:root {
      --theme: #0B3D91;
      --theme-dark: #082c68;
      --theme-light: #eaf2ff;
      --cyan: #16c5d8;
      --ink: #13213b;
      --muted: #68758b;
      --line: #dce5f1;
      --surface: #ffffff;
      --soft: #f4f7fb;
      --shadow: 0 16px 45px rgba(11, 61, 145, .10);
      --radius: 18px;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      color: var(--ink);
      background: #f7f9fc;
      font-family: "Noto Sans SC", "Microsoft YaHei", Arial, sans-serif;
      line-height: 1.6;
    }

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

    button,
    input {
      font: inherit;
    }

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

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

    .topbar {
      color: #d9e8ff;
      background: #071b40;
      font-size: 13px;
    }

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

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

    .topbar a {
      color: #d9e8ff;
      transition: color .2s ease;
    }

    .topbar a:hover {
      color: #5eeaf4;
    }

    .header {
      position: relative;
      z-index: 30;
      background: rgba(255, 255, 255, .97);
      border-bottom: 1px solid var(--line);
      box-shadow: 0 4px 20px rgba(11, 61, 145, .05);
    }

    .header-inner {
      min-height: 78px;
      display: flex;
      align-items: center;
      gap: 28px;
    }

    .logo {
      flex: 0 0 auto;
      display: inline-flex;
      align-items: center;
      gap: 9px;
      color: var(--ink);
      font-weight: 800;
      white-space: nowrap;
    }

    .logo img {
      width: 28px;
      height: 28px;
      object-fit: contain;
    }

    .logo-mark {
      width: 32px;
      height: 32px;
      display: inline-grid;
      place-items: center;
      border-radius: 10px;
      color: #fff;
      background: linear-gradient(135deg, var(--theme), var(--cyan));
      font-size: 12px;
      letter-spacing: .04em;
    }

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

    .nav-list {
      padding: 0;
      margin: 0;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 3px;
      list-style: none;
    }

    .nav-item {
      position: relative;
    }

    .nav-link {
      min-height: 78px;
      display: inline-flex;
      align-items: center;
      padding: 0 14px;
      color: #34425c;
      font-size: 14px;
      font-weight: 600;
      white-space: nowrap;
      transition: color .2s ease, background .2s ease;
    }

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

    .dropdown-panel,
    .mega-menu {
      position: absolute;
      top: 100%;
      left: 50%;
      width: 320px;
      padding: 22px;
      opacity: 0;
      visibility: hidden;
      transform: translate(-50%, 8px);
      border: 1px solid var(--line);
      border-radius: 0 0 16px 16px;
      background: #fff;
      box-shadow: var(--shadow);
      transition: opacity .2s ease, visibility .2s ease, transform .2s ease;
    }

    .dropdown-panel::before,
    .mega-menu::before {
      content: "";
      position: absolute;
      top: -12px;
      left: 0;
      right: 0;
      height: 14px;
    }

    .mega-menu {
      width: min(720px, 80vw);
    }

    .nav-item:hover > .dropdown-panel,
    .nav-item:hover > .mega-menu,
    .nav-item:focus-within > .dropdown-panel,
    .nav-item:focus-within > .mega-menu {
      opacity: 1;
      visibility: visible;
      transform: translate(-50%, 0);
    }

    .menu-heading {
      margin: 0 0 13px;
      color: var(--theme);
      font-size: 14px;
      font-weight: 800;
    }

    .menu-list {
      padding: 0;
      margin: 0;
      list-style: none;
    }

    .menu-list li + li {
      border-top: 1px solid #eef2f7;
    }

    .menu-list a {
      min-height: 37px;
      display: flex;
      align-items: center;
      gap: 8px;
      color: #45536a;
      font-size: 13px;
      transition: color .2s ease, padding .2s ease;
    }

    .menu-list a:hover {
      padding-left: 5px;
      color: var(--theme);
    }

    .mega-grid {
      display: grid;
      grid-template-columns: 1.25fr .75fr;
      gap: 26px;
    }

    .broker-mega-card,
    .video-mega-card {
      display: flex;
      align-items: center;
      gap: 10px;
      padding: 9px 0;
      border-bottom: 1px solid #eef2f7;
    }

    .broker-mega-card img,
    .video-mega-card img {
      width: 38px;
      height: 38px;
      flex: 0 0 38px;
      object-fit: cover;
      border-radius: 9px;
      background: var(--soft);
    }

    .video-mega-card img {
      width: 58px;
      flex-basis: 58px;
      aspect-ratio: 16 / 9;
    }

    .mega-title,
    .mega-meta {
      display: block;
    }

    .mega-title {
      color: var(--ink);
      font-size: 12px;
      line-height: 1.4;
    }

    .mega-meta {
      margin-top: 2px;
      color: var(--muted);
      font-size: 11px;
      line-height: 1.45;
    }

    .header-btns {
      display: flex;
      align-items: center;
      gap: 12px;
      flex: 0 0 auto;
      color: var(--theme);
      font-size: 13px;
      font-weight: 700;
      white-space: nowrap;
    }

    .account-link {
      padding: 9px 15px;
      border-radius: 999px;
      color: #fff;
      background: var(--theme);
      transition: background .2s ease, transform .2s ease;
    }

    .account-link:hover {
      background: var(--theme-dark);
      transform: translateY(-1px);
    }

    .hamburger {
      width: 42px;
      height: 42px;
      padding: 9px;
      display: none;
      border: 1px solid var(--line);
      border-radius: 11px;
      background: #fff;
      cursor: pointer;
    }

    .hamburger span {
      width: 22px;
      height: 2px;
      display: block;
      margin: 4px auto;
      background: var(--theme);
      transition: transform .2s ease, opacity .2s ease;
    }

    .hamburger.active span:first-child {
      transform: translateY(6px) rotate(45deg);
    }

    .hamburger.active span:nth-child(2) {
      opacity: 0;
    }

    .hamburger.active span:last-child {
      transform: translateY(-6px) rotate(-45deg);
    }

    .drawer-overlay {
      position: fixed;
      inset: 0;
      z-index: 80;
      background: rgba(7, 27, 64, .48);
      opacity: 0;
      visibility: hidden;
      transition: opacity .25s ease, visibility .25s ease;
    }

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

    .mobile-drawer {
      position: fixed;
      top: 0;
      right: 0;
      z-index: 90;
      width: min(390px, 88vw);
      height: 100vh;
      overflow-y: auto;
      background: #fff;
      box-shadow: -18px 0 45px rgba(7, 27, 64, .22);
      transform: translateX(100%);
      transition: transform .25s ease;
    }

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

    .drawer-head {
      min-height: 76px;
      padding: 16px 20px;
      display: flex;
      align-items: center;
      gap: 15px;
      color: var(--theme);
      border-bottom: 1px solid var(--line);
      font-weight: 800;
    }

    .drawer-head > :first-child {
      margin-right: auto;
    }

    .drawer-head a {
      padding: 7px 12px;
      border-radius: 999px;
      color: #fff;
      background: var(--theme);
      font-size: 13px;
    }

    .drawer-close {
      width: 34px;
      height: 34px;
      border: 1px solid var(--line);
      border-radius: 50%;
      color: var(--theme);
      background: #fff;
      font-size: 24px;
      line-height: 1;
      cursor: pointer;
    }

    .drawer-menu {
      padding: 10px 20px 30px;
    }

    .drawer-link,
    .drawer-toggle {
      width: 100%;
      min-height: 48px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      border: 0;
      border-bottom: 1px solid #edf1f6;
      color: var(--ink);
      background: transparent;
      font-size: 15px;
      font-weight: 700;
      text-align: left;
      cursor: pointer;
    }

    .drawer-toggle::after {
      content: "+";
      color: var(--cyan);
      font-size: 20px;
      font-weight: 400;
    }

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

    .drawer-submenu {
      max-height: 0;
      overflow: hidden;
      padding-left: 15px;
      transition: max-height .25s ease;
    }

    .drawer-submenu.open {
      max-height: 600px;
    }

    .drawer-submenu a {
      min-height: 38px;
      display: flex;
      align-items: center;
      color: var(--muted);
      border-bottom: 1px solid #f0f3f7;
      font-size: 13px;
    }

    .footer {
      color: #d4e0f5;
      background: #071b40;
    }

    .footer-main {
      padding-top: 55px;
      padding-bottom: 45px;
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1fr;
      gap: 35px;
    }

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

    .footer-brand > span {
      color: #fff;
      font-size: 20px;
      font-weight: 800;
    }

    .footer-brand p {
      max-width: 280px;
      margin: 13px 0 0;
      color: #9fb2d2;
      font-size: 13px;
      line-height: 1.8;
    }

    .footer-links {
      padding: 0;
      margin: 0;
      list-style: none;
    }

    .footer-links li + li {
      margin-top: 8px;
    }

    .footer-links a,
    .footer-contact a,
    .footer-contact span {
      color: #a9bbd8;
      font-size: 13px;
      transition: color .2s ease;
    }

    .footer-links a:hover,
    .footer-contact a:hover {
      color: #5eeaf4;
    }

    .footer-contact {
      display: flex;
      flex-direction: column;
      gap: 9px;
    }

    .footer-bottom {
      border-top: 1px solid rgba(210, 226, 255, .15);
    }

    .footer-bottom-inner {
      min-height: 58px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
      color: #8fa4c5;
      font-size: 12px;
    }

    .productlist-main {
      padding: 58px 0 80px;
    }

    .page-intro {
      position: relative;
      overflow: hidden;
      padding: 48px clamp(24px, 5vw, 70px);
      border-radius: 24px;
      color: #fff;
      background:
        radial-gradient(circle at 85% 20%, rgba(22, 197, 216, .42), transparent 24%),
        linear-gradient(120deg, #0a2d70 0%, #0B3D91 52%, #1162af 100%);
      box-shadow: 0 18px 48px rgba(11, 61, 145, .20);
    }

    .page-intro::after {
      content: "";
      position: absolute;
      right: 7%;
      bottom: -80px;
      width: 240px;
      height: 240px;
      border: 1px solid rgba(255, 255, 255, .22);
      border-radius: 50%;
      box-shadow: 0 0 0 26px rgba(255, 255, 255, .05), 0 0 0 54px rgba(255, 255, 255, .04);
    }

    .eyebrow {
      position: relative;
      z-index: 1;
      margin: 0 0 10px;
      color: #73eff5;
      font-size: 12px;
      font-weight: 800;
      letter-spacing: .14em;
      text-transform: uppercase;
    }

    .page-intro h1 {
      position: relative;
      z-index: 1;
      max-width: 650px;
      margin: 0;
      font-size: clamp(30px, 5vw, 52px);
      line-height: 1.15;
      letter-spacing: -.04em;
    }

    .page-intro p {
      position: relative;
      z-index: 1;
      max-width: 650px;
      margin: 18px 0 0;
      color: #d9e8ff;
      font-size: 16px;
    }

    .product-toolbar {
      margin: 34px 0 22px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
    }

    .product-toolbar h2 {
      margin: 0;
      font-size: 25px;
      letter-spacing: -.02em;
    }

    .product-toolbar p {
      margin: 5px 0 0;
      color: var(--muted);
      font-size: 13px;
    }

    .category-strip {
      display: flex;
      flex-wrap: wrap;
      gap: 9px;
      justify-content: flex-end;
    }

    .category-strip a {
      padding: 8px 14px;
      border: 1px solid var(--line);
      border-radius: 999px;
      color: #4c5b73;
      background: #fff;
      font-size: 13px;
      transition: border-color .2s ease, color .2s ease, background .2s ease;
    }

    .category-strip a:hover,
    .category-strip a.active {
      color: var(--theme);
      border-color: rgba(11, 61, 145, .35);
      background: var(--theme-light);
    }

    .product-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 22px;
    }

    .product-card {
      min-width: 0;
      display: flex;
      flex-direction: column;
      overflow: hidden;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: var(--surface);
      box-shadow: 0 8px 25px rgba(21, 47, 91, .05);
      transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
    }

    .product-card:hover {
      border-color: rgba(11, 61, 145, .30);
      box-shadow: var(--shadow);
      transform: translateY(-5px);
    }

    .product-cover {
      position: relative;
      aspect-ratio: 16 / 9;
      overflow: hidden;
      background: linear-gradient(135deg, #dceaff, #edfafd);
    }

    .product-cover img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform .35s ease;
    }

    .product-card:hover .product-cover img {
      transform: scale(1.04);
    }

    .product-cover::after {
      content: "产品工具";
      position: absolute;
      top: 14px;
      left: 14px;
      padding: 5px 10px;
      border-radius: 999px;
      color: #fff;
      background: rgba(11, 61, 145, .88);
      font-size: 11px;
      font-weight: 700;
    }

    .product-body {
      flex: 1;
      display: flex;
      flex-direction: column;
      padding: 22px;
    }

    .product-body h3 {
      margin: 0;
      color: var(--ink);
      font-size: 19px;
      line-height: 1.35;
    }

    .product-summary {
      min-height: 50px;
      margin: 12px 0 17px;
      color: var(--muted);
      font-size: 14px;
      line-height: 1.75;
    }

    .product-meta {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 8px 16px;
      margin-top: auto;
      padding-top: 15px;
      border-top: 1px solid #edf1f6;
      color: #8793a6;
      font-size: 12px;
    }

    .product-meta strong {
      color: var(--theme);
      font-weight: 700;
    }

    .product-link {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      margin-top: 18px;
      color: var(--theme);
      font-size: 13px;
      font-weight: 800;
    }

    .product-link::after {
      content: "→";
      color: var(--cyan);
      font-size: 17px;
      transition: transform .2s ease;
    }

    .product-link:hover::after {
      transform: translateX(4px);
    }

    .pagination {
      margin-top: 38px;
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 8px;
    }

    .pagination a {
      min-width: 38px;
      height: 38px;
      padding: 0 12px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border: 1px solid var(--line);
      border-radius: 9px;
      color: #53637a;
      background: #fff;
      font-size: 13px;
      transition: color .2s ease, border-color .2s ease, background .2s ease;
    }

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

    @media (max-width: 1050px) {
      .header-inner {
        gap: 15px;
      }

      .nav-link {
        padding: 0 9px;
        font-size: 13px;
      }

      .header-btns > span {
        display: none;
      }

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

    @media (max-width: 820px) {
      .topbar-inner {
        min-height: 34px;
      }

      .topbar-links {
        gap: 10px;
      }

      .main-nav {
        display: none;
      }

      .hamburger {
        display: block;
      }

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

      .account-link {
        padding: 8px 12px;
      }

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

      .product-toolbar {
        align-items: flex-start;
        flex-direction: column;
      }

      .category-strip {
        justify-content: flex-start;
      }
    }

    @media (max-width: 560px) {
      .container {
        width: min(100% - 28px, 1180px);
      }

      .topbar-inner {
        align-items: flex-start;
        flex-direction: column;
        gap: 0;
        padding: 7px 0;
      }

      .topbar-links {
        width: 100%;
        justify-content: space-between;
      }

      .page-intro {
        padding: 34px 23px;
        border-radius: 18px;
      }

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

      .productlist-main {
        padding: 30px 0 55px;
      }

      .product-grid {
        grid-template-columns: 1fr;
        gap: 17px;
      }

      .product-toolbar h2 {
        font-size: 22px;
      }

      .footer-main {
        grid-template-columns: 1fr;
        gap: 28px;
        padding-top: 38px;
        padding-bottom: 35px;
      }

      .footer-bottom-inner {
        align-items: flex-start;
        flex-direction: column;
        justify-content: center;
        padding: 13px 0;
        gap: 4px;
      }
    }