:root{
  --bg:#0D0D0D;--deep:#070707;--panel:#171717;--panel2:#222222;--title:#F2F2F2;--text:#C8C8C8;--muted:#9A9A9A;--soft:#6E6E6E;--silver:#C8C8C8;--bright:#E8E8E8;--ink:#1A1A1A;--mistred:#B85A5A;--border:rgba(232,232,232,.12);--border-strong:rgba(232,232,232,.36);--shadow:0 12px 28px rgba(0,0,0,.45);--radius:12px;--max:1120px
}
*{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}body.locked{overflow:hidden}a{color:inherit;text-decoration:none}button,input{font:inherit}button{color:inherit}.site-header{position:fixed;inset:0 0 auto 0;z-index:90}.inkline{height:22px;background:var(--deep);border-bottom:1px solid var(--border);font-size:12px;color:var(--silver)}.bar-inner{max-width:var(--max);height:100%;margin:0 auto;padding:0 20px}.inkline-inner,.mainbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px}.text-button,.drawer-trigger,.close-button{background:transparent;border:1px solid transparent;cursor:pointer}.text-button{min-height:22px;padding:0 6px;color:var(--bright)}.mainbar{height:60px;background:var(--ink);border-bottom:1px solid var(--border-strong)}.brand-link,.app-link,.drawer-trigger{min-height:44px;display:inline-flex;align-items:center;justify-content:center}.brand-link{min-width:100px;justify-content:flex-start}.brand-logo,.drawer-logo,.footer-logo{height:28px;max-width:160px;object-fit:contain;object-position:center}.brand-text{font-size:16px;font-weight:700;color:var(--bright)}.drawer-trigger{padding:0 22px;border:1px solid var(--border-strong);border-radius:999px;background:var(--deep);color:var(--bright)}.app-link{min-width:100px;justify-content:flex-end;color:var(--bright)}.subnav{height:40px;background:var(--deep);border-bottom:1px solid var(--border)}.subnav-inner{height:100%;max-width:560px;margin:0 auto;display:grid;grid-template-columns:repeat(3,1fr);align-items:stretch;text-align:center;font-size:13px}.subnav a{display:flex;align-items:center;justify-content:center;border-left:1px solid transparent;border-right:1px solid transparent}.subnav a:hover,.subnav a:focus-visible{background:var(--panel2);color:var(--title)}.subnav a.is-active{background:var(--bright);color:var(--bg)}
.site-main{padding-top:122px;min-height:70vh}.page-shell{max-width:var(--max);margin:0 auto;padding:42px 20px 64px}.hero-copy{max-width:820px}.eyebrow{margin:0 0 8px;color:var(--mistred);font-size:13px;letter-spacing:.08em}.hero-copy h1,.page-header h1{font-size:24px;line-height:1.3;color:var(--title);margin:0 0 14px}.hero-copy p,.page-header p{margin:0;color:var(--muted)}h2{font-size:20px;line-height:1.4;color:var(--title)}h3{font-size:16px;line-height:1.45;color:var(--bright)}p{margin:0 0 1em}.section{margin-top:46px}.section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:18px}.section-head h2{margin:0}.section-head p{margin:0;max-width:620px;color:var(--muted);font-size:14px}.image-slot{width:100%;background:var(--ink);border:1px solid var(--border);border-radius:var(--radius);display:flex;align-items:center;justify-content:center;overflow:hidden}.image-slot img{width:100%;height:100%;object-fit:contain;object-position:center}.banner-slot{height:260px}.card-image{height:180px}.feature-image{height:200px}.app-image{height:360px}.buttons{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}.button{min-height:42px;padding:9px 18px;display:inline-flex;align-items:center;justify-content:center;border-radius:10px;font-size:14px;font-weight:700;white-space:nowrap;border:1px solid var(--border-strong)}.button.primary{background:linear-gradient(135deg,#E8E8E8 0%,#C8C8C8 55%,#8A8A8A 100%);color:#0D0D0D;border-color:transparent}.button.secondary{background:var(--deep);color:var(--bright)}.button:hover{transform:translateY(-1px)}a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--bright);outline-offset:2px}.cover-copy{padding:24px 0 0}.cover-copy h1{margin-bottom:10px}.brand-kicker{color:var(--muted);font-size:13px}.lead{max-width:800px}.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.card{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow)}.card h3{margin:12px 0 8px}.card p{color:var(--muted)}.card .more{display:inline-flex;min-height:44px;align-items:center;color:var(--bright);font-weight:700}.feature-box{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:22px;align-items:stretch}.feature-copy{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:24px}.number-list{display:grid;gap:12px;margin-top:18px}.number-item{display:grid;grid-template-columns:56px 1fr;gap:14px;padding:14px 0;border-top:1px solid var(--border)}.number-item:first-child{border-top:0}.number-item b{color:var(--bright);font-size:18px}.number-item p{margin:2px 0 0;color:var(--muted)}.shelf{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}.shelf-item{background:var(--panel);border:1px solid var(--border);border-radius:10px;padding:16px;min-height:150px}.shelf-item span{font-size:12px;color:var(--mistred)}.shelf-item h3{margin:8px 0}.shelf-item p{font-size:14px;color:var(--muted)}.timeline{position:relative;padding-left:28px}.timeline:before{content:"";position:absolute;left:8px;top:8px;bottom:8px;width:1px;background:var(--border-strong)}.timeline-item{position:relative;padding:0 0 28px}.timeline-item:before{content:"";position:absolute;left:-25px;top:8px;width:9px;height:9px;border-radius:50%;background:var(--bright);box-shadow:0 0 0 4px var(--bg)}.timeline-item h3{margin:0 0 6px}.status{display:inline-block;margin-bottom:6px;padding:2px 8px;border:1px solid var(--border-strong);border-radius:999px;font-size:12px;color:var(--bright)}.memo-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.memo{background:var(--panel2);border-left:3px solid var(--silver);border-radius:10px;padding:18px}.memo h3{margin:0 0 8px}.policy-box,.text-panel{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:22px}.text-panel+.text-panel{margin-top:16px}.text-panel h2,.policy-box h2{margin-top:0}.text-panel p:last-child,.policy-box p:last-child{margin-bottom:0}.page-header{max-width:820px;margin-bottom:34px}.article-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.article-card{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:22px}.article-card .num{font-size:28px;color:var(--silver);font-weight:800;line-height:1}.article-card h2{margin:10px 0}.article-card p{color:var(--muted)}.method-list{counter-reset:item;display:grid;gap:14px}.method-item{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:20px 20px 20px 74px;position:relative}.method-item:before{counter-increment:item;content:counter(item,decimal-leading-zero);position:absolute;left:20px;top:18px;font-size:20px;color:var(--bright);font-weight:800}.method-item h2{margin:0 0 8px}.list-lines{display:grid;gap:12px}.list-line{display:grid;grid-template-columns:120px 1fr;gap:18px;border-top:1px solid var(--border);padding:16px 0}.list-line:first-child{border-top:0}.list-line strong{color:var(--bright)}.faq{display:grid;gap:12px}.faq-item{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:20px}.faq-item h2{font-size:16px;margin:0 0 10px}.faq-item p{margin:0;color:var(--muted)}.notice{border-left:3px solid var(--mistred);padding:14px 16px;background:var(--panel2);border-radius:8px;color:var(--text)}
.site-footer{background:var(--deep);border-top:1px solid var(--border-strong);font-size:13px;color:var(--silver)}.footer-inner{max-width:var(--max);margin:0 auto;padding:34px 20px 82px}.footer-brand{display:flex;align-items:center;gap:12px}.footer-brand div,.drawer-brand div{display:flex;flex-direction:column;line-height:1.3}.footer-brand strong,.drawer-brand strong{color:var(--bright);font-size:16px}.footer-brand span,.drawer-brand span{color:var(--muted);font-size:11px}.footer-groups{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;margin-top:24px}.footer-groups section{display:flex;flex-direction:column;gap:7px}.footer-groups h2{font-size:13px;margin:0 0 4px;color:var(--bright)}.footer-groups a{color:var(--muted);min-height:30px;display:flex;align-items:center}.footer-groups a:hover{color:var(--bright)}.footer-note{margin:28px 0 8px;padding-top:18px;border-top:1px solid var(--border);color:var(--muted)}.copyright{margin:0;color:var(--soft)}
.overlay{position:fixed;inset:0;background:rgba(0,0,0,.68);opacity:0;visibility:hidden;pointer-events:none;z-index:120;transition:.22s ease}.overlay.is-active{opacity:1;visibility:visible}.drawer{position:fixed;z-index:130;left:0;top:0;bottom:0;width:400px;max-width:86vw;background:var(--deep);border-right:1px solid var(--border-strong);transform:translateX(-103%);visibility:hidden;pointer-events:none;transition:transform .24s ease,visibility .24s ease;box-shadow:var(--shadow);display:flex;flex-direction:column}.drawer-open .drawer{transform:translateX(0);visibility:visible;pointer-events:auto}.drawer-head{height:72px;padding:0 18px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--border)}.drawer-brand{display:flex;align-items:center;gap:10px}.close-button{min-height:44px;padding:0 12px;color:var(--bright);border-color:var(--border);border-radius:8px}.drawer-scroll{overflow:auto;padding:14px 18px 30px}.drawer-group{padding:8px 0 14px;border-bottom:1px solid var(--border)}.drawer-group:last-child{border-bottom:0}.drawer-group h2{font-size:13px;color:var(--soft);margin:4px 0 8px}.drawer-group a{display:grid;grid-template-columns:94px 1fr;gap:10px;min-height:56px;padding:8px 0;border-top:1px solid rgba(232,232,232,.06)}.drawer-group a:first-of-type{border-top:0}.drawer-group strong{color:var(--bright)}.drawer-group span{font-size:12px;color:var(--muted)}
.search-panel{position:fixed;z-index:135;left:0;right:0;top:82px;visibility:hidden;opacity:0;pointer-events:none;transition:.2s ease}.search-open .search-panel{visibility:visible;opacity:1;pointer-events:auto}.search-card{max-width:760px;margin:16px auto;background:var(--ink);border:1px solid var(--border-strong);box-shadow:var(--shadow);border-radius:14px;padding:20px}.search-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}.search-head strong{color:var(--bright)}.search-card label{display:block;margin-bottom:7px;color:var(--muted)}.search-card input{width:100%;height:46px;border-radius:10px;border:1px solid var(--border-strong);background:var(--deep);color:var(--bright);padding:0 14px}.search-links{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:14px}.search-links a{min-height:44px;display:flex;align-items:center;justify-content:center;background:var(--panel);border:1px solid var(--border);border-radius:9px;color:var(--bright)}.search-empty{margin:14px 0 0;color:var(--muted)}.mobile-bottom{display:none}
@media (max-width:800px){.bar-inner{padding:0 16px}.subnav{display:none}.site-main{padding-top:82px;padding-bottom:60px}.mainbar-inner{display:grid;grid-template-columns:1fr auto 1fr;gap:8px}.brand-link{min-width:0}.app-link{min-width:0;justify-content:flex-end}.drawer-trigger{padding:0 16px}.page-shell{padding:30px 16px 46px}.grid-3,.grid-2,.article-grid,.memo-grid{grid-template-columns:1fr}.feature-box{grid-template-columns:1fr}.shelf{grid-template-columns:repeat(2,minmax(0,1fr))}.footer-groups{grid-template-columns:repeat(2,minmax(0,1fr))}.footer-inner{padding:30px 16px calc(74px + env(safe-area-inset-bottom))}.mobile-bottom{position:fixed;display:grid;grid-template-columns:repeat(5,1fr);left:0;right:0;bottom:0;z-index:105;height:calc(48px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:var(--deep);border-top:1px solid var(--border-strong);font-size:12px}.mobile-bottom a{display:flex;align-items:center;justify-content:center;min-width:0;min-height:48px}.mobile-bottom a.is-active{background:var(--bright);color:var(--bg)}.drawer-open .mobile-bottom,.search-open .mobile-bottom{z-index:100}.search-panel{inset:0;top:0;background:var(--deep);padding:0;overflow:auto}.search-card{margin:0;min-height:100vh;max-width:none;border:0;border-radius:0;padding:22px 16px calc(72px + env(safe-area-inset-bottom));box-shadow:none}.search-links{grid-template-columns:repeat(2,1fr)}.section{margin-top:36px}.banner-slot{height:260px}.app-image{height:340px}.list-line{grid-template-columns:1fr;gap:4px}.section-head{align-items:start;flex-direction:column;gap:6px}}
@media (max-width:480px){.shelf{grid-template-columns:1fr}.footer-groups{grid-template-columns:1fr 1fr}.hero-copy h1,.page-header h1{font-size:24px}.feature-copy{padding:20px}.article-card,.text-panel,.policy-box{padding:18px}}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}

.shelf-spaced{margin-top:16px}.app-title-row{display:flex;align-items:center;gap:12px;margin-bottom:12px}.app-icon-slot{width:56px;height:56px;flex:0 0 auto}.flush-heading{margin:0}.app-subline{margin:2px 0 0;color:var(--muted)}