:root{--bg:#0D0D0D;--deep:#070707;--surface:#171717;--surface2:#222222;--title:#F2F2F2;--text:#C8C8C8;--muted:#9A9A9A;--faint:#6E6E6E;--silver:#C8C8C8;--bright:#E8E8E8;--ink:#1A1A1A;--red:#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;--top:122px}
*{box-sizing:border-box}html{scroll-behavior:smooth;background:var(--bg)}body{margin:0;background:var(--bg);color:var(--text);font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;font-size:15px;line-height:1.7;overflow-x:hidden}a{color:inherit;text-decoration:none}button,input{font:inherit}button{color:inherit}.shell{width:min(calc(100% - 32px),var(--max));margin:0 auto}.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}.skip-link{position:fixed;left:16px;top:-60px;z-index:1000;background:var(--bright);color:var(--bg);padding:10px 14px;border-radius:8px}.skip-link:focus{top:10px}
.site-header{position:fixed;inset:0 0 auto 0;z-index:100;background:var(--bg)}.ink-line{height:22px;background:var(--deep);border-bottom:1px solid var(--border)}.ink-line-inner{height:22px;display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--silver);letter-spacing:.04em}.text-button{border:0;background:transparent;padding:0 4px;height:22px;cursor:pointer;color:var(--bright)}.material-bar{height:60px;background:var(--ink);border-bottom:1px solid var(--border-strong)}.material-bar-inner{height:60px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:16px}.brand-link{justify-self:start;height:44px;display:flex;align-items:center;min-width:44px}.brand-logo,.footer-logo,.drawer-brand img{height:28px;width:auto;max-width:176px;object-fit:contain}.brand-fallback{font-weight:700;font-size:16px;color:var(--bright);letter-spacing:.12em}.drawer-open,.app-link{height:44px;min-width:92px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;gap:8px;cursor:pointer}.drawer-open{border:1px solid var(--border-strong);background:#111;color:var(--bright)}.app-link{justify-self:end;background:linear-gradient(135deg,#E8E8E8 0%,#C8C8C8 55%,#8A8A8A 100%);color:#0D0D0D;font-weight:700;padding:0 16px}.case-tabs{height:40px;background:#101010;border-bottom:1px solid var(--border)}.case-tabs-inner{height:40px;display:flex;align-items:stretch;justify-content:center;gap:8px}.case-tabs a{min-width:98px;display:flex;align-items:center;justify-content:center;font-size:13px;color:var(--silver);border-inline:1px solid transparent}.case-tabs a:hover,.case-tabs a:focus-visible{background:#181818}.case-tabs a.is-current{background:var(--bright);color:var(--bg);font-weight:700}.site-main{padding-top:calc(var(--top) + 28px);min-height:60vh}.page-section{padding:26px 0}.page-section+.page-section{border-top:1px solid var(--border)}.page-head{padding:18px 0 24px}.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--silver);font-size:12px;letter-spacing:.14em;text-transform:uppercase}.eyebrow:before{content:"";width:28px;height:1px;background:var(--red)}h1,h2,h3{color:var(--title);margin:0 0 12px}h1{font-size:24px;line-height:1.3}h2{font-size:20px;line-height:1.4}h3{font-size:16px;line-height:1.45}.lead{max-width:780px;color:var(--silver);font-size:16px}.page-copy{max-width:880px}.page-copy p,.card p,.text-card p,.timeline-item p,.policy-block p{margin:0 0 14px;color:var(--text)}.subtle{color:var(--muted)}.media-slot{width:100%;height:200px;background:var(--ink);border:1px solid var(--border);border-radius:var(--radius);display:flex;align-items:center;justify-content:center;overflow:hidden}.media-slot img{display:block;width:100%;height:100%;object-fit:contain;object-position:center}.hero-media{height:260px}.feature-media{height:180px}.app-media{height:min(360px,65vw)}.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.two-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.card,.text-card,.policy-block,.shelf-row,.note-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:18px;box-shadow:0 1px 0 rgba(255,255,255,.02)}.card:hover{border-color:var(--border-strong)}.card .media-slot{margin-bottom:16px}.button-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}.btn{min-height:42px;padding:0 16px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;font-size:14px;white-space:nowrap;border:1px solid var(--border-strong)}.btn-primary{background:linear-gradient(135deg,#E8E8E8 0%,#C8C8C8 55%,#8A8A8A 100%);color:#0D0D0D;font-weight:700}.btn-secondary{background:#111;color:var(--bright)}.btn:hover{transform:translateY(-1px)}a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--bright);outline-offset:3px}.hero-copy{padding-top:18px;max-width:800px}.hero-copy .brand-kicker{font-size:13px;color:var(--muted);letter-spacing:.18em}.number-list{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin:18px 0}.number-item{background:var(--surface2);border:1px solid var(--border);border-radius:12px;padding:16px;min-height:112px}.number-item strong{display:block;font-size:28px;line-height:1;color:var(--bright);font-weight:500;margin-bottom:12px}.number-item span{display:block;color:var(--title);font-weight:700}.shelf{display:grid;gap:10px}.shelf-row{display:grid;grid-template-columns:80px 1fr auto;align-items:center;gap:16px}.shelf-mark{font-size:12px;color:var(--muted);letter-spacing:.08em}.shelf-row b{color:var(--title)}.shelf-row a{color:var(--bright);border-bottom:1px solid var(--border-strong)}.proof-list{counter-reset:proof;display:grid;gap:12px}.proof-item{counter-increment:proof;display:grid;grid-template-columns:56px 1fr;gap:14px;padding:16px;background:var(--surface);border:1px solid var(--border);border-radius:12px}.proof-item:before{content:"0" counter(proof);font-size:22px;color:var(--bright)}.timeline{position:relative;display:grid;gap:14px}.timeline:before{content:"";position:absolute;left:18px;top:12px;bottom:12px;width:1px;background:var(--border-strong)}.timeline-item{position:relative;margin-left:46px;padding:16px 18px;background:var(--surface);border:1px solid var(--border);border-radius:12px}.timeline-item:before{content:"";position:absolute;left:-34px;top:22px;width:9px;height:9px;border-radius:50%;background:var(--bright);box-shadow:0 0 0 5px var(--bg)}.status{display:inline-flex;min-height:28px;padding:0 10px;align-items:center;border:1px solid var(--border-strong);border-radius:999px;color:var(--bright);font-size:12px;margin-bottom:8px}.memo-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.memo-card{background:linear-gradient(180deg,#1b1b1b,#121212);border:1px solid var(--border);border-radius:12px;padding:18px}.memo-card small{color:var(--muted);display:block;margin-bottom:8px}.faq-grid{display:grid;gap:12px}.faq-item{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:18px}.faq-item h2,.faq-item h3{margin-bottom:8px}.tag-row{display:flex;flex-wrap:wrap;gap:8px}.tag{padding:6px 10px;border:1px solid var(--border);border-radius:999px;color:var(--silver);font-size:12px}.policy-stack{display:grid;gap:14px}.policy-block ul,.text-card ul{margin:10px 0 0;padding-left:20px}.policy-block li,.text-card li{margin:7px 0}.notice{border-left:3px solid var(--red);background:#151212;padding:14px 16px;border-radius:0 10px 10px 0;color:var(--silver)}.split-lead{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(280px,.7fr);gap:20px;align-items:start}.compact-list{display:grid;gap:10px}.compact-list a{display:flex;justify-content:space-between;gap:14px;align-items:center;padding:13px 15px;background:var(--surface);border:1px solid var(--border);border-radius:10px}.compact-list span{color:var(--muted);font-size:13px}.site-footer{margin-top:34px;background:var(--deep);border-top:1px solid var(--border-strong);padding:30px 0 calc(30px + env(safe-area-inset-bottom))}.footer-grid{display:grid;grid-template-columns:2fr repeat(4,1fr);gap:24px}.footer-brand p{max-width:440px;color:var(--muted);font-size:13px}.footer-brand-row{display:flex;align-items:center;gap:12px;margin-bottom:12px}.footer-brand-row strong,.footer-brand-row span{display:block}.footer-brand-row strong{color:var(--title)}.footer-brand-row span{font-size:12px;color:var(--muted);letter-spacing:.12em}.footer-col h2{font-size:13px;color:var(--bright);margin-bottom:8px}.footer-col a{display:block;color:var(--silver);font-size:13px;padding:4px 0}.footer-col a:hover{text-decoration:underline}.footer-note,.copyright{font-size:13px;color:var(--muted);border-top:1px solid var(--border);margin-top:20px;padding-top:16px}.copyright{margin-top:10px;color:var(--silver)}.ui-mask{position:fixed;inset:0;background:rgba(0,0,0,.68);z-index:180;visibility:hidden;opacity:0;pointer-events:none;transition:.2s}.ui-mask.is-visible{visibility:visible;opacity:1;pointer-events:auto}.drawer-panel{position:fixed;z-index:200;left:0;top:0;bottom:0;width:400px;max-width:86vw;background:#0b0b0b;border-right:1px solid var(--border-strong);transform:translateX(-102%);visibility:hidden;pointer-events:none;transition:transform .24s ease,visibility .24s;box-shadow:var(--shadow)}.drawer-panel.is-open{transform:none;visibility:visible;pointer-events:auto}.drawer-head{height:72px;display:flex;align-items:center;justify-content:space-between;padding:0 18px;border-bottom:1px solid var(--border)}.drawer-brand{display:flex;align-items:center;gap:10px}.drawer-brand strong,.drawer-brand small{display:block}.drawer-brand small{font-size:10px;color:var(--muted);letter-spacing:.12em}.drawer-close,.search-close{width:44px;height:44px;border:1px solid var(--border);background:#131313;color:var(--bright);border-radius:10px;font-size:24px;cursor:pointer}.drawer-scroll{height:calc(100% - 72px);overflow:auto;padding:16px}.drawer-group{margin-bottom:18px}.drawer-group h2{font-size:12px;color:var(--muted);letter-spacing:.14em;margin:0 0 8px}.drawer-group a{display:block;padding:10px 12px;border-radius:10px;border:1px solid transparent}.drawer-group a:hover{background:var(--surface);border-color:var(--border)}.drawer-group strong{display:block;color:var(--title);font-size:14px}.drawer-group span{display:block;color:var(--muted);font-size:12px;line-height:1.55}.search-panel{position:fixed;z-index:210;left:0;right:0;top:82px;visibility:hidden;opacity:0;pointer-events:none;transform:translateY(-8px);transition:.2s}.search-panel.is-open{visibility:visible;opacity:1;pointer-events:auto;transform:none}.search-card{width:min(calc(100% - 32px),760px);margin:0 auto;background:var(--ink);border:1px solid var(--border-strong);border-radius:14px;box-shadow:var(--shadow);padding:18px}.search-head{display:flex;justify-content:space-between;align-items:center;gap:16px}.search-head strong,.search-head span{display:block}.search-head span{font-size:13px;color:var(--muted)}.search-field{display:block;margin:16px 0}.search-field input{width:100%;height:46px;background:#0e0e0e;color:var(--bright);border:1px solid var(--border-strong);border-radius:10px;padding:0 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@media (max-width:900px){.card-grid{grid-template-columns:1fr}.two-grid,.memo-grid,.split-lead{grid-template-columns:1fr}.footer-grid{grid-template-columns:repeat(2,1fr)}.footer-brand{grid-column:1/-1}.number-list{grid-template-columns:repeat(2,1fr)}.shelf-row{grid-template-columns:64px 1fr}.shelf-row a{grid-column:2}.case-tabs{display:none}:root{--top:82px}.site-main{padding-top:calc(var(--top) + 18px)}}
@media (max-width:640px){body{padding-bottom:calc(48px + env(safe-area-inset-bottom))}.shell{width:calc(100% - 32px)}.ink-line-inner{font-size:11px}.material-bar-inner{grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);gap:8px}.brand-logo{max-width:112px;height:26px}.brand-fallback{font-size:15px}.drawer-open,.app-link{min-width:0;padding:0 11px}.drawer-open span:first-child{display:inline}.hero-media{height:260px}.feature-media{height:180px}.page-section{padding:22px 0}.number-list{grid-template-columns:1fr 1fr}.search-panel{inset:0;top:0;background:#090909;padding:16px;overflow:auto}.search-card{width:100%;min-height:100%;border:0;border-radius:0;margin:0;padding:8px 0;background:#090909;box-shadow:none}.search-presets{grid-template-columns:1fr 1fr}.mobile-bottom{position:fixed;z-index:140;display:grid;grid-template-columns:repeat(5,1fr);left:0;right:0;bottom:0;height:calc(48px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:#090909;border-top:1px solid var(--border-strong)}.mobile-bottom a{display:flex;align-items:center;justify-content:center;font-size:12px;color:var(--silver)}.mobile-bottom a.is-current{background:var(--bright);color:var(--bg);font-weight:700}.footer-grid{grid-template-columns:1fr 1fr}.footer-col a{padding:6px 0}.shelf-row{grid-template-columns:1fr}.shelf-row a{grid-column:auto;justify-self:start}.site-footer{padding-bottom:34px}.proof-item{grid-template-columns:44px 1fr}.card,.text-card,.policy-block{padding:16px}}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}