/* ========================================
   站群通用静态网站模板 - 主样式表
   技术栈: Bootstrap 5 + 原生CSS
   适配: PC端 + 移动端响应式
   批量部署: 颜色变量集中管理，一键换肤
   ======================================== */

/* ===== 颜色变量 (站群换肤只需修改此处) ===== */
:root {
  --primary: #2563eb;
  --primary-dark: #1e40af;
  --primary-light: #3b82f6;
  --primary-gradient: linear-gradient(135deg, #2563eb 0%, #1e40af 100%);
  --accent: #f59e0b;
  --accent-light: #fbbf24;
  --success: #10b981;
  --dark: #1e293b;
  --gray-900: #0f172a;
  --gray-800: #1e293b;
  --gray-700: #334155;
  --gray-600: #475569;
  --gray-500: #64748b;
  --gray-400: #94a3b8;
  --gray-300: #cbd5e1;
  --gray-200: #e2e8f0;
  --gray-100: #f1f5f9;
  --gray-50: #f8fafc;
  --white: #ffffff;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.08), 0 2px 4px -1px rgba(0,0,0,0.04);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -2px rgba(0,0,0,0.04);
  --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 10px 10px -5px rgba(0,0,0,0.04);
  --radius: 12px;
  --radius-lg: 20px;
  --transition: all 0.3s ease;
}

/* ===== 基础重置 ===== */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--gray-700);
  background: var(--white);
  line-height: 1.7;
  overflow-x: hidden;
}
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary-dark); }
img { max-width: 100%; height: auto; }
h1, h2, h3, h4, h5, h6 { font-weight: 700; color: var(--gray-900); }

/* ===== 通用容器 ===== */
.section-padding { padding: 70px 0; }
.section-padding-sm { padding: 45px 0; }
.bg-light-custom { background: var(--gray-50); }
.bg-dark-custom { background: var(--gray-900); color: var(--gray-300); }
.bg-gradient-primary { background: var(--primary-gradient); color: var(--white); }

/* ===== 顶部抖音分站导航条 ===== */
.top-bar {
  background: var(--gray-900);
  color: var(--gray-400);
  font-size: 0.82rem;
  padding: 6px 0;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.top-bar a { color: var(--gray-400); transition: var(--transition); }
.top-bar a:hover { color: var(--white); }
.top-bar .douyin-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: linear-gradient(135deg, #000000 0%, #1a1a1a 100%);
  color: #fff;
  padding: 2px 12px;
  border-radius: 20px;
  font-size: 0.76rem;
  font-weight: 600;
  transition: var(--transition);
}
.top-bar .douyin-badge:hover {
  background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
  color: #ff6b6b;
  transform: translateY(-1px);
}
.top-bar .douyin-badge svg { width: 14px; height: 14px; }
.top-bar .top-bar-contact { color: var(--gray-300); }
.top-bar .top-bar-contact strong { color: var(--accent-light); font-size: 0.9rem; }

/* ===== 主导航栏 ===== */
.main-navbar {
  background: var(--white);
  box-shadow: var(--shadow-md);
  padding: 10px 0;
  position: sticky;
  top: 0;
  z-index: 1020;
  transition: var(--transition);
}
.main-navbar.scrolled { padding: 6px 0; box-shadow: var(--shadow-lg); }
.navbar-brand { display: flex; align-items: center; gap: 10px; }
.navbar-brand .logo-text { font-size: 1.35rem; font-weight: 800; color: var(--gray-900); line-height: 1.2; }
.navbar-brand .logo-sub { font-size: 0.68rem; color: var(--gray-500); font-weight: 500; letter-spacing: 1px; }
.main-navbar .nav-link {
  font-weight: 600;
  
  padding: 8px 16px !important;
  border-radius: 8px;
  font-size: 0.95rem;
  position: relative;
  transition: var(--transition);
}
.main-navbar .nav-link:hover { color: var(--primary) !important; background: var(--gray-50); }
.main-navbar .nav-link.active { color: var(--primary) !important; }
.main-navbar .nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%);
  width: 24px;
  height: 3px;
  background: var(--primary);
  border-radius: 3px;
}
.nav-phone-btn {
  background: var(--primary-gradient);
  color: var(--white) !important;
  padding: 8px 20px !important;
  border-radius: 50px;
  font-weight: 700;
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition);
}
.nav-phone-btn:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); color: var(--white) !important; }

/* ===== Hero横幅区域 ===== */
.hero-section {
  position: relative;
  min-height: 520px;
  display: flex;
  align-items: center;
  background: var(--primary-gradient);
  overflow: hidden;
  padding: 60px 0;
}
.hero-section::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='60' height='60' viewBox='0 0 60 60'%3E%3Cpath fill='rgba(255,255,255,0.05)' d='M30 0l30 30-30 30L0 30z'/%3E%3C/svg%3E");
  pointer-events: none;
}
.hero-section::after {
  content: '';
  position: absolute;
  bottom: -50px;
  right: -50px;
  width: 350px;
  height: 350px;
  background: rgba(255,255,255,0.05);
  border-radius: 50%;
}
.hero-content { position: relative; z-index: 2; }
.hero-content h1 { color: var(--white); font-size: 2.6rem; font-weight: 800; margin-bottom: 18px; line-height: 1.3; }
.hero-content .hero-subtitle { font-size: 1.15rem; color: rgba(255,255,255,0.9); margin-bottom: 28px; max-width: 580px; }
.hero-content .hero-keywords { color: rgba(255,255,255,0.75); font-size: 0.9rem; margin-bottom: 28px; }
.hero-btn-group { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-btn-primary {
  background: var(--white);
  color: var(--primary);
  padding: 12px 32px;
  border-radius: 50px;
  font-weight: 700;
  font-size: 1rem;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition);
  border: none;
}
.hero-btn-primary:hover { transform: translateY(-3px); box-shadow: var(--shadow-xl); color: var(--primary-dark); }
.hero-btn-outline {
  background: transparent;
  color: var(--white);
  padding: 12px 32px;
  border-radius: 50px;
  font-weight: 700;
  font-size: 1rem;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition);
  border: 2px solid rgba(255,255,255,0.5);
}
.hero-btn-outline:hover { border-color: var(--white); background: rgba(255,255,255,0.1); color: var(--white); }

/* Hero右侧装饰图 */
.hero-image-wrap { position: relative; z-index: 2; text-align: center; }
.hero-image-wrap .hero-card-float {
  background: rgba(255,255,255,1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--radius);
  padding: 20px;
  display: inline-block;
}

/* ===== 统计数据区 ===== */
.stats-section { background: var(--gray-50); padding: 50px 0; border-bottom: 1px solid var(--gray-200); }
.stat-item { text-align: center; padding: 16px; }
.stat-item .stat-number { font-size: 2.6rem; font-weight: 800; color: var(--primary); line-height: 1; display: block; }
.stat-item .stat-number .stat-suffix { font-size: 1.4rem; }
.stat-item .stat-label { color: var(--gray-600); font-size: 0.92rem; margin-top: 8px; font-weight: 500; }

/* ===== 区块标题 ===== */
.section-title { text-align: center; margin-bottom: 50px; }
.section-title h2 { font-size: 2rem; font-weight: 800; color: var(--gray-900); margin-bottom: 12px; }
.section-title .section-subtitle { color: var(--gray-500); font-size: 1rem; max-width: 620px; margin: 0 auto; }
.section-title .title-line { width: 60px; height: 4px; background: var(--primary-gradient); margin: 16px auto 0; border-radius: 4px; }
.section-title.text-left { text-align: left; }
.section-title.text-left .title-line { margin: 16px 0 0; }

/* ===== 产品/服务卡片 ===== */
.service-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-100);
  transition: var(--transition);
  height: 100%;
}
.service-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-xl); border-color: var(--primary-light); }
.service-card .service-icon {
  width: 64px; height: 64px;
  border-radius: 16px;
  background: var(--primary-gradient);
  color: var(--white);
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 20px;
  font-size: 1.8rem;
}
.service-card h3 { font-size: 1.15rem; margin-bottom: 10px; }
.service-card p { color: var(--gray-500); font-size: 0.9rem; margin: 0; }

/* ===== 优势/特色区 ===== */
.feature-section { background: var(--white); }
.feature-card {
  display: flex;
  gap: 16px;
  padding: 20px;
  border-radius: var(--radius);
  transition: var(--transition);
  height: 100%;
}
.feature-card:hover { background: var(--gray-50); }
.feature-card .feature-icon {
  flex-shrink: 0;
  width: 50px; height: 50px;
  border-radius: 12px;
  background: rgba(37,99,235,0.1);
  color: var(--primary);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem;
}
.feature-card .feature-body h4 { font-size: 1rem; margin-bottom: 6px; }
.feature-card .feature-body p { font-size: 0.88rem; color: var(--gray-500); margin: 0; }

/* ===== 案例展示 ===== */
.case-card {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-100);
  transition: var(--transition);
  background: var(--white);
  height: 100%;
}
.case-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-xl); }
.case-card .case-img-wrap { position: relative; overflow: hidden; aspect-ratio: 16/10; background: var(--gray-100); }
.case-card .case-img-wrap img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.case-card:hover .case-img-wrap img { transform: scale(1.08); }
.case-card .case-body { padding: 20px; }
.case-card .case-body h3 { font-size: 1.1rem; margin-bottom: 8px; }
.case-card .case-body p { font-size: 0.88rem; color: var(--gray-500); margin-bottom: 12px; }
.case-card .case-tag {
  display: inline-block;
  background: rgba(37,99,235,0.08);
  color: var(--primary);
  font-size: 0.78rem;
  padding: 3px 12px;
  border-radius: 50px;
  font-weight: 600;
}

/* ===== 新闻列表 ===== */
.news-card {
  display: flex;
  gap: 18px;
  padding: 20px;
  border-radius: var(--radius);
  background: var(--white);
  border: 1px solid var(--gray-100);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  height: 100%;
}
.news-card:hover { box-shadow: var(--shadow-lg); border-color: var(--primary-light); }
.news-card .news-date {
  flex-shrink: 0;
  text-align: center;
  background: var(--primary-gradient);
  color: var(--white);
  border-radius: var(--radius);
  padding: 12px 16px;
  min-width: 64px;
  height: fit-content;
}
.news-card .news-date .day { font-size: 1.5rem; font-weight: 800; line-height: 1; }
.news-card .news-date .month { font-size: 0.75rem; margin-top: 4px; }
.news-card .news-body h3 { font-size: 1.05rem; margin-bottom: 8px; line-height: 1.5; }
.news-card .news-body h3 a { color: var(--gray-900); }
.news-card .news-body h3 a:hover { color: var(--primary); }
.news-card .news-body .news-summary { font-size: 0.88rem; color: var(--gray-500); margin-bottom: 10px; }
.news-card .news-body .news-meta { font-size: 0.8rem; color: var(--gray-400); }

/* 列表页简化版新闻卡片 */
.news-list-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--gray-100);
  transition: var(--transition);
}
.news-list-item:hover { background: var(--gray-50); padding-left: 28px; }
.news-list-item .news-title { font-size: 0.98rem; font-weight: 600; color: var(--gray-800); }
.news-list-item .news-title:hover { color: var(--primary); }
.news-list-item .news-date-text { font-size: 0.85rem; color: var(--gray-400); white-space: nowrap; margin-left: 20px; }

/* ===== 侧边栏 ===== */
.sidebar-widget {
  background: var(--white);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 24px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-100);
}
.sidebar-widget h3 { font-size: 1.1rem; margin-bottom: 16px; padding-bottom: 12px; border-bottom: 2px solid var(--primary); }
.sidebar-widget ul { list-style: none; padding: 0; margin: 0; }
.sidebar-widget ul li { margin-bottom: 10px; }
.sidebar-widget ul li a { color: var(--gray-600); font-size: 0.9rem; display: flex; align-items: center; gap: 8px; }
.sidebar-widget ul li a:hover { color: var(--primary); }
.sidebar-contact { }
.sidebar-contact .contact-item { display: flex; gap: 12px; margin-bottom: 16px; font-size: 0.9rem; color: var(--gray-600); }
.sidebar-contact .contact-item .contact-icon { color: var(--primary); flex-shrink: 0; }
.sidebar-contact .contact-item strong { display: block; color: var(--gray-900); font-size: 1.1rem; }

/* ===== 文章详情页 ===== */
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  align-items: center;
  padding: 16px 0;
  border-bottom: 1px solid var(--gray-200);
  margin-bottom: 28px;
  font-size: 0.88rem;
  color: var(--gray-500);
}
.article-meta span { display: inline-flex; align-items: center; gap: 5px; }
.article-content { font-size: 1rem; line-height: 1.85; color: var(--gray-700); }
.article-content p { margin-bottom: 18px; }
.article-content h2 { font-size: 1.5rem; margin: 28px 0 16px; padding-left: 12px; border-left: 4px solid var(--primary); }
.article-content h3 { font-size: 1.2rem; margin: 24px 0 12px; }
.article-content ul, .article-content ol { margin-bottom: 18px; padding-left: 24px; }
.article-content li { margin-bottom: 8px; }
.article-content blockquote {
  border-left: 4px solid var(--primary);
  background: var(--gray-50);
  padding: 16px 24px;
  margin: 24px 0;
  border-radius: 0 var(--radius) var(--radius) 0;
  color: var(--gray-600);
}
.article-content img { border-radius: var(--radius); margin: 20px 0; }
.article-nav {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--gray-200);
}
.article-nav a { font-size: 0.9rem; color: var(--gray-600); max-width: 48%; }
.article-nav a:hover { color: var(--primary); }

/* ===== 关于我们页面 ===== */
.about-hero {
  background: var(--primary-gradient);
  color: var(--white);
  padding: 50px 0;
  position: relative;
  overflow: hidden;
}
.about-hero::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='40' height='40' viewBox='0 0 40 40'%3E%3Cpath fill='rgba(255,255,255,0.04)' d='M20 0l20 20-20 20L0 20z'/%3E%3C/svg%3E");
}
.about-hero h1 { color: var(--white); font-size: 2.2rem; }
.about-hero p { color: rgba(255,255,255,0.85); margin-top: 10px; }
.about-content p { margin-bottom: 18px; font-size: 1rem; }

.timeline { position: relative; padding-left: 32px; }
.timeline::before {
  content: '';
  position: absolute;
  left: 8px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--gray-200);
}
.timeline-item { position: relative; margin-bottom: 30px; }
.timeline-item::before {
  content: '';
  position: absolute;
  left: -32px;
  top: 4px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--primary-gradient);
  border: 3px solid var(--white);
  box-shadow: var(--shadow-md);
}
.timeline-item .timeline-year { font-size: 1.3rem; font-weight: 800; color: var(--primary); margin-bottom: 6px; }
.timeline-item .timeline-content h4 { font-size: 1rem; margin-bottom: 6px; }
.timeline-item .timeline-content p { font-size: 0.88rem; color: var(--gray-500); margin: 0; }

/* ===== FAQ页 ===== */
.faq-item {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  margin-bottom: 14px;
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover { border-color: var(--primary-light); box-shadow: var(--shadow-sm); }
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  cursor: pointer;
  font-weight: 700;
  font-size: 1rem;
  color: var(--gray-900);
  background: var(--white);
  border: none;
  width: 100%;
  text-align: left;
}
.faq-question .faq-icon { flex-shrink: 0; transition: var(--transition); color: var(--primary); }
.faq-item.active .faq-question .faq-icon { transform: rotate(180deg); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  padding: 0 24px;
}
.faq-item.active .faq-answer { max-height: 600px; padding: 0 24px 18px; }
.faq-answer p { font-size: 0.92rem; color: var(--gray-600); margin: 0; }

/* ===== 合作伙伴 ===== */
.partner-card {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius);
  padding: 30px 20px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  height: 100%;
}
.partner-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.partner-card .partner-logo {
  width: 80px;
  height: 80px;
  margin: 0 auto 14px;
  border-radius: 16px;
  background: var(--gray-100);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
}
.partner-card h4 { font-size: 1rem; margin-bottom: 4px; }
.partner-card p { font-size: 0.82rem; color: var(--gray-500); margin: 0; }

/* ===== 联系我们页面 ===== */
.contact-info-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow-md);
  border-top: 4px solid var(--primary);
  height: 100%;
}
.contact-info-card .contact-icon-big {
  width: 50px;
  height: 50px;
  border-radius: 12px;
  background: rgba(37,99,235,0.1);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 16px;
}
.contact-info-card h4 { font-size: 1.1rem; margin-bottom: 8px; }
.contact-info-card p { font-size: 0.9rem; color: var(--gray-600); margin: 0; word-break: break-all; }

.contact-form .form-control {
  border: 1px solid var(--gray-200);
  border-radius: 8px;
  padding: 12px 16px;
  font-size: 0.92rem;
  transition: var(--transition);
}
.contact-form .form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37,99,235,0.1);
}
.contact-form .btn-primary {
  background: var(--primary-gradient);
  border: none;
  padding: 12px 40px;
  border-radius: 50px;
  font-weight: 700;
  font-size: 0.95rem;
  transition: var(--transition);
}
.contact-form .btn-primary:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }

/* ===== 底部Footer ===== */
.site-footer {
  background: var(--gray-900);
  color: var(--gray-400);
  padding: 56px 0 0;
}
.site-footer h5 { color: var(--white); font-size: 1.05rem; margin-bottom: 20px; font-weight: 700; }
.site-footer .footer-about p { font-size: 0.88rem; line-height: 1.8; margin-bottom: 16px; }
.site-footer .footer-links { list-style: none; padding: 0; }
.site-footer .footer-links li { margin-bottom: 10px; }
.site-footer .footer-links li a { color: var(--gray-400); font-size: 0.88rem; transition: var(--transition); }
.site-footer .footer-links li a:hover { color: var(--white); padding-left: 4px; }
.site-footer .footer-contact-item { display: flex; gap: 10px; margin-bottom: 14px; font-size: 0.88rem; }
.site-footer .footer-contact-item .footer-icon { color: var(--primary-light); flex-shrink: 0; }
.site-footer .footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 18px 0;
  margin-top: 40px;
  font-size: 0.82rem;
  text-align: center;
}
.site-footer .footer-bottom a { color: var(--gray-500); }
.site-footer .footer-bottom a:hover { color: var(--gray-300); }
.footer-douyin-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: linear-gradient(135deg, #1a1a1a 0%, #333333 100%);
  color: #fff;
  padding: 6px 16px;
  border-radius: 50px;
  font-size: 0.82rem;
  font-weight: 600;
  transition: var(--transition);
  margin-top: 12px;
}
.footer-douyin-link:hover { color: #ff6b6b; }

/* ===== 回到顶部 ===== */
.back-to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--primary-gradient);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  cursor: pointer;
  border: none;
  box-shadow: var(--shadow-lg);
  transition: var(--transition);
  opacity: 0;
  visibility: hidden;
  z-index: 1000;
}
.back-to-top.visible { opacity: 1; visibility: visible; }
.back-to-top:hover { transform: translateY(-4px); box-shadow: var(--shadow-xl); }

/* ===== CTA横幅 ===== */
.cta-section {
  background: var(--primary-gradient);
  color: var(--white);
  padding: 56px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='40' height='40' viewBox='0 0 40 40'%3E%3Cpath fill='rgba(255,255,255,0.04)' d='M20 0l20 20-20 20L0 20z'/%3E%3C/svg%3E");
}
.cta-section h2 { color: var(--white); font-size: 2rem; margin-bottom: 12px; position: relative; z-index: 1; }
.cta-section p { color: rgba(255,255,255,0.85); font-size: 1.05rem; margin-bottom: 24px; position: relative; z-index: 1; }
.cta-section .btn { position: relative; z-index: 1; }

/* ===== 分站入口区域 ===== */
.site-links-section {
  background: var(--gray-50);
  padding: 48px 0 56px;
}
.site-links-section .section-title {
  text-align: center;
  margin-bottom: 28px;
}
.site-links-section .section-title h2 {
  font-size: 1.75rem;
  color: var(--gray-900);
  margin-bottom: 10px;
}
.site-links-section .section-title .section-subtitle {
  font-size: 0.9rem;
  color: var(--gray-500);
}
.site-links-section .title-line {
  width: 40px;
  height: 3px;
  background: var(--primary);
  border-radius: 2px;
  margin: 14px auto 0;
}
.site-links-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  max-width: 1200px;
  margin: 0 auto;
}
.site-links-grid .site-link-item {
  display: inline-block;
  padding: 8px 18px;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 8px;
  font-size: 0.85rem;
  color: var(--gray-700);
  text-decoration: none;
  transition: var(--transition);
  white-space: nowrap;
}
.site-links-grid .site-link-item:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(37,99,235,0.04);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}
.site-links-grid .site-link-more {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 8px 18px;
  background: transparent;
  border: 1px dashed var(--gray-300);
  border-radius: 8px;
  font-size: 0.85rem;
  color: var(--gray-500);
  text-decoration: none;
  transition: var(--transition);
  white-space: nowrap;
  cursor: pointer;
}
.site-links-grid .site-link-more:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(37,99,235,0.04);
}
.site-links-grid .site-link-more svg {
  width: 14px;
  height: 14px;
}

/* ===== 汇总列表页面 ===== */
.area-sites-page .area-sites-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 0;
  margin: 0;
  list-style: none;
}
.area-sites-page .area-sites-list li a {
  display: inline-block;
  padding: 8px 18px;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 8px;
  font-size: 0.85rem;
  color: var(--gray-700);
  text-decoration: none;
  transition: var(--transition);
  white-space: nowrap;
}
.area-sites-page .area-sites-list li a:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(37,99,235,0.04);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}
.area-sites-page .area-count {
  font-size: 0.85rem;
  color: var(--gray-500);
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid var(--gray-200);
}

/* ===== 面包屑导航 ===== */
.breadcrumb-section {
  background: var(--gray-50);
  padding: 14px 0;
  border-bottom: 1px solid var(--gray-100);
}
.breadcrumb-section .breadcrumb {
  margin: 0;
  font-size: 0.85rem;
  background: none;
  padding: 0;
}
.breadcrumb-section .breadcrumb-item a { color: var(--gray-500); }
.breadcrumb-section .breadcrumb-item a:hover { color: var(--primary); }
.breadcrumb-section .breadcrumb-item.active { color: var(--gray-700); }

/* ===== 动画 ===== */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}
.fade-in-up { animation: fadeInUp 0.6s ease forwards; }

/* ===== 响应式适配 ===== */
@media (max-width: 991.98px) {
  .hero-content h1 { font-size: 2rem; }
  .hero-content .hero-subtitle { font-size: 1rem; }
  .section-title h2 { font-size: 1.6rem; }
  .section-padding { padding: 50px 0; }
  .main-navbar .navbar-collapse {
    background: var(--white);
    border-radius: var(--radius);
    padding: 10px;
    margin-top: 10px;
    box-shadow: var(--shadow-md);
  }
  .main-navbar .nav-link { padding: 10px 16px !important; }
  .main-navbar .nav-link.active::after { display: none; }
  .nav-phone-btn { margin-top: 6px; }
}

@media (max-width: 575.98px) {
  .hero-content h1 { font-size: 1.65rem; }
  .hero-section { min-height: auto; padding: 40px 0; }
  .stat-item .stat-number { font-size: 2rem; }
  .section-title h2 { font-size: 1.4rem; }
  .section-padding { padding: 40px 0; }
  .top-bar { font-size: 0.76rem; }
  .top-bar .top-bar-contact strong { font-size: 0.82rem; }
  .news-card { flex-direction: column; }
  .news-card .news-date { min-width: auto; display: flex; gap: 6px; align-items: baseline; }
  .article-content h2 { font-size: 1.25rem; }
}