:root {
      --theme: #0B3D91;
      --template-theme: {主题色};
      --theme-dark: #06275f;
      --theme-soft: #eaf1fc;
      --ink: #132033;
      --muted: #657187;
      --line: #dce3ed;
      --surface: #ffffff;
      --surface-soft: #f5f7fa;
      --success: #16825d;
      --warning: #d28b16;
      --shadow: 0 16px 40px rgba(12, 31, 61, 0.1);
      --container: 1240px;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      color: var(--ink);
      background: var(--surface-soft);
      font-family: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", Arial, sans-serif;
      line-height: 1.65;
      letter-spacing: 0;
    }

    body.drawer-locked {
      overflow: hidden;
    }

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

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

    button,
    input,
    select {
      font: inherit;
    }

    button {
      color: inherit;
    }

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

    .topbar {
      color: #dce8fb;
      background: #07162d;
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
      font-size: 13px;
    }

    .topbar-inner {
      min-height: 36px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
    }

    .topbar-contact {
      display: flex;
      align-items: center;
      gap: 20px;
    }

    .topbar a {
      transition: color 0.2s ease;
    }

    .topbar a:hover,
    .topbar a:focus-visible {
      color: #ffffff;
    }

    .header {
      position: relative;
      z-index: 40;
      background: rgba(255, 255, 255, 0.98);
      border-bottom: 1px solid var(--line);
      box-shadow: 0 5px 18px rgba(20, 38, 68, 0.05);
    }

    .header-inner {
      min-height: 76px;
      display: flex;
      align-items: center;
      gap: 22px;
    }

    .logo {
      min-width: 0;
      display: inline-flex;
      align-items: center;
      gap: 10px;
      color: var(--theme-dark);
      font-size: 19px;
      font-weight: 800;
      line-height: 1.2;
    }

    .logo img {
      width: 38px;
      height: 38px;
      flex: 0 0 38px;
      object-fit: contain;
    }

    .logo span {
      overflow-wrap: anywhere;
    }

    .main-nav {
      min-width: 0;
      margin-left: auto;
    }

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

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

    .nav-link {
      min-height: 76px;
      display: flex;
      align-items: center;
      padding: 0 11px;
      color: #25344b;
      font-size: 14px;
      font-weight: 700;
      white-space: nowrap;
      border-bottom: 3px solid transparent;
      transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
    }

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

    .has-arrow::after {
      width: 6px;
      height: 6px;
      margin: -3px 0 0 7px;
      content: "";
      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: 50;
      visibility: hidden;
      opacity: 0;
      transform: translateY(8px);
      pointer-events: none;
      transition: opacity 0.18s ease, transform 0.18s ease, visibility 0.18s ease;
    }

    .dropdown-panel {
      width: 290px;
      padding: 10px;
      background: #ffffff;
      border: 1px solid var(--line);
      border-radius: 0 0 6px 6px;
      box-shadow: var(--shadow);
    }

    .dropdown-panel > a:not(.dropdown-footer) {
      display: block;
      padding: 10px 12px;
      color: #344258;
      font-size: 14px;
      border-radius: 4px;
    }

    .dropdown-panel > a:not(.dropdown-footer):hover,
    .dropdown-panel > a:not(.dropdown-footer):focus-visible {
      color: var(--theme);
      background: var(--theme-soft);
    }

    .dropdown-footer,
    .mega-footer {
      display: block;
      margin-top: 8px;
      padding: 10px 12px;
      color: var(--theme);
      font-size: 13px;
      font-weight: 800;
      border-top: 1px solid var(--line);
    }

    .mega-menu {
      width: 650px;
      padding: 20px;
      background: #ffffff;
      border: 1px solid var(--line);
      border-radius: 0 0 6px 6px;
      box-shadow: var(--shadow);
    }

    .mega-menu.mega-wide {
      width: 760px;
    }

    .nav-item:nth-last-child(-n + 3) .mega-menu {
      right: 0;
      left: auto;
    }

    .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: translateY(0);
      pointer-events: auto;
    }

    .mega-title {
      margin: 0 0 13px;
      color: #192942;
      font-size: 14px;
      font-weight: 800;
    }

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

    .mega-card {
      min-width: 0;
      display: flex;
      align-items: center;
      gap: 11px;
      padding: 10px;
      border: 1px solid #e6ebf2;
      border-radius: 5px;
      transition: border-color 0.2s ease, background 0.2s ease;
    }

    .mega-card:hover,
    .mega-card:focus-visible {
      background: var(--theme-soft);
      border-color: #a9c2ea;
    }

    .mega-card img {
      width: 44px;
      height: 44px;
      flex: 0 0 44px;
      object-fit: cover;
      border-radius: 4px;
      background: #eef2f7;
    }

    .mega-card img.tool-icon {
      object-fit: contain;
      padding: 5px;
    }

    .mega-card-copy {
      min-width: 0;
      display: grid;
      gap: 2px;
    }

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

    .mega-card-copy strong {
      color: #1e2c42;
      font-size: 13px;
    }

    .mega-card-copy span {
      color: var(--muted);
      font-size: 11px;
    }

    .mega-category-list {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-bottom: 14px;
    }

    .mega-category-list a {
      padding: 6px 10px;
      color: #344258;
      background: #f0f3f7;
      border-radius: 4px;
      font-size: 12px;
      font-weight: 700;
    }

    .mega-category-list a:hover,
    .mega-category-list a:focus-visible {
      color: #ffffff;
      background: var(--theme);
    }

    .header-btns {
      display: flex;
      align-items: center;
      gap: 9px;
      margin-left: 2px;
      white-space: nowrap;
    }

    .account-btn {
      min-height: 40px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 8px 14px;
      color: #ffffff;
      background: var(--theme);
      border: 1px solid var(--theme);
      border-radius: 5px;
      font-size: 13px;
      font-weight: 800;
      transition: background 0.2s ease;
    }

    .account-btn:hover,
    .account-btn:focus-visible {
      background: var(--theme-dark);
    }

    .hamburger {
      width: 42px;
      height: 42px;
      display: none;
      align-items: center;
      justify-content: center;
      flex-direction: column;
      gap: 5px;
      padding: 0;
      background: #ffffff;
      border: 1px solid var(--line);
      border-radius: 5px;
      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: 80;
      visibility: hidden;
      opacity: 0;
      background: rgba(4, 12, 25, 0.62);
      transition: opacity 0.25s ease, visibility 0.25s ease;
    }

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

    .mobile-drawer {
      position: fixed;
      top: 0;
      right: 0;
      z-index: 90;
      width: min(390px, 92vw);
      height: 100dvh;
      overflow-y: auto;
      background: #ffffff;
      box-shadow: -20px 0 50px rgba(0, 0, 0, 0.18);
      transform: translateX(105%);
      transition: transform 0.28s ease;
    }

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

    .drawer-head {
      min-height: 70px;
      display: flex;
      align-items: center;
      gap: 10px;
      padding: 13px 18px;
      color: #ffffff;
      background: var(--theme-dark);
    }

    .drawer-head > a {
      padding: 7px 10px;
      border: 1px solid rgba(255, 255, 255, 0.32);
      border-radius: 4px;
      font-size: 13px;
      font-weight: 700;
    }

    .drawer-close {
      width: 38px;
      height: 38px;
      margin-left: auto;
      padding: 0;
      color: #ffffff;
      background: transparent;
      border: 1px solid rgba(255, 255, 255, 0.32);
      border-radius: 4px;
      font-size: 27px;
      line-height: 1;
      cursor: pointer;
    }

    .drawer-menu {
      padding: 12px 18px 30px;
    }

    .drawer-link,
    .drawer-toggle {
      width: 100%;
      min-height: 49px;
      display: flex;
      align-items: center;
      padding: 11px 4px;
      color: #223149;
      background: transparent;
      border: 0;
      border-bottom: 1px solid var(--line);
      font-size: 15px;
      font-weight: 800;
      text-align: left;
      cursor: pointer;
    }

    .drawer-toggle {
      justify-content: space-between;
    }

    .drawer-toggle::after {
      width: 8px;
      height: 8px;
      content: "";
      border-right: 2px solid var(--muted);
      border-bottom: 2px solid var(--muted);
      transform: rotate(45deg);
      transition: transform 0.2s ease;
    }

    .drawer-toggle.active::after {
      transform: rotate(225deg);
    }

    .drawer-submenu {
      display: none;
      padding: 7px 0 9px 13px;
      border-bottom: 1px solid var(--line);
    }

    .drawer-submenu.open {
      display: grid;
    }

    .drawer-submenu a {
      padding: 8px 10px;
      color: var(--muted);
      font-size: 14px;
      border-left: 2px solid #dfe6f0;
    }

    .drawer-submenu a:hover,
    .drawer-submenu a:focus-visible {
      color: var(--theme);
      border-left-color: var(--theme);
      background: var(--theme-soft);
    }

    .tools-page {
      min-height: 70vh;
    }

    .tools-page .tools-masthead {
      color: #ffffff;
      background:
        linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px),
        linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
        #081b39;
      background-size: 36px 36px;
      border-bottom: 4px solid var(--theme);
    }

    .tools-page .tools-masthead-inner {
      min-height: 320px;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      padding: 62px 0;
      text-align: center;
    }

    .tools-page .section-kicker {
      margin: 0 0 12px;
      color: #94bcff;
      font-size: 13px;
      font-weight: 800;
      text-transform: uppercase;
    }

    .tools-page .tools-masthead h1 {
      max-width: 800px;
      margin: 0;
      font-size: clamp(34px, 5vw, 58px);
      line-height: 1.12;
      letter-spacing: 0;
      overflow-wrap: anywhere;
    }

    .tools-page .tools-masthead p {
      max-width: 720px;
      margin: 18px auto 0;
      color: #c9d7ec;
      font-size: 17px;
    }

    .tools-page .masthead-status {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 9px;
      margin-top: 27px;
    }

    .tools-page .masthead-status span {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      padding: 7px 11px;
      color: #e9f2ff;
      background: rgba(255, 255, 255, 0.08);
      border: 1px solid rgba(255, 255, 255, 0.16);
      border-radius: 4px;
      font-size: 13px;
      font-weight: 700;
    }

    .tools-page .masthead-status span::before {
      width: 7px;
      height: 7px;
      content: "";
      background: #4bd39b;
      border-radius: 50%;
      box-shadow: 0 0 0 4px rgba(75, 211, 155, 0.13);
    }

    .tools-page .tools-content {
      padding: 54px 0 72px;
    }

    .tools-page .tools-intro {
      display: flex;
      align-items: end;
      justify-content: space-between;
      gap: 30px;
      margin-bottom: 25px;
    }

    .tools-page .tools-intro h2 {
      margin: 0 0 6px;
      font-size: 27px;
      line-height: 1.25;
    }

    .tools-page .tools-intro p {
      max-width: 690px;
      margin: 0;
      color: var(--muted);
    }

    .tools-page .tools-count {
      flex: 0 0 auto;
      padding: 8px 12px;
      color: var(--theme-dark);
      background: var(--theme-soft);
      border-left: 3px solid var(--theme);
      font-size: 13px;
      font-weight: 800;
    }

    .tools-page .tool-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 18px;
    }

    .tools-page .tool-card {
      min-width: 0;
      min-height: 254px;
      display: flex;
      flex-direction: column;
      padding: 23px;
      background: #ffffff;
      border: 1px solid var(--line);
      border-radius: 6px;
      box-shadow: 0 8px 24px rgba(20, 39, 70, 0.05);
      transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
    }

    .tools-page .tool-card:hover,
    .tools-page .tool-card:focus-within {
      transform: translateY(-3px);
      border-color: #9eb9e3;
      box-shadow: 0 15px 34px rgba(20, 50, 95, 0.12);
    }

    .tools-page .tool-card-head {
      display: flex;
      align-items: center;
      gap: 14px;
      margin-bottom: 18px;
    }

    .tools-page .tool-card-icon {
      width: 54px;
      height: 54px;
      flex: 0 0 54px;
      display: grid;
      place-items: center;
      padding: 9px;
      background: var(--theme-soft);
      border: 1px solid #d5e2f6;
      border-radius: 6px;
    }

    .tools-page .tool-card-icon img {
      width: 100%;
      height: 100%;
      object-fit: contain;
    }

    .tools-page .tool-card-label {
      display: grid;
      gap: 3px;
      min-width: 0;
    }

    .tools-page .tool-card-label span {
      color: var(--success);
      font-size: 11px;
      font-weight: 800;
    }

    .tools-page .tool-card h2 {
      margin: 0;
      color: #15243b;
      font-size: 19px;
      line-height: 1.35;
      overflow-wrap: anywhere;
    }

    .tools-page .tool-card p {
      margin: 0 0 20px;
      color: var(--muted);
      font-size: 14px;
      display: -webkit-box;
      overflow: hidden;
      -webkit-box-orient: vertical;
      -webkit-line-clamp: 4;
    }

    .tools-page .tool-link {
      min-height: 41px;
      display: inline-flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      margin-top: auto;
      padding-top: 13px;
      color: var(--theme);
      border-top: 1px solid var(--line);
      font-size: 14px;
      font-weight: 800;
    }

    .tools-page .tool-link::after {
      content: "→";
      font-size: 18px;
      transition: transform 0.2s ease;
    }

    .tools-page .tool-card:hover .tool-link::after {
      transform: translateX(4px);
    }

    .tools-page .research-note {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 1px;
      margin-top: 42px;
      overflow: hidden;
      color: #ffffff;
      background: rgba(255, 255, 255, 0.14);
      border-radius: 6px;
      box-shadow: var(--shadow);
    }

    .tools-page .research-note article {
      min-width: 0;
      padding: 26px;
      background: var(--theme-dark);
    }

    .tools-page .research-note strong {
      display: block;
      margin-bottom: 7px;
      color: #ffffff;
      font-size: 17px;
    }

    .tools-page .research-note p {
      margin: 0;
      color: #c7d5e9;
      font-size: 13px;
    }

    .tools-page .tools-notice {
      margin-top: 24px;
      padding: 17px 19px;
      color: #5c4a1d;
      background: #fff9e9;
      border: 1px solid #ecdcae;
      border-left: 4px solid var(--warning);
      font-size: 13px;
    }

    .footer {
      color: #cbd6e8;
      background: #07162d;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1fr;
      gap: 42px;
      padding: 58px 0 42px;
    }

    .footer .logo {
      color: #ffffff;
    }

    .footer-brand p {
      max-width: 390px;
      margin: 18px 0 0;
      color: #9faec3;
      font-size: 14px;
    }

    .footer h3 {
      margin: 5px 0 15px;
      color: #ffffff;
      font-size: 15px;
    }

    .footer-links,
    .footer-contact {
      display: grid;
      gap: 9px;
    }

    .footer-links a,
    .footer-contact a,
    .footer-contact span {
      color: #aab8cc;
      font-size: 13px;
      overflow-wrap: anywhere;
    }

    .footer-links a:hover,
    .footer-links a:focus-visible,
    .footer-contact a:hover,
    .footer-contact a:focus-visible {
      color: #ffffff;
    }

    .footer-bottom {
      min-height: 64px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
      color: #8190a6;
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      font-size: 12px;
    }

    @media (max-width: 1160px) {
      .main-nav {
        display: none;
      }

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

      .hamburger {
        display: flex;
      }

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

    @media (max-width: 820px) {
      .container {
        width: min(calc(100% - 28px), var(--container));
      }

      .topbar-inner {
        padding: 8px 0;
      }

      .topbar-contact {
        gap: 10px;
      }

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

      .header .logo span {
        max-width: 190px;
      }

      .tools-page .tools-masthead-inner {
        min-height: 280px;
        padding: 48px 0;
      }

      .tools-page .tools-masthead p {
        font-size: 15px;
      }

      .tools-page .tools-content {
        padding: 42px 0 56px;
      }

      .tools-page .tools-intro {
        align-items: flex-start;
        flex-direction: column;
        gap: 15px;
      }

      .tools-page .research-note {
        grid-template-columns: 1fr;
      }

      .footer-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 32px;
      }
    }

    @media (max-width: 580px) {
      .topbar-inner {
        align-items: flex-start;
        flex-direction: column;
        gap: 3px;
      }

      .topbar-contact {
        align-items: flex-start;
        flex-direction: column;
        gap: 2px;
      }

      .header-btns > .account-btn {
        display: none;
      }

      .header .logo {
        font-size: 16px;
      }

      .header .logo img {
        width: 34px;
        height: 34px;
        flex-basis: 34px;
      }

      .tools-page .tools-masthead h1 {
        font-size: 34px;
      }

      .tools-page .tools-masthead p {
        font-size: 14px;
      }

      .tools-page .tool-grid {
        grid-template-columns: 1fr;
      }

      .tools-page .tool-card {
        min-height: 232px;
      }

      .footer-grid {
        grid-template-columns: 1fr;
        padding: 45px 0 34px;
      }

      .footer-bottom {
        align-items: flex-start;
        flex-direction: column;
        justify-content: center;
        padding: 17px 0;
      }
    }