-close{background:transparent;color:#fff;border-color:rgba(247,255,254,.45)}.search-presets a{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.2)}.mobile-bottom{position:fixed;left:0;right:0;bottom:0;z-index:110;height:calc(48px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);display:grid;grid-template-columns:repeat(5,1fr);background:#fff;border-top:1px solid var(--border)}.mobile-bottom a{height:48px;display:flex;align-items:center;justify-content:center;font-size:12px;color:var(--dark)}.mobile-bottom a.active{background:var(--brand);color:#fff}.footer-inner{padding-bottom:76px}.app-visual{height:320px}.hero-media{height:220px}}
@media(max-width:520px){.screenbar-inner{grid-template-columns:minmax(84px,1fr) auto minmax(84px,1fr);gap:6px}.brand-logo{max-width:108px}.drawer-trigger{min-width:74px;padding:0 12px}.app-link{min-width:78px;padding:0 10px}.grid-3{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.drawer-group a{grid-template-columns:94px 1fr}.hero-copy{padding:18px}.section-head{display:block}.section-head p{margin-top:4px}}