:root{--bg:#EEF5FB;--deep:#E3EEF7;--card:#fff;--secondary:#D7E8F4;--ink:#10263A;--text:#243848;--muted:#5A7388;--assist:#7E93A6;--blue:#3B9FE0;--bright:#62B7EE;--steel:#1E6FB8;--ice:#A9D6F2;--mint:#2FA8A0;--border:rgba(30,111,184,.16);--strong:rgba(59,159,224,.38);--shadow:0 16px 40px rgba(16,38,58,.08)}
*{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;line-height:1.75;overflow-x:hidden;padding-top:120px}a{color:inherit;text-decoration:none}button{font:inherit}.wrap{width:min(1220px,calc(100% - 32px));margin:auto}.top-frame{position:fixed;z-index:80;top:0;left:0;right:0;height:18px;background:var(--steel);color:#fff;font-size:12px}.frame-inner{height:18px;display:flex;align-items:center;justify-content:space-between}.text-btn{border:0;background:transparent;color:#fff;height:18px;line-height:18px;padding:0 4px;cursor:pointer}.window-bar{position:fixed;z-index:79;top:18px;left:0;right:0;height:62px;background:rgba(255,255,255,.97);border-bottom:1px solid var(--border);backdrop-filter:blur(12px)}.window-inner{height:62px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center}.brand{justify-self:start;display:flex;align-items:center;min-height:44px}.brand img,.footer-brand-row img,.book-brand img{max-height:36px;max-width:180px;object-fit:contain}.brand strong{font-size:20px;color:var(--ink)}.book-btn,.app-link{min-height:44px;display:inline-flex;align-items:center;justify-content:center;border-radius:10px}.book-btn{border:1px solid var(--strong);background:#fff;color:var(--steel);padding:0 20px;cursor:pointer}.app-link{justify-self:end;background:linear-gradient(135deg,#62B7EE 0%,#3B9FE0 48%,#1E6FB8 100%);color:#fff;padding:0 18px}.tab-track{position:fixed;z-index:78;top:80px;left:0;right:0;height:40px;background:var(--ice);border-bottom:1px solid var(--border)}.tab-inner{height:40px;display:flex;gap:6px;align-items:center}.tab-inner a{height:30px;display:flex;align-items:center;padding:0 12px;border-radius:8px;color:var(--ink)}.tab-inner a.active{background:var(--blue);color:#fff}.hero,.page-hero{padding:34px 0}.banner-slot,.media-slot{background:linear-gradient(145deg,#fff,#E7F3FB);border:1px solid var(--border);border-radius:16px;display:flex;align-items:center;justify-content:center;overflow:hidden}.banner-slot{min-height:240px;max-height:300px}.banner-slot img{width:100%;height:300px;object-fit:contain;object-position:center}.fallback-title{font-size:34px;font-weight:800;color:var(--steel);letter-spacing:.03em}.hero-copy{padding:22px 0 4px}.eyebrow{font-size:14px;font-weight:700;color:var(--steel)}h1{font-size:clamp(28px,4vw,32px);line-height:1.25;margin:8px 0 12px;color:var(--ink)}h2{color:var(--ink);line-height:1.35}p{margin:8px 0 16px}.lead{max-width:860px;font-size:17px}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:18px}.btn{min-height:44px;padding:10px 18px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;font-weight:700}.btn.primary{background:linear-gradient(135deg,#62B7EE 0%,#3B9FE0 48%,#1E6FB8 100%);color:#fff}.btn.secondary{background:#fff;color:var(--steel);border:1px solid var(--strong)}.section{padding:30px 0}.section.alt{background:var(--deep)}.section-head{display:flex;justify-content:space-between;gap:24px;align-items:end;margin-bottom:18px}.section-head h2{margin:0;font-size:25px}.section-head p{margin:0;max-width:680px;color:var(--muted)}.tag-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.tag-card{background:#fff;border:1px solid var(--border);border-radius:14px;padding:18px;min-height:132px}.tag-card:nth-child(odd){border-top:4px solid var(--bright)}.tag-card:nth-child(even){border-top:4px solid var(--mint)}.tag-card h3{margin:0 0 6px;color:var(--ink)}.tag-card a{color:var(--steel);font-weight:700}.split{display:grid;grid-template-columns:1.05fr .95fr;gap:26px;align-items:center}.media-slot{min-height:220px}.media-slot img{width:100%;height:240px;object-fit:contain;object-position:center}.number-list{display:grid;gap:10px}.number-item{display:grid;grid-template-columns:56px 1fr;gap:14px;background:#fff;border:1px solid var(--border);border-radius:12px;padding:14px}.number{font-size:26px;font-weight:800;color:var(--steel)}.number-item h3{margin:0;color:var(--ink)}.number-item p{margin:4px 0;color:var(--muted)}.card-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.content-card{background:#fff;border:1px solid var(--border);border-radius:14px;overflow:hidden;box-shadow:var(--shadow)}.content-card .thumb{height:200px;background:#F5FAFE;display:flex;align-items:center;justify-content:center}.content-card .thumb img{width:100%;height:200px;object-fit:contain;object-position:center}.content-card .body{padding:16px}.content-card h3{margin:0 0 8px;color:var(--ink)}.six-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.plain-card,.status-card,.article-card{background:#fff;border:1px solid var(--border);border-radius:14px;padding:18px}.plain-card h3,.status-card h3,.article-card h2{margin-top:0}.rack-list{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.rack-item{background:linear-gradient(135deg,#fff,#EAF5FC);border:1px solid var(--border);border-left:6px solid var(--steel);border-radius:12px;padding:16px}.big-numbers{display:grid;gap:12px}.big-row{display:grid;grid-template-columns:86px 1fr;gap:16px;align-items:center;background:#fff;border-radius:14px;border:1px solid var(--border);padding:18px}.big-row .n{font-size:42px;line-height:1;color:var(--steel);font-weight:900}.status-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.status-card{border-top:4px solid var(--blue)}.app-show{display:grid;grid-template-columns:.8fr 1.2fr;gap:28px;align-items:center}.app-visual{display:flex;align-items:center;justify-content:center;gap:16px;background:#fff;border:1px solid var(--border);border-radius:16px;padding:20px}.app-visual .phone{max-height:420px;max-width:75%;object-fit:contain}.app-visual .icon{width:64px;height:64px;object-fit:contain}.article-stack{display:grid;gap:16px}.page-hero .media-slot{margin-top:20px}.page-hero .media-slot img{height:240px}.article-card p:last-child{margin-bottom:0}.faq{display:grid;gap:14px}.faq article{background:#fff;border:1px solid var(--border);border-radius:14px;padding:18px}.faq h2{font-size:18px;margin:0 0 8px}.home-end{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.site-footer{background:#10263A;color:#C7D8E6;padding:34px 0 80px;margin-top:36px}.footer-brand-row{display:flex;align-items:center;gap:12px;margin-bottom:22px}.footer-brand-row div{display:flex;flex-direction:column}.footer-brand-row strong{color:#fff}.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;border-top:1px solid rgba(255,255,255,.12);padding-top:22px}.footer-grid h2{color:#fff;font-size:16px;margin:0 0 10px}.footer-grid a{display:block;padding:5px 0;color:#C7D8E6}.footer-note{border-top:1px solid rgba(255,255,255,.12);margin-top:20px;padding-top:16px;font-size:14px}.overlay{position:fixed;z-index:90;inset:0;background:rgba(16,38,58,.38);opacity:0;visibility:hidden;pointer-events:none;transition:.18s}.overlay.open{opacity:1;visibility:visible;pointer-events:auto}.book-panel,.search-panel{position:fixed;z-index:95;left:50%;top:80px;transform:translateX(-50%) translateY(-8px);width:min(1220px,calc(100% - 32px));background:#fff;border:1px solid var(--border);box-shadow:var(--shadow);border-radius:0 0 16px 16px;opacity:0;visibility:hidden;pointer-events:none;transition:.18s;max-height:50vh;overflow:auto}.book-panel.open,.search-panel.open{opacity:1;visibility:visible;pointer-events:auto;transform:translateX(-50%) translateY(0)}.book-head,.search-head{position:sticky;top:0;background:#fff;display:flex;justify-content:space-between;align-items:center;padding:14px 18px;border-bottom:1px solid var(--border);z-index:2}.book-brand{display:flex;align-items:center;gap:10px}.book-head button,.search-head button{min-height:44px;border:1px solid var(--strong);background:#fff;color:var(--steel);border-radius:10px;padding:0 14px;cursor:pointer}.book-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;padding:18px}.book-grid h2{font-size:16px;margin:0 0 10px}.book-grid a{display:block;padding:9px 0;border-bottom:1px solid rgba(30,111,184,.09)}.book-grid b{display:block;color:var(--ink)}.book-grid span{display:block;color:var(--muted);font-size:13px}.search-panel{max-height:none}.search-card{padding-bottom:20px}.search-look{margin:20px;border:1px solid var(--strong);border-radius:12px;padding:14px 16px;color:var(--assist);background:#F8FCFF}.search-links{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;padding:0 20px 20px}.search-links a{min-height:48px;display:flex;align-items:center;justify-content:center;background:var(--deep);color:var(--steel);border-radius:10px;font-weight:700}.layer-open{overflow:hidden}.mobile-bottom{display:none}.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}a:focus-visible,button:focus-visible{outline:3px solid rgba(47,168,160,.45);outline-offset:3px}
@media(max-width:900px){.card-grid{grid-template-columns:repeat(2,1fr)}.six-grid,.tag-grid{grid-template-columns:repeat(2,1fr)}.status-grid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:repeat(2,1fr)}.home-end{grid-template-columns:1fr}.book-grid{grid-template-columns:repeat(2,1fr)}.split,.app-show{grid-template-columns:1fr}}
@media(max-width:640px){body{padding-top:80px;padding-bottom:58px}.tab-track{display:none}.window-inner{grid-template-columns:minmax(0,1fr) auto auto;gap:8px}.brand{min-width:0}.brand img{max-width:128px}.book-btn{padding:0 14px}.app-link{padding:0 12px}.hero,.page-hero{padding:24px 0}.banner-slot{min-height:180px}.banner-slot img{height:220px}.tag-grid,.six-grid,.card-grid,.status-grid,.rack-list,.footer-grid,.book-grid,.search-links{grid-template-columns:1fr}.split{gap:16px}.media-slot img,.page-hero .media-slot img{height:210px}.content-card .thumb,.content-card .thumb img{height:190px}.big-row{grid-template-columns:64px 1fr}.big-row .n{font-size:34px}.section-head{display:block}.section-head p{margin-top:6px}.book-panel,.search-panel{top:80px;left:0;transform:translateY(-8px);width:100%;border-radius:0;max-height:66vh}.book-panel.open,.search-panel.open{transform:translateY(0)}.search-panel{inset:80px 0 0 0;max-height:none;height:calc(100vh - 80px);background:var(--ice);overflow:auto}.search-card{background:var(--ice);min-height:100%}.search-head{background:var(--ice)}.mobile-bottom{position:fixed;z-index:75;display:grid;grid-template-columns:repeat(5,1fr);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(--border)}.mobile-bottom a{display:flex;align-items:center;justify-content:center;font-size:13px;min-height:50px}.mobile-bottom a.active{background:var(--blue);color:#fff}.site-footer{padding-bottom:92px}.footer-grid{grid-template-columns:repeat(2,1fr)}.book-grid{grid-template-columns:1fr 1fr;gap:12px}.book-grid a{padding:8px 0}.app-visual{min-height:260px}.app-visual .phone{max-height:340px}.top-frame .wrap{width:calc(100% - 24px)}}
@media(max-width:420px){.book-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.window-inner{gap:6px}.brand img{max-width:110px}.brand strong{font-size:17px}.book-btn,.app-link{font-size:14px;padding:0 10px}.wrap{width:calc(100% - 32px)}}