/* roulang page: index */
:root {
  --primary: #0E3B34;
  --accent: #C99B45;
  --bg-warm: #FAF8F4;
  --white: #FFFFFF;
  --text-dark: #1C1F1E;
  --text-gray: #4B5563;
  --text-light: #9CA3AF;
  --border: #E8E5DF;
  --green: #2F7D5C;
  --gray-bg: #F5F3EF;
  --font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --radius: 12px;
  --radius-lg: 16px;
  --shadow-hover: 0 10px 30px rgba(0,0,0,0.06);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-family);
  background: var(--bg-warm);
  color: var(--text-gray);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; transition: all .3s ease; }
button { border: none; background: none; cursor: pointer; font-family: inherit; }

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}
@media (max-width: 767px) {
  .container { padding: 0 16px; }
}

/* ===== 导航 ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg-warm);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(12px);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}
.logo {
  display: flex;
  align-items: baseline;
  font-size: 22px;
  letter-spacing: -0.02em;
}
.logo-en { font-weight: 800; color: var(--primary); }
.logo-dot { color: var(--accent); font-weight: 400; margin: 0 2px; }
.logo-zh { font-weight: 400; color: var(--primary); }

.desktop-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-link {
  display: inline-block;
  padding: 10px 14px;
  font-size: 14px;
  color: var(--text-gray);
  font-weight: 500;
  border-radius: 8px;
  position: relative;
  transition: color .3s;
}
.nav-link:hover { color: var(--primary); }
.nav-link.active { color: var(--primary); font-weight: 600; }
.nav-link.active::after {
  content: '';
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 4px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}

.nav-dropdown { position: relative; }
.nav-dropdown .dropdown-trigger {
  display: flex;
  align-items: center;
  gap: 4px;
}
.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: 0 12px 32px rgba(0,0,0,0.08);
  padding: 8px;
  min-width: 168px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all .3s;
}
.nav-dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.dropdown-menu a {
  display: block;
  padding: 10px 16px;
  font-size: 14px;
  color: var(--text-gray);
  border-radius: 6px;
  white-space: nowrap;
}
.dropdown-menu a:hover {
  color: var(--primary);
  background: var(--gray-bg);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}
.search-btn {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: var(--text-gray);
  transition: all .3s;
}
.search-btn:hover { color: var(--primary); background: var(--gray-bg); }
.search-btn svg { width: 20px; height: 20px; }

.hamburger {
  display: none;
  width: 40px;
  height: 40px;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
}
.hamburger span {
  width: 22px;
  height: 2px;
  background: var(--text-dark);
  border-radius: 2px;
  transition: all .3s;
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-menu {
  display: none;
  position: fixed;
  top: 80px;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg-warm);
  padding: 24px 16px 40px;
  overflow-y: auto;
  z-index: 99;
}
.mobile-menu.open { display: block; }
.mobile-menu a {
  display: block;
  padding: 14px 16px;
  font-size: 18px;
  color: var(--text-dark);
  border-bottom: 1px solid var(--border);
  text-align: center;
  font-weight: 500;
}
.mobile-menu a:hover { color: var(--primary); }
.mobile-menu .mobile-sub {
  display: flex;
  flex-direction: column;
  padding-left: 16px;
}
.mobile-menu .mobile-sub a { font-size: 15px; color: var(--text-gray); }

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 12px 24px;
  font-size: 14px;
  font-weight: 500;
  transition: all .3s ease;
  line-height: 1.5;
  white-space: nowrap;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 4px 12px rgba(201,155,69,0.3);
}
.btn-primary:hover {
  background: var(--primary);
  box-shadow: 0 6px 18px rgba(14,59,52,0.3);
  color: #fff;
}
.btn-outline {
  border: 1px solid var(--border);
  color: var(--text-dark);
  background: transparent;
}
.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
}
.btn-dark {
  background: var(--primary);
  color: #fff;
}
.btn-dark:hover { background: #0a2b25; }
.btn-sm { padding: 10px 20px; font-size: 13px; }
.btn-lg { padding: 14px 32px; font-size: 15px; }

.text-link {
  color: var(--text-gray);
  font-size: 14px;
  font-weight: 500;
  position: relative;
}
.text-link:hover {
  color: var(--primary);
  text-decoration: underline;
  text-decoration-color: var(--accent);
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
}

/* ===== Hero ===== */
.hero {
  background: var(--bg-warm);
  padding: 88px 0 64px;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.hero-content h1 {
  font-size: 42px;
  line-height: 1.25;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 0;
  letter-spacing: -0.015em;
}
.hero-subtitle {
  font-size: 18px;
  color: var(--text-gray);
  margin-top: 24px;
  max-width: 440px;
  line-height: 1.8;
}
.hero-buttons {
  display: flex;
  gap: 16px;
  margin-top: 32px;
  flex-wrap: wrap;
}
.hero-trust {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 32px;
  color: var(--text-light);
  font-size: 13px;
  flex-wrap: wrap;
}
.hero-trust .dot {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--text-light);
}
.hero-image-wrap {
  position: relative;
  padding-right: 8px;
}
.hero-image-wrap img {
  width: 100%;
  height: 480px;
  object-fit: cover;
  border-radius: 16px;
  box-shadow: 0 16px 48px rgba(0,0,0,0.08);
}
.hero-image-wrap::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 8px;
  height: 100%;
  background: var(--accent);
  border-radius: 4px;
}
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero-content h1 { font-size: 36px; }
  .hero-image-wrap img { height: 360px; }
}

/* ===== 通用区块 ===== */
.section {
  padding: 80px 0;
}
.section-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 40px;
  flex-wrap: wrap;
  gap: 16px;
}
.section-title {
  position: relative;
  padding-left: 16px;
  font-size: 30px;
  font-weight: 700;
  color: var(--text-dark);
  line-height: 1.3;
}
.section-title::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 24px;
  background: var(--accent);
  border-radius: 2px;
}
.section-subtitle {
  font-size: 14px;
  color: var(--text-light);
  margin-top: 12px;
  max-width: 480px;
}

/* ===== 卡片 ===== */
.card {
  background: #fff;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 28px;
  transition: all .3s ease;
  height: 100%;
  position: relative;
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: var(--accent);
}
.card-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  color: var(--primary);
  margin-bottom: 20px;
}
.card-icon svg { width: 22px; height: 22px; }
.card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 12px;
}
.card p {
  font-size: 14px;
  color: var(--text-gray);
  line-height: 1.7;
  margin-bottom: 16px;
}
.card .card-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.card .card-link:hover { gap: 8px; color: var(--accent); }

/* ===== badge / 标签 ===== */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 500;
  line-height: 1.6;
}
.badge-accent { background: var(--accent); color: #fff; }
.badge-green { background: #F3F7F5; color: var(--primary); }

/* ===== 解决方案 ===== */
.solutions-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.solutions-grid .card { display: flex; flex-direction: column; }
.card-num {
  position: absolute;
  top: 16px;
  right: 20px;
  font-size: 42px;
  font-weight: 700;
  color: var(--border);
  line-height: 1;
}
.card-tint { background: #F3F7F5; border-color: #E4EDE8; }
.card-tint:hover { border-color: var(--primary); box-shadow: var(--shadow-hover); }
.hot-badge {
  position: absolute;
  top: 16px;
  right: 16px;
  background: var(--accent);
  color: #fff;
  font-size: 12px;
  padding: 4px 12px;
  border-radius: 999px;
  font-weight: 500;
}
.underline-accent {
  width: 24px;
  height: 3px;
  background: var(--accent);
  border-radius: 2px;
  margin-bottom: 16px;
}

/* ===== Demo 深色区 ===== */
.demo-section {
  background: var(--primary);
  color: #fff;
  padding: 80px 0;
  position: relative;
}
.demo-section::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--accent);
}
.demo-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.demo-grid .section-title { color: #fff; }
.demo-list {
  margin-top: 28px;
  list-style: none;
}
.demo-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 10px 0;
  font-size: 15px;
  color: rgba(255,255,255,0.85);
}
.demo-list li::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
  margin-top: 8px;
}
.demo-image-wrap img {
  width: 100%;
  height: 320px;
  object-fit: cover;
  border-radius: 12px;
  box-shadow: 0 0 0 1px rgba(255,255,255,0.15), 0 24px 64px rgba(0,0,0,0.3);
}
@media (max-width: 1024px) {
  .demo-grid { grid-template-columns: 1fr; gap: 40px; }
}

/* ===== 证据数据区 ===== */
.proof-section { background: var(--gray-bg); }
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}
.stat-item { text-align: center; padding: 20px 8px; }
.stat-number {
  font-size: 40px;
  font-weight: 800;
  color: var(--green);
  line-height: 1.1;
  letter-spacing: -0.02em;
}
.stat-number .unit { font-size: 20px; font-weight: 600; margin-left: 2px; }
.stat-label {
  font-size: 13px;
  color: var(--text-light);
  margin-top: 10px;
  position: relative;
  padding-top: 12px;
}
.stat-label::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 32px;
  height: 2px;
  background: var(--border);
  border-radius: 2px;
}
.client-logos {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 32px;
  margin-top: 56px;
  padding: 24px 0;
  flex-wrap: wrap;
}
.client-logo {
  color: var(--text-light);
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.02em;
  white-space: nowrap;
  opacity: 0.7;
  transition: opacity .3s;
}
.client-logo:hover { opacity: 1; color: var(--primary); }
@media (max-width: 768px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ===== 价格 ===== */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: start;
}
.pricing-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 36px 28px;
  display: flex;
  flex-direction: column;
  transition: all .3s;
  position: relative;
}
.pricing-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); }
.pricing-card.featured {
  border: 2px solid var(--accent);
  border-radius: 20px;
  box-shadow: 0 12px 32px rgba(201,155,69,0.15);
}
@media (min-width: 1024px) {
  .pricing-card.featured { margin-top: -16px; }
}
.featured-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 16px;
  border-radius: 999px;
  white-space: nowrap;
}
.plan-name { font-size: 14px; color: var(--text-light); font-weight: 500; }
.plan-price { font-size: 40px; font-weight: 800; color: var(--text-dark); margin: 16px 0 4px; line-height: 1.1; }
.plan-price .period { font-size: 14px; font-weight: 400; color: var(--text-light); margin-left: 4px; }
.plan-desc { font-size: 13px; color: var(--text-light); margin-bottom: 20px; }
.plan-list { list-style: none; margin-bottom: 28px; flex-grow: 1; }
.plan-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 6px 0;
  font-size: 14px;
  color: var(--text-gray);
}
.plan-list li .check {
  color: var(--accent);
  font-weight: 700;
  flex-shrink: 0;
}
.plan-note {
  font-size: 12px;
  color: var(--text-light);
  text-align: center;
  margin-top: 24px;
  line-height: 1.6;
}
@media (max-width: 768px) {
  .pricing-grid { grid-template-columns: 1fr; }
}

/* ===== FAQ ===== */
.faq-section { background: var(--bg-warm); }
.faq-layout {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 56px;
  align-items: start;
}
.faq-left { position: sticky; top: 100px; }
.faq-list {
  border-top: 1px solid var(--border);
}
.faq-item {
  border-bottom: 1px solid var(--border);
}
.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-dark);
  transition: color .3s;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:hover { color: var(--primary); }
.faq-item .faq-q {
  color: var(--accent);
  font-weight: 700;
  margin-right: 4px;
}
.faq-item .faq-icon {
  font-size: 22px;
  color: var(--text-light);
  font-weight: 400;
  transition: transform .3s, color .3s;
  flex-shrink: 0;
  margin-left: 16px;
  line-height: 1;
}
.faq-item[open] summary .faq-icon {
  transform: rotate(45deg);
  color: var(--accent);
}
.faq-item[open] summary { color: var(--primary); }
.faq-item .faq-answer {
  padding: 0 0 20px;
  font-size: 15px;
  color: var(--text-gray);
  line-height: 1.8;
}
@media (max-width: 1024px) {
  .faq-layout { grid-template-columns: 1fr; gap: 32px; }
  .faq-left { position: static; }
}

/* ===== 新闻资讯 ===== */
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.news-card {
  background: #fff;
  border-radius: 12px;
  border: 1px solid var(--border);
  padding: 24px;
  display: flex;
  flex-direction: column;
  transition: all .3s;
}
.news-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
  border-color: var(--accent);
}
.news-card .category-badge {
  align-self: flex-start;
  margin-bottom: 16px;
}
.news-card h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-dark);
  line-height: 1.5;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 48px;
}
.news-card p {
  font-size: 14px;
  color: var(--text-gray);
  line-height: 1.7;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 66px;
}
.news-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: var(--text-light);
  border-top: 1px solid var(--border);
  padding-top: 14px;
  margin-top: auto;
}
.news-card-meta .read-more {
  color: var(--primary);
  font-weight: 500;
  font-size: 13px;
  transition: all .3s;
}
.news-card:hover .read-more { color: var(--accent); }
.news-empty {
  border: 2px dashed var(--border);
  border-radius: 12px;
  padding: 64px 24px;
  text-align: center;
  color: var(--text-light);
  font-size: 15px;
}
@media (max-width: 768px) {
  .news-grid { grid-template-columns: 1fr; }
  .solutions-grid { grid-template-columns: 1fr; }
}

/* ===== CTA ===== */
.cta-section {
  background: var(--primary);
  color: #fff;
  padding: 72px 0 64px;
  text-align: center;
  border-bottom: 1px solid rgba(201,155,69,0.4);
}
.cta-section h2 {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 16px;
  color: #fff;
}
.cta-sub {
  font-size: 15px;
  color: rgba(255,255,255,0.7);
  margin-bottom: 36px;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.7;
}
.cta-form {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  max-width: 480px;
  margin: 0 auto;
}
.cta-form input {
  flex: 1;
  min-width: 220px;
  border-radius: 999px;
  border: none;
  padding: 14px 24px;
  font-size: 14px;
  background: #fff;
  color: var(--text-dark);
  outline: none;
  box-shadow: none;
  font-family: inherit;
}
.cta-form input:focus {
  border: 2px solid var(--accent);
  box-shadow: 0 0 0 3px rgba(201,155,69,0.2);
}
.cta-note {
  font-size: 12px;
  color: rgba(255,255,255,0.4);
  margin-top: 20px;
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--primary);
  color: rgba(255,255,255,0.7);
  padding: 56px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 48px;
  padding-bottom: 40px;
}
.footer-logo {
  font-size: 22px;
  color: #fff;
  display: flex;
  align-items: baseline;
  margin-bottom: 16px;
}
.footer-logo .logo-en { color: #fff; }
.footer-desc {
  font-size: 14px;
  color: rgba(255,255,255,0.5);
  line-height: 1.7;
  margin-bottom: 20px;
  max-width: 260px;
}
.footer-contact a {
  color: var(--accent);
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.footer-contact a:hover { color: #fff; text-decoration: underline; }
.footer-col h4 {
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 16px;
}
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 10px; }
.footer-col li a {
  font-size: 14px;
  color: rgba(255,255,255,0.6);
}
.footer-col li a:hover { color: var(--accent); }
.footer-col p {
  font-size: 13px;
  color: rgba(255,255,255,0.6);
  line-height: 1.8;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 24px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: rgba(255,255,255,0.5);
  flex-wrap: wrap;
  gap: 12px;
}
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
}
@media (max-width: 640px) {
  .footer-grid { grid-template-columns: 1fr; }
}

/* ===== 浮动CTA ===== */
.floating-cta {
  position: fixed;
  bottom: 32px;
  right: 32px;
  z-index: 90;
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px);
  transition: all .4s;
}
.floating-cta.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.floating-cta a {
  display: inline-flex;
  align-items: center;
  background: var(--primary);
  color: #fff;
  border-radius: 999px;
  padding: 12px 24px;
  font-size: 14px;
  font-weight: 500;
  box-shadow: 0 6px 20px rgba(14,59,52,0.3);
  transition: all .3s;
}
.floating-cta a:hover {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 6px 24px rgba(201,155,69,0.4);
}
@media (max-width: 520px) {
  .floating-cta { bottom: 20px; right: 20px; }
  .floating-cta a { padding: 12px 20px; font-size: 13px; }
}

/* ===== 移动端导航 ===== */
@media (max-width: 1024px) {
  .desktop-nav { display: none; }
  .header-actions .btn { display: none; }
  .hamburger { display: flex; }
}
@media (min-width: 1025px) {
  .hamburger { display: none !important; }
  .mobile-menu { display: none !important; }
}

/* ===== 焦点可见性 ===== */
a:focus-visible,
button:focus-visible,
summary:focus-visible,
input:focus-visible {
  outline: 3px solid rgba(201,155,69,0.5);
  outline-offset: 2px;
}

/* roulang page: article */
:root {
  --primary: #0E3B34;
  --accent: #C99B45;
  --bg: #FAF8F4;
  --white: #FFFFFF;
  --text: #1C1F1E;
  --gray: #4B5563;
  --light-gray: #9CA3AF;
  --border: #E8E5DF;
  --evidence-green: #2F7D5C;
  --light-bg: #F5F3EF;
  --light-green: #F3F7F5;
  --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color .3s ease; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

.container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  padding: 12px 24px;
  transition: all .3s ease;
  line-height: 1.4;
}
.btn-sm { padding: 8px 18px; font-size: 13px; }
.btn-primary { background: var(--accent); color: #fff; box-shadow: 0 4px 20px rgba(201,155,69,.3); }
.btn-primary:hover { background: var(--primary); }
.btn-outline { border: 1px solid var(--border); color: var(--text); background: #fff; }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }
.btn-accent { background: var(--accent); color: #fff; }
.btn-accent:hover { background: var(--primary); }

/* ===== 导航 ===== */
.site-header {
  background: var(--white);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 1000;
  height: 80px;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}
.logo {
  display: inline-flex;
  align-items: center;
  font-size: 22px;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: -.5px;
  flex-shrink: 0;
}
.logo-en { font-weight: 800; }
.logo-dot { color: var(--accent); margin: 0 2px; font-weight: 700; }
.logo-zh { font-weight: 400; }

.desktop-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav-link {
  font-size: 14px;
  color: #4B5563;
  font-weight: 500;
  padding: 8px 2px;
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: color .3s ease;
}
.nav-link:hover { color: var(--primary); }
.nav-link.active { color: var(--primary); }
.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}

.nav-dropdown { position: relative; }
.dropdown-trigger { cursor: pointer; }
.dropdown-menu {
  position: absolute;
  top: calc(100% + 12px);
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px;
  min-width: 180px;
  padding: 8px;
  opacity: 0;
  visibility: hidden;
  transition: all .25s ease;
  box-shadow: 0 12px 32px rgba(0,0,0,.06);
}
.nav-dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}
.dropdown-menu a {
  display: block;
  padding: 10px 14px;
  font-size: 14px;
  color: var(--gray);
  border-radius: 6px;
  transition: all .2s ease;
}
.dropdown-menu a:hover { background: var(--light-green); color: var(--primary); }

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.search-btn {
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  color: var(--gray);
  transition: background .3s ease, color .3s ease;
}
.search-btn:hover { background: var(--light-bg); color: var(--primary); }
.search-btn svg { width: 20px; height: 20px; }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
}
.hamburger span {
  width: 20px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all .3s ease;
}

.mobile-menu {
  display: none;
  position: fixed;
  top: 80px;
  left: 0;
  right: 0;
  background: #fff;
  border-bottom: 1px solid var(--border);
  padding: 20px 24px 28px;
  z-index: 999;
  box-shadow: 0 20px 40px rgba(0,0,0,.08);
  flex-direction: column;
  gap: 4px;
  max-height: calc(100vh - 80px);
  overflow-y: auto;
}
.mobile-menu.open { display: flex; }
.mobile-menu > a {
  padding: 12px 0;
  font-size: 16px;
  color: var(--text);
  border-bottom: 1px solid #f0eeea;
  font-weight: 500;
}
.mobile-menu > a:last-of-type { border-bottom: none; }
.mobile-sub {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  padding: 8px 0;
}
.mobile-sub a {
  display: block;
  padding: 10px 14px;
  background: var(--light-bg);
  border-radius: 8px;
  font-size: 14px;
  color: var(--gray);
  text-align: center;
  transition: all .2s ease;
}
.mobile-sub a:hover { background: var(--light-green); color: var(--primary); }

/* ===== 文章页 ===== */
.article-hero {
  background: var(--light-bg);
  padding: 44px 0 40px;
  border-bottom: 1px solid var(--border);
}
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--light-gray);
  margin-bottom: 20px;
}
.breadcrumb a { color: var(--gray); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb-sep { color: #d1d0cc; }
.breadcrumb-current {
  color: var(--primary);
  font-weight: 500;
  max-width: 420px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.article-hero h1 {
  font-size: 32px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.35;
  letter-spacing: -.3px;
  margin-bottom: 14px;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--light-gray);
}
.article-meta .author { color: var(--gray); font-weight: 500; }

/* ===== 正文 ===== */
.article-main { padding: 48px 0 64px; }
.article-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 48px;
  max-width: 860px;
  margin: 0 auto;
}

.article-content {
  font-size: 16px;
  line-height: 1.9;
  color: #333;
  max-width: 720px;
  margin: 0 auto;
}
.article-content p { margin-bottom: 20px; }
.article-content h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
  margin: 36px 0 16px;
  padding-left: 14px;
  border-left: 4px solid var(--accent);
}
.article-content h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
  margin: 28px 0 12px;
}
.article-content h4 {
  font-size: 16px;
  font-weight: 600;
  margin: 20px 0 10px;
}
.article-content ul,
.article-content ol {
  margin: 0 0 20px;
  padding-left: 24px;
}
.article-content li { margin-bottom: 8px; }
.article-content ul li { list-style: disc; }
.article-content ol li { list-style: decimal; }
.article-content blockquote {
  background: var(--light-bg);
  border-left: 4px solid var(--accent);
  padding: 18px 24px;
  border-radius: 0 12px 12px 0;
  margin: 24px 0;
  color: var(--gray);
  font-size: 15px;
}
.article-content img {
  border-radius: 12px;
  margin: 28px 0;
  max-width: 100%;
  height: auto;
}
.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 14px;
}
.article-content th {
  background: var(--light-green);
  padding: 12px 16px;
  text-align: left;
  font-weight: 600;
  border-bottom: 2px solid var(--border);
}
.article-content td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
}
.article-content a {
  color: var(--primary);
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-color: var(--accent);
}
.article-content a:hover { color: var(--accent); }
.article-content code {
  background: var(--light-bg);
  border-radius: 4px;
  padding: 2px 6px;
  font-size: 14px;
  font-family: "SF Mono", "Fira Code", Consolas, monospace;
}
.article-content pre {
  background: var(--primary);
  color: #e5e7eb;
  border-radius: 12px;
  padding: 20px;
  overflow-x: auto;
  margin: 24px 0;
  font-size: 14px;
  line-height: 1.7;
}
.article-content pre code { background: transparent; color: inherit; padding: 0; }

/* ===== 标签 ===== */
.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}
.tag {
  display: inline-block;
  background: var(--light-bg);
  color: var(--gray);
  font-size: 13px;
  padding: 6px 14px;
  border-radius: 999px;
  transition: all .25s ease;
}
.tag:hover { background: var(--accent); color: #fff; }

/* ===== 未找到 ===== */
.not-found {
  text-align: center;
  padding: 60px 24px;
  max-width: 720px;
  margin: 0 auto;
}
.not-found h3 {
  font-size: 24px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 12px;
}
.not-found p {
  color: var(--gray);
  font-size: 15px;
  margin-bottom: 28px;
}

/* ===== 延伸阅读 ===== */
.related-section {
  background: var(--bg);
  padding: 64px 0;
  border-top: 1px solid var(--border);
}
.related-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 36px;
}
.related-head h2 {
  font-size: 28px;
  font-weight: 700;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 12px;
}
.related-head h2::before {
  content: '';
  width: 4px;
  height: 24px;
  background: var(--accent);
  border-radius: 2px;
  flex-shrink: 0;
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.related-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  transition: all .3s ease;
  display: flex;
  flex-direction: column;
}
.related-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(0,0,0,.08);
  border-color: var(--accent);
}
.related-card img {
  width: 100%;
  height: 168px;
  object-fit: cover;
  border-radius: 0;
}
.related-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.related-cat {
  font-size: 12px;
  color: var(--primary);
  background: var(--light-green);
  border-radius: 999px;
  padding: 4px 10px;
  display: inline-block;
  align-self: flex-start;
  font-weight: 500;
  margin-bottom: 12px;
}
.related-body h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  line-height: 1.5;
  margin-bottom: 8px;
  transition: color .2s ease;
}
.related-card:hover .related-body h3 { color: var(--primary); }
.related-body p {
  font-size: 14px;
  color: var(--gray);
  line-height: 1.7;
  flex: 1;
  margin-bottom: 12px;
}
.related-link {
  font-size: 13px;
  color: var(--primary);
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.related-link::after { content: '→'; transition: transform .2s ease; }
.related-card:hover .related-link::after { transform: translateX(4px); }

/* ===== CTA ===== */
.cta-section {
  background: var(--primary);
  padding: 72px 0;
  text-align: center;
  border-bottom: 1px solid rgba(201,155,69,.4);
}
.cta-section h2 {
  color: #fff;
  font-size: 30px;
  font-weight: 700;
  margin-bottom: 12px;
}
.cta-section .cta-sub {
  color: rgba(255,255,255,.75);
  font-size: 15px;
  margin-bottom: 32px;
}
.cta-form {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}
.cta-form input {
  border-radius: 999px;
  border: none;
  background: #fff;
  padding: 14px 24px;
  width: 320px;
  font-size: 14px;
  color: var(--text);
  outline: none;
  transition: box-shadow .3s ease;
  font-family: inherit;
}
.cta-form input:focus {
  box-shadow: 0 0 0 3px rgba(201,155,69,.4);
}
.cta-form input::placeholder { color: var(--light-gray); }
.cta-tip {
  margin-top: 16px;
  font-size: 12px;
  color: rgba(255,255,255,.4);
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--primary);
  color: rgba(255,255,255,.7);
  padding: 64px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 48px;
}
.footer-logo {
  font-size: 22px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
  letter-spacing: -.5px;
}
.footer-logo .logo-en { font-weight: 800; }
.footer-desc {
  font-size: 14px;
  color: rgba(255,255,255,.5);
  line-height: 1.8;
  margin-bottom: 20px;
}
.footer-contact a {
  font-size: 14px;
  color: var(--accent);
  font-weight: 500;
  transition: color .3s ease;
}
.footer-contact a:hover { color: #fff; }
.footer-col h4 {
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 18px;
}
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a {
  font-size: 14px;
  color: rgba(255,255,255,.6);
  transition: color .3s ease;
}
.footer-col ul a:hover { color: var(--accent); }
.footer-col p {
  font-size: 13px;
  line-height: 1.8;
  color: rgba(255,255,255,.55);
  margin-bottom: 10px;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.12);
  padding: 22px 0;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13px;
  color: rgba(255,255,255,.45);
}

/* ===== 浮动按钮 ===== */
.floating-cta {
  position: fixed;
  right: 28px;
  bottom: 32px;
  background: var(--primary);
  color: #fff;
  border-radius: 999px;
  padding: 14px 24px;
  font-size: 14px;
  font-weight: 500;
  box-shadow: 0 8px 30px rgba(0,0,0,.2);
  opacity: 0;
  visibility: hidden;
  transition: all .4s ease;
  z-index: 900;
}
.floating-cta.visible {
  opacity: 1;
  visibility: visible;
}
.floating-cta:hover { background: var(--accent); transform: translateY(-2px); }

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .desktop-nav {
    gap: 18px;
  }
  .nav-link { font-size: 13px; }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }
  .related-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
  .desktop-nav {
    display: none;
  }
  .search-btn { display: none; }
  .header-actions .btn-sm { display: none; }
  .hamburger {
    display: flex;
  }
  .article-card { padding: 32px; }
  .article-hero h1 { font-size: 26px; }
  .cta-form input { width: 100%; max-width: 360px; }
}

@media (max-width: 640px) {
  .container { padding: 0 20px; }
  .article-hero { padding: 32px 0; }
  .article-card { padding: 24px; border-radius: 12px; }
  .article-hero h1 { font-size: 22px; }
  .article-meta { font-size: 12px; }
  .related-grid { grid-template-columns: 1fr; }
  .related-head h2 { font-size: 22px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .cta-section { padding: 48px 0; }
  .cta-section h2 { font-size: 24px; }
  .floating-cta {
    width: 56px;
    height: 56px;
    border-radius: 999px;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
  }
}

/* roulang page: category1 */
:root {
            --primary: #0E3B34;
            --accent: #C99B45;
            --bg: #FAF8F4;
            --white: #FFFFFF;
            --text: #1C1F1E;
            --text-gray: #4B5563;
            --text-light: #9CA3AF;
            --border: #E8E5DF;
            --success: #2F7D5C;
            --light-block: #F5F3EF;
            --green-tint: #F3F7F5;
            --radius: 12px;
            --shadow: 0 12px 30px rgba(0, 0, 0, 0.06);
            --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg);
            color: var(--text);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            text-rendering: optimizeLegibility;
        }

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

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

        button {
            font-family: inherit;
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 20px;
            }
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(250, 248, 244, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 80px;
        }

        .logo {
            display: inline-flex;
            align-items: center;
            gap: 2px;
            font-size: 22px;
            line-height: 1;
        }

        .logo-en {
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.5px;
        }

        .logo-dot {
            color: var(--accent);
            font-weight: 700;
        }

        .logo-zh {
            font-weight: 500;
            color: var(--primary);
        }

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

        .nav-link {
            position: relative;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 8px 14px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-gray);
            border-radius: 8px;
            transition: color 0.25s;
        }

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

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

        .nav-link.active::after {
            content: '';
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: 2px;
            height: 2px;
            border-radius: 2px;
            background: var(--accent);
        }

        .nav-dropdown {
            position: relative;
        }

        .dropdown-trigger {
            background: none;
            border: none;
            cursor: pointer;
        }

        .dropdown-menu {
            position: absolute;
            top: calc(100% + 14px);
            left: 50%;
            transform: translateX(-50%) translateY(-4px);
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 6px;
            min-width: 160px;
            box-shadow: var(--shadow);
            opacity: 0;
            visibility: hidden;
            transition: all 0.25s;
        }

        .nav-dropdown:hover .dropdown-menu {
            opacity: 1;
            visibility: visible;
            top: calc(100% + 6px);
            transform: translateX(-50%) translateY(0);
        }

        .dropdown-menu a {
            display: block;
            padding: 10px 16px;
            font-size: 14px;
            color: var(--text-gray);
            border-radius: 8px;
            transition: all 0.2s;
        }

        .dropdown-menu a:hover {
            color: var(--primary);
            background: var(--green-tint);
        }

        .dropdown-menu a.active {
            color: var(--primary);
            background: var(--green-tint);
            font-weight: 600;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .search-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border: none;
            background: transparent;
            color: var(--text-gray);
            border-radius: 50%;
            cursor: pointer;
            transition: all 0.25s;
        }

        .search-btn:hover {
            color: var(--primary);
            background: rgba(14, 59, 52, 0.06);
        }

        .search-btn svg {
            width: 20px;
            height: 20px;
        }

        .hamburger {
            display: none;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            width: 42px;
            height: 42px;
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: 10px;
            cursor: pointer;
            transition: all 0.3s;
        }

        .hamburger span {
            display: block;
            width: 18px;
            height: 2px;
            background: var(--text);
            margin: 0 auto;
            border-radius: 2px;
            transition: all 0.3s;
        }

        .hamburger.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

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

        .hamburger.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .mobile-menu {
            display: none;
            position: fixed;
            inset: 80px 0 0;
            background: var(--bg);
            padding: 24px 20px 40px;
            overflow-y: auto;
            z-index: 45;
        }

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

        .mobile-menu > a {
            display: block;
            padding: 14px 8px;
            text-align: center;
            font-size: 16px;
            font-weight: 500;
            color: var(--text);
            border-bottom: 1px solid var(--border);
        }

        .mobile-menu > a.active {
            color: var(--primary);
        }

        .mobile-sub {
            display: flex;
            flex-direction: column;
            gap: 2px;
            margin-top: 8px;
        }

        .mobile-sub a {
            display: block;
            padding: 10px 8px;
            text-align: center;
            font-size: 14px;
            color: var(--text-gray);
            border-bottom: 1px dashed var(--border);
        }

        .mobile-sub a.active {
            color: var(--primary);
            font-weight: 600;
        }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 999px;
            padding: 11px 26px;
            font-size: 14px;
            font-weight: 600;
            transition: all 0.3s;
            cursor: pointer;
            border: none;
            line-height: 1.4;
        }

        .btn-sm {
            padding: 8px 18px;
            font-size: 13px;
        }

        .btn-primary {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 4px 14px rgba(201, 155, 69, 0.3);
        }

        .btn-primary:hover {
            background: var(--primary);
            transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(14, 59, 52, 0.2);
        }

        .btn-outline {
            background: transparent;
            border: 1px solid var(--border);
            color: var(--text);
        }

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

        /* ===== Page Head ===== */
        .page-head {
            background: var(--light-block);
            padding: 48px 0 56px;
            border-bottom: 1px solid var(--border);
        }

        .breadcrumb {
            font-size: 13px;
            color: var(--text-light);
            margin-bottom: 18px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .breadcrumb a {
            transition: color 0.2s;
        }

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

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

        .page-head h1 {
            font-size: 38px;
            font-weight: 800;
            color: var(--text);
            line-height: 1.2;
            margin-bottom: 14px;
            letter-spacing: -0.5px;
        }

        .page-head .subtitle {
            font-size: 16px;
            color: var(--text-gray);
            max-width: 560px;
        }

        @media (max-width: 768px) {
            .page-head {
                padding: 32px 0 40px;
            }

            .page-head h1 {
                font-size: 30px;
            }

            .page-head .subtitle {
                font-size: 15px;
            }
        }

        /* ===== Sidebar ===== */
        .category-main {
            padding-top: 64px;
            padding-bottom: 80px;
        }

        .sidebar {
            position: sticky;
            top: 100px;
            align-self: start;
        }

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

        .sidebar-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 26px;
            margin-bottom: 24px;
            transition: box-shadow 0.3s;
        }

        .sidebar-card:hover {
            box-shadow: var(--shadow);
        }

        .sidebar-card h2 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .sidebar-card h2::before {
            content: '';
            width: 4px;
            height: 18px;
            background: var(--accent);
            border-radius: 2px;
            flex-shrink: 0;
        }

        .sidebar-card p {
            font-size: 14px;
            color: var(--text-gray);
            line-height: 1.8;
            margin-bottom: 16px;
        }

        .sidebar-card img {
            border-radius: 10px;
            margin-top: 4px;
            margin-bottom: 16px;
            object-fit: cover;
        }

        .sidebar-stats {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
        }

        .stat-item {
            background: var(--green-tint);
            border-radius: 10px;
            padding: 14px 10px;
            text-align: center;
        }

        .stat-item strong {
            display: block;
            font-size: 22px;
            font-weight: 800;
            color: var(--success);
            letter-spacing: -0.5px;
        }

        .stat-item span {
            font-size: 12px;
            color: var(--text-gray);
            margin-top: 2px;
        }

        .tags-block {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 20px 24px;
        }

        .tags-block h3 {
            font-size: 14px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 14px;
        }

        .tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .tag-list a {
            display: inline-block;
            font-size: 13px;
            color: var(--text-gray);
            background: var(--light-block);
            border-radius: 999px;
            padding: 6px 14px;
            transition: all 0.2s;
        }

        .tag-list a:hover {
            background: var(--accent);
            color: #fff;
        }

        /* ===== Content List ===== */
        .list-head {
            margin-bottom: 32px;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .list-head h2 {
            font-size: 24px;
            font-weight: 800;
            color: var(--text);
            display: flex;
            align-items: center;
            gap: 12px;
            line-height: 1.3;
        }

        .list-head h2::before {
            content: '';
            width: 4px;
            height: 24px;
            background: var(--accent);
            border-radius: 2px;
            flex-shrink: 0;
        }

        .list-head p {
            font-size: 14px;
            color: var(--text-gray);
            padding-left: 16px;
        }

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

        .scheme-item {
            display: flex;
            gap: 24px;
            padding: 32px 8px;
            border-bottom: 1px solid var(--border);
            transition: background 0.3s, transform 0.3s;
            border-radius: 8px;
        }

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

        .scheme-item:hover {
            background: rgba(243, 247, 245, 0.6);
            transform: translateX(4px);
        }

        .scheme-num {
            font-size: 42px;
            font-weight: 800;
            color: #E8E5DF;
            line-height: 1;
            width: 68px;
            flex-shrink: 0;
            text-align: center;
            padding-top: 4px;
            transition: color 0.3s;
            letter-spacing: -1px;
        }

        .scheme-item:hover .scheme-num {
            color: var(--accent);
        }

        .scheme-content {
            flex: 1;
        }

        .scheme-content h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 10px;
            transition: color 0.2s;
        }

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

        .scheme-content p {
            font-size: 15px;
            color: var(--text-gray);
            line-height: 1.8;
            margin-bottom: 14px;
        }

        .text-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            transition: gap 0.25s;
        }

        .text-link:hover {
            color: var(--accent);
            gap: 10px;
        }

        @media (max-width: 768px) {
            .category-main {
                padding-top: 40px;
                padding-bottom: 48px;
            }

            .scheme-item {
                flex-direction: column;
                gap: 12px;
                padding: 24px 8px;
            }

            .scheme-num {
                width: auto;
                font-size: 28px;
                text-align: left;
            }

            .list-head h2 {
                font-size: 20px;
            }
        }

        /* ===== CTA ===== */
        .cta-block {
            background: var(--primary);
            color: #fff;
            padding: 72px 0;
            text-align: center;
        }

        .cta-block h2 {
            font-size: 28px;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 16px;
            color: #fff;
        }

        .cta-block p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 32px;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
        }

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

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

        .cta-block .btn-primary:hover {
            background: #fff;
            color: var(--primary);
            box-shadow: 0 8px 24px rgba(255, 255, 255, 0.15);
        }

        .cta-block .btn-outline {
            border-color: rgba(255, 255, 255, 0.4);
            color: #fff;
        }

        .cta-block .btn-outline:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: transparent;
        }

        .cta-note {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.45);
            margin-top: 24px;
            margin-bottom: 0;
        }

        @media (max-width: 768px) {
            .cta-block {
                padding: 48px 0;
            }

            .cta-block h2 {
                font-size: 24px;
            }

            .cta-actions {
                flex-direction: column;
                align-items: center;
            }

            .cta-actions .btn {
                width: 100%;
                max-width: 320px;
            }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary);
            color: rgba(255, 255, 255, 0.7);
            padding-top: 64px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 48px;
            padding-bottom: 48px;
        }

        .footer-logo {
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
        }

        .footer-desc {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            line-height: 1.8;
            margin-bottom: 16px;
            max-width: 280px;
        }

        .footer-contact a {
            font-size: 14px;
            font-weight: 600;
            color: var(--accent);
            transition: color 0.2s;
        }

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

        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }

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

        .footer-col a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            transition: color 0.2s;
        }

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

        .footer-col p {
            font-size: 13px;
            line-height: 1.8;
            margin-bottom: 8px;
            color: rgba(255, 255, 255, 0.55);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 20px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.35);
        }

        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 640px) {
            .site-footer {
                padding-top: 48px;
            }

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

            .footer-bottom {
                flex-direction: column;
                gap: 8px;
                text-align: center;
            }
        }

        /* ===== Float CTA ===== */
        .float-cta {
            position: fixed;
            right: 24px;
            bottom: 24px;
            z-index: 40;
            background: var(--primary);
            color: #fff;
            border-radius: 999px;
            padding: 12px 24px;
            font-size: 14px;
            font-weight: 600;
            box-shadow: 0 10px 30px rgba(14, 59, 52, 0.35);
            opacity: 0;
            visibility: hidden;
            transform: translateY(12px);
            transition: all 0.35s;
        }

        .float-cta.show {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .float-cta:hover {
            background: var(--accent);
            box-shadow: 0 10px 30px rgba(201, 155, 69, 0.35);
        }

        @media (max-width: 640px) {
            .float-cta {
                padding: 10px 16px;
                right: 16px;
                bottom: 16px;
                font-size: 13px;
            }

            .float-cta span {
                display: none;
            }
        }

        /* ===== Responsive Nav ===== */
        @media (max-width: 1180px) {
            .desktop-nav {
                display: none;
            }

            .hamburger {
                display: flex;
            }
        }

        @media (min-width: 1181px) {
            .hamburger {
                display: none;
            }

            .mobile-menu {
                display: none !important;
            }
        }

/* roulang page: category2 */
:root {
  --primary: #0E3B34;
  --accent: #C99B45;
  --bg-warm: #FAF8F4;
  --bg-white: #FFFFFF;
  --bg-muted: #F5F3EF;
  --text-dark: #1C1F1E;
  --text-gray: #4B5563;
  --text-light: #9CA3AF;
  --border: #E8E5DF;
  --proof-green: #2F7D5C;
  --radius: 12px;
  --shadow: 0 4px 12px rgba(0,0,0,0.06);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background: var(--bg-warm);
  color: var(--text-dark);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; transition: color .2s; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; }
input, textarea, select { font-family: inherit; }

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: #fff;
  border-bottom: 1px solid var(--border);
  height: 80px;
  display: flex;
  align-items: center;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}
.logo {
  display: flex;
  align-items: center;
  font-size: 22px;
  letter-spacing: 0.5px;
}
.logo-en { font-weight: 700; color: var(--primary); font-size: 20px; }
.logo-dot { color: var(--accent); margin: 0 3px; font-weight: 700; }
.logo-zh { font-weight: 500; color: var(--text-dark); }

.desktop-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav-link {
  color: var(--text-gray);
  font-size: 14px;
  font-weight: 500;
  padding: 8px 0;
  position: relative;
  transition: color .2s;
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.nav-link:hover { color: var(--primary); }
.nav-link.active { color: var(--primary); }
.nav-link.active::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}

.nav-dropdown { position: relative; }
.dropdown-menu {
  position: absolute;
  top: calc(100% + 14px);
  left: 50%;
  transform: translateX(-50%) translateY(6px);
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px;
  min-width: 148px;
  opacity: 0;
  visibility: hidden;
  transition: opacity .25s, transform .25s, visibility .25s;
  z-index: 50;
  box-shadow: 0 8px 24px rgba(0,0,0,0.08);
}
.nav-dropdown:hover .dropdown-menu,
.nav-dropdown:focus-within .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}
.dropdown-menu a {
  display: block;
  padding: 9px 16px;
  border-radius: 4px;
  color: var(--text-gray);
  font-size: 14px;
  transition: color .2s, background .2s;
  white-space: nowrap;
}
.dropdown-menu a:hover {
  color: var(--primary);
  background: var(--bg-muted);
}
.dropdown-menu a.active {
  color: var(--primary);
  font-weight: 600;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}
.search-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  color: var(--text-gray);
  transition: color .2s, background .2s;
}
.search-btn:hover { color: var(--primary); background: var(--bg-muted); }
.search-btn svg { width: 20px; height: 20px; }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  background: none;
  border: none;
}
.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-dark);
  border-radius: 2px;
  transition: transform .3s, opacity .3s;
}
.hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  background: #fff;
  z-index: 90;
  padding: 96px 32px 48px;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  overflow-y: auto;
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  color: var(--text-dark);
  font-size: 17px;
  font-weight: 500;
  padding: 10px 0;
  transition: color .2s;
}
.mobile-menu a:hover { color: var(--primary); }
.mobile-menu a.active { color: var(--primary); font-weight: 700; border-bottom: 2px solid var(--accent); }
.mobile-sub-group {
  width: 100%;
  border-top: 1px solid var(--border);
  padding-top: 24px;
  margin-top: 12px;
  text-align: center;
}
.mobile-sub-group .group-title {
  font-size: 13px;
  color: var(--text-light);
  font-weight: 600;
  letter-spacing: 1px;
  margin-bottom: 8px;
}
.mobile-sub {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  width: 100%;
}
.mobile-sub a { font-size: 15px; color: var(--text-gray); }
.mobile-sub a.active { color: var(--primary); font-weight: 700; border-bottom: 2px solid var(--accent); }

/* Buttons */
.btn {
  display: inline-block;
  padding: 12px 28px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  text-align: center;
  transition: background .3s, color .3s, border-color .3s, transform .2s;
  line-height: 1.4;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 4px 12px rgba(201,155,69,0.3);
}
.btn-primary:hover {
  background: var(--primary);
  color: #fff;
}
.btn-outline {
  border: 1px solid var(--border);
  color: var(--text-dark);
  background: transparent;
}
.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
}
.btn-sm {
  padding: 8px 20px;
  font-size: 13px;
}
.btn-accent {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 4px 12px rgba(201,155,69,0.3);
}
.btn-accent:hover {
  background: #fff;
  color: var(--primary);
}

/* Hero */
.cat-hero {
  padding: 96px 0 128px;
}
.cat-hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.cat-hero-content { max-width: 560px; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(14,59,52,0.06);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 999px;
  margin-bottom: 24px;
}
.live-dot {
  width: 8px;
  height: 8px;
  background: var(--proof-green);
  border-radius: 50%;
  display: inline-block;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}
.cat-hero h1 {
  font-size: 44px;
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 18px;
  color: var(--text-dark);
}
.cat-hero .lead {
  font-size: 18px;
  color: var(--text-gray);
  line-height: 1.75;
  margin-bottom: 32px;
}
.cat-hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 36px;
}
.trust-row {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  color: var(--text-light);
}
.trust-row strong { color: var(--primary); font-weight: 600; }
.trust-row .dot { color: var(--accent); font-weight: 700; }

.cat-hero-image img {
  width: 100%;
  aspect-ratio: 4/5;
  object-fit: cover;
  border-radius: 16px;
  border-right: 8px solid var(--accent);
  box-shadow: 0 16px 40px rgba(0,0,0,0.08);
}

/* Section */
.cat-insp {
  padding: 48px 0 96px;
}
.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}
.section-head h2 {
  font-size: 30px;
  font-weight: 700;
  color: var(--text-dark);
  display: flex;
  align-items: center;
  gap: 12px;
}
.section-head h2::before {
  content: "";
  width: 4px;
  height: 24px;
  background: var(--accent);
  border-radius: 2px;
}
.section-head p {
  font-size: 14px;
  color: var(--text-gray);
}

.insp-grid {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: 32px;
}
.insp-feature {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  transition: box-shadow .3s, transform .3s, border-color .3s;
}
.insp-feature:hover {
  box-shadow: 0 12px 32px rgba(0,0,0,0.08);
  transform: translateY(-4px);
  border-color: var(--accent);
}
.insp-img { position: relative; }
.insp-img img {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
}
.badge {
  position: absolute;
  top: 14px;
  left: 14px;
  background: var(--primary);
  color: #fff;
  padding: 5px 14px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.3px;
}
.badge-light {
  position: static;
  display: inline-block;
  background: rgba(14,59,52,0.08);
  color: var(--primary);
  margin-bottom: 8px;
}
.insp-body { padding: 24px 28px 28px; }
.insp-body h3 {
  font-size: 21px;
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: 12px;
  color: var(--text-dark);
}
.insp-body p {
  color: var(--text-gray);
  font-size: 15px;
  line-height: 1.8;
  margin-bottom: 18px;
}
.text-link {
  color: var(--primary);
  font-weight: 600;
  font-size: 14px;
  transition: color .2s;
}
.text-link:hover { color: var(--accent); }

.insp-side {
  display: flex;
  flex-direction: column;
  gap: 32px;
}
.insp-small {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px;
  display: flex;
  gap: 16px;
  flex: 1;
  align-items: center;
  transition: box-shadow .3s, transform .3s, border-color .3s;
}
.insp-small:hover {
  box-shadow: 0 8px 24px rgba(0,0,0,0.07);
  transform: translateY(-4px);
  border-color: var(--accent);
}
.small-thumb {
  width: 96px;
  height: 96px;
  flex-shrink: 0;
}
.small-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 12px;
}
.small-content h4 {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
  margin-bottom: 6px;
  color: var(--text-dark);
}
.small-content p {
  font-size: 13px;
  color: var(--text-gray);
  line-height: 1.6;
}

/* Quote */
.cat-quote {
  background: var(--bg-muted);
  padding: 88px 0;
}
.cat-quote .container {
  max-width: 960px;
}
.cat-quote blockquote {
  border-left: 4px solid var(--accent);
  padding-left: 32px;
  font-size: 22px;
  font-weight: 500;
  line-height: 1.8;
  color: var(--text-dark);
}
.quote-author {
  text-align: right;
  margin-top: 24px;
  color: var(--text-light);
  font-size: 14px;
}

/* CTA */
.cat-cta {
  background: var(--primary);
  padding: 80px 0;
  text-align: center;
}
.cat-cta h2 {
  font-size: 28px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
}
.cat-cta p {
  color: rgba(255,255,255,0.7);
  font-size: 15px;
  margin-bottom: 32px;
}
.cat-cta .btn-accent { padding: 13px 36px; }

/* Footer */
.site-footer {
  background: var(--primary);
  color: rgba(255,255,255,0.7);
  padding-top: 64px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.4fr;
  gap: 48px;
  padding-bottom: 48px;
}
.footer-logo {
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  display: flex;
  align-items: center;
  margin-bottom: 16px;
}
.footer-desc {
  font-size: 14px;
  color: rgba(255,255,255,0.5);
  line-height: 1.8;
  margin-bottom: 16px;
}
.footer-contact a {
  color: rgba(255,255,255,0.7);
  font-size: 14px;
  transition: color .2s;
}
.footer-contact a:hover { color: var(--accent); }
.footer-col h4 {
  color: #fff;
  font-size: 15px;
  margin-bottom: 16px;
  font-weight: 600;
}
.footer-col li { margin-bottom: 10px; }
.footer-col a {
  color: rgba(255,255,255,0.6);
  font-size: 14px;
  transition: color .2s;
}
.footer-col a:hover { color: var(--accent); }
.footer-col p {
  font-size: 13px;
  color: rgba(255,255,255,0.55);
  line-height: 1.8;
  margin-bottom: 8px;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 20px 0;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 13px;
  color: rgba(255,255,255,0.4);
}

/* Float CTA */
.float-cta {
  position: fixed;
  right: 24px;
  bottom: 24px;
  background: var(--primary);
  color: #fff;
  padding: 12px 20px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  box-shadow: 0 8px 24px rgba(14,59,52,0.4);
  z-index: 80;
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px);
  transition: opacity .3s, transform .3s, visibility .3s;
}
.float-cta.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.float-cta:hover {
  background: var(--accent);
  color: #fff;
}

/* Responsive */
@media (max-width: 1024px) {
  .cat-hero { padding: 72px 0 96px; }
  .cat-hero-inner { gap: 40px; }
  .cat-hero h1 { font-size: 36px; }
  .insp-grid { grid-template-columns: 1fr; }
  .insp-small { max-width: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .desktop-nav { display: none; }
  .header-actions .btn-sm { display: none; }
  .hamburger { display: flex; }
  .mobile-menu { display: none; }
  .mobile-menu.open { display: flex; }

  .cat-hero { padding: 48px 0 72px; }
  .cat-hero-inner { grid-template-columns: 1fr; }
  .cat-hero h1 { font-size: 32px; }
  .cat-hero .lead { font-size: 16px; }
  .cat-hero-actions { flex-direction: column; align-items: flex-start; }
  .cat-hero-image img { aspect-ratio: 4/4; }
  .section-head { flex-direction: column; align-items: flex-start; gap: 8px; }
  .cat-insp { padding: 24px 0 64px; }
  .insp-small { flex-direction: column; align-items: flex-start; }
  .small-thumb { width: 100%; height: auto; aspect-ratio: 16/9; }
  .cat-quote { padding: 56px 0; }
  .cat-quote blockquote { font-size: 18px; padding-left: 20px; }
  .cat-cta { padding: 56px 0; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; }
  .float-cta { padding: 10px 16px; font-size: 0; }
  .float-cta::after { content: "评估"; font-size: 14px; }
}

@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .cat-hero h1 { font-size: 28px; }
  .trust-row { flex-wrap: wrap; }
  .insp-body h3 { font-size: 18px; }
}

/* roulang page: category3 */
:root {
            --primary: #0E3B34;
            --primary-dark: #092A25;
            --accent: #C99B45;
            --accent-light: #E8D5A8;
            --bg-warm: #FAF8F4;
            --bg-white: #FFFFFF;
            --text-dark: #1C1F1E;
            --text-gray: #4B5563;
            --text-light: #9CA3AF;
            --border: #E8E5DF;
            --bg-gray: #F5F3EF;
            --data-green: #2F7D5C;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-full: 999px;
            --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.06);
            --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            background: var(--bg-warm);
            color: var(--text-dark);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color .25s ease;
        }
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
        }
        input {
            font-family: inherit;
            outline: none;
        }
        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 16px;
            padding-right: 16px;
        }
        @media (min-width:768px) {
            .container {
                padding-left: 24px;
                padding-right: 24px;
            }
        }
        @media (min-width:1024px) {
            .container {
                padding-left: 32px;
                padding-right: 32px;
            }
        }

        /* ===== Header ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(250, 248, 244, .92);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--border);
            height: 80px;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 80px;
        }
        .logo {
            display: inline-flex;
            align-items: baseline;
            font-size: 24px;
            letter-spacing: -0.5px;
        }
        .logo-en {
            font-weight: 700;
            color: var(--primary);
            font-size: 22px;
        }
        .logo-dot {
            color: var(--accent);
            font-size: 24px;
            margin: 0 2px;
            font-weight: 700;
        }
        .logo-zh {
            font-weight: 400;
            color: var(--primary);
            font-size: 22px;
        }
        .desktop-nav {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .nav-link {
            position: relative;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 10px 14px;
            font-size: 14px;
            font-weight: 500;
            color: #4B5563;
            border-radius: 8px;
            transition: color .25s, background .25s;
        }
        .nav-link:hover {
            color: var(--primary);
            background: rgba(14, 59, 52, .04);
        }
        .nav-link.active {
            color: var(--primary);
            font-weight: 600;
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 14px;
            right: 14px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }
        .nav-dropdown {
            position: relative;
        }
        .dropdown-trigger {
            background: none;
            font-size: 14px;
            font-weight: 500;
            color: #4B5563;
            padding: 10px 14px;
            border-radius: 8px;
            transition: color .25s;
        }
        .dropdown-trigger:hover {
            color: var(--primary);
        }
        .dropdown-trigger.active {
            color: var(--primary);
            font-weight: 600;
        }
        .dropdown-trigger.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 14px;
            right: 14px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }
        .dropdown-menu {
            position: absolute;
            top: 100%;
            left: 0;
            min-width: 160px;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 8px;
            padding: 8px 0;
            opacity: 0;
            visibility: hidden;
            transform: translateY(8px);
            transition: all .25s ease;
            box-shadow: 0 12px 32px rgba(0, 0, 0, .08);
        }
        .nav-dropdown:hover .dropdown-menu,
        .nav-dropdown:focus-within .dropdown-menu {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        .dropdown-menu a {
            display: block;
            padding: 10px 18px;
            font-size: 14px;
            color: var(--text-gray);
            transition: color .2s, background .2s;
        }
        .dropdown-menu a:hover {
            color: var(--primary);
            background: var(--bg-gray);
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .search-btn {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #4B5563;
            transition: background .25s, color .25s;
        }
        .search-btn:hover {
            background: var(--bg-gray);
            color: var(--primary);
        }
        .search-btn svg {
            width: 18px;
            height: 18px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-full);
            font-size: 14px;
            font-weight: 500;
            padding: 12px 28px;
            transition: all .3s ease;
        }
        .btn-primary {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 4px 14px rgba(201, 155, 69, .3);
        }
        .btn-primary:hover {
            background: var(--primary);
            box-shadow: 0 6px 20px rgba(14, 59, 52, .25);
            transform: translateY(-2px);
        }
        .btn-sm {
            padding: 9px 20px;
            font-size: 13px;
        }
        .btn-outline {
            border: 1px solid var(--border);
            color: var(--text-dark);
            background: transparent;
        }
        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
        }
        .hamburger {
            display: none;
            width: 40px;
            height: 40px;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            border-radius: 8px;
        }
        .hamburger span {
            width: 20px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: all .3s;
        }
        .mobile-menu {
            display: none;
            position: fixed;
            top: 80px;
            left: 0;
            width: 100%;
            background: #fff;
            border-bottom: 1px solid var(--border);
            padding: 20px 24px 32px;
            flex-direction: column;
            align-items: center;
            gap: 6px;
            z-index: 99;
            box-shadow: 0 16px 40px rgba(0, 0, 0, .08);
        }
        .mobile-menu a {
            font-size: 15px;
            color: var(--text-gray);
            padding: 10px 0;
            display: block;
            text-align: center;
        }
        .mobile-menu a:hover {
            color: var(--primary);
        }
        .mobile-menu .mobile-sub {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 8px;
            padding: 8px 0 12px;
        }
        .mobile-menu .mobile-sub a {
            background: var(--bg-gray);
            border-radius: var(--radius-full);
            padding: 6px 16px;
            font-size: 13px;
            color: var(--primary);
        }
        .mobile-menu .btn {
            margin-top: 12px;
        }
        .mobile-menu.open {
            display: flex;
        }

        /* ===== Common Section ===== */
        .section {
            padding-top: 80px;
            padding-bottom: 80px;
        }
        @media (min-width:768px) {
            .section {
                padding-top: 112px;
                padding-bottom: 112px;
            }
        }
        .section-head {
            max-width: 560px;
            margin-bottom: 48px;
        }
        .section-title {
            display: flex;
            align-items: center;
            font-size: 28px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 14px;
            letter-spacing: -0.3px;
        }
        .section-title::before {
            content: '';
            width: 4px;
            height: 24px;
            border-radius: 2px;
            background: var(--accent);
            margin-right: 12px;
            flex-shrink: 0;
        }
        .section-sub {
            font-size: 14px;
            color: var(--text-gray);
            padding-left: 16px;
            max-width: 500px;
            line-height: 1.8;
        }

        /* ===== Page Hero ===== */
        .page-hero {
            background: var(--bg-gray);
            padding: 56px 0 60px;
            border-bottom: 1px solid var(--border);
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-light);
            margin-bottom: 24px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-light);
            transition: color .2s;
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb-sep {
            color: #d4d0c9;
            font-size: 12px;
        }
        .page-hero h1 {
            font-size: 36px;
            font-weight: 700;
            letter-spacing: -1px;
            color: var(--text-dark);
            line-height: 1.2;
            margin-bottom: 16px;
        }
        .page-hero .lead {
            font-size: 16px;
            color: var(--text-gray);
            line-height: 1.8;
            max-width: 640px;
        }
        @media (max-width:640px) {
            .page-hero h1 {
                font-size: 30px;
            }
            .page-hero {
                padding: 40px 0 48px;
            }
        }

        /* ===== Overview ===== */
        .overview-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 48px;
            align-items: center;
        }
        @media (min-width:1024px) {
            .overview-grid {
                grid-template-columns: 1.1fr .9fr;
                gap: 64px;
            }
        }
        .overview-text h2 {
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 20px;
            line-height: 1.3;
            letter-spacing: -0.3px;
        }
        .overview-text p {
            font-size: 15px;
            color: var(--text-gray);
            line-height: 1.9;
            margin-bottom: 24px;
        }
        .overview-list {
            list-style: none;
            margin-bottom: 32px;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .overview-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            font-size: 14px;
            color: var(--text-gray);
            line-height: 1.6;
        }
        .overview-list li svg {
            width: 20px;
            height: 20px;
            flex-shrink: 0;
            color: var(--data-green);
            margin-top: 2px;
        }
        .overview-image {
            position: relative;
            border-radius: 16px;
            overflow: hidden;
        }
        .overview-image::after {
            content: '';
            position: absolute;
            right: -8px;
            top: 16px;
            bottom: 16px;
            width: 8px;
            background: var(--accent);
            border-radius: 4px;
        }
        .overview-image img {
            width: 100%;
            height: 340px;
            object-fit: cover;
            border-radius: 16px;
        }
        @media (max-width:640px) {
            .overview-image img {
                height: 240px;
            }
        }

        /* ===== Timeline ===== */
        .timeline {
            position: relative;
            padding: 24px 0 16px;
        }
        .timeline::before {
            content: '';
            position: absolute;
            left: 50%;
            top: 0;
            bottom: 0;
            width: 2px;
            background: var(--border);
            transform: translateX(-50%);
        }
        .timeline-item {
            position: relative;
            width: 50%;
            padding: 20px 48px 28px 24px;
        }
        .timeline-item.right {
            margin-left: 50%;
            padding: 20px 24px 28px 48px;
        }
        .timeline-dot {
            position: absolute;
            top: 40px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--accent);
            border: 3px solid var(--bg-warm);
            box-shadow: 0 0 0 2px var(--accent);
            box-sizing: content-box;
        }
        .timeline-item.left .timeline-dot {
            right: -7px;
        }
        .timeline-item.right .timeline-dot {
            left: -7px;
        }
        .timeline-date {
            font-size: 13px;
            color: var(--text-light);
            font-weight: 500;
            margin-bottom: 8px;
            letter-spacing: 0.3px;
        }
        .timeline-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px;
            transition: all .3s ease;
        }
        .timeline-card:hover {
            box-shadow: var(--shadow-card);
            border-color: var(--accent);
            transform: translateY(-3px);
        }
        .timeline-card h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .timeline-card p {
            font-size: 14px;
            color: var(--text-gray);
            line-height: 1.75;
            margin-bottom: 12px;
        }
        .timeline-tag {
            display: inline-block;
            background: var(--bg-gray);
            color: var(--primary);
            font-size: 12px;
            font-weight: 500;
            border-radius: var(--radius-full);
            padding: 4px 12px;
        }
        @media (max-width:768px) {
            .timeline::before {
                left: 20px;
                transform: none;
            }
            .timeline-item,
            .timeline-item.right {
                width: 100%;
                margin-left: 0;
                padding: 16px 0 24px 56px;
            }
            .timeline-item.left .timeline-dot,
            .timeline-item.right .timeline-dot {
                left: 14px;
                right: auto;
            }
            .timeline-card {
                padding: 18px;
            }
        }

        /* ===== Topic Cards ===== */
        .topic-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 24px;
        }
        @media (min-width:768px) {
            .topic-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (min-width:1024px) {
            .topic-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }
        .topic-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 28px;
            transition: all .3s ease;
            display: flex;
            flex-direction: column;
        }
        .topic-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card);
            border-color: var(--accent);
        }
        .topic-icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background: var(--bg-gray);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
            transition: background .3s;
        }
        .topic-card:hover .topic-icon {
            background: rgba(201, 155, 69, .15);
        }
        .topic-icon svg {
            width: 22px;
            height: 22px;
            color: var(--primary);
        }
        .topic-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .topic-card p {
            font-size: 14px;
            color: var(--text-gray);
            line-height: 1.8;
            flex: 1;
            margin-bottom: 16px;
        }
        .topic-link {
            display: inline-flex;
            align-items: center;
            font-size: 14px;
            font-weight: 500;
            color: var(--primary);
            transition: color .2s;
        }
        .topic-link:hover {
            color: var(--accent);
        }
        .topic-link svg {
            width: 16px;
            height: 16px;
            margin-left: 4px;
            transition: transform .25s;
        }
        .topic-link:hover svg {
            transform: translateX(4px);
        }

        /* ===== FAQ ===== */
        .faq-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 48px;
        }
        @media (min-width:1024px) {
            .faq-grid {
                grid-template-columns: 1fr 2fr;
                gap: 64px;
            }
        }
        .faq-side h2 {
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 16px;
            line-height: 1.3;
            position: relative;
            padding-left: 16px;
        }
        .faq-side h2::before {
            content: '';
            position: absolute;
            left: 0;
            top: 4px;
            width: 4px;
            height: 24px;
            background: var(--accent);
            border-radius: 2px;
        }
        .faq-side p {
            font-size: 14px;
            color: var(--text-gray);
            line-height: 1.8;
            margin-bottom: 20px;
        }
        .faq-side a {
            font-size: 14px;
            font-weight: 500;
            color: var(--primary);
            text-decoration: underline;
            text-decoration-color: var(--accent);
            text-underline-offset: 4px;
            text-decoration-thickness: 2px;
        }
        .faq-list {
            display: flex;
            flex-direction: column;
        }
        .faq-item {
            border-bottom: 1px solid var(--border);
        }
        .faq-item summary {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 0;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-dark);
            list-style: none;
            transition: color .2s;
            user-select: none;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary .q-mark {
            color: var(--accent);
            font-weight: 700;
            margin-right: 10px;
            font-size: 15px;
        }
        .faq-item summary .faq-icon {
            width: 20px;
            height: 20px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            color: var(--accent);
            font-weight: 400;
            transition: transform .2s;
            flex-shrink: 0;
            margin-left: 16px;
        }
        .faq-item[open] summary .faq-icon {
            transform: rotate(45deg);
        }
        .faq-item[open] summary {
            color: var(--primary);
        }
        .faq-answer {
            padding: 0 0 20px;
            font-size: 14px;
            color: var(--text-gray);
            line-height: 1.8;
        }

        /* ===== CTA ===== */
        .cta-band {
            background: var(--primary);
            color: #fff;
            padding: 80px 0;
            position: relative;
            overflow: hidden;
            text-align: center;
        }
        .cta-band::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: linear-gradient(rgba(14, 59, 52, .82), rgba(14, 59, 52, .9)), url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            opacity: .30;
        }
        .cta-band .container {
            position: relative;
            z-index: 2;
        }
        .cta-band h2 {
            font-size: 32px;
            font-weight: 700;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
        .cta-band p {
            font-size: 15px;
            color: rgba(255, 255, 255, .75);
            margin-bottom: 36px;
            max-width: 540px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.8;
        }
        .cta-form {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            margin-bottom: 16px;
        }
        .cta-form input {
            width: 300px;
            max-width: 100%;
            border-radius: var(--radius-full);
            border: none;
            background: #fff;
            padding: 14px 24px;
            font-size: 14px;
            color: var(--text-dark);
            transition: box-shadow .25s;
        }
        .cta-form input:focus {
            box-shadow: 0 0 0 3px rgba(201, 155, 69, .4);
        }
        .cta-form .btn {
            padding: 14px 32px;
        }
        .cta-note {
            font-size: 12px;
            color: rgba(255, 255, 255, .4);
            line-height: 1.6;
            margin-top: 8px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary);
            color: rgba(255, 255, 255, .7);
            padding-top: 64px;
            font-size: 14px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 40px;
            padding-bottom: 48px;
        }
        @media (min-width:640px) {
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (min-width:1024px) {
            .footer-grid {
                grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
                gap: 32px;
            }
        }
        .footer-logo {
            font-size: 24px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-desc {
            font-size: 14px;
            color: rgba(255, 255, 255, .5);
            line-height: 1.8;
            margin-bottom: 20px;
            max-width: 280px;
        }
        .footer-contact a {
            font-size: 14px;
            color: rgba(255, 255, 255, .7);
            transition: color .2s;
        }
        .footer-contact a:hover {
            color: var(--accent);
        }
        .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: .5px;
        }
        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-col ul li a {
            font-size: 14px;
            color: rgba(255, 255, 255, .6);
            transition: color .2s;
        }
        .footer-col ul li a:hover {
            color: var(--accent);
        }
        .footer-col p {
            font-size: 13px;
            color: rgba(255, 255, 255, .55);
            line-height: 1.8;
            margin-bottom: 8px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .1);
            padding: 24px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
            color: rgba(255, 255, 255, .45);
        }

        /* ===== Floating CTA ===== */
        .floating-cta {
            position: fixed;
            bottom: 28px;
            right: 28px;
            z-index: 80;
            background: var(--primary);
            color: #fff;
            border-radius: var(--radius-full);
            padding: 14px 24px;
            font-size: 14px;
            font-weight: 500;
            box-shadow: 0 8px 24px rgba(14, 59, 52, .3);
            opacity: 0;
            visibility: hidden;
            transform: translateY(16px);
            transition: all .35s ease;
        }
        .floating-cta.visible {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        .floating-cta:hover {
            background: var(--accent);
            transform: translateY(-2px);
        }
        @media (max-width:640px) {
            .floating-cta {
                padding: 10px 16px;
                font-size: 13px;
                right: 16px;
                bottom: 16px;
            }
        }

        /* ===== Responsive Nav ===== */
        @media (max-width:1024px) {
            .desktop-nav,
            .header-actions .btn {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .header-actions .search-btn {
                display: flex;
            }
        }
        @media (min-width:1025px) {
            .mobile-menu {
                display: none !important;
            }
        }

        /* ===== Background Section ===== */
        .bg-gray-band {
            background: var(--bg-gray);
        }
        .bg-warm-band {
            background: var(--bg-warm);
        }

        /* ===== Tag Pills ===== */
        .tag-pills {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 20px;
        }
        .tag-pill {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-full);
            padding: 6px 16px;
            font-size: 13px;
            color: var(--text-gray);
            transition: all .25s;
        }
        .tag-pill:hover {
            border-color: var(--accent);
            color: var(--primary);
        }

/* roulang page: category4 */
:root{
    --primary:#0E3B34;
    --accent:#C99B45;
    --bg:#FAF8F4;
    --card:#FFFFFF;
    --text:#1C1F1E;
    --text-2:#4B5563;
    --text-3:#9CA3AF;
    --line:#E8E5DF;
    --success:#2F7D5C;
    --light-block:#F5F3EF;
    --radius:16px;
    --shadow:0 8px 30px rgba(0,0,0,0.06);
    --font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  }
  *,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
  html{scroll-behavior:smooth;}
  body{
    font-family:var(--font-family);
    background:var(--bg);
    color:var(--text);
    line-height:1.7;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;}
  a{text-decoration:none;color:inherit;transition:color .3s ease;}
  ul,ol{list-style:none;}
  .container{max-width:1280px;margin:0 auto;padding:0 24px;}
  @media(min-width:768px){.container{padding:0 32px;}}
  @media(min-width:1024px){.container{padding:0 40px;}}
  .section{padding:72px 0;}
  @media(min-width:768px){.section{padding:96px 0;}}
  .section-head{margin-bottom:48px;}
  .section-title{
    font-size:30px;
    line-height:1.3;
    font-weight:700;
    letter-spacing:-0.02em;
    position:relative;
    padding-left:20px;
  }
  .section-title::before{
    content:"";
    position:absolute;
    left:0;top:6px;
    width:4px;height:26px;
    background:var(--accent);
    border-radius:2px;
  }
  .section-sub{
    font-size:15px;
    color:var(--text-2);
    margin-top:12px;
    margin-left:20px;
    max-width:640px;
  }
  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:6px;
    border-radius:999px;
    font-size:14px;
    font-weight:500;
    padding:12px 28px;
    cursor:pointer;
    border:none;
    transition:all .3s ease;
    white-space:nowrap;
  }
  .btn-primary{
    background:var(--accent);
    color:#fff;
    box-shadow:0 6px 20px rgba(201,155,69,0.28);
  }
  .btn-primary:hover{background:var(--primary);box-shadow:0 8px 24px rgba(14,59,52,0.22);}
  .btn-secondary{
    background:transparent;
    border:1px solid var(--line);
    color:var(--text);
  }
  .btn-secondary:hover{border-color:var(--primary);color:var(--primary);}
  .btn-sm{padding:9px 22px;font-size:13px;}

  .site-header{
    position:sticky;
    top:0;
    z-index:100;
    background:rgba(250,248,244,0.92);
    backdrop-filter:blur(12px);
    border-bottom:1px solid var(--line);
  }
  .header-inner{
    display:flex;
    align-items:center;
    justify-content:space-between;
    height:80px;
  }
  .logo{display:flex;align-items:center;font-size:24px;font-weight:700;letter-spacing:-0.01em;}
  .logo-en{color:var(--primary);font-weight:800;}
  .logo-dot{color:var(--accent);margin:0 3px;font-weight:400;}
  .logo-zh{color:var(--text);font-weight:600;}
  .desktop-nav{display:flex;align-items:center;gap:28px;}
  .nav-link{
    font-size:14px;
    font-weight:500;
    color:#4B5563;
    position:relative;
    padding:6px 0;
    background:none;
    border:none;
    cursor:pointer;
    display:inline-flex;
    align-items:center;
    gap:4px;
    transition:color .25s;
  }
  .nav-link:hover{color:var(--primary);}
  .nav-link.active{
    color:var(--primary);
    font-weight:600;
  }
  .nav-link.active::after{
    content:"";
    position:absolute;
    bottom:-2px;left:0;
    width:100%;height:2px;
    background:var(--accent);
    border-radius:1px;
  }
  .nav-dropdown{position:relative;}
  .dropdown-trigger svg{transition:transform .25s;}
  .nav-dropdown:hover .dropdown-trigger svg{transform:rotate(180deg);}
  .dropdown-menu{
    position:absolute;
    top:calc(100% + 12px);
    left:50%;
    transform:translateX(-50%);
    background:#fff;
    border:1px solid var(--line);
    border-radius:8px;
    min-width:170px;
    padding:8px;
    opacity:0;
    visibility:hidden;
    transition:all .25s ease;
    box-shadow:0 12px 32px rgba(0,0,0,0.08);
  }
  .dropdown-menu::before{
    content:"";
    position:absolute;
    top:-20px;left:0;
    width:100%;height:20px;
  }
  .nav-dropdown:hover .dropdown-menu{
    opacity:1;
    visibility:visible;
    transform:translateX(-50%) translateY(0);
  }
  .dropdown-menu a{
    display:block;
    padding:10px 16px;
    font-size:14px;
    font-weight:500;
    color:var(--text-2);
    border-radius:6px;
    transition:all .2s;
  }
  .dropdown-menu a:hover{background:var(--light-block);color:var(--primary);}
  .dropdown-menu a.active{color:var(--primary);font-weight:600;background:rgba(14,59,52,0.06);}
  .header-actions{display:flex;align-items:center;gap:12px;}
  .search-btn{
    width:40px;height:40px;
    border-radius:50%;
    display:flex;align-items:center;justify-content:center;
    background:transparent;border:none;
    cursor:pointer;
    color:var(--text-2);
    transition:all .25s;
  }
  .search-btn:hover{background:var(--light-block);color:var(--primary);}
  .search-btn svg{width:19px;height:19px;}
  .hamburger{
    display:none;
    flex-direction:column;
    gap:5px;
    background:none;border:none;
    cursor:pointer;
    padding:8px;
  }
  .hamburger span{
    width:22px;height:2px;
    background:var(--text);
    border-radius:2px;
    transition:all .3s;
  }
  .hamburger.open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
  .hamburger.open span:nth-child(2){opacity:0;}
  .hamburger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
  .mobile-menu{
    display:none;
    position:fixed;
    top:80px;left:0;right:0;bottom:0;
    background:var(--bg);
    padding:32px 24px 48px;
    overflow-y:auto;
    flex-direction:column;
    gap:8px;
    z-index:99;
  }
  .mobile-menu.open{display:flex;}
  .mobile-menu a{
    font-size:16px;
    color:var(--text-2);
    padding:14px 8px;
    text-align:center;
    font-weight:500;
    border-bottom:1px solid rgba(232,229,223,0.7);
  }
  .mobile-menu a:active{color:var(--primary);}
  .mobile-sub{
    display:flex;
    flex-wrap:wrap;
    gap:8px;
    justify-content:center;
    padding:12px 0 24px;
  }
  .mobile-sub a{
    font-size:13px;
    border:1px solid var(--line);
    border-radius:999px;
    padding:7px 16px;
    color:var(--text-2);
  }

  .page-hero{
    background:var(--light-block);
    padding:88px 0 64px;
    border-bottom:1px solid var(--line);
    position:relative;
    overflow:hidden;
  }
  .page-hero::before{
    content:"";
    position:absolute;
    right:-80px;top:-80px;
    width:300px;height:300px;
    background:radial-gradient(circle,rgba(201,155,69,0.08),transparent 70%);
    border-radius:50%;
  }
  .breadcrumb{
    font-size:13px;
    color:var(--text-3);
    margin-bottom:32px;
    display:flex;
    gap:8px;
    align-items:center;
  }
  .breadcrumb a{color:var(--text-3);}
  .breadcrumb a:hover{color:var(--primary);}
  .breadcrumb span{color:var(--text-2);}
  .page-hero h1{
    font-size:42px;
    line-height:1.2;
    font-weight:800;
    letter-spacing:-0.03em;
    color:var(--text);
    margin-bottom:20px;
  }
  .page-hero .hero-sub{
    font-size:17px;
    color:var(--text-2);
    max-width:720px;
    line-height:1.8;
  }
  .hero-stats{
    display:grid;
    grid-template-columns:repeat(2,1fr);
    gap:16px;
    margin-top:48px;
    max-width:720px;
  }
  @media(min-width:768px){
    .hero-stats{grid-template-columns:repeat(4,1fr);}
  }
  .hero-stat{
    background:#fff;
    border:1px solid var(--line);
    border-radius:12px;
    padding:20px 16px;
    text-align:center;
  }
  .hero-stat .num{
    font-size:28px;
    font-weight:800;
    color:var(--success);
    line-height:1.2;
  }
  .hero-stat .label{
    font-size:13px;
    color:var(--text-2);
    margin-top:4px;
  }

  .case-section{padding:80px 0;}
  .case-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:28px;
  }
  @media(min-width:768px){
    .case-grid{grid-template-columns:repeat(3,1fr);}
  }
  .case-card{
    background:#fff;
    border:1px solid var(--line);
    border-radius:14px;
    padding:0;
    overflow:hidden;
    transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
    display:flex;
    flex-direction:column;
  }
  .case-card:hover{
    transform:translateY(-6px);
    box-shadow:var(--shadow);
    border-color:var(--accent);
  }
  .case-card.featured{grid-column:span 1;}
  @media(min-width:768px){
    .case-card.featured{grid-column:span 2;}
  }
  .case-card .case-img{
    width:100%;
    height:auto;
    max-height:220px;
    min-height:180px;
    object-fit:cover;
    background:var(--light-block);
  }
  .case-body{padding:28px;display:flex;flex-direction:column;flex:1;}
  .case-tag{
    display:inline-flex;
    align-self:flex-start;
    font-size:12px;
    font-weight:600;
    color:var(--primary);
    background:rgba(14,59,52,0.06);
    border-radius:999px;
    padding:4px 14px;
    margin-bottom:16px;
  }
  .case-card h3{
    font-size:19px;
    font-weight:700;
    line-height:1.4;
    margin-bottom:12px;
    color:var(--text);
  }
  .case-card p{
    font-size:14px;
    color:var(--text-2);
    line-height:1.8;
    flex:1;
  }
  .case-result{
    margin-top:20px;
    padding-top:16px;
    border-top:1px solid var(--line);
    display:flex;
    align-items:center;
    gap:8px;
    font-size:15px;
    font-weight:700;
    color:var(--success);
  }
  .case-result svg{width:16px;height:16px;flex-shrink:0;}

  .industry-band{
    background:var(--primary);
    padding:72px 0;
    color:#fff;
  }
  .industry-grid{
    display:grid;
    grid-template-columns:repeat(2,1fr);
    gap:24px 40px;
    margin-top:40px;
  }
  @media(min-width:768px){
    .industry-grid{grid-template-columns:repeat(4,1fr);}
  }
  .industry-item{
    display:flex;
    align-items:center;
    gap:12px;
  }
  .industry-item .dot{
    width:6px;height:6px;
    border-radius:50%;
    background:var(--accent);
    flex-shrink:0;
  }
  .industry-item span{
    font-size:15px;
    font-weight:500;
    color:rgba(255,255,255,0.85);
  }
  .industry-item small{
    display:block;
    font-size:12px;
    color:rgba(255,255,255,0.5);
    margin-top:2px;
  }

  .quote-section{padding:80px 0;}
  .quote-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:28px;
  }
  @media(min-width:768px){
    .quote-grid{grid-template-columns:repeat(2,1fr);}
  }
  .quote-card{
    background:#fff;
    border:1px solid var(--line);
    border-radius:14px;
    padding:32px;
    position:relative;
  }
  .quote-card::before{
    content:"\"";
    font-size:64px;
    line-height:1;
    color:var(--accent);
    font-weight:800;
    position:absolute;
    top:20px;right:24px;
    opacity:0.15;
  }
  .quote-card blockquote{
    font-size:16px;
    color:var(--text);
    line-height:1.9;
    margin-bottom:20px;
  }
  .quote-card .author{
    font-size:14px;
    color:var(--text-2);
    font-weight:500;
  }
  .quote-card .author span{
    display:block;
    font-size:13px;
    color:var(--text-3);
    font-weight:400;
    margin-top:4px;
  }

  .process-section{background:var(--light-block);padding:80px 0;}
  .process-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:28px;
    margin-top:40px;
  }
  @media(min-width:768px){
    .process-grid{grid-template-columns:repeat(4,1fr);}
  }
  .process-step{
    background:#fff;
    border:1px solid var(--line);
    border-radius:14px;
    padding:32px 24px;
    text-align:center;
    transition:transform .3s ease,box-shadow .3s ease;
  }
  .process-step:hover{
    transform:translateY(-4px);
    box-shadow:var(--shadow);
  }
  .process-step .step-num{
    font-size:36px;
    font-weight:800;
    color:var(--line);
    line-height:1;
    display:block;
    margin-bottom:16px;
  }
  .process-step h3{
    font-size:17px;
    font-weight:700;
    margin-bottom:10px;
  }
  .process-step p{
    font-size:13px;
    color:var(--text-2);
    line-height:1.7;
  }

  .faq-section{padding:80px 0;}
  .faq-layout{
    display:grid;
    grid-template-columns:1fr;
    gap:48px;
  }
  @media(min-width:1024px){
    .faq-layout{grid-template-columns:1fr 2fr;}
  }
  .faq-side .section-title{margin-bottom:16px;}
  .faq-side p{
    font-size:15px;
    color:var(--text-2);
    line-height:1.8;
    margin-bottom:24px;
  }
  .faq-side .contact-link{
    font-size:14px;
    color:var(--primary);
    font-weight:600;
    border-bottom:2px solid var(--accent);
    padding-bottom:2px;
  }
  .faq-list details{
    border-bottom:1px solid var(--line);
  }
  .faq-list summary{
    display:flex;
    align-items:center;
    justify-content:space-between;
    padding:22px 4px;
    cursor:pointer;
    font-size:16px;
    font-weight:600;
    color:var(--text);
    list-style:none;
    transition:color .25s;
  }
  .faq-list summary::-webkit-details-marker{display:none;}
  .faq-list summary:hover{color:var(--primary);}
  .faq-list details[open] summary{color:var(--primary);}
  .faq-list summary .q-mark{
    color:var(--accent);
    font-weight:800;
    margin-right:10px;
  }
  .faq-list summary .icon{
    width:20px;height:20px;
    border-radius:50%;
    border:1px solid var(--line);
    display:flex;align-items:center;justify-content:center;
    font-size:13px;
    color:var(--text-2);
    transition:transform .25s,background .25s,color .25s;
    flex-shrink:0;
  }
  .faq-list details[open] summary .icon{
    transform:rotate(45deg);
    background:var(--accent);
    border-color:var(--accent);
    color:#fff;
  }
  .faq-list details .answer{
    padding:0 4px 22px;
    font-size:15px;
    color:var(--text-2);
    line-height:1.9;
  }

  .cta-section{
    background:var(--primary);
    padding:72px 0;
    color:#fff;
    text-align:center;
    border-bottom:1px solid rgba(201,155,69,0.4);
  }
  .cta-section h2{
    font-size:32px;
    font-weight:800;
    margin-bottom:16px;
    letter-spacing:-0.02em;
  }
  .cta-section p{
    font-size:15px;
    color:rgba(255,255,255,0.75);
    max-width:560px;
    margin:0 auto 36px;
    line-height:1.8;
  }
  .cta-form{
    display:flex;
    flex-direction:column;
    gap:12px;
    justify-content:center;
    align-items:center;
    max-width:520px;
    margin:0 auto;
  }
  @media(min-width:768px){
    .cta-form{flex-direction:row;}
  }
  .cta-form input{
    width:100%;
    border:none;
    border-radius:999px;
    padding:14px 24px;
    font-size:14px;
    outline:none;
    background:#fff;
    color:var(--text);
    transition:box-shadow .3s;
  }
  .cta-form input:focus{
    box-shadow:0 0 0 3px rgba(201,155,69,0.4);
  }
  .cta-form .btn-primary{padding:14px 32px;}
  .cta-note{
    font-size:12px;
    color:rgba(255,255,255,0.4);
    margin-top:20px;
  }

  .site-footer{
    background:var(--primary);
    color:rgba(255,255,255,0.7);
    padding:72px 0 0;
  }
  .footer-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:40px;
    padding-bottom:48px;
  }
  @media(min-width:768px){
    .footer-grid{grid-template-columns:repeat(2,1fr);}
  }
  @media(min-width:1024px){
    .footer-grid{grid-template-columns:2fr 1fr 1fr 1.2fr;}
  }
  .footer-logo{
    font-size:24px;
    font-weight:700;
    color:#fff;
    margin-bottom:16px;
  }
  .footer-desc{
    font-size:14px;
    color:rgba(255,255,255,0.55);
    line-height:1.8;
    max-width:320px;
    margin-bottom:20px;
  }
  .footer-contact a{
    font-size:14px;
    color:var(--accent);
    font-weight:500;
  }
  .footer-col h4{
    font-size:14px;
    font-weight:700;
    color:#fff;
    margin-bottom:20px;
    letter-spacing:0.03em;
  }
  .footer-col ul{display:flex;flex-direction:column;gap:12px;}
  .footer-col ul a{
    font-size:14px;
    color:rgba(255,255,255,0.6);
  }
  .footer-col ul a:hover{color:var(--accent);}
  .footer-col p{
    font-size:13px;
    color:rgba(255,255,255,0.55);
    line-height:1.8;
    margin-bottom:8px;
  }
  .footer-bottom{
    border-top:1px solid rgba(255,255,255,0.1);
    padding:24px 0;
    display:flex;
    flex-direction:column;
    gap:8px;
    align-items:center;
    justify-content:space-between;
    font-size:13px;
    color:rgba(255,255,255,0.45);
  }
  @media(min-width:768px){
    .footer-bottom{flex-direction:row;}
  }

  .floating-cta{
    position:fixed;
    right:24px;bottom:24px;
    background:var(--primary);
    color:#fff;
    border-radius:999px;
    padding:13px 24px;
    font-size:14px;
    font-weight:600;
    box-shadow:0 10px 32px rgba(14,59,52,0.35);
    opacity:0;
    visibility:hidden;
    transform:translateY(12px);
    transition:all .4s ease;
    z-index:90;
  }
  .floating-cta.visible{
    opacity:1;
    visibility:visible;
    transform:translateY(0);
  }
  .floating-cta:hover{background:var(--accent);}
  @media(max-width:520px){
    .floating-cta{
      padding:12px 16px;
      font-size:13px;
    }
  }
  @media(max-width:768px){
    .desktop-nav{display:none;}
    .header-actions .btn-primary{display:none;}
    .hamburger{display:flex;}
  }