:root{--ink:#12213a;--sub:#5a6b85;--line:#e3e8f0;--bg:#f6f8fc;--card:#fff;
--pri:#1a4f8f;--pri-d:#133c6e;--acc:#c9a227;--ok:#0f7b52;--warn:#8a6d1f}
*{box-sizing:border-box}
body{margin:0;font:16px/1.75 -apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei","PingFang SC",sans-serif;
color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased}
a{color:var(--pri);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}
header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:9}
.hbar{display:flex;align-items:center;gap:18px;height:62px}
.brand{font-weight:700;font-size:19px;color:var(--pri-d);letter-spacing:.5px;white-space:nowrap}
.brand span{font-weight:400;font-size:12px;color:var(--sub);margin-left:8px;letter-spacing:0}
nav{margin-left:auto;display:flex;gap:22px;font-size:15px}
nav a{color:var(--sub)}
nav a.on{color:var(--pri-d);font-weight:600}
.hero{background:linear-gradient(180deg,#eef3fb 0%,#f6f8fc 100%);border-bottom:1px solid var(--line);padding:44px 0 38px}
h1{font-size:31px;margin:0 0 12px;letter-spacing:-.3px}
.lead{font-size:17px;color:var(--sub);margin:0 0 22px;max-width:760px}
.search{display:flex;gap:10px;max-width:660px}
.search input{flex:1;padding:13px 16px;font-size:16px;border:1px solid var(--line);border-radius:9px;outline:none;background:#fff}
.search input:focus{border-color:var(--pri)}
.stats{display:flex;gap:26px;margin-top:20px;font-size:14px;color:var(--sub);flex-wrap:wrap}
.stats b{color:var(--pri-d);font-size:19px;margin-right:5px}
main{padding:34px 0 60px}
h2{font-size:22px;margin:38px 0 16px}
h2:first-child{margin-top:0}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(268px,1fr));gap:14px}
.card{background:var(--card);border:1px solid var(--line);border-radius:11px;padding:17px 18px;transition:.15s}
.card:hover{border-color:var(--pri);box-shadow:0 3px 14px rgba(26,79,143,.09);text-decoration:none}
.card h3{margin:0 0 7px;font-size:16.5px;color:var(--ink)}
.card p{margin:0;font-size:14px;color:var(--sub);line-height:1.6}
.badge{display:inline-block;font-size:12px;padding:2px 8px;border-radius:20px;background:#eef3fb;color:var(--pri-d);margin-right:6px}
.badge.r{background:#f2f5f9;color:var(--sub)}
.item{background:var(--card);border:1px solid var(--line);border-radius:11px;padding:18px 20px;margin-bottom:13px}
.item h3{margin:0 0 6px;font-size:18px}
.item .tg{color:var(--sub);font-size:14.5px;margin:0 0 10px}
.item .meta{display:flex;gap:8px;align-items:center;flex-wrap:wrap;font-size:12.5px;color:var(--sub);margin-top:11px}
.go{display:inline-block;margin-top:12px;padding:9px 18px;background:var(--pri);color:#fff;border-radius:8px;font-size:14.5px}
.go:hover{background:var(--pri-d);text-decoration:none}
.verified{color:var(--ok);font-weight:600}
.detail{background:var(--card);border:1px solid var(--line);border-radius:13px;padding:28px 30px}
.detail h1{font-size:27px;margin:0 0 8px}
.detail .sub{color:var(--sub);margin:0 0 20px}
.sec{margin-top:26px}
.sec h4{margin:0 0 10px;font-size:16px;color:var(--pri-d)}
.sec ul{margin:0;padding-left:20px}
.sec li{margin-bottom:7px}
.note{background:#fdfaf0;border-left:3px solid var(--acc);padding:13px 16px;border-radius:0 8px 8px 0;font-size:14.5px;color:#6b5518}
.disc{background:#f4f6fa;border:1px solid var(--line);border-radius:10px;padding:16px 18px;font-size:13.5px;color:var(--sub);margin-top:26px;line-height:1.7}
.crumb{font-size:13.5px;color:var(--sub);margin-bottom:16px}
.crumb a{color:var(--sub)}
.rel{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:11px;margin-top:14px}
.rel a{background:#fff;border:1px solid var(--line);border-radius:9px;padding:12px 14px;font-size:14.5px;display:block}
.rel a:hover{border-color:var(--pri);text-decoration:none}
footer{background:#12213a;color:#9fb0c8;padding:36px 0 30px;font-size:14px;margin-top:20px}
footer a{color:#c8d6ea}
.flinks{display:flex;gap:18px;flex-wrap:wrap;margin-bottom:14px}
.fnote{color:#7b8ba5;font-size:13px;line-height:1.7;max-width:820px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.pill{display:inline-block;font-size:12.5px;padding:3px 10px;border:1px solid var(--line);border-radius:20px;color:var(--sub);margin:0 6px 6px 0}
.results{margin-top:18px}
.empty{color:var(--sub);padding:22px 0}
.faq{border:1px solid var(--line);border-radius:10px;background:#fff;margin-bottom:9px;overflow:hidden}
.faq>summary{cursor:pointer;padding:14px 18px;font-weight:600;font-size:15.5px;list-style:none}
.faq>summary::-webkit-details-marker{display:none}
.faq>summary::before{content:"＋";color:var(--pri);font-weight:700;margin-right:10px}
.faq[open]>summary::before{content:"－"}
.faq .ans{padding:0 18px 15px 38px;font-size:14.8px;color:#3d4d66;line-height:1.78}
.faq .ans p{margin:0 0 8px}
.mark{background:#fff3bf;padding:0 1px;border-radius:2px}
.hit{font-size:13.5px;color:var(--sub);margin:0 0 12px}
.steps{counter-reset:st;margin:0;padding:0;list-style:none}
.steps li{counter-increment:st;position:relative;padding:0 0 12px 38px}
.steps li::before{content:counter(st);position:absolute;left:0;top:1px;width:25px;height:25px;
background:var(--pri);color:#fff;border-radius:50%;font-size:13px;line-height:25px;text-align:center}
.qlist{display:grid;grid-template-columns:repeat(auto-fill,minmax(268px,1fr));gap:13px}
.tags{margin-top:12px}
.feed{background:#fff;border:1px solid var(--line);border-radius:10px;padding:15px 18px;margin-bottom:11px}
.feed h3{margin:0 0 6px;font-size:16.5px}
.feed p{margin:0;font-size:14px;color:var(--sub)}
.tblwrap{overflow-x:auto;margin-top:14px;-webkit-overflow-scrolling:touch}
.tbl{width:100%;border-collapse:collapse;font-size:14.3px;min-width:640px}
.tbl th,.tbl td{border:1px solid var(--line);padding:11px 13px;text-align:left;vertical-align:top}
.tbl th{background:#eef3fb;color:var(--pri-d);font-weight:600;font-size:13.8px;white-space:nowrap}
.tbl tr:nth-child(even) td{background:#fafcff}
.tbl td b{color:var(--ink)}
.kv{display:grid;grid-template-columns:118px 1fr;gap:9px 14px;font-size:14.8px;margin-top:12px}
.kv dt{color:var(--sub);font-size:14px}
.kv dd{margin:0}
.howto{margin:0;padding-left:20px}
.howto li{margin-bottom:8px}
.mis{background:#fdfaf0;border-left:3px solid var(--acc);border-radius:0 8px 8px 0;padding:13px 16px;margin-top:10px}
.mis ul{margin:0;padding-left:18px;font-size:14.5px;color:#6b5518}
.mis li{margin-bottom:6px}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.gnav{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 18px}
.gnav a{font-size:13.5px;padding:5px 12px;border:1px solid var(--line);border-radius:20px;background:#fff;color:var(--sub)}
.gnav a:hover{border-color:var(--pri);color:var(--pri-d);text-decoration:none}
.gloss{margin:0}
.gloss .term{padding:13px 0;border-bottom:1px solid var(--line)}
.gloss .term:last-child{border-bottom:none}
.gloss dt{font-size:17px;font-weight:700;color:var(--ink);margin-bottom:5px}
.gloss dt .en{font-weight:400;font-size:13px;color:var(--sub);margin-left:8px}
.gloss dd{margin:0;font-size:14.5px;line-height:1.7;color:#444}
.totop{position:fixed;right:22px;bottom:26px;z-index:60;width:46px;height:46px;border-radius:50%;
border:none;background:var(--pri);color:#fff;font-size:13px;font-weight:600;cursor:pointer;
box-shadow:0 4px 14px rgba(0,0,0,.18);opacity:0;visibility:hidden;transform:translateY(10px);
transition:opacity .25s,visibility .25s,transform .25s,background .2s}
.totop.show{opacity:1;visibility:visible;transform:none}
.totop:hover{background:var(--pri-d)}
.totop:focus-visible{outline:2px solid var(--pri-d);outline-offset:2px}
@media(max-width:640px){.totop{right:14px;bottom:16px;width:40px;height:40px}}
@media(max-width:640px){.hbar{gap:10px}nav{gap:12px;font-size:13.5px}.brand span{display:none}
h1{font-size:25px}.detail{padding:22px 20px}.stats{gap:16px}
.kv{grid-template-columns:1fr;gap:2px}.kv dd{margin-bottom:8px}}