:root {
      --theme: #0B3D91;
      --theme-dark: #072b68;
      --theme-soft: #eaf1fc;
      --ink: #142033;
      --muted: #64748b;
      --line: #dce4ef;
      --surface: #ffffff;
      --surface-soft: #f4f7fb;
      --success: #137a53;
      --warning: #a16207;
      --shadow: 0 18px 48px rgba(15, 35, 68, .10);
      --radius: 18px;
      --container: 1180px;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      color: var(--ink);
      background: #f7f9fc;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang HK",
        "Noto Sans TC", "Microsoft JhengHei", sans-serif;
      line-height: 1.65;
    }

    body,
    button,
    input,
    textarea,
    select {
      font: inherit;
    }

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

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

    button {
      color: inherit;
    }

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

    .topbar {
      color: #dbe8ff;
      background: #071d42;
      font-size: 13px;
    }

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

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

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

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

    .header {
      position: relative;
      z-index: 50;
      background: rgba(255, 255, 255, .98);
      border-bottom: 1px solid var(--line);
      box-shadow: 0 5px 18px rgba(15, 35, 68, .04);
    }

    .header-inner {
      min-height: 78px;
      display: flex;
      align-items: center;
      gap: 24px;
    }

    .logo {
      min-width: 190px;
      display: inline-flex;
      align-items: center;
      gap: 11px;
      color: var(--theme);
      font-weight: 800;
      letter-spacing: -.02em;
    }

    .logo img {
      width: 42px;
      height: 42px;
      object-fit: contain;
      border-radius: 10px;
    }

    .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: stretch;
    }

    .nav-link {
      position: relative;
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 0 14px;
      color: #26364f;
      font-size: 15px;
      font-weight: 700;
      white-space: nowrap;
      transition: color .2s ease;
    }

    .nav-link::after {
      position: absolute;
      right: 14px;
      bottom: 15px;
      left: 14px;
      height: 2px;
      content: "";
      background: var(--theme);
      transform: scaleX(0);
      transform-origin: center;
      transition: transform .2s ease;
    }

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

    .nav-link.has-arrow::before {
      position: absolute;
      top: 50%;
      right: 11px;
      width: 6px;
      height: 6px;
      content: "";
      border-right: 1.5px solid currentColor;
      border-bottom: 1.5px solid currentColor;
      transform: translateY(-65%) rotate(45deg);
    }

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

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

    .dropdown-panel,
    .mega-menu {
      position: absolute;
      top: 100%;
      z-index: 70;
      visibility: hidden;
      overflow: hidden;
      padding: 20px;
      background: #ffffff;
      border: 1px solid var(--line);
      border-radius: 0 0 16px 16px;
      box-shadow: var(--shadow);
      opacity: 0;
      transform: translateY(8px);
      pointer-events: none;
      transition: opacity .2s ease, transform .2s ease, visibility .2s ease;
    }

    .dropdown-panel::before,
    .mega-menu::before {
      position: absolute;
      right: 0;
      bottom: 100%;
      left: 0;
      height: 10px;
      content: "";
    }

    .dropdown-panel {
      left: 0;
      width: 330px;
    }

    .mega-menu {
      left: 50%;
      width: min(760px, calc(100vw - 40px));
      transform: translate(-50%, 8px);
    }

    .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;
    }

    .nav-item:hover > .dropdown-panel,
    .nav-item:focus-within > .dropdown-panel {
      transform: translateY(0);
    }

    .nav-item:hover > .mega-menu,
    .nav-item:focus-within > .mega-menu {
      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);
    }

    .panel-title,
    .mega-block h3 {
      margin: 0 0 12px;
      color: #142033;
      font-size: 15px;
    }

    .panel-list {
      display: grid;
      gap: 5px;
    }

    .panel-list a {
      padding: 9px 10px;
      color: #4a5b73;
      background: #f6f8fb;
      border-radius: 8px;
      font-size: 14px;
      transition: color .2s ease, background .2s ease;
    }

    .panel-list a:hover {
      color: var(--theme);
      background: var(--theme-soft);
    }

    .mega-grid {
      display: grid;
      grid-template-columns: 1.2fr .8fr;
      gap: 28px;
    }

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

    .mega-block p {
      margin: 0 0 10px;
      color: var(--muted);
      font-size: 14px;
    }

    .broker-mini,
    .video-mini,
    .tool-mini,
    .product-mini {
      min-width: 0;
      display: flex;
      align-items: center;
      gap: 11px;
      margin-bottom: 8px;
      padding: 8px;
      border-radius: 10px;
      transition: background .2s ease;
    }

    .broker-mini:hover,
    .video-mini:hover,
    .tool-mini:hover,
    .product-mini:hover {
      background: var(--surface-soft);
    }

    .broker-mini img,
    .tool-mini img {
      width: 42px;
      height: 42px;
      flex: 0 0 42px;
      object-fit: contain;
      background: #ffffff;
      border: 1px solid var(--line);
      border-radius: 9px;
    }

    .video-mini img,
    .product-mini img {
      width: 64px;
      height: 44px;
      flex: 0 0 64px;
      object-fit: cover;
      border-radius: 8px;
    }

    .broker-mini span,
    .video-mini span,
    .tool-mini span,
    .product-mini span {
      min-width: 0;
      display: grid;
    }

    .broker-mini strong,
    .video-mini strong,
    .tool-mini strong,
    .product-mini strong {
      overflow: hidden;
      color: #20314b;
      font-size: 13px;
      text-overflow: ellipsis;
      white-space: nowrap;
    }

    .broker-mini small,
    .video-mini small,
    .tool-mini small,
    .product-mini small {
      overflow: hidden;
      color: var(--muted);
      font-size: 12px;
      text-overflow: ellipsis;
      white-space: nowrap;
    }

    .mega-footer {
      display: inline-flex;
      margin-top: 12px;
      color: var(--theme);
      font-size: 14px;
      font-weight: 800;
    }

    .mega-footer:hover {
      text-decoration: underline;
    }

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

    .member-link,
    .open-account {
      min-height: 40px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 0 15px;
      border-radius: 10px;
      font-size: 14px;
      font-weight: 800;
      white-space: nowrap;
    }

    .member-link {
      color: var(--theme);
      background: var(--theme-soft);
    }

    .open-account {
      color: #ffffff;
      background: var(--theme);
      box-shadow: 0 8px 20px rgba(11, 61, 145, .22);
    }

    .member-link:hover {
      background: #dce9fb;
    }

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

    .hamburger {
      width: 42px;
      height: 42px;
      display: none;
      align-items: center;
      justify-content: center;
      flex-direction: column;
      gap: 5px;
      padding: 0;
      background: #ffffff;
      border: 1px solid var(--line);
      border-radius: 10px;
      cursor: pointer;
    }

    .hamburger span {
      width: 20px;
      height: 2px;
      display: block;
      background: var(--ink);
      transition: transform .2s ease, opacity .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;
      background: rgba(4, 13, 29, .62);
      opacity: 0;
      transition: opacity .25s ease, visibility .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(7, 29, 66, .18);
      transform: translateX(105%);
      transition: transform .28s ease;
    }

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

    .drawer-head {
      min-height: 72px;
      display: flex;
      align-items: center;
      gap: 10px;
      padding: 14px 18px;
      color: #ffffff;
      background: var(--theme);
    }

    .drawer-head > span {
      min-width: 0;
      flex: 1;
      font-weight: 800;
    }

    .drawer-head > a {
      padding: 7px 12px;
      color: var(--theme);
      background: #ffffff;
      border-radius: 8px;
      font-size: 14px;
      font-weight: 800;
    }

    .drawer-close {
      width: 38px;
      height: 38px;
      padding: 0;
      color: #ffffff;
      background: transparent;
      border: 0;
      font-size: 30px;
      line-height: 1;
      cursor: pointer;
    }

    .drawer-menu {
      padding: 14px 18px 30px;
    }

    .drawer-link,
    .drawer-toggle {
      width: 100%;
      min-height: 48px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 10px 4px;
      color: #20314b;
      background: transparent;
      border: 0;
      border-bottom: 1px solid var(--line);
      font-weight: 800;
      text-align: left;
      cursor: pointer;
    }

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

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

    .drawer-submenu {
      max-height: 0;
      display: grid;
      gap: 4px;
      overflow: hidden;
      transition: max-height .3s ease, padding .3s ease;
    }

    .drawer-submenu.open {
      max-height: 900px;
      padding: 8px 0 12px;
    }

    .drawer-submenu a {
      padding: 9px 12px;
      color: #50627c;
      background: #f5f7fa;
      border-radius: 8px;
      font-size: 14px;
    }

    .drawer-submenu a:hover {
      color: var(--theme);
      background: var(--theme-soft);
    }

    .ea-content-stack {
      min-width: 0;
      padding-bottom: 80px;
    }

    .ea-content-stack .product-hero {
      position: relative;
      overflow: hidden;
      padding: 34px 0 58px;
      color: #ffffff;
      background:
        radial-gradient(circle at 10% 10%, rgba(90, 157, 255, .34), transparent 28%),
        radial-gradient(circle at 88% 24%, rgba(255, 255, 255, .12), transparent 25%),
        linear-gradient(145deg, #071d42 0%, #0B3D91 62%, #1658bd 100%);
    }

    .ea-content-stack .product-hero::after {
      position: absolute;
      right: -110px;
      bottom: -180px;
      width: 430px;
      height: 430px;
      content: "";
      border: 1px solid rgba(255, 255, 255, .14);
      border-radius: 50%;
      box-shadow:
        0 0 0 45px rgba(255, 255, 255, .035),
        0 0 0 90px rgba(255, 255, 255, .025);
    }

    .ea-content-stack .breadcrumbs {
      position: relative;
      z-index: 1;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 8px;
      margin-bottom: 30px;
      color: #c6d9fa;
      font-size: 14px;
    }

    .ea-content-stack .breadcrumbs a:hover {
      color: #ffffff;
      text-decoration: underline;
    }

    .ea-content-stack .product-intro {
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: minmax(260px, 390px) minmax(0, 1fr);
      align-items: center;
      gap: 54px;
    }

    .ea-content-stack .product-cover {
      position: relative;
      padding: 18px;
      background: rgba(255, 255, 255, .12);
      border: 1px solid rgba(255, 255, 255, .2);
      border-radius: 24px;
      box-shadow: 0 28px 70px rgba(0, 0, 0, .22);
      backdrop-filter: blur(12px);
    }

    .ea-content-stack .product-cover img {
      width: 100%;
      aspect-ratio: 4 / 3;
      object-fit: cover;
      background: #ffffff;
      border-radius: 15px;
    }

    .ea-content-stack .product-category {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      margin-bottom: 12px;
      padding: 6px 12px;
      color: #ffffff;
      background: rgba(255, 255, 255, .14);
      border: 1px solid rgba(255, 255, 255, .23);
      border-radius: 999px;
      font-size: 13px;
      font-weight: 800;
    }

    .ea-content-stack .product-category::before {
      width: 7px;
      height: 7px;
      content: "";
      background: #8fc1ff;
      border-radius: 50%;
      box-shadow: 0 0 0 5px rgba(143, 193, 255, .15);
    }

    .ea-content-stack .product-heading {
      margin: 0;
      font-size: clamp(34px, 5vw, 58px);
      line-height: 1.12;
      letter-spacing: -.04em;
      overflow-wrap: anywhere;
    }

    .ea-content-stack .product-summary {
      max-width: 760px;
      margin: 19px 0 0;
      color: #dbe8ff;
      font-size: 18px;
    }

    .ea-content-stack .product-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 24px;
    }

    .ea-content-stack .product-meta span {
      padding: 8px 12px;
      color: #e8f1ff;
      background: rgba(5, 24, 57, .28);
      border: 1px solid rgba(255, 255, 255, .16);
      border-radius: 10px;
      font-size: 13px;
    }

    .ea-content-stack .product-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 28px;
    }

    .ea-content-stack .primary-action,
    .ea-content-stack .secondary-action {
      min-height: 48px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 0 20px;
      border-radius: 12px;
      font-weight: 800;
      transition: transform .2s ease, background .2s ease;
    }

    .ea-content-stack .primary-action {
      color: var(--theme);
      background: #ffffff;
      box-shadow: 0 12px 30px rgba(0, 0, 0, .16);
    }

    .ea-content-stack .secondary-action {
      color: #ffffff;
      background: rgba(255, 255, 255, .1);
      border: 1px solid rgba(255, 255, 255, .28);
    }

    .ea-content-stack .primary-action:hover,
    .ea-content-stack .secondary-action:hover {
      transform: translateY(-2px);
    }

    .ea-content-stack .product-layout {
      min-width: 0;
      display: grid;
      grid-template-columns: minmax(0, 1fr) 300px;
      align-items: start;
      gap: 28px;
      margin-top: 34px;
    }

    .ea-content-stack .product-main,
    .ea-content-stack .product-sidebar {
      min-width: 0;
    }

    .ea-content-stack .product-panel,
    .ea-content-stack .sidebar-card {
      min-width: 0;
      background: #ffffff;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      box-shadow: 0 12px 35px rgba(15, 35, 68, .06);
    }

    .ea-content-stack .product-panel {
      padding: clamp(22px, 4vw, 42px);
    }

    .ea-content-stack .section-kicker {
      margin: 0 0 4px;
      color: var(--theme);
      font-size: 13px;
      font-weight: 900;
      letter-spacing: .08em;
    }

    .ea-content-stack .section-title {
      margin: 0 0 22px;
      color: #142033;
      font-size: clamp(25px, 3vw, 34px);
      line-height: 1.25;
    }

    .ea-content-stack .product-body {
      min-width: 0;
      max-width: 100%;
      overflow-x: auto;
      color: #33445d;
      font-size: 16px;
    }

    .ea-content-stack .product-body > :first-child {
      margin-top: 0;
    }

    .ea-content-stack .product-body > :last-child {
      margin-bottom: 0;
    }

    .ea-content-stack .product-body h2,
    .ea-content-stack .product-body h3,
    .ea-content-stack .product-body h4 {
      color: #142033;
      line-height: 1.35;
    }

    .ea-content-stack .product-body h2 {
      margin: 34px 0 14px;
      font-size: 27px;
    }

    .ea-content-stack .product-body h3 {
      margin: 28px 0 12px;
      font-size: 22px;
    }

    .ea-content-stack .product-body p,
    .ea-content-stack .product-body ul,
    .ea-content-stack .product-body ol {
      margin: 0 0 18px;
    }

    .ea-content-stack .product-body a {
      color: var(--theme);
      text-decoration: underline;
      text-underline-offset: 3px;
    }

    .ea-content-stack .product-body img,
    .ea-content-stack .product-body video,
    .ea-content-stack .product-body iframe {
      max-width: 100%;
      height: auto;
      border-radius: 12px;
    }

    .ea-content-stack .product-body iframe {
      width: 100%;
      min-height: 420px;
      border: 0;
    }

    .ea-content-stack .product-body table {
      width: 100%;
      max-width: 100%;
      border-collapse: collapse;
    }

    .ea-content-stack .product-body th,
    .ea-content-stack .product-body td {
      padding: 12px;
      border: 1px solid var(--line);
      text-align: left;
      white-space: normal;
    }

    .ea-content-stack .product-body blockquote {
      margin: 24px 0;
      padding: 18px 22px;
      color: #294568;
      background: var(--theme-soft);
      border-left: 4px solid var(--theme);
      border-radius: 0 12px 12px 0;
    }

    .ea-content-stack .product-note {
      display: flex;
      gap: 12px;
      margin-top: 28px;
      padding: 17px 18px;
      color: #5d4b1e;
      background: #fff9e8;
      border: 1px solid #f0dfaa;
      border-radius: 12px;
      font-size: 14px;
    }

    .ea-content-stack .product-note strong {
      flex: 0 0 auto;
      color: var(--warning);
    }

    .ea-content-stack .product-sidebar {
      position: sticky;
      top: 22px;
      display: grid;
      gap: 18px;
    }

    .ea-content-stack .sidebar-card {
      padding: 22px;
    }

    .ea-content-stack .sidebar-card h2 {
      margin: 0 0 16px;
      font-size: 19px;
    }

    .ea-content-stack .detail-list {
      margin: 0;
      display: grid;
      gap: 0;
    }

    .ea-content-stack .detail-row {
      display: grid;
      gap: 4px;
      padding: 12px 0;
      border-bottom: 1px solid var(--line);
    }

    .ea-content-stack .detail-row:first-child {
      padding-top: 0;
    }

    .ea-content-stack .detail-row:last-child {
      padding-bottom: 0;
      border-bottom: 0;
    }

    .ea-content-stack .detail-row dt {
      color: var(--muted);
      font-size: 12px;
      font-weight: 800;
    }

    .ea-content-stack .detail-row dd {
      margin: 0;
      color: #233653;
      font-size: 14px;
      font-weight: 800;
      overflow-wrap: anywhere;
    }

    .ea-content-stack .sidebar-action {
      width: 100%;
      min-height: 46px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      margin-top: 18px;
      color: #ffffff;
      background: var(--theme);
      border-radius: 10px;
      font-weight: 800;
    }

    .ea-content-stack .sidebar-action:hover {
      background: var(--theme-dark);
    }

    .ea-content-stack .related-section {
      margin-top: 58px;
    }

    .ea-content-stack .related-head {
      display: flex;
      align-items: end;
      justify-content: space-between;
      gap: 20px;
      margin-bottom: 22px;
    }

    .ea-content-stack .related-head .section-title {
      margin-bottom: 0;
    }

    .ea-content-stack .related-head p {
      max-width: 520px;
      margin: 0;
      color: var(--muted);
      font-size: 14px;
      text-align: right;
    }

    .ea-content-stack .related-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 20px;
    }

    .ea-content-stack .related-card {
      min-width: 0;
      overflow: hidden;
      background: #ffffff;
      border: 1px solid var(--line);
      border-radius: 16px;
      box-shadow: 0 10px 28px rgba(15, 35, 68, .05);
      transition: transform .2s ease, box-shadow .2s ease;
    }

    .ea-content-stack .related-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 18px 40px rgba(15, 35, 68, .10);
    }

    .ea-content-stack .related-card img {
      width: 100%;
      aspect-ratio: 16 / 10;
      object-fit: cover;
      background: #eef3f9;
    }

    .ea-content-stack .related-card-body {
      min-width: 0;
      padding: 18px;
    }

    .ea-content-stack .related-card h3 {
      margin: 0 0 9px;
      color: #182b48;
      font-size: 18px;
      line-height: 1.35;
      overflow-wrap: anywhere;
    }

    .ea-content-stack .related-card p {
      min-height: 3.2em;
      margin: 0 0 14px;
      display: -webkit-box;
      overflow: hidden;
      color: var(--muted);
      font-size: 14px;
      -webkit-box-orient: vertical;
      -webkit-line-clamp: 2;
    }

    .ea-content-stack .related-meta {
      display: flex;
      justify-content: space-between;
      gap: 10px;
      color: #77869b;
      font-size: 12px;
    }

    .ea-content-stack .related-link {
      display: inline-flex;
      margin-top: 14px;
      color: var(--theme);
      font-size: 14px;
      font-weight: 900;
    }

    .footer {
      color: #c8d5e8;
      background: #07182f;
    }

    .footer-main {
      display: grid;
      grid-template-columns: 1.35fr 1fr 1fr 1fr;
      gap: 42px;
      padding-top: 58px;
      padding-bottom: 42px;
    }

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

    .footer p {
      margin: 0 0 9px;
      color: #aebed4;
      font-size: 14px;
    }

    .footer-links {
      display: grid;
      gap: 9px;
    }

    .footer-links a,
    .footer-contact a {
      color: #b9c8dc;
      font-size: 14px;
      transition: color .2s ease;
    }

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

    .footer-bottom {
      min-height: 70px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
      border-top: 1px solid rgba(255, 255, 255, .1);
      color: #8fa2bb;
      font-size: 13px;
    }

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

      .hamburger {
        display: flex;
      }

      .header-inner {
        min-height: 70px;
      }

      .logo {
        min-width: 0;
        flex: 1;
      }
    }

    @media (max-width: 900px) {
      .ea-content-stack .product-intro {
        grid-template-columns: 300px minmax(0, 1fr);
        gap: 30px;
      }

      .ea-content-stack .product-layout {
        grid-template-columns: minmax(0, 1fr);
      }

      .ea-content-stack .product-sidebar {
        position: static;
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }

      .ea-content-stack .related-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(100% - 28px, var(--container));
      }

      .topbar-inner {
        padding: 8px 0;
        align-items: flex-start;
      }

      .topbar-contact {
        align-items: flex-end;
        flex-direction: column;
        gap: 2px;
      }

      .member-link {
        display: none;
      }

      .ea-content-stack .product-hero {
        padding: 24px 0 42px;
      }

      .ea-content-stack .product-intro {
        grid-template-columns: minmax(0, 1fr);
      }

      .ea-content-stack .product-cover {
        max-width: 430px;
        width: 100%;
        margin-inline: auto;
      }

      .ea-content-stack .product-heading {
        font-size: clamp(32px, 11vw, 48px);
      }

      .ea-content-stack .product-summary {
        font-size: 16px;
      }

      .ea-content-stack .product-sidebar {
        grid-template-columns: minmax(0, 1fr);
      }

      .ea-content-stack .related-head {
        align-items: flex-start;
        flex-direction: column;
      }

      .ea-content-stack .related-head p {
        text-align: left;
      }

      .ea-content-stack .related-grid {
        grid-template-columns: minmax(0, 1fr);
      }

      .ea-content-stack .product-body iframe {
        min-height: 250px;
      }
    }

    @media (max-width: 560px) {
      .logo span {
        max-width: 150px;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
      }

      .open-account {
        display: none;
      }

      .ea-content-stack .product-actions {
        display: grid;
        grid-template-columns: minmax(0, 1fr);
      }

      .ea-content-stack .product-panel {
        padding: 20px;
      }

      .footer-main {
        grid-template-columns: minmax(0, 1fr);
        gap: 30px;
      }

      .footer-bottom {
        align-items: flex-start;
        justify-content: center;
        flex-direction: column;
        padding: 20px 0;
      }
    }