:root{--bg:#F3F6F9;--deep:#fff;--sub:#E8EEF5;--title:#0B1220;--text:#1E293B;--muted:#475569;--assist:#64748B;--blue:#2563EB;--light:#60A5FA;--deepblue:#1D4ED8;--lime:#65A30D;--slate:#334155;--border:rgba(37,99,235,.16);--shadow:0 14px 36px rgba(11,18,32,.08);--max:1180px}
*{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:1.72;overflow-x:hidden}a{color:inherit;text-decoration:none}button{font:inherit}img{display:block;max-width:100%;height:auto}.wrap{width:min(calc(100% - 32px),var(--max));margin-inline:auto}.ui-lock{overflow:hidden}.site-header{position:fixed;inset:0 0 auto;z-index:50}.signal-line{height:18px;background:var(--slate);color:#fff;font-size:11px}.signal-inner{height:18px;display:flex;align-items:center;justify-content:space-between}.plain-btn{border:0;background:transparent;color:#fff;padding:0 2px;cursor:pointer}.machine-bar{height:62px;background:#fff;border-bottom:1px solid var(--border)}.machine-inner{height:100%;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:12px}.brand{justify-self:start;display:flex;align-items:center;min-width:88px}.brand img,.drawer-brand img,.footer-brand img{height:30px;width:auto;object-fit:contain}.brand-text{font-size:24px;font-weight:800;color:var(--title)}.machine-btn,.app-link{min-height:44px;display:inline-flex;align-items:center;justify-content:center;border-radius:12px;padding:0 16px;border:1px solid var(--border);font-weight:700}.machine-btn{background:#fff;color:var(--blue);cursor:pointer}.app-link{justify-self:end;background:linear-gradient(135deg,var(--light),var(--blue) 52%,var(--deepblue));color:#fff;border-color:transparent}.key-tabs{height:40px;background:#f8fafc;border-bottom:1px solid var(--border)}.tabs-inner{height:100%;display:flex;align-items:center;gap:6px}.tabs-inner a{padding:6px 12px;border-radius:8px;color:var(--slate);font-weight:700;font-size:14px}.tabs-inner a.active{background:var(--blue);color:#fff}.site-main{padding-top:140px;padding-bottom:24px}.hero,.section{padding:26px 0}.hero-slot,.media-slot{background:linear-gradient(180deg,#fff,#eef3f8);border:1px solid var(--border);border-radius:16px;overflow:hidden}.hero-slot{min-height:210px;max-height:300px;display:grid;place-items:center}.hero-slot img{width:100%;max-height:300px;object-fit:contain;object-position:center}.hero-fallback{padding:52px 24px;text-align:center;color:var(--slate);font-size:34px;font-weight:800}.eyebrow{font-size:13px;font-weight:800;letter-spacing:.08em;color:var(--blue);margin:18px 0 8px}.hero h1,.page-head h1{margin:0;color:var(--title);font-size:clamp(28px,4vw,32px);line-height:1.25}.lead{max-width:820px;color:var(--muted);margin:14px 0 0}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:20px}.btn{min-height:44px;padding:10px 18px;border-radius:12px;font-weight:800;display:inline-flex;align-items:center;justify-content:center}.btn-primary{background:linear-gradient(135deg,var(--light),var(--blue) 52%,var(--deepblue));color:#fff}.btn-secondary{background:#fff;color:var(--blue);border:1px solid var(--border)}.key-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.key-card,.card,.status-card,.topic-card,.file-row,.number-row,.step-card,.faq-item{background:#fff;border:1px solid var(--border);border-radius:14px;box-shadow:var(--shadow)}.key-card{padding:16px}.dot{width:9px;height:9px;border-radius:50%;background:var(--blue);display:inline-block;margin-right:8px}.dot.lime{background:var(--lime)}.key-card h3{margin:8px 0 4px;color:var(--title);font-size:16px}.key-card p{margin:0;color:var(--muted);font-size:14px}.section-head{display:flex;justify-content:space-between;align-items:end;gap:18px;margin-bottom:16px}.section-head h2{margin:0;color:var(--title);font-size:24px}.section-head p{margin:0;color:var(--muted);max-width:720px}.two-col{display:grid;grid-template-columns:1.05fr .95fr;gap:18px;align-items:stretch}.four-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.three-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.card{padding:16px}.card h3,.topic-card h3,.status-card h3,.step-card h3{margin:12px 0 6px;color:var(--title)}.card p,.topic-card p,.status-card p,.step-card p{margin:0;color:var(--muted)}.media-slot{height:210px;display:grid;place-items:center}.media-slot img{width:100%;height:100%;object-fit:contain;object-position:center}.placeholder{font-weight:800;color:var(--assist)}.number-list{display:grid;gap:10px}.number-row{display:grid;grid-template-columns:72px 1fr auto;gap:12px;align-items:center;padding:15px}.number-row strong{font-size:26px;color:var(--blue)}.number-row h3{margin:0;color:var(--title)}.number-row p{margin:2px 0 0;color:var(--muted)}.number-row a{color:var(--blue);font-weight:800}.file-list{display:grid;gap:10px}.file-row{padding:16px;display:grid;grid-template-columns:120px 1fr auto;gap:14px;align-items:center}.file-row b{color:var(--title)}.file-row span{color:var(--muted)}.status-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.status-card,.topic-card,.step-card{padding:18px}.status-label{font-size:12px;font-weight:800;color:var(--blue)}.page-head{padding:24px 0 10px}.page-head .lead{max-width:900px}.content-grid{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:20px}.article-body,.side-card{background:#fff;border:1px solid var(--border);border-radius:16px;padding:22px;box-shadow:var(--shadow)}.article-body h2{margin-top:26px;color:var(--title);font-size:22px}.article-body h2:first-child{margin-top:0}.article-body h3{color:var(--title);margin-top:20px}.article-body p{margin:10px 0;color:var(--text)}.article-body ul{padding-left:20px}.article-body li{margin:8px 0}.side-card{position:sticky;top:154px;height:max-content}.side-card h2{margin-top:0;color:var(--title);font-size:18px}.side-card a{display:block;padding:9px 0;border-bottom:1px solid #e5edf6;color:var(--blue);font-weight:700}.note{padding:14px 16px;border-left:4px solid var(--blue);background:#eef4ff;border-radius:10px;color:var(--slate)}.steps{display:grid;gap:12px}.step-card{display:grid;grid-template-columns:58px 1fr;gap:12px}.step-no{font-size:28px;color:var(--blue);font-weight:900}.faq-list{display:grid;gap:12px}.faq-item{padding:18px}.faq-item h2{font-size:18px;margin:0 0 8px;color:var(--title)}.faq-item p{margin:0;color:var(--text)}.site-footer{background:#0B1220;color:#D6E4FF;padding:34px 0 80px}.footer-top{display:grid;grid-template-columns:1.15fr 2fr;gap:28px}.footer-brand{display:flex;flex-wrap:wrap;align-items:center;gap:8px}.footer-brand p{width:100%;color:#b8c7e2}.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.footer-grid h3{color:#fff;margin:0 0 10px;font-size:15px}.footer-grid a{display:block;color:#c7d7f3;padding:4px 0}.footer-bottom{border-top:1px solid rgba(214,228,255,.16);padding-top:16px;margin-top:26px;color:#9fb1cf}.overlay{position:fixed;inset:0;background:rgba(11,18,32,.48);z-index:80;opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.overlay.open{opacity:1;visibility:visible;pointer-events:auto}.drawer{position:fixed;top:0;right:0;width:min(400px,86vw);height:100dvh;background:#f8fafc;z-index:90;transform:translateX(105%);transition:.25s ease;visibility:hidden;pointer-events:none;overflow:auto;box-shadow:-18px 0 40px rgba(11,18,32,.16)}.drawer.open{transform:translateX(0);visibility:visible;pointer-events:auto}.drawer-head{position:sticky;top:0;background:#fff;border-bottom:1px solid var(--border);padding:14px 16px;display:flex;align-items:center;justify-content:space-between;z-index:2}.drawer-brand{display:flex;align-items:center;gap:10px}.close-btn{width:44px;height:44px;border-radius:10px;border:1px solid var(--border);background:#fff;color:var(--title);font-size:26px;cursor:pointer}.drawer-groups{padding:14px}.drawer-groups section{background:#fff;border:1px solid var(--border);border-radius:14px;padding:12px;margin-bottom:12px}.drawer-groups h2{font-size:14px;margin:0 0 8px;color:var(--slate)}.drawer-groups a{display:block;padding:10px;border-radius:10px}.drawer-groups a:hover,.drawer-groups a:focus-visible{background:#eef4ff}.drawer-groups b{display:block;color:var(--title)}.drawer-groups span{display:block;color:var(--muted);font-size:13px}.search-panel{position:fixed;left:0;right:0;top:80px;z-index:95;visibility:hidden;opacity:0;pointer-events:none;transform:translateY(-8px);transition:.2s}.search-panel.open{visibility:visible;opacity:1;pointer-events:auto;transform:none}.search-card{background:#fff;border:1px solid var(--border);box-shadow:var(--shadow);padding:18px;border-radius:0 0 14px 14px}.search-head{display:flex;align-items:center;justify-content:space-between}.fake-search{margin:14px 0;background:#eef2f7;border:1px solid var(--border);min-height:48px;padding:12px 14px;color:var(--assist)}.search-links{display:flex;gap:8px;flex-wrap:wrap}.search-links a{background:#fff;border:1px solid var(--border);color:var(--blue);padding:8px 12px;border-radius:10px;font-weight:700}.mobile-bottom{display:none}
a:focus-visible,button:focus-visible{outline:3px solid rgba(96,165,250,.55);outline-offset:2px}
@media (max-width:900px){.key-grid,.four-grid{grid-template-columns:repeat(2,1fr)}.three-grid{grid-template-columns:1fr 1fr}.two-col,.content-grid,.footer-top{grid-template-columns:1fr}.status-grid{grid-template-columns:1fr 1fr}.side-card{position:static}.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:700px){.key-tabs{display:none}.site-main{padding-top:96px;padding-bottom:72px}.machine-inner{grid-template-columns:minmax(0,1fr) auto auto;gap:8px}.brand{min-width:0}.brand img{max-width:112px}.machine-btn,.app-link{padding:0 11px;min-width:44px}.hero,.section{padding:18px 0}.hero-slot{min-height:180px}.key-grid,.four-grid,.three-grid,.status-grid{grid-template-columns:1fr}.file-row{grid-template-columns:1fr}.number-row{grid-template-columns:58px 1fr}.number-row a{grid-column:2}.footer-grid{grid-template-columns:1fr 1fr}.site-footer{padding-bottom:92px}.mobile-bottom{position:fixed;z-index:60;left:0;right:0;bottom:0;display:grid;grid-template-columns:repeat(5,1fr);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;min-height:50px;font-size:13px;font-weight:800}.mobile-bottom a.active{background:var(--blue);color:#fff}.search-panel{top:80px;bottom:0;background:#eef2f7}.search-card{height:100%;width:100%;border-radius:0;border:0;overflow:auto}.drawer{width:min(86vw,400px)}}