/* roulang page: index */
:root {
    --pitch: #0B6E4F;
    --pitch-light: #10B981;
    --pitch-dark: #08583F;
    --energy: #F97316;
    --energy-dark: #EA6310;
    --warm: #FAF9F7;
    --ink: #1F2937;
    --muted: #6B7280;
    --border: rgba(16, 36, 28, 0.08);
    --radius: 18px;
    --radius-lg: 24px;
    --shadow: 0 8px 30px rgba(15, 40, 30, 0.08);
    --shadow-hover: 0 16px 44px rgba(15, 40, 30, 0.15);
    --transition: all 0.25s ease;
  }

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

  html {
    scroll-behavior: smooth;
  }

  body {
    font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    font-size: 16px;
    line-height: 1.8;
    background: var(--warm);
    color: var(--ink);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
  }

  img {
    display: block;
    max-width: 100%;
    height: auto;
    border-radius: 14px;
  }

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

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

  /* ===== Container ===== */
  .container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding-left: 22px;
    padding-right: 22px;
  }

  /* ===== Floating Capsule Nav ===== */
  .nav-wrapper {
    position: fixed;
    top: 14px;
    left: 0;
    right: 0;
    z-index: 90;
    padding: 0 20px;
  }

  .nav-capsule {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 10px 20px;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border: 1px solid rgba(16, 36, 28, 0.08);
    border-radius: 999px;
    box-shadow: 0 6px 24px rgba(15, 40, 30, 0.08);
    transition: var(--transition);
  }

  .nav-capsule:hover {
    box-shadow: 0 10px 32px rgba(15, 40, 30, 0.12);
  }

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

  .brand-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--pitch), var(--pitch-light));
    color: #fff;
    font-weight: 700;
    font-size: 18px;
    box-shadow: 0 4px 12px rgba(11, 110, 79, 0.3);
  }

  .brand-text {
    font-size: 18px;
    font-weight: 700;
    color: var(--ink);
    letter-spacing: 0.2px;
    white-space: nowrap;
  }
  .brand-text .brand-sub {
    font-weight: 600;
    color: var(--ink);
  }

  .nav-links {
    display: flex;
    align-items: center;
    gap: 4px;
  }

  .nav-links a {
    padding: 8px 14px;
    border-radius: 999px;
    font-size: 15px;
    font-weight: 500;
    color: #2b3d36;
    transition: var(--transition);
    white-space: nowrap;
  }

  .nav-links a:hover {
    background: rgba(11, 110, 79, 0.08);
    color: var(--pitch);
  }

  .nav-links a.active {
    background: rgba(11, 110, 79, 0.12);
    color: var(--pitch);
    font-weight: 600;
  }

  .nav-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 44px;
    padding: 0 24px;
    border-radius: 999px;
    background: var(--energy);
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    box-shadow: 0 4px 14px rgba(249, 115, 22, 0.35);
    transition: var(--transition);
    flex-shrink: 0;
    white-space: nowrap;
  }

  .nav-cta:hover {
    background: var(--energy-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 22px rgba(249, 115, 22, 0.4);
  }

  .nav-cta:focus-visible,
  .nav-toggle:focus-visible,
  .btn-primary:focus-visible,
  .btn-outline:focus-visible,
  .faq-q:focus-visible {
    outline: 3px solid rgba(249, 115, 22, 0.45);
    outline-offset: 2px;
  }

  .nav-toggle {
    display: none;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: rgba(11, 110, 79, 0.08);
    color: var(--pitch);
    font-size: 20px;
    transition: var(--transition);
  }

  .nav-toggle:hover {
    background: rgba(11, 110, 79, 0.15);
  }

  .mobile-drawer {
    display: none;
    position: fixed;
    top: 78px;
    left: 20px;
    right: 20px;
    z-index: 89;
    background: #ffffff;
    border-radius: 20px;
    border: 1px solid var(--border);
    box-shadow: 0 20px 50px rgba(15, 40, 30, 0.18);
    padding: 16px;
    flex-direction: column;
    gap: 4px;
  }

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

  .mobile-drawer a {
    padding: 12px 16px;
    border-radius: 14px;
    font-size: 16px;
    font-weight: 500;
    color: var(--ink);
  }

  .mobile-drawer a:hover {
    background: rgba(11, 110, 79, 0.06);
    color: var(--pitch);
  }

  .mobile-drawer .drawer-cta {
    background: var(--energy);
    color: #fff;
    text-align: center;
    font-weight: 600;
    margin-top: 8px;
  }

  .mobile-drawer .drawer-cta:hover {
    background: var(--energy-dark);
    color: #fff;
  }

  @media (max-width: 1024px) {
    .nav-links {
      display: none;
    }
    .nav-capsule .nav-cta {
      display: none;
    }
    .nav-toggle {
      display: flex;
    }
    .brand-text {
      font-size: 16px;
    }
  }

  @media (max-width: 768px) {
    .brand-sub {
      display: none;
    }
    .nav-wrapper {
      top: 10px;
      padding: 0 12px;
    }
    .nav-capsule {
      padding: 8px 14px;
    }
  }

  /* ===== Buttons ===== */
  .btn-primary,
  .btn-outline {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    height: 52px;
    padding: 0 30px;
    border-radius: 999px;
    font-size: 16px;
    font-weight: 600;
    transition: var(--transition);
    white-space: nowrap;
  }

  .btn-primary {
    background: var(--energy);
    color: #fff;
    box-shadow: 0 6px 18px rgba(249, 115, 22, 0.35);
  }

  .btn-primary:hover {
    background: var(--energy-dark);
    transform: translateY(-2px);
    box-shadow: 0 12px 28px rgba(249, 115, 22, 0.4);
  }

  .btn-primary:active {
    transform: translateY(0);
    box-shadow: 0 4px 12px rgba(249, 115, 22, 0.3);
  }

  .btn-outline {
    background: transparent;
    color: var(--pitch);
    border: 1.5px solid var(--pitch);
  }

  .btn-outline:hover {
    background: rgba(11, 110, 79, 0.08);
    transform: translateY(-2px);
    box-shadow: 0 8px 18px rgba(11, 110, 79, 0.1);
  }

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

  @media (max-width: 520px) {
    .btn-primary,
    .btn-outline {
      height: 48px;
      padding: 0 22px;
      font-size: 15px;
    }
  }

  /* ===== Hero ===== */
  .hero {
    position: relative;
    padding: 148px 0 88px;
    background-image: url('/assets/images/backpic/back-1.png');
    background-size: cover;
    background-position: center 30%;
    overflow: hidden;
  }

  .hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(250, 249, 247, 0.96) 0%, rgba(250, 249, 247, 0.88) 45%, rgba(250, 249, 247, 0.55) 100%);
    z-index: 1;
  }

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

  .hero-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 56px;
    align-items: center;
  }

  .hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    border-radius: 999px;
    background: rgba(11, 110, 79, 0.1);
    color: var(--pitch);
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 20px;
  }

  .hero-badge::before {
    content: '';
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--pitch-light);
  }

  .hero h1 {
    font-size: 44px;
    line-height: 1.2;
    font-weight: 800;
    color: var(--ink);
    letter-spacing: -0.5px;
    margin-bottom: 18px;
  }

  .hero h1 .accent {
    color: var(--pitch);
  }

  .hero-sub {
    font-size: 18px;
    line-height: 1.8;
    color: #4b5563;
    max-width: 520px;
    margin-bottom: 28px;
  }

  .hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-bottom: 24px;
  }

  .hero-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    font-size: 14px;
    color: var(--muted);
  }

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

  .hero-tags span::before {
    content: '✓';
    color: var(--pitch-light);
    font-weight: 700;
  }

  .hero-visual {
    position: relative;
  }

  .hero-visual img {
    width: 100%;
    max-width: 520px;
    border-radius: 24px;
    box-shadow: 0 24px 60px rgba(15, 40, 30, 0.22);
    border: 4px solid #fff;
  }

  .hero-visual .floating-card {
    position: absolute;
    bottom: 28px;
    left: -20px;
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 12px 34px rgba(15, 40, 30, 0.16);
    padding: 14px 18px;
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
    animation: floatSoft 4s ease-in-out infinite;
  }

  .hero-visual .floating-card .dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--pitch-light);
    box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.18);
  }

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

  @media (max-width: 1024px) {
    .hero {
      padding: 130px 0 64px;
    }
    .hero h1 {
      font-size: 38px;
    }
    .hero-grid {
      gap: 32px;
    }
  }

  @media (max-width: 768px) {
    .hero {
      padding: 112px 0 48px;
    }
    .hero-grid {
      grid-template-columns: 1fr;
      gap: 32px;
    }
    .hero h1 {
      font-size: 32px;
    }
    .hero-sub {
      font-size: 16px;
    }
    .hero-visual .floating-card {
      display: none;
    }
  }

  /* ===== Section Common ===== */
  .section {
    padding: 88px 0;
  }

  .section-sm {
    padding: 56px 0;
  }

  .section-head {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 52px;
  }

  .section-head h2 {
    font-size: 32px;
    line-height: 1.3;
    font-weight: 800;
    color: var(--ink);
    margin-bottom: 14px;
    letter-spacing: -0.4px;
  }

  .section-head p {
    font-size: 17px;
    line-height: 1.8;
    color: var(--muted);
  }

  .section-head .eyebrow {
    display: inline-block;
    padding: 4px 14px;
    border-radius: 999px;
    background: rgba(11, 110, 79, 0.08);
    color: var(--pitch);
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 12px;
    letter-spacing: 0.5px;
  }

  @media (max-width: 768px) {
    .section {
      padding: 56px 0;
    }
    .section-head {
      margin-bottom: 36px;
    }
    .section-head h2 {
      font-size: 26px;
    }
    .section-head p {
      font-size: 15px;
    }
  }

  /* ===== Feature Slider ===== */
  .feature-slider-wrap {
    position: relative;
  }

  .feature-slider {
    display: flex;
    gap: 24px;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    padding-bottom: 24px;
    scrollbar-width: thin;
    scrollbar-color: rgba(11, 110, 79, 0.25) transparent;
    -webkit-overflow-scrolling: touch;
  }

  .feature-slider::-webkit-scrollbar {
    height: 6px;
  }

  .feature-slider::-webkit-scrollbar-thumb {
    background: rgba(11, 110, 79, 0.25);
    border-radius: 999px;
  }

  .feature-card {
    flex: 0 0 340px;
    scroll-snap-align: start;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 16px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
  }

  .feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(11, 110, 79, 0.25);
  }

  .feature-card .shot-img {
    border-radius: 14px;
    overflow: hidden;
    margin-bottom: 18px;
    background: rgba(11, 110, 79, 0.06);
  }

  .feature-card .shot-img img {
    width: 100%;
    height: 190px;
    object-fit: cover;
    border-radius: 14px;
  }

  .feature-card h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--ink);
    margin-bottom: 8px;
    padding: 0 6px;
  }

  .feature-card p {
    font-size: 15px;
    line-height: 1.7;
    color: var(--muted);
    padding: 0 6px 8px;
    flex: 1;
  }

  @media (max-width: 640px) {
    .feature-card {
      flex-basis: 280px;
    }
    .feature-card .shot-img img {
      height: 160px;
    }
  }

  /* ===== Stats ===== */
  .stats-section {
    background: var(--pitch);
    padding: 48px 0;
    border-radius: 0;
  }

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

  .stat-item .stat-num {
    font-size: 36px;
    font-weight: 800;
    color: #fff;
    line-height: 1.2;
    font-variant-numeric: tabular-nums;
  }

  .stat-item .stat-label {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.75);
    margin-top: 6px;
    letter-spacing: 0.5px;
  }

  @media (max-width: 900px) {
    .stats-grid {
      grid-template-columns: repeat(2, 1fr);
    }
  }

  @media (max-width: 520px) {
    .stats-grid {
      grid-template-columns: 1fr 1fr;
      gap: 24px;
    }
    .stat-item .stat-num {
      font-size: 28px;
    }
  }

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

  .req-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 36px 32px;
    box-shadow: var(--shadow);
    transition: var(--transition);
  }

  .req-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-3px);
  }

  .req-card .req-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 22px;
  }

  .req-card .req-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: 700;
    color: #fff;
    background: linear-gradient(135deg, var(--pitch), var(--pitch-light));
    box-shadow: 0 6px 16px rgba(11, 110, 79, 0.25);
  }

  .req-card.android .req-icon {
    background: linear-gradient(135deg, #2d9c5e, var(--pitch-light));
  }

  .req-card h3 {
    font-size: 22px;
    font-weight: 700;
    color: var(--ink);
  }

  .req-card ul {
    list-style: none;
  }

  .req-card ul li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 8px 0;
    font-size: 16px;
    color: #3f4d46;
    border-bottom: 1px dashed rgba(16, 36, 28, 0.08);
  }

  .req-card ul li:last-child {
    border-bottom: none;
  }

  .req-card ul li::before {
    content: '';
    flex-shrink: 0;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--pitch-light);
    margin-top: 11px;
  }

  .req-card .req-note {
    margin-top: 16px;
    padding: 12px 16px;
    background: rgba(11, 110, 79, 0.05);
    border-radius: 12px;
    font-size: 14px;
    color: var(--muted);
  }

  @media (max-width: 768px) {
    .req-grid {
      grid-template-columns: 1fr;
    }
    .req-card {
      padding: 26px 22px;
    }
  }

  /* ===== News / CMS List ===== */
  .news-list {
    display: flex;
    flex-direction: column;
    gap: 18px;
    max-width: 880px;
    margin: 0 auto;
  }

  .news-card {
    display: flex;
    align-items: center;
    gap: 22px;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 22px 26px;
    box-shadow: var(--shadow);
    transition: var(--transition);
  }

  .news-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateX(6px);
    border-color: rgba(11, 110, 79, 0.25);
  }

  .news-card .news-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
    min-width: 140px;
  }

  .news-tag {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 999px;
    background: rgba(11, 110, 79, 0.1);
    color: var(--pitch);
    font-size: 13px;
    font-weight: 600;
  }

  .news-time {
    font-size: 14px;
    color: var(--muted);
    font-variant-numeric: tabular-nums;
    white-space: nowrap;
  }

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

  .news-card .news-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--ink);
    margin-bottom: 4px;
    line-height: 1.4;
    transition: var(--transition);
  }

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

  .news-card .news-excerpt {
    font-size: 15px;
    color: var(--muted);
    line-height: 1.6;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
  }

  .news-card .news-arrow {
    flex-shrink: 0;
    font-size: 20px;
    color: var(--pitch);
    transition: var(--transition);
  }

  .news-card:hover .news-arrow {
    transform: translateX(6px);
  }

  .empty-state {
    text-align: center;
    padding: 48px 20px;
    background: rgba(11, 110, 79, 0.04);
    border: 2px dashed rgba(11, 110, 79, 0.2);
    border-radius: var(--radius-lg);
    color: var(--muted);
    font-size: 16px;
    max-width: 880px;
    margin: 0 auto;
  }

  @media (max-width: 768px) {
    .news-card {
      flex-direction: column;
      align-items: flex-start;
      gap: 10px;
      padding: 18px 20px;
    }
    .news-card .news-meta {
      flex-wrap: wrap;
      min-width: 0;
    }
    .news-card .news-excerpt {
      -webkit-line-clamp: 2;
    }
  }

  /* ===== Reviews ===== */
  .reviews-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    max-width: 1000px;
    margin: 0 auto;
  }

  .review-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 28px 30px;
    box-shadow: var(--shadow);
    transition: var(--transition);
  }

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

  .review-card .stars {
    color: #f59e0b;
    font-size: 18px;
    letter-spacing: 2px;
    margin-bottom: 12px;
  }

  .review-card blockquote {
    font-size: 16px;
    line-height: 1.8;
    color: #2b3d36;
    margin-bottom: 18px;
  }

  .review-card .review-user {
    display: flex;
    align-items: center;
    gap: 12px;
  }

  .review-card .avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--pitch), var(--pitch-light));
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    font-weight: 700;
  }

  .review-card .review-user strong {
    display: block;
    font-size: 15px;
    color: var(--ink);
  }

  .review-card .review-user span {
    font-size: 13px;
    color: var(--muted);
  }

  @media (max-width: 768px) {
    .reviews-grid {
      grid-template-columns: 1fr;
    }
    .review-card {
      padding: 20px 22px;
    }
  }

  /* ===== FAQ ===== */
  .faq-list {
    max-width: 840px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
  }

  .faq-item {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0 24px;
    transition: var(--transition);
    overflow: hidden;
  }

  .faq-item:hover {
    border-color: rgba(11, 110, 79, 0.28);
    box-shadow: var(--shadow);
  }

  .faq-item.open {
    border-color: rgba(11, 110, 79, 0.4);
    box-shadow: var(--shadow);
  }

  .faq-q {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 22px 0;
    font-size: 17px;
    font-weight: 600;
    color: var(--ink);
    text-align: left;
    transition: var(--transition);
  }

  .faq-q .faq-icon {
    flex-shrink: 0;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: rgba(11, 110, 79, 0.08);
    color: var(--pitch);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 500;
    transition: transform 0.3s ease;
  }

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

  .faq-a {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
  }

  .faq-item.open .faq-a {
    max-height: 320px;
  }

  .faq-a p {
    padding: 0 0 24px;
    font-size: 15px;
    line-height: 1.8;
    color: #3f4d46;
  }

  @media (max-width: 640px) {
    .faq-item {
      padding: 0 18px;
    }
    .faq-q {
      font-size: 15px;
      padding: 18px 0;
    }
  }

  /* ===== CTA Banner ===== */
  .cta-section {
    padding: 24px 0 96px;
  }

  .cta-banner {
    position: relative;
    background: linear-gradient(135deg, var(--pitch) 0%, var(--pitch-dark) 100%);
    border-radius: 32px;
    padding: 64px 56px;
    text-align: center;
    overflow: hidden;
  }

  .cta-banner::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url('/assets/images/backpic/back-2.png') no-repeat center / cover;
    opacity: 0.18;
    z-index: 0;
  }

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

  .cta-banner h2 {
    font-size: 36px;
    line-height: 1.25;
    font-weight: 800;
    color: #fff;
    margin-bottom: 12px;
    letter-spacing: -0.3px;
  }

  .cta-banner p {
    font-size: 17px;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 32px;
    max-width: 520px;
    margin-left: auto;
    margin-right: auto;
  }

  .cta-banner .cta-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 14px;
  }

  .cta-banner .btn-white {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 54px;
    padding: 0 34px;
    border-radius: 999px;
    background: #fff;
    color: var(--pitch);
    font-size: 16px;
    font-weight: 700;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
    transition: var(--transition);
  }

  .cta-banner .btn-white:hover {
    transform: translateY(-3px);
    box-shadow: 0 14px 34px rgba(0, 0, 0, 0.22);
    background: #f0fdf9;
  }

  .cta-banner .btn-ghost {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 54px;
    padding: 0 34px;
    border-radius: 999px;
    background: transparent;
    color: #fff;
    font-size: 16px;
    font-weight: 600;
    border: 1.5px solid rgba(255, 255, 255, 0.45);
    transition: var(--transition);
  }

  .cta-banner .btn-ghost:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: #fff;
  }

  @media (max-width: 768px) {
    .cta-section {
      padding: 16px 0 64px;
    }
    .cta-banner {
      padding: 44px 24px;
      border-radius: 24px;
    }
    .cta-banner h2 {
      font-size: 27px;
    }
    .cta-banner p {
      font-size: 15px;
    }
  }

  /* ===== Footer ===== */
  .site-footer {
    background: #0b2a21;
    color: rgba(255, 255, 255, 0.72);
    padding: 72px 0 32px;
  }

  .footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 0.8fr 0.8fr;
    gap: 48px;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    margin-bottom: 32px;
  }

  .footer-brand .footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
  }

  .footer-brand .footer-logo .logo-icon {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--pitch-light), var(--pitch));
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 700;
  }

  .footer-brand .footer-logo h3 {
    color: #fff;
    font-size: 18px;
    font-weight: 700;
  }

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

  .footer-col h4 {
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 16px;
    letter-spacing: 0.5px;
  }

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

  .footer-col ul li {
    margin-bottom: 10px;
  }

  .footer-col ul li a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.62);
    transition: var(--transition);
  }

  .footer-col ul li a:hover {
    color: #fff;
    padding-left: 4px;
  }

  .footer-bottom {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.45);
  }

  .footer-bottom .footer-links {
    display: flex;
    gap: 18px;
  }

  .footer-bottom .footer-links a {
    color: rgba(255, 255, 255, 0.45);
  }

  .footer-bottom .footer-links a:hover {
    color: #fff;
  }

  @media (max-width: 900px) {
    .footer-grid {
      grid-template-columns: 1fr 1fr;
    }
  }

  @media (max-width: 640px) {
    .footer-grid {
      grid-template-columns: 1fr;
      gap: 32px;
    }
    .footer-bottom {
      flex-direction: column;
      text-align: center;
    }
  }

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

/* roulang page: category1 */
:root{
  --primary:#0B6E4F;
  --primary-light:#10B981;
  --accent:#F97316;
  --bg-warm:#FAF9F7;
  --text-ink:#1F2937;
  --text-mute:#6B7280;
  --border-soft:rgba(0,0,0,.08);
  --radius-card:18px;
  --radius-pill:999px;
  --shadow-card:0 4px 16px rgba(0,0,0,.05),0 1px 3px rgba(0,0,0,.04);
  --shadow-hover:0 12px 28px rgba(0,0,0,.09),0 4px 8px rgba(0,0,0,.05);
}
html{scroll-behavior:smooth}
body{
  font-family:'PingFang SC','Hiragino Sans GB','Microsoft YaHei',sans-serif;
  background:var(--bg-warm);
  color:var(--text-ink);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
.container-fluid{max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
a{color:inherit;text-decoration:none;transition:color .2s}
img{max-width:100%;height:auto;display:block}
button{font-family:inherit}
/* Float Capsule Nav */
.nav-wrapper{
  position:fixed;top:14px;left:0;right:0;z-index:1000;
  padding:0 20px;
  pointer-events:none;
}
.nav-capsule{
  max-width:1200px;margin:0 auto;
  display:flex;align-items:center;
  background:rgba(255,255,255,.86);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border:1px solid rgba(255,255,255,.65);
  box-shadow:0 8px 30px rgba(0,0,0,.08);
  border-radius:var(--radius-pill);
  padding:10px 20px;
  pointer-events:auto;
  transition:box-shadow .3s,transform .3s;
}
.nav-capsule .brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-icon{
  width:42px;height:42px;border-radius:14px;
  background:linear-gradient(135deg,var(--primary),var(--primary-light));
  color:#fff;font-weight:700;font-size:22px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 4px 12px rgba(11,110,79,.3);
}
.brand-text{font-weight:700;font-size:20px;color:var(--text-ink);line-height:1.2;white-space:nowrap}
.brand-sub{display:block;font-size:11px;font-weight:500;color:var(--text-mute);letter-spacing:.4px}
.nav-links{margin-left:36px;display:flex;gap:4px;flex-wrap:wrap}
.nav-links a{
  padding:8px 16px;border-radius:var(--radius-pill);
  font-size:15px;color:var(--text-mute);font-weight:500;
  transition:background .2s,color .2s;
}
.nav-links a:hover{background:rgba(16,185,129,.09);color:var(--primary)}
.nav-links a.active{background:rgba(11,110,79,.1);color:var(--primary);font-weight:600}
.nav-cta{
  margin-left:auto;padding:10px 24px;border-radius:var(--radius-pill);
  background:var(--accent);color:#fff;font-weight:600;font-size:15px;
  box-shadow:0 6px 16px rgba(249,115,22,.3);
  transition:background .25s,transform .25s,box-shadow .25s;
  flex-shrink:0;
}
.nav-cta:hover{background:#ea580c;transform:translateY(-2px);box-shadow:0 10px 22px rgba(249,115,22,.38)}
.nav-cta:focus-visible{outline:3px solid rgba(249,115,22,.45);outline-offset:2px}
.nav-toggle{display:none;background:none;border:none;cursor:pointer;color:var(--text-ink);padding:8px;border-radius:10px}
.nav-toggle:hover{background:rgba(0,0,0,.05)}
/* Buttons */
.btn-primary,.btn-outline,.btn-dark{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-pill);font-weight:600;font-size:16px;
  padding:14px 32px;height:52px;transition:all .25s;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 8px 20px rgba(249,115,22,.3)}
.btn-primary:hover{background:#ea580c;transform:translateY(-2px);box-shadow:0 12px 26px rgba(249,115,22,.4)}
.btn-primary:focus-visible,.btn-outline:focus-visible,.btn-dark:focus-visible{outline:3px solid rgba(249,115,22,.45);outline-offset:2px}
.btn-outline{border:2px solid var(--primary);color:var(--primary);background:transparent}
.btn-outline:hover{background:rgba(11,110,79,.08);transform:translateY(-2px)}
.btn-dark{background:var(--primary);color:#fff;box-shadow:0 8px 20px rgba(11,110,79,.3)}
.btn-dark:hover{background:#0a5d44;transform:translateY(-2px);box-shadow:0 12px 26px rgba(11,110,79,.38)}
/* Badge */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:var(--radius-pill);
  background:rgba(11,110,79,.09);color:var(--primary);
  font-size:13px;font-weight:600;line-height:1.4;
}
/* Hero */
.hero-section{
  position:relative;padding:150px 0 80px;overflow:hidden;
  background:
    linear-gradient(rgba(250,249,247,.92),rgba(250,249,247,.94)),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
}
.hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:56px;align-items:center}
.hero-subtitle{font-size:20px;color:var(--text-mute);margin-top:16px;line-height:1.8}
.hero-trust{margin-top:28px;display:flex;flex-wrap:wrap;gap:12px}
.hero-visual{
  border-radius:24px;overflow:hidden;box-shadow:0 24px 60px rgba(11,110,79,.16);
  transform:rotate(1deg);transition:transform .4s;
}
.hero-visual:hover{transform:rotate(0deg) scale(1.01)}
@media(max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-section{padding:125px 0 56px}
}
@media(max-width:768px){
  .nav-wrapper{padding:0 14px}
  .nav-capsule{padding:8px 14px;border-radius:22px}
  .nav-links{
    position:absolute;top:calc(100% + 10px);left:14px;right:14px;
    background:rgba(255,255,255,.98);border-radius:20px;
    flex-direction:column;padding:16px;gap:8px;
    box-shadow:0 16px 40px rgba(0,0,0,.1);
    display:none;
  }
  .nav-links.open{display:flex}
  .nav-cta{display:none}
  .nav-toggle{display:inline-flex}
  .hero-section{padding:110px 0 48px}
  .hero-subtitle{font-size:17px}
  .btn-primary,.btn-outline,.btn-dark{padding:12px 24px;height:48px;font-size:15px}
}
/* Section General */
.section{padding:76px 0}
.section-label{font-size:14px;letter-spacing:2px;color:var(--primary);font-weight:700;text-transform:uppercase}
.section-title{font-size:32px;font-weight:700;line-height:1.3;margin-top:10px;color:var(--text-ink)}
.section-desc{font-size:17px;color:var(--text-mute);margin-top:12px;max-width:680px;line-height:1.8}
@media(max-width:768px){
  .section{padding:48px 0}
  .section-title{font-size:26px}
}
/* Image Text Blocks */
.img-text-block{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;padding:56px 0}
.img-text-block.reverse .img-col{order:2}
.img-text-block .img-col img{border-radius:20px;box-shadow:var(--shadow-card);transition:transform .4s,box-shadow .4s}
.img-text-block .img-col img:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.text-col .label{font-size:13px;letter-spacing:2px;color:var(--primary);font-weight:700}
.text-col h3{font-size:28px;line-height:1.35;font-weight:700;margin-top:12px;color:var(--text-ink)}
.text-col p{font-size:16px;line-height:1.85;color:var(--text-mute);margin-top:16px}
.point-list{margin-top:24px;display:flex;flex-direction:column;gap:12px}
.point-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--text-ink);line-height:1.6}
.point-list li span.dot{
  width:22px;height:22px;border-radius:50%;background:rgba(16,185,129,.15);
  color:var(--primary);font-size:12px;font-weight:700;
  display:flex;align-items:center;justify-content:center;flex-shrink:0;margin-top:3px;
}
@media(max-width:1024px){
  .img-text-block{grid-template-columns:1fr;gap:32px}
  .img-text-block.reverse .img-col{order:0}
}
/* Step Cards */
.step-card{
  background:#fff;border:1px solid var(--border-soft);border-radius:var(--radius-card);
  padding:32px 28px;box-shadow:var(--shadow-card);position:relative;
  transition:transform .3s,box-shadow .3s,border-color .3s;
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(16,185,129,.35)}
.step-num{
  font-size:44px;font-weight:800;color:rgba(11,110,79,.12);line-height:1;
  font-variant-numeric:tabular-nums;
}
.step-card h4{font-size:18px;font-weight:700;margin-top:14px;color:var(--text-ink)}
.step-card p{font-size:14px;color:var(--text-mute);margin-top:8px;line-height:1.7}
/* Requirement Cards */
.req-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:32px}
.req-card{
  background:#fff;border:1px solid var(--border-soft);border-radius:20px;
  padding:34px 30px;box-shadow:var(--shadow-card);
  transition:transform .3s,box-shadow .3s;
}
.req-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.req-icon{
  width:56px;height:56px;border-radius:16px;
  background:linear-gradient(135deg,var(--primary),var(--primary-light));
  color:#fff;display:flex;align-items:center;justify-content:center;font-size:26px;
  box-shadow:0 8px 20px rgba(11,110,79,.25);
}
.req-card h4{font-size:20px;font-weight:700;margin-top:20px;color:var(--text-ink)}
.req-list{margin-top:16px;display:flex;flex-direction:column;gap:10px}
.req-list li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--text-mute)}
.req-list li b{color:var(--text-ink);font-weight:600}
.req-list li::before{content:'';width:8px;height:8px;border-radius:50%;background:var(--primary-light);margin-top:7px;flex-shrink:0}
@media(max-width:768px){.req-grid{grid-template-columns:1fr;gap:20px}}
/* Quick Jump */
.jump-pills{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}
.jump-pill{
  display:inline-flex;align-items:center;gap:10px;padding:14px 28px;
  border-radius:var(--radius-pill);background:#fff;border:1px solid var(--border-soft);
  box-shadow:var(--shadow-card);font-weight:600;font-size:15px;color:var(--text-ink);
  transition:all .25s;
}
.jump-pill:hover{border-color:rgba(16,185,129,.4);transform:translateY(-2px);box-shadow:var(--shadow-hover);color:var(--primary)}
.jump-pill .arrow{font-size:16px;color:var(--primary)}
/* FAQ */
.faq-item{
  background:#fff;border:1px solid var(--border-soft);border-radius:18px;
  margin-bottom:14px;overflow:hidden;transition:border-color .3s,box-shadow .3s;
}
.faq-item.open{border-color:rgba(16,185,129,.4);box-shadow:var(--shadow-card)}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:22px 26px;cursor:pointer;font-size:16px;font-weight:600;color:var(--text-ink);
  background:transparent;border:none;text-align:left;width:100%;line-height:1.5;
  transition:color .2s;
}
.faq-q:hover{color:var(--primary)}
.faq-icon{width:30px;height:30px;border-radius:50%;background:rgba(11,110,79,.1);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:400;transition:all .3s;flex-shrink:0;position:relative}
.faq-icon::after{content:'+';position:absolute;line-height:1}
.faq-item.open .faq-icon{background:var(--primary);color:#fff;transform:rotate(50deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s ease;padding:0 26px;color:var(--text-mute);font-size:15px;line-height:1.8}
.faq-item.open .faq-a{max-height:240px;padding-bottom:24px;padding-top:2px}
/* CTA Banner */
.cta-banner{
  border-radius:28px;background:linear-gradient(120deg,var(--primary),#0d8a63);
  padding:68px 56px;color:#fff;position:relative;overflow:hidden;
  box-shadow:0 24px 60px rgba(11,110,79,.3);
}
.cta-banner::after{
  content:'';position:absolute;right:-40px;top:-40px;width:220px;height:220px;
  border-radius:50%;background:rgba(255,255,255,.07);
}
.cta-banner h2{font-size:34px;font-weight:800;line-height:1.3}
.cta-banner p{font-size:17px;opacity:.92;margin-top:12px;max-width:560px;line-height:1.8}
.cta-buttons{margin-top:30px;display:flex;flex-wrap:wrap;gap:14px}
@media(max-width:768px){
  .cta-banner{padding:40px 24px;border-radius:20px}
  .cta-banner h2{font-size:26px}
}
/* Footer */
.site-footer{background:#0c2d24;color:rgba(255,255,255,.82);padding:64px 0 28px;margin-top:80px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:48px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.1)}
.footer-logo{display:flex;align-items:center;gap:12px}
.logo-icon{width:44px;height:44px;border-radius:14px;background:linear-gradient(135deg,var(--primary-light),var(--primary));color:#fff;font-size:22px;font-weight:700;display:flex;align-items:center;justify-content:center}
.footer-logo h3{font-size:20px;font-weight:700;color:#fff}
.footer-desc{margin-top:18px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.6);max-width:380px}
.footer-col h4{font-size:16px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{color:rgba(255,255,255,.6);font-size:14px;transition:color .2s}
.footer-col a:hover{color:var(--primary-light)}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;padding-top:32px}
.footer-bottom span{font-size:13px;color:rgba(255,255,255,.45)}
.footer-links{display:flex;gap:18px}
.footer-links a{font-size:13px;color:rgba(255,255,255,.45)}
.footer-links a:hover{color:var(--primary-light)}
@media(max-width:768px){
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
/* Utility */
.divider{height:1px;background:var(--border-soft);border:none;margin:0}
.text-grad{background:linear-gradient(90deg,var(--primary),var(--primary-light));-webkit-background-clip:text;background-clip:text;color:transparent}
@media(max-width:520px){
  .section-title{font-size:23px}
  .brand-text{font-size:17px}
  .brand-icon{width:38px;height:38px}
}
.focus-ring:focus-visible{outline:3px solid rgba(16,185,129,.4);outline-offset:2px;border-radius:6px}

/* roulang page: article */
:root {
  --primary: #0B6E4F;
  --primary-light: #10B981;
  --primary-dark: #08523B;
  --accent: #F97316;
  --accent-dark: #EA6A0B;
  --ink: #1F2937;
  --soft: #6B7280;
  --warm: #FAF9F7;
  --card-radius: 18px;
  --shadow-sm: 0 2px 10px rgba(0,0,0,0.05);
  --shadow-md: 0 6px 24px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.10);
  --transition: all 0.3s ease;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink);
  background: var(--warm);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font-family: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
@media (max-width: 768px) {
  .container { padding: 0 20px; }
}

/* ===== Nav ===== */
.nav-wrapper {
  position: fixed;
  top: 16px;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0 24px;
}
.nav-capsule {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 28px;
  background: rgba(255,255,255,0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(11,110,79,0.12);
  border-radius: 100px;
  padding: 10px 20px 10px 24px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.brand-icon {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff;
  font-size: 18px;
  font-weight: 800;
  border-radius: 12px;
}
.brand-text {
  font-size: 18px;
  font-weight: 800;
  color: var(--ink);
  line-height: 1.2;
  white-space: nowrap;
}
.brand-sub {
  display: block;
  font-size: 11px;
  font-weight: 500;
  color: var(--soft);
  letter-spacing: 0.04em;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
  justify-content: center;
}
.nav-links a {
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 500;
  color: var(--soft);
  transition: var(--transition);
}
.nav-links a:hover {
  color: var(--primary);
  background: rgba(11,110,79,0.08);
}
.nav-links a.active {
  color: var(--primary);
  background: rgba(11,110,79,0.12);
  font-weight: 600;
}
.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--accent);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  padding: 10px 20px;
  border-radius: 999px;
  transition: var(--transition);
  white-space: nowrap;
}
.nav-cta:hover {
  background: var(--accent-dark);
  box-shadow: 0 4px 16px rgba(249,115,22,0.35);
  transform: translateY(-1px);
}
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--ink);
  padding: 8px;
}
.nav-toggle:focus { outline: 2px solid var(--accent); border-radius: 6px; }
@media (max-width: 900px) {
  .nav-capsule { flex-wrap: wrap; border-radius: 20px; }
  .nav-links {
    display: none;
    flex-basis: 100%;
    flex-direction: column;
    align-items: flex-start;
    padding: 12px 8px;
    gap: 4px;
    border-top: 1px solid rgba(0,0,0,0.05);
  }
  .nav-links.open { display: flex; }
  .nav-links a { width: 100%; border-radius: 10px; }
  .nav-cta { display: none; }
  .nav-toggle { display: block; }
}

/* ===== Article Banner ===== */
.article-banner {
  background: linear-gradient(135deg, rgba(11,110,79,0.06), rgba(16,185,129,0.04)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  padding: 112px 0 40px;
  border-bottom: 1px solid rgba(11,110,79,0.08);
}
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--soft);
  flex-wrap: wrap;
}
.breadcrumb a {
  color: var(--primary);
  font-weight: 500;
  transition: var(--transition);
}
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb .sep { color: rgba(0,0,0,0.25); }
.breadcrumb .current {
  color: var(--ink);
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 320px;
}

/* ===== Article Main ===== */
.article-main {
  padding: 56px 0 72px;
}
.article-container {
  max-width: 860px;
}
.article-card {
  background: #fff;
  border-radius: 20px;
  border: 1px solid rgba(0,0,0,0.06);
  box-shadow: var(--shadow-md);
  padding: 48px 56px;
}
@media (max-width: 768px) {
  .article-card { padding: 28px 24px; border-radius: 16px; }
}
.article-header {
  text-align: center;
  padding-bottom: 32px;
  border-bottom: 1px solid rgba(0,0,0,0.06);
  margin-bottom: 36px;
}
.article-header h1 {
  font-size: 44px;
  line-height: 1.25;
  font-weight: 800;
  color: var(--ink);
  margin-bottom: 20px;
  letter-spacing: -0.01em;
}
@media (max-width: 768px) {
  .article-header h1 { font-size: 30px; }
}
.article-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
  font-size: 14px;
  color: var(--soft);
}
.article-meta span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.article-meta i { color: var(--primary-light); }
.article-summary {
  background: linear-gradient(135deg, rgba(11,110,79,0.06), rgba(16,185,129,0.04));
  border-left: 4px solid var(--primary);
  border-radius: 8px 16px 16px 8px;
  padding: 20px 24px;
  font-size: 15px;
  line-height: 1.9;
  color: var(--ink);
  margin-bottom: 36px;
}

/* ===== Article Body ===== */
.article-body {
  font-size: 16px;
  line-height: 1.9;
  color: var(--ink);
}
.article-body p {
  margin-bottom: 1.6em;
  text-align: justify;
}
.article-body h2 {
  font-size: 26px;
  font-weight: 700;
  color: var(--ink);
  margin: 2em 0 0.8em;
  padding-left: 16px;
  border-left: 4px solid var(--primary);
  line-height: 1.4;
}
.article-body h3 {
  font-size: 21px;
  font-weight: 600;
  color: var(--ink);
  margin: 1.6em 0 0.6em;
  line-height: 1.4;
}
.article-body ul,
.article-body ol {
  margin: 0 0 1.6em 1.5em;
  line-height: 1.9;
}
.article-body li { margin-bottom: 0.4em; }
.article-body blockquote {
  border-left: 4px solid var(--primary-light);
  background: rgba(11,110,79,0.04);
  padding: 16px 24px;
  border-radius: 0 12px 12px 0;
  margin: 1.6em 0;
  color: var(--soft);
  font-style: italic;
}
.article-body img {
  border-radius: 12px;
  box-shadow: var(--shadow-sm);
  margin: 1.8em auto;
  max-width: 100%;
}
.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.6em 0;
  font-size: 15px;
}
.article-body table th,
.article-body table td {
  border: 1px solid rgba(0,0,0,0.08);
  padding: 12px 16px;
  text-align: left;
}
.article-body table th {
  background: rgba(11,110,79,0.06);
  font-weight: 600;
  color: var(--primary-dark);
}
.article-body table tr:nth-child(even) {
  background: rgba(0,0,0,0.02);
}
.article-body a {
  color: var(--primary);
  border-bottom: 1px solid rgba(11,110,79,0.3);
  transition: var(--transition);
}
.article-body a:hover { color: var(--accent); border-bottom-color: var(--accent); }

/* Not found */
.not-found {
  text-align: center;
  padding: 72px 24px;
}
.not-found i {
  font-size: 56px;
  color: rgba(11,110,79,0.2);
  margin-bottom: 20px;
}
.not-found p { font-size: 18px; color: var(--soft); margin-bottom: 16px; }
.not-found a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--primary);
  color: #fff;
  padding: 12px 28px;
  border-radius: 999px;
  font-weight: 600;
  transition: var(--transition);
}
.not-found a:hover { background: var(--primary-dark); transform: translateY(-1px); }

/* ===== Tags ===== */
.article-tags {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 40px;
  padding-top: 28px;
  border-top: 1px solid rgba(0,0,0,0.06);
}
.article-tags span { font-size: 14px; color: var(--soft); font-weight: 500; }
.article-tags a {
  display: inline-block;
  background: rgba(11,110,79,0.08);
  color: var(--primary);
  font-size: 13px;
  font-weight: 500;
  padding: 6px 16px;
  border-radius: 999px;
  transition: var(--transition);
}
.article-tags a:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-1px);
}

/* ===== Prev / Next ===== */
.article-prevnext {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 32px;
}
@media (max-width: 768px) {
  .article-prevnext { grid-template-columns: 1fr; }
}
.pn-item {
  background: var(--warm);
  border: 1px solid rgba(0,0,0,0.06);
  border-radius: 14px;
  padding: 18px 22px;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.pn-item:hover {
  background: #fff;
  border-color: rgba(11,110,79,0.25);
  box-shadow: var(--shadow-sm);
  transform: translateY(-2px);
}
.pn-label { font-size: 12px; color: var(--soft); font-weight: 500; }
.pn-title { font-size: 15px; font-weight: 600; color: var(--ink); line-height: 1.5; }

/* ===== Related ===== */
.related-section {
  margin-top: 56px;
}
.related-section h2 {
  font-size: 24px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.related-section h2::after {
  content: '';
  flex: 1;
  height: 1px;
  background: linear-gradient(to right, rgba(11,110,79,0.2), transparent);
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 24px;
}
@media (max-width: 900px) {
  .related-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 520px) {
  .related-grid { grid-template-columns: 1fr; }
}
.related-card {
  background: #fff;
  border-radius: 16px;
  border: 1px solid rgba(0,0,0,0.06);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.related-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: rgba(11,110,79,0.2);
}
.related-card img {
  width: 100%;
  height: 140px;
  object-fit: cover;
  background: linear-gradient(135deg, #e8f5ef, #f0faf6);
}
.related-card-body {
  padding: 18px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.related-card-body h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.4;
  transition: var(--transition);
}
.related-card:hover .related-card-body h3 { color: var(--primary); }
.related-card-body p {
  font-size: 13px;
  color: var(--soft);
  line-height: 1.6;
  flex: 1;
}
.related-card-body .rc-meta {
  font-size: 12px;
  color: #9CA3AF;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* ===== CTA ===== */
.article-cta {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  border-radius: 24px;
  max-width: 1200px;
  margin: 0 auto 72px;
  padding: 64px 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.article-cta::before {
  content: '';
  position: absolute;
  top: -60px;
  right: -40px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: rgba(255,255,255,0.06);
}
.article-cta::after {
  content: '';
  position: absolute;
  bottom: -80px;
  left: -40px;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: rgba(255,255,255,0.04);
}
.article-cta h2 {
  font-size: 34px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 12px;
  position: relative;
  z-index: 1;
}
@media (max-width: 768px) {
  .article-cta { padding: 40px 24px; }
  .article-cta h2 { font-size: 24px; }
}
.article-cta p {
  color: rgba(255,255,255,0.8);
  font-size: 16px;
  margin-bottom: 32px;
  position: relative;
  z-index: 1;
}
.cta-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}
.cta-buttons .btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  padding: 16px 36px;
  border-radius: 999px;
  transition: var(--transition);
  box-shadow: 0 4px 20px rgba(249,115,22,0.3);
}
.cta-buttons .btn-primary:hover {
  background: var(--accent-dark);
  box-shadow: 0 6px 28px rgba(249,115,22,0.4);
  transform: translateY(-2px);
}
.cta-buttons .btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  border: 2px solid rgba(255,255,255,0.5);
  color: #fff;
  font-size: 16px;
  font-weight: 500;
  padding: 14px 32px;
  border-radius: 999px;
  transition: var(--transition);
}
.cta-buttons .btn-secondary:hover {
  background: rgba(255,255,255,0.15);
  border-color: #fff;
  transform: translateY(-2px);
}

/* ===== Footer ===== */
.site-footer {
  background: #0A2E22;
  color: rgba(255,255,255,0.7);
  padding: 64px 0 0;
  margin-top: 0;
}
.site-footer h3, .site-footer h4 { color: #fff; }
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
@media (max-width: 768px) {
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
}
.footer-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}
.logo-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary-light), var(--primary));
  color: #fff;
  font-size: 18px;
  font-weight: 800;
  border-radius: 12px;
}
.footer-logo h3 { font-size: 18px; font-weight: 700; }
.footer-desc {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255,255,255,0.6);
  max-width: 360px;
}
.footer-col h4 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 16px;
  position: relative;
  padding-bottom: 8px;
}
.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 24px;
  height: 2px;
  background: var(--primary-light);
  border-radius: 2px;
}
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 10px; }
.footer-col a {
  font-size: 14px;
  color: rgba(255,255,255,0.65);
  transition: var(--transition);
}
.footer-col a:hover {
  color: var(--primary-light);
  padding-left: 4px;
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 0;
  font-size: 13px;
  flex-wrap: wrap;
  gap: 12px;
  color: rgba(255,255,255,0.4);
}
.footer-links a {
  color: rgba(255,255,255,0.4);
  transition: var(--transition);
}
.footer-links a:hover { color: var(--primary-light); }

/* roulang page: category3 */
:root {
    --primary: #0B6E4F;
    --primary-light: #10B981;
    --primary-dark: #085940;
    --accent: #F97316;
    --accent-dark: #EA580C;
    --bg: #FAF9F7;
    --text: #1F2937;
    --text-secondary: #6B7280;
    --border: rgba(0, 0, 0, 0.08);
    --radius: 16px;
    --radius-lg: 20px;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.10);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --container: 1200px;
  }
  *,
  *::before,
  *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
  }
  html {
    scroll-behavior: smooth;
  }
  body {
    font-family: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background: var(--bg);
    color: var(--text);
    font-size: 16px;
    line-height: 1.8;
    -webkit-font-smoothing: antialiased;
  }
  img {
    max-width: 100%;
    display: block;
  }
  a {
    color: inherit;
    text-decoration: none;
  }
  button {
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
  }
  .container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 24px;
  }
  @media (max-width: 768px) {
    .container {
      padding: 0 20px;
    }
  }

  /* == NAV == */
  .nav-wrapper {
    position: fixed;
    top: 12px;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 0 20px;
  }
  .nav-capsule {
    max-width: 1160px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(0, 0, 0, 0.06);
    border-radius: 999px;
    padding: 10px 20px 10px 24px;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
    transition: var(--transition);
  }
  .brand {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
  }
  .brand-icon {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: #fff;
    font-size: 18px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(11, 110, 79, 0.25);
  }
  .brand-text {
    font-size: 18px;
    font-weight: 700;
    color: var(--text);
    line-height: 1.2;
    letter-spacing: 0.01em;
  }
  .brand-sub {
    display: block;
    font-size: 11px;
    font-weight: 500;
    color: var(--text-secondary);
    letter-spacing: 0.08em;
    margin-top: 2px;
  }
  .nav-links {
    display: flex;
    align-items: center;
    gap: 4px;
    margin: 0 16px;
  }
  .nav-links a {
    padding: 8px 16px;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition);
    position: relative;
    white-space: nowrap;
  }
  .nav-links a:hover {
    color: var(--primary);
    background: rgba(11, 110, 79, 0.06);
  }
  .nav-links a.active {
    color: var(--primary);
    background: rgba(11, 110, 79, 0.10);
    font-weight: 600;
  }
  .nav-cta {
    padding: 10px 24px;
    background: var(--accent);
    color: #fff;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 600;
    transition: var(--transition);
    white-space: nowrap;
    box-shadow: 0 4px 14px rgba(249, 115, 22, 0.30);
  }
  .nav-cta:hover {
    background: var(--accent-dark);
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(249, 115, 22, 0.38);
  }
  .nav-toggle {
    display: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    align-items: center;
    justify-content: center;
    color: var(--text);
    transition: var(--transition);
  }
  .nav-toggle:hover {
    background: rgba(0, 0, 0, 0.04);
  }
  @media (max-width: 768px) {
    .nav-links {
      display: none;
      position: absolute;
      top: calc(100% + 12px);
      left: 0;
      right: 0;
      flex-direction: column;
      background: rgba(255, 255, 255, 0.97);
      backdrop-filter: blur(16px);
      border-radius: 20px;
      padding: 16px;
      box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
      gap: 4px;
      margin: 0;
      border: 1px solid rgba(0, 0, 0, 0.06);
    }
    .nav-links.open {
      display: flex;
    }
    .nav-links a {
      display: block;
      padding: 12px 16px;
      width: 100%;
      text-align: center;
      border-radius: 12px;
    }
    .nav-cta {
      display: none;
    }
    .nav-toggle {
      display: flex;
    }
  }

  /* == HERO == */
  .hero {
    position: relative;
    padding: 160px 0 80px;
    background:
      linear-gradient(135deg, rgba(11, 110, 79, 0.03) 0%, rgba(16, 185, 129, 0.06) 50%, rgba(249, 115, 22, 0.02) 100%),
      url('/assets/images/backpic/back-1.png') center/cover no-repeat;
    overflow: hidden;
  }
  .hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, rgba(250, 249, 247, 0.92) 0%, rgba(250, 249, 247, 0.70) 60%, rgba(250, 249, 247, 0.30) 100%);
    pointer-events: none;
  }
  .hero-inner {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 48px;
    align-items: center;
  }
  .hero-badge {
    display: inline-block;
    background: rgba(11, 110, 79, 0.10);
    color: var(--primary);
    font-size: 13px;
    font-weight: 600;
    padding: 6px 16px;
    border-radius: 999px;
    margin-bottom: 20px;
    letter-spacing: 0.04em;
  }
  .hero h1 {
    font-size: 46px;
    font-weight: 700;
    line-height: 1.2;
    color: var(--text);
    margin-bottom: 18px;
    letter-spacing: -0.01em;
  }
  .hero-desc {
    font-size: 18px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 30px;
    max-width: 520px;
  }
  .hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 28px;
  }
  .btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 34px;
    background: var(--accent);
    color: #fff;
    border-radius: 999px;
    font-size: 15px;
    font-weight: 600;
    transition: var(--transition);
    box-shadow: 0 6px 20px rgba(249, 115, 22, 0.28);
    border: 2px solid transparent;
  }
  .btn-primary:hover {
    background: var(--accent-dark);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(249, 115, 22, 0.35);
  }
  .btn-primary:focus-visible {
    outline: 3px solid rgba(249, 115, 22, 0.4);
    outline-offset: 2px;
  }
  .btn-outline {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 30px;
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
    border-radius: 999px;
    font-size: 15px;
    font-weight: 600;
    transition: var(--transition);
  }
  .btn-outline:hover {
    background: rgba(11, 110, 79, 0.06);
    transform: translateY(-2px);
  }
  .btn-outline:focus-visible {
    outline: 3px solid rgba(11, 110, 79, 0.3);
    outline-offset: 2px;
  }
  .btn-outline-light {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 30px;
    background: transparent;
    color: #fff;
    border: 2px solid rgba(255, 255, 255, 0.7);
    border-radius: 999px;
    font-size: 15px;
    font-weight: 600;
    transition: var(--transition);
  }
  .btn-outline-light:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: #fff;
    transform: translateY(-2px);
  }
  .hero-tags {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
  }
  .hero-tags span {
    font-size: 13px;
    color: var(--text-secondary);
    background: rgba(255, 255, 255, 0.8);
    border: 1px solid rgba(0, 0, 0, 0.06);
    padding: 4px 14px;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
  }
  .hero-tags span::before {
    content: '';
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--primary-light);
    display: inline-block;
  }
  .hero-img-wrap {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    position: relative;
    aspect-ratio: 4 / 3;
  }
  .hero-img-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }
  .hero-img-wrap::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.6);
    pointer-events: none;
  }
  @media (max-width: 768px) {
    .hero {
      padding: 120px 0 56px;
    }
    .hero-inner {
      grid-template-columns: 1fr;
      gap: 28px;
    }
    .hero h1 {
      font-size: 32px;
    }
    .hero-desc {
      font-size: 16px;
    }
  }

  /* == STEPS == */
  .steps-section {
    padding: 80px 0;
  }
  .section-head {
    text-align: center;
    margin-bottom: 48px;
  }
  .section-head h2 {
    font-size: 32px;
    font-weight: 700;
    line-height: 1.25;
    color: var(--text);
    margin-bottom: 12px;
  }
  .section-head p {
    font-size: 16px;
    color: var(--text-secondary);
    max-width: 560px;
    margin: 0 auto;
    line-height: 1.8;
  }
  .steps-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    max-width: 980px;
    margin: 0 auto;
  }
  .step-card {
    background: #fff;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    padding: 36px 32px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
  }
  .step-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(11, 110, 79, 0.20);
  }
  .step-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--primary-light));
    opacity: 0;
    transition: var(--transition);
  }
  .step-card:hover::before {
    opacity: 1;
  }
  .step-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    border-radius: 16px;
    background: rgba(11, 110, 79, 0.08);
    color: var(--primary);
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 20px;
    letter-spacing: -0.02em;
  }
  .step-card h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 10px;
    line-height: 1.3;
  }
  .step-card p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.8;
  }
  @media (max-width: 768px) {
    .steps-grid {
      grid-template-columns: 1fr;
    }
    .steps-section {
      padding: 56px 0;
    }
    .section-head h2 {
      font-size: 26px;
    }
  }

  /* == DOWNLOAD STRIP == */
  .download-strip {
    position: relative;
    padding: 64px 0;
    background:
      linear-gradient(120deg, rgba(11, 110, 79, 0.92) 0%, rgba(8, 89, 64, 0.96) 100%),
      url('/assets/images/backpic/back-2.png') center/cover no-repeat;
    border-radius: 0;
  }
  .download-strip-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
    flex-wrap: wrap;
  }
  .download-strip h2 {
    color: #fff;
    font-size: 28px;
    font-weight: 700;
    line-height: 1.3;
    max-width: 560px;
  }
  .download-strip .btn-group {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
  }
  @media (max-width: 768px) {
    .download-strip {
      padding: 48px 0;
    }
    .download-strip h2 {
      font-size: 22px;
    }
    .download-strip-inner {
      justify-content: center;
      text-align: center;
    }
    .download-strip .btn-group {
      justify-content: center;
      width: 100%;
    }
  }

  /* == FEATURE CARDS == */
  .feature-section {
    padding: 80px 0;
    background: #fff;
  }
  .feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }
  .feature-card {
    background: var(--bg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    overflow: hidden;
    transition: var(--transition);
  }
  .feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(11, 110, 79, 0.15);
  }
  .feature-card-img {
    aspect-ratio: 4 / 3;
    overflow: hidden;
  }
  .feature-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  }
  .feature-card:hover .feature-card-img img {
    transform: scale(1.04);
  }
  .feature-card-body {
    padding: 28px;
  }
  .feature-card-body h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 8px;
    line-height: 1.3;
  }
  .feature-card-body p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.75;
  }
  @media (max-width: 1024px) {
    .feature-grid {
      grid-template-columns: 1fr 1fr;
    }
  }
  @media (max-width: 768px) {
    .feature-grid {
      grid-template-columns: 1fr;
    }
    .feature-section {
      padding: 56px 0;
    }
  }

  /* == FAQ == */
  .faq-section {
    padding: 80px 0;
    background: var(--bg);
  }
  .faq-list {
    max-width: 860px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
  }
  .faq-item {
    background: #fff;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: var(--transition);
  }
  .faq-item.open {
    border-color: rgba(11, 110, 79, 0.25);
    box-shadow: var(--shadow-lg);
  }
  .faq-q {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    font-size: 16px;
    font-weight: 600;
    color: var(--text);
    cursor: pointer;
    gap: 16px;
    transition: var(--transition);
  }
  .faq-q:hover {
    color: var(--primary);
  }
  .faq-icon {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: rgba(11, 110, 79, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    position: relative;
    transition: var(--transition);
  }
  .faq-icon::before,
  .faq-icon::after {
    content: '';
    position: absolute;
    background: var(--primary);
    border-radius: 2px;
    transition: var(--transition);
  }
  .faq-icon::before {
    width: 10px;
    height: 2px;
  }
  .faq-icon::after {
    width: 2px;
    height: 10px;
  }
  .faq-item.open .faq-icon::after {
    transform: rotate(90deg);
    opacity: 0;
  }
  .faq-a {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  }
  .faq-a-inner {
    padding: 0 24px 24px;
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.8;
    border-top: 1px solid rgba(0, 0, 0, 0.04);
    padding-top: 16px;
  }
  @media (max-width: 768px) {
    .faq-section {
      padding: 56px 0;
    }
    .faq-q {
      font-size: 15px;
      padding: 18px 20px;
    }
    .faq-a-inner {
      padding: 0 20px 20px;
      padding-top: 14px;
      font-size: 14px;
    }
  }

  /* == CTA == */
  .cta-section {
    padding: 64px 0;
    background: linear-gradient(135deg, #f97316 0%, #ea580c 100%);
    position: relative;
    overflow: hidden;
  }
  .cta-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.08);
  }
  .cta-inner {
    position: relative;
    text-align: center;
    max-width: 640px;
    margin: 0 auto;
  }
  .cta-inner h2 {
    color: #fff;
    font-size: 30px;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 12px;
  }
  .cta-inner p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 16px;
    margin-bottom: 28px;
    line-height: 1.8;
  }
  .cta-inner .btn-group {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
  }
  .cta-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 34px;
    background: #fff;
    color: var(--accent-dark);
    border-radius: 999px;
    font-size: 15px;
    font-weight: 700;
    transition: var(--transition);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
  }
  .cta-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  }
  .cta-btn-outline {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 30px;
    background: transparent;
    color: #fff;
    border: 2px solid rgba(255, 255, 255, 0.7);
    border-radius: 999px;
    font-size: 15px;
    font-weight: 600;
    transition: var(--transition);
  }
  .cta-btn-outline:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: #fff;
    transform: translateY(-2px);
  }
  @media (max-width: 768px) {
    .cta-section {
      padding: 48px 0;
    }
    .cta-inner h2 {
      font-size: 24px;
    }
    .cta-inner .btn-group {
      flex-direction: column;
      align-items: center;
    }
    .cta-btn,
    .cta-btn-outline {
      width: 100%;
      max-width: 260px;
    }
  }

  /* == FOOTER == */
  .site-footer {
    background: #0a1f18;
    color: rgba(255, 255, 255, 0.75);
    padding: 64px 0 32px;
  }
  .footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }
  .footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
  }
  .logo-icon {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 100%);
    color: #fff;
    font-size: 18px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .footer-logo h3 {
    color: #fff;
    font-size: 18px;
    font-weight: 600;
    line-height: 1.3;
  }
  .footer-desc {
    font-size: 14px;
    line-height: 1.75;
    color: rgba(255, 255, 255, 0.6);
    max-width: 360px;
  }
  .footer-col h4 {
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 20px;
  }
  .footer-col ul {
    list-style: none;
    padding: 0;
  }
  .footer-col ul li {
    margin-bottom: 12px;
  }
  .footer-col ul li a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.65);
    transition: var(--transition);
    position: relative;
  }
  .footer-col ul li a:hover {
    color: var(--primary-light);
    padding-left: 4px;
  }
  .footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    padding-top: 24px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.45);
  }
  .footer-links a {
    color: rgba(255, 255, 255, 0.55);
    transition: var(--transition);
    margin-left: 16px;
  }
  .footer-links a:hover {
    color: var(--primary-light);
  }
  @media (max-width: 768px) {
    .footer-grid {
      grid-template-columns: 1fr;
      gap: 32px;
      padding-bottom: 32px;
    }
    .footer-bottom {
      flex-direction: column;
      text-align: center;
    }
    .footer-links {
      display: flex;
      gap: 12px;
    }
    .footer-links a {
      margin-left: 0;
    }
  }

  /* == Back to Top == */
  .back-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 6px 20px rgba(11, 110, 79, 0.3);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--transition);
    z-index: 90;
  }
  .back-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }
  .back-top:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
  }
  @media (max-width: 768px) {
    .back-top {
      bottom: 24px;
      right: 24px;
    }
  }

/* roulang page: category2 */
:root {
            --primary: #0B6E4F;
            --primary-light: #10B981;
            --accent: #F97316;
            --bg: #FAF9F7;
            --ink: #1F2937;
            --muted: #6B7280;
            --border: rgba(0, 0, 0, 0.08);
            --radius: 18px;
            --shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 14px 40px rgba(0, 0, 0, 0.12);
            --transition: all 0.3s ease;
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            font-size: 16px;
            line-height: 1.75;
            background: var(--bg);
            color: var(--ink);
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        img {
            max-width: 100%;
            display: block;
        }
        button {
            font-family: inherit;
        }
        ul,
        ol {
            list-style: none;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== 悬浮胶囊导航 ===== */
        .nav-wrapper {
            position: fixed;
            top: 12px;
            left: 0;
            right: 0;
            z-index: 50;
            padding: 0 20px;
        }
        .nav-capsule {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            gap: 16px;
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid rgba(0, 0, 0, 0.06);
            border-radius: 999px;
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.06);
            padding: 10px 16px 10px 20px;
        }
        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 12px;
            background: var(--primary);
            color: #fff;
            font-weight: 700;
            font-size: 18px;
        }
        .brand-text {
            font-weight: 700;
            font-size: 18px;
            color: var(--ink);
            line-height: 1.2;
            white-space: nowrap;
        }
        .brand-sub {
            display: block;
            font-size: 12px;
            font-weight: 500;
            color: var(--muted);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            margin-left: auto;
        }
        .nav-links a {
            padding: 8px 14px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 500;
            color: var(--ink);
            transition: var(--transition);
        }
        .nav-links a:hover {
            background: rgba(11, 110, 79, 0.08);
            color: var(--primary);
        }
        .nav-links a.active {
            background: rgba(11, 110, 79, 0.12);
            color: var(--primary);
            font-weight: 600;
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 40px;
            padding: 0 20px;
            border-radius: 999px;
            background: var(--accent);
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            transition: var(--transition);
            white-space: nowrap;
        }
        .nav-cta:hover {
            background: #ea580c;
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(249, 115, 22, 0.35);
        }
        .nav-cta:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(249, 115, 22, 0.3);
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--ink);
            cursor: pointer;
            padding: 8px;
            border-radius: 8px;
            transition: var(--transition);
        }
        .nav-toggle:hover {
            background: rgba(0, 0, 0, 0.05);
        }

        /* ===== 分类页 Hero ===== */
        .cat-hero {
            position: relative;
            padding: 160px 0 72px;
            background:
                linear-gradient(135deg, rgba(11, 110, 79, 0.12), rgba(250, 249, 247, 0.88)),
                url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            border-bottom: 1px solid var(--border);
        }
        .cat-hero-inner {
            display: flex;
            flex-direction: column;
            gap: 18px;
            max-width: 860px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            width: fit-content;
            padding: 6px 14px;
            border-radius: 999px;
            background: rgba(11, 110, 79, 0.1);
            color: var(--primary);
            font-size: 14px;
            font-weight: 600;
        }
        .cat-hero h1 {
            font-size: 42px;
            line-height: 1.2;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--ink);
        }
        .cat-hero p {
            font-size: 18px;
            color: var(--muted);
            max-width: 720px;
        }

        /* ===== 通用 section ===== */
        .section {
            padding: 72px 0;
        }
        .section-head {
            margin-bottom: 40px;
        }
        .section-head .kicker {
            color: var(--primary);
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
        }
        .section-head h2 {
            font-size: 30px;
            font-weight: 800;
            color: var(--ink);
            margin-top: 8px;
            line-height: 1.3;
        }
        .section-head p {
            color: var(--muted);
            margin-top: 10px;
            font-size: 16px;
            max-width: 640px;
        }

        /* ===== 封面卡片网格 ===== */
        .guide-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }
        .guide-card {
            background: #fff;
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: var(--transition);
        }
        .guide-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(11, 110, 79, 0.3);
        }
        .guide-card:active {
            transform: translateY(-1px);
        }
        .guide-card-cover {
            position: relative;
            aspect-ratio: 16/10;
            overflow: hidden;
            background: linear-gradient(135deg, rgba(11, 110, 79, 0.1), rgba(16, 185, 129, 0.05));
        }
        .guide-card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .guide-card:hover .guide-card-cover img {
            transform: scale(1.04);
        }
        .guide-card-body {
            padding: 24px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            flex: 1;
        }
        .guide-card-body h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--ink);
            line-height: 1.35;
        }
        .guide-card-body p {
            font-size: 15px;
            color: var(--muted);
            line-height: 1.7;
        }
        .guide-card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: auto;
            padding-top: 14px;
            color: var(--primary);
            font-weight: 600;
            font-size: 15px;
            border-top: 1px solid var(--border);
        }
        .guide-card-link .arrow {
            transition: transform 0.3s ease;
        }
        .guide-card-link:hover {
            color: var(--accent);
        }
        .guide-card-link:hover .arrow {
            transform: translateX(4px);
        }

        /* ===== 快速索引 ===== */
        .quick-index {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 32px;
        }
        .quick-index h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 18px;
        }
        .quick-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .quick-tags a {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: 999px;
            background: rgba(11, 110, 79, 0.08);
            color: var(--primary);
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition);
        }
        .quick-tags a:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-1px);
        }
        .quick-tags a:active {
            transform: translateY(0);
        }

        /* ===== 步骤时间线 ===== */
        .steps-list {
            max-width: 720px;
        }
        .step-item {
            display: flex;
            gap: 20px;
            padding: 24px 0;
            border-bottom: 1px solid var(--border);
        }
        .step-item:last-child {
            border-bottom: none;
        }
        .step-num {
            width: 44px;
            height: 44px;
            flex-shrink: 0;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 18px;
        }
        .step-content h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .step-content p {
            color: var(--muted);
            font-size: 15px;
            line-height: 1.7;
        }

        /* ===== FAQ 手风琴 ===== */
        .faq-list {
            max-width: 800px;
        }
        .faq-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 16px;
            margin-bottom: 14px;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(11, 110, 79, 0.25);
        }
        .faq-item.open {
            border-color: rgba(11, 110, 79, 0.4);
        }
        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            padding: 18px 22px;
            cursor: pointer;
            font-size: 17px;
            font-weight: 600;
            color: var(--ink);
            background: none;
            border: none;
            text-align: left;
            width: 100%;
            transition: var(--transition);
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 1.5px solid currentColor;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            line-height: 1;
            transition: transform 0.3s ease;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            color: var(--primary);
            border-color: var(--primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
        }
        .faq-answer-inner {
            padding: 0 22px 20px;
            color: var(--muted);
            font-size: 15px;
            line-height: 1.8;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
        }

        /* ===== CTA 横幅 ===== */
        .cta-banner {
            position: relative;
            border-radius: 24px;
            background: var(--primary);
            padding: 56px 48px;
            overflow: hidden;
            color: #fff;
        }
        .cta-banner::before {
            content: "";
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.18;
        }
        .cta-inner {
            position: relative;
            z-index: 1;
        }
        .cta-banner h2 {
            font-size: 32px;
            font-weight: 800;
            line-height: 1.3;
        }
        .cta-banner p {
            font-size: 17px;
            opacity: 0.9;
            margin-top: 10px;
            max-width: 560px;
        }
        .cta-actions {
            display: flex;
            gap: 14px;
            margin-top: 28px;
            flex-wrap: wrap;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 48px;
            padding: 0 28px;
            border-radius: 999px;
            background: var(--accent);
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            transition: var(--transition);
            border: none;
            cursor: pointer;
        }
        .btn-primary:hover {
            background: #ea580c;
            box-shadow: 0 8px 20px rgba(249, 115, 22, 0.4);
            transform: translateY(-2px);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 4px 12px rgba(249, 115, 22, 0.3);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 48px;
            padding: 0 28px;
            border-radius: 999px;
            background: transparent;
            border: 2px solid rgba(255, 255, 255, 0.8);
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            transition: var(--transition);
            cursor: pointer;
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.15);
            border-color: #fff;
        }
        .btn-outline:active {
            background: rgba(255, 255, 255, 0.25);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #0a3b2f;
            color: rgba(255, 255, 255, 0.8);
            padding: 64px 0 0;
            margin-top: 72px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 48px;
        }
        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .footer-logo .logo-icon {
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: var(--primary-light);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 20px;
        }
        .footer-logo h3 {
            font-size: 20px;
            color: #fff;
            font-weight: 700;
        }
        .footer-desc {
            font-size: 15px;
            line-height: 1.8;
            margin-top: 18px;
            max-width: 380px;
            color: rgba(255, 255, 255, 0.7);
        }
        .footer-col h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul a {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.7);
            transition: var(--transition);
        }
        .footer-col ul a:hover {
            color: var(--primary-light);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 20px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-links a {
            color: rgba(255, 255, 255, 0.5);
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--primary-light);
        }

        /* ===== 焦点状态 ===== */
        a:focus-visible,
        button:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 2px;
            border-radius: 8px;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .guide-grid {
                grid-template-columns: 1fr 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }
        @media (max-width: 768px) {
            .nav-wrapper {
                top: 0;
                padding: 10px 14px;
            }
            .nav-capsule {
                border-radius: 20px;
                flex-wrap: wrap;
                padding: 10px 14px;
            }
            .nav-links {
                display: none;
                flex-direction: column;
                align-items: flex-start;
                width: 100%;
                order: 3;
                padding: 10px 0 4px;
                gap: 4px;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links a {
                display: block;
                width: 100%;
                border-radius: 10px;
                padding: 10px 14px;
            }
            .nav-toggle {
                display: inline-flex;
                margin-left: auto;
            }
            .nav-cta {
                display: none;
            }
            .cat-hero {
                padding: 130px 0 48px;
            }
            .cat-hero h1 {
                font-size: 32px;
            }
            .cat-hero p {
                font-size: 16px;
            }
            .section {
                padding: 48px 0;
            }
            .guide-grid {
                grid-template-columns: 1fr;
            }
            .cta-banner {
                padding: 40px 24px;
            }
            .cta-banner h2 {
                font-size: 26px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .brand-sub {
                display: none;
            }
            .brand-text {
                font-size: 16px;
            }
            .section-head h2 {
                font-size: 26px;
            }
            .faq-question {
                font-size: 16px;
                padding: 16px 18px;
            }
            .step-item {
                flex-direction: column;
                gap: 10px;
            }
        }