/* ============================================
   燕回五金 - 深圳市燕回贸易服务有限公司
   极简科技风 (Minimalist Tech Style)
   Inspired by Apple / Stripe design language
   ============================================ */

/* CSS Variables */
:root {
  /* 经典配色：品牌深蓝(主) + 金(点缀)，白底近黑文字，留白骨架保持极简 */
  --primary: #1a3a5c;
  --primary-light: #2d6da3;
  --primary-dark: #0f2540;
  --accent: #c8a050;
  --accent-light: #e8c878;
  --accent-dark: #a07830;
  --bg-white: #ffffff;
  --bg-light: #fafbfc;
  --bg-gray: #f4f6f8;
  --text-dark: #1d1d1f;
  --text-medium: #424245;
  --text-light: #86868b;
  --border-color: #e8e8ed;
  --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --max-width: 1120px;
}

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

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', 'Microsoft YaHei', 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
  color: var(--text-dark);
  background: var(--bg-white);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  letter-spacing: -0.01em;
}

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

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

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

ul, ol {
  list-style: none;
}

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

/* ============================================
   Header / Navigation — Apple-style frosted glass
   ============================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.72);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid rgba(0,0,0,0.06);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.header.scrolled {
  background: rgba(255,255,255,0.88);
  box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.logo img {
  height: 36px;
  width: auto;
}

.logo-text {
  display: flex;
  flex-direction: column;
}

.logo-text .cn {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-dark);
  letter-spacing: 0.5px;
  line-height: 1.2;
  white-space: nowrap;
}

.logo-text .en {
  font-size: 10px;
  color: var(--text-light);
  letter-spacing: 1.5px;
  font-weight: 500;
  text-transform: uppercase;
}

.nav {
  display: flex;
  gap: 24px;
  flex-wrap: nowrap;
}

.nav a {
  font-size: 14px;
  color: var(--text-dark);
  font-weight: 400;
  padding: 6px 0;
  position: relative;
  transition: color var(--transition);
  white-space: nowrap;
}

.nav a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: all var(--transition);
  transform: translateX(-50%);
}

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

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

.header-cta {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.lang-toggle {
  padding: 7px 14px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  background: transparent;
  color: var(--primary);
  border: 1.5px solid var(--border-color);
  cursor: pointer;
  transition: all var(--transition);
  letter-spacing: 0.5px;
}

.lang-toggle:hover {
  border-color: var(--primary);
  background: var(--bg-gray);
}

.contact-btn {
  background: var(--primary);
  color: white;
  padding: 9px 22px;
  border-radius: 980px;
  font-size: 14px;
  font-weight: 500;
  transition: all var(--transition);
  border: none;
  cursor: pointer;
}

.contact-btn:hover {
  background: var(--primary-light);
  transform: scale(1.02);
}

/* 搜索触发器 */
.search-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: transparent;
  border: 1.5px solid var(--border-color);
  color: var(--primary);
  cursor: pointer;
  transition: all var(--transition);
}
.search-toggle:hover {
  border-color: var(--primary);
  background: var(--bg-gray);
}

/* 全站搜索浮层 */
.search-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 30, 50, 0.55);
  backdrop-filter: blur(4px);
  z-index: 1000;
  display: none;
  align-items: flex-start;
  justify-content: center;
  padding-top: 12vh;
}
.search-overlay.open { display: flex; }
.search-modal {
  width: min(680px, 92vw);
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.25);
  overflow: hidden;
  animation: searchPop .2s ease;
}
@keyframes searchPop { from { opacity: 0; transform: translateY(-12px); } to { opacity: 1; transform: none; } }
.search-head {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 16px 18px;
  border-bottom: 1px solid var(--border-color);
}
.search-input {
  flex: 1;
  border: none;
  outline: none;
  font-size: 17px;
  color: var(--text-dark);
  background: transparent;
}
.search-input::placeholder { color: #a0aec0; }
.search-close {
  border: none;
  background: var(--bg-gray);
  color: var(--text-dark);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 15px;
  transition: .2s;
}
.search-close:hover { background: #e2e8f0; }
.search-results {
  max-height: 56vh;
  overflow-y: auto;
  padding: 8px 0 14px;
}
.search-hint {
  padding: 28px 22px;
  text-align: center;
  color: #a0aec0;
  font-size: 14px;
}
.search-group { padding: 6px 0; }
.search-group-title {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--accent);
  padding: 8px 22px 4px;
  text-transform: uppercase;
}
.search-item {
  display: block;
  padding: 10px 22px;
  text-decoration: none;
  color: inherit;
  border-left: 3px solid transparent;
  transition: .15s;
}
.search-item:hover { background: #f7fafc; border-left-color: var(--primary); }
.si-title { display: block; font-size: 15px; font-weight: 600; color: var(--primary); }
.si-sub { display: block; font-size: 12.5px; color: #718096; margin-top: 2px; line-height: 1.5; }

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
}

.mobile-menu-btn span {
  width: 22px;
  height: 2px;
  background: var(--text-dark);
  transition: all var(--transition);
  border-radius: 2px;
}

/* ============================================
   Hero Section — Apple-style clean & bold
   ============================================ */
.hero {
  padding: 180px 0 120px;
  background: var(--bg-white);
  color: var(--text-dark);
  position: relative;
  overflow: hidden;
  text-align: center;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -200px;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(26,58,92,0.06) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
  animation: heroGlowDrift 20s ease-in-out infinite;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -150px;
  left: -150px;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(200,160,80,0.07) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
  animation: heroGlowDrift 24s ease-in-out infinite reverse;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 820px;
  margin: 0 auto;
}

.hero h1 {
  font-size: 56px;
  font-weight: 700;
  margin-bottom: 24px;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--text-dark);
}

.hero h1 .accent {
  color: var(--primary);
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  position: relative;
  display: inline-block;
}

.hero p {
  font-size: 20px;
  color: var(--text-light);
  margin-bottom: 48px;
  line-height: 1.6;
  font-weight: 400;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

.hero-stats {
  display: flex;
  gap: 64px;
  margin-bottom: 48px;
  justify-content: center;
}

.hero-stat {
  display: flex;
  flex-direction: column;
  position: relative;
}

.hero-stat .number {
  font-size: 48px;
  font-weight: 700;
  color: var(--text-dark);
  line-height: 1;
  letter-spacing: -0.02em;
}

.hero-stat .label {
  font-size: 14px;
  color: var(--text-light);
  margin-top: 8px;
  font-weight: 400;
  letter-spacing: 0.5px;
}

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

.btn-primary {
  background: var(--primary);
  color: white;
  padding: 14px 36px;
  border-radius: 980px;
  font-size: 16px;
  font-weight: 500;
  transition: all var(--transition);
  border: none;
  cursor: pointer;
  letter-spacing: 0.3px;
  position: relative;
  overflow: hidden;
}

.btn-primary:hover {
  background: var(--primary-light);
  transform: scale(1.03);
  box-shadow: 0 8px 24px rgba(26,58,92,0.2);
}

.btn-primary:active {
  transform: scale(1.0);
}

.btn-outline {
  background: transparent;
  color: var(--primary);
  padding: 14px 36px;
  border-radius: 980px;
  font-size: 16px;
  font-weight: 500;
  border: 1.5px solid var(--border-color);
  cursor: pointer;
  transition: all var(--transition);
  letter-spacing: 0.3px;
}

.btn-outline:hover {
  border-color: var(--primary);
  background: var(--bg-gray);
  transform: scale(1.03);
}

/* ============================================
   Hero 动态背景 (光晕流动 + 漂浮几何图形 = 背景动图)
   ============================================ */
.hero-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
  z-index: 0;
  pointer-events: none;
}
.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(50px);
}
.hero-glow-1 {
  width: 520px; height: 520px;
  top: -120px; right: -80px;
  background: radial-gradient(circle, rgba(26,58,92,0.12) 0%, transparent 70%);
  animation: heroGlowDrift 18s ease-in-out infinite;
}
.hero-glow-2 {
  width: 460px; height: 460px;
  bottom: -140px; left: -100px;
  background: radial-gradient(circle, rgba(200,160,80,0.10) 0%, transparent 70%);
  animation: heroGlowDrift 22s ease-in-out infinite reverse;
}
.hero-shape { position: absolute; }

/* ---- 浮动五金配件剪影 (蓝图线稿) ---- */
.hero-hardware {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hw-part {
  position: absolute;
  display: block;
  color: var(--primary);
  opacity: 0.15;
  will-change: transform;
}
.hw-part.hw-gold { color: var(--accent); opacity: 0.18; }
.hw-part svg { width: 100%; height: 100%; display: block; }

.hw-1 { width: 116px; height: 116px; top: 14%; left: 7%;  animation: hwFloatA 16s ease-in-out infinite; }
.hw-2 { width: 88px;  height: 88px;  top: 20%; right: 13%; animation: hwFloatB 13s ease-in-out infinite; }
.hw-3 { width: 138px; height: 138px; bottom: 9%; left: 15%; animation: hwFloatA 19s ease-in-out infinite reverse; }
.hw-4 { width: 78px;  height: 78px;  bottom: 21%; right: 17%; animation: hwFloatB 11s ease-in-out infinite; }
.hw-5 { width: 96px;  height: 96px;  top: 56%; left: 4%;  animation: hwFloatB 15s ease-in-out infinite; }
.hw-6 { width: 66px;  height: 66px;  top: 9%;  right: 31%; animation: hwFloatA 12s ease-in-out infinite; }
.hw-7 { width: 104px; height: 104px; bottom: 6%; right: 6%;  animation: hwFloatB 17s ease-in-out infinite; }

@keyframes hwFloatA {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50%      { transform: translateY(-22px) rotate(16deg); }
}
@keyframes hwFloatB {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50%      { transform: translateY(18px) rotate(-13deg); }
}

/* ============================================
   CTA 深蓝光带 (背景色 + 流光动效)
   ============================================ */
.cta-band {
  position: relative;
  padding: 90px 0;
  background: linear-gradient(120deg, var(--primary-dark), var(--primary) 55%, var(--primary-light));
  color: #fff;
  overflow: hidden;
  text-align: center;
}
.cta-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent 35%, rgba(200,160,80,0.22) 50%, transparent 65%);
  background-size: 220% 100%;
  animation: ctaShimmer 9s linear infinite;
  pointer-events: none;
}
.cta-inner {
  position: relative;
  z-index: 1;
  max-width: 760px;
  margin: 0 auto;
  padding: 0 20px;
}
.cta-band h2 {
  font-size: 36px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
  color: #fff;
}
.cta-band p {
  font-size: 17px;
  color: rgba(255,255,255,0.85);
  margin-bottom: 32px;
  line-height: 1.6;
}
.cta-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}
.btn-gold {
  background: var(--accent);
  color: var(--text-dark);
  padding: 14px 36px;
  border-radius: 980px;
  font-size: 16px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
}
.btn-gold:hover {
  background: var(--accent-light);
  transform: scale(1.03);
  box-shadow: 0 8px 24px rgba(200,160,80,0.35);
}
.btn-ghost-light {
  background: transparent;
  color: #fff;
  padding: 14px 36px;
  border-radius: 980px;
  font-size: 16px;
  font-weight: 500;
  border: 1.5px solid rgba(255,255,255,0.55);
  cursor: pointer;
  transition: all var(--transition);
}
.btn-ghost-light:hover {
  border-color: #fff;
  background: rgba(255,255,255,0.12);
  transform: scale(1.03);
}

/* 关于我们板块淡蓝灰底色 (背景色节奏) */
#about { background: #f5f8fc; }

/* ============================================
   背景动图关键帧
   ============================================ */
@keyframes heroGlowDrift {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(-40px, 40px) scale(1.08); }
}
@keyframes floatY {
  0%, 100% { transform: translateY(0); opacity: 0.45; }
  50% { transform: translateY(-22px); opacity: 0.75; }
}
@keyframes ctaShimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* 无障碍：尊重「减少动态」系统偏好 */
@media (prefers-reduced-motion: reduce) {
  .hero-glow, .hero-ring, .hero-dot, .hero-tri, .cta-bg, .hw-part { animation: none !important; }
}

/* ============================================
   Section Common
   ============================================ */
.section {
  padding: 120px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-header h2 {
  font-size: 40px;
  color: var(--text-dark);
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.section-header p {
  font-size: 18px;
  color: var(--text-light);
  max-width: 580px;
  margin: 0 auto;
  line-height: 1.5;
  font-weight: 400;
}

.section-divider {
  width: 40px;
  height: 3px;
  background: var(--primary);
  margin: 20px auto 0;
  border-radius: 2px;
}

/* ============================================
   Categories Section — Minimalist cards
   ============================================ */
.categories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}

.category-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  border: 1px solid var(--border-color);
  transition: all var(--transition);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

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

.category-icon {
  width: 52px;
  height: 52px;
  background: var(--bg-gray);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--primary);
  font-size: 24px;
  transition: all var(--transition);
}

.category-card:hover .category-icon {
  background: var(--primary);
  color: white;
  transform: scale(1.05);
}

.category-card h3 {
  font-size: 18px;
  color: var(--text-dark);
  font-weight: 600;
  margin-bottom: 4px;
  letter-spacing: -0.01em;
}

.category-card .eng-name {
  font-size: 12px;
  color: var(--text-light);
  margin-bottom: 12px;
  font-weight: 400;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.category-card p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.5;
}

.category-count {
  display: inline-block;
  font-size: 12px;
  color: var(--primary);
  font-weight: 600;
  margin-top: 16px;
  padding: 4px 12px;
  background: rgba(26,58,92,0.06);
  border-radius: 100px;
  letter-spacing: 0.3px;
}

/* ============================================
   Products Section
   ============================================ */
.products-section {
  background: var(--bg-light);
}

.filter-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 40px;
  flex-wrap: wrap;
  justify-content: center;
}

.filter-btn {
  padding: 8px 20px;
  border-radius: 980px;
  font-size: 14px;
  font-weight: 500;
  background: var(--bg-white);
  color: var(--text-medium);
  border: 1px solid var(--border-color);
  cursor: pointer;
  transition: all var(--transition);
}

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

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

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}

.product-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-color);
  transition: all var(--transition);
  cursor: pointer;
  position: relative;
}

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

.product-img {
  height: 220px;
  background: var(--bg-gray);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.product-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.product-card:hover .product-img img {
  transform: scale(1.05);
}

.product-img .placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #f0f2f5, #e4e7ec);
  position: relative;
}

.product-img .placeholder svg {
  width: 48px;
  height: 48px;
  opacity: 0.4;
}

.product-img .placeholder svg * {
  stroke: var(--text-light);
  fill: none;
  stroke-width: 2;
}

.product-img .placeholder span {
  font-size: 13px;
  color: var(--text-light);
  font-weight: 400;
  letter-spacing: 0.3px;
}

.product-info {
  padding: 20px 22px;
  position: relative;
  z-index: 1;
}

.product-info h3 {
  font-size: 16px;
  color: var(--text-dark);
  font-weight: 600;
  margin-bottom: 4px;
  letter-spacing: -0.01em;
}

.product-info .eng-name {
  font-size: 12px;
  color: var(--text-light);
  margin-bottom: 10px;
  font-weight: 400;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.product-info .desc {
  font-size: 13px;
  color: var(--text-light);
  line-height: 1.5;
  margin-bottom: 12px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.product-tags {
  display: flex;
  gap: 6px;  flex-wrap: wrap;
}

.product-tag {
  font-size: 11px;
  padding: 3px 10px;
  background: var(--bg-gray);
  color: var(--text-medium);
  border-radius: 100px;
  font-weight: 500;
  letter-spacing: 0.2px;
}

/* ============================================
   Product Detail Modal
   ============================================ */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal-overlay.active {
  display: flex;
}

.modal {
  background: var(--bg-white);
  border-radius: var(--radius-xl);
  max-width: 800px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  box-shadow: var(--shadow-lg);
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 36px;
  height: 36px;
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(10px);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 16px;
  color: var(--text-medium);
  border: none;
  transition: all var(--transition);
  z-index: 10;
  box-shadow: var(--shadow-xs);
}

.modal-close:hover {
  background: var(--text-dark);
  color: white;
  transform: scale(1.05);
}

.modal-images {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  padding: 24px;
}

.modal-images .img-slot {
  height: 240px;
  background: var(--bg-gray);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.modal-images .img-slot img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.modal-body {
  padding: 0 24px 24px;
}

.modal-body h2 {
  font-size: 28px;
  color: var(--text-dark);
  font-weight: 700;
  margin-bottom: 4px;
  letter-spacing: -0.02em;
}

.modal-body .eng-title {
  font-size: 14px;
  color: var(--text-light);
  margin-bottom: 20px;
  letter-spacing: 0.5px;
}

.modal-body .description {
  font-size: 15px;
  color: var(--text-medium);
  line-height: 1.7;
  margin-bottom: 24px;
}

.spec-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 24px;
  border-radius: var(--radius-md);
  overflow: hidden;
}

.spec-table th {
  background: var(--bg-gray);
  color: var(--text-dark);
  padding: 12px 16px;
  font-size: 14px;
  font-weight: 600;
  text-align: left;
}

.spec-table td {
  padding: 12px 16px;
  font-size: 14px;
  border-bottom: 1px solid var(--border-color);
}

.spec-table td:first-child {
  color: var(--text-light);
  font-weight: 500;
  width: 30%;
  background: var(--bg-light);
}

.modal-footer {
  padding: 16px 24px;
  display: flex;
  gap: 12px;
  border-top: 1px solid var(--border-color);
}

/* ============================================
   About / Company Section
   ============================================ */
.about-section {
  background: var(--bg-white);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-text h3 {
  font-size: 36px;
  color: var(--text-dark);
  font-weight: 700;
  margin-bottom: 24px;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.about-text p {
  font-size: 16px;
  color: var(--text-light);
  line-height: 1.7;
  margin-bottom: 20px;
  font-weight: 400;
}

.about-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 32px;
}

.about-feature {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 16px;
  border-radius: var(--radius-md);
  transition: background var(--transition);
}

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

.about-feature .icon {
  width: 40px;
  height: 40px;
  background: var(--bg-gray);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 18px;
  flex-shrink: 0;
}

.about-feature .text h4 {
  font-size: 15px;
  color: var(--text-dark);
  font-weight: 600;
  letter-spacing: -0.01em;
}

.about-feature .text p {
  font-size: 13px;
  color: var(--text-light);
  margin-top: 3px;
}

.about-visual {
  position: relative;
  height: 440px;
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.about-visual::before {
  content: '';
  position: absolute;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(200,160,80,0.2) 0%, transparent 70%);
  top: 0;
  right: -80px;
}

.about-visual::after {
  content: '';
  position: absolute;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255,255,255,0.08) 0%, transparent 70%);
  bottom: 0;
  left: -40px;
}

.about-visual .inner {
  text-align: center;
  color: white;
  position: relative;
  z-index: 1;
}

.about-visual .inner h3 {
  font-size: 48px;
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: 6px;
  letter-spacing: -0.02em;
}

.about-visual .inner p {
  font-size: 18px;
  opacity: 0.8;
  font-weight: 300;
  letter-spacing: 1px;
}

/* ============================================
   Advantages Section
   ============================================ */
.advantages-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.advantage-card {
  text-align: center;
  padding: 40px 24px;
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

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

.advantage-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  background: var(--bg-gray);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 28px;
  transition: all var(--transition);
}

.advantage-card:hover .advantage-icon {
  background: var(--primary);
  color: white;
  transform: scale(1.05);
}

.advantage-card h4 {
  font-size: 17px;
  color: var(--text-dark);
  font-weight: 600;
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}

.advantage-card p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.5;
}

/* ============================================
   Contact Section — Upgraded to match minimalist style
   ============================================ */
.contact-section {
  background: var(--bg-light);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
}

.contact-info h3 {
  font-size: 28px;
  color: var(--text-dark);
  font-weight: 700;
  margin-bottom: 32px;
  letter-spacing: -0.02em;
}

.contact-item {
  display: flex;
  gap: 16px;
  margin-bottom: 24px;
  align-items: flex-start;
}

.contact-item .icon {
  width: 44px;
  height: 44px;
  background: var(--bg-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 18px;
  flex-shrink: 0;
  transition: all var(--transition);
}

.contact-item:hover .icon {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

.contact-item .text h4 {
  font-size: 14px;
  color: var(--text-light);
  font-weight: 500;
  letter-spacing: 0.3px;
  text-transform: uppercase;
}

.contact-item .text p {
  font-size: 16px;
  color: var(--text-dark);
  font-weight: 500;
  margin-top: 2px;
}

.contact-form {
  background: var(--bg-white);
  padding: 40px;
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-color);
}

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

.form-group label {
  font-size: 14px;
  color: var(--text-medium);
  font-weight: 500;
  display: block;
  margin-bottom: 8px;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-md);
  font-size: 15px;
  font-family: inherit;
  transition: border-color var(--transition);
  background: var(--bg-white);
  color: var(--text-dark);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--primary);
  outline: none;
  box-shadow: 0 0 0 4px rgba(26,58,92,0.08);
}

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

.form-submit {
  background: var(--primary);
  color: white;
  padding: 14px 32px;
  border-radius: 980px;
  font-size: 15px;
  font-weight: 500;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  width: 100%;
}

.form-submit:hover {
  background: var(--primary-light);
  transform: scale(1.01);
  box-shadow: 0 8px 24px rgba(26,58,92,0.15);
}

/* ============================================
   Footer — Refined dark style
   ============================================ */
.footer {
  background: #1d1d1f;
  color: #f5f5f7;
  padding: 64px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand .logo-footer {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
}

.footer-brand .logo-footer .cn {
  font-size: 18px;
  font-weight: 600;
  color: #f5f5f7;
}

.footer-brand .logo-footer .en {
  font-size: 10px;
  color: var(--accent);
  letter-spacing: 1.5px;
  text-transform: uppercase;
}

.footer-brand p {
  font-size: 14px;
  color: rgba(245,245,247,0.6);
  line-height: 1.6;
  max-width: 360px;
}

.footer-col h4 {
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 16px;
  color: #f5f5f7;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.footer-col a {
  font-size: 14px;
  color: rgba(245,245,247,0.6);
  display: block;
  padding: 5px 0;
  transition: color var(--transition);
}

.footer-col a:hover {
  color: #f5f5f7;
}

.footer-bottom {
  border-top: 1px solid rgba(245,245,247,0.1);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: rgba(245,245,247,0.4);
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 1024px) {
  .advantages-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .hero h1 {
    font-size: 42px;
  }
  .section-header h2 {
    font-size: 32px;
  }
  .about-text h3 {
    font-size: 28px;
  }
}

@media (max-width: 768px) {
  .nav {
    display: none;
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(20px);
    padding: 20px;
    flex-direction: column;
    gap: 16px;
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
  }
  
  .nav.open {
    display: flex;
  }
  
  .mobile-menu-btn {
    display: flex;
  }
  
  .hero {
    padding: 140px 0 80px;
  }
  
  .hero h1 {
    font-size: 32px;
  }
  
  .hero p {
    font-size: 17px;
  }
  
  .hero-stats {
    gap: 32px;
  }
  
  .hero-stat .number {
    font-size: 36px;
  }
  
  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .section {
    padding: 80px 0;
  }
  
  .section-header h2 {
    font-size: 28px;
  }
  
  .about-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .about-visual {
    height: 320px;
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .contact-form {
    padding: 28px;
  }
  
  .categories-grid {
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  }
  
  .products-grid {
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  }
  
  .modal-images {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero-stats {
    flex-direction: column;
    gap: 20px;
  }
  
  .advantages-grid {
    grid-template-columns: 1fr;
  }
  
  .about-features {
    grid-template-columns: 1fr;
  }
  
  .hero h1 {
    font-size: 28px;
  }
}

/* ============================================
   Animations — SAFE: default visible
   ============================================ */
.fade-in {
  opacity: 1;
  transform: none;
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: none;
}

/* Scroll progress */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  background: var(--primary);
  z-index: 9999;
  transition: width 0.1s linear;
}

/* Back to top */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 44px;
  height: 44px;
  background: var(--text-dark);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  cursor: pointer;
  border: none;
  opacity: 0;
  transform: translateY(10px);
  transition: all var(--transition);
  z-index: 100;
  box-shadow: var(--shadow-md);
}

.back-to-top.visible {
  opacity: 1;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--primary);
  transform: translateY(-2px);
}

/* ============================================
   AI客服聊天窗口 — Minimalist style
   ============================================ */

.chatbot-toggle {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 56px;
  height: 56px;
  background: var(--text-dark);
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  z-index: 1000;
  transition: all var(--transition);
  border: none;
}

.chatbot-toggle:hover {
  background: var(--primary);
  transform: scale(1.08);
}

.chatbot-toggle svg {
  width: 26px;
  height: 26px;
  fill: #fff;
}

.chatbot-toggle .pulse-ring {
  position: absolute;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  border: 2px solid var(--primary);
  animation: chatPulse 2s infinite;
}

@keyframes chatPulse {
  0% { transform: scale(1); opacity: 0.6; }
  100% { transform: scale(1.6); opacity: 0; }
}

.chatbot-window {
  position: fixed;
  bottom: 92px;
  right: 24px;
  width: 380px;
  height: 520px;
  background: #fff;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  z-index: 999;
  display: none;
  flex-direction: column;
  overflow: hidden;
  animation: chatSlideUp 0.3s ease;
}

.chatbot-window.open {
  display: flex;
}

@keyframes chatSlideUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.chat-header {
  background: var(--text-dark);
  color: #fff;
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.chat-header .chat-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 15px;
  font-weight: 500;
}

.chat-header .chat-title .bot-avatar {
  width: 30px;
  height: 30px;
  background: var(--primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
}

.chat-header .close-btn {
  background: none;
  border: none;
  color: #fff;
  font-size: 20px;
  cursor: pointer;
  padding: 4px;
  opacity: 0.7;
  transition: opacity var(--transition);
}

.chat-header .close-btn:hover {
  opacity: 1;
}

.chat-messages {
  flex: 1;
  padding: 20px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
  background: var(--bg-light);
}

.chat-msg {
  max-width: 82%;
  padding: 12px 16px;
  border-radius: var(--radius-lg);
  font-size: 14px;
  line-height: 1.5;
  animation: msgFadeIn 0.3s ease;
}

@keyframes msgFadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.chat-msg.bot {
  background: #fff;
  border: 1px solid var(--border-color);
  align-self: flex-start;
  border-radius: var(--radius-lg) var(--radius-lg) var(--radius-lg) 4px;
}

.chat-msg.user {
  background: var(--primary);
  color: #fff;
  align-self: flex-end;
  border-radius: var(--radius-lg) var(--radius-lg) 4px var(--radius-lg);
}

.chat-msg.transfer {
  background: #fff8e7;
  border: 1px solid var(--accent);
  align-self: flex-start;
}

.chat-msg.admin-reply {
  background: #e8f5e9;
  border: 1px solid #4caf50;
  align-self: flex-start;
  border-radius: var(--radius-lg) var(--radius-lg) var(--radius-lg) 4px;
}

.chat-msg .msg-label {
  font-size: 11px;
  opacity: 0.6;
  margin-bottom: 4px;
}

.chat-msg .msg-time {
  font-size: 10px;
  opacity: 0.4;
  margin-top: 4px;
  text-align: right;
}

.chat-actions {
  padding: 10px 16px;
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.chat-action-btn {
  padding: 6px 14px;
  background: var(--bg-white);
  border: 1px solid var(--border-color);
  border-radius: 980px;
  font-size: 12px;
  cursor: pointer;
  transition: all var(--transition);
  color: var(--text-medium);
  font-weight: 500;
}

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

.chat-input-area {
  padding: 14px 16px;
  border-top: 1px solid var(--border-color);
  display: flex;
  gap: 10px;
  background: #fff;
}

.chat-input-area input {
  flex: 1;
  padding: 10px 16px;
  border: 1.5px solid var(--border-color);
  border-radius: 980px;
  font-size: 14px;
  outline: none;
  transition: border-color var(--transition);
}

.chat-input-area input:focus {
  border-color: var(--primary);
}

.chat-input-area .send-btn {
  width: 40px;
  height: 40px;
  background: var(--primary);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
}

.chat-input-area .send-btn:hover {
  background: var(--primary-light);
}

.chat-input-area .send-btn svg {
  width: 18px;
  height: 18px;
  fill: #fff;
}

/* 客户信息表单（聊天内） */
.chat-info-form {
  padding: 20px;
  background: var(--bg-light);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.chat-info-form h4 {
  color: var(--text-dark);
  margin-bottom: 12px;
  font-size: 14px;
  font-weight: 600;
}

.chat-info-form .form-group {
  margin-bottom: 10px;
}

.chat-info-form input {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: 13px;
}

.chat-info-form input:focus {
  outline: none;
  border-color: var(--primary);
}

.chat-info-form .submit-btn {
  width: 100%;
  padding: 10px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  transition: background var(--transition);
}

.chat-info-form .submit-btn:hover {
  background: var(--primary-light);
}

/* 转人工：微信转接卡片 */
.chat-wechat-card {
  padding: 16px 18px;
  background: linear-gradient(135deg, #eaf3ff 0%, #f7fbff 100%);
  border: 1px solid var(--primary);
  border-radius: var(--radius-md);
  margin: 4px 0;
}
.chat-wechat-card .cwc-title {
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 8px;
  font-size: 14px;
}
.chat-wechat-card .cwc-hint {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 12px;
  line-height: 1.6;
}
.chat-wechat-card .cwc-hint b {
  color: var(--primary);
  font-size: 17px;
  letter-spacing: 1px;
}
.chat-wechat-card .cwc-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.chat-wechat-card .cwc-actions .submit-btn {
  width: auto;
  flex: 1 1 auto;
  padding: 9px 12px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  text-decoration: none;
  text-align: center;
  transition: background var(--transition);
}
.chat-wechat-card .cwc-actions .submit-btn:hover {
  background: var(--primary-light);
}
.chat-wechat-card .cwc-actions .cwc-alt {
  background: #fff;
  color: var(--primary);
  border: 1px solid var(--primary);
}
.chat-wechat-card .cwc-actions .cwc-alt:hover {
  background: #f0f6ff;
}

/* 报价弹窗 */
.quote-modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1001;
}

.quote-modal-overlay.open {
  display: flex;
}

.quote-modal {
  background: #fff;
  border-radius: var(--radius-xl);
  width: 480px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  animation: modalFadeIn 0.3s ease;
}

@keyframes modalFadeIn {
  from { opacity: 0; transform: scale(0.96); }
  to { opacity: 1; transform: scale(1); }
}

.quote-modal .modal-header {
  background: var(--text-dark);
  color: #fff;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
}

.quote-modal .modal-header h3 {
  font-size: 18px;
  font-weight: 600;
}

.quote-modal .modal-close {
  background: none;
  border: none;
  color: #fff;
  font-size: 22px;
  cursor: pointer;
  opacity: 0.7;
  transition: opacity var(--transition);
}

.quote-modal .modal-close:hover {
  opacity: 1;
}

.quote-modal .modal-body {
  padding: 24px;
}

.quote-modal .step-indicator {
  display: flex;
  gap: 8px;
  margin-bottom: 24px;
}

.quote-modal .step {
  flex: 1;
  height: 3px;
  background: var(--border-color);
  border-radius: 2px;
  transition: background var(--transition);
}

.quote-modal .step.active {
  background: var(--primary);
}

.quote-modal .step.done {
  background: var(--primary);
}

.quote-modal .form-section {
  margin-bottom: 18px;
}

.quote-modal .form-section label {
  display: block;
  font-size: 14px;
  color: var(--text-medium);
  margin-bottom: 8px;
  font-weight: 500;
}

.quote-modal .form-section select,
.quote-modal .form-section input {
  width: 100%;
  padding: 12px 14px;
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-md);
  font-size: 15px;
  transition: border-color var(--transition);
  font-family: inherit;
}

.quote-modal .form-section select:focus,
.quote-modal .form-section input:focus {
  outline: none;
  border-color: var(--primary);
}

.quote-result {
  background: var(--bg-light);
  padding: 24px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.quote-result .result-row {
  display: flex;
  justify-content: space-between;
  padding: 8px 0;
  font-size: 15px;
}

.quote-result .result-row .label {
  color: var(--text-light);
}

.quote-result .result-row .value {
  font-weight: 600;
  color: var(--text-dark);
}

.quote-result .result-row.total {
  border-top: 2px solid var(--primary);
  padding-top: 14px;
  margin-top: 10px;
}

.quote-result .result-row.total .value {
  color: var(--primary);
  font-size: 22px;
  font-weight: 700;
}

.quote-modal .modal-footer {
  padding: 16px 24px;
  display: flex;
  gap: 10px;
  border-top: 1px solid var(--border-color);
}

.quote-modal .modal-footer button {
  padding: 12px 20px;
  border-radius: 980px;
  font-size: 14px;
  cursor: pointer;
  transition: all var(--transition);
  font-weight: 500;
}

.quote-modal .modal-footer .btn-primary {
  background: var(--primary);
  color: #fff;
  border: none;
  flex: 1;
}

.quote-modal .modal-footer .btn-primary:hover {
  background: var(--primary-light);
}

.quote-modal .modal-footer .btn-secondary {
  background: var(--bg-white);
  color: var(--text-medium);
  border: 1px solid var(--border-color);
}

.quote-modal .modal-footer .btn-secondary:hover {
  background: var(--bg-gray);
}

.quote-modal .modal-footer .btn-wechat {
  background: #07C160;
  color: #fff;
  border: none;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.quote-modal .modal-footer .btn-wechat:hover {
  background: #06ad56;
}

.quote-modal .modal-footer .btn-wechat.active {
  box-shadow: 0 0 0 3px rgba(7, 193, 96, 0.25);
}

/* 直接加微信 折叠面板（双通道入口） */
.wechat-direct-panel {
  margin: 4px 24px 16px;
  padding: 16px;
  border: 1px dashed #07C160;
  border-radius: 12px;
  background: rgba(7, 193, 96, 0.06);
  animation: wdFadeIn 0.25s ease;
}

@keyframes wdFadeIn {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}

.wechat-direct-panel .wd-head {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  margin-bottom: 12px;
}

.wechat-direct-panel .wd-icon {
  font-size: 22px;
  line-height: 1;
}

.wechat-direct-panel .wd-title {
  font-weight: 600;
  color: var(--text-dark);
  font-size: 15px;
}

.wechat-direct-panel .wd-desc {
  font-size: 12px;
  color: var(--text-medium);
  margin-top: 2px;
}

.wechat-direct-panel .wd-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.wechat-direct-panel .wd-id {
  font-size: 14px;
  color: var(--text-medium);
}

.wechat-direct-panel .wd-id b {
  color: #07C160;
  font-size: 16px;
  letter-spacing: 0.5px;
}

.wechat-direct-panel .wd-copy {
  background: #07C160;
  color: #fff;
  border: none;
  padding: 8px 16px;
  border-radius: 980px;
  font-size: 13px;
  cursor: pointer;
  transition: background var(--transition);
}

.wechat-direct-panel .wd-copy:hover {
  background: #06ad56;
}

.wechat-direct-panel .wd-hint {
  margin-top: 10px;
  font-size: 13px;
  color: #07C160;
  font-weight: 500;
}

@media (max-width: 480px) {
  .wechat-direct-panel { margin: 4px 16px 12px; }
}

/* 聊天窗口响应式 */
@media (max-width: 480px) {
  .chatbot-window {
    width: calc(100% - 16px);
    height: calc(100vh - 120px);
    bottom: 8px;
    right: 8px;
    border-radius: var(--radius-lg);
  }

  .chatbot-toggle {
    bottom: 16px;
    right: 16px;
    width: 48px;
    height: 48px;
  }

  .quote-modal {
    width: calc(100% - 16px);
    border-radius: var(--radius-lg);
  }
}

/* ============================================
   资讯板块 (News Section) — Minimalist style
   ============================================ */

.news-section {
  background: var(--bg-white);
}

.news-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin-bottom: 40px;
}

.news-filter .filter-btn {
  padding: 8px 20px;
  border: 1px solid var(--border-color);
  border-radius: 980px;
  background: var(--bg-white);
  color: var(--text-medium);
  font-size: 14px;
  cursor: pointer;
  transition: all var(--transition);
  font-weight: 500;
}

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

.news-filter .filter-btn.active {
  background: var(--primary);
  color: var(--bg-white);
  border-color: var(--primary);
}

/* 折叠的标签默认不显示，点击"展开全部"后由 JS 去掉该 class */
.news-filter .filter-btn-extra {
  display: none;
}

/* 展开/收起切换按钮，使用品牌金色虚线强调，与常规标签区分 */
.news-filter .filter-btn.filter-toggle {
  border-style: dashed;
  border-color: var(--accent);
  color: var(--accent);
  background: transparent;
  font-weight: 600;
}
.news-filter .filter-btn.filter-toggle:hover {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  min-height: 200px;
}

.news-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-color);
  cursor: pointer;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}

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

.news-card .news-img {
  width: 100%;
  height: 180px;
  overflow: hidden;
  background: var(--bg-gray);
}

.news-card .news-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.news-card:hover .news-img img {
  transform: scale(1.05);
}

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

.news-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 10px;
}

.news-tag {
  display: inline-block;
  padding: 3px 10px;
  background: var(--bg-gray);
  color: var(--text-medium);
  border-radius: 100px;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.2px;
}

.news-card h3 {
  font-size: 16px;
  color: var(--text-dark);
  margin-bottom: 8px;
  line-height: 1.4;
  font-weight: 600;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  letter-spacing: -0.01em;
}

.news-summary {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
}

.news-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--border-color);
  font-size: 13px;
  color: var(--text-light);
}

.news-source {
  color: var(--primary);
  font-weight: 500;
}

.news-ai-badge {
  display: inline-block;
  margin-top: 10px;
  padding: 3px 10px;
  background: var(--text-dark);
  color: #fff;
  border-radius: 100px;
  font-size: 11px;
  font-weight: 600;
  align-self: flex-start;
  letter-spacing: 0.3px;
}

/* SEO 独立详情页链接（卡片内，新标签打开，利于收录与分发） */
.seo-link {
  display: inline-block;
  margin-top: 10px;
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s;
}
.seo-link:hover {
  border-bottom-color: var(--primary);
}

/* 知识中心（内容矩阵）板块 */
.knowledge-section { background: linear-gradient(180deg, #fbfcfe 0%, #f4f7fb 100%); }
.knowledge-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 18px;
  margin-top: 24px;
}
.knowledge-card {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 22px 20px;
  text-decoration: none;
  color: inherit;
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
  min-height: 170px;
}
.knowledge-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 28px rgba(26, 58, 92, 0.12);
  border-color: var(--accent);
}
.knowledge-type {
  align-self: flex-start;
  display: inline-block;
  background: var(--primary);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  padding: 3px 12px;
  border-radius: 20px;
  margin-bottom: 12px;
}
.knowledge-source {
  align-self: flex-start;
  display: inline-block;
  background: #fbfcfe;
  color: var(--primary);
  border: 1px solid #e2e8f0;
  font-size: 11px;
  font-weight: 500;
  padding: 2px 10px;
  border-radius: 20px;
  margin: 0 0 10px 8px;
}
.knowledge-notice-text {
  margin-top: 18px;
  font-size: 12px;
  color: #a0aec0;
  line-height: 1.6;
  border-top: 1px solid #edf2f7;
  padding-top: 14px;
}
.knowledge-card h3 {
  font-size: 17px;
  line-height: 1.45;
  color: var(--primary);
  margin: 0 0 10px;
}
.knowledge-card p {
  font-size: 14px;
  line-height: 1.7;
  color: #718096;
  margin: 0 0 14px;
  flex: 1;
}
.knowledge-more {
  color: var(--accent);
  font-weight: 600;
  font-size: 14px;
}
.knowledge-more {
  margin-top: auto;
}
.knowledge-more-btn-wrap, .knowledge-more {
  text-align: left;
}
.knowledge-section .knowledge-more {
  text-align: center;
  margin-top: 32px;
}
.btn-outline {
  display: inline-block;
  border: 1.5px solid var(--primary);
  color: var(--primary);
  padding: 11px 26px;
  border-radius: 100px;
  font-weight: 600;
  text-decoration: none;
  transition: 0.2s;
}
.btn-outline:hover {
  background: var(--primary);
  color: #fff;
}
.product-info h3 a,
.news-info h3 a {
  color: var(--primary);
  text-decoration: none;
}
.product-info h3 a:hover,
.news-info h3 a:hover {
  color: var(--accent);
}

/* 资讯搜索栏 */
.news-last-refresh {
  font-size: 13px;
  color: var(--text-light);
  margin-top: 8px;
}

.news-search-bar {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.search-input-group {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
  min-width: 200px;
}

.search-text-input {
  flex: 1;
  padding: 10px 16px;
  border: 1.5px solid var(--border-color);
  border-radius: 980px;
  font-size: 14px;
  outline: none;
  transition: border-color var(--transition);
  background: var(--bg-white);
}

.search-text-input:focus {
  border-color: var(--primary);
}

.search-btn {
  padding: 8px 16px;
  border-radius: 980px;
  background: var(--primary);
  color: #fff;
  border: none;
  font-size: 14px;
  cursor: pointer;
  transition: background var(--transition);
}

.search-btn:hover {
  background: var(--primary-light);
}

.search-clear-btn {
  padding: 8px 12px;
  border-radius: 980px;
  background: transparent;
  color: var(--text-light);
  border: 1px solid var(--border-color);
  font-size: 13px;
  cursor: pointer;
  transition: all var(--transition);
}

.search-clear-btn:hover {
  border-color: var(--text-light);
  color: var(--text-medium);
}

.search-date-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

.search-date-input {
  padding: 8px 12px;
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: 13px;
  outline: none;
  transition: border-color var(--transition);
  background: var(--bg-white);
  color: var(--text-medium);
}

.search-date-input:focus {
  border-color: var(--primary);
}

.date-separator {
  color: var(--text-light);
  font-size: 14px;
}

.news-history-btn {
  padding: 8px 20px;
  border-radius: 980px;
  background: var(--bg-gray);
  color: var(--text-medium);
  border: 1px solid var(--border-color);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
}

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

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

/* 资讯加载/空状态 */
.news-loading {
  grid-column: 1 / -1;
  text-align: center;
  padding: 60px 20px;
  color: var(--text-light);
  font-size: 15px;
}

.news-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 60px 20px;
}

.news-empty-icon {
  font-size: 3rem;
  margin-bottom: 16px;
}

.news-empty p {
  color: var(--text-light);
  margin-bottom: 8px;
}

.news-empty-hint {
  font-size: 14px;
  color: var(--text-light);
}

/* 分页 */
.news-pagination {
  margin-top: 48px;
  text-align: center;
}

.pagination-inner {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.page-btn {
  padding: 8px 14px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background: var(--bg-white);
  color: var(--text-medium);
  font-size: 14px;
  cursor: pointer;
  transition: all var(--transition);
}

.page-btn:hover:not(.disabled):not(.active) {
  border-color: var(--primary);
  color: var(--primary);
}

.page-btn.active {
  background: var(--primary);
  color: var(--bg-white);
  border-color: var(--primary);
}

.page-btn.disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.page-ellipsis {
  padding: 0 4px;
  color: var(--text-light);
}

/* 资讯详情弹窗 */
.news-modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 10001;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.news-modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.news-detail-modal {
  width: 90%;
  max-width: 780px;
  max-height: 85vh;
  overflow-y: auto;
  background: var(--bg-white);
  border-radius: var(--radius-xl);
  padding: 0;
  position: relative;
  box-shadow: var(--shadow-lg);
}

.news-detail-modal .modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  border: none;
  font-size: 16px;
  cursor: pointer;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-xs);
  transition: all var(--transition);
  color: var(--text-medium);
}

.news-detail-modal .modal-close:hover {
  background: var(--text-dark);
  color: white;
  transform: scale(1.05);
}

.news-detail-header {
  padding: 40px 40px 20px;
  border-bottom: 1px solid var(--border-color);
}

.news-detail-header h2 {
  font-size: 24px;
  color: var(--text-dark);
  margin-bottom: 14px;
  line-height: 1.4;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.news-detail-meta {
  display: flex;
  gap: 20px;
  font-size: 14px;
  color: var(--text-light);
  margin-bottom: 12px;
}

.news-detail-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.news-detail-content {
  padding: 28px 40px;
  line-height: 1.8;
  color: var(--text-medium);
  font-size: 16px;
}

.news-detail-content p {
  margin-bottom: 16px;
}

/* AI分析卡片 */
.news-ai-analysis {
  margin: 0 40px 28px;
  padding: 28px;
  background: var(--bg-light);
  border-radius: var(--radius-md);
  border-left: 3px solid var(--primary);
}

.news-ai-analysis .ai-header {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.news-ai-analysis .ai-header::before {
  content: '';
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary);
}

.news-ai-analysis .ai-content {
  font-size: 15px;
  color: var(--text-medium);
  line-height: 1.75;
  white-space: pre-line;
}

.news-detail-keywords {
  padding: 0 40px 28px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.keyword-tag {
  font-size: 13px;
  color: var(--primary);
  padding: 3px 12px;
  background: rgba(26, 58, 92, 0.06);
  border-radius: 100px;
  font-weight: 500;
}

/* 响应式: 资讯板块 */
@media (max-width: 1024px) {
  .news-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .news-search-bar {
    flex-direction: column;
    align-items: stretch;
  }

  .search-input-group {
    min-width: 100%;
  }

  .search-date-group {
    width: 100%;
    justify-content: center;
  }
}

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

  .news-search-bar {
    flex-direction: column;
    gap: 10px;
  }

  .search-date-group {
    flex-wrap: wrap;
    justify-content: center;
  }

  .search-date-input {
    width: 130px;
  }

  .news-history-btn {
    width: 100%;
    text-align: center;
  }

  .news-detail-header {
    padding: 28px 20px 16px;
  }

  .news-detail-content {
    padding: 20px;
  }

  .news-ai-analysis {
    margin: 0 20px 20px;
    padding: 20px;
  }

  .news-detail-keywords {
    padding: 0 20px 20px;
  }

  .news-detail-modal {
    width: calc(100% - 16px);
    max-height: 90vh;
  }
}

/* ============================================================
   科技感 Engagement 升级
   粒子网络 / 滚动入场 / 数字滚动 / 产品卡3D / 实时动态 / 鼠标辉光
   ============================================================ */

/* ---- Hero 粒子网络画布 ---- */
.hero-particles {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

/* Hero 标题渐变流光 */
.hero h1 .accent {
  background-size: 220% auto;
  animation: accentShimmer 5s linear infinite;
}
@keyframes accentShimmer {
  0%   { background-position: 0% center; }
  100% { background-position: 220% center; }
}

/* ---- 滚动入场 .reveal ---- */
.reveal {
  opacity: 0;
  transform: translateY(42px);
  transition: opacity 0.8s cubic-bezier(0.16,1,0.3,1),
              transform 0.8s cubic-bezier(0.16,1,0.3,1);
  transition-delay: var(--d, 0s);
  will-change: opacity, transform;
}
.reveal.in {
  opacity: 1;
  transform: translateY(0);
}

/* ---- 数据实力数字看板 ---- */
.stats-strip {
  position: relative;
  background-color: #0c1f33;
  background-image:
    linear-gradient(rgba(122,166,214,0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(122,166,214,0.07) 1px, transparent 1px);
  background-size: 38px 38px;
  color: #fff;
  padding: 64px 0;
  overflow: hidden;
}
.stats-strip::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 18% 28%, rgba(26,58,92,0.55), transparent 46%),
    radial-gradient(circle at 82% 72%, rgba(200,160,80,0.20), transparent 46%);
  pointer-events: none;
}
.stats-grid {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-around;
  gap: 36px;
}
.stat-item {
  text-align: center;
  flex: 1 1 160px;
  min-width: 150px;
}
.stat-num {
  font-size: 52px;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, #ffffff, var(--accent-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: inline-block;
}
.stat-num .suffix {
  -webkit-text-fill-color: var(--accent);
}
.stat-label {
  margin-top: 12px;
  font-size: 15px;
  color: rgba(255,255,255,0.78);
  letter-spacing: 0.5px;
}
.stat-divider {
  width: 1px;
  align-self: stretch;
  background: linear-gradient(transparent, rgba(122,166,214,0.3), transparent);
}

/* ---- 信任背书墙 (Trust Badges) ---- */
.trust-strip {
  background: var(--bg-gray, #f5f8fc);
  padding: 56px 0;
  border-top: 1px solid var(--border-color, #e6ebf2);
  border-bottom: 1px solid var(--border-color, #e6ebf2);
}
.trust-head {
  text-align: center;
  font-size: 18px;
  font-weight: 600;
  color: var(--text-dark, #1d1d1f);
  letter-spacing: 0.5px;
  margin-bottom: 32px;
}
.trust-badges {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px 28px;
  max-width: 1000px;
  margin: 0 auto;
}
.trust-badge {
  display: flex;
  align-items: center;
  gap: 12px;
  background: #fff;
  border: 1px solid var(--border-color, #e6ebf2);
  border-radius: 14px;
  padding: 14px 20px;
  min-width: 200px;
  flex: 1 1 200px;
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}
.trust-badge:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 26px rgba(26,58,92,0.10);
  border-color: var(--primary, #1a3a5c);
}
.tb-icon {
  flex: none;
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary, #1a3a5c), var(--primary-light, #2d6da3));
  color: #fff;
}
.tb-icon svg { width: 22px; height: 22px; }
.tb-text { display: flex; flex-direction: column; line-height: 1.25; }
.tb-text strong { font-size: 15px; font-weight: 700; color: var(--text-dark, #1d1d1f); }
.tb-text em {
  font-style: normal;
  font-size: 12px;
  color: var(--text-light, #6b7785);
  margin-top: 2px;
}
.trust-note {
  text-align: center;
  margin-top: 28px;
  font-size: 14px;
  color: var(--text-light, #6b7785);
  letter-spacing: 0.3px;
}

/* ---- 移动端底部固定询盘条 ---- */
.mobile-cta {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 999;
  display: none;
  gap: 10px;
  padding: 10px 12px calc(10px + env(safe-area-inset-bottom));
  background: rgba(255,255,255,0.94);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-top: 1px solid var(--border-color, #e6ebf2);
  box-shadow: 0 -6px 24px rgba(0,0,0,0.08);
}
.mc-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 13px 0;
  border-radius: 980px;
  font-size: 15px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.mc-btn:active { transform: scale(0.97); }
.mc-ico { font-size: 17px; line-height: 1; }
.mc-chat {
  background: #fff;
  color: var(--primary, #1a3a5c);
  border: 1.5px solid var(--primary, #1a3a5c);
}
.mc-quote {
  background: linear-gradient(135deg, var(--accent, #c8a050), var(--accent-light, #e8c878));
  color: var(--text-dark, #1d1d1f);
  box-shadow: 0 6px 18px rgba(200,160,80,0.32);
}
@media (max-width: 768px) {
  .mobile-cta { display: flex; }
  /* 移动端隐藏独立浮动客服按钮，避免与底栏重叠（底栏"在线咨询"已覆盖该功能） */
  .chatbot-toggle { display: none; }
  /* 移动端底栏占位，避免遮挡页脚内容 */
  body { padding-bottom: 64px; }
}


/* ---- 产品卡 3D 悬浮 + 辉光 + 快览 + 徽标 ---- */
.product-card.reveal {
  transition: opacity 0.8s ease,
              transform 0.35s cubic-bezier(0.16,1,0.3,1),
              box-shadow 0.35s ease,
              border-color 0.35s ease;
}
.product-card { transform-style: preserve-3d; }
.product-card.reveal.in:hover {
  transform: translateY(-6px) scale(1.01) !important;
}
.product-card::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(240px circle at var(--mx,50%) var(--my,50%), rgba(200,160,80,0.22), transparent 62%);
  opacity: 0;
  transition: opacity 0.35s ease;
  pointer-events: none;
  z-index: 2;
}
.product-card:hover::after { opacity: 1; }
.product-card .badge {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 3;
  padding: 4px 12px;
  border-radius: 980px;
  font-size: 12px;
  font-weight: 600;
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  box-shadow: 0 4px 12px rgba(26,58,92,0.3);
}
.product-card .badge.hot {
  background: linear-gradient(135deg, #e0532f, #f5a623);
}
.product-card .badge.hot::before {
  content: '';
  display: inline-block;
  width: 6px; height: 6px;
  margin-right: 5px;
  border-radius: 50%;
  background: #fff;
  vertical-align: middle;
  animation: badgePulse 1.3s infinite;
}
@keyframes badgePulse {
  0%   { box-shadow: 0 0 0 0 rgba(255,255,255,0.7); }
  70%  { box-shadow: 0 0 0 6px rgba(255,255,255,0); }
  100% { box-shadow: 0 0 0 0 rgba(255,255,255,0); }
}
.product-card .quick-view {
  position: absolute;
  top: 14px;
  right: 14px;
  z-index: 3;
  padding: 6px 14px;
  border-radius: 980px;
  font-size: 13px;
  font-weight: 500;
  color: var(--primary);
  background: rgba(255,255,255,0.92);
  border: 1px solid var(--border-color);
  opacity: 0;
  transform: translateY(-8px);
  transition: all 0.3s ease;
  cursor: pointer;
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
}
.product-card:hover .quick-view { opacity: 1; transform: translateY(0); }
.product-card .quick-view:hover { background: #fff; border-color: var(--primary); }

/* ---- 分类卡 / 优势卡 悬浮增强 ---- */
.category-card { transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease; }
.category-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 18px 40px rgba(26,58,92,0.14);
  border-color: var(--primary);
}
.category-card:hover .category-icon {
  transform: translateY(-4px) scale(1.08);
  filter: drop-shadow(0 6px 14px rgba(200,160,80,0.45));
}
.advantage-card { transition: transform 0.35s ease, box-shadow 0.35s ease; }
.advantage-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}
.advantage-card:hover .advantage-icon {
  transform: scale(1.14) rotate(-5deg);
}

/* ---- 实时动态跑马灯（悬浮） ---- */
.activity-ticker {
  position: fixed;
  left: 24px;
  bottom: 24px;
  z-index: 998;
  display: flex;
  align-items: center;
  gap: 10px;
  max-width: 330px;
  padding: 11px 16px;
  border-radius: 14px;
  background: rgba(255,255,255,0.82);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  box-shadow: 0 12px 32px rgba(26,58,92,0.14);
  font-size: 13px;
  color: var(--text-medium);
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.activity-ticker.show { opacity: 1; transform: translateY(0); }
.activity-ticker .live-dot {
  flex: 0 0 auto;
  width: 9px; height: 9px;
  border-radius: 50%;
  background: #2ecc71;
  animation: livePulse 1.6s infinite;
}
@keyframes livePulse {
  0%   { box-shadow: 0 0 0 0 rgba(46,204,113,0.6); }
  70%  { box-shadow: 0 0 0 10px rgba(46,204,113,0); }
  100% { box-shadow: 0 0 0 0 rgba(46,204,113,0); }
}
.activity-ticker .tick-text { line-height: 1.45; }
.activity-ticker .tick-text b { color: var(--primary); font-weight: 600; }

/* ---- 鼠标跟随辉光 ---- */
.cursor-glow {
  position: fixed;
  top: 0; left: 0;
  width: 460px; height: 460px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(26,58,92,0.06), transparent 60%);
  transform: translate(-50%,-50%);
  pointer-events: none;
  z-index: 1;
  opacity: 0;
  transition: opacity 0.4s ease;
  mix-blend-mode: multiply;
}
.cursor-glow.active { opacity: 1; }

/* ---- 响应式（科技模块） ---- */
@media (max-width: 768px) {
  .activity-ticker { display: none; }
  .stat-num { font-size: 40px; }
  .stat-divider { display: none; }
  .stats-grid { gap: 24px 12px; }
}

/* ---- 减少动态偏好 ---- */
@media (prefers-reduced-motion: reduce) {
  .hero-particles, .reveal, .cursor-glow, .activity-ticker,
  .product-card::after, .stat-num, .badge.hot::before { animation: none !important; transition: none !important; }
  .reveal { opacity: 1 !important; transform: none !important; }
}