/* ========================================
   别茶人文化 - 品牌官网全局样式
   白底主导 · 红色点缀 · 深炭灰主操作
   ======================================== */

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

:root {
  --white: #FFFFFF;
  --bg-gray: #F7F7F8;
  --text-dark: #2B2B2B;
  --text-mid: #595959;
  --text-light: #8C8C8C;
  --text-lighter: #BFBFBF;
  --accent: #C8252C;
  --accent-light: #FBE3E4;
  --border: #E8E8E8;
  --border-light: #F0F0F0;
  --tag-bg: #F5F5F5;
  --max-width: 1200px;
  --nav-height: 72px;
  --radius: 12px;
  --shadow-sm: 0 2px 12px rgba(0,0,0,0.04);
  --shadow-md: 0 8px 30px rgba(0,0,0,0.08);
  --shadow-lg: 0 16px 48px rgba(0,0,0,0.12);
  --shadow-hover: 0 12px 40px rgba(0,0,0,0.1);
  --font-serif: "Songti SC", "Noto Serif SC", "STSong", "SimSun", serif;
  --transition: all 0.3s ease;
}

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

body {
  font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
  color: var(--text-dark);
  background: var(--white);
  line-height: 1.6;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; transition: var(--transition); }
img { max-width: 100%; display: block; }
ul { list-style: none; }

/* -------- 通用容器 -------- */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }

/* -------- 导航栏 -------- */
.navbar {
  position: fixed; top: 0; left: 0; right: 0;
  height: var(--nav-height);
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-light);
  z-index: 1000;
  transition: var(--transition);
}
.navbar.scrolled { box-shadow: var(--shadow-sm); }
.nav-inner {
  max-width: var(--max-width); margin: 0 auto;
  height: 100%; padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between;
}
.nav-brand { display: flex; align-items: center; gap: 12px; }
.nav-brand img { width: 40px; height: 40px; border-radius: 8px; }
.nav-brand .brand-name { font-size: 19px; font-weight: 600; letter-spacing: 1px; }
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a {
  font-size: 15px; color: var(--text-mid); font-weight: 400;
  position: relative; padding: 4px 0;
  transition: color 0.2s ease;
}
.nav-links a:hover, .nav-links a.active { color: var(--text-dark); }
.nav-links a.active::after {
  content: ''; position: absolute; bottom: -4px; left: 0; right: 0;
  height: 2px; background: var(--accent); border-radius: 1px;
}

/* 移动端汉堡菜单 */
.nav-toggle { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 8px; }
.nav-toggle span { width: 24px; height: 2px; background: var(--text-dark); border-radius: 1px; transition: var(--transition); }
.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* -------- Hero 区域 -------- */
.hero {
  min-height: 100vh; display: flex; align-items: center;
  position: relative; overflow: hidden;
  background: linear-gradient(180deg, #FAFAFA 0%, #FFFFFF 100%);
  padding-top: var(--nav-height);
}
.hero-text h1, .hero-text .slogan, .section-header h2,
.page-hero h1, .footer-slogan {
  font-family: var(--font-serif);
}
.hero-decoration {
  position: absolute; border-radius: 50%;
  opacity: 0.04; pointer-events: none;
}
.hero-decoration.d1 { width: 600px; height: 600px; background: var(--accent); top: -200px; right: -150px; }
.hero-decoration.d2 { width: 400px; height: 400px; background: var(--text-dark); bottom: -100px; left: -100px; }
.hero-inner {
  max-width: var(--max-width); margin: 0 auto; padding: 0 24px;
  display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center;
  position: relative; z-index: 1;
}
.hero-text .tag-line {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--accent-light); color: var(--accent);
  padding: 6px 16px; border-radius: 20px; font-size: 13px;
  margin-bottom: 24px;
}
.hero-text .tag-line::before { content: ''; width: 6px; height: 6px; background: var(--accent); border-radius: 50%; }
.hero-text h1 {
  font-size: 52px; font-weight: 700; line-height: 1.2;
  margin-bottom: 20px; letter-spacing: 1px;
}
.hero-text h1 .accent { color: var(--accent); }
.hero-text h1.slogan {
  font-size: 64px; font-weight: 800; letter-spacing: 4px;
  display: flex; align-items: baseline; gap: 0; flex-wrap: wrap;
}
.hero-text h1.slogan .slogan-dot {
  font-size: 48px; color: var(--text-lighter); font-weight: 400;
  margin: 0 4px;
}
.hero-text h1.slogan .accent { color: var(--accent); }
.hero-text .subtitle {
  font-size: 18px; color: var(--text-light); line-height: 1.8;
  margin-bottom: 36px; max-width: 480px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.btn-dark {
  background: var(--text-dark); color: #fff;
  padding: 14px 40px; border-radius: 30px; font-size: 15px;
  display: inline-flex; align-items: center; gap: 8px;
  transition: all 0.3s ease; border: none; cursor: pointer;
  box-shadow: 0 4px 16px rgba(43,43,43,0.2);
}
.btn-dark:hover { background: var(--accent); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(200,37,44,0.3); }
.btn-outline-white {
  background: transparent; color: var(--text-dark);
  padding: 13px 38px; border-radius: 30px; font-size: 15px;
  border: 1px solid var(--border); display: inline-flex; align-items: center; gap: 8px;
  transition: var(--transition); cursor: pointer;
}
.btn-outline-white:hover { border-color: var(--text-dark); transform: translateY(-2px); }

.hero-visual { position: relative; }
.hero-card-stack { position: relative; height: 480px; }
.hero-card {
  position: absolute; border-radius: 20px; overflow: hidden;
  box-shadow: var(--shadow-md);
}
.hero-card.main {
  width: 320px; height: 400px; top: 40px; left: 50%; transform: translateX(-50%);
  background: linear-gradient(135deg, #F0F5F0, #E0E8E0);
  display: flex; align-items: center; justify-content: center;
}
.hero-card.main .tea-icon { font-size: 120px; }
.hero-card.sub1 {
  width: 180px; height: 120px; top: 10px; left: 10px;
  background: linear-gradient(135deg, #FAF3E0, #F0E6C8);
  display: flex; align-items: center; justify-content: center; font-size: 48px;
}
.hero-card.sub2 {
  width: 160px; height: 100px; bottom: 20px; right: 0;
  background: linear-gradient(135deg, #F0EDF5, #E0DCE8);
  display: flex; align-items: center; justify-content: center; font-size: 42px;
}
.hero-card.badge {
  width: auto; height: auto; padding: 12px 20px; bottom: 60px; left: 0;
  background: #fff; display: flex; align-items: center; gap: 10px;
  font-size: 14px; font-weight: 600;
}
.hero-card.badge .dot { width: 8px; height: 8px; background: var(--accent); border-radius: 50%; }

/* -------- 通用Section -------- */
.section { padding: 100px 0; }
.section-alt { background: var(--bg-gray); }
.section-header { text-align: center; margin-bottom: 60px; }
.section-header .line {
  width: 40px; height: 3px; background: var(--accent); border-radius: 2px;
  margin: 0 auto 20px;
}
.section-header h2 { font-size: 36px; font-weight: 700; margin-bottom: 12px; }
.section-header p { font-size: 16px; color: var(--text-light); max-width: 560px; margin: 0 auto; }

/* -------- 品牌理念 -------- */
.philosophy-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px;
}
.philosophy-grid.philosophy-grid-4 { grid-template-columns: repeat(4, 1fr); gap: 24px; }
.philosophy-card {
  text-align: center; padding: 48px 32px;
  background: #fff; border-radius: var(--radius);
  border: 1px solid var(--border-light);
  transition: var(--transition);
}
.philosophy-card:hover { border-color: var(--accent); box-shadow: var(--shadow-hover); transform: translateY(-4px); }
.philosophy-card .icon {
  width: 64px; height: 64px; margin: 0 auto 24px;
  display: flex; align-items: center; justify-content: center;
  font-size: 28px; background: var(--bg-gray); border-radius: 50%;
}
.philosophy-card h3 { font-size: 20px; margin-bottom: 12px; }
.philosophy-card p { font-size: 14px; color: var(--text-light); line-height: 1.8; }

/* -------- 服务板块 -------- */
.services-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.service-card {
  padding: 40px 28px; background: #fff; border-radius: var(--radius);
  border: 1px solid var(--border-light); transition: var(--transition);
  position: relative; overflow: hidden;
}
.service-card::before {
  content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 3px;
  background: var(--accent); transform: scaleX(0); transition: var(--transition); transform-origin: left;
}
.service-card:hover::before { transform: scaleX(1); }
.service-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }
.service-card .num {
  font-size: 14px; color: var(--text-lighter); font-weight: 600; margin-bottom: 16px;
}
.service-card .emoji { font-size: 36px; margin-bottom: 20px; }
.service-card h3 { font-size: 18px; margin-bottom: 10px; }
.service-card p { font-size: 14px; color: var(--text-light); line-height: 1.7; }

/* -------- 产品精选 -------- */
.products-showcase {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px;
}
.product-show-card {
  background: #fff; border-radius: var(--radius); overflow: hidden;
  border: 1px solid var(--border-light); transition: var(--transition);
}
.product-show-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-6px); }
.product-show-card .img-area {
  height: 240px; display: flex; align-items: center; justify-content: center;
  font-size: 72px; position: relative;
}
.img-tea { background: linear-gradient(135deg, #F0F5F0, #E0E8E0); }
.img-ware { background: linear-gradient(135deg, #FAF3E0, #F0E6C8); }
.img-cultural { background: linear-gradient(135deg, #F0EDF5, #E0DCE8); }
.product-show-card .self-tag {
  position: absolute; top: 12px; left: 12px;
  background: rgba(255,255,255,0.9); color: var(--accent);
  font-size: 12px; padding: 4px 12px; border-radius: 6px;
}
.product-show-card .card-body { padding: 20px; }
.product-show-card .card-body h3 { font-size: 16px; margin-bottom: 8px; }
.product-show-card .card-body .desc { font-size: 13px; color: var(--text-light); margin-bottom: 12px; line-height: 1.6; }
.product-show-card .card-body .price-row { display: flex; align-items: baseline; justify-content: space-between; }
.product-show-card .card-body .price { color: var(--accent); font-size: 22px; font-weight: 700; }
.product-show-card .card-body .price .symbol { font-size: 14px; }
.product-show-card .card-body .original { font-size: 13px; color: var(--text-lighter); text-decoration: line-through; }

/* -------- 茶文化理念 -------- */
.culture-banner {
  display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center;
}
.culture-banner .visual {
  height: 400px; border-radius: 20px; overflow: hidden;
  background: linear-gradient(135deg, #F0F5F0, #E0E8E0);
  display: flex; align-items: center; justify-content: center; font-size: 120px;
  position: relative;
}
.culture-banner .visual::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(0,0,0,0.05));
}
.culture-banner .text h2 { font-size: 32px; margin-bottom: 20px; line-height: 1.3; }
.culture-banner .text h2 .accent { color: var(--accent); }
.culture-banner .text p { font-size: 15px; color: var(--text-light); line-height: 2; margin-bottom: 16px; }
.culture-features { display: flex; gap: 32px; margin-top: 28px; }
.culture-features .feature .label { font-size: 28px; font-weight: 700; color: var(--text-dark); }
.culture-features .feature .desc { font-size: 13px; color: var(--text-light); }

/* -------- 公众号引导 -------- */
.wechat-section {
  text-align: center; position: relative; overflow: hidden;
  background: #fff;
  color: var(--text-dark); padding: 72px 40px; border-radius: 24px;
  max-width: 760px; margin: 0 auto;
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
}
.wechat-section::before {
  content: ''; position: absolute; top: -60px; right: -60px;
  width: 200px; height: 200px; border-radius: 50%;
  background: radial-gradient(circle, rgba(200,37,44,0.06), transparent 70%);
  pointer-events: none;
}
.wechat-section::after {
  content: ''; position: absolute; bottom: -80px; left: -40px;
  width: 240px; height: 240px; border-radius: 50%;
  background: radial-gradient(circle, rgba(43,43,43,0.04), transparent 70%);
  pointer-events: none;
}
.wechat-section .wc-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--accent-light); color: var(--accent);
  padding: 6px 18px; border-radius: 20px; font-size: 13px;
  margin-bottom: 24px;
  position: relative; z-index: 1;
}
.wechat-section .wc-badge::before { content: ''; width: 6px; height: 6px; background: var(--accent); border-radius: 50%; }
.wechat-section h2 { font-size: 30px; margin-bottom: 12px; position: relative; z-index: 1; font-weight: 700; }
.wechat-section > p { font-size: 15px; color: var(--text-light); margin-bottom: 36px; position: relative; z-index: 1; }
.wechat-qr-wrapper {
  display: inline-block; position: relative; z-index: 1;
  padding: 10px; border-radius: 20px;
  background: var(--bg-gray);
  border: 1px solid var(--border-light);
}
.wechat-qr {
  width: 200px; height: 200px; background: #fff; border-radius: 14px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.06);
  display: flex; align-items: center; justify-content: center; overflow: hidden;
}
.wechat-qr img { width: 100%; height: 100%; object-fit: contain; border-radius: 10px; }
.wechat-tips {
  display: flex; justify-content: center; gap: 32px; margin-top: 32px;
  position: relative; z-index: 1; flex-wrap: wrap;
}
.wechat-tips .wc-tip {
  display: flex; align-items: center; gap: 8px;
  font-size: 14px; color: var(--text-light);
}
.wechat-tips .wc-tip .wc-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }
.wechat-section .scan-tip { margin-top: 20px; font-size: 13px; color: var(--text-lighter); position: relative; z-index: 1; }

/* -------- 页脚 -------- */
.footer {
  background: #1A1A1A; color: rgba(255,255,255,0.6);
  padding: 64px 0 0;
}
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px;
  padding-bottom: 48px; border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-brand { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.footer-brand img { width: 36px; height: 36px; border-radius: 6px; }
.footer-brand .name { font-size: 18px; font-weight: 600; color: #fff; letter-spacing: 1px; }
.footer-desc { font-size: 14px; line-height: 1.8; max-width: 320px; }
.footer-slogan {
  display: block; font-size: 18px; font-weight: 600; color: #fff;
  margin-bottom: 8px; letter-spacing: 2px;
}
.footer-col h4 { font-size: 15px; color: #fff; margin-bottom: 20px; font-weight: 500; }
.footer-col ul li { margin-bottom: 12px; }
.footer-col ul li a { font-size: 14px; transition: var(--transition); }
.footer-col ul li a:hover { color: var(--accent); }
.footer-contact li { font-size: 14px; margin-bottom: 12px; display: flex; align-items: flex-start; gap: 8px; }
.footer-contact li .icon { font-size: 16px; flex-shrink: 0; }
.footer-bottom {
  padding: 24px 0; display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 12px;
}
.footer-bottom .icp { font-size: 13px; }
.footer-bottom .icp a { color: rgba(255,255,255,0.6); }
.footer-bottom .icp a:hover { color: var(--accent); }
.footer-bottom .copyright { font-size: 13px; }

/* -------- 关于我们页面 -------- */
.page-hero {
  padding: calc(var(--nav-height) + 60px) 0 60px;
  background: var(--bg-gray); text-align: center;
}
.page-hero .line { width: 40px; height: 3px; background: var(--accent); border-radius: 2px; margin: 0 auto 20px; }
.page-hero h1 { font-size: 40px; font-weight: 700; margin-bottom: 12px; }
.page-hero p { font-size: 16px; color: var(--text-light); }

.story-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.story-text h2 { font-size: 28px; margin-bottom: 20px; line-height: 1.3; }
.story-text p { font-size: 15px; color: var(--text-mid); line-height: 2; margin-bottom: 16px; }
.story-visual {
  height: 360px; border-radius: 20px; overflow: hidden;
  background: linear-gradient(135deg, #FAF3E0, #F0E6C8);
  display: flex; align-items: center; justify-content: center; font-size: 100px;
}

.timeline { position: relative; max-width: 800px; margin: 0 auto; }
.timeline::before {
  content: ''; position: absolute; left: 0; top: 0; bottom: 0;
  width: 2px; background: var(--border);
}
.timeline-item { position: relative; padding-left: 40px; padding-bottom: 40px; }
.timeline-item:last-child { padding-bottom: 0; }
.timeline-item::before {
  content: ''; position: absolute; left: -5px; top: 4px;
  width: 12px; height: 12px; background: var(--accent); border-radius: 50%;
  border: 3px solid #fff; box-shadow: 0 0 0 2px var(--accent);
}
.timeline-item .year { font-size: 18px; font-weight: 700; color: var(--accent); margin-bottom: 8px; }
.timeline-item h3 { font-size: 16px; margin-bottom: 8px; }
.timeline-item p { font-size: 14px; color: var(--text-light); line-height: 1.8; }

.values-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.value-card { text-align: center; padding: 40px 28px; border: 1px solid var(--border-light); border-radius: var(--radius); transition: var(--transition); }
.value-card:hover { border-color: var(--accent); box-shadow: var(--shadow-hover); transform: translateY(-4px); }
.value-card .emoji { font-size: 40px; margin-bottom: 16px; }
.value-card h3 { font-size: 18px; margin-bottom: 10px; }
.value-card p { font-size: 14px; color: var(--text-light); line-height: 1.8; }

/* -------- 产品页面 -------- */
.product-categories { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.category-card {
  border-radius: 20px; overflow: hidden; border: 1px solid var(--border-light);
  transition: var(--transition); background: #fff;
}
.category-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-6px); }
.category-card .cat-banner {
  height: 200px; display: flex; align-items: center; justify-content: center;
  font-size: 72px; position: relative;
}
.category-card .cat-body { padding: 28px; }
.category-card .cat-body h3 { font-size: 20px; margin-bottom: 8px; }
.category-card .cat-body .cat-desc { font-size: 14px; color: var(--text-light); margin-bottom: 16px; line-height: 1.7; }
.category-card .cat-body .cat-items { display: flex; flex-wrap: wrap; gap: 8px; }
.category-card .cat-body .cat-tag {
  font-size: 12px; padding: 4px 12px; background: var(--tag-bg);
  color: var(--text-light); border-radius: 6px;
}

/* -------- 茶文化页面 -------- */
.tea-types-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.tea-type-card {
  border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border-light);
  transition: var(--transition); background: #fff;
}
.tea-type-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }
.tea-type-card .type-header {
  height: 140px; display: flex; align-items: center; justify-content: center; font-size: 56px;
}
.tea-type-card .type-body { padding: 24px; }
.tea-type-card .type-body h3 { font-size: 18px; margin-bottom: 6px; }
.tea-type-card .type-body .en-name { font-size: 13px; color: var(--text-lighter); margin-bottom: 12px; }
.tea-type-card .type-body p { font-size: 14px; color: var(--text-light); line-height: 1.7; }

.culture-quotes { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.quote-card {
  padding: 36px 32px; background: #fff; border-radius: var(--radius);
  border-left: 3px solid var(--accent); border-top: 1px solid var(--border-light);
  border-right: 1px solid var(--border-light); border-bottom: 1px solid var(--border-light);
  transition: var(--transition);
}
.quote-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); }
.quote-card .quote-text { font-size: 16px; line-height: 1.8; color: var(--text-mid); margin-bottom: 16px; }
.quote-card .quote-author { font-size: 14px; color: var(--text-light); }
.quote-card .quote-author .author-name { color: var(--text-dark); font-weight: 500; }

/* -------- 联系我们页面 -------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; }
.contact-info h2 { font-size: 28px; margin-bottom: 24px; }
.contact-info .info-item {
  display: flex; gap: 16px; padding: 20px 0;
  border-bottom: 1px solid var(--border-light);
}
.contact-info .info-item .icon {
  width: 48px; height: 48px; flex-shrink: 0;
  background: var(--bg-gray); border-radius: 12px;
  display: flex; align-items: center; justify-content: center; font-size: 22px;
}
.contact-info .info-item .content h4 { font-size: 14px; color: var(--text-light); margin-bottom: 4px; }
.contact-info .info-item .content p { font-size: 16px; color: var(--text-dark); }

.contact-form { background: #fff; padding: 40px; border-radius: var(--radius); border: 1px solid var(--border-light); }
.contact-form h2 { font-size: 24px; margin-bottom: 8px; }
.contact-form .form-desc { font-size: 14px; color: var(--text-light); margin-bottom: 28px; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 14px; margin-bottom: 8px; color: var(--text-mid); }
.form-group input, .form-group textarea, .form-group select {
  width: 100%; padding: 12px 16px; border: 1px solid var(--border);
  border-radius: 8px; font-size: 15px; font-family: inherit;
  transition: var(--transition); background: var(--bg-gray);
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
  outline: none; border-color: var(--accent); background: #fff;
}
.form-group textarea { resize: vertical; min-height: 120px; }
.form-submit {
  width: 100%; background: var(--text-dark); color: #fff; border: none;
  padding: 14px; border-radius: 30px; font-size: 15px; cursor: pointer;
  transition: var(--transition);
}
.form-submit:hover { background: var(--accent); }

/* -------- 图标 -------- */
.icon { display: inline-block; vertical-align: middle; flex-shrink: 0; }

/* -------- 动画 -------- */
.fade-in { opacity: 0; transform: translateY(30px); transition: opacity 0.6s ease, transform 0.6s ease; }
.fade-in.visible { opacity: 1; transform: translateY(0); }
.fade-in.delay-1 { transition-delay: 0.1s; }
.fade-in.delay-2 { transition-delay: 0.2s; }
.fade-in.delay-3 { transition-delay: 0.3s; }

/* -------- 响应式 -------- */
@media (max-width: 968px) {
  .hero-inner { grid-template-columns: 1fr; gap: 40px; text-align: center; }
  .hero-text h1 { font-size: 36px; }
  .hero-text h1.slogan { font-size: 40px; letter-spacing: 2px; }
  .hero-text h1.slogan .slogan-dot { font-size: 32px; }
  .hero-text .subtitle { margin: 0 auto 36px; }
  .hero-actions { justify-content: center; }
  .hero-visual { display: none; }

  .philosophy-grid, .services-grid, .products-showcase,
  .tea-types-grid, .product-categories, .values-grid { grid-template-columns: 1fr; }
  .philosophy-grid.philosophy-grid-4 { grid-template-columns: repeat(2, 1fr); }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .culture-banner, .story-grid, .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .culture-quotes { grid-template-columns: 1fr; }

  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }

  .section { padding: 60px 0; }
  .section-header h2 { font-size: 28px; }
}

@media (max-width: 640px) {
  .nav-links {
    position: fixed; top: var(--nav-height); left: 0; right: 0;
    background: #fff; flex-direction: column; padding: 24px;
    gap: 20px; border-bottom: 1px solid var(--border);
    transform: translateY(-150%); transition: var(--transition);
  }
  .nav-links.open { transform: translateY(0); }
  .nav-toggle { display: flex; }

  .services-grid { grid-template-columns: 1fr; }
  .philosophy-grid.philosophy-grid-4 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }

  .hero-text h1 { font-size: 28px; }
  .hero-text h1.slogan { font-size: 30px; letter-spacing: 1px; }
  .hero-text h1.slogan .slogan-dot { font-size: 24px; }
  .section-header h2 { font-size: 24px; }
  .page-hero h1 { font-size: 28px; }
  .wechat-section { padding: 48px 24px; }
  .wechat-section h2 { font-size: 24px; }
  .wechat-tips { gap: 16px; }
}