:root{
  --blue:#1d4ed8;--blue-d:#1e3a8a;--blue-bg:#eff4ff;
  --ink:#16213a;--ink2:#4b587a;--line:#e3e8f4;
  --red:#dc2626;--orange:#d97706;--green:#16a34a;
  --bg:#f5f7fc;--card:#ffffff;
  --shadow:0 2px 10px rgba(30,58,138,.07);
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,sans-serif;background:var(--bg);color:var(--ink);line-height:1.65;font-size:15px}
a{color:var(--blue);text-decoration:none}
.wrap{max-width:1080px;margin:0 auto;padding:0 18px}

/* 顶栏 */
.topbar{background:linear-gradient(135deg,#16337a,#1d4ed8);color:#fff;position:sticky;top:0;z-index:50;box-shadow:0 2px 12px rgba(20,40,100,.25)}
.topbar .wrap{display:flex;align-items:center;gap:22px;height:58px}
.brand{font-size:18px;font-weight:700;letter-spacing:1px;color:#fff;display:flex;align-items:center;gap:8px;white-space:nowrap}
.brand .badge{font-size:11px;background:#f59e0b;color:#3a2a00;padding:1px 8px;border-radius:20px;font-weight:600}
.nav{display:flex;gap:4px;flex-wrap:wrap;margin-left:auto}
.nav a{color:#cdd9ff;padding:6px 12px;border-radius:8px;font-size:14px;white-space:nowrap}
.nav a:hover{background:rgba(255,255,255,.12);color:#fff}
.nav a.on{background:#fff;color:var(--blue-d);font-weight:600}

/* 通用 */
.page{padding:28px 0 60px}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);padding:22px;margin-bottom:18px}
h1{font-size:26px;margin-bottom:6px}
h2{font-size:19px;margin:22px 0 12px;padding-left:10px;border-left:4px solid var(--blue)}
h3{font-size:16px;margin:14px 0 8px}
.sub{color:var(--ink2);font-size:14px}
.btn{display:inline-block;background:var(--blue);color:#fff;border:none;border-radius:9px;padding:10px 22px;font-size:15px;cursor:pointer;font-family:inherit}
.btn:hover{background:var(--blue-d)}
.btn.ghost{background:#fff;color:var(--blue);border:1px solid var(--blue)}
.btn.sm{padding:5px 14px;font-size:13px}
.tag{display:inline-block;font-size:12px;padding:1px 9px;border-radius:20px;background:var(--blue-bg);color:var(--blue-d);margin:2px 3px 2px 0}
.lv{font-size:12px;font-weight:700;padding:2px 9px;border-radius:6px;white-space:nowrap}
.lv.high{background:#fde8e8;color:var(--red)}
.lv.mid{background:#fef3e2;color:var(--orange)}
.lv.low,.lv.info{background:#eef2f9;color:var(--ink2)}
.grid{display:grid;gap:16px}
.grid.c2{grid-template-columns:repeat(2,1fr)}
.grid.c4{grid-template-columns:repeat(4,1fr)}
@media(max-width:860px){.grid.c2,.grid.c4{grid-template-columns:1fr}.nav{display:none}}

/* 首页 */
.hero{background:linear-gradient(135deg,#16337a,#1d4ed8 60%,#3b82f6);border-radius:18px;color:#fff;padding:38px 34px;margin-bottom:22px}
.hero h1{font-size:30px}
.hero p{opacity:.85;max-width:640px;margin-top:8px}
.hero .hotline{display:inline-block;margin-top:16px;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.35);padding:8px 16px;border-radius:10px;font-size:14px}
.fcard{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px;box-shadow:var(--shadow);display:block;color:var(--ink);transition:.15s}
.fcard:hover{transform:translateY(-3px);box-shadow:0 8px 22px rgba(30,58,138,.13)}
.fcard .ico{font-size:26px}
.fcard h3{margin:10px 0 6px}
.fcard p{color:var(--ink2);font-size:13.5px}
.stat{text-align:center;padding:14px 0}
.stat b{display:block;font-size:26px;color:var(--blue-d)}
.stat span{font-size:13px;color:var(--ink2)}
.news-item{padding:12px 0;border-bottom:1px dashed var(--line)}
.news-item:last-child{border-bottom:none}
.news-item .d{color:var(--blue);font-weight:600;font-size:13px;margin-right:10px}

/* 法规库 */
.law-tabs{display:flex;gap:8px;flex-wrap:wrap;margin:14px 0}
.law-tabs button{border:1px solid var(--line);background:#fff;border-radius:9px;padding:8px 16px;cursor:pointer;font-size:14px;font-family:inherit;color:var(--ink)}
.law-tabs button.on{background:var(--blue);color:#fff;border-color:var(--blue)}
.search-box{width:100%;padding:11px 16px;border:1px solid var(--line);border-radius:10px;font-size:15px;font-family:inherit;margin-bottom:14px}
.article{border:1px solid var(--line);border-radius:12px;padding:16px 18px;margin-bottom:12px;background:#fff}
.article .head{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:8px}
.article .no{font-weight:700;color:var(--blue-d)}
.article .text{font-size:14.5px;color:#2a3450;background:#f8faff;border-radius:8px;padding:12px 14px;white-space:pre-wrap}
.interp{margin-top:10px;background:var(--blue-bg);border-left:4px solid var(--blue);border-radius:0 8px 8px 0;padding:10px 14px;font-size:14px}
.interp b{color:var(--blue-d)}
.dd{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:10px}
@media(max-width:700px){.dd{grid-template-columns:1fr}}
.dd .do,.dd .dont{border-radius:8px;padding:10px 14px;font-size:13.5px}
.dd .do{background:#f0fdf4;border:1px solid #bbf7d0}
.dd .dont{background:#fef2f2;border:1px solid #fecaca}
.dd h4{font-size:13px;margin-bottom:4px}
.dd .do h4{color:var(--green)}.dd .dont h4{color:var(--red)}
.dd li{margin-left:18px}
.kp{border:1px solid var(--line);border-radius:10px;padding:12px 16px;margin-bottom:10px;background:#fff}
.kp b{color:var(--blue-d)}

/* 自查清单 */
.type-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:16px 0}
@media(max-width:860px){.type-grid{grid-template-columns:repeat(2,1fr)}}
.type-card{border:2px solid var(--line);border-radius:12px;padding:18px;text-align:center;cursor:pointer;background:#fff;transition:.15s}
.type-card:hover{border-color:var(--blue)}
.type-card.on{border-color:var(--blue);background:var(--blue-bg)}
.type-card b{display:block;font-size:16px}
.type-card span{font-size:12.5px;color:var(--ink2)}
.qitem{border:1px solid var(--line);border-radius:10px;padding:13px 16px;margin-bottom:10px;background:#fff}
.qitem .q{display:flex;gap:10px;align-items:flex-start}
.qitem .qid{font-weight:700;color:var(--blue-d);white-space:nowrap}
.qitem .basis{font-size:12px;color:var(--ink2);margin-top:5px}
.qitem .opts{display:flex;gap:8px;margin-top:9px;flex-wrap:wrap}
.qitem .opts button{border:1px solid var(--line);background:#fff;border-radius:7px;padding:4px 13px;font-size:13px;cursor:pointer;font-family:inherit}
.qitem .opts button.sel-yes{background:#dcfce7;border-color:var(--green);color:#15803d;font-weight:600}
.qitem .opts button.sel-part{background:#fef3c7;border-color:var(--orange);color:#b45309;font-weight:600}
.qitem .opts button.sel-no{background:#fee2e2;border-color:var(--red);color:#b91c1c;font-weight:600}
.qitem .opts button.sel-na{background:#e5e7eb;border-color:#9ca3af;color:#4b5563;font-weight:600}
.progress{height:8px;background:#e8edf7;border-radius:10px;overflow:hidden;margin:10px 0}
.progress i{display:block;height:100%;background:var(--blue);border-radius:10px;transition:.3s}
.score-big{font-size:44px;font-weight:800;text-align:center}
.report-sec{margin-top:16px}
.risk-row{display:flex;justify-content:space-between;padding:8px 12px;border-bottom:1px dashed var(--line);font-size:14px}

/* 指南 */
.tl{border-left:3px solid var(--blue);margin-left:8px;padding-left:22px}
.tl .node{position:relative;margin-bottom:18px}
.tl .node::before{content:"";position:absolute;left:-30px;top:6px;width:13px;height:13px;border-radius:50%;background:var(--blue);border:3px solid #dbe6ff}
table.grid-t{width:100%;border-collapse:collapse;font-size:13.5px}
table.grid-t th{background:var(--blue-bg);color:var(--blue-d);text-align:left;padding:9px 12px;border:1px solid var(--line)}
table.grid-t td{padding:9px 12px;border:1px solid var(--line);vertical-align:top}
table.grid-t tr:nth-child(even) td{background:#fafbff}
.bad-cell{color:var(--red)}
.good-cell{color:var(--green)}
.step-num{display:inline-block;width:26px;height:26px;line-height:26px;text-align:center;border-radius:50%;background:var(--blue);color:#fff;font-weight:700;margin-right:8px}

/* AI 问答 */
.chat-box{height:460px;overflow-y:auto;border:1px solid var(--line);border-radius:12px;background:#fbfcff;padding:16px}
.msg{margin-bottom:14px;display:flex}
.msg.user{justify-content:flex-end}
.msg .bub{max-width:82%;padding:10px 15px;border-radius:12px;font-size:14.5px;white-space:pre-wrap}
.msg.user .bub{background:var(--blue);color:#fff;border-bottom-right-radius:4px}
.msg.ai .bub{background:#fff;border:1px solid var(--line);border-bottom-left-radius:4px}
.chat-input{display:flex;gap:10px;margin-top:12px}
.chat-input textarea{flex:1;border:1px solid var(--line);border-radius:10px;padding:11px 14px;font-size:15px;font-family:inherit;resize:none;height:52px}
.faq-chips{display:flex;flex-wrap:wrap;gap:8px;margin:10px 0 14px}
.faq-chips button{border:1px solid var(--line);background:#fff;border-radius:20px;padding:5px 14px;font-size:13px;cursor:pointer;font-family:inherit;color:var(--ink2)}
.faq-chips button:hover{border-color:var(--blue);color:var(--blue)}
.notice{background:#fffbeb;border:1px solid #fde68a;border-radius:10px;padding:10px 16px;font-size:13.5px;color:#92400e;margin-bottom:14px}

footer{color:var(--ink2);font-size:12.5px;text-align:center;padding:26px 0 40px;border-top:1px solid var(--line);margin-top:30px}