:root {
      --theme: #0B3D91;
      --ink: #172033;
      --muted: #667085;
      --line: #e6eaf0;
      --soft: #f5f7fb;
      --white: #ffffff;
      --orange: #df7344;
      --shadow: 0 18px 50px rgba(19, 39, 78, .10);
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      color: var(--ink);
      background: #fbfcfe;
      font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
      line-height: 1.6;
    }

    a {
      color: inherit;
      text-decoration: none;
    }

    button {
      font: inherit;
    }

    img {
      max-width: 100%;
      display: block;
    }

    .container {
      width: min(1180px, calc(100% - 40px));
      margin: 0 auto;
    }

    .topbar {
      color: #dbe7ff;
      background: #101a2e;
      font-size: 13px;
    }

    .topbar-inner {
      min-height: 38px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
    }

    .topbar-links {
      display: flex;
      gap: 22px;
      color: #b9c7df;
    }

    .topbar a:hover {
      color: #fff;
    }

    .header {
      position: relative;
      z-index: 20;
      background: rgba(255, 255, 255, .97);
      border-bottom: 1px solid var(--line);
    }

    .header-inner {
      min-height: 76px;
      display: flex;
      align-items: center;
      gap: 28px;
    }

    .logo {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      min-width: 188px;
      color: var(--ink);
      font-weight: 800;
      font-size: 18px;
    }

    .logo img {
      width: 34px;
      height: 34px;
      object-fit: contain;
    }

    .main-nav {
      flex: 1;
    }

    .nav-list {
      display: flex;
      align-items: stretch;
      justify-content: center;
      gap: 2px;
      padding: 0;
      margin: 0;
      list-style: none;
    }

    .nav-item {
      position: relative;
    }

    .nav-link {
      min-height: 76px;
      display: inline-flex;
      align-items: center;
      padding: 0 15px;
      color: #354158;
      font-size: 14px;
      white-space: nowrap;
    }

    .nav-link:hover,
    .nav-link:focus-visible {
      color: var(--theme);
    }

    .has-arrow::after {
      content: "";
      width: 6px;
      height: 6px;
      margin: -3px 0 0 8px;
      border-right: 1px solid currentColor;
      border-bottom: 1px solid currentColor;
      transform: rotate(45deg);
    }

    .dropdown-panel,
    .mega-menu {
      position: absolute;
      top: 100%;
      left: 50%;
      z-index: 30;
      visibility: hidden;
      opacity: 0;
      transform: translate(-50%, 8px);
      transition: .2s ease;
      pointer-events: none;
      background: #fff;
      border: 1px solid var(--line);
      box-shadow: var(--shadow);
    }

    .dropdown-panel {
      width: 270px;
      padding: 20px;
    }

    .mega-menu {
      width: min(780px, 80vw);
      padding: 25px;
    }

    .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-title,
    .mega-title {
      margin: 0 0 12px;
      color: var(--theme);
      font-size: 13px;
      font-weight: 800;
      letter-spacing: .04em;
    }

    .dropdown-list,
    .mega-links {
      display: grid;
      gap: 8px;
    }

    .dropdown-list a,
    .mega-links a {
      color: #536077;
      font-size: 13px;
    }

    .dropdown-list a:hover,
    .mega-links a:hover {
      color: var(--theme);
    }

    .mega-grid {
      display: grid;
      grid-template-columns: .8fr 1.2fr;
      gap: 28px;
    }

    .mega-cards {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 10px;
    }

    .mega-card {
      display: flex;
      gap: 9px;
      min-width: 0;
      padding: 9px;
      color: #59667b;
      border: 1px solid #edf0f5;
      background: #fafbfe;
      font-size: 11px;
    }

    .mega-card:hover {
      border-color: #b9c9e8;
      background: #f2f6ff;
    }

    .mega-card img {
      width: 34px;
      height: 34px;
      flex: 0 0 34px;
      object-fit: cover;
      border-radius: 5px;
    }

    .mega-card span {
      min-width: 0;
    }

    .mega-card strong,
    .mega-card span span {
      display: block;
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
    }

    .mega-card strong {
      color: var(--ink);
      font-size: 12px;
      margin-bottom: 2px;
    }

    .mega-footer {
      display: inline-block;
      margin-top: 22px;
      color: var(--theme);
      font-size: 13px;
      font-weight: 700;
    }

    .header-btns {
      display: flex;
      align-items: center;
      gap: 12px;
      white-space: nowrap;
    }

    .member-link {
      color: var(--theme);
      font-size: 13px;
      font-weight: 700;
    }

    .account-link {
      padding: 10px 15px;
      color: #fff;
      background: var(--theme);
      border-radius: 4px;
      font-size: 13px;
      font-weight: 700;
    }

    .account-link:hover {
      background: #092f70;
    }

    .hamburger {
      display: none;
      width: 42px;
      height: 42px;
      padding: 9px;
      border: 1px solid var(--line);
      background: #fff;
      cursor: pointer;
    }

    .hamburger span {
      display: block;
      width: 22px;
      height: 2px;
      margin: 4px auto;
      background: var(--ink);
      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;
      visibility: hidden;
      opacity: 0;
      background: rgba(9, 20, 39, .48);
      transition: .2s ease;
    }

    .drawer-overlay.open {
      visibility: visible;
      opacity: 1;
    }

    .mobile-drawer {
      position: fixed;
      top: 0;
      right: 0;
      z-index: 50;
      width: min(360px, 88vw);
      height: 100vh;
      overflow-y: auto;
      visibility: hidden;
      transform: translateX(100%);
      background: #fff;
      transition: .25s ease;
    }

    .mobile-drawer.open {
      visibility: visible;
      transform: translateX(0);
    }

    .drawer-head {
      min-height: 70px;
      display: flex;
      align-items: center;
      gap: 14px;
      padding: 0 22px;
      color: #fff;
      background: var(--theme);
      font-weight: 700;
    }

    .drawer-head span {
      flex: 1;
    }

    .drawer-head a {
      color: #fff;
      font-size: 13px;
    }

    .drawer-close {
      width: 32px;
      height: 32px;
      padding: 0;
      border: 0;
      color: #fff;
      background: transparent;
      cursor: pointer;
      font-size: 26px;
      line-height: 1;
    }

    .drawer-menu {
      padding: 14px 22px 30px;
    }

    .drawer-link,
    .drawer-toggle {
      width: 100%;
      display: block;
      padding: 14px 0;
      color: var(--ink);
      border: 0;
      border-bottom: 1px solid var(--line);
      background: transparent;
      text-align: left;
      cursor: pointer;
      font-size: 15px;
    }

    .drawer-toggle::after {
      content: "+";
      float: right;
      color: var(--muted);
      font-size: 20px;
      line-height: 1;
    }

    .drawer-toggle.active {
      color: var(--theme);
    }

    .drawer-toggle.active::after {
      content: "−";
    }

    .drawer-submenu {
      display: none;
      padding: 5px 0 8px 14px;
    }

    .drawer-submenu.open {
      display: grid;
      gap: 9px;
    }

    .drawer-submenu a {
      color: var(--muted);
      font-size: 13px;
    }

    .footer {
      margin-top: 80px;
      color: #d2ddf2;
      background: #101a2e;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1fr;
      gap: 42px;
      padding: 54px 0 42px;
    }

    .footer-brand strong {
      color: #fff;
      font-size: 19px;
    }

    .footer-brand p {
      max-width: 290px;
      margin: 14px 0 0;
      color: #aebbd1;
      font-size: 13px;
    }

    .footer h3 {
      margin: 0 0 15px;
      color: #fff;
      font-size: 14px;
    }

    .footer-links {
      display: grid;
      gap: 9px;
      color: #aebbd1;
      font-size: 13px;
    }

    .footer-links a:hover {
      color: #fff;
    }

    .footer-bottom {
      display: flex;
      justify-content: space-between;
      gap: 20px;
      padding: 18px 0;
      color: #8292ae;
      border-top: 1px solid rgba(255, 255, 255, .1);
      font-size: 12px;
    }

    .tag-page {
      min-height: 620px;
    }

    .tag-hero {
      padding: 76px 0 48px;
      background:
        linear-gradient(135deg, rgba(11, 61, 145, .06), transparent 56%),
        #fff;
      border-bottom: 1px solid var(--line);
    }

    .tag-eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      margin: 0 0 15px;
      color: var(--theme);
      font-size: 13px;
      font-weight: 800;
      letter-spacing: .08em;
    }

    .tag-eyebrow::before {
      content: "#";
      width: 24px;
      height: 24px;
      display: grid;
      place-items: center;
      color: #fff;
      background: var(--orange);
      border-radius: 50%;
      font-size: 15px;
    }

    .tag-page h1 {
      margin: 0;
      color: var(--ink);
      font-size: clamp(32px, 5vw, 56px);
      line-height: 1.12;
    }

    .tag-intro {
      max-width: 680px;
      margin: 18px 0 0;
      color: var(--muted);
      font-size: 16px;
    }

    .tag-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 25px;
    }

    .tag-meta span {
      padding: 7px 12px;
      color: #4e5c73;
      border: 1px solid #dce3ef;
      border-radius: 20px;
      background: #f8faff;
      font-size: 12px;
    }

    .tag-content {
      padding: 48px 0 0;
    }

    .tag-content-head {
      display: flex;
      justify-content: space-between;
      align-items: end;
      gap: 20px;
      margin-bottom: 22px;
    }

    .tag-content h2 {
      margin: 0;
      font-size: 24px;
    }

    .tag-content-head p {
      margin: 0;
      color: var(--muted);
      font-size: 13px;
    }

    .tag-article-list {
      display: grid;
      gap: 16px;
    }

    .tag-article-card {
      display: grid;
      grid-template-columns: 210px minmax(0, 1fr);
      gap: 22px;
      min-height: 172px;
      padding: 16px;
      border: 1px solid var(--line);
      background: #fff;
      box-shadow: 0 8px 25px rgba(19, 39, 78, .045);
      transition: .2s ease;
    }

    .tag-article-card:hover {
      border-color: #b6c9e8;
      transform: translateY(-2px);
      box-shadow: var(--shadow);
    }

    .tag-article-card img {
      width: 100%;
      height: 140px;
      object-fit: cover;
      background: #e9eef7;
    }

    .tag-article-body {
      min-width: 0;
      display: flex;
      flex-direction: column;
    }

    .tag-article-label {
      margin-bottom: 5px;
      color: var(--orange);
      font-size: 12px;
      font-weight: 700;
    }

    .tag-article-body h3 {
      margin: 0;
      font-size: 19px;
      line-height: 1.4;
    }

    .tag-article-body h3 a:hover {
      color: var(--theme);
    }

    .tag-article-summary {
      display: -webkit-box;
      overflow: hidden;
      margin: 7px 0 12px;
      color: var(--muted);
      font-size: 13px;
      line-height: 1.7;
      -webkit-box-orient: vertical;
      -webkit-line-clamp: 2;
    }

    .tag-article-info {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: auto;
      color: #7a879b;
      font-size: 12px;
    }

    .tag-article-info strong {
      color: #536177;
      font-weight: 700;
    }

    .tag-article-cta {
      margin-left: auto;
      color: var(--theme);
      font-weight: 700;
    }

    .tag-pagination {
      display: flex;
      justify-content: center;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 36px;
    }

    .tag-pagination a {
      min-width: 36px;
      padding: 7px 12px;
      color: #59677b;
      border: 1px solid #dbe2ed;
      background: #fff;
      text-align: center;
      font-size: 13px;
    }

    .tag-pagination a:hover,
    .tag-pagination a.active {
      color: #fff;
      border-color: var(--theme);
      background: var(--theme);
    }

    @media (max-width: 1040px) {
      .header-inner {
        gap: 12px;
      }

      .logo {
        min-width: 155px;
      }

      .nav-link {
        padding: 0 9px;
      }

      .member-link {
        display: none;
      }
    }

    @media (max-width: 820px) {
      .container {
        width: min(100% - 30px, 620px);
      }

      .topbar-inner {
        padding: 8px 0;
        align-items: flex-start;
        flex-direction: column;
        gap: 3px;
      }

      .topbar-links {
        gap: 14px;
      }

      .header-inner {
        min-height: 68px;
      }

      .main-nav {
        display: none;
      }

      .hamburger {
        display: block;
      }

      .account-link {
        padding: 9px 12px;
      }

      .mega-grid {
        grid-template-columns: 1fr;
      }

      .tag-hero {
        padding: 52px 0 36px;
      }

      .tag-content-head {
        display: block;
      }

      .tag-content-head p {
        margin-top: 7px;
      }

      .tag-article-card {
        grid-template-columns: 1fr;
        gap: 15px;
      }

      .tag-article-card img {
        height: 190px;
      }

      .tag-article-cta {
        margin-left: 0;
      }

      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px 20px;
      }

      .footer-bottom {
        display: block;
      }

      .footer-bottom span {
        display: block;
        margin-top: 5px;
      }
    }

    @media (max-width: 480px) {
      .container {
        width: min(100% - 24px, 620px);
      }

      .topbar-links {
        display: grid;
        gap: 2px;
      }

      .header-btns {
        gap: 7px;
      }

      .logo {
        min-width: 0;
        flex: 1;
        font-size: 16px;
      }

      .account-link {
        font-size: 12px;
      }

      .tag-page h1 {
        font-size: 36px;
      }

      .tag-article-card img {
        height: 155px;
      }

      .tag-article-body h3 {
        font-size: 17px;
      }

      .footer-grid {
        grid-template-columns: 1fr;
      }
    }