:root{--ink:#17242b;--muted:#5b6b73;--line:#dfe7e9;--bg:#f6f9f9;--card:#fff;--brand:#0f6e56;--brand2:#e1f5ee;--amber:#854f0b;--amber2:#faeeda;--radius:12px}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.75 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:1040px;margin:0 auto;padding:0 20px}
.topbar{background:var(--card);border-bottom:1px solid var(--line)}
.topbar .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:60px;flex-wrap:wrap}
.logo{font-size:18px;font-weight:600;color:var(--ink);letter-spacing:.5px}
.logo small{font-weight:400;color:var(--muted);font-size:12px;margin-left:8px}
.nav{display:flex;gap:18px;flex-wrap:wrap;font-size:14px}
.nav a.on{font-weight:600;border-bottom:2px solid var(--brand)}
.crumb{font-size:13px;color:var(--muted);padding:18px 0 0}
.crumb a{color:var(--muted)}
main{padding:22px 0 50px;min-height:60vh}
h1{font-size:28px;line-height:1.35;margin:8px 0 12px;font-weight:600}
h2{font-size:20px;margin:34px 0 12px;font-weight:600}
h3{font-size:16px;margin:22px 0 8px;font-weight:600}
p{margin:10px 0}
.lead{color:var(--muted);font-size:15px;max-width:760px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px 22px;margin:16px 0}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px;margin:16px 0}
.grid .card{margin:0}
.tag{display:inline-block;background:var(--brand2);color:var(--brand);border-radius:6px;padding:2px 9px;font-size:12px;margin:0 6px 6px 0}
.tag.amber{background:var(--amber2);color:var(--amber)}
.ai-fact{background:#f0f8f5;border-left:3px solid var(--brand);padding:14px 18px;border-radius:0 8px 8px 0;margin:14px 0;font-size:15px}
.ai-fact strong{color:var(--brand)}
.q{font-size:19px;font-weight:600;margin:0 0 6px}
table{width:100%;border-collapse:collapse;background:var(--card);font-size:14px;margin:14px 0}
th,td{border:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:top}
th{background:#eef4f4;font-weight:600}
ul,ol{padding-left:22px}
li{margin:5px 0}
.btn{display:inline-block;background:var(--brand);color:#fff;border:0;border-radius:8px;padding:10px 20px;font-size:15px;cursor:pointer}
.btn:hover{opacity:.9;text-decoration:none}
.btn.ghost{background:transparent;color:var(--brand);border:1px solid var(--brand)}
.hot{color:#a32d2d;font-weight:600}
.note{font-size:13px;color:var(--muted)}
.hero{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:30px 32px;margin:18px 0}
.hero h1{margin-top:0}
.kpis{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px;margin:18px 0}
.kpi{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:14px}
.kpi b{display:block;font-size:22px;color:var(--brand);font-weight:600}
.kpi span{font-size:12px;color:var(--muted)}
label{display:block;font-size:13px;color:var(--muted);margin:10px 0 4px}
input,select,textarea{width:100%;padding:9px 11px;border:1px solid var(--line);border-radius:8px;font:14px inherit;background:#fff;color:var(--ink)}
textarea{min-height:90px;resize:vertical}
.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:0 14px}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.decoy{position:absolute;left:-9999px;top:-9999px}
.watermark{position:fixed;inset:0;pointer-events:none;z-index:9;opacity:.045;overflow:hidden;display:flex;flex-wrap:wrap;align-content:space-around;justify-content:space-around;font-size:13px;color:#0f6e56;transform:rotate(-18deg)}
.watermark span{padding:18px 26px;white-space:nowrap}
footer{background:var(--card);border-top:1px solid var(--line);padding:26px 0 34px;font-size:13px;color:var(--muted)}
footer .cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:18px}
.result{background:var(--brand2);border-radius:10px;padding:16px;margin-top:16px;font-size:15px}
@media(max-width:640px){h1{font-size:23px}.hero{padding:20px}table{font-size:13px}.watermark{display:none}}