:root{--bg:#f6f7fb;--card:#fff;--ink:#0f172a;--mute:#64748b;--line:#e5e7eb;--pri:#2563eb;--pri2:#eff6ff;--ok:#059669;--warn:#d97706;--bad:#dc2626}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font:14px/1.6 -apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",sans-serif}
a{color:var(--pri);text-decoration:none}a:hover{text-decoration:underline}
.wrap{max-width:1200px;margin:0 auto;padding:0 20px}
.top{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}
.bar{display:flex;align-items:center;justify-content:space-between;height:56px}
.brand{font-weight:700;font-size:18px;color:var(--ink);display:flex;align-items:center;gap:8px}
.logo{display:inline-grid;place-items:center;width:30px;height:30px;border-radius:8px;background:var(--pri);color:#fff}
nav a{margin-left:20px;color:var(--mute)}
.hero{padding:40px 20px 20px}
.hero h1{font-size:32px;margin:0 0 8px}.hero h1 span{color:var(--pri)}
.hero p{color:var(--mute);max-width:760px;margin:0}
.stats{display:flex;gap:12px;flex-wrap:wrap;margin-top:18px}
.stat{background:#fff;border:1px solid var(--line);border-radius:12px;padding:10px 16px}
.stat b{display:block;font-size:20px}.stat span{color:var(--mute);font-size:12px}
.panel{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px}
.controls .row{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-bottom:12px}
.controls label{color:var(--mute);font-size:13px;display:flex;align-items:center;gap:6px}
input[type=search]{flex:1;min-width:240px;padding:9px 12px;border:1px solid var(--line);border-radius:10px;font-size:14px}
select{padding:7px 10px;border:1px solid var(--line);border-radius:8px;background:#fff;font-size:14px}
.chips{display:flex;flex-wrap:wrap;gap:6px}
.chips button{border:1px solid var(--line);background:#fff;border-radius:999px;padding:5px 12px;cursor:pointer;font-size:13px;color:var(--ink)}
.chips button.on{background:var(--pri);border-color:var(--pri);color:#fff}
.chips-row{gap:18px}
.budget input{width:160px}
.toolbar{display:flex;justify-content:space-between;align-items:center;margin:16px 0 10px;color:var(--mute)}
.tablewrap{padding:0;overflow-x:auto}
table{width:100%;border-collapse:collapse;min-width:900px}
th,td{padding:11px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
th{background:#f8fafc;font-size:12px;color:var(--mute);font-weight:600;position:sticky;top:0}
tr:last-child td{border-bottom:0}
tbody tr:hover{background:#fafcff}
.num{text-align:right;white-space:nowrap}
.cny{font-weight:700;font-size:16px}
.cheap{color:var(--ok)}
.prod{font-weight:600}.vendor{color:var(--mute);font-size:12px}
.hl{margin:0;padding-left:16px;color:#334155;font-size:13px}
.note{color:var(--mute);font-size:12px;margin-top:4px}td .note{white-space:nowrap}td:nth-child(6) .note{white-space:normal}
.badge{display:inline-block;font-size:11px;border-radius:6px;padding:1px 6px;border:1px solid}
.badge.official{color:var(--ok);border-color:#a7f3d0;background:#ecfdf5}
.badge.secondary{color:var(--warn);border-color:#fde68a;background:#fffbeb}
.badge.news{color:var(--bad);border-color:#fecaca;background:#fef2f2}
.tier{font-size:12px;padding:2px 8px;border-radius:999px;background:var(--pri2);color:var(--pri);white-space:nowrap}
.mk{font-size:11px;color:var(--mute);border:1px solid var(--line);border-radius:4px;padding:0 4px;margin-left:4px}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:14px}
.card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px;display:flex;flex-direction:column;gap:6px}
.card .big{font-size:26px;font-weight:700}
.card .src{margin-top:auto;font-size:12px}
.fxnote{color:var(--mute);font-size:12px;margin:12px 0 0}
.empty{text-align:center;color:var(--mute);padding:40px}
.faq h2{margin:40px 0 14px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:14px}
.grid h3{margin:0 0 6px;font-size:15px}.grid p{margin:0;color:#475569}
.foot{color:var(--mute);font-size:12px;padding:30px 20px 40px;border-top:1px solid var(--line);margin-top:40px}
@media (max-width:640px){.hero h1{font-size:24px}nav a{margin-left:12px}}