:root {
      --brand: #0B3D91;
      --theme-token: "{主题色}";
      --brand-dark: #072b68;
      --brand-soft: #eaf1fb;
      --orange: #f97316;
      --orange-soft: #fff1e8;
      --ink: #172033;
      --muted: #657086;
      --line: #dce2eb;
      --surface: #ffffff;
      --page: #f5f7fa;
      --success: #16845b;
      --shadow: 0 14px 34px rgba(23, 32, 51, 0.1);
      --container: 1180px;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

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

    body,
    button,
    input {
      font-size: 15px;
    }

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

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

    button {
      color: inherit;
      font-family: inherit;
    }

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

    .topbar {
      color: #dce8fb;
      background: #071d3c;
      font-size: 13px;
    }

    .topbar .container {
      min-height: 36px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
    }

    .topbar-links {
      display: flex;
      align-items: center;
      gap: 22px;
    }

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

    .header {
      position: sticky;
      z-index: 100;
      top: 0;
      border-bottom: 1px solid rgba(11, 61, 145, 0.1);
      background: rgba(255, 255, 255, 0.98);
      box-shadow: 0 4px 18px rgba(23, 32, 51, 0.05);
    }

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

    .logo {
      min-width: 190px;
      display: inline-flex;
      align-items: center;
      gap: 11px;
      color: var(--brand);
      font-size: 19px;
      font-weight: 800;
    }

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

    .main-nav {
      flex: 1;
      align-self: stretch;
    }

    .nav-list {
      height: 100%;
      margin: 0;
      padding: 0;
      display: flex;
      align-items: stretch;
      justify-content: center;
      list-style: none;
    }

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

    .nav-link {
      height: 100%;
      padding: 0 15px;
      display: inline-flex;
      align-items: center;
      color: #273246;
      font-weight: 650;
      white-space: nowrap;
    }

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

    .has-arrow::after {
      width: 6px;
      height: 6px;
      margin: -4px 0 0 8px;
      border-right: 1.5px solid currentColor;
      border-bottom: 1.5px solid currentColor;
      content: "";
      transform: rotate(45deg);
    }

    .dropdown-panel,
    .mega-menu {
      position: absolute;
      z-index: 120;
      top: 100%;
      visibility: hidden;
      opacity: 0;
      border: 1px solid var(--line);
      background: #ffffff;
      box-shadow: var(--shadow);
      transform: translateY(8px);
      transition: opacity 0.18s ease, transform 0.18s ease, visibility 0.18s;
    }

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

    .dropdown-panel {
      left: 0;
      width: 290px;
      padding: 10px;
    }

    .dropdown-panel a {
      padding: 10px 12px;
      display: block;
      border-radius: 5px;
      color: #344057;
    }

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

    .mega-menu {
      left: 50%;
      width: min(760px, 78vw);
      padding: 22px;
      transform: translate(-50%, 8px);
    }

    .nav-item:hover .dropdown-panel,
    .nav-item:focus-within .dropdown-panel {
      visibility: visible;
      opacity: 1;
      transform: translateY(0);
    }

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

    .nav-item:nth-last-child(-n+3) .mega-menu {
      right: 0;
      left: auto;
      transform: translateY(8px);
    }

    .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-title {
      margin-bottom: 12px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
      color: var(--brand);
      font-weight: 800;
    }

    .mega-title a {
      color: var(--muted);
      font-size: 13px;
      font-weight: 500;
    }

    .mega-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 10px;
    }

    .mega-card {
      min-width: 0;
      padding: 13px;
      display: grid;
      gap: 4px;
      border: 1px solid #e7ebf1;
      border-radius: 6px;
      background: #ffffff;
    }

    .mega-card:hover {
      border-color: #a9bee1;
      background: #f8fbff;
    }

    .mega-card img {
      width: 26px;
      height: 26px;
      margin-bottom: 3px;
      object-fit: contain;
    }

    .mega-card strong,
    .mega-card small {
      overflow: hidden;
      text-overflow: ellipsis;
    }

    .mega-card strong {
      color: #202b3e;
    }

    .mega-card small {
      color: var(--muted);
      line-height: 1.5;
    }

    .mega-footer {
      margin-top: 15px;
      padding-top: 13px;
      display: block;
      border-top: 1px solid var(--line);
      color: var(--brand);
      font-weight: 700;
    }

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

    .member-link {
      color: var(--brand);
      font-weight: 700;
    }

    .open-account {
      padding: 9px 15px;
      border-radius: 5px;
      color: #ffffff;
      background: var(--brand);
      font-weight: 700;
    }

    .open-account:hover {
      background: var(--brand-dark);
    }

    .hamburger {
      width: 42px;
      height: 42px;
      padding: 9px;
      display: none;
      border: 1px solid var(--line);
      border-radius: 5px;
      background: #ffffff;
      cursor: pointer;
    }

    .hamburger span {
      width: 100%;
      height: 2px;
      margin: 4px 0;
      display: block;
      background: var(--ink);
      transition: transform 0.2s ease, opacity 0.2s 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: 180;
      inset: 0;
      visibility: hidden;
      opacity: 0;
      background: rgba(7, 18, 35, 0.58);
      transition: 0.22s ease;
    }

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

    .mobile-drawer {
      position: fixed;
      z-index: 190;
      top: 0;
      right: 0;
      width: min(390px, 90vw);
      height: 100vh;
      overflow-y: auto;
      background: #ffffff;
      box-shadow: -18px 0 45px rgba(7, 18, 35, 0.2);
      transform: translateX(105%);
      transition: transform 0.24s ease;
    }

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

    .drawer-head {
      min-height: 70px;
      padding: 14px 18px;
      display: flex;
      align-items: center;
      gap: 14px;
      color: #ffffff;
      background: var(--brand);
    }

    .drawer-head strong {
      min-width: 0;
      flex: 1;
    }

    .drawer-head a {
      padding: 6px 10px;
      border: 1px solid rgba(255, 255, 255, 0.5);
      border-radius: 4px;
    }

    .drawer-close {
      width: 36px;
      height: 36px;
      padding: 0;
      border: 0;
      color: #ffffff;
      background: transparent;
      font-size: 30px;
      line-height: 1;
      cursor: pointer;
    }

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

    .drawer-link,
    .drawer-toggle {
      width: 100%;
      min-height: 50px;
      padding: 12px 4px;
      display: flex;
      align-items: center;
      border: 0;
      border-bottom: 1px solid var(--line);
      background: transparent;
      text-align: left;
      font-weight: 700;
      cursor: pointer;
    }

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

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

    .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: 10px 15px;
      display: block;
      border-bottom: 1px solid #e8edf4;
      color: #4b566b;
    }

    .about-page {
      overflow: hidden;
    }

    .about-page .about-intro {
      padding: 78px 0 68px;
      color: #ffffff;
      background: #10213d;
    }

    .about-page .about-kicker {
      margin: 0 0 13px;
      color: #ff9a52;
      font-size: 14px;
      font-weight: 800;
    }

    .about-page .about-intro h1 {
      max-width: 820px;
      margin: 0;
      font-size: clamp(34px, 5vw, 62px);
      line-height: 1.15;
      letter-spacing: 0;
    }

    .about-page .about-lead {
      max-width: 780px;
      margin: 23px 0 0;
      color: #cdd8e8;
      font-size: 18px;
    }

    .about-page .intro-index {
      margin-top: 42px;
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      border-top: 1px solid rgba(255, 255, 255, 0.16);
      border-bottom: 1px solid rgba(255, 255, 255, 0.16);
    }

    .about-page .intro-index div {
      min-height: 118px;
      padding: 25px 28px;
      border-right: 1px solid rgba(255, 255, 255, 0.16);
    }

    .about-page .intro-index div:last-child {
      border-right: 0;
    }

    .about-page .intro-index strong {
      display: block;
      color: #ff9a52;
      font-size: 25px;
    }

    .about-page .intro-index span {
      color: #e4ebf5;
    }

    .about-page .section {
      padding: 76px 0;
    }

    .about-page .section-white {
      background: #ffffff;
    }

    .about-page .section-heading {
      max-width: 720px;
      margin-bottom: 34px;
    }

    .about-page .section-heading small {
      display: block;
      color: var(--orange);
      font-weight: 800;
    }

    .about-page .section-heading h2 {
      margin: 7px 0 10px;
      color: #17233a;
      font-size: 34px;
      line-height: 1.25;
      letter-spacing: 0;
    }

    .about-page .section-heading p {
      margin: 0;
      color: var(--muted);
    }

    .about-page .mission-layout {
      display: grid;
      grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
      gap: 50px;
      align-items: start;
    }

    .about-page .mission-copy p {
      margin: 0 0 19px;
      color: #4f5a6f;
      font-size: 16px;
    }

    .about-page .principle-list {
      border-top: 1px solid var(--line);
    }

    .about-page .principle {
      padding: 18px 0;
      display: grid;
      grid-template-columns: 44px 1fr;
      gap: 15px;
      border-bottom: 1px solid var(--line);
    }

    .about-page .principle b {
      color: var(--orange);
      font-size: 18px;
    }

    .about-page .principle strong {
      display: block;
      margin-bottom: 3px;
      color: #202b3e;
    }

    .about-page .principle span {
      color: var(--muted);
    }

    .about-page .service-grid {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      border: 1px solid var(--line);
      background: #ffffff;
    }

    .about-page .service-item {
      min-height: 250px;
      padding: 28px 24px;
      border-right: 1px solid var(--line);
    }

    .about-page .service-item:last-child {
      border-right: 0;
    }

    .about-page .service-number {
      color: var(--brand);
      font-size: 13px;
      font-weight: 800;
    }

    .about-page .service-item h3 {
      margin: 38px 0 10px;
      font-size: 20px;
    }

    .about-page .service-item p {
      margin: 0;
      color: var(--muted);
    }

    .about-page .method-panel {
      border-top: 4px solid var(--brand);
      background: #ffffff;
      box-shadow: var(--shadow);
    }

    .about-page .method-row {
      min-height: 130px;
      padding: 24px 30px;
      display: grid;
      grid-template-columns: 90px minmax(180px, 0.6fr) minmax(0, 1fr);
      gap: 24px;
      align-items: center;
      border-bottom: 1px solid var(--line);
    }

    .about-page .method-row:last-child {
      border-bottom: 0;
    }

    .about-page .method-row > span {
      color: var(--orange);
      font-size: 28px;
      font-weight: 800;
    }

    .about-page .method-row h3 {
      margin: 0;
      font-size: 20px;
    }

    .about-page .method-row p {
      margin: 0;
      color: var(--muted);
    }

    .about-page .trust-band {
      padding: 66px 0;
      color: #ffffff;
      background: var(--brand);
    }

    .about-page .trust-inner {
      display: grid;
      grid-template-columns: minmax(0, 1fr) auto;
      gap: 40px;
      align-items: center;
    }

    .about-page .trust-inner h2 {
      margin: 0 0 10px;
      font-size: 32px;
      line-height: 1.3;
      letter-spacing: 0;
    }

    .about-page .trust-inner p {
      max-width: 760px;
      margin: 0;
      color: #d9e6fa;
    }

    .about-page .trust-action {
      padding: 12px 20px;
      border: 1px solid #ffffff;
      border-radius: 5px;
      color: var(--brand);
      background: #ffffff;
      font-weight: 800;
      white-space: nowrap;
    }

    .about-page .risk-note {
      margin-top: 25px;
      padding: 18px 20px;
      border-left: 4px solid var(--orange);
      color: #4d596d;
      background: var(--orange-soft);
    }

    .footer {
      padding: 58px 0 20px;
      color: #b8c5d7;
      background: #07182f;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1fr;
      gap: 45px;
    }

    .footer-brand {
      margin-bottom: 12px;
      color: #ffffff;
      font-size: 23px;
      font-weight: 800;
    }

    .footer p {
      margin: 8px 0;
      color: #9eacc0;
    }

    .footer h3 {
      margin: 0 0 14px;
      color: #ffffff;
      font-size: 16px;
    }

    .footer a {
      margin: 8px 0;
      display: block;
      color: #b8c5d7;
    }

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

    .footer-bottom {
      margin-top: 38px;
      padding-top: 20px;
      display: flex;
      justify-content: space-between;
      gap: 20px;
      border-top: 1px solid rgba(255, 255, 255, 0.12);
      color: #8493a9;
      font-size: 13px;
    }

    @media (max-width: 1080px) {
      .main-nav {
        display: none;
      }

      .hamburger {
        display: block;
      }

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

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

      .about-page .service-grid {
        grid-template-columns: repeat(2, 1fr);
      }

      .about-page .service-item {
        border-bottom: 1px solid var(--line);
      }

      .about-page .service-item:nth-child(2) {
        border-right: 0;
      }

      .about-page .service-item:nth-last-child(-n+2) {
        border-bottom: 0;
      }
    }

    @media (max-width: 820px) {
      .topbar .container,
      .footer-bottom {
        align-items: flex-start;
        flex-direction: column;
      }

      .topbar .container {
        padding: 8px 0;
        gap: 3px;
      }

      .topbar-links {
        flex-wrap: wrap;
        gap: 4px 16px;
      }

      .about-page .mission-layout,
      .about-page .trust-inner {
        grid-template-columns: 1fr;
      }

      .about-page .intro-index {
        grid-template-columns: 1fr;
      }

      .about-page .intro-index div {
        min-height: auto;
        border-right: 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.16);
      }

      .about-page .intro-index div:last-child {
        border-bottom: 0;
      }

      .about-page .method-row {
        grid-template-columns: 60px 1fr;
      }

      .about-page .method-row p {
        grid-column: 2;
      }

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

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

      .header-inner {
        min-height: 66px;
        gap: 10px;
      }

      .logo {
        min-width: 0;
        max-width: 48%;
        font-size: 16px;
      }

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

      .member-link {
        display: none;
      }

      .open-account {
        padding: 8px 11px;
      }

      .about-page .about-intro {
        padding: 54px 0 48px;
      }

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

      .about-page .about-lead {
        font-size: 16px;
      }

      .about-page .section {
        padding: 55px 0;
      }

      .about-page .section-heading h2,
      .about-page .trust-inner h2 {
        font-size: 27px;
      }

      .about-page .service-grid {
        grid-template-columns: 1fr;
      }

      .about-page .service-item {
        min-height: 0;
        border-right: 0;
        border-bottom: 1px solid var(--line);
      }

      .about-page .service-item:nth-last-child(-n+2) {
        border-bottom: 1px solid var(--line);
      }

      .about-page .service-item:last-child {
        border-bottom: 0;
      }

      .about-page .service-item h3 {
        margin-top: 20px;
      }

      .about-page .method-row {
        padding: 22px 18px;
        grid-template-columns: 42px 1fr;
        gap: 12px;
      }

      .about-page .method-row > span {
        font-size: 22px;
      }

      .footer-grid {
        grid-template-columns: 1fr;
        gap: 28px;
      }
    }