:root{
  --primary:#1565C0;
  --primary-dark:#0D47A1;
  --primary-light:#1976D2;
  --accent-cyan:#26C6DA;
  --bg:#F5F7FA;
  --card:#FFFFFF;
  --text:#1F2733;
  --muted:#8A94A6;
  --border:#ECEFF3;
  --footer-bg:#0D2B5C;
  --footer-text:#FFFFFF;
  --footer-muted:rgba(255,255,255,.6);
  --footer-dim:rgba(255,255,255,.4);
  --footer-link:#4FC3F7;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"Noto Sans SC","Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"PingFang SC","Microsoft YaHei",sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
.container{max-width:1440px;margin:0 auto}

/* ===== Header ===== */
.header{
  background:#fff;
  border-bottom:1px solid var(--border);
  position:sticky;top:0;z-index:100;
  box-shadow:0 1px 0 rgba(0,0,0,.02);
}
.header-inner{
  max-width:1440px;margin:0 auto;
  height:72px;padding:0 64px;
  display:flex;align-items:center;justify-content:space-between;
}
.logo-wrap{display:flex;align-items:center;gap:10px}
.logo-wrap img{height:36px;width:auto;border-radius:8px;object-fit:contain}
.logo-en{font-size:13px;color:var(--muted);font-family:"Inter",sans-serif;font-weight:400}
.nav{display:flex;align-items:center;gap:32px}
.nav a{font-size:15px;color:var(--text);transition:color .15s}
.nav a:hover{color:var(--primary)}
.nav a.active{color:var(--primary);font-weight:600}
.nav-cta{
  display:flex;align-items:center;gap:6px;
  background:var(--primary);color:#fff;
  padding:10px 20px;border-radius:8px;
  font-size:14px;font-weight:600;font-family:"Inter",sans-serif;
  transition:background .15s;
}
.nav-cta:hover{background:var(--primary-dark)}
.nav-cta svg{width:14px;height:14px;flex-shrink:0}

/* ===== Hero ===== */
.hero{
  background:linear-gradient(135deg,#0D47A1 0%,#1976D2 55%,#26C6DA 100%);
  padding:80px 64px 72px;
  text-align:center;
  display:flex;flex-direction:column;align-items:center;gap:28px;
  box-shadow:0 4px 24px rgba(13,71,161,.15);
}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.125);
  border:1px solid rgba(255,255,255,.3);
  border-radius:999px;padding:6px 16px;
  font-size:13px;font-weight:500;color:#fff;
}
.hero-badge .dot{width:8px;height:8px;border-radius:50%;background:#4FC3F7}
.hero h1{
  font-size:56px;font-weight:900;color:#fff;
  letter-spacing:1px;line-height:1.1;
}
.hero-sub{
  font-size:18px;color:rgba(255,255,255,.8);
  max-width:600px;line-height:1.6;
}
.hero-stats{
  display:flex;gap:48px;justify-content:center;
}
.hero-stat{text-align:center}
.hero-stat .num{
  font-size:36px;font-weight:800;color:#fff;
  font-family:"Inter",sans-serif;line-height:1;
}
.hero-stat .label{
  font-size:14px;color:rgba(255,255,255,.6);
  margin-top:4px;
}
.search-wrap{
  width:100%;max-width:600px;height:56px;
  background:#fff;border-radius:999px;
  display:flex;align-items:center;justify-content:space-between;
  padding:0 8px 0 24px;
  box-shadow:0 12px 32px rgba(0,0,0,.15);
}
#q{
  flex:1;border:0;outline:none;background:transparent;
  font-size:15px;font-family:inherit;color:var(--text);
}
#q::placeholder{color:var(--muted)}
.search-btn{
  width:72px;height:40px;border:0;cursor:pointer;
  background:var(--primary);border-radius:999px;
  display:flex;align-items:center;justify-content:center;
  transition:background .15s;
}
.search-btn:hover{background:var(--primary-dark)}
.search-btn svg{width:18px;height:18px}

/* ===== Categories ===== */
.section{padding:64px}
.section-white{background:#fff}
.section-gray{background:var(--bg)}
.section-header{
  display:flex;justify-content:space-between;align-items:center;
  margin-bottom:32px;
}
.section-title{font-size:28px;font-weight:700;color:var(--primary-dark);line-height:1.2}
.section-sub{font-size:15px;color:var(--muted);margin-top:6px}
.section-more{font-size:14px;font-weight:500;color:var(--primary)}
.section-more:hover{text-decoration:underline}

.cat-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
}
.cat-card{
  background:var(--bg);border:1px solid var(--border);
  border-radius:16px;padding:28px;
  display:flex;flex-direction:column;gap:14px;
  min-height:240px;transition:.2s;
}
.cat-card:hover{transform:translateY(-4px);box-shadow:0 12px 32px rgba(21,101,192,.1)}
.cat-icon{
  width:48px;height:48px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
}
.cat-icon svg{width:28px;height:28px}
.cat-title{font-size:18px;font-weight:700;color:var(--text)}
.cat-desc{font-size:14px;color:var(--muted);line-height:1.6;flex:1}
.cat-count{font-size:13px;font-weight:500}

.cat-trd .cat-icon{background:#E3F2FD}
.cat-trd .cat-count{color:#1565C0}
.cat-pile .cat-icon{background:#FFF3E0}
.cat-pile .cat-count{color:#F57C00}
.cat-static .cat-icon{background:#E8F5E9}
.cat-static .cat-count{color:#2E7D32}
.cat-mjs .cat-icon{background:#F3E5F5}
.cat-mjs .cat-count{color:#7B1FA2}

/* ===== Pinned ===== */
.pinned-section{padding:56px 64px 24px;background:#fff}
.pinned-header{
  display:flex;justify-content:space-between;align-items:flex-end;
  margin-bottom:24px;
}
.pinned-title{
  font-size:24px;font-weight:700;color:var(--primary-dark);
  display:flex;align-items:center;gap:10px;
}
.pinned-title .pin-icon{
  width:24px;height:24px;display:flex;align-items:center;justify-content:center;
  background:#FFF3E0;border-radius:6px;
}
.pinned-title .pin-icon svg{width:14px;height:14px}
.pinned-sub{font-size:13px;color:var(--muted)}
.pinned-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:16px;
}
.pin-card{
  position:relative;background:linear-gradient(180deg,#fff 0%,#F8FAFD 100%);
  border:1px solid var(--border);border-radius:14px;
  padding:22px 20px 20px;display:flex;flex-direction:column;gap:10px;
  min-height:170px;cursor:pointer;transition:.2s;overflow:hidden;
}
.pin-card::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;
  background:var(--primary);border-radius:14px 0 0 14px;
}
.pin-card:hover{transform:translateY(-3px);box-shadow:0 10px 26px rgba(21,101,192,.12);border-color:#CFE0F5}
.pin-tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;padding:3px 10px;
  border-radius:999px;width:fit-content;
}
.pin-card .t{
  font-size:15px;font-weight:600;color:var(--text);line-height:1.45;flex:1;
}
.pin-card:hover .t{color:var(--primary)}
.pin-card .d{font-size:12px;color:var(--muted);font-family:"Inter",sans-serif}

/* ===== Category Tabs ===== */
.cat-tabs{
  display:flex;flex-wrap:wrap;gap:8px;margin-bottom:20px;
}
.cat-tab{
  border:1px solid var(--border);background:#fff;color:var(--text);
  padding:8px 18px;border-radius:999px;font-size:14px;font-weight:500;
  cursor:pointer;transition:.15s;font-family:inherit;
  display:inline-flex;align-items:center;gap:8px;
}
.cat-tab .tb-c{font-size:12px;color:var(--muted);font-weight:400}
.cat-tab:hover{border-color:var(--primary);color:var(--primary)}
.cat-tab.active{background:var(--primary);border-color:var(--primary);color:#fff}
.cat-tab.active .tb-c{color:rgba(255,255,255,.8)}

/* ===== Articles ===== */
.art-list{display:flex;flex-direction:column;gap:12px}
.art-row{
  background:#fff;border:1px solid var(--border);border-radius:12px;
  padding:20px 24px;display:flex;align-items:center;justify-content:space-between;
  gap:16px;transition:.15s;cursor:pointer;
}
.art-row:hover{
  transform:translateY(-1px);
  box-shadow:0 8px 22px rgba(21,101,192,.08);
  border-color:#CFE0F5;
}
.art-row .t{font-size:16px;font-weight:600;color:var(--text);flex:1}
.art-row:hover .t{color:var(--primary)}
.art-row .d{font-size:14px;color:var(--muted);white-space:nowrap;font-family:"Inter",sans-serif}
.art-empty{text-align:center;color:var(--muted);padding:48px 0}
.art-more-wrap{display:flex;justify-content:center;padding-top:8px}
.art-more{
  background:#fff;border:1.5px solid var(--primary);border-radius:8px;
  padding:12px 32px;font-size:15px;font-weight:500;color:var(--primary);
  cursor:pointer;transition:.15s;font-family:inherit;
}
.art-more:hover{background:var(--primary);color:#fff}

/* Pager */
.pager{
  display:flex;flex-wrap:wrap;gap:8px;justify-content:center;
  align-items:center;margin-top:32px;
}
.pager button{
  border:1px solid #D8DEE8;background:#fff;color:var(--text);
  min-width:40px;height:40px;padding:0 12px;border-radius:8px;
  cursor:pointer;font-size:14px;transition:.15s;font-family:inherit;
}
.pager button:hover:not(:disabled){border-color:var(--primary);color:var(--primary)}
.pager button.active{background:var(--primary);border-color:var(--primary);color:#fff;font-weight:700}
.pager button:disabled{opacity:.4;cursor:not-allowed}
.pager .gap{padding:0 4px;color:var(--muted)}
.pager .info{width:100%;text-align:center;color:var(--muted);font-size:13px;margin-top:8px}
.status{color:var(--muted);font-size:14px;margin-bottom:16px;min-height:1.2em}

/* ===== Partners ===== */
.partner-section{padding:48px 64px;background:#fff;text-align:center}
.partner-title{font-size:24px;font-weight:700;color:var(--primary-dark)}
.partner-sub{font-size:14px;color:var(--muted);margin-top:6px}
.partner-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:16px;
  max-width:900px;margin:32px auto 0;
}
.partner-card{
  background:var(--bg);border-radius:10px;padding:16px 20px;
  display:flex;align-items:center;gap:12px;justify-content:center;
  font-size:15px;font-weight:500;color:var(--text);transition:.15s;
}
.partner-card:hover{background:#E3F2FD;color:var(--primary)}
.partner-card .dot{width:8px;height:8px;border-radius:50%;background:var(--primary);flex-shrink:0}

/* ===== Footer ===== */
.footer{
  background:var(--footer-bg);color:var(--footer-text);
  padding:56px 64px 0;
}
.footer-main{
  display:flex;justify-content:space-between;align-items:flex-start;
  gap:48px;flex-wrap:wrap;
}
.footer-brand{max-width:360px;display:flex;flex-direction:column;gap:20px}
.footer-logo{display:flex;align-items:center;gap:10px}
.footer-logo img{height:40px;width:auto;border-radius:8px;object-fit:contain}
.footer-logo-en{font-size:13px;color:var(--footer-muted);font-family:"Inter",sans-serif}
.footer-desc{font-size:14px;color:rgba(255,255,255,.6);line-height:1.7}
.footer-domains{display:flex;flex-direction:column;gap:8px}
.footer-domains .label{font-size:13px;font-weight:600;color:rgba(255,255,255,.5)}
.footer-domains a{font-size:14px;color:var(--footer-link);font-family:"Inter",sans-serif}
.footer-domains a:hover{text-decoration:underline}
.footer-contact{min-width:280px;display:flex;flex-direction:column;gap:16px}
.footer-contact h3{font-size:16px;font-weight:600;color:#fff}
.contact-row{display:flex;align-items:center;gap:8px}
.contact-row .label{font-size:14px;color:rgba(255,255,255,.5)}
.contact-row .name{font-size:18px;font-weight:700;color:#fff}
.contact-row .phone{font-size:16px;font-weight:600;color:#fff;font-family:"Inter",sans-serif}
.contact-row .qq{font-size:14px;color:rgba(255,255,255,.6);font-family:"Inter",sans-serif}
.contact-row .wechat{font-size:14px;color:rgba(255,255,255,.6)}
.contact-row svg{width:16px;height:16px;flex-shrink:0}
.footer-qr{display:flex;gap:32px}
.qr-item{display:flex;flex-direction:column;align-items:center;gap:12px}
.qr-box{
  width:120px;height:120px;background:#fff;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  font-size:12px;color:var(--muted);text-align:center;padding:8px;
}
.qr-box svg{width:60px;height:60px;opacity:.3}
.qr-label{font-size:14px;font-weight:500;color:#fff;text-align:center}
.qr-sub{font-size:12px;color:var(--footer-muted);text-align:center}
.footer-bottom{
  display:flex;align-items:center;justify-content:center;gap:16px;
  padding:24px 0;border-top:1px solid rgba(255,255,255,.1);
  margin-top:40px;font-size:13px;color:var(--footer-muted);
  font-family:"Inter",sans-serif;
}
.footer-bottom .dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.3)}
.footer-bottom a{color:var(--footer-muted)}
.footer-bottom a:hover{color:#fff}

/* ===== Responsive ===== */
@media(max-width:1200px){
  .cat-grid{grid-template-columns:repeat(2,1fr)}
  .pinned-grid{grid-template-columns:repeat(2,1fr)}
  .partner-grid{grid-template-columns:repeat(2,1fr)}
  .footer-main{flex-direction:column}
}
@media(max-width:768px){
  .header-inner,.hero,.section,.partner-section,.footer,.pinned-section{padding-left:24px;padding-right:24px}
  .nav{display:none}
  .hero h1{font-size:36px}
  .hero-stats{gap:24px}
  .hero-stat .num{font-size:28px}
  .cat-grid{grid-template-columns:1fr}
  .pinned-grid{grid-template-columns:1fr}
  .partner-grid{grid-template-columns:1fr}
  .footer-qr{flex-direction:column;gap:24px}
  .art-row{flex-direction:column;align-items:flex-start;gap:8px}
  .art-row .d{font-size:13px}
}

/* ===== Article Page ===== */
.article-wrap{max-width:900px;margin:0 auto;padding:96px 24px 56px;}
.article-wrap h1{font-size:26px;line-height:1.5;color:#1A1A1A;margin:0 0 12px;font-weight:700;}
.article-wrap .meta{color:#8A94A6;font-size:14px;margin-bottom:28px;padding-bottom:20px;border-bottom:1px solid #ECEFF3;}
.article-wrap .content{background:#fff;border:1px solid #ECEFF3;border-radius:14px;padding:32px 36px;line-height:1.9;font-size:16px;color:#333;}
.article-wrap .content img{max-width:100%;height:auto;}
.article-wrap .content section{max-width:100% !important;}
@media(max-width:640px){.article-wrap{padding-top:80px}.article-wrap h1{font-size:21px}.article-wrap .content{padding:20px 18px}}