:root{--bg:#EEF5FB;--deep:#E3EEF7;--surface:#fff;--soft:#D7E8F4;--title:#10263A;--text:#243848;--muted:#5A7388;--aux:#7E93A6;--blue:#3B9FE0;--bright:#62B7EE;--steel:#1E6FB8;--ice:#A9D6F2;--mint:#2FA8A0;--line:rgba(30,111,184,.16);--line-strong:rgba(59,159,224,.38);--shadow:0 16px 40px rgba(16,38,58,.08);--radius:14px}
*{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","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.72;overflow-x:hidden}a{color:inherit;text-decoration:none}button,input{font:inherit}.shell{width:min(1220px,calc(100% - 32px));margin-inline:auto}.skip-link{position:fixed;left:16px;top:-60px;z-index:10000;background:#fff;color:var(--steel);padding:10px 14px;border-radius:10px}.skip-link:focus{top:10px}
.site-header{position:fixed;inset:0 0 auto;z-index:1000}.topline{height:18px;background:var(--steel);color:#fff;font-size:11px;line-height:18px}.topline-inner{display:flex;justify-content:space-between;align-items:center;height:18px}.text-button{border:0;background:transparent;color:#fff;padding:0 4px;cursor:pointer;line-height:18px}.windowbar{height:62px;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line);backdrop-filter:saturate(140%) blur(10px)}.windowbar-inner{height:100%;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:14px}.brand{justify-self:start;display:flex;align-items:center;min-height:44px}.brand-logo{display:block;max-height:36px;max-width:210px;width:auto;height:auto;object-fit:contain}.brand-text{font-weight:800;color:var(--title);font-size:20px}.windowbook-button,.app-link,.button-primary,.button-secondary{min-height:44px;border-radius:10px;padding:9px 16px;display:inline-flex;align-items:center;justify-content:center;font-weight:700}.windowbook-button{border:1px solid var(--line-strong);background:#fff;color:var(--steel);cursor:pointer}.app-link{justify-self:end;background:linear-gradient(135deg,var(--bright) 0%,var(--blue) 48%,var(--steel) 100%);color:#fff}.tabrail{height:40px;background:var(--ice);border-bottom:1px solid var(--line)}.tabrail-inner{height:100%;display:flex;align-items:center;gap:8px}.tabrail a{padding:4px 10px;border-radius:8px;color:var(--title);font-size:14px}.tabrail a.is-active{background:var(--blue);color:#fff}.site-main{padding-top:138px}.section{padding:34px 0}.section-tight{padding:24px 0}.surface{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}.hero-copy{padding:26px}.eyebrow{font-size:13px;font-weight:800;color:var(--steel);letter-spacing:.08em;text-transform:uppercase}.hero-title,h1{font-size:clamp(28px,4vw,32px);line-height:1.25;color:var(--title);margin:.35em 0 .45em}.section-title,h2{color:var(--title);line-height:1.3}.section-title{font-size:24px;margin:0 0 8px}.section-lead{color:var(--muted);max-width:820px;margin:0}.button-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}.button-primary{background:linear-gradient(135deg,var(--bright) 0%,var(--blue) 48%,var(--steel) 100%);color:#fff}.button-secondary{background:#fff;color:var(--steel);border:1px solid var(--line-strong)}.button-primary:hover,.button-secondary:hover,.app-link:hover{transform:translateY(-1px)}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid rgba(59,159,224,.32);outline-offset:2px}
.media-slot,.cover-slot,.app-media{background:linear-gradient(180deg,#f9fcff,#eaf5fc);border:1px solid var(--line);border-radius:var(--radius);display:flex;align-items:center;justify-content:center;overflow:hidden}.cover-slot{min-height:210px;max-height:300px}.media-slot{min-height:180px;height:210px}.app-media{min-height:300px}.media-slot img,.cover-slot img,.app-media img{width:100%;height:100%;max-height:100%;object-fit:contain;object-position:center;display:block}.cover-slot img{max-height:300px}.app-media img{max-height:420px;width:auto;max-width:100%}.media-fallback{min-height:inherit;width:100%;height:100%;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#d9edf9,#f8fcff);color:var(--steel);font-weight:800;letter-spacing:.08em}
.grid{display:grid;gap:16px}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px;min-width:0}.card h3{margin:0 0 6px;color:var(--title);font-size:18px}.card p{margin:0;color:var(--muted)}.card-link{display:inline-flex;margin-top:12px;color:var(--steel);font-weight:700}.tag-card{position:relative;padding-left:54px}.tag-mark{position:absolute;left:18px;top:20px;width:22px;height:22px;border-radius:6px;background:var(--bright)}.tag-card:nth-child(even) .tag-mark{background:var(--mint)}.number-list{display:grid;gap:10px}.number-item{display:grid;grid-template-columns:64px 1fr;gap:12px;padding:16px;background:#fff;border:1px solid var(--line);border-radius:12px}.big-num{font-size:28px;font-weight:900;color:var(--steel);line-height:1}.number-item h3{margin:0 0 4px}.number-item p{margin:0;color:var(--muted)}.split{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:22px;align-items:center}.rack-list{display:grid;gap:12px}.rack-row{display:grid;grid-template-columns:150px 1fr auto;gap:14px;align-items:center;padding:16px 18px;background:#fff;border:1px solid var(--line);border-radius:12px}.rack-row strong{color:var(--title)}.rack-row span{color:var(--muted)}.status{font-size:13px;color:var(--steel);font-weight:800}.prose{max-width:900px}.prose p{margin:0 0 1em}.prose h2{margin-top:1.6em}.prose h3{color:var(--title)}.notice{padding:16px 18px;border-left:4px solid var(--blue);background:#fff;border-radius:0 12px 12px 0;color:var(--muted)}.article-list{display:grid;gap:18px}.article-block{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px}.article-block h2,.article-block h3{margin-top:0}.kicker{font-size:13px;font-weight:800;color:var(--mint)}.faq-list{display:grid;gap:12px}.faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px}.faq-item h2{font-size:18px;margin:0 0 8px}.faq-item p{margin:0;color:var(--muted)}
.site-footer{background:#10263A;color:#C7D8E6;margin-top:44px;padding:38px 0 calc(24px + env(safe-area-inset-bottom))}.footer-grid{display:grid;grid-template-columns:1.7fr repeat(4,1fr);gap:22px}.footer-grid h2{font-size:15px;color:#fff;margin:0 0 10px}.footer-grid>div>a{display:block;padding:4px 0;color:#C7D8E6}.footer-brand p{max-width:360px;color:#9fb6c8}.footer-brand-link{display:flex;gap:12px;align-items:center;color:#fff}.footer-logo{height:34px;max-width:190px;object-fit:contain}.footer-brand-link span{display:flex;flex-direction:column}.footer-brand-link small{color:#9fb6c8}.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:26px;padding-top:18px;color:#93aabd;font-size:13px}
.overlay{position:fixed;inset:0;background:rgba(16,38,58,.36);z-index:1200;opacity:0;transition:opacity .18s}.overlay.is-visible{opacity:1}.windowbook,.search-panel{position:fixed;left:0;right:0;z-index:1300;visibility:hidden;pointer-events:none;opacity:0;transform:translateY(-10px);transition:.2s ease}.windowbook{top:80px;background:#f7fbfe;border-bottom:1px solid var(--line);box-shadow:var(--shadow);max-height:50vh;overflow:auto}.windowbook.is-open,.search-panel.is-open{visibility:visible;pointer-events:auto;opacity:1;transform:translateY(0)}.windowbook-head{display:flex;align-items:center;justify-content:space-between;padding-top:14px}.windowbook-brand{display:flex;align-items:center;gap:10px}.windowbook-brand img{height:30px;max-width:170px;object-fit:contain}.windowbook-brand span{display:flex;flex-direction:column}.windowbook-brand small{color:var(--muted)}.close-button{min-width:44px;min-height:44px;border:1px solid var(--line-strong);background:#fff;color:var(--steel);border-radius:10px;cursor:pointer}.windowbook-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;padding-top:12px;padding-bottom:20px}.menu-group h2{font-size:14px;margin:0 0 8px;color:var(--steel)}.menu-group a{display:block;padding:8px 0;border-bottom:1px dashed var(--line)}.menu-group a strong{display:block;color:var(--title);font-size:14px}.menu-group a span{display:block;color:var(--muted);font-size:12px;line-height:1.5}.search-panel{top:80px}.search-card{background:#fff;border:1px solid var(--line);border-radius:0 0 14px 14px;padding:20px;box-shadow:var(--shadow)}.search-head{display:flex;align-items:flex-start;justify-content:space-between}.search-head h2{margin:0}.search-head small{color:var(--steel)}.search-look{display:grid;gap:8px;margin-top:14px}.search-look span{color:var(--muted)}.search-look input{width:100%;min-height:48px;border:1px solid var(--line-strong);border-radius:10px;padding:10px 12px;background:#f9fcff;color:var(--text)}.preset-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}.preset-links a{padding:8px 12px;border:1px solid var(--line);border-radius:9px;color:var(--steel);background:#fff}.layer-open{overflow:hidden}.mobile-bottom{display:none}
@media(max-width:900px){.grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}.footer-grid{grid-template-columns:repeat(2,1fr)}.footer-brand{grid-column:1/-1}.windowbook-grid{grid-template-columns:repeat(2,1fr)}.split{grid-template-columns:1fr}}
@media(max-width:640px){body{padding-bottom:calc(50px + env(safe-area-inset-bottom))}.shell{width:calc(100% - 32px)}.tabrail{display:none}.site-main{padding-top:80px}.windowbar-inner{grid-template-columns:minmax(0,1fr) auto auto;gap:8px}.brand-logo{max-width:130px;max-height:30px}.brand-text{font-size:18px}.windowbook-button,.app-link{padding:7px 10px;font-size:14px}.section{padding:26px 0}.hero-copy{padding:20px}.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}.rack-row{grid-template-columns:1fr}.windowbook{top:80px;max-height:66vh}.windowbook-grid{grid-template-columns:1fr 1fr;gap:12px}.search-panel{top:0;bottom:0;background:var(--ice);transform:none}.search-card{width:100%;height:100%;border-radius:0;border:0;background:var(--ice);padding-top:max(24px,env(safe-area-inset-top));overflow:auto}.search-look input{background:#fff}.mobile-bottom{position:fixed;z-index:1100;left:0;right:0;bottom:0;height:calc(50px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:#fff;border-top:1px solid var(--line);display:grid;grid-template-columns:repeat(5,1fr)}.mobile-bottom a{display:flex;align-items:center;justify-content:center;font-size:13px;color:var(--muted)}.mobile-bottom a.is-active{background:var(--blue);color:#fff}.footer-grid{grid-template-columns:1fr 1fr}.number-item{grid-template-columns:50px 1fr}.cover-slot{min-height:170px}.media-slot{height:190px}.topline-inner{font-size:10px}}
@media(max-width:420px){.windowbook-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}.windowbook-button,.app-link{padding-inline:8px}.brand-logo{max-width:112px}}

.mt16{margin-top:16px}.app-icon-wrap{margin-top:12px;text-align:center}.app-icon{width:64px;height:64px;object-fit:contain}