:root{
  --primary:#0B3D91;
  --primary-dark:#06285f;
  --primary-soft:#eaf1fc;
  --accent:#f4c430;
  --red:#e53935;
  --green:#129447;
  --ink:#142033;
  --muted:#667085;
  --line:#dfe5ee;
  --surface:#ffffff;
  --surface-soft:#f5f7fb;
  --shadow:0 18px 45px rgba(11,61,145,.12);
  --radius:18px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  color:var(--ink);
  background:#f6f8fc;
  font-family:"Microsoft YaHei","PingFang SC","Noto Sans CJK SC",Arial,sans-serif;
  line-height:1.65;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
.container{width:min(1180px,calc(100% - 40px));margin:0 auto}

.topbar{
  color:#dbe8ff;
  background:var(--primary-dark);
  font-size:13px;
}
.topbar .container{
  min-height:36px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
}
.top-contact{display:flex;align-items:center;gap:20px}
.top-contact a{transition:color .2s ease}
.top-contact 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(20,32,51,.05);
}
.header-inner{
  min-height:78px;
  display:flex;
  align-items:center;
  gap:24px;
}
.logo{
  flex:0 0 auto;
  display:flex;
  align-items:center;
  gap:11px;
  color:var(--primary);
  font-size:20px;
  font-weight:900;
  letter-spacing:.02em;
}
.logo img{
  width:42px;
  height:42px;
  object-fit:contain;
  border-radius:10px;
}
.main-nav{margin-left:auto;align-self:stretch}
.nav-list{
  height:100%;
  display:flex;
  align-items:stretch;
  gap:2px;
  margin:0;
  padding:0;
  list-style:none;
}
.nav-list>li{
  position:relative;
  display:flex;
  align-items:stretch;
}
.nav-link{
  position:relative;
  display:flex;
  align-items:center;
  padding:0 13px;
  color:#344054;
  font-size:15px;
  font-weight:700;
  white-space:nowrap;
  transition:color .2s ease,background .2s ease;
}
.nav-link:hover,
.nav-list>li:focus-within>.nav-link{
  color:var(--primary);
  background:var(--primary-soft);
}
.nav-link.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);
}
.dropdown-panel,
.mega-menu{
  position:absolute;
  top:100%;
  left:0;
  z-index:60;
  visibility:hidden;
  opacity:0;
  transform:translateY(8px);
  pointer-events:none;
  background:#fff;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  transition:opacity .2s ease,transform .2s ease,visibility .2s;
}
.dropdown-panel::before,
.mega-menu::before{
  content:"";
  position:absolute;
  left:0;
  right:0;
  top:-12px;
  height:12px;
}
.dropdown-panel{
  width:310px;
  padding:10px;
  border-radius:0 0 14px 14px;
}
.drop-item{
  display:block;
  padding:10px 12px;
  color:#344054;
  border-radius:9px;
  font-size:14px;
}
.drop-item:hover{color:var(--primary);background:var(--primary-soft)}
.mega-menu{
  width:min(720px,calc(100vw - 40px));
  padding:22px;
  border-radius:0 0 18px 18px;
}
.nav-list>li:nth-last-child(-n+3) .mega-menu{left:auto;right:0}
.nav-list>li:hover>.dropdown-panel,
.nav-list>li:focus-within>.dropdown-panel,
.nav-list>li:hover>.mega-menu,
.nav-list>li:focus-within>.mega-menu{
  visibility:visible;
  opacity:1;
  transform:translateY(0);
  pointer-events:auto;
}
.mega-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:22px;
}
.mega-title{
  margin:0 0 10px;
  color:var(--primary);
  font-size:13px;
  font-weight:900;
  letter-spacing:.08em;
}
.mega-card{
  display:grid;
  grid-template-columns:auto 1fr;
  align-items:center;
  gap:9px;
  padding:10px;
  border-radius:10px;
  transition:background .2s ease,transform .2s ease;
}
.mega-card:hover{
  color:var(--primary);
  background:var(--primary-soft);
  transform:translateX(2px);
}
.mega-card img{
  grid-row:1/3;
  width:30px;
  height:30px;
  object-fit:contain;
  border-radius:7px;
}
.mega-card strong{
  min-width:0;
  overflow:hidden;
  font-size:14px;
  text-overflow:ellipsis;
  white-space:nowrap;
}
.mega-card small{
  grid-column:2;
  min-width:0;
  overflow:hidden;
  color:var(--muted);
  font-size:12px;
  line-height:1.45;
  text-overflow:ellipsis;
  white-space:nowrap;
}
.mega-card:not(:has(img)) strong,
.mega-card:not(:has(img)) small{grid-column:1/-1}
.meta{margin:0 0 16px;color:var(--muted);font-size:14px}
.mega-footer{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:40px;
  padding:8px 14px;
  color:#fff;
  background:var(--primary);
  border-radius:9px;
  font-size:14px;
  font-weight:800;
}
.mega-menu>.mega-footer{margin-top:16px}
.header-btns{
  flex:0 0 auto;
  display:flex;
  align-items:center;
  gap:8px;
}
.member-btn,
.account-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:40px;
  padding:8px 14px;
  border-radius:10px;
  font-size:14px;
  font-weight:800;
}
.member-btn{color:var(--primary);border:1px solid #b9c9e5;background:#fff}
.account-btn{color:#fff;background:var(--primary)}
.member-btn:hover{background:var(--primary-soft)}
.account-btn:hover{background:var(--primary-dark)}
.hamburger{
  display:none;
  width:42px;
  height:42px;
  padding:9px;
  border:0;
  border-radius:10px;
  background:var(--primary-soft);
  cursor:pointer;
}
.hamburger span{
  display:block;
  width:100%;
  height:2px;
  margin:5px 0;
  background:var(--primary);
  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:80;
  visibility:hidden;
  opacity:0;
  background:rgba(6,22,49,.56);
  transition:opacity .25s ease,visibility .25s;
}
.drawer-overlay.open{visibility:visible;opacity:1}
.mobile-drawer{
  position:fixed;
  top:0;
  right:0;
  bottom:0;
  z-index:90;
  width:min(390px,88vw);
  overflow-y:auto;
  background:#fff;
  box-shadow:-22px 0 50px rgba(6,22,49,.2);
  transform:translateX(105%);
  transition:transform .25s ease;
}
.mobile-drawer.open{transform:translateX(0)}
.drawer-head{
  position:sticky;
  top:0;
  z-index:2;
  min-height:68px;
  display:flex;
  align-items:center;
  gap:12px;
  padding:12px 18px;
  color:#fff;
  background:var(--primary);
}
.drawer-head>a{
  padding:7px 11px;
  border:1px solid rgba(255,255,255,.4);
  border-radius:8px;
  font-weight:700;
}
.drawer-close{
  width:38px;
  height:38px;
  margin-left:auto;
  color:#fff;
  background:transparent;
  border:0;
  font-size:31px;
  line-height:1;
  cursor:pointer;
}
.drawer-menu{padding:14px 18px 30px}
.drawer-link,
.drawer-toggle{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  min-height:50px;
  padding:10px 4px;
  color:#25344d;
  background:transparent;
  border:0;
  border-bottom:1px solid var(--line);
  font-weight:800;
  text-align:left;
  cursor:pointer;
}
.drawer-toggle::after{
  content:"+";
  color:var(--primary);
  font-size:20px;
}
.drawer-toggle.active::after{content:"−"}
.drawer-submenu{
  display:none;
  padding:6px 0 8px 14px;
  border-left:2px solid var(--primary-soft);
}
.drawer-submenu.open{display:block}
.drawer-submenu a{
  display:block;
  padding:9px 12px;
  color:var(--muted);
  border-radius:8px;
  font-size:14px;
}
.drawer-submenu a:hover{color:var(--primary);background:var(--primary-soft)}

.tag-page{min-height:620px}
.tag-page .tag-hero{
  position:relative;
  overflow:hidden;
  padding:66px 0 58px;
  color:#fff;
  background:
    radial-gradient(circle at 8% 12%,rgba(244,196,48,.24),transparent 24%),
    radial-gradient(circle at 90% 92%,rgba(74,144,245,.3),transparent 26%),
    linear-gradient(135deg,var(--primary-dark),var(--primary));
}
.tag-page .tag-hero::before,
.tag-page .tag-hero::after{
  content:"";
  position:absolute;
  border:1px solid rgba(255,255,255,.13);
  border-radius:26px;
  transform:rotate(15deg);
}
.tag-page .tag-hero::before{width:190px;height:90px;right:8%;top:20px}
.tag-page .tag-hero::after{width:130px;height:62px;left:5%;bottom:-22px}
.tag-page .breadcrumb{
  position:relative;
  z-index:1;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  margin-bottom:22px;
  color:#dbe8ff;
  font-size:14px;
}
.tag-page .breadcrumb a:hover{color:#fff;text-decoration:underline}
.tag-page .tag-heading{
  position:relative;
  z-index:1;
  max-width:820px;
}
.tag-page .tag-mark{
  display:inline-flex;
  align-items:center;
  min-height:32px;
  margin-bottom:14px;
  padding:5px 12px;
  color:#18325c;
  background:var(--accent);
  border-radius:999px;
  font-size:13px;
  font-weight:900;
}
.tag-page .tag-heading h1{
  margin:0;
  font-size:clamp(34px,5vw,58px);
  line-height:1.14;
  letter-spacing:-.03em;
}
.tag-page .tag-heading p{
  max-width:700px;
  margin:18px 0 0;
  color:#e3ecfb;
  font-size:17px;
}
.tag-page .tag-stats{
  position:relative;
  z-index:1;
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:24px;
}
.tag-page .tag-stats span{
  display:inline-flex;
  align-items:center;
  min-height:38px;
  padding:7px 13px;
  background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.2);
  border-radius:10px;
  backdrop-filter:blur(8px);
}
.tag-page .tag-content{padding:54px 0 76px}
.tag-page .section-head{
  display:flex;
  align-items:end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:24px;
}
.tag-page .section-head h2{
  margin:0;
  color:#17243a;
  font-size:28px;
  line-height:1.25;
}
.tag-page .section-head p{margin:4px 0 0;color:var(--muted)}
.tag-page .tag-index-link{
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  min-height:42px;
  padding:8px 15px;
  color:var(--primary);
  background:#fff;
  border:1px solid #cbd8ec;
  border-radius:10px;
  font-weight:800;
}
.tag-page .tag-index-link:hover{background:var(--primary-soft)}

.tag-page .article-list{
  display:grid;
  gap:18px;
}
.tag-page .article-card{
  min-width:0;
  display:grid;
  grid-template-columns:280px minmax(0,1fr);
  overflow:hidden;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:0 8px 26px rgba(24,42,72,.06);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.tag-page .article-card:hover{
  transform:translateY(-3px);
  border-color:#b7c9e6;
  box-shadow:var(--shadow);
}
.tag-page .article-cover{
  position:relative;
  min-height:230px;
  overflow:hidden;
  background:linear-gradient(135deg,#dbe7f8,#eef3fb);
}
.tag-page .article-cover img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .35s ease;
}
.tag-page .article-card:hover .article-cover img{transform:scale(1.035)}
.tag-page .article-cover .cover-tag{
  position:absolute;
  left:16px;
  top:16px;
  max-width:calc(100% - 32px);
  padding:5px 10px;
  overflow:hidden;
  color:#fff;
  background:rgba(11,61,145,.9);
  border-radius:7px;
  font-size:12px;
  font-weight:800;
  text-overflow:ellipsis;
  white-space:nowrap;
}
.tag-page .article-body{
  min-width:0;
  display:flex;
  flex-direction:column;
  padding:24px 26px;
}
.tag-page .article-body h3{
  margin:0 0 10px;
  color:#182640;
  font-size:22px;
  line-height:1.38;
}
.tag-page .article-body h3 a:hover{color:var(--primary)}
.tag-page .article-summary{
  display:-webkit-box;
  overflow:hidden;
  margin:0 0 16px;
  color:#59677c;
  font-size:15px;
  line-height:1.75;
  -webkit-box-orient:vertical;
  -webkit-line-clamp:3;
}
.tag-page .article-meta{
  display:flex;
  flex-wrap:wrap;
  gap:8px 16px;
  margin-top:auto;
  color:#7a8699;
  font-size:13px;
}
.tag-page .article-meta span{overflow-wrap:anywhere}
.tag-page .article-footer{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  margin-top:18px;
  padding-top:15px;
  border-top:1px solid #edf0f5;
}
.tag-page .article-tags{
  min-width:0;
  color:var(--primary);
  font-size:13px;
  overflow-wrap:anywhere;
}
.tag-page .read-more{
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  gap:7px;
  color:var(--primary);
  font-size:14px;
  font-weight:900;
}
.tag-page .read-more::after{content:"→";transition:transform .2s ease}
.tag-page .read-more:hover::after{transform:translateX(4px)}

.tag-page .pagination{
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:8px;
  margin-top:38px;
}
.tag-page .pagination a{
  min-width:42px;
  min-height:42px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:8px 13px;
  color:#46546a;
  background:#fff;
  border:1px solid var(--line);
  border-radius:10px;
  font-weight:700;
}
.tag-page .pagination a:hover,
.tag-page .pagination a.active,
.tag-page .pagination a.current{
  color:#fff;
  background:var(--primary);
  border-color:var(--primary);
}
.tag-page .tag-note{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  margin-top:46px;
  padding:25px 28px;
  color:#fff;
  background:linear-gradient(120deg,#0b3d91,#1762c5);
  border-radius:18px;
  box-shadow:var(--shadow);
}
.tag-page .tag-note h2{margin:0 0 5px;font-size:21px}
.tag-page .tag-note p{margin:0;color:#dce8fa}
.tag-page .tag-note a{
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:44px;
  padding:9px 17px;
  color:#18325c;
  background:var(--accent);
  border-radius:10px;
  font-weight:900;
}

.footer{
  color:#cbd6e8;
  background:#071a38;
}
.footer .container{padding-top:54px}
.footer-grid{
  display:grid;
  grid-template-columns:1.45fr 1fr 1fr 1fr;
  gap:36px;
}
.footer h3{
  margin:0 0 15px;
  color:#fff;
  font-size:16px;
}
.footer p{margin:0 0 12px;font-size:14px}
.footer-grid>div>a{
  display:block;
  width:max-content;
  max-width:100%;
  margin:8px 0;
  color:#cbd6e8;
  font-size:14px;
  overflow-wrap:anywhere;
}
.footer-grid>div>a:hover{color:#fff}
.footer-bottom{
  margin-top:38px;
  padding:20px 0 24px;
  border-top:1px solid rgba(255,255,255,.12);
  color:#9eacc2;
  font-size:13px;
  text-align:center;
}

@media (max-width:1080px){
  .main-nav{display:none}
  .hamburger{display:block}
  .header-inner{min-height:70px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:760px){
  .container{width:min(100% - 28px,1180px)}
  .topbar .container{
    min-height:42px;
    align-items:flex-start;
    flex-direction:column;
    justify-content:center;
    gap:1px;
    padding:6px 0;
  }
  .top-contact{flex-wrap:wrap;gap:2px 12px}
  .logo span{max-width:130px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  .member-btn{display:none}
  .account-btn{min-height:38px;padding:7px 11px}
  .tag-page .tag-hero{padding:48px 0 44px}
  .tag-page .tag-heading p{font-size:15px}
  .tag-page .tag-content{padding:38px 0 58px}
  .tag-page .section-head{align-items:flex-start;flex-direction:column}
  .tag-page .article-card{grid-template-columns:1fr}
  .tag-page .article-cover{min-height:210px;aspect-ratio:16/9}
  .tag-page .article-body{padding:20px}
  .tag-page .article-body h3{font-size:19px}
  .tag-page .article-footer{align-items:flex-start;flex-direction:column}
  .tag-page .tag-note{align-items:flex-start;flex-direction:column;padding:22px}
  .footer-grid{grid-template-columns:1fr;gap:25px}
}
@media (max-width:430px){
  .logo img{width:36px;height:36px}
  .logo span{font-size:17px}
  .account-btn{display:none}
  .tag-page .article-cover{min-height:180px}
}