/* roulang page: index */
/* ===== CSS 设计变量 ===== */
:root {
  --color-primary: #0E6B5C;
  --color-primary-hover: #0A5448;
  --color-primary-soft: #E3F0ED;
  --color-accent: #C6A15B;
  --color-accent-soft: #F5EFE2;
  --color-bg: #FAF9F7;
  --color-surface: #FFFFFF;
  --color-text: #1F2A28;
  --color-text-secondary: #5C6B67;
  --color-border: #E6E1D8;
  --radius-card: 12px;
  --radius-btn: 999px;
  --radius-tag: 6px;
  --shadow-card: 0 4px 20px rgba(14, 107, 92, 0.06);
  --shadow-card-hover: 0 8px 30px rgba(14, 107, 92, 0.12);
  --shadow-btn: 0 4px 14px rgba(14, 107, 92, 0.25);
  --font-serif: 'Noto Serif SC', 'Source Han Serif SC', Georgia, 'Times New Roman', serif;
  --font-sans: 'Inter', 'Noto Sans SC', 'Source Han Sans SC', system-ui, -apple-system, sans-serif;
}

/* ===== Reset & Base ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color 0.2s ease-out; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input { font-family: inherit; outline: none; }
i { font-style: normal; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 32px; }
.section { padding: 96px 0; }
.section-head { display: flex; justify-content: space-between; align-items: flex-end; margin-bottom: 48px; flex-wrap: wrap; gap: 16px; }
.section-title { font-family: var(--font-serif); font-size: 32px; font-weight: 700; line-height: 1.3; color: var(--color-text); }
.section-sub { color: var(--color-text-secondary); font-size: 14px; letter-spacing: 1.5px; margin-top: 8px; }
.section-link { font-size: 14px; color: var(--color-primary); font-weight: 600; display: inline-flex; align-items: center; gap: 6px; transition: gap 0.3s; }
.section-link:hover { gap: 10px; }
::selection { background: var(--color-primary-soft); color: var(--color-primary); }

/* ===== 按钮 ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 14px 32px; border-radius: var(--radius-btn);
  font-size: 15px; font-weight: 600; line-height: 1.2;
  transition: all 0.3s ease-out; white-space: nowrap;
}
.btn:active { transform: scale(0.98); }
.btn:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 3px; }
.btn-primary { background: var(--color-primary); color: #fff; box-shadow: var(--shadow-btn); }
.btn-primary:hover { background: var(--color-primary-hover); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(14,107,92,0.3); }
.btn-secondary { background: #fff; color: var(--color-primary); border: 1px solid var(--color-primary); }
.btn-secondary:hover { background: var(--color-primary); color: #fff; transform: translateY(-2px); }
.btn-gold { background: transparent; color: var(--color-accent); border: 1px solid var(--color-accent); }
.btn-gold:hover { background: var(--color-accent); color: #fff; transform: translateY(-2px); }
.btn-lg { padding: 16px 40px; font-size: 16px; }
.btn-sm { padding: 8px 20px; font-size: 13px; }

/* ===== 导航 Header ===== */
.site-header {
  position: sticky; top: 0; z-index: 1000;
  background: rgba(255,255,255,0.98);
  border-bottom: 1px solid var(--color-border);
  box-shadow: 0 1px 0 rgba(0,0,0,0.04);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 78px; gap: 24px; }
.logo { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.logo-icon {
  width: 42px; height: 42px; border-radius: 10px;
  background: var(--color-primary);
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-family: var(--font-serif); font-weight: 700; font-size: 17px;
  box-shadow: 0 2px 10px rgba(14,107,92,0.2);
}
.logo-wrap { display: flex; flex-direction: column; line-height: 1.2; }
.logo-text { font-family: var(--font-serif); font-size: 19px; font-weight: 700; color: var(--color-text); }
.logo-domain { font-size: 10px; color: var(--color-text-secondary); letter-spacing: 0.5px; }
.main-nav { display: flex; gap: 8px; align-items: center; }
.main-nav a {
  font-size: 15px; color: var(--color-text-secondary); font-weight: 500;
  padding: 8px 16px; border-radius: 8px; position: relative;
  transition: all 0.2s ease-out;
}
.main-nav a:hover { color: var(--color-primary); background: var(--color-primary-soft); }
.main-nav a.active { color: var(--color-primary); font-weight: 600; background: transparent; }
.main-nav a.active::after {
  content: ''; position: absolute; bottom: -2px; left: 16px; right: 16px;
  height: 2px; background: var(--color-accent); border-radius: 2px;
}
.header-actions { display: flex; align-items: center; gap: 14px; flex-shrink: 0; }
.search-box { position: relative; }
.search-box input {
  width: 200px; height: 42px; border-radius: 999px;
  border: 1px solid transparent; background: #F5F4F2;
  padding: 0 42px 0 18px; font-size: 14px;
  transition: all 0.3s ease-out;
  color: var(--color-text);
}
.search-box input::placeholder { color: #9DA8A4; }
.search-box input:focus { border-color: var(--color-primary); background: #fff; box-shadow: 0 0 0 3px rgba(14,107,92,0.08); }
.search-box .search-icon {
  position: absolute; right: 16px; top: 50%; transform: translateY(-50%);
  color: var(--color-text-secondary); font-size: 14px; pointer-events: none;
}
.mobile-toggle { display: none; width: 40px; height: 40px; border-radius: 8px; align-items: center; justify-content: center; background: var(--color-primary-soft); color: var(--color-primary); font-size: 18px; }

/* 移动端抽屉 */
.mobile-menu {
  position: fixed; top: 0; left: 0; width: 100%; height: 100%; z-index: 2000;
  background: var(--color-bg); display: none;
  flex-direction: column; padding: 24px 32px;
}
.mobile-menu.open { display: flex; }
.mobile-menu-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 32px; }
.mobile-menu-close { width: 40px; height: 40px; border-radius: 8px; background: var(--color-primary-soft); display: flex; align-items: center; justify-content: center; color: var(--color-primary); font-size: 18px; }
.mobile-menu nav { display: flex; flex-direction: column; gap: 8px; }
.mobile-menu nav a { font-size: 20px; font-family: var(--font-serif); color: var(--color-text); padding: 14px 0; border-bottom: 1px solid var(--color-border); font-weight: 600; }
.mobile-menu nav a.active { color: var(--color-primary); }
.mobile-menu .btn { margin-top: 24px; width: 100%; }

/* ===== Hero ===== */
.hero { background: var(--color-bg); padding: 72px 0 0; position: relative; overflow: hidden; }
.hero-inner { display: grid; grid-template-columns: 55% 45%; gap: 48px; align-items: center; min-height: 600px; }
.hero-content { padding-right: 24px; animation: fadeUp 0.6s ease-out both; }
.hero-tag {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 12px; letter-spacing: 2px; text-transform: uppercase;
  color: var(--color-accent); border: 1px solid var(--color-accent);
  padding: 6px 18px; border-radius: 999px; margin-bottom: 28px;
  font-weight: 600;
}
.hero-title {
  font-family: var(--font-serif); font-size: 50px; line-height: 1.3;
  font-weight: 700; color: var(--color-text); margin-bottom: 24px;
  letter-spacing: 0.5px;
}
.hero-title span { color: var(--color-primary); }
.hero-subtitle { font-size: 17px; color: var(--color-text-secondary); line-height: 1.8; margin-bottom: 40px; max-width: 460px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; animation: fadeUp 0.6s 0.15s ease-out both; }
.hero-media { position: relative; animation: fadeUp 0.8s 0.2s ease-out both; }
.hero-media .hero-img-wrap {
  position: relative; z-index: 1;
  border-radius: 8px; overflow: hidden;
  box-shadow: var(--shadow-card-hover);
}
.hero-media .hero-img-wrap img { width: 100%; height: 520px; object-fit: cover; }
.hero-media .hero-img-wrap::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(14,107,92,0.08) 0%, rgba(14,107,92,0.02) 50%, transparent 100%);
}
.hero-media::before {
  content: ''; position: absolute; top: -16px; left: 16px;
  width: 100%; height: 100%; border: 2px solid var(--color-accent);
  border-radius: 8px; z-index: 0;
}
.hero-media::after {
  content: ''; position: absolute; width: 240px; height: 240px;
  background: rgba(14,107,92,0.05); border-radius: 50%;
  bottom: -40px; right: -40px; z-index: 0;
}
@keyframes fadeUp { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: translateY(0); } }

/* ===== 信任指标条 ===== */
.trust-bar { background: var(--color-surface); border-top: 1px solid var(--color-border); border-bottom: 1px solid var(--color-border); }
.trust-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.trust-item { padding: 40px 24px; text-align: center; border-right: 1px solid var(--color-border); }
.trust-item:last-child { border-right: none; }
.trust-number { font-family: var(--font-serif); font-size: 36px; color: var(--color-primary); font-weight: 700; line-height: 1.3; }
.trust-label { font-size: 13px; color: var(--color-text-secondary); margin-top: 6px; letter-spacing: 0.5px; }

/* ===== 核心服务 ===== */
.services { background: var(--color-bg); }
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.service-card {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius-card); overflow: hidden;
  transition: all 0.3s ease-out; position: relative;
}
.service-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: var(--color-accent); opacity: 0; transition: opacity 0.3s; z-index: 2;
}
.service-card:hover { box-shadow: var(--shadow-card-hover); transform: translateY(-4px); }
.service-card:hover::before { opacity: 1; }
.service-media { height: 200px; overflow: hidden; }
.service-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease-out; }
.service-card:hover .service-media img { transform: scale(1.04); }
.service-body { padding: 28px; }
.service-tag {
  display: inline-block; font-size: 12px; color: var(--color-accent);
  background: var(--color-accent-soft); padding: 4px 12px;
  border-radius: var(--radius-tag); margin-bottom: 14px; font-weight: 600;
  letter-spacing: 0.5px;
}
.service-title { font-family: var(--font-serif); font-size: 20px; font-weight: 700; margin-bottom: 12px; color: var(--color-text); }
.service-desc { font-size: 14px; color: var(--color-text-secondary); line-height: 1.7; margin-bottom: 20px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.service-link { font-size: 14px; color: var(--color-primary); font-weight: 600; display: inline-flex; align-items: center; gap: 4px; transition: gap 0.3s; }
.service-link:hover { gap: 8px; }

/* ===== 最新资讯 ===== */
.news-section { background: var(--color-surface); }
.news-layout { display: grid; grid-template-columns: 7fr 5fr; gap: 40px; }
.news-featured {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius-card); overflow: hidden;
  transition: all 0.3s ease-out; height: 100%;
}
.news-featured:hover { border-color: var(--color-primary); box-shadow: var(--shadow-card-hover); }
.news-featured-media { height: 280px; overflow: hidden; }
.news-featured-media img { width: 100%; height: 100%; object-fit: cover; }
.news-featured-body { padding: 28px; }
.news-cat {
  display: inline-block; font-size: 12px; color: var(--color-accent);
  background: var(--color-accent-soft); padding: 4px 12px;
  border-radius: var(--radius-tag); margin-bottom: 12px; font-weight: 600;
}
.news-featured-title { font-family: var(--font-serif); font-size: 24px; font-weight: 700; margin-bottom: 12px; line-height: 1.4; }
.news-featured-title a:hover { color: var(--color-primary); }
.news-featured-desc { font-size: 14px; color: var(--color-text-secondary); line-height: 1.7; margin-bottom: 16px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-meta { display: flex; gap: 16px; font-size: 13px; color: var(--color-text-secondary); align-items: center; }
.news-meta span { display: inline-flex; align-items: center; gap: 6px; }
.news-list { display: flex; flex-direction: column; gap: 20px; }
.news-item {
  display: flex; gap: 16px; align-items: center;
  padding: 16px; border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  transition: all 0.3s ease-out; background: var(--color-surface);
}
.news-item:hover { border-color: var(--color-primary); box-shadow: var(--shadow-card); }
.news-item-thumb { width: 96px; height: 80px; border-radius: 8px; overflow: hidden; flex-shrink: 0; }
.news-item-thumb img { width: 100%; height: 100%; object-fit: cover; }
.news-item-body { flex: 1; min-width: 0; }
.news-item-title { font-size: 15px; font-weight: 600; line-height: 1.5; margin-bottom: 6px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-item-title a:hover { color: var(--color-primary); }
.news-item-date { font-size: 12px; color: var(--color-text-secondary); display: flex; align-items: center; gap: 4px; }
.news-more-wrap { text-align: center; margin-top: 48px; }
.news-empty {
  background: var(--color-primary-soft); border-radius: var(--radius-card);
  padding: 48px; text-align: center; color: var(--color-primary);
  font-size: 15px; display: flex; align-items: center; justify-content: center; gap: 12px;
}

/* ===== 评价轮播 ===== */
.testimonials { background: var(--color-primary); position: relative; overflow: hidden; }
.testimonials::before {
  content: ''; position: absolute; top: -80px; right: -80px;
  width: 300px; height: 300px; border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.1);
}
.testimonials .section-title { color: #fff; }
.testimonials .section-sub { color: rgba(255,255,255,0.6); }
.t-carousel { position: relative; max-width: 720px; margin: 0 auto; }
.t-track { position: relative; overflow: hidden; min-height: 260px; }
.t-slide { position: absolute; inset: 0; opacity: 0; transition: opacity 0.6s ease-out, transform 0.6s ease-out; transform: translateX(40px); }
.t-slide.active { opacity: 1; transform: translateX(0); position: relative; }
.t-card {
  background: rgba(255,255,255,0.1); border: 1px solid rgba(255,255,255,0.08);
  border-radius: 16px; padding: 40px; text-align: center;
  backdrop-filter: blur(4px);
}
.t-stars { color: var(--color-accent); font-size: 16px; margin-bottom: 20px; letter-spacing: 4px; }
.t-quote { font-family: var(--font-serif); font-size: 18px; line-height: 1.8; color: #fff; margin-bottom: 24px; }
.t-person { display: flex; align-items: center; justify-content: center; gap: 12px; }
.t-avatar {
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--color-accent); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-serif); font-weight: 700; font-size: 16px;
}
.t-name { color: #fff; font-weight: 600; font-size: 14px; }
.t-role { color: rgba(255,255,255,0.6); font-size: 12px; }
.t-arrows { display: flex; justify-content: center; gap: 16px; margin-top: 32px; }
.t-arrow {
  width: 44px; height: 44px; border-radius: 50%; background: #fff;
  color: var(--color-primary); font-size: 16px; display: flex;
  align-items: center; justify-content: center;
  transition: all 0.3s; box-shadow: 0 4px 14px rgba(0,0,0,0.1);
}
.t-arrow:hover { background: var(--color-accent); color: #fff; transform: translateY(-2px); }
.t-dots { display: flex; justify-content: center; gap: 8px; margin-top: 20px; }
.t-dot { width: 8px; height: 8px; border-radius: 50%; background: rgba(255,255,255,0.3); transition: all 0.3s; }
.t-dot.active { background: var(--color-accent); width: 24px; border-radius: 4px; }

/* ===== 保障/资质 ===== */
.advantages { background: var(--color-bg); }
.adv-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
.adv-item { text-align: center; padding: 32px 24px; }
.adv-icon {
  width: 56px; height: 56px; border-radius: 50%;
  background: var(--color-primary-soft);
  color: var(--color-primary); font-size: 22px;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 20px;
}
.adv-title { font-family: var(--font-serif); font-size: 18px; font-weight: 700; margin-bottom: 8px; }
.adv-desc { font-size: 13px; color: var(--color-text-secondary); line-height: 1.6; max-width: 220px; margin: 0 auto; }

/* ===== FAQ ===== */
.faq { background: #F0F5F4; }
.faq-layout { display: grid; grid-template-columns: 320px 1fr; gap: 48px; }
.faq-left { position: sticky; top: 100px; align-self: start; }
.faq-nav { margin-top: 24px; display: flex; flex-direction: column; gap: 8px; }
.faq-nav a {
  font-size: 14px; color: var(--color-text-secondary);
  padding: 10px 16px; border-radius: 8px;
  transition: all 0.2s;
  border-left: 2px solid transparent;
}
.faq-nav a:hover { color: var(--color-primary); background: #fff; border-left-color: var(--color-accent); }
.faq-list { display: flex; flex-direction: column; gap: 0; }
.faq-item { border-bottom: 1px solid var(--color-border); }
.faq-item:first-child { border-top: 1px solid var(--color-border); }
.faq-question {
  width: 100%; display: flex; justify-content: space-between; align-items: center;
  padding: 20px 0; font-size: 16px; font-weight: 600; color: var(--color-text);
  transition: color 0.3s; background: transparent; text-align: left; gap: 16px;
}
.faq-question:hover { color: var(--color-primary); }
.faq-item.open .faq-question { color: var(--color-primary); }
.faq-icon { transition: transform 0.3s; color: var(--color-accent); font-size: 18px; flex-shrink: 0; }
.faq-item.open .faq-icon { transform: rotate(45deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.4s ease-out; }
.faq-answer-inner { padding: 0 0 24px; font-size: 14px; color: var(--color-text-secondary); line-height: 1.8; max-width: 680px; }
.faq-item.open .faq-answer { max-height: 300px; }
.faq-contact { margin-top: 32px; padding: 24px; background: var(--color-surface); border-radius: var(--radius-card); border: 1px solid var(--color-border); }
.faq-contact p { font-size: 14px; color: var(--color-text-secondary); margin-bottom: 16px; }

/* ===== CTA ===== */
.cta-section { background: var(--color-primary); position: relative; overflow: hidden; padding: 72px 0; }
.cta-section::before {
  content: ''; position: absolute; top: -60px; right: -60px;
  width: 240px; height: 240px; border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.08);
}
.cta-section::after {
  content: ''; position: absolute; bottom: -100px; left: -100px;
  width: 300px; height: 300px; border-radius: 50%;
  background: rgba(255,255,255,0.03);
}
.cta-content { position: relative; z-index: 1; text-align: center; max-width: 640px; margin: 0 auto; }
.cta-title { font-family: var(--font-serif); font-size: 32px; color: #fff; font-weight: 700; margin-bottom: 16px; line-height: 1.4; }
.cta-sub { color: rgba(255,255,255,0.7); font-size: 15px; margin-bottom: 32px; }
.cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.btn-white { background: #fff; color: var(--color-primary); }
.btn-white:hover { background: var(--color-accent); color: #fff; transform: translateY(-2px); box-shadow: 0 6px 20px rgba(0,0,0,0.15); }

/* ===== 页脚 ===== */
.site-footer { background: #1F2A28; color: rgba(255,255,255,0.7); padding: 80px 0 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: 48px; padding-bottom: 48px; }
.footer-brand .logo { margin-bottom: 20px; }
.footer-brand .logo-text { color: #fff; }
.footer-brand .logo-domain { color: rgba(255,255,255,0.4); }
.footer-desc { font-size: 14px; line-height: 1.7; color: rgba(255,255,255,0.6); max-width: 300px; }
.footer-social { display: flex; gap: 12px; margin-top: 20px; }
.footer-social a {
  width: 36px; height: 36px; border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.15);
  display: flex; align-items: center; justify-content: center;
  color: rgba(255,255,255,0.6); font-size: 14px;
  transition: all 0.3s;
}
.footer-social a:hover { background: var(--color-accent); border-color: var(--color-accent); color: #fff; }
.footer-title { font-size: 14px; color: var(--color-accent); font-weight: 600; letter-spacing: 1px; text-transform: uppercase; margin-bottom: 20px; }
.footer-links { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-links a { font-size: 14px; color: rgba(255,255,255,0.65); transition: all 0.2s; }
.footer-links a:hover { color: #fff; padding-left: 4px; }
.footer-contact-list { list-style: none; display: flex; flex-direction: column; gap: 12px; }
.footer-contact-list li { display: flex; align-items: flex-start; gap: 12px; font-size: 14px; color: rgba(255,255,255,0.65); }
.footer-contact-list i { color: var(--color-accent); margin-top: 3px; font-size: 13px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 24px 0; text-align: center;
  font-size: 13px; color: rgba(255,255,255,0.4);
}
.footer-bottom a { color: rgba(255,255,255,0.6); }

/* ===== 响应式 ===== */
@media (max-width: 991px) {
  .main-nav { display: none; }
  .mobile-toggle { display: flex; }
  .search-box input { width: 150px; }
  .hero-inner { grid-template-columns: 1fr 1fr; gap: 32px; }
  .hero-title { font-size: 40px; }
  .hero-media .hero-img-wrap img { height: 400px; }
  .services-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .news-layout { grid-template-columns: 1fr; }
  .adv-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .faq-layout { grid-template-columns: 240px 1fr; gap: 32px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
}
@media (max-width: 767px) {
  .section { padding: 64px 0; }
  .header-inner { height: 66px; }
  .search-box { display: none; }
  .header-actions .btn { display: none; }
  .hero { padding-top: 48px; }
  .hero-inner { grid-template-columns: 1fr; gap: 32px; }
  .hero-content { padding-right: 0; }
  .hero-title { font-size: 34px; }
  .hero-subtitle { font-size: 16px; }
  .hero-media .hero-img-wrap img { height: 320px; }
  .trust-grid { grid-template-columns: 1fr 1fr; }
  .trust-item { padding: 24px 16px; border-bottom: 1px solid var(--color-border); }
  .trust-item:nth-child(2) { border-right: none; }
  .services-grid { grid-template-columns: 1fr; gap: 20px; }
  .section-title { font-size: 26px; }
  .news-featured-media { height: 200px; }
  .news-layout { gap: 24px; }
  .news-item { flex-direction: row; overflow: hidden; }
  .news-item-thumb { width: 80px; height: 68px; }
  .adv-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
  .faq-layout { grid-template-columns: 1fr; }
  .faq-left { position: static; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { text-align: left; }
  .cta-title { font-size: 26px; }
}
@media (max-width: 480px) {
  .container { padding: 0 20px; }
  .trust-grid { grid-template-columns: 1fr; }
  .trust-item { border-right: none; border-bottom: 1px solid var(--color-border); }
  .trust-item:last-child { border-bottom: none; }
  .hero-actions .btn { width: 100%; }
  .section-head { flex-direction: column; align-items: flex-start; }
  .t-card { padding: 24px 20px; }
}

/* roulang page: article */
/* ===== 设计变量 ===== */
:root {
  --color-primary: #0E6B5C;
  --color-primary-hover: #0A5448;
  --color-primary-soft: #E3F0ED;
  --color-accent: #C6A15B;
  --color-bg: #FAF9F7;
  --color-surface: #FFFFFF;
  --color-text: #1F2A28;
  --color-text-secondary: #5C6B67;
  --color-border: #E6E1D8;
  --radius-card: 12px;
  --radius-btn: 999px;
  --radius-tag: 6px;
  --shadow-card: 0 4px 20px rgba(14, 107, 92, 0.06);
  --shadow-card-hover: 0 8px 30px rgba(14, 107, 92, 0.12);
  --shadow-btn: 0 4px 14px rgba(14, 107, 92, 0.25);
  --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "SimSun", serif;
  --font-sans: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-num: "Inter", "DIN Alternate", "Arial", sans-serif;
}

/* ===== Reset & Base ===== */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}
body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-bg);
  overflow-x: hidden;
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.25s ease-out;
}
a:hover {
  color: var(--color-primary-hover);
}
ul, ol {
  list-style-position: inside;
}
button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
}
button {
  cursor: pointer;
  border: none;
  background: none;
}
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* ===== 容器 ===== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
.container-narrow {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== 阅读进度条 ===== */
.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0%;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  z-index: 1002;
  border-radius: 0 2px 2px 0;
  transition: width 0.1s ease-out;
}

/* ===== 导航 ===== */
.site-header {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.04);
  position: sticky;
  top: 0;
  z-index: 1000;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 72px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.logo-icon {
  width: 42px;
  height: 42px;
  background: var(--color-primary);
  color: #fff;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: 1px;
  box-shadow: 0 2px 8px rgba(14, 107, 92, 0.3);
}
.logo-wrap {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}
.logo-text {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: 1px;
}
.logo-domain {
  font-size: 11px;
  color: var(--color-text-secondary);
  letter-spacing: 0.5px;
  font-family: var(--font-num);
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 36px;
}
.main-nav a {
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text);
  padding: 8px 4px;
  border-radius: 8px;
  position: relative;
  transition: color 0.25s ease-out, background 0.25s ease-out;
}
.main-nav a:hover {
  color: var(--color-primary);
  background: var(--color-primary-soft);
}
.main-nav a.active {
  color: var(--color-primary);
  font-weight: 700;
}
.main-nav a.active::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 2px;
  background: var(--color-accent);
  border-radius: 2px;
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-shrink: 0;
}
.search-box {
  display: flex;
  align-items: center;
  background: #F5F4F2;
  border: 1px solid transparent;
  border-radius: var(--radius-btn);
  padding: 8px 16px;
  gap: 8px;
  transition: border-color 0.25s ease-out, background 0.25s ease-out;
}
.search-box:focus-within {
  border-color: var(--color-primary);
  background: #fff;
}
.search-box i {
  color: var(--color-text-secondary);
  font-size: 14px;
}
.search-box input {
  border: none;
  background: transparent;
  outline: none;
  width: 160px;
  font-size: 14px;
  color: var(--color-text);
}
.search-box input::placeholder {
  color: #9AA5A0;
}
.search-box input:focus {
  border: none;
  outline: none;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 600;
  padding: 12px 24px;
  transition: all 0.25s ease-out;
  cursor: pointer;
  text-decoration: none;
  border: 1.5px solid transparent;
  line-height: 1.4;
}
.btn-primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: var(--shadow-btn);
}
.btn-primary:hover {
  background: var(--color-primary-hover);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(14, 107, 92, 0.35);
}
.btn-primary:active {
  transform: scale(0.98);
}
.btn-outline {
  background: var(--color-surface);
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn-outline:hover {
  background: var(--color-primary);
  color: #fff;
  transform: translateY(-2px);
}
.btn-accent {
  background: transparent;
  color: var(--color-accent);
  border-color: var(--color-accent);
}
.btn-accent:hover {
  background: rgba(198, 161, 91, 0.12);
  color: #A3853F;
  transform: translateY(-2px);
}
.btn-white {
  background: #fff;
  color: var(--color-primary);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.1);
}
.btn-white:hover {
  background: var(--color-accent);
  color: #fff;
  transform: translateY(-2px);
}
.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 8px;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--color-text);
  background: var(--color-primary-soft);
  transition: background 0.25s ease-out;
}
.nav-toggle:hover {
  background: var(--color-border);
}

/* ===== 文章头部 ===== */
.article-hero {
  background: linear-gradient(180deg, #F0F5F4 0%, var(--color-bg) 100%);
  border-bottom: 1px solid var(--color-border);
  padding: 64px 0 48px;
}
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  font-size: 13px;
  color: var(--color-text-secondary);
  margin-bottom: 24px;
}
.breadcrumb a {
  color: var(--color-text-secondary);
}
.breadcrumb a:hover {
  color: var(--color-primary);
}
.breadcrumb .sep {
  color: var(--color-border);
  margin: 0 4px;
}
.breadcrumb .current {
  color: var(--color-primary);
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 260px;
}
.article-meta-top {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 16px;
}
.tag {
  display: inline-flex;
  align-items: center;
  background: rgba(198, 161, 91, 0.15);
  color: #A3853F;
  font-size: 13px;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: var(--radius-tag);
  letter-spacing: 0.5px;
}
.hot-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--color-primary-soft);
  color: var(--color-primary);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: var(--radius-tag);
}
.hot-badge i {
  font-size: 13px;
}
.article-title {
  font-family: var(--font-serif);
  font-size: 40px;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.3;
  margin-bottom: 16px;
  max-width: 900px;
}
.article-excerpt {
  font-size: 16px;
  color: var(--color-text-secondary);
  line-height: 1.8;
  max-width: 760px;
  margin-bottom: 24px;
}
.article-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 24px;
  font-size: 14px;
  color: var(--color-text-secondary);
}
.article-meta-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.article-meta-item i {
  color: var(--color-accent);
  font-size: 15px;
}
.article-meta-item .author-name {
  color: var(--color-text);
  font-weight: 600;
}

/* ===== 正文区 ===== */
.article-body-wrap {
  background: var(--color-surface);
  padding: 56px 0 64px;
}
.article-content {
  font-size: 16px;
  line-height: 1.9;
  color: var(--color-text);
  counter-reset: chapter;
}
.article-content p {
  margin-bottom: 1.5em;
}
.article-content h2 {
  font-family: var(--font-serif);
  font-size: 24px;
  font-weight: 700;
  color: var(--color-text);
  margin-top: 48px;
  margin-bottom: 20px;
  padding-top: 12px;
  border-top: 1px solid var(--color-border);
  counter-reset: subchapter;
}
.article-content h2::before {
  counter-increment: chapter;
  content: "0" counter(chapter) " — ";
  color: var(--color-accent);
  font-family: var(--font-num);
  font-size: 18px;
  font-weight: 700;
}
.article-content h3 {
  font-family: var(--font-serif);
  font-size: 19px;
  font-weight: 700;
  color: var(--color-text);
  margin-top: 32px;
  margin-bottom: 14px;
}
.article-content h3::before {
  counter-increment: subchapter;
  content: "0" counter(chapter) "." counter(subchapter) " ";
  color: var(--color-accent);
  font-family: var(--font-num);
  font-size: 15px;
}
.article-content ul,
.article-content ol {
  margin: 0 0 1.5em 1.2em;
  padding-left: 0.5em;
}
.article-content li {
  margin-bottom: 8px;
}
.article-content a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.article-content a:hover {
  color: var(--color-accent);
}
.article-content img {
  border-radius: 8px;
  margin: 28px 0;
  box-shadow: var(--shadow-card);
}
.article-content blockquote {
  border-left: 3px solid var(--color-accent);
  background: var(--color-primary-soft);
  padding: 18px 24px;
  font-style: italic;
  color: var(--color-text-secondary);
  margin: 28px 0;
  border-radius: 0 8px 8px 0;
}
.article-content blockquote p {
  margin-bottom: 0;
}
.article-content code {
  background: #292D35;
  color: #E8E8E8;
  padding: 3px 10px;
  border-radius: 6px;
  font-size: 14px;
  font-family: "Fira Code", "Consolas", monospace;
}
.article-content pre {
  background: #292D35;
  color: #E8E8E8;
  padding: 20px 24px;
  border-radius: 12px;
  overflow-x: auto;
  margin: 28px 0;
  line-height: 1.6;
}
.article-content pre code {
  background: transparent;
  padding: 0;
  color: inherit;
}
.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 28px 0;
  font-size: 14px;
}
.article-content th,
.article-content td {
  border: 1px solid var(--color-border);
  padding: 12px 16px;
  text-align: left;
}
.article-content th {
  background: var(--color-primary-soft);
  font-weight: 600;
}
.article-content hr {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: 40px 0;
}

/* 未找到 */
.not-found {
  text-align: center;
  padding: 80px 24px;
}
.not-found-icon {
  font-family: var(--font-num);
  font-size: 88px;
  font-weight: 700;
  color: var(--color-primary-soft);
  line-height: 1;
  margin-bottom: 16px;
}
.not-found h2 {
  font-family: var(--font-serif);
  font-size: 28px;
  color: var(--color-text);
  margin-bottom: 12px;
}
.not-found p {
  color: var(--color-text-secondary);
  margin-bottom: 32px;
}

/* ===== 文章底部 ===== */
.article-bottom {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: 40px 0;
}
.article-bottom-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
}
.article-tags {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}
.article-tags .tag-label {
  font-size: 13px;
  color: var(--color-text-secondary);
  font-weight: 600;
}
.article-tags .tag-item {
  display: inline-flex;
  align-items: center;
  font-size: 13px;
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-btn);
  padding: 4px 16px;
  transition: all 0.2s ease-out;
}
.article-tags .tag-item:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-soft);
}
.article-share {
  display: flex;
  align-items: center;
  gap: 10px;
}
.article-share .share-label {
  font-size: 13px;
  color: var(--color-text-secondary);
  font-weight: 600;
}
.share-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-secondary);
  font-size: 15px;
  transition: all 0.2s ease-out;
}
.share-btn:hover {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
  transform: translateY(-2px);
}
.article-nav-links {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  margin-top: 32px;
  padding-top: 28px;
  border-top: 1px solid var(--color-border);
  flex-wrap: wrap;
}
.article-nav-links a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
}
.article-nav-links a:hover {
  color: var(--color-accent);
}
.article-nav-links a i {
  font-size: 13px;
}
.article-nav-links a.next {
  margin-left: auto;
}

/* ===== 相关推荐 ===== */
.related-posts {
  background: var(--color-bg);
  padding: 72px 0;
}
.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 40px;
}
.section-title {
  font-family: var(--font-serif);
  font-size: 28px;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.3;
}
.section-title span {
  color: var(--color-accent);
}
.section-subtitle {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-top: 6px;
}
.section-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}
.section-link:hover {
  color: var(--color-accent);
}
.section-link i {
  transition: transform 0.25s ease-out;
}
.section-link:hover i {
  transform: translateX(4px);
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.related-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: box-shadow 0.25s ease-out, transform 0.25s ease-out;
}
.related-card:hover {
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-4px);
}
.related-card-link {
  display: block;
  text-decoration: none;
  color: inherit;
}
.related-card-img {
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  position: relative;
}
.related-card-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(14, 107, 92, 0.12), transparent 60%);
}
.related-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease-out;
}
.related-card:hover .related-card-img img {
  transform: scale(1.04);
}
.related-card-body {
  padding: 20px 24px 24px;
}
.related-card-date {
  font-size: 12px;
  color: var(--color-text-secondary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 8px;
}
.related-card-date i {
  color: var(--color-accent);
}
.related-card-body h3 {
  font-family: var(--font-serif);
  font-size: 17px;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.4;
  margin-bottom: 12px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.related-card-more {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.related-card-more i {
  transition: transform 0.25s ease-out;
}
.related-card:hover .related-card-more i {
  transform: translateX(4px);
}

/* ===== CTA 区 ===== */
.cta-section {
  background: var(--color-primary);
  position: relative;
  overflow: hidden;
  padding: 80px 0;
}
.cta-section::before {
  content: '';
  position: absolute;
  top: -80px;
  right: -60px;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.12);
}
.cta-section::after {
  content: '';
  position: absolute;
  bottom: -120px;
  left: 20%;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.06);
}
.cta-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
}
.cta-title {
  font-family: var(--font-serif);
  font-size: 28px;
  font-weight: 700;
  color: #fff;
  line-height: 1.4;
  margin-bottom: 28px;
}
.cta-title span {
  color: var(--color-accent);
}
.cta-content .btn {
  margin: 0 8px;
}

/* ===== 页脚 ===== */
.site-footer {
  background: #1F2A28;
  color: rgba(255, 255, 255, 0.7);
  padding: 64px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.footer-brand .logo {
  margin-bottom: 16px;
}
.footer-brand .logo-icon {
  background: rgba(255, 255, 255, 0.12);
  color: var(--color-accent);
  box-shadow: none;
}
.footer-brand .logo-text {
  color: #fff;
}
.footer-brand .logo-domain {
  color: rgba(255, 255, 255, 0.4);
}
.footer-desc {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 20px;
  max-width: 320px;
}
.footer-social {
  display: flex;
  gap: 12px;
}
.footer-social a {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.2);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.7);
  font-size: 15px;
  transition: all 0.25s ease-out;
}
.footer-social a:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #1F2A28;
}
.footer-title {
  font-size: 14px;
  font-weight: 700;
  color: #fff;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 10px;
}
.footer-title::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 28px;
  height: 2px;
  background: var(--color-accent);
  border-radius: 2px;
}
.footer-links {
  list-style: none;
}
.footer-links li {
  margin-bottom: 10px;
}
.footer-links a {
  color: rgba(255, 255, 255, 0.6);
  font-size: 14px;
  transition: all 0.25s ease-out;
}
.footer-links a:hover {
  color: #fff;
  padding-left: 4px;
}
.footer-contact-list {
  list-style: none;
}
.footer-contact-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 14px;
}
.footer-contact-list i {
  color: var(--color-accent);
  width: 18px;
  text-align: center;
}
.footer-bottom {
  padding: 20px 0;
  text-align: center;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.35);
}
.footer-bottom p {
  margin-bottom: 0;
}

/* ===== 响应式 ===== */
@media (max-width: 991px) {
  .main-nav {
    gap: 20px;
  }
  .search-box input {
    width: 110px;
  }
  .related-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 767px) {
  .header-inner {
    height: 64px;
  }
  .nav-toggle {
    display: flex;
  }
  .main-nav {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--color-surface);
    flex-direction: column;
    align-items: stretch;
    padding: 16px 24px 24px;
    gap: 8px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
    border-bottom: 1px solid var(--color-border);
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s ease-out;
  }
  .main-nav.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .main-nav a {
    font-size: 16px;
    padding: 14px 16px;
    border-radius: 10px;
  }
  .main-nav a.active::after {
    display: none;
  }
  .main-nav a.active {
    background: var(--color-primary-soft);
  }
  .search-box {
    display: none;
  }
  .header-actions .btn {
    padding: 10px 18px;
    font-size: 14px;
  }
  .article-title {
    font-size: 28px;
  }
  .article-hero {
    padding: 40px 0 32px;
  }
  .article-excerpt {
    font-size: 15px;
  }
  .article-meta {
    gap: 16px;
  }
  .article-body-wrap {
    padding: 40px 0;
  }
  .article-content {
    font-size: 15px;
  }
  .article-content h2 {
    font-size: 20px;
  }
  .article-bottom-row {
    flex-direction: column;
    align-items: flex-start;
  }
  .related-grid {
    grid-template-columns: 1fr;
  }
  .section-head {
    flex-direction: column;
    align-items: flex-start;
  }
  .cta-section {
    padding: 56px 0;
  }
  .cta-title {
    font-size: 22px;
  }
  .cta-content .btn {
    margin: 6px;
    width: calc(100% - 12px);
    max-width: 320px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
  .footer-brand {
    grid-column: 1 / -1;
  }
}
@media (max-width: 520px) {
  .container {
    padding: 0 16px;
  }
  .container-narrow {
    padding: 0 16px;
  }
  .article-title {
    font-size: 24px;
  }
  .article-meta {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
  .article-content blockquote {
    padding: 14px 16px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .breadcrumb .current {
    max-width: 160px;
  }
}

/* roulang page: category1 */
/* ========== 设计变量 ========== */
:root {
  --color-primary: #0E6B5C;
  --color-primary-hover: #0A5448;
  --color-primary-soft: #E3F0ED;
  --color-accent: #C6A15B;
  --color-accent-soft: #F5EEDD;
  --color-bg: #FAF9F7;
  --color-surface: #FFFFFF;
  --color-text: #1F2A28;
  --color-text-secondary: #5C6B67;
  --color-border: #E6E1D8;
  --radius-card: 12px;
  --radius-btn: 999px;
  --radius-tag: 6px;
  --shadow-card: 0 4px 20px rgba(14, 107, 92, 0.06);
  --shadow-card-hover: 0 8px 30px rgba(14, 107, 92, 0.12);
  --shadow-btn: 0 4px 14px rgba(14, 107, 92, 0.25);
  --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "SimSun", serif;
  --font-sans: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Helvetica Neue", "Microsoft YaHei", sans-serif;
  --font-en: "Inter", "Helvetica Neue", Arial, sans-serif;
  --transition: all 0.25s ease-out;
  --container-width: 1200px;
}

/* ========== Reset / Base ========== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  font-size: 15px;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--color-primary-hover); }
button { font-family: inherit; cursor: pointer; }
ul, ol { list-style: none; }

/* ========== Container ========== */
.container { max-width: var(--container-width); margin: 0 auto; padding: 0 32px; }

/* ========== Header ========== */
.site-header {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.04);
  position: sticky;
  top: 0;
  z-index: 100;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  gap: 32px;
}
.logo { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.logo-icon {
  width: 40px;
  height: 40px;
  background: var(--color-primary);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.02em;
  line-height: 1;
}
.logo-wrap { display: flex; flex-direction: column; line-height: 1.2; }
.logo-text { font-family: var(--font-serif); font-size: 18px; font-weight: 700; color: var(--color-text); white-space: nowrap; }
.logo-domain { font-family: var(--font-en); font-size: 11px; color: var(--color-text-secondary); letter-spacing: 0.05em; }
.main-nav { display: flex; align-items: center; gap: 36px; margin-left: auto; }
.main-nav a {
  font-size: 15px;
  color: var(--color-text);
  padding: 6px 12px;
  border-radius: 8px;
  font-weight: 500;
  position: relative;
  white-space: nowrap;
  transition: color 0.2s ease, background 0.2s ease;
}
.main-nav a:hover { color: var(--color-primary); background: var(--color-primary-soft); }
.main-nav a.active { color: var(--color-primary); font-weight: 700; }
.main-nav a.active::after {
  content: '';
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 0;
  height: 2px;
  background: var(--color-accent);
  border-radius: 2px;
}
.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  font-size: 18px;
  color: var(--color-text);
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: var(--transition);
}
.nav-toggle:hover { border-color: var(--color-primary); color: var(--color-primary); }

/* ========== 分类页 Hero ========== */
.category-hero {
  background: var(--color-primary-soft);
  border-bottom: 1px solid var(--color-border);
  position: relative;
  overflow: hidden;
}
.category-hero::before {
  content: '';
  position: absolute;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: rgba(14, 107, 92, 0.06);
  top: -140px;
  right: 8%;
  pointer-events: none;
}
.category-hero .container { position: relative; padding-top: 68px; padding-bottom: 60px; }
.breadcrumb { font-size: 13px; color: var(--color-text-secondary); margin-bottom: 18px; }
.breadcrumb a { color: var(--color-text-secondary); }
.breadcrumb a:hover { color: var(--color-primary); }
.breadcrumb .sep { margin: 0 8px; color: var(--color-border); }
.category-hero h1 {
  font-family: var(--font-serif);
  font-size: 40px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 18px;
  letter-spacing: 0.02em;
  line-height: 1.3;
}
.category-desc {
  font-size: 15px;
  color: var(--color-text-secondary);
  max-width: 780px;
  line-height: 1.85;
}
.hero-ctas { margin-top: 32px; display: flex; gap: 16px; flex-wrap: wrap; }

/* ========== 按钮 ========== */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--color-primary);
  color: #fff;
  border: 1px solid var(--color-primary);
  padding: 13px 30px;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 600;
  box-shadow: var(--shadow-btn);
  transition: var(--transition);
}
.btn-primary:hover {
  background: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 18px rgba(14, 107, 92, 0.3);
}
.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
  padding: 13px 30px;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 600;
  transition: var(--transition);
}
.btn-outline:hover {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
  transform: translateY(-2px);
}
.btn-gold {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: var(--color-accent);
  border: 1px solid var(--color-accent);
  padding: 12px 28px;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 600;
  transition: var(--transition);
}
.btn-gold:hover {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
  transform: translateY(-2px);
}
.btn-white {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #fff;
  color: var(--color-primary);
  border: 1px solid #fff;
  padding: 14px 38px;
  border-radius: var(--radius-btn);
  font-size: 16px;
  font-weight: 700;
  transition: var(--transition);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.08);
}
.btn-white:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #fff;
  transform: translateY(-2px);
}
.btn:active, .btn-primary:active, .btn-outline:active, .btn-gold:active, .btn-white:active { transform: scale(0.98); }

/* ========== Section 通用 ========== */
.section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 48px;
  gap: 32px;
  flex-wrap: wrap;
}
.section-title { font-family: var(--font-serif); font-size: 30px; font-weight: 700; color: var(--color-text); line-height: 1.3; }
.section-subtitle { font-size: 14px; color: var(--color-text-secondary); margin-top: 10px; max-width: 680px; line-height: 1.7; }
.section-link { font-size: 14px; font-weight: 600; color: var(--color-primary); display: inline-flex; align-items: center; gap: 6px; white-space: nowrap; }
.section-link i { transition: transform 0.25s ease; }
.section-link:hover i { transform: translateX(4px); }

/* ========== 服务卖点 ========== */
.service-cards { padding: 96px 0; background: var(--color-bg); }
.service-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.service-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 32px 28px;
  position: relative;
  transition: var(--transition);
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--color-accent);
  opacity: 0;
  transition: opacity 0.3s ease;
}
.service-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card-hover); }
.service-card:hover::before { opacity: 1; }
.service-card-icon {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  background: var(--color-primary-soft);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  margin-bottom: 20px;
}
.service-card h3 { font-family: var(--font-serif); font-size: 18px; font-weight: 700; margin-bottom: 12px; color: var(--color-text); }
.service-card p { font-size: 14px; color: var(--color-text-secondary); line-height: 1.75; }

/* ========== 适用场景 ========== */
.scenario-section { padding: 96px 0; background: var(--color-surface); }
.scenario-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.scenario-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: var(--transition);
}
.scenario-card:hover { box-shadow: var(--shadow-card-hover); transform: translateY(-4px); }
.scenario-card-img { overflow: hidden; }
.scenario-card-img img { width: 100%; height: 200px; object-fit: cover; transition: transform 0.4s ease; }
.scenario-card:hover .scenario-card-img img { transform: scale(1.03); }
.scenario-card-body { padding: 24px 28px 32px; }
.tag {
  display: inline-block;
  background: var(--color-accent-soft);
  color: #9A7D3E;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: var(--radius-tag);
  margin-bottom: 12px;
  letter-spacing: 0.02em;
}
.scenario-card h3 { font-family: var(--font-serif); font-size: 20px; font-weight: 700; margin-bottom: 12px; color: var(--color-text); }
.scenario-card p { font-size: 14px; color: var(--color-text-secondary); line-height: 1.75; }

/* ========== 服务流程 ========== */
.process-section { padding: 96px 0; background: var(--color-bg); }
.process-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
.process-step {
  position: relative;
  padding: 36px 30px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  transition: var(--transition);
}
.process-step:hover { box-shadow: var(--shadow-card-hover); }
.process-step .step-num {
  font-family: var(--font-serif);
  font-size: 44px;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 16px;
  display: block;
  opacity: 0.85;
}
.process-step h3 { font-size: 17px; font-weight: 700; margin-bottom: 10px; color: var(--color-text); }
.process-step p { font-size: 14px; color: var(--color-text-secondary); line-height: 1.7; }
.process-step::after {
  content: '';
  position: absolute;
  right: -20px;
  top: 50%;
  width: 12px;
  height: 12px;
  border-top: 2px solid var(--color-accent);
  border-right: 2px solid var(--color-accent);
  transform: translateY(-50%) rotate(45deg);
  z-index: 2;
}
.process-step:last-child::after { display: none; }

/* ========== 相关服务专题横条 ========== */
.related-cta-section { padding: 96px 0; background: var(--color-surface); }
.related-cta {
  background: var(--color-primary-soft);
  border-radius: var(--radius-card);
  padding: 40px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}
.related-cta-text h3 { font-family: var(--font-serif); font-size: 24px; font-weight: 700; color: var(--color-text); }
.related-cta-text p { color: var(--color-text-secondary); margin-top: 10px; font-size: 14px; line-height: 1.7; }

/* ========== FAQ ========== */
.faq-section { padding: 96px 0; background: #F0F5F4; }
.faq-wrap { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: 64px; align-items: start; }
.faq-side .section-title { font-size: 28px; }
.faq-side p { color: var(--color-text-secondary); margin-top: 16px; font-size: 14px; line-height: 1.75; }
.faq-list { border-top: 1px solid var(--color-border); }
.faq-item { border-bottom: 1px solid var(--color-border); transition: background 0.3s ease, padding 0.3s ease; }
.faq-item.open {
  background: var(--color-surface);
  padding: 0 24px;
  border-radius: 8px;
  border-bottom: none;
  box-shadow: 0 2px 12px rgba(14, 107, 92, 0.05);
  margin-bottom: 1px;
}
.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 20px 0;
  background: none;
  border: none;
  font-size: 16px;
  font-weight: 700;
  color: var(--color-text);
  text-align: left;
  transition: color 0.25s ease;
  line-height: 1.5;
}
.faq-icon { position: relative; width: 16px; height: 16px; flex-shrink: 0; }
.faq-icon::before, .faq-icon::after {
  content: '';
  position: absolute;
  background: var(--color-accent);
  border-radius: 1px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}
.faq-icon::before { width: 16px; height: 2px; top: 7px; left: 0; }
.faq-icon::after { height: 16px; width: 2px; top: 0; left: 7px; }
.faq-item.open .faq-icon::after { transform: scaleY(0); }
.faq-item.open .faq-question { color: var(--color-primary); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.35s ease; }
.faq-answer-inner { padding: 0 0 20px; font-size: 14px; color: var(--color-text-secondary); line-height: 1.8; }
.faq-item.open .faq-answer { max-height: 400px; }
.faq-note { margin-top: 28px; }

/* ========== CTA ========== */
.cta-section {
  background: var(--color-primary);
  padding: 88px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  border: 46px solid rgba(255, 255, 255, 0.06);
  top: -110px;
  right: -70px;
  pointer-events: none;
}
.cta-section::after {
  content: '';
  position: absolute;
  width: 160px;
  height: 160px;
  border-radius: 50%;
  border: 30px solid rgba(255, 255, 255, 0.04);
  bottom: -60px;
  left: -40px;
  pointer-events: none;
}
.cta-section .container { position: relative; z-index: 2; }
.cta-section h2 {
  font-family: var(--font-serif);
  font-size: 30px;
  color: #fff;
  margin-bottom: 16px;
  font-weight: 700;
  line-height: 1.4;
}
.cta-section p {
  color: rgba(255, 255, 255, 0.88);
  font-size: 15px;
  max-width: 660px;
  margin: 0 auto 36px;
  line-height: 1.75;
}

/* ========== Footer ========== */
.site-footer { background: #1F2A28; color: rgba(255, 255, 255, 0.75); padding: 72px 0 32px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.2fr; gap: 48px; margin-bottom: 48px; }
.footer-brand .logo { margin-bottom: 22px; }
.footer-brand .logo-icon { background: rgba(255, 255, 255, 0.14); color: #fff; }
.footer-brand .logo-text { color: #fff; }
.footer-brand .logo-domain { color: rgba(255, 255, 255, 0.5); }
.footer-desc {
  font-size: 14px;
  line-height: 1.8;
  margin-bottom: 24px;
  color: rgba(255, 255, 255, 0.6);
  max-width: 320px;
}
.footer-social { display: flex; gap: 16px; }
.footer-social a {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.18);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.7);
  font-size: 15px;
  transition: var(--transition);
}
.footer-social a:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
  transform: translateY(-2px);
}
.site-footer h3.footer-title {
  font-size: 14px;
  color: var(--color-accent);
  letter-spacing: 0.08em;
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 20px;
}
.footer-links li { margin-bottom: 12px; }
.footer-links a { color: rgba(255, 255, 255, 0.6); font-size: 14px; transition: all 0.25s ease; }
.footer-links a:hover { color: #fff; padding-left: 4px; }
.footer-contact-list li { display: flex; align-items: flex-start; gap: 10px; margin-bottom: 14px; font-size: 14px; color: rgba(255, 255, 255, 0.6); line-height: 1.6; }
.footer-contact-list i { color: var(--color-accent); margin-top: 4px; width: 16px; text-align: center; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 24px;
  text-align: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
}

/* ========== 响应式 ========== */
@media (max-width: 992px) {
  .service-grid { grid-template-columns: repeat(2, 1fr); }
  .scenario-grid { grid-template-columns: repeat(2, 1fr); }
  .process-steps { grid-template-columns: repeat(2, 1fr); }
  .process-step::after { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .faq-wrap { grid-template-columns: 1fr; gap: 48px; }
  .category-hero h1 { font-size: 34px; }
}

@media (max-width: 768px) {
  .header-inner { height: 64px; gap: 16px; }
  .main-nav {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--color-surface);
    flex-direction: column;
    align-items: stretch;
    padding: 16px 24px 24px;
    gap: 6px;
    border-bottom: 1px solid var(--color-border);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.08);
    transform: translateY(-120%);
    transition: transform 0.35s ease;
    z-index: 99;
    margin-left: 0;
  }
  .main-nav a { padding: 12px 16px; font-size: 16px; border-radius: 10px; }
  .main-nav a.active { background: var(--color-primary-soft); }
  .main-nav a.active::after { display: none; }
  .site-header.nav-open .main-nav { transform: translateY(0); }
  .nav-toggle { display: flex; }
  .logo-text { font-size: 16px; }
  .category-hero .container { padding-top: 48px; padding-bottom: 44px; }
  .category-hero h1 { font-size: 30px; }
  .section-header { margin-bottom: 32px; }
  .section-title { font-size: 26px; }
  .related-cta { padding: 32px 28px; }
}

@media (max-width: 576px) {
  .container { padding: 0 20px; }
  .service-grid, .scenario-grid, .process-steps { grid-template-columns: 1fr; }
  .service-cards, .scenario-section, .process-section, .related-cta-section, .faq-section, .cta-section { padding: 56px 0; }
  .category-hero h1 { font-size: 26px; }
  .hero-ctas { flex-direction: column; align-items: stretch; }
  .hero-ctas .btn-primary, .hero-ctas .btn-outline { justify-content: center; }
  .section-header { flex-direction: column; align-items: flex-start; }
  .footer-grid { grid-template-columns: 1fr; gap: 40px; }
  .site-footer { padding: 56px 0 28px; }
  .cta-section h2 { font-size: 24px; }
  .cta-section { padding: 64px 0; }
  .btn-white { width: 100%; justify-content: center; }
  .related-cta { flex-direction: column; align-items: flex-start; }
  .faq-item.open { padding: 0 16px; }
  .process-step { padding: 28px 24px; }
  .scenario-card-img img { height: 180px; }
}