:root {
      --primary: #00D6C9;
      --secondary: #0b132b;
      --theme-white: rgb(250,250,250);
    }
    * { box-sizing: border-box; margin: 0; padding: 0; }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
      background-color: var(--theme-white);
      color: #1e293b;
    }
    
    
    .site-header{
      position:sticky;
      top:0;
      z-index:900;
      width:100%;
      background:rgba(255,255,255,.92);
      backdrop-filter:blur(16px);
      border-bottom:1px solid rgba(15,23,42,.08);
    }
    .header-inner{
      width:min(1200px, calc(100% - 32px));
      margin:0 auto;
      min-height:72px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:24px;
    }
    .logo{
      display:inline-flex;
      align-items:center;
      gap:12px;
      text-decoration:none;
    }
    .logo img{
      display:block;
      height:40px;
      width:auto;
      max-width:160px;
      object-fit:contain;
    }
    .logo span{
      font-size:18px;
      font-weight:800;
      color:#111827;
      white-space:nowrap;
    }
    .desktop-nav{
      display:flex;
      align-items:center;
      justify-content:flex-end;
      gap:8px;
      flex:1;
    }
    .desktop-nav a{
      padding:8px 16px;
      border-radius:999px;
      font-size:14px;
      font-weight:600;
      color:#334155;
      text-decoration:none;
    }
    .desktop-nav a:hover {
      background: rgba(0, 214, 201, 0.1);
      color: #00a399;
    }
    .mobile-menu-btn{
      display:none;
      width:44px;
      height:44px;
      border:0;
      border-radius:14px;
      background:rgba(15,23,42,.08);
      align-items:center;
      justify-content:center;
      flex-direction:column;
      gap:5px;
    }
    .mobile-menu-btn span{ display:block; width:20px; height:2px; background:#111827; }
    .mobile-nav-mask{
      position:fixed;
      inset:0;
      z-index:998;
      background:rgba(15,23,42,.54);
      opacity:0;
      visibility:hidden;
    }
    .mobile-drawer{
      position:fixed;
      top:0;
      left:0;
      z-index:999;
      width:min(86vw, 360px);
      height:100vh;
      background:#ffffff;
      transform:translateX(-105%);
      transition:transform .28s ease;
      display:flex;
      flex-direction:column;
    }
    .drawer-head{
      padding:18px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      border-bottom:1px solid rgba(15,23,42,.08);
    }
    .drawer-close{
      width:40px;
      height:40px;
      border:0;
      background:rgba(15,23,42,.08);
      font-size:24px;
      border-radius:14px;
    }
    .drawer-body{ padding:14px; }
    .drawer-nav{ display:flex; flex-direction:column; gap:8px; }
    .drawer-nav a{
      padding:13px 14px;
      border-radius:14px;
      background:rgba(15,23,42,.04);
      color:#111827;
      text-decoration:none;
      font-weight:700;
    }
    body.drawer-open .mobile-nav-mask{ opacity:1; visibility:visible; pointer-events:auto; }
    body.drawer-open .mobile-drawer{ transform:translateX(0); }

    
    .tag-hero {
      background: radial-gradient(circle at top, var(--secondary) 0%, #060d1a 100%);
      color: #ffffff;
      padding: 60px 0;
      text-align: center;
    }
    .tag-hero h1 { font-size: 32px; margin-bottom: 12px; }
    .tag-hero p { color: #94a3b8; max-width: 600px; margin: 0 auto; }

    .tag-section {
      width: min(1000px, calc(100% - 32px));
      margin: 60px auto 80px;
    }
    .tag-card {
      background: #ffffff;
      border-radius: 12px;
      border: 1px solid rgba(15,23,42,0.06);
      padding: 40px;
      box-shadow: 0 4px 12px rgba(0,0,0,0.02);
    }
    .tag-card h2 {
      font-size: 20px;
      color: #0f172a;
      margin-bottom: 30px;
      text-align: center;
    }
    .tag-cloud-list {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 16px;
    }
    .tag-cloud-item {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 10px 20px;
      border-radius: 999px;
      background: #f1f5f9;
      color: #475569;
      font-weight: 600;
      text-decoration: none;
      font-size: 15px;
      border: 1px solid transparent;
      transition: all 0.2s;
    }
    .tag-cloud-item:hover {
      background: rgba(0,214,201,0.1);
      color: #00a399;
      border-color: rgba(0,214,201,0.3);
      transform: translateY(-2px);
    }
    .tag-count {
      font-size: 11px;
      background: rgba(15,23,42,0.08);
      color: #64748b;
      padding: 2px 6px;
      border-radius: 99px;
    }

    @media (max-width: 900px) {
      .desktop-nav { display:none !important; }
      .mobile-menu-btn { display:inline-flex !important; }
    }

    
    .site-footer{
      width:100%;
      background:#0f172a;
      color:#e5e7eb;
      overflow:hidden;
    }
    .footer-inner{
      width:min(1200px, calc(100% - 32px));
      margin:0 auto;
      padding:54px 0 34px;
      display:grid;
      grid-template-columns:minmax(240px,1.4fr) repeat(3, minmax(150px, .8fr));
      gap:28px;
    }
    .footer-logo span{ color:#ffffff; }
    .footer-brand p{
      margin:18px 0 0;
      color:rgba(226,232,240,.78);
      line-height:1.8;
      font-size:14px;
    }
    .footer-column h3{ margin-bottom: 14px; color:#ffffff; font-size:15px; font-weight:800; }
    .footer-column ul{
      list-style:none; display:flex; flex-direction:column; gap:10px;
    }
    .footer-column a{ color:rgba(226,232,240,.78); font-size:14px; text-decoration:none; }
    .footer-bottom{
      width:min(1200px, calc(100% - 32px));
      margin:0 auto;
      padding:18px 0 24px;
      border-top:1px solid rgba(226,232,240,.12);
      display:flex;
      justify-content:space-between;
      color:rgba(226,232,240,.68);
      font-size:13px;
    }
    @media(max-width:900px){
      .footer-inner { grid-template-columns: 1fr 1fr; }
      .footer-brand { grid-column: span 2; }
    }
    @media(max-width:520px){
      .footer-inner { grid-template-columns: 1fr; }
      .footer-brand { grid-column: span 1; }
    }