:root{--bg:#1C1C1E;--deep:#141416;--card:#2A2A2E;--card2:#323238;--title:#F2F2F4;--text:#D8D8DC;--muted:#A0A0A8;--muted2:#7A7A82;--silver:#C8C8D0;--blue:#6A8AAA;--line:rgba(200,200,208,.16);--line2:rgba(106,138,170,.48);--shadow:0 12px 28px rgba(0,0,0,.28)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font:15px/1.7 system-ui,-apple-system,"Segoe UI","Microsoft YaHei",sans-serif;overflow-x:hidden}body.locked{overflow:hidden}a{color:inherit;text-decoration:none}button,input{font:inherit}button{color:inherit}.wrap{width:min(980px,calc(100% - 32px));margin:auto}.site-head{position:fixed;z-index:50;inset:0 0 auto;background:var(--bg);box-shadow:0 1px 0 var(--line)}.frame-info{height:20px;background:var(--deep);font-size:12px;color:var(--silver)}.top-row{height:20px;display:flex;align-items:center;justify-content:space-between}.text-btn,.menu-btn,.modal button,.search-panel button{border:0;background:none;padding:0;cursor:pointer}.brand-row{height:54px;border-bottom:1px solid var(--line2)}.brand-inner{height:100%;display:flex;align-items:center;justify-content:space-between}.brand{min-height:44px;display:inline-flex;align-items:center;gap:10px;font-size:16px}.brand-logo{display:block;width:auto;height:24px;max-width:180px;object-fit:contain}.head-actions{display:flex;align-items:center;gap:8px}.head-link,.menu-btn{min-height:44px;display:inline-flex;align-items:center;padding:0 12px;border-radius:8px}.head-link:hover,.menu-btn:hover,.text-btn:hover{color:#fff;background:rgba(106,138,170,.15)}.frame-nav{height:42px;background:var(--card)}.frame-nav-inner{height:100%;display:flex;justify-content:center;gap:6px;align-items:center}.frame-nav a{min-height:34px;min-width:110px;display:flex;align-items:center;justify-content:center;border-radius:7px;font-size:13px}.frame-nav a.active,.frame-nav a:hover{background:var(--blue);color:#fff}main{padding-top:116px;min-height:65vh}.section{padding:48px 0;border-bottom:1px solid var(--line)}.hero-number{font-size:64px;line-height:.9;font-weight:800;color:var(--blue);letter-spacing:-4px}.eyebrow{font-size:12px;color:var(--muted);letter-spacing:.16em;text-transform:uppercase}.section h1{font-size:24px;line-height:1.3;margin:12px 0;color:var(--title)}.section h2,.article h2{font-size:20px;color:var(--title);margin:0 0 14px}.section h3,.article h3{font-size:16px;color:var(--title);margin:0 0 8px}.lead{font-size:17px;color:var(--silver);max-width:720px}.btn{display:inline-flex;min-height:42px;align-items:center;padding:0 18px;border-radius:8px;background:linear-gradient(135deg,#6A8AAA 0%,#3A4A5A 100%);color:#fff;margin-top:12px}.btn.secondary{background:transparent;border:1px solid var(--silver)}.btn:hover,.btn:focus-visible{filter:brightness(1.08);outline:2px solid var(--silver);outline-offset:2px}.filmstrip{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:8px}.film-cell{min-height:118px;border:1px solid var(--line);background:var(--deep);border-radius:8px;padding:12px;display:flex;align-items:center;justify-content:center;color:var(--muted)}.film-cell img{max-width:100%;max-height:148px;object-fit:contain}.quote-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.quote-card,.gray-card,.topic-card,.status-item,.note-item,.method-step,.term-block{background:var(--card);border:1px solid var(--line);border-radius:8px;padding:22px}.quote-card blockquote{margin:0;font-size:18px;color:var(--title)}.quote-card img,.gray-card img,.topic-card img,.article img,.center-product img,.banner-wrap img{display:block;max-width:100%;width:auto;height:auto;max-height:260px;object-fit:contain;margin:0 auto 18px}.gray-list,.topic-list,.status-list,.note-list,.method-list,.terms-list{display:grid;gap:14px}.gray-list{grid-template-columns:1fr}.topic-list{grid-template-columns:repeat(2,minmax(0,1fr))}.status-list{grid-template-columns:repeat(3,minmax(0,1fr))}.periods{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.period{border-top:2px solid var(--blue);padding-top:14px}.center-product{text-align:center;max-width:720px;margin:auto}.center-product .app-icon{max-height:48px;margin-bottom:10px}.center-product .app-shot{max-height:320px}.article{padding:42px 0}.article-head{padding:26px 0 28px;border-bottom:1px solid var(--line);margin-bottom:28px}.article-head p{max-width:760px;color:var(--silver)}.article-body{display:grid;gap:22px}.article-body p{margin:0}.article-body section{padding:22px 0;border-bottom:1px solid var(--line)}.article-body section:last-child{border-bottom:0}.single-note{border-left:3px solid var(--blue);padding:18px 20px;background:var(--card)}.checklist{margin:0;padding:0;list-style:none;display:grid;gap:12px}.checklist li{padding:18px;background:var(--card);border:1px solid var(--line);border-radius:8px}.faq{display:grid;gap:12px}.faq details{background:var(--card);border:1px solid var(--line);border-radius:8px;padding:16px 18px}.faq summary{cursor:pointer;color:var(--title);font-weight:700}.faq p{margin:12px 0 0}.banner-wrap{margin:0 0 22px}.banner-wrap img{max-height:200px}.site-footer{background:#101012;border-top:1px solid var(--line);padding:36px 0 80px;color:var(--silver);font-size:13px}.footer-grid{display:grid;grid-template-columns:1.4fr repeat(4,1fr);gap:20px}.footer-brand{display:flex;flex-direction:column;gap:6px}.footer-grid h2{font-size:13px;margin:0 0 8px;color:#fff}.footer-grid a{display:block;padding:3px 0;color:var(--silver)}.footer-grid a:hover{color:#fff}.footer-note{margin-top:26px;padding-top:18px;border-top:1px solid var(--line)}.overlay{position:fixed;z-index:80;inset:0;background:rgba(0,0,0,.65);opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.overlay.open{opacity:1;visibility:visible;pointer-events:auto}.modal{position:fixed;z-index:90;left:50%;top:50%;transform:translate(-50%,-48%);width:min(640px,92vw);max-height:84vh;overflow:auto;background:var(--card);border:1px solid var(--line2);border-radius:10px;box-shadow:var(--shadow);opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.modal.open{transform:translate(-50%,-50%);opacity:1;visibility:visible;pointer-events:auto}.modal-head{position:sticky;top:0;background:var(--card);display:flex;justify-content:space-between;align-items:center;padding:16px 18px;border-bottom:1px solid var(--line)}.mini-brand{display:flex;align-items:center;gap:10px}.modal-head button,.search-head button{min-width:44px;min-height:44px;cursor:pointer}.menu-groups{display:grid;grid-template-columns:1fr 1fr;padding:18px;gap:18px}.menu-groups h2{font-size:13px;color:var(--muted);margin:0 0 6px}.menu-groups a{display:block;padding:9px 0}.menu-groups b,.menu-groups span{display:block}.menu-groups span{font-size:12px;color:var(--muted)}.search-panel{position:fixed;z-index:90;top:74px;left:0;right:0;background:var(--card);border-bottom:1px solid var(--line2);box-shadow:var(--shadow);opacity:0;visibility:hidden;pointer-events:none;transform:translateY(-8px);transition:.2s}.search-panel.open{opacity:1;visibility:visible;pointer-events:auto;transform:none}.search-inner{padding:20px 0 24px}.search-head{display:flex;align-items:center;justify-content:space-between}.search-head h2{font-size:18px;margin:0}.search-field{display:grid;gap:6px;max-width:520px;margin:14px 0}.search-field input{width:100%;height:44px;border-radius:8px;border:1px solid var(--line2);background:var(--deep);color:#fff;padding:0 12px}.preset{display:flex;flex-wrap:wrap;gap:8px}.preset a{padding:8px 12px;border:1px solid var(--line);border-radius:999px}.mobile-nav{display:none}.split-intro{display:grid;grid-template-columns:120px 1fr;gap:28px;align-items:start}.rules-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.muted{color:var(--muted)}
@media(max-width:760px){main{padding-top:74px;padding-bottom:54px}.frame-nav{display:none}.wrap{width:min(100% - 32px,980px)}.section{padding:36px 0}.hero-number{font-size:52px}.quote-grid,.topic-list,.status-list,.periods,.footer-grid,.rules-grid,.split-intro{grid-template-columns:1fr}.filmstrip{grid-template-columns:repeat(2,minmax(0,1fr))}.film-cell{min-height:92px}.film-cell:nth-child(5){grid-column:1/-1}.menu-groups{grid-template-columns:1fr}.search-panel{top:0;bottom:0;overflow:auto;background:var(--deep)}.search-inner{padding-top:24px}.mobile-nav{position:fixed;z-index:60;display:grid;grid-template-columns:repeat(4,1fr);left:0;right:0;bottom:0;min-height:48px;padding-bottom:env(safe-area-inset-bottom);background:var(--deep);border-top:1px solid var(--line2)}.mobile-nav a{display:flex;align-items:center;justify-content:center;min-height:48px;font-size:13px}.site-footer{padding-bottom:86px}.head-link,.menu-btn{padding:0 8px}.brand-logo{max-width:130px}}
