/* roulang page: index */
:root {
    --bg-deep: #090D16;
    --bg-surface: #0E1527;
    --primary: #2F7BFF;
    --cyan: #00C6FF;
    --amber: #FFAB5E;
    --success: #34D399;
    --text-main: rgba(255, 255, 255, 0.96);
    --text-sub: rgba(255, 255, 255, 0.66);
    --text-weak: rgba(255, 255, 255, 0.4);
    --border-glass: rgba(255, 255, 255, 0.08);
    --radius-lg: 22px;
    --radius-md: 14px;
    --shadow-glow: 0 0 44px rgba(47, 123, 255, 0.26);
  }

  * {
    box-sizing: border-box;
  }

  html {
    scroll-behavior: smooth;
  }

  body {
    background: var(--bg-deep);
    color: var(--text-main);
    font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
  }

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

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

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

  .container-cus {
    max-width: 1280px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 24px;
    padding-right: 24px;
  }

  .text-sub {
    color: var(--text-sub);
  }

  .text-weak {
    color: var(--text-weak);
  }

  .glass-card {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
  }

  .glass-card:hover {
    transform: translateY(-4px);
    border-color: rgba(255, 255, 255, 0.2);
    box-shadow: 0 0 40px rgba(47, 123, 255, 0.12);
  }

  .clamp-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

  .hero-grid {
    background-image:
      linear-gradient(rgba(0, 198, 255, 0.05) 1px, transparent 1px),
      linear-gradient(90deg, rgba(0, 198, 255, 0.05) 1px, transparent 1px);
    background-size: 44px 44px;
  }

  .hero-glow {
    background: radial-gradient(circle at 78% 20%, rgba(0, 198, 255, 0.2), transparent 45%),
      radial-gradient(circle at 20% 85%, rgba(47, 123, 255, 0.24), transparent 50%);
  }

  /* ===== App Sidebar ===== */
  .app-sidebar {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    width: 76px;
    background: rgba(10, 14, 23, 0.9);
    border-right: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    z-index: 80;
    display: flex;
    flex-direction: column;
    transition: width 0.32s ease;
    overflow: hidden;
  }

  .sidebar-inner {
    display: flex;
    flex-direction: column;
    flex: 1;
    min-width: 230px;
    padding: 20px 14px;
  }

  .sidebar-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 8px 22px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.07);
    margin-bottom: 18px;
  }

  .logo-mark {
    width: 42px;
    height: 42px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 14px;
    background: linear-gradient(135deg, #2F7BFF 0%, #00C6FF 100%);
    color: #fff;
    font-weight: 800;
    font-size: 18px;
    box-shadow: 0 0 24px rgba(47, 123, 255, 0.4);
  }

  .nav-text {
    opacity: 0;
    width: 0;
    overflow: hidden;
    white-space: nowrap;
    transition: opacity 0.25s ease, width 0.32s ease;
    font-size: 15px;
    font-weight: 600;
  }

  .app-sidebar:hover .nav-text,
  .app-sidebar.open .nav-text {
    opacity: 1;
    width: 132px;
  }

  .sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 6px;
    flex: 1;
  }

  .nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 10px;
    border-radius: 12px;
    color: rgba(255, 255, 255, 0.65);
    transition: background 0.2s ease, color 0.2s ease;
    white-space: nowrap;
    position: relative;
  }

  .nav-item svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
  }

  .nav-item:hover {
    background: rgba(255, 255, 255, 0.06);
    color: #fff;
  }

  .nav-item.active {
    background: rgba(47, 123, 255, 0.14);
    color: #fff;
    font-weight: 600;
  }

  .nav-item.active::before {
    content: '';
    position: absolute;
    left: -14px;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 22px;
    border-radius: 0 6px 6px 0;
    background: var(--cyan);
    box-shadow: 0 0 14px rgba(0, 198, 255, 0.6);
  }

  .sidebar-cta {
    margin-top: 20px;
    padding: 14px 0 6px;
    border-top: 1px solid rgba(255, 255, 255, 0.07);
  }

  .sidebar-cta a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 10px;
    border-radius: 12px;
    background: linear-gradient(135deg, rgba(47, 123, 255, 0.24), rgba(0, 198, 255, 0.12));
    border: 1px solid rgba(0, 198, 255, 0.24);
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    transition: box-shadow 0.25s ease, transform 0.25s ease;
  }

  .sidebar-cta a:hover {
    box-shadow: var(--shadow-glow);
    transform: translateY(-2px);
  }

  .app-main {
    margin-left: 76px;
    transition: margin-left 0.32s ease;
  }

  .app-sidebar:hover + .app-main {
    margin-left: 230px;
  }

  @media (min-width: 769px) {
    .app-sidebar:hover {
      width: 230px;
      box-shadow: 20px 0 40px rgba(0, 0, 0, 0.24);
    }
  }

  @media (max-width: 768px) {
    .app-sidebar {
      width: 240px;
      transform: translateX(-100%);
      transition: transform 0.3s ease;
      box-shadow: 24px 0 50px rgba(0, 0, 0, 0.35);
      background: rgba(10, 14, 23, 0.97);
    }

    .app-sidebar.open {
      transform: translateX(0);
    }

    .app-sidebar:hover {
      width: 240px;
    }

    .app-sidebar .nav-text,
    .app-sidebar.open .nav-text {
      opacity: 1;
      width: 132px;
    }

    .app-sidebar:hover + .app-main,
    .app-sidebar.open + .app-main {
      margin-left: 0;
    }

    .app-main {
      margin-left: 0;
    }
  }

  /* ===== Mobile Topbar ===== */
  .mobile-topbar {
    position: sticky;
    top: 0;
    z-index: 90;
    display: none;
    align-items: center;
    justify-content: space-between;
    padding: 12px 18px;
    background: rgba(9, 13, 22, 0.85);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }

  .mobile-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    font-size: 16px;
    letter-spacing: 0.02em;
  }

  .mobile-logo .logo-mark {
    width: 34px;
    height: 34px;
    font-size: 15px;
    border-radius: 10px;
  }

  .menu-btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: rgba(255, 255, 255, 0.05);
    color: #fff;
    cursor: pointer;
    transition: background 0.2s ease;
  }

  .menu-btn:hover {
    background: rgba(255, 255, 255, 0.1);
  }

  @media (max-width: 768px) {
    .mobile-topbar {
      display: flex;
    }
  }

  .drawer-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    z-index: 70;
    display: none;
    opacity: 0;
    transition: opacity 0.3s ease;
  }

  .drawer-overlay.show {
    display: block;
    opacity: 1;
  }

  /* ===== Buttons ===== */
  .btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 30px;
    border-radius: 999px;
    background: linear-gradient(135deg, #2F7BFF 0%, #00C6FF 100%);
    color: #fff;
    font-size: 15px;
    font-weight: 700;
    box-shadow: 0 0 0 rgba(47, 123, 255, 0);
    transition: transform 0.25s ease, box-shadow 0.25s ease, opacity 0.25s ease;
  }

  .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 36px rgba(47, 123, 255, 0.46);
  }

  .btn-primary:focus-visible {
    outline: 2px solid rgba(0, 198, 255, 0.6);
    outline-offset: 3px;
  }

  .btn-ghost {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 13px 28px;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.16);
    background: rgba(255, 255, 255, 0.04);
    color: rgba(255, 255, 255, 0.9);
    font-size: 15px;
    font-weight: 600;
    backdrop-filter: blur(12px);
    transition: transform 0.25s ease, border-color 0.25s ease, background 0.25s ease;
  }

  .btn-ghost:hover {
    transform: translateY(-2px);
    border-color: rgba(0, 198, 255, 0.5);
    background: rgba(255, 255, 255, 0.08);
  }

  .btn-ghost:focus-visible {
    outline: 2px solid rgba(0, 198, 255, 0.5);
    outline-offset: 3px;
  }

  .btn-amber {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 13px 28px;
    border-radius: 999px;
    background: linear-gradient(135deg, #FFAB5E 0%, #FF8A3D 100%);
    color: #201208;
    font-size: 15px;
    font-weight: 800;
    box-shadow: 0 0 0 rgba(255, 171, 94, 0);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
  }

  .btn-amber:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 32px rgba(255, 171, 94, 0.4);
  }

  .btn-amber:focus-visible {
    outline: 2px solid rgba(255, 171, 94, 0.7);
    outline-offset: 3px;
  }

  /* ===== Badges ===== */
  .badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    border-radius: 999px;
    border: 1px solid rgba(0, 198, 255, 0.26);
    background: rgba(0, 198, 255, 0.08);
    color: rgba(255, 255, 255, 0.9);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.02em;
  }

  .badge-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--cyan);
    box-shadow: 0 0 12px rgba(0, 198, 255, 0.8);
  }

  .tag {
    display: inline-flex;
    align-items: center;
    padding: 3px 12px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
    line-height: 1.6;
    background: rgba(47, 123, 255, 0.14);
    border: 1px solid rgba(47, 123, 255, 0.3);
    color: rgba(255, 255, 255, 0.85);
  }

  .tag-hot {
    background: rgba(255, 171, 94, 0.14);
    border-color: rgba(255, 171, 94, 0.4);
    color: #FFC799;
  }

  .tag-official {
    background: rgba(52, 211, 153, 0.12);
    border-color: rgba(52, 211, 153, 0.35);
    color: #6EE7B7;
  }

  .tag-cyan {
    background: rgba(0, 198, 255, 0.1);
    border-color: rgba(0, 198, 255, 0.32);
    color: #8BE8FF;
  }

  /* ===== Section headers ===== */
  .section-title {
    font-size: 30px;
    font-weight: 800;
    line-height: 1.3;
    letter-spacing: -0.01em;
  }

  .section-sub {
    color: var(--text-sub);
    font-size: 15px;
    margin-top: 8px;
  }

  .section-head {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-end;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 40px;
  }

  /* ===== Feature cards ===== */
  .feature-card {
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.07);
    transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
  }

  .feature-card:hover {
    transform: translateY(-6px);
    border-color: rgba(255, 255, 255, 0.18);
    box-shadow: 0 18px 44px rgba(0, 0, 0, 0.34), 0 0 40px rgba(47, 123, 255, 0.08);
  }

  .feature-card img {
    width: 100%;
    height: 190px;
    object-fit: cover;
  }

  .feature-card .feature-body {
    padding: 24px 26px;
  }

  .feature-card h3 {
    font-size: 19px;
    font-weight: 700;
    margin-bottom: 8px;
  }

  .feature-card p {
    color: var(--text-sub);
    font-size: 14px;
    line-height: 1.75;
  }

  /* ===== Pricing tier ===== */
  .plan-card {
    border-radius: 24px;
    padding: 34px 30px;
    position: relative;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
  }

  .plan-card:hover {
    transform: translateY(-5px);
    border-color: rgba(255, 255, 255, 0.18);
    box-shadow: 0 18px 44px rgba(0, 0, 0, 0.3);
  }

  .plan-card.hot {
    background: linear-gradient(180deg, rgba(47, 123, 255, 0.1), rgba(0, 198, 255, 0.04));
    border: 1px solid rgba(0, 198, 255, 0.3);
    box-shadow: 0 0 50px rgba(47, 123, 255, 0.12);
  }

  .plan-card.hot:hover {
    box-shadow: 0 16px 50px rgba(47, 123, 255, 0.2);
  }

  .plan-recommend {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, #FFAB5E, #FF8A3D);
    color: #201208;
    font-size: 12px;
    font-weight: 800;
    padding: 4px 18px;
    border-radius: 999px;
    box-shadow: 0 4px 18px rgba(255, 171, 94, 0.35);
    white-space: nowrap;
  }

  .plan-name {
    font-size: 20px;
    font-weight: 800;
    margin-bottom: 6px;
  }

  .plan-price {
    font-size: 30px;
    font-weight: 900;
    letter-spacing: -0.02em;
    margin: 14px 0 2px;
    font-family: 'Roboto Mono', ui-monospace, monospace;
  }

  .plan-price small {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-sub);
  }

  .plan-desc {
    color: var(--text-sub);
    font-size: 13px;
    margin-bottom: 22px;
  }

  .plan-list {
    list-style: none;
    padding: 0;
    margin: 0 0 28px;
    display: grid;
    gap: 12px;
  }

  .plan-list li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.85);
  }

  .plan-list svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    margin-top: 2px;
    color: var(--cyan);
  }

  .plan-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    padding: 12px 20px;
    border-radius: 999px;
    font-size: 15px;
    font-weight: 700;
    border: 1px solid rgba(255, 255, 255, 0.14);
    background: rgba(255, 255, 255, 0.05);
    color: #fff;
    transition: all 0.25s ease;
  }

  .plan-btn:hover {
    background: linear-gradient(135deg, #2F7BFF, #00C6FF);
    border-color: transparent;
    box-shadow: 0 0 30px rgba(47, 123, 255, 0.34);
    transform: translateY(-2px);
  }

  /* ===== Plan table ===== */
  .plan-table-wrap {
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(255, 255, 255, 0.02);
    overflow-x: auto;
  }

  .plan-table {
    width: 100%;
    min-width: 760px;
    border-collapse: collapse;
  }

  .plan-table th,
  .plan-table td {
    padding: 15px 20px;
    text-align: left;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    font-size: 14px;
  }

  .plan-table thead th {
    background: rgba(255, 255, 255, 0.03);
    font-weight: 700;
    color: rgba(255, 255, 255, 0.92);
  }

  .plan-table .group-row {
    background: rgba(255, 255, 255, 0.025);
    font-weight: 700;
    color: rgba(255, 255, 255, 0.78);
    letter-spacing: 0.02em;
  }

  .plan-table tbody tr:hover {
    background: rgba(255, 255, 255, 0.035);
  }

  .plan-table td.hot-col {
    background: rgba(0, 198, 255, 0.06);
    border-left: 1px solid rgba(0, 198, 255, 0.14);
    border-right: 1px solid rgba(0, 198, 255, 0.14);
  }

  .plan-table th.hot-col {
    background: rgba(0, 198, 255, 0.1);
    border-left: 1px solid rgba(0, 198, 255, 0.18);
    border-right: 1px solid rgba(0, 198, 255, 0.18);
    position: relative;
  }

  .plan-table .check {
    color: var(--cyan);
    font-weight: 700;
    font-size: 15px;
  }

  .plan-table .none {
    color: rgba(255, 255, 255, 0.28);
  }

  .plan-table .inline-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 5px 16px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 700;
    background: linear-gradient(135deg, #2F7BFF, #00C6FF);
    color: #fff;
    white-space: nowrap;
    transition: box-shadow 0.25s ease, transform 0.25s ease;
  }

  .plan-table .inline-cta:hover {
    box-shadow: 0 0 22px rgba(47, 123, 255, 0.5);
    transform: translateY(-1px);
  }

  /* ===== News cards ===== */
  .news-card {
    display: flex;
    flex-direction: column;
    height: 100%;
    padding: 24px;
    border-radius: var(--radius-lg);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.07);
    transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
  }

  .news-card:hover {
    transform: translateY(-4px);
    border-color: rgba(255, 255, 255, 0.18);
    box-shadow: 0 14px 40px rgba(0, 0, 0, 0.28), 0 0 30px rgba(0, 198, 255, 0.07);
  }

  .news-cat {
    display: inline-block;
    align-self: flex-start;
    font-size: 12px;
    font-weight: 700;
    color: #8BE8FF;
    padding: 3px 12px;
    border-radius: 999px;
    background: rgba(0, 198, 255, 0.1);
    border: 1px solid rgba(0, 198, 255, 0.26);
  }

  .news-card h3 {
    font-size: 17px;
    font-weight: 700;
    line-height: 1.55;
    margin-top: 14px;
    color: rgba(255, 255, 255, 0.95);
    transition: color 0.2s ease;
  }

  .news-card:hover h3 {
    color: #8BE8FF;
  }

  .news-card p {
    font-size: 14px;
    color: var(--text-sub);
    margin-top: 10px;
    flex: 1;
  }

  .news-card .news-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 18px;
    padding-top: 16px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
  }

  .news-card time {
    font-size: 13px;
    color: var(--text-weak);
    font-family: 'Roboto Mono', ui-monospace, monospace;
    font-variant-numeric: tabular-nums;
  }

  .news-card .read-more {
    font-size: 13px;
    font-weight: 600;
    color: var(--cyan);
    display: inline-flex;
    align-items: center;
    gap: 4px;
    transition: gap 0.2s ease, color 0.2s ease;
  }

  .news-card .read-more:hover {
    gap: 8px;
    color: #fff;
  }

  .empty-state {
    grid-column: 1 / -1;
    padding: 50px 24px;
    text-align: center;
    color: var(--text-sub);
    font-size: 15px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px dashed rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-lg);
  }

  /* ===== Offer banner ===== */
  .offer-banner {
    position: relative;
    overflow: hidden;
    border-radius: 28px;
    padding: 44px 44px;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
    background:
      linear-gradient(135deg, rgba(47, 123, 255, 0.18), rgba(0, 198, 255, 0.08)),
      url('/assets/images/backpic/back-2.png') center / cover no-repeat,
      #0E1527;
    border: 1px solid rgba(255, 255, 255, 0.12);
    box-shadow: inset 0 0 60px rgba(0, 0, 0, 0.22);
  }

  .offer-banner::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(120deg, rgba(9, 13, 22, 0.82), rgba(14, 21, 39, 0.55) 70%);
    z-index: 0;
  }

  .offer-banner > * {
    position: relative;
    z-index: 1;
  }

  .offer-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 700;
    color: #FFC799;
    padding: 5px 16px;
    border-radius: 999px;
    background: rgba(255, 171, 94, 0.14);
    border: 1px solid rgba(255, 171, 94, 0.38);
  }

  .offer-badge .pulse-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--amber);
    box-shadow: 0 0 0 rgba(255, 171, 94, 0.5);
    animation: pulse-dot 1.6s ease infinite;
  }

  @keyframes pulse-dot {
    0% {
      box-shadow: 0 0 0 0 rgba(255, 171, 94, 0.5);
    }
    70% {
      box-shadow: 0 0 0 9px rgba(255, 171, 94, 0);
    }
    100% {
      box-shadow: 0 0 0 0 rgba(255, 171, 94, 0);
    }
  }

  .offer-banner h2 {
    font-size: 28px;
    font-weight: 800;
    margin-top: 14px;
    letter-spacing: -0.01em;
  }

  .offer-banner p {
    color: rgba(255, 255, 255, 0.72);
    font-size: 14px;
    max-width: 560px;
    margin-top: 8px;
  }

  .countdown {
    display: flex;
    gap: 14px;
  }

  .countdown-box {
    min-width: 72px;
    text-align: center;
    padding: 12px 10px 10px;
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
  }

  .countdown-box strong {
    display: block;
    font-family: 'Roboto Mono', ui-monospace, monospace;
    font-size: 28px;
    font-weight: 800;
    font-variant-numeric: tabular-nums;
    line-height: 1.2;
    color: #FFC799;
  }

  .countdown-box span {
    display: block;
    font-size: 12px;
    color: rgba(255, 255, 255, 0.55);
    margin-top: 2px;
  }

  /* ===== Form ===== */
  .form-card {
    border-radius: 28px;
    padding: 42px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
  }

  .form-card input,
  .form-card select,
  .form-card textarea {
    width: 100%;
    padding: 13px 16px;
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: #fff;
    font-size: 14px;
    transition: border-color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
  }

  .form-card input::placeholder,
  .form-card textarea::placeholder {
    color: rgba(255, 255, 255, 0.4);
  }

  .form-card select option {
    background: #0E1527;
    color: #fff;
  }

  .form-card input:focus,
  .form-card select:focus,
  .form-card textarea:focus {
    outline: none;
    border-color: rgba(0, 198, 255, 0.55);
    background: rgba(255, 255, 255, 0.07);
    box-shadow: 0 0 0 4px rgba(0, 198, 255, 0.1);
  }

  .form-submit {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 15px 40px;
    border-radius: 999px;
    background: linear-gradient(135deg, #2F7BFF, #00C6FF);
    color: #fff;
    font-size: 16px;
    font-weight: 700;
    border: none;
    cursor: pointer;
    box-shadow: 0 0 0 rgba(47, 123, 255, 0);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
  }

  .form-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 38px rgba(47, 123, 255, 0.44);
  }

  .form-submit:focus-visible {
    outline: 2px solid rgba(0, 198, 255, 0.6);
    outline-offset: 3px;
  }

  .form-note {
    font-size: 13px;
    color: var(--text-sub);
    margin-top: 18px;
    display: flex;
    align-items: center;
    gap: 8px;
  }

  .form-note svg {
    width: 16px;
    height: 16px;
    color: var(--success);
  }

  /* ===== FAQ ===== */
  .faq-item {
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    overflow: hidden;
    transition: border-color 0.25s ease, background 0.25s ease;
  }

  .faq-item:hover {
    border-color: rgba(255, 255, 255, 0.16);
    background: rgba(255, 255, 255, 0.04);
  }

  .faq-item summary {
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    padding: 20px 24px;
    font-size: 15px;
    font-weight: 700;
    color: rgba(255, 255, 255, 0.92);
    list-style: none;
  }

  .faq-item summary::-webkit-details-marker {
    display: none;
  }

  .faq-item summary::after {
    content: '+';
    font-size: 22px;
    font-weight: 400;
    color: rgba(255, 255, 255, 0.4);
    transition: transform 0.25s ease, color 0.25s ease;
    flex-shrink: 0;
  }

  .faq-item[open] summary::after {
    transform: rotate(45deg);
    color: var(--cyan);
  }

  .faq-item .faq-body {
    padding: 0 24px 20px;
    color: var(--text-sub);
    font-size: 14px;
    line-height: 1.85;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    margin-top: 2px;
    padding-top: 16px;
  }

  /* ===== Footer ===== */
  .site-footer {
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    background: #060A12;
    padding: 56px 0 32px;
    margin-top: 20px;
  }

  .site-footer .footer-title {
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 16px;
    color: rgba(255, 255, 255, 0.9);
  }

  .site-footer a.footer-link {
    display: block;
    color: rgba(255, 255, 255, 0.52);
    font-size: 14px;
    padding: 5px 0;
    transition: color 0.2s ease, transform 0.2s ease;
  }

  .site-footer a.footer-link:hover {
    color: #8BE8FF;
    transform: translateX(3px);
  }

  .site-footer .footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    margin-top: 40px;
    padding-top: 24px;
    color: rgba(255, 255, 255, 0.32);
    font-size: 13px;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 12px;
  }

  /* ===== Hero ===== */
  .hero {
    min-height: 560px;
    display: flex;
    align-items: center;
    position: relative;
  }

  .hero-visual {
    position: relative;
    z-index: 2;
  }

  .hero-visual .glass-float {
    position: absolute;
    top: -16px;
    right: 20px;
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.16);
    padding: 8px 18px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.92);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.24);
    animation: floatY 3s ease-in-out infinite;
  }

  .hero-visual .glass-float-2 {
    position: absolute;
    bottom: -14px;
    left: 24px;
    background: rgba(255, 255, 255, 0.06);
    backdrop-filter: blur(16px);
    border: 1px solid rgba(0, 198, 255, 0.22);
    padding: 8px 18px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 600;
    color: #8BE8FF;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.24);
    animation: floatY 3.4s ease-in-out 0.4s infinite;
  }

  @keyframes floatY {
    0%,
    100% {
      transform: translateY(0);
    }
    50% {
      transform: translateY(-8px);
    }
  }

  .stats strong {
    font-family: 'Roboto Mono', ui-monospace, monospace;
    font-size: 26px;
    font-weight: 800;
    display: block;
    line-height: 1.2;
    background: linear-gradient(135deg, #fff, #8BE8FF);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
  }

  .stats span {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.55);
  }

  @media (max-width: 1024px) {
    .container-cus {
      padding-left: 20px;
      padding-right: 20px;
    }

    .section-title {
      font-size: 26px;
    }

    .hero {
      min-height: auto;
    }
  }

  @media (max-width: 768px) {
    .hero-visual {
      margin-top: 20px;
    }

    .offer-banner {
      padding: 32px 22px;
    }

    .offer-banner h2 {
      font-size: 23px;
    }

    .countdown-box {
      min-width: 60px;
    }

    .countdown-box strong {
      font-size: 22px;
    }

    .form-card {
      padding: 26px 20px;
    }

    .section-title {
      font-size: 24px;
    }
  }

  @media (max-width: 560px) {
    .stats strong {
      font-size: 21px;
    }

    .plan-card {
      padding: 26px 22px;
    }

    .hero-visual img {
      border-radius: 20px;
    }
  }

/* roulang page: article */
:root {
    --primary: #2F7BFF;
    --cyan-accent: #00C6FF;
    --orange-accent: #FFAB5E;
    --success: #34D399;
    --bg-page: #090D16;
    --bg-panel: #0E1527;
    --text-main: #F0F4FA;
    --text-sub: #8A95A8;
    --border-white: rgba(255,255,255,0.08);
    --radius-lg: 16px;
    --radius-xl: 24px;
    --transition-fast: 0.25s ease;
  }

  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }

  html {
    scroll-behavior: smooth;
  }

  body {
    background-color: var(--bg-page);
    color: var(--text-main);
    font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, sans-serif;
    font-size: 15px;
    line-height: 1.75;
    background-image: 
      radial-gradient(ellipse at 20% 20%, rgba(47,123,255,0.08) 0%, transparent 50%),
      radial-gradient(ellipse at 80% 0%, rgba(0,198,255,0.05) 0%, transparent 40%);
    background-attachment: fixed;
    min-height: 100vh;
  }

  body.menu-open {
    overflow: hidden;
  }

  .container-cus {
    max-width: 1280px;
    margin: 0 auto;
    padding-left: 24px;
    padding-right: 24px;
  }

  .app-shell {
    display: flex;
    min-height: 100vh;
  }

  .sidebar {
    width: 72px;
    background: rgba(10, 14, 23, 0.85);
    backdrop-filter: blur(20px);
    border-right: 1px solid rgba(255,255,255,0.10);
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    z-index: 50;
    display: flex;
    flex-direction: column;
    transition: width 0.3s ease;
    overflow: hidden;
  }

  .sidebar:hover {
    width: 220px;
  }

  .sidebar-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 20px 14px;
    border-bottom: 1px solid rgba(255,255,255,0.06);
    min-height: 72px;
    flex-shrink: 0;
  }

  .logo-mark {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    background: linear-gradient(135deg, #2F7BFF, #00C6FF);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 900;
    color: #fff;
    flex-shrink: 0;
    box-shadow: 0 0 20px rgba(47,123,255,0.4);
  }

  .logo-text {
    white-space: nowrap;
    font-weight: 700;
    font-size: 14px;
    color: #F0F4FA;
    opacity: 0;
    transition: opacity 0.3s ease;
  }

  .sidebar:hover .logo-text {
    opacity: 1;
  }

  .sidebar-nav {
    flex: 1;
    padding: 24px 10px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    overflow-y: auto;
  }

  .nav-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: 12px;
    color: #8A95A8;
    text-decoration: none;
    white-space: nowrap;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.25s ease;
    position: relative;
  }

  .nav-item svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
  }

  .nav-text {
    opacity: 0;
    transition: opacity 0.3s ease;
    white-space: nowrap;
  }

  .sidebar:hover .nav-text {
    opacity: 1;
  }

  .nav-item:hover {
    color: #fff;
    background: rgba(255,255,255,0.06);
  }

  .nav-item.active {
    color: #00C6FF;
    background: rgba(0,198,255,0.08);
  }

  .nav-item.active::before {
    content: '';
    position: absolute;
    left: -10px;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 20px;
    background: #00C6FF;
    border-radius: 0 4px 4px 0;
    box-shadow: 0 0 10px #00C6FF;
  }

  .sidebar-bottom {
    padding: 16px 10px;
    border-top: 1px solid rgba(255,255,255,0.06);
    flex-shrink: 0;
  }

  .sidebar-bottom a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: 12px;
    background: linear-gradient(135deg, rgba(47,123,255,0.2), rgba(0,198,255,0.1));
    border: 1px solid rgba(47,123,255,0.3);
    color: #fff;
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    white-space: nowrap;
    transition: all 0.25s ease;
  }

  .sidebar-bottom a:hover {
    background: linear-gradient(135deg, rgba(47,123,255,0.35), rgba(0,198,255,0.2));
    box-shadow: 0 0 20px rgba(47,123,255,0.2);
  }

  .sidebar-bottom a svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
  }

  .sidebar-bottom .btn-text {
    opacity: 0;
    transition: opacity 0.3s ease;
  }

  .sidebar:hover .sidebar-bottom .btn-text {
    opacity: 1;
  }

  .mobile-header {
    display: none;
    position: sticky;
    top: 0;
    z-index: 60;
    background: rgba(9, 13, 22, 0.9);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(255,255,255,0.08);
    padding: 0 20px;
    height: 64px;
    align-items: center;
    justify-content: space-between;
  }

  .mobile-menu-btn {
    width: 40px;
    height: 40px;
    border: 1px solid rgba(255,255,255,0.1);
    background: transparent;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: #fff;
    transition: all 0.25s ease;
  }

  .mobile-menu-btn:hover {
    border-color: rgba(0,198,255,0.4);
    background: rgba(0,198,255,0.08);
  }

  .mobile-menu-btn svg {
    width: 22px;
    height: 22px;
  }

  .drawer-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.6);
    z-index: 70;
    backdrop-filter: blur(4px);
    opacity: 0;
    transition: opacity 0.3s ease;
  }

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

  .drawer {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: 260px;
    background: rgba(10, 14, 23, 0.95);
    backdrop-filter: blur(24px);
    border-right: 1px solid rgba(255,255,255,0.1);
    z-index: 80;
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    display: flex;
    flex-direction: column;
    padding: 20px 0;
  }

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

  .drawer .drawer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 0 20px 20px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    margin-bottom: 20px;
  }

  .drawer .nav-item {
    margin: 0 12px;
  }

  .drawer .nav-item.active::before {
    position: static;
    width: 3px;
    height: 20px;
    margin-left: -12px;
    border-radius: 0 4px 4px 0;
  }

  .drawer .nav-text {
    opacity: 1;
  }

  .drawer-sidebar-bottom {
    padding: 16px 12px;
    border-top: 1px solid rgba(255,255,255,0.08);
    margin-top: auto;
  }

  .drawer-sidebar-bottom a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 20px;
    border-radius: 12px;
    background: linear-gradient(135deg, rgba(47,123,255,0.2), rgba(0,198,255,0.1));
    border: 1px solid rgba(47,123,255,0.3);
    color: #fff;
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.25s ease;
  }

  .drawer-sidebar-bottom a:hover {
    background: linear-gradient(135deg, rgba(47,123,255,0.35), rgba(0,198,255,0.2));
  }

  .main-content {
    flex: 1;
    margin-left: 72px;
    min-width: 0;
    display: flex;
    flex-direction: column;
  }

  .article-layout {
    flex: 1;
    padding: 48px 40px 60px;
    max-width: 1280px;
    width: 100%;
    margin: 0 auto;
  }

  .breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: rgba(255,255,255,0.5);
    margin-bottom: 28px;
    flex-wrap: wrap;
  }

  .breadcrumb a {
    color: rgba(255,255,255,0.6);
    text-decoration: none;
    transition: color 0.25s ease;
  }

  .breadcrumb a:hover {
    color: #00C6FF;
  }

  .breadcrumb svg {
    width: 14px;
    height: 14px;
    opacity: 0.5;
  }

  .article-header {
    margin-bottom: 40px;
  }

  .article-header h1 {
    font-size: 32px;
    font-weight: 900;
    line-height: 1.4;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, #FFFFFF 60%, rgba(255,255,255,0.8));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 20px;
  }

  .article-meta {
    display: flex;
    align-items: center;
    gap: 24px;
    flex-wrap: wrap;
    padding: 16px 0;
    border-top: 1px solid rgba(255,255,255,0.06);
    border-bottom: 1px solid rgba(255,255,255,0.06);
  }

  .meta-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: rgba(255,255,255,0.5);
  }

  .meta-item svg {
    width: 16px;
    height: 16px;
  }

  .category-tag {
    display: inline-flex;
    align-items: center;
    padding: 3px 12px;
    border-radius: 20px;
    background: rgba(0,198,255,0.1);
    border: 1px solid rgba(0,198,255,0.25);
    color: #00C6FF;
    font-size: 12px;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.25s ease;
  }

  .category-tag:hover {
    background: rgba(0,198,255,0.2);
    border-color: rgba(0,198,255,0.5);
  }

  .meta-date {
    font-family: 'Roboto Mono', monospace;
    font-size: 13px;
  }

  .article-body-wrap {
    background: rgba(255,255,255,0.02);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: 20px;
    padding: 40px 48px;
    margin-bottom: 40px;
  }

  .article-body {
    max-width: 760px;
    margin: 0 auto;
    font-size: 16px;
    line-height: 1.9;
    color: rgba(255,255,255,0.88);
  }

  .article-body h2 {
    font-size: 22px;
    font-weight: 700;
    color: #fff;
    margin: 36px 0 18px;
    padding-left: 14px;
    border-left: 3px solid #00C6FF;
    line-height: 1.4;
  }

  .article-body h3 {
    font-size: 18px;
    font-weight: 600;
    color: #fff;
    margin: 28px 0 14px;
  }

  .article-body p {
    margin-bottom: 16px;
  }

  .article-body a {
    color: #00C6FF;
    text-decoration: none;
    border-bottom: 1px solid rgba(0,198,255,0.3);
    transition: all 0.25s ease;
  }

  .article-body a:hover {
    border-bottom-color: #00C6FF;
    color: #fff;
  }

  .article-body ul,
  .article-body ol {
    margin: 16px 0 20px;
    padding-left: 24px;
  }

  .article-body li {
    margin-bottom: 8px;
  }

  .article-body blockquote {
    border-left: 3px solid rgba(255,255,255,0.25);
    background: rgba(255,255,255,0.04);
    padding: 20px 24px;
    border-radius: 0 16px 16px 0;
    margin: 24px 0;
    color: rgba(255,255,255,0.75);
    font-style: italic;
  }

  .article-body code {
    font-family: 'Roboto Mono', monospace;
    background: rgba(0,0,0,0.4);
    border: 1px solid rgba(255,255,255,0.1);
    padding: 2px 8px;
    border-radius: 6px;
    font-size: 14px;
    color: #00C6FF;
  }

  .article-body pre {
    background: #0A0F1A;
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 16px;
    padding: 24px;
    overflow-x: auto;
    margin: 24px 0;
  }

  .article-body pre code {
    color: #E0E8F4;
    background: transparent;
    border: none;
    padding: 0;
    display: block;
    white-space: pre;
  }

  .article-body img {
    max-width: 100%;
    border-radius: 16px;
    margin: 24px 0;
    border: 1px solid rgba(255,255,255,0.1);
  }

  .article-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 24px 0;
  }

  .article-body th {
    background: rgba(0,198,255,0.1);
    color: #fff;
    font-weight: 600;
    padding: 12px 16px;
    border: 1px solid rgba(255,255,255,0.1);
  }

  .article-body td {
    padding: 12px 16px;
    border: 1px solid rgba(255,255,255,0.08);
    color: rgba(255,255,255,0.8);
  }

  .table-scroll {
    overflow-x: auto;
    margin: 24px 0;
  }

  .article-body .table-scroll table {
    margin: 0;
  }

  .article-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid rgba(255,255,255,0.06);
    gap: 16px;
    flex-wrap: wrap;
  }

  .article-nav a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: 12px;
    border: 1px solid rgba(255,255,255,0.1);
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    font-size: 14px;
    transition: all 0.25s ease;
    background: rgba(255,255,255,0.03);
  }

  .article-nav a:hover {
    border-color: rgba(0,198,255,0.5);
    color: #00C6FF;
    background: rgba(0,198,255,0.06);
    box-shadow: 0 0 15px rgba(0,198,255,0.1);
  }

  .article-nav a svg {
    width: 18px;
    height: 18px;
  }

  .related-section {
    margin-top: 48px;
  }

  .related-header {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    margin-bottom: 24px;
  }

  .related-header h2 {
    font-size: 22px;
    font-weight: 800;
    color: #fff;
    position: relative;
    padding-left: 16px;
  }

  .related-header h2::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 20px;
    background: linear-gradient(180deg, #00C6FF, #2F7BFF);
    border-radius: 2px;
  }

  .related-header a {
    color: rgba(255,255,255,0.6);
    font-size: 14px;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: all 0.25s ease;
  }

  .related-header a:hover {
    color: #00C6FF;
  }

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

  .related-card {
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.3s ease;
    display: block;
    text-decoration: none;
  }

  .related-card:hover {
    transform: translateY(-4px);
    border-color: rgba(255,255,255,0.18);
    box-shadow: 0 8px 30px rgba(47,123,255,0.12);
  }

  .related-card .related-cover {
    height: 140px;
    background: linear-gradient(135deg, #0E1527, #16223F);
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255,255,255,0.15);
    overflow: hidden;
  }

  .related-card .related-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }

  .related-card-body {
    padding: 16px 20px;
  }

  .related-card-body h3 {
    font-size: 15px;
    font-weight: 600;
    color: #F0F4FA;
    margin-bottom: 10px;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

  .related-card-meta {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 12px;
    color: rgba(255,255,255,0.4);
  }

  .related-card-meta .related-time {
    font-family: 'Roboto Mono', monospace;
  }

  .empty-state {
    background: rgba(255,255,255,0.02);
    border: 1px dashed rgba(255,255,255,0.15);
    border-radius: 20px;
    padding: 48px;
    text-align: center;
    color: rgba(255,255,255,0.5);
    font-size: 15px;
  }

  .empty-state a {
    display: inline-block;
    margin-top: 16px;
    padding: 10px 28px;
    border-radius: 12px;
    background: rgba(47,123,255,0.15);
    border: 1px solid rgba(47,123,255,0.3);
    color: #fff;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.25s ease;
  }

  .empty-state a:hover {
    background: rgba(47,123,255,0.3);
    box-shadow: 0 0 20px rgba(47,123,255,0.2);
  }

  .site-footer {
    background: rgba(5, 8, 14, 0.6);
    border-top: 1px solid rgba(255,255,255,0.05);
    padding: 60px 0 32px;
    margin-left: 0;
  }

  .footer-title {
    font-size: 15px;
    font-weight: 700;
    color: #F0F4FA;
    margin-bottom: 16px;
  }

  .footer-link {
    display: block;
    color: rgba(255,255,255,0.5);
    text-decoration: none;
    font-size: 14px;
    margin-bottom: 10px;
    transition: all 0.25s ease;
  }

  .footer-link:hover {
    color: #00C6FF;
    padding-left: 4px;
  }

  .text-sub {
    color: rgba(255,255,255,0.45);
  }

  .footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 32px;
    margin-top: 48px;
    border-top: 1px solid rgba(255,255,255,0.06);
    color: rgba(255,255,255,0.3);
    font-size: 13px;
    flex-wrap: wrap;
    gap: 12px;
  }

  @media (max-width: 1024px) {
    .related-grid {
      grid-template-columns: repeat(2, 1fr);
    }

    .article-layout {
      padding: 32px 24px 48px;
    }

    .article-body-wrap {
      padding: 28px;
    }
  }

  @media (max-width: 768px) {
    .sidebar {
      display: none;
    }

    .mobile-header {
      display: flex;
    }

    .main-content {
      margin-left: 0;
    }

    .drawer-overlay {
      display: block;
    }

    .article-layout {
      padding: 24px 16px 40px;
    }

    .article-header h1 {
      font-size: 24px;
    }

    .article-body-wrap {
      padding: 20px;
      border-radius: 16px;
    }

    .article-body {
      font-size: 15px;
      line-height: 1.85;
    }

    .related-grid {
      grid-template-columns: 1fr;
      gap: 16px;
    }

    .footer-bottom {
      flex-direction: column;
      align-items: flex-start;
      margin-top: 36px;
    }
  }

  @media (max-width: 640px) {
    .article-meta {
      gap: 12px;
    }

    .meta-item {
      font-size: 12px;
    }

    .article-nav {
      flex-direction: column;
      width: 100%;
    }

    .article-nav a {
      width: 100%;
      justify-content: center;
    }
  }

/* roulang page: category2 */
:root {
            --bg-primary: #090D16;
            --bg-secondary: #0E1527;
            --bg-panel: rgba(255, 255, 255, 0.04);
            --border-light: rgba(255, 255, 255, 0.08);
            --border-mid: rgba(255, 255, 255, 0.12);
            --primary: #2F7BFF;
            --cyan: #00C6FF;
            --orange: #FFAB5E;
            --success: #34D399;
            --text-title: #F0F4FF;
            --text-body: #B0BBD0;
            --text-sub: #7A86A1;
            --radius-lg: 20px;
            --radius-md: 16px;
            --shadow-glow: 0 0 30px rgba(47, 123, 255, 0.15);
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
            background: var(--bg-primary);
            color: var(--text-body);
            line-height: 1.75;
            font-size: 15px;
            overflow-x: hidden;
        }

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

        a {
            text-decoration: none;
            color: inherit;
            transition: all 0.25s ease;
        }

        button {
            font-family: inherit;
            cursor: pointer;
        }

        .container-cus {
            max-width: 1320px;
            margin: 0 auto;
            padding-left: 32px;
            padding-right: 32px;
        }

        .text-title {
            color: var(--text-title);
        }

        .text-sub {
            color: var(--text-sub);
        }

        .text-body {
            color: var(--text-body);
        }

        .glass-panel {
            background: var(--bg-panel);
            border: 1px solid var(--border-light);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-radius: var(--radius-lg);
        }

        .glow-btn {
            background: linear-gradient(135deg, #2F7BFF 0%, #00C6FF 100%);
            color: #fff;
            border: none;
            border-radius: 12px;
            font-weight: 700;
            padding: 12px 28px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: all 0.3s ease;
            box-shadow: 0 4px 24px rgba(47, 123, 255, 0.35);
        }

        .glow-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 32px rgba(0, 198, 255, 0.35);
            background: linear-gradient(135deg, #3d88ff 0%, #14d0ff 100%);
        }

        .glow-btn:focus {
            outline: none;
            box-shadow: 0 0 0 3px rgba(0, 198, 255, 0.4), 0 4px 24px rgba(47, 123, 255, 0.35);
        }

        .glass-btn {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-mid);
            color: var(--text-title);
            border-radius: 12px;
            font-weight: 600;
            padding: 12px 28px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: all 0.3s ease;
            backdrop-filter: blur(8px);
        }

        .glass-btn:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.2);
            transform: translateY(-2px);
        }

        .glass-btn:focus {
            outline: none;
            box-shadow: 0 0 0 3px rgba(0, 198, 255, 0.3);
        }

        .outline-btn {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: var(--text-body);
            border-radius: 10px;
            font-weight: 600;
            padding: 10px 22px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: all 0.25s ease;
        }

        .outline-btn:hover {
            border-color: var(--cyan);
            color: var(--cyan);
        }

        .outline-btn:focus {
            outline: none;
            box-shadow: 0 0 0 3px rgba(0, 198, 255, 0.25);
        }

        .badge-pill {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            background: rgba(47, 123, 255, 0.12);
            border: 1px solid rgba(47, 123, 255, 0.3);
            color: #8ab8ff;
            letter-spacing: 0.02em;
        }

        .badge-orange {
            background: rgba(255, 171, 94, 0.12);
            border-color: rgba(255, 171, 94, 0.35);
            color: #ffc08a;
        }

        .badge-cyan {
            background: rgba(0, 198, 255, 0.1);
            border-color: rgba(0, 198, 255, 0.3);
            color: #7ee0ff;
        }

        .badge-green {
            background: rgba(52, 211, 153, 0.12);
            border-color: rgba(52, 211, 153, 0.3);
            color: #6eecc0;
        }

        /* ========= App Shell 左侧导航 ========= */
        .app-shell {
            display: flex;
            min-height: 100vh;
        }

        .sidebar {
            width: 72px;
            background: rgba(10, 14, 23, 0.85);
            border-right: 1px solid rgba(255, 255, 255, 0.08);
            backdrop-filter: blur(18px);
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            z-index: 60;
            display: flex;
            flex-direction: column;
            transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            overflow: hidden;
            box-shadow: 4px 0 30px rgba(0, 0, 0, 0.3);
        }

        .sidebar:hover {
            width: 220px;
        }

        .sidebar .logo-area {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 24px 16px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            flex-shrink: 0;
        }

        .sidebar .logo-mark {
            min-width: 40px;
            height: 40px;
            background: linear-gradient(135deg, #2F7BFF, #00C6FF);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            color: #fff;
            font-size: 18px;
            box-shadow: 0 4px 16px rgba(47, 123, 255, 0.4);
            flex-shrink: 0;
        }

        .sidebar .logo-text {
            white-space: nowrap;
            color: #F0F4FF;
            font-weight: 700;
            font-size: 15px;
            opacity: 0;
            transition: opacity 0.3s;
        }

        .sidebar:hover .logo-text {
            opacity: 1;
        }

        .sidebar-nav {
            flex: 1;
            display: flex;
            flex-direction: column;
            padding: 16px 10px;
            gap: 6px;
            overflow-y: auto;
        }

        .sidebar-nav .nav-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 14px;
            border-radius: 12px;
            color: #7A86A1;
            font-weight: 500;
            white-space: nowrap;
            transition: all 0.25s;
            position: relative;
            border-left: 3px solid transparent;
        }

        .sidebar-nav .nav-item svg {
            width: 22px;
            height: 22px;
            flex-shrink: 0;
        }

        .sidebar-nav .nav-item:hover {
            background: rgba(255, 255, 255, 0.06);
            color: #B0BBD0;
        }

        .sidebar-nav .nav-item:hover svg {
            stroke: #00C6FF;
        }

        .sidebar-nav .nav-item.active {
            background: rgba(47, 123, 255, 0.12);
            border-left-color: #00C6FF;
            color: #F0F4FF;
        }

        .sidebar-nav .nav-item.active svg {
            stroke: #00C6FF;
        }

        .sidebar-nav .nav-text {
            opacity: 0;
            transition: opacity 0.3s;
            font-size: 14px;
        }

        .sidebar:hover .nav-text {
            opacity: 1;
        }

        .sidebar-bottom {
            padding: 16px 12px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .sidebar-bottom a {
            white-space: nowrap;
            font-size: 13px;
            font-weight: 600;
            padding: 8px 14px;
            border-radius: 10px;
            color: #B0BBD0;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .sidebar-bottom a:hover {
            background: rgba(255, 171, 94, 0.12);
            color: #FFAB5E;
        }

        .sidebar-bottom .bottom-text {
            opacity: 0;
            transition: opacity 0.3s;
        }

        .sidebar:hover .bottom-text {
            opacity: 1;
        }

        .main-content {
            flex: 1;
            margin-left: 72px;
            min-width: 0;
            display: flex;
            flex-direction: column;
        }

        /* ========= 移动端顶部栏 ========= */
        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 64px;
            background: rgba(9, 13, 22, 0.92);
            backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            z-index: 55;
            align-items: center;
            justify-content: space-between;
            padding: 0 20px;
        }

        .mobile-header .logo-mark-mobile {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, #2F7BFF, #00C6FF);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            color: #fff;
            font-size: 16px;
        }

        .mobile-header .brand-mobile {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            color: #F0F4FF;
            font-size: 15px;
        }

        .menu-toggle {
            background: none;
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: 10px;
            color: #F0F4FF;
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.25s;
        }

        .menu-toggle:hover {
            background: rgba(255, 255, 255, 0.08);
        }

        .drawer-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.6);
            z-index: 68;
        }

        .drawer-overlay.open {
            display: block;
        }

        .mobile-drawer {
            position: fixed;
            top: 0;
            left: -280px;
            width: 280px;
            bottom: 0;
            background: #0B101C;
            z-index: 70;
            transition: left 0.35s ease;
            padding: 24px 16px;
            box-shadow: 4px 0 40px rgba(0, 0, 0, 0.5);
            border-right: 1px solid rgba(255, 255, 255, 0.08);
            overflow-y: auto;
        }

        .mobile-drawer.open {
            left: 0;
        }

        .mobile-drawer .drawer-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 30px;
            padding-bottom: 16px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .mobile-drawer .drawer-header .brand-row {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .mobile-drawer .drawer-header .logo-mark-sm {
            width: 34px;
            height: 34px;
            background: linear-gradient(135deg, #2F7BFF, #00C6FF);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            color: #fff;
            font-size: 15px;
        }

        .mobile-drawer .drawer-header .brand-txt {
            color: #F0F4FF;
            font-weight: 700;
            font-size: 14px;
        }

        .drawer-close {
            background: none;
            border: none;
            color: #7A86A1;
            font-size: 20px;
            cursor: pointer;
            width: 32px;
            height: 32px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .drawer-close:hover {
            background: rgba(255, 255, 255, 0.08);
            color: #F0F4FF;
        }

        .mobile-drawer .drawer-nav {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .mobile-drawer .drawer-nav a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 14px;
            border-radius: 12px;
            color: #7A86A1;
            font-weight: 500;
            font-size: 15px;
            transition: all 0.2s;
        }

        .mobile-drawer .drawer-nav a svg {
            width: 20px;
            height: 20px;
        }

        .mobile-drawer .drawer-nav a:hover {
            background: rgba(255, 255, 255, 0.06);
            color: #B0BBD0;
        }

        .mobile-drawer .drawer-nav a.active {
            background: rgba(47, 123, 255, 0.12);
            color: #F0F4FF;
            border-left: 3px solid #00C6FF;
        }

        body.drawer-open {
            overflow: hidden;
        }

        /* ========= 分类页 Hero ========= */
        .category-hero {
            position: relative;
            padding: 100px 0 70px;
            background: linear-gradient(180deg, #0D1428 0%, #090D16 100%);
            overflow: hidden;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(47, 123, 255, 0.15) 0%, transparent 70%);
            pointer-events: none;
        }

        .category-hero::after {
            content: '';
            position: absolute;
            bottom: -40%;
            left: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(0, 198, 255, 0.1) 0%, transparent 70%);
            pointer-events: none;
        }

        .grid-pattern {
            position: absolute;
            inset: 0;
            background-image:
                linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
            background-size: 32px 32px;
            pointer-events: none;
        }

        .category-hero .hero-inner {
            position: relative;
            z-index: 2;
            max-width: 840px;
            margin: 0 auto;
            text-align: center;
        }

        .category-hero .hero-badge-row {
            display: flex;
            justify-content: center;
            gap: 12px;
            margin-bottom: 24px;
            flex-wrap: wrap;
        }

        .category-hero h1 {
            font-size: 42px;
            font-weight: 800;
            color: #F0F4FF;
            line-height: 1.3;
            letter-spacing: -0.01em;
            margin-bottom: 20px;
        }

        .category-hero h1 .grad-text {
            background: linear-gradient(135deg, #2F7BFF, #00C6FF);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            display: inline-block;
        }

        .category-hero .hero-sub {
            font-size: 17px;
            color: #B0BBD0;
            line-height: 1.8;
            max-width: 720px;
            margin: 0 auto 32px;
        }

        .hero-stats-row {
            display: flex;
            justify-content: center;
            gap: 40px;
            margin-top: 36px;
            flex-wrap: wrap;
        }

        .hero-stat-item {
            text-align: center;
        }

        .hero-stat-item .num {
            font-family: 'Roboto Mono', monospace;
            font-size: 26px;
            font-weight: 700;
            color: #F0F4FF;
            display: block;
            font-variant-numeric: tabular-nums;
        }

        .hero-stat-item .label {
            font-size: 13px;
            color: #7A86A1;
            margin-top: 4px;
        }

        /* ========= 图文交错区 ========= */
        .feature-rows {
            padding: 90px 0 30px;
        }

        .feature-row-item {
            display: flex;
            align-items: center;
            gap: 60px;
            margin-bottom: 80px;
        }

        .feature-row-item.reverse {
            flex-direction: row-reverse;
        }

        .feature-row-item .feature-img {
            flex: 1;
            border-radius: 24px;
            overflow: hidden;
            position: relative;
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
            background: #0E1527;
            border: 1px solid rgba(255, 255, 255, 0.06);
        }

        .feature-row-item .feature-img img {
            width: 100%;
            height: 100%;
            min-height: 320px;
            object-fit: cover;
        }

        .feature-row-item .feature-text {
            flex: 1;
            padding: 20px 0;
        }

        .feature-row-item .feature-text .tag-row {
            display: flex;
            gap: 8px;
            margin-bottom: 16px;
            flex-wrap: wrap;
        }

        .feature-row-item .feature-text h2 {
            font-size: 26px;
            font-weight: 800;
            color: #F0F4FF;
            margin-bottom: 16px;
            line-height: 1.4;
        }

        .feature-row-item .feature-text p {
            color: #B0BBD0;
            font-size: 15px;
            line-height: 1.8;
            margin-bottom: 20px;
        }

        .feature-point-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .feature-point-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            color: #B0BBD0;
            font-size: 14px;
        }

        .feature-point-list li i {
            color: #00C6FF;
            font-size: 14px;
            margin-top: 4px;
        }

        /* ========= 特性矩阵区 ========= */
        .capability-section {
            padding: 70px 0 80px;
        }

        .section-head {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 50px;
        }

        .section-head .section-kicker {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            color: #00C6FF;
            letter-spacing: 0.04em;
            margin-bottom: 12px;
            text-transform: uppercase;
        }

        .section-head .section-kicker i {
            font-size: 14px;
        }

        .section-head h2 {
            font-size: 32px;
            font-weight: 800;
            color: #F0F4FF;
            line-height: 1.35;
            margin-bottom: 14px;
        }

        .section-head p {
            color: #7A86A1;
            font-size: 15px;
            line-height: 1.75;
        }

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

        .capability-card {
            padding: 28px 26px;
            border-radius: 20px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            backdrop-filter: blur(12px);
            transition: all 0.35s ease;
            position: relative;
            overflow: hidden;
        }

        .capability-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, #2F7BFF, #00C6FF);
            opacity: 0;
            transition: opacity 0.3s;
        }

        .capability-card:hover {
            transform: translateY(-4px);
            border-color: rgba(255, 255, 255, 0.2);
            box-shadow: 0 12px 40px rgba(47, 123, 255, 0.12);
        }

        .capability-card:hover::before {
            opacity: 1;
        }

        .capability-card .cap-icon {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            background: linear-gradient(135deg, rgba(47, 123, 255, 0.2), rgba(0, 198, 255, 0.1));
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
            color: #00C6FF;
            font-size: 20px;
        }

        .capability-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: #F0F4FF;
            margin-bottom: 10px;
        }

        .capability-card p {
            font-size: 14px;
            color: #7A86A1;
            line-height: 1.7;
            margin: 0;
        }

        /* ========= 接入流程区 ========= */
        .process-section {
            padding: 30px 0 80px;
        }

        .process-steps {
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            position: relative;
            gap: 20px;
        }

        .process-steps::before {
            content: '';
            position: absolute;
            top: 30px;
            left: 8%;
            right: 8%;
            height: 1px;
            background: linear-gradient(90deg, #2F7BFF, #00C6FF, rgba(255, 255, 255, 0.08));
            opacity: 0.5;
        }

        .process-step {
            flex: 1;
            text-align: center;
            position: relative;
            z-index: 1;
        }

        .process-step .step-circle {
            width: 60px;
            height: 60px;
            margin: 0 auto 20px;
            border-radius: 50%;
            background: #0E1527;
            border: 2px solid rgba(47, 123, 255, 0.4);
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: 'Roboto Mono', monospace;
            font-size: 18px;
            font-weight: 700;
            color: #2F7BFF;
            box-shadow: 0 0 30px rgba(47, 123, 255, 0.2);
        }

        .process-step .step-circle.highlight {
            border-color: #00C6FF;
            color: #00C6FF;
            box-shadow: 0 0 40px rgba(0, 198, 255, 0.25);
        }

        .process-step h3 {
            font-size: 16px;
            font-weight: 700;
            color: #F0F4FF;
            margin-bottom: 8px;
        }

        .process-step p {
            font-size: 13px;
            color: #7A86A1;
            line-height: 1.65;
            max-width: 180px;
            margin: 0 auto;
        }

        /* ========= CTA 横幅 ========= */
        .cta-banner {
            padding: 20px 0 70px;
        }

        .cta-inner-card {
            position: relative;
            padding: 50px 60px;
            border-radius: 28px;
            background: linear-gradient(135deg, rgba(47, 123, 255, 0.15), rgba(0, 198, 255, 0.06)), #0E1527;
            border: 1px solid rgba(47, 123, 255, 0.2);
            overflow: hidden;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 40px;
        }

        .cta-inner-card::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -10%;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(0, 198, 255, 0.12) 0%, transparent 70%);
            border-radius: 50%;
        }

        .cta-inner-card .cta-content {
            position: relative;
            z-index: 1;
        }

        .cta-inner-card .cta-content h2 {
            font-size: 28px;
            font-weight: 800;
            color: #F0F4FF;
            margin-bottom: 14px;
        }

        .cta-inner-card .cta-content p {
            color: #B0BBD0;
            font-size: 15px;
            max-width: 520px;
            margin: 0;
        }

        .cta-inner-card .cta-actions {
            position: relative;
            z-index: 1;
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        /* ========= FAQ ========= */
        .faq-section {
            padding: 30px 0 80px;
        }

        .faq-container {
            max-width: 840px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .faq-item {
            border-radius: 16px;
            overflow: hidden;
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.07);
            transition: border-color 0.3s;
        }

        .faq-item:hover {
            border-color: rgba(255, 255, 255, 0.14);
        }

        .faq-item summary {
            padding: 20px 24px;
            cursor: pointer;
            font-weight: 600;
            color: #D0DAEA;
            font-size: 15px;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: color 0.3s;
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary::after {
            content: '+';
            font-size: 20px;
            color: #7A86A1;
            transition: transform 0.3s;
            font-weight: 400;
            margin-left: 16px;
        }

        .faq-item details[open] summary {
            color: #F0F4FF;
        }

        .faq-item details[open] summary::after {
            transform: rotate(45deg);
            color: #00C6FF;
        }

        .faq-item .faq-answer {
            padding: 0 24px 20px;
            color: #7A86A1;
            font-size: 14px;
            line-height: 1.75;
        }

        /* ========= 页脚 ========= */
        .site-footer {
            background: #070B13;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding: 60px 0 28px;
        }

        .site-footer .footer-title {
            font-size: 14px;
            font-weight: 700;
            color: #F0F4FF;
            margin-bottom: 16px;
            letter-spacing: 0.03em;
        }

        .site-footer .footer-link {
            display: block;
            color: #7A86A1;
            font-size: 14px;
            padding: 5px 0;
            transition: all 0.25s;
            line-height: 1.8;
        }

        .site-footer .footer-link:hover {
            color: #00C6FF;
            padding-left: 4px;
        }

        .site-footer .logo-mark {
            min-width: 38px;
            height: 38px;
            background: linear-gradient(135deg, #2F7BFF, #00C6FF);
            border-radius: 11px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            color: #fff;
            font-size: 16px;
            box-shadow: 0 4px 16px rgba(47, 123, 255, 0.3);
        }

        .footer-bottom {
            margin-top: 40px;
            padding-top: 22px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
        }

        .footer-bottom span {
            font-size: 13px;
            color: #5A6678;
        }

        /* ========= 响应式断点 ========= */
        @media screen and (max-width: 1280px) {
            .container-cus {
                padding-left: 24px;
                padding-right: 24px;
            }

            .capability-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .feature-row-item {
                gap: 40px;
            }
        }

        @media screen and (max-width: 1024px) {
            .sidebar {
                display: none;
            }

            .main-content {
                margin-left: 0;
            }

            .mobile-header {
                display: flex;
            }

            .category-hero {
                padding-top: 120px;
            }

            .feature-row-item,
            .feature-row-item.reverse {
                flex-direction: column;
                gap: 30px;
            }

            .feature-row-item .feature-text {
                padding: 0;
            }

            .process-steps {
                flex-direction: column;
                align-items: center;
                gap: 30px;
            }

            .process-steps::before {
                display: none;
            }

            .cta-inner-card {
                flex-direction: column;
                padding: 40px 30px;
                text-align: center;
            }

            .cta-inner-card .cta-actions {
                justify-content: center;
            }
        }

        @media screen and (max-width: 768px) {
            .container-cus {
                padding-left: 18px;
                padding-right: 18px;
            }

            .category-hero h1 {
                font-size: 30px;
            }

            .category-hero .hero-sub {
                font-size: 15px;
            }

            .hero-stats-row {
                gap: 24px;
            }

            .hero-stat-item .num {
                font-size: 22px;
            }

            .capability-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }

            .section-head h2 {
                font-size: 26px;
            }

            .cta-inner-card {
                padding: 30px 24px;
                border-radius: 20px;
            }

            .cta-inner-card .cta-content h2 {
                font-size: 22px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media screen and (max-width: 520px) {
            .category-hero {
                padding: 100px 0 50px;
            }

            .category-hero h1 {
                font-size: 26px;
                line-height: 1.35;
            }

            .category-hero .hero-badge-row {
                gap: 8px;
            }

            .badge-pill {
                font-size: 12px;
                padding: 4px 10px;
            }

            .feature-row-item {
                margin-bottom: 50px;
            }

            .feature-row-item .feature-text h2 {
                font-size: 22px;
            }

            .process-step {
                max-width: 260px;
            }

            .cta-inner-card .cta-actions .glow-btn,
            .cta-inner-card .cta-actions .glass-btn {
                width: 100%;
                justify-content: center;
            }
        }

        @media (hover: hover) {
            .faq-item summary:hover {
                color: #F0F4FF;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #2F7BFF;
            --cyan: #00C6FF;
            --orange: #FFAB5E;
            --green: #34D399;
            --bg-deep: #090D16;
            --bg-card: #0E1527;
            --text-main: #F0F4FF;
            --text-sub: #94A3C0;
            --text-mute: #64748B;
            --glass-bg: rgba(255, 255, 255, 0.04);
            --glass-border: rgba(255, 255, 255, 0.08);
            --radius-lg: 24px;
            --radius-md: 16px;
            --shadow-glow: 0 0 40px rgba(47, 123, 255, 0.15);
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background: var(--bg-deep);
            color: var(--text-main);
            font-family: 'Noto Sans SC', system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
            font-size: 15px;
            line-height: 1.75;
            overflow-x: hidden;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        img {
            max-width: 100%;
            height: auto;
        }
        input,
        textarea,
        select,
        button {
            font-family: inherit;
        }
        .container-cus {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .app-shell {
            display: flex;
            min-height: 100vh;
        }

        /* ===== Sidebar ===== */
        .sidebar {
            position: fixed;
            left: 0;
            top: 0;
            bottom: 0;
            width: 72px;
            background: rgba(10, 14, 23, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-right: 1px solid rgba(255, 255, 255, 0.08);
            z-index: 40;
            display: flex;
            flex-direction: column;
            padding: 16px 10px;
            transition: width .3s ease;
            overflow: hidden;
        }
        .sidebar:hover {
            width: 220px;
        }
        .sidebar .nav-text {
            opacity: 0;
            white-space: nowrap;
            transition: opacity .25s ease;
        }
        .sidebar:hover .nav-text {
            opacity: 1;
        }
        .sidebar-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 6px 8px;
            border-radius: 12px;
            min-height: 44px;
            flex-shrink: 0;
        }
        .logo-mark {
            width: 34px;
            height: 34px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary), var(--cyan));
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 16px;
            color: #fff;
            flex-shrink: 0;
            box-shadow: 0 0 20px rgba(47, 123, 255, 0.35);
        }
        .sidebar-nav {
            display: flex;
            flex-direction: column;
            gap: 6px;
            margin-top: 24px;
        }
        .nav-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 11px 10px;
            border-radius: 12px;
            color: rgba(255, 255, 255, 0.6);
            transition: all .2s ease;
            position: relative;
            font-size: 14px;
            font-weight: 500;
            white-space: nowrap;
        }
        .nav-item:hover {
            background: rgba(255, 255, 255, 0.06);
            color: #fff;
        }
        .nav-item.active {
            background: rgba(47, 123, 255, 0.12);
            color: #fff;
        }
        .nav-item.active::before {
            content: '';
            position: absolute;
            left: -10px;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 22px;
            border-radius: 0 3px 3px 0;
            background: var(--cyan);
        }
        .nav-item svg {
            width: 22px;
            height: 22px;
            flex-shrink: 0;
        }
        .nav-item:focus-visible {
            outline: 2px solid var(--cyan);
            outline-offset: 2px;
        }
        .sidebar-bottom {
            margin-top: auto;
        }

        /* ===== Mobile Topbar / Drawer ===== */
        .mobile-topbar {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: rgba(10, 14, 23, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            z-index: 45;
            padding: 0 16px;
            align-items: center;
            justify-content: space-between;
        }
        .mobile-drawer {
            position: fixed;
            left: 0;
            top: 0;
            bottom: 0;
            width: 250px;
            background: rgba(10, 14, 23, 0.96);
            backdrop-filter: blur(24px);
            -webkit-backdrop-filter: blur(24px);
            border-right: 1px solid rgba(255, 255, 255, 0.08);
            z-index: 60;
            transform: translateX(-100%);
            transition: transform .3s ease;
            padding: 16px;
            display: flex;
            flex-direction: column;
        }
        .mobile-drawer.open {
            transform: translateX(0);
        }
        .mobile-drawer .nav-text {
            opacity: 1;
            white-space: normal;
        }
        .drawer-overlay {
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.6);
            z-index: 55;
            opacity: 0;
            pointer-events: none;
            transition: opacity .3s;
        }
        .drawer-overlay.show {
            opacity: 1;
            pointer-events: auto;
        }
        .no-scroll {
            overflow: hidden;
        }

        /* ===== Main Content ===== */
        .main-content {
            margin-left: 72px;
            flex: 1;
            min-width: 0;
            padding: 0 28px;
        }

        /* ===== Buttons ===== */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), var(--cyan));
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            border: none;
            cursor: pointer;
            transition: all .25s ease;
            box-shadow: 0 4px 24px rgba(47, 123, 255, 0.3);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(0, 198, 255, 0.35);
        }
        .btn-primary:focus-visible {
            outline: 2px solid var(--cyan);
            outline-offset: 2px;
        }
        .btn-ghost {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: 12px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            color: #F0F4FF;
            font-weight: 500;
            font-size: 15px;
            cursor: pointer;
            transition: all .25s ease;
            backdrop-filter: blur(10px);
        }
        .btn-ghost:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.25);
        }
        .btn-ghost:focus-visible {
            outline: 2px solid var(--cyan);
            outline-offset: 2px;
        }

        /* ===== Glass Card ===== */
        .glass-card {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-lg);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            transition: all .3s ease;
        }
        .glass-card:hover {
            transform: translateY(-4px);
            border-color: rgba(255, 255, 255, 0.2);
            box-shadow: 0 12px 40px rgba(47, 123, 255, 0.12);
        }

        /* ===== Hero ===== */
        .hero-section {
            position: relative;
            padding: 80px 0 64px;
            overflow: hidden;
            background: linear-gradient(180deg, #0B1226 0%, #090D16 100%);
        }
        .hero-bg-img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            object-position: center 30%;
            opacity: 0.28;
        }
        .hero-grid-overlay {
            position: absolute;
            inset: 0;
            background-image: linear-gradient(rgba(47, 123, 255, 0.07) 1px, transparent 1px), linear-gradient(90deg, rgba(47, 123, 255, 0.07) 1px, transparent 1px);
            background-size: 42px 42px;
            mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, #000 40%, transparent 100%);
            -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, #000 40%, transparent 100%);
        }
        .hero-glow {
            position: absolute;
            width: 320px;
            height: 320px;
            background: radial-gradient(circle, rgba(0, 198, 255, 0.25) 0%, transparent 70%);
            top: -80px;
            right: 8%;
            filter: blur(40px);
            animation: floatSoft 6s ease-in-out infinite;
        }
        .hero-glow-two {
            position: absolute;
            width: 240px;
            height: 240px;
            background: radial-gradient(circle, rgba(47, 123, 255, 0.2) 0%, transparent 70%);
            bottom: 0;
            left: 30%;
            filter: blur(60px);
        }
        @keyframes floatSoft {
            0%,
            100% {
                transform: translateY(0);
            }
            50% {
                transform: translateY(-14px);
            }
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 5px 14px;
            border-radius: 999px;
            background: rgba(0, 198, 255, 0.1);
            border: 1px solid rgba(0, 198, 255, 0.25);
            color: var(--cyan);
            font-size: 13px;
            font-weight: 500;
            margin-bottom: 20px;
        }
        .hero-title {
            font-size: clamp(30px, 4.4vw, 46px);
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -0.01em;
            margin-bottom: 16px;
        }
        .hero-title .text-gradient {
            background: linear-gradient(90deg, var(--primary), var(--cyan));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .hero-sub {
            font-size: 16px;
            color: var(--text-sub);
            max-width: 520px;
            margin-bottom: 28px;
            line-height: 1.8;
        }
        .hero-ctas {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 40px;
        }
        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 28px;
            padding-top: 28px;
            border-top: 1px solid rgba(255, 255, 255, 0.07);
        }
        .hero-stats .stat-block {
            display: flex;
            flex-direction: column;
        }
        .stat-num {
            font-size: 24px;
            font-weight: 700;
            color: #fff;
            font-variant-numeric: tabular-nums;
        }
        .stat-label {
            font-size: 13px;
            color: var(--text-mute);
        }

        /* Mock Login Panel */
        .mock-login-panel {
            background: rgba(14, 21, 39, 0.75);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 20px;
            padding: 28px;
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45), 0 0 60px rgba(47, 123, 255, 0.08);
            position: relative;
            overflow: hidden;
        }
        .mock-login-panel::before {
            content: '';
            position: absolute;
            top: 0;
            left: 20%;
            right: 20%;
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--cyan), transparent);
        }
        .mock-input {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 16px;
            border-radius: 12px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 14px;
            color: var(--text-main);
            margin-bottom: 12px;
        }
        .mock-login-btn {
            margin-top: 16px;
            padding: 12px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), var(--cyan));
            color: #fff;
            text-align: center;
            font-weight: 600;
            font-size: 14px;
            letter-spacing: 0.1em;
            box-shadow: 0 4px 20px rgba(47, 123, 255, 0.3);
        }

        /* ===== Section ===== */
        .section-block {
            padding: 48px 0 16px;
        }
        .section-head {
            margin-bottom: 36px;
        }
        .section-title {
            font-size: clamp(22px, 2.8vw, 30px);
            font-weight: 800;
            line-height: 1.35;
            margin-bottom: 8px;
        }
        .section-subtitle {
            color: var(--text-sub);
            font-size: 15px;
            max-width: 620px;
            line-height: 1.75;
        }
        .section-title-line {
            width: 42px;
            height: 4px;
            border-radius: 3px;
            background: linear-gradient(90deg, var(--primary), var(--cyan));
            margin-bottom: 18px;
        }

        /* ===== Tags ===== */
        .tag-pill {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 3px 12px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 500;
            background: rgba(0, 198, 255, 0.08);
            color: var(--cyan);
            border: 1px solid rgba(0, 198, 255, 0.2);
        }
        .tag-orange {
            background: rgba(255, 171, 94, 0.08);
            color: var(--orange);
            border-color: rgba(255, 171, 94, 0.25);
        }
        .tag-green {
            background: rgba(52, 211, 153, 0.08);
            color: var(--green);
            border-color: rgba(52, 211, 153, 0.25);
        }

        /* ===== Feature Cards ===== */
        .feature-card {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.07);
            border-radius: 18px;
            padding: 24px;
            transition: all .3s ease;
        }
        .feature-card:hover {
            background: rgba(255, 255, 255, 0.05);
            border-color: rgba(0, 198, 255, 0.25);
            transform: translateY(-4px);
        }
        .feature-icon {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(47, 123, 255, 0.12);
            color: var(--cyan);
            font-size: 18px;
            margin-bottom: 14px;
        }
        .feature-card h3 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .feature-card p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.7;
        }

        /* ===== Steps ===== */
        .step-card {
            position: relative;
            text-align: center;
            padding: 28px 20px;
            background: rgba(255, 255, 255, 0.035);
            border: 1px solid rgba(255, 255, 255, 0.07);
            border-radius: 20px;
            transition: all .3s ease;
        }
        .step-card:hover {
            border-color: rgba(0, 198, 255, 0.3);
            transform: translateY(-4px);
            box-shadow: 0 12px 40px rgba(47, 123, 255, 0.1);
        }
        .step-num {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--cyan));
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 16px;
            color: #fff;
            margin: 0 auto 14px;
            box-shadow: 0 4px 16px rgba(47, 123, 255, 0.35);
        }
        .step-card h3 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 4px;
        }
        .step-card p {
            font-size: 13px;
            color: var(--text-sub);
        }

        /* ===== CTA Banner ===== */
        .cta-banner {
            position: relative;
            overflow: hidden;
            padding: 48px 48px;
            border-radius: 24px;
            background: linear-gradient(135deg, #0E1527 0%, #101D38 100%);
            border: 1px solid rgba(255, 171, 94, 0.22);
        }
        .cta-banner::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -10%;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(255, 171, 94, 0.14) 0%, transparent 65%);
            filter: blur(30px);
            border-radius: 50%;
        }
        .cta-banner::after {
            content: '';
            position: absolute;
            bottom: -50%;
            left: 20%;
            width: 240px;
            height: 240px;
            background: radial-gradient(circle, rgba(47, 123, 255, 0.18) 0%, transparent 70%);
            filter: blur(40px);
            border-radius: 50%;
        }
        .cta-banner .content {
            position: relative;
            z-index: 1;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }
        .cta-banner h2 {
            font-size: 22px;
            font-weight: 800;
            margin-bottom: 6px;
        }
        .cta-banner p {
            color: var(--text-sub);
            font-size: 14px;
            max-width: 480px;
        }

        /* ===== FAQ ===== */
        .faq-item {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.07);
            border-radius: 14px;
            padding: 6px 20px;
            margin-bottom: 12px;
            transition: border-color .2s ease;
        }
        .faq-item:hover {
            border-color: rgba(0, 198, 255, 0.2);
        }
        .faq-item summary {
            font-weight: 600;
            font-size: 15px;
            padding: 14px 0;
            cursor: pointer;
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            transition: color .2s;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary::after {
            content: '+';
            font-size: 22px;
            color: var(--cyan);
            transition: transform .3s ease;
            line-height: 1;
        }
        .faq-item details[open] summary::after {
            transform: rotate(45deg);
        }
        .faq-item summary:hover {
            color: var(--cyan);
        }
        .faq-item p {
            padding-bottom: 16px;
            color: var(--text-sub);
            font-size: 14px;
            line-height: 1.75;
            max-width: 760px;
        }

        /* ===== Form ===== */
        .form-control {
            width: 100%;
            padding: 12px 16px;
            border-radius: 12px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.09);
            color: var(--text-main);
            font-size: 14px;
            transition: border-color .2s, background .2s;
        }
        .form-control::placeholder {
            color: var(--text-mute);
        }
        .form-control:focus {
            outline: none;
            border-color: rgba(0, 198, 255, 0.5);
            background: rgba(255, 255, 255, 0.06);
        }
        select.form-control {
            appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%2394A3C0' d='M6 8L0 0h12z'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 16px center;
            padding-right: 40px;
        }

        /* ===== Footer ===== */
        .site-footer {
            margin-top: 80px;
            padding: 48px 0 28px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            background: rgba(4, 7, 12, 0.7);
        }
        .footer-title {
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-link {
            display: block;
            color: var(--text-sub);
            font-size: 14px;
            padding: 4px 0;
            transition: color .2s, padding-left .2s;
        }
        .footer-link:hover {
            color: var(--cyan);
            padding-left: 3px;
        }
        .footer-bottom {
            margin-top: 36px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
            color: var(--text-mute);
            font-size: 13px;
        }

        /* ===== Image Cards ===== */
        .split-card {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
            margin-bottom: 56px;
        }
        .split-card.reverse .img-wrap {
            order: 2;
        }
        .split-card.reverse .text-wrap {
            order: 1;
        }
        .img-wrap {
            border-radius: 20px;
            overflow: hidden;
            position: relative;
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
        }
        .img-wrap img {
            width: 100%;
            height: 280px;
            object-fit: cover;
            display: block;
        }
        .img-wrap::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 55%, rgba(9, 13, 22, 0.45));
        }
        .text-wrap h3 {
            font-size: 20px;
            font-weight: 800;
            margin-bottom: 10px;
        }
        .text-wrap p {
            color: var(--text-sub);
            font-size: 15px;
            line-height: 1.8;
            margin-bottom: 16px;
            max-width: 560px;
        }
        .tag-row {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1279px) {
            .split-card {
                gap: 28px;
            }
            .hero-section {
                padding: 64px 0 48px;
            }
        }
        @media (max-width: 1023px) {
            .sidebar {
                display: none;
            }
            .main-content {
                margin-left: 0;
                padding: 0 20px;
            }
            .mobile-topbar {
                display: flex;
            }
            .main-content {
                padding-top: 76px;
            }
            .hero-section {
                padding-top: 48px;
            }
            .split-card,
            .split-card.reverse {
                grid-template-columns: 1fr;
            }
            .split-card.reverse .img-wrap {
                order: 1;
            }
            .split-card.reverse .text-wrap {
                order: 2;
            }
            .cta-banner {
                padding: 32px 24px;
            }
        }
        @media (max-width: 767px) {
            .container-cus {
                padding: 0 16px;
            }
            .main-content {
                padding: 72px 14px 0;
            }
            .hero-section {
                padding: 40px 0 40px;
            }
            .hero-title {
                font-size: 26px;
            }
            .hero-ctas {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-ctas .btn-primary,
            .hero-ctas .btn-ghost {
                width: 100%;
            }
            .hero-stats {
                gap: 16px;
            }
            .section-block {
                padding: 36px 0 8px;
            }
            .split-card .img-wrap img {
                height: 220px;
            }
            .cta-banner .content {
                flex-direction: column;
                align-items: flex-start;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: center;
                text-align: center;
            }
        }
        @media (max-width: 520px) {
            .hero-stats .stat-block {
                flex: 1;
            }
            .stat-num {
                font-size: 20px;
            }
            .stat-label {
                font-size: 12px;
            }
        }