:root{
  --primary:#0b6bcb; --primary-2:#1e88e5; --primary-dark:#0959ab;
  --ink:#1f2937; --muted:#6b7280; --line:#e5e7eb; --bg:#f5f7fb; --card:#fff;
  --radius:14px; --max:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;background:var(--bg);color:var(--ink);line-height:1.7;-webkit-font-smoothing:antialiased}
a{color:var(--primary);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%}

/* header */
header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
.hd{max-width:var(--max);margin:0 auto;padding:0 16px;height:62px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.brand{display:flex;align-items:center;gap:9px;font-weight:800;font-size:18px;color:var(--ink)}
.brand:hover{text-decoration:none}
.logo{width:30px;height:30px;border-radius:9px;background:linear-gradient(135deg,var(--primary),#26c6da);color:#fff;display:grid;place-items:center;font-size:15px;font-weight:800}
.brand small{color:var(--muted);font-weight:400;font-size:12px;margin-left:2px}
nav.main{display:flex;gap:2px;flex-wrap:wrap;justify-content:flex-end}
nav.main a{padding:8px 12px;border-radius:9px;font-size:14px;color:#374151}
nav.main a:hover{background:#f1f5fb;text-decoration:none}
nav.main a.active{background:var(--primary);color:#fff}
@media(max-width:820px){.brand small{display:none}.hd{height:auto;padding:10px 14px;flex-wrap:wrap}nav.main{width:100%;justify-content:flex-start}}

/* layout */
.wrap{max-width:var(--max);margin:0 auto;padding:0 16px}
main{padding:26px 0 64px;min-height:60vh}
h1{font-size:26px;margin:8px 0 6px;letter-spacing:-.3px}
h2{font-size:18px;margin:26px 0 12px}
.sub{color:var(--muted);font-size:14px;margin:0 0 20px}
.crumb{font-size:13px;color:var(--muted);margin-bottom:6px}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--primary)}

/* hero */
.hero{background:linear-gradient(135deg,#0b6bcb,#1e88e5 55%,#26c6da);color:#fff;border-radius:18px;padding:44px 36px;margin:10px 0 26px;box-shadow:0 10px 30px rgba(11,107,203,.18)}
.hero h1{color:#fff;font-size:30px;margin:0 0 10px}
.hero p{color:rgba(255,255,255,.92);max-width:720px;margin:0 0 20px;font-size:15px}
.hero-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}
.hero .btn{background:#fff;color:var(--primary);padding:9px 20px;font-size:14px;border-radius:999px;box-shadow:0 4px 14px rgba(3,40,80,.16)}
.hero .btn.ghost{background:rgba(255,255,255,.16);color:#fff;border:1px solid rgba(255,255,255,.45);box-shadow:none}
@media(max-width:640px){.hero{padding:30px 20px}.hero h1{font-size:23px}}

/* cards grid */
.tools{display:flex;flex-wrap:wrap;gap:16px;justify-content:center}
.tool{flex:0 0 calc(33.333% - 11px);max-width:calc(33.333% - 11px);display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px;transition:.18s;color:var(--ink)}
@media(max-width:1000px){.tool{flex:0 0 calc(50% - 8px);max-width:calc(50% - 8px)}}
@media(max-width:640px){.tool{flex:0 0 100%;max-width:100%}}
.tool:hover{text-decoration:none;transform:translateY(-3px);box-shadow:0 12px 26px rgba(15,23,42,.09);border-color:#bfd7f2}
.tool .ti{width:44px;height:44px;border-radius:12px;background:#eaf2ff;color:var(--primary);display:grid;place-items:center;font-size:22px;margin-bottom:12px}
.tool b{font-size:16px;margin-bottom:6px}
.tool p{color:var(--muted);font-size:13px;margin:0 0 12px}
.tool .go{margin-top:auto;color:var(--primary);font-size:13px;font-weight:700}

/* prose */
.prose{max-width:900px}
.prose h2{margin-top:32px}
.prose p{color:#374151;font-size:14.5px}
.prose ul{color:#374151;font-size:14.5px}
.faq details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:12px 16px;margin-bottom:10px}
.faq details summary{cursor:pointer;font-weight:700;font-size:14.5px}
.faq details p{color:var(--muted);font-size:14px;margin:8px 0 0}

/* drop zone */
.drop{border:2px dashed #c7d3e3;border-radius:16px;background:#fff;padding:32px 20px;text-align:center;transition:.18s;cursor:pointer}
.drop.drag{border-color:var(--primary);background:#f0f7ff}
.drop .ico{font-size:34px;color:var(--primary);line-height:1}
.drop b{display:block;font-size:16px;margin:8px 0 4px}
.drop span{color:var(--muted);font-size:13px}
input[type=file]{display:none}

/* panel */
.panel{display:none;grid-template-columns:1.05fr 1fr;gap:20px;margin-top:22px}
.panel.one{grid-template-columns:1fr}
@media(max-width:860px){.panel{grid-template-columns:1fr}}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px}
.card h2{font-size:16px;margin:0 0 12px;display:flex;align-items:center;gap:8px}
.card h2 .dot{width:8px;height:8px;border-radius:50%;background:var(--primary)}
#viewer{width:100%;height:380px;border-radius:10px;overflow:hidden;background:radial-gradient(120% 120% at 50% 0%,#eef5ff,#e2ebf7);position:relative}
#viewer canvas{display:block}
.viewhint{font-size:12px;color:var(--muted);text-align:center;margin-top:8px}

/* table */
table{width:100%;border-collapse:collapse;font-size:14px}
td{padding:7px 0;border-bottom:1px dashed var(--line);vertical-align:top}
td:first-child{color:var(--muted);width:48%}
td:last-child{text-align:right;font-weight:600}
td:last-child.left{text-align:left}
.big{font-size:20px;color:var(--primary)}
.note{font-size:12px;color:var(--muted);margin-top:12px;line-height:1.6}
.err{color:#dc2626;font-size:14px;margin-top:12px;white-space:pre-wrap}
.okmsg{color:#0e9f6e;font-size:14px;margin-top:10px}

/* форм */
.row2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media(max-width:560px){.row2{grid-template-columns:1fr}}
label.f{display:block;font-size:13px;color:var(--muted);margin-bottom:4px}
input,select{width:100%;padding:9px 10px;border:1px solid var(--line);border-radius:9px;font:inherit;background:#fff;color:var(--ink)}
input:focus,select:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(11,107,203,.12)}
input[type=checkbox]{width:18px;height:18px;min-width:18px;padding:0;flex:0 0 auto;accent-color:#0b6bcb;cursor:pointer}
.chk{display:flex;align-items:center;gap:8px;font-size:14px;margin-top:10px;cursor:pointer;white-space:nowrap}
.radio-row{display:flex;gap:18px;font-size:14px;color:#374151;margin:4px 0 10px}
.radio-row label{display:flex;align-items:center;gap:6px;cursor:pointer}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:0;border-radius:10px;padding:11px 18px;font:inherit;font-weight:700;cursor:pointer;background:var(--primary);color:#fff;transition:.15s}
.btn:hover{background:var(--primary-dark);text-decoration:none}
.btn.ghost{background:#fff;color:var(--primary);border:1px solid #cfe0f5}
.btn.ghost:hover{background:#f2f7ff}
.btn:disabled{opacity:.55;cursor:not-allowed}
.actions{display:flex;gap:10px;margin-top:16px;flex-wrap:wrap}

/* misc */
.msgbox{background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px;margin-top:12px}
footer{border-top:1px solid var(--line);color:var(--muted);font-size:12.5px;text-align:center;padding:22px 16px;line-height:1.9}
footer a{color:var(--muted)}
footer .fnav{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-bottom:6px}
.foot-icp{color:var(--muted)}
.mono{font-family:ui-monospace,Menlo,Consolas,monospace}
.tag{display:inline-block;background:#eaf2ff;color:var(--primary);border-radius:999px;padding:2px 9px;font-size:12px;font-weight:600;margin-right:6px}

/* safety / privacy notices */
.safety{margin-top:12px;display:flex;flex-direction:column;gap:8px}
.safety-row{display:flex;gap:10px;align-items:flex-start;border-radius:10px;padding:10px 14px;font-size:13px;line-height:1.65}
.safety-row.ok{background:#f0f9f4;border:1px solid #cdeada;color:#146c4a}
.safety-row.warn{background:#fff8e6;border:1px solid #ffe2ab;color:#8a5a00}
.safety-row .badge{flex:0 0 auto;font-size:12px;font-weight:800;border-radius:999px;padding:2px 9px;background:rgba(0,0,0,.06)}
.safety-row.ok .badge{background:#d6f2e2;color:#0e6b45}
.safety-row.warn .badge{background:#ffe9bd;color:#8a5a00}
.safety-row b{font-weight:800}
.hero-badges{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px}
.hero-badges span{background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.42);color:#fff;border-radius:999px;padding:4px 12px;font-size:13px}
.privacy-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px;margin-top:22px}
.privacy-card h2{font-size:16px;margin:0 0 12px;display:flex;align-items:center;gap:8px}
.privacy-card h2 .dot{width:8px;height:8px;border-radius:50%;background:#0e9f6e}

/* 数据卡片 / 体检结果 */
.statgrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px;margin:14px 0}
.statgrid.g3{grid-template-columns:repeat(3,1fr)}
@media(max-width:640px){.statgrid.g3{grid-template-columns:1fr 1fr}}
.stat{background:#f7f9fc;border:1px solid var(--line);border-radius:10px;padding:12px 14px}
.stat b{display:block;font-size:20px;color:var(--ink);line-height:1.3}
.stat span{font-size:12px;color:var(--muted)}
.stat.bad b{color:#c0392b}
.stat.warn b{color:#b26a00}
.stat.good b{color:#0e8a5f}
.sev{display:inline-block;border-radius:999px;padding:2px 10px;font-size:12px;font-weight:700}
.sev.ok{background:#e3f6ec;color:#0e6b45}
.sev.warn{background:#fff3d6;color:#8a5a00}
.sev.bad{background:#fde8e6;color:#a5281b}
.checklist{border:1px solid var(--line);border-radius:10px;overflow:hidden;margin:12px 0}
.checklist div{display:flex;align-items:center;gap:10px;padding:10px 14px;border-bottom:1px solid var(--line);font-size:14px}
.checklist div:last-child{border-bottom:0}
.checklist .t{flex:1}
.checklist .v{font-weight:700}
.canvas2d{width:100%;background:#0f1720;border-radius:10px;display:block}
.layerbar{display:flex;align-items:center;gap:10px;margin-top:10px;font-size:13px;color:var(--muted)}
input[type=range]{flex:1;accent-color:#0b6bcb}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media(max-width:760px){.grid2{grid-template-columns:1fr}}
.mini-tag{display:inline-block;background:#eef4ff;color:#0b6bcb;border-radius:6px;padding:1px 7px;font-size:12px;font-weight:700;margin-left:6px}
.tabs{display:flex;gap:8px;flex-wrap:wrap;margin:10px 0}
.tabs button{border:1px solid var(--line);background:#fff;border-radius:8px;padding:7px 14px;font-size:13px;cursor:pointer;color:var(--ink)}
.tabs button.on{background:var(--primary);border-color:var(--primary);color:#fff}

/* ============ 增材企业库 ============ */
.lib-hero{background:linear-gradient(135deg,#0b3d91,#0b6bcb 60%,#26a0da);color:#fff;border-radius:18px;padding:36px 34px;margin:10px 0 22px;box-shadow:0 10px 30px rgba(11,60,140,.18);display:flex;gap:26px;align-items:center;flex-wrap:wrap;justify-content:space-between}
.lib-hero .txt{flex:1 1 420px}
.lib-hero h1{color:#fff;font-size:28px;margin:0 0 8px}
.lib-hero p{color:rgba(255,255,255,.9);margin:0;font-size:14.5px;max-width:640px}
.lib-stat{display:flex;gap:18px;flex-wrap:wrap}
.lib-stat div{background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.3);border-radius:12px;padding:10px 16px;min-width:92px;text-align:center}
.lib-stat b{display:block;font-size:22px;line-height:1.25}
.lib-stat span{font-size:12px;color:rgba(255,255,255,.85)}

.filters{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px;margin-bottom:18px}
.fsearch{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.fsearch input{flex:1 1 240px;min-width:200px}
.fsearch .cnt{font-size:13px;color:var(--muted);white-space:nowrap}
.chips{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}
.chips button{border:1px solid var(--line);background:#fff;border-radius:999px;padding:5px 13px;font-size:13px;cursor:pointer;color:#374151;transition:.15s}
.chips button:hover{border-color:#bfd7f2;background:#f5f9ff}
.chips button.on{background:var(--primary);border-color:var(--primary);color:#fff;font-weight:700}

.co-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
@media(max-width:980px){.co-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:620px){.co-grid{grid-template-columns:1fr}}
.co{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px;color:var(--ink);transition:.18s;min-height:158px}
.co:hover{text-decoration:none;transform:translateY(-2px);box-shadow:0 12px 26px rgba(15,23,42,.09);border-color:#bfd7f2}
.co .n{display:flex;align-items:baseline;gap:8px;flex-wrap:wrap}
.co .n b{font-size:16.5px}
.co .n i{font-style:normal;font-size:12px;color:var(--muted)}
.co .m{display:flex;gap:8px;flex-wrap:wrap;margin:8px 0 8px;font-size:12px;color:var(--muted)}
.co .m span{background:#f1f5fb;border-radius:6px;padding:1px 7px}
.co .x{font-size:13px;color:#4b5563;margin:0 0 10px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.co .go{margin-top:auto;color:var(--primary);font-size:13px;font-weight:700}
.co.feat{border-color:#cfe0f5;background:linear-gradient(180deg,#f7fbff,#fff)}
.co .pin{display:inline-block;background:#fff3d6;color:#8a5a00;border-radius:999px;padding:1px 8px;font-size:11px;font-weight:700}

.sec-h{display:flex;align-items:center;justify-content:space-between;gap:10px;margin:30px 0 12px;flex-wrap:wrap}
.sec-h h2{margin:0}
.sec-h a{font-size:13px}

/* 企业详情 */
.co-detail{display:grid;grid-template-columns:1fr 320px;gap:20px;align-items:start}
@media(max-width:900px){.co-detail{grid-template-columns:1fr}}
.co-main{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 28px}
.co-title{display:flex;align-items:baseline;gap:10px;flex-wrap:wrap;margin:0 0 4px}
.co-title h1{margin:0;font-size:26px}
.co-title span{font-size:14px;color:var(--muted)}
.co-tags{display:flex;gap:8px;flex-wrap:wrap;margin:10px 0 18px}
.co-tags .tag{margin:0}
.co-body p{font-size:15px;line-height:1.9;color:#374151;margin:0 0 14px}
.co-side{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px}
.co-side h2{font-size:15px;margin:0 0 12px;display:flex;align-items:center;gap:8px}
.co-side h2 .dot{width:8px;height:8px;border-radius:50%;background:var(--primary)}
.kv{display:flex;justify-content:space-between;gap:12px;padding:8px 0;border-bottom:1px dashed var(--line);font-size:13.5px}
.kv:last-child{border-bottom:0}
.kv span{color:var(--muted);flex:0 0 auto}
.kv b{font-weight:600;text-align:right;word-break:break-all}
.rel{margin-top:16px;display:flex;flex-direction:column;gap:8px}
.rel a{display:block;background:#f7f9fc;border:1px solid var(--line);border-radius:9px;padding:8px 11px;font-size:13px;color:var(--ink)}
.rel a:hover{text-decoration:none;border-color:#bfd7f2;background:#f2f7ff}
.disclaimer{font-size:12.5px;color:var(--muted);margin-top:14px;line-height:1.7;background:#f7f9fc;border:1px solid var(--line);border-radius:10px;padding:10px 14px}

/* 推荐位：两列清单，任意数量都不会出现半行空洞 */
.feat-list{display:grid;grid-template-columns:1fr 1fr;gap:10px}
@media(max-width:760px){.feat-list{grid-template-columns:1fr}}
.feat-item{display:flex;align-items:center;gap:10px;background:#fff;border:1px solid var(--line);border-radius:11px;padding:11px 14px;color:var(--ink);transition:.15s;font-size:14px}
.feat-item:hover{text-decoration:none;border-color:#bfd7f2;background:#f7fbff;transform:translateX(2px)}
.feat-item .rk{flex:0 0 auto;width:26px;height:26px;border-radius:8px;background:#eaf2ff;color:var(--primary);font-size:12.5px;font-weight:800;display:grid;place-items:center}
.feat-item b{flex:0 0 auto;font-size:15px}
.feat-item i{font-style:normal;color:var(--muted);font-size:12.5px}
.feat-item .fc{margin-left:auto;font-size:12px;color:var(--muted);background:#f1f5fb;border-radius:6px;padding:1px 8px;white-space:nowrap}
.feat-item .fgo{color:var(--primary);font-weight:700}
.feat-item:last-child:nth-child(odd){grid-column:1/-1}

/* 两级分类筛选行 */
.chips-g { margin-bottom: 8px; padding-bottom: 10px; border-bottom: 1px dashed #e4e9f2; }
.chips-g button { font-weight: 600; }
.chips-g button.on { background: #0b3a75; border-color: #0b3a75; }