/* ========================================
   糖心家居装修与好物推荐 - 主样式表
   莫兰迪色系高级家居风格
   ======================================== */

:root {
  --primary: #A8A29E;
  --secondary: #D7CCC8;
  --bg: #FAF9F7;
  --card: #FFFFFF;
  --accent: #5D4037;
  --text: #3E2723;
  --radius: 8px;
  --shadow: 0 2px 8px rgba(0,0,0,0.04);
  --text-light: #6D4C41;
  --border: #EFEBE9;
  --success: #7CB342;
  --warning: #FF8F00;
  --font-title: -apple-system, "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  --font-body: -apple-system, "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  --font-mono: "JetBrains Mono", "Fira Code", "SF Mono", monospace;
  --max-width: 1200px;
  --header-height: 64px;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  color: var(--text);
  background-color: var(--bg);
  line-height: 1.8;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

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

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.3s ease;
}

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

ul, ol {
  list-style: none;
}

/* 容器 */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* ========================================
   头部导航
   ======================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  height: var(--header-height);
  display: flex;
  align-items: center;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

.site-logo {
  font-family: var(--font-title);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.5px;
}

.site-logo span {
  color: var(--primary);
}

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

.nav-main a {
  font-size: 0.9rem;
  color: var(--text-light);
  font-weight: 500;
  position: relative;
  padding: 4px 0;
}

.nav-main a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width 0.3s ease;
}

.nav-main a:hover::after,
.nav-main a.active::after {
  width: 100%;
}

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

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  transition: all 0.3s ease;
}

/* ========================================
   首屏英雄区
   ======================================== */
.hero-section {
  position: relative;
  min-height: 70vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: linear-gradient(135deg, var(--secondary) 0%, var(--bg) 100%);
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.3;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 60px 20px;
  max-width: 800px;
}

.hero-content h1 {
  font-family: var(--font-title);
  font-size: 3rem;
  font-weight: 800;
  color: var(--accent);
  margin-bottom: 16px;
  line-height: 1.3;
}

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

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

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all 0.3s ease;
}

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

.btn-primary:hover {
  background: #4E342E;
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(93, 64, 55, 0.3);
}

.btn-secondary {
  background: var(--card);
  color: var(--accent);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

/* ========================================
   栏目区块
   ======================================== */
.section {
  padding: 80px 0;
}

.section-alt {
  background: var(--card);
}

.section-header {
  text-align: center;
  margin-bottom: 48px;
}

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

.section-header p {
  font-size: 1rem;
  color: var(--text-light);
  max-width: 600px;
  margin: 0 auto;
}

/* 卡片网格 */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}

.card {
  background: var(--card);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: all 0.3s ease;
  border: 1px solid var(--border);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.08);
}

.card-img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.card-body {
  padding: 20px;
}

.card-body h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text);
}

.card-body p {
  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: 0.8rem;
  color: var(--primary);
}

.card-tag {
  display: inline-block;
  padding: 2px 10px;
  background: var(--bg);
  border-radius: 20px;
  font-size: 0.75rem;
  color: var(--text-light);
}

.card-price {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent);
}

/* ========================================
   Before/After 对比滑块
   ======================================== */
.ba-slider {
  position: relative;
  width: 100%;
  max-width: 800px;
  margin: 0 auto;
  overflow: hidden;
  border-radius: var(--radius);
  cursor: col-resize;
  aspect-ratio: 16/10;
}

.ba-slider img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.ba-slider .ba-after {
  clip-path: inset(0 50% 0 0);
}

.ba-slider .ba-divider {
  position: absolute;
  top: 0;
  left: 50%;
  width: 4px;
  height: 100%;
  background: #fff;
  transform: translateX(-50%);
  z-index: 10;
  box-shadow: 0 0 8px rgba(0,0,0,0.3);
}

.ba-slider .ba-handle {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 44px;
  height: 44px;
  background: #fff;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  z-index: 11;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 8px rgba(0,0,0,0.2);
  font-size: 1.2rem;
  color: var(--accent);
}

.ba-label {
  position: absolute;
  bottom: 16px;
  padding: 4px 12px;
  background: rgba(0,0,0,0.6);
  color: #fff;
  font-size: 0.8rem;
  border-radius: 4px;
  z-index: 5;
}

.ba-label-before { left: 16px; }
.ba-label-after { right: 16px; }

/* ========================================
   预算计算器
   ======================================== */
.budget-calc {
  background: var(--card);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  max-width: 600px;
  margin: 0 auto;
}

.budget-calc h3 {
  font-size: 1.3rem;
  margin-bottom: 24px;
  text-align: center;
  color: var(--accent);
}

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

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text);
}

.form-group input,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.95rem;
  color: var(--text);
  background: var(--bg);
  transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--accent);
}

.budget-result {
  margin-top: 24px;
  padding: 20px;
  background: var(--bg);
  border-radius: var(--radius);
  text-align: center;
}

.budget-total {
  font-family: var(--font-mono);
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--accent);
}

.budget-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 16px;
}

.budget-item {
  display: flex;
  justify-content: space-between;
  padding: 8px 12px;
  background: var(--card);
  border-radius: 4px;
  font-size: 0.85rem;
}

/* ========================================
   场景切换
   ======================================== */
.scene-tabs {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.scene-tab {
  padding: 8px 20px;
  border-radius: 20px;
  font-size: 0.9rem;
  cursor: pointer;
  background: var(--card);
  border: 1px solid var(--border);
  color: var(--text-light);
  transition: all 0.3s ease;
}

.scene-tab.active,
.scene-tab:hover {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.scene-content {
  display: none;
  animation: fadeIn 0.5s ease;
}

.scene-content.active {
  display: block;
}

/* ========================================
   设计师卡片
   ======================================== */
.designer-card {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 24px;
  background: var(--card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  transition: all 0.3s ease;
}

.designer-card:hover {
  box-shadow: 0 4px 16px rgba(0,0,0,0.06);
}

.designer-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--secondary);
}

.designer-info h4 {
  font-size: 1.05rem;
  margin-bottom: 4px;
}

.designer-info p {
  font-size: 0.85rem;
  color: var(--text-light);
}

.designer-stats {
  display: flex;
  gap: 16px;
  margin-top: 8px;
  font-size: 0.8rem;
  color: var(--primary);
}

/* ========================================
   好物清单
   ======================================== */
.product-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.product-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px;
  background: var(--card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  transition: all 0.3s ease;
}

.product-item:hover {
  border-color: var(--accent);
}

.product-check {
  width: 20px;
  height: 20px;
  border-radius: 4px;
  border: 2px solid var(--primary);
  cursor: pointer;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}

.product-check.checked {
  background: var(--accent);
  border-color: var(--accent);
}

.product-check.checked::after {
  content: '✓';
  color: #fff;
  font-size: 0.7rem;
}

.product-img {
  width: 60px;
  height: 60px;
  border-radius: var(--radius);
  object-fit: cover;
}

.product-info {
  flex: 1;
}

.product-info h4 {
  font-size: 0.95rem;
  margin-bottom: 2px;
}

.product-info .brand {
  font-size: 0.8rem;
  color: var(--primary);
}

.product-price {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--accent);
}

/* ========================================
   面包屑
   ======================================== */
.breadcrumb {
  padding: 16px 0;
  font-size: 0.85rem;
  color: var(--text-light);
}

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

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

/* ========================================
   FAQ
   ======================================== */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--border);
  padding: 20px 0;
}

.faq-question {
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text);
}

.faq-question::after {
  content: '+';
  font-size: 1.4rem;
  color: var(--primary);
  transition: transform 0.3s ease;
}

.faq-item.open .faq-question::after {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
  color: var(--text-light);
  font-size: 0.9rem;
  line-height: 1.8;
}

.faq-item.open .faq-answer {
  max-height: 500px;
  padding-top: 12px;
}

/* ========================================
   页脚
   ======================================== */
.site-footer {
  background: var(--text);
  color: rgba(255,255,255,0.8);
  padding: 60px 0 30px;
  margin-top: auto;
}

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

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

.footer-brand p {
  font-size: 0.85rem;
  line-height: 1.8;
  color: rgba(255,255,255,0.6);
}

.footer-links h4 {
  color: #fff;
  font-size: 0.95rem;
  margin-bottom: 16px;
}

.footer-links a {
  display: block;
  color: rgba(255,255,255,0.6);
  font-size: 0.85rem;
  padding: 4px 0;
  transition: color 0.3s ease;
}

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

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 20px;
  text-align: center;
  font-size: 0.8rem;
  color: rgba(255,255,255,0.4);
}

/* ========================================
   搜索页
   ======================================== */
.search-box {
  max-width: 600px;
  margin: 40px auto;
  position: relative;
}

.search-box input {
  width: 100%;
  padding: 16px 50px 16px 20px;
  border: 2px solid var(--border);
  border-radius: 30px;
  font-size: 1rem;
  background: var(--card);
  transition: border-color 0.3s ease;
}

.search-box input:focus {
  outline: none;
  border-color: var(--accent);
}

.search-box button {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--accent);
  border: none;
  color: #fff;
  cursor: pointer;
  font-size: 1rem;
}

.search-results {
  margin-top: 32px;
}

.search-result-item {
  padding: 20px;
  border-bottom: 1px solid var(--border);
}

.search-result-item h3 {
  font-size: 1.05rem;
  margin-bottom: 8px;
}

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

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

/* ========================================
   404 页面
   ======================================== */
.error-page {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 60vh;
  text-align: center;
  padding: 40px 20px;
}

.error-page h1 {
  font-size: 6rem;
  color: var(--secondary);
  font-weight: 800;
}

.error-page h2 {
  font-size: 1.5rem;
  margin: 16px 0;
  color: var(--text);
}

.error-page p {
  color: var(--text-light);
  margin-bottom: 32px;
}

/* ========================================
   内页通用
   ======================================== */
.page-hero {
  background: linear-gradient(135deg, var(--secondary) 0%, var(--bg) 100%);
  padding: 60px 0;
  text-align: center;
}

.page-hero h1 {
  font-family: var(--font-title);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 12px;
}

.page-hero p {
  font-size: 1rem;
  color: var(--text-light);
  max-width: 600px;
  margin: 0 auto;
}

.page-content {
  padding: 48px 0;
}

.content-block {
  margin-bottom: 48px;
}

.content-block h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text);
}

.content-block h3 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text);
}

.content-block p {
  margin-bottom: 16px;
  line-height: 1.8;
  color: var(--text-light);
}

/* 表格 */
.data-table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
  font-size: 0.9rem;
}

.data-table th,
.data-table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.data-table th {
  background: var(--bg);
  font-weight: 600;
  color: var(--text);
}

.data-table tr:hover td {
  background: var(--bg);
}

/* 评分星星 */
.stars {
  color: #FFA000;
  font-size: 0.9rem;
}

/* 标签组 */
.tag-group {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin: 12px 0;
}

.tag {
  padding: 4px 12px;
  background: var(--bg);
  border-radius: 20px;
  font-size: 0.8rem;
  color: var(--text-light);
  border: 1px solid var(--border);
}

/* ========================================
   动画
   ======================================== */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes heartBounce {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.3); }
}

.animate-in {
  animation: slideUp 0.6s ease forwards;
  opacity: 0;
}

.heart-bounce {
  animation: heartBounce 0.4s ease;
}

/* 数字滚动 */
.counter {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent);
}

/* ========================================
   响应式设计
   ======================================== */
@media (max-width: 768px) {
  :root {
    --header-height: 56px;
  }

  .nav-main {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--card);
    flex-direction: column;
    padding: 20px;
    gap: 16px;
    border-bottom: 1px solid var(--border);
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s ease;
  }

  .nav-main.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }

  .nav-toggle {
    display: flex;
  }

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

  .hero-content .subtitle {
    font-size: 1rem;
  }

  .card-grid {
    grid-template-columns: 1fr;
  }

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

  .section {
    padding: 48px 0;
  }

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

  .designer-card {
    flex-direction: column;
    text-align: center;
  }

  .budget-detail {
    grid-template-columns: 1fr;
  }

  .ba-slider {
    aspect-ratio: 4/3;
  }

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

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

  .btn {
    padding: 10px 20px;
    font-size: 0.85rem;
  }

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

/* ========================================
   打印样式
   ======================================== */
@media print {
  .site-header,
  .site-footer,
  .nav-toggle {
    display: none;
  }

  body {
    background: #fff;
    color: #000;
  }
}