/* roulang page: index */
:root {
  --color-primary: #1F4E47;
  --color-primary-dark: #173A35;
  --color-primary-light: #E8F0ED;
  --color-accent: #C9A063;
  --color-accent-dark: #B8914E;
  --color-accent-light: #F5EDDF;
  --color-bg: #F7F8F6;
  --color-card: #FFFFFF;
  --color-text: #1F2A28;
  --color-text-secondary: #5A6B66;
  --color-text-muted: #8A9B95;
  --color-border: #E4E9E6;
  --radius-card: 12px;
  --radius-btn: 6px;
  --radius-badge: 4px;
  --shadow-card: 0 2px 8px rgba(31,78,71,0.06);
  --shadow-card-hover: 0 8px 24px rgba(31,78,71,0.12);
  --shadow-nav: 0 4px 16px rgba(31,78,71,0.1);
  --shadow-modal: 0 24px 48px rgba(23,58,53,0.2);
  --transition-base: 0.25s ease;
  --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC", sans-serif;
  --font-number: Georgia, "Times New Roman", serif;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-main);
  font-size: 16px;
  line-height: 1.75;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--color-primary); text-decoration: none; transition: color var(--transition-base); }
a:hover { color: var(--color-primary-dark); }
img { max-width: 100%; height: auto; }
.container { max-width: 1200px; padding-left: 24px; padding-right: 24px; }
.section { padding: 96px 0; }
.section-sm { padding: 72px 0; }
.section-title { font-size: 34px; line-height: 1.35; font-weight: 700; color: var(--color-text); margin-bottom: 0; letter-spacing: -0.02em; }
.section-title-wrap { position: relative; margin-bottom: 16px; }
.section-title-wrap::before {
  content: "";
  display: block;
  width: 12px;
  height: 4px;
  border-radius: 2px;
  background: var(--color-accent);
  margin-bottom: 12px;
}
.section-subtitle { font-size: 16px; color: var(--color-text-secondary); max-width: 62ch; line-height: 1.75; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-main);
  font-size: 16px;
  font-weight: 600;
  line-height: 1;
  padding: 12px 28px;
  border-radius: var(--radius-btn);
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  min-height: 44px;
}
.btn:focus { outline: 3px solid rgba(201,160,99,0.4); outline-offset: 2px; box-shadow: none; }
.btn-accent {
  background: var(--color-accent);
  color: var(--color-text);
}
.btn-accent:hover, .btn-accent:active {
  background: var(--color-accent-dark);
  color: var(--color-text);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(201,160,99,0.3);
}
.btn-outline-primary {
  background: transparent;
  border: 1.5px solid var(--color-primary);
  color: var(--color-primary);
}
.btn-outline-primary:hover { background: var(--color-primary-light); color: var(--color-primary); border-color: var(--color-primary); }
.btn-primary-solid { background: var(--color-primary); color: #fff; }
.btn-primary-solid:hover { background: var(--color-primary-dark); color: #fff; }
.btn-sm { padding: 8px 18px; font-size: 14px; min-height: 36px; }
.btn.disabled, .btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none !important; box-shadow: none !important; }

/* ===== 导航 ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.75);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(31,78,71,0.12);
  box-shadow: 0 4px 20px rgba(31,78,71,0.05);
  transition: background 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
.site-header.scrolled {
  background: #FFFFFF;
  border-color: var(--color-border);
  box-shadow: var(--shadow-nav);
}
.site-header .navbar { padding: 12px 0; min-height: 72px; }
.site-header .navbar-brand {
  font-size: 19px;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.2;
  letter-spacing: -0.01em;
}
.site-header .navbar-brand span { color: var(--color-primary); }
.site-header .navbar-nav { gap: 8px; }
.site-header .nav-link {
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text);
  padding: 8px 16px !important;
  border-radius: var(--radius-btn);
  position: relative;
  transition: color var(--transition-base);
}
.site-header .nav-link::after {
  content: "";
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 2px;
  height: 2px;
  background: var(--color-primary);
  border-radius: 1px;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.2s ease;
}
.site-header .nav-link:hover { color: var(--color-primary); }
.site-header .nav-link:hover::after { transform: scaleX(1); }
.site-header .nav-link.active { color: var(--color-primary); }
.site-header .nav-link.active::after { transform: scaleX(1); }
.site-header .header-cta { margin-left: 16px; }
.site-header .navbar-toggler {
  border: none;
  padding: 6px 8px;
}
.site-header .navbar-toggler:focus { box-shadow: none; }
.site-header .navbar-toggler-icon {
  width: 22px;
  height: 18px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 18'%3E%3Cpath stroke='%231F2A28' stroke-width='2' stroke-linecap='round' d='M2 2h20M2 9h20M2 16h20'/%3E%3C/svg%3E");
  background-size: contain;
}
@media (max-width: 991px) {
  .site-header .navbar-collapse {
    background: #fff;
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card-hover);
    padding: 20px;
    margin-top: 12px;
  }
  .site-header .navbar-nav { gap: 4px; }
  .site-header .nav-link { padding: 12px 16px !important; }
  .site-header .header-cta { margin-left: 0; margin-top: 16px; }
  .site-header .header-cta .btn { width: 100%; }
}

/* ===== Hero ===== */
.hero {
  position: relative;
  background: var(--color-bg);
  min-height: 640px;
  max-height: 900px;
  display: flex;
  align-items: center;
  padding: 140px 0 80px;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 80% 20%, rgba(201,160,99,0.08) 0, transparent 40%),
    radial-gradient(circle at 20% 80%, rgba(31,78,71,0.06) 0, transparent 40%);
  pointer-events: none;
}
.hero-line {
  position: absolute;
  left: 0;
  top: 140px;
  bottom: 80px;
  width: 1px;
  background: var(--color-accent);
  opacity: 0.6;
}
.hero-content { position: relative; z-index: 1; }
.hero h1 {
  font-size: 44px;
  line-height: 1.3;
  font-weight: 700;
  color: var(--color-text);
  margin: 0 0 20px;
  letter-spacing: -0.02em;
}
.hero h1 .hero-brand { color: var(--color-primary); }
.hero-subtitle {
  font-size: 16px;
  color: var(--color-text-secondary);
  line-height: 1.75;
  max-width: 40ch;
  margin-bottom: 36px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 28px; }
.hero-license {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--color-text-muted);
}
.hero-license i { color: var(--color-primary); font-size: 18px; }
.hero-image-wrap {
  position: relative;
  z-index: 1;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 24px 48px rgba(31,78,71,0.18);
  margin-left: auto;
}
.hero-image-wrap img { width: 100%; display: block; object-fit: cover; aspect-ratio: 4/3; }
.hero-image-wrap::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(31,78,71,0.1) 0%, rgba(23,58,53,0.25) 100%);
  pointer-events: none;
}
.hero-badge-card {
  position: absolute;
  right: 16px;
  bottom: 16px;
  background: rgba(255,255,255,0.9);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  border-radius: 8px;
  padding: 10px 16px;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-primary);
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
  z-index: 2;
}
.hero-wave {
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  line-height: 0;
  z-index: 0;
}
.hero-wave svg { width: 100%; height: 48px; display: block; }
@media (max-width: 991px) {
  .hero { padding: 120px 0 60px; min-height: 0; }
  .hero h1 { font-size: 34px; }
  .hero-image-wrap { margin-left: 0; margin-top: 48px; }
  .hero-line { display: none; }
}
@media (max-width: 575px) {
  .hero h1 { font-size: 30px; }
  .hero-subtitle { font-size: 15px; }
  .hero-actions .btn { flex: 1; }
}

/* ===== 痛点提问区 ===== */
.pain-points { background: var(--color-card); }
.pain-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 32px;
  height: 100%;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}
.pain-card:hover { border-color: var(--color-accent); box-shadow: var(--shadow-card-hover); }
.pain-card .pain-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 20px;
}
.pain-card h3 { font-size: 18px; font-weight: 600; color: var(--color-text); margin-bottom: 12px; line-height: 1.5; }
.pain-card p { font-size: 14px; color: var(--color-text-secondary); line-height: 1.6; margin-bottom: 0; }
.pain-more { display: inline-flex; align-items: center; gap: 4px; margin-top: 16px; font-size: 14px; font-weight: 500; color: var(--color-primary); }
.pain-more i { transition: transform 0.2s ease; }
.pain-more:hover i { transform: translateX(4px); }

/* ===== 方案区 ===== */
.solutions { background: var(--color-bg); }
.solution-header { display: flex; gap: 64px; align-items: flex-start; margin-bottom: 56px; }
.solution-header .section-title-wrap { flex: 0 0 40%; }
.solution-header .section-desc { flex: 0 0 55%; }
.solution-card {
  background: var(--color-card);
  border-radius: var(--radius-card);
  padding: 32px;
  height: 100%;
  box-shadow: var(--shadow-card);
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}
.solution-card:hover { box-shadow: var(--shadow-card-hover); transform: translateY(-4px); }
.solution-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 20px;
}
.solution-card h3 { font-size: 20px; font-weight: 600; color: var(--color-text); margin-bottom: 12px; }
.solution-card p { font-size: 15px; color: var(--color-text-secondary); line-height: 1.7; margin-bottom: 20px; }
.solution-card .solution-line { width: 32px; height: 2px; background: var(--color-accent); border-radius: 1px; }
.solution-link { display: inline-flex; align-items: center; gap: 6px; font-size: 14px; font-weight: 500; }
.solution-link i { transition: transform 0.2s ease; }
.solution-link:hover i { transform: translateX(4px); }
@media (max-width: 991px) {
  .solution-header { flex-direction: column; gap: 24px; }
  .solution-header .section-title-wrap, .solution-header .section-desc { flex: 0 0 100%; }
}

/* ===== 数据区 ===== */
.stats-section { background: var(--color-card); position: relative; }
.stats-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 8px;
  background: var(--color-accent-light);
  border-radius: 0 0 8px 8px;
}
.stats-grid { margin-top: 40px; }
.stat-item {
  text-align: center;
  padding: 32px 16px;
  border-left: 1px dashed var(--color-border);
}
.stat-item:first-child { border-left: none; }
.stat-label { font-size: 15px; font-weight: 600; color: var(--color-text-secondary); margin-bottom: 12px; }
.stat-number {
  font-family: var(--font-number);
  font-size: 42px;
  line-height: 1.2;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: 8px;
}
.stat-desc { font-size: 14px; color: var(--color-text-muted); }
@media (max-width: 767px) {
  .stat-item { border-left: none; border-bottom: 1px dashed var(--color-border); }
  .stat-item:last-child { border-bottom: none; }
  .stat-number { font-size: 34px; }
}

/* ===== 资讯列表 ===== */
.news-section { background: var(--color-bg); }
.feature-card {
  display: block;
  background: var(--color-card);
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: box-shadow var(--transition-base), transform var(--transition-base);
  height: 100%;
}
.feature-card:hover { box-shadow: var(--shadow-card-hover); transform: translateY(-4px); }
.feature-card-img { overflow: hidden; }
.feature-card-img img { width: 100%; aspect-ratio: 16/9; object-fit: cover; transition: transform 0.4s ease; display: block; }
.feature-card:hover .feature-card-img img { transform: scale(1.02); }
.feature-card-body { padding: 24px; }
.feature-card-body h3 { font-size: 20px; font-weight: 600; color: var(--color-text); margin: 12px 0; line-height: 1.4; }
.feature-card-body p { font-size: 14px; color: var(--color-text-secondary); line-height: 1.6; margin-bottom: 16px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.list-item {
  display: flex;
  gap: 16px;
  background: var(--color-card);
  border-radius: var(--radius-card);
  padding: 16px;
  margin-bottom: 12px;
  border-left: 2px solid transparent;
  transition: border-color var(--transition-base), box-shadow var(--transition-base), background var(--transition-base);
  align-items: flex-start;
}
.list-item:hover { border-left-color: var(--color-primary); box-shadow: var(--shadow-card); background: var(--color-primary-light); }
.list-item-thumb { flex: 0 0 120px; }
.list-item-thumb img { width: 120px; height: 90px; object-fit: cover; border-radius: 8px; display: block; }
.list-item-content { flex: 1; min-width: 0; }
.list-item-content h4 { font-size: 16px; font-weight: 600; color: var(--color-text); margin: 0 0 6px; line-height: 1.4; display: -webkit-box; -webkit-line-clamp: 1; -webkit-box-orient: vertical; overflow: hidden; }
.list-item-content p { font-size: 13px; color: var(--color-text-secondary); margin: 0 0 8px; line-height: 1.5; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.badge-category {
  display: inline-block;
  background: var(--color-accent-light);
  color: #8A6D35;
  font-size: 12px;
  font-weight: 500;
  border-radius: var(--radius-badge);
  padding: 4px 10px;
  margin-right: 8px;
}
.badge-category:hover { background: #EDDFC6; color: #8A6D35; }
.time-text { font-size: 13px; color: var(--color-text-muted); }
.empty-state {
  background: var(--color-card);
  border-radius: var(--radius-card);
  border: 1px dashed var(--color-border);
  padding: 48px 24px;
  text-align: center;
  color: var(--color-text-muted);
  font-size: 16px;
}
.news-more { text-align: center; margin-top: 32px; }
@media (max-width: 575px) {
  .list-item { flex-direction: column; }
  .list-item-thumb { flex: 0 0 auto; }
  .list-item-thumb img { width: 100%; height: 160px; border-radius: 8px; }
}

/* ===== FAQ ===== */
.faq-section { background: var(--color-card); }
.faq-layout { display: flex; gap: 64px; }
.faq-left { flex: 0 0 35%; }
.faq-right { flex: 1; }
.faq-intro { font-size: 16px; color: var(--color-text-secondary); line-height: 1.75; margin-bottom: 24px; }
.faq-contact-link { display: inline-flex; align-items: center; gap: 8px; font-size: 15px; font-weight: 500; color: var(--color-primary); }
.faq-contact-link i { transition: transform 0.2s ease; }
.faq-contact-link:hover i { transform: translateX(4px); }
.faq-item {
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 20px 24px;
  margin-bottom: 12px;
  transition: border-color var(--transition-base), background var(--transition-base);
}
.faq-item.active { border-color: var(--color-primary); background: #FBFCFA; box-shadow: var(--shadow-card); }
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text);
  margin: 0;
  transition: color var(--transition-base);
}
.faq-question .faq-icon {
  flex: 0 0 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  transition: transform 0.25s ease, background 0.25s ease;
  margin-left: 16px;
}
.faq-item.active .faq-icon { transform: rotate(45deg); }
.faq-answer {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-top: 12px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, opacity 0.25s ease;
  opacity: 0;
}
.faq-item.active .faq-answer { max-height: 300px; opacity: 1; }
@media (max-width: 991px) {
  .faq-layout { flex-direction: column; gap: 32px; }
}

/* ===== CTA ===== */
.cta-section { background: var(--color-primary-dark); position: relative; overflow: hidden; }
.cta-section::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -20%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(201,160,99,0.12) 0%, transparent 70%);
  border-radius: 50%;
}
.cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 32px; position: relative; z-index: 1; flex-wrap: wrap; }
.cta-title { font-size: 32px; font-weight: 700; color: #fff; margin: 0 0 8px; line-height: 1.3; }
.cta-desc { font-size: 15px; color: rgba(255,255,255,0.7); margin-bottom: 0; }
.cta-actions { display: flex; gap: 16px; }
.cta-privacy { font-size: 13px; color: rgba(255,255,255,0.4); margin-top: 16px; text-align: center; }
@media (max-width: 767px) {
  .cta-inner { flex-direction: column; text-align: center; }
  .cta-actions { flex-direction: column; width: 100%; }
  .cta-actions .btn { width: 100%; }
  .cta-title { font-size: 26px; }
}

/* ===== 页脚 ===== */
.site-footer { background: var(--color-primary-dark); color: rgba(255,255,255,0.7); padding-top: 64px; }
.site-footer::before { content: ""; display: block; height: 1px; background: rgba(255,255,255,0.1); }
.footer-title { font-size: 18px; font-weight: 600; color: #fff; margin-bottom: 16px; position: relative; padding-bottom: 8px; }
.footer-title::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 24px;
  height: 2px;
  background: var(--color-accent);
  border-radius: 1px;
}
.footer-brand { font-size: 20px; font-weight: 600; color: #fff; margin-bottom: 12px; }
.footer-desc { font-size: 14px; line-height: 1.6; color: rgba(255,255,255,0.6); margin-bottom: 16px; }
.footer-icp { font-size: 12px; color: rgba(255,255,255,0.35); }
.footer-links { list-style: none; margin: 0; padding: 0; }
.footer-links li { margin-bottom: 8px; }
.footer-links a { font-size: 14px; color: rgba(255,255,255,0.7); transition: color 0.2s ease; }
.footer-links a:hover { color: #fff; }
.footer-contact { list-style: none; margin: 0; padding: 0; }
.footer-contact li { display: flex; align-items: flex-start; gap: 8px; margin-bottom: 12px; font-size: 14px; color: rgba(255,255,255,0.7); }
.footer-contact i { color: var(--color-accent); }
.footer-bottom { background: #112E29; padding: 16px 0; margin-top: 48px; }
.footer-bottom .container { display: flex; justify-content: center; align-items: center; }
.footer-copyright { font-size: 13px; color: rgba(255,255,255,0.4); text-align: center; }

/* ===== 表单弹层 ===== */
.modal-content {
  border: none;
  border-radius: 16px;
  box-shadow: var(--shadow-modal);
}
.modal-header { border-bottom: 1px solid var(--color-border); padding: 24px 32px; }
.modal-title { font-size: 22px; font-weight: 600; color: var(--color-text); }
.modal-body { padding: 32px; }
.modal-btn-close { filter: none; opacity: 0.5; }
.modal-btn-close:hover { opacity: 1; }
.form-label { font-size: 14px; font-weight: 600; color: var(--color-text-secondary); margin-bottom: 8px; }
.form-control {
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 12px 16px;
  font-family: var(--font-main);
  font-size: 15px;
  color: var(--color-text);
  min-height: 44px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.form-control:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(31,78,71,0.1);
  outline: none;
}
.form-control::placeholder { color: var(--color-text-muted); }
.form-privacy { font-size: 13px; color: var(--color-text-muted); text-align: center; margin-top: 16px; }
.form-privacy a { color: var(--color-primary); }
@media (max-width: 575px) {
  .modal-body { padding: 24px; }
  .modal-header { padding: 20px 24px; }
}

/* ===== 响应式通用 ===== */
@media (max-width: 991px) {
  .section { padding: 72px 0; }
  .section-title { font-size: 28px; }
}
@media (max-width: 575px) {
  .section { padding: 56px 0; }
  .section-title { font-size: 26px; }
}
@media (hover: hover) {
  .solution-card:hover, .feature-card:hover, .list-item:hover { transform: translateY(-4px); }
}

/* roulang page: category1 */
:root {
  --color-primary: #1F4E47;
  --color-primary-dark: #173A35;
  --color-primary-light: #E8F0ED;
  --color-accent: #C9A063;
  --color-accent-light: #F5EDDF;
  --color-bg: #F7F8F6;
  --color-card: #FFFFFF;
  --color-text: #1F2A28;
  --color-text-secondary: #5A6B66;
  --color-text-muted: #8A9B95;
  --color-border: #E4E9E6;
  --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC", sans-serif;
  --font-serif: Georgia, "Times New Roman", serif;
  --radius-lg: 12px;
  --radius-md: 6px;
  --radius-sm: 4px;
  --shadow-card: 0 2px 8px rgba(31,78,71,0.06);
  --shadow-card-hover: 0 8px 24px rgba(31,78,71,0.12);
  --shadow-header: 0 4px 16px rgba(31,78,71,0.1);
  --shadow-modal: 0 24px 48px rgba(23,58,53,0.2);
  --transition: 0.25s ease;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

a { text-decoration: none; color: var(--color-primary); transition: color 0.2s ease; }
a:hover { color: var(--color-primary-dark); }

.btn:focus, a:focus, input:focus, textarea:focus, button:focus {
  outline: 3px solid rgba(201,160,99,0.4);
  outline-offset: 2px;
}

.container { max-width: 1200px; }

/* ===== 导航 ===== */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.78);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(31,78,71,0.12);
  box-shadow: 0 4px 20px rgba(31,78,71,0.05);
  transition: background 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.site-header.scrolled {
  background: #FFFFFF;
  border-color: var(--color-border);
  box-shadow: var(--shadow-header);
}

.navbar { padding: 14px 0; }

.navbar-brand {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.3;
  letter-spacing: 0.2px;
  white-space: normal;
}

.navbar-brand span {
  color: var(--color-accent);
  font-weight: 600;
}

.navbar-toggler {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 6px 10px;
}

.navbar-toggler:focus {
  box-shadow: none;
  outline: 3px solid rgba(201,160,99,0.4);
  outline-offset: 2px;
}

.navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%231F4E47' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

.navbar-nav .nav-link {
  font-size: 16px;
  font-weight: 500;
  color: var(--color-text);
  padding: 8px 2px;
  margin: 0 14px;
  position: relative;
  transition: color 0.2s ease;
}

.navbar-nav .nav-link::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  width: 0; height: 2px;
  border-radius: 2px;
  background: var(--color-primary);
  transition: width 0.22s ease;
}

.navbar-nav .nav-link:hover { color: var(--color-primary); }
.navbar-nav .nav-link:hover::after { width: 100%; }
.navbar-nav .nav-link.active { color: var(--color-primary); font-weight: 600; }
.navbar-nav .nav-link.active::after { width: 100%; }

.header-cta { margin-left: 8px; }

.btn-accent {
  background: var(--color-accent);
  color: var(--color-text);
  border: none;
  border-radius: var(--radius-md);
  padding: 10px 24px;
  font-weight: 600;
  font-size: 15px;
  line-height: 1.5;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: background 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
}

.btn-accent:hover {
  background: #B8914E;
  color: var(--color-text);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(201,160,99,0.3);
}

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

/* ===== 分类 Hero ===== */
.category-hero {
  position: relative;
  padding: 150px 0 70px;
  min-height: 320px;
  background:
    linear-gradient(rgba(232,240,237,0.92), rgba(232,240,237,0.94)),
    url('/assets/images/backpic/back-1.webp') center / cover no-repeat;
  background-color: var(--color-primary-light);
  overflow: hidden;
  display: flex;
  align-items: center;
}

.category-hero::before {
  content: '';
  position: absolute;
  right: -60px;
  top: 50%;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: rgba(201,160,99,0.14);
  transform: translateY(-50%);
}

.category-hero::after {
  content: '';
  position: absolute;
  right: 110px;
  top: 50%;
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: rgba(31,78,71,0.08);
  transform: translateY(-50%);
}

.category-hero-inner {
  position: relative;
  z-index: 2;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 48px;
}

.category-hero-content { max-width: 720px; }

.category-hero-tag {
  display: inline-block;
  background: var(--color-accent-light);
  color: #8A6D35;
  font-size: 13px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: var(--radius-sm);
  margin-bottom: 18px;
  letter-spacing: 0.5px;
}

.category-hero h1 {
  font-size: 38px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-text);
  margin-bottom: 16px;
}

.category-hero h1 .hero-brand {
  display: block;
  font-size: 20px;
  font-weight: 600;
  color: var(--color-primary);
  margin-top: 6px;
}

.category-hero-content > p {
  font-size: 16px;
  color: var(--color-text-secondary);
  line-height: 1.75;
  max-width: 620px;
  margin-bottom: 0;
}

.category-hero-deco {
  flex-shrink: 0;
  width: 220px;
  height: 220px;
  border: 1px solid rgba(201,160,99,0.35);
  border-radius: 50%;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.category-hero-deco::before {
  content: '';
  width: 140px;
  height: 140px;
  border: 1px dashed rgba(31,78,71,0.25);
  border-radius: 50%;
  position: absolute;
}

.category-hero-deco::after {
  content: '';
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, var(--color-accent) 0%, #E0C492 100%);
  border-radius: 50%;
  opacity: 0.8;
}

/* ===== 通用区块 ===== */
.section {
  padding: 96px 0;
}

.section-bg-white { background: var(--color-card); }
.section-bg-gray { background: var(--color-bg); }

.section-head {
  max-width: 680px;
  margin: 0 auto 56px;
  text-align: center;
}

.section-head-left {
  margin: 0 0 56px;
  text-align: left;
}

.section-mark {
  display: inline-block;
  width: 12px;
  height: 4px;
  border-radius: 2px;
  background: var(--color-accent);
  margin-bottom: 14px;
}

.section-head h2 {
  font-size: 34px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--color-text);
  margin-bottom: 10px;
}

.section-head p {
  font-size: 16px;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* ===== 核心能力 ===== */
.feature-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  height: 100%;
  transition: box-shadow 0.25s ease, transform 0.25s ease, border-color 0.25s ease;
}

.feature-card:hover {
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-4px);
  border-color: var(--color-accent);
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  font-size: 22px;
  margin-bottom: 20px;
  flex-shrink: 0;
}

.feature-card h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 10px;
}

.feature-card p {
  color: var(--color-text-secondary);
  font-size: 15px;
  line-height: 1.7;
  margin-bottom: 0;
}

/* ===== 方案卡片 ===== */
.solution-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  height: 100%;
  transition: box-shadow 0.25s ease, transform 0.25s ease;
}

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

.solution-cover {
  position: relative;
  height: 210px;
  overflow: hidden;
  background: var(--color-primary-light);
}

.solution-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.solution-card:hover .solution-cover img {
  transform: scale(1.02);
}

.card-badge {
  position: absolute;
  top: 14px;
  left: 14px;
  background: rgba(255,255,255,0.92);
  color: var(--color-primary);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  box-shadow: 0 2px 6px rgba(31,78,71,0.1);
  backdrop-filter: blur(4px);
  z-index: 2;
}

.solution-body {
  padding: 24px;
}

.solution-body h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 10px;
  line-height: 1.4;
}

.solution-body p {
  color: var(--color-text-secondary);
  font-size: 15px;
  line-height: 1.7;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.solution-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 14px;
  border-top: 1px solid var(--color-border);
}

.meta-tag {
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-size: 13px;
  font-weight: 500;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
}

.text-link {
  color: var(--color-primary);
  font-weight: 600;
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.text-link i { transition: transform 0.2s ease; }
.text-link:hover i { transform: translateX(4px); }
.text-link:hover { color: var(--color-primary-dark); }

/* ===== 流程 ===== */
.process-section {
  background: var(--color-bg);
  padding: 96px 0;
}

.process-step {
  text-align: center;
  padding: 36px 24px 28px;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  height: 100%;
  position: relative;
  transition: box-shadow 0.25s ease, transform 0.25s ease;
}

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

.process-step .step-num {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}

.process-step h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 10px;
}

.process-step p {
  color: var(--color-text-secondary);
  font-size: 14px;
  line-height: 1.65;
  margin-bottom: 0;
}

@media (min-width: 992px) {
  .process-step:not(:last-child)::after {
    content: '→';
    position: absolute;
    right: -22px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-accent);
    font-size: 26px;
    font-weight: 300;
    z-index: 3;
    text-shadow: 0 2px 4px rgba(255,255,255,0.8);
  }
}

/* ===== FAQ ===== */
.faq-accordion .accordion-item {
  border: 1px solid var(--color-border);
  border-radius: 8px !important;
  margin-bottom: 12px;
  background: var(--color-card);
  overflow: hidden;
  transition: border-color 0.25s ease;
}

.faq-accordion .accordion-item:has(.accordion-button:not(.collapsed)) {
  border-color: var(--color-primary);
}

.faq-accordion .accordion-button {
  padding: 20px 24px;
  font-size: 17px;
  font-weight: 600;
  color: var(--color-text);
  background: transparent;
  box-shadow: none;
  border-radius: 8px !important;
  transition: color 0.2s ease;
}

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

.faq-accordion .accordion-button:not(.collapsed) {
  background: #FBFCFA;
  color: var(--color-primary);
}

.faq-accordion .accordion-button::after {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  margin-left: auto;
  content: '+';
  background-image: none;
  font-size: 20px;
  font-weight: 400;
  line-height: 1;
  text-align: center;
  color: var(--color-primary);
  background: var(--color-primary-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.25s ease, background 0.2s ease;
}

.faq-accordion .accordion-button:not(.collapsed)::after {
  transform: rotate(45deg);
  background: var(--color-accent-light);
  color: #8A6D35;
}

.faq-accordion .accordion-body {
  padding: 0 24px 20px;
  color: var(--color-text-secondary);
  font-size: 15px;
  line-height: 1.75;
  border-top: 1px solid rgba(228,233,230,0.6);
  margin: 0 24px;
  padding-left: 0;
  padding-right: 0;
}

/* ===== CTA ===== */
.cta-banner {
  background: var(--color-primary-dark);
  padding: 72px 0;
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  right: -80px;
  top: -80px;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: rgba(201,160,99,0.08);
}

.cta-banner::after {
  content: '';
  position: absolute;
  right: 80px;
  bottom: -60px;
  width: 160px;
  height: 160px;
  border-radius: 50%;
  background: rgba(255,255,255,0.04);
}

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

.cta-title {
  font-size: 30px;
  font-weight: 700;
  color: #FFFFFF;
  line-height: 1.4;
  margin-bottom: 10px;
}

.cta-desc {
  color: rgba(255,255,255,0.75);
  font-size: 16px;
  line-height: 1.7;
  margin-bottom: 0;
}

.cta-privacy {
  font-size: 12px;
  color: rgba(255,255,255,0.4);
  margin-top: 12px;
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--color-primary-dark);
  color: rgba(255,255,255,0.85);
}

.site-footer .row {
  --bs-gutter-y: 32px;
}

.site-footer .footer-brand {
  font-size: 20px;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 14px;
  line-height: 1.4;
}

.site-footer .footer-desc {
  color: rgba(255,255,255,0.65);
  font-size: 14px;
  line-height: 1.7;
  margin-bottom: 14px;
  max-width: 320px;
}

.footer-icp {
  font-size: 12px;
  color: rgba(255,255,255,0.4);
  display: inline-block;
}

.footer-title {
  font-size: 18px;
  font-weight: 600;
  color: #FFFFFF;
  margin-bottom: 18px;
  padding-bottom: 8px;
  position: relative;
}

.footer-title::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 28px;
  height: 2px;
  background: var(--color-accent);
  border-radius: 2px;
}

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

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

.footer-links a {
  color: rgba(255,255,255,0.7);
  font-size: 14px;
  transition: color 0.2s ease, padding-left 0.2s ease;
  display: inline-block;
}

.footer-links a:hover {
  color: #FFFFFF;
  padding-left: 4px;
}

.footer-contact li {
  color: rgba(255,255,255,0.7);
  font-size: 14px;
  margin-bottom: 12px;
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.footer-contact i {
  color: var(--color-accent);
  font-size: 15px;
  line-height: 1.6;
}

.footer-bottom {
  background: #112E29;
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 16px 0;
  text-align: center;
}

.footer-copyright {
  color: rgba(255,255,255,0.5);
  font-size: 13px;
}

/* ===== Modal ===== */
.modal-backdrop.show {
  opacity: 0.5;
}

.modal-content {
  border: none;
  border-radius: 16px;
  box-shadow: var(--shadow-modal);
}

.modal-header {
  border-bottom: 1px solid var(--color-border);
  padding: 24px 32px 16px;
}

.modal-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-text);
}

.btn-close {
  filter: none;
  opacity: 0.5;
  transition: opacity 0.2s;
}

.btn-close:hover { opacity: 0.9; }

.modal-body {
  padding: 24px 32px;
}

.form-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-secondary);
  margin-bottom: 6px;
}

.form-control {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  font-family: var(--font-sans);
  font-size: 15px;
  color: var(--color-text);
  background: var(--color-card);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-control:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(31,78,71,0.1);
}

textarea.form-control {
  min-height: 100px;
  resize: vertical;
}

.modal-footer {
  border-top: 1px solid var(--color-border);
  padding: 16px 32px 24px;
}

.modal-footer .btn-accent {
  width: 100%;
  justify-content: center;
  padding: 12px 24px;
}

.modal-privacy {
  font-size: 12px;
  color: var(--color-text-muted);
  text-align: center;
  margin-top: 12px;
  margin-bottom: 0;
}

.modal-privacy a {
  color: var(--color-primary);
}

.modal-privacy a:hover {
  text-decoration: underline;
}

/* ===== 响应式 ===== */
@media (max-width: 991.98px) {
  .navbar-collapse {
    background: #FFFFFF;
    border-radius: 12px;
    box-shadow: var(--shadow-header);
    margin-top: 12px;
    padding: 16px 20px;
  }

  .navbar-nav .nav-link {
    padding: 10px 0;
    margin: 0;
    border-bottom: 1px solid rgba(228,233,230,0.6);
  }

  .navbar-nav .nav-link:last-of-type {
    border-bottom: none;
  }

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

  .navbar-nav .nav-link.active {
    color: var(--color-primary);
    background: var(--color-primary-light);
    border-radius: var(--radius-md);
    padding-left: 12px;
  }

  .header-cta {
    margin-left: 0;
    margin-top: 12px;
  }

  .header-cta .btn-accent {
    width: 100%;
    justify-content: center;
  }

  .category-hero {
    padding: 130px 0 56px;
    min-height: 280px;
  }

  .category-hero h1 {
    font-size: 30px;
  }

  .category-hero-deco {
    display: none;
  }

  .section {
    padding: 64px 0;
  }

  .process-section {
    padding: 64px 0;
  }

  .section-head h2 {
    font-size: 28px;
  }

  .section-head {
    margin-bottom: 40px;
  }

  .cta-banner {
    padding: 52px 0;
  }

  .cta-title {
    font-size: 24px;
  }
}

@media (max-width: 767.98px) {
  .navbar-brand {
    font-size: 17px;
  }

  .category-hero {
    padding: 120px 0 48px;
  }

  .category-hero h1 {
    font-size: 26px;
  }

  .category-hero h1 .hero-brand {
    font-size: 16px;
  }

  .category-hero-content > p {
    font-size: 15px;
  }

  .section,
  .process-section {
    padding: 48px 0;
  }

  .section-head h2 {
    font-size: 24px;
  }

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

  .feature-card {
    padding: 24px;
  }

  .solution-cover {
    height: 180px;
  }

  .solution-body {
    padding: 20px;
  }

  .cta-title {
    font-size: 22px;
  }

  .modal-header,
  .modal-body,
  .modal-footer {
    padding-left: 20px;
    padding-right: 20px;
  }
}

@media (max-width: 575.98px) {
  .container {
    padding-left: 20px;
    padding-right: 20px;
  }

  .cta-banner .btn-accent {
    width: 100%;
    justify-content: center;
  }

  .category-hero-inner {
    gap: 0;
  }
}

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

@media (hover: hover) {
  .feature-card,
  .solution-card,
  .process-step {
    transition: box-shadow 0.25s ease, transform 0.25s ease, border-color 0.25s ease;
  }
}

/* roulang page: article */
/* ===== 设计变量 ===== */
    :root {
      --color-primary: #1F4E47;
      --color-primary-dark: #173A35;
      --color-primary-light: #E8F0ED;
      --color-accent: #C9A063;
      --color-accent-dark: #B8914E;
      --color-accent-light: #F5EDDF;
      --color-bg: #F7F8F6;
      --color-card: #FFFFFF;
      --color-text: #1F2A28;
      --color-text-second: #5A6B66;
      --color-text-muted: #8A9B95;
      --color-border: #E4E9E6;
      --radius-card: 12px;
      --radius-btn: 6px;
      --radius-badge: 4px;
      --shadow-card: 0 2px 8px rgba(31,78,71,0.06);
      --shadow-card-hover: 0 8px 24px rgba(31,78,71,0.12);
      --shadow-header: 0 4px 16px rgba(31,78,71,0.1);
      --font-body: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC", sans-serif;
      --font-data: Georgia, "Times New Roman", serif;
    }

    /* ===== 基础 Reset ===== */
    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      font-family: var(--font-body);
      font-size: 16px;
      line-height: 1.75;
      color: var(--color-text);
      background-color: var(--color-bg);
      -webkit-font-smoothing: antialiased;
    }
    img { max-width: 100%; height: auto; }
    a { color: var(--color-primary); text-decoration: none; transition: color .25s ease; }
    a:hover { color: var(--color-primary-dark); }

    /* ===== 导航系统 ===== */
    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 1050;
      background: rgba(255,255,255,0.75);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(31,78,71,0.12);
      transition: all 0.25s ease;
    }
    .site-header.scrolled {
      background: rgba(255,255,255,0.98);
      box-shadow: var(--shadow-header);
      border-bottom-color: var(--color-border);
    }
    .navbar { padding: 14px 0; transition: all 0.25s ease; }
    .site-header.scrolled .navbar { padding: 8px 0; }
    .navbar-brand {
      font-size: 19px;
      font-weight: 700;
      color: var(--color-primary);
      line-height: 1.2;
      text-decoration: none;
    }
    .navbar-brand:hover { color: var(--color-primary); }
    .navbar-brand span {
      display: block;
      font-size: 11px;
      font-weight: 600;
      color: var(--color-accent);
      letter-spacing: 1.5px;
      margin-top: 2px;
    }
    .navbar-nav { gap: 4px; }
    .nav-link {
      color: var(--color-text);
      font-size: 15px;
      font-weight: 500;
      padding: 8px 16px !important;
      border-radius: var(--radius-btn);
      transition: all 0.2s ease;
      position: relative;
    }
    .nav-link::after {
      content: '';
      position: absolute;
      left: 16px;
      right: 16px;
      bottom: 2px;
      height: 2px;
      background: var(--color-primary);
      border-radius: 1px;
      transform: scaleX(0);
      transform-origin: left;
      transition: transform 0.25s ease;
    }
    .nav-link:hover {
      color: var(--color-primary);
      background: transparent;
    }
    .nav-link:hover::after,
    .nav-link.active::after { transform: scaleX(1); }
    .nav-link.active { color: var(--color-primary); font-weight: 600; }
    .header-cta .btn-accent { margin-left: 12px; }
    .navbar-toggler {
      border: none;
      padding: 6px;
      border-radius: 6px;
      background: transparent;
    }
    .navbar-toggler:focus { box-shadow: 0 0 0 3px rgba(31,78,71,0.15); }
    .navbar-toggler-icon {
      background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3E%3Cpath stroke='%231F4E47' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3E%3C/svg%3E");
    }
    @media (max-width: 991.98px) {
      .navbar-collapse {
        background: #fff;
        border-radius: 12px;
        margin-top: 12px;
        padding: 16px;
        box-shadow: 0 8px 24px rgba(31,78,71,0.1);
        border: 1px solid var(--color-border);
      }
      .navbar-nav { gap: 4px; }
      .nav-link { padding: 10px 16px !important; }
      .nav-link::after { display: none; }
      .nav-link.active { background: var(--color-primary-light); border-radius: 6px; }
      .header-cta { margin-top: 12px; width: 100%; }
      .header-cta .btn-accent { width: 100%; margin-left: 0; }
    }

    /* ===== 按钮体系 ===== */
    .btn-accent {
      background: var(--color-accent) !important;
      color: var(--color-text) !important;
      font-weight: 600;
      font-size: 15px;
      padding: 10px 24px;
      border-radius: var(--radius-btn);
      border: none;
      transition: all 0.25s ease;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 6px;
    }
    .btn-accent:hover {
      background: var(--color-accent-dark) !important;
      transform: translateY(-1px);
      box-shadow: 0 4px 12px rgba(201,160,99,0.3);
      color: #fff !important;
    }
    .btn-accent:focus { outline: 3px solid rgba(201,160,99,0.4); outline-offset: 2px; }
    .btn-outline-custom {
      background: transparent;
      border: 1.5px solid var(--color-primary);
      color: var(--color-primary);
      font-weight: 600;
      font-size: 15px;
      padding: 10px 28px;
      border-radius: var(--radius-btn);
      transition: all 0.2s ease;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 6px;
    }
    .btn-outline-custom:hover { background: var(--color-primary-light); color: var(--color-primary-dark); }
    .btn-outline-custom:focus { outline: 3px solid rgba(31,78,71,0.2); outline-offset: 2px; }

    /* ===== 文章头部 ===== */
    .article-hero {
      position: relative;
      background: linear-gradient(135deg, #E8F0ED 0%, #F0F5F2 55%, #F7F8F6 100%);
      padding: 170px 0 90px;
      overflow: hidden;
      border-bottom: 1px solid rgba(31,78,71,0.06);
    }
    .article-hero::before {
      content: '';
      position: absolute;
      top: 0;
      right: 0;
      width: 40%;
      height: 100%;
      background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      opacity: 0.05;
      z-index: 0;
    }
    .article-hero::after {
      content: '';
      position: absolute;
      top: 0;
      left: 8%;
      width: 1px;
      height: 110px;
      background: linear-gradient(180deg, var(--color-accent), transparent);
    }
    .article-hero .container { position: relative; z-index: 1; }
    .breadcrumb-wrap { margin-bottom: 26px; }
    .breadcrumb {
      display: flex;
      align-items: center;
      gap: 8px;
      margin: 0;
      padding: 0;
      font-size: 14px;
      color: var(--color-text-muted);
      list-style: none;
      flex-wrap: wrap;
    }
    .breadcrumb a { color: var(--color-text-second); text-decoration: none; transition: color .2s; }
    .breadcrumb a:hover { color: var(--color-primary); }
    .breadcrumb .sep { color: var(--color-border); }
    .breadcrumb .current { color: var(--color-text-muted); max-width: 260px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
    .article-title {
      font-size: 32px;
      line-height: 1.35;
      font-weight: 700;
      color: var(--color-text);
      margin-bottom: 16px;
      max-width: 800px;
    }
    .article-title::before {
      content: '';
      display: block;
      width: 32px;
      height: 3px;
      background: var(--color-accent);
      border-radius: 2px;
      margin-bottom: 16px;
    }
    .article-meta {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 20px;
      font-size: 14px;
      color: var(--color-text-second);
    }
    .meta-item { display: inline-flex; align-items: center; gap: 6px; }
    .meta-item i { color: var(--color-primary); font-size: 16px; }
    .category-badge {
      display: inline-block;
      background: var(--color-accent-light);
      color: #8A6D35;
      font-size: 13px;
      font-weight: 500;
      padding: 5px 12px;
      border-radius: var(--radius-badge);
      text-decoration: none;
      transition: all 0.2s ease;
    }
    .category-badge:hover { background: #EDDFC6; color: #6B4F23; }

    /* ===== 正文阅读区 ===== */
    .article-main { padding: 0 0 96px; background: var(--color-bg); }
    .article-card {
      background: var(--color-card);
      border-radius: 16px;
      box-shadow: 0 4px 24px rgba(31,78,71,0.08);
      padding: 48px 48px 40px;
      margin-top: -40px;
      position: relative;
      z-index: 2;
    }
    .article-content { font-size: 16px; line-height: 1.85; color: var(--color-text); }
    .article-content > *:first-child { margin-top: 0 !important; }
    .article-content h2 {
      font-size: 24px;
      font-weight: 700;
      margin: 2em 0 0.8em;
      color: var(--color-primary-dark);
    }
    .article-content h3 { font-size: 20px; font-weight: 600; margin: 1.8em 0 0.6em; color: var(--color-primary-dark); }
    .article-content h4 { font-size: 17px; font-weight: 600; margin: 1.6em 0 0.5em; color: var(--color-text); }
    .article-content p { margin-bottom: 1.5em; max-width: 62ch; }
    .article-content img {
      border-radius: 8px;
      max-width: 100%;
      height: auto;
      margin: 1.5em 0;
      display: block;
      box-shadow: var(--shadow-card);
    }
    .article-content blockquote {
      border-left: 4px solid var(--color-primary);
      background: var(--color-primary-light);
      padding: 18px 24px;
      border-radius: 0 8px 8px 0;
      font-style: italic;
      margin: 1.5em 0;
      color: var(--color-text-second);
    }
    .article-content ul,
    .article-content ol { margin-bottom: 1.5em; padding-left: 1.5em; }
    .article-content li { margin-bottom: 0.5em; }
    .article-content a { color: var(--color-primary); text-decoration: underline; text-underline-offset: 3px; }
    .article-content a:hover { color: var(--color-primary-dark); }
    .article-content table {
      width: 100%;
      border-collapse: collapse;
      margin: 1.5em 0;
      font-size: 15px;
      border: 1px solid var(--color-border);
      border-radius: 8px;
      overflow: hidden;
    }
    .article-content th,
    .article-content td { border: 1px solid var(--color-border); padding: 12px 16px; }
    .article-content th { background: var(--color-primary-light); font-weight: 600; color: var(--color-primary-dark); }
    .article-content hr { margin: 2em 0; border: none; border-top: 1px solid var(--color-border); }
    .article-content code {
      background: var(--color-primary-light);
      padding: 2px 7px;
      border-radius: 4px;
      font-size: 14px;
      color: var(--color-primary-dark);
    }
    .article-content pre {
      background: var(--color-primary-dark);
      color: #E8F0ED;
      padding: 20px 24px;
      border-radius: 8px;
      overflow-x: auto;
      margin: 1.5em 0;
      font-size: 14px;
      line-height: 1.7;
    }
    .article-content pre code { background: transparent; color: inherit; padding: 0; }

    /* ===== 上一篇 / 下一篇 ===== */
    .article-pager {
      display: flex;
      justify-content: space-between;
      gap: 16px;
      padding-top: 28px;
      margin-top: 40px;
      border-top: 1px solid var(--color-border);
    }
    .pager-link {
      flex: 1;
      max-width: 280px;
      display: block;
      text-decoration: none;
      padding: 14px 16px;
      border-radius: 8px;
      transition: all 0.25s ease;
      background: var(--color-bg);
      border: 1px solid transparent;
    }
    .pager-link:hover {
      background: var(--color-primary-light);
      border-color: rgba(31,78,71,0.15);
      transform: translateY(-2px);
      text-decoration: none;
    }
    .pager-link.pager-next { text-align: right; margin-left: auto; }
    .pager-direction {
      display: block;
      font-size: 13px;
      color: var(--color-text-muted);
      margin-bottom: 4px;
    }
    .pager-title {
      display: block;
      font-size: 15px;
      font-weight: 600;
      color: var(--color-text);
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
      transition: color 0.2s;
    }
    .pager-link:hover .pager-title { color: var(--color-primary); }

    /* ===== 相关推荐 ===== */
    .related-section { margin-top: 64px; }
    .section-header {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 32px;
    }
    .section-mark {
      display: inline-block;
      width: 12px;
      height: 4px;
      background: var(--color-accent);
      border-radius: 2px;
      flex-shrink: 0;
    }
    .section-header h2 {
      font-size: 26px;
      font-weight: 700;
      color: var(--color-text);
      margin: 0;
    }
    .related-card {
      display: flex;
      flex-direction: column;
      background: #fff;
      border-radius: var(--radius-card);
      overflow: hidden;
      box-shadow: var(--shadow-card);
      transition: transform 0.25s ease, box-shadow 0.25s ease;
      height: 100%;
      text-decoration: none;
    }
    .related-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-card-hover);
      text-decoration: none;
    }
    .related-card .card-img {
      position: relative;
      overflow: hidden;
      height: 165px;
      background: var(--color-primary-light);
    }
    .related-card .card-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .related-card:hover .card-img img { transform: scale(1.02); }
    .related-card .card-body {
      padding: 20px 20px 20px;
      display: flex;
      flex-direction: column;
      flex: 1;
    }
    .related-card .category-badge {
      align-self: flex-start;
      margin-bottom: 10px;
    }
    .related-card h3 {
      font-size: 17px;
      font-weight: 600;
      line-height: 1.4;
      color: var(--color-text);
      margin-bottom: 8px;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
      transition: color 0.2s;
    }
    .related-card:hover h3 { color: var(--color-primary); }
    .related-card p {
      font-size: 14px;
      color: var(--color-text-second);
      line-height: 1.6;
      margin-bottom: 12px;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }
    .related-card .card-footer-info {
      margin-top: auto;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 13px;
      color: var(--color-text-muted);
      border-top: 1px solid var(--color-border);
      padding-top: 12px;
    }
    .read-more {
      color: var(--color-primary);
      font-weight: 500;
      display: inline-flex;
      align-items: center;
      gap: 4px;
      font-size: 13px;
    }
    .read-more i { transition: transform 0.2s ease; }
    .related-card:hover .read-more i { transform: translateX(4px); }
    .back-entry { text-align: center; margin-top: 48px; }
    .back-entry .btn-outline-custom { min-width: 160px; }

    /* ===== 内容未找到 ===== */
    .not-found-wrap {
      background: #fff;
      border-radius: 16px;
      padding: 72px 48px;
      text-align: center;
      box-shadow: var(--shadow-card);
      margin-top: 100px;
      margin-bottom: 60px;
    }
    .nf-icon {
      width: 80px;
      height: 80px;
      margin: 0 auto 24px;
      display: flex;
      align-items: center;
      justify-content: center;
      background: var(--color-primary-light);
      border-radius: 50%;
      font-size: 36px;
      color: var(--color-primary);
    }
    .not-found-wrap h1 { font-size: 26px; font-weight: 700; color: var(--color-text); margin-bottom: 12px; }
    .not-found-wrap p { font-size: 15px; color: var(--color-text-second); margin-bottom: 28px; }

    /* ===== 表格弹层 ===== */
    .modal-content {
      border: none;
      border-radius: 16px;
      box-shadow: 0 24px 48px rgba(23,58,53,0.2);
    }
    .modal-header {
      border-bottom: 1px solid var(--color-border);
      padding: 24px 32px 16px;
    }
    .modal-header h3 { font-size: 20px; font-weight: 600; color: var(--color-text); margin: 0; }
    .modal-body { padding: 24px 32px 32px; }
    .modal-body label { font-size: 14px; font-weight: 600; color: var(--color-text-second); margin-bottom: 6px; }
    .modal-body .form-control {
      border: 1px solid var(--color-border);
      border-radius: 6px;
      padding: 12px 16px;
      font-size: 15px;
      transition: all 0.2s ease;
    }
    .modal-body .form-control:focus {
      border-color: var(--color-primary);
      box-shadow: 0 0 0 4px rgba(31,78,71,0.1);
    }
    .modal-body textarea.form-control { resize: vertical; min-height: 90px; }
    .privacy-note {
      margin: 16px 0 0;
      font-size: 12px;
      color: var(--color-text-muted);
      text-align: center;
    }
    .privacy-note a { color: var(--color-primary); text-decoration: none; }
    .btn-close { opacity: 0.6; }
    .btn-close:hover { opacity: 1; }

    /* ===== 页脚 ===== */
    .site-footer { background: var(--color-primary-dark); color: rgba(255,255,255,0.8); margin-top: auto; }
    .site-footer .footer-top { padding-top: 64px; padding-bottom: 40px; }
    .footer-brand {
      font-size: 20px;
      font-weight: 700;
      color: #fff;
      line-height: 1.3;
      margin-bottom: 16px;
    }
    .footer-desc {
      font-size: 14px;
      color: rgba(255,255,255,0.6);
      line-height: 1.7;
      margin-bottom: 16px;
      max-width: 320px;
    }
    .footer-icp { font-size: 12px; color: rgba(255,255,255,0.4); }
    .footer-title {
      font-size: 16px;
      font-weight: 600;
      color: #fff;
      margin-bottom: 16px;
      position: relative;
      padding-bottom: 8px;
    }
    .footer-title::after {
      content: '';
      position: absolute;
      left: 0;
      bottom: 0;
      width: 20px;
      height: 2px;
      background: var(--color-accent);
      border-radius: 1px;
    }
    .footer-links { list-style: none; padding: 0; margin: 0; }
    .footer-links li { margin-bottom: 10px; }
    .footer-links a {
      color: rgba(255,255,255,0.7);
      font-size: 14px;
      text-decoration: none;
      transition: all 0.2s ease;
      display: inline-block;
    }
    .footer-links a:hover { color: #fff; padding-left: 4px; }
    .footer-contact { list-style: none; padding: 0; margin: 0; }
    .footer-contact li { margin-bottom: 12px; font-size: 14px; color: rgba(255,255,255,0.7); display: flex; align-items: center; gap: 10px; }
    .footer-contact i { color: var(--color-accent); font-size: 15px; flex-shrink: 0; }
    .footer-bottom {
      border-top: 1px solid rgba(255,255,255,0.1);
      background: #112E29;
      padding: 20px 0;
      text-align: center;
    }
    .footer-copyright { font-size: 13px; color: rgba(255,255,255,0.45); }

    /* ===== 响应式 ===== */
    @media (max-width: 991.98px) {
      .article-hero { padding-top: 150px; padding-bottom: 80px; }
      .article-title { font-size: 28px; }
      .article-card { padding: 32px; margin-top: -32px; }
      .article-pager { flex-direction: column; }
      .pager-link { max-width: 100%; }
      .pager-link.pager-next { text-align: left; }
    }
    @media (max-width: 767.98px) {
      .article-hero { padding-top: 130px; padding-bottom: 64px; }
      .article-title { font-size: 24px; }
      .article-title::before { width: 24px; }
      .article-card { padding: 24px; margin-top: -24px; border-radius: 12px; }
      .article-meta { gap: 12px; }
      .related-section { margin-top: 48px; }
      .related-section { margin-top: 40px; }
      .section-header h2 { font-size: 22px; }
      .back-entry { margin-top: 36px; }
    }
    @media (max-width: 575.98px) {
      .article-hero { padding-top: 110px; padding-bottom: 48px; }
      .article-card { padding: 20px; margin-top: -16px; }
      .article-content { font-size: 15px; line-height: 1.8; }
      .article-content h2 { font-size: 20px; }
      .related-card .card-img { height: 140px; }
      .not-found-wrap { padding: 48px 24px; margin-top: 80px; }
      .related-card .card-body { padding: 16px; }
    }

/* roulang page: category2 */
:root {
            --color-primary: #1F4E47;
            --color-primary-dark: #173A35;
            --color-primary-light: #E8F0ED;
            --color-accent: #C9A063;
            --color-accent-light: #F5EDDF;
            --color-bg: #F7F8F6;
            --color-card: #FFFFFF;
            --color-text: #1F2A28;
            --color-text-secondary: #5A6B66;
            --color-text-muted: #8A9B95;
            --color-border: #E4E9E6;
            --radius-card: 12px;
            --radius-sm: 6px;
            --radius-badge: 4px;
            --shadow-card: 0 2px 8px rgba(31, 78, 71, 0.06);
            --shadow-card-hover: 0 8px 24px rgba(31, 78, 71, 0.12);
            --shadow-nav: 0 4px 16px rgba(31, 78, 71, 0.1);
            --font-body: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC", sans-serif;
            --font-number: Georgia, "Times New Roman", serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-body);
            background-color: var(--color-bg);
            color: var(--color-text);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

        a {
            text-decoration: none;
            color: var(--color-primary);
            transition: color 0.2s ease;
        }

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

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

        .container {
            max-width: 1200px;
        }

        .btn {
            border-radius: var(--radius-sm);
            padding: 12px 28px;
            font-weight: 600;
            font-size: 16px;
            line-height: 1;
            transition: all 0.25s ease;
            border: none;
        }

        .btn:focus,
        .btn-close:focus {
            outline: 3px solid rgba(201, 160, 99, 0.4);
            outline-offset: 2px;
            box-shadow: none;
        }

        .btn-accent {
            background-color: var(--color-accent);
            color: var(--color-text);
            border-radius: var(--radius-sm);
        }

        .btn-accent:hover {
            background-color: #B8914E;
            color: var(--color-text);
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(201, 160, 99, 0.3);
        }

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

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

        .btn-outline-primary:hover {
            background: var(--color-primary-light);
            color: var(--color-primary);
        }

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

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

        .section {
            padding: 96px 0;
        }

        .section.bg-white {
            background: var(--color-card);
        }

        .section.bg-light {
            background: var(--color-bg);
        }

        .section-head {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 48px;
        }

        .section-title-wrap {
            max-width: 720px;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 600;
            color: var(--color-accent);
            letter-spacing: 1px;
            margin-bottom: 12px;
        }

        .section-tag::before {
            content: "";
            width: 12px;
            height: 4px;
            border-radius: 2px;
            background: var(--color-accent);
            display: inline-block;
        }

        .section-title {
            font-size: 34px;
            font-weight: 700;
            line-height: 1.35;
            color: var(--color-text);
            margin: 0;
        }

        .section-desc {
            color: var(--color-text-secondary);
            font-size: 16px;
            margin: 12px 0 0;
            max-width: 58ch;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1080;
            background: rgba(255, 255, 255, 0.75);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(31, 78, 71, 0.12);
            box-shadow: 0 4px 20px rgba(31, 78, 71, 0.05);
            transition: background 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
        }

        .site-header.scrolled {
            background: #fff;
            border-bottom: 1px solid var(--color-border);
            box-shadow: var(--shadow-nav);
        }

        .navbar {
            padding: 0;
        }

        .navbar-brand {
            font-size: 20px;
            font-weight: 700;
            color: var(--color-text);
            line-height: 1.3;
            letter-spacing: 0.5px;
            padding: 18px 0;
            display: inline-flex;
            flex-direction: column;
        }

        .navbar-brand span {
            font-size: 13px;
            font-weight: 500;
            color: var(--color-primary);
            letter-spacing: 1.2px;
        }

        .navbar-brand:hover {
            color: var(--color-primary);
        }

        .navbar-nav {
            gap: 4px;
        }

        .navbar-nav .nav-link {
            font-size: 16px;
            font-weight: 500;
            color: var(--color-text);
            padding: 10px 16px;
            position: relative;
            transition: color 0.2s ease;
        }

        .navbar-nav .nav-link::after {
            content: "";
            position: absolute;
            left: 16px;
            right: 100%;
            bottom: 4px;
            height: 2px;
            background: var(--color-primary);
            border-radius: 2px;
            transition: right 0.25s ease;
        }

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

        .navbar-nav .nav-link:hover::after {
            right: 16px;
        }

        .navbar-nav .nav-link.active {
            color: var(--color-primary);
            font-weight: 600;
        }

        .navbar-nav .nav-link.active::after {
            right: 16px;
        }

        .header-cta {
            padding: 8px 0;
        }

        .navbar-toggler {
            border: none;
            padding: 8px;
            outline: none;
        }

        .navbar-toggler:focus {
            box-shadow: none;
        }

        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3E%3Cpath stroke='%231F4E47' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3E%3C/svg%3E");
        }

        @media (max-width: 991.98px) {
            .navbar-collapse {
                background: #fff;
                border-radius: 0 0 var(--radius-card) var(--radius-card);
                border: 1px solid var(--color-border);
                border-top: 0;
                padding: 16px 20px 20px;
                box-shadow: var(--shadow-nav);
                margin-top: 0;
            }

            .navbar-nav {
                gap: 0;
            }

            .navbar-nav .nav-link {
                padding: 12px 8px;
                border-bottom: 1px solid rgba(228, 233, 230, 0.6);
            }

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

            .header-cta {
                padding-top: 16px;
            }
        }

        /* ===== Modal ===== */
        .modal-content {
            border: none;
            border-radius: 16px;
            padding: 8px;
            box-shadow: 0 24px 48px rgba(23, 58, 53, 0.2);
        }

        .modal-header {
            border-bottom: 1px solid var(--color-border);
            padding: 20px 24px 16px;
        }

        .modal-title {
            font-size: 22px;
            font-weight: 700;
            color: var(--color-text);
        }

        .modal-body {
            padding: 24px;
        }

        .modal-backdrop.show {
            background: rgba(23, 58, 53, 0.5);
            backdrop-filter: blur(4px);
        }

        .form-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-text-secondary);
            margin-bottom: 8px;
        }

        .form-control {
            border-radius: var(--radius-sm);
            border: 1px solid var(--color-border);
            padding: 12px 16px;
            font-size: 15px;
            background: #fff;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }

        .form-control:focus {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 4px rgba(31, 78, 71, 0.1);
        }

        /* ===== Category Hero ===== */
        .category-hero {
            background: var(--color-primary-light);
            padding: 180px 0 88px;
            position: relative;
            overflow: hidden;
            min-height: 280px;
        }

        .category-hero::before {
            content: "";
            position: absolute;
            top: -80px;
            right: -60px;
            width: 340px;
            height: 340px;
            border: 2px solid rgba(201, 160, 99, 0.25);
            border-radius: 50%;
        }

        .category-hero::after {
            content: "";
            position: absolute;
            top: 40px;
            right: 100px;
            width: 120px;
            height: 120px;
            border: 2px solid rgba(31, 78, 71, 0.14);
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.35);
        }

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

        .category-breadcrumb {
            font-size: 14px;
            color: var(--color-text-muted);
            margin-bottom: 16px;
        }

        .category-breadcrumb a {
            color: var(--color-text-secondary);
        }

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

        .category-breadcrumb .sep {
            margin: 0 8px;
        }

        .category-breadcrumb .current {
            color: var(--color-primary);
            font-weight: 600;
        }

        .category-hero-title {
            font-size: 36px;
            font-weight: 700;
            color: var(--color-text);
            line-height: 1.35;
            margin-bottom: 12px;
        }

        .category-hero-title span {
            color: var(--color-primary);
        }

        .category-hero-sub {
            font-size: 16px;
            color: var(--color-text-secondary);
            max-width: 600px;
            margin-bottom: 0;
            line-height: 1.8;
        }

        @media (max-width: 767.98px) {
            .category-hero {
                padding: 140px 0 56px;
            }

            .category-hero-title {
                font-size: 26px;
            }

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

            .section {
                padding: 56px 0;
            }

            .section-title {
                font-size: 26px;
            }
        }

        /* ===== Capability Cards ===== */
        .capability-card {
            background: var(--color-card);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            padding: 32px 28px;
            height: 100%;
            transition: box-shadow 0.25s ease, transform 0.25s ease, border-color 0.25s ease;
        }

        .capability-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
            border-color: rgba(201, 160, 99, 0.5);
        }

        .capability-icon {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--color-primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-primary);
            font-size: 20px;
            margin-bottom: 20px;
        }

        .capability-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 12px;
        }

        .capability-desc {
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.7;
            margin: 0;
        }

        /* ===== Scenario ===== */
        .scenario-card {
            background: var(--color-card);
            border-radius: var(--radius-card);
            overflow: hidden;
            border: 1px solid var(--color-border);
            height: 100%;
            transition: box-shadow 0.25s ease, transform 0.25s ease;
        }

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

        .scenario-card-img {
            aspect-ratio: 3 / 2;
            overflow: hidden;
        }

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

        .scenario-card:hover .scenario-card-img img {
            transform: scale(1.02);
        }

        .scenario-card-body {
            padding: 24px;
        }

        .scenario-card-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 10px;
        }

        .scenario-card-text {
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.7;
            margin: 0;
        }

        /* ===== Process ===== */
        .process-section {
            background: var(--color-primary-dark);
            color: #fff;
        }

        .process-section .section-title,
        .process-section .section-desc {
            color: #fff;
        }

        .process-section .section-tag {
            color: var(--color-accent);
        }

        .process-section .section-tag::before {
            background: var(--color-accent);
        }

        .process-step {
            text-align: center;
            padding: 24px 16px;
            position: relative;
        }

        .process-step-num {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--color-accent);
            color: var(--color-text);
            font-family: var(--font-number);
            font-size: 22px;
            font-weight: 700;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
            position: relative;
            z-index: 2;
        }

        .process-step::before {
            content: "";
            position: absolute;
            top: 52px;
            left: calc(50% + 40px);
            right: calc(-50% + 40px);
            height: 2px;
            background: rgba(201, 160, 99, 0.3);
            z-index: 1;
        }

        .process-step:last-child::before {
            display: none;
        }

        .process-step-title {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 8px;
        }

        .process-step-text {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.6;
            max-width: 180px;
            margin: 0 auto;
        }

        @media (max-width: 991.98px) {
            .process-step::before {
                display: none;
            }

            .process-step {
                padding: 16px;
            }
        }

        /* ===== Stats ===== */
        .stats-section {
            background: var(--color-card);
            position: relative;
        }

        .stats-section::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--color-accent-light);
        }

        .stat-item {
            text-align: center;
            padding: 32px 24px;
            border-left: 1px dashed var(--color-border);
        }

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

        .stat-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-text-secondary);
            margin-bottom: 8px;
        }

        .stat-number {
            font-family: var(--font-number);
            font-size: 42px;
            font-weight: 700;
            color: var(--color-accent);
            line-height: 1.2;
        }

        .stat-desc {
            font-size: 13px;
            color: var(--color-text-muted);
            margin-top: 8px;
        }

        @media (max-width: 767.98px) {
            .stat-item {
                border-left: none;
                border-top: 1px dashed var(--color-border);
                padding: 24px 12px;
            }

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

            .stat-number {
                font-size: 32px;
            }
        }

        /* ===== FAQ ===== */
        .faq-item {
            border: 1px solid var(--color-border);
            border-radius: 8px;
            padding: 20px 24px;
            background: var(--color-card);
            margin-bottom: 12px;
            transition: border-color 0.25s ease, box-shadow 0.25s ease;
        }

        .faq-item.active {
            border-color: var(--color-primary-light);
            border-width: 1.5px;
            background: #FBFCFA;
            box-shadow: var(--shadow-card);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            cursor: pointer;
            user-select: none;
        }

        .faq-question h4 {
            font-size: 17px;
            font-weight: 600;
            color: var(--color-text);
            margin: 0;
            flex: 1;
        }

        .faq-toggle {
            width: 24px;
            height: 24px;
            min-width: 24px;
            border-radius: 50%;
            background: var(--color-primary-light);
            color: var(--color-primary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            transition: transform 0.25s ease, background 0.25s ease;
        }

        .faq-item.active .faq-toggle {
            transform: rotate(45deg);
            background: var(--color-accent);
            color: var(--color-text);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.7;
        }

        .faq-item.active .faq-answer {
            max-height: 400px;
            padding-top: 14px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--color-primary-dark);
            padding: 72px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::after {
            content: "";
            position: absolute;
            right: -100px;
            bottom: -100px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(201, 160, 99, 0.08);
        }

        .cta-title {
            font-size: 30px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }

        .cta-desc {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 0;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--color-primary-dark);
            color: rgba(255, 255, 255, 0.7);
        }

        .site-footer .row {
            padding: 56px 0 32px;
        }

        .footer-brand {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            line-height: 1.4;
        }

        .footer-desc {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            max-width: 320px;
            line-height: 1.7;
        }

        .footer-icp {
            display: inline-block;
            margin-top: 16px;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.45);
        }

        .footer-title {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
            position: relative;
            padding-bottom: 8px;
        }

        .footer-title::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 28px;
            height: 2px;
            background: var(--color-accent);
        }

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

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

        .footer-links a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            transition: color 0.2s ease;
        }

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

        .footer-contact li {
            font-size: 14px;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            background: #112E29;
            padding: 16px 0;
        }

        .footer-copyright {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
        }

        @media (max-width: 767.98px) {
            .site-footer .row {
                padding: 40px 0 24px;
            }
        }

        /* ===== Misc ===== */
        .fw-700 {
            font-weight: 700;
        }

        .text-accent {
            color: var(--color-accent) !important;
        }

/* roulang page: category3 */
/* ===== 设计变量 ===== */
    :root {
      --color-primary: #1F4E47;
      --color-primary-dark: #173A35;
      --color-primary-light: #E8F0ED;
      --color-accent: #C9A063;
      --color-accent-dark: #B8914E;
      --color-accent-light: #F5EDDF;
      --color-bg: #F7F8F6;
      --color-card: #FFFFFF;
      --color-text: #1F2A28;
      --color-text-secondary: #5A6B66;
      --color-text-muted: #8A9B95;
      --color-border: #E4E9E6;
      --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC", sans-serif;
      --font-serif: Georgia, "Times New Roman", serif;
      --radius-card: 12px;
      --radius-btn: 6px;
      --radius-badge: 4px;
      --radius-sm: 8px;
      --shadow-card: 0 2px 8px rgba(31, 78, 71, 0.06);
      --shadow-card-hover: 0 8px 24px rgba(31, 78, 71, 0.12);
      --shadow-header: 0 4px 16px rgba(31, 78, 71, 0.1);
      --shadow-modal: 0 24px 48px rgba(23, 58, 53, 0.2);
      --section-space: 96px;
    }

    /* ===== Reset & Base ===== */
    *,
    *::before,
    *::after {
      box-sizing: border-box;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      font-family: var(--font-sans);
      font-size: 16px;
      line-height: 1.75;
      color: var(--color-text);
      background: var(--color-bg);
      -webkit-font-smoothing: antialiased;
    }
    h1,
    h2,
    h3,
    h4,
    h5,
    h6 {
      font-family: var(--font-sans);
      color: var(--color-text);
      font-weight: 700;
      line-height: 1.35;
    }
    p {
      margin-bottom: 1.2em;
    }
    a {
      color: var(--color-primary);
      text-decoration: none;
      transition: color 0.2s ease;
    }
    a:hover {
      color: var(--color-primary-dark);
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    .container {
      max-width: 1200px;
    }

    /* ===== Bootstrap 默认覆盖 ===== */
    .btn {
      border-radius: var(--radius-btn);
      font-weight: 600;
      font-size: 16px;
      line-height: 1;
      padding: 12px 28px;
      transition: all 0.25s ease;
    }
    .btn:focus-visible {
      outline: 3px solid rgba(201, 160, 99, 0.4);
      outline-offset: 2px;
      box-shadow: none;
    }
    .btn-accent {
      background: var(--color-accent);
      color: var(--color-text);
      border: none;
    }
    .btn-accent:hover {
      background: var(--color-accent-dark);
      color: var(--color-text);
      transform: translateY(-1px);
      box-shadow: 0 4px 12px rgba(201, 160, 99, 0.3);
    }
    .btn-accent:active {
      transform: translateY(0);
    }
    .btn-outline-primary {
      background: transparent;
      border: 1.5px solid var(--color-primary);
      color: var(--color-primary);
    }
    .btn-outline-primary:hover {
      background: var(--color-primary-light);
      color: var(--color-primary-dark);
    }
    .card {
      border: none;
      border-radius: var(--radius-card);
      background: var(--color-card);
      box-shadow: var(--shadow-card);
    }
    .form-control {
      border: 1px solid var(--color-border);
      border-radius: var(--radius-btn);
      padding: 12px 16px;
      font-size: 15px;
      transition: all 0.2s ease;
    }
    .form-control:focus {
      border-color: var(--color-primary);
      box-shadow: 0 0 0 4px rgba(31, 78, 71, 0.1);
    }
    .modal-content {
      border: none;
      border-radius: 16px;
      box-shadow: var(--shadow-modal);
    }
    .modal-header {
      border-bottom: 1px solid var(--color-border);
      padding: 24px 32px 16px;
    }
    .modal-body {
      padding: 24px 32px 32px;
    }
    .modal-title {
      font-size: 22px;
      font-weight: 600;
    }
    .btn-close:focus {
      box-shadow: 0 0 0 3px rgba(31, 78, 71, 0.15);
    }

    /* ===== Header / 导航 ===== */
    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.75);
      -webkit-backdrop-filter: blur(12px);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(31, 78, 71, 0.12);
      box-shadow: 0 4px 20px rgba(31, 78, 71, 0.05);
      transition: all 0.25s ease;
    }
    .site-header.scrolled {
      background: #FFFFFF;
      border-bottom-color: var(--color-border);
      box-shadow: var(--shadow-header);
    }
    .navbar {
      padding-top: 10px;
      padding-bottom: 10px;
    }
    .navbar-brand {
      font-size: 20px;
      font-weight: 700;
      color: var(--color-primary);
      line-height: 1.3;
      letter-spacing: 0.02em;
    }
    .navbar-brand span {
      color: var(--color-accent-dark);
      font-weight: 600;
      font-size: 15px;
      display: block;
    }
    .navbar-brand:hover {
      color: var(--color-primary);
    }
    .navbar-nav {
      gap: 4px;
    }
    .navbar .nav-link {
      font-size: 15.5px;
      font-weight: 500;
      color: var(--color-text);
      padding: 8px 14px;
      position: relative;
      border-radius: var(--radius-badge);
      transition: color 0.2s ease, background 0.2s ease;
    }
    .navbar .nav-link::after {
      content: "";
      position: absolute;
      left: 14px;
      right: 14px;
      bottom: 2px;
      height: 2px;
      background: var(--color-primary);
      border-radius: 2px;
      width: 0;
      transition: width 0.22s ease;
    }
    .navbar .nav-link:hover {
      color: var(--color-primary);
      background: rgba(31, 78, 71, 0.04);
    }
    .navbar .nav-link:hover::after {
      width: calc(100% - 28px);
    }
    .navbar .nav-link.active {
      color: var(--color-primary);
      font-weight: 600;
    }
    .navbar .nav-link.active::after {
      width: calc(100% - 28px);
    }
    .header-cta {
      margin-left: 16px;
    }
    .header-cta .btn-accent {
      padding: 10px 24px;
      font-size: 15px;
    }
    .navbar-toggler {
      border: 1px solid var(--color-border);
      border-radius: var(--radius-btn);
      padding: 8px 10px;
    }
    .navbar-toggler:focus {
      box-shadow: 0 0 0 3px rgba(31, 78, 71, 0.15);
    }
    @media (max-width: 991.98px) {
      .navbar-collapse {
        background: rgba(255, 255, 255, 0.98);
        border-radius: var(--radius-card);
        padding: 16px;
        margin-top: 12px;
        box-shadow: var(--shadow-header);
        border: 1px solid var(--color-border);
      }
      .navbar-nav {
        gap: 0;
      }
      .navbar .nav-link {
        padding: 12px 12px;
        font-size: 16px;
      }
      .navbar .nav-link::after {
        display: none;
      }
      .navbar .nav-link:hover,
      .navbar .nav-link.active {
        background: var(--color-primary-light);
      }
      .header-cta {
        margin-left: 0;
        margin-top: 12px;
        padding-top: 12px;
        border-top: 1px solid var(--color-border);
      }
      .header-cta .btn-accent {
        width: 100%;
      }
      .navbar-brand span {
        font-size: 14px;
      }
    }

    /* ===== 分类 Hero ===== */
    .category-hero {
      position: relative;
      padding: 180px 0 72px;
      background:
        linear-gradient(100deg, rgba(232, 240, 237, 0.96) 0%, rgba(232, 240, 237, 0.82) 45%, rgba(232, 240, 237, 0.4) 100%),
        url('/assets/images/backpic/back-1.webp') right center / cover no-repeat;
      border-bottom: 1px solid var(--color-border);
      overflow: hidden;
    }
    .category-hero::before {
      content: "";
      position: absolute;
      left: 5%;
      top: 50%;
      bottom: 40px;
      width: 2px;
      background: var(--color-accent);
      opacity: 0.6;
      transform: translateY(-20px);
    }
    .category-hero::after {
      content: "";
      position: absolute;
      right: 7%;
      top: 40px;
      width: 130px;
      height: 130px;
      border: 2px solid var(--color-accent);
      border-radius: 28px;
      transform: rotate(18deg);
      opacity: 0.3;
      pointer-events: none;
    }
    .category-hero-inner {
      position: relative;
      z-index: 2;
      max-width: 860px;
    }
    .category-hero-label {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 13px;
      font-weight: 600;
      letter-spacing: 0.06em;
      color: var(--color-primary);
      background: rgba(255, 255, 255, 0.7);
      border: 1px solid rgba(31, 78, 71, 0.12);
      border-radius: 999px;
      padding: 6px 16px;
      margin-bottom: 18px;
      backdrop-filter: blur(4px);
    }
    .category-hero-label i {
      font-size: 14px;
      color: var(--color-accent);
    }
    .category-hero-title {
      font-size: 42px;
      font-weight: 700;
      line-height: 1.25;
      margin-bottom: 6px;
      color: var(--color-text);
    }
    .category-hero-title .hero-brand {
      display: block;
      font-size: 22px;
      font-weight: 600;
      color: var(--color-primary);
      margin-top: 10px;
      letter-spacing: 0.02em;
    }
    .category-hero-sub {
      font-size: 16px;
      color: var(--color-text-secondary);
      max-width: 62ch;
      margin: 18px 0 28px;
      line-height: 1.8;
    }
    .category-hero-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 24px;
    }
    .hero-meta-item {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 14px;
      color: var(--color-primary);
      background: rgba(255, 255, 255, 0.75);
      border-radius: 999px;
      padding: 6px 14px;
      border: 1px solid rgba(31, 78, 71, 0.1);
    }
    .hero-meta-item i {
      color: var(--color-accent);
    }
    @media (max-width: 767.98px) {
      .category-hero {
        padding: 150px 0 56px;
      }
      .category-hero::before {
        left: 4%;
      }
      .category-hero::after {
        width: 72px;
        height: 72px;
        right: 4%;
        top: 28px;
        border-radius: 16px;
      }
      .category-hero-title {
        font-size: 30px;
      }
      .category-hero-title .hero-brand {
        font-size: 18px;
      }
      .category-hero-sub {
        font-size: 15px;
      }
    }

    /* ===== 通用板块 ===== */
    .section {
      padding-top: var(--section-space);
      padding-bottom: var(--section-space);
    }
    .section-white {
      background: #FFFFFF;
    }
    .section-gray {
      background: var(--color-bg);
    }
    .section-head {
      margin-bottom: 48px;
    }
    .section-head.text-center .section-badge {
      margin-left: auto;
      margin-right: auto;
    }
    .section-badge {
      display: block;
      width: 44px;
      height: 4px;
      background: var(--color-accent);
      border-radius: 2px;
      margin-bottom: 18px;
    }
    .section-title {
      font-size: 34px;
      font-weight: 700;
      margin-bottom: 16px;
      color: var(--color-text);
    }
    .section-desc {
      font-size: 16px;
      color: var(--color-text-secondary);
      max-width: 62ch;
      line-height: 1.8;
    }
    .text-center .section-desc {
      margin-left: auto;
      margin-right: auto;
    }
    @media (max-width: 575.98px) {
      .section {
        --section-space: 56px;
      }
      .section-title {
        font-size: 26px;
      }
      .section-head {
        margin-bottom: 32px;
      }
    }

    /* ===== 核心能力 ===== */
    .feature-card {
      background: var(--color-card);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-card);
      padding: 32px 28px;
      height: 100%;
      transition: box-shadow 0.25s ease, transform 0.25s ease, border-color 0.25s ease;
    }
    .feature-card:hover {
      box-shadow: var(--shadow-card-hover);
      transform: translateY(-4px);
      border-color: rgba(201, 160, 99, 0.4);
    }
    .feature-icon {
      width: 56px;
      height: 56px;
      border-radius: 50%;
      background: var(--color-primary-light);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 22px;
    }
    .feature-icon i {
      font-size: 24px;
      color: var(--color-primary);
    }
    .feature-card h3 {
      font-size: 20px;
      font-weight: 600;
      margin-bottom: 12px;
    }
    .feature-card p {
      font-size: 15px;
      color: var(--color-text-secondary);
      line-height: 1.75;
      margin-bottom: 0;
    }
    @media (max-width: 575.98px) {
      .feature-card {
        padding: 24px 20px;
      }
    }

    /* ===== 数据条带 ===== */
    .data-strip {
      background: var(--color-accent-light);
      border-radius: var(--radius-card);
      padding: 40px 24px;
      margin-top: 56px;
    }
    .data-item {
      text-align: center;
      padding: 12px 8px;
      position: relative;
    }
    .data-item + .data-item {
      border-left: 1px dashed rgba(31, 78, 71, 0.15);
    }
    .data-num {
      font-family: var(--font-serif);
      font-size: 42px;
      font-weight: 700;
      color: var(--color-text);
      line-height: 1.2;
      display: block;
      margin-bottom: 6px;
    }
    .data-label {
      font-size: 15px;
      font-weight: 600;
      color: var(--color-primary);
      margin-bottom: 4px;
    }
    .data-desc {
      font-size: 13px;
      color: var(--color-text-secondary);
    }
    @media (max-width: 767.98px) {
      .data-strip {
        padding: 24px 12px;
      }
      .data-item {
        padding: 16px 4px;
      }
      .data-item + .data-item {
        border-left: none;
        border-top: 1px dashed rgba(31, 78, 71, 0.15);
      }
      .data-num {
        font-size: 32px;
      }
    }

    /* ===== 适用场景 ===== */
    .scene-card {
      background: var(--color-card);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-card);
      padding: 32px 28px;
      height: 100%;
      transition: box-shadow 0.25s ease, transform 0.25s ease;
    }
    .scene-card:hover {
      box-shadow: var(--shadow-card-hover);
      transform: translateY(-4px);
    }
    .scene-icon {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      background: var(--color-primary);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 20px;
    }
    .scene-icon i {
      font-size: 20px;
      color: #FFFFFF;
    }
    .scene-card h3 {
      font-size: 20px;
      font-weight: 600;
      margin-bottom: 12px;
    }
    .scene-card p {
      font-size: 15px;
      color: var(--color-text-secondary);
      line-height: 1.75;
      margin-bottom: 0;
    }
    .scene-list {
      list-style: none;
      padding: 0;
      margin: 18px 0 0;
    }
    .scene-list li {
      font-size: 14px;
      color: var(--color-text-secondary);
      padding: 4px 0;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .scene-list li i {
      color: var(--color-accent);
      font-size: 13px;
    }

    /* ===== 服务流程 ===== */
    .process-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 28px;
      position: relative;
    }
    .process-step {
      background: var(--color-card);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-card);
      padding: 36px 24px 30px;
      text-align: center;
      position: relative;
      transition: box-shadow 0.25s ease, transform 0.25s ease;
    }
    .process-step:hover {
      box-shadow: var(--shadow-card-hover);
      transform: translateY(-4px);
    }
    .process-step::after {
      content: "";
      position: absolute;
      top: 48px;
      right: -14px;
      width: 28px;
      height: 2px;
      background: var(--color-border);
      z-index: 1;
    }
    .process-step:last-child::after {
      display: none;
    }
    .step-num {
      font-family: var(--font-serif);
      font-size: 14px;
      font-weight: 700;
      color: var(--color-accent-dark);
      display: block;
      margin-bottom: 8px;
      letter-spacing: 0.04em;
    }
    .step-icon {
      width: 52px;
      height: 52px;
      border-radius: 50%;
      background: var(--color-primary-light);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 18px;
    }
    .step-icon i {
      font-size: 22px;
      color: var(--color-primary);
    }
    .process-step h3 {
      font-size: 18px;
      font-weight: 600;
      margin-bottom: 10px;
    }
    .process-step p {
      font-size: 14px;
      color: var(--color-text-secondary);
      line-height: 1.7;
      margin-bottom: 0;
    }
    @media (max-width: 991.98px) {
      .process-steps {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
      }
      .process-step::after {
        display: none;
      }
    }
    @media (max-width: 575.98px) {
      .process-steps {
        grid-template-columns: 1fr;
      }
      .process-step {
        padding: 28px 20px;
      }
    }

    /* ===== 安全实践卡片 ===== */
    .practice-card {
      background: var(--color-card);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-card);
      overflow: hidden;
      height: 100%;
      transition: box-shadow 0.25s ease, transform 0.25s ease;
    }
    .card-thumb {
      position: relative;
      aspect-ratio: 16 / 9;
      overflow: hidden;
      background: var(--color-primary-light);
    }
    .card-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .card-tag {
      position: absolute;
      left: 14px;
      bottom: 14px;
      background: var(--color-accent-light);
      color: var(--color-accent-dark);
      font-size: 12px;
      font-weight: 600;
      letter-spacing: 0.04em;
      border-radius: var(--radius-badge);
      padding: 4px 12px;
      border: 1px solid rgba(201, 160, 99, 0.2);
      backdrop-filter: blur(4px);
    }
    .practice-card .card-body {
      padding: 24px;
    }
    .practice-card .card-body h3 {
      font-size: 18px;
      font-weight: 600;
      margin-bottom: 10px;
      line-height: 1.45;
    }
    .practice-card .card-body p {
      font-size: 14px;
      color: var(--color-text-secondary);
      line-height: 1.7;
      margin-bottom: 16px;
      display: -webkit-box;
      -webkit-line-clamp: 3;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }
    .card-link {
      font-size: 14px;
      font-weight: 600;
      color: var(--color-primary);
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .card-link i {
      transition: transform 0.2s ease;
    }
    .card-link:hover {
      color: var(--color-primary-dark);
    }
    .card-link:hover i {
      transform: translateX(4px);
    }
    @media (hover: hover) {
      .practice-card:hover {
        box-shadow: var(--shadow-card-hover);
        transform: translateY(-4px);
      }
      .practice-card:hover .card-thumb img {
        transform: scale(1.03);
      }
    }

    /* ===== FAQ ===== */
    .faq-section {
      background: var(--color-card);
    }
    .faq-side {
      padding-right: 40px;
    }
    .faq-side .section-badge {
      margin-bottom: 18px;
    }
    .faq-side h2 {
      font-size: 30px;
      font-weight: 700;
      margin-bottom: 16px;
    }
    .faq-side p {
      font-size: 15px;
      color: var(--color-text-secondary);
      line-height: 1.8;
      max-width: 40ch;
    }
    .faq-contact-link {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      margin-top: 12px;
      font-weight: 600;
      color: var(--color-primary);
    }
    .faq-contact-link i {
      transition: transform 0.2s ease;
    }
    .faq-contact-link:hover i {
      transform: translateX(4px);
    }
    .faq-list {
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    .faq-item {
      border: 1px solid var(--color-border);
      border-radius: 8px;
      background: var(--color-card);
      overflow: hidden;
      transition: border-color 0.25s ease, box-shadow 0.25s ease;
    }
    .faq-item.active {
      border-color: rgba(31, 78, 71, 0.3);
      box-shadow: 0 2px 12px rgba(31, 78, 71, 0.06);
    }
    .faq-question {
      width: 100%;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 16px;
      padding: 20px 24px;
      border: none;
      background: transparent;
      font-size: 16px;
      font-weight: 600;
      font-family: var(--font-sans);
      color: var(--color-text);
      text-align: left;
      cursor: pointer;
      transition: color 0.2s ease;
    }
    .faq-question:hover {
      color: var(--color-primary);
    }
    .faq-icon {
      width: 28px;
      height: 28px;
      border-radius: 50%;
      background: var(--color-primary-light);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      color: var(--color-primary);
      font-size: 14px;
      flex-shrink: 0;
      transition: transform 0.25s ease, background 0.25s ease;
    }
    .faq-item.active .faq-icon {
      transform: rotate(45deg);
      background: var(--color-accent-light);
      color: var(--color-accent-dark);
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease, padding 0.3s ease;
    }
    .faq-item.active .faq-answer {
      max-height: 260px;
      padding: 0 24px 22px;
    }
    .faq-answer p {
      font-size: 14.5px;
      color: var(--color-text-secondary);
      line-height: 1.8;
      margin-bottom: 0;
      border-top: 1px solid var(--color-border);
      padding-top: 16px;
    }
    @media (max-width: 991.98px) {
      .faq-side {
        padding-right: 0;
        margin-bottom: 32px;
      }
    }
    @media (max-width: 575.98px) {
      .faq-question {
        padding: 16px 18px;
        font-size: 15px;
      }
      .faq-item.active .faq-answer {
        padding: 0 18px 18px;
      }
    }

    /* ===== CTA ===== */
    .cta-section {
      background: var(--color-primary-dark);
      padding: 90px 0;
      position: relative;
      overflow: hidden;
    }
    .cta-section::before {
      content: "";
      position: absolute;
      right: -60px;
      top: -60px;
      width: 240px;
      height: 240px;
      border-radius: 50%;
      border: 34px solid rgba(255, 255, 255, 0.04);
    }
    .cta-section::after {
      content: "";
      position: absolute;
      left: -40px;
      bottom: -80px;
      width: 180px;
      height: 180px;
      border-radius: 50%;
      border: 24px solid rgba(201, 160, 99, 0.08);
    }
    .cta-content {
      position: relative;
      z-index: 2;
      text-align: center;
      max-width: 680px;
      margin: 0 auto;
    }
    .cta-content h2 {
      color: #FFFFFF;
      font-size: 34px;
      font-weight: 700;
      margin-bottom: 16px;
    }
    .cta-content p {
      color: rgba(255, 255, 255, 0.75);
      font-size: 16px;
      line-height: 1.8;
      margin-bottom: 32px;
    }
    .cta-content .btn-accent {
      font-size: 17px;
      padding: 14px 40px;
    }
    @media (max-width: 575.98px) {
      .cta-section {
        padding: 64px 0;
      }
      .cta-content h2 {
        font-size: 26px;
      }
    }

    /* ===== Footer ===== */
    .site-footer {
      background: var(--color-primary-dark);
      color: rgba(255, 255, 255, 0.8);
    }
    .footer-brand {
      font-size: 22px;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 14px;
      line-height: 1.4;
    }
    .footer-brand span {
      color: var(--color-accent);
    }
    .footer-desc {
      font-size: 14px;
      line-height: 1.8;
      color: rgba(255, 255, 255, 0.65);
      max-width: 34ch;
      margin-bottom: 16px;
    }
    .footer-icp {
      font-size: 13px;
      color: rgba(255, 255, 255, 0.4);
    }
    .footer-title {
      font-size: 17px;
      color: #FFFFFF;
      font-weight: 600;
      margin-bottom: 18px;
      position: relative;
      padding-bottom: 10px;
    }
    .footer-title::after {
      content: "";
      display: block;
      width: 28px;
      height: 2px;
      background: var(--color-accent);
      border-radius: 2px;
      position: absolute;
      bottom: 0;
      left: 0;
    }
    .footer-links {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links a {
      color: rgba(255, 255, 255, 0.7);
      font-size: 14.5px;
      transition: color 0.2s ease, padding-left 0.2s ease;
    }
    .footer-links a:hover {
      color: #FFFFFF;
      padding-left: 4px;
    }
    .footer-contact {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-contact li {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 14.5px;
      color: rgba(255, 255, 255, 0.7);
      margin-bottom: 12px;
    }
    .footer-contact li i {
      color: var(--color-accent);
      font-size: 15px;
      width: 18px;
      text-align: center;
    }
    .footer-bottom {
      background: rgba(0, 0, 0, 0.16);
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding: 20px 0;
    }
    .footer-copyright {
      font-size: 13px;
      color: rgba(255, 255, 255, 0.45);
      text-align: center;
      display: block;
    }
    @media (max-width: 767.98px) {
      .footer-brand {
        font-size: 20px;
      }
    }

    /* ===== Modal 表单 ===== */
    .form-label {
      font-size: 14px;
      font-weight: 600;
      color: var(--color-text-secondary);
    }
    .form-privacy {
      font-size: 13px;
      color: var(--color-text-muted);
      text-align: center;
      margin-top: 14px;
      margin-bottom: 0;
    }
    .form-privacy a {
      color: var(--color-primary);
    }