/* roulang page: index */
:root {
    --primary: #0E5048;
    --primary-light: #E5F0EC;
    --accent: #B98A4E;
    --warm-bg: #FAF9F6;
    --dark-bg: #0B1F1C;
    --text-main: #1A1A1A;
    --text-muted: #5C6B66;
    --border-light: #E8E3DA;
    --border-dark: #1E4138;
    --radius-card: 24px;
    --radius-btn: 12px;
    --shadow-sm: 0 2px 12px rgba(11,31,28,0.06);
    --shadow-xl: 0 12px 32px rgba(11,31,28,0.14);
  }

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

  html {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
  }

  body {
    font-family: 'Inter', 'PingFang SC', 'system-ui', sans-serif;
    background-color: var(--warm-bg);
    color: var(--text-main);
    line-height: 1.75;
    font-size: 16px;
    overflow-x: hidden;
  }

  a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s ease;
  }

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

  button, input {
    font-family: inherit;
  }

  .font-display {
    font-family: 'Noto Serif SC', 'Source Han Serif SC', serif;
    letter-spacing: -0.02em;
  }

  .container-site {
    max-width: 80rem;
    margin-left: auto;
    margin-right: auto;
    padding-left: 1rem;
    padding-right: 1rem;
  }

  @media (min-width: 640px) {
    .container-site {
      padding-left: 1.5rem;
      padding-right: 1.5rem;
    }
  }

  @media (min-width: 1024px) {
    .container-site {
      padding-left: 2rem;
      padding-right: 2rem;
    }
  }

  /* 导航 */
  .site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.45);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.25);
    transition: all 0.4s ease;
  }

  .site-header.scrolled {
    background: rgba(255, 255, 255, 0.96);
    box-shadow: 0 4px 20px rgba(11, 31, 28, 0.08);
    border-bottom-color: rgba(232, 227, 218, 0.8);
  }

  .site-header.scrolled .header-link {
    color: rgba(26, 26, 26, 0.85);
  }

  .site-header.scrolled .header-link:hover {
    color: var(--primary);
  }

  .site-header.scrolled .logo-text {
    color: var(--primary);
  }

  .header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 76px;
  }

  .logo-text {
    font-family: 'Noto Serif SC', 'Source Han Serif SC', serif;
    font-weight: 900;
    font-size: 1.45rem;
    color: #fff;
    letter-spacing: 0.02em;
    display: flex;
    align-items: center;
    gap: 8px;
    text-shadow: 0 2px 8px rgba(0,0,0,0.3);
    transition: color 0.3s ease, text-shadow 0.3s ease;
  }

  .header-nav {
    display: flex;
    align-items: center;
    gap: 2.25rem;
  }

  .header-link {
    font-size: 0.94rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.92);
    padding: 6px 2px;
    border-bottom: 2px solid transparent;
    transition: color 0.3s, border-color 0.3s;
    text-shadow: 0 1px 4px rgba(0,0,0,0.2);
  }

  .header-link:hover {
    color: #fff;
    border-bottom-color: var(--accent);
  }

  .header-link.active {
    color: #fff;
    border-bottom-color: var(--accent);
    font-weight: 600;
  }

  .site-header.scrolled .header-link.active {
    color: var(--primary);
    border-bottom-color: var(--accent);
  }

  .header-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--accent);
    color: #fff;
    font-size: 0.88rem;
    font-weight: 600;
    padding: 10px 20px;
    border-radius: var(--radius-btn);
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(185, 138, 78, 0.3);
    border: none;
    cursor: pointer;
  }

  .header-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(185, 138, 78, 0.35);
    color: #fff;
  }

  .header-cta:active {
    transform: translateY(0);
  }

  /* 汉堡菜单 */
  .hamburger {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 110;
  }

  .hamburger span {
    width: 26px;
    height: 2px;
    background: #fff;
    border-radius: 2px;
    transition: all 0.3s ease;
  }

  .site-header.scrolled .hamburger span {
    background: var(--text-main);
  }

  .hamburger.open span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }

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

  .hamburger.open span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }

  .mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(11, 31, 28, 0.92);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    z-index: 105;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.4s ease, visibility 0.4s ease;
  }

  .mobile-menu.open {
    opacity: 1;
    visibility: visible;
  }

  .mobile-menu a {
    font-family: 'Noto Serif SC', 'Source Han Serif SC', serif;
    font-size: 1.75rem;
    font-weight: 700;
    color: #fff;
    padding: 10px 20px;
    border-bottom: 2px solid transparent;
    transition: border-color 0.3s;
  }

  .mobile-menu a:hover,
  .mobile-menu a.active {
    border-bottom-color: var(--accent);
  }

  .mobile-menu .mobile-cta {
    background: var(--accent);
    padding: 12px 32px;
    border-radius: var(--radius-btn);
    font-size: 1.1rem;
    margin-top: 10px;
  }

  /* Hero */
  .hero {
    min-height: 92vh;
    position: relative;
    display: flex;
    align-items: center;
    background-image: url('/assets/images/backpic/back-1.webp');
    background-size: cover;
    background-position: center;
  }

  .hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(120deg, rgba(11, 31, 28, 0.88) 0%, rgba(14, 80, 72, 0.72) 55%, rgba(14, 80, 72, 0.35) 100%);
    z-index: 1;
  }

  .hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image: linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
                      linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
    background-size: 60px 60px;
    z-index: 1;
  }

  .hero-content {
    position: relative;
    z-index: 2;
    max-width: 80rem;
    width: 100%;
    margin: 0 auto;
    padding: 120px 1rem 80px;
  }

  @media (min-width: 640px) {
    .hero-content {
      padding-left: 1.5rem;
      padding-right: 1.5rem;
    }
  }

  @media (min-width: 1024px) {
    .hero-content {
      padding-left: 2rem;
      padding-right: 2rem;
    }
  }

  .hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 999px;
    padding: 8px 18px;
    color: rgba(255, 255, 255, 0.85);
    font-size: 0.8rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 28px;
    backdrop-filter: blur(8px);
  }

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

  .hero h1 {
    font-family: 'Noto Serif SC', 'Source Han Serif SC', serif;
    font-weight: 900;
    font-size: 2.5rem;
    line-height: 1.25;
    color: #fff;
    max-width: 860px;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
  }

  @media (min-width: 768px) {
    .hero h1 {
      font-size: 4rem;
      line-height: 1.2;
    }
  }

  @media (min-width: 1024px) {
    .hero h1 {
      font-size: 4.5rem;
    }
  }

  .hero-subtitle {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.85);
    max-width: 620px;
    line-height: 1.8;
    margin-bottom: 40px;
  }

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

  .btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: var(--accent);
    border: none;
    color: #fff;
    font-size: 1rem;
    font-weight: 600;
    padding: 14px 28px;
    border-radius: var(--radius-btn);
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 8px 20px rgba(185, 138, 78, 0.35);
  }

  .btn-primary:hover {
    transform: translateY(-2px);
    background: #c9a05e;
    box-shadow: 0 12px 28px rgba(185, 138, 78, 0.4);
    color: #fff;
  }

  .btn-primary:active {
    transform: translateY(0);
    box-shadow: 0 4px 12px rgba(185, 138, 78, 0.25);
  }

  .btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.5);
    color: #fff;
    font-size: 1rem;
    font-weight: 500;
    padding: 14px 28px;
    border-radius: var(--radius-btn);
    cursor: pointer;
    transition: all 0.3s ease;
    backdrop-filter: blur(8px);
  }

  .btn-secondary:hover {
    background: rgba(255, 255, 255, 0.18);
    border-color: #fff;
    color: #fff;
    transform: translateY(-2px);
  }

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

  /* 数据条 */
  .data-strip {
    background: var(--warm-bg);
    border-bottom: 1px solid var(--border-light);
    padding: 40px 0;
  }

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

  @media (min-width: 768px) {
    .data-strip-grid {
      grid-template-columns: repeat(4, 1fr);
    }
  }

  .data-item {
    text-align: left;
    padding-left: 20px;
    border-left: 2px solid var(--border-light);
  }

  .data-item .num {
    font-family: 'Noto Serif SC', serif;
    font-size: 2.2rem;
    font-weight: 900;
    color: var(--primary);
    line-height: 1.2;
  }

  .data-item .label {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 4px;
    letter-spacing: 0.03em;
  }

  .data-item .highlight {
    color: var(--accent);
  }

  /* 品牌理念区 */
  .brand-story {
    padding: 96px 0;
    background: var(--warm-bg);
    position: relative;
    overflow: hidden;
  }

  .brand-story::before {
    content: '“';
    position: absolute;
    right: 4%;
    top: 20px;
    font-family: 'Noto Serif SC', serif;
    font-size: 260px;
    line-height: 1;
    color: rgba(14, 80, 72, 0.07);
    font-weight: 900;
    z-index: 0;
    pointer-events: none;
  }

  .story-inner {
    display: grid;
    grid-template-columns: 1fr;
    gap: 56px;
    align-items: center;
    position: relative;
    z-index: 1;
  }

  @media (min-width: 1024px) {
    .story-inner {
      grid-template-columns: 1fr 1fr;
      gap: 80px;
    }
  }

  .story-left .section-tag {
    color: var(--accent);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-bottom: 16px;
    display: block;
  }

  .story-left h2 {
    font-family: 'Noto Serif SC', serif;
    font-size: 2rem;
    font-weight: 700;
    line-height: 1.3;
    color: var(--text-main);
    margin-bottom: 24px;
  }

  @media (min-width: 1024px) {
    .story-left h2 {
      font-size: 2.5rem;
    }
  }

  .story-left p {
    color: var(--text-muted);
    font-size: 1.05rem;
    line-height: 1.9;
    margin-bottom: 18px;
  }

  .story-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary);
    font-weight: 600;
    font-size: 1rem;
    margin-top: 16px;
    transition: gap 0.3s;
  }

  .story-link:hover {
    gap: 14px;
    color: var(--primary);
  }

  .story-right {
    position: relative;
  }

  .story-right .img-wrap {
    border-radius: var(--radius-card);
    overflow: hidden;
    position: relative;
    box-shadow: var(--shadow-xl);
  }

  .story-right .img-wrap img {
    width: 100%;
    height: 420px;
    object-fit: cover;
    transition: transform 0.6s ease;
  }

  .story-right .img-wrap:hover img {
    transform: scale(1.03);
  }

  .story-right .img-wrap::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(200deg, rgba(14, 80, 72, 0.1) 0%, rgba(14, 80, 72, 0.35) 100%);
  }

  .story-float-card {
    position: absolute;
    bottom: -24px;
    left: -20px;
    background: #fff;
    border-radius: 16px;
    padding: 20px 24px;
    box-shadow: var(--shadow-xl);
    display: flex;
    align-items: center;
    gap: 14px;
    z-index: 2;
  }

  .story-float-card i {
    font-size: 1.6rem;
    color: var(--accent);
  }

  .story-float-card .text {
    font-size: 0.9rem;
    color: var(--text-muted);
  }

  .story-float-card .text strong {
    display: block;
    font-size: 1.05rem;
    color: var(--text-main);
  }

  /* 精选内容 */
  .featured-section {
    padding: 96px 0;
    background: #fff;
  }

  .section-head {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-end;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 52px;
  }

  .section-head .section-tag {
    color: var(--accent);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-bottom: 10px;
    display: block;
  }

  .section-head h2 {
    font-family: 'Noto Serif SC', serif;
    font-size: 2rem;
    font-weight: 700;
    line-height: 1.3;
    color: var(--text-main);
    max-width: 500px;
  }

  @media (min-width: 1024px) {
    .section-head h2 {
      font-size: 2.4rem;
    }
  }

  .section-head .desc {
    color: var(--text-muted);
    max-width: 340px;
    font-size: 0.95rem;
    line-height: 1.7;
  }

  .featured-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 28px;
  }

  @media (min-width: 1024px) {
    .featured-grid {
      grid-template-columns: 1.3fr 1fr 1fr;
      grid-template-rows: auto;
      align-items: stretch;
    }

    .featured-grid .card-primary {
      grid-row: span 2;
    }
  }

  .feature-card {
    background: var(--warm-bg);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-card);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: all 0.4s ease;
  }

  .feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: rgba(14, 80, 72, 0.3);
  }

  .feature-card .card-img {
    position: relative;
    overflow: hidden;
    height: 220px;
  }

  .feature-card.card-primary .card-img {
    height: 300px;
  }

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

  .feature-card:hover .card-img img {
    transform: scale(1.04);
  }

  .feature-card .card-img::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(200deg, transparent 60%, rgba(11, 31, 28, 0.25));
  }

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

  .feature-card .card-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--primary-light);
    color: var(--primary);
    font-size: 0.75rem;
    font-weight: 600;
    padding: 4px 14px;
    border-radius: 999px;
    margin-bottom: 14px;
    align-self: flex-start;
    letter-spacing: 0.04em;
  }

  .feature-card .card-body h3 {
    font-family: 'Noto Serif SC', serif;
    font-size: 1.3rem;
    font-weight: 700;
    line-height: 1.4;
    color: var(--text-main);
    margin-bottom: 12px;
  }

  .feature-card.card-primary .card-body h3 {
    font-size: 1.6rem;
  }

  .feature-card .card-body p {
    color: var(--text-muted);
    font-size: 0.94rem;
    line-height: 1.7;
    margin-bottom: 20px;
    flex: 1;
  }

  .card-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary);
    font-weight: 600;
    font-size: 0.9rem;
    margin-top: auto;
    transition: gap 0.3s;
  }

  .card-link:hover {
    gap: 14px;
    color: var(--primary);
  }

  /* CMS 最新信息 */
  .cms-section {
    padding: 96px 0;
    background: var(--warm-bg);
  }

  .cms-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: 48px;
  }

  @media (min-width: 1024px) {
    .cms-layout {
      grid-template-columns: 0.8fr 1.4fr;
      gap: 64px;
    }
  }

  .cms-side .section-tag {
    color: var(--accent);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-bottom: 12px;
    display: block;
  }

  .cms-side h2 {
    font-family: 'Noto Serif SC', serif;
    font-size: 2rem;
    font-weight: 700;
    line-height: 1.3;
    color: var(--text-main);
    margin-bottom: 20px;
  }

  .cms-side .desc {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.8;
    margin-bottom: 32px;
  }

  .cms-side .cms-more {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary);
    font-weight: 600;
    font-size: 0.9rem;
    transition: gap 0.3s;
  }

  .cms-side .cms-more:hover {
    gap: 14px;
  }

  .timeline-list {
    display: flex;
    flex-direction: column;
  }

  .timeline-item {
    display: grid;
    grid-template-columns: 72px 1fr;
    gap: 20px;
    padding: 28px 0;
    border-bottom: 1px dashed var(--border-light);
    transition: padding-left 0.3s;
    position: relative;
  }

  .timeline-item:last-child {
    border-bottom: none;
  }

  .timeline-item:hover {
    padding-left: 6px;
  }

  .timeline-date {
    text-align: left;
  }

  .timeline-date .day {
    font-family: 'Noto Serif SC', serif;
    font-size: 2rem;
    font-weight: 900;
    color: var(--primary);
    line-height: 1.1;
  }

  .timeline-date .ym {
    font-size: 0.78rem;
    color: var(--text-muted);
    letter-spacing: 0.04em;
  }

  .timeline-content .tl-tag {
    display: inline-block;
    background: var(--primary-light);
    color: var(--primary);
    font-size: 0.72rem;
    font-weight: 600;
    padding: 3px 12px;
    border-radius: 999px;
    margin-bottom: 8px;
    letter-spacing: 0.04em;
  }

  .timeline-content h3 {
    font-family: 'Noto Serif SC', serif;
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 6px;
    line-height: 1.4;
    transition: color 0.3s;
  }

  .timeline-item:hover .timeline-content h3 {
    color: var(--primary);
  }

  .timeline-content p {
    color: var(--text-muted);
    font-size: 0.88rem;
    line-height: 1.7;
  }

  .cms-empty {
    border: 2px dashed var(--border-light);
    border-radius: var(--radius-card);
    padding: 60px 40px;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.95rem;
  }

  .cms-empty .empty-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--primary-light);
    color: var(--primary);
    font-size: 1.4rem;
    margin: 0 auto 16px;
  }

  /* 信任背书 */
  .trust-section {
    padding: 96px 0;
    background: #fff;
    border-top: 1px solid var(--border-light);
    border-bottom: 1px solid var(--border-light);
  }

  .trust-section .section-tag {
    text-align: center;
    color: var(--accent);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-bottom: 12px;
  }

  .trust-section h2 {
    text-align: center;
    font-family: 'Noto Serif SC', serif;
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 48px;
  }

  .logo-wall {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    max-width: 800px;
    margin: 0 auto;
  }

  @media (min-width: 768px) {
    .logo-wall {
      grid-template-columns: repeat(4, 1fr);
    }
  }

  .logo-item {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 90px;
    background: var(--warm-bg);
    border: 1px solid var(--border-light);
    border-radius: 16px;
    font-family: 'Noto Serif SC', serif;
    font-weight: 700;
    font-size: 1.1rem;
    color: #9AA8A3;
    transition: all 0.4s ease;
    cursor: default;
  }

  .logo-item:hover {
    background: var(--primary-light);
    color: var(--primary);
    border-color: rgba(14, 80, 72, 0.3);
    box-shadow: 0 8px 20px rgba(14, 80, 72, 0.08);
  }

  .logo-item small {
    display: block;
    font-size: 0.7rem;
    font-weight: 400;
    letter-spacing: 0.08em;
  }

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

  .faq-section .section-tag {
    text-align: center;
    color: var(--accent);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-bottom: 12px;
  }

  .faq-section h2 {
    text-align: center;
    font-family: 'Noto Serif SC', serif;
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 52px;
  }

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

  .faq-item {
    border-bottom: 1px solid var(--border-light);
    padding: 20px 0;
  }

  .faq-item:first-child {
    border-top: 1px solid var(--border-light);
  }

  .faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    cursor: pointer;
    padding: 8px 0;
    background: none;
    border: none;
    width: 100%;
    text-align: left;
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-main);
    transition: color 0.3s;
  }

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

  .faq-icon {
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: 1.5px solid var(--border-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    color: var(--accent);
    transition: all 0.4s ease;
  }

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

  .faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.3s ease;
    padding: 0;
    color: var(--text-muted);
    font-size: 0.94rem;
    line-height: 1.85;
  }

  .faq-item.active .faq-answer {
    max-height: 300px;
    padding: 14px 0 6px;
  }

  /* CTA */
  .cta-section {
    padding: 100px 0;
    background-color: var(--dark-bg);
    background-image: url('/assets/images/backpic/back-2.png');
    background-size: cover;
    background-position: center;
    position: relative;
  }

  .cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(120deg, rgba(11, 31, 28, 0.94) 40%, rgba(14, 80, 72, 0.75) 100%);
  }

  .cta-inner {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 720px;
    margin: 0 auto;
  }

  .cta-inner h2 {
    font-family: 'Noto Serif SC', serif;
    font-size: 2.2rem;
    font-weight: 900;
    color: #fff;
    line-height: 1.35;
    margin-bottom: 20px;
  }

  .cta-inner p {
    color: rgba(255, 255, 255, 0.75);
    font-size: 1.05rem;
    line-height: 1.8;
    margin-bottom: 40px;
  }

  .cta-inner .btn-primary {
    font-size: 1.1rem;
    padding: 16px 40px;
  }

  .cta-note {
    margin-top: 20px;
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.5);
  }

  /* 页脚 */
  .site-footer {
    background: #0B1F1C;
    padding: 80px 0 0;
    color: rgba(255, 255, 255, 0.7);
  }

  .footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 48px;
    padding-bottom: 56px;
  }

  @media (min-width: 768px) {
    .footer-grid {
      grid-template-columns: 1.2fr 0.8fr 0.8fr 1fr;
    }
  }

  .footer-brand .logo-text {
    justify-content: flex-start;
    margin-bottom: 16px;
    color: #fff;
    text-shadow: none;
    font-size: 1.3rem;
  }

  .footer-brand p {
    font-size: 0.88rem;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.6);
    max-width: 300px;
  }

  .footer-col h4 {
    color: #fff;
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 20px;
    letter-spacing: 0.05em;
  }

  .footer-col a {
    display: block;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.88rem;
    padding: 6px 0;
    transition: color 0.3s, padding-left 0.3s;
  }

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

  .footer-contact {
    font-size: 0.88rem;
    line-height: 2;
    color: rgba(255, 255, 255, 0.6);
  }

  .footer-contact i {
    color: var(--accent);
    width: 22px;
    text-align: center;
    margin-right: 6px;
  }

  .footer-bottom {
    border-top: 1px solid var(--border-dark);
    padding: 24px 0;
    text-align: left;
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.4);
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 12px;
  }

  .footer-bottom a {
    color: rgba(255, 255, 255, 0.5);
  }

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

  /* 关于PHP标签通用 */
  .tl-show { position: relative; padding-left: 16px; }
  .tl-show::before { content: ''; position: absolute; left: 0; top: 8px; bottom: 8px; width: 2px; background: var(--primary-light); }

  /* 响应式 */
  @media (max-width: 1023px) {
    .header-nav {
      display: none;
    }
    .header-cta {
      display: none;
    }
    .hamburger {
      display: flex;
    }
  }

  @media (max-width: 768px) {
    .hero-content {
      padding-top: 140px;
    }
    .story-right .img-wrap img {
      height: 300px;
    }
    .story-float-card {
      left: 10px;
      bottom: -20px;
      padding: 14px 18px;
    }
  }

  @media (max-width: 640px) {
    .data-item {
      padding-left: 14px;
    }
    .data-item .num {
      font-size: 1.7rem;
    }
    .cms-side h2,
    .faq-section h2,
    .trust-section h2 {
      font-size: 1.6rem;
    }
    .cta-inner h2 {
      font-size: 1.8rem;
    }
    .timeline-item {
      grid-template-columns: 56px 1fr;
      gap: 14px;
    }
    .featured-grid .feature-card .card-img {
      height: 200px;
    }
  }

  /* 动效降级 */
  @media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
      animation-duration: 0.01ms !important;
      transition-duration: 0.01ms !important;
    }
  }

/* roulang page: category1 */
:root {
    --primary: #0E5048;
    --primary-dark: #0B1F1C;
    --primary-light: #E5F0EC;
    --accent: #B98A4E;
    --accent-light: #D9B98A;
    --cream: #FAF9F6;
    --text-main: #1A1A1A;
    --text-weak: #6B7280;
    --border-light: #E8E3DA;
    --border-deep: #1E4138;
  }

  * { box-sizing: border-box; margin: 0; padding: 0; }
  html { scroll-behavior: smooth; }
  body {
    font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
    background: var(--cream);
    color: var(--text-main);
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
  }
  h1, h2, h3, h4, h5 { font-family: 'Noto Serif SC', 'Source Han Serif SC', serif; letter-spacing: -0.02em; }
  a { text-decoration: none; color: inherit; transition: all 0.3s ease; }
  img { display: block; max-width: 100%; height: auto; }
  button, input, textarea { font-family: inherit; }

  .container-site {
    max-width: 1280px;
    margin: 0 auto;
    padding-left: 1rem;
    padding-right: 1rem;
  }
  @media (min-width: 640px) {
    .container-site { padding-left: 1.5rem; padding-right: 1.5rem; }
  }
  @media (min-width: 1024px) {
    .container-site { padding-left: 2rem; padding-right: 2rem; }
  }

  /* ===== Header Nav ===== */
  .site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(255,255,255,0.45);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255,255,255,0.25);
    transition: all 0.4s ease;
  }
  .site-header.scrolled {
    background: rgba(255,255,255,0.95);
    box-shadow: 0 4px 30px rgba(11,31,28,0.08);
    border-bottom-color: rgba(232,227,218,0.8);
  }
  .header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1.5rem;
    height: 80px;
  }
  .logo-text {
    font-family: 'Noto Serif SC', serif;
    font-size: 1.5rem;
    font-weight: 800;
    color: #1A1A1A;
    letter-spacing: -0.02em;
    display: flex;
    align-items: center;
    gap: 0.5rem;
  }
  .logo-text .logo-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.4rem;
    height: 2.4rem;
    background: var(--primary);
    border-radius: 10px;
    color: #fff;
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0;
  }
  .header-nav {
    display: flex;
    align-items: center;
    gap: 2rem;
  }
  .header-link {
    font-size: 0.95rem;
    font-weight: 500;
    color: #1A1A1A;
    position: relative;
    padding: 0.5rem 0;
    letter-spacing: 0.02em;
  }
  .header-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: width 0.3s ease;
  }
  .header-link:hover { color: var(--primary); }
  .header-link:hover::after { width: 100%; }
  .header-link.active { color: var(--primary); font-weight: 600; }
  .header-link.active::after { width: 100%; }

  .header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
  }
  .header-search {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    background: transparent;
    border: 1px solid rgba(255,255,255,0.4);
    color: #1A1A1A;
    cursor: pointer;
    transition: all 0.3s ease;
  }
  .header-search:hover { background: rgba(14,80,72,0.06); border-color: rgba(14,80,72,0.3); }
  .btn-accent {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    background: var(--accent);
    color: #fff;
    font-size: 0.9rem;
    font-weight: 600;
    padding: 0.75rem 1.6rem;
    border-radius: 12px;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 16px rgba(185,138,78,0.25);
  }
  .btn-accent:hover {
    transform: translateY(-2px);
    filter: brightness(1.05);
    box-shadow: 0 8px 24px rgba(185,138,78,0.35);
  }
  .btn-accent:active { transform: translateY(0); box-shadow: 0 2px 8px rgba(185,138,78,0.3); }

  /* Mobile nav */
  .nav-toggle {
    display: none;
    width: 44px;
    height: 44px;
    border: none;
    background: transparent;
    cursor: pointer;
    border-radius: 10px;
    align-items: center;
    justify-content: center;
    color: #1A1A1A;
  }
  .nav-toggle:hover { background: rgba(14,80,72,0.06); }

  .mobile-nav {
    display: none;
    position: fixed;
    top: 80px;
    left: 0;
    right: 0;
    background: rgba(255,255,255,0.92);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border-bottom: 1px solid var(--border-light);
    padding: 2rem 1.5rem;
    z-index: 99;
    box-shadow: 0 20px 40px rgba(11,31,28,0.1);
  }
  .mobile-nav.open { display: block; }
  .mobile-nav a {
    display: block;
    font-size: 1.3rem;
    font-weight: 500;
    padding: 0.9rem 0;
    color: #1A1A1A;
    border-bottom: 1px solid rgba(232,227,218,0.6);
    font-family: 'Noto Serif SC', serif;
  }
  .mobile-nav a:last-child { border-bottom: none; }
  .mobile-nav a.active { color: var(--primary); font-weight: 700; }

  @media (max-width: 1024px) {
    .header-nav { display: none; }
    .nav-toggle { display: flex; }
    .header-actions .header-search { display: none; }
  }

  /* ===== Page Hero ===== */
  .page-hero {
    position: relative;
    padding: 180px 0 100px;
    background: linear-gradient(rgba(11,31,28,0.82), rgba(14,80,72,0.75)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
    color: #fff;
    overflow: hidden;
  }
  .page-hero::after {
    content: '';
    position: absolute;
    bottom: -40px;
    right: -20px;
    width: 360px;
    height: 360px;
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: 50%;
    background: rgba(255,255,255,0.02);
    z-index: 0;
  }
  .page-hero .container-site { position: relative; z-index: 2; }
  .hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255,255,255,0.12);
    border: 1px solid rgba(255,255,255,0.2);
    backdrop-filter: blur(10px);
    padding: 0.4rem 1.2rem;
    border-radius: 999px;
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.06em;
    color: rgba(255,255,255,0.9);
  }
  .page-hero h1 {
    font-size: 3rem;
    font-weight: 800;
    margin: 1.5rem 0 1.2rem;
    line-height: 1.2;
    max-width: 720px;
  }
  @media (max-width: 768px) {
    .page-hero h1 { font-size: 2.2rem; }
  }
  .page-hero .hero-sub {
    font-size: 1.1rem;
    max-width: 620px;
    color: rgba(255,255,255,0.85);
    line-height: 1.8;
    margin-bottom: 2rem;
  }
  .hero-cta-row {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
  }
  .btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    background: var(--accent);
    color: #fff;
    font-size: 1rem;
    font-weight: 600;
    padding: 0.9rem 2.2rem;
    border-radius: 12px;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 20px rgba(185,138,78,0.35);
  }
  .btn-primary:hover { transform: translateY(-2px); filter: brightness(1.05); box-shadow: 0 10px 30px rgba(185,138,78,0.45); }
  .btn-primary:active { transform: translateY(0); }
  .btn-outline {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    background: transparent;
    color: #fff;
    font-size: 1rem;
    font-weight: 500;
    padding: 0.9rem 2.2rem;
    border-radius: 12px;
    border: 1.5px solid rgba(255,255,255,0.6);
    cursor: pointer;
    transition: all 0.3s ease;
  }
  .btn-outline:hover { background: rgba(255,255,255,0.1); border-color: #fff; }

  /* ===== Section Common ===== */
  .section-block { padding: 90px 0; }
  .section-block.alt-bg { background: var(--primary-light); }
  .section-block.deep-bg { background: var(--primary-dark); color: #fff; }
  .section-label {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    color: var(--primary);
    margin-bottom: 1rem;
    text-transform: uppercase;
  }
  .section-label .label-dot {
    width: 8px; height: 8px;
    background: var(--accent);
    border-radius: 50%;
    display: inline-block;
  }
  .section-title {
    font-size: 2.2rem;
    font-weight: 800;
    line-height: 1.25;
    margin-bottom: 1rem;
    color: var(--primary-dark);
  }
  .section-desc {
    font-size: 1.05rem;
    color: var(--text-weak);
    max-width: 640px;
    line-height: 1.8;
  }
  .deep-bg .section-title { color: #fff; }
  .deep-bg .section-desc { color: rgba(255,255,255,0.7); }

  /* ===== Alternating Blocks ===== */
  .alternate-grid {
    display: flex;
    flex-direction: column;
    gap: 6rem;
  }
  .alternate-item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
  }
  .alternate-item.reverse .alternate-media { order: 2; }
  .alternate-media {
    position: relative;
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 0 20px 50px rgba(11,31,28,0.12);
    aspect-ratio: 4/3;
  }
  .alternate-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
  }
  .alternate-media:hover img { transform: scale(1.03); }
  .alternate-media::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(0deg, rgba(11,31,28,0.15) 0%, transparent 60%);
    pointer-events: none;
  }
  .alternate-number {
    position: absolute;
    bottom: 1.2rem;
    left: 1.5rem;
    font-family: 'Noto Serif SC', serif;
    font-size: 3rem;
    font-weight: 900;
    color: rgba(255,255,255,0.85);
    z-index: 2;
    text-shadow: 0 2px 16px rgba(0,0,0,0.2);
  }
  .alternate-content h3 {
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--primary-dark);
    line-height: 1.3;
  }
  .alternate-content p {
    font-size: 1rem;
    color: var(--text-weak);
    line-height: 1.8;
    margin-bottom: 1rem;
  }
  .alternate-list {
    list-style: none;
    padding: 0;
    margin: 1.2rem 0;
  }
  .alternate-list li {
    display: flex;
    align-items: flex-start;
    gap: 0.6rem;
    font-size: 0.95rem;
    color: var(--text-main);
    padding: 0.35rem 0;
  }
  .alternate-list li i {
    color: var(--accent);
    margin-top: 0.35rem;
    font-size: 0.8rem;
  }
  .text-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary);
    font-weight: 600;
    font-size: 0.95rem;
    margin-top: 0.5rem;
    transition: all 0.3s ease;
  }
  .text-link:hover { gap: 0.8rem; color: var(--accent); }

  @media (max-width: 1024px) {
    .alternate-item { grid-template-columns: 1fr; gap: 2rem; }
    .alternate-item.reverse .alternate-media { order: 0; }
    .alternate-media { aspect-ratio: 16/10; }
  }

  /* ===== Capability Cards ===== */
  .capability-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-top: 3rem;
  }
  .capability-card {
    background: #fff;
    border: 1px solid var(--border-light);
    border-radius: 20px;
    padding: 2rem 1.8rem;
    box-shadow: var(--shadow-soft, 0 4px 24px rgba(11,31,28,0.05));
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
  }
  .capability-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 3px;
    background: linear-gradient(90deg, var(--accent), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
  }
  .capability-card:hover { transform: translateY(-6px); box-shadow: 0 16px 40px rgba(11,31,28,0.1); }
  .capability-card:hover::before { opacity: 1; }
  .capability-icon {
    width: 52px;
    height: 52px;
    background: var(--primary-light);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    color: var(--primary);
    margin-bottom: 1.2rem;
  }
  .capability-card h4 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0.6rem;
    color: var(--primary-dark);
    font-family: 'Inter', sans-serif;
    letter-spacing: -0.01em;
  }
  .capability-card p {
    font-size: 0.9rem;
    color: var(--text-weak);
    line-height: 1.7;
  }
  @media (max-width: 1024px) {
    .capability-grid { grid-template-columns: repeat(2, 1fr); }
  }
  @media (max-width: 640px) {
    .capability-grid { grid-template-columns: 1fr; }
  }

  /* ===== Process Timeline ===== */
  .process-step {
    display: flex;
    gap: 1.8rem;
    position: relative;
    padding-bottom: 2.8rem;
  }
  .process-step:last-child { padding-bottom: 0; }
  .process-step::before {
    content: '';
    position: absolute;
    left: 24px;
    top: 56px;
    bottom: 0;
    width: 1px;
    background: rgba(255,255,255,0.15);
  }
  .process-step:last-child::before { display: none; }
  .process-num {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Noto Serif SC', serif;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--accent);
    flex-shrink: 0;
    z-index: 1;
  }
  .process-content h4 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.4rem;
    color: #fff;
  }
  .process-content p {
    font-size: 0.95rem;
    color: rgba(255,255,255,0.65);
    line-height: 1.7;
    max-width: 560px;
  }
  @media (max-width: 640px) {
    .process-step { gap: 1rem; }
  }

  /* ===== Stats Strip ===== */
  .stats-strip {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    border-top: 1px solid rgba(255,255,255,0.15);
    border-bottom: 1px solid rgba(255,255,255,0.15);
    padding: 2.5rem 0;
    margin: 3rem 0 0;
  }
  .stat-item {
    text-align: left;
    padding-right: 2rem;
  }
  .stat-item .stat-num {
    font-family: 'Noto Serif SC', serif;
    font-size: 2.2rem;
    font-weight: 800;
    color: #fff;
    line-height: 1.2;
  }
  .stat-item .stat-num span { color: var(--accent); }
  .stat-item .stat-label {
    font-size: 0.85rem;
    color: rgba(255,255,255,0.6);
    margin-top: 0.3rem;
    letter-spacing: 0.04em;
  }
  @media (max-width: 768px) {
    .stats-strip { grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
  }
  @media (max-width: 480px) {
    .stats-strip { grid-template-columns: 1fr; }
  }

  /* ===== FAQ ===== */
  .faq-wrap { max-width: 800px; margin: 2.5rem auto 0; }
  .faq-item {
    border-bottom: 1px solid rgba(255,255,255,0.15);
    padding: 1.5rem 0;
  }
  .faq-item:first-child { border-top: 1px solid rgba(255,255,255,0.15); }
  .faq-q {
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    color: #fff;
    gap: 1rem;
  }
  .faq-q .faq-icon {
    width: 32px; height: 32px;
    border-radius: 50%;
    border: 1px solid rgba(255,255,255,0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    color: var(--accent);
    flex-shrink: 0;
    transition: transform 0.3s ease;
  }
  .faq-item.open .faq-icon { transform: rotate(45deg); }
  .faq-a {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.3s ease;
    padding: 0 0 0;
    font-size: 0.95rem;
    color: rgba(255,255,255,0.7);
    line-height: 1.75;
  }
  .faq-item.open .faq-a { max-height: 400px; padding-top: 1rem; }

  @media (max-width: 768px) {
    .faq-q { font-size: 0.95rem; }
  }

  /* ===== CTA Section ===== */
  .cta-section {
    background: linear-gradient(135deg, var(--primary) 0%, #0B3B35 100%);
    padding: 100px 0;
    position: relative;
    overflow: hidden;
  }
  .cta-section::before {
    content: '';
    position: absolute;
    top: -60px;
    right: -60px;
    width: 300px;
    height: 300px;
    border: 2px solid rgba(255,255,255,0.06);
    border-radius: 50%;
  }
  .cta-section::after {
    content: '';
    position: absolute;
    bottom: -80px;
    left: -40px;
    width: 240px;
    height: 240px;
    border: 2px solid rgba(255,255,255,0.04);
    border-radius: 50%;
  }
  .cta-inner {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 720px;
    margin: 0 auto;
  }
  .cta-inner h2 {
    font-size: 2.4rem;
    font-weight: 800;
    color: #fff;
    margin-bottom: 1.2rem;
    line-height: 1.3;
  }
  .cta-inner p {
    font-size: 1.05rem;
    color: rgba(255,255,255,0.75);
    margin-bottom: 2.2rem;
    line-height: 1.8;
  }
  .cta-buttons {
    display: flex;
    justify-content: center;
    gap: 1.2rem;
    flex-wrap: wrap;
  }
  @media (max-width: 640px) {
    .cta-inner h2 { font-size: 1.8rem; }
  }

  /* ===== Footer ===== */
  .site-footer {
    background: var(--primary-dark);
    color: rgba(255,255,255,0.75);
    padding: 70px 0 30px;
  }
  .footer-grid {
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
    gap: 3rem;
    padding-bottom: 3rem;
    border-bottom: 1px solid rgba(255,255,255,0.08);
  }
  .footer-brand .logo-text { color: #fff; margin-bottom: 1.2rem; }
  .footer-brand .logo-text .logo-mark { background: var(--accent); }
  .footer-brand p {
    font-size: 0.92rem;
    line-height: 1.8;
    color: rgba(255,255,255,0.55);
    max-width: 320px;
  }
  .footer-col h4 {
    font-size: 1rem;
    font-weight: 600;
    color: #fff;
    margin-bottom: 1.2rem;
    font-family: 'Inter', sans-serif;
  }
  .footer-col a {
    display: block;
    font-size: 0.9rem;
    color: rgba(255,255,255,0.55);
    padding: 0.35rem 0;
    transition: all 0.3s ease;
  }
  .footer-col a:hover { color: var(--accent); padding-left: 6px; }
  .footer-contact div {
    font-size: 0.9rem;
    color: rgba(255,255,255,0.55);
    padding: 0.35rem 0;
    display: flex;
    align-items: center;
    gap: 0.7rem;
  }
  .footer-contact i { color: var(--accent); width: 18px; }
  .footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 2rem;
    font-size: 0.85rem;
    color: rgba(255,255,255,0.35);
    gap: 1rem;
    flex-wrap: wrap;
  }
  .footer-bottom a { color: rgba(255,255,255,0.35); }
  .footer-bottom a:hover { color: var(--accent); }
  @media (max-width: 1024px) {
    .footer-grid { grid-template-columns: 1fr 1fr; }
  }
  @media (max-width: 640px) {
    .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
    .footer-bottom { flex-direction: column; text-align: center; }
  }

  /* ===== Scrollbar ===== */
  ::selection { background: rgba(14,80,72,0.15); }

  /* ===== Reduced Motion ===== */
  @media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
      animation-duration: 0.01ms !important;
      transition-duration: 0.1ms !important;
    }
    html { scroll-behavior: auto; }
  }

  /* ===== Split Deco ===== */
  .split-deco {
    display: flex;
    flex-direction: column;
    gap: 3rem;
    margin-top: 2rem;
  }
  .deco-row {
    display: flex;
    align-items: flex-start;
    gap: 2rem;
  }
  .deco-index {
    font-family: 'Noto Serif SC', serif;
    font-size: 2.2rem;
    font-weight: 900;
    color: var(--accent);
    line-height: 1;
    min-width: 60px;
  }
  .deco-line {
    width: 2px;
    height: 100%;
    min-height: 80px;
    background: linear-gradient(to bottom, var(--accent), transparent);
    margin-top: 0.4rem;
  }
  @media (max-width: 640px) {
    .deco-row { gap: 1rem; }
  }

/* roulang page: article */
:root {
  --primary: #0E5048;
  --primary-light: #E5F0EC;
  --accent: #B98A4E;
  --bg-warm: #FAF9F6;
  --dark-bg: #0B1F1C;
  --text-main: #1A1A1A;
  --text-body: #3D3D3D;
  --text-muted: #7A7A7A;
  --border-light: #E8E3DA;
  --border-dark: #1E4138;
  --radius-lg: 24px;
  --radius-btn: 12px;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.05);
  --shadow-xl: 0 20px 40px rgba(0,0,0,0.12);
  --font-display: 'Noto Serif SC', 'Source Han Serif SC', 'Songti SC', serif;
  --font-body: 'Inter', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background-color: var(--bg-warm);
  color: var(--text-body);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { text-decoration: none; color: inherit; }
button { font-family: inherit; cursor: pointer; }

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

/* ===== 导航 ===== */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.45);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255,255,255,0.25);
  transition: all 0.3s ease;
}
.site-header.scrolled {
  background: rgba(255,255,255,0.96);
  box-shadow: 0 4px 24px rgba(0,0,0,0.08);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 2rem;
}
.logo-text {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: 0.02em;
  white-space: nowrap;
}
.header-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}
.header-link {
  padding: 0.5rem 1rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-body);
  border-radius: 999px;
  transition: all 0.25s ease;
}
.header-link:hover {
  color: var(--primary);
  background: var(--primary-light);
}
.header-link.active {
  color: var(--primary);
  background: var(--primary-light);
  font-weight: 600;
}
.header-cta {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}
.btn-accent {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--accent);
  color: #fff;
  padding: 0.6rem 1.4rem;
  border-radius: var(--radius-btn);
  font-size: 0.875rem;
  font-weight: 600;
  transition: all 0.25s ease;
  border: none;
  cursor: pointer;
  white-space: nowrap;
}
.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(185,138,78,0.35);
  filter: brightness(1.05);
}
.btn-accent:active { transform: translateY(0); }
.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: transparent;
  color: var(--text-body);
  padding: 0.6rem 1.2rem;
  border-radius: var(--radius-btn);
  font-size: 0.875rem;
  font-weight: 500;
  border: 1px solid var(--border-light);
  transition: all 0.25s ease;
  cursor: pointer;
}
.btn-ghost:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(14,80,72,0.05);
}
.header-search { position: relative; }
.search-icon-btn {
  width: 38px; height: 38px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  border: 1px solid var(--border-light);
  background: transparent;
  color: var(--text-body);
  cursor: pointer;
  transition: all 0.2s ease;
}
.search-icon-btn:hover { border-color: var(--primary); color: var(--primary); }
.search-dropdown {
  position: absolute; top: 110%; right: 0;
  width: 280px;
  background: #fff;
  border: 1px solid var(--border-light);
  border-radius: 12px;
  box-shadow: var(--shadow-xl);
  padding: 0.75rem;
  display: none;
  z-index: 30;
}
.search-dropdown.open { display: block; }
.search-form { display: flex; align-items: center; gap: 0.5rem; }
.search-input {
  flex: 1;
  border: 1px solid var(--border-light);
  border-radius: 8px;
  padding: 0.5rem 0.75rem;
  font-size: 0.875rem;
  outline: none;
  background: var(--bg-warm);
  transition: border-color 0.2s, box-shadow 0.2s;
}
.search-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(14,80,72,0.15);
}
.search-submit {
  width: 34px; height: 34px;
  border-radius: 8px;
  border: none;
  background: var(--primary);
  color: #fff;
  cursor: pointer;
  transition: background 0.2s;
  display: flex; align-items: center; justify-content: center;
}
.search-submit:hover { background: var(--accent); }
.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.4rem;
  color: var(--text-main);
  cursor: pointer;
  padding: 0.5rem;
}
.mobile-menu {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(250,249,246,0.96);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  z-index: 999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
}
.mobile-menu.open { display: flex; }
.mobile-menu-link {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-main);
  padding: 0.5rem 1rem;
  transition: all 0.25s ease;
}
.mobile-menu-link:hover { color: var(--primary); }
.mobile-menu-close {
  position: absolute;
  top: 1.5rem; right: 1.5rem;
  font-size: 1.5rem;
  background: none;
  border: none;
  color: var(--text-main);
  cursor: pointer;
}

/* ===== 面包屑 ===== */
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
}
.breadcrumb a {
  color: var(--primary);
  transition: color 0.2s;
}
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb .sep { color: #C8C4BB; }
.breadcrumb .current {
  color: var(--text-body);
  max-width: 380px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ===== 文章 Hero ===== */
.article-hero {
  padding: 8.5rem 0 3.5rem;
  background: linear-gradient(180deg, #E5F0EC 0%, #FAF9F6 100%);
  position: relative;
  overflow: hidden;
}
.article-hero::before {
  content: '';
  position: absolute;
  top: -80px; right: -40px;
  width: 320px; height: 320px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(14,80,72,0.1) 0%, transparent 70%);
  pointer-events: none;
}
.article-hero::after {
  content: '';
  position: absolute;
  bottom: -120px; left: -60px;
  width: 360px; height: 360px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(185,138,78,0.08) 0%, transparent 70%);
  pointer-events: none;
}
.article-head {
  position: relative;
  z-index: 1;
  max-width: 880px;
}
.article-title {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1.3;
  color: var(--text-main);
  letter-spacing: -0.02em;
  margin: 1rem 0 1.5rem;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  font-size: 0.875rem;
  color: var(--text-muted);
  align-items: center;
}
.article-meta-item {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
}
.article-category-badge {
  display: inline-flex;
  align-items: center;
  background: rgba(14,80,72,0.08);
  color: var(--primary);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.25rem 0.875rem;
  border-radius: 999px;
}

/* ===== 正文 ===== */
.article-content {
  padding: 3.5rem 0 2rem;
}
.article-wrapper {
  max-width: 880px;
  margin: 0 auto;
}
.article-body {
  max-width: 720px;
  margin: 0 auto;
  font-size: 1.0625rem;
  line-height: 1.85;
  color: var(--text-body);
}
.article-body h2 {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text-main);
  margin: 2.5rem 0 1rem;
  line-height: 1.4;
}
.article-body h3 {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--text-main);
  margin: 2rem 0 0.75rem;
}
.article-body h4 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-main);
  margin: 1.5rem 0 0.5rem;
}
.article-body p {
  margin-bottom: 1.25rem;
}
.article-body img {
  border-radius: 16px;
  margin: 2rem 0;
}
.article-body ul,
.article-body ol {
  padding-left: 1.625rem;
  margin-bottom: 1.25rem;
}
.article-body li {
  margin-bottom: 0.5rem;
}
.article-body blockquote {
  border-left: 4px solid var(--accent);
  padding: 1rem 1.5rem;
  background: #F8F4EE;
  border-radius: 0 12px 12px 0;
  margin: 1.5rem 0;
  color: var(--text-main);
  font-style: italic;
}
.article-body a {
  color: var(--primary);
  border-bottom: 1px solid rgba(14,80,72,0.2);
  transition: border-color 0.2s;
}
.article-body a:hover { border-bottom-color: var(--primary); }
.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.95rem;
}
.article-body th,
.article-body td {
  padding: 0.75rem 1rem;
  border: 1px solid var(--border-light);
  text-align: left;
}
.article-body th {
  background: var(--primary-light);
  font-weight: 600;
  color: var(--text-main);
}
.article-body code {
  background: #F0EFEA;
  padding: 0.2rem 0.4rem;
  border-radius: 6px;
  font-size: 0.9rem;
}
.article-body pre {
  background: var(--dark-bg);
  color: #E5F0EC;
  padding: 1.25rem;
  border-radius: 12px;
  overflow-x: auto;
  margin: 1.5rem 0;
}

/* ===== 未找到 ===== */
.not-found {
  max-width: 720px;
  margin: 2rem auto 4rem;
  text-align: center;
  padding: 5rem 2rem;
  background: #fff;
  border: 1px dashed var(--border-light);
  border-radius: var(--radius-lg);
}
.not-found-icon {
  width: 72px; height: 72px;
  margin: 0 auto 1.5rem;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
}
.not-found h2 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--text-main);
  margin-bottom: 0.75rem;
}
.not-found p {
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

/* ===== 标签 ===== */
.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 2rem 0 1rem;
}
.tag-pill {
  display: inline-flex;
  align-items: center;
  padding: 0.3rem 0.875rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 500;
  background: var(--bg-warm);
  border: 1px solid var(--border-light);
  color: var(--text-body);
  transition: all 0.2s ease;
}
.tag-pill:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-light);
}

/* ===== 上一篇/下一篇 ===== */
.article-prev-next {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin: 2.5rem 0;
  padding: 1.5rem 0;
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
}
.pn-link {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: 1.25rem 1.5rem;
  border-radius: 12px;
  background: #fff;
  border: 1px solid var(--border-light);
  transition: all 0.25s ease;
}
.pn-link:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-sm);
  transform: translateY(-2px);
}
.pn-link.pn-next { text-align: right; }
.pn-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.pn-link.pn-next .pn-label { justify-content: flex-end; }
.pn-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-main);
}

/* ===== 相关推荐 ===== */
.related-section {
  margin: 3rem 0;
  padding-top: 3rem;
  border-top: 1px solid var(--border-light);
}
.section-label {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.5rem;
}
.section-title {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 2rem;
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.related-card {
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-light);
  transition: all 0.3s ease;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
}
.related-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: rgba(14,80,72,0.3);
}
.related-card:first-child {
  grid-column: span 2;
}
.related-card-img {
  aspect-ratio: 16/9;
  overflow: hidden;
  position: relative;
}
.related-card:first-child .related-card-img {
  aspect-ratio: 21/9;
}
.related-card-img img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}
.related-card:hover .related-card-img img {
  transform: scale(1.03);
}
.related-card-content {
  padding: 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.related-card-tag {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-light);
  padding: 0.2rem 0.75rem;
  border-radius: 999px;
  align-self: flex-start;
}
.related-card-title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-main);
  line-height: 1.45;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.related-card-desc {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ===== FAQ ===== */
.faq-section {
  padding: 4rem 0 2rem;
}
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}
.faq-item {
  border-bottom: 1px solid var(--border-light);
  padding: 0.25rem 0;
  transition: background 0.2s;
}
.faq-item:first-child {
  border-top: 1px solid var(--border-light);
}
.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  background: none;
  border: none;
  padding: 1.1rem 0;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-main);
  cursor: pointer;
  text-align: left;
  transition: color 0.2s;
}
.faq-question:hover { color: var(--primary); }
.faq-icon {
  width: 28px; height: 28px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  flex-shrink: 0;
  transition: all 0.3s ease;
}
.faq-item.active .faq-icon {
  transform: rotate(135deg);
  background: var(--primary);
  color: #fff;
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
  font-size: 0.875rem;
  color: var(--text-body);
  line-height: 1.75;
}
.faq-answer p {
  padding-bottom: 1.25rem;
  padding-right: 2.5rem;
}
.faq-item.active .faq-answer {
  max-height: 400px;
}

/* ===== CTA ===== */
.cta-section {
  padding: 5rem 0;
  margin-top: 4rem;
  background-image: url('/assets/images/backpic/back-1.webp');
  background-size: cover;
  background-position: center;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(11, 31, 28, 0.92);
}
.cta-section .container-site {
  position: relative;
  z-index: 1;
  text-align: center;
}
.cta-title {
  font-family: var(--font-display);
  font-size: 2.25rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 1rem;
  line-height: 1.35;
}
.cta-sub {
  color: #A8B8B2;
  font-size: 1rem;
  margin-bottom: 2rem;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}
.btn-cta-ghost {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 2rem;
  border: 1px solid rgba(255,255,255,0.4);
  border-radius: var(--radius-btn);
  color: #fff;
  font-weight: 500;
  font-size: 0.9rem;
  transition: all 0.25s ease;
  background: transparent;
}
.btn-cta-ghost:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.7);
  transform: translateY(-2px);
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--dark-bg);
  color: #A8B8B2;
  padding: 4rem 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: 3rem;
}
.footer-brand .logo-text {
  color: #fff;
}
.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.7;
  color: #8FA39D;
  margin-top: 1rem;
}
.footer-col h4 {
  font-size: 0.9rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 1rem;
}
.footer-col a {
  display: block;
  font-size: 0.85rem;
  color: #8FA39D;
  padding: 0.3rem 0;
  transition: color 0.2s ease;
}
.footer-col a:hover {
  color: var(--accent);
}
.footer-contact div {
  font-size: 0.85rem;
  color: #8FA39D;
  padding: 0.3rem 0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.footer-contact i {
  color: var(--accent);
  font-size: 0.8rem;
}
.footer-bottom {
  border-top: 1px solid var(--border-dark);
  padding: 1.5rem 0;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
  font-size: 0.8rem;
  color: #6B8079;
}
.footer-bottom a {
  color: #8FA39D;
  transition: color 0.2s;
}
.footer-bottom a:hover {
  color: var(--accent);
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .related-grid { grid-template-columns: 1fr 1fr; }
  .related-card:first-child { grid-column: span 2; }
}
@media (max-width: 768px) {
  .container-site { padding: 0 1.25rem; }
  .header-nav { display: none; }
  .menu-toggle { display: block; }
  .header-cta .btn-accent { display: none; }
  .article-hero { padding: 7rem 0 2.5rem; }
  .article-title { font-size: 2rem; }
  .related-grid { grid-template-columns: 1fr; }
  .related-card:first-child { grid-column: span 1; }
  .related-card:first-child .related-card-img { aspect-ratio: 16/9; }
  .footer-grid { grid-template-columns: 1fr; }
  .cta-title { font-size: 1.75rem; }
  .article-prev-next { grid-template-columns: 1fr; }
}
@media (max-width: 520px) {
  .article-meta { gap: 0.75rem; font-size: 0.8rem; }
  .breadcrumb { font-size: 0.8rem; }
  .breadcrumb .current { max-width: 200px; }
  .faq-answer p { padding-right: 0; }
  .search-dropdown { width: 230px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
}

/* roulang page: category2 */
:root {
    --primary: #0E5048;
    --primary-light: #E5F0EC;
    --accent: #B98A4E;
    --warm: #FAF9F6;
    --dark: #0B1F1C;
    --text: #1A1A1A;
    --text-light: #5C6670;
    --border: #E8E3DA;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.12);
    --radius-lg: 24px;
    --radius-md: 12px;
    --radius-pill: 999px;
  }

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

  html {
    scroll-behavior: smooth;
  }

  body {
    font-family: 'Inter', 'PingFang SC', system-ui, sans-serif;
    color: var(--text);
    background: var(--warm);
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
  }

  a {
    text-decoration: none;
    color: inherit;
    transition: color .25s ease;
  }

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

  .container-site {
    max-width: 80rem;
    margin: 0 auto;
    padding-left: 1.5rem;
    padding-right: 1.5rem;
  }

  @media (min-width: 640px) {
    .container-site {
      padding-left: 2rem;
      padding-right: 2rem;
    }
  }

  @media (min-width: 1024px) {
    .container-site {
      padding-left: 2.5rem;
      padding-right: 2.5rem;
    }
  }

  .site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(11, 31, 28, 0.35);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
    transition: all .35s ease;
  }

  .site-header.scrolled {
    background: rgba(255, 255, 255, 0.94);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
    border-bottom: 1px solid rgba(232, 227, 218, 0.8);
  }

  .header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 76px;
  }

  .logo-text {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: 'Noto Serif SC', serif;
    font-size: 22px;
    font-weight: 800;
    letter-spacing: .02em;
    color: #fff;
    white-space: nowrap;
    transition: color .3s ease;
  }

  .logo-icon {
    width: 30px;
    height: 30px;
    min-width: 30px;
    background: linear-gradient(135deg, var(--primary) 58%, var(--accent) 58%);
    border-radius: 9px;
    position: relative;
    display: inline-block;
  }

  .logo-icon::after {
    content: 'K8';
    position: absolute;
    bottom: 3px;
    right: 3px;
    font-size: 8px;
    font-weight: 900;
    color: #fff;
    letter-spacing: 0;
    font-family: 'Inter', sans-serif;
  }

  .site-header.scrolled .logo-text {
    color: var(--text);
  }

  .header-nav {
    display: flex;
    align-items: center;
    gap: 1.75rem;
  }

  .header-link {
    font-size: 15px;
    font-weight: 500;
    letter-spacing: .02em;
    color: rgba(255, 255, 255, 0.88);
    padding: 6px 2px;
    position: relative;
    transition: color .25s ease;
  }

  .header-link::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    border-radius: 2px;
    transition: width .3s ease;
  }

  .header-link:hover::after,
  .header-link.active::after {
    width: 100%;
  }

  .header-link:hover {
    color: #fff;
  }

  .header-link.active {
    color: #fff;
    font-weight: 600;
  }

  .site-header.scrolled .header-link {
    color: var(--text);
  }

  .site-header.scrolled .header-link:hover {
    color: var(--primary);
  }

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

  .header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
  }

  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 15px;
    font-weight: 600;
    padding: 13px 30px;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: all .3s ease;
    outline: none;
  }

  .btn:focus-visible {
    box-shadow: 0 0 0 4px rgba(14, 80, 72, 0.2);
  }

  .btn-accent {
    background: var(--accent);
    color: #fff;
    box-shadow: 0 4px 14px rgba(185, 138, 78, 0.3);
  }

  .btn-accent:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(185, 138, 78, 0.4);
    filter: brightness(1.05);
  }

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

  .btn-ghost {
    background: transparent;
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.55);
  }

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

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

  .btn-dark:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(14, 80, 72, 0.3);
  }

  .mobile-toggle {
    display: none;
    width: 44px;
    height: 44px;
    border: none;
    background: transparent;
    cursor: pointer;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
  }

  .mobile-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: #fff;
    border-radius: 2px;
    transition: all .3s ease;
  }

  .site-header.scrolled .mobile-toggle span {
    background: var(--text);
  }

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

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

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

  /* Category Hero */
  .category-hero {
    position: relative;
    min-height: 60vh;
    display: flex;
    align-items: center;
    padding: 180px 0 80px;
    background: linear-gradient(135deg, rgba(11, 31, 28, 0.86) 0%, rgba(14, 80, 72, 0.72) 100%);
    overflow: hidden;
  }

  .category-hero-bg {
    position: absolute;
    inset: 0;
    background-image: url('/assets/images/backpic/back-1.webp');
    background-size: cover;
    background-position: center;
    opacity: .32;
    z-index: 0;
  }

  .category-hero::before {
    content: '';
    position: absolute;
    width: 520px;
    height: 520px;
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 50%;
    top: -140px;
    right: -90px;
    z-index: 0;
  }

  .category-hero::after {
    content: '';
    position: absolute;
    width: 760px;
    height: 760px;
    border: 1px solid rgba(255, 255, 255, 0.04);
    border-radius: 50%;
    bottom: -240px;
    left: -180px;
    z-index: 0;
  }

  .category-hero-content {
    position: relative;
    z-index: 1;
    max-width: 820px;
  }

  .category-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-pill);
    color: #fff;
    font-size: 13px;
    font-weight: 500;
    letter-spacing: .08em;
    padding: 6px 18px;
    text-transform: uppercase;
    margin-bottom: 28px;
    backdrop-filter: blur(10px);
  }

  .category-hero h1 {
    font-family: 'Noto Serif SC', serif;
    font-size: 3.5rem;
    line-height: 1.15;
    font-weight: 800;
    color: #fff;
    letter-spacing: -0.02em;
    margin-bottom: 22px;
  }

  .category-hero h1 .h1-brand {
    color: var(--accent);
    font-size: 0.62em;
    display: block;
    margin-top: 10px;
    font-weight: 600;
    letter-spacing: .06em;
  }

  .category-hero p {
    font-size: 1.15rem;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.78);
    margin-bottom: 36px;
    max-width: 620px;
  }

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

  /* Section common */
  .section-capabilities,
  .section-alt,
  .section-stats,
  .section-scenarios,
  .section-faq,
  .section-cta {
    padding: 80px 0;
  }

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

  .section-tag {
    display: inline-block;
    background: var(--primary-light);
    color: var(--primary);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: .08em;
    padding: 5px 16px;
    border-radius: var(--radius-pill);
    margin-bottom: 14px;
  }

  .section-header h2 {
    font-family: 'Noto Serif SC', serif;
    font-size: 2.25rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    line-height: 1.3;
    color: var(--text);
    margin-bottom: 14px;
  }

  .section-header p {
    font-size: 1.05rem;
    color: var(--text-light);
    line-height: 1.7;
  }

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

  .capability-item {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    transition: all .3s ease;
    box-shadow: var(--shadow-sm);
  }

  .capability-item:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(14, 80, 72, 0.25);
  }

  .capability-item .cap-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-light);
    color: var(--primary);
    border-radius: 16px;
    font-size: 22px;
    margin-bottom: 22px;
    transition: all .3s ease;
  }

  .capability-item:hover .cap-icon {
    background: var(--primary);
    color: #fff;
  }

  .capability-item h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--text);
  }

  .capability-item p {
    font-size: 0.95rem;
    color: var(--text-light);
    line-height: 1.7;
  }

  /* Alt sections */
  .section-alt {
    background: #fff;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
  }

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

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

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

  .alt-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    min-height: 360px;
    transition: transform .6s ease;
  }

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

  .alt-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(11, 31, 28, 0.2) 0%, transparent 42%);
    pointer-events: none;
  }

  .alt-content {
    padding: 10px 0;
  }

  .alt-content .alt-number {
    font-family: 'Noto Serif SC', serif;
    font-size: 2.8rem;
    font-weight: 900;
    color: var(--primary-light);
    line-height: 1;
    margin-bottom: 8px;
    display: block;
    letter-spacing: 0.02em;
  }

  .alt-content h2 {
    font-family: 'Noto Serif SC', serif;
    font-size: 1.9rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    color: var(--text);
    margin-bottom: 14px;
    line-height: 1.3;
  }

  .alt-content>p {
    font-size: 1rem;
    color: var(--text-light);
    line-height: 1.75;
    margin-bottom: 20px;
  }

  .alt-list {
    list-style: none;
    margin-bottom: 26px;
  }

  .alt-list li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 0.95rem;
    color: var(--text);
    padding: 6px 0;
    font-weight: 500;
  }

  .alt-list li i {
    color: var(--accent);
    margin-top: 5px;
    font-size: 0.85rem;
  }

  .link-arrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--primary);
    border-bottom: 1px solid transparent;
    transition: all .3s ease;
  }

  .link-arrow i {
    transition: transform .3s ease;
  }

  .link-arrow:hover {
    border-bottom-color: var(--primary);
  }

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

  /* Stats */
  .section-stats {
    background: var(--dark);
    color: #fff;
    position: relative;
    overflow: hidden;
  }

  .section-stats::before {
    content: 'K8';
    position: absolute;
    font-family: 'Noto Serif SC', serif;
    font-size: 18rem;
    font-weight: 900;
    color: rgba(255, 255, 255, 0.03);
    right: -40px;
    top: -60px;
    line-height: 1;
    pointer-events: none;
  }

  .stats-header h2 {
    font-family: 'Noto Serif SC', serif;
    font-size: 2rem;
    font-weight: 700;
    color: #fff;
    text-align: center;
    margin-bottom: 10px;
  }

  .stats-header p {
    text-align: center;
    color: rgba(255, 255, 255, 0.5);
    font-size: 1rem;
    margin-bottom: 50px;
  }

  .stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
  }

  .stat-item {
    text-align: center;
    padding: 20px;
    border-left: 1px solid rgba(255, 255, 255, 0.08);
  }

  .stat-item:first-child {
    border-left: none;
  }

  .stat-number {
    font-family: 'Noto Serif SC', serif;
    font-size: 2.8rem;
    font-weight: 800;
    color: var(--accent);
    line-height: 1.2;
    margin-bottom: 6px;
    letter-spacing: -0.02em;
  }

  .stat-label {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.6);
    letter-spacing: .04em;
  }

  /* Scenarios */
  .section-scenarios {
    background: var(--warm);
  }

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

  .scenario-card {
    display: flex;
    gap: 20px;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 30px;
    transition: all .3s ease;
    box-shadow: var(--shadow-sm);
  }

  .scenario-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(14, 80, 72, 0.2);
  }

  .scenario-icon {
    width: 52px;
    height: 52px;
    min-width: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-light);
    color: var(--primary);
    border-radius: 14px;
    font-size: 20px;
  }

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

  .scenario-card p {
    font-size: 0.92rem;
    color: var(--text-light);
    line-height: 1.65;
    margin-bottom: 10px;
  }

  .scenario-card .scenario-tag {
    display: inline-block;
    font-size: 12px;
    font-weight: 500;
    color: var(--primary);
    background: var(--primary-light);
    border-radius: var(--radius-pill);
    padding: 3px 10px;
    margin-right: 6px;
    letter-spacing: .02em;
  }

  /* FAQ */
  .section-faq {
    background: #fff;
    padding: 80px 0;
  }

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

  .faq-item {
    border-bottom: 1px solid var(--border);
  }

  .faq-item:first-child {
    border-top: 1px solid var(--border);
  }

  .faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 4px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text);
    transition: color .25s ease;
    border: none;
    background: transparent;
    width: 100%;
    text-align: left;
    outline: none;
  }

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

  .faq-question .faq-icon {
    width: 28px;
    height: 28px;
    min-width: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-light);
    color: var(--primary);
    border-radius: 50%;
    font-size: 14px;
    transition: all .3s ease;
  }

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

  .faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height .4s ease, opacity .3s ease;
    opacity: 0;
    font-size: 0.95rem;
    color: var(--text-light);
    line-height: 1.7;
    padding: 0 4px;
  }

  .faq-item.active .faq-answer {
    max-height: 300px;
    opacity: 1;
    padding-bottom: 20px;
  }

  /* CTA */
  .section-cta {
    background: linear-gradient(135deg, var(--primary) 0%, #0B1F1C 100%);
    position: relative;
    overflow: hidden;
    text-align: center;
    padding: 96px 0;
  }

  .section-cta::before {
    content: '';
    position: absolute;
    width: 400px;
    height: 400px;
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 50%;
    top: -160px;
    left: -100px;
  }

  .section-cta::after {
    content: '';
    position: absolute;
    width: 300px;
    height: 300px;
    border: 1px solid rgba(255, 255, 255, 0.04);
    border-radius: 50%;
    bottom: -100px;
    right: -60px;
  }

  .cta-inner {
    position: relative;
    z-index: 1;
    max-width: 680px;
    margin: 0 auto;
  }

  .section-cta h2 {
    font-family: 'Noto Serif SC', serif;
    font-size: 2.5rem;
    font-weight: 800;
    color: #fff;
    letter-spacing: -0.01em;
    margin-bottom: 16px;
    line-height: 1.3;
  }

  .section-cta p {
    font-size: 1.05rem;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 36px;
    line-height: 1.7;
  }

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

  /* Footer */
  .site-footer {
    background: var(--dark);
    color: rgba(255, 255, 255, 0.75);
    padding: 80px 0 30px;
  }

  .footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.2fr;
    gap: 40px;
    margin-bottom: 60px;
  }

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

  .footer-brand p {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.55);
    line-height: 1.7;
    max-width: 300px;
  }

  .footer-col h4 {
    font-size: 1rem;
    font-weight: 600;
    color: #fff;
    margin-bottom: 16px;
    letter-spacing: .02em;
  }

  .footer-col a {
    display: block;
    font-size: 0.92rem;
    color: rgba(255, 255, 255, 0.55);
    padding: 5px 0;
    transition: all .25s ease;
  }

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

  .footer-contact {
    font-size: 0.92rem;
    color: rgba(255, 255, 255, 0.55);
    line-height: 1.8;
  }

  .footer-contact i {
    color: var(--accent);
    margin-right: 8px;
    width: 18px;
  }

  .footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: 22px;
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: space-between;
    font-size: 0.82rem;
    color: rgba(255, 255, 255, 0.35);
  }

  .footer-bottom a {
    color: rgba(255, 255, 255, 0.35);
  }

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

  @media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
      transition: none !important;
      animation: none !important;
      scroll-behavior: auto !important;
    }
  }

  @media (max-width: 1024px) {
    .header-nav {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      background: rgba(11, 31, 28, 0.97);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      gap: 2.2rem;
      opacity: 0;
      visibility: hidden;
      transition: all .45s ease;
      z-index: 999;
    }

    .header-nav.open {
      opacity: 1;
      visibility: visible;
    }

    .header-nav .header-link {
      font-size: 1.4rem;
      color: rgba(255, 255, 255, 0.9);
    }

    .header-nav .header-link::after {
      display: none;
    }

    .header-nav .header-link.active {
      color: var(--accent);
    }

    .mobile-toggle {
      display: flex;
    }

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

    .alt-grid {
      grid-template-columns: 1fr;
      gap: 36px;
    }

    .stats-grid {
      grid-template-columns: repeat(2, 1fr);
      gap: 20px;
    }

    .stat-item:nth-child(3) {
      border-left: none;
    }

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

  @media (max-width: 768px) {
    .category-hero {
      padding: 140px 0 60px;
      min-height: auto;
    }

    .category-hero h1 {
      font-size: 2.4rem;
    }

    .category-hero p {
      font-size: 1rem;
    }

    .section-capabilities,
    .section-alt,
    .section-stats,
    .section-scenarios,
    .section-faq,
    .section-cta {
      padding: 56px 0;
    }

    .section-header h2 {
      font-size: 1.7rem;
    }

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

    .capability-item {
      padding: 24px 18px;
    }

    .alt-content h2 {
      font-size: 1.5rem;
    }

    .alt-image img {
      min-height: 240px;
    }

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

    .scenario-card {
      padding: 22px;
    }

    .footer-grid {
      grid-template-columns: 1fr 1fr;
      gap: 30px;
    }
  }

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

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

    .stat-number {
      font-size: 2rem;
    }

    .stats-header h2 {
      font-size: 1.5rem;
    }

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

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

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

    .category-hero h1 {
      font-size: 2rem;
    }
  }

/* roulang page: category3 */
:root {
    --primary: #0E5048;
    --primary-dark: #0B1F1C;
    --primary-light: #E5F0EC;
    --accent: #B98A4E;
    --accent-light: #D4AF7A;
    --bg-warm: #FAF9F6;
    --text-main: #1A1A1A;
    --text-muted: #6B7280;
    --border-soft: #E8E3DA;
    --radius-card: 24px;
    --radius-btn: 12px;
    --shadow-sm: 0 4px 24px rgba(14, 80, 72, 0.06);
    --shadow-xl: 0 16px 40px rgba(14, 80, 72, 0.14);
  }

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

  html {
    scroll-behavior: smooth;
  }

  body {
    font-family: 'Inter', 'PingFang SC', system-ui, sans-serif;
    line-height: 1.75;
    color: var(--text-main);
    background: var(--bg-warm);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
  }

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

  a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s ease, opacity 0.3s ease;
  }

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

  button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
    transition: all 0.3s ease;
  }

  input, textarea {
    font-family: inherit;
    outline: none;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
  }

  h1, h2, h3, h4 {
    font-family: 'Noto Serif SC', 'Source Han Serif SC', serif;
    letter-spacing: -0.02em;
    line-height: 1.3;
  }

  .container-site {
    max-width: 80rem;
    margin: 0 auto;
    padding-left: 1rem;
    padding-right: 1rem;
  }

  @media (min-width: 640px) {
    .container-site {
      padding-left: 1.5rem;
      padding-right: 1.5rem;
    }
  }

  @media (min-width: 1024px) {
    .container-site {
      padding-left: 2rem;
      padding-right: 2rem;
    }
  }

  /* ===== Header Nav ===== */
  .site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.45);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.25);
    transition: background 0.4s ease, box-shadow 0.4s ease, border-color 0.4s ease;
  }

  .site-header.scrolled {
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    border-bottom-color: rgba(232, 227, 218, 0.8);
  }

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

  .logo-text {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: 'Noto Serif SC', serif;
    font-weight: 700;
    font-size: 1.35rem;
    letter-spacing: -0.02em;
    color: var(--primary);
    white-space: nowrap;
  }

  .logo-text i {
    color: var(--accent);
    font-size: 1.1rem;
  }

  .header-nav {
    display: flex;
    align-items: center;
    gap: 0.5rem;
  }

  .header-link {
    display: inline-block;
    padding: 0.5rem 0.9rem;
    border-radius: 999px;
    font-size: 0.875rem;
    font-weight: 500;
    color: rgba(26, 26, 26, 0.85);
    letter-spacing: 0.02em;
    transition: all 0.3s ease;
  }

  .header-link:hover {
    color: var(--primary);
    background: var(--primary-light);
  }

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

  .header-cta {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.55rem 1.2rem;
    border-radius: 12px;
    background: var(--accent);
    color: #fff;
    font-size: 0.875rem;
    font-weight: 600;
    box-shadow: 0 4px 14px rgba(185, 138, 78, 0.3);
    transition: all 0.3s ease;
  }

  .header-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(185, 138, 78, 0.4);
    color: #fff;
  }

  .mobile-toggle {
    display: none;
    width: 44px;
    height: 44px;
    border-radius: 12px;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: var(--primary);
    background: rgba(255, 255, 255, 0.6);
    border: 1px solid var(--border-soft);
  }

  .mobile-menu {
    display: none;
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    z-index: 99;
    padding: 3rem 2rem;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
  }

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

  .mobile-menu .header-link {
    font-size: 1.1rem;
    padding: 0.6rem 1.5rem;
  }

  /* ===== Hero ===== */
  .page-hero {
    position: relative;
    min-height: 72vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 140px 0 80px;
    background-image: url('/assets/images/backpic/back-1.webp');
    background-size: cover;
    background-position: center;
    isolation: isolate;
  }

  .page-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(11, 31, 28, 0.82) 0%, rgba(14, 80, 72, 0.72) 100%);
    z-index: -1;
  }

  .page-hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image: linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
      linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
    background-size: 40px 40px;
    z-index: -1;
  }

  .hero-content {
    max-width: 860px;
    margin: 0 auto;
    padding: 0 1.5rem;
  }

  .hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.35rem 1rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.8125rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    margin-bottom: 1.75rem;
  }

  .hero-title {
    font-size: 2.5rem;
    font-weight: 900;
    color: #fff;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
  }

  .hero-title .accent-text {
    color: var(--accent-light);
    position: relative;
  }

  .hero-subtitle {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.85);
    line-height: 1.8;
    max-width: 680px;
    margin: 0 auto 2.25rem;
  }

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

  .btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.875rem 1.75rem;
    border-radius: 12px;
    background: var(--accent);
    color: #fff;
    font-weight: 600;
    font-size: 0.9375rem;
    box-shadow: 0 8px 24px rgba(185, 138, 78, 0.35);
    transition: all 0.3s ease;
  }

  .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(185, 138, 78, 0.45);
    color: #fff;
    filter: brightness(1.05);
  }

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

  .btn-ghost {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.875rem 1.75rem;
    border-radius: 12px;
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.7);
    color: #fff;
    font-weight: 500;
    font-size: 0.9375rem;
    transition: all 0.3s ease;
  }

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

  /* ===== Section ===== */
  .section {
    padding: 5rem 0;
  }

  @media (min-width: 768px) {
    .section {
      padding: 6.5rem 0;
    }
  }

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

  .section-label {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 1rem;
  }

  .section-title {
    font-size: 1.75rem;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 1rem;
  }

  @media (min-width: 640px) {
    .section-title {
      font-size: 2.25rem;
    }
  }

  .section-desc {
    font-size: 1rem;
    color: var(--text-muted);
    max-width: 680px;
    line-height: 1.75;
  }

  .section-dark .section-desc {
    color: rgba(255, 255, 255, 0.7);
  }

  /* ===== Cards ===== */
  .feature-card {
    background: #fff;
    border-radius: var(--radius-card);
    border: 1px solid var(--border-soft);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: all 0.35s ease;
  }

  .feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: rgba(14, 80, 72, 0.3);
  }

  .feature-card-img {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16 / 9;
  }

  .feature-card-img.large {
    aspect-ratio: 16 / 9;
  }

  .feature-card-img.small {
    aspect-ratio: 4 / 3;
  }

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

  .feature-card:hover .feature-card-img img {
    transform: scale(1.04);
  }

  .feature-card-img::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 55%, rgba(11, 31, 28, 0.35) 100%);
    pointer-events: none;
  }

  .feature-card-body {
    padding: 1.75rem;
  }

  .feature-card-body.lg {
    padding: 2rem;
  }

  .card-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 999px;
    background: var(--primary-light);
    color: var(--primary);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    margin-bottom: 0.875rem;
  }

  .feature-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-main);
  }

  .feature-card.large-card h3 {
    font-size: 1.5rem;
  }

  .feature-card p {
    font-size: 0.9375rem;
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 1rem;
  }

  .card-link {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--primary);
    transition: gap 0.3s ease;
  }

  .card-link:hover {
    gap: 0.75rem;
    color: var(--accent);
  }

  /* ===== Stats ===== */
  .stats-strip {
    background: var(--primary);
    color: #fff;
    padding: 3.5rem 0;
    position: relative;
    overflow: hidden;
  }

  .stats-strip::before {
    content: '';
    position: absolute;
    width: 280px;
    height: 280px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.04);
    top: -100px;
    right: -80px;
    pointer-events: none;
  }

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

  @media (min-width: 768px) {
    .stats-grid {
      grid-template-columns: repeat(4, 1fr);
    }
  }

  .stat-item {
    position: relative;
  }

  .stat-item::after {
    content: '';
    position: absolute;
    right: -1rem;
    top: 15%;
    bottom: 15%;
    width: 1px;
    background: rgba(255, 255, 255, 0.15);
    display: none;
  }

  .stat-item:last-child::after {
    display: none;
  }

  @media (min-width: 768px) {
    .stat-item::after {
      display: block;
    }
  }

  .stat-number {
    font-family: 'Noto Serif SC', serif;
    font-size: 2rem;
    font-weight: 900;
    color: #fff;
    margin-bottom: 0.25rem;
  }

  .stat-label {
    font-size: 0.8125rem;
    color: rgba(255, 255, 255, 0.75);
    letter-spacing: 0.08em;
    text-transform: uppercase;
  }

  /* ===== Scenario ===== */
  .scenario-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  @media (min-width: 1024px) {
    .scenario-grid {
      grid-template-columns: 7fr 5fr;
    }
  }

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

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

  .scenario-card-large {
    display: flex;
    flex-direction: column;
  }

  @media (min-width: 768px) {
    .scenario-card-large {
      flex-direction: row;
      align-items: stretch;
    }
  }

  .scenario-card-large .scenario-img {
    width: 100%;
    aspect-ratio: 16 / 9;
  }

  @media (min-width: 768px) {
    .scenario-card-large .scenario-img {
      width: 48%;
      aspect-ratio: auto;
      min-height: 100%;
    }
  }

  .scenario-img {
    overflow: hidden;
    position: relative;
  }

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

  .scenario-body {
    padding: 2rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }

  .scenario-body h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
  }

  .scenario-body p {
    color: var(--text-muted);
    font-size: 0.9375rem;
    line-height: 1.7;
  }

  /* ===== Process ===== */
  .process-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    position: relative;
  }

  @media (min-width: 768px) {
    .process-grid {
      grid-template-columns: repeat(4, 1fr);
      gap: 1rem;
    }
  }

  .process-step {
    padding: 1.75rem;
    position: relative;
    text-align: center;
  }

  @media (min-width: 768px) {
    .process-step::after {
      content: '';
      position: absolute;
      top: 32%;
      right: -0.5rem;
      width: 1rem;
      height: 1px;
      background: rgba(185, 138, 78, 0.5);
    }
    .process-step:last-child::after {
      display: none;
    }
  }

  .process-step .step-num {
    font-family: 'Noto Serif SC', serif;
    font-size: 2.75rem;
    font-weight: 900;
    color: transparent;
    -webkit-text-stroke: 2px var(--accent);
    line-height: 1;
    margin-bottom: 0.875rem;
  }

  .process-step h4 {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
  }

  .process-step p {
    font-size: 0.875rem;
    color: var(--text-muted);
    line-height: 1.65;
  }

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

  .faq-item {
    border-bottom: 1px solid var(--border-soft);
    padding: 1.25rem 0;
  }

  .faq-item:first-child {
    border-top: 1px solid var(--border-soft);
  }

  .faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    width: 100%;
    text-align: left;
    padding: 0.5rem 0;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-main);
    line-height: 1.5;
  }

  .faq-question .faq-icon {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--primary-light);
    color: var(--primary);
    font-size: 0.875rem;
    transition: all 0.4s ease;
  }

  .faq-item.open .faq-icon i {
    transform: rotate(45deg);
  }

  .faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.4s ease;
    padding: 0 2.5rem 0 0;
  }

  .faq-answer p {
    font-size: 0.9375rem;
    color: var(--text-muted);
    line-height: 1.75;
    padding-bottom: 0.5rem;
  }

  .faq-item.open .faq-answer {
    max-height: 300px;
    padding-top: 0.25rem;
  }

  /* ===== CTA ===== */
  .cta-section {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
    color: #fff;
    padding: 5rem 0;
    position: relative;
    overflow: hidden;
  }

  .cta-section::before {
    content: '';
    position: absolute;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: rgba(185, 138, 78, 0.12);
    top: -200px;
    left: -120px;
    pointer-events: none;
  }

  .cta-inner {
    position: relative;
    text-align: center;
    max-width: 720px;
    margin: 0 auto;
  }

  .cta-inner h2 {
    font-size: 2rem;
    font-weight: 900;
    margin-bottom: 1rem;
  }

  @media (min-width: 768px) {
    .cta-inner h2 {
      font-size: 2.5rem;
    }
  }

  .cta-inner p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 1.0625rem;
    margin-bottom: 2rem;
    line-height: 1.75;
  }

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

  .cta-actions .btn-primary {
    background: var(--accent);
    color: #fff;
  }

  .cta-actions .btn-ghost {
    border-color: rgba(255, 255, 255, 0.6);
  }

  /* ===== Footer ===== */
  .site-footer {
    background: var(--primary-dark);
    color: rgba(255, 255, 255, 0.75);
    padding: 4rem 0 0;
  }

  .footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2.5rem;
    padding-bottom: 3rem;
  }

  @media (min-width: 640px) {
    .footer-grid {
      grid-template-columns: 1fr 1fr;
    }
  }

  @media (min-width: 1024px) {
    .footer-grid {
      grid-template-columns: 2fr 1fr 1fr 1.2fr;
    }
  }

  .footer-brand .logo-text {
    color: #fff;
    font-size: 1.5rem;
    margin-bottom: 1rem;
  }

  .footer-brand p {
    font-size: 0.9375rem;
    line-height: 1.75;
    color: rgba(255, 255, 255, 0.6);
    max-width: 30rem;
  }

  .footer-col h4 {
    font-family: 'Noto Serif SC', serif;
    font-size: 1.0625rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 1rem;
  }

  .footer-col a {
    display: block;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9375rem;
    padding: 0.325rem 0;
    transition: color 0.3s ease, padding-left 0.3s ease;
  }

  .footer-col a:hover {
    color: var(--accent-light);
    padding-left: 0.35rem;
  }

  .footer-contact {
    display: flex;
    flex-direction: column;
    gap: 0.625rem;
  }

  .footer-contact div {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    font-size: 0.9375rem;
    color: rgba(255, 255, 255, 0.6);
  }

  .footer-contact i {
    color: var(--accent);
    width: 1rem;
  }

  .footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 1.75rem 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    text-align: center;
    font-size: 0.8125rem;
    color: rgba(255, 255, 255, 0.5);
  }

  @media (min-width: 768px) {
    .footer-bottom {
      flex-direction: row;
      justify-content: space-between;
      text-align: left;
    }
  }

  .footer-bottom a {
    color: rgba(255, 255, 255, 0.5);
  }

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

  /* ===== Focus accessibility ===== */
  a:focus-visible,
  button:focus-visible,
  input:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
  }

  /* ===== Responsive ===== */
  @media (max-width: 640px) {
    .header-nav {
      display: none;
    }
    .header-cta {
      display: none;
    }
    .mobile-toggle {
      display: flex;
    }
    .hero-title {
      font-size: 2.1rem;
    }
    .hero-subtitle {
      font-size: 1rem;
    }
    .section-title {
      font-size: 1.5rem;
    }
    .feature-card-body.lg {
      padding: 1.5rem;
    }
    .scenario-body {
      padding: 1.5rem;
    }
  }

  @media (min-width: 641px) and (max-width: 1024px) {
    .header-cta {
      padding: 0.5rem 1rem;
      font-size: 0.8125rem;
    }
    .header-link {
      padding: 0.5rem 0.6rem;
      font-size: 0.8125rem;
    }
  }

  @media (min-width: 640px) {
    .mobile-toggle,
    .mobile-menu {
      display: none !important;
    }
  }

  /* ===== Reduced motion ===== */
  @media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
      animation-duration: 0.01ms !important;
      transition-duration: 0.01ms !important;
    }
    html {
      scroll-behavior: auto;
    }
  }