:root {
      --brand: #0B3D91;
      --brand-deep: #062861;
      --brand-soft: #eaf1fc;
      --theme-token: {主题色};
      --ink: #172033;
      --muted: #667085;
      --line: #dce4ef;
      --surface: #ffffff;
      --surface-soft: #f5f8fc;
      --success: #16836f;
      --radius-sm: 10px;
      --radius-md: 16px;
      --radius-lg: 24px;
      --shadow-sm: 0 8px 24px rgba(23, 32, 51, 0.07);
      --shadow-md: 0 18px 48px rgba(11, 61, 145, 0.12);
      --container: 1200px;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

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

    body.drawer-lock {
      overflow: hidden;
    }

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

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

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

    button,
    a {
      -webkit-tap-highlight-color: transparent;
    }

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

    .skip-link {
      position: fixed;
      top: 10px;
      left: 10px;
      z-index: 3000;
      padding: 10px 16px;
      color: #fff;
      background: var(--brand);
      border-radius: var(--radius-sm);
      transform: translateY(-150%);
      transition: transform 0.2s ease;
    }

    .skip-link:focus {
      transform: translateY(0);
    }

    .topbar {
      color: #dce8fb;
      background: var(--brand-deep);
      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: 20px;
    }

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

    .topbar-contact a:hover,
    .topbar-contact a:focus-visible {
      color: #fff;
    }

    .header {
      position: relative;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.98);
      border-bottom: 1px solid var(--line);
      box-shadow: 0 5px 18px rgba(17, 31, 55, 0.04);
    }

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

    .logo {
      min-width: 0;
      display: inline-flex;
      align-items: center;
      gap: 10px;
      color: var(--brand-deep);
      font-weight: 800;
      letter-spacing: -0.02em;
    }

    .logo img {
      width: 42px;
      height: 42px;
      flex: 0 0 42px;
      object-fit: contain;
      border-radius: 9px;
    }

    .logo span {
      max-width: 170px;
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
    }

    .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: relative;
      display: flex;
      align-items: stretch;
    }

    .nav-link {
      position: relative;
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 0 11px;
      color: #344054;
      font-size: 14px;
      font-weight: 700;
      white-space: nowrap;
      transition: color 0.2s ease;
    }

    .nav-link::after {
      position: absolute;
      right: 11px;
      bottom: 0;
      left: 11px;
      height: 3px;
      content: "";
      background: var(--brand);
      border-radius: 4px 4px 0 0;
      transform: scaleX(0);
      transition: transform 0.2s ease;
    }

    .nav-link.has-arrow {
      padding-right: 24px;
    }

    .nav-link.has-arrow::before {
      position: absolute;
      top: 50%;
      right: 10px;
      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(--brand);
    }

    .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(-30%) rotate(225deg);
    }

    .dropdown-panel,
    .mega-menu {
      position: absolute;
      top: 100%;
      left: 50%;
      z-index: 1100;
      visibility: hidden;
      opacity: 0;
      pointer-events: none;
      background: #fff;
      border: 1px solid var(--line);
      border-radius: 0 0 var(--radius-md) var(--radius-md);
      box-shadow: var(--shadow-md);
      transform: translate(-50%, 10px);
      transition: opacity 0.18s ease, transform 0.18s ease, visibility 0.18s ease;
    }

    .dropdown-panel::before,
    .mega-menu::before {
      position: absolute;
      right: 0;
      bottom: 100%;
      left: 0;
      height: 10px;
      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;
      pointer-events: auto;
      transform: translate(-50%, 0);
    }

    .dropdown-panel {
      width: 300px;
      padding: 12px;
    }

    .dropdown-panel > a:not(.dropdown-footer) {
      display: block;
      padding: 10px 12px;
      color: #344054;
      font-size: 14px;
      border-radius: 8px;
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
      transition: color 0.2s ease, background 0.2s ease;
    }

    .dropdown-panel > a:not(.dropdown-footer):hover,
    .dropdown-panel > a:not(.dropdown-footer):focus-visible {
      color: var(--brand);
      background: var(--brand-soft);
    }

    .dropdown-footer,
    .mega-footer {
      display: block;
      margin-top: 8px;
      padding: 11px 13px;
      color: var(--brand);
      background: var(--brand-soft);
      border-radius: 9px;
      font-size: 13px;
      font-weight: 800;
      text-align: center;
    }

    .mega-menu {
      width: min(760px, calc(100vw - 40px));
      padding: 20px;
    }

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

    .nav-item:nth-last-child(-n+2) .mega-menu {
      left: auto;
      right: 0;
      transform: translateY(10px);
    }

    .nav-item:nth-last-child(-n+2):hover > .mega-menu,
    .nav-item:nth-last-child(-n+2):focus-within > .mega-menu {
      transform: translateY(0);
    }

    .mega-head {
      margin-bottom: 14px;
      padding-bottom: 12px;
      display: flex;
      align-items: baseline;
      justify-content: space-between;
      gap: 20px;
      border-bottom: 1px solid var(--line);
    }

    .mega-head strong {
      color: var(--brand-deep);
      font-size: 17px;
    }

    .mega-head span {
      color: var(--muted);
      font-size: 13px;
    }

    .mega-categories {
      margin-bottom: 15px;
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .mega-categories a {
      padding: 6px 11px;
      color: #475467;
      background: #f2f5f9;
      border: 1px solid #e6ebf2;
      border-radius: 999px;
      font-size: 12px;
      font-weight: 700;
      transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
    }

    .mega-categories a:hover,
    .mega-categories a:focus-visible {
      color: var(--brand);
      background: var(--brand-soft);
      border-color: #b9cbed;
    }

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

    .mega-card {
      min-width: 0;
      padding: 10px;
      display: flex;
      align-items: flex-start;
      gap: 10px;
      background: #f8fafc;
      border: 1px solid #edf1f6;
      border-radius: 11px;
      transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
    }

    .mega-card:hover,
    .mega-card:focus-visible {
      border-color: #b9cbed;
      box-shadow: var(--shadow-sm);
      transform: translateY(-2px);
    }

    .mega-card > img {
      width: 46px;
      height: 46px;
      flex: 0 0 46px;
      object-fit: cover;
      background: #fff;
      border-radius: 9px;
    }

    .mega-card-text {
      min-width: 0;
      display: block;
    }

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

    .mega-card-text b {
      color: #263247;
      font-size: 13px;
      white-space: nowrap;
    }

    .mega-card-text p {
      margin: 3px 0;
      color: var(--muted);
      font-size: 11px;
      line-height: 1.45;
      white-space: nowrap;
    }

    .mega-card-text small {
      margin-top: 2px;
      color: #7b8495;
      font-size: 10px;
      white-space: nowrap;
    }

    .header-btns {
      display: flex;
      align-items: center;
      gap: 10px;
      white-space: nowrap;
    }

    .member-entry {
      color: var(--brand);
      font-size: 14px;
      font-weight: 700;
    }

    .account-btn {
      padding: 9px 16px;
      color: #fff;
      background: var(--brand);
      border: 1px solid var(--brand);
      border-radius: 999px;
      font-size: 14px;
      font-weight: 800;
      box-shadow: 0 7px 16px rgba(11, 61, 145, 0.2);
      transition: background 0.2s ease, transform 0.2s ease;
    }

    .account-btn:hover,
    .account-btn:focus-visible {
      background: var(--brand-deep);
      transform: translateY(-1px);
    }

    .hamburger {
      width: 44px;
      height: 44px;
      padding: 0;
      display: none;
      align-items: center;
      justify-content: center;
      flex-direction: column;
      gap: 5px;
      color: var(--brand);
      background: var(--brand-soft);
      border: 1px solid #cbd8ed;
      border-radius: 12px;
      cursor: pointer;
    }

    .hamburger span {
      width: 20px;
      height: 2px;
      display: block;
      background: currentColor;
      border-radius: 4px;
      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: 1500;
      visibility: hidden;
      opacity: 0;
      background: rgba(8, 18, 36, 0.58);
      backdrop-filter: blur(3px);
      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: 1600;
      width: min(390px, 92vw);
      overflow-y: auto;
      background: #fff;
      box-shadow: -20px 0 55px rgba(8, 18, 36, 0.2);
      transform: translateX(105%);
      transition: transform 0.28s ease;
    }

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

    .drawer-head {
      min-height: 72px;
      padding: 14px 18px;
      display: flex;
      align-items: center;
      gap: 12px;
      color: #fff;
      background: var(--brand-deep);
    }

    .drawer-head > a {
      padding: 7px 11px;
      background: rgba(255, 255, 255, 0.13);
      border: 1px solid rgba(255, 255, 255, 0.2);
      border-radius: 999px;
      font-size: 13px;
      font-weight: 700;
    }

    .drawer-close {
      width: 38px;
      height: 38px;
      margin-left: auto;
      padding: 0;
      color: #fff;
      background: transparent;
      border: 1px solid rgba(255, 255, 255, 0.3);
      border-radius: 10px;
      font-size: 26px;
      line-height: 1;
      cursor: pointer;
    }

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

    .drawer-link,
    .drawer-toggle {
      width: 100%;
      padding: 14px 4px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      color: #263247;
      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;
      margin-right: 5px;
      content: "";
      border-right: 2px solid var(--brand);
      border-bottom: 2px solid var(--brand);
      transform: rotate(45deg);
      transition: transform 0.2s ease;
    }

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

    .drawer-submenu {
      max-height: 0;
      overflow: hidden;
      background: #f6f8fb;
      border-radius: 0 0 10px 10px;
      transition: max-height 0.35s ease;
    }

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

    .drawer-submenu a {
      display: block;
      padding: 10px 14px;
      color: #475467;
      border-bottom: 1px solid #e9edf3;
      font-size: 14px;
    }

    .drawer-submenu a:hover,
    .drawer-submenu a:focus-visible {
      color: var(--brand);
      background: var(--brand-soft);
    }

    .video-page {
      min-height: 65vh;
    }

    .video-page .video-masthead {
      position: relative;
      overflow: hidden;
      padding: 72px 0 66px;
      color: #fff;
      background:
        radial-gradient(circle at 18% 20%, rgba(149, 191, 255, 0.26), transparent 27%),
        radial-gradient(circle at 82% 72%, rgba(87, 143, 226, 0.24), transparent 30%),
        linear-gradient(135deg, var(--brand-deep), var(--brand) 58%, #315fa6);
    }

    .video-page .video-masthead::before,
    .video-page .video-masthead::after {
      position: absolute;
      content: "";
      border: 1px solid rgba(255, 255, 255, 0.13);
      border-radius: 50%;
    }

    .video-page .video-masthead::before {
      top: -110px;
      right: 10%;
      width: 330px;
      height: 330px;
    }

    .video-page .video-masthead::after {
      bottom: -150px;
      left: 8%;
      width: 290px;
      height: 290px;
    }

    .video-page .masthead-inner {
      position: relative;
      z-index: 1;
      max-width: 820px;
      margin-inline: auto;
      text-align: center;
    }

    .video-page .section-kicker {
      margin: 0 0 10px;
      color: #cfe0fb;
      font-size: 13px;
      font-weight: 800;
      letter-spacing: 0.16em;
    }

    .video-page .video-masthead h1 {
      margin: 0;
      font-size: clamp(34px, 5vw, 58px);
      line-height: 1.12;
      letter-spacing: -0.035em;
    }

    .video-page .video-masthead p {
      max-width: 680px;
      margin: 18px auto 0;
      color: #e5eefc;
      font-size: 17px;
    }

    .video-page .category-strip {
      position: relative;
      z-index: 3;
      margin-top: -25px;
    }

    .video-page .category-panel {
      padding: 18px;
      display: flex;
      align-items: center;
      gap: 14px;
      background: #fff;
      border: 1px solid var(--line);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-md);
    }

    .video-page .category-label {
      flex: 0 0 auto;
      padding: 7px 11px;
      color: #fff;
      background: var(--brand);
      border-radius: 999px;
      font-size: 13px;
      font-weight: 800;
    }

    .video-page .category-links {
      min-width: 0;
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 8px;
    }

    .video-page .category-links a {
      padding: 7px 12px;
      color: #475467;
      background: #f5f7fa;
      border: 1px solid #e4e9f0;
      border-radius: 999px;
      font-size: 13px;
      font-weight: 700;
      transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
    }

    .video-page .category-links a:hover,
    .video-page .category-links a:focus-visible {
      color: var(--brand);
      background: var(--brand-soft);
      border-color: #b7c9e8;
    }

    .video-page .video-library {
      padding: 64px 0 82px;
    }

    .video-page .library-head {
      margin-bottom: 26px;
      display: flex;
      align-items: flex-end;
      justify-content: space-between;
      gap: 24px;
    }

    .video-page .library-head h2 {
      margin: 0;
      color: var(--brand-deep);
      font-size: clamp(26px, 4vw, 36px);
      line-height: 1.2;
      letter-spacing: -0.025em;
    }

    .video-page .library-head p {
      max-width: 610px;
      margin: 8px 0 0;
      color: var(--muted);
    }

    .video-page .library-note {
      flex: 0 0 auto;
      padding: 8px 12px;
      color: var(--success);
      background: #e9f7f3;
      border: 1px solid #c9e9df;
      border-radius: 999px;
      font-size: 13px;
      font-weight: 800;
    }

    .video-page .video-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 24px;
    }

    .video-page .video-card {
      min-width: 0;
      overflow: hidden;
      display: flex;
      flex-direction: column;
      background: #fff;
      border: 1px solid var(--line);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-sm);
      transition: transform 0.24s ease, box-shadow 0.24s ease, border-color 0.24s ease;
    }

    .video-page .video-card:hover,
    .video-page .video-card:focus-within {
      border-color: #b8c9e7;
      box-shadow: var(--shadow-md);
      transform: translateY(-5px);
    }

    .video-page .video-cover {
      position: relative;
      overflow: hidden;
      aspect-ratio: 16 / 9;
      background: #dfe8f5;
    }

    .video-page .video-cover img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }

    .video-page .video-card:hover .video-cover img,
    .video-page .video-card:focus-within .video-cover img {
      transform: scale(1.045);
    }

    .video-page .play-mark {
      position: absolute;
      top: 50%;
      left: 50%;
      width: 54px;
      height: 54px;
      display: grid;
      place-items: center;
      color: #fff;
      background: rgba(11, 61, 145, 0.9);
      border: 3px solid rgba(255, 255, 255, 0.84);
      border-radius: 50%;
      box-shadow: 0 10px 24px rgba(5, 22, 54, 0.25);
      transform: translate(-50%, -50%);
    }

    .video-page .play-mark::before {
      margin-left: 4px;
      content: "";
      border-top: 8px solid transparent;
      border-bottom: 8px solid transparent;
      border-left: 13px solid currentColor;
    }

    .video-page .duration {
      position: absolute;
      right: 10px;
      bottom: 10px;
      padding: 4px 8px;
      color: #fff;
      background: rgba(10, 17, 30, 0.78);
      border-radius: 6px;
      font-size: 12px;
      font-weight: 800;
      backdrop-filter: blur(4px);
    }

    .video-page .video-card-body {
      min-width: 0;
      padding: 20px;
      display: flex;
      flex: 1;
      flex-direction: column;
    }

    .video-page .video-type {
      width: fit-content;
      margin-bottom: 10px;
      padding: 4px 9px;
      color: var(--brand);
      background: var(--brand-soft);
      border-radius: 999px;
      font-size: 12px;
      font-weight: 800;
    }

    .video-page .video-card h3 {
      margin: 0;
      color: #1d2939;
      font-size: 19px;
      line-height: 1.4;
    }

    .video-page .video-card h3 a {
      transition: color 0.2s ease;
    }

    .video-page .video-card h3 a:hover,
    .video-page .video-card h3 a:focus-visible {
      color: var(--brand);
    }

    .video-page .video-summary {
      margin: 10px 0 18px;
      display: -webkit-box;
      overflow: hidden;
      color: var(--muted);
      font-size: 14px;
      line-height: 1.75;
      -webkit-box-orient: vertical;
      -webkit-line-clamp: 3;
    }

    .video-page .video-card-footer {
      margin-top: auto;
      padding-top: 14px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      border-top: 1px solid #edf0f4;
    }

    .video-page .video-card-footer span {
      color: #7b8495;
      font-size: 13px;
    }

    .video-page .watch-link {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: var(--brand);
      font-size: 14px;
      font-weight: 800;
    }

    .video-page .watch-link::after {
      content: "→";
      transition: transform 0.2s ease;
    }

    .video-page .watch-link:hover::after,
    .video-page .watch-link:focus-visible::after {
      transform: translateX(4px);
    }

    .video-page .pagination-wrap {
      margin-top: 42px;
      display: flex;
      justify-content: center;
    }

    .video-page .pagination {
      display: flex;
      align-items: center;
      justify-content: center;
      flex-wrap: wrap;
      gap: 8px;
    }

    .video-page .pagination a {
      min-width: 42px;
      min-height: 42px;
      padding: 8px 13px;
      display: inline-grid;
      place-items: center;
      color: #475467;
      background: #fff;
      border: 1px solid var(--line);
      border-radius: 10px;
      font-size: 14px;
      font-weight: 800;
      box-shadow: 0 4px 12px rgba(23, 32, 51, 0.04);
      transition: color 0.2s ease, background 0.2s ease, border-color 0.2s ease;
    }

    .video-page .pagination a:hover,
    .video-page .pagination a:focus-visible,
    .video-page .pagination a.active,
    .video-page .pagination a.current {
      color: #fff;
      background: var(--brand);
      border-color: var(--brand);
    }

    .video-page .learning-cta {
      padding: 0 0 80px;
    }

    .video-page .learning-cta-inner {
      padding: 34px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 30px;
      color: #fff;
      background: linear-gradient(135deg, var(--brand-deep), var(--brand));
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-md);
    }

    .video-page .learning-cta h2 {
      margin: 0 0 8px;
      font-size: 25px;
      line-height: 1.3;
    }

    .video-page .learning-cta p {
      max-width: 720px;
      margin: 0;
      color: #dbe8fb;
    }

    .video-page .cta-button {
      flex: 0 0 auto;
      padding: 12px 20px;
      color: var(--brand-deep);
      background: #fff;
      border-radius: 999px;
      font-weight: 800;
      box-shadow: 0 8px 20px rgba(5, 22, 54, 0.18);
      transition: transform 0.2s ease;
    }

    .video-page .cta-button:hover,
    .video-page .cta-button:focus-visible {
      transform: translateY(-2px);
    }

    .footer {
      color: #cbd5e4;
      background: #091a35;
    }

    .footer-grid {
      padding: 62px 0 48px;
      display: grid;
      grid-template-columns: 1.45fr 1fr 1fr 1fr;
      gap: 42px;
    }

    .footer .logo {
      color: #fff;
    }

    .footer-brand p {
      max-width: 430px;
      margin: 18px 0;
      color: #aebbd0;
      font-size: 14px;
    }

    .footer-social {
      color: #fff;
    }

    .footer h2 {
      margin: 4px 0 18px;
      color: #fff;
      font-size: 16px;
    }

    .footer-links,
    .footer-contact {
      display: grid;
      gap: 10px;
    }

    .footer-links a,
    .footer-contact a {
      color: #b9c5d6;
      font-size: 14px;
      transition: color 0.2s ease, transform 0.2s ease;
    }

    .footer-links a:hover,
    .footer-links a:focus-visible,
    .footer-contact a:hover,
    .footer-contact a:focus-visible {
      color: #fff;
      transform: translateX(3px);
    }

    .footer-bottom {
      min-height: 70px;
      padding: 18px 0;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
      color: #98a7bd;
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      font-size: 13px;
    }

    :focus-visible {
      outline: 3px solid rgba(48, 112, 218, 0.35);
      outline-offset: 3px;
    }

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

      .hamburger {
        display: flex;
      }

      .header-inner {
        min-height: 72px;
      }

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

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

    @media (max-width: 820px) {
      .footer-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }

      .video-page .category-panel {
        align-items: flex-start;
        flex-direction: column;
      }

      .video-page .library-head {
        align-items: flex-start;
        flex-direction: column;
      }

      .video-page .learning-cta-inner {
        align-items: flex-start;
        flex-direction: column;
      }
    }

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

      .topbar-inner {
        padding: 8px 0;
        align-items: flex-start;
        flex-direction: column;
        gap: 3px;
      }

      .topbar-contact {
        width: 100%;
        justify-content: space-between;
        gap: 12px;
      }

      .header .logo span {
        max-width: 120px;
      }

      .member-entry {
        display: none;
      }

      .account-btn {
        padding: 8px 13px;
      }

      .video-page .video-masthead {
        padding: 55px 0 54px;
      }

      .video-page .video-masthead p {
        font-size: 15px;
      }

      .video-page .video-library {
        padding: 54px 0 65px;
      }

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

      .video-page .learning-cta {
        padding-bottom: 65px;
      }

      .video-page .learning-cta-inner {
        padding: 26px 22px;
        border-radius: var(--radius-md);
      }

      .footer-grid {
        padding: 48px 0 36px;
        grid-template-columns: 1fr;
        gap: 32px;
      }

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

    @media (max-width: 420px) {
      .topbar-contact {
        flex-direction: column;
        gap: 2px;
      }

      .header-inner {
        gap: 10px;
      }

      .header .logo img {
        width: 38px;
        height: 38px;
        flex-basis: 38px;
      }

      .header .logo span {
        max-width: 92px;
        font-size: 14px;
      }

      .account-btn {
        font-size: 13px;
      }

      .video-page .video-card-body {
        padding: 17px;
      }
    }