/* roulang page: index */
:root {
    --color-primary: #0F766E;
    --color-primary-dark: #0B4F49;
    --color-primary-light: #E8F0EE;
    --color-gold: #C9A96E;
    --color-gold-dark: #A8894E;
    --color-gold-light: #ECDFC4;
    --color-bg: #FAF7F2;
    --color-bg-gray: #F2EFEB;
    --color-bg-dark: #152422;
    --color-card: #FFFFFF;
    --color-border: #E2DED6;
    --color-success: #4A7C59;
    --color-warning: #C25E4A;
    --color-text-body: #3D4A47;
    --color-text-muted: #6E7B78;
    --radius-lg: 12px;
    --radius-md: 8px;
    --radius-full: 999px;
    --shadow-card: 0 1px 3px rgba(21,36,34,0.06);
    --shadow-hover: 0 8px 24px rgba(21,36,34,0.10);
  }

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

  html {
    scroll-behavior: smooth;
  }

  body {
    font-family: "Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
    background-color: #FAF7F2;
    color: #3D4A47;
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
  }

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

  a {
    text-decoration: none;
    color: inherit;
    transition: all 0.2s ease;
  }

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

  .container-site {
    max-width: 1200px;
    margin: 0 auto;
    padding-left: 16px;
    padding-right: 16px;
  }

  @media (min-width: 768px) {
    .container-site {
      padding-left: 32px;
      padding-right: 32px;
    }
  }

  /* ===== Header / Nav ===== */
  .site-header {
    padding-top: 12px;
    position: relative;
    z-index: 50;
  }

  .nav-panel {
    background: #FFFFFF;
    border: 1px solid #E2DED6;
    border-radius: 16px;
    box-shadow: 0 1px 3px rgba(21,36,34,0.06);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 16px;
    gap: 12px;
    flex-wrap: wrap;
  }

  .brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 18px;
    font-weight: 700;
    color: #0F766E;
    white-space: nowrap;
  }

  .brand-dot {
    width: 8px;
    height: 8px;
    background: #C9A96E;
    border-radius: 50%;
    flex-shrink: 0;
  }

  .nav-cats {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
  }

  .nav-cat {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    height: 40px;
    padding: 0 14px;
    background: #FFFFFF;
    border: 1px solid #E2DED6;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    color: #3D4A47;
    transition: all 0.2s ease;
  }

  .nav-cat:hover {
    background: #E8F0EE;
    color: #0F766E;
    border-color: rgba(15,118,110,0.3);
    transform: translateY(-1px);
  }

  .nav-cat.active {
    border-bottom: 2px solid #C9A96E;
    color: #0F766E;
    font-weight: 600;
  }

  .cat-icon {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #C9A96E;
    display: inline-block;
    flex-shrink: 0;
  }

  .btn-nav {
    background: #0F766E;
    color: #FFFFFF;
    border-radius: 999px;
    padding: 8px 20px;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.2s ease;
    white-space: nowrap;
  }

  .btn-nav:hover {
    background: #0B4F49;
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(15,118,110,0.25);
  }

  .nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    padding: 8px;
    border: 1px solid #E2DED6;
    border-radius: 8px;
    background: #FFFFFF;
  }

  .nav-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    background: #0F766E;
    border-radius: 2px;
    margin: 0 auto;
    transition: all 0.2s ease;
  }

  .nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle.open span:nth-child(2) { opacity: 0; }
  .nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

  @media (max-width: 767px) {
    .nav-toggle { display: flex; }
    .nav-cats {
      display: none;
      width: 100%;
      order: 3;
      padding-top: 8px;
      border-top: 1px solid #F2EFEB;
    }
    .nav-cats.open { display: flex; }
    .btn-nav { display: none; }
    .nav-panel { padding: 10px 12px; }
  }

  /* ===== Buttons ===== */
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    padding: 12px 28px;
    font-size: 15px;
    font-weight: 600;
    transition: all 0.2s ease;
    line-height: 1.4;
    border: none;
  }

  .btn-primary {
    background: #0F766E;
    color: #FFFFFF !important;
    box-shadow: 0 2px 8px rgba(15,118,110,0.2);
  }

  .btn-primary:hover {
    background: #0B4F49;
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(15,118,110,0.3);
  }

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

  .btn-outline {
    background: transparent;
    border: 1.5px solid #0F766E;
    color: #0F766E !important;
  }

  .btn-outline:hover {
    background: #E8F0EE;
    transform: translateY(-2px);
  }

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

  .btn-link {
    color: #0F766E;
    font-size: 14px;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 4px;
  }

  .btn-link .arrow {
    display: inline-block;
    transition: margin-left 0.2s ease;
  }

  .btn-link:hover .arrow {
    margin-left: 4px;
  }

  .btn-link:hover {
    color: #0B4F49;
  }

  /* ===== Hero ===== */
  .hero {
    position: relative;
    padding: 64px 0 72px;
    background: #FAF7F2;
    overflow: hidden;
  }

  .hero::before {
    content: '';
    position: absolute;
    right: -60px;
    bottom: -40px;
    width: 240px;
    height: 240px;
    background: #ECDFC4;
    border-radius: 50%;
    opacity: 0.5;
    z-index: 0;
  }

  .hero-inner {
    display: grid;
    grid-template-columns: 7fr 5fr;
    gap: 48px;
    align-items: center;
    position: relative;
    z-index: 1;
  }

  .hero h1 {
    font-size: clamp(32px, 4vw, 44px);
    font-weight: 700;
    line-height: 1.25;
    color: #152422;
    margin-bottom: 18px;
  }

  .hero-sub {
    font-size: 16px;
    line-height: 1.75;
    color: #6E7B78;
    margin-bottom: 32px;
    max-width: 460px;
  }

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

  .hero-img-wrap {
    position: relative;
  }

  .hero-img-frame {
    position: absolute;
    top: 8px;
    left: 8px;
    width: 100%;
    height: 100%;
    border: 1.5px solid #C9A96E;
    z-index: 0;
    pointer-events: none;
  }

  .hero-img-wrap img {
    position: relative;
    z-index: 1;
    border-radius: 0;
    width: 100%;
    height: auto;
    object-fit: cover;
    box-shadow: 0 8px 32px rgba(21,36,34,0.10);
  }

  @media (max-width: 1023px) {
    .hero-inner {
      grid-template-columns: 1fr;
      gap: 32px;
    }
    .hero-img-wrap {
      max-width: 560px;
    }
  }

  @media (max-width: 767px) {
    .hero { padding: 40px 0 48px; }
    .hero-btns { flex-direction: column; }
    .hero-btns .btn { width: 100%; }
  }

  /* ===== Section Titles ===== */
  .section-title {
    font-size: 28px;
    font-weight: 600;
    line-height: 1.3;
    color: #152422;
    margin-bottom: 12px;
    padding-left: 18px;
    position: relative;
  }

  .section-title::before {
    content: '';
    position: absolute;
    left: 0;
    top: 6px;
    width: 8px;
    height: 24px;
    background: #C9A96E;
    border-radius: 2px;
  }

  .section-title.light {
    color: #FFFFFF;
  }

  .section-sub {
    font-size: 15px;
    color: #6E7B78;
    margin-bottom: 32px;
    max-width: 560px;
  }

  /* ===== Steps ===== */
  .steps-section {
    padding: 72px 0;
    background: #FAF7F2;
  }

  .steps-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    position: relative;
  }

  .step-card {
    background: #FFFFFF;
    border: 1px solid #E2DED6;
    border-radius: 12px;
    box-shadow: 0 1px 3px rgba(21,36,34,0.06);
    padding: 28px 24px;
    position: relative;
    transition: all 0.2s ease;
  }

  .step-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(21,36,34,0.10);
  }

  .step-num {
    font-size: 48px;
    font-weight: 700;
    color: transparent;
    -webkit-text-stroke: 1px #0F766E;
    line-height: 1;
    margin-bottom: 16px;
  }

  .step-card h3 {
    font-size: 18px;
    font-weight: 600;
    color: #152422;
    margin-bottom: 10px;
  }

  .step-card p {
    font-size: 14px;
    color: #6E7B78;
    line-height: 1.7;
  }

  .step-arrow {
    position: absolute;
    top: 50%;
    right: -20px;
    transform: translateY(-50%);
    width: 24px;
    height: 1px;
    background: #E2DED6;
    z-index: 2;
  }

  .step-arrow::after {
    content: '';
    position: absolute;
    right: 0;
    top: -3px;
    border-left: 6px solid #E2DED6;
    border-top: 3.5px solid transparent;
    border-bottom: 3.5px solid transparent;
  }

  @media (max-width: 1023px) {
    .steps-grid { grid-template-columns: 1fr; }
    .step-arrow { display: none; }
  }

  /* ===== Cases ===== */
  .cases-section {
    background: #152422;
    padding: 72px 0;
  }

  .cases-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-top: 36px;
  }

  .case-card {
    background: #152422;
    border: 1px solid rgba(255,255,255,0.10);
    border-radius: 12px;
    padding: 20px;
    transition: all 0.2s ease;
  }

  .case-card:hover {
    border-color: rgba(201,169,110,0.4);
    transform: translateY(-3px);
  }

  .case-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 16px;
  }

  .case-tag {
    display: inline-block;
    background: rgba(201,169,110,0.15);
    color: #C9A96E;
    font-size: 13px;
    font-weight: 500;
    padding: 3px 12px;
    border-radius: 999px;
    margin-bottom: 12px;
  }

  .case-statement {
    color: #C8D0CD;
    font-size: 14px;
    line-height: 1.65;
    margin-bottom: 14px;
  }

  .case-stat {
    font-size: 48px;
    font-weight: 700;
    color: #C9A96E;
    letter-spacing: -0.02em;
    line-height: 1;
  }

  .case-stat-label {
    color: #8AA09A;
    font-size: 13px;
    margin-top: 4px;
  }

  .case-divider {
    height: 1px;
    background: rgba(255,255,255,0.12);
    margin-top: 20px;
  }

  @media (max-width: 767px) {
    .cases-grid { grid-template-columns: 1fr; }
  }

  /* ===== News / CMS ===== */
  .news-section {
    background: #F2EFEB;
    padding: 72px 0;
  }

  .news-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: 36px;
  }

  .news-card {
    background: #FFFFFF;
    border: 1px solid #E2DED6;
    border-radius: 12px;
    box-shadow: 0 1px 3px rgba(21,36,34,0.06);
    padding: 20px;
    display: flex;
    flex-direction: column;
    height: 100%;
    transition: all 0.2s ease;
  }

  .news-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(21,36,34,0.10);
  }

  .news-badge {
    display: inline-block;
    background: #ECDFC4;
    color: #A8894E;
    font-size: 13px;
    font-weight: 500;
    padding: 2px 10px;
    border-radius: 4px;
    margin-bottom: 12px;
    align-self: flex-start;
  }

  .news-card h3 {
    font-size: 16px;
    font-weight: 600;
    color: #152422;
    line-height: 1.45;
    margin-bottom: 8px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .news-card .news-excerpt {
    font-size: 14px;
    color: #6E7B78;
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 14px;
    flex-grow: 1;
  }

  .news-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: auto;
    padding-top: 12px;
    border-top: 1px solid #F2EFEB;
  }

  .news-time {
    font-size: 13px;
    color: #9AA5A1;
  }

  .news-link {
    font-size: 13px;
    color: #0F766E;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 3px;
    transition: all 0.2s ease;
  }

  .news-link:hover {
    color: #0B4F49;
  }

  .news-link .arrow {
    transition: margin-left 0.2s ease;
  }

  .news-link:hover .arrow {
    margin-left: 3px;
  }

  .news-empty {
    text-align: center;
    padding: 48px 0;
    color: #6E7B78;
  }

  .news-empty-icon {
    width: 36px;
    height: 36px;
    border: 2px solid #E2DED6;
    border-radius: 50%;
    margin: 0 auto 12px;
    position: relative;
  }

  .news-empty-icon::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 8px;
    height: 8px;
    border: 2px solid #C9A96E;
    border-radius: 50%;
  }

  @media (max-width: 1023px) {
    .news-grid { grid-template-columns: repeat(2, 1fr); }
  }

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

  /* ===== FAQ ===== */
  .faq-section {
    padding: 72px 0;
    background: #FAF7F2;
  }

  .faq-layout {
    display: grid;
    grid-template-columns: 4fr 8fr;
    gap: 40px;
  }

  .faq-intro {
    font-size: 15px;
    color: #6E7B78;
    line-height: 1.7;
    margin: 12px 0 20px;
  }

  .faq-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
  }

  .faq-item {
    background: #FFFFFF;
    border: 1px solid #E2DED6;
    border-radius: 8px;
    padding: 0 16px;
    transition: all 0.2s ease;
    overflow: hidden;
  }

  .faq-item.active {
    border-left: 3px solid #C9A96E;
  }

  .faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 14px 0;
    font-size: 16px;
    font-weight: 500;
    color: #152422;
    background: transparent;
    text-align: left;
  }

  .faq-question:hover {
    color: #0F766E;
  }

  .faq-icon {
    width: 20px;
    height: 20px;
    position: relative;
    flex-shrink: 0;
    margin-left: 12px;
    transition: transform 0.3s ease;
  }

  .faq-icon::before,
  .faq-icon::after {
    content: '';
    position: absolute;
    background: #C9A96E;
    border-radius: 1px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
  }

  .faq-icon::before {
    width: 10px;
    height: 2px;
  }

  .faq-icon::after {
    width: 2px;
    height: 10px;
    transition: opacity 0.2s ease;
  }

  .faq-item.active .faq-icon {
    transform: rotate(90deg);
  }

  .faq-item.active .faq-icon::after {
    opacity: 0;
  }

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

  .faq-answer-inner {
    padding: 0 0 16px;
    font-size: 14px;
    color: #6E7B78;
    line-height: 1.7;
  }

  @media (max-width: 767px) {
    .faq-layout { grid-template-columns: 1fr; }
  }

  /* ===== CTA ===== */
  .cta-section {
    padding: 96px 0;
    background: #FAF7F2;
    text-align: center;
  }

  .cta-title {
    font-size: 26px;
    font-weight: 700;
    color: #152422;
    margin-bottom: 12px;
  }

  .cta-desc {
    font-size: 14px;
    color: #6E7B78;
    max-width: 440px;
    margin: 0 auto 32px;
  }

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

  @media (max-width: 640px) {
    .cta-btns { flex-direction: column; }
    .cta-btns .btn { width: 100%; }
  }

  /* ===== Footer ===== */
  .site-footer {
    background: #152422;
    color: #C8D0CD;
    padding: 56px 0 0;
  }

  .footer-grid {
    display: grid;
    grid-template-columns: 4fr 3fr 3fr;
    gap: 40px;
    padding-bottom: 40px;
  }

  .footer-brand {
    font-size: 18px;
    font-weight: 700;
    color: #FFFFFF;
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 14px;
  }

  .footer-brand .brand-dot {
    width: 8px;
    height: 8px;
    background: #C9A96E;
    border-radius: 50%;
  }

  .footer-desc {
    font-size: 14px;
    color: #8AA09A;
    line-height: 1.7;
    max-width: 300px;
  }

  .footer-col-title {
    font-size: 15px;
    font-weight: 600;
    color: #FFFFFF;
    margin-bottom: 16px;
  }

  .footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
  }

  .footer-links a {
    font-size: 14px;
    color: #8AA09A;
    transition: color 0.2s ease;
  }

  .footer-links a:hover {
    color: #C9A96E;
  }

  .footer-contact {
    font-size: 14px;
    color: #8AA09A;
    line-height: 1.7;
    margin-bottom: 16px;
  }

  .footer-btn {
    display: inline-block;
    background: #C9A96E;
    color: #152422;
    border-radius: 999px;
    padding: 8px 20px;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.2s ease;
  }

  .footer-btn:hover {
    background: #A8894E;
    transform: translateY(-2px);
    color: #FFFFFF;
  }

  .footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.08);
    padding: 20px 0;
    text-align: center;
    font-size: 13px;
    color: #6E7B78;
  }

  @media (max-width: 767px) {
    .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  }

/* roulang page: category1 */
:root {
      --primary: #0F766E;
      --primary-dark: #0B4F49;
      --primary-light: #E8F0EE;
      --gold: #C9A96E;
      --gold-dark: #A8894E;
      --gold-light: #ECDFC4;
      --bg-paper: #FAF7F2;
      --bg-gray: #F2EFEB;
      --bg-dark: #152422;
      --card-white: #FFFFFF;
      --border-light: #E2DED6;
      --text-main: #3D4A47;
      --text-weak: #6E7B78;
      --text-light: #C8D0CD;
      --green: #4A7C59;
      --terracotta: #C25E4A;
      --shadow-sm: 0 1px 3px rgba(21, 36, 34, 0.06);
      --shadow-hover: 0 8px 24px rgba(21, 36, 34, 0.10);
      --radius-card: 12px;
      --radius-btn: 999px;
      --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: var(--font-sans);
      background: var(--bg-paper);
      color: var(--text-main);
      line-height: 1.75;
      font-size: 16px;
    }

    a {
      text-decoration: none;
      color: inherit;
      transition: all 0.2s ease;
    }

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

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

    .container-site {
      max-width: 1200px;
      margin: 0 auto;
      padding-left: 16px;
      padding-right: 16px;
    }

    @media (min-width: 768px) {
      .container-site {
        padding-left: 32px;
        padding-right: 32px;
      }
    }

    /* 头部导航 */
    .site-header {
      padding-top: 12px;
      position: sticky;
      top: 0;
      z-index: 50;
      background: transparent;
    }

    .nav-panel {
      display: flex;
      align-items: center;
      background: var(--bg-paper);
      border: 1px solid var(--border-light);
      border-radius: 16px;
      box-shadow: var(--shadow-sm);
      padding: 10px 16px;
      gap: 16px;
      flex-wrap: wrap;
    }

    .brand {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 18px;
      font-weight: 700;
      color: var(--primary);
      white-space: nowrap;
    }

    .brand-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--gold);
      flex-shrink: 0;
    }

    .nav-cats {
      display: flex;
      align-items: center;
      gap: 8px;
      flex: 1;
      flex-wrap: wrap;
    }

    .nav-cat {
      display: flex;
      align-items: center;
      gap: 8px;
      height: 40px;
      padding: 0 14px;
      background: var(--card-white);
      border: 1px solid var(--border-light);
      border-radius: 8px;
      font-size: 14px;
      font-weight: 500;
      color: var(--text-main);
      position: relative;
    }

    .nav-cat:hover {
      background: var(--primary-light);
      color: var(--primary);
      border-color: rgba(15, 118, 110, 0.3);
    }

    .nav-cat.active {
      border-bottom: 2px solid var(--gold);
      color: var(--primary);
      background: var(--primary-light);
    }

    .cat-icon {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      border: 2px solid var(--primary);
      display: inline-block;
      flex-shrink: 0;
    }

    .btn-nav {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: var(--primary);
      color: #fff;
      font-size: 14px;
      font-weight: 600;
      padding: 10px 20px;
      border-radius: var(--radius-btn);
      white-space: nowrap;
      transition: all 0.2s ease;
    }

    .btn-nav:hover {
      background: var(--primary-dark);
      transform: translateY(-2px);
    }

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

    .nav-toggle {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      padding: 8px;
      flex-direction: column;
      gap: 5px;
      align-items: center;
      justify-content: center;
    }

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

    @media (max-width: 767px) {
      .nav-cats {
        flex-basis: 100%;
        order: 3;
      }
      .nav-cat {
        flex: 1 1 auto;
      }
      .nav-toggle {
        display: inline-flex;
        margin-left: auto;
      }
      .nav-cats:not(.open) {
        display: none;
      }
      .nav-cats.open {
        display: flex;
        flex-wrap: wrap;
      }
      .btn-nav {
        display: none;
      }
    }

    /* 分类页 Hero 横幅 */
    .cat-hero {
      position: relative;
      min-height: 220px;
      display: flex;
      align-items: center;
      justify-content: center;
      text-align: center;
      overflow: hidden;
      margin-top: 16px;
      border-radius: 16px;
    }

    .cat-hero-bg {
      position: absolute;
      inset: 0;
      background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
    }

    .cat-hero-bg::after {
      content: '';
      position: absolute;
      inset: 0;
      background: rgba(21, 36, 34, 0.55);
    }

    .cat-hero-content {
      position: relative;
      z-index: 2;
      padding: 48px 24px;
    }

    .cat-hero-content h1 {
      font-size: clamp(28px, 4vw, 40px);
      font-weight: 700;
      color: #fff;
      line-height: 1.25;
      margin-bottom: 12px;
      letter-spacing: 0.01em;
    }

    .cat-hero-content p {
      font-size: 14px;
      color: var(--text-light);
      max-width: 560px;
      margin: 0 auto;
      line-height: 1.7;
    }

    /* 面包屑 */
    .breadcrumb {
      padding: 16px 0;
      font-size: 13px;
      color: var(--text-weak);
      display: flex;
      align-items: center;
      gap: 6px;
      flex-wrap: wrap;
    }

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

    .breadcrumb span.sep {
      color: var(--text-weak);
    }

    .breadcrumb .current {
      color: var(--primary);
      font-weight: 500;
    }

    /* 分类主体两栏 */
    .cat-body {
      padding: 32px 0 64px;
    }

    .cat-layout {
      display: grid;
      grid-template-columns: 1fr;
      gap: 32px;
    }

    @media (min-width: 1024px) {
      .cat-layout {
        grid-template-columns: 8fr 4fr;
        gap: 40px;
      }
    }

    .cat-main {
      display: flex;
      flex-direction: column;
      gap: 40px;
    }

    .content-block {
      background: var(--card-white);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-card);
      padding: 28px;
      box-shadow: var(--shadow-sm);
      transition: box-shadow 0.2s ease;
    }

    .content-block:hover {
      box-shadow: var(--shadow-hover);
    }

    .content-block h3 {
      font-size: 22px;
      font-weight: 600;
      color: var(--bg-dark);
      margin-bottom: 14px;
      line-height: 1.4;
      position: relative;
      padding-left: 16px;
    }

    .content-block h3::before {
      content: '';
      position: absolute;
      left: 0;
      top: 6px;
      width: 3px;
      height: 20px;
      background: var(--gold);
      border-radius: 2px;
    }

    .content-block p {
      font-size: 15px;
      line-height: 1.8;
      color: var(--text-main);
      margin-bottom: 16px;
    }

    .content-block img {
      border-radius: 8px;
      margin-top: 12px;
      width: 100%;
      object-fit: cover;
      border: 1px solid var(--border-light);
    }

    /* 侧栏 */
    .cat-sidebar {
      display: flex;
      flex-direction: column;
      gap: 24px;
    }

    .side-card {
      background: var(--card-white);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-card);
      padding: 24px;
      box-shadow: var(--shadow-sm);
    }

    .side-card h3 {
      font-size: 16px;
      font-weight: 600;
      color: var(--bg-dark);
      margin-bottom: 14px;
      padding-bottom: 10px;
      border-bottom: 1px solid var(--border-light);
      position: relative;
    }

    .side-card h3::after {
      content: '';
      position: absolute;
      bottom: -1px;
      left: 0;
      width: 32px;
      height: 2px;
      background: var(--gold);
    }

    .side-card p {
      font-size: 14px;
      line-height: 1.8;
      color: var(--text-weak);
    }

    .side-links {
      list-style: none;
      padding: 0;
    }

    .side-links li {
      margin-bottom: 8px;
    }

    .side-links a {
      font-size: 14px;
      color: var(--text-main);
      display: flex;
      align-items: center;
      gap: 8px;
      padding: 6px 0;
      border-bottom: 1px solid #f0ece6;
      transition: all 0.2s ease;
    }

    .side-links a::before {
      content: '';
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--gold);
      flex-shrink: 0;
    }

    .side-links a:hover {
      color: var(--primary);
      padding-left: 4px;
    }

    /* FAQ */
    .faq-section {
      background: var(--bg-gray);
      padding: 64px 0;
    }

    .faq-layout {
      display: grid;
      grid-template-columns: 1fr;
      gap: 32px;
    }

    @media (min-width: 1024px) {
      .faq-layout {
        grid-template-columns: 4fr 8fr;
        gap: 48px;
      }
    }

    .faq-left h2 {
      font-size: 28px;
      font-weight: 600;
      color: var(--bg-dark);
      line-height: 1.3;
      margin-bottom: 14px;
      padding-left: 16px;
      position: relative;
    }

    .faq-left h2::before {
      content: '';
      position: absolute;
      left: 0;
      top: 4px;
      width: 8px;
      height: 24px;
      background: var(--gold);
      border-radius: 2px;
    }

    .faq-left p {
      font-size: 14px;
      color: var(--text-weak);
      margin-bottom: 20px;
      line-height: 1.7;
    }

    .btn-secondary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: transparent;
      border: 1.5px solid var(--primary);
      color: var(--primary);
      font-size: 14px;
      font-weight: 600;
      padding: 10px 24px;
      border-radius: var(--radius-btn);
      transition: all 0.2s ease;
    }

    .btn-secondary:hover {
      background: var(--primary-light);
      transform: translateY(-2px);
    }

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

    .faq-right {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .faq-item {
      background: var(--bg-paper);
      border: 1px solid var(--border-light);
      border-radius: 8px;
      padding: 16px;
      transition: border-color 0.2s ease;
    }

    .faq-item.open {
      border-color: var(--gold);
    }

    .faq-item.open .faq-question {
      border-left: 3px solid var(--gold);
      padding-left: 12px;
    }

    .faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      font-size: 16px;
      font-weight: 500;
      color: var(--bg-dark);
      padding-left: 4px;
      border-left: 3px solid transparent;
      transition: border-color 0.2s ease;
    }

    .faq-arrow {
      color: var(--gold);
      font-size: 18px;
      transition: transform 0.3s ease;
      flex-shrink: 0;
      margin-left: 12px;
    }

    .faq-item.open .faq-arrow {
      transform: rotate(90deg);
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease;
      font-size: 14px;
      color: var(--text-weak);
      line-height: 1.75;
    }

    .faq-item.open .faq-answer {
      max-height: 320px;
      padding-top: 12px;
    }

    /* CTA 联系区域 */
    .cta-section {
      padding: 64px 0;
      background: var(--bg-paper);
    }

    .cta-wrap {
      background: var(--card-white);
      border: 1px solid var(--border-light);
      border-radius: 16px;
      padding: 40px 32px;
      display: grid;
      grid-template-columns: 1fr;
      gap: 32px;
      box-shadow: var(--shadow-sm);
    }

    @media (min-width: 1024px) {
      .cta-wrap {
        grid-template-columns: 5fr 7fr;
        padding: 48px 56px;
      }
    }

    .cta-left h2 {
      font-size: 28px;
      font-weight: 700;
      color: var(--bg-dark);
      line-height: 1.3;
      margin-bottom: 14px;
    }

    .cta-left p {
      font-size: 14px;
      color: var(--text-weak);
      line-height: 1.7;
      margin-bottom: 24px;
    }

    .cta-buttons {
      display: flex;
      gap: 12px;
      flex-wrap: wrap;
    }

    .btn-primary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: var(--primary);
      color: #fff;
      font-size: 15px;
      font-weight: 600;
      padding: 12px 28px;
      border-radius: var(--radius-btn);
      border: none;
      cursor: pointer;
      transition: all 0.2s ease;
    }

    .btn-primary:hover {
      background: var(--primary-dark);
      transform: translateY(-2px);
      box-shadow: 0 6px 16px rgba(15, 118, 110, 0.2);
    }

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

    .contact-form {
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .contact-form input {
      width: 100%;
      padding: 12px 16px;
      border: 1px solid var(--border-light);
      border-radius: 8px;
      font-size: 14px;
      background: var(--bg-paper);
      transition: border-color 0.2s ease;
    }

    .contact-form input:focus {
      outline: none;
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(15, 118, 110, 0.08);
    }

    .contact-form input::placeholder {
      color: #b0b8b5;
    }

    .contact-form .form-tip {
      font-size: 13px;
      color: var(--text-weak);
    }

    /* 页脚 */
    .site-footer {
      background: var(--bg-dark);
      color: var(--text-light);
      padding: 48px 0 24px;
      margin-top: 0;
    }

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

    @media (min-width: 768px) {
      .footer-grid {
        grid-template-columns: repeat(3, 1fr);
      }
    }

    .footer-brand {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 18px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 12px;
    }

    .footer-desc {
      font-size: 14px;
      line-height: 1.75;
      color: rgba(255, 255, 255, 0.65);
      max-width: 320px;
    }

    .footer-col-title {
      font-size: 15px;
      font-weight: 600;
      color: #fff;
      margin-bottom: 14px;
    }

    .footer-links {
      list-style: none;
      padding: 0;
    }

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

    .footer-links a {
      font-size: 14px;
      color: rgba(255, 255, 255, 0.65);
      transition: color 0.2s ease;
    }

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

    .footer-contact {
      font-size: 14px;
      line-height: 1.7;
      color: rgba(255, 255, 255, 0.65);
      margin-bottom: 16px;
    }

    .footer-btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: var(--primary);
      color: #fff;
      font-size: 14px;
      font-weight: 600;
      padding: 10px 22px;
      border-radius: var(--radius-btn);
      transition: all 0.2s ease;
    }

    .footer-btn:hover {
      background: var(--primary-dark);
      transform: translateY(-2px);
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 20px;
      text-align: center;
      font-size: 13px;
      color: rgba(255, 255, 255, 0.4);
    }

    /* 响应式细节 */
    @media (max-width: 767px) {
      .content-block {
        padding: 20px;
      }
      .content-block h3 {
        font-size: 18px;
      }
      .cta-wrap {
        padding: 32px 20px;
      }
      .faq-section {
        padding: 48px 0;
      }
      .cat-hero {
        min-height: 180px;
      }
      .cat-hero-content {
        padding: 32px 16px;
      }
    }

    @media (max-width: 520px) {
      .btn-primary, .btn-secondary {
        width: 100%;
      }
      .cta-buttons {
        flex-direction: column;
      }
      .nav-cat {
        font-size: 13px;
        padding: 0 10px;
      }
    }

/* roulang page: article */
:root {
  --color-primary: #0F766E;
  --color-primary-dark: #0B4F49;
  --color-primary-light: #E8F0EE;
  --color-gold: #C9A96E;
  --color-gold-dark: #A8894E;
  --color-gold-light: #ECDFC4;
  --color-paper: #FAF7F2;
  --color-surface: #F2EFEB;
  --color-ink: #152422;
  --color-body: #3D4A47;
  --color-muted: #6E7B78;
  --color-line: #E2DED6;
  --color-positive: #4A7C59;
  --color-warning: #C25E4A;
  --radius-card: 12px;
  --radius-small: 8px;
  --radius-full: 999px;
  --shadow-card: 0 1px 3px rgba(21,36,34,0.06);
  --shadow-hover: 0 8px 24px rgba(21,36,34,0.10);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--color-paper);
  color: var(--color-body);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
  transition: all 0.2s ease;
}

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

button {
  font-family: inherit;
  cursor: pointer;
}

.container-site {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding-left: 16px;
  padding-right: 16px;
}

@media (min-width: 768px) {
  .container-site {
    padding-left: 32px;
    padding-right: 32px;
  }
}

/* 导航 */
.site-header {
  position: relative;
  padding: 12px 0 0;
  z-index: 50;
}

.nav-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  background: var(--color-paper);
  border: 1px solid var(--color-line);
  border-radius: 16px;
  padding: 10px 14px;
  box-shadow: var(--shadow-card);
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 18px;
  font-weight: 700;
  color: var(--color-primary);
  white-space: nowrap;
}

.brand-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-gold);
  display: inline-block;
  flex-shrink: 0;
}

.nav-cats {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.nav-cat {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 40px;
  padding: 0 14px;
  border-radius: 8px;
  background: #fff;
  border: 1px solid var(--color-line);
  font-size: 14px;
  font-weight: 500;
  color: var(--color-body);
  transition: all 0.2s ease;
}

.nav-cat .cat-icon {
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--color-gold);
  flex-shrink: 0;
  display: inline-block;
}

.nav-cat:hover {
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-color: rgba(15, 118, 110, 0.3);
}

.nav-cat.active {
  color: var(--color-primary);
  border-bottom: 2px solid var(--color-gold);
  padding-bottom: 0;
}

.btn-nav {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  padding: 10px 22px;
  border-radius: 999px;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.btn-nav:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
}

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

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  border-radius: 8px;
  border: 1px solid var(--color-line);
  background: #fff;
  padding: 8px;
}

.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--color-primary);
  border-radius: 2px;
  transition: all 0.2s ease;
}

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

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

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

@media (max-width: 767px) {
  .nav-cats {
    display: none;
    flex-direction: column;
    width: 100%;
    padding-top: 8px;
  }
  .nav-cats.open {
    display: flex;
  }
  .nav-toggle {
    display: inline-flex;
  }
  .btn-nav {
    display: none;
  }
  .nav-cat {
    width: 100%;
  }
}

/* 按钮 */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--color-primary);
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  padding: 13px 26px;
  border-radius: 999px;
  border: 1.5px solid transparent;
  transition: all 0.2s ease;
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
}

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

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: transparent;
  color: var(--color-primary);
  border: 1.5px solid var(--color-primary);
  font-size: 15px;
  font-weight: 600;
  padding: 12px 25px;
  border-radius: 999px;
  transition: all 0.2s ease;
}

.btn-secondary:hover {
  background: var(--color-primary-light);
  transform: translateY(-2px);
}

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

/* 页面横幅 */
.page-banner {
  position: relative;
  height: 220px;
  overflow: hidden;
  margin-top: 0;
}

.banner-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.banner-overlay {
  position: absolute;
  inset: 0;
  background: rgba(21, 36, 34, 0.58);
}

.banner-content {
  position: relative;
  z-index: 2;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.banner-cat {
  display: inline-block;
  background: var(--color-gold-light);
  color: var(--color-gold-dark);
  font-size: 13px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 12px;
  width: fit-content;
}

.banner-title {
  color: #fff;
  font-size: 30px;
  font-weight: 700;
  line-height: 1.3;
}

.banner-desc {
  color: rgba(255, 255, 255, 0.9);
  font-size: 14px;
  margin-top: 8px;
}

@media (min-width: 768px) {
  .banner-title {
    font-size: 36px;
  }
}

/* 面包屑 */
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  font-size: 13px;
  color: var(--color-muted);
  padding: 20px 0 4px;
}

.breadcrumb a {
  color: var(--color-muted);
  transition: color 0.2s ease;
}

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

.breadcrumb .sep {
  color: #b8b2a6;
}

.breadcrumb .current {
  color: var(--color-primary);
  font-weight: 500;
}

/* 文章主体 */
.article-section {
  padding: 24px 0 48px;
}

.article-container {
  max-width: 720px;
  margin: 0 auto;
}

.article-header {
  margin-bottom: 24px;
}

.article-title {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-ink);
  margin-bottom: 16px;
  letter-spacing: -0.01em;
}

.article-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: var(--color-muted);
}

.article-cat {
  display: inline-block;
  background: var(--color-gold-light);
  color: var(--color-gold-dark);
  font-size: 13px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 999px;
}

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

.article-divider {
  height: 1px;
  background: var(--color-line);
  margin: 28px 0 30px;
}

/* 文章正文 */
.article-content {
  color: var(--color-body);
  font-size: 16px;
  line-height: 1.85;
}

.article-content h2 {
  font-size: 24px;
  font-weight: 600;
  color: var(--color-ink);
  margin: 36px 0 18px;
  padding-left: 14px;
  border-left: 4px solid var(--color-gold);
  line-height: 1.4;
}

.article-content h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-ink);
  margin: 28px 0 14px;
}

.article-content p {
  margin-bottom: 24px;
}

.article-content a {
  color: var(--color-primary);
  font-weight: 500;
  border-bottom: 1px solid rgba(15, 118, 110, 0.2);
}

.article-content a:hover {
  color: var(--color-primary-dark);
  border-bottom-color: var(--color-primary-dark);
}

.article-content blockquote {
  border-left: 4px solid var(--color-gold);
  background: var(--color-surface);
  padding: 16px 20px;
  margin: 24px 0;
  border-radius: 0 8px 8px 0;
  color: var(--color-muted);
  font-size: 15px;
}

.article-content ul,
.article-content ol {
  padding-left: 1.4rem;
  margin: 0 0 24px;
}

.article-content ul {
  list-style: disc;
}

.article-content ol {
  list-style: decimal;
}

.article-content li {
  margin-bottom: 8px;
}

.article-content img {
  border-radius: 12px;
  margin: 24px 0;
  border: 1px solid var(--color-line);
}

.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 14px;
}

.article-content table th,
.article-content table td {
  border: 1px solid var(--color-line);
  padding: 10px 12px;
  text-align: left;
}

.article-content table th {
  background: var(--color-surface);
  font-weight: 600;
  color: var(--color-ink);
}

.article-content code {
  background: var(--color-surface);
  border-radius: 4px;
  padding: 2px 6px;
  font-size: 14px;
  color: var(--color-primary-dark);
}

.article-content pre {
  background: var(--color-ink);
  color: #e8dcc8;
  padding: 18px;
  border-radius: 12px;
  overflow-x: auto;
  margin: 24px 0;
  font-size: 14px;
  line-height: 1.6;
}

.article-content pre code {
  background: transparent;
  color: inherit;
  padding: 0;
}

/* 标签 */
.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--color-line);
}

.article-tag {
  display: inline-block;
  background: #fff;
  border: 1px solid var(--color-line);
  color: var(--color-muted);
  font-size: 13px;
  padding: 5px 14px;
  border-radius: 999px;
  transition: all 0.2s ease;
}

.article-tag:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-light);
}

/* 返回入口 */
.article-back {
  margin-top: 28px;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-primary);
  transition: all 0.2s ease;
}

.back-link:hover {
  color: var(--color-primary-dark);
  transform: translateX(-2px);
}

/* 空状态 */
.empty-state {
  text-align: center;
  padding: 40px 20px;
  background: #fff;
  border: 1px solid var(--color-line);
  border-radius: 12px;
}

.empty-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-primary-light);
  margin: 0 auto 18px;
  position: relative;
}

.empty-icon::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 2px solid var(--color-gold);
  transform: translate(-50%, -50%);
}

.empty-state h1 {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 8px;
}

.empty-state p {
  font-size: 14px;
  color: var(--color-muted);
  margin-bottom: 24px;
}

/* 相关推荐 */
.related-section {
  background: var(--color-surface);
  padding: 56px 0;
}

.section-title {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 28px;
  font-weight: 600;
  color: var(--color-ink);
  line-height: 1.3;
  margin-bottom: 28px;
}

.section-title::before {
  content: "";
  width: 8px;
  height: 24px;
  background: var(--color-gold);
  border-radius: 2px;
  flex-shrink: 0;
}

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

@media (min-width: 768px) {
  .related-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.related-card {
  background: #fff;
  border: 1px solid var(--color-line);
  border-radius: 12px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all 0.2s ease;
  box-shadow: var(--shadow-card);
}

.related-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(15, 118, 110, 0.2);
}

.related-card img {
  width: 100%;
  height: 160px;
  object-fit: cover;
  border-bottom: 1px solid var(--color-line);
}

.related-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.related-body h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-ink);
  line-height: 1.5;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.related-body p {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 12px;
}

.related-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-primary);
  margin-top: auto;
  transition: all 0.2s ease;
}

.related-card:hover .related-link {
  color: var(--color-primary-dark);
}

/* CTA 区 */
.cta-section {
  background: var(--color-paper);
  padding: 80px 0;
}

.cta-inner {
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
}

.cta-title {
  font-size: clamp(24px, 3vw, 30px);
  font-weight: 700;
  color: var(--color-ink);
  line-height: 1.3;
  margin-bottom: 12px;
}

.cta-desc {
  font-size: 14px;
  color: var(--color-muted);
  margin-bottom: 28px;
}

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

/* 页脚 */
.site-footer {
  background: var(--color-ink);
  color: rgba(255, 255, 255, 0.78);
  padding: 56px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  padding-bottom: 40px;
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 48px;
  }
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
}

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

.footer-col-title {
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 14px;
}

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

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

.footer-links a {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.65);
  transition: color 0.2s ease;
}

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

.footer-contact {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.65);
  margin-bottom: 16px;
}

.footer-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  padding: 10px 20px;
  border-radius: 999px;
  transition: all 0.2s ease;
}

.footer-btn:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 20px 0;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.45);
  text-align: center;
}