/* roulang page: index */
:root {
    --primary: #0e1a2b;
    --primary-light: #16263c;
    --primary-soft: #1e3350;
    --accent: #e8a33d;
    --accent-light: #f2c064;
    --accent-dark: #c9821f;
    --bg: #f4f6f9;
    --card-bg: #ffffff;
    --text: #1a2332;
    --text-weak: #64748b;
    --text-light: #94a3b8;
    --border: #e6ebf2;
    --success: #2fbf8f;
    --radius-sm: 10px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --shadow-sm: 0 2px 10px rgba(14, 26, 43, 0.05);
    --shadow-md: 0 8px 24px rgba(14, 26, 43, 0.08);
    --shadow-lg: 0 18px 44px rgba(14, 26, 43, 0.13);
    --transition: 0.3s ease;
    --container: 1200px;
  }

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

  html {
    scroll-behavior: smooth;
  }

  body {
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    line-height: 1.6;
    background: var(--bg);
    color: var(--text);
    -webkit-font-smoothing: antialiased;
  }

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

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

  button,
  input {
    font-family: inherit;
    border: none;
    outline: none;
    background: none;
  }

  ul,
  ol {
    list-style: none;
  }

  .container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 24px;
  }

  .section {
    padding: 96px 0;
  }

  .section--white {
    background: #fff;
  }

  .section--gray {
    background: var(--bg);
  }

  .section-header {
    text-align: center;
    max-width: 680px;
    margin: 0 auto 56px;
  }

  .section-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    border-radius: 999px;
    background: rgba(232, 163, 61, 0.12);
    color: var(--accent-dark);
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.5px;
    margin-bottom: 18px;
  }

  .section-title {
    font-size: clamp(28px, 3.4vw, 40px);
    font-weight: 800;
    letter-spacing: -0.5px;
    color: var(--primary);
    line-height: 1.25;
    margin-bottom: 16px;
  }

  .section-desc {
    font-size: 16px;
    color: var(--text-weak);
    line-height: 1.75;
  }

  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 30px;
    border-radius: 999px;
    font-size: 15px;
    font-weight: 700;
    border: 2px solid transparent;
    cursor: pointer;
    transition: all 0.3s ease;
    letter-spacing: 0.3px;
  }

  .btn-primary {
    background: var(--accent);
    color: #fff;
    box-shadow: 0 4px 16px rgba(232, 163, 61, 0.35);
  }

  .btn-primary:hover {
    background: var(--accent-light);
    transform: translateY(-3px);
    box-shadow: 0 10px 26px rgba(232, 163, 61, 0.42);
  }

  .btn-primary:active {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(232, 163, 61, 0.3);
  }

  .btn-outline {
    border-color: rgba(255, 255, 255, 0.65);
    color: #fff;
    background: transparent;
  }

  .btn-outline:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: #fff;
    transform: translateY(-3px);
  }

  .btn-outline:active {
    transform: translateY(-1px);
    background: rgba(255, 255, 255, 0.08);
  }

  .btn-dark {
    background: var(--primary);
    color: #fff;
  }

  .btn-dark:hover {
    background: var(--primary-soft);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
  }

  .btn:focus-visible {
    outline: 3px solid rgba(232, 163, 61, 0.5);
    outline-offset: 2px;
  }

  .badge {
    display: inline-flex;
    align-items: center;
    padding: 5px 12px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 600;
  }

  .badge-accent {
    background: rgba(232, 163, 61, 0.14);
    color: var(--accent-dark);
  }

  .badge-blue {
    background: rgba(14, 26, 43, 0.08);
    color: var(--primary);
  }

  /* ===== Header ===== */
  .site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid rgba(230, 235, 242, 0.8);
    box-shadow: 0 2px 16px rgba(14, 26, 43, 0.04);
  }

  .header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    position: relative;
  }

  .nav-left,
  .nav-right {
    display: flex;
    align-items: center;
    gap: 8px;
    flex: 1;
  }

  .nav-right {
    justify-content: flex-end;
  }

  .brand-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 22px;
    font-weight: 800;
    color: var(--primary);
    letter-spacing: 0.3px;
    padding: 8px 16px;
    border-radius: 12px;
    transition: opacity 0.3s ease;
    white-space: nowrap;
  }

  .brand-logo:hover {
    opacity: 0.85;
  }

  .logo-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--accent), var(--accent-light));
    color: #0e1a2b;
    font-size: 15px;
    font-weight: 900;
    letter-spacing: -0.5px;
    box-shadow: 0 4px 12px rgba(232, 163, 61, 0.35);
  }

  .nav-link {
    display: inline-flex;
    align-items: center;
    padding: 9px 18px;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 600;
    color: var(--text);
    transition: all 0.3s ease;
    position: relative;
  }

  .nav-link:hover {
    color: var(--accent-dark);
    background: rgba(232, 163, 61, 0.08);
  }

  .nav-link.active {
    color: var(--accent-dark);
    background: rgba(232, 163, 61, 0.12);
  }

  .nav-link::after {
    content: "";
    position: absolute;
    bottom: 2px;
    left: 18px;
    right: 18px;
    height: 2px;
    border-radius: 2px;
    background: var(--accent);
    transform: scaleX(0);
    transform-origin: center;
    transition: transform 0.3s ease;
  }

  .nav-link:hover::after,
  .nav-link.active::after {
    transform: scaleX(1);
  }

  .nav-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 22px;
    border-radius: 999px;
    background: var(--accent);
    color: #fff;
    font-size: 14px;
    font-weight: 700;
    margin-left: 8px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(232, 163, 61, 0.3);
  }

  .nav-cta:hover {
    background: var(--accent-light);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(232, 163, 61, 0.36);
  }

  .nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    padding: 10px;
    cursor: pointer;
    border-radius: 10px;
    transition: background 0.3s ease;
  }

  .nav-toggle:hover {
    background: rgba(14, 26, 43, 0.06);
  }

  .nav-toggle span {
    display: block;
    height: 2px;
    width: 22px;
    background: var(--primary);
    border-radius: 4px;
    transition: all 0.3s ease;
  }

  .nav-toggle.open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .nav-toggle.open span:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle.open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .mobile-menu {
    display: none;
    flex-direction: column;
    background: #fff;
    border-top: 1px solid var(--border);
    padding: 16px 24px 24px;
    gap: 8px;
  }

  .mobile-menu.show {
    display: flex;
  }

  .mobile-menu .nav-link {
    padding: 14px 18px;
    font-size: 16px;
    border-radius: 12px;
  }

  .mobile-menu .nav-link::after {
    display: none;
  }

  .mobile-menu .nav-cta {
    margin: 8px 0 0;
    justify-content: center;
    padding: 14px;
  }

  /* ===== Hero ===== */
  .hero {
    position: relative;
    min-height: 640px;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, rgba(8, 18, 32, 0.94), rgba(15, 30, 50, 0.82), rgba(22, 38, 60, 0.72)), url('/assets/images/backpic/back-1.png') center center/cover no-repeat;
    color: #fff;
    overflow: hidden;
  }

  .hero::after {
    content: "";
    position: absolute;
    right: -120px;
    top: -80px;
    width: 420px;
    height: 420px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(232, 163, 61, 0.18), transparent 70%);
    pointer-events: none;
  }

  .hero-inner {
    position: relative;
    z-index: 2;
    max-width: 720px;
    padding: 80px 0;
  }

  .hero-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 18px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.18);
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 1px;
    margin-bottom: 24px;
    color: var(--accent-light);
  }

  .hero-title {
    font-size: clamp(36px, 5.6vw, 58px);
    font-weight: 900;
    line-height: 1.15;
    letter-spacing: -0.5px;
    margin-bottom: 22px;
  }

  .hero-title .highlight {
    color: var(--accent-light);
  }

  .hero-subtitle {
    font-size: clamp(16px, 1.6vw, 19px);
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.82);
    margin-bottom: 38px;
    max-width: 580px;
  }

  .hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
  }

  .hero-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 36px;
  }

  .hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
    font-size: 13px;
    color: rgba(255, 255, 255, 0.85);
  }

  .hero-badge i {
    color: var(--accent-light);
  }

  /* ===== Features ===== */
  .features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
  }

  .feature-card {
    background: var(--card-bg);
    border-radius: var(--radius-md);
    padding: 36px 28px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    transition: all 0.35s ease;
    position: relative;
    overflow: hidden;
  }

  .feature-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent), var(--accent-light));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
  }

  .feature-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
  }

  .feature-card:hover::before {
    transform: scaleX(1);
  }

  .feature-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    border-radius: 16px;
    background: linear-gradient(135deg, rgba(232, 163, 61, 0.16), rgba(232, 163, 61, 0.08));
    color: var(--accent-dark);
    font-size: 22px;
    margin-bottom: 22px;
    transition: transform 0.3s ease;
  }

  .feature-card:hover .feature-icon {
    transform: scale(1.08) rotate(-4deg);
  }

  .feature-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 10px;
  }

  .feature-desc {
    font-size: 14px;
    line-height: 1.7;
    color: var(--text-weak);
  }

  /* ===== Categories ===== */
  .categories-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .category-card {
    background: #fff;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    transition: all 0.35s ease;
  }

  .category-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
  }

  .category-media {
    position: relative;
    height: 220px;
    overflow: hidden;
  }

  .category-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
  }

  .category-card:hover .category-media img {
    transform: scale(1.06);
  }

  .category-media::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 40%, rgba(14, 26, 43, 0.55));
  }

  .category-tag {
    position: absolute;
    left: 20px;
    bottom: 18px;
    z-index: 2;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: #fff;
    font-size: 13px;
    font-weight: 600;
    background: rgba(232, 163, 61, 0.92);
    padding: 6px 14px;
    border-radius: 999px;
  }

  .category-content {
    padding: 28px 28px 32px;
    flex: 1;
    display: flex;
    flex-direction: column;
  }

  .category-title {
    font-size: 22px;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 10px;
    transition: color 0.3s ease;
  }

  .category-card:hover .category-title {
    color: var(--accent-dark);
  }

  .category-desc {
    font-size: 15px;
    line-height: 1.7;
    color: var(--text-weak);
    flex: 1;
    margin-bottom: 20px;
  }

  .category-link {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 15px;
    color: var(--accent-dark);
    transition: gap 0.3s ease;
  }

  .category-link:hover {
    gap: 16px;
  }

  /* ===== News ===== */
  .news-section {
    background: #fff;
  }

  .news-list {
    max-width: 860px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 18px;
  }

  .news-card {
    display: flex;
    align-items: center;
    gap: 24px;
    background: var(--bg);
    border-radius: var(--radius-md);
    padding: 26px 32px;
    border: 1px solid transparent;
    transition: all 0.35s ease;
    position: relative;
  }

  .news-card:hover {
    background: #fff;
    border-color: var(--border);
    box-shadow: var(--shadow-md);
    transform: translateY(-3px);
  }

  .news-card-main {
    flex: 1;
    min-width: 0;
  }

  .news-card-top {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 10px;
  }

  .news-card-date {
    font-size: 13px;
    color: var(--text-light);
    display: inline-flex;
    align-items: center;
    gap: 6px;
  }

  .news-card-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 6px;
    line-height: 1.4;
    transition: color 0.3s ease;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

  .news-card:hover .news-card-title {
    color: var(--accent-dark);
  }

  .news-card-desc {
    font-size: 14px;
    color: var(--text-weak);
    line-height: 1.65;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

  .news-card-arrow {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: rgba(232, 163, 61, 0.12);
    color: var(--accent-dark);
    font-size: 15px;
    flex-shrink: 0;
    transition: all 0.3s ease;
  }

  .news-card:hover .news-card-arrow {
    background: var(--accent);
    color: #fff;
    transform: rotate(-45deg);
  }

  .empty-tip {
    text-align: center;
    padding: 60px 30px;
    background: var(--bg);
    border-radius: var(--radius-md);
    color: var(--text-weak);
    font-size: 16px;
  }

  /* ===== Stats ===== */
  .stats-section {
    background: linear-gradient(135deg, rgba(10, 20, 35, 0.94), rgba(16, 30, 50, 0.88)), url('/assets/images/backpic/back-2.png') center center/cover no-repeat;
    padding: 96px 0;
    color: #fff;
  }

  .stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
  }

  .stat-item {
    text-align: center;
    padding: 20px;
  }

  .stat-icon {
    font-size: 28px;
    color: var(--accent-light);
    margin-bottom: 14px;
  }

  .stat-number {
    font-size: clamp(32px, 3.6vw, 48px);
    font-weight: 900;
    line-height: 1.2;
    letter-spacing: -1px;
  }

  .stat-label {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    margin-top: 8px;
    letter-spacing: 0.5px;
  }

  /* ===== Steps ===== */
  .steps-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
    counter-reset: step;
  }

  .step-item {
    position: relative;
    background: #fff;
    border-radius: var(--radius-md);
    padding: 40px 28px 32px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    transition: all 0.35s ease;
    text-align: center;
  }

  .step-item:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
    border-color: rgba(232, 163, 61, 0.3);
  }

  .step-num {
    position: absolute;
    top: -18px;
    left: 50%;
    transform: translateX(-50%);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    font-weight: 800;
    font-size: 16px;
    box-shadow: 0 6px 16px rgba(14, 26, 43, 0.3);
  }

  .step-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 62px;
    height: 62px;
    border-radius: 18px;
    background: linear-gradient(135deg, rgba(232, 163, 61, 0.16), rgba(232, 163, 61, 0.08));
    color: var(--accent-dark);
    font-size: 24px;
    margin: 12px auto 20px;
    transition: transform 0.3s ease;
  }

  .step-item:hover .step-icon {
    transform: scale(1.1);
  }

  .step-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 10px;
  }

  .step-desc {
    font-size: 14px;
    line-height: 1.7;
    color: var(--text-weak);
  }

  /* ===== Games ===== */
  .games-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
  }

  .game-card {
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: #fff;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    transition: all 0.35s ease;
  }

  .game-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
  }

  .game-media {
    position: relative;
    height: 190px;
    overflow: hidden;
  }

  .game-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
  }

  .game-card:hover .game-media img {
    transform: scale(1.07);
  }

  .game-media::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 50%, rgba(14, 26, 43, 0.42));
  }

  .game-tag {
    position: absolute;
    top: 16px;
    left: 16px;
    z-index: 2;
    background: rgba(14, 26, 43, 0.75);
    color: #fff;
    padding: 5px 14px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
    backdrop-filter: blur(6px);
    border: 1px solid rgba(255, 255, 255, 0.16);
  }

  .game-content {
    padding: 24px 26px 28px;
  }

  .game-title {
    font-size: 19px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 8px;
    transition: color 0.3s ease;
  }

  .game-card:hover .game-title {
    color: var(--accent-dark);
  }

  .game-desc {
    font-size: 14px;
    line-height: 1.7;
    color: var(--text-weak);
  }

  /* ===== FAQ ===== */
  .faq-list {
    max-width: 800px;
    margin: 0 auto;
  }

  .faq-item {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    margin-bottom: 16px;
    overflow: hidden;
    transition: box-shadow 0.3s ease, border-color 0.3s ease;
  }

  .faq-item.active {
    border-color: rgba(232, 163, 61, 0.4);
    box-shadow: var(--shadow-sm);
  }

  .faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 22px 28px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 700;
    color: var(--primary);
    transition: color 0.3s ease;
    width: 100%;
    text-align: left;
  }

  .faq-question:hover {
    color: var(--accent-dark);
  }

  .faq-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: rgba(232, 163, 61, 0.12);
    color: var(--accent-dark);
    font-size: 14px;
    flex-shrink: 0;
    transition: transform 0.35s ease, background 0.35s ease;
  }

  .faq-item.active .faq-icon {
    transform: rotate(45deg);
    background: var(--accent);
    color: #fff;
  }

  .faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.4s ease;
    padding: 0 28px;
    color: var(--text-weak);
    font-size: 15px;
    line-height: 1.75;
  }

  .faq-item.active .faq-answer {
    max-height: 400px;
    padding: 0 28px 24px;
  }

  /* ===== CTA ===== */
  .cta-section {
    padding: 96px 0;
    background: linear-gradient(135deg, rgba(8, 18, 32, 0.9), rgba(14, 26, 43, 0.78)), url('/assets/images/backpic/back-3.png') center center/cover no-repeat;
  }

  .cta-box {
    max-width: 760px;
    margin: 0 auto;
    text-align: center;
    color: #fff;
  }

  .cta-title {
    font-size: clamp(28px, 3.4vw, 40px);
    font-weight: 900;
    line-height: 1.3;
    margin-bottom: 18px;
  }

  .cta-desc {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.75);
    max-width: 520px;
    margin: 0 auto 38px;
    line-height: 1.8;
  }

  .cta-actions {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 16px;
  }

  /* ===== Footer ===== */
  .site-footer {
    background: var(--primary);
    color: #fff;
    padding: 64px 0 0;
  }

  .footer-container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 24px;
  }

  .footer-main {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 40px;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

  .footer-brand .brand-logo {
    color: #fff;
    padding-left: 0;
    margin-bottom: 14px;
  }

  .footer-brand .logo-mark {
    background: linear-gradient(135deg, var(--accent), var(--accent-light));
    color: var(--primary);
  }

  .footer-desc {
    font-size: 14px;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.65);
    max-width: 320px;
  }

  .footer-links {
    display: flex;
    gap: 40px;
  }

  .footer-links-col {
    display: flex;
    flex-direction: column;
    gap: 12px;
  }

  .footer-links-col h4 {
    font-size: 14px;
    font-weight: 700;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 6px;
    letter-spacing: 0.5px;
  }

  .footer-links-col a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    transition: color 0.3s ease, padding-left 0.3s ease;
  }

  .footer-links-col a:hover {
    color: var(--accent-light);
    padding-left: 4px;
  }

  .footer-bottom {
    padding: 28px 0;
    text-align: center;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.45);
  }

  .footer-bottom a {
    color: rgba(255, 255, 255, 0.6);
  }

  .footer-bottom a:hover {
    color: var(--accent-light);
  }

  /* ===== Responsive ===== */
  @media (max-width: 1024px) {
    .features-grid {
      grid-template-columns: repeat(2, 1fr);
    }

    .steps-grid {
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }

    .stats-grid {
      grid-template-columns: repeat(2, 1fr);
      gap: 40px;
    }

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

    .nav-left,
    .nav-right {
      gap: 4px;
    }

    .nav-link {
      padding: 8px 12px;
      font-size: 14px;
    }

    .header-inner {
      height: 64px;
    }
  }

  @media (max-width: 768px) {
    .section {
      padding: 72px 0;
    }

    .nav-left,
    .nav-right {
      display: none;
    }

    .header-inner {
      height: 60px;
    }

    .brand-logo {
      font-size: 19px;
      padding-left: 0;
    }

    .logo-mark {
      width: 34px;
      height: 34px;
      font-size: 13px;
      border-radius: 10px;
    }

    .nav-toggle {
      display: flex;
    }

    .brand-logo {
      position: absolute;
      left: 50%;
      transform: translateX(-50%);
    }

    .mobile-menu {
      display: none;
    }

    .mobile-menu.show {
      display: flex;
    }

    .hero {
      min-height: 520px;
    }

    .hero-inner {
      padding: 60px 0;
    }

    .hero-actions {
      flex-direction: column;
      align-items: stretch;
    }

    .hero-actions .btn {
      justify-content: center;
    }

    .categories-grid {
      grid-template-columns: 1fr;
    }

    .news-card {
      flex-direction: column;
      align-items: flex-start;
      padding: 22px 24px;
      gap: 16px;
    }

    .news-card-arrow {
      position: absolute;
      right: 18px;
      top: 18px;
      width: 36px;
      height: 36px;
      font-size: 13px;
    }

    .news-card-top {
      padding-right: 40px;
    }

    .games-grid {
      grid-template-columns: 1fr;
    }

    .footer-main {
      flex-direction: column;
    }

    .footer-links {
      gap: 24px;
    }
  }

  @media (max-width: 520px) {
    .section {
      padding: 56px 0;
    }

    .section-header {
      margin-bottom: 36px;
    }

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

    .features-grid {
      grid-template-columns: 1fr;
    }

    .steps-grid {
      grid-template-columns: 1fr;
      gap: 20px;
    }

    .stats-grid {
      grid-template-columns: 1fr 1fr;
      gap: 24px;
    }

    .category-media {
      height: 170px;
    }

    .category-content {
      padding: 22px 20px 26px;
    }

    .news-section .news-card {
      padding: 20px;
    }

    .faq-question {
      padding: 18px 20px;
      font-size: 15px;
    }

    .faq-answer {
      padding: 0 20px;
    }

    .faq-item.active .faq-answer {
      padding: 0 20px 20px;
    }

    .hero-title {
      font-size: 32px;
    }

    .hero-subtitle {
      font-size: 15px;
    }

    .cta-actions {
      flex-direction: column;
      align-items: stretch;
    }

    .cta-actions .btn {
      justify-content: center;
    }

    .footer-main {
      gap: 28px;
    }

    .footer-links {
      flex-direction: column;
      gap: 20px;
    }
  }

/* roulang page: category1 */
:root {
  --primary: #1b2345;
  --primary-dark: #121a36;
  --primary-light: #2b3a6b;
  --accent: #c9a44c;
  --accent-dark: #a9883a;
  --accent-light: #e9d492;
  --bg: #f6f7fb;
  --surface: #ffffff;
  --text: #181d30;
  --text-weak: #66708a;
  --text-light: #9aa3b8;
  --border: #e5e9f0;
  --radius: 18px;
  --radius-sm: 10px;
  --shadow-sm: 0 2px 10px rgba(20, 28, 60, 0.05);
  --shadow-md: 0 10px 30px rgba(20, 28, 60, 0.08);
  --shadow-lg: 0 20px 48px rgba(20, 28, 60, 0.12);
  --transition: all 0.3s ease;
  --header-h: 72px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 16px;
}

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

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

ul, ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

input, button, textarea {
  font-family: inherit;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 96px 0;
}

.section-alt {
  background: var(--surface);
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 56px;
}

.section-tag {
  display: inline-block;
  background: rgba(201, 164, 76, 0.12);
  color: var(--accent-dark);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 18px;
  border-radius: 40px;
  letter-spacing: 0.5px;
  margin-bottom: 16px;
}

.section-header h2 {
  font-size: 36px;
  line-height: 1.3;
  color: var(--primary);
  margin-bottom: 14px;
  letter-spacing: -0.02em;
}

.section-header p {
  color: var(--text-weak);
  font-size: 16px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 50px;
  font-size: 15px;
  font-weight: 600;
  transition: var(--transition);
  border: 2px solid transparent;
  line-height: 1.4;
}

.btn-primary {
  background: var(--accent);
  color: var(--primary-dark);
  box-shadow: 0 6px 20px rgba(201, 164, 76, 0.3);
}

.btn-primary:hover {
  background: var(--accent-light);
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(201, 164, 76, 0.4);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-ghost {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.5);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: #fff;
  transform: translateY(-2px);
}

.btn-dark {
  background: var(--primary);
  color: #fff;
}

.btn-dark:hover {
  background: var(--primary-light);
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(27, 35, 69, 0.25);
}

.btn:focus-visible {
  outline: 3px solid rgba(201, 164, 76, 0.5);
  outline-offset: 2px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  height: var(--header-h);
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  height: var(--header-h);
}

.nav-left,
.nav-right {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-right {
  justify-content: flex-end;
}

.nav-link {
  position: relative;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  padding: 8px 2px;
  transition: var(--transition);
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
  transition: var(--transition);
}

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

.nav-link:hover::after {
  width: 100%;
}

.nav-link.active {
  color: var(--primary);
  font-weight: 600;
}

.nav-link.active::after {
  width: 100%;
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: -0.01em;
  white-space: nowrap;
}

.logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: var(--accent-light);
  border-radius: 12px;
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0;
  box-shadow: 0 4px 12px rgba(27, 35, 69, 0.2);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  justify-self: end;
}

.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transition: var(--transition);
}

.nav-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.mobile-menu {
  display: none;
  position: absolute;
  top: var(--header-h);
  left: 0;
  right: 0;
  background: var(--surface);
  padding: 12px 24px 20px;
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-md);
}

.mobile-menu.open {
  display: block;
}

.mobile-menu a {
  display: block;
  padding: 13px 0;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}

.mobile-menu a:last-child {
  border-bottom: none;
}

.mobile-menu a:hover {
  color: var(--accent-dark);
  padding-left: 6px;
}

.mobile-menu a.active {
  color: var(--accent-dark);
  font-weight: 600;
}

.page-hero {
  position: relative;
  padding: 140px 0;
  background-size: cover;
  background-position: center;
  color: #fff;
  overflow: hidden;
}

.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(18, 26, 54, 0.94) 0%, rgba(27, 35, 69, 0.78) 55%, rgba(43, 58, 107, 0.55) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 760px;
}

.hero-badge {
  display: inline-block;
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.3);
  padding: 6px 18px;
  border-radius: 40px;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 1px;
  margin-bottom: 22px;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.page-hero h1 {
  font-size: 48px;
  line-height: 1.25;
  margin-bottom: 18px;
  letter-spacing: -0.02em;
  color: #fff;
}

.page-hero p {
  font-size: 18px;
  color: rgba(255, 255, 255, 0.85);
  max-width: 560px;
  margin-bottom: 32px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.step-card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 32px 24px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  position: relative;
  transition: var(--transition);
}

.step-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: rgba(201, 164, 76, 0.4);
}

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: var(--accent-light);
  border-radius: 12px;
  font-weight: 800;
  font-size: 18px;
  margin-bottom: 18px;
}

.step-card h3 {
  font-size: 18px;
  color: var(--primary);
  margin-bottom: 10px;
}

.step-card p {
  font-size: 14px;
  color: var(--text-weak);
  line-height: 1.7;
}

.category-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.category-card {
  background: var(--surface);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.category-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(201, 164, 76, 0.35);
}

.card-cover {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  position: relative;
}

.card-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.category-card:hover .card-cover img {
  transform: scale(1.05);
}

.card-cover::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(18, 26, 54, 0.35));
}

.card-body {
  padding: 28px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.card-body h3 {
  font-size: 20px;
  color: var(--primary);
  margin-bottom: 10px;
}

.card-body p {
  font-size: 14px;
  color: var(--text-weak);
  line-height: 1.7;
  flex: 1;
}

.card-link {
  margin-top: 18px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--accent-dark);
  font-weight: 600;
  font-size: 14px;
  transition: var(--transition);
}

.card-link .arrow {
  transition: transform 0.3s ease;
}

.card-link:hover {
  gap: 10px;
  color: var(--primary);
}

.card-link:hover .arrow {
  transform: translateX(4px);
}

.tutorial-list {
  max-width: 860px;
  margin: 0 auto;
}

.tutorial-item {
  display: flex;
  align-items: center;
  gap: 24px;
  background: var(--surface);
  border-radius: var(--radius);
  padding: 24px 28px;
  margin-bottom: 16px;
  border: 1px solid var(--border);
  transition: var(--transition);
  scroll-margin-top: 100px;
}

.tutorial-item:hover {
  box-shadow: var(--shadow-md);
  transform: translateX(4px);
  border-color: rgba(201, 164, 76, 0.35);
}

.tutorial-icon {
  flex: 0 0 52px;
  width: 52px;
  height: 52px;
  background: rgba(201, 164, 76, 0.12);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-dark);
  font-size: 22px;
}

.tutorial-content {
  flex: 1;
}

.tutorial-content h3 {
  font-size: 17px;
  color: var(--primary);
  margin-bottom: 4px;
}

.tutorial-content p {
  font-size: 14px;
  color: var(--text-weak);
}

.tutorial-arrow {
  color: var(--text-light);
  transition: var(--transition);
  font-size: 18px;
}

.tutorial-item:hover .tutorial-arrow {
  color: var(--accent);
  transform: translateX(4px);
}

.stats-section {
  background: var(--primary);
  color: #fff;
  position: relative;
  overflow: hidden;
}

.stats-section::before {
  content: "";
  position: absolute;
  top: -30%;
  right: -10%;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: rgba(201, 164, 76, 0.08);
}

.stats-section .section-header h2 {
  color: #fff;
}

.stats-section .section-header p {
  color: rgba(255, 255, 255, 0.7);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  position: relative;
  z-index: 2;
}

.stat-item {
  text-align: center;
  padding: 32px 16px;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
  transition: var(--transition);
}

.stat-item:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-4px);
}

.stat-number {
  font-size: 42px;
  font-weight: 800;
  color: var(--accent-light);
  display: block;
  margin-bottom: 6px;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.stat-number small {
  font-size: 20px;
  font-weight: 600;
}

.stat-label {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.75);
}

.faq-wrap {
  max-width: 780px;
  margin: 0 auto;
}

.faq-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 14px;
  overflow: hidden;
  transition: var(--transition);
}

.faq-item.open {
  box-shadow: var(--shadow-md);
  border-color: rgba(201, 164, 76, 0.4);
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 22px 28px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--primary);
  transition: var(--transition);
}

.faq-question:hover {
  color: var(--accent-dark);
}

.faq-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(201, 164, 76, 0.12);
  color: var(--accent-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  transition: var(--transition);
  flex-shrink: 0;
  line-height: 1;
}

.faq-item.open .faq-icon {
  transform: rotate(45deg);
  background: var(--accent);
  color: #fff;
}

.faq-answer {
  max-height: 0;
  padding: 0 28px;
  overflow: hidden;
  transition: max-height 0.4s ease;
  color: var(--text-weak);
  font-size: 14px;
  line-height: 1.8;
}

.faq-item.open .faq-answer {
  max-height: 320px;
  padding-bottom: 24px;
}

.cta-section {
  padding: 96px 0;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: "";
  position: absolute;
  top: -60%;
  right: -20%;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: rgba(201, 164, 76, 0.15);
}

.cta-section::after {
  content: "";
  position: absolute;
  bottom: -40%;
  left: -10%;
  width: 340px;
  height: 340px;
  border-radius: 50%;
  background: rgba(201, 164, 76, 0.08);
}

.cta-inner {
  position: relative;
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
  z-index: 2;
}

.cta-inner h2 {
  font-size: 36px;
  color: #fff;
  margin-bottom: 14px;
  letter-spacing: -0.02em;
}

.cta-inner p {
  color: rgba(255, 255, 255, 0.8);
  font-size: 16px;
  margin-bottom: 32px;
}

.site-footer {
  background: var(--primary-dark);
  color: rgba(255, 255, 255, 0.8);
  padding: 64px 0 0;
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.footer-main {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand .brand-logo {
  color: #fff;
}

.footer-desc {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
  max-width: 360px;
  margin-top: 14px;
  line-height: 1.8;
}

.footer-links {
  display: flex;
  gap: 48px;
}

.footer-links-col h4 {
  color: #fff;
  font-size: 15px;
  margin-bottom: 16px;
  font-weight: 600;
}

.footer-links-col a {
  display: block;
  color: rgba(255, 255, 255, 0.6);
  font-size: 14px;
  padding: 6px 0;
  transition: var(--transition);
}

.footer-links-col a:hover {
  color: var(--accent-light);
  padding-left: 4px;
}

.footer-bottom {
  padding: 24px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.45);
}

.footer-bottom a {
  color: rgba(255, 255, 255, 0.6);
  transition: var(--transition);
}

.footer-bottom a:hover {
  color: var(--accent-light);
}

@media (max-width: 1024px) {
  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .category-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .section {
    padding: 72px 0;
  }
}

@media (max-width: 768px) {
  .header-inner {
    grid-template-columns: auto 1fr auto;
  }
  .nav-left,
  .nav-right {
    display: none;
  }
  .nav-toggle {
    display: flex;
  }
  .mobile-menu {
    display: none;
  }
  .mobile-menu.open {
    display: block;
  }
  .page-hero {
    padding: 100px 0;
  }
  .page-hero h1 {
    font-size: 32px;
  }
  .page-hero p {
    font-size: 16px;
  }
  .section-header h2 {
    font-size: 28px;
  }
  .cta-inner h2 {
    font-size: 28px;
  }
  .footer-main {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .footer-links {
    gap: 32px;
  }
}

@media (max-width: 520px) {
  .container {
    padding: 0 16px;
  }
  .steps-grid,
  .category-grid,
  .stats-grid {
    grid-template-columns: 1fr;
  }
  .hero-actions {
    flex-direction: column;
  }
  .hero-actions .btn {
    width: 100%;
  }
  .tutorial-item {
    flex-wrap: wrap;
    padding: 20px;
  }
  .tutorial-icon {
    flex-basis: 44px;
    width: 44px;
    height: 44px;
    font-size: 18px;
  }
  .tutorial-content {
    min-width: 0;
  }
  .footer-links {
    flex-direction: column;
    gap: 20px;
  }
}

/* roulang page: article */
:root {
  --primary: #1b2a4a;
  --primary-light: #2a3f6a;
  --primary-dark: #101b30;
  --accent: #c8a45e;
  --accent-light: #e2c784;
  --accent-dark: #a8863e;
  --bg: #f4f6fa;
  --bg-card: #ffffff;
  --bg-dark: #0e1626;
  --text: #191f2b;
  --text-light: #5d6b7c;
  --text-muted: #8c99a9;
  --border: #e2e7ef;
  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow-sm: 0 2px 8px rgba(14,22,38,0.05);
  --shadow-md: 0 6px 20px rgba(14,22,38,0.08);
  --shadow-lg: 0 16px 40px rgba(14,22,38,0.12);
  --transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
}
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: var(--transition); }
ul, ol { list-style: none; }
button { background: none; border: none; cursor: pointer; font-family: inherit; }
input, textarea { font-family: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ===== Header / Nav ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  gap: 24px;
}
.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  color: var(--primary);
  flex-shrink: 0;
  letter-spacing: .5px;
}
.logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 800;
  box-shadow: 0 4px 12px rgba(27,42,74,0.3);
}
.logo-text {
  font-size: 20px;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.nav-left, .nav-right { display: flex; align-items: center; gap: 32px; }
.nav-link {
  position: relative;
  padding: 8px 2px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-light);
}
.nav-link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform .3s ease;
}
.nav-link:hover { color: var(--primary); }
.nav-link:hover::after { transform: scaleX(1); transform-origin: left; }
.nav-link.active { color: var(--primary); font-weight: 600; }
.nav-link.active::after { transform: scaleX(1); }
.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border: 1px solid var(--border);
  border-radius: 8px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 4px;
  background: var(--bg-card);
}
.nav-toggle span { display: block; width: 18px; height: 2px; background: var(--primary); border-radius: 2px; }

/* ===== Button ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 50px;
  font-size: 15px;
  font-weight: 600;
  transition: var(--transition);
  white-space: nowrap;
  border: 2px solid transparent;
}
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 4px 14px rgba(27,42,74,0.3); }
.btn-primary:hover { background: var(--primary-light); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(27,42,74,0.35); }
.btn-light { background: #fff; color: var(--primary); }
.btn-light:hover { background: var(--bg); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn-outline-light { background: transparent; color: #fff; border-color: rgba(255,255,255,0.6); }
.btn-outline-light:hover { background: rgba(255,255,255,0.1); border-color: #fff; transform: translateY(-2px); }

/* ===== Tag / Badge ===== */
.tag {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 50px;
  font-size: 12px;
  font-weight: 600;
  background: rgba(200,164,94,0.12);
  color: var(--accent-dark);
  letter-spacing: .5px;
}

/* ===== Article Banner ===== */
.article-banner {
  position: relative;
  background-size: cover;
  background-position: center;
  padding: 90px 0 100px;
  color: #fff;
}
.article-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(14,22,38,0.92), rgba(27,42,74,0.82));
}
.article-banner .container { position: relative; z-index: 1; }
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  margin-bottom: 24px;
  color: rgba(255,255,255,0.8);
}
.breadcrumb a { color: rgba(255,255,255,0.85); }
.breadcrumb a:hover { color: var(--accent-light); }
.breadcrumb-sep { color: rgba(255,255,255,0.4); }
.article-title {
  font-size: 36px;
  font-weight: 800;
  line-height: 1.3;
  max-width: 840px;
  margin: 0 0 20px;
  letter-spacing: .5px;
}
.article-meta {
  display: flex;
  align-items: center;
  gap: 24px;
  font-size: 14px;
  color: rgba(255,255,255,0.85);
  flex-wrap: wrap;
}
.meta-item { display: inline-flex; align-items: center; gap: 8px; }
.meta-item i { color: var(--accent-light); }

/* ===== Article Detail ===== */
.article-detail-section { padding: 60px 0 80px; }
.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 48px;
  align-items: start;
}
.article-main {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 48px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
}
.article-body { font-size: 16px; line-height: 1.9; color: var(--text); }
.article-body h2 {
  font-size: 24px;
  font-weight: 700;
  margin: 32px 0 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--border);
  color: var(--primary);
}
.article-body h3 { font-size: 20px; font-weight: 700; margin: 28px 0 12px; color: var(--primary); }
.article-body p { margin-bottom: 16px; }
.article-body ul, .article-body ol { margin: 0 0 16px; padding-left: 20px; }
.article-body ul li, .article-body ol li { margin-bottom: 8px; position: relative; }
.article-body ul li::before { content: '•'; color: var(--accent); font-weight: 700; position: absolute; left: -16px; }
.article-body a { color: var(--primary); text-decoration: underline; text-underline-offset: 3px; }
.article-body blockquote {
  border-left: 4px solid var(--accent);
  padding: 12px 20px;
  background: rgba(200,164,94,0.08);
  border-radius: 0 8px 8px 0;
  margin: 20px 0;
  color: var(--text-light);
}
.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
}
.article-body table th,
.article-body table td { padding: 10px 16px; border: 1px solid var(--border); text-align: left; }
.article-body table th { background: rgba(27,42,74,0.05); font-weight: 600; }
.article-body img { border-radius: var(--radius); margin: 20px 0; }

/* ===== Empty ===== */
.article-empty { text-align: center; padding: 60px 40px; }
.empty-icon {
  width: 72px; height: 72px;
  border-radius: 50%;
  background: rgba(200,164,94,0.12);
  color: var(--accent-dark);
  font-size: 32px; font-weight: 800;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 24px;
}
.article-empty h2 { font-size: 28px; color: var(--primary); margin-bottom: 12px; }
.article-empty p { color: var(--text-light); margin-bottom: 32px; }

/* ===== Sidebar ===== */
.sidebar-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 28px;
  margin-bottom: 24px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}
.sidebar-card h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--border);
  position: relative;
}
.sidebar-card h3::after {
  content: '';
  position: absolute;
  left: 0; bottom: -2px;
  width: 36px; height: 2px;
  background: var(--accent);
}
.sidebar-nav li { margin-bottom: 12px; }
.sidebar-nav a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 14px;
  color: var(--text-light);
  background: var(--bg);
  transition: var(--transition);
}
.sidebar-nav a:hover {
  background: #fff;
  color: var(--primary);
  box-shadow: var(--shadow-sm);
  transform: translateX(4px);
}
.sidebar-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); flex-shrink: 0; }
.sidebar-info li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 0;
  border-bottom: 1px dashed var(--border);
  font-size: 14px;
}
.sidebar-info li:last-child { border-bottom: none; }
.sidebar-info li span { color: var(--text-muted); }
.sidebar-info li strong { color: var(--text); font-weight: 600; text-align: right; }
.sidebar-tip {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.7;
  padding: 12px 16px;
  background: rgba(200,164,94,0.08);
  border-radius: 8px;
  border-left: 3px solid var(--accent);
}

/* ===== Related ===== */
.related-section { padding: 80px 0; background: var(--bg); }
.section-header { text-align: center; margin-bottom: 48px; }
.section-header h2 { font-size: 32px; font-weight: 800; color: var(--primary); margin-bottom: 8px; }
.section-header p { color: var(--text-light); font-size: 16px; }
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.related-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: block;
}
.related-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.related-img { position: relative; overflow: hidden; aspect-ratio: 16 / 9; }
.related-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.related-card:hover .related-img img { transform: scale(1.06); }
.related-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(14,22,38,0.2), transparent);
}
.related-body { padding: 24px; }
.related-body .tag { margin-bottom: 12px; }
.related-body h3 { font-size: 18px; font-weight: 700; color: var(--text); margin: 12px 0 8px; line-height: 1.4; transition: var(--transition); }
.related-card:hover .related-body h3 { color: var(--primary); }
.related-body p { font-size: 14px; color: var(--text-light); line-height: 1.6; }

/* ===== CTA ===== */
.cta-section {
  padding: 80px 0;
  position: relative;
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
}
.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(14,22,38,0.92), rgba(27,42,74,0.85));
}
.cta-box {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  padding: 48px 56px;
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-lg);
  background: rgba(255,255,255,0.06);
  backdrop-filter: blur(8px);
}
.cta-content h2 { font-size: 28px; font-weight: 800; color: #fff; margin-bottom: 10px; }
.cta-content p { color: rgba(255,255,255,0.8); font-size: 15px; }
.cta-actions { display: flex; gap: 16px; flex-shrink: 0; }

/* ===== FAQ ===== */
.faq-section { padding: 80px 0; background: var(--bg); }
.faq-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  max-width: 1000px;
  margin: 0 auto;
}
.faq-item {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 28px 32px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.faq-item:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.faq-item h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.faq-item h3::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}
.faq-item p { font-size: 14px; color: var(--text-light); line-height: 1.7; }

/* ===== Footer ===== */
.site-footer {
  background: var(--bg-dark);
  color: rgba(255,255,255,0.7);
  padding: 64px 0 0;
}
.footer-container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.footer-main {
  display: flex;
  justify-content: space-between;
  gap: 60px;
  padding-bottom: 48px;
}
.footer-brand { max-width: 360px; }
.footer-brand .brand-logo { color: #fff; margin-bottom: 16px; }
.footer-brand .logo-mark { background: linear-gradient(135deg, var(--accent), var(--accent-light)); color: var(--bg-dark); }
.footer-brand .logo-text {
  background: none;
  -webkit-text-fill-color: #fff;
  color: #fff;
}
.footer-desc { font-size: 14px; line-height: 1.7; opacity: .7; }
.footer-links { display: flex; gap: 60px; }
.footer-links-col { display: flex; flex-direction: column; gap: 12px; }
.footer-links-col h4 { font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 8px; }
.footer-links-col a { font-size: 14px; color: rgba(255,255,255,0.7); transition: var(--transition); }
.footer-links-col a:hover { color: var(--accent-light); }
.footer-bottom {
  padding: 24px 0;
  font-size: 13px;
  text-align: center;
  opacity: .6;
  border-top: 1px solid rgba(255,255,255,0.06);
  margin-top: 0;
}
.footer-bottom a { color: var(--accent-light); }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .article-layout { grid-template-columns: 1fr; }
  .article-sidebar { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
  .sidebar-card { margin-bottom: 0; }
  .sidebar-card:last-child { grid-column: 1 / -1; }
  .cta-box { padding: 40px 32px; }
}
@media (max-width: 768px) {
  .header-inner {
    height: auto;
    min-height: 72px;
    flex-wrap: wrap;
    justify-content: center;
    padding: 12px 20px;
    gap: 10px;
  }
  .brand-logo { order: 0; flex-basis: 100%; justify-content: center; }
  .nav-left, .nav-right { order: 1; gap: 20px; }
  .nav-toggle { display: none; }
  .article-banner { padding: 60px 0 70px; }
  .article-title { font-size: 28px; }
  .article-main { padding: 32px 24px; }
  .related-grid { grid-template-columns: 1fr 1fr; }
  .cta-box { flex-direction: column; text-align: center; padding: 40px 28px; }
  .cta-actions { flex-direction: column; width: 100%; }
  .cta-actions .btn { width: 100%; }
  .faq-grid { grid-template-columns: 1fr; }
  .footer-main { flex-direction: column; gap: 40px; }
  .footer-links { gap: 40px; }
}
@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .nav-left, .nav-right { gap: 14px; }
  .nav-link { font-size: 14px; padding: 6px 0; }
  .logo-text { font-size: 18px; }
  .logo-mark { width: 34px; height: 34px; font-size: 13px; }
  .article-title { font-size: 24px; }
  .article-meta { gap: 12px; }
  .related-grid { grid-template-columns: 1fr; }
  .article-sidebar { grid-template-columns: 1fr; }
  .article-main { padding: 24px 18px; }
  .section-header h2 { font-size: 26px; }
  .cta-content h2 { font-size: 22px; }
  .footer-bottom { font-size: 12px; }
}

/* roulang page: category2 */
:root {
            --primary: #2b2350;
            --primary-light: #3b3168;
            --primary-dark: #1d1840;
            --accent: #e8a838;
            --accent-light: #f0c869;
            --accent-dark: #c98d27;
            --bg: #f6f5f1;
            --bg-light: #ffffff;
            --bg-dark: #1d1840;
            --text: #1e1e2c;
            --text-light: #6b7280;
            --text-lighter: #9ca3af;
            --border: #e8e6e1;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-lg: 24px;
            --shadow: 0 10px 36px rgba(43, 35, 80, 0.08);
            --shadow-lg: 0 20px 56px rgba(43, 35, 80, 0.14);
            --transition: 0.3s ease;
            --font-sans: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 16px;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }

        button {
            font-family: inherit;
            border: none;
            cursor: pointer;
            background: none;
        }

        input,
        textarea {
            font-family: inherit;
        }

        .container {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Header ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border);
        }

        .header-inner {
            height: 78px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            position: relative;
        }

        .brand-logo {
            position: absolute;
            left: 50%;
            top: 50%;
            transform: translate(-50%, -50%);
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            letter-spacing: -0.3px;
            color: var(--text);
            white-space: nowrap;
            z-index: 2;
        }

        .logo-mark {
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 900;
            letter-spacing: 0;
            box-shadow: 0 4px 12px rgba(43, 35, 80, 0.28);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 2px;
        }

        .nav-left {
            flex: 1;
        }

        .header-right {
            flex: 1;
            display: flex;
            align-items: center;
            justify-content: flex-end;
            gap: 12px;
        }

        .nav-link {
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 500;
            color: var(--text-light);
            transition: all var(--transition);
        }

        .nav-link:hover {
            color: var(--text);
            background: rgba(43, 35, 80, 0.06);
        }

        .nav-link.active {
            color: var(--primary);
            background: rgba(43, 35, 80, 0.09);
            font-weight: 600;
        }

        .menu-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            gap: 5px;
            width: 42px;
            height: 42px;
            border-radius: 12px;
            border: 1px solid var(--border);
            background: #fff;
            transition: all var(--transition);
        }

        .menu-toggle span {
            width: 18px;
            height: 2px;
            background: var(--text);
            border-radius: 2px;
            transition: all 0.3s ease;
        }

        .menu-toggle.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .menu-toggle.active span:nth-child(2) {
            opacity: 0;
        }

        .menu-toggle.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: 78px;
            left: 0;
            right: 0;
            background: #fff;
            border-bottom: 1px solid var(--border);
            box-shadow: 0 16px 40px rgba(43, 35, 80, 0.12);
            padding: 16px;
            flex-direction: column;
            gap: 4px;
            z-index: 99;
            border-radius: 0 0 var(--radius) var(--radius);
        }

        .mobile-menu.open {
            display: flex;
        }

        .mobile-menu .nav-link {
            padding: 14px 16px;
            font-size: 16px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 28px;
            border-radius: 14px;
            font-size: 15px;
            font-weight: 600;
            transition: all var(--transition);
            border: 2px solid transparent;
            white-space: nowrap;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            color: #fff;
            box-shadow: 0 6px 20px rgba(43, 35, 80, 0.24);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(43, 35, 80, 0.32);
            color: #fff;
        }

        .btn-accent {
            background: linear-gradient(135deg, var(--accent) 0%, var(--accent-light) 100%);
            color: var(--primary-dark);
            box-shadow: 0 6px 20px rgba(232, 168, 56, 0.3);
        }

        .btn-accent:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 30px rgba(232, 168, 56, 0.4);
            color: var(--primary-dark);
        }

        .btn-outline {
            border-color: rgba(255, 255, 255, 0.5);
            color: #fff;
            background: transparent;
        }

        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.12);
            transform: translateY(-2px);
            color: #fff;
        }

        .btn-sm {
            padding: 9px 18px;
            font-size: 14px;
            border-radius: 10px;
        }

        .header-cta {
            margin-left: 8px;
        }

        /* ===== Banner ===== */
        .page-banner {
            position: relative;
            padding: 120px 0 100px;
            background: linear-gradient(135deg, rgba(29, 24, 64, 0.92) 0%, rgba(43, 35, 80, 0.82) 50%, rgba(59, 49, 104, 0.78) 100%),
                url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            text-align: center;
            color: #fff;
        }

        .banner-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.14);
            border: 1px solid rgba(255, 255, 255, 0.2);
            padding: 8px 18px;
            border-radius: 40px;
            font-size: 13px;
            letter-spacing: 0.5px;
            margin-bottom: 24px;
            backdrop-filter: blur(6px);
        }

        .banner-badge i {
            color: var(--accent-light);
        }

        .page-banner h1 {
            font-size: clamp(36px, 5vw, 56px);
            font-weight: 800;
            letter-spacing: -1px;
            line-height: 1.2;
            margin-bottom: 20px;
            text-shadow: 0 4px 24px rgba(0, 0, 0, 0.2);
        }

        .page-banner p {
            max-width: 680px;
            margin: 0 auto 32px;
            font-size: 18px;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.7;
        }

        .breadcrumb {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
        }

        .breadcrumb a {
            color: rgba(255, 255, 255, 0.8);
        }

        .breadcrumb a:hover {
            color: var(--accent-light);
        }

        .breadcrumb i {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.4);
        }

        .breadcrumb span {
            color: var(--accent-light);
        }

        /* ===== Section ===== */
        .section {
            padding: 96px 0;
        }

        .section-alt {
            background: var(--bg-light);
        }

        .section-head {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 56px;
        }

        .section-head .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent-dark);
            background: rgba(232, 168, 56, 0.1);
            padding: 6px 16px;
            border-radius: 40px;
            letter-spacing: 0.6px;
            margin-bottom: 16px;
            text-transform: uppercase;
        }

        .section-head h2 {
            font-size: clamp(28px, 3.4vw, 38px);
            font-weight: 800;
            letter-spacing: -0.5px;
            line-height: 1.3;
            margin-bottom: 14px;
        }

        .section-head p {
            font-size: 16px;
            color: var(--text-light);
            line-height: 1.8;
        }

        /* ===== Intro ===== */
        .category-intro {
            padding: 96px 0 80px;
        }

        .intro-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 64px;
            align-items: center;
        }

        .intro-copy h2 {
            font-size: clamp(28px, 3.2vw, 36px);
            font-weight: 800;
            letter-spacing: -0.5px;
            line-height: 1.3;
            margin-bottom: 20px;
        }

        .intro-copy h2 span {
            color: var(--accent-dark);
            position: relative;
        }

        .intro-copy p {
            color: var(--text-light);
            font-size: 16px;
            line-height: 1.9;
            margin-bottom: 24px;
        }

        .intro-points {
            list-style: none;
            display: grid;
            gap: 14px;
            margin-top: 28px;
        }

        .intro-points li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            font-size: 15px;
            color: var(--text);
            padding: 14px 18px;
            background: var(--bg-light);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
        }

        .intro-points li:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow);
            transform: translateX(4px);
        }

        .intro-points li i {
            color: var(--accent);
            margin-top: 3px;
            font-size: 18px;
        }

        .intro-visual {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .intro-visual img {
            width: 100%;
            height: 420px;
            object-fit: cover;
        }

        .intro-visual::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 60%, rgba(29, 24, 64, 0.4) 100%);
        }

        .intro-stat {
            position: absolute;
            left: 24px;
            right: 24px;
            bottom: 24px;
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: var(--radius);
            padding: 18px 24px;
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 12px;
            z-index: 2;
        }

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

        .intro-stat .stat-num {
            display: block;
            font-size: 24px;
            font-weight: 800;
            color: #fff;
        }

        .intro-stat .stat-label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.8);
        }

        /* ===== Tips Cards ===== */
        .tips-cards {
            padding: 96px 0;
            background: url('/assets/images/backpic/back-2.png') center/cover fixed no-repeat;
            position: relative;
        }

        .tips-cards::before {
            content: "";
            position: absolute;
            inset: 0;
            background: rgba(255, 255, 255, 0.96);
        }

        .tips-cards .container {
            position: relative;
            z-index: 2;
        }

        .cards-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .tip-card {
            background: var(--bg-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }

        .tip-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(232, 168, 56, 0.4);
        }

        .tip-card .card-img {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 11;
        }

        .tip-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .tip-card:hover .card-img img {
            transform: scale(1.06);
        }

        .tip-card .card-img::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 40%, rgba(29, 24, 64, 0.35) 100%);
        }

        .tip-card .card-body {
            padding: 26px 24px 28px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .tip-card .card-tag {
            display: inline-flex;
            align-self: flex-start;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 700;
            color: var(--primary);
            background: rgba(43, 35, 80, 0.08);
            padding: 4px 12px;
            border-radius: 30px;
            margin-bottom: 12px;
            letter-spacing: 0.4px;
        }

        .tip-card h3 {
            font-size: 19px;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 10px;
            color: var(--text);
        }

        .tip-card p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
            flex: 1;
        }

        .tip-card .card-link {
            margin-top: 16px;
            font-size: 14px;
            font-weight: 600;
            color: var(--accent-dark);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap 0.3s ease;
        }

        .tip-card .card-link:hover {
            gap: 10px;
        }

        /* ===== Tip Types ===== */
        .tip-types {
            padding: 96px 0;
        }

        .types-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .type-item {
            background: var(--bg-light);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 32px 24px;
            text-align: center;
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }

        .type-item::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            opacity: 0;
            transition: opacity var(--transition);
        }

        .type-item:hover {
            border-color: rgba(232, 168, 56, 0.45);
            box-shadow: var(--shadow);
            transform: translateY(-4px);
        }

        .type-item:hover::before {
            opacity: 1;
        }

        .type-icon {
            width: 64px;
            height: 64px;
            border-radius: 18px;
            background: linear-gradient(135deg, rgba(43, 35, 80, 0.1) 0%, rgba(232, 168, 56, 0.14) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            font-size: 26px;
            color: var(--primary);
        }

        .type-item h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .type-item p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
        }

        /* ===== Process ===== */
        .process-section {
            padding: 96px 0;
            background: var(--bg-dark);
            color: #fff;
            background-image: linear-gradient(135deg, rgba(29, 24, 64, 0.97), rgba(43, 35, 80, 0.94)), url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
        }

        .process-section .section-head h2 {
            color: #fff;
        }

        .process-section .section-head p {
            color: rgba(255, 255, 255, 0.7);
        }

        .process-section .section-tag {
            color: var(--accent-light) !important;
            background: rgba(232, 168, 56, 0.15) !important;
        }

        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            margin-top: 20px;
        }

        .process-step {
            text-align: center;
            position: relative;
            padding: 32px 20px;
            border-radius: var(--radius);
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(8px);
            transition: all var(--transition);
        }

        .process-step:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-4px);
        }

        .step-num {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            color: var(--primary-dark);
            font-size: 18px;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            box-shadow: 0 6px 20px rgba(232, 168, 56, 0.4);
        }

        .process-step h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .process-step p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.7;
        }

        .process-arrow {
            position: absolute;
            right: -24px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--accent);
            font-size: 20px;
            z-index: 2;
            opacity: 0.7;
        }

        .process-step:last-child .process-arrow {
            display: none;
        }

        /* ===== Articles ===== */
        .article-section {
            padding: 96px 0;
        }

        .article-list {
            max-width: 860px;
            margin: 0 auto;
        }

        .article-item {
            display: flex;
            align-items: center;
            gap: 20px;
            padding: 22px 24px;
            background: var(--bg-light);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            margin-bottom: 16px;
            transition: all var(--transition);
        }

        .article-item:hover {
            border-color: rgba(232, 168, 56, 0.4);
            box-shadow: var(--shadow);
            transform: translateX(6px);
        }

        .article-thumb {
            width: 88px;
            height: 88px;
            border-radius: 14px;
            overflow: hidden;
            flex-shrink: 0;
            background: var(--primary);
        }

        .article-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .article-info {
            flex: 1;
        }

        .article-info h3 {
            font-size: 17px;
            font-weight: 600;
            line-height: 1.5;
            margin-bottom: 6px;
            color: var(--text);
        }

        .article-info h3:hover {
            color: var(--primary);
        }

        .article-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--text-lighter);
        }

        .article-meta i {
            font-size: 14px;
            color: var(--accent);
        }

        .article-link {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: rgba(43, 35, 80, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 16px;
            flex-shrink: 0;
            transition: all var(--transition);
        }

        .article-item:hover .article-link {
            background: var(--primary);
            color: #fff;
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 96px 0;
            background: var(--bg-light);
        }

        .faq-list {
            max-width: 860px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            margin-bottom: 14px;
            overflow: hidden;
            transition: border-color var(--transition);
        }

        .faq-item.open {
            border-color: rgba(232, 168, 56, 0.5);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            background: none;
            text-align: left;
            transition: background var(--transition);
        }

        .faq-question:hover {
            background: rgba(43, 35, 80, 0.03);
        }

        .faq-icon {
            width: 28px;
            height: 28px;
            min-width: 28px;
            border-radius: 50%;
            background: rgba(43, 35, 80, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: var(--primary);
            transition: all 0.3s ease;
        }

        .faq-item.open .faq-icon {
            background: var(--accent);
            color: var(--primary-dark);
            transform: rotate(135deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
        }

        .faq-answer-inner {
            padding: 0 24px 22px;
            color: var(--text-light);
            font-size: 15px;
            line-height: 1.8;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 80px 0;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            text-align: center;
            color: #fff;
        }

        .cta-section h2 {
            font-size: clamp(28px, 3.4vw, 38px);
            font-weight: 800;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }

        .cta-section p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.8);
            max-width: 640px;
            margin: 0 auto 32px;
            line-height: 1.8;
        }

        .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.72);
            padding: 60px 0 0;
        }

        .footer-container {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .footer-main {
            display: grid;
            grid-template-columns: 1.4fr 1fr;
            gap: 48px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .footer-brand .brand-logo {
            position: static;
            transform: none;
            color: #fff;
            margin-bottom: 16px;
            font-size: 20px;
        }

        .footer-brand .logo-mark {
            width: 36px;
            height: 36px;
            font-size: 12px;
        }

        .footer-desc {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.8;
            margin-top: 14px;
            max-width: 360px;
        }

        .footer-links {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 32px;
        }

        .footer-links-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-links-col a {
            display: block;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            padding: 5px 0;
            transition: all var(--transition);
        }

        .footer-links-col a:hover {
            color: var(--accent-light);
            padding-left: 6px;
        }

        .footer-bottom {
            padding: 24px 0 32px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
        }

        .footer-bottom a:hover {
            color: var(--accent-light);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .cards-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }

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

            .process-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }

            .process-arrow {
                display: none;
            }

            .intro-grid {
                gap: 40px;
            }

            .intro-visual img {
                height: 360px;
            }
        }

        @media (max-width: 768px) {
            .nav-left,
            .nav-right {
                display: none !important;
            }

            .menu-toggle {
                display: flex;
            }

            .header-cta {
                display: none;
            }

            .header-inner {
                height: 72px;
            }

            .brand-logo {
                position: static;
                transform: none;
                margin: 0 auto;
                font-size: 19px;
            }

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

            .mobile-menu {
                top: 72px;
            }

            .page-banner {
                padding: 80px 0 64px;
            }

            .page-banner h1 {
                font-size: 32px;
            }

            .section {
                padding: 64px 0;
            }

            .category-intro {
                padding: 64px 0 48px;
            }

            .intro-grid {
                grid-template-columns: 1fr;
            }

            .intro-visual img {
                height: 300px;
            }

            .intro-stat .stat-num {
                font-size: 20px;
            }

            .cards-grid {
                grid-template-columns: 1fr;
            }

            .types-grid {
                grid-template-columns: 1fr;
            }

            .process-grid {
                grid-template-columns: 1fr;
            }

            .footer-main {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .footer-links {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }

            .cta-section {
                padding: 64px 0;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .page-banner p {
                font-size: 16px;
            }

            .section-head {
                margin-bottom: 40px;
            }

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

            .article-item {
                flex-direction: column;
                align-items: flex-start;
            }

            .article-thumb {
                width: 100%;
                height: 180px;
            }

            .article-link {
                display: none;
            }

            .intro-stat {
                grid-template-columns: 1fr;
                gap: 8px;
                padding: 16px;
            }

            .intro-stat .stat-item {
                padding: 4px 0;
            }

            .footer-links {
                grid-template-columns: 1fr;
            }

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

            .btn {
                width: 100%;
                padding: 14px 20px;
            }

            .cta-buttons {
                flex-direction: column;
                align-items: stretch;
            }
        }