:root {
      --primary: #0B3D91;
      --primary-dark: #06275f;
      --primary-light: #eaf1fc;
      --template-theme: {主题色};
      --amber: #d99516;
      --wax: #f2c14e;
      --brown: #3e2b1c;
      --ink: #182230;
      --muted: #657080;
      --line: #dfe4ea;
      --surface: #ffffff;
      --soft: #f5f7fa;
      --container: 1180px;
      --shadow: 0 16px 40px rgba(17, 35, 63, 0.11);
    }

    * {
      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;
      font-size: 15px;
      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(calc(100% - 40px), var(--container));
      margin-inline: auto;
    }

    .topbar {
      color: #ffffff;
      background: var(--primary-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: 24px;
    }

    .topbar a {
      color: rgba(255, 255, 255, 0.86);
      transition: color 0.2s ease;
    }

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

    .header {
      position: relative;
      z-index: 50;
      background: rgba(255, 255, 255, 0.98);
      border-bottom: 1px solid var(--line);
    }

    .header-inner {
      min-height: 76px;
      display: flex;
      align-items: center;
      gap: 26px;
    }

    .logo {
      min-width: 0;
      display: inline-flex;
      align-items: center;
      gap: 10px;
      color: var(--primary-dark);
      font-size: 19px;
      font-weight: 800;
      white-space: nowrap;
    }

    .logo img {
      width: 40px;
      height: 40px;
      object-fit: contain;
    }

    .logo span {
      max-width: 190px;
      overflow: hidden;
      text-overflow: ellipsis;
    }

    .main-nav {
      align-self: stretch;
      margin-left: auto;
    }

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

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

    .nav-link {
      position: relative;
      display: inline-flex;
      align-items: center;
      padding: 0 13px;
      color: #303a47;
      font-size: 14px;
      font-weight: 700;
      white-space: nowrap;
      transition: color 0.2s ease;
    }

    .nav-link::after {
      position: absolute;
      right: 13px;
      bottom: 0;
      left: 13px;
      height: 3px;
      content: "";
      background: var(--primary);
      transform: scaleX(0);
      transition: transform 0.2s ease;
    }

    .nav-link.has-arrow {
      padding-right: 27px;
    }

    .nav-link.has-arrow::before {
      position: absolute;
      top: 50%;
      right: 13px;
      width: 6px;
      height: 6px;
      content: "";
      border-right: 1.5px solid currentColor;
      border-bottom: 1.5px solid currentColor;
      transform: translateY(-70%) rotate(45deg);
      transition: transform 0.2s ease;
    }

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

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

    .nav-item:hover .nav-link.has-arrow::before,
    .nav-item:focus-within .nav-link.has-arrow::before {
      transform: translateY(-25%) rotate(225deg);
    }

    .dropdown-panel,
    .mega-menu {
      position: absolute;
      top: 100%;
      z-index: 70;
      visibility: hidden;
      opacity: 0;
      background: #ffffff;
      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;
      pointer-events: none;
    }

    .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);
      pointer-events: auto;
    }

    .dropdown-panel {
      left: 0;
      width: 280px;
      padding: 10px;
      border-radius: 0 0 6px 6px;
    }

    .dropdown-panel > a {
      display: block;
      padding: 10px 12px;
      overflow: hidden;
      color: #3a4552;
      border-radius: 4px;
      text-overflow: ellipsis;
      white-space: nowrap;
    }

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

    .dropdown-panel .dropdown-all {
      margin-top: 7px;
      color: var(--primary);
      border-top: 1px solid var(--line);
      border-radius: 0;
      font-weight: 700;
    }

    .mega-menu {
      left: 50%;
      width: min(860px, calc(100vw - 40px));
      padding: 22px;
      border-radius: 0 0 6px 6px;
      transform: translate(-50%, 8px);
    }

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

    .mega-menu-products,
    .mega-menu-video {
      width: min(920px, calc(100vw - 40px));
    }

    .mega-title {
      margin: 0 0 14px;
      color: var(--primary-dark);
      font-size: 14px;
      font-weight: 800;
    }

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

    .mega-card {
      min-width: 0;
      min-height: 80px;
      display: flex;
      align-items: flex-start;
      gap: 11px;
      padding: 11px;
      background: var(--soft);
      border: 1px solid transparent;
      border-radius: 5px;
      transition: background 0.2s ease, border-color 0.2s ease;
    }

    .mega-card:hover {
      background: #ffffff;
      border-color: #b7c9e8;
    }

    .mega-card img {
      width: 48px;
      height: 48px;
      flex: 0 0 48px;
      object-fit: cover;
      background: #ffffff;
      border: 1px solid var(--line);
      border-radius: 4px;
    }

    .mega-card span {
      min-width: 0;
    }

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

    .mega-card strong {
      color: #263240;
      white-space: nowrap;
    }

    .mega-card p {
      margin: 4px 0;
      color: var(--muted);
      font-size: 12px;
      line-height: 1.45;
      white-space: nowrap;
    }

    .mega-card small {
      color: #778291;
      font-size: 11px;
      line-height: 1.5;
      white-space: nowrap;
    }

    .mega-categories {
      margin-bottom: 16px;
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .mega-categories a {
      padding: 6px 11px;
      color: #445061;
      background: var(--soft);
      border: 1px solid var(--line);
      border-radius: 4px;
      font-size: 12px;
    }

    .mega-categories a:hover {
      color: var(--primary);
      border-color: #b7c9e8;
    }

    .mega-footer {
      margin-top: 16px;
      padding-top: 13px;
      display: block;
      color: var(--primary);
      border-top: 1px solid var(--line);
      font-weight: 800;
      text-align: right;
    }

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

    .member-entry {
      display: inline-flex;
      align-items: center;
      white-space: nowrap;
    }

    .header-account {
      min-height: 38px;
      padding: 7px 16px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      color: #ffffff;
      background: var(--primary);
      border-radius: 4px;
      font-weight: 700;
      white-space: nowrap;
      transition: background 0.2s ease;
    }

    .header-account:hover {
      background: var(--primary-dark);
    }

    .hamburger {
      width: 42px;
      height: 42px;
      padding: 10px;
      display: none;
      flex: 0 0 42px;
      border: 1px solid var(--line);
      border-radius: 4px;
      background: #ffffff;
      cursor: pointer;
    }

    .hamburger span {
      width: 100%;
      height: 2px;
      display: block;
      margin: 4px 0;
      background: var(--primary-dark);
      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;
      inset: 0;
      z-index: 90;
      visibility: hidden;
      opacity: 0;
      background: rgba(9, 20, 35, 0.58);
      transition: opacity 0.25s ease, visibility 0.25s ease;
    }

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

    .mobile-drawer {
      position: fixed;
      top: 0;
      right: 0;
      bottom: 0;
      z-index: 100;
      width: min(390px, 92vw);
      overflow-y: auto;
      background: #ffffff;
      box-shadow: -20px 0 50px rgba(9, 20, 35, 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: #ffffff;
      background: var(--primary-dark);
    }

    .member-drawer {
      min-width: 0;
      margin-right: auto;
    }

    .drawer-head > a {
      padding: 6px 12px;
      color: var(--primary-dark);
      background: #ffffff;
      border-radius: 4px;
      font-weight: 700;
      white-space: nowrap;
    }

    .drawer-close {
      width: 36px;
      height: 36px;
      padding: 0;
      color: #ffffff;
      background: transparent;
      border: 1px solid rgba(255, 255, 255, 0.4);
      border-radius: 4px;
      font-size: 25px;
      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: #263240;
      background: transparent;
      border: 0;
      border-bottom: 1px solid var(--line);
      font-weight: 700;
      text-align: left;
      cursor: pointer;
    }

    .drawer-toggle {
      position: relative;
      padding-right: 30px;
    }

    .drawer-toggle::after {
      position: absolute;
      right: 7px;
      width: 8px;
      height: 8px;
      content: "";
      border-right: 2px solid var(--primary);
      border-bottom: 2px solid var(--primary);
      transform: rotate(45deg);
      transition: transform 0.2s ease;
    }

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

    .drawer-submenu {
      max-height: 0;
      overflow: hidden;
      background: var(--soft);
      transition: max-height 0.3s ease;
    }

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

    .drawer-submenu a {
      display: block;
      padding: 9px 14px;
      color: #566273;
      border-bottom: 1px solid #e8ebef;
      font-size: 14px;
    }

    .drawer-submenu a:hover {
      color: var(--primary);
      background: var(--primary-light);
    }

    .about-page {
      min-width: 0;
      overflow: hidden;
    }

    .about-page .about-hero {
      position: relative;
      padding: 82px 0 76px;
      color: #ffffff;
      background:
        linear-gradient(rgba(6, 39, 95, 0.9), rgba(11, 61, 145, 0.95)),
        repeating-linear-gradient(135deg, transparent 0 22px, rgba(255, 255, 255, 0.05) 22px 23px);
      text-align: center;
    }

    .about-page .about-hero::after {
      position: absolute;
      right: 0;
      bottom: 0;
      left: 0;
      height: 5px;
      content: "";
      background: linear-gradient(90deg, var(--amber), var(--wax), var(--amber));
    }

    .about-page .about-eyebrow {
      margin: 0 0 13px;
      color: #f8d77a;
      font-size: 13px;
      font-weight: 800;
    }

    .about-page .about-hero h1 {
      max-width: 850px;
      margin: 0 auto;
      font-size: clamp(34px, 5vw, 56px);
      line-height: 1.18;
      letter-spacing: 0;
    }

    .about-page .about-hero p {
      max-width: 760px;
      margin: 20px auto 0;
      color: rgba(255, 255, 255, 0.84);
      font-size: 17px;
    }

    .about-page .hero-actions {
      margin-top: 28px;
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 12px;
    }

    .about-page .primary-action,
    .about-page .secondary-action {
      min-height: 46px;
      padding: 10px 20px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border-radius: 4px;
      font-weight: 800;
    }

    .about-page .primary-action {
      color: var(--brown);
      background: var(--wax);
    }

    .about-page .primary-action:hover {
      background: #ffda70;
    }

    .about-page .secondary-action {
      color: #ffffff;
      border: 1px solid rgba(255, 255, 255, 0.5);
    }

    .about-page .secondary-action:hover {
      background: rgba(255, 255, 255, 0.1);
    }

    .about-page .section {
      padding: 78px 0;
    }

    .about-page .section-soft {
      background: var(--soft);
    }

    .about-page .section-heading {
      max-width: 760px;
      margin: 0 auto 38px;
      text-align: center;
    }

    .about-page .section-heading span {
      color: var(--primary);
      font-size: 13px;
      font-weight: 800;
    }

    .about-page .section-heading h2 {
      margin: 8px 0 12px;
      color: var(--primary-dark);
      font-size: clamp(27px, 4vw, 38px);
      line-height: 1.25;
      letter-spacing: 0;
    }

    .about-page .section-heading p {
      margin: 0;
      color: var(--muted);
      font-size: 16px;
    }

    .about-page .mission-panel {
      max-width: 980px;
      margin: -34px auto 0;
      position: relative;
      z-index: 2;
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      background: #ffffff;
      border: 1px solid var(--line);
      border-top: 4px solid var(--wax);
      box-shadow: var(--shadow);
    }

    .about-page .mission-item {
      padding: 30px;
      text-align: center;
    }

    .about-page .mission-item + .mission-item {
      border-left: 1px solid var(--line);
    }

    .about-page .mission-icon {
      width: 46px;
      height: 46px;
      margin: 0 auto 14px;
      display: grid;
      place-items: center;
      color: #ffffff;
      background: var(--primary);
      border-radius: 50%;
      font-size: 20px;
      font-weight: 900;
    }

    .about-page .mission-item h2 {
      margin: 0 0 7px;
      color: var(--primary-dark);
      font-size: 18px;
    }

    .about-page .mission-item p {
      margin: 0;
      color: var(--muted);
      font-size: 14px;
    }

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

    .about-page .service-card {
      min-height: 220px;
      padding: 27px;
      background: #ffffff;
      border: 1px solid var(--line);
      border-radius: 6px;
      transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
    }

    .about-page .service-card:hover {
      border-color: #acc3e9;
      box-shadow: 0 14px 30px rgba(11, 61, 145, 0.09);
      transform: translateY(-3px);
    }

    .about-page .service-number {
      width: 38px;
      height: 38px;
      display: grid;
      place-items: center;
      color: var(--brown);
      background: var(--wax);
      border-radius: 4px;
      font-weight: 900;
    }

    .about-page .service-card h3 {
      margin: 18px 0 8px;
      color: var(--primary-dark);
      font-size: 19px;
    }

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

    .about-page .principle-list {
      max-width: 920px;
      margin: 0 auto;
      position: relative;
    }

    .about-page .principle-list::before {
      position: absolute;
      top: 20px;
      bottom: 20px;
      left: 29px;
      width: 2px;
      content: "";
      background: #c9d6e8;
    }

    .about-page .principle-item {
      position: relative;
      min-height: 106px;
      padding: 0 0 30px 86px;
    }

    .about-page .principle-item:last-child {
      padding-bottom: 0;
    }

    .about-page .principle-marker {
      position: absolute;
      top: 0;
      left: 0;
      width: 60px;
      height: 60px;
      display: grid;
      place-items: center;
      color: #ffffff;
      background: var(--primary);
      border: 7px solid #e7eef9;
      border-radius: 50%;
      font-weight: 900;
    }

    .about-page .principle-item h3 {
      margin: 0 0 6px;
      color: var(--primary-dark);
      font-size: 20px;
    }

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

    .about-page .trust-band {
      color: #ffffff;
      background: var(--brown);
    }

    .about-page .trust-band .section-heading span {
      color: var(--wax);
    }

    .about-page .trust-band .section-heading h2 {
      color: #ffffff;
    }

    .about-page .trust-band .section-heading p {
      color: rgba(255, 255, 255, 0.72);
    }

    .about-page .trust-grid {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      border: 1px solid rgba(255, 255, 255, 0.17);
    }

    .about-page .trust-item {
      padding: 28px 22px;
      text-align: center;
    }

    .about-page .trust-item + .trust-item {
      border-left: 1px solid rgba(255, 255, 255, 0.17);
    }

    .about-page .trust-item strong {
      display: block;
      color: var(--wax);
      font-size: 18px;
    }

    .about-page .trust-item span {
      margin-top: 7px;
      display: block;
      color: rgba(255, 255, 255, 0.73);
      font-size: 14px;
    }

    .about-page .about-cta {
      padding: 66px 0;
      text-align: center;
    }

    .about-page .about-cta-inner {
      padding: 46px 30px;
      background: var(--primary-light);
      border: 1px solid #c8d7ef;
      border-radius: 6px;
    }

    .about-page .about-cta h2 {
      margin: 0;
      color: var(--primary-dark);
      font-size: clamp(26px, 4vw, 36px);
    }

    .about-page .about-cta p {
      max-width: 680px;
      margin: 12px auto 24px;
      color: var(--muted);
    }

    .about-page .about-cta .primary-action {
      color: #ffffff;
      background: var(--primary);
    }

    .about-page .about-cta .primary-action:hover {
      background: var(--primary-dark);
    }

    .footer {
      color: rgba(255, 255, 255, 0.76);
      background: #101a28;
    }

    .footer-main {
      padding: 58px 0 42px;
      display: grid;
      grid-template-columns: 1.6fr 1fr 1fr 1.1fr;
      gap: 42px;
    }

    .footer .logo {
      color: #ffffff;
    }

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

    .footer h3 {
      margin: 7px 0 17px;
      color: #ffffff;
      font-size: 15px;
    }

    .footer-links {
      display: grid;
      gap: 8px;
    }

    .footer-links a,
    .footer-contact a {
      color: rgba(255, 255, 255, 0.72);
      transition: color 0.2s ease;
    }

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

    .footer-contact p {
      margin: 0 0 9px;
      overflow-wrap: anywhere;
    }

    .footer-bottom {
      min-height: 66px;
      padding: 18px 0;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 22px;
      border-top: 1px solid rgba(255, 255, 255, 0.12);
      font-size: 13px;
    }

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

      .hamburger {
        display: block;
      }

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

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

    @media (max-width: 820px) {
      .about-page .mission-panel {
        grid-template-columns: 1fr;
      }

      .about-page .mission-item + .mission-item {
        border-top: 1px solid var(--line);
        border-left: 0;
      }

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

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

      .about-page .trust-item + .trust-item {
        border-left: 0;
      }

      .about-page .trust-item:nth-child(even) {
        border-left: 1px solid rgba(255, 255, 255, 0.17);
      }

      .about-page .trust-item:nth-child(n + 3) {
        border-top: 1px solid rgba(255, 255, 255, 0.17);
      }
    }

    @media (max-width: 640px) {
      .container {
        width: min(calc(100% - 28px), var(--container));
      }

      .topbar-inner {
        min-height: 54px;
        align-items: flex-start;
        flex-direction: column;
        justify-content: center;
        gap: 1px;
      }

      .topbar-contact {
        width: 100%;
        gap: 4px 14px;
        flex-wrap: wrap;
      }

      .header-inner {
        min-height: 68px;
        gap: 12px;
      }

      .header .logo span {
        max-width: 126px;
        font-size: 16px;
      }

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

      .member-entry {
        display: none;
      }

      .header-account {
        min-height: 36px;
        padding: 6px 12px;
      }

      .about-page .about-hero {
        padding: 58px 0 62px;
      }

      .about-page .about-hero p {
        font-size: 15px;
      }

      .about-page .section {
        padding: 58px 0;
      }

      .about-page .mission-panel {
        margin-top: -24px;
      }

      .about-page .mission-item {
        padding: 24px 20px;
      }

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

      .about-page .service-card {
        min-height: 0;
      }

      .about-page .principle-list::before {
        left: 22px;
      }

      .about-page .principle-item {
        padding-left: 68px;
      }

      .about-page .principle-marker {
        width: 46px;
        height: 46px;
        border-width: 5px;
      }

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

      .about-page .trust-item:nth-child(even) {
        border-left: 0;
      }

      .about-page .trust-item + .trust-item {
        border-top: 1px solid rgba(255, 255, 255, 0.17);
      }

      .about-page .about-cta {
        padding: 46px 0;
      }

      .about-page .about-cta-inner {
        padding: 34px 20px;
      }

      .footer-main {
        padding: 44px 0 34px;
        grid-template-columns: 1fr;
        gap: 28px;
      }

      .footer-bottom {
        align-items: flex-start;
        flex-direction: column;
        justify-content: center;
        gap: 5px;
      }
    }

    @media (max-width: 390px) {
      .header-account {
        display: none;
      }

      .about-page .hero-actions {
        align-items: stretch;
        flex-direction: column;
      }

      .about-page .primary-action,
      .about-page .secondary-action {
        width: 100%;
      }
    }