:root {
      --theme: #0B3D91;
      --theme-dark: #082d6b;
      --ink: #182536;
      --muted: #64748b;
      --line: #dce3ec;
      --paper: #f6f8fb;
      --white: #ffffff;
      --accent: #c73535;
      --accent-light: #fff1f0;
      --shadow: 0 14px 36px rgba(22, 45, 76, .09);
      --radius: 8px;
      --container: 1180px;
    }

    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      color: var(--ink);
      background: var(--paper);
      font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", Arial, sans-serif;
      line-height: 1.65;
    }
    a { color: inherit; text-decoration: none; }
    img { max-width: 100%; display: block; }
    button { font: inherit; }
    .container { width: min(var(--container), calc(100% - 40px)); margin: 0 auto; }

    .topbar {
      color: #d8e4f5;
      background: #0c1e35;
      font-size: 13px;
    }
    .topbar-inner {
      min-height: 36px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
    }
    .topbar-contact {
      display: flex;
      align-items: center;
      gap: 22px;
    }
    .topbar a { color: #d8e4f5; }
    .topbar a:hover { color: #fff; }

    .header {
      position: relative;
      z-index: 20;
      background: var(--white);
      border-bottom: 1px solid var(--line);
    }
    .header-inner {
      min-height: 78px;
      display: flex;
      align-items: center;
      gap: 28px;
    }
    .logo {
      display: inline-flex;
      align-items: center;
      gap: 11px;
      flex: 0 0 auto;
      color: var(--theme);
      font-size: 19px;
      font-weight: 800;
      white-space: nowrap;
    }
    .logo img {
      width: 38px;
      height: 38px;
      object-fit: contain;
    }
    .main-nav { margin-left: auto; }
    .nav-list {
      display: flex;
      align-items: stretch;
      gap: 3px;
      margin: 0;
      padding: 0;
      list-style: none;
    }
    .nav-item { position: relative; }
    .nav-link {
      display: inline-flex;
      align-items: center;
      min-height: 78px;
      padding: 0 15px;
      color: #29384a;
      font-size: 15px;
      font-weight: 600;
      white-space: nowrap;
    }
    .nav-link:hover,
    .nav-link:focus-visible { color: var(--theme); }
    .has-arrow::after {
      content: "";
      width: 6px;
      height: 6px;
      margin: -3px 0 0 8px;
      border-right: 1.5px solid currentColor;
      border-bottom: 1.5px solid currentColor;
      transform: rotate(45deg);
    }
    .dropdown-panel,
    .mega-menu {
      position: absolute;
      top: calc(100% - 1px);
      left: 50%;
      visibility: hidden;
      opacity: 0;
      transform: translate(-50%, 8px);
      transition: opacity .2s ease, transform .2s ease, visibility .2s ease;
      background: #fff;
      border: 1px solid var(--line);
      box-shadow: 0 18px 40px rgba(13, 33, 57, .15);
    }
    .dropdown-panel {
      width: 330px;
      padding: 22px;
    }
    .mega-menu {
      width: min(900px, calc(100vw - 40px));
      padding: 27px;
    }
    .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: translate(-50%, 0);
    }
    .dropdown-panel::before,
    .mega-menu::before {
      content: "";
      position: absolute;
      left: 0;
      right: 0;
      height: 12px;
      top: -12px;
    }
    .panel-title {
      margin: 0 0 14px;
      font-size: 17px;
      color: var(--theme);
    }
    .dropdown-list,
    .mega-list {
      display: grid;
      gap: 9px;
    }
    .dropdown-list a,
    .mega-list > a {
      display: block;
      padding: 8px 0;
      color: #34455a;
      font-size: 14px;
      border-bottom: 1px solid #edf1f5;
    }
    .dropdown-list a:hover,
    .mega-list > a:hover { color: var(--theme); }
    .mega-meta {
      display: block;
      margin-top: 2px;
      color: #8995a4;
      font-size: 11px;
      font-weight: 400;
    }
    .mega-columns {
      display: grid;
      grid-template-columns: 1.1fr 1fr .9fr;
      gap: 30px;
    }
    .mega-section {
      min-width: 0;
    }
    .mega-section + .mega-section {
      border-left: 1px solid var(--line);
      padding-left: 28px;
    }
    .mega-section h3 {
      margin: 0 0 13px;
      color: var(--theme);
      font-size: 14px;
    }
    .mega-section p {
      margin: 0 0 20px;
      color: var(--muted);
      font-size: 13px;
    }
    .broker-mega-card,
    .video-mega-card,
    .product-mega-card {
      display: flex !important;
      align-items: center;
      gap: 10px;
    }
    .broker-mega-card img,
    .video-mega-card img,
    .product-mega-card img {
      width: 34px;
      height: 34px;
      object-fit: cover;
      border-radius: 4px;
      flex: 0 0 34px;
    }
    .mega-footer {
      display: inline-block;
      color: var(--accent) !important;
      font-size: 13px;
      font-weight: 700;
      border: 0 !important;
    }
    .header-btns {
      display: flex;
      align-items: center;
      gap: 10px;
      flex: 0 0 auto;
    }
    .member-link,
    .account-link {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 38px;
      padding: 0 14px;
      border-radius: 4px;
      font-size: 13px;
      font-weight: 700;
      white-space: nowrap;
    }
    .member-link {
      color: var(--theme);
      border: 1px solid #b8c9e3;
    }
    .account-link {
      color: #fff;
      background: var(--theme);
    }
    .member-link:hover { background: #f0f5fc; }
    .account-link:hover { background: var(--theme-dark); }

    .hamburger {
      display: none;
      width: 42px;
      height: 40px;
      padding: 9px;
      border: 1px solid var(--line);
      border-radius: 4px;
      background: #fff;
      cursor: pointer;
    }
    .hamburger span {
      display: block;
      width: 22px;
      height: 2px;
      margin: 4px auto;
      background: var(--ink);
      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: 50;
      inset: 0;
      visibility: hidden;
      opacity: 0;
      background: rgba(9, 22, 39, .48);
      transition: opacity .25s ease, visibility .25s ease;
    }
    .drawer-overlay.open { visibility: visible; opacity: 1; }
    .mobile-drawer {
      position: fixed;
      z-index: 60;
      top: 0;
      right: 0;
      bottom: 0;
      width: min(380px, 88vw);
      overflow-y: auto;
      background: #fff;
      box-shadow: -15px 0 40px rgba(10, 28, 49, .18);
      transform: translateX(100%);
      transition: transform .25s ease;
    }
    .mobile-drawer.open { transform: translateX(0); }
    .drawer-head {
      min-height: 72px;
      display: flex;
      align-items: center;
      gap: 14px;
      padding: 16px 22px;
      color: var(--theme);
      border-bottom: 1px solid var(--line);
      font-weight: 700;
    }
    .drawer-head > :first-child { margin-right: auto; }
    .drawer-head a {
      padding: 5px 10px;
      color: #fff;
      background: var(--theme);
      border-radius: 3px;
      font-size: 13px;
    }
    .drawer-close {
      width: 32px;
      height: 32px;
      padding: 0;
      color: var(--ink);
      background: transparent;
      border: 0;
      cursor: pointer;
      font-size: 25px;
      line-height: 1;
    }
    .drawer-menu { padding: 12px 22px 30px; }
    .drawer-link,
    .drawer-toggle {
      width: 100%;
      display: flex;
      align-items: center;
      justify-content: space-between;
      min-height: 48px;
      padding: 0;
      color: #26384e;
      background: transparent;
      border: 0;
      border-bottom: 1px solid #edf1f5;
      font-size: 15px;
      text-align: left;
      cursor: pointer;
    }
    .drawer-toggle::after {
      content: "+";
      color: var(--theme);
      font-size: 20px;
      font-weight: 300;
    }
    .drawer-toggle.active::after { content: "−"; }
    .drawer-submenu {
      display: grid;
      gap: 0;
      max-height: 0;
      overflow: hidden;
      padding-left: 14px;
      opacity: 0;
      transition: max-height .25s ease, opacity .2s ease;
    }
    .drawer-submenu.open {
      max-height: 500px;
      opacity: 1;
    }
    .drawer-submenu a {
      display: block;
      padding: 9px 0;
      color: var(--muted);
      border-bottom: 1px solid #f1f3f6;
      font-size: 14px;
    }

    .category-page {
      min-height: 600px;
      padding: 54px 0 76px;
    }
    .category-heading {
      display: flex;
      align-items: end;
      justify-content: space-between;
      gap: 30px;
      margin-bottom: 32px;
      padding-bottom: 25px;
      border-bottom: 1px solid var(--line);
    }
    .heading-kicker {
      display: inline-flex;
      align-items: center;
      gap: 9px;
      margin-bottom: 8px;
      color: var(--accent);
      font-size: 12px;
      font-weight: 800;
      letter-spacing: 1.5px;
    }
    .heading-kicker::before {
      content: "";
      width: 22px;
      height: 2px;
      background: var(--accent);
    }
    .category-heading h1 {
      margin: 0;
      color: #132842;
      font-family: Georgia, "Songti SC", "SimSun", serif;
      font-size: clamp(30px, 4vw, 46px);
      line-height: 1.2;
    }
    .category-heading p {
      max-width: 460px;
      margin: 8px 0 0;
      color: var(--muted);
      font-size: 14px;
    }
    .heading-note {
      flex: 0 0 auto;
      padding: 13px 17px;
      color: var(--theme);
      background: #eaf1fb;
      border-left: 3px solid var(--theme);
      font-size: 13px;
      font-weight: 700;
    }
    .article-list {
      display: grid;
      gap: 18px;
    }
    .article-card {
      display: grid;
      grid-template-columns: 300px minmax(0, 1fr);
      min-width: 0;
      overflow: hidden;
      background: var(--white);
      border: 1px solid var(--line);
      border-radius: var(--radius);
      box-shadow: 0 5px 17px rgba(31, 57, 89, .04);
      transition: box-shadow .2s ease, transform .2s ease;
    }
    .article-card:hover {
      transform: translateY(-2px);
      box-shadow: var(--shadow);
    }
    .article-cover {
      min-height: 210px;
      background: #dce6f2;
      overflow: hidden;
    }
    .article-cover img {
      width: 100%;
      height: 100%;
      min-height: 210px;
      object-fit: cover;
    }
    .article-body {
      min-width: 0;
      padding: 23px 27px 20px;
    }
    .article-category {
      display: inline-block;
      margin-bottom: 8px;
      padding: 3px 9px;
      color: var(--accent);
      background: var(--accent-light);
      border-radius: 3px;
      font-size: 12px;
      font-weight: 700;
    }
    .article-body h2 {
      margin: 0 0 9px;
      color: #1b3554;
      font-family: Georgia, "Songti SC", "SimSun", serif;
      font-size: 22px;
      line-height: 1.4;
    }
    .article-body h2 a:hover { color: var(--theme); }
    .article-summary {
      display: block;
      min-height: 48px;
      margin: 0 0 14px;
      color: #66778a;
      font-size: 14px;
      line-height: 1.75;
    }
    .article-meta {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 8px 17px;
      padding-top: 13px;
      color: #8491a0;
      border-top: 1px solid #edf1f5;
      font-size: 12px;
    }
    .article-meta strong {
      color: #52677f;
      font-weight: 600;
    }
    .article-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
      margin-top: 10px;
      color: #718096;
      font-size: 12px;
    }
    .article-tags::before {
      content: "标签：";
      color: #9aa5b1;
    }
    .article-read {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      margin-top: 14px;
      color: var(--theme);
      font-size: 13px;
      font-weight: 800;
    }
    .article-read::after { content: "→"; font-size: 17px; }
    .article-read:hover { color: var(--accent); }
    .pagination {
      display: flex;
      justify-content: center;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 38px;
    }
    .pagination a {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-width: 38px;
      height: 38px;
      padding: 0 12px;
      color: #52677f;
      background: #fff;
      border: 1px solid var(--line);
      border-radius: 4px;
      font-size: 13px;
    }
    .pagination a:hover,
    .pagination a.active {
      color: #fff;
      background: var(--theme);
      border-color: var(--theme);
    }

    .footer {
      color: #d4deeb;
      background: #101f33;
    }
    .footer-main {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1.1fr;
      gap: 45px;
      padding-top: 48px;
      padding-bottom: 42px;
    }
    .footer h2,
    .footer h3 { margin: 0 0 15px; color: #fff; }
    .footer h2 { font-family: Georgia, "Songti SC", "SimSun", serif; font-size: 22px; }
    .footer h3 { font-size: 14px; }
    .footer p {
      max-width: 300px;
      margin: 0;
      color: #9cafc5;
      font-size: 13px;
      line-height: 1.8;
    }
    .footer-links {
      display: grid;
      gap: 8px;
      margin: 0;
      padding: 0;
      list-style: none;
      color: #a9b9cc;
      font-size: 13px;
    }
    .footer-links a:hover { color: #fff; }
    .footer-bottom {
      display: flex;
      justify-content: space-between;
      gap: 20px;
      padding-top: 17px;
      padding-bottom: 20px;
      color: #8498b0;
      border-top: 1px solid rgba(210, 225, 242, .14);
      font-size: 12px;
    }

    @media (max-width: 1020px) {
      .main-nav { display: none; }
      .hamburger { display: block; }
      .footer-main { grid-template-columns: 1.3fr 1fr 1fr; }
      .footer-main section:last-child { grid-column: 1 / -1; }
    }
    @media (max-width: 700px) {
      .container { width: min(var(--container), calc(100% - 28px)); }
      .topbar-inner { min-height: 48px; align-items: flex-start; flex-direction: column; justify-content: center; gap: 0; }
      .topbar-contact { display: none; }
      .header-inner { min-height: 68px; gap: 10px; }
      .logo { font-size: 16px; }
      .logo img { width: 32px; height: 32px; }
      .member-link { display: none; }
      .account-link { min-height: 34px; padding: 0 10px; }
      .category-page { padding: 35px 0 55px; }
      .category-heading { display: block; margin-bottom: 23px; padding-bottom: 20px; }
      .heading-note { display: inline-block; margin-top: 16px; }
      .article-card { display: block; }
      .article-cover,
      .article-cover img { min-height: 190px; height: 190px; }
      .article-body { padding: 19px 18px 18px; }
      .article-body h2 { font-size: 19px; }
      .article-summary { min-height: 0; }
      .footer-main { grid-template-columns: 1fr 1fr; gap: 30px 20px; padding-top: 35px; padding-bottom: 32px; }
      .footer-main section:first-child { grid-column: 1 / -1; }
      .footer-main section:last-child { grid-column: auto; }
      .footer-bottom { display: block; }
      .footer-bottom span { display: block; margin-top: 6px; }
    }