/* ============================================
   若见茶舍 - 自然田园风格主样式
   ============================================ */

/* --- CSS 变量（主题色管理）--- */
:root {
  /* 大地色系 - 自然田园 */
  --color-cream:    #F5F0E8;  /* 米白（宣纸色） */
  --color-brown:    #8B7355;  /* 浅棕（木纹） */
  --color-green:    #6B7F5D;  /* 橄榄绿（茶叶） */
  --color-warm:     #E8D5A3;  /* 暖黄（茶汤） */
  --color-tea:      #C4A77D;  /* 淡茶色 */
  --color-dark:     #3E3228;  /* 深褐（文字） */
  --color-light:    #FAFAF5;  /* 极淡米白（背景） */
  --color-accent:   #A67C52;  /* 焦糖色（强调） */
  --color-white:    #FFFFFF;
  --color-border:   #D9CFC1;
  --color-shadow:   rgba(62, 50, 40, 0.08);

  /* 字体 */
  --font-display:   'PingFang SC', 'Microsoft YaHei', 'Noto Serif SC', 'STSong', 'SimSun', serif;
  --font-body:      'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Helvetica Neue', sans-serif;
  --font-mono:      'Courier New', monospace;

  /* 间距 */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 32px;
  --space-xl: 48px;
  --space-2xl: 64px;

  /* 圆角 */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  /* 过渡 */
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
}

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

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

body {
  font-family: var(--font-body);
  color: var(--color-dark);
  background-color: var(--color-light);
  line-height: 1.7;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* --- 宣纸纹理背景 --- */
body::before {
  content: '';
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background-image:
    radial-gradient(ellipse at 20% 50%, rgba(200,180,140,0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(180,200,160,0.06) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 80%, rgba(210,190,150,0.05) 0%, transparent 50%);
  pointer-events: none;
  z-index: -1;
}

a {
  color: inherit;
  text-decoration: none;
}

ul, ol { list-style: none; }

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

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
  font-size: inherit;
}

/* ============================================
   工具类
   ============================================ */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.section {
  padding: var(--space-2xl) 0;
}

.section-title {
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--color-dark);
  text-align: center;
  margin-bottom: var(--space-lg);
  position: relative;
}

/* 标题下装饰线 */
.section-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-green), var(--color-tea));
  margin: var(--space-sm) auto 0;
  border-radius: 2px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 12px 28px;
  border-radius: var(--radius-full);
  font-size: 0.95rem;
  font-weight: 500;
  transition: all var(--transition-base);
  border: 2px solid transparent;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-green), #5A6E4E);
  color: var(--color-white);
  box-shadow: 0 4px 15px rgba(107,127,93,0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(107,127,93,0.4);
}

.btn-outline {
  border-color: var(--color-green);
  color: var(--color-green);
  background: transparent;
}

.btn-outline:hover {
  background: var(--color-green);
  color: var(--color-white);
}

.btn-accent {
  background: var(--color-accent);
  color: var(--color-white);
}

.btn-accent:hover {
  background: #8B6A42;
  transform: translateY(-2px);
}

/* 卡片基础 */
.card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 2px 12px var(--color-shadow);
  transition: all var(--transition-base);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(62,50,40,0.12);
}

/* 页面淡入动画 */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   导航栏
   ============================================ */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(250,250,245,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition-base);
}

.navbar.scrolled {
  box-shadow: 0 2px 20px rgba(62,50,40,0.08);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

/* Logo */
.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-display);
  font-size: 1.4rem;
  color: var(--color-dark);
  font-weight: 700;
}

.nav-logo .logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--color-green), var(--color-tea));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  font-size: 1.2rem;
}

/* 导航链接 */
.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.nav-links a {
  font-size: 0.95rem;
  color: var(--color-dark);
  position: relative;
  padding: 4px 0;
  transition: color var(--transition-fast);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 0;
  height: 2px;
  background: var(--color-green);
  transition: width var(--transition-base);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-green);
}

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

/* 购物车图标 */
.nav-cart {
  position: relative;
  font-size: 1.2rem;
  cursor: pointer;
}

.nav-cart .cart-count {
  position: absolute;
  top: -8px; right: -10px;
  background: var(--color-accent);
  color: var(--color-white);
  font-size: 0.7rem;
  width: 18px; height: 18px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* 汉堡菜单（移动端） */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-dark);
  border-radius: 2px;
  transition: all var(--transition-base);
}

/* ============================================
   Hero 区域（首页）
   ============================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  overflow: hidden;
  background: linear-gradient(
    170deg,
    var(--color-cream) 0%,
    #EDE7D9 40%,
    #DDD2B8 100%
  );
}

/* 水墨晕染背景装饰 */
.hero::before {
  content: '';
  position: absolute;
  top: -30%; left: -20%;
  width: 70vw; height: 70vw;
  background: radial-gradient(circle, rgba(196,167,125,0.15) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -20%; right: -10%;
  width: 50vw; height: 50vw;
  background: radial-gradient(circle, rgba(107,127,93,0.1) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 700px;
  padding: var(--space-lg);
}

.hero-badge {
  display: inline-block;
  padding: 6px 18px;
  background: rgba(107,127,93,0.1);
  color: var(--color-green);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  margin-bottom: var(--space-md);
  letter-spacing: 2px;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: 3.5rem;
  color: var(--color-dark);
  line-height: 1.3;
  margin-bottom: var(--space-md);
}

.hero h1 .highlight {
  background: linear-gradient(135deg, var(--color-green), var(--color-tea));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.1rem;
  color: #7A6E5E;
  line-height: 1.8;
  margin-bottom: var(--space-xl);
}

.hero-actions {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
}

/* ============================================
   快捷入口卡片
   ============================================ */
.quick-entry {
  padding: var(--space-2xl) 0;
  background: var(--color-white);
}

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

.entry-card {
  text-align: center;
  padding: var(--space-xl) var(--space-md);
  border-radius: var(--radius-lg);
  background: var(--color-light);
  transition: all var(--transition-base);
  cursor: pointer;
  border: 1px solid transparent;
}

.entry-card:hover {
  background: var(--color-white);
  border-color: var(--color-border);
  transform: translateY(-4px);
  box-shadow: 0 8px 30px var(--color-shadow);
}

.entry-icon {
  width: 64px; height: 64px;
  margin: 0 auto var(--space-md);
  background: linear-gradient(135deg, var(--color-green), var(--color-tea));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  color: var(--color-white);
}

.entry-card h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  margin-bottom: var(--space-xs);
}

.entry-card p {
  font-size: 0.85rem;
  color: #9A8E7E;
}

/* ============================================
   页脚
   ============================================ */
.footer {
  background: var(--color-dark);
  color: rgba(255,255,255,0.7);
  padding: var(--space-2xl) 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 h3 {
  font-family: var(--font-display);
  color: var(--color-white);
  font-size: 1.3rem;
  margin-bottom: var(--space-sm);
}

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.8;
}

.footer h4 {
  color: var(--color-white);
  font-size: 1rem;
  margin-bottom: var(--space-md);
}

.footer-links li {
  margin-bottom: var(--space-sm);
}

.footer-links a {
  font-size: 0.9rem;
  transition: color var(--transition-fast);
}

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

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: var(--space-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
}

.footer-social {
  display: flex;
  gap: var(--space-md);
}

.footer-social a {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition-fast);
}

.footer-social a:hover {
  background: var(--color-green);
}

/* ============================================
   响应式
   ============================================ */
@media (max-width: 1024px) {
  .entry-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  /* 导航：汉堡菜单 — 需 !important 盖过 HTML 内联 style */
  .nav-toggle {
    display: none;
  }

  .nav-links {
    display: none;
    position: fixed;
    top: 70px; left: 0; right: 0;
    background: rgba(250,250,245,0.98);
    flex-direction: column;
    padding: var(--space-md);
    border-bottom: 1px solid var(--color-border);
  }

  .nav-links.open {
    display: flex;
  }

  .nav-toggle {
    display: flex !important;
  }

  .nav-links:not(.open) {
    display: none !important;
  }

  .nav-links.open {
    display: flex !important;
  }

  .hero h1 {
    font-size: 2.2rem;
  }

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

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

  .footer-bottom {
    flex-direction: column;
    gap: var(--space-md);
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 1.8rem; }
  .entry-grid { grid-template-columns: 1fr; }
}