:root{--bg:#0D0D0D;--deep:#070707;--panel:#171717;--panel2:#222;--title:#F2F2F2;--text:#C8C8C8;--muted:#9A9A9A;--dim:#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);--max:1120px}
*{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;padding-top:122px}body.is-locked{overflow:hidden}.shell{width:min(calc(100% - 32px),var(--max));margin:0 auto}.skip-link{position:fixed;left:12px;top:-60px;z-index:1000;background:var(--bright);color:#0D0D0D;padding:10px 14px;border-radius:8px}.skip-link:focus{top:8px}.ink-line{position:fixed;z-index:100;left:0;right:0;top:0;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)}.plain-action,.drawer-open,.drawer-close,.search-close{font:inherit;color:inherit;background:none;border:0;cursor:pointer}.plain-action{height:22px;padding:0 8px;color:var(--bright)}.material-bar{position:fixed;z-index:99;left:0;right:0;top:22px;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;display:inline-flex;min-height:44px;align-items:center;color:var(--title);font-size:16px;font-weight:700;text-decoration:none}.brand-link img{display:block;height:28px;width:auto;max-width:150px;object-fit:contain}.drawer-open{min-width:92px;min-height:44px;border:1px solid var(--border-strong);border-radius:10px;background:#111;color:var(--bright);font-size:14px}.drawer-open span{margin-right:7px}.app-link{justify-self:end;display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 16px;border-radius:10px;background:linear-gradient(135deg,#E8E8E8 0%,#C8C8C8 55%,#8A8A8A 100%);color:#0D0D0D;text-decoration:none;font-weight:700;font-size:14px}.case-tabs{position:fixed;z-index:98;left:0;right:0;top:82px;height:40px;background:#111;border-bottom:1px solid var(--border)}.case-tabs-inner{height:40px;display:flex;align-items:center;justify-content:center;gap:8px}.case-tabs a{display:inline-flex;align-items:center;justify-content:center;min-width:90px;height:32px;padding:0 16px;border-radius:9px;color:var(--silver);text-decoration:none;font-size:13px}.case-tabs a.is-current{background:var(--bright);color:#0D0D0D}.page-main{min-height:60vh}.page-wrap{width:min(calc(100% - 32px),var(--max));margin:0 auto;padding:44px 0 72px}.hero-title{margin:0 0 14px;color:var(--title);font-size:24px;line-height:1.3;letter-spacing:.01em}.lead{max-width:820px;color:var(--text);margin:0 0 22px}.eyebrow{display:inline-flex;margin-bottom:12px;color:var(--bright);font-size:12px;letter-spacing:.14em;text-transform:uppercase}.section{margin-top:42px}.section h2{margin:0 0 16px;color:var(--title);font-size:20px;line-height:1.4}.section h3{margin:0 0 8px;color:var(--bright);font-size:16px}.section p{margin:0 0 12px;color:var(--text)}.muted{color:var(--muted)}.media-slot{width:100%;height:200px;background:var(--ink);border:1px solid var(--border);border-radius:14px;overflow:hidden;display:flex;align-items:center;justify-content:center}.media-slot img{display:block;width:100%;height:100%;object-fit:contain;object-position:center}.media-slot.is-empty::after{content:"";width:24%;height:1px;background:var(--border-strong)}.banner-slot{height:260px}.app-slot{height:360px;max-width:420px;margin-inline:auto}.feature-slot{height:180px}.logo-mini{width:48px;height:48px;border-radius:12px}.home-cover{padding-top:28px}.cover-caption{padding:24px 0 4px}.brand-kicker{font-size:13px;color:var(--muted);letter-spacing:.14em}.cover-caption h1{font-size:24px;line-height:1.3;color:var(--title);margin:8px 0}.cover-caption .intro{max-width:820px}.button-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}.btn{min-height:42px;display:inline-flex;align-items:center;justify-content:center;padding:0 18px;border-radius:10px;text-decoration:none;font-size:14px;font-weight:700}.btn-primary{background:linear-gradient(135deg,#E8E8E8 0%,#C8C8C8 55%,#8A8A8A 100%);color:#0D0D0D}.btn-secondary{background:#111;border:1px solid var(--border-strong);color:var(--bright)}a:hover,.plain-action:hover,.drawer-open:hover,.drawer-close:hover,.search-close:hover{filter:brightness(1.08)}a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--bright);outline-offset:3px}.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.card{background:var(--panel);border:1px solid var(--border);border-radius:14px;padding:16px;box-shadow:var(--shadow)}.card .media-slot{margin-bottom:14px}.card p:last-child{margin-bottom:0}.two-col{display:grid;grid-template-columns:1.05fr .95fr;gap:24px;align-items:start}.number-list{display:grid;gap:12px}.number-row{display:grid;grid-template-columns:54px 1fr;gap:16px;padding:18px;background:var(--panel);border:1px solid var(--border);border-radius:12px}.number{font-size:22px;color:var(--bright);font-weight:700}.rack{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}.rack a,.rack-item{display:block;min-height:128px;padding:16px;background:var(--panel);border:1px solid var(--border);border-radius:12px;color:var(--text);text-decoration:none}.rack small{color:var(--muted)}.timeline{position:relative;margin-left:8px;padding-left:28px;border-left:1px solid var(--border-strong)}.timeline-item{position:relative;padding:0 0 26px}.timeline-item::before{content:"";position:absolute;left:-34px;top:7px;width:11px;height:11px;border-radius:50%;background:var(--bright);box-shadow:0 0 0 5px #151515}.status{display:inline-flex;align-items:center;min-height:28px;padding:0 10px;border-radius:99px;background:#202020;border:1px solid var(--border);color:var(--bright);font-size:12px}.memo-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.memo{padding:18px;background:var(--panel);border:1px solid var(--border);border-radius:12px}.terms{display:grid;gap:16px}.term{padding:20px;background:var(--panel);border-left:3px solid var(--silver);border-radius:0 12px 12px 0}.faq-list{display:grid;gap:14px}.faq-item{padding:18px;background:var(--panel);border:1px solid var(--border);border-radius:12px}.faq-item h2,.faq-item h3{margin-top:0}.notice{padding:18px 20px;background:linear-gradient(135deg,#1d1d1d,#141414);border:1px solid var(--border-strong);border-radius:12px}.red-mark{color:#d18a8a}.site-footer{background:var(--deep);border-top:1px solid var(--border);color:var(--silver)}.footer-top{padding:36px 0 86px}.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:24px}.footer-brand img{height:28px;width:auto;max-width:150px;object-fit:contain}.footer-brand strong{color:var(--title)}.footer-brand span{font-size:12px;color:var(--muted);letter-spacing:.12em}.footer-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}.footer-grid h2{font-size:13px;color:var(--bright);margin:0 0 10px}.footer-grid a{display:block;width:max-content;max-width:100%;color:var(--silver);font-size:13px;text-decoration:none;padding:3px 0}.footer-note,.copyright{font-size:13px;color:var(--muted)}.footer-note{margin:28px 0 8px;max-width:900px}.copyright{margin:0}.page-mask{position:fixed;z-index:200;inset:0;background:rgba(0,0,0,.64);opacity:0;pointer-events:none;transition:opacity .18s}.page-mask.is-visible{opacity:1;pointer-events:auto}.material-drawer{position:fixed;z-index:220;left:0;top:0;bottom:0;width:400px;max-width:86vw;background:#101010;border-right:1px solid var(--border-strong);box-shadow:var(--shadow);transform:translateX(-103%);visibility:hidden;pointer-events:none;transition:transform .22s ease,visibility .22s;overflow-y:auto;overscroll-behavior:contain}.material-drawer.is-open{transform:translateX(0);visibility:visible;pointer-events:auto}.drawer-head{position:sticky;top:0;background:#101010;display:flex;align-items:center;justify-content:space-between;gap:10px;padding:16px;border-bottom:1px solid var(--border);z-index:2}.drawer-brand{display:flex;align-items:center;gap:10px}.drawer-brand img{height:28px;width:auto;max-width:130px;object-fit:contain}.drawer-brand div{display:flex;flex-direction:column}.drawer-brand span{font-size:11px;color:var(--muted)}.drawer-close,.search-close{min-width:56px;min-height:44px;border:1px solid var(--border-strong);border-radius:10px}.drawer-groups{padding:8px 16px 32px}.drawer-groups section{padding:12px 0}.drawer-groups h2{font-size:12px;color:var(--muted);letter-spacing:.12em;margin:0 0 8px}.drawer-groups a{display:block;padding:12px;border-radius:10px;text-decoration:none;color:var(--text)}.drawer-groups a:hover{background:#1a1a1a}.drawer-groups strong,.drawer-groups span{display:block}.drawer-groups span{font-size:12px;color:var(--muted);margin-top:2px}.search-layer{position:fixed;z-index:230;left:0;right:0;top:82px;visibility:hidden;pointer-events:none;opacity:0;transition:opacity .18s,visibility .18s}.search-layer.is-open{visibility:visible;pointer-events:auto;opacity:1}.search-card{width:min(calc(100% - 32px),760px);margin:16px auto;background:var(--ink);border:1px solid var(--border-strong);border-radius:14px;box-shadow:var(--shadow);padding:18px}.search-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;color:var(--bright)}.search-card label{display:block;color:var(--muted);font-size:13px;margin-bottom:8px}.search-card input{width:100%;height:46px;border:1px solid var(--border-strong);border-radius:10px;background:#0c0c0c;color:var(--bright);padding:0 14px;font:inherit}.search-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}.search-links a{min-height:40px;display:inline-flex;align-items:center;padding:0 14px;border-radius:10px;background:#101010;border:1px solid var(--border);color:var(--silver);text-decoration:none}.search-empty{font-size:13px;color:var(--muted);margin:12px 0 0}.mobile-bottom{display:none}.soft-divider{height:1px;background:var(--border);margin:30px 0}.prose-columns{columns:2;column-gap:30px}.prose-columns p{break-inside:avoid}.tagline{color:var(--bright);font-size:16px}.section-index{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:10px}.section-index .index-item{padding:14px;background:var(--panel);border-radius:10px;border:1px solid var(--border)}.section-index b{display:block;color:var(--bright);font-size:18px}.article-list{display:grid;gap:14px}.article-item{padding:18px 18px 18px 22px;background:var(--panel);border:1px solid var(--border);border-radius:12px;position:relative}.article-item::before{content:"";position:absolute;left:0;top:16px;bottom:16px;width:2px;background:var(--silver)}
@media (max-width:820px){body{padding-top:82px;padding-bottom:56px}.case-tabs{display:none}.page-wrap{padding-top:30px}.material-bar-inner{grid-template-columns:1fr auto 1fr;gap:8px}.brand-link img{max-width:112px}.drawer-open{min-width:78px}.app-link{padding:0 12px}.card-grid,.rack,.footer-grid,.section-index{grid-template-columns:repeat(2,minmax(0,1fr))}.two-col{grid-template-columns:1fr}.memo-grid{grid-template-columns:1fr}.prose-columns{columns:1}.search-layer{top:0;bottom:0;background:#0b0b0b;overflow:auto}.search-card{width:100%;min-height:100%;margin:0;border:0;border-radius:0;padding:24px 16px 80px}.mobile-bottom{position:fixed;z-index:150;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:#0b0b0b;border-top:1px solid var(--border-strong)}.mobile-bottom a{display:flex;align-items:center;justify-content:center;min-width:0;color:var(--silver);text-decoration:none;font-size:12px}.mobile-bottom a.is-current{background:var(--bright);color:#0D0D0D}.footer-top{padding-bottom:34px}}
@media (max-width:560px){.shell,.page-wrap{width:min(calc(100% - 32px),var(--max))}.ink-brand{max-width:70%;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.material-bar-inner{gap:6px}.brand-link{font-size:15px}.brand-link img{height:26px;max-width:92px}.drawer-open{min-width:72px;padding:0 8px}.drawer-open span{display:none}.app-link{font-size:13px;padding:0 9px}.banner-slot{height:220px}.feature-slot{height:168px}.card-grid,.rack,.footer-grid,.section-index{grid-template-columns:1fr}.number-row{grid-template-columns:46px 1fr}.page-wrap{padding-bottom:56px}.footer-grid{gap:16px}.footer-grid section{padding-bottom:4px;border-bottom:1px solid var(--border)}.footer-grid section:last-child{border-bottom:0}.hero-title{font-size:24px}.section h2{font-size:20px}}