/*
 * TerrazzoCo 主样式文件
 * 简约商务风格 · 白底主色调
 * ============================================ */

/* ===== CSS Variables ===== */
:root {
  --primary: #2C3E50;
  --primary-light: #34495E;
  --accent: #E67E22;
  --accent-hover: #D35400;
  --text: #333333;
  --text-light: #666666;
  --text-muted: #999999;
  --bg: #FFFFFF;
  --bg-light: #F8F9FA;
  --bg-dark: #2C3E50;
  --border: #E5E5E5;
  --border-light: #F0F0F0;
  --radius: 8px;
  --radius-lg: 12px;
  --shadow: 0 2px 15px rgba(0,0,0,0.08);
  --shadow-lg: 0 5px 30px rgba(0,0,0,0.12);
  --transition: 0.3s ease;
  --max-width: 1200px;
  --header-height: 120px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

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

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

ul { list-style: none; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: 0.5em;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.3rem; }
h4 { font-size: 1.1rem; }

p { margin-bottom: 1rem; color: var(--text-light); }

.text-center { text-align: center; }
.text-muted { color: var(--text-muted); }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mt-5 { margin-top: 3rem; }
.pt-3 { padding-top: 1.5rem; }

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 500;
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
  line-height: 1.4;
}

.btn-primary {
  background: var(--accent);
  color: #fff !important;
  border-color: var(--accent);
}
.btn-primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); }

.btn-outline {
  background: transparent;
  color: var(--primary) !important;
  border-color: var(--primary);
}
.btn-outline:hover { background: var(--primary); color: #fff !important; }

.btn-text {
  background: none;
  color: var(--accent) !important;
  padding: 0;
  border: none;
  font-weight: 500;
}
.btn-text:hover { color: var(--accent-hover) !important; gap: 12px; }

.btn-lg { padding: 16px 36px; font-size: 1.05rem; }
.btn-sm { padding: 6px 14px; font-size: 0.85rem; }
.btn-block { display: flex; width: 100%; justify-content: center; }

/* ===== Header ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: #fff;
  box-shadow: 0 2px 10px rgba(0,0,0,0.06);
}

.header-top {
  background: var(--primary);
  color: #fff;
  font-size: 0.85rem;
  padding: 6px 0;
}
.header-top .container {
  display: flex;
  justify-content: flex-end;
  align-items: center;
}
.header-contact { display: flex; gap: 20px; }
.header-contact a { color: #fff; }
.header-contact a:hover { color: var(--accent); }
.header-contact i { margin-right: 5px; }

.header-main { padding: 12px 0; }
.header-main .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.logo { flex-shrink: 0; }
.logo img { height: 45px; }

/* Navigation */
.main-nav ul { display: flex; gap: 5px; }
.main-nav a {
  display: block;
  padding: 8px 16px;
  color: var(--text);
  font-weight: 500;
  border-radius: var(--radius);
  font-size: 0.95rem;
}
.main-nav a:hover,
.main-nav a.active { color: var(--accent); background: var(--bg-light); }

.has-submenu { position: relative; }
.submenu {
  position: absolute;
  top: 100%;
  left: 0;
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  min-width: 200px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: var(--transition);
  z-index: 100;
  padding: 8px 0;
}
.has-submenu:hover .submenu { opacity: 1; visibility: visible; transform: translateY(0); }
.submenu a { padding: 10px 20px; border-radius: 0; }
.submenu a:hover { background: var(--bg-light); }

.header-actions { display: flex; align-items: center; gap: 10px; }
.search-btn {
  font-size: 1.2rem;
  color: var(--text);
  padding: 8px;
}
.search-btn:hover { color: var(--accent); }

/* Mobile Menu Toggle */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 5px;
}
.mobile-menu-toggle span {
  display: block;
  width: 25px;
  height: 2px;
  background: var(--text);
  transition: var(--transition);
}

/* ===== Hero Slider ===== */
.hero-slider {
  position: relative;
  height: 70vh;
  min-height: 500px;
  overflow: hidden;
  margin-top: var(--header-height);
}

.slider-container { position: relative; height: 100%; }

.slide {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 0.8s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}
.slide.active { opacity: 1; }

.slide-content {
  text-align: center;
  color: #fff;
  padding: 0 20px;
  max-width: 800px;
}
.slide-content h1 {
  font-size: 3.5rem;
  margin-bottom: 20px;
  text-shadow: 0 2px 10px rgba(0,0,0,0.3);
}
.slide-content p {
  font-size: 1.2rem;
  margin-bottom: 30px;
  color: rgba(255,255,255,0.9);
}
.slide-content .btn-primary {
  background: #fff;
  color: var(--primary) !important;
  border-color: #fff;
}
.slide-content .btn-primary:hover { background: var(--accent); color: #fff !important; border-color: var(--accent); }

.slider-controls {
  position: absolute;
  bottom: 40px;
  left: 0;
  right: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 15px;
  z-index: 10;
}
.slider-prev,
.slider-next {
  background: rgba(255,255,255,0.2);
  color: #fff;
  border: none;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 1.1rem;
  transition: var(--transition);
}
.slider-prev:hover,
.slider-next:hover { background: rgba(255,255,255,0.4); }

.slider-dots { display: flex; gap: 8px; }
.slider-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255,255,255,0.4);
  cursor: pointer;
  transition: var(--transition);
}
.slider-dots span.active { background: #fff; width: 28px; border-radius: 5px; }

/* ===== Sections ===== */
.section { padding: 80px 0; }

.section-title {
  text-align: center;
  margin-bottom: 50px;
}
.section-title h2 {
  position: relative;
  display: inline-block;
  margin-bottom: 15px;
}
.section-title h2::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: var(--accent);
}
.section-title p { color: var(--text-muted); font-size: 1.1rem; max-width: 600px; margin: 0 auto; }

.bg-light { background: var(--bg-light); }

/* ===== Features Grid ===== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
}

.feature-card {
  text-align: center;
  padding: 40px 25px;
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  transition: var(--transition);
}
.feature-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }

.feature-icon {
  width: 70px;
  height: 70px;
  margin: 0 auto 20px;
  border-radius: 50%;
  background: var(--bg-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  color: var(--accent);
}

.feature-card h3 { margin-bottom: 10px; }
.feature-card p { font-size: 0.95rem; margin: 0; }

/* ===== Products Grid ===== */
.products-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 25px;
}

.product-card {
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
}
.product-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }

.product-image {
  position: relative;
  display: block;
  aspect-ratio: 1;
  overflow: hidden;
  background: var(--bg-light);
}
.product-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}
.product-card:hover .product-image img { transform: scale(1.05); }

.product-badge {
  position: absolute;
  top: 10px;
  left: 10px;
  background: var(--accent);
  color: #fff;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 500;
}

.product-info { padding: 18px; }
.product-category {
  display: block;
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 6px;
}
.product-info h3 { font-size: 1.1rem; margin-bottom: 8px; }
.product-info h3 a { color: var(--text); }
.product-info h3 a:hover { color: var(--accent); }
.product-info p { font-size: 0.9rem; margin-bottom: 12px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* ===== Applications Grid ===== */
.applications-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 25px;
}

.application-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 35px 25px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: var(--transition);
  display: block;
  color: var(--text);
}
.application-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); color: var(--text); }

.app-icon {
  width: 65px;
  height: 65px;
  margin: 0 auto 18px;
  border-radius: 50%;
  background: var(--bg-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  color: var(--accent);
}
.application-card h3 { margin-bottom: 10px; }
.application-card p { font-size: 0.9rem; margin-bottom: 15px; }
.app-link { color: var(--accent); font-weight: 500; font-size: 0.9rem; }

/* ===== Projects Grid ===== */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 25px;
}

.project-card {
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
}
.project-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }

.project-image {
  position: relative;
  display: block;
  aspect-ratio: 4/3;
  overflow: hidden;
}
.project-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}
.project-card:hover .project-image img { transform: scale(1.05); }

.project-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(transparent, rgba(0,0,0,0.7));
  padding: 30px 20px 15px;
}
.project-details { display: flex; gap: 15px; color: #fff; font-size: 0.85rem; }
.project-details i { margin-right: 5px; }

.project-info { padding: 18px; }
.project-info h3 { font-size: 1.1rem; }
.project-info h3 a { color: var(--text); }
.project-meta { display: flex; gap: 15px; font-size: 0.85rem; color: var(--text-muted); margin-bottom: 10px; }
.project-meta i { margin-right: 4px; }

/* ===== News Grid ===== */
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 25px;
}

.news-card {
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
}
.news-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }

.news-image {
  aspect-ratio: 16/9;
  overflow: hidden;
}
.news-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}
.news-card:hover .news-image img { transform: scale(1.05); }

.news-info { padding: 20px; }
.news-meta { display: flex; gap: 12px; align-items: center; margin-bottom: 10px; font-size: 0.85rem; }
.news-date { color: var(--text-muted); }
.news-category {
  background: var(--bg-light);
  padding: 2px 10px;
  border-radius: 12px;
  font-size: 0.8rem;
  color: var(--text-light);
}
.news-info h3 { font-size: 1.1rem; margin-bottom: 10px; }
.news-info h3 a { color: var(--text); }
.news-info p { font-size: 0.9rem; margin-bottom: 12px; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }

/* ===== CTA Section ===== */
.cta-box {
  background: var(--primary);
  border-radius: var(--radius-lg);
  padding: 60px;
  text-align: center;
  color: #fff;
}
.cta-box h2 { color: #fff; font-size: 2rem; }
.cta-box p { color: rgba(255,255,255,0.8); font-size: 1.1rem; max-width: 600px; margin: 0 auto 30px; }

/* ===== Page Banner ===== */
.page-banner {
  padding: 150px 0 60px;
  background-size: cover;
  background-position: center;
  color: #fff;
  text-align: center;
}
.page-banner h1 { color: #fff; font-size: 2.5rem; margin-bottom: 10px; }

.breadcrumb { font-size: 0.9rem; }
.breadcrumb a { color: rgba(255,255,255,0.8); }
.breadcrumb a:hover { color: #fff; }
.breadcrumb span { color: rgba(255,255,255,0.6); }

/* ===== Filter Bar ===== */
.filter-bar {
  margin-bottom: 30px;
  padding: 20px;
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.filter-group label {
  display: block;
  margin-bottom: 10px;
  font-weight: 600;
  color: var(--text);
}
.filter-options {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.filter-btn {
  padding: 8px 20px;
  border: 1px solid var(--border);
  border-radius: 20px;
  font-size: 0.9rem;
  color: var(--text-light);
  transition: var(--transition);
  cursor: pointer;
  background: #fff;
}
.filter-btn:hover,
.filter-btn.active {
  border-color: var(--accent);
  background: var(--accent);
  color: #fff;
}

/* ===== Product Detail ===== */
.product-detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
}

.product-gallery { position: sticky; top: 140px; align-self: start; }

.main-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-light);
  aspect-ratio: 1;
  margin-bottom: 15px;
}
.main-image img { width: 100%; height: 100%; object-fit: contain; }

.gallery-thumbs {
  display: flex;
  gap: 10px;
}
.gallery-thumbs .thumb {
  width: 80px;
  height: 80px;
  border-radius: var(--radius);
  object-fit: cover;
  cursor: pointer;
  opacity: 0.6;
  transition: var(--transition);
  border: 2px solid transparent;
}
.gallery-thumbs .thumb.active,
.gallery-thumbs .thumb:hover { opacity: 1; border-color: var(--accent); }

.product-detail-info h1 { font-size: 2rem; margin-bottom: 10px; }
.product-category-label { color: var(--accent); font-weight: 500; margin-bottom: 15px; }
.product-description { font-size: 1.05rem; margin-bottom: 25px; }

.specs-table { width: 100%; margin-bottom: 25px; }
.specs-table td {
  padding: 10px 15px;
  border-bottom: 1px solid var(--border-light);
  font-size: 0.95rem;
}
.specs-table td:first-child { font-weight: 600; color: var(--text); width: 40%; }

.features-list { margin: 15px 0 25px; }
.features-list li {
  padding: 6px 0;
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  gap: 8px;
}
.features-list i { color: var(--accent); }

.size-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 25px; }
.size-tag {
  padding: 6px 16px;
  border: 1px solid var(--border);
  border-radius: 20px;
  font-size: 0.9rem;
}

.product-actions {
  display: flex;
  gap: 15px;
  margin-top: 25px;
  flex-wrap: wrap;
}

.product-section { border-top: 1px solid var(--border-light); padding-top: 30px; }
.product-section h2 { margin-bottom: 20px; }

/* ===== Contact Grid ===== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 50px;
}

.contact-details { margin-top: 30px; }
.contact-item {
  display: flex;
  gap: 18px;
  margin-bottom: 25px;
}
.contact-icon {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--bg-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 1.2rem;
  flex-shrink: 0;
}
.contact-item h4 { margin-bottom: 4px; }
.contact-item p { margin: 0; color: var(--text-light); }

/* ===== Forms ===== */
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-group {
  margin-bottom: 20px;
}
.form-group label {
  display: block;
  margin-bottom: 6px;
  font-weight: 500;
  font-size: 0.9rem;
  color: var(--text);
}
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-family: inherit;
  transition: var(--transition);
  background: #fff;
  color: var(--text);
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(230,126,34,0.1);
}

/* ===== Alert ===== */
.alert {
  padding: 16px 20px;
  border-radius: var(--radius);
  margin-bottom: 25px;
  font-size: 0.95rem;
}
.alert-success {
  background: #d4edda;
  color: #155724;
  border: 1px solid #c3e6cb;
}
.alert i { margin-right: 8px; }

/* ===== FAQ ===== */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  background: #fff;
  border-radius: var(--radius);
  margin-bottom: 12px;
  box-shadow: var(--shadow);
  overflow: hidden;
}
.faq-question {
  padding: 18px 25px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 1.05rem;
  margin: 0;
  user-select: none;
}
.faq-question i { transition: var(--transition); font-size: 0.85rem; color: var(--text-muted); }
.faq-item.active .faq-question i { transform: rotate(180deg); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: var(--transition);
}
.faq-item.active .faq-answer { max-height: 300px; }
.faq-answer p { padding: 0 25px 18px; margin: 0; }

/* ===== Search ===== */
.search-box-large { margin-bottom: 30px; }
.search-input-group {
  display: flex;
  gap: 10px;
}
.search-input-group input {
  flex: 1;
  padding: 15px 20px;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  font-size: 1.05rem;
}
.search-input-group input:focus { outline: none; border-color: var(--accent); }

.search-results-header { margin-bottom: 20px; }
.search-results-header p { margin-bottom: 5px; }

.search-tabs { display: flex; gap: 5px; margin-bottom: 25px; }
.search-tabs .tab {
  padding: 10px 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.9rem;
  cursor: pointer;
  transition: var(--transition);
  color: var(--text-light);
}
.search-tabs .tab.active,
.search-tabs .tab:hover { background: var(--accent); color: #fff; border-color: var(--accent); }

.result-heading {
  color: var(--primary);
  border-bottom: 2px solid var(--border);
  padding-bottom: 10px;
  margin: 25px 0 15px;
}

.search-result-item {
  padding: 15px 0;
  border-bottom: 1px solid var(--border-light);
}
.search-result-item a { font-weight: 600; font-size: 1.05rem; display: block; margin-bottom: 5px; }
.search-result-item p { margin: 0; font-size: 0.9rem; }

.search-hint { text-align: center; padding: 40px; }
.search-popular { margin-top: 20px; display: flex; gap: 8px; align-items: center; justify-content: center; flex-wrap: wrap; }
.search-popular .tag {
  padding: 6px 16px;
  background: var(--bg-light);
  border-radius: 20px;
  font-size: 0.9rem;
  color: var(--text-light);
}

/* ===== About ===== */
.about-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 50px;
  align-items: center;
}
.about-content h2 { margin-bottom: 20px; }
.about-image img { border-radius: var(--radius-lg); width: 100%; }

.about-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 40px;
}
.stat-item { text-align: center; }
.stat-number {
  display: block;
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
}
.stat-label { font-size: 0.85rem; color: var(--text-muted); }

.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 25px;
}
.team-card {
  text-align: center;
  padding: 25px;
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}
.team-card img {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  margin: 0 auto 15px;
  object-fit: cover;
}
.team-card h3 { margin-bottom: 4px; font-size: 1.1rem; }
.team-card p { margin: 0; font-size: 0.9rem; }

/* ===== Article Detail ===== */
.article-container { max-width: 800px; }
.article-header { margin-bottom: 30px; }
.article-header .article-meta { display: flex; gap: 15px; margin-bottom: 15px; font-size: 0.9rem; color: var(--text-muted); }
.article-summary { font-size: 1.15rem; color: var(--text-light); font-style: italic; }
.article-content { line-height: 1.9; }
.article-content p { margin-bottom: 1.2rem; font-size: 1.05rem; }
.article-tags { margin-top: 30px; display: flex; gap: 8px; flex-wrap: wrap; }
.tag {
  padding: 5px 14px;
  background: var(--bg-light);
  border-radius: 15px;
  font-size: 0.85rem;
  color: var(--text-light);
}

.article-navigation {
  display: flex;
  justify-content: space-between;
  margin-top: 40px;
  padding-top: 25px;
  border-top: 1px solid var(--border);
}
.article-navigation a { max-width: 45%; font-size: 0.95rem; }

.share-section {
  margin-top: 25px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.share-section a {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--bg-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-light);
  transition: var(--transition);
}
.share-section a:hover { background: var(--accent); color: #fff; }

/* ===== Error Page ===== */
.error-page { min-height: 60vh; display: flex; align-items: center; }
.error-content { text-align: center; max-width: 500px; margin: 0 auto; }
.error-content h1 { font-size: 6rem; color: var(--accent); line-height: 1; margin-bottom: 10px; }
.error-content h2 { font-size: 1.8rem; margin-bottom: 15px; }
.error-actions { display: flex; gap: 15px; justify-content: center; margin-top: 25px; }

/* ===== Pagination ===== */
.pagination {
  display: flex;
  justify-content: center;
  gap: 5px;
  margin-top: 40px;
}
.page-link {
  padding: 8px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.9rem;
  color: var(--text);
  transition: var(--transition);
}
.page-link.active,
.page-link:hover { background: var(--accent); color: #fff; border-color: var(--accent); }

/* ===== No Data ===== */
.no-data {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
  grid-column: 1 / -1;
}
.no-data i { font-size: 3rem; margin-bottom: 15px; display: block; }
.no-data p { font-size: 1.1rem; }

/* ===== Scene Description ===== */
.scene-description {
  background: var(--bg-light);
  padding: 30px;
  border-radius: var(--radius-lg);
  margin-bottom: 30px;
}
.scene-description h2 { margin-bottom: 10px; }
.scene-description p { margin: 0; }

/* ===== Project Detail ===== */
.project-detail {
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  gap: 40px;
}
.project-gallery img { border-radius: var(--radius-lg); margin-bottom: 15px; }
.gallery-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.gallery-grid img { border-radius: var(--radius); }

.project-info-box {
  background: var(--bg-light);
  border-radius: var(--radius-lg);
  padding: 25px;
  margin-bottom: 20px;
}
.project-info-box h3 { margin-bottom: 15px; }
.project-info-box ul li { padding: 8px 0; border-bottom: 1px solid var(--border); font-size: 0.95rem; }
.project-info-box ul li:last-child { border: none; }

.project-actions { display: flex; flex-direction: column; gap: 10px; }
.project-content h2 { margin-bottom: 20px; }
.project-content p { margin-bottom: 1rem; }

/* ===== Footer ===== */
.site-footer {
  background: var(--bg-dark);
  color: rgba(255,255,255,0.8);
  padding: 60px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-logo { margin-bottom: 15px; }
.footer-logo img { height: 40px; }
.footer-desc { font-size: 0.9rem; line-height: 1.7; color: rgba(255,255,255,0.6); }

.footer-social { display: flex; gap: 10px; margin-top: 20px; }
.footer-social a {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.7);
  transition: var(--transition);
}
.footer-social a:hover { background: var(--accent); color: #fff; }

.footer-col h4 {
  color: #fff;
  margin-bottom: 20px;
  font-size: 1.1rem;
}
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a { color: rgba(255,255,255,0.6); font-size: 0.9rem; }
.footer-col ul li a:hover { color: var(--accent); }
.footer-contact li { display: flex; gap: 10px; align-items: flex-start; font-size: 0.9rem; }
.footer-contact i { margin-top: 4px; color: var(--accent); }

.footer-bottom {
  text-align: center;
  padding: 20px 0;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.5);
}

/* ===== Scroll to Top ===== */
.scroll-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  border: none;
  cursor: pointer;
  font-size: 1.1rem;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 999;
  box-shadow: 0 2px 10px rgba(0,0,0,0.2);
}
.scroll-top.show { opacity: 1; visibility: visible; }
.scroll-top:hover { background: var(--accent-hover); }

/* ===== Inquiry Form on Product Page ===== */
.inquiry-form {
  background: var(--bg-light);
  padding: 30px;
  border-radius: var(--radius-lg);
  margin-top: 20px;
}

.col-full { grid-column: 1 / -1; }

/* ===== Placeholder image fallback ===== */
img[src$="placeholder.svg"] {
  background: var(--bg-light);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 200px;
  position: relative;
}
img[src$="placeholder.svg"]::after {
  content: 'Image';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: var(--text-muted);
  font-size: 0.9rem;
}