:root {
      --theme: #0B3D91;
      --ink: #14213d;
      --muted: #667085;
      --line: #dfe5ee;
      --paper: #f5f7fb;
      --white: #ffffff;
      --accent: #f2b544;
      --shadow: 0 16px 45px rgba(20, 33, 61, .1);
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      color: var(--ink);
      background: var(--paper);
      font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
      line-height: 1.65;
    }
    body.drawer-locked { overflow: hidden; }
    a { color: inherit; text-decoration: none; }
    img { max-width: 100%; display: block; }
    button { font: inherit; }
    .container { width: min(1180px, calc(100% - 40px)); margin: 0 auto; }

    .topbar {
      color: #dce8fa;
      background: #081f49;
      font-size: 13px;
    }
    .topbar-inner {
      min-height: 38px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
    }
    .topbar-contact { display: flex; gap: 20px; }
    .topbar a:hover { color: #fff; }

    .header {
      position: relative;
      z-index: 20;
      background: var(--white);
      border-bottom: 1px solid var(--line);
    }
    .header-inner {
      min-height: 76px;
      display: flex;
      align-items: center;
      gap: 30px;
    }
    .logo {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      flex: 0 0 auto;
      font-size: 19px;
      font-weight: 800;
      color: var(--theme);
      white-space: nowrap;
    }
    .logo img { width: 34px; height: 34px; object-fit: contain; }
    .main-nav { flex: 1; }
    .nav-list {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 3px;
      padding: 0;
      margin: 0;
      list-style: none;
    }
    .nav-item { position: relative; }
    .nav-link {
      display: inline-flex;
      align-items: center;
      min-height: 76px;
      padding: 0 14px;
      color: #283754;
      font-size: 14px;
      font-weight: 700;
    }
    .nav-link:hover { color: var(--theme); }
    .has-arrow::after {
      content: "";
      width: 6px;
      height: 6px;
      margin-left: 8px;
      border-right: 1px solid currentColor;
      border-bottom: 1px solid currentColor;
      transform: rotate(45deg) translateY(-2px);
    }
    .dropdown-panel,
    .mega-menu {
      position: absolute;
      top: 100%;
      left: 50%;
      z-index: 30;
      width: 350px;
      padding-top: 10px;
      opacity: 0;
      visibility: hidden;
      transform: translate(-50%, 8px);
      transition: .2s ease;
    }
    .mega-menu { width: min(900px, 90vw); }
    .nav-item:hover > .dropdown-panel,
    .nav-item:focus-within > .dropdown-panel,
    .nav-item:hover > .mega-menu,
    .nav-item:focus-within > .mega-menu {
      opacity: 1;
      visibility: visible;
      transform: translate(-50%, 0);
    }
    .dropdown-shell,
    .mega-shell {
      padding: 22px;
      background: #fff;
      border: 1px solid var(--line);
      box-shadow: var(--shadow);
    }
    .dropdown-title,
    .mega-title {
      margin: 0 0 12px;
      color: var(--theme);
      font-size: 13px;
      font-weight: 800;
    }
    .dropdown-list { display: grid; gap: 7px; }
    .dropdown-list a,
    .mega-category-links a {
      display: block;
      padding: 7px 0;
      color: #3b4b68;
      font-size: 13px;
    }
    .dropdown-list a:hover,
    .mega-category-links a:hover { color: var(--theme); }
    .mega-layout {
      display: grid;
      grid-template-columns: 175px 1fr;
      gap: 25px;
    }
    .mega-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 9px;
    }
    .mega-card {
      display: flex;
      gap: 10px;
      min-width: 0;
      padding: 10px;
      border: 1px solid #e7ebf2;
      background: #fbfcfe;
    }
    .mega-card:hover { border-color: var(--theme); }
    .mega-card img {
      width: 38px;
      height: 38px;
      flex: 0 0 38px;
      object-fit: contain;
      background: #eef3fa;
    }
    .mega-card > span { min-width: 0; }
    .mega-card strong,
    .mega-summary,
    .mega-stats {
      display: block;
      overflow: hidden;
      text-overflow: ellipsis;
    }
    .mega-card strong { color: var(--ink); font-size: 12px; white-space: nowrap; }
    .mega-summary,
    .mega-stats { color: var(--muted); font-size: 11px; line-height: 1.5; }
    .mega-footer {
      display: inline-block;
      margin-top: 17px;
      color: var(--theme);
      font-size: 13px;
      font-weight: 800;
    }
    .header-btns {
      display: flex;
      align-items: center;
      gap: 14px;
      color: var(--theme);
      font-size: 13px;
      font-weight: 700;
      white-space: nowrap;
    }
    .hamburger {
      display: none;
      width: 42px;
      height: 40px;
      padding: 9px;
      border: 1px solid var(--line);
      background: #fff;
      cursor: pointer;
    }
    .hamburger span {
      display: block;
      width: 22px;
      height: 2px;
      margin: 4px auto;
      background: var(--theme);
      transition: .2s ease;
    }
    .hamburger.active span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
    .hamburger.active span:nth-child(2) { opacity: 0; }
    .hamburger.active span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

    .drawer-overlay {
      position: fixed;
      inset: 0;
      z-index: 40;
      background: rgba(7, 24, 53, .46);
      opacity: 0;
      visibility: hidden;
      transition: .2s ease;
    }
    .drawer-overlay.open { opacity: 1; visibility: visible; }
    .mobile-drawer {
      position: fixed;
      top: 0;
      right: 0;
      z-index: 50;
      width: min(390px, 88vw);
      height: 100vh;
      overflow-y: auto;
      background: #fff;
      transform: translateX(100%);
      transition: .25s ease;
    }
    .mobile-drawer.open { transform: translateX(0); }
    .drawer-head {
      display: flex;
      align-items: center;
      gap: 16px;
      padding: 20px;
      color: var(--theme);
      border-bottom: 1px solid var(--line);
      font-weight: 800;
    }
    .drawer-head > :first-child { flex: 1; }
    .drawer-close {
      width: 34px;
      height: 34px;
      border: 0;
      color: var(--theme);
      background: #eef3fa;
      cursor: pointer;
      font-size: 24px;
      line-height: 1;
    }
    .drawer-menu { padding: 12px 20px 30px; }
    .drawer-link,
    .drawer-toggle {
      display: block;
      width: 100%;
      padding: 14px 0;
      color: var(--ink);
      text-align: left;
      border: 0;
      border-bottom: 1px solid #edf0f5;
      background: transparent;
      cursor: pointer;
      font-weight: 700;
    }
    .drawer-toggle::after {
      content: "+";
      float: right;
      color: var(--theme);
      font-size: 18px;
    }
    .drawer-toggle.active::after { content: "-"; }
    .drawer-submenu {
      display: none;
      padding: 5px 0 8px 14px;
      border-left: 2px solid #dce8fa;
    }
    .drawer-submenu.open { display: block; }
    .drawer-submenu a {
      display: block;
      padding: 7px 0;
      color: var(--muted);
      font-size: 13px;
    }

    .tag-page { padding: 70px 0 90px; }
    .tag-intro {
      padding: 48px;
      color: #fff;
      background:
        linear-gradient(135deg, rgba(11,61,145,.96), rgba(8,31,73,.96)),
        repeating-linear-gradient(135deg, transparent 0 17px, rgba(255,255,255,.08) 18px 19px);
    }
    .tag-kicker {
      margin: 0 0 10px;
      color: #f7ca67;
      font-size: 13px;
      font-weight: 800;
      letter-spacing: 2px;
    }
    .tag-intro h1 {
      margin: 0;
      font-size: clamp(32px, 5vw, 58px);
      line-height: 1.15;
    }
    .tag-intro p {
      max-width: 680px;
      margin: 18px 0 0;
      color: #dce8fa;
    }
    .tag-toolbar {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      margin: 34px 0 18px;
    }
    .tag-toolbar h2 { margin: 0; font-size: 22px; }
    .tag-count { color: var(--muted); font-size: 14px; }
    .tag-article-list { display: grid; gap: 16px; }
    .tag-article {
      display: grid;
      grid-template-columns: 180px 1fr;
      gap: 22px;
      padding: 18px;
      background: #fff;
      border: 1px solid var(--line);
      transition: .2s ease;
    }
    .tag-article:hover { border-color: var(--theme); box-shadow: 0 10px 28px rgba(11,61,145,.08); }
    .tag-article img {
      width: 180px;
      height: 125px;
      object-fit: cover;
      background: #eaf0f8;
    }
    .tag-article-body { min-width: 0; }
    .tag-article-body h3 {
      margin: 0 0 8px;
      color: var(--ink);
      font-size: 20px;
      line-height: 1.35;
    }
    .tag-article-body h3 a:hover { color: var(--theme); }
    .tag-summary {
      display: -webkit-box;
      overflow: hidden;
      margin: 0 0 12px;
      color: var(--muted);
      -webkit-box-orient: vertical;
      -webkit-line-clamp: 3;
    }
    .tag-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 8px 18px;
      color: #7a8699;
      font-size: 12px;
    }
    .tag-meta strong { color: var(--theme); font-weight: 700; }
    .tag-read {
      display: inline-block;
      margin-top: 12px;
      color: var(--theme);
      font-size: 13px;
      font-weight: 800;
    }
    .pagination {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 32px;
    }
    .pagination a {
      min-width: 38px;
      padding: 7px 12px;
      color: var(--theme);
      text-align: center;
      background: #fff;
      border: 1px solid var(--line);
    }
    .pagination a:hover,
    .pagination a.active {
      color: #fff;
      background: var(--theme);
      border-color: var(--theme);
    }

    .footer {
      color: #cbd7ea;
      background: #081f49;
    }
    .footer-main {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1fr;
      gap: 42px;
      padding: 54px 0 42px;
    }
    .footer .logo { color: #fff; }
    .footer-brand p {
      max-width: 330px;
      margin: 18px 0;
      color: #aebfd9;
      font-size: 13px;
    }
    .footer h3 {
      margin: 4px 0 16px;
      color: #fff;
      font-size: 15px;
    }
    .footer-links,
    .footer-contact { display: grid; gap: 9px; }
    .footer-links a,
    .footer-contact span,
    .footer-contact a {
      color: #aebfd9;
      font-size: 13px;
    }
    .footer-links a:hover,
    .footer-contact a:hover { color: #fff; }
    .footer-contact strong { color: #fff; font-size: 12px; }
    .footer-bottom {
      display: flex;
      justify-content: space-between;
      gap: 20px;
      padding: 18px 0;
      color: #91a7c7;
      border-top: 1px solid rgba(255,255,255,.13);
      font-size: 12px;
    }

    @media (max-width: 1120px) {
      .main-nav { display: none; }
      .hamburger { display: block; }
      .header-inner { justify-content: space-between; }
      .footer-main { grid-template-columns: repeat(2, 1fr); }
    }
    @media (max-width: 680px) {
      .container { width: min(100% - 28px, 1180px); }
      .topbar-inner { align-items: flex-start; flex-direction: column; gap: 3px; padding: 9px 0; }
      .topbar-contact { flex-wrap: wrap; gap: 5px 14px; }
      .header-inner { min-height: 68px; gap: 12px; }
      .header-btns { gap: 8px; }
      .header-btns > :first-child { display: none; }
      .tag-page { padding: 38px 0 56px; }
      .tag-intro { padding: 30px 22px; }
      .tag-intro h1 { font-size: 34px; }
      .tag-toolbar { margin-top: 26px; }
      .tag-article { grid-template-columns: 1fr; gap: 15px; padding: 14px; }
      .tag-article img { width: 100%; height: 190px; }
      .tag-article-body h3 { font-size: 18px; }
      .footer-main { grid-template-columns: 1fr; gap: 28px; padding: 38px 0 30px; }
      .footer-bottom { align-items: flex-start; flex-direction: column; gap: 6px; }
    }