:root{--navy:#0b4f9c;--navy2:#083a75;--ink:#1c2430;--muted:#5b6775;--line:#e2e8ef;--bg:#f5f8fb;--gold:#c8963e}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family:"Helvetica Neue",Arial,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:#fff;line-height:1.7;font-size:15px}
a{color:var(--navy);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;display:block}
.wrap{max-width:1160px;margin:0 auto;padding:0 20px}
/* 顶栏 */
.topbar{background:var(--navy2);color:#dce8f6;font-size:13px}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center;gap:12px;height:36px}
.topbar a{color:#fff}
.hd{background:var(--navy);color:#fff;position:sticky;top:0;z-index:50;box-shadow:0 1px 0 rgba(255,255,255,.08)}
.hd .wrap{display:flex;align-items:center;gap:18px;height:62px}
.logo{font-weight:700;font-size:19px;letter-spacing:.5px;color:#fff;white-space:nowrap}
.logo small{display:block;font-size:11px;font-weight:400;color:#bcd4ee;letter-spacing:0}
.nav{margin-left:auto;display:flex;gap:2px;flex-wrap:wrap}
.nav a{color:#e8f1fb;padding:8px 12px;border-radius:6px;font-size:15px}
.nav a:hover{background:rgba(255,255,255,.14);text-decoration:none}
.nav a.on{background:#fff;color:var(--navy)}
.bug{display:none;background:none;border:1px solid rgba(255,255,255,.5);color:#fff;font-size:20px;line-height:1;padding:6px 10px;border-radius:6px;cursor:pointer}
/* 主视觉 */
.hero{background:linear-gradient(135deg,#0b4f9c,#1a76d2 60%,#2a91e0);color:#fff;padding:58px 0 50px}
.hero h1{margin:0 0 10px;font-size:38px;letter-spacing:2px}
.hero p{margin:0 0 6px;color:#d7e8fa;font-size:15px}
.hero .btn{display:inline-block;margin-top:18px;background:#fff;color:var(--navy);padding:11px 26px;border-radius:22px;font-weight:700}
.hero .btn:hover{text-decoration:none;background:#eef6ff}
.kpis{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:26px}
.kpi{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);border-radius:10px;padding:12px 14px}
.kpi b{display:block;font-size:22px}
.kpi span{font-size:12px;color:#d7e8fa}
/* 区块 */
section{padding:40px 0}
section.alt{background:var(--bg)}
h2{font-size:24px;margin:0 0 6px;color:var(--navy)}
h2+.sub{color:var(--muted);margin:0 0 22px;font-size:14px}
h3{font-size:18px;margin:0 0 6px}
/* 分类卡 */
.cats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.cat{border:1px solid var(--line);border-radius:10px;padding:16px;background:#fff;display:block;color:inherit;transition:.15s}
.cat:hover{border-color:var(--navy);box-shadow:0 6px 18px rgba(11,79,156,.10);text-decoration:none}
.cat .ic{font-size:22px}
.cat b{display:block;margin:6px 0 2px}
.cat span{font-size:13px;color:var(--muted);display:block;min-height:38px}
.cat em{font-style:normal;font-size:12px;color:var(--navy);font-weight:700}
/* 产品卡 */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.card{border:1px solid var(--line);border-radius:10px;background:#fff;overflow:hidden;display:flex;flex-direction:column;transition:.15s}
.card:hover{border-color:var(--navy);box-shadow:0 8px 22px rgba(11,79,156,.12);text-decoration:none;color:inherit}
.card .ph{height:132px;background:linear-gradient(135deg,#eaf2fb,#d9e8f8);display:flex;align-items:center;justify-content:center;font-size:34px;color:var(--navy);overflow:hidden}
.card .ph img{width:100%;height:132px;object-fit:cover}
.card .bd{padding:14px 16px 16px;flex:1;display:flex;flex-direction:column}
.card .en{font-size:12px;color:var(--muted);letter-spacing:.3px}
.card p{font-size:13.5px;color:#3c4755;margin:8px 0 10px;flex:1}
.tags{display:flex;flex-wrap:wrap;gap:6px}
.tag{font-size:11px;background:#eef4fb;color:var(--navy);border:1px solid #dbe8f6;border-radius:20px;padding:2px 9px}
.tag.rh{background:#fdf4e3;border-color:#f1dfb8;color:#8a6116}
/* 详情页 */
.crumb{font-size:13px;color:var(--muted);padding:14px 0}
.crumb a{color:var(--muted)}
.pd{display:grid;grid-template-columns:1.15fr .85fr;gap:28px;align-items:start}
.pd .shot{background:linear-gradient(135deg,#eaf2fb,#d9e8f8);border:1px solid var(--line);border-radius:12px;min-height:230px;display:flex;align-items:center;justify-content:center;font-size:60px;overflow:hidden}
.pd .shot img{width:100%;object-fit:contain;max-height:340px}
.spec{background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:16px 18px}
.spec ul{margin:8px 0 0;padding-left:18px}
.spec li{margin:4px 0;font-size:14px}
.pd h1{font-size:27px;margin:0 0 4px;color:var(--navy)}
.pd .men{color:var(--muted);font-size:14px;margin:0 0 12px}
.pd h4{margin:20px 0 6px;font-size:16px;color:var(--navy)}
.pd ol{padding-left:20px;margin:0}
.pd ol li{margin:5px 0}
.note{background:#fff8ea;border-left:4px solid var(--gold);padding:12px 16px;border-radius:0 8px 8px 0;font-size:13.5px;color:#6b5320}
.rel{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.rel a{border:1px solid var(--line);border-radius:8px;padding:10px 12px;font-size:13.5px}
.rel a:hover{border-color:var(--navy);text-decoration:none}
/* 表格 */
table{width:100%;border-collapse:collapse;font-size:14px}
th,td{border:1px solid var(--line);padding:9px 11px;text-align:left;vertical-align:top}
th{background:#eef4fb;color:var(--navy);font-weight:700}
tbody tr:nth-child(even){background:#fafcfe}
/* 表单 */
.form{max-width:560px;display:flex;flex-direction:column;gap:10px}
.form input,.form textarea{padding:10px 12px;border:1px solid #cfd8e3;border-radius:8px;font:inherit;font-size:14px;width:100%}
.form textarea{min-height:110px;resize:vertical}
.btn{background:var(--navy);color:#fff;border:0;border-radius:8px;padding:11px 20px;font:inherit;font-size:14px;cursor:pointer;font-weight:700}
.btn:hover{background:var(--navy2)}
.btn.gh{background:#fff;color:var(--navy);border:1px solid var(--navy)}
.msg{font-size:13.5px;padding:9px 12px;border-radius:8px;display:none}
.msg.on{display:block}
.msg.ok{background:#e9f7ee;color:#1c6b3c;border:1px solid #bfe6cd}
.msg.bad{background:#fdecec;color:#a32626;border:1px solid #f4c9c9}
/* 页脚 */
.ft{background:#0d1b2a;color:#b9c7d6;font-size:13.5px;padding:34px 0 26px;margin-top:20px}
.ft h5{color:#fff;margin:0 0 8px;font-size:14px}
.ft .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:24px}
.ft ul{list-style:none;margin:0;padding:0}
.ft li{margin:3px 0}
.ft a{color:#b9c7d6}
.ft .cp{border-top:1px solid #24384c;margin-top:22px;padding-top:14px;font-size:12.5px;color:#8ea3b8}
.warn{background:#1b2a3b;border:1px solid #2c4358;color:#e7c98d;border-radius:8px;padding:10px 14px;font-size:12.5px;margin-bottom:18px}
/* 后台 */
.ad{display:flex;min-height:100vh;background:var(--bg)}
.ad .side{width:220px;background:var(--navy);color:#fff;flex:0 0 220px;padding:18px 0}
.ad .side h4{margin:0 18px 14px;font-size:16px;color:#fff}
.ad .side h4 small{display:block;font-weight:400;font-size:11px;color:#a9c6e6}
.ad .side a{display:block;color:#dce8f6;padding:10px 18px;font-size:14px;border-left:3px solid transparent}
.ad .side a:hover{background:rgba(255,255,255,.10);text-decoration:none}
.ad .side a.on{background:rgba(255,255,255,.16);border-left-color:#fff;color:#fff}
.ad .side .out{margin:14px 18px 0;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.3);color:#fff;border-radius:6px;padding:7px 10px;cursor:pointer;font-size:13px;width:calc(100% - 36px)}
.ad .main{flex:1;min-width:0;padding:22px 26px 60px}
.ad .bar{display:flex;align-items:center;gap:10px;margin-bottom:14px;flex-wrap:wrap}
.ad .bar b{font-size:19px;color:var(--navy)}
.ad .bar .sp{margin-left:auto;display:flex;gap:8px;flex-wrap:wrap}
.pill{font-size:12px;border-radius:20px;padding:3px 10px;border:1px solid var(--line);background:#fff;color:var(--muted)}
.pill.ok{background:#e9f7ee;color:#1c6b3c;border-color:#bfe6cd}
.pill.bad{background:#fdecec;color:#a32626;border-color:#f4c9c9}
.panel{background:#fff;border:1px solid var(--line);border-radius:10px;padding:16px 18px;margin-bottom:16px}
.panel h4{margin:0 0 10px;font-size:15px;color:var(--navy)}
.ad input,.ad textarea,.ad select{padding:8px 10px;border:1px solid #cfd8e3;border-radius:7px;font:inherit;font-size:13.5px;width:100%;background:#fff}
.ad textarea{min-height:74px;resize:vertical}
.fl{display:block;font-size:12px;color:var(--muted);margin:0 0 3px}
.fg{margin-bottom:10px}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.sm{font-size:12.5px;color:var(--muted)}
.st{font-size:11px;border-radius:20px;padding:2px 8px;border:1px solid var(--line);color:var(--muted);background:#fff}
.st.n{background:#e9f7ee;color:#1c6b3c;border-color:#bfe6cd}
.lg{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#0b4f9c,#1a76d2);padding:20px}
.lg .box{background:#fff;border-radius:14px;padding:30px 28px;width:100%;max-width:380px;box-shadow:0 18px 50px rgba(3,20,40,.28)}
.lg h3{margin:0 0 4px;color:var(--navy);font-size:20px}
.lg p{margin:0 0 18px;color:var(--muted);font-size:13px}
.lg input{margin-bottom:10px;padding:10px 12px;border:1px solid #cfd8e3;border-radius:8px;width:100%;font:inherit}
.lg button{width:100%}
.lg .tip{font-size:12px;color:var(--muted);margin:12px 0 0;text-align:center}
.er{color:#a32626;font-size:13px}
table.td th:first-child,table.td td:first-child{white-space:nowrap}
.mask{position:fixed;inset:0;background:rgba(8,20,34,.5);display:none;align-items:flex-start;justify-content:center;z-index:99;padding:40px 16px;overflow:auto}
.mask.on{display:flex}
.dlg{background:#fff;border-radius:12px;width:100%;max-width:820px;padding:22px 24px}
.toast{position:fixed;left:50%;bottom:26px;transform:translateX(-50%);background:#0d1b2a;color:#fff;padding:10px 18px;border-radius:22px;font-size:13.5px;opacity:0;pointer-events:none;transition:.2s;z-index:120}
.toast.on{opacity:1}
@media(max-width:900px){
  .cats{grid-template-columns:repeat(2,1fr)} .cards{grid-template-columns:repeat(2,1fr)}
  .pd{grid-template-columns:1fr} .rel{grid-template-columns:1fr 1fr} .kpis{grid-template-columns:repeat(2,1fr)}
  .ft .cols{grid-template-columns:1fr}
}
@media(max-width:760px){
  .bug{display:block}
  .nav{position:fixed;inset:0 0 0 auto;width:270px;background:var(--navy);flex-direction:column;padding:70px 12px 20px;transform:translateX(102%);transition:.22s;overflow:auto;gap:0}
  .nav.on{transform:none;box-shadow:-12px 0 40px rgba(0,0,0,.25)}
  .nav a{padding:13px 14px;border-radius:8px}
  .mwrap{display:block}
  #mask{position:fixed;inset:0;background:rgba(6,16,28,.45);display:none;z-index:40}
  #mask.on{display:block}
  .hd .wrap{height:56px}
  .hero{padding:38px 0 34px}.hero h1{font-size:27px}
  .cards,.cats{grid-template-columns:1fr}
  section{padding:30px 0}
  .ad{flex-direction:column}
  .ad .side{width:100%;flex:none;position:sticky;top:0;z-index:30}
  .ad .side a{display:inline-block;border-left:0;border-bottom:2px solid transparent}
  .ad .side a.on{border-left:0;border-bottom-color:#fff}
  .ad .main{padding:16px 14px 50px}
  .row2{grid-template-columns:1fr}
  .tblwrap{overflow-x:auto}
}