/* 糖心母婴育儿与亲子记录 - 主样式表 */
:root {
  --primary: #F8BBD0;
  --secondary: #B3E5FC;
  --bg: #FFFCFD;
  --card: #FFFFFF;
  --accent: #FF6F00;
  --text: #4E342E;
  --text-light: #795548;
  --radius: 24px;
  --radius-sm: 12px;
  --shadow: 0 4px 20px rgba(248, 187, 208, 0.2);
  --shadow-hover: 0 8px 32px rgba(248, 187, 208, 0.35);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-title: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-body: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --max-width: 1200px;
  --gap: 24px;
}

/* 基础重置 */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: var(--text);
  text-decoration: none;
  transition: var(--transition);
}

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

ul, ol {
  list-style: none;
}

/* 容器 */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--gap);
}

/* 导航栏 */
.nav-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 252, 253, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(248, 187, 208, 0.2);
  padding: 12px 0;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--gap);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text);
}

.nav-logo .logo-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

.nav-menu {
  display: flex;
  gap: 28px;
  align-items: center;
}

.nav-menu a {
  font-size: 0.95rem;
  font-weight: 500;
  position: relative;
  padding: 4px 0;
}

.nav-menu a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transition: var(--transition);
}

.nav-menu a:hover::after {
  width: 100%;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}

/* 首屏 */
.hero-section {
  position: relative;
  padding: 80px 0 60px;
  overflow: hidden;
  background: linear-gradient(135deg, rgba(248, 187, 208, 0.1), rgba(179, 229, 252, 0.1));
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.hero-content h1 {
  font-size: 2.8rem;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 16px;
  background: linear-gradient(135deg, var(--text), var(--text-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-content .subtitle {
  font-size: 1.2rem;
  color: var(--text-light);
  margin-bottom: 32px;
  line-height: 1.8;
}

.hero-image {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.hero-image img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: var(--transition);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), #F48FB1);
  color: #fff;
  box-shadow: 0 4px 16px rgba(248, 187, 208, 0.4);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(248, 187, 208, 0.5);
  color: #fff;
}

.btn-secondary {
  background: var(--card);
  color: var(--text);
  border: 2px solid var(--primary);
}

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

.btn-accent {
  background: linear-gradient(135deg, var(--accent), #FF8F00);
  color: #fff;
  box-shadow: 0 4px 16px rgba(255, 111, 0, 0.3);
}

.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255, 111, 0, 0.4);
  color: #fff;
}

/* 区块标题 */
.section-title {
  text-align: center;
  margin-bottom: 48px;
}

.section-title h2 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text);
}

.section-title p {
  font-size: 1.05rem;
  color: var(--text-light);
  max-width: 600px;
  margin: 0 auto;
}

/* 卡片系统 */
.card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border: 1px solid rgba(248, 187, 208, 0.1);
}

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

.card-image {
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-bottom: 16px;
}

.card-image img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  transition: var(--transition);
}

.card:hover .card-image img {
  transform: scale(1.05);
}

.card-title {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.card-desc {
  font-size: 0.9rem;
  color: var(--text-light);
  line-height: 1.7;
}

.card-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 12px;
  font-size: 0.85rem;
  color: var(--text-light);
}

/* 网格布局 */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--gap);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap);
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--gap);
}

/* 时间线 */
.timeline {
  position: relative;
  padding: 20px 0;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(to bottom, var(--primary), var(--secondary));
  border-radius: 3px;
  transform: translateX(-50%);
}

.timeline-item {
  position: relative;
  width: 45%;
  padding: 24px;
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  margin-bottom: 32px;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 0.6s forwards;
}

.timeline-item:nth-child(odd) {
  margin-left: 5%;
}

.timeline-item:nth-child(even) {
  margin-left: 50%;
}

.timeline-node {
  position: absolute;
  top: 30px;
  width: 16px;
  height: 16px;
  background: var(--primary);
  border: 3px solid var(--card);
  border-radius: 50%;
  box-shadow: 0 0 0 4px var(--primary);
}

.timeline-item:nth-child(odd) .timeline-node {
  right: -8px;
}

.timeline-item:nth-child(even) .timeline-node {
  left: -8px;
}

.timeline-month {
  font-size: 0.85rem;
  color: var(--primary);
  font-weight: 600;
  margin-bottom: 8px;
}

.timeline-title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.timeline-desc {
  font-size: 0.9rem;
  color: var(--text-light);
}

/* 里程碑 */
.milestone-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--gap);
}

.milestone-card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border-top: 4px solid var(--primary);
}

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

.milestone-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  font-size: 1.5rem;
}

.milestone-title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.milestone-desc {
  font-size: 0.9rem;
  color: var(--text-light);
}

/* 辅食日历 */
.recipe-calendar {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--gap);
}

.recipe-card {
  background: var(--card);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

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

.recipe-image {
  height: 180px;
  overflow: hidden;
}

.recipe-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.recipe-card:hover .recipe-image img {
  transform: scale(1.05);
}

.recipe-info {
  padding: 20px;
}

.recipe-tag {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(248, 187, 208, 0.2);
  color: var(--text-light);
  border-radius: 20px;
  font-size: 0.8rem;
  margin-bottom: 8px;
}

.recipe-title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.recipe-desc {
  font-size: 0.9rem;
  color: var(--text-light);
}

/* 专家卡片 */
.expert-card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 28px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

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

.expert-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
}

.expert-name {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.expert-title {
  font-size: 0.85rem;
  color: var(--text-light);
  margin-bottom: 12px;
}

.expert-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: center;
}

.expert-tag {
  padding: 3px 10px;
  background: rgba(179, 229, 252, 0.3);
  border-radius: 12px;
  font-size: 0.75rem;
  color: var(--text-light);
}

/* 疫苗提醒 */
.vaccine-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.vaccine-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  background: var(--card);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.vaccine-item:hover {
  box-shadow: var(--shadow-hover);
}

.vaccine-status {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  flex-shrink: 0;
}

.vaccine-status.done {
  background: rgba(76, 175, 80, 0.15);
  color: #4CAF50;
}

.vaccine-status.pending {
  background: rgba(255, 111, 0, 0.15);
  color: var(--accent);
}

.vaccine-info {
  flex: 1;
}

.vaccine-name {
  font-weight: 600;
  font-size: 0.95rem;
}

.vaccine-time {
  font-size: 0.85rem;
  color: var(--text-light);
}

/* 页脚 */
.site-footer {
  background: linear-gradient(135deg, rgba(248, 187, 208, 0.08), rgba(179, 229, 252, 0.08));
  border-top: 1px solid rgba(248, 187, 208, 0.2);
  padding: 60px 0 30px;
  margin-top: 80px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand h3 {
  font-size: 1.3rem;
  margin-bottom: 12px;
}

.footer-brand p {
  font-size: 0.9rem;
  color: var(--text-light);
  line-height: 1.8;
}

.footer-links h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text);
}

.footer-links a {
  display: block;
  font-size: 0.9rem;
  color: var(--text-light);
  padding: 4px 0;
}

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

.footer-bottom {
  text-align: center;
  padding-top: 24px;
  border-top: 1px solid rgba(248, 187, 208, 0.2);
  font-size: 0.85rem;
  color: var(--text-light);
}

.footer-bottom a {
  color: var(--text-light);
  margin: 0 8px;
}

/* 面包屑 */
.breadcrumb {
  padding: 16px 0;
  font-size: 0.9rem;
  color: var(--text-light);
}

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

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

.breadcrumb span {
  margin: 0 8px;
  color: var(--primary);
}

/* 页面标题区 */
.page-header {
  padding: 48px 0 32px;
  text-align: center;
  background: linear-gradient(135deg, rgba(248, 187, 208, 0.08), rgba(179, 229, 252, 0.08));
  margin-bottom: 48px;
  border-radius: 0 0 var(--radius) var(--radius);
}

.page-header h1 {
  font-size: 2.2rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.page-header p {
  font-size: 1.05rem;
  color: var(--text-light);
  max-width: 700px;
  margin: 0 auto;
}

/* FAQ */
.faq-section {
  margin: 48px 0;
}

.faq-item {
  background: var(--card);
  border-radius: var(--radius-sm);
  padding: 20px 24px;
  margin-bottom: 12px;
  box-shadow: var(--shadow);
  cursor: pointer;
  transition: var(--transition);
}

.faq-item:hover {
  box-shadow: var(--shadow-hover);
}

.faq-question {
  font-weight: 600;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.faq-answer {
  margin-top: 12px;
  font-size: 0.9rem;
  color: var(--text-light);
  line-height: 1.8;
  display: none;
}

.faq-item.active .faq-answer {
  display: block;
}

/* 搜索页 */
.search-box {
  max-width: 600px;
  margin: 0 auto 48px;
  position: relative;
}

.search-input {
  width: 100%;
  padding: 16px 24px;
  padding-right: 56px;
  border: 2px solid var(--primary);
  border-radius: 50px;
  font-size: 1rem;
  outline: none;
  transition: var(--transition);
  background: var(--card);
}

.search-input:focus {
  box-shadow: 0 0 0 4px rgba(248, 187, 208, 0.2);
}

.search-btn {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--primary);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.1rem;
}

.search-results {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.search-result-item {
  padding: 20px;
  background: var(--card);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow);
}

.search-result-item h3 {
  font-size: 1.1rem;
  margin-bottom: 8px;
}

.search-result-item h3 a:hover {
  color: var(--accent);
}

.search-result-item p {
  font-size: 0.9rem;
  color: var(--text-light);
}

/* 标签 */
.tag {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 500;
}

.tag-pink {
  background: rgba(248, 187, 208, 0.2);
  color: #C2185B;
}

.tag-blue {
  background: rgba(179, 229, 252, 0.2);
  color: #0277BD;
}

.tag-orange {
  background: rgba(255, 111, 0, 0.1);
  color: var(--accent);
}

/* 统计数字 */
.stats-row {
  display: flex;
  justify-content: center;
  gap: 48px;
  padding: 32px 0;
}

.stat-item {
  text-align: center;
}

.stat-number {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--primary);
  display: block;
}

.stat-label {
  font-size: 0.9rem;
  color: var(--text-light);
}

/* 动画 */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-8px);
  }
}

@keyframes heartBeat {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.15);
  }
}

.animate-float {
  animation: float 3s ease-in-out infinite;
}

.animate-fadeIn {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s, transform 0.6s;
}

.animate-fadeIn.visible {
  opacity: 1;
  transform: translateY(0);
}

/* 心形点赞 */
.heart-like {
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--text-light);
  font-size: 0.9rem;
  transition: var(--transition);
}

.heart-like:hover {
  color: #E91E63;
}

.heart-like.active {
  color: #E91E63;
  animation: heartBeat 0.4s;
}

/* 产品评分 */
.rating {
  display: flex;
  gap: 2px;
  color: #FFB300;
  font-size: 0.9rem;
}

/* APP下载区 */
.app-showcase {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  padding: 60px 0;
}

.app-features {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.app-feature-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.app-feature-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1.2rem;
}

.app-feature-text h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.app-feature-text p {
  font-size: 0.9rem;
  color: var(--text-light);
}

/* 内容区 */
.content-section {
  padding: 60px 0;
}

.content-section:nth-child(even) {
  background: linear-gradient(135deg, rgba(248, 187, 208, 0.04), rgba(179, 229, 252, 0.04));
}

/* 合规页面 */
.legal-content {
  max-width: 800px;
  margin: 0 auto;
  padding: 32px 0;
}

.legal-content h2 {
  font-size: 1.5rem;
  margin: 32px 0 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--primary);
}

.legal-content h3 {
  font-size: 1.2rem;
  margin: 24px 0 12px;
}

.legal-content p {
  margin-bottom: 16px;
  line-height: 1.9;
}

.legal-content ul {
  padding-left: 20px;
  margin-bottom: 16px;
}

.legal-content ul li {
  list-style: disc;
  margin-bottom: 8px;
  line-height: 1.8;
}

/* 联系表单 */
.contact-form {
  max-width: 600px;
  margin: 0 auto;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 8px;
  font-size: 0.95rem;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid rgba(248, 187, 208, 0.3);
  border-radius: var(--radius-sm);
  font-size: 1rem;
  outline: none;
  transition: var(--transition);
  background: var(--card);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(248, 187, 208, 0.1);
}

.form-group textarea {
  min-height: 120px;
  resize: vertical;
}

/* 404页面 */
.error-page {
  min-height: 60vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 60px var(--gap);
}

.error-code {
  font-size: 8rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 16px;
}

.error-message {
  font-size: 1.3rem;
  color: var(--text-light);
  margin-bottom: 32px;
}

/* 响应式 */
@media (max-width: 768px) {
  :root {
    --gap: 16px;
  }

  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--card);
    flex-direction: column;
    padding: 20px;
    gap: 16px;
    box-shadow: var(--shadow);
    border-radius: 0 0 var(--radius) var(--radius);
  }

  .nav-menu.active {
    display: flex;
  }

  .nav-toggle {
    display: flex;
  }

  .hero-inner {
    grid-template-columns: 1fr;
    gap: 32px;
    text-align: center;
  }

  .hero-content h1 {
    font-size: 2rem;
  }

  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .timeline::before {
    left: 20px;
  }

  .timeline-item {
    width: calc(100% - 50px);
    margin-left: 50px !important;
  }

  .timeline-item .timeline-node {
    left: -38px !important;
    right: auto !important;
  }

  .app-showcase {
    grid-template-columns: 1fr;
  }

  .stats-row {
    flex-wrap: wrap;
    gap: 24px;
  }

  .page-header h1 {
    font-size: 1.6rem;
  }

  .section-title h2 {
    font-size: 1.5rem;
  }
}

@media (max-width: 480px) {
  .hero-content h1 {
    font-size: 1.6rem;
  }

  .btn {
    padding: 12px 24px;
    font-size: 0.9rem;
  }

  .card {
    padding: 20px;
  }
}