/* ========================================
   蓉悦医疗集团 - 官方网站样式
   风格: Luxury × Apple | 明亮 · 优雅 · 简约 · 专业
   GEO优化: 语义化结构 + Schema标记 + 响应式
   ======================================== */

:root {
  /* 品牌色 — Logo 金色系 #988060 */
  --primary: #988060;
  --primary-light: #C8B8A0;
  --primary-dark: #6B5A40;
  --accent-gold: #B8A078;
  --accent-blush: #F0E8E0;
  --accent-cream: #FFFBF5;

  /* 中性色 */
  --black: #1A1A1A;
  --charcoal: #2D2D2D;
  --gray-dark: #4A4A4A;
  --gray: #6B6B6B;
  --gray-light: #9E9E9E;
  --gray-lighter: #E5E5E5;
  --white: #FFFFFF;
  --off-white: #FAFAFA;

  /* 功能色 */
  --success: #34C759;
  --warning: #FF9500;

  /* 字体 */
  --font-cn: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-en: "SF Pro Display", -apple-system, sans-serif;

  /* 间距 */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;

  /* 圆角 */
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;

  /* 阴影 */
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-md: 0 8px 30px rgba(0,0,0,0.08);
  --shadow-lg: 0 20px 60px rgba(0,0,0,0.10);

  /* 过渡 */
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== 基础重置 ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-cn);
  color: var(--charcoal);
  background: var(--white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img { max-width: 100%; height: auto; display: block; object-fit: contain; }
a { color: inherit; text-decoration: none; transition: var(--transition); }
ul, ol { list-style: none; }

/* ===== 布局容器 ===== */
.container { max-width: 1200px; margin: 0 auto; padding: 0 var(--space-md); }
.section { padding: var(--space-2xl) 0; }
.section-alt { background: var(--accent-cream); }

/* ===== 导航 ===== */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(255,255,255,0.85);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid rgba(0,0,0,0.05);
  transition: var(--transition);
}
.navbar .container {
  display: flex; align-items: center; justify-content: space-between; height: 64px;
}
.logo { display: flex; align-items: center; flex-shrink: 0; gap: 0.6rem; }
.logo img { height: 40px; width: auto; object-fit: contain; flex-shrink: 0; }
.logo-text { display: flex; flex-direction: column; line-height: 1.2; }
.logo-text .name { font-size: 1.05rem; font-weight: 700; color: var(--primary); letter-spacing: 0.05em; }
.logo-text .sub { font-size: 0.5rem; font-weight: 500; color: var(--gray-light); text-transform: uppercase; letter-spacing: 0.15em; }
.nav-links { display: flex; gap: var(--space-lg); }
.nav-links a {
  font-size: 0.9rem; font-weight: 500; color: var(--gray-dark); position: relative;
  white-space: nowrap;
}
.nav-links a:hover, .nav-links a.active { color: var(--primary); }
.nav-links a.active::after {
  content: ''; position: absolute; bottom: -4px; left: 0; right: 0;
  height: 2px; background: var(--primary); border-radius: 1px;
}
.nav-cta {
  background: var(--primary); color: var(--white) !important;
  padding: 0.5rem 1.25rem; border-radius: var(--radius-sm);
  font-weight: 600; font-size: 0.85rem; white-space: nowrap;
}
.nav-cta:hover { background: var(--primary-dark); transform: translateY(-1px); }

/* 移动端菜单 */
.mobile-toggle { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 8px; }
.mobile-toggle span { width: 24px; height: 2px; background: var(--charcoal); transition: var(--transition); }

/* ===== 按钮 ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  padding: 0.875rem 2rem; border-radius: var(--radius-sm); font-size: 0.95rem;
  font-weight: 600; cursor: pointer; border: none; transition: var(--transition);
  font-family: var(--font-cn);
}
.btn-primary { background: var(--primary); color: var(--white); }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn-outline { background: transparent; color: var(--primary); border: 2px solid var(--primary); }
.btn-outline:hover { background: var(--primary); color: var(--white); }
.btn-lg { padding: 1rem 2.5rem; font-size: 1rem; }
.btn-white { background: var(--white); color: var(--primary); font-weight: 700; }
.btn-white:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }

/* ===== Hero区域 ===== */
.hero {
  padding-top: 140px; padding-bottom: var(--space-2xl);
  background: linear-gradient(135deg, var(--accent-cream) 0%, var(--white) 50%, var(--accent-blush) 100%);
  position: relative; overflow: hidden;
}
.hero::before {
  content: ''; position: absolute; top: -50%; right: -20%; width: 80%; height: 200%;
  background: radial-gradient(ellipse, rgba(152,128,96,0.08) 0%, transparent 70%);
  pointer-events: none;
}
.hero .container { position: relative; z-index: 1; }
.hero-content { max-width: 680px; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 0.5rem;
  background: rgba(196,162,101,0.1); color: var(--primary);
  padding: 0.375rem 1rem; border-radius: 100px; font-size: 0.8rem;
  font-weight: 600; margin-bottom: var(--space-md);
}
.hero h1 {
  font-size: 3.2rem; font-weight: 700; line-height: 1.15;
  color: var(--black); margin-bottom: var(--space-md); letter-spacing: -0.03em;
}
.hero h1 .highlight { color: var(--primary); }
.hero p { font-size: 1.15rem; color: var(--gray); margin-bottom: var(--space-lg); line-height: 1.8; }
.hero-btns { display: flex; gap: var(--space-sm); flex-wrap: wrap; }
.hero-stats {
  display: flex; gap: var(--space-xl); margin-top: var(--space-xl);
  padding-top: var(--space-lg); border-top: 1px solid var(--gray-lighter);
}
.stat-item { text-align: center; }
.stat-number {
  font-family: var(--font-en); font-size: 2rem; font-weight: 700;
  color: var(--primary); line-height: 1;
}
.stat-label { font-size: 0.8rem; color: var(--gray-light); margin-top: 0.25rem; }

/* ===== 标题组件 ===== */
.section-header { text-align: center; max-width: 600px; margin: 0 auto var(--space-xl); }
.section-tag {
  display: inline-block; color: var(--primary); font-size: 0.8rem;
  font-weight: 600; text-transform: uppercase; letter-spacing: 0.1em;
  margin-bottom: var(--space-sm);
}
.section-title {
  font-size: 2.2rem; font-weight: 700; color: var(--black);
  line-height: 1.25; margin-bottom: var(--space-sm); letter-spacing: -0.02em;
}
.section-desc { font-size: 1.05rem; color: var(--gray); line-height: 1.7; }

/* ===== 服务卡片 ===== */
.services-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: var(--space-md); }
.service-card {
  background: var(--white); border-radius: var(--radius-md); padding: var(--space-lg);
  box-shadow: var(--shadow-sm); transition: var(--transition); border: 1px solid rgba(0,0,0,0.04);
}
.service-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.service-icon {
  width: 56px; height: 56px; border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--primary-light), var(--primary));
  display: flex; align-items: center; justify-content: center;
  color: var(--white); font-size: 1.5rem; margin-bottom: var(--space-md);
}
.service-card h3 { font-size: 1.15rem; font-weight: 600; margin-bottom: 0.5rem; color: var(--black); }
.service-card p { font-size: 0.9rem; color: var(--gray); line-height: 1.7; }

/* ===== 特色区域 ===== */
.feature-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-xl); align-items: center; }
.feature-content h2 {
  font-size: 2rem; font-weight: 700; color: var(--black);
  margin-bottom: var(--space-md); line-height: 1.3;
}
.feature-content p { color: var(--gray); margin-bottom: var(--space-md); line-height: 1.8; }
.feature-list { display: flex; flex-direction: column; gap: var(--space-sm); }
.feature-list li { display: flex; align-items: flex-start; gap: 0.75rem; font-size: 0.95rem; color: var(--gray-dark); }
.feature-list .check {
  width: 22px; height: 22px; border-radius: 50%; background: var(--success);
  color: var(--white); display: flex; align-items: center; justify-content: center;
  font-size: 0.7rem; flex-shrink: 0; margin-top: 2px;
}
.feature-visual {
  background: linear-gradient(135deg, var(--accent-blush), var(--accent-cream));
  border-radius: var(--radius-lg); padding: var(--space-xl);
  display: flex; align-items: center; justify-content: center; min-height: 360px;
}
.feature-visual-placeholder { text-align: center; color: var(--gray-light); }
.feature-visual-placeholder .icon { font-size: 4rem; margin-bottom: var(--space-sm); opacity: 0.5; }

/* ===== FAQ ===== */
.faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: var(--space-sm); }
.faq-item {
  background: var(--white); border-radius: var(--radius-md);
  border: 1px solid var(--gray-lighter); overflow: hidden; transition: var(--transition);
}
.faq-item:hover { border-color: var(--primary-light); }
.faq-question {
  width: 100%; display: flex; align-items: center; justify-content: space-between;
  padding: var(--space-md) var(--space-lg); background: none; border: none;
  font-family: var(--font-cn); font-size: 1rem; font-weight: 600;
  color: var(--black); cursor: pointer; text-align: left;
}
.faq-question .icon {
  width: 28px; height: 28px; border-radius: 50%; background: var(--accent-blush);
  color: var(--primary); display: flex; align-items: center; justify-content: center;
  font-size: 0.8rem; flex-shrink: 0; transition: var(--transition);
}
.faq-item.active .faq-question .icon { transform: rotate(180deg); background: var(--primary); color: var(--white); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.3s ease, padding 0.3s ease; }
.faq-item.active .faq-answer { max-height: 500px; padding: 0 var(--space-lg) var(--space-md); }
.faq-answer p { color: var(--gray); line-height: 1.8; font-size: 0.95rem; }

/* ===== 科普文章卡 ===== */
.knowledge-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: var(--space-md); }
.knowledge-card {
  background: var(--white); border-radius: var(--radius-md); overflow: hidden;
  box-shadow: var(--shadow-sm); border: 1px solid rgba(0,0,0,0.04); transition: var(--transition);
}
.knowledge-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.knowledge-card .card-img {
  height: 180px; background: linear-gradient(135deg, var(--accent-blush), var(--primary-light));
  display: flex; align-items: center; justify-content: center; font-size: 3rem; opacity: 0.6;
}
.knowledge-card .card-body { padding: var(--space-md); }
.knowledge-card .card-tag {
  display: inline-block; background: var(--accent-blush); color: var(--primary);
  padding: 0.25rem 0.75rem; border-radius: 100px; font-size: 0.75rem;
  font-weight: 600; margin-bottom: 0.5rem;
}
.knowledge-card h3 { font-size: 1.1rem; font-weight: 600; margin-bottom: 0.5rem; color: var(--black); line-height: 1.4; }
.knowledge-card p { font-size: 0.9rem; color: var(--gray); line-height: 1.7; }

/* ===== 步骤 ===== */
.steps-list { display: flex; flex-direction: column; gap: var(--space-md); max-width: 700px; margin: 0 auto; }
.step-item { display: flex; gap: var(--space-md); align-items: flex-start; }
.step-number {
  width: 44px; height: 44px; border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: var(--white); display: flex; align-items: center; justify-content: center;
  font-family: var(--font-en); font-size: 1.1rem; font-weight: 700; flex-shrink: 0;
}
.step-content h4 { font-size: 1.1rem; font-weight: 600; color: var(--black); margin-bottom: 0.25rem; }
.step-content p { font-size: 0.95rem; color: var(--gray); line-height: 1.7; }

/* ===== 团队卡片 ===== */
.team-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: var(--space-md); }
.team-card {
  background: var(--white); border-radius: var(--radius-md); padding: var(--space-lg);
  text-align: center; box-shadow: var(--shadow-sm); border: 1px solid rgba(0,0,0,0.04);
  transition: var(--transition);
}
.team-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.team-avatar {
  width: 100px; height: 100px; border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-blush), var(--primary-light));
  margin: 0 auto var(--space-md); display: flex; align-items: center;
  justify-content: center; font-size: 2.5rem; color: var(--primary);
}
.team-card h3 { font-size: 1.15rem; font-weight: 600; color: var(--black); margin-bottom: 0.25rem; }
.team-card .title { font-size: 0.85rem; color: var(--primary); font-weight: 600; margin-bottom: var(--space-sm); }
.team-card .desc { font-size: 0.85rem; color: var(--gray); line-height: 1.7; }

/* ===== 子品牌Logo ===== */
.sub-brand-logo { max-width: 300px; height: auto; object-fit: contain; border-radius: var(--radius-sm); }

/* ===== 评价卡片 ===== */
.review-card {
  background: var(--white); border-radius: var(--radius-md); padding: var(--space-lg);
  box-shadow: var(--shadow-sm); border: 1px solid rgba(0,0,0,0.04);
}
.review-stars { color: var(--accent-gold); font-size: 1.1rem; margin-bottom: var(--space-sm); }
.review-text { font-size: 0.95rem; color: var(--gray-dark); line-height: 1.8; margin-bottom: var(--space-md); font-style: italic; }
.review-author { display: flex; align-items: center; gap: 0.75rem; }
.review-avatar {
  width: 40px; height: 40px; border-radius: 50%; background: var(--accent-blush);
  display: flex; align-items: center; justify-content: center; color: var(--primary); font-weight: 600;
}
.review-author-info .name { font-size: 0.9rem; font-weight: 600; color: var(--black); }
.review-author-info .service { font-size: 0.8rem; color: var(--gray-light); }

/* ===== 联系表单 ===== */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-xl); }
.contact-info h3 { font-size: 1.3rem; font-weight: 600; margin-bottom: var(--space-md); color: var(--black); }
.contact-item { display: flex; align-items: flex-start; gap: var(--space-sm); margin-bottom: var(--space-md); }
.contact-item .icon {
  width: 40px; height: 40px; border-radius: var(--radius-sm); background: var(--accent-blush);
  color: var(--primary); display: flex; align-items: center; justify-content: center;
  font-size: 1rem; flex-shrink: 0;
}
.contact-item h4 { font-size: 0.9rem; font-weight: 600; color: var(--black); margin-bottom: 0.2rem; }
.contact-item p { font-size: 0.9rem; color: var(--gray); }
.form-group { margin-bottom: var(--space-md); }
.form-group label { display: block; font-size: 0.85rem; font-weight: 600; color: var(--black); margin-bottom: 0.4rem; }
.form-group input, .form-group textarea, .form-group select {
  width: 100%; padding: 0.75rem 1rem; border: 1px solid var(--gray-lighter);
  border-radius: var(--radius-sm); font-family: var(--font-cn); font-size: 0.95rem;
  color: var(--charcoal); background: var(--white); transition: var(--transition);
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
  outline: none; border-color: var(--primary-light); box-shadow: 0 0 0 3px rgba(196,162,101,0.15);
}
.form-group textarea { min-height: 120px; resize: vertical; }

/* ===== 价格表 ===== */
.pricing-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: var(--space-md); }
.pricing-card {
  background: var(--white); border-radius: var(--radius-md); padding: var(--space-lg);
  box-shadow: var(--shadow-sm); border: 1px solid rgba(0,0,0,0.04); transition: var(--transition);
}
.pricing-card.featured { border-color: var(--primary-light); box-shadow: var(--shadow-md); position: relative; }
.pricing-card.featured::before {
  content: '热门'; position: absolute; top: -1px; right: var(--space-lg);
  background: var(--primary); color: var(--white); padding: 0.25rem 0.75rem;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm); font-size: 0.75rem; font-weight: 600;
}
.pricing-card h3 { font-size: 1.1rem; font-weight: 600; color: var(--black); margin-bottom: var(--space-sm); }
.pricing-price { font-family: var(--font-en); font-size: 2rem; font-weight: 700; color: var(--primary); margin-bottom: var(--space-sm); }
.pricing-price span { font-size: 0.9rem; color: var(--gray-light); font-weight: 400; }
.pricing-card ul { margin-bottom: var(--space-md); }
.pricing-card ul li {
  display: flex; align-items: center; gap: 0.5rem; padding: 0.4rem 0;
  font-size: 0.9rem; color: var(--gray-dark); border-bottom: 1px solid var(--gray-lighter);
}
.pricing-card ul li .check { color: var(--success); }

/* ===== 页脚 ===== */
.footer { background: var(--black); color: var(--gray-light); padding: var(--space-xl) 0 var(--space-lg); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: var(--space-xl); margin-bottom: var(--space-xl); }
.footer-brand .logo { margin-bottom: var(--space-sm); display: inline-block; }
.footer-brand p { font-size: 0.9rem; line-height: 1.8; color: var(--gray); }
.footer-col h4 { font-size: 0.9rem; font-weight: 600; color: var(--white); margin-bottom: var(--space-md); text-transform: uppercase; letter-spacing: 0.05em; }
.footer-col ul li { margin-bottom: 0.6rem; }
.footer-col ul li a { font-size: 0.9rem; color: var(--gray); transition: var(--transition); }
.footer-col ul li a:hover { color: var(--primary-light); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08); padding-top: var(--space-lg);
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: var(--space-sm);
}
.footer-bottom p { font-size: 0.8rem; color: var(--gray); }

/* ===== 面包屑 ===== */
.breadcrumb { padding-top: 100px; padding-bottom: var(--space-sm); background: var(--accent-cream); }
.breadcrumb ol { display: flex; gap: 0.5rem; font-size: 0.85rem; color: var(--gray); }
.breadcrumb ol li:not(:last-child)::after { content: '/'; margin-left: 0.5rem; color: var(--gray-light); }
.breadcrumb a:hover { color: var(--primary); }

/* ===== 响应式 ===== */

/* 平板端 */
@media (max-width: 992px) {
  .feature-row { grid-template-columns: 1fr; gap: var(--space-lg); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .doctors-grid { grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }
}

/* 手机端 */
@media (max-width: 768px) {
  .hero h1 { font-size: 1.8rem; line-height: 1.3; }
  .hero-badge { font-size: 0.8rem; }
  .section-title { font-size: 1.5rem; }
  .section-desc { font-size: 0.9rem; }
  .nav-links {
    display: none; position: fixed; top: 64px; left: 0; right: 0;
    background: var(--white); flex-direction: column; padding: var(--space-md);
    gap: 0; border-bottom: 1px solid var(--gray-lighter);
    box-shadow: var(--shadow-md); z-index: 999;
  }
  .nav-links.open { display: flex; }
  .nav-links li { width: 100%; }
  .nav-links a { display: block; padding: 0.75rem 0; border-bottom: 1px solid var(--gray-lighter); }
  .mobile-toggle { display: flex; }
  .hero-stats { flex-direction: column; gap: var(--space-md); }
  .hero-stats .stat { padding: 1rem; }
  .footer-grid { grid-template-columns: 1fr; gap: var(--space-lg); }
  .footer-bottom { flex-direction: column; text-align: center; gap: var(--space-sm); }
  .contact-grid { grid-template-columns: 1fr; }
  .doctors-grid { grid-template-columns: 1fr; }
  
  /* 触摸优化 */
  .btn { min-height: 44px; display: inline-flex; align-items: center; justify-content: center; }
  .form-group input, .form-group textarea, .form-group select { font-size: 16px; /* 防止iOS缩放 */ }
  .nav-cta { display: none; } /* 手机端隐藏预约按钮，用菜单代替 */
}

/* 超小屏幕 */
@media (max-width: 480px) {
  .container { padding-left: 1rem; padding-right: 1rem; }
  .hero { padding: 100px 0 40px; }
  .hero h1 { font-size: 1.5rem; }
  .section { padding: 3rem 0; }
  .section-header { margin-bottom: var(--space-lg); }
  .logo-text .name { font-size: 0.9rem; }
  .logo-text .sub { font-size: 0.45rem; }
}

/* ===== 工具类 ===== */
.text-center { text-align: center; }
.mt-sm { margin-top: var(--space-sm); } .mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); } .mt-xl { margin-top: var(--space-xl); }
.mb-sm { margin-bottom: var(--space-sm); } .mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); } .mb-xl { margin-bottom: var(--space-xl); }