/* ==========================================================================
   狗粮.中国（狗粮.中国）官网样式
   设计系统：CSS 自定义属性统一管理设计令牌
   ========================================================================== */

/* ---------- 1. 设计令牌（Design Tokens） ---------- */
:root {
  /* 品牌色：暖橙琥珀系，传递新鲜/营养/温暖感 */
  --color-primary: #E8602C;          /* 品牌主色：活力橙 */
  --color-primary-dark: #C24516;     /* 主色深阶：悬停/强调 */
  --color-primary-light: #FFE9DF;    /* 主色浅阶：背景分区 */
  --color-accent: #2B7A3D;           /* 辅色：天然绿（新鲜/天然） */
  --color-accent-light: #E9F4EB;

  /* 中性色 */
  --color-bg: #FFFCF6;               /* 奶油色背景 */
  --color-surface: #FFFFFF;          /* 卡片表面 */
  --color-text: #2A2520;             /* 主文字（暖深棕，对比度≥7:1） */
  --color-text-secondary: #6B6259;   /* 次级文字 */
  --color-text-light: #9A9088;       /* 辅助文字 */
  --color-border: #EAE3D8;           /* 边框 */
  --color-footer: #241E18;           /* 页脚深底 */
  --color-footer-text: #C9BFAE;

  /* 字体 */
  --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Hiragino Sans GB", sans-serif;

  /* 圆角与阴影 */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --shadow-sm: 0 1px 3px rgba(42, 37, 32, 0.08);
  --shadow-md: 0 6px 18px rgba(42, 37, 32, 0.08);
  --shadow-lg: 0 16px 40px rgba(42, 37, 32, 0.12);

  /* 布局 */
  --container: 1200px;
  --nav-height: 72px;
}

/* ---------- 2. 基础重置 ---------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-height) + 16px); /* 锚点跳转避开固定导航 */
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--color-primary-dark);
}

/* 可访问性：可见焦点样式 */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}

/* 尊重用户的减少动效偏好 */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

/* ---------- 3. 布局工具 ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 72px 0;
}

.section--alt {
  background: var(--color-primary-light);
}

.section--alt2 {
  background: var(--color-accent-light);
}

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 48px;
}

.section-header h2 {
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  font-weight: 700;
  margin-bottom: 14px;
  letter-spacing: 0.02em;
}

.section-header p {
  color: var(--color-text-secondary);
  font-size: 1.02rem;
}

.eyebrow {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--color-primary);
  text-transform: uppercase;
  margin-bottom: 10px;
}

/* ---------- 4. 导航栏 ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255, 252, 246, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow 0.3s ease;
}

.site-header.scrolled {
  box-shadow: var(--shadow-md);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-height);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text);
}

.nav-logo:hover {
  color: var(--color-primary);
}

.nav-logo-icon {
  width: 38px;
  height: 38px;
  flex-shrink: 0;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
}

.nav-menu a {
  display: inline-block;
  padding: 8px 14px;
  color: var(--color-text);
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: background 0.2s ease, color 0.2s ease;
}

.nav-menu a:hover,
.nav-menu a.active {
  color: var(--color-primary);
  background: var(--color-primary-light);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-left: 12px;
  padding: 10px 22px;
  background: var(--color-primary);
  color: #fff !important;
  border-radius: 999px;
  font-weight: 600;
  transition: background 0.2s ease, transform 0.15s ease;
}

.nav-cta:hover {
  background: var(--color-primary-dark);
  transform: translateY(-1px);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  margin: 0 auto;
  background: var(--color-text);
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- 5. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  border: 2px solid transparent;
  border-radius: 999px;
  font-size: 1rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn--primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 6px 18px rgba(232, 96, 44, 0.35);
}

.btn--primary:hover {
  background: var(--color-primary-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(232, 96, 44, 0.4);
}

.btn--secondary {
  background: transparent;
  border-color: var(--color-primary);
  color: var(--color-primary);
}

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

.btn--ghost {
  background: rgba(255, 255, 255, 0.9);
  color: var(--color-text);
  box-shadow: var(--shadow-sm);
}

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

.btn--lg {
  padding: 16px 40px;
  font-size: 1.05rem;
}

/* ---------- 6. Hero 区 ---------- */
.hero {
  position: relative;
  padding: calc(var(--nav-height) + 72px) 0 88px;
  background:
    radial-gradient(ellipse at 85% 15%, rgba(232, 96, 44, 0.10) 0%, transparent 55%),
    radial-gradient(ellipse at 10% 90%, rgba(43, 122, 61, 0.08) 0%, transparent 50%),
    var(--color-bg);
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 56px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-accent);
  box-shadow: var(--shadow-sm);
  margin-bottom: 24px;
}

.hero h1 {
  font-size: clamp(2rem, 4.4vw, 3.2rem);
  line-height: 1.25;
  font-weight: 800;
  letter-spacing: 0.01em;
  margin-bottom: 22px;
}

.hero h1 .hl {
  color: var(--color-primary);
  position: relative;
  white-space: nowrap;
}

.hero-lead {
  font-size: 1.12rem;
  color: var(--color-text-secondary);
  margin-bottom: 34px;
  max-width: 520px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 44px;
}

.hero-trust {
  display: flex;
  flex-wrap: wrap;
  gap: 28px;
  padding-top: 28px;
  border-top: 1px solid var(--color-border);
}

.hero-trust li {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.92rem;
  color: var(--color-text-secondary);
  font-weight: 500;
}

.hero-trust svg {
  flex-shrink: 0;
  color: var(--color-accent);
}

.hero-visual {
  position: relative;
}

.hero-image {
  width: 100%;
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  background: linear-gradient(135deg, #F6D9C3 0%, #F0B98E 100%);
}

.hero-card {
  position: absolute;
  right: -28px;
  bottom: -28px;
  background: var(--color-surface);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 16px;
  max-width: 260px;
}

.hero-card-icon {
  width: 48px;
  height: 48px;
  flex-shrink: 0;
  border-radius: var(--radius-sm);
  background: var(--color-accent-light);
  color: var(--color-accent);
}

.hero-card-text strong {
  display: block;
  font-size: 1.05rem;
  font-weight: 700;
}

.hero-card-text span {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
}

/* ---------- 7. 数据统计条 ---------- */
.stats {
  background: var(--color-footer);
  color: #fff;
  padding: 44px 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}

.stat-num {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 800;
  color: #FFB084;
  line-height: 1.2;
}

.stat-label {
  font-size: 0.92rem;
  color: var(--color-footer-text);
}

/* ---------- 8. 通用网格与卡片 ---------- */
.grid {
  display: grid;
  gap: 28px;
}

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

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

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

/* ---------- 9. 品牌简介区 ---------- */
.about-feature {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

.about-feature h2 {
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  font-weight: 700;
  margin-bottom: 18px;
}

.about-feature p {
  color: var(--color-text-secondary);
  margin-bottom: 14px;
}

.feature-list {
  list-style: none;
  margin: 24px 0 32px;
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 10px 0;
  font-weight: 500;
}

.feature-list svg {
  flex-shrink: 0;
  margin-top: 4px;
  color: var(--color-primary);
}

.about-visual {
  position: relative;
}

.about-visual-main {
  width: 100%;
  aspect-ratio: 5 / 4;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  background: linear-gradient(135deg, #F3C9A8 0%, #E89B63 100%);
}

.about-visual-badge {
  position: absolute;
  left: -24px;
  top: 32px;
  background: var(--color-surface);
  border-radius: var(--radius-md);
  padding: 18px 22px;
  box-shadow: var(--shadow-lg);
  max-width: 210px;
}

.about-visual-badge strong {
  display: block;
  font-size: 1.4rem;
  color: var(--color-primary);
  font-weight: 800;
}

.about-visual-badge span {
  font-size: 0.88rem;
  color: var(--color-text-secondary);
}

/* ---------- 10. 产品展示 ---------- */
.product-card {
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.product-card-media {
  aspect-ratio: 4 / 3;
  background: linear-gradient(135deg, #F5D3BC 0%, #EB9E66 100%);
  position: relative;
}

.product-card-media svg {
  width: 100%;
  height: 100%;
}

.product-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  padding: 4px 12px;
  background: rgba(255, 252, 246, 0.95);
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--color-primary);
}

.product-card-body {
  padding: 22px 22px 26px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.product-card-body h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.product-card-body h3 a {
  color: var(--color-text);
}

.product-card-body h3 a:hover {
  color: var(--color-primary);
}

.product-card-desc {
  font-size: 0.92rem;
  color: var(--color-text-secondary);
  margin-bottom: 16px;
  flex: 1;
}

.product-card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  background: var(--color-primary-light);
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-primary-dark);
}

.chip--green {
  background: var(--color-accent-light);
  color: var(--color-accent);
}

.product-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid var(--color-border);
}

.product-price {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--color-primary);
}

.product-price small {
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--color-text-light);
}

.product-link {
  font-weight: 600;
  font-size: 0.92rem;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

/* 产品分类导航条 */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin-bottom: 40px;
}

.filter-btn {
  padding: 9px 22px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  font-family: inherit;
  cursor: pointer;
  transition: all 0.2s ease;
}

.filter-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.filter-btn.is-active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}

/* ---------- 11. 主推产品（首页大卡） ---------- */
.feature-product {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

.feature-product-media {
  width: 100%;
  aspect-ratio: 1 / 1;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  background: linear-gradient(160deg, #F8E1C9 0%, #EEA36D 60%, #D97A3F 100%);
}

.feature-product h2 {
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  font-weight: 700;
  margin-bottom: 18px;
}

.feature-product h2 .hl { color: var(--color-primary); }

.spec-row {
  display: flex;
  gap: 14px;
  margin: 22px 0 28px;
}

.spec-box {
  flex: 1;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px;
  text-align: center;
}

.spec-box strong {
  display: block;
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--color-primary);
}

.spec-box span {
  font-size: 0.82rem;
  color: var(--color-text-secondary);
}

/* ---------- 12. 新闻卡片 ---------- */
.news-card {
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.news-card-media {
  aspect-ratio: 16 / 9;
  background: linear-gradient(135deg, #E8D3BC 0%, #C9A07E 100%);
  position: relative;
}

.news-card-media svg { width: 100%; height: 100%; }

.news-card-body {
  padding: 22px 22px 26px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.news-card-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.8rem;
  color: var(--color-text-light);
  margin-bottom: 10px;
}

.news-card-meta .news-cat {
  color: var(--color-primary);
  font-weight: 600;
}

.news-card-body h3 {
  font-size: 1.08rem;
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: 10px;
}

.news-card-body h3 a { color: var(--color-text); }
.news-card-body h3 a:hover { color: var(--color-primary); }

.news-card-excerpt {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  flex: 1;
  margin-bottom: 16px;
}

/* ---------- 13. CTA 横幅 ---------- */
.cta-banner {
  background: linear-gradient(120deg, #E8602C 0%, #D9501E 55%, #C24516 100%);
  border-radius: var(--radius-lg);
  padding: 56px 48px;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: "";
  position: absolute;
  right: -60px;
  top: -60px;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
}

.cta-banner::after {
  content: "";
  position: absolute;
  right: 80px;
  bottom: -90px;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
}

.cta-banner-text { position: relative; z-index: 1; }

.cta-banner h2 {
  font-size: clamp(1.4rem, 2.6vw, 1.9rem);
  font-weight: 700;
  margin-bottom: 8px;
}

.cta-banner p {
  opacity: 0.92;
  max-width: 520px;
}

.cta-banner .btn--ghost {
  position: relative;
  z-index: 1;
}

/* ---------- 14. 页脚 ---------- */
.site-footer {
  background: var(--color-footer);
  color: var(--color-footer-text);
  padding: 64px 0 28px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 40px;
  margin-bottom: 48px;
}

.footer-brand .nav-logo {
  color: #fff;
  margin-bottom: 16px;
}

.footer-brand p {
  font-size: 0.92rem;
  line-height: 1.8;
  max-width: 320px;
}

.footer-col h4 {
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 18px;
}

.footer-col ul {
  list-style: none;
}

.footer-col li {
  margin-bottom: 12px;
}

.footer-col a {
  color: var(--color-footer-text);
  font-size: 0.92rem;
}

.footer-col a:hover {
  color: #FFB084;
}

.footer-contact li {
  display: flex;
  gap: 10px;
  font-size: 0.92rem;
  align-items: flex-start;
}

.footer-contact svg {
  flex-shrink: 0;
  margin-top: 3px;
  color: #FFB084;
}

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 0.85rem;
}

.footer-bottom a { color: var(--color-footer-text); }
.footer-bottom a:hover { color: #FFB084; }

/* ---------- 15. 面包屑 ---------- */
.breadcrumb {
  padding: calc(var(--nav-height) + 40px) 0 0;
  font-size: 0.88rem;
  color: var(--color-text-light);
}

.breadcrumb ol {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.breadcrumb li::after {
  content: "/";
  margin-left: 8px;
  color: var(--color-text-light);
}

.breadcrumb li:last-child::after { content: none; }

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

/* ---------- 16. 页面横幅 ---------- */
.page-hero {
  padding: 56px 0 64px;
  background:
    radial-gradient(ellipse at 80% 20%, rgba(232, 96, 44, 0.09) 0%, transparent 55%),
    var(--color-bg);
}

.page-hero h1 {
  font-size: clamp(1.8rem, 3.6vw, 2.6rem);
  font-weight: 800;
  margin-bottom: 14px;
}

.page-hero p {
  color: var(--color-text-secondary);
  font-size: 1.05rem;
  max-width: 620px;
}

/* ---------- 17. 产品详情页 ---------- */
.product-detail-top {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
  padding: 16px 0 64px;
}

.product-detail-media {
  width: 100%;
  aspect-ratio: 1 / 1;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  background: linear-gradient(160deg, #F8E1C9 0%, #EEA36D 60%, #D97A3F 100%);
  position: sticky;
  top: calc(var(--nav-height) + 16px);
}

.product-detail-info h1 {
  font-size: clamp(1.7rem, 3.2vw, 2.3rem);
  font-weight: 800;
  margin-bottom: 14px;
}

.product-detail-sub {
  font-size: 1.1rem;
  color: var(--color-text-secondary);
  margin-bottom: 22px;
}

.product-detail-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 26px;
}

.detail-price {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 26px;
}

.detail-price-main {
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-primary);
}

.detail-price-unit {
  font-size: 0.92rem;
  color: var(--color-text-light);
}

.detail-actions {
  display: flex;
  gap: 14px;
  margin-bottom: 34px;
}

.detail-meta-list {
  list-style: none;
  border-top: 1px solid var(--color-border);
}

.detail-meta-list li {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 13px 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.94rem;
}

.detail-meta-list li span:first-child {
  color: var(--color-text-secondary);
  flex-shrink: 0;
}

.detail-meta-list li span:last-child {
  font-weight: 600;
  text-align: right;
}

/* 详情内容区 */
.product-detail-body { padding-bottom: 72px; }

.detail-block {
  margin-bottom: 56px;
}

.detail-block h2 {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.detail-block h2::before {
  content: "";
  width: 5px;
  height: 22px;
  background: var(--color-primary);
  border-radius: 3px;
  flex-shrink: 0;
}

.detail-block p {
  color: var(--color-text-secondary);
  margin-bottom: 14px;
}

.ingredient-list {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px 28px;
  margin: 20px 0;
}

.ingredient-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.95rem;
}

.ingredient-list svg {
  flex-shrink: 0;
  color: var(--color-accent);
}

/* 喂食指南表 */
.feeding-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-surface);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  font-size: 0.95rem;
  margin-top: 18px;
}

.feeding-table th,
.feeding-table td {
  padding: 14px 18px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.feeding-table th {
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
  font-weight: 700;
}

.feeding-table tr:last-child td { border-bottom: none; }

/* ---------- 18. 关于我们 ---------- */
.timeline {
  position: relative;
  max-width: 760px;
  margin: 0 auto;
  padding-left: 32px;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background: linear-gradient(to bottom, var(--color-primary), var(--color-primary-light));
}

.timeline-item {
  position: relative;
  padding-bottom: 36px;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -32px;
  top: 6px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--color-primary);
  border: 3px solid var(--color-bg);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}

.timeline-item-year {
  font-size: 0.92rem;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 4px;
}

.timeline-item h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.timeline-item p {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
}

.advantage-card {
  padding: 32px 26px;
  text-align: center;
}

.advantage-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 18px;
  border-radius: 50%;
  background: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
}

.advantage-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.advantage-card p {
  font-size: 0.92rem;
  color: var(--color-text-secondary);
}

.cert-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.cert-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px 18px;
  text-align: center;
  box-shadow: var(--shadow-sm);
}

.cert-item svg {
  width: 40px;
  height: 40px;
  color: var(--color-accent);
  margin-bottom: 14px;
}

.cert-item strong {
  display: block;
  font-size: 0.98rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.cert-item span {
  font-size: 0.82rem;
  color: var(--color-text-light);
}

/* ---------- 19. 新闻列表 / 文章 ---------- */
.news-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 48px;
  align-items: start;
}

.news-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.news-list-card {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 0;
  overflow: hidden;
}

.news-list-card-media {
  aspect-ratio: 4 / 3;
  background: linear-gradient(135deg, #E8D3BC 0%, #C9A07E 100%);
}

.news-list-card-body {
  padding: 22px 24px;
}

.news-list-card-body h2 {
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: 8px;
}

.news-list-card-body h2 a { color: var(--color-text); }
.news-list-card-body h2 a:hover { color: var(--color-primary); }

.news-list-card-body p {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  margin-bottom: 12px;
}

.news-sidebar {
  position: sticky;
  top: calc(var(--nav-height) + 24px);
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.sidebar-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-sm);
}

.sidebar-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}

.hot-list {
  list-style: none;
}

.hot-list li {
  display: flex;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px dashed var(--color-border);
}

.hot-list li:last-child { border-bottom: none; }

.hot-rank {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  border-radius: var(--radius-sm);
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-size: 0.78rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hot-list a {
  font-size: 0.9rem;
  color: var(--color-text);
  line-height: 1.5;
  font-weight: 500;
}

.hot-list a:hover { color: var(--color-primary); }

/* 文章详情 */
.article {
  max-width: 820px;
  margin: 0 auto;
  padding: 0 0 72px;
}

.article-head {
  text-align: center;
  margin-bottom: 40px;
}

.article-head h1 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 800;
  line-height: 1.45;
  margin-bottom: 16px;
}

.article-meta {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.88rem;
  color: var(--color-text-light);
}

.article-cover {
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-md);
  margin-bottom: 40px;
  background: linear-gradient(135deg, #E8D3BC 0%, #C9A07E 100%);
}

.article-body h2 {
  font-size: 1.3rem;
  font-weight: 700;
  margin: 36px 0 16px;
}

.article-body h3 {
  font-size: 1.08rem;
  font-weight: 700;
  margin: 28px 0 12px;
}

.article-body p {
  color: var(--color-text-secondary);
  margin-bottom: 16px;
}

.article-body ul,
.article-body ol {
  margin: 14px 0 18px 1.4em;
  color: var(--color-text-secondary);
}

.article-body li {
  margin-bottom: 8px;
}

.article-body blockquote {
  margin: 22px 0;
  padding: 16px 22px;
  background: var(--color-accent-light);
  border-left: 4px solid var(--color-accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--color-text);
  font-weight: 500;
}

.article-body strong { color: var(--color-text); }

.article-nav {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 48px;
  padding-top: 28px;
  border-top: 1px solid var(--color-border);
  font-size: 0.92rem;
}

.article-nav a {
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* 分页 */
.pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 44px;
}

.pagination a,
.pagination span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text-secondary);
  font-weight: 600;
  font-size: 0.92rem;
}

.pagination a:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.pagination .current {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}

/* ---------- 20. 联系我们 ---------- */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 48px;
  align-items: start;
}

.contact-info-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 32px;
  box-shadow: var(--shadow-sm);
}

.contact-info-card h2 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.contact-info-card > p {
  color: var(--color-text-secondary);
  margin-bottom: 26px;
  font-size: 0.95rem;
}

.contact-info-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.contact-info-list li {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.contact-info-icon {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  border-radius: var(--radius-sm);
  background: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
}

.contact-info-list strong {
  display: block;
  font-size: 0.98rem;
  margin-bottom: 2px;
}

.contact-info-list span {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
}

.contact-form {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 32px;
  box-shadow: var(--shadow-sm);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin-bottom: 18px;
}

.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  font-size: 0.92rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.form-group .req { color: var(--color-primary); }

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 11px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-family: inherit;
  background: var(--color-bg);
  color: var(--color-text);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(232, 96, 44, 0.12);
  outline: none;
}

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

.form-error {
  display: none;
  color: #C62828;
  font-size: 0.82rem;
  margin-top: 4px;
}

.form-group.has-error input,
.form-group.has-error textarea {
  border-color: #C62828;
}

.form-group.has-error .form-error {
  display: block;
}

.form-success {
  display: none;
  background: var(--color-accent-light);
  border: 1px solid var(--color-accent);
  color: #1E5B2E;
  border-radius: var(--radius-sm);
  padding: 14px 18px;
  font-size: 0.92rem;
  font-weight: 600;
  margin-bottom: 18px;
}

.form-success.is-visible { display: block; }

/* 地图占位 */
.map-placeholder {
  width: 100%;
  aspect-ratio: 21 / 9;
  border-radius: var(--radius-md);
  margin-top: 24px;
  background:
    linear-gradient(135deg, rgba(232, 96, 44, 0.06) 0%, transparent 60%),
    repeating-linear-gradient(0deg, transparent, transparent 38px, rgba(43, 122, 61, 0.07) 38px, rgba(43, 122, 61, 0.07) 40px),
    repeating-linear-gradient(90deg, transparent, transparent 38px, rgba(43, 122, 61, 0.07) 38px, rgba(43, 122, 61, 0.07) 40px),
    var(--color-accent-light);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.map-pin {
  position: absolute;
  top: 44%;
  left: 52%;
  transform: translate(-50%, -100%);
}

/* FAQ 手风琴 */
.faq-list {
  max-width: 820px;
  margin: 0 auto;
}

.faq-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: 14px;
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 24px;
  background: none;
  border: none;
  font-size: 1rem;
  font-weight: 600;
  font-family: inherit;
  color: var(--color-text);
  text-align: left;
  cursor: pointer;
}

.faq-question .faq-icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  color: var(--color-primary);
  transition: transform 0.25s ease;
}

.faq-item.is-open .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-item.is-open .faq-answer {
  max-height: 400px;
}

.faq-answer-inner {
  padding: 0 24px 20px;
  color: var(--color-text-secondary);
  font-size: 0.95rem;
}

/* ---------- 21. 滚动入场动画 ---------- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- 22. 响应式（移动端优先适配） ---------- */
@media (max-width: 1024px) {
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .cert-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 900px) {
  .hero-grid,
  .about-feature,
  .feature-product,
  .product-detail-top,
  .contact-layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero-card {
    right: 16px;
    bottom: -36px;
    max-width: 240px;
  }

  .news-layout {
    grid-template-columns: 1fr;
  }

  .news-sidebar {
    position: static;
    flex-direction: row;
    flex-wrap: wrap;
  }

  .sidebar-card { flex: 1; min-width: 260px; }

  .grid--3 { grid-template-columns: repeat(2, 1fr); }

  .product-detail-media {
    position: static;
  }
}

@media (max-width: 760px) {
  /* 移动端导航：抽屉式 */
  .nav-toggle { display: flex; }

  .nav-menu {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
    padding: 12px 24px 24px;
    max-height: 0;
    overflow: hidden;
    visibility: hidden;
    transition: max-height 0.35s ease, visibility 0.35s ease;
  }

  .nav-menu.is-open {
    max-height: 80vh;
    overflow-y: auto;
    visibility: visible;
  }

  .nav-menu a {
    display: block;
    padding: 13px 8px;
    border-radius: 0;
    border-bottom: 1px solid var(--color-border);
    font-size: 1.02rem;
  }

  .nav-menu a:hover,
  .nav-menu a.active {
    background: none;
    color: var(--color-primary);
  }

  .nav-cta {
    margin: 14px 0 0;
    justify-content: center;
  }

  .section { padding: 56px 0; }
  .section-header { margin-bottom: 36px; }

  .hero { padding-top: calc(var(--nav-height) + 48px); padding-bottom: 72px; }
  .hero-actions .btn { flex: 1; }
  .hero-trust { gap: 16px; }

  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 32px 16px; }
  .grid--3, .grid--2, .grid--4 { grid-template-columns: 1fr; }

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

  .cta-banner { padding: 40px 28px; flex-direction: column; text-align: center; }
  .cta-banner .btn { width: 100%; }

  .spec-row { flex-direction: column; }

  .ingredient-list { grid-template-columns: 1fr; }

  .news-list-card { grid-template-columns: 1fr; }
  .news-list-card-media { aspect-ratio: 21 / 9; }

  .form-row { grid-template-columns: 1fr; }

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

  .detail-actions { flex-direction: column; }
  .detail-actions .btn { width: 100%; }

  .container { padding: 0 18px; }
}

/* 打印样式：联系页可打印 */
@media print {
  .site-header, .site-footer, .nav-toggle { display: none; }
  body { background: #fff; }
}