:root{--bg:#F3F6F9;--white:#fff;--soft:#E8EEF5;--ink:#0B1220;--text:#1E293B;--muted:#475569;--aux:#64748B;--blue:#2563EB;--blue2:#60A5FA;--blue3:#1D4ED8;--lime:#65A30D;--slate:#334155;--line:rgba(37,99,235,.16);--shadow:0 14px 36px rgba(11,18,32,.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","Microsoft YaHei",Arial,sans-serif;line-height:1.75;overflow-x:hidden}body.locked{overflow:hidden}a{color:inherit;text-decoration:none}button,input{font:inherit}.wrap{width:min(1180px,calc(100% - 32px));margin:auto}.site-header{position:fixed;z-index:50;inset:0 0 auto}.signal-line{height:18px;background:var(--slate);color:#fff;font-size:12px}.signal-inner{height:18px;display:flex;align-items:center;justify-content:space-between}.text-button{border:0;background:transparent;color:#fff;padding:0 4px;cursor:pointer}.machine-bar{height:62px;background:#fff;border-bottom:1px solid var(--line)}.machine-inner{height:62px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:12px}.brand-link{justify-self:start;min-height:44px;display:flex;align-items:center;font-size:22px;color:var(--ink)}.brand-logo{display:block;max-width:180px;height:30px;object-fit:contain;object-position:left center}.box-button,.app-link,.close-button{min-height:44px;border-radius:12px;border:1px solid var(--line);padding:8px 14px;background:#fff;color:var(--blue);cursor:pointer}.box-button{justify-self:center}.app-link{justify-self:end;background:linear-gradient(135deg,var(--blue2),var(--blue),var(--blue3));color:#fff;border:0;display:flex;align-items:center}.key-tabs{height:40px;background:#f8fafc;border-bottom:1px solid var(--line)}.tabs-inner{height:40px;display:flex;align-items:center;gap:6px}.tabs-inner a{padding:5px 12px;border-radius:8px;color:var(--slate);font-size:14px}.tabs-inner 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var(--line);border-radius:16px;padding:18px}.number-list{display:grid;gap:12px}.number-row{display:grid;grid-template-columns:64px 1fr;gap:14px;align-items:start;background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px}.number{font-size:30px;font-weight:900;color:var(--blue);line-height:1}.file-list{display:grid;gap:10px}.list-row{padding:15px 18px;display:grid;grid-template-columns:180px 1fr auto;gap:16px;align-items:center}.tag{font-size:13px;color:var(--blue);background:#eff6ff;border-radius:8px;padding:5px 8px}.topic-grid{grid-template-columns:repeat(4,1fr)}.topic-card{padding:18px}.status-grid{grid-template-columns:repeat(4,1fr)}.status-card{padding:20px;border-top:4px solid var(--blue)}.step-grid{grid-template-columns:repeat(3,1fr)}.step-card{padding:20px}.page-intro{padding:42px 0 18px;max-width:860px}.prose{max-width:900px}.prose h2,.section h2{color:var(--ink);font-size:24px;line-height:1.35}.prose p{margin:0 0 1.1em}.article-card{padding:22px;margin:16px 0}.opinion{border-left:4px solid var(--lime);padding:12px 16px;background:#f7fee7;border-radius:10px}.faq-list{display:grid;gap:14px}.faq-item{padding:18px}.faq-item h2{font-size:18px;margin:0 0 8px}.policy-block{padding:20px;margin:14px 0}.app-grid{display:grid;grid-template-columns:minmax(240px,360px) 1fr;gap:30px;align-items:center}.footer-wrap{padding:38px 0 76px}.site-footer{background:var(--ink);color:#D6E4FF;margin-top:40px}.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:24px}.footer-brand span{display:block;color:#9fb8dd;font-size:13px}.footer-logo{filter:brightness(0) invert(1)}.footer-groups{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}.footer-groups h2{font-size:15px;color:#fff}.footer-groups a{display:block;color:#D6E4FF;padding:4px 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