:root {
      --theme: #0B3D91;
      --template-theme: {主题色};
      --accent: #d61f69;
      --accent-dark: #a9144e;
      --ink: #172033;
      --muted: #667085;
      --line: #e5e9f0;
      --surface: #f5f7fa;
      --white: #ffffff;
      --success: #16805c;
      --shadow: 0 16px 40px rgba(23, 32, 51, 0.09);
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      color: var(--ink);
      background: var(--surface);
      font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
      line-height: 1.7;
      letter-spacing: 0;
    }

    body.drawer-locked {
      overflow: hidden;
    }

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

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

    button,
    input,
    textarea,
    select {
      font: inherit;
    }

    button {
      color: inherit;
    }

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

    .topbar {
      color: #dce8ff;
      background: #082b67;
      font-size: 13px;
    }

    .topbar-inner {
      min-height: 38px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
    }

    .topbar-contact {
      display: flex;
      align-items: center;
      gap: 22px;
      white-space: nowrap;
    }

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

    .header {
      position: relative;
      z-index: 50;
      background: var(--white);
      border-bottom: 1px solid var(--line);
    }

    .header-inner {
      min-height: 78px;
      display: flex;
      align-items: center;
      gap: 24px;
    }

    .logo {
      min-width: 180px;
      display: inline-flex;
      align-items: center;
      gap: 11px;
      color: var(--theme);
      font-size: 20px;
      font-weight: 800;
      line-height: 1.2;
    }

    .logo img {
      width: 42px;
      height: 42px;
      object-fit: contain;
    }

    .main-nav {
      min-width: 0;
      flex: 1;
    }

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

    .nav-item {
      position: static;
      display: flex;
      align-items: stretch;
    }

    .nav-link {
      min-height: 78px;
      padding: 0 13px;
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: #30394b;
      font-size: 15px;
      font-weight: 700;
      white-space: nowrap;
      border-bottom: 3px solid transparent;
    }

    .nav-link:hover,
    .nav-item:focus-within > .nav-link {
      color: var(--theme);
      border-bottom-color: var(--accent);
    }

    .has-arrow::after {
      content: "";
      width: 6px;
      height: 6px;
      margin-top: -3px;
      border-right: 1.5px solid currentColor;
      border-bottom: 1.5px solid currentColor;
      transform: rotate(45deg);
      transition: transform 0.2s ease;
    }

    .nav-item:hover .has-arrow::after,
    .nav-item:focus-within .has-arrow::after {
      margin-top: 3px;
      transform: rotate(225deg);
    }

    .dropdown-panel,
    .mega-menu {
      position: absolute;
      top: 100%;
      z-index: 80;
      visibility: hidden;
      opacity: 0;
      pointer-events: none;
      background: var(--white);
      border: 1px solid var(--line);
      box-shadow: var(--shadow);
      transform: translateY(8px);
      transition: opacity 0.18s ease, transform 0.18s ease, visibility 0.18s ease;
    }

    .dropdown-panel::before,
    .mega-menu::before {
      content: "";
      position: absolute;
      right: 0;
      bottom: 100%;
      left: 0;
      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;
      pointer-events: auto;
      transform: translateY(0);
    }

    .dropdown-panel {
      width: 330px;
      margin-left: -30px;
      padding: 18px;
      border-radius: 0 0 6px 6px;
    }

    .dropdown-title {
      display: block;
      margin-bottom: 10px;
      color: var(--theme);
      font-size: 13px;
      font-weight: 800;
    }

    .dropdown-panel > a:not(.dropdown-main) {
      padding: 9px 0;
      display: block;
      overflow: hidden;
      color: #3f485a;
      font-size: 14px;
      white-space: nowrap;
      text-overflow: ellipsis;
      border-bottom: 1px solid #edf0f4;
    }

    .dropdown-panel > a:hover {
      color: var(--accent);
    }

    .dropdown-main {
      margin-top: 12px;
      padding: 10px 12px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      color: var(--white);
      background: var(--theme);
      border-radius: 4px;
      font-size: 13px;
      font-weight: 700;
    }

    .mega-menu {
      right: max(20px, calc((100vw - 1180px) / 2));
      left: max(20px, calc((100vw - 1180px) / 2));
      padding: 22px;
      border-radius: 0 0 6px 6px;
    }

    .mega-head {
      margin-bottom: 16px;
      padding-bottom: 13px;
      display: flex;
      align-items: baseline;
      justify-content: space-between;
      gap: 20px;
      border-bottom: 1px solid var(--line);
    }

    .mega-head strong {
      color: var(--theme);
      font-size: 18px;
    }

    .mega-head span {
      color: var(--muted);
      font-size: 13px;
    }

    .mega-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 12px;
    }

    .mega-card {
      min-width: 0;
      padding: 14px;
      color: #344054;
      background: #f8fafc;
      border: 1px solid #e8edf3;
      border-radius: 6px;
      transition: border-color 0.18s ease, transform 0.18s ease;
    }

    .mega-card:hover {
      color: var(--theme);
      border-color: #aebfda;
      transform: translateY(-2px);
    }

    .mega-card-top {
      display: flex;
      align-items: center;
      gap: 11px;
    }

    .mega-card-top img {
      width: 42px;
      height: 42px;
      flex: 0 0 42px;
      object-fit: contain;
      background: var(--white);
      border: 1px solid var(--line);
      border-radius: 5px;
    }

    .mega-card strong {
      display: block;
      overflow: hidden;
      font-size: 14px;
      white-space: nowrap;
      text-overflow: ellipsis;
    }

    .mega-card p {
      margin: 9px 0 0;
      display: -webkit-box;
      overflow: hidden;
      color: var(--muted);
      font-size: 12px;
      line-height: 1.6;
      -webkit-box-orient: vertical;
      -webkit-line-clamp: 2;
    }

    .mega-rating,
    .mega-video-duration {
      display: block;
      margin-top: 3px;
      color: var(--accent);
      font-size: 12px;
      font-weight: 700;
    }

    .mega-meta {
      margin-top: 11px;
      display: flex;
      flex-wrap: wrap;
      gap: 5px 12px;
      color: var(--muted);
      font-size: 11px;
    }

    .mega-categories {
      margin-bottom: 15px;
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .mega-categories a {
      padding: 6px 11px;
      color: #3e4a60;
      background: #f2f5f9;
      border: 1px solid #e0e6ee;
      border-radius: 4px;
      font-size: 12px;
    }

    .mega-categories a:hover {
      color: var(--white);
      background: var(--accent);
      border-color: var(--accent);
    }

    .mega-video-card {
      display: grid;
      grid-template-columns: 94px minmax(0, 1fr);
      gap: 12px;
    }

    .mega-video-card > img {
      width: 94px;
      height: 68px;
      object-fit: cover;
      border-radius: 4px;
    }

    .mega-video-copy {
      min-width: 0;
    }

    .mega-video-copy p {
      margin-top: 4px;
    }

    .mega-footer {
      margin-top: 16px;
      padding-top: 13px;
      display: flex;
      justify-content: flex-end;
      color: var(--theme);
      font-size: 13px;
      font-weight: 800;
      border-top: 1px solid var(--line);
    }

    .header-btns {
      display: flex;
      align-items: center;
      gap: 9px;
      white-space: nowrap;
    }

    .member-entry {
      color: var(--theme);
      font-size: 14px;
      font-weight: 700;
    }

    .account-entry {
      min-height: 38px;
      padding: 7px 15px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      color: var(--white);
      background: var(--accent);
      border-radius: 4px;
      font-size: 14px;
      font-weight: 800;
    }

    .account-entry:hover {
      background: var(--accent-dark);
    }

    .hamburger {
      width: 42px;
      height: 42px;
      padding: 0;
      display: none;
      align-items: center;
      justify-content: center;
      flex-direction: column;
      gap: 5px;
      background: transparent;
      border: 1px solid var(--line);
      border-radius: 4px;
      cursor: pointer;
    }

    .hamburger span {
      width: 20px;
      height: 2px;
      display: block;
      background: var(--ink);
      transition: transform 0.2s ease, opacity 0.2s 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(10, 20, 38, 0.55);
      transition: opacity 0.22s ease, visibility 0.22s ease;
    }

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

    .mobile-drawer {
      position: fixed;
      top: 0;
      right: 0;
      z-index: 100;
      width: min(390px, 92vw);
      height: 100vh;
      overflow-y: auto;
      background: var(--white);
      box-shadow: -16px 0 40px rgba(15, 23, 42, 0.18);
      transform: translateX(105%);
      transition: transform 0.25s ease;
    }

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

    .drawer-head {
      min-height: 72px;
      padding: 14px 18px;
      display: flex;
      align-items: center;
      gap: 12px;
      color: var(--theme);
      border-bottom: 1px solid var(--line);
    }

    .drawer-head > a {
      padding: 6px 12px;
      color: var(--white);
      background: var(--accent);
      border-radius: 4px;
      font-size: 14px;
      font-weight: 700;
    }

    .drawer-close {
      width: 38px;
      height: 38px;
      margin-left: auto;
      padding: 0;
      color: #344054;
      background: #f2f4f7;
      border: 0;
      border-radius: 4px;
      font-size: 26px;
      line-height: 1;
      cursor: pointer;
    }

    .drawer-menu {
      padding: 10px 18px 28px;
    }

    .drawer-link,
    .drawer-toggle {
      width: 100%;
      min-height: 48px;
      padding: 11px 4px;
      display: flex;
      align-items: center;
      color: #273247;
      background: transparent;
      border: 0;
      border-bottom: 1px solid var(--line);
      font-size: 15px;
      font-weight: 700;
      text-align: left;
      cursor: pointer;
    }

    .drawer-toggle::after {
      content: "+";
      margin-left: auto;
      color: var(--accent);
      font-size: 21px;
      font-weight: 400;
    }

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

    .drawer-submenu {
      max-height: 0;
      overflow: hidden;
      background: #f7f9fc;
      transition: max-height 0.25s ease;
    }

    .drawer-submenu.open {
      max-height: 720px;
    }

    .drawer-submenu a {
      padding: 9px 14px;
      display: block;
      color: #566176;
      font-size: 13px;
      border-bottom: 1px solid #e8ecf2;
    }

    .drawer-submenu a:hover {
      color: var(--accent);
    }

    .article-page {
      padding: 28px 0 76px;
    }

    .article-page .article-breadcrumb {
      margin-bottom: 18px;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 7px;
      color: var(--muted);
      font-size: 13px;
    }

    .article-page .article-breadcrumb a:hover {
      color: var(--accent);
    }

    .article-page .article-shell {
      display: grid;
      grid-template-columns: minmax(0, 1fr) 310px;
      align-items: start;
      gap: 28px;
    }

    .article-page .article-main,
    .article-page .article-side-section {
      background: var(--white);
      border: 1px solid var(--line);
      border-radius: 6px;
      box-shadow: 0 8px 25px rgba(23, 32, 51, 0.05);
    }

    .article-page .article-main {
      min-width: 0;
      padding: 42px 48px;
    }

    .article-page .article-category {
      margin-bottom: 15px;
      display: inline-flex;
      align-items: center;
      gap: 7px;
      color: var(--accent);
      font-size: 13px;
      font-weight: 800;
    }

    .article-page .article-category::before {
      content: "";
      width: 24px;
      height: 3px;
      background: var(--accent);
    }

    .article-page .article-title {
      margin: 0;
      color: #172033;
      font-size: clamp(28px, 3.2vw, 42px);
      line-height: 1.28;
      letter-spacing: 0;
      overflow-wrap: anywhere;
    }

    .article-page .article-summary {
      margin: 20px 0 0;
      padding: 18px 20px;
      color: #4e5a6e;
      background: #f4f7fb;
      border-left: 4px solid var(--theme);
      font-size: 16px;
    }

    .article-page .article-meta {
      margin: 22px 0 30px;
      padding-bottom: 20px;
      display: flex;
      flex-wrap: wrap;
      gap: 8px 22px;
      color: var(--muted);
      font-size: 13px;
      border-bottom: 1px solid var(--line);
    }

    .article-page .article-meta span {
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .article-page .article-meta span::before {
      content: "";
      width: 6px;
      height: 6px;
      background: var(--accent);
      border-radius: 50%;
    }

    .article-page .article-body {
      min-width: 0;
      max-width: 100%;
      overflow-x: auto;
      color: #2f394c;
      font-size: 16px;
      line-height: 1.9;
    }

    .article-page .article-body h2,
    .article-page .article-body h3,
    .article-page .article-body h4 {
      margin: 1.7em 0 0.65em;
      color: #172033;
      line-height: 1.4;
      letter-spacing: 0;
    }

    .article-page .article-body h2 {
      padding-left: 13px;
      font-size: 25px;
      border-left: 4px solid var(--accent);
    }

    .article-page .article-body h3 {
      font-size: 21px;
    }

    .article-page .article-body p {
      margin: 1em 0;
    }

    .article-page .article-body a {
      color: var(--theme);
      text-decoration: underline;
    }

    .article-page .article-body img,
    .article-page .article-body video,
    .article-page .article-body iframe,
    .article-page .article-body table {
      max-width: 100%;
    }

    .article-page .article-body img {
      height: auto;
      margin: 24px auto;
      border-radius: 5px;
    }

    .article-page .article-body table {
      width: 100%;
      border-collapse: collapse;
    }

    .article-page .article-body th,
    .article-page .article-body td {
      min-width: 120px;
      padding: 10px 12px;
      border: 1px solid var(--line);
    }

    .article-page .article-body blockquote {
      margin: 24px 0;
      padding: 16px 20px;
      color: #4f5d72;
      background: #f7f8fa;
      border-left: 4px solid var(--theme);
    }

    .article-page .article-tags {
      margin-top: 34px;
      padding: 18px 0;
      display: flex;
      align-items: flex-start;
      gap: 12px;
      border-top: 1px solid var(--line);
      border-bottom: 1px solid var(--line);
    }

    .article-page .article-tags strong {
      flex: 0 0 auto;
      color: var(--theme);
      font-size: 14px;
    }

    .article-page .article-tags-links {
      min-width: 0;
      color: var(--accent);
      font-size: 14px;
      overflow-wrap: anywhere;
    }

    .article-page .article-navigation {
      margin-top: 24px;
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 14px;
    }

    .article-page .article-navigation a {
      min-width: 0;
      padding: 16px;
      display: block;
      background: #f7f9fc;
      border: 1px solid var(--line);
      border-radius: 5px;
    }

    .article-page .article-navigation a:hover {
      border-color: var(--accent);
    }

    .article-page .article-navigation span {
      display: block;
      color: var(--muted);
      font-size: 12px;
    }

    .article-page .article-navigation strong {
      margin-top: 5px;
      display: block;
      overflow: hidden;
      color: #273247;
      font-size: 14px;
      white-space: nowrap;
      text-overflow: ellipsis;
    }

    .article-page .article-navigation .next {
      text-align: right;
    }

    .article-page .article-disclaimer {
      margin-top: 24px;
      padding: 17px 18px;
      color: #6b4c18;
      background: #fff8e7;
      border: 1px solid #f0d89c;
      border-radius: 5px;
      font-size: 13px;
    }

    .article-page .article-sidebar {
      position: sticky;
      top: 20px;
      display: grid;
      gap: 20px;
    }

    .article-page .article-side-section {
      padding: 22px;
    }

    .article-page .article-side-title {
      margin: 0 0 15px;
      padding-bottom: 11px;
      color: var(--theme);
      font-size: 18px;
      border-bottom: 2px solid var(--line);
    }

    .article-page .article-side-title::after {
      content: "";
      width: 44px;
      height: 2px;
      margin-bottom: -13px;
      display: block;
      background: var(--accent);
    }

    .article-page .article-directory {
      margin: 0;
      padding: 0;
      list-style: none;
    }

    .article-page .article-directory a {
      padding: 10px 0;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      color: #475467;
      font-size: 14px;
      border-bottom: 1px solid var(--line);
    }

    .article-page .article-directory a::after {
      content: "→";
      color: var(--accent);
    }

    .article-page .article-directory a:hover {
      color: var(--theme);
    }

    .article-page .related-section {
      margin-top: 30px;
      padding-top: 28px;
      border-top: 1px solid var(--line);
    }

    .article-page .related-heading {
      margin: 0 0 18px;
      color: #172033;
      font-size: 24px;
    }

    .article-page .related-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 14px;
    }

    .article-page .related-card {
      min-width: 0;
      overflow: hidden;
      background: var(--white);
      border: 1px solid var(--line);
      border-radius: 5px;
    }

    .article-page .related-card:hover {
      border-color: #b8c7dc;
      box-shadow: 0 9px 24px rgba(23, 32, 51, 0.08);
    }

    .article-page .related-card img {
      width: 100%;
      aspect-ratio: 16 / 9;
      object-fit: cover;
      background: #e9edf3;
    }

    .article-page .related-copy {
      padding: 14px;
    }

    .article-page .related-copy h3 {
      margin: 0;
      display: -webkit-box;
      overflow: hidden;
      color: #263146;
      font-size: 15px;
      line-height: 1.55;
      -webkit-box-orient: vertical;
      -webkit-line-clamp: 2;
    }

    .article-page .related-copy p {
      margin: 8px 0 0;
      display: -webkit-box;
      overflow: hidden;
      color: var(--muted);
      font-size: 12px;
      line-height: 1.65;
      -webkit-box-orient: vertical;
      -webkit-line-clamp: 2;
    }

    .article-page .related-meta {
      margin-top: 10px;
      display: flex;
      justify-content: space-between;
      gap: 8px;
      color: #7b8494;
      font-size: 11px;
    }

    .footer {
      color: #c8d4e8;
      background: #101a2c;
    }

    .footer-main {
      padding: 56px 0 42px;
      display: grid;
      grid-template-columns: 1.45fr 1fr 1fr 1.2fr;
      gap: 42px;
    }

    .footer .logo {
      color: var(--white);
    }

    .footer-brand p {
      margin: 18px 0;
      color: #aebbd0;
      font-size: 14px;
      line-height: 1.8;
    }

    .footer h2 {
      margin: 7px 0 16px;
      color: var(--white);
      font-size: 16px;
    }

    .footer-social {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .footer-social a {
      padding: 6px 10px;
      color: #dbe5f5;
      background: #1d2b42;
      border-radius: 4px;
      font-size: 12px;
    }

    .footer-links,
    .footer-contact {
      display: grid;
      gap: 9px;
      color: #aebbd0;
      font-size: 13px;
    }

    .footer-links a:hover,
    .footer-contact a:hover,
    .footer-bottom a:hover {
      color: var(--white);
    }

    .footer-contact span {
      overflow-wrap: anywhere;
    }

    .footer-bottom {
      min-height: 64px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
      color: #8f9db3;
      font-size: 12px;
      border-top: 1px solid #27344a;
    }

    .footer-bottom-links {
      display: flex;
      gap: 18px;
    }

    @media (max-width: 1120px) {
      .main-nav {
        display: none;
      }

      .header-inner {
        min-height: 70px;
      }

      .hamburger {
        display: flex;
      }

      .header-btns {
        margin-left: auto;
      }

      .article-page .article-shell {
        grid-template-columns: minmax(0, 1fr) 280px;
      }

      .footer-main {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }
    }

    @media (max-width: 860px) {
      .topbar-welcome {
        display: none;
      }

      .topbar-inner {
        justify-content: center;
      }

      .article-page .article-shell {
        grid-template-columns: 1fr;
      }

      .article-page .article-sidebar {
        position: static;
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }

      .article-page .related-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }
    }

    @media (max-width: 640px) {
      .container {
        width: min(100% - 24px, 1180px);
      }

      .topbar-contact {
        width: 100%;
        padding: 7px 0;
        justify-content: space-between;
        gap: 10px;
        white-space: normal;
        font-size: 11px;
      }

      .header-inner {
        gap: 10px;
      }

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

      .logo img {
        width: 36px;
        height: 36px;
      }

      .member-entry {
        display: none;
      }

      .account-entry {
        min-height: 36px;
        padding: 6px 11px;
        font-size: 13px;
      }

      .hamburger {
        width: 38px;
        height: 38px;
      }

      .article-page {
        padding: 18px 0 48px;
      }

      .article-page .article-main {
        padding: 26px 18px;
      }

      .article-page .article-title {
        font-size: 28px;
      }

      .article-page .article-summary {
        padding: 15px;
        font-size: 14px;
      }

      .article-page .article-body {
        font-size: 15px;
      }

      .article-page .article-navigation {
        grid-template-columns: 1fr;
      }

      .article-page .article-navigation .next {
        text-align: left;
      }

      .article-page .article-sidebar {
        grid-template-columns: 1fr;
      }

      .article-page .related-grid {
        grid-template-columns: 1fr;
      }

      .footer-main {
        padding: 40px 0 30px;
        grid-template-columns: 1fr;
        gap: 28px;
      }

      .footer-bottom {
        padding: 18px 0;
        align-items: flex-start;
        flex-direction: column;
      }
    }