/* ============================================================
   全球贸易雷达 Global Trade Radar — 全站统一设计系统
   高端商业情报平台风格（参考 Bloomberg / McKinsey Insights）
   仅依赖 HTML5 + CSS3 + Vanilla JS，可直接运行于 GitHub Pages
   ============================================================ */

:root{
  --navy:#0d1b2a;
  --navy-2:#16273d;
  --navy-3:#1f3a5f;
  --blue:#2c5f8a;
  --blue-2:#3f7fb0;
  --blue-bg:#e8f1f7;
  --ink:#1c2b3a;
  --muted:#5b6b7d;
  --line:#e3e8ee;
  --bg:#f6f8fa;
  --card:#ffffff;
  --red:#c0392b;   --red-bg:#fdecea;
  --orange:#c46a16;--orange-bg:#fdf3e3;
  --gold:#9a7d0a;  --gold-bg:#fbf6df;
  --green:#1e7a4f; --green-bg:#e7f4ee;
  --purple:#6b5bd8;--purple-bg:#f1eefb;
  --shadow:0 1px 3px rgba(13,27,42,.06),0 8px 24px rgba(13,27,42,.05);
  --radius:12px;
  --maxw:1120px;
  --font:"PingFang SC","Microsoft YaHei","Segoe UI",Arial,sans-serif;
}

*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  font-family:var(--font);
  background:var(--bg);
  color:var(--ink);
  line-height:1.7;
  font-size:15px;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--blue);text-decoration:none;}
a:hover{text-decoration:underline;}
img{max-width:100%;display:block;}
.container{max-width:var(--maxw);margin:0 auto;padding:0 20px 70px;}

/* ---------------- 顶部导航 ---------------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:linear-gradient(135deg,var(--navy) 0%,var(--navy-2) 55%,var(--navy-3) 100%);
  color:#fff;box-shadow:0 2px 14px rgba(13,27,42,.35);
}
.header-inner{
  max-width:var(--maxw);margin:0 auto;padding:14px 20px;
  display:flex;align-items:center;gap:22px;flex-wrap:wrap;
}
.brand{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:800;letter-spacing:1px;color:#fff;}
.brand:hover{text-decoration:none;}
.brand .logo{font-size:24px;}
.brand small{display:block;font-size:10.5px;font-weight:400;letter-spacing:2.5px;color:rgba(255,255,255,.65);margin-top:1px;}
.main-nav{display:flex;align-items:center;gap:2px;flex-wrap:wrap;}
.main-nav a{
  color:rgba(255,255,255,.86);font-size:14px;padding:8px 12px;border-radius:8px;font-weight:500;
  transition:background .18s,color .18s;
}
.main-nav a:hover{background:rgba(255,255,255,.12);color:#fff;text-decoration:none;}
.main-nav a.active{background:rgba(255,255,255,.16);color:#fff;}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:10px;}
.search-box{position:relative;}
.search-box input{
  width:200px;padding:8px 14px 8px 34px;border:1px solid rgba(255,255,255,.28);
  background:rgba(255,255,255,.1);color:#fff;border-radius:999px;font-size:13px;outline:none;
  transition:width .2s,background .2s;
}
.search-box input::placeholder{color:rgba(255,255,255,.6);}
.search-box input:focus{width:260px;background:rgba(255,255,255,.18);}
.search-box .s-icon{position:absolute;left:12px;top:50%;transform:translateY(-50%);font-size:13px;color:rgba(255,255,255,.65);pointer-events:none;}
.search-results{
  position:absolute;top:calc(100% + 8px);right:0;width:340px;max-height:420px;overflow:auto;
  background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);
  display:none;z-index:200;
}
.search-results.show{display:block;}
.search-results a{display:block;padding:12px 16px;border-bottom:1px solid var(--line);color:var(--ink);}
.search-results a:hover{background:var(--blue-bg);text-decoration:none;}
.search-results a:last-child{border-bottom:none;}
.search-results .t{font-size:13.5px;font-weight:600;color:var(--navy);}
.search-results .d{font-size:12px;color:var(--muted);margin-top:2px;}
.search-results .none{padding:14px 16px;font-size:13px;color:var(--muted);}
.nav-toggle{
  display:none;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.25);color:#fff;
  border-radius:8px;padding:8px 12px;font-size:14px;cursor:pointer;
}

/* ---------------- 页头 Hero ---------------- */
.hero{
  background:linear-gradient(135deg,var(--navy) 0%,var(--navy-2) 55%,var(--navy-3) 100%);
  color:#fff;padding:52px 0 46px;
}
.hero-inner{max-width:var(--maxw);margin:0 auto;padding:0 20px;}
.breadcrumb{font-size:12.5px;color:rgba(255,255,255,.65);margin-bottom:14px;}
.breadcrumb a{color:rgba(255,255,255,.85);}
.breadcrumb a:hover{color:#fff;}
.hero h1{font-size:32px;line-height:1.3;letter-spacing:.5px;font-weight:800;}
.hero .sub{font-size:15px;color:rgba(255,255,255,.78);margin-top:12px;max-width:760px;line-height:1.8;}
.hero .meta{margin-top:18px;display:flex;gap:10px;flex-wrap:wrap;}
.chip{
  display:inline-block;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.25);
  border-radius:999px;padding:5px 14px;font-size:12.5px;color:#fff;
}
.chip.gold{border-color:rgba(240,196,69,.6);background:rgba(240,196,69,.14);}
.hero-buttons{margin-top:24px;display:flex;gap:12px;flex-wrap:wrap;}
.btn{
  display:inline-block;padding:11px 22px;border-radius:9px;font-size:14px;font-weight:600;cursor:pointer;
  transition:transform .15s,box-shadow .15s;
}
.btn:hover{text-decoration:none;transform:translateY(-1px);}
.btn-primary{background:var(--blue-2);color:#fff;box-shadow:0 4px 14px rgba(63,127,176,.35);}
.btn-primary:hover{background:#4a8cc0;}
.btn-ghost{background:rgba(255,255,255,.1);color:#fff;border:1px solid rgba(255,255,255,.35);}
.btn-ghost:hover{background:rgba(255,255,255,.2);}

/* ---------------- 区块 ---------------- */
section{margin-top:44px;}
.section-head{display:flex;align-items:baseline;gap:12px;margin-bottom:18px;flex-wrap:wrap;}
.section-head h2{font-size:22px;color:var(--navy);letter-spacing:.5px;}
.section-head .tag{font-size:12.5px;color:var(--muted);}
.section-head .more{margin-left:auto;font-size:13px;}

.market-head{display:flex;align-items:center;gap:10px;border-left:5px solid var(--blue);padding-left:12px;margin-bottom:8px;flex-wrap:wrap;}
.market-head h2{font-size:21px;color:var(--navy);}
.market-head .tag{font-size:12px;color:var(--muted);}
.market-intro{font-size:13.5px;color:var(--muted);margin-bottom:16px;}

/* ---------------- 卡片 ---------------- */
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:18px 20px;margin-bottom:14px;box-shadow:var(--shadow);
}
.card h3{font-size:16.5px;line-height:1.55;margin-bottom:8px;}
.card .date{font-size:12px;color:var(--muted);}
.summary{font-size:14px;color:var(--ink);margin-top:6px;}

.badge{display:inline-block;font-size:12px;font-weight:700;border-radius:6px;padding:2px 10px;margin-bottom:8px;}
.badge.s{background:var(--red-bg);color:var(--red);}
.badge.a{background:var(--orange-bg);color:var(--orange);}
.badge.b{background:var(--gold-bg);color:var(--gold);}

/* 市场色块 */
.market-block{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px;margin-bottom:22px;box-shadow:var(--shadow);}
.mb-uk{border-top:4px solid var(--blue-2);}
.mb-eu{border-top:4px solid var(--green);}
.mb-us{border-top:4px solid var(--purple);}
.market-block .mb-head{display:flex;align-items:center;gap:10px;margin-bottom:12px;}
.market-block .mb-head .flag{font-size:24px;}
.market-block .mb-head h3{font-size:19px;color:var(--navy);}

.quick{background:var(--blue-bg);border:1px solid #cfe3f6;border-radius:10px;padding:14px 18px;margin-bottom:16px;font-size:14.5px;}
.quick b.tag{display:block;font-size:15px;margin-bottom:6px;color:var(--navy);}
.quick p{margin:4px 0;}

.deep{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px 22px;margin-top:14px;box-shadow:var(--shadow);}
.deep h3{font-size:16px;color:var(--navy);border-bottom:2px solid var(--blue-bg);padding-bottom:8px;margin-bottom:12px;}
.deep h4{font-size:14px;margin:14px 0 6px;color:var(--blue);}
.deep p,.deep li{font-size:13.8px;}
.deep ul{padding-left:20px;margin-top:4px;}
.deep .module{background:var(--blue-bg);border-radius:8px;padding:12px 14px;margin-top:10px;font-size:13.5px;}
.deep .module strong{color:var(--navy);}
.check{list-style:none;padding-left:0;}
.check li{padding-left:26px;position:relative;margin:7px 0;font-size:14px;}
.check li::before{content:"☑";position:absolute;left:0;color:var(--green);font-weight:700;}

/* 表格 */
.tbl-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;border-radius:var(--radius);box-shadow:var(--shadow);border:1px solid var(--line);}
table{width:100%;border-collapse:collapse;background:#fff;font-size:13.5px;min-width:560px;}
th{background:var(--navy);color:#fff;padding:11px 14px;text-align:left;font-weight:600;}
td{padding:11px 14px;border-bottom:1px solid var(--line);vertical-align:top;}
tr:last-child td{border-bottom:none;}
tbody tr:nth-child(even) td{background:#f8fafc;}

/* 行动建议 */
.action-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:14px;}
.action-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow);}
.action-card h3{font-size:15px;margin-bottom:10px;}
.action-card.w{border-top:4px solid var(--red);}
.action-card.o{border-top:4px solid var(--orange);}
.action-card.g{border-top:4px solid var(--green);}
.action-card ol{padding-left:20px;font-size:13.5px;}
.action-card li{margin:7px 0;}

/* 知识库 / 资产 / 来源 */
.kb{background:#fff;border-left:5px solid var(--green);border-radius:0 var(--radius) var(--radius) 0;padding:20px 22px;border:1px solid var(--line);border-left-width:5px;}
.kb h3{font-size:16px;margin-bottom:8px;}
.kb p,.kb li{font-size:13.8px;}
.assets{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px 22px;box-shadow:var(--shadow);}
.assets h3{font-size:15px;color:var(--navy);margin:12px 0 6px;}
.assets .first{margin-top:0;}
.assets p,.assets li{font-size:13.5px;}
.sources{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px 22px;box-shadow:var(--shadow);}
.sources h3{font-size:15px;margin-bottom:10px;}
.source-item{display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap;padding:8px 0;border-bottom:1px dashed var(--line);font-size:12.8px;}
.source-item:last-child{border-bottom:none;}
.source-item a{color:var(--blue);word-break:break-all;}
.trust{flex-shrink:0;font-size:11.5px;border-radius:5px;padding:1px 8px;}
.t-hi{background:var(--green-bg);color:var(--green);}
.t-mid{background:var(--blue-bg);color:var(--blue);}
.t-note{background:var(--gold-bg);color:var(--gold);}

.hl{background:var(--blue-bg);border-left:4px solid var(--blue-2);padding:10px 16px;border-radius:8px;margin:12px 0;font-size:14px;}

/* ---------------- 首页专用 ---------------- */
.home-hero{padding:64px 0 58px;background:linear-gradient(135deg,var(--navy) 0%,var(--navy-2) 50%,#224a70 100%);}
.home-hero h1{font-size:40px;}
.home-hero .sub{font-size:16px;}
.hero-pill{display:inline-block;background:rgba(240,196,69,.14);border:1px solid rgba(240,196,69,.5);color:#ffd479;border-radius:999px;padding:6px 16px;font-size:12.5px;margin-bottom:18px;letter-spacing:1px;}

.report-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:16px;}
.report-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px;
  box-shadow:var(--shadow);display:flex;flex-direction:column;gap:10px;transition:transform .18s,box-shadow .18s;
}
.report-card:hover{transform:translateY(-3px);box-shadow:0 10px 28px rgba(13,27,42,.10);text-decoration:none;}
.report-card .date-badge{font-size:12px;font-weight:700;color:var(--blue);background:var(--blue-bg);display:inline-block;padding:3px 10px;border-radius:6px;width:fit-content;}
.report-card h3{font-size:16.5px;color:var(--navy);line-height:1.5;}
.report-card p{font-size:13.5px;color:var(--muted);line-height:1.7;}
.report-card .tags{display:flex;gap:6px;flex-wrap:wrap;margin-top:auto;}
.report-card .tags span{font-size:11.5px;color:var(--muted);background:var(--bg);border:1px solid var(--line);padding:2px 8px;border-radius:5px;}

.market-map{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:16px;}
.market-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;
  box-shadow:var(--shadow);position:relative;overflow:hidden;transition:transform .18s,box-shadow .18s;display:block;
}
.market-card:hover{transform:translateY(-3px);box-shadow:0 10px 28px rgba(13,27,42,.10);text-decoration:none;}
.market-card .flag{font-size:30px;}
.market-card h3{font-size:20px;color:var(--navy);margin:10px 0 4px;}
.market-card p{font-size:13.5px;color:var(--muted);line-height:1.75;}
.market-card .mk{display:inline-block;font-size:12px;padding:3px 10px;border-radius:6px;margin-top:14px;font-weight:600;}
.mk-uk{background:var(--blue-bg);color:var(--blue);}
.mk-eu{background:var(--green-bg);color:var(--green);}
.mk-us{background:var(--purple-bg);color:var(--purple);}

.industry-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:14px;}
.industry-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px;
  box-shadow:var(--shadow);transition:transform .18s,box-shadow .18s;display:block;
}
.industry-card:hover{transform:translateY(-3px);box-shadow:0 10px 28px rgba(13,27,42,.10);text-decoration:none;}
.industry-card .ico{font-size:22px;}
.industry-card h3{font-size:15.5px;color:var(--navy);margin:8px 0 6px;}
.industry-card p{font-size:12.8px;color:var(--muted);line-height:1.7;}

.insight-box{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);}
.insight-box h3{font-size:17px;color:var(--navy);margin-bottom:10px;}
.insight-box p{font-size:14px;color:var(--ink);}

/* ---------------- 分类索引 ---------------- */
.cat-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:16px;}
.cat-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px 20px;box-shadow:var(--shadow);}
.cat-item h3{font-size:16px;color:var(--navy);margin-bottom:8px;}
.cat-item ul{list-style:none;}
.cat-item li{padding:6px 0;border-bottom:1px dashed var(--line);font-size:13.5px;}
.cat-item li:last-child{border-bottom:none;}
.cat-item li a{display:flex;justify-content:space-between;gap:10px;align-items:center;}
.cat-item li a .date{font-size:12px;color:var(--muted);flex-shrink:0;}

/* ---------------- 页脚 ---------------- */
.site-footer{background:var(--navy);color:rgba(255,255,255,.75);margin-top:60px;padding:44px 0 30px;font-size:13px;}
.footer-inner{max-width:var(--maxw);margin:0 auto;padding:0 20px;display:grid;grid-template-columns:2fr 1fr 1fr;gap:32px;}
.footer-inner h4{color:#fff;font-size:14.5px;margin-bottom:12px;letter-spacing:.5px;}
.footer-inner a{color:rgba(255,255,255,.75);display:block;margin:5px 0;}
.footer-inner a:hover{color:#fff;}
.footer-brand{font-size:17px;font-weight:800;color:#fff;margin-bottom:8px;}
.footer-copy{max-width:var(--maxw);margin:26px auto 0;padding:18px 20px 0;border-top:1px solid rgba(255,255,255,.12);display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:12px;color:rgba(255,255,255,.5);}

.divider{height:1px;background:var(--line);margin:30px 0;}

/* 回到顶部 */
.to-top{
  position:fixed;right:22px;bottom:22px;width:44px;height:44px;border-radius:50%;
  background:var(--navy);color:#fff;border:none;font-size:18px;cursor:pointer;
  box-shadow:0 6px 18px rgba(13,27,42,.3);display:none;z-index:90;
}
.to-top.show{display:block;}

/* ---------------- 响应式 ---------------- */
@media(max-width:900px){
  .nav-toggle{display:block;}
  .main-nav{
    display:none;width:100%;flex-direction:column;align-items:stretch;padding-top:6px;
  }
  .main-nav.open{display:flex;}
  .main-nav a{padding:10px 12px;}
  .nav-right{margin-left:0;width:100%;}
  .search-box{flex:1;}
  .search-box input{width:100%;}
  .search-box input:focus{width:100%;}
  .search-results{width:100%;right:auto;left:0;}
  .footer-inner{grid-template-columns:1fr 1fr;gap:24px;}
  .home-hero h1{font-size:30px;}
  .hero h1{font-size:26px;}
}
@media(max-width:600px){
  body{font-size:14px;}
  .container{padding:0 14px 50px;}
  .header-inner{padding:12px 14px;gap:12px;}
  .footer-inner{grid-template-columns:1fr;}
  .card,.deep,.market-block{padding:15px 16px;}
  th,td{padding:9px 10px;}
  .report-list,.market-map{grid-template-columns:1fr;}
  .home-hero{padding:44px 0 40px;}
}


/* ============ 二维码卡片（咨询 / 打赏） ============ */
.qr-grid{display:flex;flex-wrap:wrap;gap:18px;justify-content:center;}
.qr-card{flex:1 1 240px;max-width:280px;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px 16px;text-align:center;box-shadow:var(--shadow);}
.qr-card img{width:100%;max-width:190px;height:auto;border-radius:10px;display:block;margin:0 auto 12px;border:1px solid var(--line);}
.qr-card h3{font-size:15px;margin:0 0 6px;color:var(--ink);}
.qr-card p{font-size:12.5px;color:var(--muted);margin:0;line-height:1.7;}
.qr-mini{display:flex;gap:28px;justify-content:center;flex-wrap:wrap;margin-top:16px;padding-top:14px;border-top:1px dashed var(--line);}
.qr-mini .item{text-align:center;color:var(--muted);font-size:12.5px;line-height:1.5;}
.qr-mini .item img{width:112px;height:auto;border-radius:10px;display:block;margin:0 auto 6px;border:1px solid var(--line);background:#fff;}
@media(max-width:600px){
  .qr-card{flex:1 1 100%;max-width:100%;}
  .qr-card img{max-width:200px;}
  .qr-mini{gap:18px;}
  .qr-mini .item img{width:104px;}
}