:root{--bg:#1C1C1E;--deep:#141416;--card:#2A2A2E;--card2:#323238;--title:#F2F2F4;--text:#D8D8DC;--muted:#A0A0A8;--faint:#7A7A82;--silver:#C8C8D0;--blue:#6A8AAA;--line:rgba(200,200,208,.16);--strong: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.layer-open{overflow:hidden}a{color:inherit;text-decoration:none}button{font:inherit;color:inherit}.wrap{width:min(980px,calc(100% - 32px));margin:0 auto}.site-head{position:fixed;inset:0 0 auto;z-index:60}.frame-news{height:20px;background:#101012;color:var(--silver);font-size:12px}.news-inner{height:20px;display:flex;align-items:center;justify-content:space-between}.head-text-btn{border:0;background:transparent;padding:0 4px;cursor:pointer}.brand-bar{height:54px;background:var(--bg);border-bottom:1px solid var(--strong)}.brand-inner{height:100%;display:flex;align-items:center;justify-content:space-between}.brand-home{display:inline-flex;align-items:center;min-height:44px}.brand-word{font-weight:700;color:var(--title);font-size:16px;letter-spacing:.08em}.logo-pad{display:inline-flex;align-items:center;justify-content:center;background:#fff;border-radius:6px;padding:4px 8px;line-height:1}.logo-pad img{display:block;height:24px;width:auto;max-width:180px;object-fit:contain}.brand-actions{display:flex;gap:8px;align-items:center}.app-link,.fold-btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 14px;border:1px solid var(--line);border-radius:8px;background:var(--card);color:var(--title);cursor:pointer}.app-link{background:linear-gradient(135deg,#6A8AAA 0%,#3A4A5A 100%)}.frame-track{height:42px;background:var(--card);border-bottom:1px solid var(--line)}.track-inner{height:100%;display:flex;justify-content:center;align-items:stretch}.track-inner a{min-width:112px;display:flex;align-items:center;justify-content:center;font-size:13px}.track-inner a.active{background:var(--blue);color:#fff}.site-main{padding-top:116px;min-height:70vh}.hero,.page-hero{padding:56px 0 34px}.hero-number{font-size:64px;line-height:1;color:var(--faint);font-weight:800;letter-spacing:-.04em}.hero h1,.page-hero h1{font-size:24px;line-height:1.3;color:var(--title);margin:12px 0}.lead{max-width:760px;font-size:16px;color:var(--silver);margin:0}.actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 18px;border-radius:8px;background:linear-gradient(135deg,#6A8AAA 0%,#3A4A5A 100%);color:#fff}.btn.secondary{background:transparent;border:1px solid var(--silver);color:var(--silver)}section.content-section{padding:28px 0;border-top:1px solid var(--line)}.section-title{display:flex;justify-content:space-between;gap:16px;align-items:end;margin-bottom:16px}.section-title h2{font-size:20px;color:var(--title);margin:0}.section-title p{margin:0;color:var(--muted);font-size:13px}.prose{max-width:820px}.prose p{margin:0 0 14px}.quote-pair{display:grid;grid-template-columns:1fr 1fr;gap:16px}.quote-card,.gray-card,.info-card,.status-card,.topic-card{background:var(--card);border:1px solid var(--line);border-radius:8px;padding:20px}.quote-card blockquote{margin:0;color:var(--silver);font-size:16px}.gray-stack{display:grid;gap:14px}.two-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.three-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.film-strip{display:grid;grid-template-columns:repeat(5,1fr);gap:8px}.film-cell{min-height:96px;background:var(--deep);border:1px solid var(--line);border-radius:6px;padding:12px;display:flex;align-items:end;color:var(--muted)}.img-natural{margin:14px 0 18px;display:flex;justify-content:center}.img-natural img{display:block;max-width:100%;width:auto;height:auto;max-height:260px;object-fit:contain}.banner-natural img{max-height:200px}.app-visual img{max-height:320px}.icon-visual img{width:48px;height:48px;object-fit:contain}.periods{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.period{border-left:3px solid var(--blue);padding:14px 16px;background:var(--card)}.status-row{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.status-card strong{display:block;color:var(--title);margin-bottom:6px}.center-product{text-align:center;max-width:720px;margin:0 auto}.center-product .prose{margin:0 auto;text-align:left}.list-lines{display:grid;gap:10px}.list-line{display:grid;grid-template-columns:120px 1fr;gap:16px;padding:14px 0;border-bottom:1px solid var(--line)}.list-line strong{color:var(--title)}.faq-list{display:grid;gap:12px}.faq-item{background:var(--card);border:1px solid var(--line);border-radius:8px;padding:18px}.faq-item h2,.faq-item h3{font-size:16px;color:var(--title);margin:0 0 8px}.faq-item p{margin:0}.site-footer{background:#101012;border-top:1px solid var(--line);padding:36px 0 calc(26px + env(safe-area-inset-bottom));font-size:13px;color:var(--silver)}.footer-grid{display:grid;grid-template-columns:2fr repeat(4,1fr);gap:28px}.footer-grid h2{font-size:13px;color:var(--title);margin:0 0 8px}.footer-grid a{display:block;padding:4px 0;color:var(--silver)}.footer-brand{display:flex;flex-direction:column;align-items:flex-start;gap:6px}.footer-brand p{margin:6px 0 0;color:var(--muted);max-width:360px}.footer-bottom{margin-top:26px;padding-top:16px;border-top:1px solid var(--line);color:var(--faint)}.screen-mask{position:fixed;inset:0;background:rgba(0,0,0,.65);z-index:80;opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.screen-mask.open{opacity:1;visibility:visible;pointer-events:auto}.fold-panel,.search-panel{position:fixed;z-index:90;background:var(--card);box-shadow:var(--shadow);border:1px solid var(--strong);opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.fold-panel.open,.search-panel.open{opacity:1;visibility:visible;pointer-events:auto}.fold-panel{width:min(640px,92vw);max-height:78vh;overflow:auto;left:50%;top:50%;transform:translate(-50%,-50%);border-radius:10px;padding:20px}.fold-top,.search-head{display:flex;justify-content:space-between;align-items:center;gap:12px}.fold-top button,.search-head button{min-height:44px;padding:0 14px;background:var(--deep);border:1px solid var(--line);border-radius:8px;cursor:pointer}.fold-brand{display:flex;gap:10px;align-items:center;color:var(--title)}.fold-groups{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:14px}.fold-groups h2{font-size:14px;color:var(--title);margin:0 0 7px}.fold-groups a{display:grid;padding:9px 0;border-top:1px solid var(--line)}.fold-groups b{font-size:14px;color:var(--title)}.fold-groups span{font-size:12px;color:var(--muted)}.search-panel{top:82px;left:50%;transform:translateX(-50%);width:min(980px,calc(100% - 32px));border-radius:0 0 10px 10px;padding:22px}.search-panel p{color:var(--muted)}.search-links{display:flex;gap:8px;flex-wrap:wrap}.search-links a{min-height:44px;padding:0 16px;border:1px solid var(--line);border-radius:8px;display:inline-flex;align-items:center}.mobile-bottom{display:none}.page-headline{display:grid;grid-template-columns:120px 1fr;gap:28px;align-items:start}.page-index{font-size:58px;font-weight:800;line-height:1;color:var(--faint)}.split-note{display:grid;grid-template-columns:1fr 1fr;gap:18px}.split-note>div{background:var(--card);padding:20px;border-radius:8px;border:1px solid var(--line)}.rule-block{padding:18px 0;border-bottom:1px solid var(--line)}.rule-block h2{margin:0 0 8px;font-size:18px;color:var(--title)}.rule-block p{margin:0 0 10px}.topic-list{display:grid;gap:14px}.topic-card h2,.topic-card h3{margin:0 0 8px;color:var(--title);font-size:17px}.topic-card p{margin:0}.muted{color:var(--muted)}a:focus-visible,button:focus-visible{outline:2px solid var(--silver);outline-offset:3px}.btn:hover,.app-link:hover{filter:brightness(1.08)}
@media(max-width:760px){.wrap{width:min(100% - 32px,980px)}.frame-track{display:none}.site-main{padding-top:74px;padding-bottom:54px}.hero,.page-hero{padding:38px 0 24px}.hero-number{font-size:52px}.quote-pair,.two-grid,.three-grid,.periods,.status-row,.split-note,.footer-grid{grid-template-columns:1fr}.film-strip{grid-template-columns:1fr 1fr}.film-cell{min-height:82px}.page-headline{grid-template-columns:1fr;gap:8px}.page-index{font-size:44px}.list-line{grid-template-columns:1fr;gap:4px}.footer-grid{gap:22px}.mobile-bottom{position:fixed;display:grid;grid-template-columns:repeat(4,1fr);height:48px;left:0;right:0;bottom:0;z-index:55;background:var(--deep);border-top:1px solid var(--line);padding-bottom:env(safe-area-inset-bottom)}.mobile-bottom a{display:flex;align-items:center;justify-content:center;font-size:13px}.mobile-bottom a.active{background:var(--blue);color:#fff}.site-footer{padding-bottom:calc(74px + env(safe-area-inset-bottom))}.fold-groups{grid-template-columns:1fr}.search-panel{inset:0;transform:none;width:auto;border-radius:0;padding:24px 16px;overflow:auto}.search-links{display:grid;grid-template-columns:1fr 1fr}.brand-actions{gap:6px}.app-link,.fold-btn{padding:0 11px}.brand-word{font-size:15px}.img-natural img{max-height:220px}}
@media(max-width:420px){.film-strip{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.brand-actions .app-link{font-size:13px}}

.center-actions{justify-content:center}