:root {
      --theme: #0B3D91;
      --template-theme: {主题色};
      --theme-dark: #072a65;
      --theme-soft: #edf4ff;
      --ink: #142033;
      --muted: #68758a;
      --line: #dfe6ef;
      --surface: #ffffff;
      --page: #f5f7fb;
      --success: #138a5b;
      --shadow: 0 16px 45px rgba(20, 32, 51, .10);
      --radius: 18px;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      color: var(--ink);
      background: var(--page);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", sans-serif;
      line-height: 1.7;
    }

    body.drawer-locked {
      overflow: hidden;
    }

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

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

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

    button,
    a {
      -webkit-tap-highlight-color: transparent;
    }

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

    .topbar {
      color: #dce9ff;
      background: var(--theme-dark);
      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 .2s ease;
    }

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

    .header {
      position: sticky;
      z-index: 1000;
      top: 0;
      background: rgba(255, 255, 255, .96);
      border-bottom: 1px solid rgba(223, 230, 239, .9);
      box-shadow: 0 5px 22px rgba(20, 32, 51, .05);
      backdrop-filter: blur(14px);
    }

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

    .logo {
      min-width: 0;
      display: inline-flex;
      align-items: center;
      gap: 10px;
      color: var(--theme);
      font-weight: 900;
      letter-spacing: -.02em;
    }

    .logo img {
      width: 42px;
      height: 42px;
      flex: 0 0 42px;
      object-fit: contain;
      border-radius: 10px;
    }

    .logo span {
      overflow: hidden;
      max-width: 180px;
      text-overflow: ellipsis;
      white-space: nowrap;
    }

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

    .nav-list {
      height: 76px;
      margin: 0;
      padding: 0;
      display: flex;
      align-items: stretch;
      justify-content: center;
      list-style: none;
    }

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

    .nav-link {
      position: relative;
      padding: 0 13px;
      display: inline-flex;
      align-items: center;
      color: #26344a;
      font-size: 14px;
      font-weight: 750;
      white-space: nowrap;
      transition: color .2s ease;
    }

    .nav-link::after {
      position: absolute;
      right: 13px;
      bottom: 0;
      left: 13px;
      height: 3px;
      content: "";
      background: var(--theme);
      border-radius: 4px 4px 0 0;
      transform: scaleX(0);
      transition: transform .2s ease;
    }

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

    .nav-link:hover::after,
    .nav-item:focus-within > .nav-link::after {
      transform: scaleX(1);
    }

    .nav-link.has-arrow {
      gap: 6px;
    }

    .nav-link.has-arrow::before {
      order: 2;
      width: 6px;
      height: 6px;
      content: "";
      border-right: 1.5px solid currentColor;
      border-bottom: 1.5px solid currentColor;
      transform: rotate(45deg) translateY(-2px);
    }

    .dropdown-panel,
    .mega-menu {
      position: absolute;
      z-index: 1100;
      top: 100%;
      visibility: hidden;
      opacity: 0;
      background: #ffffff;
      border: 1px solid var(--line);
      box-shadow: var(--shadow);
      transform: translateY(10px);
      transition: opacity .2s ease, transform .2s ease, visibility .2s ease;
    }

    .dropdown-panel::before,
    .mega-menu::before {
      position: absolute;
      right: 0;
      bottom: 100%;
      left: 0;
      height: 12px;
      content: "";
    }

    .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);
    }

    .dropdown-panel {
      left: 0;
      width: 310px;
      padding: 12px;
      border-radius: 0 0 16px 16px;
    }

    .dropdown-panel > a {
      padding: 10px 12px;
      display: block;
      color: #344258;
      border-radius: 9px;
      font-size: 14px;
    }

    .dropdown-panel > a:hover {
      color: var(--theme);
      background: var(--theme-soft);
    }

    .dropdown-panel .dropdown-all {
      margin-top: 8px;
      color: var(--theme);
      border-top: 1px solid var(--line);
      border-radius: 0 0 9px 9px;
      font-weight: 800;
    }

    .mega-menu {
      left: 50%;
      width: min(920px, calc(100vw - 40px));
      padding: 24px;
      border-radius: 0 0 20px 20px;
      transform: translate(-50%, 10px);
    }

    .nav-item:hover > .mega-menu,
    .nav-item:focus-within > .mega-menu {
      transform: translate(-50%, 0);
    }

    .nav-item:nth-last-child(-n+3) .mega-menu {
      right: -120px;
      left: auto;
      transform: translateY(10px);
    }

    .nav-item:nth-last-child(-n+3):hover > .mega-menu,
    .nav-item:nth-last-child(-n+3):focus-within > .mega-menu {
      transform: translateY(0);
    }

    .mega-heading {
      margin: 0 0 16px;
      color: var(--ink);
      font-size: 18px;
    }

    .mega-categories {
      margin-bottom: 18px;
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .mega-categories a {
      padding: 6px 11px;
      color: var(--theme);
      background: var(--theme-soft);
      border: 1px solid #d6e5ff;
      border-radius: 999px;
      font-size: 13px;
      font-weight: 750;
    }

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

    .mega-card {
      min-width: 0;
      padding: 13px;
      display: grid;
      grid-template-columns: 46px minmax(0, 1fr);
      align-items: center;
      gap: 5px 11px;
      background: #f8faff;
      border: 1px solid #e7edf6;
      border-radius: 13px;
      transition: border-color .2s ease, transform .2s ease, box-shadow .2s ease;
    }

    .mega-card:hover {
      border-color: #a9c5f3;
      box-shadow: 0 8px 22px rgba(11, 61, 145, .09);
      transform: translateY(-2px);
    }

    .mega-card img {
      width: 46px;
      height: 46px;
      grid-row: 1 / span 3;
      object-fit: contain;
      background: #ffffff;
      border-radius: 10px;
    }

    .mega-card strong,
    .mega-card p,
    .mega-meta {
      min-width: 0;
      grid-column: 2;
    }

    .mega-card strong {
      overflow: hidden;
      color: #1d2b41;
      font-size: 14px;
      text-overflow: ellipsis;
      white-space: nowrap;
    }

    .mega-card p {
      overflow: hidden;
      height: 40px;
      margin: 0;
      color: var(--muted);
      font-size: 12px;
      line-height: 1.65;
    }

    .mega-card-cover img {
      object-fit: cover;
    }

    .mega-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 4px 8px;
      color: #708097;
      font-size: 11px;
    }

    .mega-footer {
      margin-top: 18px;
      padding: 11px 14px;
      display: block;
      color: #ffffff;
      background: var(--theme);
      border-radius: 10px;
      text-align: center;
      font-size: 14px;
      font-weight: 800;
    }

    .header-btns {
      display: flex;
      align-items: center;
      gap: 10px;
      white-space: nowrap;
    }

    .member-entry {
      color: var(--theme);
      font-size: 14px;
      font-weight: 800;
    }

    .account-btn {
      padding: 10px 15px;
      color: #ffffff;
      background: var(--theme);
      border-radius: 10px;
      font-size: 14px;
      font-weight: 800;
      box-shadow: 0 7px 18px rgba(11, 61, 145, .20);
    }

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

    .hamburger {
      width: 42px;
      height: 42px;
      padding: 10px;
      display: none;
      border: 1px solid var(--line);
      background: #ffffff;
      border-radius: 10px;
      cursor: pointer;
    }

    .hamburger span {
      width: 100%;
      height: 2px;
      margin: 4px 0;
      display: block;
      background: var(--ink);
      border-radius: 3px;
      transition: transform .2s ease, opacity .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;
      z-index: 1190;
      inset: 0;
      visibility: hidden;
      opacity: 0;
      background: rgba(8, 17, 31, .55);
      transition: opacity .25s ease, visibility .25s ease;
    }

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

    .mobile-drawer {
      position: fixed;
      z-index: 1200;
      top: 0;
      right: 0;
      bottom: 0;
      width: min(390px, 92vw);
      overflow-y: auto;
      background: #ffffff;
      box-shadow: -20px 0 45px rgba(15, 25, 45, .20);
      transform: translateX(105%);
      transition: transform .28s 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);
      font-weight: 800;
    }

    .drawer-head > a {
      padding: 8px 11px;
      color: #ffffff;
      background: var(--theme);
      border-radius: 8px;
      font-size: 13px;
    }

    .drawer-close {
      width: 38px;
      height: 38px;
      margin-left: auto;
      color: var(--ink);
      background: #f2f5f9;
      border: 0;
      border-radius: 9px;
      font-size: 26px;
      line-height: 1;
      cursor: pointer;
    }

    .drawer-menu {
      padding: 12px 18px 28px;
    }

    .drawer-link,
    .drawer-toggle {
      width: 100%;
      min-height: 48px;
      padding: 11px 5px;
      display: flex;
      align-items: center;
      color: #26344a;
      background: transparent;
      border: 0;
      border-bottom: 1px solid #edf0f5;
      font-weight: 800;
      text-align: left;
      cursor: pointer;
    }

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

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

    .drawer-submenu {
      max-height: 0;
      overflow: hidden;
      padding-inline: 12px;
      background: #f8faff;
      transition: max-height .3s ease, padding .3s ease;
    }

    .drawer-submenu.open {
      max-height: 680px;
      padding-block: 8px;
    }

    .drawer-submenu a {
      padding: 8px 7px;
      display: block;
      color: #536177;
      border-radius: 6px;
      font-size: 14px;
    }

    .drawer-submenu a:hover {
      color: var(--theme);
      background: #eaf2ff;
    }

    .tool-detail-page {
      min-width: 0;
      padding: 54px 0 76px;
    }

    .tool-detail-page .tool-breadcrumb {
      margin-bottom: 22px;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 8px;
      color: var(--muted);
      font-size: 14px;
    }

    .tool-detail-page .tool-breadcrumb a {
      color: var(--theme);
      font-weight: 750;
    }

    .tool-detail-page .tool-breadcrumb span:not(:last-child)::after {
      margin-left: 8px;
      content: "/";
      color: #a8b1bf;
    }

    .tool-detail-page .tool-hero {
      position: relative;
      overflow: hidden;
      padding: 38px;
      color: #ffffff;
      background:
        radial-gradient(circle at 86% 18%, rgba(255, 255, 255, .18), transparent 22%),
        linear-gradient(135deg, var(--theme-dark), var(--theme) 62%, #1c69c7);
      border-radius: 26px;
      box-shadow: 0 24px 56px rgba(11, 61, 145, .20);
    }

    .tool-detail-page .tool-hero::before,
    .tool-detail-page .tool-hero::after {
      position: absolute;
      content: "";
      border: 1px solid rgba(255, 255, 255, .18);
      border-radius: 50%;
    }

    .tool-detail-page .tool-hero::before {
      top: -140px;
      right: -80px;
      width: 360px;
      height: 360px;
    }

    .tool-detail-page .tool-hero::after {
      right: 165px;
      bottom: -135px;
      width: 250px;
      height: 250px;
    }

    .tool-detail-page .tool-heading {
      position: relative;
      z-index: 1;
      max-width: 850px;
    }

    .tool-detail-page .tool-kicker {
      margin-bottom: 14px;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: #dceaff;
      font-size: 13px;
      font-weight: 850;
      letter-spacing: .12em;
    }

    .tool-detail-page .tool-kicker::before {
      width: 28px;
      height: 3px;
      content: "";
      background: #ffd529;
      border-radius: 3px;
    }

    .tool-detail-page .tool-title-row {
      display: flex;
      align-items: center;
      gap: 20px;
    }

    .tool-detail-page .tool-icon {
      width: 82px;
      height: 82px;
      flex: 0 0 82px;
      padding: 13px;
      object-fit: contain;
      background: #ffffff;
      border: 4px solid rgba(255, 255, 255, .25);
      border-radius: 20px;
      box-shadow: 0 12px 26px rgba(0, 0, 0, .18);
    }

    .tool-detail-page h1 {
      margin: 0;
      color: #ffffff;
      font-size: clamp(30px, 4vw, 52px);
      line-height: 1.15;
      letter-spacing: -.035em;
    }

    .tool-detail-page .tool-intro {
      max-width: 760px;
      margin: 20px 0 0;
      color: #e7efff;
      font-size: 17px;
      line-height: 1.85;
    }

    .tool-detail-page .tool-meta {
      position: relative;
      z-index: 1;
      margin-top: 26px;
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }

    .tool-detail-page .tool-meta span {
      padding: 7px 12px;
      color: #eef5ff;
      background: rgba(255, 255, 255, .12);
      border: 1px solid rgba(255, 255, 255, .18);
      border-radius: 999px;
      font-size: 13px;
      backdrop-filter: blur(8px);
    }

    .tool-detail-page .tool-layout {
      min-width: 0;
      margin-top: 30px;
      display: grid;
      grid-template-columns: minmax(0, 1fr) 320px;
      align-items: start;
      gap: 28px;
    }

    .tool-detail-page .tool-primary,
    .tool-detail-page .tool-sidebar {
      min-width: 0;
    }

    .tool-detail-page .tool-content-card,
    .tool-detail-page .usage-card,
    .tool-detail-page .related-tools {
      overflow: hidden;
      background: var(--surface);
      border: 1px solid var(--line);
      border-radius: var(--radius);
      box-shadow: 0 12px 36px rgba(20, 32, 51, .07);
    }

    .tool-detail-page .section-heading {
      margin: 0;
      padding: 22px 26px;
      color: var(--ink);
      border-bottom: 1px solid var(--line);
      font-size: 21px;
    }

    .tool-detail-page .tool-content {
      min-width: 0;
      max-width: 100%;
      overflow-x: auto;
      padding: 28px;
      color: #354258;
      font-size: 16px;
    }

    .tool-detail-page .tool-content > :first-child {
      margin-top: 0;
    }

    .tool-detail-page .tool-content > :last-child {
      margin-bottom: 0;
    }

    .tool-detail-page .tool-content h2,
    .tool-detail-page .tool-content h3,
    .tool-detail-page .tool-content h4 {
      color: var(--ink);
      line-height: 1.35;
    }

    .tool-detail-page .tool-content a {
      color: var(--theme);
      text-decoration: underline;
      text-underline-offset: 3px;
    }

    .tool-detail-page .tool-content img,
    .tool-detail-page .tool-content video,
    .tool-detail-page .tool-content iframe {
      max-width: 100%;
      height: auto;
      border-radius: 12px;
    }

    .tool-detail-page .tool-content table {
      width: 100%;
      max-width: 100%;
      border-spacing: 0;
      border-collapse: collapse;
    }

    .tool-detail-page .tool-content th,
    .tool-detail-page .tool-content td {
      padding: 10px 12px;
      border: 1px solid var(--line);
      text-align: left;
      white-space: normal;
    }

    .tool-detail-page .tool-content pre,
    .tool-detail-page .tool-content code {
      max-width: 100%;
      overflow-x: auto;
      white-space: pre-wrap;
      word-break: break-word;
    }

    .tool-detail-page .usage-card {
      margin-top: 24px;
      padding: 26px;
    }

    .tool-detail-page .usage-card h2 {
      margin: 0 0 18px;
      font-size: 21px;
    }

    .tool-detail-page .usage-steps {
      margin: 0;
      padding: 0;
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 14px;
      list-style: none;
      counter-reset: usage;
    }

    .tool-detail-page .usage-steps li {
      min-width: 0;
      padding: 18px;
      color: #4b5970;
      background: #f7f9fd;
      border: 1px solid #e5ebf4;
      border-radius: 14px;
      counter-increment: usage;
    }

    .tool-detail-page .usage-steps li::before {
      width: 32px;
      height: 32px;
      margin-bottom: 10px;
      display: grid;
      content: counter(usage);
      color: #ffffff;
      background: var(--theme);
      border-radius: 9px;
      place-items: center;
      font-weight: 900;
    }

    .tool-detail-page .sidebar-card {
      position: sticky;
      top: 100px;
    }

    .tool-detail-page .related-tools {
      padding-bottom: 10px;
    }

    .tool-detail-page .related-tools-list {
      padding: 10px;
      display: grid;
      gap: 8px;
    }

    .tool-detail-page .related-tool {
      min-width: 0;
      padding: 12px;
      display: grid;
      grid-template-columns: 50px minmax(0, 1fr);
      gap: 3px 12px;
      background: #f8faff;
      border: 1px solid transparent;
      border-radius: 12px;
      transition: border-color .2s ease, background .2s ease, transform .2s ease;
    }

    .tool-detail-page .related-tool:hover {
      background: #ffffff;
      border-color: #bad0f2;
      transform: translateY(-2px);
    }

    .tool-detail-page .related-tool img {
      width: 50px;
      height: 50px;
      grid-row: 1 / span 2;
      object-fit: contain;
      background: #ffffff;
      border-radius: 11px;
    }

    .tool-detail-page .related-tool strong {
      overflow: hidden;
      color: var(--ink);
      text-overflow: ellipsis;
      white-space: nowrap;
    }

    .tool-detail-page .related-tool p {
      overflow: hidden;
      height: 40px;
      margin: 0;
      color: var(--muted);
      font-size: 13px;
      line-height: 1.55;
    }

    .tool-detail-page .sidebar-action {
      margin-top: 18px;
      padding: 22px;
      color: #ffffff;
      background: var(--theme-dark);
      border-radius: var(--radius);
      box-shadow: 0 12px 32px rgba(7, 42, 101, .18);
    }

    .tool-detail-page .sidebar-action h2 {
      margin: 0 0 8px;
      font-size: 20px;
    }

    .tool-detail-page .sidebar-action p {
      margin: 0 0 16px;
      color: #d8e6ff;
      font-size: 14px;
    }

    .tool-detail-page .sidebar-action a {
      padding: 10px 14px;
      display: inline-flex;
      color: var(--theme-dark);
      background: #ffffff;
      border-radius: 9px;
      font-weight: 850;
    }

    .footer {
      color: #c7d3e6;
      background: #09182f;
    }

    .footer-main {
      padding: 58px 0 42px;
      display: grid;
      grid-template-columns: 1.45fr repeat(3, 1fr);
      gap: 42px;
    }

    .footer .logo {
      color: #ffffff;
    }

    .footer-brand p {
      max-width: 430px;
      margin: 18px 0 0;
      color: #9fb0c9;
      font-size: 14px;
    }

    .footer h2 {
      margin: 0 0 16px;
      color: #ffffff;
      font-size: 16px;
    }

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

    .footer-links a {
      color: #aebdd2;
      font-size: 14px;
      transition: color .2s ease, transform .2s ease;
    }

    .footer-links a:hover {
      color: #ffffff;
      transform: translateX(2px);
    }

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

    .footer-bottom {
      min-height: 64px;
      padding: 15px 0;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
      color: #8698b2;
      border-top: 1px solid rgba(255, 255, 255, .09);
      font-size: 13px;
    }

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

      .header-inner {
        justify-content: space-between;
      }

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

      .hamburger {
        display: block;
      }
    }

    @media (max-width: 900px) {
      .tool-detail-page .tool-layout {
        grid-template-columns: minmax(0, 1fr);
      }

      .tool-detail-page .sidebar-card {
        position: static;
      }

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

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

    @media (max-width: 680px) {
      .container {
        width: min(100% - 28px, 1180px);
      }

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

      .topbar-contact {
        flex-wrap: wrap;
        gap: 3px 14px;
      }

      .header-inner {
        min-height: 66px;
        gap: 12px;
      }

      .header .logo span {
        max-width: 118px;
      }

      .header .logo img {
        width: 38px;
        height: 38px;
        flex-basis: 38px;
      }

      .member-entry,
      .account-btn {
        display: none;
      }

      .tool-detail-page {
        padding: 30px 0 52px;
      }

      .tool-detail-page .tool-hero {
        padding: 25px 20px;
        border-radius: 20px;
      }

      .tool-detail-page .tool-title-row {
        align-items: flex-start;
        flex-direction: column;
        gap: 14px;
      }

      .tool-detail-page .tool-icon {
        width: 68px;
        height: 68px;
        flex-basis: 68px;
      }

      .tool-detail-page .tool-intro {
        font-size: 15px;
      }

      .tool-detail-page .section-heading,
      .tool-detail-page .tool-content,
      .tool-detail-page .usage-card {
        padding: 20px;
      }

      .tool-detail-page .usage-steps,
      .tool-detail-page .related-tools-list {
        grid-template-columns: 1fr;
      }

      .footer-main {
        padding-top: 44px;
        grid-template-columns: 1fr;
        gap: 30px;
      }

      .footer-bottom {
        align-items: flex-start;
        flex-direction: column;
        justify-content: center;
        gap: 4px;
      }
    }