*{box-sizing:border-box;margin:0;padding:0}
body{font:15px/1.65 -apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;color:#1a1a1a;background:#f6f7f9;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
.wrap{max-width:920px;margin:0 auto;padding:0 15px}
header{background:#fff;border-bottom:1px solid #ebedf0;position:sticky;top:0;z-index:9}
.nav{display:flex;align-items:center;gap:20px;height:54px}
.logo{font-weight:700;font-size:16.5px;letter-spacing:.3px}
.nav a.lk{font-size:14px;color:#555}
.nav a.lk:hover{color:#0a5fd6}
.hero{background:#0d1b2a;color:#fff;padding:38px 0 34px}
.hero h1{font-size:23px;font-weight:700;letter-spacing:.5px}
.hero p{color:#a9b6c5;font-size:13.5px;margin-top:8px}
h2.sec{font-size:17px;font-weight:700;margin:26px 0 4px}
h3.grp{font-size:15px;font-weight:700;margin:24px 0 12px;padding-left:10px;border-left:3px solid #0a5fd6}
.sub{color:#8a8f99;font-size:13px;margin-bottom:6px}
.card{background:#fff;border:1px solid #ebedf0;border-radius:10px;padding:14px 16px;margin-bottom:10px;display:flex;gap:14px;align-items:flex-start;transition:.15s}
.card:hover{border-color:#c9d6e6;box-shadow:0 3px 14px rgba(13,27,42,.07)}
.card img{width:74px;height:74px;border-radius:8px;object-fit:cover;background:#eef1f4;flex:0 0 74px}
.card .b{flex:1;min-width:0}
.card h4{font-size:14.5px;font-weight:600;line-height:1.4;margin-bottom:4px}
.card p{font-size:12.5px;color:#7c838d;line-height:1.5}
.pm{display:flex;align-items:baseline;justify-content:space-between;margin-top:9px;gap:10px}
.price{color:#d93a2b;font-weight:700;font-size:17px;white-space:nowrap}
.price small{font-size:11.5px;font-weight:400;color:#8a8f99;margin-left:2px}
.btn{display:inline-block;text-align:center;background:#0a5fd6;color:#fff;border-radius:7px;padding:10px 18px;font-size:14px;font-weight:600;border:0;cursor:pointer}
.btn.full{display:block;width:100%;padding:12px}
.box{background:#fff;border:1px solid #ebedf0;border-radius:10px;padding:16px;margin-bottom:12px}
.row{display:flex;justify-content:space-between;gap:12px;padding:10px 0;border-bottom:1px dashed #eef1f4;font-size:14px}
.row:last-child{border:0}
input,select{width:100%;padding:11px;border:1px solid #dfe3e8;border-radius:7px;font-size:15px;background:#fff}
label{display:block;font-size:13px;color:#666;margin:14px 0 6px}
.detail img.big{width:100%;max-height:300px;object-fit:cover;border-radius:10px;background:#eef1f4}
footer{color:#8a8f99;font-size:12.5px;text-align:center;padding:30px 15px 44px;line-height:1.9}
.empty{text-align:center;color:#8a8f99;padding:40px 0}
.dl{display:grid;grid-template-columns:1fr;gap:14px}
@media(min-width:720px){.dl{grid-template-columns:300px 1fr}}