/* ============================================
   广西诚盾科技有限公司 官网样式 — 品质暖风格
   chengdun.cc
   主色：深棕/暖灰 #4a3728
   辅色：暖灰 #8b7e74
   背景：奶白 #faf8f5, 暖米 #f5f0eb
   点缀：暖橙 #e8a87c（尖派品牌关联）
   文字：深棕 #2d2016，次要 #7a6e63
   ============================================ */

/* --- CSS Variables --- */
:root {
  /* 以下颜色统一引用 shared/tokens.css 的单一配色源（按 data-theme 主题化） */
  --color-primary: var(--brand);
  --color-accent: var(--secondary);
  --color-accent-dark: var(--secondary-strong);
  --color-bg: var(--bg);
  --color-bg-warm: var(--bg-alt);
  --color-bg-cream: var(--bg);
  --color-bg-white: var(--surface);
  --color-text: var(--text);
  --color-text-light: var(--text-muted);
  --color-text-lighter: var(--text-soft);
  --color-border: var(--border);
  --color-dark: var(--text);
  /* 保留站点本地微调色（非品牌主色，不参与主题切换） */
  --color-primary-light: #6b5647;
  --color-primary-dark: #3d2c2c;
  --color-accent-light: #f0c4a8;
  --color-secondary: #8b7e74;
  --font-family: -apple-system, BlinkMacSystemFont, "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial,
    sans-serif;
  --font-serif: "Georgia", "Noto Serif SC", "SimSun", serif;
  --max-width: 1200px;
  --header-height: 68px;
  --transition: 0.3s ease;
  --radius: 12px;
  --shadow-sm: 0 2px 10px rgba(45, 32, 22, 0.05);
  --shadow-md: 0 4px 20px rgba(45, 32, 22, 0.07);
  --shadow-lg: 0 10px 40px rgba(45, 32, 22, 0.1);
}

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

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

body {
  font-family: var(--font-family);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: var(--color-accent-dark);
  text-decoration: none;
  transition: color var(--transition);
}

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

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

ul, ol {
  list-style: none;
}

::selection {
  background: var(--color-accent-light);
  color: var(--color-text);
}

/* --- Container --- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* --- Navigation --- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(74, 55, 40, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: background 0.4s, box-shadow 0.4s;
}

.navbar.scrolled {
  background: rgba(61, 44, 44, 0.97);
  box-shadow: 0 2px 20px rgba(45, 32, 22, 0.2);
}

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

.nav-brand {
  font-size: 1.25rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: 2px;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 2px;
}

.nav-brand .brand-main {
  color: #fff;
}

.nav-brand .brand-sub {
  color: var(--color-accent);
  font-weight: 400;
  font-size: 0.85rem;
  opacity: 0.8;
  margin-left: 2px;
}

.nav-links {
  display: flex;
  gap: 6px;
}

.nav-links a {
  color: rgba(255, 255, 255, 0.75);
  padding: 8px 18px;
  border-radius: 6px;
  font-size: 0.95rem;
  transition: color 0.3s, background 0.3s;
  position: relative;
  letter-spacing: 0.5px;
}

.nav-links a:hover,
.nav-links a.active {
  color: #fff;
  background: rgba(232, 168, 124, 0.2);
}

.nav-links a.active {
  background: rgba(232, 168, 124, 0.3);
}

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

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}

.nav-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* --- Hero Section --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(160deg, #3d2c2c 0%, #4a3728 40%, #5c4535 100%);
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(232, 168, 124, 0.12), transparent 65%);
  top: -200px;
  right: -150px;
  border-radius: 50%;
  animation: heroGlow 8s ease-in-out infinite;
}

.hero::after {
  content: "";
  position: absolute;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(232, 168, 124, 0.08), transparent 65%);
  bottom: -100px;
  left: -100px;
  border-radius: 50%;
  animation: heroGlow 10s ease-in-out infinite reverse;
}

@keyframes heroGlow {
  0%, 100% { transform: scale(1); opacity: 0.6; }
  50% { transform: scale(1.12); opacity: 1; }
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 0 20px;
  max-width: 800px;
}

.hero-content h1 {
  font-size: 3.2rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: 6px;
  margin-bottom: 16px;
  line-height: 1.3;
}

.hero-content h1 .highlight {
  color: var(--color-accent);
  font-weight: 800;
}

.hero-content p {
  font-size: 1.2rem;
  color: rgba(255, 255, 255, 0.65);
  margin-bottom: 36px;
  letter-spacing: 3px;
}

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

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 34px;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all 0.3s;
  text-decoration: none;
  letter-spacing: 1px;
}

.btn-primary {
  background: var(--color-accent);
  color: #fff;
  box-shadow: 0 4px 15px rgba(232, 168, 124, 0.35);
}

.btn-primary:hover {
  background: var(--color-accent-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(232, 168, 124, 0.45);
}

.btn-outline {
  background: transparent;
  color: #fff;
  border: 1.5px solid rgba(255, 255, 255, 0.3);
}

.btn-outline:hover {
  border-color: var(--color-accent);
  background: rgba(232, 168, 124, 0.1);
  color: #fff;
}

.btn-warm {
  background: linear-gradient(135deg, #e8a87c, #d4845a);
  color: #fff;
  box-shadow: 0 4px 15px rgba(232, 168, 124, 0.4);
}

.btn-warm:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(232, 168, 124, 0.5);
  color: #fff;
}

.btn-dark {
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 4px 15px rgba(74, 55, 40, 0.3);
}

.btn-dark:hover {
  background: var(--color-primary-light);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(74, 55, 40, 0.4);
}

/* --- Section Common --- */
.section {
  padding: 100px 0;
}

.section-alt {
  background: var(--color-bg-warm);
}

.section-dark {
  background: linear-gradient(160deg, #3d2c2c 0%, #2d2016 100%);
  color: #fff;
}

.section-title {
  text-align: center;
  margin-bottom: 60px;
}

.section-title h2 {
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 12px;
  position: relative;
  display: inline-block;
  letter-spacing: 2px;
}

.section-dark .section-title h2 {
  color: #fff;
}

.section-title h2::after {
  content: "";
  display: block;
  width: 50px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent-light));
  margin: 12px auto 0;
  border-radius: 2px;
}

.section-title p {
  color: var(--color-text-light);
  font-size: 1.05rem;
  max-width: 600px;
  margin: 0 auto;
}

.section-dark .section-title p {
  color: rgba(255, 255, 255, 0.55);
}

/* --- About Preview --- */
.about-preview {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-text h3 {
  font-size: 1.6rem;
  color: var(--color-primary);
  margin-bottom: 20px;
  font-weight: 700;
  letter-spacing: 1px;
}

.about-text p {
  color: var(--color-text-light);
  margin-bottom: 16px;
  line-height: 1.9;
}

.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.stat-card {
  background: var(--color-bg-white);
  border-radius: var(--radius);
  padding: 28px 20px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  transition: transform 0.3s, box-shadow 0.3s;
}

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

.stat-number {
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1.2;
}

.stat-number .counter {
  display: inline;
}

.stat-label {
  font-size: 0.9rem;
  color: var(--color-secondary);
  margin-top: 6px;
}

/* --- Business Cards --- */
.business-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.biz-card {
  background: var(--color-bg-white);
  border-radius: 16px;
  padding: 40px 30px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  transition: transform 0.3s, box-shadow 0.3s;
  position: relative;
  overflow: hidden;
}

.biz-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent-light));
  transform: scaleX(0);
  transition: transform 0.3s;
}

.biz-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.biz-card:hover::before {
  transform: scaleX(1);
}

.biz-icon {
  width: 72px;
  height: 72px;
  border-radius: 16px;
  background: var(--color-bg-cream);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-size: 1.8rem;
}

.biz-card h3 {
  font-size: 1.25rem;
  color: var(--color-primary);
  margin-bottom: 12px;
  font-weight: 700;
}

.biz-card p {
  color: var(--color-text-light);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* --- Brand Section --- */
.brand-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.brand-showcase {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.brand-showcase img {
  width: 100%;
  height: 360px;
  object-fit: cover;
  transition: transform 0.5s;
}

.brand-showcase:hover img {
  transform: scale(1.05);
}

.brand-showcase .brand-badge {
  position: absolute;
  bottom: 20px;
  left: 20px;
  background: rgba(232, 168, 124, 0.92);
  color: #fff;
  padding: 8px 20px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  backdrop-filter: blur(4px);
}

.brand-info h3 {
  font-size: 1.8rem;
  color: var(--color-primary);
  margin-bottom: 16px;
  font-weight: 700;
}

.brand-info h3 .warm {
  color: var(--color-accent);
}

.brand-info p {
  color: var(--color-text-light);
  margin-bottom: 16px;
  line-height: 1.9;
}

.brand-products {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin: 20px 0;
}

.brand-tag {
  background: var(--color-bg-cream);
  color: var(--color-accent-dark);
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  border: 1px solid var(--color-accent-light);
}

/* --- Warehouse Grid (Homepage) --- */
.warehouse-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.warehouse-card {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 4 / 3;
  box-shadow: var(--shadow-sm);
  cursor: pointer;
}

.warehouse-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.warehouse-card:hover img {
  transform: scale(1.08);
}

.warehouse-label {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 16px 20px;
  background: linear-gradient(transparent, rgba(74, 55, 40, 0.7));
  color: #fff;
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 1px;
}

.warehouse-card:hover .warehouse-label {
  padding-bottom: 24px;
  background: linear-gradient(transparent, rgba(61, 44, 44, 0.88));
}

/* --- Warehouse Showcase (About Page) --- */
.warehouse-showcase {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 40px;
  align-items: start;
}

.warehouse-main {
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.warehouse-main img {
  width: 100%;
  display: block;
}

.warehouse-info h3 {
  font-size: 1.5rem;
  color: var(--color-primary);
  font-weight: 700;
  margin-bottom: 16px;
}

.warehouse-info p {
  color: var(--color-text-light);
  line-height: 1.9;
  margin-bottom: 20px;
}

.warehouse-list {
  list-style: none;
  padding: 0;
  margin-bottom: 24px;
}

.warehouse-list li {
  padding: 10px 0 10px 28px;
  position: relative;
  color: var(--color-text);
  font-size: 0.95rem;
}

.warehouse-list li::before {
  content: "\2713";
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: 700;
  font-size: 1rem;
}

.warehouse-thumbs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}

.warehouse-thumbs img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: 8px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s, box-shadow 0.3s;
  cursor: pointer;
}

.warehouse-thumbs img:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-md);
}

@media (max-width: 900px) {
  .warehouse-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .warehouse-showcase {
    grid-template-columns: 1fr;
  }
  .warehouse-thumbs {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (max-width: 600px) {
  .warehouse-grid {
    grid-template-columns: 1fr;
  }
  .warehouse-thumbs {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* --- CTA Section --- */
.cta-section {
  text-align: center;
  padding: 80px 0;
}

.cta-section h2 {
  font-size: 2rem;
  color: #fff;
  margin-bottom: 16px;
  font-weight: 700;
  letter-spacing: 2px;
}

.cta-section p {
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 32px;
  font-size: 1.05rem;
}

/* --- Footer --- */
.footer {
  background: #2d2016;
  color: rgba(255, 255, 255, 0.65);
  padding: 60px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand h4 {
  color: #fff;
  font-size: 1.3rem;
  margin-bottom: 12px;
  font-weight: 700;
}

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.7;
}

.footer h5 {
  color: #fff;
  font-size: 1rem;
  margin-bottom: 16px;
  font-weight: 600;
}

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

.footer ul li a {
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.9rem;
  transition: color 0.3s;
}

.footer ul li a:hover {
  color: var(--color-accent);
}

.footer-contact li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 0.9rem;
}

.footer-contact .icon {
  flex-shrink: 0;
  width: 18px;
  text-align: center;
  color: var(--color-accent);
}

.footer-bottom {
  text-align: center;
  padding: 20px 0;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.3);
}

/* --- Page Hero (sub-pages) --- */
.page-hero {
  background: linear-gradient(160deg, #3d2c2c 0%, #4a3728 100%);
  padding: 140px 0 80px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: "";
  position: absolute;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(232, 168, 124, 0.08), transparent 65%);
  top: -150px;
  right: -100px;
  border-radius: 50%;
}

.page-hero h1 {
  font-size: 2.5rem;
  color: #fff;
  font-weight: 700;
  position: relative;
  z-index: 1;
  letter-spacing: 3px;
}

.page-hero p {
  color: rgba(255, 255, 255, 0.55);
  font-size: 1.05rem;
  margin-top: 12px;
  position: relative;
  z-index: 1;
}

/* --- Company Intro (About Page) --- */
.company-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.intro-text h3 {
  font-size: 1.6rem;
  color: var(--color-primary);
  margin-bottom: 20px;
  font-weight: 700;
}

.intro-text p {
  color: var(--color-text-light);
  margin-bottom: 14px;
  line-height: 1.9;
}

.intro-image {
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.intro-image img {
  width: 100%;
  height: 400px;
  object-fit: cover;
}

/* --- Timeline --- */
.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
  padding: 20px 0;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--color-accent), var(--color-accent-light));
  transform: translateX(-50%);
}

.timeline-item {
  display: flex;
  margin-bottom: 40px;
  position: relative;
}

.timeline-item:nth-child(odd) {
  flex-direction: row;
}

.timeline-item:nth-child(even) {
  flex-direction: row-reverse;
}

.timeline-content {
  width: 45%;
  background: var(--color-bg-white);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  position: relative;
}

.timeline-item:nth-child(odd) .timeline-content {
  margin-right: auto;
}

.timeline-item:nth-child(even) .timeline-content {
  margin-left: auto;
}

.timeline-dot {
  position: absolute;
  left: 50%;
  top: 30px;
  width: 14px;
  height: 14px;
  background: var(--color-accent);
  border-radius: 50%;
  transform: translateX(-50%);
  border: 3px solid var(--color-bg);
  z-index: 1;
}

.timeline-year {
  display: inline-block;
  background: var(--color-accent);
  color: #fff;
  padding: 4px 14px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.timeline-content h4 {
  color: var(--color-primary);
  font-size: 1.1rem;
  margin-bottom: 8px;
  font-weight: 700;
}

.timeline-content p {
  color: var(--color-text-light);
  font-size: 0.9rem;
  line-height: 1.7;
}

/* --- Culture Cards --- */
.culture-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.culture-card {
  background: var(--color-bg-white);
  border-radius: 16px;
  padding: 40px 30px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  transition: transform 0.3s, box-shadow 0.3s;
}

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

.culture-icon {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-size: 1.6rem;
}

.culture-icon.mission {
  background: var(--color-bg-cream);
}

.culture-icon.vision {
  background: rgba(232, 168, 124, 0.12);
}

.culture-icon.values {
  background: rgba(139, 126, 116, 0.12);
}

.culture-card h3 {
  font-size: 1.2rem;
  color: var(--color-primary);
  margin-bottom: 12px;
  font-weight: 700;
}

.culture-card p {
  color: var(--color-text-light);
  font-size: 0.95rem;
  line-height: 1.8;
}

/* --- Business Page --- */
.biz-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  margin-bottom: 60px;
}

.biz-detail.reverse {
  direction: rtl;
}

.biz-detail.reverse > * {
  direction: ltr;
}

.biz-detail-image {
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.biz-detail-image img {
  width: 100%;
  height: 340px;
  object-fit: cover;
}

.biz-detail-text h3 {
  font-size: 1.5rem;
  color: var(--color-primary);
  margin-bottom: 16px;
  font-weight: 700;
}

.biz-detail-text p {
  color: var(--color-text-light);
  margin-bottom: 14px;
  line-height: 1.9;
}

.biz-detail-text ul {
  margin: 16px 0;
}

.biz-detail-text ul li {
  color: var(--color-text-light);
  padding: 6px 0;
  padding-left: 20px;
  position: relative;
  font-size: 0.95rem;
}

.biz-detail-text ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 14px;
  width: 8px;
  height: 8px;
  background: var(--color-accent);
  border-radius: 50%;
}

/* --- Product Grid --- */
.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  margin: 40px 0;
}

.product-card {
  background: var(--color-bg-white);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  transition: transform 0.3s, box-shadow 0.3s;
}

.product-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.product-card img {
  width: 100%;
  height: 240px;
  object-fit: cover;
}

.product-card-body {
  padding: 20px;
}

.product-card-body h4 {
  font-size: 1.1rem;
  color: var(--color-primary);
  margin-bottom: 8px;
  font-weight: 700;
}

.product-card-body p {
  color: var(--color-text-light);
  font-size: 0.9rem;
  line-height: 1.6;
}

.product-card-body .warm-tag {
  display: inline-block;
  background: var(--color-bg-cream);
  color: var(--color-accent-dark);
  padding: 3px 12px;
  border-radius: 12px;
  font-size: 0.8rem;
  font-weight: 600;
  margin-top: 10px;
}

/* --- Contact Page --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 50px;
}

.contact-info-card {
  background: linear-gradient(160deg, #4a3728, #3d2c2c);
  border-radius: 16px;
  padding: 40px;
  color: #fff;
}

.contact-info-card h3 {
  font-size: 1.5rem;
  margin-bottom: 24px;
  font-weight: 700;
}

.contact-info-item {
  display: flex;
  gap: 14px;
  margin-bottom: 22px;
  align-items: flex-start;
}

.contact-info-item .icon {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  background: rgba(232, 168, 124, 0.25);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
}

.contact-info-item .text {
  font-size: 0.95rem;
  line-height: 1.6;
}

.contact-info-item .text strong {
  display: block;
  margin-bottom: 4px;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.55);
  font-weight: 500;
}

/* --- Form --- */
.contact-form {
  background: var(--color-bg-white);
  border-radius: 16px;
  padding: 40px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
}

.contact-form h3 {
  font-size: 1.4rem;
  color: var(--color-primary);
  margin-bottom: 24px;
  font-weight: 700;
}

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

.form-group label {
  display: block;
  font-size: 0.9rem;
  color: var(--color-text-light);
  margin-bottom: 6px;
  font-weight: 600;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--color-border);
  border-radius: 8px;
  font-size: 0.95rem;
  font-family: inherit;
  transition: border-color 0.3s, box-shadow 0.3s;
  background: var(--color-bg-white);
  color: var(--color-text);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(232, 168, 124, 0.15);
}

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

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

/* --- Map Placeholder --- */
.map-container {
  margin-top: 60px;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  height: 360px;
  background: var(--color-border);
  position: relative;
}

.map-container iframe {
  width: 100%;
  height: 100%;
  border: none;
}

.map-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--color-secondary);
  background: linear-gradient(135deg, var(--color-bg), var(--color-bg-warm));
}

.map-placeholder .icon {
  font-size: 3rem;
  margin-bottom: 12px;
}

/* --- Cooperation Types --- */
.coop-types {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 40px;
}

.coop-card {
  background: var(--color-bg-white);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  transition: transform 0.3s;
}

.coop-card:hover {
  transform: translateY(-3px);
}

.coop-card .icon {
  font-size: 2rem;
  margin-bottom: 12px;
}

.coop-card h4 {
  color: var(--color-primary);
  font-size: 1rem;
  margin-bottom: 6px;
  font-weight: 700;
}

.coop-card p {
  color: var(--color-text-lighter);
  font-size: 0.85rem;
}

/* --- Fade-in Animation --- */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* --- Scroll to Top --- */
.scroll-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 44px;
  height: 44px;
  background: var(--color-accent);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s, transform 0.3s;
  box-shadow: 0 4px 15px rgba(232, 168, 124, 0.35);
  z-index: 999;
}

.scroll-top.show {
  opacity: 1;
  visibility: visible;
}

.scroll-top:hover {
  transform: translateY(-3px);
  background: var(--color-accent-dark);
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .about-preview,
  .brand-section,
  .company-intro,
  .biz-detail,
  .biz-detail.reverse {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .biz-detail.reverse {
    direction: ltr;
  }

  .business-cards,
  .culture-cards,
  .product-grid {
    grid-template-columns: 1fr 1fr;
  }

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

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

  .coop-types {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  html {
    font-size: 15px;
  }

  .nav-links {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: rgba(61, 44, 44, 0.98);
    flex-direction: column;
    padding: 20px;
    gap: 4px;
    transform: translateY(-120%);
    transition: transform 0.35s ease;
    box-shadow: 0 8px 30px rgba(45, 32, 22, 0.25);
  }

  .nav-links.open {
    transform: translateY(0);
  }

  .nav-toggle {
    display: flex;
  }

  .hero-content h1 {
    font-size: 2.2rem;
    letter-spacing: 2px;
  }

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

  .section {
    padding: 60px 0;
  }

  .section-title h2 {
    font-size: 1.7rem;
  }

  .about-stats {
    grid-template-columns: 1fr 1fr;
  }

  .business-cards,
  .culture-cards,
  .product-grid {
    grid-template-columns: 1fr;
  }

  .timeline::before {
    left: 20px;
  }

  .timeline-item,
  .timeline-item:nth-child(even) {
    flex-direction: column;
    padding-left: 50px;
  }

  .timeline-content {
    width: 100%;
  }

  .timeline-dot {
    left: 20px;
    transform: none;
  }

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

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

  .coop-types {
    grid-template-columns: 1fr 1fr;
  }

  .page-hero {
    padding: 120px 0 60px;
  }

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

  .brand-products {
    flex-direction: column;
  }
}

@media (max-width: 480px) {
  .hero-content h1 {
    font-size: 1.8rem;
  }

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

  .btn {
    width: 100%;
    max-width: 280px;
  }

  .about-stats {
    grid-template-columns: 1fr;
  }

  .coop-types {
    grid-template-columns: 1fr;
  }
}

/* --- Utilities --- */
.text-center {
  text-align: center;
}

.mt-40 {
  margin-top: 40px;
}

.mb-20 {
  margin-bottom: 20px;
}