/* ========================================
   植造同尘 Verdust - 品牌电商网站样式
   色彩体系: 自然绿 + 大地色
   ======================================== */

/* CSS Variables */
:root {
  --green-dark: #2D5A27;
  --green: #4A8C3F;
  --green-light: #6DBF5E;
  --green-pale: #E8F5E0;
  --earth: #8B6914;
  --earth-light: #F5E6C8;
  --sand: #F9F5EC;
  --text: #2C2C2A;
  --text-secondary: #5F5E5A;
  --text-muted: #888780;
  --white: #FFFFFF;
  --border: #E0DED5;
  --shadow: 0 2px 16px rgba(0,0,0,0.06);
  --radius: 12px;
  --radius-sm: 8px;
  --max-width: 1200px;
  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  color: var(--text);
  background: var(--sand);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

/* ========================================
   Navigation 导航栏
   ======================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow 0.3s;
}

.navbar.scrolled {
  box-shadow: var(--shadow);
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 700;
  color: var(--green-dark);
  letter-spacing: 1px;
}

.nav-logo-img {
  height: 36px;
  width: auto;
  border-radius: 4px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  font-size: 15px;
  color: var(--text-secondary);
  transition: color 0.2s;
  position: relative;
}

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

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--green);
  transition: width 0.3s;
}

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

.nav-cta {
  background: var(--green);
  color: var(--white);
  padding: 10px 24px;
  border-radius: 24px;
  font-size: 14px;
  font-weight: 600;
  transition: background 0.2s, transform 0.2s;
}

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

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  transition: 0.3s;
}

/* ========================================
   Hero Section 首屏
   ======================================== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 120px 24px 80px;
  background: linear-gradient(135deg, #E8F5E0 0%, #F5E6C8 50%, #F9F5EC 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(ellipse at 30% 50%, rgba(74,140,63,0.06) 0%, transparent 60%),
              radial-gradient(ellipse at 70% 20%, rgba(139,105,20,0.04) 0%, transparent 50%);
  animation: heroFloat 20s ease-in-out infinite;
}

@keyframes heroFloat {
  0%, 100% { transform: translate(0, 0); }
  33% { transform: translate(20px, -15px); }
  66% { transform: translate(-15px, 10px); }
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 700px;
}

.hero-badge {
  display: inline-block;
  background: var(--white);
  color: var(--green);
  padding: 6px 20px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 24px;
  border: 1px solid rgba(74,140,63,0.2);
}

.hero h1 {
  font-size: 48px;
  font-weight: 700;
  color: var(--green-dark);
  line-height: 1.3;
  margin-bottom: 16px;
  letter-spacing: 2px;
}

.hero h1 span {
  display: block;
  font-size: 20px;
  font-weight: 400;
  color: var(--text-secondary);
  letter-spacing: 0;
  margin-top: 8px;
}

.hero-subtitle {
  font-size: 18px;
  color: var(--text-secondary);
  margin-bottom: 40px;
  line-height: 1.7;
}

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

.btn-primary {
  background: var(--green);
  color: var(--white);
  padding: 14px 36px;
  border-radius: 28px;
  font-size: 16px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: background 0.2s, transform 0.2s, box-shadow 0.2s;
}

.btn-primary:hover {
  background: var(--green-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(45,90,39,0.25);
}

.btn-outline {
  background: var(--white);
  color: var(--green);
  padding: 14px 36px;
  border-radius: 28px;
  font-size: 16px;
  font-weight: 600;
  border: 2px solid var(--green);
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
}

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

/* ========================================
   Features Section 特色
   ======================================== */
.section {
  padding: 80px 24px;
}

.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-header h2 {
  font-size: 32px;
  color: var(--green-dark);
  margin-bottom: 12px;
  font-weight: 700;
}

.section-header p {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto;
}

.features-grid {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.feature-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 36px 28px;
  text-align: center;
  transition: transform 0.2s, box-shadow 0.2s;
  border: 1px solid var(--border);
}

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

.feature-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 20px;
  background: var(--green-pale);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
}

.feature-card h3 {
  font-size: 18px;
  color: var(--text);
  margin-bottom: 8px;
  font-weight: 600;
}

.feature-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ========================================
   Products Section 产品展示
   ======================================== */
.products-section {
  background: var(--white);
}

.category-tabs {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.category-tab {
  padding: 10px 24px;
  border-radius: 24px;
  font-size: 14px;
  font-weight: 500;
  border: 1px solid var(--border);
  background: var(--white);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s;
}

.category-tab:hover,
.category-tab.active {
  background: var(--green);
  color: var(--white);
  border-color: var(--green);
}

.products-grid {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
  gap: 24px;
}

.product-card {
  background: var(--sand);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.2s, box-shadow 0.2s;
  cursor: pointer;
}

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

.product-image {
  width: 100%;
  height: 220px;
  background: var(--green-pale);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 48px;
  position: relative;
}

.product-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  background: var(--earth);
  color: var(--white);
  padding: 4px 12px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 500;
}

.product-info {
  padding: 20px;
}

.product-category {
  font-size: 12px;
  color: var(--green);
  font-weight: 500;
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.product-info h3 {
  font-size: 16px;
  color: var(--text);
  margin-bottom: 6px;
  font-weight: 600;
}

.product-desc {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 12px;
  line-height: 1.5;
}

.product-price {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.product-price .current {
  font-size: 22px;
  font-weight: 700;
  color: var(--earth);
}

.product-price .original {
  font-size: 14px;
  color: var(--text-muted);
  text-decoration: line-through;
}

/* ========================================
   Package Section 场景套餐
   ======================================== */
.packages-grid {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.package-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 36px 28px;
  border: 1px solid var(--border);
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
  position: relative;
}

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

.package-card.featured {
  border-color: var(--green);
  border-width: 2px;
}

.package-card.featured::before {
  content: '推荐';
  position: absolute;
  top: -12px;
  right: 24px;
  background: var(--green);
  color: var(--white);
  padding: 4px 16px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 600;
}

.package-card h3 {
  font-size: 20px;
  color: var(--green-dark);
  margin-bottom: 8px;
  font-weight: 600;
}

.package-desc {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 16px;
  line-height: 1.6;
}

.package-items {
  list-style: none;
  margin-bottom: 20px;
}

.package-items li {
  font-size: 13px;
  color: var(--text-secondary);
  padding: 4px 0;
  padding-left: 20px;
  position: relative;
}

.package-items li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--green);
  font-weight: 700;
}

.package-price {
  font-size: 28px;
  font-weight: 700;
  color: var(--earth);
  margin-bottom: 4px;
}

.package-price small {
  font-size: 14px;
  font-weight: 400;
  color: var(--text-muted);
}

.package-cta {
  margin-top: 16px;
  width: 100%;
  padding: 12px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  background: var(--green);
  color: var(--white);
  border: none;
}

.package-cta:hover {
  background: var(--green-dark);
}

/* ========================================
   Story Section 品牌故事
   ======================================== */
.story-section {
  background: var(--green-pale);
}

.story-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.story-content p {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 16px;
}

.story-values {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 20px;
  margin-top: 40px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.value-item {
  background: var(--white);
  border-radius: var(--radius-sm);
  padding: 24px 16px;
  text-align: center;
}

.value-item .value-icon {
  font-size: 32px;
  margin-bottom: 10px;
}

.value-item h4 {
  font-size: 15px;
  color: var(--green-dark);
  margin-bottom: 4px;
  font-weight: 600;
}

.value-item p {
  font-size: 12px;
  color: var(--text-muted);
  margin: 0;
}

/* ========================================
   CTA Section
   ======================================== */
.cta-section {
  background: var(--green-dark);
  color: var(--white);
  text-align: center;
  padding: 80px 24px;
}

.cta-section h2 {
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 12px;
}

.cta-section p {
  font-size: 16px;
  opacity: 0.85;
  margin-bottom: 32px;
  line-height: 1.7;
}

.cta-section .btn-primary {
  background: var(--white);
  color: var(--green-dark);
}

.cta-section .btn-primary:hover {
  background: var(--sand);
  box-shadow: 0 6px 24px rgba(0,0,0,0.15);
}

/* ========================================
   Footer 页脚
   ======================================== */
.footer {
  background: #1A1A1A;
  color: rgba(255,255,255,0.7);
  padding: 60px 24px 30px;
}

.footer-grid {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
}

.footer-brand h3 {
  color: var(--white);
  font-size: 20px;
  margin-bottom: 12px;
  font-weight: 600;
}

.footer-brand p {
  font-size: 13px;
  line-height: 1.7;
  margin-bottom: 16px;
}

.footer-social {
  display: flex;
  gap: 12px;
}

.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;
  font-size: 16px;
  transition: background 0.2s;
}

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

.footer-col h4 {
  color: var(--white);
  font-size: 14px;
  margin-bottom: 16px;
  font-weight: 600;
}

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

.footer-col li {
  margin-bottom: 10px;
}

.footer-col a {
  font-size: 13px;
  color: rgba(255,255,255,0.5);
  transition: color 0.2s;
}

.footer-col a:hover {
  color: var(--white);
}

.footer-bottom {
  max-width: var(--max-width);
  margin: 40px auto 0;
  padding-top: 20px;
  border-top: 1px solid rgba(255,255,255,0.1);
  text-align: center;
  font-size: 12px;
  color: rgba(255,255,255,0.4);
}

.footer-bottom .icp {
  margin-top: 6px;
}

/* ========================================
   Responsive 响应式
   ======================================== */
@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    padding: 20px;
    gap: 16px;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow);
  }

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

  .nav-toggle {
    display: flex;
  }

  .hero h1 {
    font-size: 32px;
  }

  .hero h1 span {
    font-size: 16px;
  }

  .hero-subtitle {
    font-size: 15px;
  }

  .section-header h2 {
    font-size: 26px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .products-grid {
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  }

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

/* ========================================
   Animations
   ======================================== */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

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

/* Page banner for subpages */
.page-banner {
  background: linear-gradient(135deg, var(--green-pale), var(--earth-light));
  padding: 120px 24px 60px;
  text-align: center;
}

.page-banner h1 {
  font-size: 36px;
  color: var(--green-dark);
  font-weight: 700;
  margin-bottom: 8px;
}

.page-banner p {
  font-size: 16px;
  color: var(--text-secondary);
}

/* Contact page */
.contact-grid {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.contact-info h2 {
  font-size: 28px;
  color: var(--green-dark);
  margin-bottom: 16px;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 20px;
}

.contact-icon {
  width: 44px;
  height: 44px;
  background: var(--green-pale);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}

.contact-text h4 {
  font-size: 15px;
  color: var(--text);
  margin-bottom: 4px;
  font-weight: 600;
}

.contact-text p {
  font-size: 14px;
  color: var(--text-secondary);
}

.qr-code {
  width: 180px;
  height: 180px;
  background: var(--green-pale);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 20px;
  font-size: 14px;
  color: var(--text-muted);
  border: 2px dashed var(--border);
}

@media (max-width: 768px) {
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

/* ========================================
   Cooperation 合作招商页面
   ======================================== */
.cooperation-category {
  max-width: var(--max-width);
  margin: 0 auto 40px;
  background: var(--white);
  border-radius: var(--radius);
  padding: 32px;
  border: 1px solid var(--border);
}

.cooperation-category h3 {
  font-size: 20px;
  color: var(--green-dark);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.cat-badge {
  display: inline-block;
  background: var(--green);
  color: var(--white);
  padding: 4px 12px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
}

.cooperation-table-wrap {
  overflow-x: auto;
  margin-bottom: 16px;
}

.cooperation-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.cooperation-table thead th {
  background: var(--green-pale);
  color: var(--green-dark);
  padding: 12px 16px;
  text-align: left;
  font-weight: 600;
  white-space: nowrap;
}

.cooperation-table thead th:first-child {
  border-radius: 6px 0 0 0;
}

.cooperation-table thead th:last-child {
  border-radius: 0 6px 0 0;
}

.cooperation-table tbody td {
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
  color: var(--text-secondary);
  line-height: 1.5;
}

.cooperation-table tbody tr:hover {
  background: var(--sand);
}

.cooperation-requirement {
  background: var(--sand);
  border-radius: var(--radius-sm);
  padding: 16px 20px;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.cooperation-requirement strong {
  color: var(--green-dark);
}