:root{--bg:#F4F6FC;--deep:#E6EAF8;--card:#fff;--sub:#EEF1FB;--ink:#1E2440;--text:#2C3458;--muted:#5C6890;--soft:#8892B0;--violet:#6B7CDB;--blue:#9AABF0;--navy:#3E4A9A;--gold:#D4B483;--teal:#7EAEB0;--border:rgba(107,124,219,.22);--shadow:0 12px 28px rgba(30,36,64,.08)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-size:15px;line-height:1.7;overflow-x:hidden;padding-top:116px}body.locked{overflow:hidden}.wrap{width:min(960px,calc(100% - 32px));margin:auto}.micro{position:fixed;z-index:80;top:0;left:0;right:0;height:18px;background:var(--ink);color:#fff;font-size:12px}.micro-in{display:flex;align-items:center;justify-content:space-between;height:18px}.micro a,.micro button{color:#fff;text-decoration:none}.text-btn{border:0;background:none;padding:0;cursor:pointer}.mast{position:fixed;z-index:79;top:18px;left:0;right:0;height:54px;background:#fdfefe;border-bottom:1px solid var(--border)}.mast-in{height:54px;display:flex;align-items:center;justify-content:space-between}.brand{display:flex;align-items:center;color:var(--ink);text-decoration:none;font-size:16px}.brand img,.foot-brand img,.clip-head img{height:24px;width:auto;object-fit:contain}.mast-actions{display:flex;gap:8px;align-items:center}.mini-link,.clip-btn,.btn{min-height:40px;border-radius:10px;padding:8px 14px;border:1px solid var(--border);text-decoration:none;font-size:14px;display:inline-flex;align-items:center;justify-content:center;cursor:pointer}.mini-link{background:#fff;color:var(--ink)}.clip-btn,.btn.primary{border:0;color:#fff;background:linear-gradient(135deg,#9AABF0 0%,#6B7CDB 52%,#3E4A9A 100%);box-shadow:0 6px 16px rgba(107,124,219,.18)}.clip-btn:hover,.btn.primary:hover,.pin-link.active:hover,.mobile-nav a.active:hover{filter:brightness(1.04);box-shadow:0 0 0 3px rgba(154,171,240,.40),0 10px 24px rgba(62,74,154,.28)}.clip-btn:active,.btn.primary:active,.pin-link.active:active,.mobile-nav a.active:active{filter:brightness(1.08);box-shadow:0 0 0 4px rgba(212,180,131,.48),0 0 22px rgba(107,124,219,.52)}a:focus-visible,button:focus-visible{outline:2px solid var(--violet);outline-offset:2px}.pinbar{position:fixed;z-index:78;top:72px;left:0;right:0;height:44px;background:var(--deep);border-bottom:1px solid var(--border)}.pinbar-in{height:44px;display:flex;align-items:center;gap:10px}.pin-shape{width:8px;height:18px;border-radius:2px;background:var(--violet)}.pin-link{padding:5px 10px;border:1px solid var(--violet);border-radius:8px;text-decoration:none;color:var(--ink);font-size:13px}.pin-link.active{background:var(--navy);color:#fff;border-color:var(--gold);box-shadow:0 6px 16px rgba(107,124,219,.18)}.site-main{padding-top:28px;padding-bottom:60px}.crumb{font-size:13px;color:var(--muted);margin:0 0 14px}.crumb a{color:var(--navy);text-decoration:none}h1{font-size:24px;line-height:1.3;color:var(--ink);margin:0 0 12px}h2{font-size:20px;color:var(--ink);margin:0 0 10px}h3{font-size:16px;color:var(--ink);margin:0 0 8px}p{margin:0 0 12px}.lead{font-size:16px;color:var(--muted);max-width:760px}.hero-note,.section,.article-box,.term-box{background:var(--card);border:1px solid var(--border);border-radius:12px;box-shadow:var(--shadow);padding:22px;margin-bottom:20px}.hero-note{border-top:4px solid var(--violet)}.action-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}.btn.secondary{background:#fff;color:var(--navy)}.img-slot{background:#fff;border:1px solid var(--border);border-radius:12px;display:flex;align-items:center;justify-content:center;overflow:hidden}.img-slot img{width:100%;height:100%;object-fit:contain;object-position:center}.slot-160{height:160px}.slot-168{height:168px}.slot-176{height:176px}.slot-square{width:240px;height:176px}.slot-app{width:240px;height:320px}.slot-banner{width:100%;height:200px}.cut{display:grid;grid-template-columns:250px 1fr;gap:20px;align-items:center}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:16px}.card{background:var(--sub);border:1px solid var(--border);border-radius:12px;padding:18px}.card .img-slot{margin-bottom:12px}.page-cards{display:grid;grid-template-columns:1fr 1fr;gap:16px}.step-list{counter-reset:s}.step{position:relative;padding:18px 18px 18px 56px;background:#fff;border:1px solid var(--border);border-radius:12px;margin-bottom:12px}.step:before{counter-increment:s;content:counter(s);position:absolute;left:16px;top:16px;width:28px;height:28px;border-radius:50%;display:grid;place-items:center;background:var(--violet);color:#fff}.status-row{display:flex;gap:10px;flex-wrap:wrap}.status{padding:8px 12px;border-radius:999px;background:var(--sub);border:1px solid var(--border);color:var(--ink)}.status strong{color:var(--navy)}.wrap-pin{display:grid;grid-template-columns:260px 1fr;gap:22px;align-items:start}.longread p{margin-bottom:16px}.terms h2{margin-top:18px}.faq-item{background:#fff;border:1px solid var(--border);border-radius:12px;padding:18px;margin-bottom:12px}.faq-item h2{font-size:17px}.footer{background:var(--ink);color:#EEF1FB;border-top:1px solid var(--violet);padding:34px 0 76px;font-size:13px}.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:20px}.foot-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.foot-grid h3{color:#fff}.foot-grid a{display:block;color:#EEF1FB;text-decoration:none;margin:5px 0}.foot-note{margin-top:20px;color:#cfd5ef}.copyright{color:#aeb8d8}.overlay{position:fixed;inset:0;background:rgba(30,36,64,.42);z-index:90;opacity:0;visibility:hidden;pointer-events:none;transition:.18s}.overlay.open{opacity:1;visibility:visible;pointer-events:auto}.clip-card{position:fixed;z-index:100;left:max(16px,calc((100vw - 960px)/2));bottom:64px;width:min(520px,calc(100vw - 32px));max-height:64vh;overflow:auto;background:#fff;border:1px solid var(--border);border-radius:14px;box-shadow:0 18px 50px rgba(30,36,64,.24);transform:translateY(24px);opacity:0;visibility:hidden;pointer-events:none;transition:.18s}.clip-card.open{transform:none;opacity:1;visibility:visible;pointer-events:auto}.clip-head{position:sticky;top:0;background:#fff;display:flex;justify-content:space-between;align-items:center;padding:14px 16px;border-bottom:1px solid var(--border)}.clip-head>div{display:flex;align-items:center;gap:8px}.clip-head button,.search-close{min-width:44px;min-height:44px;border:1px solid var(--border);background:#fff;border-radius:10px}.clip-groups{padding:10px 16px 18px}.clip-groups h3{margin-top:10px}.clip-groups a{display:flex;justify-content:space-between;gap:12px;padding:9px 0;color:var(--ink);text-decoration:none;border-bottom:1px dashed var(--border)}.clip-groups a span{color:var(--muted);font-size:13px}.search-panel{position:fixed;z-index:101;top:72px;left:50%;transform:translateX(-50%) translateY(-15px);width:min(960px,calc(100% - 32px));background:#fff;border:1px solid var(--border);border-radius:0 0 14px 14px;box-shadow:var(--shadow);opacity:0;visibility:hidden;pointer-events:none;transition:.18s}.search-panel.open{transform:translateX(-50%) translateY(0);opacity:1;visibility:visible;pointer-events:auto}.search-inner{padding:22px}.search-close{float:right}.search-links{display:flex;flex-wrap:wrap;gap:10px;clear:both;padding-top:10px}.search-links a{padding:9px 14px;border-radius:999px;background:var(--sub);color:var(--navy);text-decoration:none;border:1px solid var(--border)}.mobile-nav{display:none}
@media(max-width:720px){body{padding-top:72px;padding-bottom:56px}.pinbar{display:none}.site-main{padding-top:22px}.cut,.two-col,.page-cards,.wrap-pin{grid-template-columns:1fr}.slot-square,.slot-app{width:100%;max-width:280px;margin:auto}.foot-grid{grid-template-columns:1fr 1fr}.mobile-nav{position:fixed;z-index:85;left:0;right:0;bottom:0;height:calc(48px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:#fff;border-top:1px solid var(--border);display:grid;grid-template-columns:repeat(4,1fr)}.mobile-nav a{min-height:48px;display:grid;place-items:center;text-decoration:none;color:var(--ink);font-size:13px}.mobile-nav a.active{background:var(--navy);color:#fff;box-shadow:0 6px 16px rgba(107,124,219,.18)}.footer{padding-bottom:70px}.search-panel{top:0;left:0;transform:none;width:100%;height:100%;border-radius:0;background:var(--ink);color:#fff}.search-panel.open{transform:none}.search-panel h2{color:#fff}.search-links a{background:transparent;color:#fff;border-color:#8994cb}.search-close{background:transparent;color:#fff;border-color:#8994cb}.clip-card{left:16px;bottom:58px;max-height:64vh}.clip-groups a{display:block}.clip-groups a span{display:block;margin-top:2px}.mast-actions{gap:5px}.mini-link,.clip-btn{padding:7px 10px;min-height:44px}.brand strong{font-size:15px}}