:root {
      --template-theme: {主题色};
      --primary: #0B3D91;
      --primary-dark: #072B68;
      --primary-light: #EAF1FC;
      --ink: #10213A;
      --muted: #64748B;
      --line: #DCE3EC;
      --surface: #FFFFFF;
      --surface-soft: #F5F7FA;
      --silver: #E8EDF3;
      --gold: #B58A39;
      --success: #147D64;
      --shadow: 0 12px 32px rgba(16, 33, 58, 0.09);
      --container: 1240px;
    }

    * {
      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: 1.65;
      letter-spacing: 0;
    }

    body.drawer-lock {
      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-inline: auto;
    }

    .topbar {
      color: #E8EEF8;
      background: var(--primary-dark);
      border-bottom: 1px solid rgba(255, 255, 255, 0.12);
    }

    .topbar-inner {
      min-height: 36px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
      font-size: 13px;
    }

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

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

    .topbar-contact a:hover {
      color: #FFFFFF;
    }

    .header {
      position: relative;
      z-index: 50;
      background: rgba(255, 255, 255, 0.98);
      border-bottom: 1px solid var(--line);
      box-shadow: 0 4px 18px rgba(16, 33, 58, 0.04);
    }

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

    .logo {
      min-width: 170px;
      display: inline-flex;
      align-items: center;
      gap: 11px;
      color: var(--primary-dark);
      font-size: 18px;
      font-weight: 800;
      line-height: 1.2;
    }

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

    .main-nav {
      min-width: 0;
      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: static;
      display: flex;
      align-items: stretch;
    }

    .nav-link {
      position: relative;
      display: flex;
      align-items: center;
      gap: 6px;
      padding: 0 13px;
      color: #25354C;
      font-weight: 700;
      white-space: nowrap;
      transition: color 0.2s ease;
    }

    .nav-link::after {
      content: "";
      position: absolute;
      right: 13px;
      bottom: 14px;
      left: 13px;
      height: 2px;
      background: var(--primary);
      transform: scaleX(0);
      transition: transform 0.2s ease;
    }

    .nav-link.has-arrow {
      padding-right: 25px;
    }

    .nav-link.has-arrow::before {
      content: "";
      position: absolute;
      top: 50%;
      right: 11px;
      width: 6px;
      height: 6px;
      margin-top: -5px;
      border-right: 1.5px solid currentColor;
      border-bottom: 1.5px solid currentColor;
      transform: 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: rotate(225deg);
      margin-top: -1px;
    }

    .dropdown-panel,
    .mega-menu {
      position: absolute;
      top: 100%;
      z-index: 60;
      visibility: hidden;
      opacity: 0;
      pointer-events: none;
      transform: translateY(8px);
      transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
    }

    .dropdown-panel {
      width: 330px;
      margin-left: -70px;
      padding: 18px;
      background: var(--surface);
      border: 1px solid var(--line);
      border-top: 3px solid var(--primary);
      box-shadow: var(--shadow);
    }

    .mega-menu {
      right: 0;
      left: 0;
      padding-top: 0;
      background: var(--surface);
      border-top: 1px solid var(--line);
      box-shadow: 0 22px 40px rgba(16, 33, 58, 0.14);
    }

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

    .dropdown-title {
      margin: 0 0 10px;
      color: var(--primary-dark);
      font-size: 14px;
      font-weight: 800;
    }

    .news-link {
      display: block;
      padding: 9px 0;
      overflow: hidden;
      color: #334155;
      border-bottom: 1px solid #EDF1F5;
      text-overflow: ellipsis;
      white-space: nowrap;
    }

    .news-link:hover {
      color: var(--primary);
    }

    .dropdown-footer,
    .mega-footer {
      color: var(--primary);
      font-weight: 800;
    }

    .dropdown-footer {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin: 13px -4px -4px;
      padding: 10px 12px;
      background: var(--primary-light);
    }

    .mega-layout {
      width: min(calc(100% - 40px), var(--container));
      margin-inline: auto;
      padding: 25px 0 28px;
      display: grid;
      grid-template-columns: 235px minmax(0, 1fr);
      gap: 30px;
    }

    .mega-side {
      padding-right: 26px;
      border-right: 1px solid var(--line);
    }

    .mega-side h3 {
      margin: 0 0 7px;
      color: var(--primary-dark);
      font-size: 18px;
    }

    .mega-side p {
      margin: 0 0 16px;
      color: var(--muted);
      font-size: 13px;
    }

    .mega-categories {
      display: flex;
      flex-wrap: wrap;
      gap: 7px;
    }

    .mega-categories a {
      padding: 6px 9px;
      color: #334155;
      background: var(--surface-soft);
      border: 1px solid var(--line);
      font-size: 12px;
      font-weight: 700;
    }

    .mega-categories a:hover {
      color: var(--primary);
      border-color: #AFC4E7;
    }

    .mega-content {
      min-width: 0;
    }

    .mega-head {
      margin-bottom: 14px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
    }

    .mega-head strong {
      font-size: 16px;
    }

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

    .mega-card {
      min-width: 0;
      min-height: 82px;
      padding: 12px;
      display: grid;
      grid-template-columns: 48px minmax(0, 1fr);
      align-content: start;
      gap: 3px 11px;
      background: var(--surface-soft);
      border: 1px solid transparent;
      transition: border-color 0.2s ease, background 0.2s ease;
    }

    .mega-card:hover {
      background: #FFFFFF;
      border-color: #B7C9E4;
    }

    .mega-card img {
      width: 48px;
      height: 48px;
      grid-row: 1 / span 3;
      object-fit: contain;
      background: #FFFFFF;
      border: 1px solid #E7EBF0;
    }

    .mega-card strong {
      min-width: 0;
      overflow: hidden;
      color: #203047;
      font-size: 13px;
      text-overflow: ellipsis;
      white-space: nowrap;
    }

    .mega-card p {
      margin: 0;
      display: -webkit-box;
      overflow: hidden;
      color: var(--muted);
      font-size: 12px;
      line-height: 1.45;
      -webkit-box-orient: vertical;
      -webkit-line-clamp: 2;
    }

    .mega-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 3px 8px;
      color: var(--muted);
      font-size: 11px;
    }

    .video-card img,
    .product-card img {
      object-fit: cover;
    }

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

    .header-btns > a,
    .header-btns > button,
    .open-account {
      min-height: 40px;
    }

    .open-account {
      padding: 8px 17px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      color: #FFFFFF;
      background: var(--primary);
      font-weight: 800;
      transition: background 0.2s ease;
    }

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

    .hamburger {
      width: 42px;
      height: 42px;
      padding: 0;
      display: none;
      align-items: center;
      justify-content: center;
      flex-direction: column;
      gap: 5px;
      background: #FFFFFF;
      border: 1px solid var(--line);
      cursor: pointer;
    }

    .hamburger span {
      width: 19px;
      height: 2px;
      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: 90;
      visibility: hidden;
      opacity: 0;
      background: rgba(7, 18, 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(88vw, 390px);
      overflow-y: auto;
      background: #FFFFFF;
      box-shadow: -20px 0 45px rgba(8, 28, 58, 0.2);
      transform: translateX(105%);
      transition: transform 0.25s ease;
    }

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

    .drawer-head {
      min-height: 72px;
      padding: 13px 17px;
      display: flex;
      align-items: center;
      gap: 10px;
      color: #FFFFFF;
      background: var(--primary-dark);
    }

    .drawer-head > a {
      padding: 7px 11px;
      border: 1px solid rgba(255, 255, 255, 0.32);
      font-weight: 700;
    }

    .drawer-close {
      width: 40px;
      height: 40px;
      margin-left: auto;
      padding: 0;
      color: #FFFFFF;
      background: transparent;
      border: 0;
      font-size: 30px;
      line-height: 1;
      cursor: pointer;
    }

    .drawer-menu {
      padding: 12px 17px 30px;
    }

    .drawer-link,
    .drawer-toggle {
      width: 100%;
      min-height: 48px;
      padding: 11px 4px;
      display: flex;
      align-items: center;
      color: #1E2F46;
      background: transparent;
      border: 0;
      border-bottom: 1px solid var(--line);
      font-weight: 800;
      text-align: left;
    }

    .drawer-toggle {
      position: relative;
      cursor: pointer;
    }

    .drawer-toggle::after {
      content: "+";
      position: absolute;
      right: 5px;
      color: var(--primary);
      font-size: 21px;
      font-weight: 500;
    }

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

    .drawer-submenu {
      max-height: 0;
      padding: 0 10px;
      overflow: hidden;
      background: var(--surface-soft);
      transition: max-height 0.3s ease, padding 0.3s ease;
    }

    .drawer-submenu.open {
      max-height: 900px;
      padding-top: 7px;
      padding-bottom: 7px;
    }

    .drawer-submenu a {
      padding: 8px 5px;
      display: block;
      color: #526177;
      border-bottom: 1px solid #E5EAF0;
      font-size: 14px;
    }

    .productlist-main {
      min-width: 0;
      background: #F5F7FA;
    }

    .productlist-main .page-banner {
      position: relative;
      overflow: hidden;
      color: #FFFFFF;
      background:
        linear-gradient(120deg, rgba(7, 43, 104, 0.98), rgba(11, 61, 145, 0.92)),
        #0B3D91;
      border-bottom: 1px solid #274F8D;
    }

    .productlist-main .page-banner::before {
      content: "";
      position: absolute;
      inset: 0;
      opacity: 0.15;
      background-image:
        linear-gradient(rgba(255, 255, 255, 0.18) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.18) 1px, transparent 1px);
      background-size: 48px 48px;
    }

    .productlist-main .banner-inner {
      position: relative;
      min-height: 260px;
      padding: 48px 0 52px;
      display: flex;
      align-items: center;
      justify-content: center;
      text-align: center;
    }

    .productlist-main .banner-copy {
      width: min(760px, 100%);
    }

    .productlist-main .breadcrumb {
      margin-bottom: 17px;
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 8px;
      color: #D4E0F3;
      font-size: 13px;
    }

    .productlist-main .breadcrumb a:hover {
      color: #FFFFFF;
    }

    .productlist-main .page-banner h1 {
      margin: 0;
      font-size: clamp(32px, 5vw, 50px);
      line-height: 1.18;
      letter-spacing: 0;
    }

    .productlist-main .page-banner p {
      max-width: 680px;
      margin: 15px auto 0;
      color: #DFE9F8;
      font-size: 16px;
    }

    .productlist-main .catalog-section {
      padding: 38px 0 76px;
    }

    .productlist-main .category-panel {
      margin-bottom: 28px;
      padding: 20px;
      display: grid;
      grid-template-columns: auto minmax(0, 1fr);
      align-items: center;
      gap: 20px;
      background: #FFFFFF;
      border: 1px solid var(--line);
      box-shadow: 0 8px 24px rgba(16, 33, 58, 0.05);
    }

    .productlist-main .category-panel h2 {
      margin: 0;
      padding-right: 20px;
      color: var(--primary-dark);
      border-right: 1px solid var(--line);
      font-size: 17px;
      white-space: nowrap;
    }

    .productlist-main .category-list {
      min-width: 0;
      display: flex;
      flex-wrap: wrap;
      gap: 9px;
    }

    .productlist-main .category-chip {
      min-height: 38px;
      padding: 7px 14px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      color: #35465E;
      background: #F7F9FC;
      border: 1px solid #DDE4ED;
      font-weight: 700;
      transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
    }

    .productlist-main .category-chip:hover {
      color: #FFFFFF;
      background: var(--primary);
      border-color: var(--primary);
    }

    .productlist-main .section-head {
      margin-bottom: 22px;
      padding-bottom: 15px;
      display: flex;
      align-items: end;
      justify-content: space-between;
      gap: 24px;
      border-bottom: 1px solid var(--line);
    }

    .productlist-main .section-head h2 {
      margin: 0;
      color: #14263F;
      font-size: 27px;
      line-height: 1.25;
    }

    .productlist-main .section-head p {
      margin: 5px 0 0;
      color: var(--muted);
    }

    .productlist-main .result-note {
      color: #536176;
      font-size: 13px;
      white-space: nowrap;
    }

    .productlist-main .product-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 20px;
    }

    .productlist-main .product-item {
      min-width: 0;
      overflow: hidden;
      display: flex;
      flex-direction: column;
      background: #FFFFFF;
      border: 1px solid var(--line);
      border-top: 3px solid #B7C3D2;
      box-shadow: 0 8px 22px rgba(16, 33, 58, 0.05);
      transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
    }

    .productlist-main .product-item:hover {
      border-top-color: var(--primary);
      box-shadow: var(--shadow);
      transform: translateY(-3px);
    }

    .productlist-main .product-image {
      position: relative;
      aspect-ratio: 16 / 10;
      overflow: hidden;
      background: #E9EEF5;
      border-bottom: 1px solid var(--line);
    }

    .productlist-main .product-image img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.35s ease;
    }

    .productlist-main .product-item:hover .product-image img {
      transform: scale(1.035);
    }

    .productlist-main .product-badge {
      position: absolute;
      top: 13px;
      left: 13px;
      padding: 5px 9px;
      color: #FFFFFF;
      background: rgba(7, 43, 104, 0.94);
      border: 1px solid rgba(255, 255, 255, 0.35);
      font-size: 12px;
      font-weight: 800;
    }

    .productlist-main .product-body {
      min-width: 0;
      padding: 20px;
      display: flex;
      flex: 1;
      flex-direction: column;
    }

    .productlist-main .product-body h3 {
      margin: 0 0 10px;
      color: #162942;
      font-size: 19px;
      line-height: 1.4;
    }

    .productlist-main .product-body h3 a {
      transition: color 0.2s ease;
    }

    .productlist-main .product-body h3 a:hover {
      color: var(--primary);
    }

    .productlist-main .product-summary {
      margin: 0;
      display: -webkit-box;
      overflow: hidden;
      color: #5C6A7D;
      line-height: 1.75;
      -webkit-box-orient: vertical;
      -webkit-line-clamp: 3;
    }

    .productlist-main .product-meta {
      margin-top: auto;
      padding-top: 17px;
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      gap: 8px 14px;
      color: #778397;
      border-top: 1px solid #E7EBF0;
      font-size: 12px;
    }

    .productlist-main .product-price {
      color: var(--gold);
      font-weight: 800;
    }

    .productlist-main .product-action {
      margin-top: 15px;
      display: inline-flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      color: var(--primary);
      font-weight: 800;
    }

    .productlist-main .product-action span:last-child {
      transition: transform 0.2s ease;
    }

    .productlist-main .product-action:hover span:last-child {
      transform: translateX(4px);
    }

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

    .productlist-main .pagination a {
      min-width: 42px;
      min-height: 42px;
      padding: 7px 12px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      color: #34445A;
      background: #FFFFFF;
      border: 1px solid var(--line);
      font-weight: 700;
      transition: color 0.2s ease, background 0.2s ease, border-color 0.2s ease;
    }

    .productlist-main .pagination a:hover,
    .productlist-main .pagination a.active,
    .productlist-main .pagination a.current {
      color: #FFFFFF;
      background: var(--primary);
      border-color: var(--primary);
    }

    .productlist-main .catalog-note {
      margin-top: 34px;
      padding: 20px 22px;
      display: grid;
      grid-template-columns: auto minmax(0, 1fr);
      gap: 15px;
      color: #536176;
      background: #EDF2F8;
      border-left: 4px solid var(--primary);
    }

    .productlist-main .catalog-note strong {
      color: var(--primary-dark);
      white-space: nowrap;
    }

    .productlist-main .catalog-note p {
      margin: 0;
    }

    .footer {
      color: #C8D3E3;
      background: #09172B;
      border-top: 4px solid var(--primary);
    }

    .footer-main {
      padding: 52px 0 40px;
      display: grid;
      grid-template-columns: 1.35fr 0.8fr 0.8fr 1fr;
      gap: 40px;
    }

    .footer .logo {
      color: #FFFFFF;
    }

    .footer-brand p {
      max-width: 430px;
      margin: 17px 0 15px;
      color: #AEBBCE;
      font-size: 14px;
    }

    .footer-social {
      min-height: 28px;
    }

    .footer h3 {
      margin: 5px 0 16px;
      color: #FFFFFF;
      font-size: 15px;
    }

    .footer-links,
    .footer-contact {
      display: flex;
      flex-direction: column;
      gap: 9px;
      font-size: 14px;
    }

    .footer-links a,
    .footer-contact a {
      transition: color 0.2s ease;
    }

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

    .footer-bottom {
      min-height: 62px;
      padding: 16px 0;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
      color: #96A6BC;
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      font-size: 13px;
    }

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

      .hamburger {
        display: flex;
      }

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

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

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

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

    @media (max-width: 720px) {
      .container {
        width: min(calc(100% - 28px), var(--container));
      }

      .topbar-inner {
        padding: 7px 0;
        align-items: flex-start;
        flex-direction: column;
        gap: 2px;
      }

      .topbar-contact {
        width: 100%;
        flex-wrap: wrap;
        gap: 2px 15px;
      }

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

      .logo {
        min-width: 0;
        max-width: 54%;
        font-size: 16px;
      }

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

      .header-btns {
        gap: 7px;
      }

      .header-btns > :not(.open-account):not(.hamburger) {
        display: none;
      }

      .open-account {
        min-height: 38px;
        padding: 7px 11px;
        font-size: 13px;
      }

      .hamburger {
        width: 40px;
        height: 40px;
      }

      .productlist-main .banner-inner {
        min-height: 225px;
        padding: 36px 0 40px;
      }

      .productlist-main .page-banner h1 {
        font-size: 34px;
      }

      .productlist-main .page-banner p {
        font-size: 14px;
      }

      .productlist-main .catalog-section {
        padding: 27px 0 54px;
      }

      .productlist-main .category-panel {
        padding: 16px;
        grid-template-columns: 1fr;
        gap: 13px;
      }

      .productlist-main .category-panel h2 {
        padding: 0 0 10px;
        border-right: 0;
        border-bottom: 1px solid var(--line);
      }

      .productlist-main .category-chip {
        flex: 1 1 125px;
      }

      .productlist-main .section-head {
        align-items: flex-start;
        flex-direction: column;
        gap: 7px;
      }

      .productlist-main .section-head h2 {
        font-size: 23px;
      }

      .productlist-main .product-grid {
        grid-template-columns: 1fr;
      }

      .productlist-main .product-body {
        padding: 17px;
      }

      .productlist-main .catalog-note {
        grid-template-columns: 1fr;
        gap: 4px;
      }

      .footer-main {
        padding: 40px 0 30px;
        grid-template-columns: 1fr;
        gap: 27px;
      }

      .footer-bottom {
        align-items: flex-start;
        flex-direction: column;
        justify-content: center;
        gap: 3px;
      }
    }

    @media (max-width: 420px) {
      .logo span {
        max-width: 130px;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
      }

      .open-account {
        display: none;
      }

      .productlist-main .page-banner h1 {
        font-size: 29px;
      }

      .productlist-main .category-chip {
        flex-basis: 100%;
      }
    }