:root{--bg: #f8fafc;--surface: #fff;--text: #172434;--muted: #52647a;--brand: #2563eb;--accent: #0f766e;--border: #e2e8f0;--radius: 12px;color:var(--text);background:var(--bg);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif;line-height:1.65}*{box-sizing:border-box}[hidden]{display:none!important}body{margin:0;min-height:100vh;display:flex;flex-direction:column}main{flex:1;padding-block:28px 56px}a{color:#1d4ed8;text-underline-offset:.2em}:focus-visible{outline:3px solid var(--accent);outline-offset:3px}h1,h2,h3{line-height:1.3;margin:0 0 .55em;overflow-wrap:anywhere}h1{font-size:clamp(1.9rem,4.8vw,3.15rem)}h2{font-size:clamp(1.35rem,3vw,1.8rem)}h3{font-size:1.1rem}p{margin:0 0 1em;overflow-wrap:anywhere}.wrap{width:min(1180px,calc(100% - 32px));margin-inline:auto}.header{background:var(--surface);border-bottom:1px solid var(--border)}.header-row{min-height:64px;display:flex;gap:16px;align-items:center;justify-content:space-between;position:relative}.brand{font-weight:800;font-size:1.2rem;text-decoration:none;color:var(--text);white-space:nowrap}.brand span{color:var(--brand)}.desktop-nav{display:none}.mobile-nav summary{min-height:44px;display:list-item;padding:8px;cursor:pointer}.mobile-nav nav{position:absolute;z-index:1;right:0;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:6px;min-width:140px;box-shadow:0 8px 24px #17243415}.header nav a{display:block;padding:10px;text-decoration:none;color:var(--text)}.header nav a:hover,.header nav a[aria-current]{color:#1d4ed8;background:#eff6ff;border-radius:8px}.hero{background:#eef4ff;border:1px solid #dce8ff;border-radius:14px;padding:clamp(18px,5vw,56px)}.hero h1{max-width:21em}.eyebrow{color:var(--accent);font-weight:700;font-size:.9rem;letter-spacing:.04em}.lead{max-width:65ch;color:var(--muted)}.search{display:flex;gap:8px;max-width:660px;margin-block:16px}.search input{flex:1;min-width:0}input,select,button,.button{font:inherit;border:1px solid #94a3b8;border-radius:10px;padding:9px 12px;min-height:44px}input,select{background:var(--surface);color:var(--text);max-width:100%}button,.button{display:inline-flex;align-items:center;justify-content:center;background:var(--brand);color:#fff;border-color:var(--brand);cursor:pointer;text-decoration:none;font-weight:650}button:hover,.button:hover{background:#1d4ed8;color:#fff}.secondary{color:#1d4ed8;background:var(--surface);border-color:#bfdbfe}.actions{display:flex;flex-wrap:wrap;gap:8px}.block{margin-top:clamp(24px,4vw,40px)}.section-heading{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:4px 16px}.grid{display:grid;gap:14px}.card{display:block;min-width:0;padding:17px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);color:inherit;text-decoration:none}a.card:hover,.card:focus-within{border-color:var(--brand)}a.card:hover h3{color:#1d4ed8;text-decoration:underline}.card p:last-child{margin-bottom:0}.card p,.meta{color:var(--muted)}.tag{display:inline-block;background:#eaf1fc;color:#284571;border-radius:6px;padding:2px 8px;font-size:.85rem;margin-bottom:8px}.breadcrumb ol{list-style:none;display:flex;flex-wrap:wrap;gap:8px;padding:0;font-size:.92rem;margin:0 0 18px}.breadcrumb li+li:before{content:"/";color:var(--muted);margin-right:8px}.reading{max-width:760px}.reading h2{margin-top:1.3em}.reading li+li{margin-top:.4em}.filters{display:flex;flex-wrap:wrap;gap:12px;margin-block:16px}.field{display:grid;gap:5px;min-width:0}.notice{padding:14px 16px;background:#ecfdf5;border:1px solid #a7f3d0;border-radius:var(--radius)}.result{margin-top:14px;overflow-wrap:anywhere}.footer{border-top:1px solid var(--border);background:var(--surface);padding-block:24px}.footer p{color:var(--muted);margin:8px 0}.footer nav{display:flex;flex-wrap:wrap;gap:8px 16px}.footer nav a{padding-block:8px}.visually-hidden,.skip:not(:focus){position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}.skip:focus{position:absolute;z-index:2;background:#fff;padding:8px}@media(min-width:640px){.grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(min-width:900px){.grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}.grid.four{grid-template-columns:repeat(4,minmax(0,1fr))}.desktop-nav{display:flex;gap:4px}.mobile-nav{display:none}}