/* roulang page: index */
:root {
    --color-ink: #123C3B;
    --color-deep: #0E2A2A;
    --color-copper: #C96F4A;
    --color-copper-light: #D88764;
    --color-jade: #6FA596;
    --color-paper: #F7F3EC;
    --color-card: #FFFFFF;
    --color-soft-bg: #EFE9DE;
    --color-text: #1D2B2A;
    --color-muted: #6B716E;
    --color-border: #E4DCCE;
    --color-on-dark: #FFFFFF;
    --color-on-dark-muted: #C9D6D2;
    --radius-card: 16px;
    --radius-image: 14px;
    --shadow-card: 0 4px 20px rgba(14,42,42,0.06);
    --shadow-card-hover: 0 10px 30px rgba(14,42,42,0.12);
  }

  * { box-sizing: border-box; margin: 0; padding: 0; }
  html { scroll-behavior: smooth; }
  body {
    font-family: 'PingFang SC', 'HarmonyOS Sans SC', 'Microsoft YaHei', 'sans-serif';
    background: var(--color-paper);
    color: var(--color-text);
    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; }
  input, textarea { font-family: inherit; }

  .container-x {
    width: 100%;
    max-width: 1160px;
    margin: 0 auto;
    padding-left: 40px;
    padding-right: 40px;
  }
  @media (max-width: 1023px) {
    .container-x { padding-left: 24px; padding-right: 24px; }
  }
  @media (max-width: 640px) {
    .container-x { padding-left: 20px; padding-right: 20px; }
  }

  .main-content {
    margin-left: 0;
    padding-top: 64px;
    min-height: 100vh;
  }
  @media (min-width: 1024px) {
    .main-content {
      margin-left: 248px;
      padding-top: 0;
    }
  }

  /* 左侧导航 */
  .side-nav {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: 248px;
    background: var(--color-deep);
    z-index: 60;
    display: none;
    flex-direction: column;
    padding: 32px 20px 28px;
  }
  @media (min-width: 1024px) {
    .side-nav { display: flex; }
  }

  .side-nav .nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 8px 24px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
  }
  .side-nav .logo-mark {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    background: var(--color-copper);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.02em;
  }
  .side-nav .logo-text {
    color: #fff;
    font-size: 20px;
    font-weight: 700;
    letter-spacing: 0.06em;
  }
  .side-nav .nav-links {
    list-style: none;
    padding: 24px 0;
    flex: 1;
  }
  .side-nav .nav-links li { margin-bottom: 4px; }
  .side-nav .nav-links a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    color: var(--color-on-dark-muted);
    border-radius: 10px;
    font-size: 15px;
    font-weight: 400;
    transition: background 0.3s, color 0.3s;
    position: relative;
  }
  .side-nav .nav-links a:hover {
    background: rgba(255,255,255,0.12);
    color: #fff;
  }
  .side-nav .nav-links a.active {
    background: rgba(255,255,255,0.07);
    color: #fff;
    font-weight: 500;
  }
  .side-nav .nav-links a.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 20%;
    height: 60%;
    width: 3px;
    background: var(--color-copper);
    border-radius: 0 3px 3px 0;
  }
  .side-nav .nav-contact {
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
  }
  .side-nav .phone-label {
    font-size: 13px;
    color: rgba(201,214,210,0.7);
  }
  .side-nav .phone-number {
    display: block;
    color: #fff;
    font-size: 16px;
    font-weight: 600;
    margin-top: 2px;
  }
  .btn-cta {
    display: block;
    margin-top: 14px;
    padding: 10px 24px;
    background: var(--color-copper);
    color: #fff;
    border-radius: 999px;
    text-align: center;
    font-size: 14px;
    font-weight: 500;
    transition: background 0.3s, transform 0.2s;
  }
  .btn-cta:hover { background: var(--color-copper-light); }
  .btn-cta:active { transform: translateY(1px); }

  /* 移动端导航 */
  .mobile-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 64px;
    background: var(--color-deep);
    z-index: 55;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
  }
  @media (min-width: 1024px) {
    .mobile-header { display: none; }
  }
  .mobile-header .mobile-brand {
    color: #fff;
    font-size: 18px;
    font-weight: 700;
    letter-spacing: 0.06em;
  }
  .mobile-header .menu-btn {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    border: none;
    background: transparent;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    transition: background 0.3s;
  }
  .mobile-header .menu-btn:hover { background: rgba(255,255,255,0.1); }
  .mobile-header .menu-spacer { width: 40px; }

  .drawer-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.4);
    z-index: 65;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, visibility 0.3s;
  }
  .drawer-overlay.open { opacity: 1; visibility: visible; }

  .mobile-drawer {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: 280px;
    background: var(--color-deep);
    z-index: 70;
    transform: translateX(-100%);
    transition: transform 0.35s ease;
    display: flex;
    flex-direction: column;
    padding: 28px 20px;
  }
  .mobile-drawer.open { transform: translateX(0); }
  .mobile-drawer .drawer-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 36px;
    height: 36px;
    border-radius: 10px;
    border: none;
    background: rgba(255,255,255,0.08);
    color: #fff;
    font-size: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.3s;
  }
  .mobile-drawer .drawer-close:hover { background: rgba(255,255,255,0.16); }
  .mobile-drawer .nav-links { list-style: none; padding: 32px 0; flex: 1; }
  .mobile-drawer .nav-links a {
    display: flex;
    align-items: center;
    padding: 14px 12px;
    color: var(--color-on-dark-muted);
    border-radius: 10px;
    font-size: 15px;
    font-weight: 400;
    transition: background 0.3s, color 0.3s;
    position: relative;
  }
  .mobile-drawer .nav-links a:hover { background: rgba(255,255,255,0.12); color: #fff; }
  .mobile-drawer .nav-links a.active { background: rgba(255,255,255,0.07); color: #fff; font-weight: 500; }
  .mobile-drawer .nav-links a.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 20%;
    height: 60%;
    width: 3px;
    background: var(--color-copper);
    border-radius: 0 3px 3px 0;
  }
  .mobile-drawer .nav-contact { padding-top: 20px; border-top: 1px solid rgba(255,255,255,0.1); }

  /* 按钮 */
  .btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: 999px;
    background: var(--color-copper);
    color: #fff;
    font-size: 15px;
    font-weight: 500;
    border: 1px solid var(--color-copper);
    transition: background 0.3s, transform 0.2s, box-shadow 0.3s;
    box-shadow: 0 4px 14px rgba(201,111,74,0.25);
  }
  .btn-primary:hover { background: var(--color-copper-light); border-color: var(--color-copper-light); box-shadow: 0 6px 20px rgba(201,111,74,0.3); }
  .btn-primary:active { transform: translateY(2px); }
  .btn-primary:focus-visible { outline: none; box-shadow: 0 0 0 2px rgba(201,111,74,0.3); }

  .btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: 999px;
    background: transparent;
    color: var(--color-ink);
    font-size: 15px;
    font-weight: 500;
    border: 1.5px solid var(--color-ink);
    transition: background 0.3s, color 0.3s, transform 0.2s;
  }
  .btn-secondary:hover { background: var(--color-ink); color: #fff; }
  .btn-secondary:active { transform: translateY(2px); }
  .btn-secondary:focus-visible { outline: none; box-shadow: 0 0 0 2px rgba(18,60,59,0.25); }

  /* 标签 */
  .tag {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 12px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 500;
    background: rgba(111,165,150,0.1);
    color: var(--color-ink);
    border: 1px solid rgba(111,165,150,0.3);
  }
  .tag-dark {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 12px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 500;
    background: rgba(255,255,255,0.12);
    color: #fff;
    border: 1px solid rgba(255,255,255,0.2);
  }

  /* 卡片 */
  .card {
    background: #fff;
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
    transition: transform 0.3s, box-shadow 0.3s;
  }
  .card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-card-hover);
  }

  /* 空态 */
  .empty-state {
    border: 2px dashed var(--color-border);
    border-radius: var(--radius-card);
    padding: 64px 32px;
    text-align: center;
    background: rgba(255,255,255,0.6);
  }

  /* FAQ */
  details.faq-item {
    background: #fff;
    border-radius: 12px;
    box-shadow: var(--shadow-card);
    margin-bottom: 14px;
    overflow: hidden;
    transition: box-shadow 0.3s;
  }
  details.faq-item:hover { box-shadow: 0 6px 24px rgba(14,42,42,0.1); }
  details.faq-item summary {
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    font-size: 16px;
    font-weight: 500;
    color: var(--color-text);
    cursor: pointer;
    user-select: none;
    transition: color 0.3s;
  }
  details.faq-item summary::-webkit-details-marker { display: none; }
  details.faq-item summary:hover { color: var(--color-copper); }
  details.faq-item .faq-icon {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: rgba(18,60,59,0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-ink);
    font-size: 16px;
    font-weight: 300;
    flex-shrink: 0;
    transition: transform 0.4s, background 0.3s, color 0.3s;
  }
  details.faq-item[open] .faq-icon {
    transform: rotate(45deg);
    background: var(--color-copper);
    color: #fff;
  }
  details.faq-item .faq-answer {
    padding: 0 24px 20px;
    border-left: 3px solid var(--color-ink);
    margin: 0 24px 0 24px;
    padding-left: 16px;
    font-size: 15px;
    color: var(--color-muted);
    line-height: 1.8;
  }

  /* 表单 */
  .form-group { margin-bottom: 20px; }
  .form-label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text);
    margin-bottom: 6px;
  }
  .form-input {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--color-border);
    border-radius: 10px;
    font-size: 15px;
    color: var(--color-text);
    background: #fff;
    transition: border-color 0.3s, box-shadow 0.3s;
  }
  .form-input:focus {
    outline: none;
    border-color: var(--color-copper);
    box-shadow: 0 0 0 3px rgba(201,111,74,0.2);
  }
  .form-input::placeholder { color: #a9aea9; }
  .form-error { font-size: 13px; color: #d34f4f; margin-top: 4px; }
  .form-success {
    padding: 60px 32px;
    text-align: center;
    font-size: 16px;
    color: var(--color-ink);
    background: rgba(111,165,150,0.08);
    border-radius: 12px;
  }

  /* 区块间距 */
  .section { padding: 80px 0; }
  @media (max-width: 767px) { .section { padding: 56px 0; } }
  .section-header { margin-bottom: 48px; }
  .section-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 500;
    color: var(--color-ink);
    letter-spacing: 0.1em;
    margin-bottom: 12px;
  }
  .section-tag::before {
    content: '';
    width: 20px;
    height: 2px;
    background: var(--color-copper);
    display: inline-block;
    border-radius: 2px;
  }

  /* Hero */
  .hero-section {
    position: relative;
    padding: 90px 0 80px;
    overflow: hidden;
  }
  @media (max-width: 767px) { .hero-section { padding: 64px 0 48px; } }
  .hero-bg {
    position: absolute;
    inset: 0;
    background-image: url('/assets/images/backpic/back-1.webp');
    background-size: cover;
    background-position: center;
    opacity: 0.3;
  }
  .hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(100deg, rgba(247,243,236,0.95) 0%, rgba(247,243,236,0.8) 55%, rgba(247,243,236,0.55) 100%);
  }
  .hero-float-card {
    position: absolute;
    bottom: -20px;
    right: 30px;
    background: #fff;
    border-radius: 14px;
    box-shadow: 0 12px 32px rgba(14,42,42,0.12);
    padding: 18px 24px;
    z-index: 2;
  }

  /* 服务 */
  .service-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
  }
  .service-icon.ink { background: rgba(18,60,59,0.1); color: var(--color-ink); }
  .service-icon.copper { background: rgba(201,111,74,0.1); color: var(--color-copper); }

  /* 数据 */
  .data-number {
    font-size: 42px;
    font-weight: 700;
    font-family: 'Inter', 'DIN Alternate', 'PingFang SC', sans-serif;
    font-variant-numeric: tabular-nums;
    line-height: 1.2;
  }
  @media (max-width: 767px) { .data-number { font-size: 34px; } }

  /* 案例 */
  .case-card-img {
    height: 240px;
    overflow: hidden;
    border-radius: 12px;
  }
  @media (min-width: 768px) { .case-card-img { height: 280px; } }
  .case-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
  }
  .card:hover .case-card-img img { transform: scale(1.03); }

  /* 资讯 */
  .news-list-item + .news-list-item { border-top: 1px solid var(--color-border); }
  .news-list-item { transition: background 0.3s, padding 0.3s; border-radius: 10px; }
  .news-list-item:hover { background: rgba(111,165,150,0.06); padding-left: 12px; }

  /* 方案 */
  .method-number {
    font-family: 'Inter', 'DIN Alternate', sans-serif;
    font-size: 56px;
    font-weight: 700;
    color: rgba(18,60,59,0.15);
    line-height: 1;
    letter-spacing: -0.02em;
  }
  .check-list li {
    padding-left: 26px;
    position: relative;
    margin-bottom: 10px;
  }
  .check-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 8px;
    height: 8px;
    background: var(--color-jade);
    border-radius: 50%;
  }

  /* 页脚 */
  .footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 24px;
    margin-top: 40px;
    font-size: 14px;
    color: rgba(201,214,210,0.6);
  }

  /* 通用 hover */
  .link-copper { transition: color 0.3s; }
  .link-copper:hover { color: var(--color-copper); }

  .img-round { border-radius: var(--radius-image); }

  /* 移动端细节 */
  @media (max-width: 520px) {
    .container-x { padding-left: 16px; padding-right: 16px; }
    .data-number { font-size: 30px; }
    .hero-float-card { right: 16px; bottom: 8px; padding: 12px 16px; }
  }

/* roulang page: article */
:root {
  --color-ink: #123C3B;
  --color-deep: #0E2A2A;
  --color-copper: #C96F4A;
  --color-copper-hover: #D88764;
  --color-jade: #6FA596;
  --color-paper: #F7F3EC;
  --color-card: #FFFFFF;
  --color-secondary-block: #EFE9DE;
  --color-text: #1D2B2A;
  --color-text-secondary: #6B716E;
  --color-darkmuted: #C9D6D2;
  --color-border: #E4DCCE;
  --radius-large: 16px;
  --radius-medium: 12px;
  --radius-small: 10px;
  --radius-full: 999px;
  --shadow-default: 0 4px 20px rgba(14,42,42,0.06);
  --shadow-hover: 0 10px 30px rgba(14,42,42,0.12);
  --font-sans: 'PingFang SC', 'HarmonyOS Sans 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(--color-paper);
  color: var(--color-text);
  line-height: 1.75;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

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

a {
  color: inherit;
  text-decoration: none;
}

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

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}

.container-x {
  max-width: 1160px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 40px;
  padding-right: 40px;
}

/* ==================== 左侧导航 ==================== */
.side-nav {
  position: fixed;
  left: 0;
  top: 0;
  width: 248px;
  height: 100vh;
  background: var(--color-deep);
  z-index: 100;
  display: flex;
  flex-direction: column;
  padding: 28px 20px 24px;
}

.side-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 8px 34px;
}

.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: var(--color-copper);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.02em;
  flex-shrink: 0;
}

.brand-text {
  color: #fff;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.08em;
  white-space: nowrap;
}

.side-nav-links {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.side-nav-links a {
  display: flex;
  align-items: center;
  padding: 12px 14px;
  border-radius: 10px;
  color: var(--color-darkmuted);
  font-size: 14px;
  font-weight: 500;
  transition: all 0.25s ease;
  border-left: 3px solid transparent;
  letter-spacing: 0.02em;
}

.side-nav-links a:hover {
  background: rgba(255,255,255,0.12);
  color: #fff;
}

.side-nav-links a.active {
  background: rgba(255,255,255,0.07);
  color: #fff;
  border-left-color: var(--color-copper);
}

.side-bottom {
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.08);
}

.side-phone {
  display: block;
  text-align: center;
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 14px;
  letter-spacing: 0.03em;
  transition: color 0.2s ease;
}

.side-phone:hover {
  color: var(--color-copper-hover);
}

.side-cta {
  width: 100%;
}

/* ==================== 按钮 ==================== */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--color-copper);
  color: #fff;
  border-radius: var(--radius-full);
  padding: 12px 26px;
  font-size: 14px;
  font-weight: 600;
  transition: all 0.25s ease;
  cursor: pointer;
  letter-spacing: 0.04em;
}

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

.btn-primary:active {
  transform: translateY(1px);
}

.btn-primary:focus-visible {
  outline: 2px solid rgba(201,111,74,0.35);
  outline-offset: 2px;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  color: var(--color-ink);
  border: 1.5px solid var(--color-ink);
  border-radius: var(--radius-full);
  padding: 12px 26px;
  font-size: 14px;
  font-weight: 600;
  transition: all 0.25s ease;
  cursor: pointer;
  letter-spacing: 0.04em;
}

.btn-secondary:hover {
  background: var(--color-ink);
  color: #fff;
}

.btn-secondary:focus-visible {
  outline: 2px solid rgba(18,60,59,0.3);
  outline-offset: 2px;
}

/* ==================== 移动端顶部 ==================== */
.mobile-header {
  display: none;
  position: sticky;
  top: 0;
  z-index: 90;
  background: var(--color-deep);
  padding: 12px 20px;
  align-items: center;
  justify-content: space-between;
}

.menu-btn {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  border-radius: 8px;
  transition: background 0.2s ease;
}

.menu-btn:hover {
  background: rgba(255,255,255,0.1);
}

.mobile-brand {
  color: #fff;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.08em;
  white-space: nowrap;
}

.menu-spacer {
  width: 38px;
}

/* ==================== 抽屉 ==================== */
.drawer-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.4);
  z-index: 110;
  display: none;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.drawer-overlay.active {
  display: block;
  opacity: 1;
}

.drawer {
  position: fixed;
  top: 0;
  left: -300px;
  width: 280px;
  height: 100vh;
  background: var(--color-deep);
  z-index: 120;
  transition: left 0.3s ease;
  display: flex;
  flex-direction: column;
  padding: 24px 20px;
  overflow-y: auto;
}

.drawer.open {
  left: 0;
}

.drawer-close {
  align-self: flex-end;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  border-radius: 8px;
  margin-bottom: 12px;
  transition: background 0.2s ease;
}

.drawer-close:hover {
  background: rgba(255,255,255,0.1);
}

/* ==================== 主内容区 ==================== */
.main-wrapper {
  margin-left: 248px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.article-page {
  flex: 1;
  padding-top: 56px;
  padding-bottom: 80px;
}

/* ==================== 文章页组件 ==================== */
.article-breadcrumb {
  font-size: 13px;
  color: var(--color-text-secondary);
  margin-bottom: 28px;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  letter-spacing: 0.02em;
}

.article-breadcrumb a {
  transition: color 0.2s ease;
}

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

.article-breadcrumb .sep {
  color: #C4C1B9;
}

.article-breadcrumb .current {
  color: var(--color-text);
  font-weight: 500;
  max-width: 400px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.article-panel {
  background: #fff;
  border-radius: var(--radius-large);
  box-shadow: var(--shadow-default);
  padding: 48px 56px 56px;
  border: 1px solid rgba(228,220,206,0.6);
}

.article-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 40px;
}

.article-title {
  font-size: 34px;
  font-weight: 800;
  line-height: 1.35;
  letter-spacing: 0.02em;
  color: var(--color-text);
  margin-bottom: 20px;
}

.article-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  flex-wrap: wrap;
  color: var(--color-text-secondary);
  font-size: 13px;
}

.article-meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--color-text-secondary);
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 14px;
  border-radius: var(--radius-full);
  background: rgba(111,165,150,0.16);
  color: var(--color-ink);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.05em;
  border: 1px solid rgba(111,165,150,0.25);
}

.article-cover {
  border-radius: 14px;
  overflow: hidden;
  max-width: 880px;
  margin: 0 auto 44px;
  position: relative;
}

.article-cover img {
  width: 100%;
  height: auto;
  aspect-ratio: 16/9;
  object-fit: cover;
}

.article-body {
  max-width: 720px;
  margin: 0 auto;
  font-size: 16px;
  line-height: 1.9;
  color: var(--color-text);
}

.article-body h2 {
  font-size: 24px;
  font-weight: 700;
  line-height: 1.4;
  margin-top: 52px;
  margin-bottom: 22px;
  padding-top: 14px;
  position: relative;
  color: var(--color-text);
}

.article-body h2::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 38px;
  height: 4px;
  border-radius: 2px;
  background: var(--color-ink);
}

.article-body h3 {
  font-size: 19px;
  font-weight: 600;
  line-height: 1.5;
  margin-top: 36px;
  margin-bottom: 14px;
  color: var(--color-text);
}

.article-body p {
  margin-bottom: 22px;
}

.article-body ul,
.article-body ol {
  margin-bottom: 22px;
  padding-left: 26px;
}

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

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

.article-body li {
  margin-bottom: 8px;
  line-height: 1.8;
}

.article-body li::marker {
  color: var(--color-copper);
}

.article-body blockquote {
  border-left: 4px solid var(--color-copper);
  background: var(--color-secondary-block);
  padding: 18px 22px;
  border-radius: 0 12px 12px 0;
  margin: 28px 0;
  color: #334341;
  font-style: normal;
}

.article-body blockquote p {
  margin-bottom: 0;
}

.article-body table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  border: 1px solid var(--color-border);
  border-radius: 10px;
  overflow: hidden;
  margin: 28px 0;
  font-size: 14px;
}

.article-body th,
.article-body td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--color-border);
  border-right: 1px solid var(--color-border);
  text-align: left;
  line-height: 1.6;
}

.article-body th {
  background: var(--color-secondary-block);
  font-weight: 600;
  color: var(--color-text);
}

.article-body tr:last-child td {
  border-bottom: none;
}

.article-body th:last-child,
.article-body td:last-child {
  border-right: none;
}

.article-body img {
  border-radius: 12px;
  margin: 28px 0;
}

.article-body a {
  color: var(--color-copper);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.2s ease;
}

.article-body a:hover {
  color: var(--color-copper-hover);
}

.article-footer {
  max-width: 720px;
  margin: 48px auto 0;
  padding-top: 32px;
  border-top: 1px solid var(--color-border);
  display: flex;
  justify-content: center;
}

/* 分页 */
.article-pagination {
  max-width: 880px;
  margin: 40px auto 0;
}

.pagination-link {
  display: flex;
  flex-direction: column;
  background: #fff;
  border-radius: var(--radius-medium);
  padding: 20px 24px;
  border: 1px solid var(--color-border);
  transition: all 0.25s ease;
  box-shadow: var(--shadow-default);
  gap: 4px;
}

.pagination-link:hover {
  box-shadow: var(--shadow-hover);
  border-color: var(--color-jade);
  transform: translateY(-2px);
}

.pagination-label {
  font-size: 12px;
  color: var(--color-text-secondary);
  letter-spacing: 0.06em;
  font-weight: 500;
}

.pagination-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.5;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.pagination-next {
  text-align: right;
}

.pagination-next .pagination-label {
  align-self: flex-end;
}

/* 相关推荐 */
.related-section {
  max-width: 880px;
  margin: 72px auto 0;
}

.related-section-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 28px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.related-section-title::before {
  content: '';
  width: 6px;
  height: 20px;
  border-radius: 3px;
  background: var(--color-copper);
}

.related-card {
  display: block;
  background: #fff;
  border-radius: var(--radius-large);
  overflow: hidden;
  box-shadow: var(--shadow-default);
  transition: all 0.3s ease;
  border: 1px solid rgba(228,220,206,0.6);
}

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

.related-card-img {
  width: 100%;
  height: 170px;
  object-fit: cover;
  transition: transform 0.4s ease;
}

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

.related-card-body {
  padding: 20px 22px 22px;
}

.related-card-title {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--color-text);
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 45px;
}

.related-card-date {
  font-size: 12px;
  color: var(--color-text-secondary);
}

/* 空状态 */
.empty-state {
  background: #fff;
  border-radius: var(--radius-large);
  border: 1.5px dashed var(--color-border);
  padding: 80px 40px;
  text-align: center;
  box-shadow: var(--shadow-default);
}

.empty-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--color-secondary-block);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
}

.empty-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 10px;
}

.empty-desc {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-bottom: 28px;
}

/* ==================== 页脚 ==================== */
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 20px;
  margin-top: 32px;
  color: var(--color-darkmuted);
  font-size: 13px;
  letter-spacing: 0.02em;
}

.footer-bottom a {
  color: var(--color-darkmuted);
  transition: color 0.2s ease;
}

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

/* ==================== 响应式 ==================== */
@media (max-width: 1023.98px) {
  .mobile-header {
    display: flex;
  }

  .side-nav {
    display: none;
  }

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

  .article-page {
    padding-top: 36px;
    padding-bottom: 60px;
  }
}

@media (max-width: 767.98px) {
  .container-x {
    padding-left: 20px;
    padding-right: 20px;
  }

  .article-panel {
    padding: 32px 22px 40px;
    border-radius: 14px;
  }

  .article-title {
    font-size: 26px;
    line-height: 1.4;
  }

  .article-meta {
    gap: 12px;
    font-size: 12px;
  }

  .article-body {
    font-size: 15px;
  }

  .article-body h2 {
    font-size: 21px;
    margin-top: 40px;
  }

  .article-body h3 {
    font-size: 18px;
  }

  .article-cover {
    margin-bottom: 32px;
  }

  .article-pagination {
    margin-top: 28px;
  }

  .related-section {
    margin-top: 52px;
  }

  .empty-state {
    padding: 60px 24px;
  }
}

@media (max-width: 520px) {
  .container-x {
    padding-left: 16px;
    padding-right: 16px;
  }

  .article-panel {
    padding: 24px 16px 32px;
  }

  .article-title {
    font-size: 23px;
  }

  .article-body {
    font-size: 15px;
    line-height: 1.85;
  }

  .pagination-link {
    padding: 16px 18px;
  }
}

@media print {
  .side-nav,
  .mobile-header,
  .drawer-overlay,
  .drawer,
  .article-footer,
  .article-pagination,
  .related-section,
  .site-footer {
    display: none !important;
  }

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

  .article-panel {
    box-shadow: none;
    border: none;
    padding: 0;
  }
}

/* roulang page: category1 */
*,
    *::before,
    *::after {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      font-family: 'PingFang SC', 'HarmonyOS Sans SC', 'Microsoft YaHei', 'sans-serif';
      background: #F7F3EC;
      color: #1D2B2A;
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
    }
    img {
      max-width: 100%;
      display: block;
    }
    a {
      text-decoration: none;
      color: inherit;
    }
    button {
      border: none;
      background: none;
      cursor: pointer;
      font-family: inherit;
    }

    .container-x {
      max-width: 1160px;
      margin: 0 auto;
      padding-left: 40px;
      padding-right: 40px;
    }
    @media (max-width: 640px) {
      .container-x {
        padding-left: 20px;
        padding-right: 20px;
      }
    }

    /* ===== Sidebar ===== */
    .sidebar {
      position: fixed;
      top: 0;
      left: 0;
      width: 248px;
      height: 100vh;
      background: #0E2A2A;
      color: #fff;
      z-index: 60;
      display: flex;
      flex-direction: column;
      padding: 28px 20px 24px;
      transition: transform .3s ease;
      overflow-y: auto;
    }
    .sidebar-close {
      display: none;
    }
    .nav-item {
      position: relative;
      display: flex;
      align-items: center;
      padding: 12px 16px;
      border-radius: 10px;
      color: #C9D6D2;
      font-size: 15px;
      font-weight: 500;
      margin-bottom: 4px;
      transition: background .2s, color .2s;
    }
    .nav-item:hover {
      background: rgba(255, 255, 255, 0.12);
      color: #fff;
    }
    .nav-item.active {
      background: rgba(255, 255, 255, 0.07);
      color: #fff;
    }
    .nav-item.active::before {
      content: '';
      position: absolute;
      left: -20px;
      top: 0;
      width: 3px;
      height: 100%;
      background: #C96F4A;
      border-radius: 0 3px 3px 0;
    }
    .sidebar-bottom {
      margin-top: auto;
      padding-top: 24px;
      border-top: 1px solid rgba(255, 255, 255, 0.1);
    }

    /* ===== Mobile Header ===== */
    .mobile-header {
      display: none;
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      height: 60px;
      background: #0E2A2A;
      z-index: 55;
      align-items: center;
      justify-content: space-between;
      padding: 0 20px;
    }
    .menu-btn {
      width: 40px;
      height: 40px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      border-radius: 8px;
      transition: background .2s;
    }
    .menu-btn:hover {
      background: rgba(255, 255, 255, 0.1);
    }
    .mobile-brand {
      color: #fff;
      font-size: 17px;
      font-weight: 700;
      letter-spacing: .05em;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .menu-spacer {
      width: 40px;
      height: 40px;
    }

    /* ===== Overlay ===== */
    .drawer-overlay {
      position: fixed;
      inset: 0;
      background: rgba(0, 0, 0, 0.4);
      z-index: 50;
      opacity: 0;
      pointer-events: none;
      transition: opacity .3s;
    }
    .drawer-overlay.show {
      opacity: 1;
      pointer-events: auto;
    }

    /* ===== Main ===== */
    .main-wrap {
      margin-left: 248px;
      min-height: 100vh;
    }

    /* ===== Buttons ===== */
    .btn-copper {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 12px 30px;
      background: #C96F4A;
      color: #fff;
      border-radius: 999px;
      font-weight: 600;
      font-size: 15px;
      transition: background .2s, transform .2s, box-shadow .2s;
    }
    .btn-copper:hover {
      background: #D88764;
      transform: translateY(-1px);
      box-shadow: 0 8px 24px rgba(201, 111, 74, 0.32);
    }
    .btn-copper:active {
      transform: translateY(0);
    }
    .btn-copper:focus-visible,
    .btn-outline:focus-visible,
    .btn-outline-light:focus-visible {
      outline: 2px solid rgba(201, 111, 74, 0.5);
      outline-offset: 2px;
    }

    .btn-outline {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 11px 26px;
      border: 1px solid #123C3B;
      color: #123C3B;
      border-radius: 999px;
      font-weight: 600;
      font-size: 15px;
      transition: background .2s, color .2s;
    }
    .btn-outline:hover {
      background: #123C3B;
      color: #fff;
    }

    .btn-outline-light {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 12px 30px;
      border: 1px solid rgba(255, 255, 255, 0.45);
      color: #fff;
      border-radius: 999px;
      font-weight: 600;
      font-size: 15px;
      transition: background .2s, border-color .2s;
    }
    .btn-outline-light:hover {
      background: rgba(255, 255, 255, 0.1);
      border-color: rgba(255, 255, 255, 0.7);
    }

    /* ===== Section mark ===== */
    .section-mark {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      font-size: 13px;
      font-weight: 600;
      color: #123C3B;
      letter-spacing: .12em;
    }
    .section-mark::before {
      content: '';
      width: 7px;
      height: 7px;
      border-radius: 999px;
      background: #6FA596;
      flex-shrink: 0;
    }
    .section-mark.centered::before {
      margin: 0 auto;
    }

    /* ===== Service list rows ===== */
    .service-row {
      display: grid;
      grid-template-columns: 96px 1fr 48px;
      gap: 28px;
      align-items: start;
      padding: 36px 0;
      border-bottom: 1px solid #E4DCCE;
    }
    .service-row:first-child {
      border-top: 1px solid #E4DCCE;
    }
    .service-num {
      font-size: 42px;
      font-weight: 700;
      color: #C96F4A;
      line-height: 1;
      font-family: 'Inter', 'DIN Alternate', 'Helvetica Neue', sans-serif;
      letter-spacing: -0.02em;
      font-variant-numeric: tabular-nums;
      padding-top: 2px;
    }
    .service-content h3 {
      font-size: 20px;
      font-weight: 700;
      color: #1D2B2A;
    }
    .service-content p {
      margin-top: 8px;
      font-size: 15px;
      line-height: 1.75;
      color: #6B716E;
      max-width: 660px;
    }
    .service-arrow {
      width: 42px;
      height: 42px;
      border-radius: 999px;
      border: 1px solid #E4DCCE;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #123C3B;
      font-size: 18px;
      transition: all .2s;
      margin-top: 2px;
    }
    .service-row:hover .service-arrow {
      background: #123C3B;
      border-color: #123C3B;
      color: #fff;
      transform: translateX(2px);
    }

    @media (max-width: 640px) {
      .service-row {
        grid-template-columns: 54px 1fr;
        gap: 14px;
        padding: 26px 0;
      }
      .service-num {
        font-size: 28px;
      }
      .service-arrow {
        display: none;
      }
    }

    /* ===== Steps ===== */
    .step-card {
      background: #fff;
      border: 1px solid #E4DCCE;
      border-radius: 16px;
      padding: 28px 24px;
      box-shadow: 0 4px 20px rgba(14, 42, 42, 0.04);
      transition: transform .2s, box-shadow .2s;
    }
    .step-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 10px 30px rgba(14, 42, 42, 0.1);
    }
    .step-num {
      width: 46px;
      height: 46px;
      background: #123C3B;
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-weight: 700;
      font-size: 17px;
      font-family: 'Inter', 'DIN Alternate', sans-serif;
      font-variant-numeric: tabular-nums;
    }
    .step-card h3 {
      font-size: 17px;
      font-weight: 700;
      color: #1D2B2A;
      margin-top: 18px;
    }
    .step-card p {
      margin-top: 8px;
      font-size: 14px;
      line-height: 1.7;
      color: #6B716E;
    }

    /* ===== Scenario cards ===== */
    .scenario-card {
      background: #fff;
      border: 1px solid #E4DCCE;
      border-radius: 16px;
      padding: 28px 24px;
      box-shadow: 0 4px 20px rgba(14, 42, 42, 0.04);
      transition: transform .2s, box-shadow .2s;
    }
    .scenario-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 10px 30px rgba(14, 42, 42, 0.1);
    }
    .scenario-card .scenario-id {
      font-size: 13px;
      font-weight: 600;
      color: #6FA596;
      letter-spacing: .08em;
    }
    .scenario-card h3 {
      font-size: 18px;
      font-weight: 700;
      color: #1D2B2A;
      margin-top: 8px;
    }
    .scenario-card p {
      margin-top: 10px;
      font-size: 14px;
      line-height: 1.7;
      color: #6B716E;
    }

    /* ===== FAQ ===== */
    .faq-item {
      background: #fff;
      border: 1px solid #E4DCCE;
      border-radius: 14px;
      padding: 20px 24px;
      margin-bottom: 14px;
      transition: box-shadow .2s;
    }
    .faq-item[open] {
      box-shadow: 0 8px 24px rgba(14, 42, 42, 0.08);
    }
    .faq-item summary {
      list-style: none;
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      font-size: 16px;
      font-weight: 600;
      color: #1D2B2A;
      gap: 16px;
    }
    .faq-item summary::-webkit-details-marker {
      display: none;
    }
    .faq-icon {
      width: 28px;
      height: 28px;
      border-radius: 999px;
      border: 1px solid #E4DCCE;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      font-weight: 400;
      color: #123C3B;
      transition: transform .2s;
      flex-shrink: 0;
    }
    .faq-item[open] .faq-icon {
      transform: rotate(45deg);
    }
    .faq-answer {
      margin-top: 14px;
      padding-left: 16px;
      border-left: 3px solid #123C3B;
      color: #6B716E;
      font-size: 15px;
      line-height: 1.75;
    }
    .mini-contact-card {
      background: #fff;
      border: 1px solid #E4DCCE;
      border-radius: 16px;
      padding: 28px;
      box-shadow: 0 4px 20px rgba(14, 42, 42, 0.06);
    }

    /* ===== Hero ===== */
    .hero-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);
      color: #E9DED2;
      font-size: 13px;
      font-weight: 500;
      padding: 6px 16px;
      border-radius: 999px;
      letter-spacing: .08em;
    }

    /* ===== Footer ===== */
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      padding-top: 28px;
      margin-top: 12px;
      color: #7F938E;
      font-size: 13px;
    }

    /* ===== Responsive ===== */
    @media (max-width: 1023.98px) {
      .sidebar {
        transform: translateX(-100%);
        box-shadow: none;
      }
      .sidebar.open {
        transform: translateX(0);
        box-shadow: 0 0 60px rgba(0, 0, 0, 0.3);
      }
      .sidebar-close {
        display: flex;
      }
      .mobile-header {
        display: flex;
      }
      .main-wrap {
        margin-left: 0;
        padding-top: 60px;
      }
      body.body-lock {
        overflow: hidden;
      }
    }
    @media (min-width: 1024px) {
      .sidebar {
        transform: none;
      }
    }

/* roulang page: category2 */
:root {
      --ink: #123C3B;
      --deep: #0E2A2A;
      --copper: #C96F4A;
      --copper-hover: #D88764;
      --jade: #6FA596;
      --paper: #F7F3EC;
      --white: #FFFFFF;
      --sub: #EFE9DE;
      --text: #1D2B2A;
      --muted: #6B716E;
      --darkmuted: #C9D6D2;
      --border: #E4DCCE;
      --radius-lg: 16px;
      --radius-md: 12px;
      --radius-sm: 10px;
      --shadow: 0 4px 20px rgba(14, 42, 42, 0.06);
      --shadow-lg: 0 10px 30px rgba(14, 42, 42, 0.12);
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: 'PingFang SC', 'HarmonyOS Sans SC', 'Microsoft YaHei', sans-serif;
      font-size: 15px;
      line-height: 1.75;
      background: var(--paper);
      color: var(--text);
      -webkit-font-smoothing: antialiased;
    }

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

    a {
      color: inherit;
      text-decoration: none;
    }

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

    input,
    textarea {
      font-family: inherit;
    }

    .container-x {
      width: 100%;
      max-width: 1160px;
      margin: 0 auto;
      padding: 0 24px;
    }

    @media (min-width: 1024px) {
      body {
        margin-left: 248px;
      }
      .container-x {
        padding: 0 48px;
      }
    }

    .section {
      padding: 72px 0;
    }

    @media (max-width: 767px) {
      .section {
        padding: 50px 0;
      }
    }

    .section-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 13px;
      font-weight: 600;
      letter-spacing: 0.12em;
      color: var(--copper);
    }

    .section-tag::before {
      content: "";
      width: 18px;
      height: 2px;
      border-radius: 2px;
      background: var(--jade);
    }

    .sidebar {
      position: fixed;
      top: 0;
      left: 0;
      width: 248px;
      height: 100vh;
      background: var(--deep);
      color: #fff;
      display: flex;
      flex-direction: column;
      padding: 28px 24px 24px;
      z-index: 70;
      transition: transform 0.3s ease;
    }

    .sidebar-close {
      display: none;
      position: absolute;
      top: 14px;
      right: 14px;
      width: 34px;
      height: 34px;
      border-radius: 8px;
      background: rgba(255, 255, 255, 0.08);
      color: #fff;
      align-items: center;
      justify-content: center;
      border: none;
    }

    .brand-mark {
      width: 40px;
      height: 40px;
      border-radius: 12px;
      background: var(--copper);
      color: #fff;
      font-size: 15px;
      font-weight: 700;
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
    }

    .brand-name {
      font-size: 17px;
      font-weight: 700;
      letter-spacing: 0.08em;
      color: #fff;
    }

    .brand-sub {
      font-size: 12px;
      color: var(--darkmuted);
      letter-spacing: 0.04em;
      margin-top: 2px;
    }

    .side-nav {
      margin-top: 36px;
      flex: 1;
      display: flex;
      flex-direction: column;
      gap: 4px;
    }

    .nav-link {
      position: relative;
      display: flex;
      align-items: center;
      padding: 11px 16px;
      border-radius: 10px;
      font-size: 14px;
      color: var(--darkmuted);
      transition: background 0.2s, color 0.2s;
      letter-spacing: 0.02em;
    }

    .nav-link:hover {
      background: rgba(255, 255, 255, 0.12);
      color: #fff;
    }

    .nav-link.active {
      background: rgba(255, 255, 255, 0.07);
      color: #fff;
    }

    .nav-link.active::before {
      content: "";
      position: absolute;
      left: -24px;
      top: 10px;
      bottom: 10px;
      width: 3px;
      border-radius: 0 3px 3px 0;
      background: var(--copper);
    }

    .side-phone {
      font-size: 16px;
      font-weight: 600;
      color: #fff;
      letter-spacing: 0.03em;
      display: block;
      margin-bottom: 12px;
    }

    .mobile-header {
      display: none;
      align-items: center;
      gap: 12px;
      height: 60px;
      padding: 0 16px;
      background: var(--deep);
      color: #fff;
      position: sticky;
      top: 0;
      z-index: 65;
    }

    .menu-btn {
      background: transparent;
      border: none;
      color: #fff;
      padding: 8px;
      border-radius: 8px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
    }

    .mobile-brand {
      color: #fff;
      font-size: 17px;
      font-weight: 700;
      letter-spacing: 0.08em;
    }

    .menu-spacer {
      flex: 1;
    }

    .drawer-overlay {
      position: fixed;
      inset: 0;
      background: rgba(0, 0, 0, 0.4);
      z-index: 45;
      opacity: 0;
      pointer-events: none;
      transition: opacity 0.3s ease;
    }

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

    @media (max-width: 1023.98px) {
      .sidebar {
        transform: translateX(-100%);
        box-shadow: 12px 0 40px rgba(0, 0, 0, 0.2);
      }
      .sidebar.open {
        transform: translateX(0);
      }
      .sidebar-close {
        display: flex;
      }
      .mobile-header {
        display: flex;
      }
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 12px 28px;
      border-radius: 999px;
      font-size: 14px;
      font-weight: 600;
      line-height: 1;
      border: 1px solid transparent;
      transition: background 0.2s, color 0.2s, border-color 0.2s, transform 0.15s, box-shadow 0.2s;
      white-space: nowrap;
    }

    .btn:active {
      transform: translateY(1px);
    }

    .btn:focus-visible {
      outline: 2px solid rgba(201, 111, 74, 0.3);
      outline-offset: 2px;
    }

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

    .btn-primary:hover {
      background: var(--copper-hover);
    }

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

    .btn-outline:hover {
      background: var(--ink);
      color: #fff;
    }

    .btn-block {
      width: 100%;
    }

    .badge {
      display: inline-block;
      padding: 4px 12px;
      border-radius: 999px;
      font-size: 12px;
      font-weight: 600;
      color: var(--ink);
      background: rgba(111, 165, 150, 0.12);
      border: 1px solid rgba(111, 165, 150, 0.3);
    }

    .btn-sm {
      padding: 10px 20px;
      font-size: 13px;
    }

    .card {
      background: var(--white);
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow);
      transition: transform 0.25s ease, box-shadow 0.25s ease;
    }

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

    .breadcrumb {
      font-size: 13px;
      color: var(--muted);
      display: flex;
      align-items: center;
      gap: 8px;
      flex-wrap: wrap;
    }

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

    .page-hero {
      position: relative;
      padding: 72px 0 72px;
      overflow: hidden;
      border-bottom: 1px solid var(--border);
    }

    .page-hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background-image: url('/assets/images/backpic/back-2.webp');
      background-size: cover;
      background-position: center;
      opacity: 0.09;
    }

    .page-hero::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(90deg, rgba(247, 243, 236, 0.96) 0%, rgba(247, 243, 236, 0.82) 60%, rgba(247, 243, 236, 0.4) 100%);
    }

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

    .hero-float-card {
      position: absolute;
      bottom: -16px;
      left: -16px;
      background: #fff;
      border: 1px solid var(--border);
      border-radius: 14px;
      box-shadow: var(--shadow-lg);
      padding: 16px 22px;
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .float-num {
      font-size: 26px;
      font-weight: 700;
      font-family: 'DIN Alternate', 'Inter', sans-serif;
      color: var(--copper);
      line-height: 1;
    }

    .float-label {
      font-size: 13px;
      color: var(--muted);
      line-height: 1.3;
    }

    .sol-card {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: 16px;
      overflow: hidden;
      box-shadow: var(--shadow);
      transition: transform 0.25s ease, box-shadow 0.25s ease;
      height: 100%;
      display: flex;
      flex-direction: column;
    }

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

    .sol-card-img {
      width: 100%;
      height: 200px;
      object-fit: cover;
      display: block;
      transition: transform 0.4s ease;
    }

    .sol-card:hover .sol-card-img {
      transform: scale(1.03);
    }

    .sol-card-body {
      padding: 24px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }

    .sol-list {
      margin-top: 14px;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .sol-list li {
      position: relative;
      padding-left: 20px;
      font-size: 14px;
      color: var(--muted);
      line-height: 1.7;
    }

    .sol-list li::before {
      content: "";
      position: absolute;
      left: 0;
      top: 9px;
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--jade);
    }

    .steps-wrap {
      background: var(--sub);
      border-radius: 20px;
      padding: 48px 32px;
    }

    .step-card {
      background: rgba(255, 255, 255, 0.7);
      border: 1px solid rgba(18, 60, 59, 0.08);
      border-radius: 16px;
      padding: 28px 24px;
      height: 100%;
      transition: background 0.2s, box-shadow 0.2s;
    }

    .step-card:hover {
      background: #fff;
      box-shadow: var(--shadow);
    }

    .step-num {
      font-size: 40px;
      font-family: 'DIN Alternate', 'Inter', sans-serif;
      font-weight: 700;
      color: var(--copper);
      line-height: 1;
      letter-spacing: 0.02em;
    }

    .stats-band {
      background: var(--deep);
    }

    .stat-number {
      font-size: 46px;
      font-weight: 700;
      font-family: 'DIN Alternate', 'Inter', sans-serif;
      color: var(--copper);
      line-height: 1.1;
    }

    .stat-label {
      font-size: 14px;
      color: var(--darkmuted);
    }

    @media (max-width: 767px) {
      .stat-number {
        font-size: 32px;
      }
    }

    .audit-item {
      display: flex;
      gap: 14px;
      padding: 20px 22px;
      background: #fff;
      border: 1px solid var(--border);
      border-radius: 12px;
      box-shadow: var(--shadow);
    }

    .audit-icon {
      width: 34px;
      height: 34px;
      border-radius: 10px;
      background: rgba(18, 60, 59, 0.08);
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
      color: var(--ink);
    }

    .faq-grid details {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: 16px;
      box-shadow: var(--shadow);
      overflow: hidden;
      transition: box-shadow 0.2s;
    }

    .faq-grid details[open] {
      box-shadow: var(--shadow-lg);
    }

    .faq-grid summary {
      padding: 20px 24px;
      font-size: 15px;
      font-weight: 600;
      color: var(--text);
      cursor: pointer;
      list-style: none;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      user-select: none;
    }

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

    .faq-icon {
      width: 22px;
      height: 22px;
      border-radius: 50%;
      border: 1.5px solid var(--copper);
      color: var(--copper);
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
      transition: transform 0.25s;
    }

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

    .faq-body {
      padding: 0 24px 22px 24px;
      color: var(--muted);
      font-size: 14px;
      line-height: 1.8;
      margin: 0 24px;
      border-left: 3px solid var(--ink);
      padding-left: 20px;
    }

    .contact-card {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: 20px;
      box-shadow: var(--shadow);
      padding: 32px;
    }

    .form-label {
      display: block;
      font-size: 13px;
      font-weight: 600;
      color: var(--text);
      margin-bottom: 6px;
      letter-spacing: 0.02em;
    }

    .form-input {
      width: 100%;
      padding: 11px 14px;
      border: 1px solid var(--border);
      border-radius: 10px;
      background: #fff;
      font-size: 14px;
      color: var(--text);
      transition: border-color 0.2s, box-shadow 0.2s;
    }

    .form-input:focus {
      outline: none;
      border-color: var(--copper);
      box-shadow: 0 0 0 3px rgba(201, 111, 74, 0.18);
    }

    .form-input::placeholder {
      color: #A8AEAA;
    }

    .success-box {
      background: rgba(111, 165, 150, 0.12);
      border: 1px solid rgba(111, 165, 150, 0.35);
      color: var(--ink);
      border-radius: 10px;
      padding: 12px 16px;
      font-size: 14px;
    }

    footer {
      background: var(--deep);
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      margin-top: 32px;
      padding-top: 24px;
      font-size: 13px;
      color: var(--darkmuted);
    }

    @media (max-width: 1023.98px) {
      .page-hero {
        padding: 48px 0 56px;
      }
      .steps-wrap {
        padding: 32px 20px;
      }
      .contact-card {
        padding: 24px;
      }
    }

/* roulang page: category3 */
:root {
      --ink: #123C3B;
      --deep: #0E2A2A;
      --copper: #C96F4A;
      --copper-hover: #D88764;
      --jade: #6FA596;
      --paper: #F7F3EC;
      --white: #FFFFFF;
      --subbase: #EFE9DE;
      --body: #1D2B2A;
      --muted: #6B716E;
      --darkmuted: #C9D6D2;
      --line: #E4DCCE;
      --radius-card: 16px;
      --radius-item: 10px;
      --shadow-soft: 0 4px 20px rgba(14, 42, 42, 0.06);
      --shadow-lift: 0 10px 30px rgba(14, 42, 42, 0.12);
      --font-sans: 'PingFang SC', 'HarmonyOS Sans SC', 'Microsoft YaHei', -apple-system, 'Segoe UI', sans-serif;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: var(--font-sans);
      background: var(--paper);
      color: var(--body);
      line-height: 1.75;
      font-size: 15px;
      -webkit-font-smoothing: antialiased;
    }

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

    a {
      text-decoration: none;
      color: inherit;
    }

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

    ul, ol {
      list-style: none;
    }

    .container-x {
      max-width: 1160px;
      margin: 0 auto;
      padding-left: 40px;
      padding-right: 40px;
    }

    @media (max-width: 767px) {
      .container-x {
        padding-left: 20px;
        padding-right: 20px;
      }
    }

    /* ===== Sidebar / Navigation ===== */
    .side-nav {
      position: fixed;
      top: 0;
      left: 0;
      bottom: 0;
      width: 248px;
      background: var(--deep);
      z-index: 80;
      display: flex;
      flex-direction: column;
      padding: 32px 20px 24px;
    }

    .side-nav-head {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 0 6px;
      margin-bottom: 40px;
    }

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

    .brand-mark {
      width: 40px;
      height: 40px;
      border-radius: 12px;
      background: var(--copper);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 15px;
      font-weight: 700;
      flex-shrink: 0;
    }

    .side-brand-text {
      color: #fff;
      font-size: 18px;
      font-weight: 700;
      letter-spacing: 0.04em;
    }

    .side-menu {
      display: flex;
      flex-direction: column;
      gap: 6px;
      flex: 1;
    }

    .side-link {
      position: relative;
      display: block;
      padding: 12px 14px;
      border-radius: 10px;
      color: var(--darkmuted);
      font-size: 15px;
      font-weight: 500;
      transition: background 0.2s, color 0.2s;
    }

    .side-link:hover {
      background: rgba(255, 255, 255, 0.12);
      color: #fff;
    }

    .side-link.active {
      background: rgba(255, 255, 255, 0.07);
      color: #fff;
      font-weight: 600;
    }

    .side-link.active::before {
      content: '';
      position: absolute;
      left: 0;
      top: 10px;
      bottom: 10px;
      width: 3px;
      border-radius: 0 2px 2px 0;
      background: var(--copper);
    }

    .side-bottom {
      display: flex;
      flex-direction: column;
      gap: 12px;
      padding: 20px 6px 0;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
    }

    .side-phone {
      color: var(--darkmuted);
      font-size: 13px;
      letter-spacing: 0.02em;
    }

    .main-content {
      margin-left: 248px;
      min-height: 100vh;
    }

    .drawer-overlay {
      display: none;
    }

    .drawer-close {
      display: none;
    }

    .mobile-header {
      display: none;
    }

    @media (max-width: 1023px) {
      .side-nav {
        transform: translateX(-105%);
        transition: transform 0.3s ease, box-shadow 0.3s ease;
        box-shadow: none;
        padding-top: 22px;
      }

      .side-nav.open {
        transform: translateX(0);
        box-shadow: 0 0 60px rgba(0, 0, 0, 0.35);
      }

      .drawer-close {
        display: flex;
        width: 36px;
        height: 36px;
        align-items: center;
        justify-content: center;
        border-radius: 10px;
        border: 1px solid rgba(255, 255, 255, 0.16);
        background: transparent;
        color: var(--darkmuted);
        cursor: pointer;
        transition: border-color 0.2s, color 0.2s;
      }

      .drawer-close:hover {
        color: #fff;
        border-color: rgba(255, 255, 255, 0.3);
      }

      .mobile-header {
        display: flex;
        position: sticky;
        top: 0;
        left: 0;
        right: 0;
        height: 60px;
        background: var(--deep);
        align-items: center;
        padding: 0 20px;
        gap: 14px;
        z-index: 70;
      }

      .mobile-brand {
        color: #fff;
        font-size: 17px;
        font-weight: 700;
        letter-spacing: 0.04em;
      }

      .menu-btn {
        width: 38px;
        height: 38px;
        display: flex;
        align-items: center;
        justify-content: center;
        background: transparent;
        border: none;
        color: #fff;
        cursor: pointer;
        border-radius: 10px;
        transition: background 0.2s;
      }

      .menu-btn:hover {
        background: rgba(255, 255, 255, 0.08);
      }

      .menu-spacer {
        flex: 1;
      }

      .drawer-overlay.show {
        display: block;
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.4);
        z-index: 75;
      }

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

    /* ===== Buttons ===== */
    .btn-primary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 12px 28px;
      border-radius: 999px;
      background: var(--copper);
      color: #fff;
      font-weight: 600;
      font-size: 15px;
      border: 1px solid transparent;
      cursor: pointer;
      transition: background 0.2s, transform 0.15s, box-shadow 0.2s;
    }

    .btn-primary:hover {
      background: var(--copper-hover);
      transform: translateY(-1px);
      box-shadow: 0 10px 30px rgba(201, 111, 74, 0.25);
    }

    .btn-primary:active {
      transform: translateY(1px);
    }

    .btn-primary:focus-visible {
      outline: none;
      box-shadow: 0 0 0 4px rgba(201, 111, 74, 0.3);
    }

    .btn-secondary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 12px 28px;
      border-radius: 999px;
      border: 1px solid var(--ink);
      color: var(--ink);
      font-weight: 600;
      font-size: 15px;
      background: transparent;
      cursor: pointer;
      transition: background 0.2s, color 0.2s, transform 0.15s, box-shadow 0.2s;
    }

    .btn-secondary:hover {
      background: var(--ink);
      color: #fff;
      transform: translateY(-1px);
      box-shadow: 0 10px 30px rgba(18, 60, 59, 0.18);
    }

    .btn-secondary:active {
      transform: translateY(1px);
    }

    .btn-secondary:focus-visible {
      outline: none;
      box-shadow: 0 0 0 4px rgba(18, 60, 59, 0.16);
    }

    .btn-sm {
      padding: 10px 22px;
      font-size: 14px;
    }

    /* ===== Hero ===== */
    .hero-section {
      position: relative;
      overflow: hidden;
      padding: 96px 0 88px;
      background: var(--paper);
    }

    .hero-bg {
      position: absolute;
      inset: 0;
      background-size: cover;
      background-position: center;
      opacity: 0.16;
    }

    .hero-veil {
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, rgba(247, 243, 236, 0.95) 0%, rgba(247, 243, 236, 0.88) 100%);
    }

    .hero-inner {
      position: relative;
      z-index: 10;
    }

    .hero-title {
      font-size: 40px;
      line-height: 1.2;
      font-weight: 800;
      letter-spacing: 0.02em;
      color: var(--body);
      margin-top: 16px;
    }

    .hero-sub {
      margin-top: 20px;
      font-size: 16px;
      line-height: 1.8;
      color: var(--muted);
      max-width: 540px;
    }

    .hero-media {
      position: relative;
    }

    .hero-media img {
      border-radius: 16px;
      box-shadow: 0 10px 40px rgba(14, 42, 42, 0.12);
      aspect-ratio: 4 / 3;
      object-fit: cover;
    }

    .hero-float-card {
      position: absolute;
      left: -24px;
      bottom: -20px;
      background: #fff;
      border-radius: 16px;
      box-shadow: 0 10px 30px rgba(14, 42, 42, 0.12);
      padding: 18px 24px;
      display: flex;
      align-items: center;
      gap: 14px;
    }

    .float-num {
      font-family: 'DIN Alternate', 'Inter', sans-serif;
      font-size: 32px;
      font-weight: 700;
      color: var(--copper);
      line-height: 1;
    }

    .float-label {
      font-size: 13px;
      color: var(--muted);
    }

    @media (max-width: 1023px) {
      .hero-section {
        padding: 64px 0 72px;
      }

      .hero-title {
        font-size: 32px;
      }

      .hero-float-card {
        left: 12px;
        bottom: -18px;
        padding: 14px 18px;
      }

      .float-num {
        font-size: 26px;
      }
    }

    @media (max-width: 640px) {
      .hero-title {
        font-size: 28px;
      }

      .hero-sub {
        font-size: 15px;
      }

      .hero-media {
        margin-top: 12px;
      }

      .hero-float-card {
        left: 8px;
        bottom: -16px;
      }
    }

    /* ===== Section Layout ===== */
    .section {
      padding: 96px 0;
    }

    .section-white {
      background: #fff;
    }

    .section-subbase {
      background: var(--subbase);
    }

    @media (max-width: 767px) {
      .section {
        padding: 60px 0;
      }
    }

    .section-head {
      margin-bottom: 56px;
    }

    .section-head h2 {
      font-size: 30px;
      line-height: 1.35;
      font-weight: 700;
      color: var(--body);
      margin-top: 14px;
    }

    .section-head p {
      margin-top: 12px;
      color: var(--muted);
      font-size: 16px;
      max-width: 680px;
    }

    .section-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--ink);
      font-size: 13px;
      font-weight: 600;
      letter-spacing: 0.1em;
    }

    .section-tag::before {
      content: '';
      width: 20px;
      height: 2px;
      background: var(--copper);
      border-radius: 2px;
    }

    @media (max-width: 640px) {
      .section-head h2 {
        font-size: 24px;
      }

      .section-head p {
        font-size: 15px;
      }
    }

    /* ===== Card ===== */
    .card {
      background: #fff;
      border-radius: 16px;
      box-shadow: var(--shadow-soft);
      padding: 28px;
      border: 1px solid rgba(228, 220, 206, 0.6);
      transition: transform 0.25s, box-shadow 0.25s;
    }

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

    .tag {
      display: inline-flex;
      align-items: center;
      padding: 5px 12px;
      border-radius: 999px;
      font-size: 12px;
      font-weight: 600;
      color: var(--ink);
      background: rgba(111, 165, 150, 0.12);
      border: 1px solid rgba(111, 165, 150, 0.3);
    }

    /* ===== Timeline ===== */
    .timeline {
      position: relative;
      max-width: 980px;
      margin: 0 auto;
    }

    .timeline::before {
      content: '';
      position: absolute;
      top: 0;
      bottom: 0;
      left: 50%;
      width: 1px;
      background: var(--line);
      transform: translateX(-50%);
    }

    .timeline-item {
      position: relative;
      width: 50%;
      padding-right: 48px;
      margin-bottom: 40px;
    }

    .timeline-item:nth-child(even) {
      margin-left: 50%;
      padding-right: 0;
      padding-left: 48px;
    }

    .timeline-item:last-child {
      margin-bottom: 0;
    }

    .timeline-dot {
      position: absolute;
      top: 28px;
      right: -7px;
      width: 14px;
      height: 14px;
      border-radius: 50%;
      background: var(--copper);
      border: 3px solid var(--subbase);
      box-shadow: 0 0 0 1px rgba(201, 111, 74, 0.3);
      z-index: 2;
    }

    .timeline-item:nth-child(even) .timeline-dot {
      right: auto;
      left: -7px;
      border-color: var(--subbase);
    }

    .timeline-card {
      background: #fff;
      border-radius: 16px;
      overflow: hidden;
      box-shadow: var(--shadow-soft);
      border: 1px solid rgba(228, 220, 206, 0.6);
      transition: box-shadow 0.25s, transform 0.25s;
    }

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

    .timeline-img {
      width: 100%;
      height: 180px;
      object-fit: cover;
    }

    .timeline-body {
      padding: 24px;
    }

    .timeline-stage {
      display: inline-flex;
      align-items: center;
      padding: 4px 12px;
      border-radius: 999px;
      background: rgba(111, 165, 150, 0.14);
      color: var(--ink);
      font-size: 12px;
      font-weight: 600;
    }

    .timeline-card h3 {
      font-size: 18px;
      font-weight: 700;
      margin-top: 12px;
      color: var(--body);
    }

    .timeline-card p {
      font-size: 14px;
      color: var(--muted);
      margin-top: 8px;
      line-height: 1.7;
    }

    .timeline-metrics {
      display: flex;
      gap: 28px;
      margin-top: 18px;
      padding-top: 18px;
      border-top: 1px solid var(--line);
    }

    .timeline-metrics div {
      display: flex;
      flex-direction: column;
    }

    .timeline-metrics strong {
      font-size: 22px;
      font-weight: 700;
      color: var(--copper);
      font-family: 'DIN Alternate', 'Inter', sans-serif;
      line-height: 1.1;
    }

    .timeline-metrics span {
      font-size: 12px;
      color: var(--muted);
      margin-top: 4px;
    }

    @media (max-width: 1023px) {
      .timeline::before {
        left: 12px;
      }

      .timeline-item,
      .timeline-item:nth-child(even) {
        width: 100%;
        margin-left: 0;
        padding: 0 0 36px 40px;
      }

      .timeline-dot,
      .timeline-item:nth-child(even) .timeline-dot {
        left: 5px;
        right: auto;
      }
    }

    @media (max-width: 520px) {
      .timeline-img {
        height: 150px;
      }

      .timeline-body {
        padding: 20px;
      }

      .timeline-metrics {
        gap: 20px;
        flex-wrap: wrap;
      }
    }

    /* ===== Stats ===== */
    .stats-band {
      background: var(--deep);
      padding: 76px 0;
    }

    .stat {
      text-align: center;
      padding: 0 28px;
      position: relative;
    }

    .stat + .stat::before {
      content: '';
      position: absolute;
      left: 0;
      top: 10%;
      height: 80%;
      width: 1px;
      background: rgba(255, 255, 255, 0.1);
    }

    .stat-num {
      font-size: 50px;
      font-weight: 700;
      color: #fff;
      font-family: 'DIN Alternate', 'Inter', sans-serif;
      line-height: 1;
      letter-spacing: -0.01em;
    }

    .stat-label {
      margin-top: 10px;
      color: var(--darkmuted);
      font-size: 14px;
    }

    @media (max-width: 767px) {
      .stats-band {
        padding: 56px 0;
      }

      .stat {
        padding: 16px;
      }

      .stat:nth-child(3)::before {
        display: none;
      }

      .stat-num {
        font-size: 38px;
      }
    }

    /* ===== Industry ===== */
    .industry-icon {
      width: 52px;
      height: 52px;
      border-radius: 14px;
      background: rgba(111, 165, 150, 0.14);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--ink);
      margin-bottom: 20px;
    }

    .industry-card h3 {
      font-size: 18px;
      font-weight: 700;
      color: var(--body);
    }

    .industry-card p {
      font-size: 14px;
      color: var(--muted);
      margin-top: 8px;
      line-height: 1.7;
    }

    /* ===== Quote ===== */
    .quote-card {
      background: #fff;
      border-radius: 16px;
      padding: 30px;
      border: 1px solid rgba(228, 220, 206, 0.6);
      box-shadow: var(--shadow-soft);
      transition: transform 0.25s, box-shadow 0.25s;
    }

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

    .quote-text {
      font-size: 15px;
      line-height: 1.8;
      color: var(--body);
    }

    .quote-person {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-top: 22px;
      padding-top: 20px;
      border-top: 1px solid var(--line);
    }

    .quote-avatar {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: var(--ink);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 600;
      font-size: 14px;
      flex-shrink: 0;
    }

    .quote-name {
      font-weight: 600;
      font-size: 14px;
      color: var(--body);
    }

    .quote-role {
      font-size: 12px;
      color: var(--muted);
      margin-top: 2px;
    }

    /* ===== FAQ ===== */
    .faq-left {
      position: sticky;
      top: 40px;
    }

    .faq-card {
      background: #fff;
      border-radius: 16px;
      border: 1px solid var(--line);
      box-shadow: var(--shadow-soft);
      overflow: hidden;
    }

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

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

    .faq-item summary {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      padding: 20px 24px;
      cursor: pointer;
      font-size: 15px;
      font-weight: 600;
      color: var(--body);
      list-style: none;
      transition: background 0.2s;
    }

    .faq-item summary:hover {
      background: rgba(247, 243, 236, 0.5);
    }

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

    .faq-icon {
      flex-shrink: 0;
      width: 28px;
      height: 28px;
      border-radius: 50%;
      background: rgba(111, 165, 150, 0.12);
      color: var(--ink);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 18px;
      font-weight: 400;
      transition: transform 0.25s;
    }

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

    .faq-answer {
      padding: 0 24px 24px;
      border-left: 3px solid var(--ink);
      margin: 0 24px 20px;
      color: var(--muted);
      font-size: 14px;
      line-height: 1.8;
    }

    @media (max-width: 1023px) {
      .faq-left {
        position: static;
      }
    }

    /* ===== Contact ===== */
    .contact-card {
      background: #fff;
      border-radius: 20px;
      box-shadow: 0 10px 40px rgba(14, 42, 42, 0.08);
      padding: 56px;
      border: 1px solid rgba(228, 220, 206, 0.5);
    }

    @media (max-width: 767px) {
      .contact-card {
        padding: 32px 20px;
      }
    }

    .contact-list li {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      color: var(--muted);
      font-size: 14px;
      padding: 9px 0;
    }

    .contact-list li::before {
      content: '';
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--copper);
      flex-shrink: 0;
      margin-top: 10px;
    }

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

    .field {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }

    .field.full {
      grid-column: 1 / -1;
    }

    .field label {
      font-size: 13px;
      font-weight: 600;
      color: var(--body);
    }

    .field input,
    .field textarea {
      border: 1px solid var(--line);
      border-radius: 10px;
      padding: 11px 14px;
      background: #fff;
      transition: border-color 0.2s, box-shadow 0.2s;
      font-size: 14px;
      line-height: 1.5;
      outline: none;
    }

    .field input:focus,
    .field textarea:focus {
      border-color: var(--copper);
      box-shadow: 0 0 0 3px rgba(201, 111, 74, 0.16);
    }

    .field-error input,
    .field-error textarea {
      border-color: #C96F4A;
      box-shadow: 0 0 0 3px rgba(201, 111, 74, 0.1);
    }

    .form-tip {
      margin-top: 14px;
      font-size: 13px;
      color: var(--muted);
      min-height: 20px;
    }

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

    /* ===== Footer ===== */
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 24px;
      font-size: 13px;
      color: var(--darkmuted);
    }

    footer a {
      transition: color 0.2s;
    }

    footer a:hover {
      color: #fff;
    }