/* roulang page: index */
:root {
    --primary: #0E4D4A;
    --primary-dark: #0A3432;
    --accent: #C89B5A;
    --accent-light: #DDB87C;
    --bg: #F7F4EF;
    --surface: #FFFFFF;
    --text: #1F2A2A;
    --text-secondary: #5E6D6B;
    --border: #E6DFD3;
    --dark-bg: #0A2E2C;
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 18px;
    --shadow-sm: 0 1px 3px rgba(14,77,74,0.06);
    --shadow-hover: 0 10px 28px rgba(14,77,74,0.12);
    --transition: 0.3s ease;
    --sidebar-width: 240px;
    --section-gap: 5rem;
  }

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

  html {
    scroll-behavior: smooth;
  }

  body {
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
  }

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

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

  button,
  input {
    font-family: inherit;
    font-size: 1rem;
  }

  .section-padding {
    padding: var(--section-gap) 0;
  }

  /* ===== 左侧导航 ===== */
  .app-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background: var(--primary);
    z-index: 1050;
    display: flex;
    flex-direction: column;
    color: rgba(255, 255, 255, 0.85);
    transition: transform 0.3s ease;
  }

  .sidebar-logo {
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    padding: 0 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }

  .logo-link {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
  }

  .logo-main {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--accent);
    letter-spacing: 1px;
  }

  .logo-sub {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.75);
    letter-spacing: 3px;
    margin-top: 4px;
  }

  .sidebar-nav {
    flex: 1;
    padding: 1rem 0;
  }

  .nav-item {
    display: flex;
    align-items: center;
    height: 48px;
    padding: 0 20px;
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.8);
    position: relative;
    transition: background 0.25s ease, color 0.25s ease;
  }

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

  .nav-item.active {
    color: #fff;
    font-weight: 600;
  }

  .nav-item.active::before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 24px;
    background: var(--accent);
    border-radius: 0 4px 4px 0;
  }

  .sidebar-footer {
    padding: 16px 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.45);
  }

  /* ===== 移动端导航 ===== */
  .mobile-header {
    display: none;
    height: 64px;
    background: var(--primary);
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    position: sticky;
    top: 0;
    z-index: 1040;
  }

  .mobile-logo {
    display: flex;
    align-items: baseline;
    gap: 6px;
  }

  .mobile-logo .logo-main {
    font-size: 1.3rem;
  }

  .mobile-logo .logo-sub {
    font-size: 0.72rem;
    letter-spacing: 2px;
  }

  .menu-toggle {
    background: transparent;
    border: none;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    gap: 5px;
    padding: 6px;
  }

  .menu-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 2px;
    transition: 0.3s;
  }

  .mobile-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
    z-index: 1050;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
  }

  .mobile-overlay.show {
    opacity: 1;
    visibility: visible;
  }

  .mobile-drawer {
    position: fixed;
    top: 0;
    left: 0;
    width: 260px;
    height: 100vh;
    background: var(--primary);
    z-index: 1060;
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    display: flex;
    flex-direction: column;
  }

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

  .drawer-header {
    height: 72px;
    display: flex;
    align-items: center;
    padding: 0 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

  .drawer-nav {
    flex: 1;
    padding: 1rem 0;
  }

  .drawer-nav .nav-item {
    height: 46px;
  }

  /* ===== 主内容 ===== */
  .main-content {
    margin-left: var(--sidebar-width);
    min-height: 100vh;
  }

  .container-custom {
    max-width: 1280px;
    padding-left: 2rem;
    padding-right: 2rem;
    margin: 0 auto;
  }

  @media (max-width: 768px) {
    .container-custom {
      padding-left: 1rem;
      padding-right: 1rem;
    }
  }

  /* ===== Hero 区 ===== */
  .hero-section {
    background: linear-gradient(180deg, rgba(14, 77, 74, 0.06) 0%, var(--bg) 100%);
    background-image:
      linear-gradient(rgba(14, 77, 74, 0.03) 1px, transparent 1px),
      linear-gradient(90deg, rgba(14, 77, 74, 0.03) 1px, transparent 1px),
      linear-gradient(180deg, rgba(14, 77, 74, 0.06) 0%, var(--bg) 100%);
    background-size: 40px 40px, 40px 40px, 100% 100%;
    padding: 4rem 0 5rem;
  }

  .hero-row {
    display: flex;
    align-items: center;
    gap: 3rem;
  }

  .hero-col-left {
    flex: 1 1 50%;
  }

  .hero-col-right {
    flex: 1 1 50%;
    position: relative;
  }

  .hero-title {
    font-size: clamp(1.9rem, 4vw, 2.8rem);
    font-weight: 700;
    line-height: 1.25;
    color: var(--text);
    margin-bottom: 1.2rem;
  }

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

  .hero-subtitle {
    font-size: 1rem;
    color: var(--text-secondary);
    max-width: 560px;
    margin-bottom: 2rem;
    line-height: 1.8;
  }

  .hero-cta-group {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
  }

  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.95rem;
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 0.3s ease;
  }

  .btn-primary-custom {
    background: var(--accent);
    color: var(--primary-dark);
    border-color: var(--accent);
  }

  .btn-primary-custom:hover {
    background: var(--accent-light);
    border-color: var(--accent-light);
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(200, 155, 90, 0.3);
    color: var(--primary-dark);
  }

  .btn-outline-custom {
    background: transparent;
    color: var(--primary);
    border-color: var(--primary);
  }

  .btn-outline-custom:hover {
    background: rgba(14, 77, 74, 0.08);
    color: var(--primary);
  }

  .hero-visual {
    position: relative;
    padding-left: 1.5rem;
    padding-bottom: 1.5rem;
  }

  .hero-visual .visual-bg {
    position: absolute;
    top: 1.5rem;
    left: 0;
    right: 1.5rem;
    bottom: 0;
    background: rgba(14, 77, 74, 0.08);
    border-radius: var(--radius-lg);
    z-index: 0;
  }

  .hero-visual img {
    position: relative;
    z-index: 1;
    border-radius: var(--radius-lg);
    border: 1px solid rgba(14, 77, 74, 0.1);
    box-shadow: 0 8px 30px rgba(14, 77, 74, 0.1);
    width: 100%;
    height: 360px;
    object-fit: cover;
  }

  .hero-badge {
    position: absolute;
    z-index: 2;
    bottom: 0.5rem;
    right: 0.75rem;
    background: var(--accent);
    color: var(--primary-dark);
    font-size: 0.8rem;
    font-weight: 600;
    padding: 0.35rem 0.85rem;
    border-radius: 20px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  }

  /* ===== 品牌理念 ===== */
  .brand-section {
    background: var(--bg);
    padding: var(--section-gap) 0;
  }

  .brand-wrap {
    display: flex;
    gap: 3rem;
    align-items: flex-start;
  }

  .brand-left {
    flex: 1 1 55%;
  }

  .brand-right {
    flex: 1 1 45%;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
  }

  .section-title {
    font-size: clamp(1.4rem, 2.8vw, 2rem);
    font-weight: 700;
    line-height: 1.3;
    color: var(--text);
    margin-bottom: 1.2rem;
    position: relative;
  }

  .section-title::after {
    content: "";
    display: block;
    width: 48px;
    height: 3px;
    background: var(--accent);
    border-radius: 3px;
    margin-top: 10px;
  }

  .brand-desc {
    color: var(--text-secondary);
    line-height: 1.85;
    max-width: 560px;
  }

  .stat-item {
    background: var(--surface);
    border: 1px solid rgba(14, 77, 74, 0.1);
    border-radius: var(--radius-md);
    padding: 1.25rem 1.5rem;
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: box-shadow 0.3s ease, transform 0.3s ease;
  }

  .stat-item:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-2px);
  }

  .stat-highlight {
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent);
    line-height: 1.2;
    min-width: 80px;
    text-align: center;
  }

  .stat-label {
    font-size: 0.9rem;
    color: var(--primary);
    font-weight: 600;
  }

  .stat-desc {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: 2px;
  }

  /* ===== 精选内容卡带 ===== */
  .featured-section {
    background: var(--bg);
    padding: 0 0 var(--section-gap);
  }

  .featured-card {
    background: var(--surface);
    border: 1px solid rgba(14, 77, 74, 0.1);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: box-shadow 0.3s ease, transform 0.3s ease;
    height: 100%;
    display: flex;
    flex-direction: column;
  }

  .featured-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-2px);
  }

  .featured-card img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    border-bottom: 1px solid rgba(14, 77, 74, 0.06);
  }

  .featured-card-body {
    padding: 1.5rem;
    flex: 1;
    display: flex;
    flex-direction: column;
  }

  .featured-card-body .tag {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--primary);
    background: rgba(14, 77, 74, 0.08);
    display: inline-block;
    padding: 3px 10px;
    border-radius: 6px;
    margin-bottom: 12px;
    align-self: flex-start;
  }

  .featured-card-body h3 {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 8px;
  }

  .featured-card-body p {
    font-size: 0.92rem;
    color: var(--text-secondary);
    line-height: 1.7;
    flex: 1;
    margin-bottom: 16px;
  }

  .card-link {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--primary);
    display: inline-flex;
    align-items: center;
    gap: 6px;
  }

  .card-link:hover {
    color: var(--accent);
  }

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

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

  /* ===== 资讯列表 ===== */
  .news-section {
    background: var(--surface);
    padding: var(--section-gap) 0;
  }

  .news-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 2rem;
  }

  .news-row {
    display: flex;
    gap: 1.25rem;
    background: var(--surface);
    border: 1px solid rgba(14, 77, 74, 0.1);
    border-radius: var(--radius-md);
    padding: 1rem;
    box-shadow: var(--shadow-sm);
    transition: box-shadow 0.3s ease, transform 0.3s ease;
    align-items: center;
    color: inherit;
  }

  .news-row:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-2px);
    color: inherit;
  }

  .news-thumb {
    width: 160px;
    height: 100px;
    border-radius: var(--radius-sm);
    overflow: hidden;
    flex-shrink: 0;
    background: var(--border);
  }

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

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

  .news-meta {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 4px;
    flex-wrap: wrap;
  }

  .badge-cat {
    display: inline-block;
    font-size: 0.8rem;
    background: rgba(14, 77, 74, 0.1);
    color: var(--primary);
    padding: 2px 10px;
    border-radius: 6px;
    font-weight: 600;
  }

  .news-time {
    font-size: 0.8rem;
    color: var(--text-secondary);
  }

  .news-body h3 {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 4px;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
  }

  .news-body p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    margin-bottom: 4px;
  }

  .news-more {
    font-size: 0.85rem;
    color: var(--primary);
    font-weight: 600;
  }

  .cms-empty {
    border: 2px dashed var(--border);
    border-radius: var(--radius-md);
    height: 240px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-top: 2rem;
  }

  /* ===== 信任背书 ===== */
  .trust-section {
    background: var(--dark-bg);
    padding: 4rem 0;
    color: rgba(255, 255, 255, 0.9);
  }

  .trust-logo-wall {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 3rem;
    padding: 0 1rem;
  }

  .trust-logo-item {
    background: rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-sm);
    padding: 12px 24px;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.4);
    font-weight: 600;
    letter-spacing: 1px;
    user-select: none;
  }

  .trust-quote-line {
    text-align: center;
    font-size: clamp(1.2rem, 2.5vw, 1.6rem);
    font-weight: 600;
    color: rgba(255, 255, 255, 0.95);
    margin-bottom: 2rem;
  }

  .trust-quote-line .num {
    color: var(--accent);
    font-size: 1.4em;
  }

  .trust-testimonial {
    max-width: 640px;
    margin: 0 auto;
    text-align: center;
    background: rgba(255, 255, 255, 0.04);
    border-radius: var(--radius-md);
    padding: 2rem 2.5rem;
    border-left: 3px solid var(--accent);
  }

  .testimonial-text {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.85);
    line-height: 1.8;
    margin-bottom: 1rem;
    font-style: italic;
  }

  .testimonial-author {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
  }

  .testimonial-name {
    font-weight: 600;
    color: #fff;
    font-size: 0.95rem;
  }

  .testimonial-role {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.5);
  }

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

  .accordion-custom {
    max-width: 800px;
    margin: 2rem auto 0;
  }

  .accordion-item {
    background: var(--surface);
    border: 1px solid var(--border) !important;
    border-radius: 10px !important;
    margin-bottom: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
  }

  .accordion-button {
    background: var(--surface);
    color: var(--text);
    font-weight: 600;
    font-size: 1rem;
    padding: 16px 20px;
    border: none;
    box-shadow: none;
    position: relative;
  }

  .accordion-button:not(.collapsed) {
    background: rgba(14, 77, 74, 0.04);
    color: var(--primary);
    box-shadow: none;
  }

  .accordion-button:not(.collapsed)::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--accent);
  }

  .accordion-button::after {
    background-image: none;
    content: "";
    width: 10px;
    height: 10px;
    border-right: 2px solid var(--primary);
    border-bottom: 2px solid var(--primary);
    transform: rotate(45deg);
    transition: transform 0.3s ease;
  }

  .accordion-button:not(.collapsed)::after {
    transform: rotate(-135deg);
  }

  .accordion-body {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.75;
    padding: 0 20px 18px;
    border-top: 1px solid var(--border);
    padding-top: 14px;
  }

  /* ===== CTA 订阅 ===== */
  .cta-section {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    padding: 4rem 0;
    color: rgba(255, 255, 255, 0.9);
  }

  .cta-wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    flex-wrap: wrap;
  }

  .cta-left h2 {
    color: #fff;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 6px;
  }

  .cta-left p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
    margin-bottom: 0;
  }

  .cta-left .btn {
    margin-top: 1rem;
  }

  .subscribe-form {
    display: flex;
    gap: 0;
    min-width: 400px;
    max-width: 480px;
  }

  .subscribe-form input {
    flex: 1;
    padding: 0.75rem 1rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-sm) 0 0 var(--radius-sm);
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    font-size: 0.92rem;
    outline: none;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
  }

  .subscribe-form input::placeholder {
    color: rgba(255, 255, 255, 0.5);
  }

  .subscribe-form input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 4px rgba(200, 155, 90, 0.15);
  }

  .subscribe-form .btn {
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    background: var(--accent);
    color: var(--primary-dark);
    border: 1px solid var(--accent);
    font-weight: 600;
    padding: 0.75rem 1.25rem;
    transition: background 0.3s ease, box-shadow 0.3s ease;
  }

  .subscribe-form .btn:hover {
    background: var(--accent-light);
    border-color: var(--accent-light);
    box-shadow: 0 4px 12px rgba(200, 155, 90, 0.3);
  }

  /* ===== 页脚 ===== */
  .site-footer {
    background: var(--dark-bg);
    color: rgba(255, 255, 255, 0.7);
    padding: 3rem 0 0;
    font-size: 0.88rem;
  }

  .footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 2rem;
    padding-bottom: 2rem;
  }

  .footer-brand .logo-main {
    font-size: 1.3rem;
    color: var(--accent);
  }

  .footer-brand .logo-sub {
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.5);
    letter-spacing: 2px;
  }

  .footer-desc {
    color: rgba(255, 255, 255, 0.5);
    line-height: 1.7;
    margin-top: 12px;
    max-width: 320px;
    font-size: 0.85rem;
  }

  .footer-col h4 {
    color: #fff;
    font-size: 1rem;
    margin-bottom: 16px;
    font-weight: 600;
  }

  .footer-col ul {
    list-style: none;
    padding: 0;
    margin: 0;
  }

  .footer-col ul li {
    margin-bottom: 8px;
  }

  .footer-col ul a {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.88rem;
    transition: color 0.3s ease;
  }

  .footer-col ul a:hover {
    color: var(--accent);
  }

  .footer-contact {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.85rem;
    line-height: 1.7;
  }

  .footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: 1.2rem 0;
    text-align: center;
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.4);
  }

  /* ===== 响应式 ===== */
  @media (max-width: 991px) {
    .app-sidebar {
      display: none;
    }

    .mobile-header {
      display: flex;
    }

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

    :root {
      --section-gap: 3rem;
    }
  }

  @media (max-width: 768px) {
    .hero-row {
      flex-direction: column;
      gap: 2rem;
    }

    .hero-subtitle {
      max-width: 100%;
    }

    .brand-wrap {
      flex-direction: column;
      gap: 2rem;
    }

    .news-row {
      flex-direction: column;
      align-items: flex-start;
    }

    .news-thumb {
      width: 100%;
      height: 160px;
    }

    .subscribe-form {
      min-width: 0;
      width: 100%;
      flex-direction: column;
      gap: 10px;
    }

    .subscribe-form input {
      border-radius: var(--radius-sm);
      width: 100%;
    }

    .subscribe-form .btn {
      border-radius: var(--radius-sm);
      width: 100%;
    }

    .cta-wrap {
      flex-direction: column;
      align-items: flex-start;
    }

    .footer-grid {
      grid-template-columns: 1fr;
      gap: 1.5rem;
    }

    .hero-visual img {
      height: 260px;
    }

    .testimonial-text {
      font-size: 0.92rem;
    }
  }

  @media (max-width: 576px) {
    .mobile-header {
      height: 56px;
    }

    .hero-section {
      padding: 2.5rem 0 3rem;
    }

    .hero-cta-group {
      flex-direction: column;
      width: 100%;
    }

    .hero-cta-group .btn {
      width: 100%;
    }

    .stat-item {
      flex-direction: column;
      text-align: center;
      padding: 1rem;
    }

    .stat-highlight {
      min-width: auto;
      font-size: 1.6rem;
    }

    .featured-card img {
      height: 140px;
    }

    .trust-logo-wall {
      gap: 1rem;
    }

    .trust-logo-item {
      padding: 8px 16px;
      font-size: 0.78rem;
    }

    .trust-testimonial {
      padding: 1.2rem;
    }

    .accordion-button {
      font-size: 0.92rem;
      padding: 14px 14px;
    }

    .accordion-body {
      padding: 0 14px 14px;
      padding-top: 12px;
      font-size: 0.88rem;
    }

    .footer-grid {
      padding-bottom: 1.5rem;
    }
  }

/* roulang page: article */
:root {
            --primary: #0E4D4A;
            --primary-dark: #0A3432;
            --accent: #C89B5A;
            --accent-light: #DDB87C;
            --bg: #F7F4EF;
            --surface: #FFFFFF;
            --text: #1F2A2A;
            --text-secondary: #5E6D6B;
            --border: #E6DFD3;
            --dark-bg: #0A2E2C;
            --radius: 14px;
            --radius-sm: 8px;
            --shadow: 0 1px 3px rgba(14,77,74,0.06);
            --shadow-hover: 0 10px 28px rgba(14,77,74,0.12);
            --transition: 0.3s ease;
            --sidebar-width: 240px;
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.75;
            font-size: 1rem;
        }

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

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

        .container-custom {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 2rem;
        }

        .section-padding {
            padding: 5rem 0;
        }

        /* ===== 左侧导航 ===== */
        .sidebar {
            position: fixed;
            left: 0;
            top: 0;
            bottom: 0;
            width: var(--sidebar-width);
            background: var(--primary);
            display: flex;
            flex-direction: column;
            z-index: 1040;
            border-right: 1px solid rgba(255,255,255,0.08);
            transition: transform 0.4s ease;
        }

        .sidebar-logo {
            height: 72px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            border-bottom: 1px solid rgba(255,255,255,0.08);
            padding: 0 20px;
        }

        .logo-main {
            font-size: 28px;
            font-weight: 800;
            color: var(--accent);
            letter-spacing: 1px;
            line-height: 1.2;
        }

        .logo-sub {
            font-size: 13px;
            color: rgba(255,255,255,0.8);
            letter-spacing: 2px;
            line-height: 1.4;
        }

        .sidebar-nav {
            flex: 1;
            padding: 20px 0;
            overflow-y: auto;
        }

        .nav-item {
            display: block;
            height: 48px;
            line-height: 48px;
            padding: 0 20px;
            color: rgba(255,255,255,0.8);
            font-size: 14px;
            font-weight: 500;
            transition: background 0.3s, color 0.3s;
            position: relative;
        }

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

        .nav-item.active {
            color: #fff;
            background: rgba(255,255,255,0.04);
        }

        .nav-item.active::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 4px;
            background: var(--accent);
            border-radius: 0 2px 2px 0;
        }

        .sidebar-bottom {
            padding: 16px 20px;
            font-size: 12px;
            color: rgba(255,255,255,0.5);
            border-top: 1px solid rgba(255,255,255,0.08);
            text-align: center;
        }

        /* ===== 移动端顶栏 ===== */
        .topbar {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 64px;
            background: var(--primary);
            align-items: center;
            justify-content: space-between;
            padding: 0 20px;
            z-index: 1050;
            box-shadow: 0 4px 20px rgba(0,0,0,0.15);
        }

        .topbar-logo {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .topbar-logo .logo-main {
            font-size: 24px;
        }

        .topbar-toggle {
            background: none;
            border: none;
            color: #fff;
            font-size: 22px;
            cursor: pointer;
            padding: 8px;
            border-radius: 6px;
        }

        .topbar-toggle:hover {
            background: rgba(255,255,255,0.1);
        }

        .drawer-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0,0,0,0.5);
            z-index: 1041;
        }

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

        /* ===== 主内容区 ===== */
        .main-wrapper {
            margin-left: var(--sidebar-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        .main-content {
            flex: 1;
        }

        /* ===== 文章页 ===== */
        .article-header {
            padding: 3rem 0 1rem;
            position: relative;
        }

        .breadcrumb-wrap {
            font-size: 13px;
            color: var(--text-secondary);
            margin-bottom: 2rem;
            padding: 10px 16px;
            background: var(--surface);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            display: inline-flex;
            gap: 6px;
            align-items: center;
        }

        .breadcrumb-wrap a {
            color: var(--primary);
        }

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

        .breadcrumb-wrap .separator {
            opacity: 0.5;
        }

        .article-title {
            font-size: clamp(1.9rem, 4vw, 2.6rem);
            font-weight: 700;
            line-height: 1.3;
            color: var(--primary-dark);
            margin-bottom: 1rem;
        }

        .article-meta {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            color: var(--text-secondary);
            font-size: 14px;
            margin-bottom: 1.5rem;
            padding-bottom: 1.5rem;
            border-bottom: 1px solid var(--border);
        }

        .article-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .article-meta i {
            color: var(--accent);
        }

        .article-body {
            max-width: 860px;
            margin: 0 auto;
            background: var(--surface);
            border-radius: 18px;
            border: 1px solid var(--border);
            padding: 3rem;
            box-shadow: var(--shadow);
        }

        .article-body h2 {
            font-size: clamp(1.4rem, 2.8vw, 1.8rem);
            font-weight: 700;
            color: var(--primary);
            margin: 2rem 0 1rem;
            line-height: 1.4;
        }

        .article-body h3 {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--primary-dark);
            margin: 1.5rem 0 0.8rem;
        }

        .article-body p {
            margin-bottom: 1.2rem;
            color: var(--text);
        }

        .article-body ul,
        .article-body ol {
            margin-bottom: 1.2rem;
            padding-left: 1.5rem;
        }

        .article-body li {
            margin-bottom: 0.4rem;
        }

        .article-body blockquote {
            border-left: 4px solid var(--accent);
            background: rgba(200,155,90,0.08);
            padding: 1rem 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 8px 8px 0;
            color: var(--text-secondary);
        }

        .article-body img {
            border-radius: 12px;
            margin: 1.5rem 0;
            box-shadow: var(--shadow);
        }

        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
            font-size: 14px;
        }

        .article-body table th {
            background: var(--primary);
            color: #fff;
            padding: 12px 16px;
            text-align: left;
            font-weight: 600;
        }

        .article-body table td {
            padding: 10px 16px;
            border-bottom: 1px solid var(--border);
        }

        .article-body table tr:nth-child(even) td {
            background: #FBF9F5;
        }

        .article-body table tr:hover td {
            background: rgba(14,77,74,0.03);
        }

        .article-not-found {
            text-align: center;
            padding: 4rem 2rem;
        }

        .article-not-found h2 {
            font-size: 1.6rem;
            color: var(--primary);
            margin-bottom: 1rem;
        }

        .article-not-found p {
            color: var(--text-secondary);
            margin-bottom: 1.5rem;
        }

        .article-not-found .btn-primary-custom {
            display: inline-block;
            padding: 0.75rem 1.5rem;
            background: var(--accent);
            color: var(--primary-dark);
            border-radius: var(--radius-sm);
            font-weight: 600;
            transition: all var(--transition);
            border: none;
        }

        .article-not-found .btn-primary-custom:hover {
            background: var(--accent-light);
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }

        /* ===== 相关推荐 ===== */
        .related-section {
            padding: 3rem 0 5rem;
        }

        .related-section .section-title {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 2rem;
            position: relative;
            padding-bottom: 0.8rem;
        }

        .related-section .section-title::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 60px;
            height: 3px;
            background: var(--accent);
            border-radius: 2px;
        }

        .related-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: transform var(--transition), box-shadow var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }

        .related-card img {
            width: 100%;
            height: 160px;
            object-fit: cover;
            border-radius: var(--radius) var(--radius) 0 0;
        }

        .related-card-body {
            padding: 16px 20px;
            flex: 1;
        }

        .related-card-body h3 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            line-height: 1.5;
            margin-bottom: 8px;
        }

        .related-card-body h3 a:hover {
            color: var(--primary);
        }

        .related-card-body p {
            font-size: 13px;
            color: var(--text-secondary);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 0;
        }

        .related-link {
            display: inline-block;
            margin-top: 12px;
            font-size: 13px;
            color: var(--primary);
            font-weight: 600;
            transition: color 0.3s;
        }

        .related-link:hover {
            color: var(--accent);
        }

        .related-link i {
            margin-left: 4px;
            transition: transform 0.3s;
        }

        .related-link:hover i {
            transform: translateX(4px);
        }

        /* ===== 返回入口 ===== */
        .back-link-wrap {
            text-align: center;
            padding: 1rem 0 3rem;
        }

        .back-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--text-secondary);
            font-size: 14px;
            transition: color 0.3s;
        }

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

        .back-link i {
            font-size: 13px;
        }

        /* ===== 按钮 ===== */
        .btn-primary-custom {
            background: var(--accent);
            color: var(--primary-dark);
            border: none;
            padding: 0.75rem 1.5rem;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            transition: all var(--transition);
            display: inline-block;
        }

        .btn-primary-custom:hover {
            background: var(--accent-light);
            color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(200,155,90,0.25);
        }

        .btn-outline-custom {
            background: transparent;
            color: var(--primary);
            border: 1px solid var(--primary);
            padding: 0.75rem 1.5rem;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            transition: all var(--transition);
            display: inline-block;
        }

        .btn-outline-custom:hover {
            background: rgba(14,77,74,0.08);
            color: var(--primary);
            transform: translateY(-2px);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--dark-bg);
            color: rgba(247,244,239,0.8);
            padding: 4rem 0 0;
            margin-left: var(--sidebar-width);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 3rem;
            padding-bottom: 3rem;
            border-bottom: 1px solid rgba(255,255,255,0.1);
        }

        .footer-brand .logo-main {
            font-size: 26px;
        }

        .footer-brand .logo-sub {
            color: rgba(255,255,255,0.6);
            font-size: 12px;
        }

        .footer-desc {
            font-size: 14px;
            line-height: 1.8;
            margin-top: 1rem;
            color: rgba(255,255,255,0.6);
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 1.2rem;
            letter-spacing: 1px;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-col ul li {
            margin-bottom: 0.6rem;
        }

        .footer-col ul li a {
            color: rgba(255,255,255,0.7);
            font-size: 14px;
            transition: color 0.3s;
        }

        .footer-col ul li a:hover {
            color: var(--accent);
        }

        .footer-contact {
            font-size: 13px;
            color: rgba(255,255,255,0.5);
            letter-spacing: 1px;
        }

        .footer-bottom {
            padding: 1.5rem 0;
            text-align: center;
            font-size: 13px;
            color: rgba(255,255,255,0.4);
            border-top: 1px solid rgba(255,255,255,0.08);
            margin-top: 2rem;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 991px) {
            .sidebar {
                transform: translateX(-100%);
            }
            .sidebar.open {
                transform: translateX(0);
            }
            .topbar {
                display: flex;
            }
            .main-wrapper {
                margin-left: 0;
                padding-top: 64px;
            }
            .site-footer {
                margin-left: 0;
            }
            .container-custom {
                padding: 0 1.5rem;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .article-body {
                padding: 2rem;
            }
        }

        @media (max-width: 768px) {
            .section-padding {
                padding: 3rem 0;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .article-body {
                padding: 1.5rem;
                border-radius: 12px;
            }
            .article-title {
                font-size: 1.6rem;
            }
            .article-meta {
                gap: 12px;
                font-size: 13px;
            }
            .related-card img {
                height: 140px;
            }
        }

        @media (max-width: 576px) {
            .topbar {
                height: 56px;
            }
            .container-custom {
                padding: 0 1rem;
            }
            .article-body {
                padding: 1.2rem;
            }
            .breadcrumb-wrap {
                font-size: 12px;
                flex-wrap: wrap;
            }
            .article-meta {
                flex-direction: column;
                gap: 6px;
            }
            .related-section .section-title {
                font-size: 1.4rem;
            }
        }

        @media (min-width: 992px) {
            .sidebar {
                transform: translateX(0);
            }
        }

/* roulang page: category1 */
:root {
            --primary: #0E4D4A;
            --primary-dark: #0A3432;
            --accent: #C89B5A;
            --accent-light: #DDB87C;
            --bg: #F7F4EF;
            --surface: #FFFFFF;
            --text: #1F2A2A;
            --text-secondary: #5E6D6B;
            --border: #E6DFD3;
            --dark-bg: #0A2E2C;
            --radius: 14px;
            --radius-small: 8px;
            --shadow: 0 1px 3px rgba(14, 77, 74, 0.06);
            --shadow-hover: 0 10px 28px rgba(14, 77, 74, 0.12);
            --transition: 0.3s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            font-size: 1rem;
            line-height: 1.75;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }

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

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

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

        button,
        input {
            font-family: inherit;
        }

        .container-custom {
            max-width: 1160px;
            margin: 0 auto;
            padding: 0 2rem;
        }

        .site-main {
            margin-left: 240px;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            background: var(--bg);
        }

        .section-padding {
            padding: 5rem 0;
        }

        .section-tag {
            display: inline-block;
            padding: 0.3rem 0.75rem;
            border-radius: 6px;
            background: rgba(14, 77, 74, 0.1);
            color: var(--primary);
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 1px;
            margin-bottom: 1rem;
        }

        /* ===== 左侧导航 ===== */
        .app-sidebar {
            width: 240px;
            position: fixed;
            top: 0;
            bottom: 0;
            left: 0;
            z-index: 1040;
            background: linear-gradient(180deg, var(--primary) 0%, var(--primary-dark) 100%);
            display: flex;
            flex-direction: column;
            box-shadow: 2px 0 12px rgba(10, 52, 50, 0.2);
        }

        .brand-logo {
            height: 90px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            padding: 0 1.5rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            flex-shrink: 0;
        }

        .brand-logo .logo-main {
            font-size: 1.7rem;
            font-weight: 800;
            color: var(--accent);
            letter-spacing: 3px;
            line-height: 1.1;
        }

        .brand-logo .logo-sub {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.75);
            letter-spacing: 3px;
            margin-top: 3px;
        }

        .sidebar-nav {
            flex: 1;
            padding: 1.5rem 0;
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .nav-item {
            display: flex;
            align-items: center;
            height: 48px;
            padding: 0 1.5rem;
            color: rgba(255, 255, 255, 0.78);
            font-size: 0.95rem;
            font-weight: 500;
            border-left: 3px solid transparent;
            transition: background var(--transition), color var(--transition), border-color var(--transition);
            text-decoration: none;
        }

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

        .nav-item.active {
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
            border-left-color: var(--accent);
            font-weight: 600;
        }

        .sidebar-footer {
            padding: 1.25rem 1rem;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.45);
            text-align: center;
            flex-shrink: 0;
        }

        /* ===== 移动端顶栏 / 抽屉 ===== */
        .mobile-topbar {
            display: none;
            height: 64px;
            background: var(--primary);
            align-items: center;
            justify-content: space-between;
            padding: 0 1rem;
            position: sticky;
            top: 0;
            z-index: 1030;
            box-shadow: 0 2px 8px rgba(10, 52, 50, 0.25);
        }

        .mobile-topbar .brand-logo {
            height: 64px;
            border-bottom: none;
            padding: 0;
        }

        .mobile-topbar .brand-logo .logo-main {
            font-size: 1.4rem;
        }

        .mobile-topbar .brand-logo .logo-sub {
            font-size: 0.7rem;
        }

        .menu-toggle,
        .drawer-close {
            background: transparent;
            border: none;
            color: #fff;
            font-size: 1.4rem;
            padding: 0.5rem;
            border-radius: 8px;
            transition: background var(--transition);
        }

        .menu-toggle:hover,
        .drawer-close:hover {
            background: rgba(255, 255, 255, 0.12);
        }

        .mobile-drawer {
            display: none;
            position: fixed;
            top: 0;
            left: -280px;
            width: 260px;
            bottom: 0;
            background: linear-gradient(180deg, var(--primary), var(--primary-dark));
            z-index: 1055;
            flex-direction: column;
            transition: left 0.3s ease;
            box-shadow: 4px 0 20px rgba(10, 40, 38, 0.3);
        }

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

        .drawer-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0.75rem 1rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            height: 64px;
        }

        .drawer-header .brand-logo {
            height: auto;
            border: none;
            padding: 0;
        }

        .drawer-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(8, 38, 36, 0.55);
            z-index: 1050;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.3s ease;
            backdrop-filter: blur(2px);
        }

        .drawer-overlay.show {
            opacity: 1;
            pointer-events: auto;
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 0.75rem 1.5rem;
            border-radius: var(--radius-small);
            font-weight: 600;
            font-size: 0.95rem;
            line-height: 1.4;
            transition: background var(--transition), color var(--transition), border-color var(--transition), box-shadow var(--transition), transform var(--transition);
            border: 1px solid transparent;
            text-decoration: none;
            cursor: pointer;
        }

        .btn-primary {
            background: var(--accent);
            color: var(--primary-dark);
            border-color: var(--accent);
        }

        .btn-primary:hover {
            background: var(--accent-light);
            border-color: var(--accent-light);
            color: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: 0 6px 18px rgba(200, 155, 90, 0.25);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: none;
        }

        .btn-outline {
            background: transparent;
            color: var(--primary);
            border-color: rgba(14, 77, 74, 0.4);
        }

        .btn-outline:hover {
            background: rgba(14, 77, 74, 0.08);
            border-color: var(--primary);
            color: var(--primary);
        }

        .btn-outline:active {
            background: rgba(14, 77, 74, 0.12);
        }

        .btn:focus-visible {
            outline: 3px solid rgba(200, 155, 90, 0.5);
            outline-offset: 2px;
        }

        /* ===== Hero ===== */
        .page-hero {
            position: relative;
            padding: 4rem 0;
            background:
                linear-gradient(135deg, rgba(14, 77, 74, 0.1) 0%, rgba(247, 244, 239, 0.6) 45%, rgba(200, 155, 90, 0.08) 100%),
                url('/assets/images/backpic/back-1.webp') center / cover no-repeat;
            border-bottom: 1px solid rgba(14, 77, 74, 0.08);
        }

        .page-hero .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            gap: 0.35rem;
            list-style: none;
            padding: 0;
            margin: 0 0 2.5rem;
            font-size: 0.85rem;
            color: var(--text-secondary);
        }

        .page-hero .breadcrumb li+li::before {
            content: "/";
            margin: 0 0.5rem;
            color: var(--text-secondary);
            opacity: 0.5;
        }

        .page-hero .breadcrumb a {
            color: var(--text-secondary);
            text-decoration: none;
            transition: color var(--transition);
        }

        .page-hero .breadcrumb a:hover {
            color: var(--primary);
        }

        .page-hero .breadcrumb .active {
            color: var(--primary);
            font-weight: 500;
        }

        .page-hero h1 {
            font-size: clamp(1.9rem, 4vw, 2.8rem);
            font-weight: 700;
            line-height: 1.25;
            color: var(--text);
            margin-bottom: 1rem;
        }

        .hero-subtitle {
            font-size: 1.1rem;
            color: var(--text-secondary);
            max-width: 560px;
            line-height: 1.7;
            margin-bottom: 2rem;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
        }

        /* ===== 图文故事段 ===== */
        .story-section {
            padding: 5rem 0;
        }

        .story-section+.story-section {
            border-top: 1px solid rgba(14, 77, 74, 0.06);
        }

        .story-img-wrap {
            position: relative;
            border-radius: 18px;
            overflow: hidden;
            box-shadow: var(--shadow-hover);
            border: 1px solid rgba(14, 77, 74, 0.12);
        }

        .story-img-wrap img {
            width: 100%;
            display: block;
            object-fit: cover;
            min-height: 320px;
        }

        .story-img-wrap::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(185deg, rgba(255, 255, 255, 0.04) 0%, rgba(14, 77, 74, 0.16) 100%);
            pointer-events: none;
        }

        .story-deco {
            position: absolute;
            width: 280px;
            height: 280px;
            background: rgba(200, 155, 90, 0.12);
            border-radius: 50%;
            z-index: -1;
        }

        .story-deco.deco-left {
            left: -90px;
            bottom: -80px;
        }

        .story-deco.deco-right {
            right: -90px;
            top: -80px;
        }

        .story-section h2 {
            font-size: clamp(1.4rem, 2.8vw, 2rem);
            font-weight: 700;
            line-height: 1.35;
            color: var(--text);
            margin-bottom: 1.25rem;
        }

        .story-section p {
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 1rem;
        }

        .story-points {
            list-style: none;
            padding: 0;
            margin: 1.5rem 0 0;
        }

        .story-points li {
            display: flex;
            align-items: flex-start;
            gap: 0.6rem;
            margin-bottom: 0.65rem;
            color: var(--text);
            font-size: 0.95rem;
        }

        .story-points li i {
            color: var(--accent);
            font-size: 0.9rem;
            margin-top: 0.3rem;
        }

        /* ===== 数据条 ===== */
        .stats-band {
            background: rgba(14, 77, 74, 0.06);
            border-top: 1px solid rgba(14, 77, 74, 0.1);
            border-bottom: 1px solid rgba(14, 77, 74, 0.1);
            padding: 3.5rem 0;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
            text-align: center;
        }

        .stat-item {
            padding: 1rem;
        }

        .stat-num {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.1;
            letter-spacing: 1px;
        }

        .stat-label {
            font-size: 0.9rem;
            color: var(--primary);
            font-weight: 500;
            letter-spacing: 2px;
            margin-top: 0.35rem;
        }

        .stat-divider {
            border-right: 1px solid rgba(14, 77, 74, 0.12);
        }

        /* ===== 深色信任区 ===== */
        .trust-band {
            background: linear-gradient(135deg, var(--dark-bg) 0%, var(--primary-dark) 100%);
            padding: 4rem 0;
            color: rgba(255, 255, 255, 0.85);
            text-align: center;
        }

        .trust-quote {
            font-size: 1.35rem;
            font-weight: 600;
            color: #fff;
            letter-spacing: 2px;
            line-height: 1.6;
            margin-bottom: 2rem;
        }

        .trust-quote span {
            color: var(--accent);
        }

        .testimonial-card {
            max-width: 720px;
            margin: 0 auto;
            background: rgba(255, 255, 255, 0.07);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-left: 3px solid var(--accent);
            border-radius: var(--radius);
            padding: 1.75rem 2rem;
            text-align: left;
        }

        .testimonial-card p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.9);
            line-height: 1.7;
            margin-bottom: 0.5rem;
        }

        .testimonial-card .testimonial-author {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.5);
            letter-spacing: 1px;
        }

        .trust-badges {
            display: flex;
            justify-content: center;
            gap: 1.5rem;
            margin-top: 2rem;
            flex-wrap: wrap;
        }

        .trust-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.7);
            padding: 0.4rem 1rem;
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: 50px;
        }

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

        /* ===== FAQ ===== */
        .faq-section {
            padding: 5rem 0;
        }

        .faq-section h2 {
            font-size: clamp(1.4rem, 2.8vw, 2rem);
            font-weight: 700;
            text-align: center;
            margin-bottom: 2.5rem;
        }

        .faq-wrap {
            max-width: 800px;
            margin: 0 auto;
        }

        .accordion-item {
            border: 1px solid var(--border) !important;
            border-radius: 10px !important;
            margin-bottom: 1rem;
            background: var(--surface) !important;
            overflow: hidden;
            box-shadow: var(--shadow);
        }

        .accordion-button {
            background: var(--surface) !important;
            color: var(--text) !important;
            font-weight: 600;
            font-size: 1rem;
            padding: 1.1rem 1.25rem;
            box-shadow: none !important;
            border: none !important;
            transition: color var(--transition), border-color var(--transition);
            border-left: 3px solid transparent !important;
            border-radius: 10px !important;
        }

        .accordion-button:not(.collapsed) {
            color: var(--primary) !important;
            border-left-color: var(--accent) !important;
            background: rgba(14, 77, 74, 0.03) !important;
        }

        .accordion-button:focus {
            box-shadow: none !important;
            outline: none !important;
        }

        .accordion-button::after {
            background-image: none !important;
            content: "\f078";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            font-size: 0.85rem;
            color: var(--primary);
            transition: transform var(--transition), color var(--transition);
            width: auto;
            height: auto;
        }

        .accordion-button:not(.collapsed)::after {
            transform: rotate(180deg);
            color: var(--accent);
        }

        .accordion-body {
            padding: 0 1.25rem 1.25rem;
            color: var(--text-secondary);
            line-height: 1.75;
            font-size: 0.95rem;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 2rem 0 5rem;
        }

        .cta-card {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: 18px;
            padding: 3rem 2rem;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
            box-shadow: 0 16px 40px rgba(10, 52, 50, 0.18);
        }

        .cta-card::before {
            content: "";
            position: absolute;
            width: 320px;
            height: 320px;
            border-radius: 50%;
            background: rgba(200, 155, 90, 0.1);
            top: -120px;
            right: -80px;
        }

        .cta-card::after {
            content: "";
            position: absolute;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            border: 1px solid rgba(255, 255, 255, 0.08);
            bottom: -70px;
            left: -50px;
        }

        .cta-card h2 {
            font-size: clamp(1.4rem, 2.8vw, 2rem);
            color: #fff;
            margin-bottom: 0.75rem;
            position: relative;
            z-index: 1;
        }

        .cta-card p {
            color: rgba(255, 255, 255, 0.8);
            max-width: 520px;
            margin: 0 auto 1.75rem;
            position: relative;
            z-index: 1;
        }

        .cta-actions {
            display: flex;
            gap: 1rem;
            justify-content: center;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }

        .cta-card .btn-outline {
            color: #fff;
            border-color: rgba(255, 255, 255, 0.6);
        }

        .cta-card .btn-outline:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
            color: #fff;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--dark-bg);
            color: rgba(255, 255, 255, 0.75);
            padding: 3rem 0 0;
            margin-left: 240px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 2.5rem;
            padding-bottom: 2rem;
        }

        .footer-brand .logo-main {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--accent);
            letter-spacing: 3px;
        }

        .footer-brand .logo-sub {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.55);
            letter-spacing: 3px;
            margin-top: 2px;
        }

        .footer-desc {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.7;
            max-width: 380px;
            margin-top: 1rem;
        }

        .footer-col h4 {
            font-size: 1rem;
            color: #fff;
            font-weight: 600;
            margin-bottom: 1.2rem;
            letter-spacing: 1px;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-col ul li {
            margin-bottom: 0.55rem;
        }

        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.65);
            text-decoration: none;
            font-size: 0.92rem;
            transition: color var(--transition);
        }

        .footer-col ul li a:hover {
            color: var(--accent);
        }

        .footer-contact {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.4);
            margin-top: 1rem;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 1.25rem 0;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.4);
            text-align: center;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 991.98px) {
            .app-sidebar {
                display: none;
            }

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

            .site-footer {
                margin-left: 0;
            }

            .mobile-topbar {
                display: flex;
            }

            .mobile-drawer {
                display: flex;
            }

            .drawer-overlay {
                display: block;
            }

            .story-deco {
                display: none;
            }
        }

        @media (max-width: 767.98px) {
            .container-custom {
                padding: 0 1.25rem;
            }

            .section-padding,
            .story-section,
            .faq-section {
                padding: 3.5rem 0;
            }

            .stats-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }

            .stat-divider {
                border-right: none;
                border-bottom: 1px solid rgba(14, 77, 74, 0.1);
                padding-bottom: 1.2rem;
            }

            .stats-grid .stat-item:last-child .stat-divider {
                border-bottom: none;
                padding-bottom: 0;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }

            .page-hero {
                padding: 3rem 0;
            }

            .hero-actions .btn {
                width: 100%;
            }

            .cta-card {
                padding: 2rem 1.25rem;
            }

            .cta-actions .btn {
                width: 100%;
            }
        }

        @media (max-width: 575.98px) {
            .mobile-topbar {
                height: 56px;
            }

            .mobile-topbar .brand-logo .logo-main {
                font-size: 1.2rem;
            }

            .page-hero h1 {
                font-size: 1.9rem;
            }

            .hero-subtitle {
                font-size: 1rem;
            }

            .trust-quote {
                font-size: 1.1rem;
                letter-spacing: 1px;
            }

            .testimonial-card {
                padding: 1.25rem;
            }

            .story-img-wrap img {
                min-height: 240px;
            }

            .stat-num {
                font-size: 2.2rem;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #0E4D4A;
            --primary-dark: #0A3432;
            --accent: #C89B5A;
            --accent-light: #DDB87C;
            --bg: #F7F4EF;
            --surface: #FFFFFF;
            --text: #1F2A2A;
            --text-secondary: #5E6D6B;
            --border: #E6DFD3;
            --dark-bg: #0A2E2C;
            --radius: 14px;
            --radius-sm: 8px;
            --radius-lg: 18px;
            --shadow-sm: 0 1px 3px rgba(14,77,74,0.06);
            --shadow-lg: 0 10px 28px rgba(14,77,74,0.12);
            --transition: 0.3s ease;
        }

        *, *::before, *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            font-size: 1rem;
            line-height: 1.75;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.2s ease;
        }
        button {
            border: none;
            background: none;
            cursor: pointer;
        }
        ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        h1, h2, h3, h4, h5, h6 {
            margin: 0;
            line-height: 1.3;
            font-weight: 700;
        }
        p {
            margin: 0;
        }

        .container-custom {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 2rem;
            padding-right: 2rem;
        }
        .section {
            padding: 5rem 0;
        }
        .section-alt {
            background: rgba(14, 77, 74, 0.04);
        }
        .section-head {
            max-width: 640px;
            margin-bottom: 2.5rem;
        }
        .section-head h2 {
            font-size: clamp(1.4rem, 2.8vw, 2rem);
            color: var(--text);
            margin-bottom: 0.5rem;
        }
        .section-head p {
            color: var(--text-secondary);
            font-size: 1rem;
            line-height: 1.7;
        }
        .section-tag {
            display: inline-block;
            background: rgba(14, 77, 74, 0.1);
            color: var(--primary);
            font-size: 0.8rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 6px;
            margin-bottom: 0.9rem;
            letter-spacing: 0.5px;
        }

        /* === 按钮 === */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 0.75rem 1.5rem;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            border: 1px solid transparent;
            transition: all var(--transition);
        }
        .btn-primary {
            background: var(--accent);
            color: var(--primary-dark);
            border-color: var(--accent);
        }
        .btn-primary:hover {
            background: var(--accent-light);
            border-color: var(--accent-light);
            color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(200, 155, 90, 0.35);
        }
        .btn-outline {
            background: transparent;
            border-color: var(--primary);
            color: var(--primary);
        }
        .btn-outline:hover {
            background: rgba(14, 77, 74, 0.08);
            border-color: var(--primary-dark);
            color: var(--primary-dark);
        }
        .btn-primary-light {
            background: var(--accent);
            color: var(--primary-dark);
            border-color: var(--accent);
        }
        .btn-primary-light:hover {
            background: var(--accent-light);
            color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(200, 155, 90, 0.3);
        }
        .btn-ghost {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.45);
            color: #fff;
        }
        .btn-ghost:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.75);
            color: #fff;
        }
        .btn:focus-visible {
            outline: 3px solid rgba(200, 155, 90, 0.5);
            outline-offset: 2px;
        }

        /* === 侧边栏 === */
        .sidebar {
            position: fixed;
            left: 0;
            top: 0;
            width: 240px;
            height: 100vh;
            background: var(--primary-dark);
            z-index: 1040;
            display: flex;
            flex-direction: column;
        }
        .sidebar-logo {
            height: 100px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            gap: 2px;
        }
        .logo-main {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.1;
            letter-spacing: 1px;
        }
        .logo-sub {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.75);
            letter-spacing: 2px;
        }
        .sidebar-nav {
            flex: 1;
            padding: 1.4rem 0;
        }
        .nav-item {
            display: flex;
            align-items: center;
            height: 48px;
            padding-left: 20px;
            color: rgba(255, 255, 255, 0.78);
            font-size: 0.95rem;
            font-weight: 500;
            transition: all 0.25s ease;
            border-left: 4px solid transparent;
        }
        .nav-item:hover {
            background: rgba(255, 255, 255, 0.06);
            color: #fff;
        }
        .nav-item.active {
            background: rgba(255, 255, 255, 0.06);
            border-left-color: var(--accent);
            color: #fff;
        }
        .sidebar-foot {
            padding: 1.2rem 1.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.5);
        }

        /* === 移动端顶栏与抽屉 === */
        .mobile-header {
            position: sticky;
            top: 0;
            height: 64px;
            background: var(--primary-dark);
            display: none;
            align-items: center;
            justify-content: space-between;
            padding: 0 1.25rem;
            z-index: 1050;
        }
        .mobile-header .logo-main {
            font-size: 1.5rem;
        }
        .menu-toggle {
            width: 42px;
            height: 42px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            gap: 5px;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .menu-toggle:hover {
            background: rgba(255, 255, 255, 0.06);
        }
        .menu-toggle .bar {
            width: 20px;
            height: 2px;
            background: #fff;
            border-radius: 2px;
            transition: all 0.3s ease;
        }
        .menu-toggle.active .bar:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .menu-toggle.active .bar:nth-child(2) {
            opacity: 0;
        }
        .menu-toggle.active .bar:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }
        .drawer {
            position: fixed;
            top: 0;
            left: -260px;
            width: 260px;
            height: 100vh;
            background: var(--primary-dark);
            z-index: 1070;
            transition: left 0.3s ease;
            padding: 1.25rem 1rem;
            display: flex;
            flex-direction: column;
        }
        .drawer.open {
            left: 0;
        }
        .drawer-logo {
            padding: 0.75rem 0 1.25rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            margin-bottom: 1rem;
        }
        .drawer-logo .logo-main {
            display: block;
            font-size: 1.6rem;
        }
        .drawer-logo .logo-sub {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.7);
            letter-spacing: 2px;
        }
        .drawer-overlay {
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 1060;
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s ease;
        }
        .drawer-overlay.open {
            opacity: 1;
            visibility: visible;
        }

        /* === 主区域 === */
        .main-wrap {
            margin-left: 240px;
            min-height: 100vh;
            background: var(--bg);
            display: flex;
            flex-direction: column;
        }
        .main-content {
            flex: 1;
        }

        /* === Hero === */
        .page-hero {
            position: relative;
            padding: 5.5rem 0;
            overflow: hidden;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            z-index: 0;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(100deg, rgba(10, 52, 50, 0.92) 0%, rgba(14, 77, 74, 0.78) 55%, rgba(14, 77, 74, 0.45) 100%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 720px;
        }
        .hero-tag {
            display: inline-block;
            background: rgba(200, 155, 90, 0.2);
            color: var(--accent-light);
            font-size: 0.85rem;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: 6px;
            letter-spacing: 0.5px;
            margin-bottom: 1.2rem;
        }
        .hero-content h1 {
            font-size: clamp(1.9rem, 4vw, 2.8rem);
            color: #fff;
            margin-bottom: 1.1rem;
            line-height: 1.25;
        }
        .hero-desc {
            color: rgba(255, 255, 255, 0.88);
            font-size: 1.05rem;
            line-height: 1.8;
            max-width: 560px;
            margin-bottom: 2rem;
        }
        .hero-actions {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }

        /* === 参数列表 === */
        .guide-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 3rem;
            align-items: center;
        }
        .param-list {
            display: flex;
            flex-direction: column;
            gap: 1px;
            background: var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border);
        }
        .param-item {
            background: var(--surface);
            padding: 1.3rem 1.5rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 1.2rem;
            transition: background 0.2s;
        }
        .param-item:hover {
            background: rgba(14, 77, 74, 0.02);
        }
        .param-label {
            font-weight: 600;
            color: var(--primary);
            white-space: nowrap;
            flex-shrink: 0;
        }
        .param-value {
            color: var(--text-secondary);
            text-align: right;
            font-size: 0.92rem;
        }
        .guide-visual img {
            width: 100%;
            border-radius: 18px;
            box-shadow: var(--shadow-lg);
            border: 1px solid rgba(14, 77, 74, 0.08);
        }

        /* === 数据条 === */
        .data-strip {
            background: var(--dark-bg);
            padding: 2.5rem 0;
        }
        .data-row {
            display: flex;
            justify-content: space-around;
            gap: 2rem;
            flex-wrap: wrap;
        }
        .data-item {
            text-align: center;
            padding: 0.5rem 1rem;
        }
        .data-num {
            font-size: 2rem;
            font-weight: 700;
            color: var(--accent);
            display: block;
            line-height: 1.3;
        }
        .data-label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.7);
            letter-spacing: 0.5px;
        }

        /* === 表格 === */
        .table-wrap {
            background: var(--surface);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            overflow-x: auto;
            box-shadow: var(--shadow-sm);
        }
        .guide-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 560px;
        }
        .guide-table th {
            background: var(--primary);
            color: #fff;
            padding: 1rem 1.5rem;
            text-align: left;
            font-weight: 600;
            font-size: 0.9rem;
            letter-spacing: 0.3px;
            border: none;
        }
        .guide-table td {
            padding: 1rem 1.5rem;
            border-top: 1px solid var(--border);
            font-size: 0.95rem;
            color: var(--text);
        }
        .guide-table tbody tr:nth-child(even) td {
            background: rgba(247, 244, 239, 0.7);
        }
        .guide-table tbody tr:hover td {
            background: rgba(14, 77, 74, 0.05);
        }
        .guide-table td:first-child {
            font-weight: 600;
            color: var(--primary);
        }

        /* === 步骤流程 === */
        .steps-wrap {
            margin-top: 4rem;
        }
        .steps-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }
        .step-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 1.75rem 1.5rem;
            transition: all var(--transition);
            position: relative;
        }
        .step-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(14, 77, 74, 0.25);
        }
        .step-num {
            font-size: 0.8rem;
            font-weight: 700;
            color: var(--accent);
            letter-spacing: 1px;
            display: inline-block;
            padding: 2px 8px;
            background: rgba(200, 155, 90, 0.12);
            border-radius: 4px;
            margin-bottom: 0.8rem;
        }
        .step-item h3 {
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
        }
        .step-item p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.6;
        }

        /* === FAQ + 信息卡 === */
        .split-layout {
            display: grid;
            grid-template-columns: 1.4fr 0.6fr;
            gap: 3rem;
            align-items: start;
        }
        .faq-col .accordion-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 10px !important;
            margin-bottom: 1rem;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }
        .faq-col .accordion-button {
            background: transparent;
            color: var(--text);
            font-weight: 600;
            padding: 1.1rem 1.3rem;
            font-size: 1rem;
            box-shadow: none;
            border: none;
            position: relative;
            transition: background 0.25s, color 0.25s;
        }
        .faq-col .accordion-button:not(.collapsed) {
            background: rgba(14, 77, 74, 0.05);
            color: var(--primary);
            box-shadow: inset 3px 0 0 var(--accent);
        }
        .faq-col .accordion-button:focus {
            box-shadow: inset 3px 0 0 var(--accent);
            background: rgba(14, 77, 74, 0.04);
        }
        .faq-col .accordion-button::after {
            background-size: 12px;
            opacity: 0.5;
            transition: transform 0.3s;
        }
        .faq-col .accordion-body {
            padding: 0.25rem 1.3rem 1.25rem;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.75;
            border-top: 1px solid rgba(230, 223, 211, 0.5);
        }

        .info-col {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }
        .info-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 1.75rem;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }
        .info-card:hover {
            box-shadow: var(--shadow-lg);
        }
        .info-card-accent {
            background: var(--dark-bg);
            border-color: var(--dark-bg);
        }
        .info-card-accent .info-text {
            color: rgba(255, 255, 255, 0.75);
        }
        .info-card-head {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            margin-bottom: 1rem;
        }
        .info-icon {
            font-size: 1.2rem;
            color: var(--accent);
            line-height: 1;
        }
        .info-card h3 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text);
        }
        .info-card-accent h3 {
            color: #fff;
        }
        .info-list li {
            padding: 0.35rem 0;
            color: var(--text-secondary);
            font-size: 0.92rem;
            display: flex;
            align-items: flex-start;
            gap: 0.5rem;
        }
        .info-list li::before {
            content: "—";
            color: var(--accent);
            font-weight: 700;
        }
        .info-text {
            font-size: 0.92rem;
            line-height: 1.7;
            color: var(--text-secondary);
        }

        /* === CTA === */
        .cta-section {
            padding: 5rem 0;
        }
        .cta-inner {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: var(--radius-lg);
            padding: 4rem 3rem;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-inner::before {
            content: "";
            position: absolute;
            top: -100px;
            right: -100px;
            width: 300px;
            height: 300px;
            background: rgba(200, 155, 90, 0.06);
            border-radius: 50%;
        }
        .cta-inner h2 {
            color: #fff;
            font-size: clamp(1.5rem, 3vw, 2.2rem);
            margin-bottom: 0.6rem;
        }
        .cta-inner p {
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 2rem;
            font-size: 1rem;
        }
        .cta-buttons {
            display: flex;
            gap: 1rem;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* === 页脚 === */
        .site-footer {
            background: var(--dark-bg);
            color: rgba(255, 255, 255, 0.8);
            padding: 4rem 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr 1fr;
            gap: 3rem;
            padding-bottom: 3rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-brand .logo-main {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
        }
        .footer-brand .logo-sub {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.7);
            letter-spacing: 2px;
        }
        .footer-desc {
            margin-top: 1rem;
            font-size: 0.9rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.65);
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 1rem;
        }
        .footer-col ul li {
            margin-bottom: 0.45rem;
        }
        .footer-col ul a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.9rem;
            transition: color 0.2s;
        }
        .footer-col ul a:hover {
            color: var(--accent-light);
        }
        .footer-contact {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.45);
        }
        .footer-bottom {
            padding: 1.5rem 0;
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.45);
            border-top: 1px solid rgba(255, 255, 255, 0.05);
        }

        /* === 响应式 === */
        @media (min-width: 992px) {
            .mobile-header,
            .drawer,
            .drawer-overlay {
                display: none;
            }
        }

        @media (max-width: 991.98px) {
            .sidebar {
                display: none;
            }
            .mobile-header {
                display: flex;
            }
            .main-wrap {
                margin-left: 0;
            }
            .container-custom {
                padding-left: 1.5rem;
                padding-right: 1.5rem;
            }
            .section {
                padding: 3.5rem 0;
            }
            .guide-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .split-layout {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .steps-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .page-hero {
                padding: 4rem 0;
            }
        }

        @media (max-width: 767.98px) {
            .container-custom {
                padding-left: 1rem;
                padding-right: 1rem;
            }
            .section {
                padding: 3rem 0;
            }
            .steps-row {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .cta-section {
                padding: 3rem 0;
            }
            .cta-inner {
                padding: 2.8rem 1.25rem;
                border-radius: var(--radius);
            }
            .param-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 0.3rem;
            }
            .param-value {
                text-align: left;
            }
            .hero-actions {
                flex-direction: column;
                width: 100%;
            }
            .hero-actions .btn {
                width: 100%;
            }
            .cta-buttons {
                flex-direction: column;
                width: 100%;
            }
            .cta-buttons .btn {
                width: 100%;
            }
            .data-row {
                gap: 1rem;
            }
            .data-num {
                font-size: 1.5rem;
            }
            .page-hero {
                padding: 3rem 0;
            }
            .hero-content h1 {
                font-size: 1.8rem;
            }
        }

        @media (max-width: 576px) {
            .mobile-header {
                height: 56px;
            }
            .section-head h2 {
                font-size: 1.3rem;
            }
            .guide-table td,
            .guide-table th {
                padding: 0.8rem 1rem;
                font-size: 0.85rem;
            }
            .info-card {
                padding: 1.4rem;
            }
        }

/* roulang page: category3 */
:root {
      --primary: #0E4D4A;
      --primary-dark: #0A3432;
      --accent: #C89B5A;
      --accent-light: #DDB87C;
      --bg: #F7F4EF;
      --surface: #FFFFFF;
      --text: #1F2A2A;
      --text-secondary: #5E6D6B;
      --border: #E6DFD3;
      --dark-bg: #0A2E2C;
      --sidebar-width: 240px;
      --radius-card: 14px;
      --radius-btn: 8px;
      --shadow-card: 0 1px 3px rgba(14, 77, 74, 0.06);
      --shadow-hover: 0 10px 28px rgba(14, 77, 74, 0.12);
      --transition: 0.3s ease;
    }

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

    html { scroll-behavior: smooth; }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      background: var(--bg);
      color: var(--text);
      line-height: 1.75;
      font-size: 1rem;
    }

    a { text-decoration: none; color: inherit; transition: color 0.3s; }
    img { max-width: 100%; height: auto; display: block; }
    button { border: none; background: none; cursor: pointer; }
    input, textarea { font-family: inherit; }

    .container-custom {
      max-width: 1280px;
      margin: 0 auto;
      padding-left: 2rem;
      padding-right: 2rem;
    }

    .section-padding { padding-top: 5rem; padding-bottom: 5rem; }

    @media (max-width: 991px) {
      .section-padding { padding-top: 3rem; padding-bottom: 3rem; }
      .container-custom { padding-left: 1rem; padding-right: 1rem; }
    }

    /* ===== 左侧导航 App Shell ===== */
    .site-shell { display: flex; min-height: 100vh; }
    .sidebar {
      width: var(--sidebar-width);
      background: var(--primary-dark);
      position: fixed;
      top: 0; left: 0; bottom: 0;
      z-index: 1050;
      display: flex;
      flex-direction: column;
      padding: 0;
    }
    .sidebar-brand {
      height: 72px;
      display: flex;
      flex-direction: column;
      justify-content: center;
      padding: 0 24px;
      border-bottom: 1px solid rgba(255,255,255,0.08);
    }
    .logo-main {
      font-size: 1.5rem;
      font-weight: 800;
      color: var(--accent);
      letter-spacing: 1px;
      line-height: 1.2;
    }
    .logo-sub {
      font-size: 0.8rem;
      color: rgba(255,255,255,0.8);
      letter-spacing: 2px;
      line-height: 1.4;
    }
    .sidebar-nav { flex: 1; padding-top: 16px; display: flex; flex-direction: column; gap: 4px; }
    .sidebar-nav .nav-item {
      height: 48px;
      line-height: 48px;
      padding: 0 24px;
      display: block;
      color: rgba(255,255,255,0.8);
      font-size: 0.95rem;
      font-weight: 500;
      border-left: 4px solid transparent;
      transition: background 0.3s, color 0.3s, border-color 0.3s;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }
    .sidebar-nav .nav-item:hover { background: rgba(255,255,255,0.06); color: #fff; }
    .sidebar-nav .nav-item.active {
      color: #fff;
      border-left-color: var(--accent);
      background: rgba(255,255,255,0.04);
      font-weight: 600;
    }
    .sidebar-foot {
      padding: 20px 24px;
      border-top: 1px solid rgba(255,255,255,0.08);
      font-size: 0.75rem;
      color: rgba(255,255,255,0.5);
    }

    .main-content { margin-left: var(--sidebar-width); flex: 1; min-width: 0; }

    /* ===== 移动端顶栏与抽屉 ===== */
    .topbar {
      display: none;
      height: 64px;
      background: var(--primary-dark);
      padding: 0 1rem;
      align-items: center;
      justify-content: space-between;
      position: sticky;
      top: 0;
      z-index: 1040;
    }
    .topbar .logo-main { font-size: 1.3rem; }
    .topbar .logo-sub { font-size: 0.7rem; }
    .hamburger-btn {
      width: 40px; height: 40px;
      display: flex; align-items: center; justify-content: center;
      color: #fff;
      font-size: 1.2rem;
      border-radius: 8px;
      transition: background 0.3s;
    }
    .hamburger-btn:hover { background: rgba(255,255,255,0.1); }
    .drawer-mask {
      display: none;
      position: fixed; top: 0; left: 0; right: 0; bottom: 0;
      background: rgba(0,0,0,0.4);
      z-index: 1050;
    }
    .drawer-mask.show { display: block; }
    .drawer {
      position: fixed; top: 0; left: 0; bottom: 0;
      width: 260px;
      background: var(--primary-dark);
      z-index: 1060;
      transform: translateX(-100%);
      transition: transform 0.35s ease;
      display: flex;
      flex-direction: column;
      padding-top: 16px;
    }
    .drawer.open { transform: translateX(0); }
    .drawer .sidebar-brand { height: 72px; }
    .drawer .sidebar-nav { padding-top: 16px; }
    .drawer .sidebar-foot { margin-top: auto; }

    @media (max-width: 991px) {
      .sidebar { display: none; }
      .main-content { margin-left: 0; }
      .topbar { display: flex; }
    }
    @media (max-width: 576px) {
      .topbar { height: 56px; }
    }

    /* ===== 页面主体区块 ===== */
    .page-hero {
      padding: 4rem 0 3rem;
      background: linear-gradient(180deg, rgba(14,77,74,0.04) 0%, rgba(247,244,239,0) 100%);
      border-bottom: 1px solid var(--border);
    }
    .page-hero .breadcrumb {
      background: transparent;
      padding: 0;
      margin-bottom: 1.5rem;
      font-size: 0.875rem;
      color: var(--text-secondary);
    }
    .page-hero .breadcrumb a { color: var(--text-secondary); transition: color 0.3s; }
    .page-hero .breadcrumb a:hover { color: var(--primary); }
    .page-hero .breadcrumb-item + .breadcrumb-item::before { color: var(--border); }
    .page-hero h1 {
      font-size: clamp(1.9rem, 4vw, 2.8rem);
      font-weight: 700;
      line-height: 1.25;
      color: var(--text);
      margin-bottom: 1rem;
    }
    .page-hero h1 .accent { color: var(--accent); }
    .page-hero .hero-sub {
      color: var(--text-secondary);
      font-size: 1.05rem;
      max-width: 640px;
      line-height: 1.75;
    }

    /* ===== 时间线 ===== */
    .timeline-section { position: relative; }
    .timeline-section::before {
      content: '';
      position: absolute;
      top: 0; bottom: 0;
      left: 50%;
      width: 2px;
      background: rgba(14,77,74,0.18);
      transform: translateX(-50%);
    }
    .timeline-item {
      position: relative;
      width: 50%;
      padding: 0 3rem 3rem 0;
    }
    .timeline-item:nth-child(even) {
      left: 50%;
      padding: 0 0 3rem 3rem;
    }
    .timeline-item .timeline-dot {
      position: absolute;
      top: 6px;
      width: 14px; height: 14px;
      background: var(--accent);
      border-radius: 50%;
      right: -7px;
      border: 3px solid #fff;
      box-shadow: 0 0 0 2px rgba(200,155,90,0.3);
      z-index: 2;
    }
    .timeline-item:nth-child(even) .timeline-dot { left: -7px; right: auto; }
    .timeline-card {
      background: var(--surface);
      border: 1px solid rgba(14,77,74,0.12);
      border-radius: var(--radius-card);
      padding: 1.75rem;
      box-shadow: var(--shadow-card);
      transition: box-shadow 0.3s, transform 0.3s;
    }
    .timeline-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); }
    .timeline-year {
      display: inline-block;
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--accent);
      margin-bottom: 0.5rem;
      letter-spacing: 1px;
    }
    .timeline-card h3 {
      font-size: 1.15rem;
      font-weight: 600;
      color: var(--text);
      margin-bottom: 0.75rem;
    }
    .timeline-card p {
      color: var(--text-secondary);
      font-size: 0.9375rem;
      line-height: 1.7;
      margin-bottom: 0.5rem;
    }
    .timeline-card .timeline-tag {
      display: inline-block;
      background: rgba(14,77,74,0.08);
      color: var(--primary);
      font-size: 0.8rem;
      padding: 3px 10px;
      border-radius: 6px;
      margin-top: 0.5rem;
    }

    @media (max-width: 991px) {
      .timeline-section::before { left: 14px; transform: none; }
      .timeline-item, .timeline-item:nth-child(even) {
        width: 100%;
        left: 0;
        padding: 0 0 2.5rem 44px;
      }
      .timeline-item .timeline-dot,
      .timeline-item:nth-child(even) .timeline-dot {
        left: 7px;
        right: auto;
      }
    }

    /* ===== 服务概览卡片 ===== */
    .service-overview {
      background: var(--surface);
      border: 1px solid rgba(14,77,74,0.1);
      border-radius: var(--radius-card);
      padding: 2rem;
      transition: box-shadow 0.3s, transform 0.3s;
      height: 100%;
    }
    .service-overview:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); }
    .service-overview .icon-wrap {
      width: 48px; height: 48px;
      background: rgba(14,77,74,0.08);
      border-radius: 12px;
      display: flex; align-items: center; justify-content: center;
      font-size: 1.25rem;
      color: var(--primary);
      margin-bottom: 1.25rem;
    }
    .service-overview h3 {
      font-size: 1.15rem;
      font-weight: 600;
      margin-bottom: 0.75rem;
      color: var(--text);
    }
    .service-overview p {
      color: var(--text-secondary);
      font-size: 0.9375rem;
      line-height: 1.7;
      margin-bottom: 0;
    }

    /* ===== 数据条 ===== */
    .data-strip {
      background: rgba(14,77,74,0.06);
      border-radius: var(--radius-card);
      padding: 2.5rem 2rem;
      display: flex;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 1.5rem;
    }
    .data-strip .data-col { text-align: center; flex: 1; min-width: 140px; }
    .data-strip .data-num {
      font-size: 2.4rem;
      font-weight: 800;
      color: var(--accent);
      line-height: 1.2;
    }
    .data-strip .data-label {
      font-size: 0.875rem;
      color: var(--primary);
      font-weight: 600;
      margin-top: 0.25rem;
    }

    /* ===== 信任区 ===== */
    .trust-band {
      background: var(--dark-bg);
      color: rgba(255,255,255,0.85);
      padding: 4rem 0;
    }
    .trust-quote {
      font-size: 1.2rem;
      line-height: 1.8;
      max-width: 720px;
      margin: 0 auto 2rem;
      text-align: center;
      font-weight: 300;
    }
    .trust-author {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 12px;
    }
    .trust-avatar {
      width: 44px; height: 44px;
      border-radius: 50%;
      background: var(--accent);
      display: flex; align-items: center; justify-content: center;
      color: var(--primary-dark);
      font-weight: 700;
      font-size: 1rem;
    }
    .trust-name { font-size: 0.9375rem; font-weight: 600; color: #fff; }
    .trust-role { font-size: 0.8125rem; color: rgba(255,255,255,0.6); }

    /* ===== FAQ ===== */
    .custom-accordion .accordion-item {
      border: 1px solid var(--border) !important;
      border-radius: 10px !important;
      margin-bottom: 1rem;
      overflow: hidden;
      background: var(--surface);
    }
    .custom-accordion .accordion-button {
      background: var(--surface) !important;
      color: var(--text) !important;
      font-weight: 600;
      font-size: 1rem;
      padding: 1rem 1.25rem;
      box-shadow: none !important;
      border-left: 3px solid transparent;
      transition: border-color 0.3s, background 0.3s;
    }
    .custom-accordion .accordion-button:not(.collapsed) {
      border-left-color: var(--accent);
      color: var(--primary) !important;
      background: rgba(14,77,74,0.02) !important;
    }
    .custom-accordion .accordion-button::after {
      background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%230E4D4A'%3E%3Cpath d='M8 1a1 1 0 0 1 1 1v5h5a1 1 0 1 1 0 2H9v5a1 1 0 1 1-2 0V9H2a1 1 0 1 1 0-2h5V2a1 1 0 0 1 1-1z'/%3E%3C/svg%3E");
      transition: transform 0.3s;
    }
    .custom-accordion .accordion-body {
      padding: 0 1.25rem 1.25rem;
      color: var(--text-secondary);
      font-size: 0.9375rem;
      line-height: 1.75;
    }

    /* ===== 按钮 ===== */
    .btn-brand {
      display: inline-block;
      background: var(--accent);
      color: var(--primary-dark);
      font-weight: 600;
      font-size: 0.9375rem;
      padding: 0.75rem 1.5rem;
      border-radius: var(--radius-btn);
      transition: background 0.3s, transform 0.3s, box-shadow 0.3s;
      border: none;
      text-align: center;
    }
    .btn-brand:hover {
      background: var(--accent-light);
      transform: translateY(-1px);
      box-shadow: 0 4px 12px rgba(200,155,90,0.3);
      color: var(--primary-dark);
    }
    .btn-outline-brand {
      display: inline-block;
      background: transparent;
      color: var(--primary);
      font-weight: 600;
      font-size: 0.9375rem;
      padding: 0.75rem 1.5rem;
      border-radius: var(--radius-btn);
      border: 1px solid var(--primary);
      transition: background 0.3s, transform 0.3s;
    }
    .btn-outline-brand:hover {
      background: rgba(14,77,74,0.08);
      transform: translateY(-1px);
      color: var(--primary);
    }

    /* ===== CTA 区 ===== */
    .cta-section {
      background: var(--surface);
      border-top: 1px solid var(--border);
      border-bottom: 1px solid var(--border);
      padding: 3.5rem 0;
    }
    .cta-section h2 {
      font-size: clamp(1.4rem, 2.8vw, 2rem);
      font-weight: 700;
      color: var(--text);
      margin-bottom: 0.75rem;
    }
    .cta-section p {
      color: var(--text-secondary);
      margin-bottom: 1.5rem;
      max-width: 480px;
    }
    .subscribe-form { display: flex; gap: 0.75rem; max-width: 420px; }
    .subscribe-form input {
      flex: 1;
      padding: 0.75rem 1rem;
      border: 1px solid var(--border);
      border-radius: var(--radius-btn);
      font-size: 0.9375rem;
      background: var(--surface);
      color: var(--text);
      transition: border-color 0.3s, box-shadow 0.3s;
    }
    .subscribe-form input:focus {
      outline: none;
      border-color: var(--primary);
      box-shadow: 0 0 0 4px rgba(14,77,74,0.12);
    }
    @media (max-width: 576px) {
      .subscribe-form { flex-direction: column; }
      .subscribe-form .btn-brand { width: 100%; }
    }

    /* ===== 页脚 ===== */
    .site-footer {
      background: var(--dark-bg);
      color: rgba(255,255,255,0.8);
      padding: 4rem 0 2rem;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.2fr 1fr 1fr;
      gap: 2.5rem;
      margin-bottom: 3rem;
    }
    .footer-brand .logo-main { font-size: 1.5rem; color: var(--accent); font-weight: 800; }
    .footer-brand .logo-sub { font-size: 0.8rem; color: rgba(255,255,255,0.7); letter-spacing: 2px; }
    .footer-desc {
      margin-top: 1rem;
      font-size: 0.875rem;
      line-height: 1.7;
      color: rgba(255,255,255,0.6);
      max-width: 320px;
    }
    .footer-col h4 {
      color: #fff;
      font-size: 1rem;
      font-weight: 600;
      margin-bottom: 1rem;
    }
    .footer-col ul { list-style: none; padding: 0; margin: 0; }
    .footer-col ul li { margin-bottom: 0.5rem; }
    .footer-col ul li a {
      color: rgba(255,255,255,0.7);
      font-size: 0.875rem;
      transition: color 0.3s;
    }
    .footer-col ul li a:hover { color: var(--accent); }
    .footer-contact { font-size: 0.8125rem; color: rgba(255,255,255,0.4); }
    .footer-bottom {
      border-top: 1px solid rgba(255,255,255,0.08);
      padding-top: 2rem;
      text-align: center;
      font-size: 0.8125rem;
      color: rgba(255,255,255,0.5);
    }
    @media (max-width: 768px) {
      .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
    }

    /* ===== 章节标题 ===== */
    .section-title {
      font-size: clamp(1.4rem, 2.8vw, 2rem);
      font-weight: 700;
      color: var(--text);
      margin-bottom: 0.5rem;
    }
    .section-sub {
      color: var(--text-secondary);
      font-size: 0.9375rem;
      max-width: 640px;
      margin-bottom: 2.5rem;
    }

    /* ===== 通用卡片与卡片组 ===== */
    .row-gap { row-gap: 1.5rem; }

    /* ===== 链接文字 ===== */
    .text-link {
      color: var(--primary);
      font-weight: 600;
      font-size: 0.9rem;
      display: inline-flex;
      align-items: center;
      gap: 6px;
      transition: gap 0.3s;
    }
    .text-link:hover { gap: 10px; color: var(--primary-dark); }

    /* ===== 响应式工具 ===== */
    @media (max-width: 576px) {
      .btn-brand, .btn-outline-brand { width: 100%; text-align: center; }
      .hero-actions .btn-brand + .btn-outline-brand { margin-left: 0 !important; margin-top: 0.75rem; }
    }