/* roulang page: index */
:root {
    --bg-base: #0B0F14;
    --bg-secondary: #111720;
    --bg-hover: #0E131A;
    --primary: #C8FF3E;
    --primary-hover: #D8FF6B;
    --primary-active: #B2E632;
    --accent: #FFB547;
    --text-main: #F2F5F7;
    --text-sub: #9AA7B4;
    --text-muted: #5D6B78;
    --border-color: rgba(255,255,255,0.08);
    --border-hover: rgba(200,255,62,0.4);
    --radius-sm: 12px;
    --radius-md: 16px;
    --radius-lg: 20px;
    --shadow-card: 0 0 0 1px rgba(200,255,62,0.25), 0 12px 32px rgba(0,0,0,0.35);
    --shadow-float: 0 20px 50px rgba(0,0,0,0.5);
    --transition: 0.22s ease;
  }

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

  html { scroll-behavior: smooth; }

  body {
    background: var(--bg-base);
    color: var(--text-main);
    font-family: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
    font-size: 16px;
    line-height: 1.8;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
  }

  img { max-width: 100%; display: block; }
  a { text-decoration: none; color: inherit; transition: var(--transition); }
  button { font-family: inherit; cursor: pointer; border: none; background: none; }
  input { font-family: inherit; border: none; outline: none; background: none; }

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

  @media (max-width: 768px) {
    .container { padding-left: 16px; padding-right: 16px; }
  }

  a:focus-visible,
  button:focus-visible,
  input:focus-visible,
  summary:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
    border-radius: 4px;
  }

  /* ======= 统一导航 ======= */
  .site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: 72px;
    background: rgba(11,15,20,0.82);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255,255,255,0.06);
    transition: var(--transition);
  }

  .header-inner {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
  }

  .logo-wrap {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
  }

  .logo-icon {
    width: 32px;
    height: 32px;
    background: var(--primary);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
  }

  .logo-icon svg {
    width: 18px;
    height: 18px;
    stroke: #0B0F14;
    stroke-width: 2.4;
    fill: none;
    stroke-linecap: round;
    stroke-linejoin: round;
  }

  .logo-text {
    font-size: 18px;
    font-weight: 700;
    color: #fff;
    letter-spacing: -0.2px;
    white-space: nowrap;
  }

  .logo-text span { color: var(--primary); }

  .main-nav {
    display: flex;
    align-items: center;
    gap: 32px;
  }

  .main-nav a {
    font-size: 14px;
    color: var(--text-sub);
    line-height: 72px;
    position: relative;
    font-weight: 500;
  }

  .main-nav a::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -2px;
    width: 100%;
    height: 2px;
    background: var(--primary);
    border-radius: 0;
    transform: scaleX(0);
    transform-origin: center;
    transition: transform 0.22s ease;
  }

  .main-nav a:hover,
  .main-nav a.active {
    color: var(--text-main);
  }

  .main-nav a.active::after {
    transform: scaleX(1);
  }

  .header-right {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
  }

  .search-box {
    position: relative;
    width: 260px;
    height: 36px;
    transition: width 0.22s ease, border-color 0.22s ease, background 0.22s ease;
  }

  .search-box:focus-within {
    width: 320px;
    border-color: var(--primary);
    background: var(--bg-secondary);
  }

  .search-inner {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    height: 100%;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 10px;
    padding: 0 10px;
    transition: var(--transition);
  }

  .search-box:focus-within .search-inner {
    border-color: var(--primary);
    background: var(--bg-secondary);
  }

  .search-inner i {
    font-size: 14px;
    color: var(--text-sub);
    flex-shrink: 0;
  }

  .search-inner input {
    flex: 1;
    min-width: 0;
    font-size: 13px;
    color: var(--text-main);
    background: transparent;
  }

  .search-inner input::placeholder { color: var(--text-muted); }

  .search-kbd {
    font-size: 10px;
    color: var(--text-muted);
    background: rgba(255,255,255,0.06);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 2px 6px;
    font-weight: 600;
    flex-shrink: 0;
    letter-spacing: 0.4px;
  }

  .search-dropdown {
    position: absolute;
    top: calc(100% + 6px);
    left: 0;
    right: 0;
    background: var(--bg-secondary);
    border-radius: 12px;
    box-shadow: var(--shadow-float);
    border: 1px solid var(--border-color);
    padding: 8px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-6px);
    transition: var(--transition);
    z-index: 100;
  }

  .search-box:focus-within .search-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .search-dropdown .group-label {
    font-size: 10px;
    color: var(--text-muted);
    padding: 8px 10px 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 600;
  }

  .search-dropdown .result-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-sub);
    padding: 8px 10px;
    border-radius: 8px;
    transition: var(--transition);
  }

  .search-dropdown .result-item:hover {
    background: rgba(200,255,62,0.06);
    color: var(--text-main);
  }

  .search-dropdown .result-item i {
    font-size: 12px;
    color: var(--text-muted);
  }

  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    font-size: 14px;
    font-weight: 600;
    border-radius: 999px;
    padding: 10px 22px;
    transition: var(--transition);
    white-space: nowrap;
    line-height: 1.4;
  }

  .btn-primary {
    background: var(--primary);
    color: #0B0F14;
  }

  .btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
  }

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

  .btn-ghost {
    background: transparent;
    border: 1px solid rgba(255,255,255,0.2);
    color: var(--text-main);
  }

  .btn-ghost:hover {
    border-color: var(--primary);
    color: var(--primary);
  }

  .btn-dark {
    background: #0B0F14;
    color: var(--primary);
  }

  .btn-dark:hover {
    background: #1a2130;
    color: var(--primary-hover);
    transform: translateY(-1px);
  }

  .btn-lg { padding: 14px 32px; font-size: 15px; }

  .btn-sm { padding: 7px 14px; font-size: 13px; }

  .btn-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-sub);
  }

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

  .btn-link i { font-size: 12px; transition: transform 0.22s ease; }
  .btn-link:hover i { transform: translateX(3px); }

  /* ======= 汉堡按钮 ======= */
  .menu-toggle {
    display: none;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: rgba(255,255,255,0.06);
    align-items: center;
    justify-content: center;
    font-size: 18px;
    color: var(--text-main);
  }

  .mobile-menu {
    display: none;
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--bg-base);
    padding: 24px 16px 32px;
    border-bottom: 1px solid var(--border-color);
    z-index: 999;
    flex-direction: column;
  }

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

  .mobile-menu a {
    font-size: 20px;
    line-height: 48px;
    color: var(--text-main);
    border-bottom: 1px solid rgba(255,255,255,0.05);
  }

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

  .mobile-menu a.active { color: var(--primary); }

  .mobile-menu .mobile-search {
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(255,255,255,0.06);
    border-radius: 12px;
    padding: 12px 16px;
    margin: 16px 0;
  }

  .mobile-menu .mobile-search input {
    flex: 1;
    color: var(--text-main);
    font-size: 14px;
  }

  .mobile-menu .mobile-search input::placeholder { color: var(--text-muted); }

  /* ======= Hero ======= */
  .hero {
    position: relative;
    min-height: 620px;
    display: flex;
    align-items: flex-end;
    padding: 120px 0 96px;
    background-image: url('/assets/images/backpic/back-1.png');
    background-size: cover;
    background-position: center;
  }

  .hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(11,15,20,0) 0%, rgba(11,15,20,0.72) 100%);
  }

  .hero-content {
    position: relative;
    z-index: 2;
    max-width: 640px;
  }

  .hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255,181,71,0.1);
    color: var(--accent);
    border: 1px solid rgba(255,181,71,0.25);
    font-size: 12px;
    font-weight: 600;
    padding: 4px 14px;
    border-radius: 999px;
    letter-spacing: 0.4px;
    margin-bottom: 20px;
  }

  .hero-badge .dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent);
    animation: pulse 1.6s infinite;
  }

  @keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.8); }
  }

  .hero h1 {
    font-size: 48px;
    line-height: 1.2;
    font-weight: 700;
    letter-spacing: -0.5px;
    margin-bottom: 16px;
    color: var(--text-main);
  }

  .hero-sub {
    font-size: 16px;
    color: var(--text-sub);
    line-height: 1.8;
    max-width: 480px;
    margin-bottom: 32px;
  }

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

  .hero-social {
    position: absolute;
    right: 40px;
    bottom: 96px;
    z-index: 2;
    display: flex;
    align-items: center;
    gap: 16px;
  }

  .avatar-stack {
    display: flex;
  }

  .avatar-stack img,
  .avatar-stack .avatar-placeholder {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 2px solid var(--bg-base);
    object-fit: cover;
    margin-left: -8px;
  }

  .avatar-stack .avatar-placeholder {
    background: var(--bg-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    color: var(--text-muted);
    font-weight: 700;
  }

  .avatar-stack img:first-child { margin-left: 0; }

  .hero-social-text {
    font-size: 12px;
    color: var(--text-sub);
    white-space: nowrap;
  }

  .hero-social-text strong {
    color: var(--text-main);
    font-weight: 700;
  }

  /* ======= 通用区块 ======= */
  .section {
    padding: 96px 0;
  }

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

  .section-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 40px;
    flex-wrap: wrap;
  }

  .section-head h2 {
    font-size: 32px;
    line-height: 1.3;
    font-weight: 700;
    letter-spacing: -0.4px;
    color: var(--text-main);
  }

  .section-head .more-link {
    font-size: 14px;
    color: var(--text-sub);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition);
  }

  .section-head .more-link:hover { color: var(--primary); }
  .section-head .more-link:hover i { transform: translateX(3px); }
  .section-head .more-link i { font-size: 12px; transition: transform 0.22s ease; }

  /* ======= 倒计时 ======= */
  .countdown-section {
    padding: 40px 0 96px;
  }

  .countdown-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 40px;
    position: relative;
    overflow: hidden;
  }

  .countdown-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    opacity: 0.6;
  }

  .countdown-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 28px;
    flex-wrap: wrap;
    gap: 12px;
  }

  .countdown-head h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-main);
  }

  .countdown-head .calendar-link {
    font-size: 13px;
    color: var(--text-sub);
    display: inline-flex;
    align-items: center;
    gap: 6px;
  }

  .countdown-head .calendar-link:hover { color: var(--primary); }

  .countdown-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
  }

  .countdown-item {
    background: rgba(255,255,255,0.04);
    border-radius: 14px;
    padding: 20px 16px;
    text-align: center;
    position: relative;
  }

  .countdown-item + .countdown-item::before {
    content: '';
    position: absolute;
    left: -8px;
    top: 50%;
    transform: translateY(-50%);
    width: 1px;
    height: 40px;
    background: rgba(255,255,255,0.06);
  }

  .countdown-item .num {
    font-size: 56px;
    line-height: 1;
    font-weight: 700;
    color: var(--primary);
    font-variant-numeric: tabular-nums;
  }

  .countdown-item .unit {
    font-size: 12px;
    color: var(--text-sub);
    margin-top: 8px;
    display: block;
    letter-spacing: 1px;
  }

  .countdown-meta {
    margin-top: 20px;
    font-size: 12px;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
  }

  .countdown-meta .dot-sep {
    width: 3px;
    height: 3px;
    border-radius: 50%;
    background: var(--text-muted);
    display: inline-block;
  }

  /* ======= 看点 ======= */
  .highlights-section {
    padding: 0 0 96px;
  }

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

  .highlight-item {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 28px 24px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
  }

  .highlight-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--primary);
    opacity: 0.3;
    transition: opacity 0.22s ease;
  }

  .highlight-item:hover {
    border-color: var(--border-hover);
    box-shadow: var(--shadow-card);
    transform: translateY(-2px);
  }

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

  .highlight-num {
    font-size: 40px;
    font-weight: 700;
    color: var(--accent);
    line-height: 1;
    margin-bottom: 16px;
    font-variant-numeric: tabular-nums;
  }

  .highlight-item h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 10px;
    line-height: 1.4;
  }

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

  /* ======= 订阅提醒 ======= */
  .subscribe-section {
    padding: 0 0 96px;
  }

  .subscribe-block {
    background: var(--primary);
    border-radius: 20px;
    padding: 56px;
    display: flex;
    align-items: center;
    gap: 48px;
    position: relative;
    overflow: hidden;
  }

  .subscribe-block::after {
    content: '';
    position: absolute;
    right: -40px;
    top: -40px;
    width: 200px;
    height: 200px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230B0F14' stroke-width='1.5' opacity='0.08'%3E%3Cpath d='M2 12h20M12 2v20M6 6l12 12M18 6L6 18'/%3E%3C/svg%3E");
    background-size: contain;
    transform: rotate(15deg);
    pointer-events: none;
  }

  .subscribe-left {
    flex: 1;
    position: relative;
    z-index: 1;
  }

  .subscribe-left h3 {
    font-size: 28px;
    font-weight: 700;
    color: #111720;
    line-height: 1.3;
    margin-bottom: 8px;
  }

  .subscribe-left p {
    font-size: 14px;
    color: rgba(17,23,32,0.7);
    line-height: 1.6;
  }

  .subscribe-form {
    display: flex;
    gap: 12px;
    flex-shrink: 0;
    position: relative;
    z-index: 1;
    flex-wrap: wrap;
  }

  .subscribe-form input {
    width: 280px;
    height: 48px;
    background: #fff;
    border: 1px solid rgba(17,23,32,0.12);
    border-radius: 12px;
    padding: 0 16px;
    font-size: 14px;
    color: #111720;
    transition: var(--transition);
  }

  .subscribe-form input::placeholder {
    color: rgba(17,23,32,0.4);
  }

  .subscribe-form input:focus {
    border-color: #111720;
    box-shadow: 0 0 0 3px rgba(17,23,32,0.08);
  }

  .subscribe-form input.error {
    border-color: #FF5C5C;
  }

  .subscribe-form .error-msg {
    display: none;
    font-size: 12px;
    color: #FF5C5C;
    flex-basis: 100%;
    padding-left: 4px;
  }

  .subscribe-form .success-msg {
    display: none;
    font-size: 12px;
    color: #34D399;
    flex-basis: 100%;
    padding-left: 4px;
  }

  .subscribe-form.success .btn {
    background: #34D399;
    color: #fff;
  }

  /* ======= CMS 资讯板块 ======= */
  .news-section { padding: 0 0 96px; }

  .news-layout {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 24px;
  }

  .news-featured {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 20px;
    transition: var(--transition);
  }

  .news-featured:hover {
    border-color: var(--border-hover);
    box-shadow: var(--shadow-card);
  }

  .news-featured img {
    width: 100%;
    aspect-ratio: 16/9;
    object-fit: cover;
    border-radius: 12px;
    margin-bottom: 16px;
  }

  .news-featured .badge {
    display: inline-block;
    background: rgba(200,255,62,0.1);
    color: var(--primary);
    font-size: 12px;
    font-weight: 600;
    padding: 2px 10px;
    border-radius: 999px;
    margin-bottom: 10px;
    letter-spacing: 0.3px;
  }

  .news-featured h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-main);
    line-height: 1.5;
    margin-bottom: 8px;
    transition: var(--transition);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

  .news-featured:hover h3 { color: var(--primary); }

  .news-featured .summary {
    font-size: 13px;
    color: var(--text-sub);
    line-height: 1.7;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 12px;
  }

  .news-featured .meta {
    font-size: 12px;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 8px;
  }

  .news-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
  }

  .news-item {
    display: flex;
    align-items: center;
    gap: 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 16px 18px;
    transition: var(--transition);
  }

  .news-item:hover {
    border-color: var(--border-hover);
    box-shadow: var(--shadow-card);
  }

  .news-item .news-thumb {
    width: 88px;
    height: 56px;
    border-radius: 8px;
    object-fit: cover;
    flex-shrink: 0;
  }

  .news-item .news-info {
    flex: 1;
    min-width: 0;
  }

  .news-item .news-info .badge {
    display: inline-block;
    background: rgba(200,255,62,0.1);
    color: var(--primary);
    font-size: 10px;
    font-weight: 600;
    padding: 1px 8px;
    border-radius: 999px;
    margin-bottom: 4px;
  }

  .news-item .news-info h4 {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-main);
    line-height: 1.4;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    transition: var(--transition);
  }

  .news-item:hover .news-info h4 { color: var(--primary); }

  .news-item .news-info .meta {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 2px;
  }

  .news-empty {
    grid-column: 1 / -1;
    text-align: center;
    padding: 64px 24px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
  }

  .news-empty i {
    font-size: 40px;
    color: var(--text-muted);
    margin-bottom: 16px;
  }

  .news-empty p {
    font-size: 14px;
    color: var(--text-sub);
    margin-bottom: 4px;
  }

  .news-empty .time {
    font-size: 12px;
    color: var(--text-muted);
  }

  /* ======= 品牌信任区 ======= */
  .trust-section {
    padding: 0 0 96px;
  }

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

  .trust-item {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 32px 24px;
    text-align: center;
    transition: var(--transition);
  }

  .trust-item:hover {
    border-color: var(--border-hover);
    transform: translateY(-2px);
  }

  .trust-item .num {
    font-size: 36px;
    font-weight: 700;
    color: var(--primary);
    line-height: 1.2;
    margin-bottom: 8px;
    font-variant-numeric: tabular-nums;
  }

  .trust-item .label {
    font-size: 14px;
    color: var(--text-sub);
  }

  /* ======= FAQ ======= */
  .faq-section {
    padding: 0 0 96px;
  }

  .faq-wrap {
    max-width: 760px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
  }

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

  .faq-item:hover {
    border-color: rgba(200,255,62,0.15);
  }

  .faq-item summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 20px 24px;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-main);
    cursor: pointer;
    list-style: none;
    transition: var(--transition);
  }

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

  .faq-item summary .icon {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: rgba(255,255,255,0.06);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    color: var(--text-sub);
    transition: transform 0.22s ease, background 0.22s ease, color 0.22s ease;
    flex-shrink: 0;
  }

  .faq-item[open] summary .icon {
    transform: rotate(45deg);
    background: rgba(200,255,62,0.12);
    color: var(--primary);
  }

  .faq-item[open] summary {
    color: var(--primary);
  }

  .faq-item .answer {
    padding: 0 24px 20px;
    font-size: 14px;
    color: var(--text-sub);
    line-height: 1.75;
  }

  /* ======= 底部 CTA ======= */
  .cta-section { padding: 0 0 96px; }

  .cta-block {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 56px 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
    flex-wrap: wrap;
  }

  .cta-block h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-main);
    line-height: 1.4;
    margin-bottom: 8px;
  }

  .cta-block p {
    font-size: 14px;
    color: var(--text-sub);
    line-height: 1.6;
  }

  /* ======= 页脚 ======= */
  .site-footer {
    background: #080C10;
    border-top: 1px solid rgba(255,255,255,0.06);
    padding: 64px 0 0;
  }

  .footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.4fr;
    gap: 40px;
    padding-bottom: 48px;
  }

  .footer-brand .logo-text { margin-top: 12px; display: block; }

  .footer-desc {
    font-size: 13px;
    color: var(--text-muted);
    margin-top: 16px;
    line-height: 1.7;
    max-width: 240px;
  }

  .footer-social {
    display: flex;
    gap: 10px;
    margin-top: 20px;
  }

  .footer-social a {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(255,255,255,0.06);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    color: var(--text-sub);
    transition: var(--transition);
  }

  .footer-social a:hover {
    background: var(--primary);
    color: #0B0F14;
  }

  .footer-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 16px;
  }

  .footer-links {
    display: flex;
    flex-direction: column;
    gap: 0;
  }

  .footer-links a {
    font-size: 13px;
    color: var(--text-sub);
    line-height: 32px;
    transition: var(--transition);
  }

  .footer-links a:hover { color: var(--primary); }

  .footer-subscribe p {
    font-size: 13px;
    color: var(--text-sub);
    line-height: 1.6;
    margin-bottom: 12px;
  }

  .footer-subscribe .footer-form {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
  }

  .footer-subscribe .footer-form input {
    flex: 1;
    min-width: 160px;
    height: 40px;
    background: var(--bg-base);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 0 14px;
    font-size: 13px;
    color: var(--text-main);
    transition: var(--transition);
  }

  .footer-subscribe .footer-form input::placeholder {
    color: var(--text-muted);
  }

  .footer-subscribe .footer-form input:focus {
    border-color: var(--primary);
  }

  .footer-contact {
    margin-top: 16px;
    font-size: 13px;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 8px;
  }

  .footer-contact i { font-size: 14px; }

  .copyright {
    border-top: 1px solid rgba(255,255,255,0.05);
    padding: 20px 0;
    text-align: center;
    font-size: 12px;
    color: var(--text-muted);
  }

  /* ======= 响应式 ======= */
  @media (max-width: 1024px) {
    .highlights-grid { grid-template-columns: repeat(2, 1fr); }
    .trust-grid { grid-template-columns: repeat(2, 1fr); }
    .news-layout { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .main-nav { gap: 20px; }
    .search-box { width: 200px; }
    .search-box:focus-within { width: 240px; }
  }

  @media (max-width: 768px) {
    .section { padding: 64px 0; }
    .countdown-section { padding: 0 0 64px; }
    .highlights-section { padding: 0 0 64px; }
    .subscribe-section { padding: 0 0 64px; }
    .news-section { padding: 0 0 64px; }
    .trust-section { padding: 0 0 64px; }
    .faq-section { padding: 0 0 64px; }
    .cta-section { padding: 0 0 64px; }
    .hero { min-height: 520px; padding: 100px 0 64px; }
    .hero h1 { font-size: 32px; }
    .hero-sub { font-size: 15px; }
    .hero-social { display: none; }
    .hero-cta { flex-direction: column; align-items: stretch; }
    .hero-cta .btn { width: 100%; }
    .countdown-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
    .countdown-item + .countdown-item::before { display: none; }
    .countdown-item .num { font-size: 40px; }
    .subscribe-block { flex-direction: column; padding: 32px 24px; gap: 24px; }
    .subscribe-form { width: 100%; flex-direction: column; }
    .subscribe-form input { width: 100%; }
    .subscribe-form .btn { width: 100%; }
    .main-nav { display: none; }
    .header-right .search-box { display: none; }
    .menu-toggle { display: flex; }
    .header-right .btn-login { display: none; }
    .header-right .btn-primary { font-size: 13px; padding: 8px 16px; }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
    .footer-desc { max-width: 100%; }
    .cta-block { padding: 40px 24px; flex-direction: column; text-align: center; }
    .cta-block .btn { width: 100%; max-width: 280px; }
    .section-head h2 { font-size: 24px; }
    .highlights-grid { grid-template-columns: 1fr; }
    .trust-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
    .trust-item { padding: 24px 16px; }
    .news-item { flex-direction: column; align-items: flex-start; }
    .news-item .news-thumb { width: 100%; height: auto; aspect-ratio: 16/9; }
    .countdown-card { padding: 24px 16px; }
    .countdown-head { margin-bottom: 20px; }
  }

  @media (max-width: 520px) {
    .container { padding-left: 14px; padding-right: 14px; }
    .trust-grid { grid-template-columns: 1fr; }
    .news-featured { padding: 14px; }
    .news-featured h3 { font-size: 16px; }
    .countdown-item { padding: 14px 8px; }
    .countdown-item .num { font-size: 32px; }
    .hero { padding-top: 90px; min-height: 480px; }
  }

  .section-divider {
    border: none;
    height: 1px;
    background: rgba(255,255,255,0.06);
    margin: 0;
  }

/* roulang page: article */
:root {
  --bg: #0B0F14;
  --bg-secondary: #111720;
  --bg-hover: #0E131A;
  --primary: #C8FF3E;
  --primary-hover: #D8FF6B;
  --primary-active: #B2E632;
  --accent: #FFB547;
  --text: #F2F5F7;
  --text-secondary: #9AA7B4;
  --text-muted: #5D6B78;
  --border: rgba(255,255,255,0.08);
  --border-hover: rgba(200,255,62,0.4);
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-pill: 999px;
  --shadow-hover: 0 0 0 1px rgba(200,255,62,0.25), 0 12px 32px rgba(0,0,0,0.35);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color 0.22s ease, border-color 0.22s ease, background 0.22s ease, opacity 0.22s ease, transform 0.22s ease; }
button { font-family: inherit; cursor: pointer; }
input, textarea { font-family: inherit; }
:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.container-narrow { max-width: 760px; }

/* Header */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(11,15,20,0.82);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  height: 72px;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 72px;
}
.logo-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-icon {
  width: 36px; height: 36px;
  border-radius: 10px;
  background: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.logo-icon svg {
  width: 20px; height: 20px;
  fill: none;
  stroke: #0B0F14;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.logo-text {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.01em;
  white-space: nowrap;
}
.logo-text span { color: var(--primary); }
.main-nav {
  display: flex;
  align-items: center;
  gap: 32px;
  margin: 0 auto;
}
.main-nav a {
  font-size: 14px;
  color: var(--text-secondary);
  font-weight: 500;
  position: relative;
  padding: 8px 0;
  transition: color 0.22s ease;
}
.main-nav a:hover { color: var(--text); }
.main-nav a.active { color: var(--text); }
.main-nav a.active::after {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 2px;
  background: var(--primary);
  border-radius: 0;
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.command-search {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 260px;
  height: 36px;
  padding: 0 12px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 10px;
  transition: all 0.22s ease;
}
.command-search:hover { border-color: rgba(255,255,255,0.2); }
.command-search:focus-within {
  width: 320px;
  border-color: var(--primary);
  background: var(--bg-secondary);
}
.command-search svg { width: 16px; height: 16px; color: var(--text-secondary); flex-shrink: 0; }
.command-search input {
  flex: 1;
  min-width: 0;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text);
  font-size: 13px;
}
.command-search input::placeholder { color: var(--text-muted); }
.command-search .kbd {
  font-size: 10px;
  color: var(--text-muted);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 6px;
  padding: 2px 6px;
  white-space: nowrap;
  flex-shrink: 0;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 700;
  border-radius: 999px;
  padding: 12px 24px;
  border: none;
  transition: all 0.22s ease;
  cursor: pointer;
  text-decoration: none;
  line-height: 1;
}
.btn-primary {
  background: var(--primary);
  color: #0B0F14;
}
.btn-primary:hover { background: var(--primary-hover); transform: translateY(-1px); }
.btn-primary:active { background: var(--primary-active); transform: translateY(0); }
.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid rgba(255,255,255,0.2);
}
.btn-ghost:hover { border-color: var(--primary); color: var(--primary); }
.btn-sm { padding: 9px 18px; font-size: 13px; }
.menu-toggle {
  display: none;
  background: transparent;
  border: none;
  padding: 8px;
  border-radius: 8px;
}
.menu-toggle span {
  display: block;
  width: 18px; height: 2px;
  background: var(--text);
  border-radius: 2px;
  margin: 3px 0;
  transition: transform 0.22s ease, opacity 0.22s ease;
}

/* Mobile menu */
.mobile-menu {
  display: none;
}

/* Hero (article header) */
.article-header {
  padding: 160px 0 48px;
  background: linear-gradient(180deg, rgba(11,15,20,0) 0%, rgba(11,15,20,0.72) 100%), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  border-bottom: 1px solid var(--border);
}
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 20px;
  flex-wrap: wrap;
}
.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .sep { color: rgba(255,255,255,0.24); }
.breadcrumb .current { color: var(--text-secondary); }
.article-meta-top { margin-bottom: 16px; }
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 22px;
  padding: 0 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  white-space: nowrap;
}
.badge-category {
  background: rgba(200,255,62,0.1);
  color: var(--primary);
}
.article-header h1 {
  font-size: 44px;
  line-height: 1.3;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 20px;
  letter-spacing: -0.01em;
}
.article-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 28px;
  flex-wrap: wrap;
}
.article-meta .dot { color: var(--text-muted); }
.article-meta .author { color: var(--text-secondary); }
.article-excerpt {
  border-left: 2px solid var(--primary);
  padding: 4px 0 4px 20px;
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-top: 8px;
}

/* Article body */
.article-section {
  padding: 64px 0 32px;
}
.article-content {
  font-size: 16px;
  line-height: 1.9;
  color: var(--text);
  max-width: 760px;
  margin: 0 auto;
}
.article-content p {
  margin-bottom: 20px;
  color: rgba(242,245,247,0.92);
}
.article-content h2 {
  font-size: 22px;
  font-weight: 700;
  line-height: 1.4;
  margin: 40px 0 16px;
  padding: 0 0 8px 8px;
  border-bottom: 1px solid var(--border);
  color: var(--text);
}
.article-content h3 {
  font-size: 18px;
  font-weight: 600;
  line-height: 1.4;
  margin: 32px 0 12px;
  padding-left: 8px;
  border-left: 3px solid var(--primary);
  color: var(--text);
}
.article-content h4 {
  font-size: 16px;
  font-weight: 600;
  margin: 24px 0 12px;
  color: var(--text);
}
.article-content ul,
.article-content ol {
  margin: 0 0 20px;
  padding-left: 24px;
  color: rgba(242,245,247,0.92);
}
.article-content ul { list-style: disc; }
.article-content ol { list-style: decimal; }
.article-content li {
  margin-bottom: 8px;
  line-height: 1.7;
}
.article-content a {
  color: var(--primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.article-content a:hover { color: var(--primary-hover); }
.article-content blockquote {
  background: var(--bg-secondary);
  border-left: 3px solid var(--primary);
  border-radius: 0 12px 12px 0;
  padding: 20px 24px;
  margin: 24px 0;
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.75;
}
.article-content blockquote p { margin-bottom: 0; color: var(--text-secondary); }
.article-content img {
  max-width: 100%;
  border-radius: 12px;
  margin: 24px 0;
  height: auto;
}
.article-content figure {
  margin: 24px 0;
}
.article-content figure img { margin-bottom: 8px; }
.article-content figcaption {
  font-size: 12px;
  color: var(--text-muted);
  text-align: center;
}
.article-content pre {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  overflow-x: auto;
  margin: 24px 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-secondary);
}
.article-content code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 14px;
  background: rgba(255,255,255,0.08);
  border-radius: 4px;
  padding: 2px 6px;
}
.article-content pre code {
  background: transparent;
  padding: 0;
}
.article-content hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 32px 0;
}
.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 14px;
}
.article-content th,
.article-content td {
  border: 1px solid var(--border);
  padding: 10px 14px;
  text-align: left;
}
.article-content th {
  background: var(--bg-secondary);
  font-weight: 600;
  color: var(--text);
}

/* Not found */
.article-notfound {
  text-align: center;
  padding: 80px 24px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 16px;
}
.article-notfound p {
  font-size: 18px;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

/* Tags after article */
.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 40px;
}
.tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 500;
  background: rgba(255,255,255,0.06);
  color: var(--text-secondary);
  border: 1px solid var(--border);
}
.tag:hover { border-color: var(--border-hover); color: var(--primary); }

/* Related */
.related-section {
  padding: 56px 0 16px;
  border-top: 1px solid rgba(255,255,255,0.06);
}
.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 32px;
}
.section-head h2 {
  font-size: 32px;
  font-weight: 700;
  color: var(--text);
}
.section-link {
  font-size: 14px;
  color: var(--text-secondary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.section-link:hover { color: var(--primary); }
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.related-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  transition: all 0.22s ease;
  display: block;
}
.related-card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}
.related-thumb {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: rgba(200,255,62,0.05);
}
.related-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}
.related-card:hover .related-thumb img { transform: scale(1.03); }
.related-info { padding: 20px; }
.related-info h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  line-height: 1.5;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.related-card:hover .related-info h3 { color: var(--primary); }
.related-date {
  font-size: 12px;
  color: var(--text-muted);
}

/* Back section */
.back-section {
  padding: 56px 0 80px;
  text-align: center;
}

/* CTA block */
.cta-section {
  padding: 32px 0 80px;
}
.cta-block {
  background: var(--bg-secondary);
  border-radius: 20px;
  padding: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}
.cta-block::before {
  content: '';
  position: absolute;
  right: -40px; bottom: -40px;
  width: 220px; height: 220px;
  background: radial-gradient(circle, rgba(200,255,62,0.08) 0%, transparent 70%);
  pointer-events: none;
}
.cta-title {
  font-size: 24px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
}
.cta-sub {
  font-size: 14px;
  color: var(--text-secondary);
}

/* Footer */
.site-footer {
  background: #080C10;
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 64px 0 0;
  margin-top: 40px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 48px;
}
.footer-desc {
  font-size: 13px;
  color: var(--text-muted);
  margin: 12px 0 16px;
  max-width: 220px;
  line-height: 1.6;
}
.footer-social {
  display: flex;
  gap: 12px;
}
.footer-social a {
  width: 36px; height: 36px;
  border: 1px solid var(--border);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 15px;
}
.footer-social a:hover {
  border-color: var(--primary);
  color: var(--primary);
}
.footer-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 20px;
}
.footer-links {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.footer-links a {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 24px;
}
.footer-links a:hover { color: var(--primary); }
.footer-subscribe p {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 16px;
  line-height: 1.6;
}
.footer-form {
  display: flex;
  gap: 8px;
  margin-bottom: 20px;
}
.footer-form input {
  flex: 1;
  min-width: 0;
  height: 40px;
  padding: 0 14px;
  background: var(--bg);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 10px;
  color: var(--text);
  font-size: 13px;
  outline: none;
  transition: border-color 0.22s ease;
}
.footer-form input:focus { border-color: var(--primary); }
.footer-form input::placeholder { color: var(--text-muted); }
.footer-contact {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-muted);
}
.footer-contact i { font-size: 14px; }
.copyright {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 24px 0;
  text-align: center;
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Responsive */
@media (max-width: 1024px) {
  .command-search { width: 200px; }
  .command-search:focus-within { width: 240px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .related-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .container { padding: 0 16px; }
  .main-nav { display: none; }
  .header-actions .command-search { display: none; }
  .header-actions .btn-ghost { display: none; }
  .menu-toggle { display: block; }
  .mobile-menu.open { display: block; }
  .mobile-menu {
    position: fixed;
    top: 72px; left: 0; right: 0; bottom: 0;
    background: var(--bg);
    z-index: 99;
    padding: 32px 24px;
    overflow-y: auto;
  }
  .mobile-nav {
    display: flex;
    flex-direction: column;
    gap: 8px;
  }
  .mobile-nav a {
    font-size: 20px;
    color: var(--text-secondary);
    padding: 14px 0;
    border-bottom: 1px solid rgba(255,255,255,0.06);
  }
  .mobile-nav a.active { color: var(--primary); }
  .article-header { padding: 140px 0 32px; }
  .article-header h1 { font-size: 28px; line-height: 1.3; }
  .article-excerpt { font-size: 14px; padding-left: 16px; }
  .related-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .cta-block { flex-direction: column; padding: 32px 24px; text-align: center; }
  .section-head h2 { font-size: 24px; }
}
@media (max-width: 520px) {
  .header-actions .btn-primary { padding: 9px 14px; font-size: 12px; }
  .footer-form { flex-direction: column; }
  .footer-form .btn { width: 100%; }
}

/* roulang page: category1 */
/* ===== 设计令牌 / Design Tokens ===== */
        :root {
            --bg-primary: #0B0F14;
            --bg-secondary: #111720;
            --bg-hover: #0E131A;
            --bg-deep: #080C10;
            --accent-primary: #C8FF3E;
            --accent-primary-hover: #D8FF6B;
            --accent-primary-active: #B2E632;
            --accent-secondary: #FFB547;
            --text-primary: #F2F5F7;
            --text-secondary: #9AA7B4;
            --text-muted: #5D6B78;
            --border-subtle: rgba(255,255,255,0.08);
            --border-strong: rgba(255,255,255,0.12);
            --border-accent: rgba(200,255,62,0.4);
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-pill: 999px;
            --shadow-hover: 0 0 0 1px rgba(200,255,62,0.25), 0 12px 32px rgba(0,0,0,0.35);
            --font-family: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            --header-height: 72px;
        }

        /* ===== 基础 Reset ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            font-size: 16px;
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.22s ease;
        }

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

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

        /* ===== 容器 ===== */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== Header ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            height: var(--header-height);
            background: rgba(11, 15, 20, 0.82);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 24px;
        }

        /* Logo */
        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 32px;
            height: 32px;
            background: var(--accent-primary);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .logo-icon svg {
            width: 22px;
            height: 22px;
            stroke: #0B0F14;
            fill: none;
            stroke-linecap: round;
            stroke-linejoin: round;
        }

        .logo-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.5px;
            line-height: 1.2;
            white-space: nowrap;
        }

        .logo-text span {
            color: var(--accent-primary);
        }

        /* 中间导航 */
        .main-nav {
            display: flex;
            align-items: center;
            gap: 32px;
            margin: 0 auto;
        }

        .main-nav a {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 6px 0;
            position: relative;
            transition: color 0.22s ease;
            line-height: 1.4;
            white-space: nowrap;
        }

        .main-nav a:hover {
            color: var(--text-primary);
        }

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

        .main-nav a.active::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 100%;
            height: 2px;
            background: var(--accent-primary);
            border-radius: 2px;
        }

        /* 右侧操作区 */
        .header-right {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-shrink: 0;
        }

        /* 命令搜索框 */
        .command-search {
            display: flex;
            align-items: center;
            width: 260px;
            height: 36px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 10px;
            padding: 0 12px;
            gap: 8px;
            transition: all 0.22s ease;
        }

        .command-search:focus-within {
            width: 320px;
            border-color: var(--accent-primary);
            background: var(--bg-secondary);
        }

        .command-search .search-icon {
            color: var(--text-secondary);
            font-size: 13px;
            flex-shrink: 0;
        }

        .command-search input {
            flex: 1;
            color: var(--text-primary);
            font-size: 13px;
            min-width: 0;
            background: transparent;
        }

        .command-search input::placeholder {
            color: var(--text-muted);
        }

        .command-search .kbd {
            font-size: 10px;
            color: var(--text-muted);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 6px;
            padding: 1px 6px;
            white-space: nowrap;
            flex-shrink: 0;
        }

        /* 登录 + 主 CTA */
        .header-login {
            display: inline-flex;
            align-items: center;
        }

        .header-subscribe {
            display: inline-flex;
            align-items: center;
        }

        /* 移动端菜单按钮 */
        .mobile-menu-btn {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            align-items: center;
            justify-content: center;
            color: var(--text-primary);
            font-size: 18px;
            border: 1px solid var(--border-subtle);
            background: rgba(255, 255, 255, 0.04);
            transition: all 0.22s ease;
        }

        .mobile-menu-btn:hover {
            border-color: var(--border-accent);
            color: var(--accent-primary);
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 700;
            border-radius: var(--radius-pill);
            padding: 12px 24px;
            transition: all 0.22s ease;
            line-height: 1.6;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--accent-primary);
            color: #0B0F14;
        }

        .btn-primary:hover {
            background: var(--accent-primary-hover);
            transform: translateY(-1px);
        }

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

        .btn-primary:focus-visible {
            outline: 2px solid var(--accent-primary);
            outline-offset: 2px;
        }

        .btn-ghost {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: var(--text-primary);
        }

        .btn-ghost:hover {
            border-color: var(--accent-primary);
            color: var(--accent-primary);
        }

        .btn-ghost:focus-visible {
            outline: 2px solid var(--accent-primary);
            outline-offset: 2px;
        }

        .btn-sm {
            padding: 8px 20px;
            font-size: 13px;
        }

        .btn-primary .btn-arrow {
            font-size: 11px;
            transition: transform 0.22s ease;
        }

        .btn-primary:hover .btn-arrow {
            transform: translateX(2px);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-deep);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 64px 0 0;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 48px;
            padding-bottom: 48px;
        }

        .footer-brand .logo-wrap {
            margin-bottom: 16px;
        }

        .footer-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 24px;
        }

        .footer-social {
            display: flex;
            gap: 12px;
        }

        .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-secondary);
            font-size: 15px;
            transition: all 0.22s ease;
        }

        .footer-social a:hover {
            background: rgba(200, 255, 62, 0.12);
            color: var(--accent-primary);
            border-color: var(--border-accent);
        }

        .footer-title {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-links a {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
            transition: color 0.22s ease;
        }

        .footer-links a:hover {
            color: var(--accent-primary);
        }

        .footer-subscribe p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .footer-form {
            display: flex;
            gap: 8px;
            margin-bottom: 20px;
        }

        .footer-form input {
            flex: 1;
            height: 44px;
            background: var(--bg-primary);
            border: 1px solid var(--border-strong);
            border-radius: var(--radius-md);
            padding: 0 16px;
            font-size: 13px;
            color: var(--text-primary);
            transition: border-color 0.22s ease;
            min-width: 0;
        }

        .footer-form input:focus {
            border-color: var(--accent-primary);
        }

        .footer-form input::placeholder {
            color: var(--text-muted);
        }

        .footer-form button {
            height: 44px;
            padding: 0 22px;
            border-radius: var(--radius-pill);
            font-size: 13px;
            font-weight: 700;
            background: var(--accent-primary);
            color: #0B0F14;
            transition: all 0.22s ease;
            flex-shrink: 0;
        }

        .footer-form button:hover {
            background: var(--accent-primary-hover);
        }

        .footer-contact {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            color: var(--text-muted);
        }

        .footer-contact i {
            color: var(--accent-secondary);
        }

        .copyright {
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding: 20px 0;
            text-align: center;
            font-size: 12px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ===== 区块通用 ===== */
        .section-padding {
            padding: 96px 0;
        }

        /* ===== Hero 窄横幅 ===== */
        .cat-hero {
            position: relative;
            min-height: 300px;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            display: flex;
            align-items: center;
            padding-top: var(--header-height);
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(11, 15, 20, 0.30) 0%, rgba(11, 15, 20, 0.72) 100%);
        }

        .hero-content {
            position: relative;
            z-index: 2;
            padding-top: 40px;
            padding-bottom: 48px;
            max-width: 720px;
        }

        .cat-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(200, 255, 62, 0.1);
            border: 1px solid rgba(200, 255, 62, 0.25);
            color: var(--accent-primary);
            font-size: 12px;
            font-weight: 600;
            border-radius: var(--radius-pill);
            padding: 4px 14px;
            margin-bottom: 20px;
            letter-spacing: 0.4px;
        }

        .cat-badge::before {
            content: "";
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent-primary);
        }

        .cat-hero h1 {
            font-size: 48px;
            font-weight: 700;
            line-height: 1.2;
            color: var(--text-primary);
            margin-bottom: 14px;
            letter-spacing: -0.5px;
        }

        .cat-hero .hero-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 480px;
        }

        /* ===== 核心介绍：左侧大图 + 右侧两栏 ===== */
        .cat-intro {
            background: var(--bg-primary);
        }

        .cat-media-grid {
            display: grid;
            grid-template-columns: 1fr 1.25fr;
            gap: 56px;
            align-items: center;
        }

        .cat-image-block {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-subtle);
            aspect-ratio: 4 / 3;
        }

        .cat-image-block img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.45s ease;
        }

        .cat-image-block:hover img {
            transform: scale(1.03);
        }

        .cat-image-tag {
            position: absolute;
            left: 16px;
            bottom: 16px;
            background: rgba(11, 15, 20, 0.85);
            border: 1px solid var(--border-subtle);
            backdrop-filter: blur(8px);
            color: var(--text-primary);
            font-size: 12px;
            font-weight: 600;
            border-radius: var(--radius-pill);
            padding: 6px 14px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .cat-image-tag i {
            color: var(--accent-secondary);
            font-size: 10px;
        }

        .two-col-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
        }

        .two-col-grid .col h2 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 14px;
            line-height: 1.4;
            position: relative;
            padding-left: 14px;
        }

        .two-col-grid .col h2::before {
            content: "";
            position: absolute;
            left: 0;
            top: 4px;
            bottom: 4px;
            width: 3px;
            background: var(--accent-primary);
            border-radius: 3px;
        }

        .two-col-grid .col p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.85;
        }

        /* ===== 流程区块 ===== */
        .cat-process {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
        }

        .section-head {
            margin-bottom: 48px;
        }

        .section-head h2 {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .section-head p {
            font-size: 14px;
            color: var(--text-secondary);
            max-width: 560px;
            line-height: 1.7;
        }

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

        .process-step {
            background: var(--bg-primary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 32px 24px 24px;
            position: relative;
            transition: all 0.22s ease;
        }

        .process-step:hover {
            border-color: var(--border-accent);
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .step-num {
            font-size: 14px;
            font-weight: 700;
            color: var(--accent-secondary);
            letter-spacing: 1px;
            display: block;
            margin-bottom: 8px;
        }

        .step-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: rgba(200, 255, 62, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-primary);
            font-size: 18px;
            margin-bottom: 18px;
        }

        .step-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }

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

        /* ===== 数据区块 ===== */
        .cat-stats {
            background: var(--bg-primary);
        }

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

        .stat-item {
            text-align: center;
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 36px 20px;
            transition: all 0.22s ease;
        }

        .stat-item:hover {
            border-color: var(--border-accent);
            box-shadow: var(--shadow-hover);
        }

        .stat-number {
            font-size: 48px;
            font-weight: 700;
            color: var(--accent-primary);
            line-height: 1.2;
            font-variant-numeric: tabular-nums;
            margin-bottom: 8px;
        }

        .stat-label {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.5;
        }

        /* ===== FAQ ===== */
        .cat-faq {
            background: var(--bg-primary);
        }

        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .faq-item {
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: border-color 0.22s ease;
        }

        .faq-item:hover {
            border-color: var(--border-accent);
        }

        .faq-item summary {
            list-style: none;
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 20px 24px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            transition: color 0.22s ease;
            user-select: none;
        }

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

        .faq-item summary .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(200, 255, 62, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-primary);
            font-size: 12px;
            flex-shrink: 0;
            transition: transform 0.3s ease;
        }

        .faq-item details[open] summary .faq-icon {
            transform: rotate(45deg);
        }

        .faq-item summary:hover {
            color: var(--accent-primary);
        }

        .faq-item .faq-body {
            padding: 0 24px 20px 68px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
        }

        /* ===== 底部 CTA ===== */
        .cat-cta {
            background: var(--bg-primary);
        }

        .cta-banner {
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: 20px;
            padding: 56px 64px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            position: relative;
            overflow: hidden;
        }

        .cta-banner::before {
            content: "";
            position: absolute;
            right: -60px;
            bottom: -60px;
            width: 240px;
            height: 240px;
            background: radial-gradient(circle, rgba(200, 255, 62, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-banner h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.4;
            margin-bottom: 8px;
        }

        .cta-banner p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        .cta-banner .btn {
            flex-shrink: 0;
            position: relative;
            z-index: 2;
        }

        /* ===== 焦点可见性 ===== */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        summary:focus-visible {
            outline: 2px solid var(--accent-primary);
            outline-offset: 2px;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .container {
                padding-left: 20px;
                padding-right: 20px;
            }

            .command-search {
                width: 200px;
            }

            .command-search:focus-within {
                width: 240px;
            }

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

            .footer-subscribe {
                grid-column: span 1;
            }

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

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

        @media (max-width: 768px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .main-nav {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: var(--bg-primary);
                flex-direction: column;
                align-items: flex-start;
                gap: 24px;
                padding: 32px 24px;
                border-bottom: 1px solid var(--border-subtle);
                display: none;
                z-index: 99;
                box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
            }

            .main-nav.open {
                display: flex;
            }

            .main-nav a {
                font-size: 20px;
                line-height: 1.4;
            }

            .main-nav a.active::after {
                display: none;
            }

            .main-nav a.active {
                color: var(--accent-primary);
            }

            .header-right {
                gap: 10px;
            }

            .command-search {
                width: 40px;
                height: 40px;
                padding: 0;
                justify-content: center;
                border-radius: 10px;
                background: rgba(255, 255, 255, 0.06);
                border-color: var(--border-subtle);
            }

            .command-search input,
            .command-search .kbd {
                display: none;
            }

            .command-search:focus-within {
                width: 100%;
                position: absolute;
                left: 16px;
                right: 16px;
                top: 72px;
                z-index: 120;
                padding: 0 16px;
                box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
            }

            .command-search:focus-within input {
                display: block;
            }

            .command-search:focus-within .kbd {
                display: inline-block;
            }

            .command-search.search-expanded {
                width: calc(100% - 32px);
                position: absolute;
                left: 16px;
                right: 16px;
                top: 72px;
                padding: 0 16px;
                z-index: 120;
                background: var(--bg-secondary);
                border-color: var(--accent-primary);
            }

            .command-search.search-expanded input {
                display: block;
            }

            .command-search.search-expanded .kbd {
                display: inline-block;
            }

            .header-login,
            .header-subscribe {
                display: none;
            }

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

            .cat-hero h1 {
                font-size: 28px;
                line-height: 1.25;
            }

            .cat-media-grid,
            .two-col-grid {
                grid-template-columns: 1fr;
            }

            .cat-image-block {
                aspect-ratio: 16 / 10;
            }

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

            .section-head h2 {
                font-size: 22px;
            }

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

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }

            .stat-number {
                font-size: 36px;
            }

            .cta-banner {
                flex-direction: column;
                align-items: flex-start;
                padding: 40px 28px;
                gap: 24px;
            }

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

            .footer-brand {
                grid-column: span 2;
            }

            .footer-subscribe {
                grid-column: span 2;
            }
        }

        @media (max-width: 520px) {
            .stats-grid {
                grid-template-columns: 1fr;
            }

            .cat-hero {
                min-height: 260px;
            }

            .cat-hero h1 {
                font-size: 24px;
            }

            .cta-banner {
                padding: 32px 20px;
            }

            .cta-banner h2 {
                font-size: 20px;
            }
        }

/* roulang page: category2 */
:root {
      --bg-primary: #0B0F14;
      --bg-secondary: #111720;
      --bg-hover: #0E131A;
      --accent: #C8FF3E;
      --accent-hover: #D8FF6B;
      --accent-active: #B2E632;
      --accent-dim: rgba(200, 255, 62, 0.4);
      --amber: #FFB547;
      --error: #FF5C5C;
      --success: #34D399;
      --text-primary: #F2F5F7;
      --text-secondary: #9AA7B4;
      --text-muted: #5D6B78;
      --border-color: rgba(255, 255, 255, 0.08);
      --border-hover: rgba(200, 255, 62, 0.4);
      --radius-lg: 16px;
      --radius-md: 12px;
      --radius-sm: 8px;
      --radius-full: 999px;
      --shadow-hover: 0 0 0 1px rgba(200, 255, 62, 0.25), 0 12px 32px rgba(0, 0, 0, 0.35);
      --transition: 0.22s ease;
      --header-height: 72px;
      --container-width: 1200px;
    }

    /* ===== Reset & Base ===== */
    *,
    *::before,
    *::after {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      font-family: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
      background: var(--bg-primary);
      color: var(--text-primary);
      line-height: 1.8;
      font-size: 16px;
      -webkit-font-smoothing: antialiased;
    }
    a {
      color: inherit;
      text-decoration: none;
    }
    img {
      max-width: 100%;
      display: block;
    }
    input,
    button {
      font-family: inherit;
      border: none;
      outline: none;
      background: none;
    }
    ul,
    ol {
      list-style: none;
    }
    :focus-visible {
      outline: 2px solid var(--accent);
      outline-offset: 2px;
      border-radius: 4px;
    }
    .container {
      max-width: var(--container-width);
      margin: 0 auto;
      padding-left: 24px;
      padding-right: 24px;
    }

    /* ===== Buttons ===== */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      border-radius: var(--radius-full);
      font-size: 14px;
      font-weight: 700;
      padding: 12px 24px;
      line-height: 1;
      cursor: pointer;
      transition: var(--transition);
      white-space: nowrap;
    }
    .btn-primary {
      background: var(--accent);
      color: var(--bg-primary);
    }
    .btn-primary:hover {
      background: var(--accent-hover);
      transform: translateY(-1px);
    }
    .btn-primary:active {
      background: var(--accent-active);
      transform: translateY(0);
    }
    .btn-ghost {
      background: transparent;
      border: 1px solid rgba(255, 255, 255, 0.2);
      color: var(--text-primary);
    }
    .btn-ghost:hover {
      border-color: var(--accent);
      color: var(--accent);
    }
    .btn-sm {
      padding: 10px 20px;
      font-size: 13px;
    }
    .btn-lg {
      padding: 15px 34px;
      font-size: 15px;
    }
    .btn .arrow-ico {
      font-size: 11px;
      transition: transform 0.2s ease;
    }
    .btn-primary:hover .arrow-ico {
      transform: translateX(3px);
    }

    /* ===== Header ===== */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      height: var(--header-height);
      background: rgba(11, 15, 20, 0.82);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }
    .header-inner {
      display: flex;
      align-items: center;
      height: 100%;
      gap: 24px;
    }
    .logo-wrap {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-shrink: 0;
    }
    .logo-icon {
      width: 24px;
      height: 24px;
      background: var(--accent);
      border-radius: 6px;
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .logo-icon svg {
      width: 16px;
      height: 16px;
      fill: none;
      stroke: #0B0F14;
      stroke-width: 1.8;
      stroke-linecap: round;
    }
    .logo-text {
      font-size: 18px;
      font-weight: 700;
      color: var(--text-primary);
      letter-spacing: -0.5px;
    }
    .logo-text span {
      color: var(--accent);
    }

    .main-nav {
      display: flex;
      align-items: center;
      gap: 32px;
      margin: 0 auto;
    }
    .main-nav a {
      font-size: 14px;
      color: var(--text-secondary);
      font-weight: 500;
      padding: 8px 2px;
      position: relative;
      transition: var(--transition);
    }
    .main-nav a:hover {
      color: var(--text-primary);
    }
    .main-nav a.active {
      color: var(--text-primary);
      font-weight: 600;
    }
    .main-nav a.active::after {
      content: "";
      position: absolute;
      left: 0;
      right: 0;
      bottom: -2px;
      height: 2px;
      background: var(--accent);
      border-radius: 2px;
    }

    .header-actions {
      display: flex;
      align-items: center;
      gap: 14px;
      flex-shrink: 0;
    }
    .cmd-search {
      display: flex;
      align-items: center;
      width: 260px;
      height: 36px;
      border-radius: 10px;
      background: rgba(255, 255, 255, 0.06);
      border: 1px solid rgba(255, 255, 255, 0.1);
      padding: 0 12px;
      gap: 8px;
      transition: var(--transition);
    }
    .cmd-search:focus-within {
      width: 320px;
      border-color: var(--accent);
      background: var(--bg-secondary);
    }
    .cmd-search svg {
      width: 16px;
      height: 16px;
      color: var(--text-secondary);
      flex-shrink: 0;
    }
    .cmd-search input {
      flex: 1;
      min-width: 0;
      color: var(--text-primary);
      font-size: 13px;
      background: transparent;
    }
    .cmd-search input::placeholder {
      color: var(--text-muted);
    }
    .cmd-kbd {
      font-size: 10px;
      border: 1px solid rgba(255, 255, 255, 0.14);
      border-radius: 6px;
      padding: 2px 6px;
      color: var(--text-muted);
      flex-shrink: 0;
    }

    .menu-toggle {
      display: none;
      flex-direction: column;
      gap: 5px;
      width: 38px;
      height: 38px;
      align-items: center;
      justify-content: center;
      border-radius: 10px;
      border: 1px solid var(--border-color);
      cursor: pointer;
      flex-shrink: 0;
    }
    .menu-toggle span {
      width: 18px;
      height: 2px;
      background: var(--text-primary);
      border-radius: 2px;
      transition: var(--transition);
    }
    .menu-toggle.open span:nth-child(1) {
      transform: translateY(7px) rotate(45deg);
    }
    .menu-toggle.open span:nth-child(2) {
      opacity: 0;
    }
    .menu-toggle.open span:nth-child(3) {
      transform: translateY(-7px) rotate(-45deg);
    }

    /* ===== Category Hero ===== */
    .category-hero {
      position: relative;
      min-height: 300px;
      display: flex;
      align-items: center;
      background-color: var(--bg-secondary);
      background-image: linear-gradient(180deg, rgba(11, 15, 20, 0) 0%, rgba(11, 15, 20, 0.72) 100%), url('/assets/images/backpic/back-2.webp');
      background-size: cover;
      background-position: center 28%;
      border-bottom: 1px solid var(--border-color);
      padding: 72px 0;
    }
    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 12px;
      font-weight: 600;
      color: var(--accent);
      background: rgba(200, 255, 62, 0.1);
      border-radius: var(--radius-full);
      padding: 6px 16px;
      margin-bottom: 18px;
    }
    .hero-badge .dot {
      width: 6px;
      height: 6px;
      background: var(--amber);
      border-radius: 50%;
    }
    .category-hero h1 {
      font-size: 48px;
      font-weight: 700;
      line-height: 1.2;
      color: var(--text-primary);
      margin-bottom: 14px;
    }
    .category-hero h1 em {
      font-style: normal;
      color: var(--accent);
    }
    .hero-sub {
      font-size: 16px;
      color: var(--text-secondary);
      max-width: 560px;
      line-height: 1.7;
    }

    /* ===== Section Block ===== */
    .section-block {
      padding: 96px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    }
    .section-head {
      max-width: 720px;
      margin-bottom: 48px;
    }
    .section-head h2 {
      font-size: 32px;
      font-weight: 700;
      line-height: 1.3;
      margin-bottom: 12px;
      color: var(--text-primary);
    }
    .section-head p {
      font-size: 15px;
      color: var(--text-secondary);
      line-height: 1.7;
    }

    /* ===== Guide Accordion ===== */
    .accordion-list {
      max-width: 860px;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .guide-accordion {
      background: var(--bg-secondary);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      overflow: hidden;
      transition: border-color 0.22s ease, box-shadow 0.22s ease;
    }
    .guide-accordion:hover {
      border-color: var(--border-hover);
      box-shadow: var(--shadow-hover);
    }
    .guide-accordion[open] {
      border-color: rgba(200, 255, 62, 0.35);
    }
    .guide-accordion summary {
      display: flex;
      align-items: center;
      gap: 20px;
      padding: 26px 28px;
      cursor: pointer;
      list-style: none;
      user-select: none;
    }
    .guide-accordion summary::-webkit-details-marker {
      display: none;
    }
    .guide-num {
      font-size: 42px;
      font-weight: 700;
      color: var(--amber);
      font-variant-numeric: tabular-nums;
      line-height: 1;
      min-width: 56px;
      letter-spacing: -1px;
    }
    .guide-title {
      font-size: 18px;
      font-weight: 600;
      color: var(--text-primary);
      flex: 1;
    }
    .guide-summary-desc {
      font-size: 13px;
      color: var(--text-muted);
      max-width: 260px;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }
    .guide-arrow {
      width: 14px;
      height: 14px;
      color: var(--text-secondary);
      flex-shrink: 0;
      transition: transform 0.22s ease;
      font-size: 13px;
    }
    .guide-accordion[open] .guide-arrow {
      transform: rotate(180deg);
      color: var(--accent);
    }
    .guide-content {
      padding: 0 28px 28px 104px;
      color: var(--text-secondary);
      font-size: 15px;
      line-height: 1.8;
    }
    .guide-content p {
      margin-bottom: 14px;
    }
    .guide-content p:last-child {
      margin-bottom: 0;
    }
    .guide-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 16px;
    }
    .guide-tag {
      font-size: 12px;
      font-weight: 600;
      color: var(--accent);
      background: rgba(200, 255, 62, 0.08);
      border: 1px solid rgba(200, 255, 62, 0.15);
      border-radius: var(--radius-full);
      padding: 4px 14px;
    }

    /* ===== Scenario ===== */
    .scenario-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 64px;
      align-items: center;
    }
    .scenario-media {
      border-radius: var(--radius-lg);
      overflow: hidden;
      position: relative;
    }
    .scenario-media img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      aspect-ratio: 4 / 3;
      border-radius: var(--radius-lg);
    }
    .scenario-media::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, rgba(11, 15, 20, 0) 0%, rgba(11, 15, 20, 0.3) 100%);
      border-radius: var(--radius-lg);
      pointer-events: none;
    }
    .scenario-content h2 {
      font-size: 28px;
      font-weight: 700;
      line-height: 1.3;
      margin-bottom: 12px;
    }
    .scenario-content > p {
      font-size: 15px;
      color: var(--text-secondary);
      margin-bottom: 28px;
    }
    .scenario-list {
      display: flex;
      flex-direction: column;
      gap: 0;
    }
    .scenario-list li {
      display: flex;
      gap: 16px;
      padding: 16px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.04);
      align-items: flex-start;
    }
    .scenario-list li:last-child {
      border-bottom: none;
    }
    .scenario-ico {
      width: 28px;
      height: 28px;
      border-radius: 8px;
      background: rgba(200, 255, 62, 0.1);
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
      margin-top: 2px;
    }
    .scenario-ico i {
      font-size: 12px;
      color: var(--accent);
    }
    .scenario-txt h4 {
      font-size: 15px;
      font-weight: 600;
      color: var(--text-primary);
      margin-bottom: 4px;
    }
    .scenario-txt p {
      font-size: 13px;
      color: var(--text-secondary);
      line-height: 1.6;
    }

    /* ===== Process ===== */
    .process-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .process-item {
      background: var(--bg-secondary);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 28px;
      transition: var(--transition);
      position: relative;
    }
    .process-item:hover {
      border-color: var(--border-hover);
      box-shadow: var(--shadow-hover);
      transform: translateY(-2px);
    }
    .process-num {
      font-size: 40px;
      font-weight: 700;
      color: rgba(200, 255, 62, 0.18);
      line-height: 1;
      font-variant-numeric: tabular-nums;
      margin-bottom: 20px;
    }
    .process-item h4 {
      font-size: 17px;
      font-weight: 600;
      margin-bottom: 8px;
      color: var(--text-primary);
    }
    .process-item p {
      font-size: 13px;
      color: var(--text-secondary);
      line-height: 1.7;
    }
    .process-line {
      position: absolute;
      top: 28px;
      right: -24px;
      width: 24px;
      height: 1px;
      background: rgba(200, 255, 62, 0.25);
    }
    .process-line::after {
      content: "";
      position: absolute;
      right: 0;
      top: -3px;
      width: 7px;
      height: 7px;
      border-top: 1px solid rgba(200, 255, 62, 0.4);
      border-right: 1px solid rgba(200, 255, 62, 0.4);
      transform: rotate(45deg);
    }
    .process-item:last-child .process-line {
      display: none;
    }

    /* ===== FAQ ===== */
    .faq-wrap {
      max-width: 760px;
      margin: 0 auto;
    }
    .faq-item {
      background: var(--bg-secondary);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 20px 24px;
      margin-bottom: 12px;
      transition: var(--transition);
    }
    .faq-item:hover {
      border-color: var(--border-hover);
    }
    .faq-item[open] {
      border-color: rgba(200, 255, 62, 0.3);
    }
    .faq-q {
      display: flex;
      align-items: center;
      gap: 12px;
      cursor: pointer;
      list-style: none;
      font-size: 16px;
      font-weight: 600;
      color: var(--text-primary);
    }
    .faq-q::-webkit-details-marker {
      display: none;
    }
    .faq-q .faq-arrow {
      font-size: 12px;
      color: var(--text-muted);
      margin-left: auto;
      transition: transform 0.22s ease;
    }
    .faq-item[open] .faq-q .faq-arrow {
      transform: rotate(180deg);
      color: var(--accent);
    }
    .faq-item[open] .faq-q {
      color: var(--accent);
    }
    .faq-a {
      padding-top: 14px;
      font-size: 14px;
      color: var(--text-secondary);
      line-height: 1.75;
    }

    /* ===== CTA Banner ===== */
    .cta-banner {
      background: var(--bg-secondary);
      border: 1px solid var(--border-color);
      border-radius: 20px;
      padding: 48px 56px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 40px;
      position: relative;
      overflow: hidden;
    }
    .cta-banner::before {
      content: "";
      position: absolute;
      right: -60px;
      top: -80px;
      width: 260px;
      height: 260px;
      background: radial-gradient(circle, rgba(200, 255, 62, 0.08) 0%, transparent 70%);
      pointer-events: none;
    }
    .cta-text h3 {
      font-size: 24px;
      font-weight: 700;
      color: var(--text-primary);
      margin-bottom: 8px;
    }
    .cta-text p {
      font-size: 14px;
      color: var(--text-secondary);
    }
    .cta-banner .btn {
      flex-shrink: 0;
      position: relative;
      z-index: 1;
    }

    /* ===== Footer ===== */
    .site-footer {
      background: #080C10;
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      padding: 64px 0 0;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1.4fr;
      gap: 40px;
      padding-bottom: 48px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }
    .footer-brand .logo-wrap {
      margin-bottom: 16px;
    }
    .footer-desc {
      font-size: 13px;
      color: var(--text-muted);
      margin-bottom: 20px;
      line-height: 1.6;
    }
    .footer-social {
      display: flex;
      gap: 10px;
    }
    .footer-social a {
      width: 36px;
      height: 36px;
      border-radius: 10px;
      border: 1px solid var(--border-color);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--text-secondary);
      font-size: 14px;
      transition: var(--transition);
    }
    .footer-social a:hover {
      border-color: var(--accent);
      color: var(--accent);
    }
    .footer-title {
      font-size: 14px;
      font-weight: 600;
      color: var(--text-primary);
      margin-bottom: 20px;
    }
    .footer-links {
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-links a {
      font-size: 13px;
      color: var(--text-secondary);
      transition: var(--transition);
      line-height: 1.4;
    }
    .footer-links a:hover {
      color: var(--accent);
    }
    .footer-subscribe p {
      font-size: 13px;
      color: var(--text-muted);
      margin-bottom: 16px;
      line-height: 1.6;
    }
    .footer-form {
      display: flex;
      gap: 10px;
      margin-bottom: 20px;
    }
    .footer-form input {
      flex: 1;
      min-width: 0;
      height: 40px;
      background: var(--bg-primary);
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: 10px;
      padding: 0 14px;
      font-size: 13px;
      color: var(--text-primary);
    }
    .footer-form input::placeholder {
      color: var(--text-muted);
    }
    .footer-form input:focus {
      border-color: var(--accent);
    }
    .footer-contact {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 13px;
      color: var(--text-muted);
    }
    .footer-contact i {
      color: var(--accent);
      font-size: 12px;
    }
    .copyright {
      text-align: center;
      padding: 28px 0;
      font-size: 12px;
      color: var(--text-muted);
      border-top: 1px solid rgba(255, 255, 255, 0.03);
    }

    /* ===== Responsive ===== */
    @media (max-width: 1024px) {
      .header-actions .cmd-search {
        width: 180px;
      }
      .header-actions .cmd-search:focus-within {
        width: 220px;
      }
      .main-nav {
        gap: 20px;
      }
      .process-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
      }
      .process-line {
        display: none;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
      }
      .scenario-grid {
        gap: 40px;
      }
    }

    @media (max-width: 768px) {
      .section-block {
        padding: 64px 0;
      }
      .section-head h2 {
        font-size: 24px;
      }
      .category-hero {
        min-height: 260px;
        padding: 56px 0;
      }
      .category-hero h1 {
        font-size: 32px;
      }
      .hero-sub {
        font-size: 14px;
      }

      .main-nav {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--bg-primary);
        flex-direction: column;
        align-items: flex-start;
        justify-content: flex-start;
        padding: 48px 32px;
        gap: 8px;
        margin: 0;
        transform: translateX(100%);
        transition: transform 0.28s ease;
        overflow-y: auto;
      }
      .main-nav.open {
        transform: translateX(0);
      }
      .main-nav a {
        font-size: 20px;
        padding: 12px 0;
        width: 100%;
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
      }
      .main-nav a.active::after {
        display: none;
      }
      .main-nav a.active {
        color: var(--accent);
      }

      .menu-toggle {
        display: flex;
      }

      .header-actions,
      .header-actions .btn {
        display: none;
      }

      .scenario-grid {
        grid-template-columns: 1fr;
        gap: 32px;
      }
      .cta-banner {
        flex-direction: column;
        align-items: flex-start;
        padding: 36px 28px;
        gap: 24px;
      }
      .cta-banner .btn {
        width: 100%;
      }
      .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
      }
      .footer-form {
        flex-direction: column;
      }
      .footer-form .btn {
        width: 100%;
      }

      .guide-accordion summary {
        flex-wrap: wrap;
        gap: 12px;
        padding: 20px;
      }
      .guide-num {
        font-size: 34px;
        min-width: 44px;
      }
      .guide-title {
        font-size: 16px;
        flex: 1 1 60%;
      }
      .guide-summary-desc {
        display: none;
      }
      .guide-content {
        padding: 0 20px 20px 20px;
        font-size: 14px;
      }
    }

    @media (max-width: 520px) {
      .container {
        padding-left: 16px;
        padding-right: 16px;
      }
      .process-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        gap: 24px;
      }
      .category-hero h1 {
        font-size: 28px;
        letter-spacing: -0.5px;
      }
      .hero-badge {
        font-size: 11px;
        padding: 5px 12px;
      }
      .section-head {
        margin-bottom: 28px;
      }
      .guide-accordion summary {
        padding: 18px 16px;
      }
      .guide-content {
        padding: 0 16px 18px 16px;
      }
      .cta-text h3 {
        font-size: 20px;
      }
    }