:root{
  --primary:#0B3D91;
  --primary-dark:#06285f;
  --primary-soft:#eaf1fc;
  --ink:#101828;
  --muted:#667085;
  --line:#e4e7ec;
  --surface:#ffffff;
  --page:#f5f7fb;
  --accent:#c72d2d;
  --radius:18px;
  --shadow:0 16px 45px rgba(11,61,145,.11);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  color:var(--ink);
  background:var(--page);
  font-family:"Microsoft YaHei","PingFang SC","Noto Sans CJK SC",Arial,sans-serif;
  line-height:1.65;
  overflow-x:hidden;
}
img{max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
.container{width:min(1180px,calc(100% - 40px));margin:0 auto}

.topbar{
  color:#dce8ff;
  background:var(--primary-dark);
  font-size:13px;
}
.topbar .container{
  min-height:38px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.topbar .contact{display:flex;align-items:center;gap:22px}
.topbar a{transition:color .2s ease}
.topbar a:hover{color:#fff}

.header{
  position:relative;
  z-index:50;
  background:rgba(255,255,255,.98);
  border-bottom:1px solid var(--line);
  box-shadow:0 4px 18px rgba(16,24,40,.04);
}
.header-inner{
  min-height:78px;
  display:flex;
  align-items:center;
  gap:28px;
}
.logo{
  display:flex;
  align-items:center;
  gap:11px;
  flex:0 0 auto;
  color:var(--primary-dark);
  font-size:20px;
  font-weight:800;
  letter-spacing:-.02em;
}
.logo img{
  width:42px;
  height:42px;
  border-radius:10px;
  object-fit:contain;
}
.main-nav{margin-left:auto;align-self:stretch}
.nav-list{
  height:100%;
  margin:0;
  padding:0;
  display:flex;
  align-items:stretch;
  list-style:none;
}
.nav-item{
  position:relative;
  display:flex;
  align-items:center;
}
.nav-link{
  height:100%;
  padding:0 13px;
  display:flex;
  align-items:center;
  color:#344054;
  font-size:15px;
  font-weight:650;
  white-space:nowrap;
  transition:color .2s ease;
}
.nav-link:hover,.nav-item:focus-within>.nav-link{color:var(--primary)}
.has-arrow::after{
  content:"";
  width:6px;
  height:6px;
  margin:0 0 4px 7px;
  border-right:1.5px solid currentColor;
  border-bottom:1.5px solid currentColor;
  transform:rotate(45deg);
  transition:transform .2s ease;
}
.nav-item:hover .has-arrow::after,
.nav-item:focus-within .has-arrow::after{transform:translateY(3px) rotate(225deg)}
.dropdown-panel,.mega-menu{
  position:absolute;
  top:100%;
  left:50%;
  z-index:80;
  visibility:hidden;
  opacity:0;
  transform:translate(-50%,10px);
  background:#fff;
  border:1px solid var(--line);
  border-radius:0 0 16px 16px;
  box-shadow:0 22px 50px rgba(16,24,40,.15);
  pointer-events:none;
  transition:opacity .2s ease,transform .2s ease,visibility .2s ease;
}
.dropdown-panel::before,.mega-menu::before{
  content:"";
  position:absolute;
  left:0;
  right:0;
  top:-10px;
  height:10px;
}
.nav-item:hover>.dropdown-panel,
.nav-item:focus-within>.dropdown-panel,
.nav-item:hover>.mega-menu,
.nav-item:focus-within>.mega-menu{
  visibility:visible;
  opacity:1;
  transform:translate(-50%,0);
  pointer-events:auto;
}
.dropdown-panel{
  width:340px;
  padding:12px;
}
.dropdown-panel>a:not(.mega-footer){
  display:flex;
  flex-direction:column;
  gap:2px;
  padding:10px 12px;
  border-radius:10px;
}
.dropdown-panel>a:not(.mega-footer):hover{background:var(--primary-soft)}
.dropdown-panel strong{
  overflow:hidden;
  color:#1d2939;
  font-size:14px;
  text-overflow:ellipsis;
  white-space:nowrap;
}
.dropdown-panel small{color:var(--muted)}
.mega-menu{
  width:min(760px,calc(100vw - 40px));
  padding:18px;
}
.nav-item:nth-last-child(-n+3) .mega-menu{
  left:auto;
  right:-90px;
  transform:translateY(10px);
}
.nav-item:nth-last-child(-n+3):hover>.mega-menu,
.nav-item:nth-last-child(-n+3):focus-within>.mega-menu{transform:translateY(0)}
.mega-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:10px;
}
.mega-grid+.mega-grid{
  margin-top:12px;
  padding-top:12px;
  border-top:1px solid var(--line);
}
.mega-grid>a{
  min-width:0;
  padding:11px;
  border:1px solid transparent;
  border-radius:11px;
  color:#344054;
  font-size:14px;
  transition:background .2s ease,border-color .2s ease,color .2s ease;
}
.mega-grid>a:hover{
  color:var(--primary);
  background:var(--primary-soft);
  border-color:#ccdaf2;
}
.mega-card{
  display:grid;
  grid-template-columns:auto 1fr;
  align-content:start;
  column-gap:9px;
}
.mega-card img{
  grid-row:1/3;
  width:32px;
  height:32px;
  border-radius:8px;
  object-fit:cover;
}
.mega-card strong{
  min-width:0;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}
.mega-card small{
  grid-column:1/-1;
  margin-top:5px;
  color:var(--muted);
  line-height:1.45;
}
.mega-card img+strong+small{grid-column:2}
.mega-footer{
  display:block;
  margin-top:13px;
  padding:10px 12px;
  color:var(--primary);
  background:var(--primary-soft);
  border-radius:10px;
  font-size:14px;
  font-weight:750;
  text-align:center;
}
.header-btns{
  display:flex;
  align-items:center;
  gap:9px;
  flex:0 0 auto;
}
.member-btn,.account-btn{
  min-height:40px;
  padding:8px 15px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:10px;
  font-size:14px;
  font-weight:750;
}
.member-btn{
  color:var(--primary);
  border:1px solid #b8cae9;
  background:#fff;
}
.account-btn{
  color:#fff;
  background:var(--primary);
  box-shadow:0 8px 20px rgba(11,61,145,.2);
}
.member-btn:hover{background:var(--primary-soft)}
.account-btn:hover{background:var(--primary-dark)}
.hamburger{
  width:43px;
  height:43px;
  padding:10px;
  display:none;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
  border:0;
  border-radius:10px;
  color:#fff;
  background:var(--primary);
  cursor:pointer;
}
.hamburger span{
  width:21px;
  height:2px;
  display:block;
  background:currentColor;
  border-radius:4px;
  transition:transform .2s ease,opacity .2s ease;
}
.hamburger.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.hamburger.active span:nth-child(2){opacity:0}
.hamburger.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.drawer-overlay{
  position:fixed;
  inset:0;
  z-index:90;
  visibility:hidden;
  opacity:0;
  background:rgba(6,20,44,.58);
  backdrop-filter:blur(3px);
  transition:opacity .25s ease,visibility .25s ease;
}
.drawer-overlay.open{visibility:visible;opacity:1}
.mobile-drawer{
  position:fixed;
  top:0;
  right:0;
  bottom:0;
  z-index:100;
  width:min(390px,88vw);
  overflow-y:auto;
  background:#fff;
  box-shadow:-20px 0 55px rgba(16,24,40,.22);
  transform:translateX(105%);
  transition:transform .28s ease;
}
.mobile-drawer.open{transform:translateX(0)}
.drawer-head{
  min-height:72px;
  padding:14px 18px;
  display:flex;
  align-items:center;
  gap:13px;
  color:#fff;
  background:var(--primary-dark);
}
.drawer-head strong{margin-right:auto}
.drawer-head>a{
  padding:7px 12px;
  border:1px solid rgba(255,255,255,.35);
  border-radius:8px;
}
.drawer-close{
  width:36px;
  height:36px;
  padding:0;
  color:#fff;
  background:rgba(255,255,255,.12);
  border:0;
  border-radius:50%;
  font-size:27px;
  line-height:1;
  cursor:pointer;
}
.drawer-menu{padding:15px}
.drawer-link,.drawer-toggle{
  width:100%;
  min-height:48px;
  padding:12px 13px;
  display:flex;
  align-items:center;
  color:#1d2939;
  background:transparent;
  border:0;
  border-bottom:1px solid #edf0f4;
  font-weight:700;
  text-align:left;
}
.drawer-toggle{
  position:relative;
  cursor:pointer;
}
.drawer-toggle::after{
  content:"+";
  position:absolute;
  right:13px;
  color:var(--primary);
  font-size:21px;
}
.drawer-toggle.active::after{content:"−"}
.drawer-submenu{
  max-height:0;
  overflow:hidden;
  padding:0 10px;
  background:#f7f9fc;
  border-radius:0 0 11px 11px;
  transition:max-height .3s ease,padding .3s ease;
}
.drawer-submenu.open{
  max-height:620px;
  padding:8px 10px;
}
.drawer-submenu a{
  padding:9px 11px;
  display:block;
  color:#475467;
  border-radius:8px;
  font-size:14px;
}
.drawer-submenu a:hover{
  color:var(--primary);
  background:#fff;
}

.tag-index-page{min-height:620px}
.tag-index-page .tag-hero{
  position:relative;
  overflow:hidden;
  padding:78px 0 70px;
  color:#fff;
  background:
    radial-gradient(circle at 82% 18%,rgba(255,255,255,.15) 0 2px,transparent 3px),
    radial-gradient(circle at 15% 75%,rgba(255,255,255,.12) 0 3px,transparent 4px),
    linear-gradient(135deg,var(--primary-dark),var(--primary) 62%,#1457b8);
}
.tag-index-page .tag-hero::before,
.tag-index-page .tag-hero::after{
  content:"";
  position:absolute;
  border:1px solid rgba(255,255,255,.15);
  border-radius:50%;
}
.tag-index-page .tag-hero::before{
  width:340px;
  height:340px;
  top:-190px;
  right:8%;
}
.tag-index-page .tag-hero::after{
  width:190px;
  height:190px;
  left:-80px;
  bottom:-115px;
}
.tag-index-page .breadcrumb{
  position:relative;
  z-index:1;
  display:flex;
  align-items:center;
  gap:9px;
  margin-bottom:20px;
  color:#cfe0ff;
  font-size:14px;
}
.tag-index-page .breadcrumb a:hover{color:#fff}
.tag-index-page .tag-kicker{
  position:relative;
  z-index:1;
  margin:0 0 10px;
  color:#bcd3fc;
  font-size:13px;
  font-weight:800;
  letter-spacing:.18em;
}
.tag-index-page h1{
  position:relative;
  z-index:1;
  max-width:800px;
  margin:0;
  font-size:clamp(38px,6vw,72px);
  line-height:1.06;
  letter-spacing:-.045em;
}
.tag-index-page .tag-lead{
  position:relative;
  z-index:1;
  max-width:720px;
  margin:22px 0 0;
  color:#e4edff;
  font-size:17px;
}
.tag-index-page .tag-directory{padding:64px 0 80px}
.tag-index-page .section-head{
  margin-bottom:28px;
  display:flex;
  align-items:end;
  justify-content:space-between;
  gap:24px;
}
.tag-index-page .section-head h2{
  margin:0 0 5px;
  color:#172b4d;
  font-size:30px;
  line-height:1.2;
}
.tag-index-page .section-head p{margin:0;color:var(--muted)}
.tag-index-page .index-mark{
  color:#98a2b3;
  font-size:13px;
  font-weight:750;
  letter-spacing:.1em;
}
.tag-index-page .tag-cloud{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:16px;
}
.tag-index-page .tag-item{
  position:relative;
  min-height:128px;
  overflow:hidden;
  padding:22px;
  display:flex;
  flex-direction:column;
  justify-content:space-between;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:0 7px 24px rgba(16,24,40,.04);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.tag-index-page .tag-item::after{
  content:"#";
  position:absolute;
  right:12px;
  bottom:-26px;
  color:rgba(11,61,145,.055);
  font-size:100px;
  font-weight:900;
  line-height:1;
}
.tag-index-page .tag-item:hover{
  transform:translateY(-5px);
  border-color:#a9bfdf;
  box-shadow:var(--shadow);
}
.tag-index-page .tag-name{
  position:relative;
  z-index:1;
  color:#1d2939;
  font-size:18px;
  font-weight:800;
}
.tag-index-page .tag-meta{
  position:relative;
  z-index:1;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  color:var(--muted);
  font-size:13px;
}
.tag-index-page .tag-arrow{
  width:28px;
  height:28px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  color:var(--primary);
  background:var(--primary-soft);
  border-radius:50%;
  font-size:17px;
}
.tag-index-page .tag-note{
  margin-top:34px;
  padding:24px 27px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:22px;
  background:#fff;
  border-left:4px solid var(--primary);
  border-radius:4px 14px 14px 4px;
  box-shadow:0 10px 30px rgba(16,24,40,.05);
}
.tag-index-page .tag-note strong{
  display:block;
  margin-bottom:4px;
  color:#1d2939;
  font-size:17px;
}
.tag-index-page .tag-note p{margin:0;color:var(--muted)}
.tag-index-page .tag-note a{
  flex:0 0 auto;
  padding:11px 18px;
  color:#fff;
  background:var(--primary);
  border-radius:10px;
  font-weight:750;
}

.footer{
  padding:58px 0 0;
  color:#c8d4e8;
  background:#071a38;
}
.footer-grid{
  padding-bottom:42px;
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:48px;
}
.footer-brand{
  margin-bottom:14px;
  color:#fff;
  font-size:24px;
  font-weight:850;
}
.footer p{margin:8px 0;color:#9fb0ca;font-size:14px}
.footer h3{
  margin:4px 0 16px;
  color:#fff;
  font-size:15px;
}
.footer-grid>div>a{
  margin:8px 0;
  display:block;
  color:#aebdd3;
  font-size:14px;
  transition:color .2s ease,transform .2s ease;
}
.footer-grid>div>a:hover{
  color:#fff;
  transform:translateX(3px);
}
.footer-bottom{
  padding:20px 0 24px;
  color:#879bb8;
  border-top:1px solid rgba(255,255,255,.1);
  font-size:13px;
  text-align:center;
}

@media (max-width:1100px){
  .main-nav{display:none}
  .hamburger{display:flex}
  .header-btns{margin-left:auto}
  .tag-index-page .tag-cloud{grid-template-columns:repeat(3,minmax(0,1fr))}
}
@media (max-width:820px){
  .container{width:min(100% - 28px,1180px)}
  .topbar .container{
    min-height:44px;
    align-items:flex-start;
    flex-direction:column;
    justify-content:center;
    gap:1px;
    padding:5px 0;
  }
  .topbar .contact{gap:13px;flex-wrap:wrap}
  .header-inner{min-height:68px}
  .logo span{max-width:180px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  .member-btn{display:none}
  .tag-index-page .tag-hero{padding:58px 0}
  .tag-index-page .tag-directory{padding:48px 0 62px}
  .tag-index-page .tag-cloud{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
}
@media (max-width:560px){
  .topbar .contact a:last-child{display:none}
  .logo img{width:37px;height:37px}
  .logo span{max-width:130px;font-size:17px}
  .account-btn{padding:7px 11px}
  .tag-index-page .tag-hero{padding:46px 0 50px}
  .tag-index-page h1{font-size:40px}
  .tag-index-page .tag-lead{font-size:15px}
  .tag-index-page .section-head{align-items:flex-start;flex-direction:column}
  .tag-index-page .tag-cloud{grid-template-columns:1fr}
  .tag-index-page .tag-item{min-height:112px}
  .tag-index-page .tag-note{align-items:flex-start;flex-direction:column}
  .footer-grid{grid-template-columns:1fr;gap:26px}
}