/* ===== 增强的滚动动画 ===== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-40px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(40px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

@keyframes pulse-glow {
  0%, 100% {
    box-shadow: 0 0 20px rgba(201,168,76,0.3);
  }
  50% {
    box-shadow: 0 0 40px rgba(201,168,76,0.6);
  }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* ===== Hero 几何背景网格 ===== */
@keyframes gridPulse {
  0%, 100% { opacity: 0.03; }
  50% { opacity: 0.06; }
}

@keyframes heroParticleFloat {
  0% { transform: translateY(0) translateX(0) scale(1); opacity: 0; }
  10% { opacity: 0.6; }
  90% { opacity: 0.6; }
  100% { transform: translateY(-100vh) translateX(20px) scale(1.5); opacity: 0; }
}

/* ===== 滚动入场动画类 ===== */
.scroll-reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.scroll-reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.scroll-reveal-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.scroll-reveal-left.visible {
  opacity: 1;
  transform: translateX(0);
}
.scroll-reveal-right {
  opacity: 0;
  transform: translateX(50px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.scroll-reveal-right.visible {
  opacity: 1;
  transform: translateX(0);
}
.scroll-reveal-delay-1 { transition-delay: 0.1s; }
.scroll-reveal-delay-2 { transition-delay: 0.2s; }
.scroll-reveal-delay-3 { transition-delay: 0.3s; }
.scroll-reveal-delay-4 { transition-delay: 0.4s; }

/* ===== 表格行滚动入场 ===== */
.table-row-animate {
  opacity: 0;
  transform: translateX(-20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.table-row-animate.visible {
  opacity: 1;
  transform: translateX(0);
}

/* ===== 鼠标滚轮指示器 ===== */
@keyframes mouseScroll {
  0% { transform: translateY(0); opacity: 1; }
  50% { transform: translateY(8px); opacity: 0.5; }
  100% { transform: translateY(0); opacity: 1; }
}

/* ===== 限时优惠横幅 ===== */
.promo-banner {
  background: linear-gradient(90deg, #1a0a00 0%, #2a1500 50%, #1a0a00 100%);
  border-bottom: 2px solid var(--gold);
  padding: 12px 0;
  position: relative;
  z-index: 1001;
  overflow: hidden;
}
.promo-banner::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 200%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(201,168,76,0.08), transparent);
  animation: promo-shimmer 3s infinite;
}
@keyframes promo-shimmer {
  0% { transform: translateX(-50%); }
  100% { transform: translateX(50%); }
}
.promo-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}
.promo-icon { font-size: 1.2rem; animation: float 2s ease-in-out infinite; }
.promo-text {
  color: var(--gray-light);
  font-size: 0.85rem;
  text-align: center;
}
.promo-text strong {
  color: var(--gold);
}
.promo-countdown {
  color: var(--gold);
  font-size: 0.8rem;
  background: rgba(201,168,76,0.15);
  padding: 4px 14px;
  border-radius: 20px;
  border: 1px solid rgba(201,168,76,0.3);
  white-space: nowrap;
}
.promo-countdown strong {
  font-size: 1rem;
}
.promo-close {
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--gray);
  font-size: 1.2rem;
  cursor: pointer;
  padding: 4px 8px;
  transition: color 0.3s;
}
.promo-close:hover { color: var(--white); }

/* ===== Hero 在线状态 ===== */
.hero-online-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 28px;
  padding: 8px 20px;
  background: rgba(39,174,96,0.1);
  border: 1px solid rgba(39,174,96,0.3);
  border-radius: 20px;
  font-size: 0.82rem;
  color: rgba(255,255,255,0.8);
  animation: slideDown 0.8s ease-out 0.25s both;
}
.online-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #27ae60;
  animation: online-pulse 2s ease-in-out infinite;
  box-shadow: 0 0 8px rgba(39,174,96,0.6);
}
@keyframes online-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

/* ===== 价格参考区块 ===== */
.price-guide-section {
  background: linear-gradient(135deg, var(--black) 0%, var(--dark) 50%, var(--black) 100%);
  padding: 80px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.price-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 32px;
}
.price-card {
  background: linear-gradient(145deg, var(--dark2) 0%, var(--dark3) 100%);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  position: relative;
}
.price-card:hover {
  transform: translateY(-8px);
  border-color: rgba(201,168,76,0.3);
  box-shadow: 0 20px 50px rgba(0,0,0,0.4);
}
.price-card-featured {
  border-color: rgba(201,168,76,0.4);
  background: linear-gradient(145deg, rgba(201,168,76,0.08) 0%, var(--dark2) 100%);
}
.price-card-featured:hover {
  border-color: var(--gold);
  box-shadow: 0 20px 50px rgba(201,168,76,0.2), 0 0 60px rgba(201,168,76,0.08);
}
.price-card-badge {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  background: linear-gradient(135deg, var(--gold), var(--gold-dark));
  color: var(--black);
  text-align: center;
  padding: 6px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 2px;
}
.price-card-header {
  padding: 36px 28px 24px;
  text-align: center;
}
.price-card-featured .price-card-header {
  padding-top: 48px;
}
.price-tier {
  font-size: 0.88rem;
  color: var(--gray);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.price-range {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--white);
}
.price-range span {
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--gray);
}
.price-card-featured .price-range {
  color: var(--gold);
}
.price-card-body {
  padding: 0 28px 32px;
}
.price-features {
  list-style: none;
  margin-bottom: 28px;
}
.price-features li {
  padding: 8px 0;
  color: var(--gray-light);
  font-size: 0.88rem;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}
.price-features li:last-child {
  border-bottom: none;
}
.price-cta {
  display: block;
  text-align: center;
  padding: 14px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.9rem;
  transition: all 0.3s ease;
  border: 1.5px solid var(--gold);
  color: var(--gold);
}
.price-cta:hover {
  background: var(--gold);
  color: var(--black);
  transform: translateY(-2px);
}
.price-cta-gold {
  background: linear-gradient(135deg, var(--gold), var(--gold-dark));
  color: var(--black);
  border-color: transparent;
  box-shadow: 0 4px 20px rgba(201,168,76,0.4);
}
.price-cta-gold:hover {
  background: linear-gradient(135deg, var(--gold-light), var(--gold));
  box-shadow: 0 8px 30px rgba(201,168,76,0.5);
}
.price-note {
  text-align: center;
  color: var(--gray);
  font-size: 0.82rem;
  line-height: 1.8;
}
.price-note a {
  text-decoration: underline;
  transition: color 0.3s;
}
.price-note a:hover {
  color: var(--gold-light);
}

/* ===== FAQ 手风琴（竞品分析：增强交互） ===== */
.faq-accordion {
  max-width: 800px;
  margin: 0 auto;
}
.faq-acc-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
  transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  background: var(--dark2);
  position: relative;
}
.faq-acc-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--gold);
  transform: scaleY(0);
  transition: transform 0.3s ease;
}
.faq-acc-item:hover {
  border-color: rgba(201,168,76,0.3);
  box-shadow: 0 4px 20px rgba(0,0,0,0.2);
}
.faq-acc-item:hover::before {
  transform: scaleY(1);
}
.faq-acc-item.open {
  border-color: rgba(201,168,76,0.4);
  box-shadow: 0 8px 30px rgba(201,168,76,0.15);
  background: linear-gradient(135deg, var(--dark2) 0%, rgba(201,168,76,0.05) 100%);
}
.faq-acc-item.open::before {
  transform: scaleY(1);
}
.faq-acc-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  padding: 18px 24px;
  background: none;
  border: none;
  color: var(--white);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  text-align: left;
  font-family: inherit;
  line-height: 1.5;
}
.faq-acc-question:hover {
  color: var(--gold);
}
.faq-acc-arrow {
  color: var(--gold);
  font-size: 0.7rem;
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  flex-shrink: 0;
  margin-left: 16px;
  display: inline-block;
}
.faq-acc-item.open .faq-acc-arrow {
  transform: rotate(180deg);
}
.faq-acc-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94), 
              padding 0.3s ease, 
              opacity 0.3s ease;
  opacity: 0;
}
.faq-acc-item.open .faq-acc-answer {
  max-height: 300px;
  opacity: 1;
}
.faq-acc-answer p {
  padding: 0 24px 20px;
  color: var(--gray-light);
  font-size: 0.9rem;
  line-height: 1.8;
  margin: 0;
}

/* ===== 响应式：价格卡片 ===== */
@media (max-width: 900px) {
  .price-cards {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
  }
}
@media (max-width: 768px) {
  .promo-inner {
    justify-content: flex-start;
    padding-right: 30px;
  }
  .promo-text {
    font-size: 0.78rem;
  }
}

@media (max-width: 480px) {
  .promo-banner {
    padding: 10px 0;
  }
  .promo-text {
    font-size: 0.72rem;
  }
  .hero-online-status {
    font-size: 0.75rem;
    padding: 6px 14px;
    margin-bottom: 20px;
  }
}

/* ===== 品牌发光效果 ===== */
@keyframes brandGlow {
  0%, 100% { filter: drop-shadow(0 0 8px rgba(201,168,76,0.2)); }
  50% { filter: drop-shadow(0 0 20px rgba(201,168,76,0.5)); }
}

/* ===== 卡片悬停光效追踪 ===== */
.card-glow {
  position: relative;
  overflow: hidden;
}
.card-glow::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(201,168,76,0.08) 0%, transparent 60%);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s ease;
}
.card-glow:hover::after {
  opacity: 1;
}

/* ===== 增强的产品卡片 ===== */
.product-card-enhanced {
  position: relative;
  background: linear-gradient(145deg, var(--dark2) 0%, var(--dark3) 100%);
  border-radius: 16px;
  overflow: hidden;
  transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  border: 1px solid var(--border);
}

.product-card-enhanced::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--gold), var(--gold-light), var(--gold));
  transform: scaleX(0);
  transition: transform 0.4s ease;
}

.product-card-enhanced:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0,0,0,0.5), 0 0 60px rgba(201,168,76,0.15);
  border-color: rgba(201,168,76,0.3);
}

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

.product-card-enhanced .product-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  background: linear-gradient(135deg, var(--gold), var(--gold-dark));
  color: var(--black);
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  z-index: 10;
  animation: pulse-glow 2s ease-in-out infinite;
}

/* ===== 增强的CTA按钮（竞品分析：脉冲+悬浮效果） ===== */
.btn-primary-enhanced {
  background: linear-gradient(135deg, var(--gold) 0%, var(--gold-dark) 100%);
  color: var(--black);
  padding: 14px 36px;
  font-size: 16px;
  font-weight: 700;
  border-radius: 50px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(201,168,76,0.4);
  transition: all 0.3s ease;
  animation: ctaPulse 2.5s ease-in-out infinite;
}
@keyframes ctaPulse {
  0%, 100% {
    box-shadow: 0 4px 20px rgba(201,168,76,0.4), 0 0 0 0 rgba(201,168,76,0.4);
  }
  50% {
    box-shadow: 0 8px 30px rgba(201,168,76,0.6), 0 0 0 10px rgba(201,168,76,0.1);
  }
}
.btn-primary-enhanced::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
  animation: shimmer 2s infinite;
}
.btn-primary-enhanced:hover {
  transform: translateY(-4px) scale(1.02);
  box-shadow: 0 12px 40px rgba(201,168,76,0.7), 0 0 0 15px rgba(201,168,76,0.05);
}
.btn-primary-enhanced::after {
  content: '→';
  margin-left: 8px;
  transition: transform 0.3s ease;
  display: inline-block;
}
.btn-primary-enhanced:hover::after {
  transform: translateX(6px);
}

/* ===== 增强的信任徽章 ===== */
.trust-badge-enhanced {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: rgba(201,168,76,0.1);
  border: 1px solid rgba(201,168,76,0.3);
  border-radius: 8px;
  font-size: 13px;
  color: var(--gold-light);
  transition: all 0.3s ease;
}

.trust-badge-enhanced:hover {
  background: rgba(201,168,76,0.15);
  transform: translateY(-2px);
}

.trust-badge-enhanced .badge-icon {
  font-size: 16px;
}

/* ===== 增强的客户评价卡片（竞品分析：玻璃态效果） ===== */
.review-card-enhanced {
  background: linear-gradient(145deg, rgba(26,26,26,0.8) 0%, rgba(34,34,34,0.6) 100%);
  backdrop-filter: blur(12px);
  border-radius: 16px;
  padding: 28px;
  border: 1px solid rgba(201,168,76,0.1);
  transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  position: relative;
  overflow: hidden;
}
.review-card-enhanced::before {
  content: '"';
  position: absolute;
  top: 10px;
  left: 20px;
  font-size: 80px;
  color: rgba(201,168,76,0.08);
  font-family: Georgia, serif;
  line-height: 1;
  transition: color 0.4s ease;
}
.review-card-enhanced:hover::before {
  color: rgba(201,168,76,0.15);
}
.review-card-enhanced::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 0%, rgba(201,168,76,0.03) 100%);
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
}
.review-card-enhanced:hover {
  transform: translateY(-8px) scale(1.02);
  border-color: rgba(201,168,76,0.3);
  box-shadow: 0 20px 50px rgba(0,0,0,0.5), 0 0 40px rgba(201,168,76,0.1);
}
.review-card-enhanced:hover::after {
  opacity: 1;
}
.review-card-enhanced .review-stars {
  color: var(--gold);
  font-size: 18px;
  letter-spacing: 2px;
  margin-bottom: 16px;
  text-shadow: 0 0 10px rgba(201,168,76,0.3);
}
.review-card-enhanced .review-text {
  color: var(--text);
  line-height: 1.9;
  margin-bottom: 20px;
  font-style: italic;
  position: relative;
  z-index: 1;
}

/* ===== 增强的品牌亮点条 ===== */
.highlight-item-enhanced {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 24px;
  background: linear-gradient(135deg, rgba(201,168,76,0.05) 0%, rgba(201,168,76,0.02) 100%);
  border-radius: 12px;
  border: 1px solid rgba(201,168,76,0.1);
  transition: all 0.3s ease;
}

.highlight-item-enhanced:hover {
  background: linear-gradient(135deg, rgba(201,168,76,0.1) 0%, rgba(201,168,76,0.05) 100%);
  border-color: rgba(201,168,76,0.3);
  transform: translateX(5px);
}

.highlight-item-enhanced .highlight-icon {
  font-size: 32px;
  filter: drop-shadow(0 0 8px rgba(201,168,76,0.3));
}

/* ===== 增强的对比表格 ===== */
.comparison-table-enhanced {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 10px 40px rgba(0,0,0,0.3);
}

.comparison-table-enhanced thead {
  background: linear-gradient(135deg, var(--dark) 0%, var(--dark2) 100%);
}

.comparison-table-enhanced th {
  padding: 18px 24px;
  text-align: left;
  font-weight: 600;
  color: var(--white);
  border-bottom: 2px solid var(--gold);
}

.comparison-table-enhanced th.highlight-col {
  background: linear-gradient(135deg, rgba(201,168,76,0.2) 0%, rgba(201,168,76,0.1) 100%);
  color: var(--gold);
}

.comparison-table-enhanced tbody tr {
  transition: background 0.3s ease;
}

.comparison-table-enhanced tbody tr:hover {
  background: rgba(201,168,76,0.05);
}

.comparison-table-enhanced td {
  padding: 16px 24px;
  border-bottom: 1px solid var(--border);
}

.comparison-table-enhanced td.highlight-col {
  background: rgba(201,168,76,0.05);
  font-weight: 600;
}

/* ===== 小米YU7专区 ===== */
.yu7-section {
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
  padding: 60px 0;
  border-bottom: 1px solid var(--border);
}
.yu7-banner {
  text-align: center;
  padding: 40px;
  background: rgba(255,255,255,0.03);
  border-radius: 16px;
  border: 1px solid rgba(201,168,76,0.3);
  position: relative;
  overflow: hidden;
}
.yu7-banner::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(201,168,76,0.1) 0%, transparent 70%);
  animation: yu7-glow 4s ease-in-out infinite;
}
@keyframes yu7-glow {
  0%, 100% { opacity: 0.5; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.1); }
}
.yu7-badge {
  display: inline-block;
  background: linear-gradient(135deg, var(--gold), var(--gold-dark));
  color: var(--black);
  padding: 8px 20px;
  border-radius: 20px;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 20px;
  position: relative;
  z-index: 1;
}
.yu7-title {
  font-size: 32px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 16px;
  position: relative;
  z-index: 1;
}
.yu7-desc {
  font-size: 18px;
  color: var(--gray-light);
  margin-bottom: 30px;
  position: relative;
  z-index: 1;
}
.yu7-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-bottom: 20px;
  position: relative;
  z-index: 1;
}
.yu7-btn {
  display: inline-block;
  background: linear-gradient(135deg, var(--gold), var(--gold-dark));
  color: var(--black);
  padding: 14px 32px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 16px;
  transition: all 0.3s ease;
}
.yu7-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(201,168,76,0.4);
}
.yu7-btn-outline {
  display: inline-block;
  background: transparent;
  color: var(--gold);
  padding: 14px 32px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 16px;
  border: 2px solid var(--gold);
  transition: all 0.3s ease;
}
.yu7-btn-outline:hover {
  background: var(--gold);
  color: var(--black);
}
.yu7-note {
  font-size: 14px;
  color: var(--gray);
  position: relative;
  z-index: 1;
}

/* ===== 客户评价轮播 ===== */
.testimonials-section {
  background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
  padding: 80px 0;
  border-top: 1px solid #e0e0e0;
}
.testimonials-carousel {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin: 40px 0;
}
.testimonial-card {
  background: white;
  border: 1px solid #e0e0e0;
  border-radius: 12px;
  padding: 24px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
  transition: all 0.3s ease;
}
.testimonial-card:hover {
  box-shadow: 0 8px 24px rgba(201,168,76,0.15);
  border-color: rgba(201,168,76,0.3);
  transform: translateY(-4px);
}
.testimonial-stars {
  font-size: 16px;
  margin-bottom: 12px;
  letter-spacing: 2px;
}
.testimonial-text {
  font-size: 14px;
  line-height: 1.6;
  color: #333;
  margin: 16px 0;
  font-style: italic;
}
.testimonial-author {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid #f0f0f0;
}
.author-name {
  font-weight: 600;
  color: #1a1a2e;
  font-size: 14px;
}
.author-car {
  font-size: 12px;
  color: #999;
}
@media (max-width: 768px) {
  .testimonials-carousel {
    grid-template-columns: 1fr;
  }
  .testimonials-section {
    padding: 40px 0;
  }
}

/* ===== 信任总结条（转化前强化） ===== */
.trust-summary-strip {
  background: linear-gradient(135deg, var(--dark) 0%, rgba(201,168,76,0.05) 50%, var(--dark) 100%);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 32px 0;
}
.trust-summary-grid {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  flex-wrap: wrap;
}
.trust-summary-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 24px;
  transition: transform 0.3s ease;
}
.trust-summary-item:hover {
  transform: translateY(-3px);
}
.trust-summary-icon {
  font-size: 1.8rem;
  filter: drop-shadow(0 0 6px rgba(201,168,76,0.2));
}
.trust-summary-text {
  font-size: 0.8rem;
  color: var(--gray);
  line-height: 1.4;
}
.trust-summary-text strong {
  color: var(--white);
  font-size: 0.88rem;
}
.trust-summary-divider {
  width: 1px;
  height: 32px;
  background: var(--border);
}
@media (max-width: 768px) {
  .trust-summary-grid {
    justify-content: flex-start;
  }
  .trust-summary-divider {
    display: none;
  }
  .trust-summary-item {
    width: 50%;
    padding: 10px 16px;
  }
}

/* ===== 资质认证横幅 ===== */
.cert-bar {
  background: linear-gradient(135deg, #1a1a2e 0%, #0f3460 100%);
  padding: 20px 0;
  border-top: 1px solid rgba(201,168,76,0.2);
  border-bottom: 1px solid rgba(201,168,76,0.2);
}
.cert-items {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0;
}
.cert-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 24px;
}
.cert-icon { font-size: 18px; }
.cert-text {
  font-size: 13px;
  color: rgba(255,255,255,0.85);
  white-space: nowrap;
}
.cert-divider {
  width: 1px;
  height: 24px;
  background: rgba(201,168,76,0.3);
}
@media (max-width: 768px) {
  .cert-items { gap: 8px; }
  .cert-divider { display: none; }
  .cert-item { padding: 6px 12px; }
  .cert-text { font-size: 12px; white-space: normal; }
}

/* ===== FAQ 常见问题 ===== */
.faq-section {
  background: #f8f9fa;
  padding: 80px 0;
}
.faq-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
  margin: 40px 0;
}
.faq-item {
  background: white;
  border-radius: 12px;
  padding: 24px;
  border-left: 4px solid var(--gold);
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
  transition: all 0.3s ease;
}
.faq-item:hover {
  box-shadow: 0 8px 20px rgba(201,168,76,0.12);
  transform: translateY(-4px);
}
.faq-question {
  font-size: 16px;
  font-weight: 600;
  color: #1a1a2e;
  margin: 0 0 12px 0;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
}
.faq-answer {
  font-size: 14px;
  line-height: 1.6;
  color: #555;
  margin: 0;
}
.faq-answer p {
  margin: 0;
}
@media (max-width: 768px) {
  .faq-section {
    padding: 40px 0;
  }
  .faq-grid {
    grid-template-columns: 1fr;
  }
  .faq-item {
    padding: 16px;
  }
  .faq-question {
    font-size: 15px;
  }
}

/* ===== 全局变量 ===== */
:root {
  --black: #0a0a0a;
  --dark: #111111;
  --dark2: #1a1a1a;
  --dark3: #222222;
  --border: #2a2a2a;
  --gold: #c9a84c;
  --gold-light: #e8c96a;
  --gold-dark: #a88a30;
  --white: #ffffff;
  --gray: #888888;
  --gray-light: #cccccc;
  --text: #e0e0e0;
  --radius: 8px;
  --transition: 0.3s ease;
}

/* ===== 重置 ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  background: var(--black);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* ===== 容器 ===== */
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* ===== 导航 ===== */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(10,10,10,0.97);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: background 0.3s ease, box-shadow 0.3s ease, top 0.3s ease;
}
body:has(.promo-banner:not([style*="display: none"])) .navbar,
body:has(.promo-banner:not([style*="display:none"])) .navbar {
  top: 44px;
}
body:has(.promo-banner:not([style*="display: none"])) .hero,
body:has(.promo-banner:not([style*="display:none"])) .hero {
  padding-top: 108px;
}
body:has(.promo-banner:not([style*="display: none"])) .scroll-progress,
body:has(.promo-banner:not([style*="display:none"])) .scroll-progress {
  top: 108px;
}
.navbar.scrolled {
  background: rgba(10,10,10,0.98);
  box-shadow: 0 4px 24px rgba(0,0,0,0.4);
  border-bottom-color: rgba(201,168,76,0.2);
}
.nav-inner {
  max-width: 1200px; margin: 0 auto; padding: 0 20px;
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
}
.logo {
  font-size: 1.4rem; font-weight: 700; letter-spacing: 2px;
  color: var(--white);
  transition: transform 0.3s ease;
}
.logo:hover { transform: scale(1.05); }
.logo span { color: var(--gold); }
.nav-links {
  display: flex; gap: 24px;
}
.nav-links a {
  color: var(--gray); font-size: 0.88rem; letter-spacing: 1px;
  transition: color var(--transition);
  padding: 4px 0;
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0; right: 0;
  height: 2px; background: var(--gold);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}
.nav-links a:hover::after,
.nav-links a.active::after { transform: scaleX(1); }
.nav-links a:hover, .nav-links a.active { color: var(--gold); }
.nav-toggle {
  display: none; background: none; border: none;
  color: var(--white); font-size: 1.5rem; cursor: pointer;
}

/* ===== 按钮增强 ===== */
.btn {
  display: inline-block;
  padding: 12px 28px;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 1px;
  transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  cursor: pointer;
  border: none;
  position: relative;
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(0,0,0,0.3);
  background: linear-gradient(135deg, var(--gold) 0%, var(--gold-dark) 100%);
}
.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.1);
  transform: translateX(-100%);
  transition: transform 0.4s ease;
}
.btn:hover::before {
  transform: translateX(100%);
}
.btn-primary {
  background: linear-gradient(135deg, var(--gold) 0%, var(--gold-dark) 100%);
  color: var(--black);
  box-shadow: 0 4px 16px rgba(201,168,76,0.3);
}
.btn-primary:hover {
  background: linear-gradient(135deg, var(--gold-light) 0%, var(--gold) 100%);
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(201,168,76,0.4), 0 0 30px rgba(201,168,76,0.2);
}
.btn-primary:active {
  transform: translateY(-2px);
}
.btn-outline {
  background: transparent;
  color: var(--gold);
  border: 1.5px solid var(--gold);
}
.btn-outline:hover {
  background: var(--gold);
  color: var(--black);
  transform: translateY(-4px);
  box-shadow: 0 12px 28px rgba(201,168,76,0.3);
}
.btn-outline:active {
  transform: translateY(-2px);
}
.btn-lg {
  padding: 16px 40px;
  font-size: 1rem;
}
.btn-full {
  width: 100%;
  text-align: center;
}
.center-btn {
  text-align: center;
  margin-top: 48px;
}

/* ===== Section 通用 ===== */
section { padding: 80px 0; }
.section-header { text-align: center; margin-bottom: 56px; }
.section-header h2 { font-size: 2rem; font-weight: 700; color: var(--white); margin-bottom: 12px; }
.section-header p { color: var(--gray); font-size: 1rem; }

/* ===== Hero ===== */
.hero {
  min-height: 100vh; display: flex; align-items: center;
  justify-content: center; position: relative;
  padding-top: 64px; overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at 60% 50%, rgba(201,168,76,0.15) 0%, transparent 70%),
              radial-gradient(ellipse at 30% 80%, rgba(201,168,76,0.08) 0%, transparent 50%),
              linear-gradient(135deg, #0a0a0a 0%, #111 50%, #0d0d0d 100%);
  animation: bgShift 10s ease-in-out infinite;
}
@keyframes bgShift {
  0%, 100% { opacity: 1; }
  50% { opacity: 1.08; }
}
.hero-bg::after {
  content: '';
  position: absolute; inset: 0;
  background-image: repeating-linear-gradient(
    0deg, transparent, transparent 60px,
    rgba(255,255,255,0.015) 60px, rgba(255,255,255,0.015) 61px
  ),
  repeating-linear-gradient(
    90deg, transparent, transparent 60px,
    rgba(255,255,255,0.015) 60px, rgba(255,255,255,0.015) 61px
  );
}
.hero-content {
  position: relative; z-index: 1;
  text-align: center; padding: 40px 20px;
  max-width: 800px;
  animation: fadeInUp 0.8s ease-out;
}
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}
.hero-tag {
  display: inline-block; padding: 6px 16px;
  border: 1px solid var(--gold); color: var(--gold);
  font-size: 0.8rem; letter-spacing: 3px;
  margin-bottom: 24px; border-radius: 20px;
  animation: slideDown 0.6s ease-out;
}
@keyframes slideDown {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}
.hero-content h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 800; line-height: 1.15;
  color: var(--white); margin-bottom: 24px;
  animation: slideDown 0.8s ease-out 0.1s both;
}
.hero-content h1 span { color: var(--gold); }
.hero-sub {
  color: var(--gray); font-size: 1.05rem;
  line-height: 1.8; margin-bottom: 40px;
  animation: slideDown 0.8s ease-out 0.2s both;
}
.hero-btns { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; animation: slideDown 0.8s ease-out 0.3s both; }
.hero-scroll {
  position: absolute; bottom: 32px; left: 50%;
  transform: translateX(-50%);
  color: var(--gray); font-size: 1.2rem;
  animation: bounce 2s infinite;
}
@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* ===== 品牌亮点条 ===== */
.brand-highlights {
  background: var(--dark2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 24px 0;
  overflow: hidden;
}
.highlights-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  flex-wrap: wrap;
}
.highlight-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 32px;
  transition: transform 0.3s ease;
}
.highlight-item:hover {
  transform: translateY(-2px);
}
.highlight-icon {
  font-size: 1.8rem;
  flex-shrink: 0;
  filter: grayscale(0.2);
  transition: filter 0.3s ease, transform 0.3s ease;
}
.highlight-item:hover .highlight-icon {
  filter: grayscale(0);
  transform: scale(1.15);
}
.highlight-text { text-align: left; }
.highlight-title { font-size: 0.88rem; font-weight: 700; color: var(--white); margin-bottom: 2px; }
.highlight-sub { font-size: 0.72rem; color: var(--gray); }
.highlight-divider { width: 1px; height: 36px; background: var(--border); flex-shrink: 0; }
@media (max-width: 900px) {
  .highlight-item { padding: 8px 16px; }
  .highlight-divider { height: 28px; }
}
@media (max-width: 600px) {
  .highlight-divider { display: none; }
  .brand-highlights { padding: 16px 0; }
  .highlight-item { width: 50%; padding: 8px 12px; }
}

/* ===== 特性卡片增强 ===== */
.feature-card {
  background: linear-gradient(135deg, var(--dark2) 0%, rgba(201,168,76,0.02) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 24px;
  transition: border-color 0.4s ease, transform 0.4s ease, box-shadow 0.4s ease, background 0.4s ease;
  position: relative;
  overflow: hidden;
  will-change: transform;
  box-shadow: 0 4px 16px rgba(0,0,0,0.2);
}
.feature-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(201,168,76,0.08) 0%, transparent 100%);
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
}
.feature-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--gold), transparent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.feature-card:hover {
  border-color: var(--gold);
  transform: translateY(-8px);
  box-shadow: 0 20px 50px rgba(201,168,76,0.2), 0 0 40px rgba(201,168,76,0.1);
  background: linear-gradient(135deg, var(--dark2) 0%, rgba(201,168,76,0.06) 100%);
}
.feature-card:hover::before {
  opacity: 1;
}
.feature-card:hover::after {
  transform: scaleX(1);
}
.feature-icon {
  font-size: 2.5rem;
  margin-bottom: 16px;
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.feature-card:hover .feature-icon {
  transform: scale(1.2) rotate(8deg);
}
.feature-card h3 {
  font-size: 1.1rem;
  color: var(--white);
  margin-bottom: 12px;
  font-weight: 600;
}
.feature-card p {
  color: var(--gray);
  font-size: 0.9rem;
  line-height: 1.7;
}

/* ===== 产品卡片增强（竞品分析：3D倾斜效果） ===== */
.product-card {
  background: var(--dark2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.4s ease, transform 0.4s ease, box-shadow 0.4s ease, background 0.4s ease;
  cursor: pointer;
  position: relative;
  will-change: transform;
  display: flex;
  flex-direction: column;
  transform-style: preserve-3d;
  perspective: 1000px;
}
.product-card:hover {
  border-color: var(--gold);
  transform: translateY(-8px) rotateX(2deg) rotateY(-2deg);
  box-shadow: 0 20px 50px rgba(201,168,76,0.25), 0 0 40px rgba(201,168,76,0.08);
  background: linear-gradient(135deg, var(--dark2) 0%, rgba(201,168,76,0.03) 100%);
}
.product-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 0%, rgba(201,168,76,0.05) 50%, transparent 100%);
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
  z-index: 1;
}
.product-card:hover::before {
  opacity: 1;
}
.product-card img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  background: var(--dark3);
  transition: transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1), filter 0.3s ease;
}
.product-card:hover img {
  transform: scale(1.12) rotate(1deg);
  filter: brightness(1.1);
}
.product-card-info {
  padding: 16px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.product-card-info h3 {
  font-size: 1rem;
  color: var(--white);
  margin-bottom: 4px;
  font-weight: 600;
  line-height: 1.3;
}
.product-card-info p {
  font-size: 0.8rem;
  color: var(--gray);
  margin-bottom: 12px;
  line-height: 1.5;
  flex: 1;
}
.product-card-info .btn {
  padding: 8px 16px;
  font-size: 0.8rem;
  width: 100%;
  text-align: center;
  margin-top: auto;
}
.video-badge {
  position: absolute;
  top: 10px;
  left: 10px;
  background: rgba(201,168,76,0.95);
  color: #000;
  font-size: 0.68rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  gap: 4px;
  z-index: 2;
  backdrop-filter: blur(4px);
  box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}
.video-badge::before {
  content: '▶';
  font-size: 0.58rem;
}
.year-badge {
  position: absolute;
  top: 10px;
  right: 10px;
  background: rgba(201,168,76,0.95);
  color: #000;
  font-size: 0.68rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 12px;
  z-index: 2;
  backdrop-filter: blur(4px);
  box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}
.product-card .hot-badge {
  position: absolute;
  top: 10px;
  left: 10px;
  background: linear-gradient(135deg, #e74c3c, #c0392b);
  color: #fff;
  font-size: 0.68rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 12px;
  z-index: 2;
  animation: pulse-badge 2s ease-in-out infinite;
  box-shadow: 0 2px 8px rgba(231,76,60,0.4);
}
.product-card .new-badge {
  position: absolute;
  top: 10px;
  right: 10px;
  background: linear-gradient(135deg, #27ae60, #2ecc71);
  color: #fff;
  font-size: 0.68rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 12px;
  z-index: 2;
  box-shadow: 0 2px 8px rgba(39,174,96,0.4);
}
@keyframes pulse-badge {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.08); }
}
.product-card.featured {
  border-color: rgba(201,168,76,0.4);
  background: linear-gradient(135deg, var(--dark2) 0%, rgba(201,168,76,0.03) 100%);
}
.product-card.featured::after {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(201,168,76,0.15), transparent, rgba(201,168,76,0.08));
  pointer-events: none;
  z-index: 0;
}

/* ===== 懒加载骨架屏 ===== */
.skeleton {
  background: linear-gradient(90deg, var(--dark2) 25%, var(--dark3) 50%, var(--dark2) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
}
@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}
.lazy-img { opacity: 0; transition: opacity 0.5s ease; }
.lazy-img.loaded { opacity: 1; }

/* ===== 骨架屏卡片 ===== */
.skeleton-card {
  background: var(--dark2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  animation: skeleton-fade 0.3s ease;
}
.skeleton-card-img {
  width: 100%;
  aspect-ratio: 1;
  background: linear-gradient(90deg, var(--dark3) 25%, var(--dark2) 50%, var(--dark3) 75%);
  background-size: 200% 100%;
  animation: shimmer 2s infinite;
}
.skeleton-card-content {
  padding: 16px;
}
.skeleton-line {
  height: 12px;
  background: linear-gradient(90deg, var(--dark3) 25%, var(--dark2) 50%, var(--dark3) 75%);
  background-size: 200% 100%;
  animation: shimmer 2s infinite;
  border-radius: 4px;
  margin-bottom: 8px;
}
.skeleton-line:last-child { margin-bottom: 0; width: 60%; }
@keyframes skeleton-fade {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* ===== 预览卡片 ===== */
.preview-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}
.preview-card {
  background: var(--dark2); border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden;
  transition: border-color 0.4s ease, transform 0.4s ease, box-shadow 0.4s ease;
  cursor: pointer; position: relative;
  will-change: transform;
}
.preview-card:hover {
  border-color: var(--gold); transform: translateY(-6px);
  box-shadow: 0 12px 32px rgba(201,168,76,0.15);
}
.preview-card-img {
  width: 100%; height: 180px; object-fit: cover;
  background: var(--dark3);
  transition: transform 0.5s ease;
}
.preview-card:hover .preview-card-img { transform: scale(1.06); }
.preview-card-body { padding: 20px; }
.preview-card-body h3 { color: var(--white); font-size: 1.1rem; margin-bottom: 8px; }
.preview-card-body p { color: var(--gray); font-size: 0.85rem; line-height: 1.6; margin-bottom: 12px; }
.preview-card-body .link { color: var(--gold); font-size: 0.85rem; display: flex; align-items: center; gap: 4px; }
.preview-card-body .link:hover { text-decoration: underline; }

/* ===== 装车展示 ===== */
.showcase { background: var(--dark); }
.showcase-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}
.showcase-item {
  border-radius: var(--radius); overflow: hidden;
  aspect-ratio: 16/10;
  position: relative;
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
  transition: box-shadow 0.4s ease, transform 0.4s ease;
  will-change: transform;
}
.showcase-item:hover {
  box-shadow: 0 16px 40px rgba(201,168,76,0.2);
  transform: translateY(-4px);
}
.showcase-item img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.6s ease;
}
.showcase-item:hover img { transform: scale(1.06); }

/* ===== 定制流程（首页简版）===== */
.process-preview { background: var(--black); }
.steps {
  display: flex; align-items: flex-start;
  gap: 8px; flex-wrap: wrap; justify-content: center;
}
.step { flex: 1; min-width: 180px; max-width: 220px; text-align: center; padding: 24px 16px; }
.step-num { font-size: 2.5rem; font-weight: 800; color: var(--gold); opacity: 0.6; margin-bottom: 12px; }
.step h3 { color: var(--white); margin-bottom: 8px; font-size: 1rem; }
.step p { color: var(--gray); font-size: 0.85rem; line-height: 1.6; }
.step-arrow { color: var(--gold); font-size: 1.5rem; padding-top: 40px; opacity: 0.5; }

/* ===== 定制流程（详情页）===== */
.process-detail { background: var(--black); }
.process-step-full {
  display: flex; gap: 32px; align-items: flex-start;
  background: var(--dark2); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 40px; margin-bottom: 0;
}
.process-num { font-size: 3rem; font-weight: 800; color: var(--gold); opacity: 0.4; min-width: 80px; line-height: 1; }
.process-content h2 { font-size: 1.4rem; color: var(--white); margin-bottom: 16px; }
.process-content p { color: var(--gray); line-height: 1.8; margin-bottom: 16px; }
.process-content ul { margin: 16px 0; }
.process-content ul li { color: var(--gray); padding: 6px 0; padding-left: 20px; position: relative; }
.process-content ul li::before { content: '→'; position: absolute; left: 0; color: var(--gold); }
.process-connector { text-align: center; font-size: 2rem; color: var(--gold); opacity: 0.4; padding: 16px 0; }
.params-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 12px; margin: 16px 0; }
.param-item { background: var(--dark3); border-radius: var(--radius); padding: 12px 16px; }
.param-item strong { display: block; color: var(--gold); font-size: 0.85rem; margin-bottom: 4px; }
.param-item span { color: var(--gray); font-size: 0.85rem; }
.note {
  background: rgba(201,168,76,0.1); border-left: 3px solid var(--gold);
  padding: 12px 16px; border-radius: 0 var(--radius) var(--radius) 0;
  color: var(--gray-light); font-size: 0.9rem;
}

/* ===== FAQ ===== */
.faq { background: var(--dark); }
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid var(--border); }
.faq-q {
  display: flex; justify-content: space-between; align-items: center;
  padding: 20px 0; cursor: pointer;
  color: var(--white); font-size: 1rem; transition: color var(--transition);
}
.faq-q:hover { color: var(--gold); }
.faq-arrow { font-size: 1.4rem; color: var(--gold); transition: transform var(--transition); }
.faq-a { display: none; padding: 0 0 20px; color: var(--gray); line-height: 1.8; font-size: 0.95rem; }
.faq-item.open .faq-a { display: block; }
.faq-item.open .faq-arrow { transform: rotate(45deg); }

/* ===== CTA ===== */
.cta {
  background: linear-gradient(135deg, var(--dark2) 0%, var(--dark) 100%);
  border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
  text-align: center;
}
.cta h2 { font-size: 1.8rem; color: var(--white); margin-bottom: 12px; }
.cta p { color: var(--gray); margin-bottom: 32px; }

/* ===== 页脚 ===== */
.footer { background: var(--dark); border-top: 1px solid var(--border); padding: 60px 0 0; }
.footer-inner { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; padding-bottom: 40px; }
.footer-brand .logo { font-size: 1.3rem; margin-bottom: 12px; }
.footer-brand p { color: var(--gray); font-size: 0.9rem; line-height: 1.8; }
.footer-links h4, .footer-contact h4 { color: var(--white); margin-bottom: 16px; font-size: 0.9rem; }
.footer-links ul li { margin-bottom: 8px; }
.footer-links ul li a { color: var(--gray); font-size: 0.9rem; transition: color var(--transition); }
.footer-links ul li a:hover { color: var(--gold); }
.footer-contact p { color: var(--gray); font-size: 0.9rem; margin-bottom: 8px; }
.footer-note { font-size: 0.8rem !important; }
.footer-bottom { border-top: 1px solid var(--border); padding: 20px 0; text-align: center; }
.footer-bottom p { color: var(--gray); font-size: 0.85rem; }

/* ===== 页面 Hero（内页）===== */
.page-hero {
  padding: 120px 0 60px;
  background: linear-gradient(180deg, var(--dark) 0%, var(--black) 100%);
  text-align: center;
}
.page-hero h1 { font-size: 2.5rem; color: var(--white); margin-bottom: 12px; }
.page-hero p { color: var(--gray); font-size: 1rem; }

/* ===== 面包屑 ===== */
.breadcrumb { padding: 14px 0; background: var(--dark); border-bottom: 1px solid var(--border); font-size: 0.82rem; }
.breadcrumb .container { display: flex; align-items: center; gap: 8px; }
.breadcrumb a { color: var(--gray); transition: color 0.3s; }
.breadcrumb a:hover { color: var(--gold); }
.breadcrumb .sep { color: var(--gray); opacity: 0.4; }
.breadcrumb .current { color: var(--gold); }

/* ===== 筛选栏 ===== */
.filter-bar {
  background: var(--dark);
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
  position: sticky; top: 64px; z-index: 100;
}
.filter-bar .container { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.filter-bar .filter-label { color: var(--gray); font-size: 0.82rem; white-space: nowrap; }
.filter-row {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
  width: 100%;
}
.filter-group {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.filter-btns { display: flex; gap: 8px; flex-wrap: wrap; }
.filter-btn {
  padding: 6px 16px; border-radius: 20px;
  border: 1px solid var(--border); background: transparent;
  color: var(--gray); font-size: 0.82rem; cursor: pointer;
  transition: all var(--transition);
}
.filter-btn:hover, .filter-btn.active {
  border-color: var(--gold); color: var(--gold);
  background: rgba(201,168,76,0.1);
}
.products-count { margin-left: auto; color: var(--gray); font-size: 0.82rem; white-space: nowrap; }

/* ===== 产品列表页 ===== */
.products-full { background: var(--black); padding: 40px 0 80px; }
.products-grid-full {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}
.product-card-full {
  background: linear-gradient(135deg, var(--dark2) 0%, rgba(201,168,76,0.02) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.4s ease, transform 0.4s ease, box-shadow 0.4s ease;
  cursor: pointer;
  position: relative;
  will-change: transform;
  display: flex;
  flex-direction: column;
  box-shadow: 0 4px 16px rgba(0,0,0,0.2);
}
.product-card-full:hover {
  border-color: var(--gold);
  transform: translateY(-8px);
  box-shadow: 0 20px 50px rgba(201,168,76,0.25), 0 0 40px rgba(201,168,76,0.1);
  background: linear-gradient(135deg, var(--dark2) 0%, rgba(201,168,76,0.05) 100%);
}
.product-card-full img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  background: var(--dark3);
  transition: transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1), filter 0.3s ease;
}
.product-card-full:hover img {
  transform: scale(1.1);
  filter: brightness(1.08);
}
.product-card-full .card-body {
  padding: 14px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.product-card-full .card-body h3 {
  font-size: 0.95rem;
  color: var(--white);
  margin-bottom: 4px;
  font-weight: 600;
  line-height: 1.3;
}
.product-card-full .card-body p {
  font-size: 0.78rem;
  color: var(--gray);
  margin-bottom: 8px;
  line-height: 1.4;
  flex: 1;
}
.product-card-full .card-body .btn {
  padding: 7px 14px;
  font-size: 0.8rem;
  width: 100%;
  text-align: center;
  display: block;
  margin-top: auto;
}
.product-card-full .hot-badge {
  position: absolute;
  top: 10px;
  left: 10px;
  background: linear-gradient(135deg, #e74c3c, #c0392b);
  color: #fff;
  font-size: 0.68rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 10px;
  z-index: 2;
  animation: pulse-badge 2s ease-in-out infinite;
}
.product-card-full .new-badge {
  position: absolute;
  top: 10px;
  right: 10px;
  background: linear-gradient(135deg, #27ae60, #2ecc71);
  color: #fff;
  font-size: 0.68rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 10px;
  z-index: 2;
}
.product-card-full.featured {
  border-color: rgba(201,168,76,0.3);
}
.product-card-full.featured::after {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(201,168,76,0.15), transparent, rgba(201,168,76,0.08));
  pointer-events: none;
  z-index: 1;
}

/* ===== 装车案例页 ===== */
.cases-page { background: var(--black); padding: 40px 0 80px; }
.brand-filter { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 32px; }
.brand-btn {
  padding: 8px 18px; border-radius: 20px;
  border: 1px solid var(--border); background: transparent;
  color: var(--gray); font-size: 0.82rem; cursor: pointer;
  transition: all 0.3s;
}
.brand-btn.active, .brand-btn:hover {
  border-color: var(--gold); color: var(--gold); background: rgba(201,168,76,0.1);
}

/* 品牌折叠组 */
.brand-group { margin-bottom: 20px; }
.brand-group-header {
  display: flex; align-items: center; gap: 12px;
  padding: 14px 16px; background: var(--dark2);
  border: 1px solid var(--border); border-radius: var(--radius);
  cursor: pointer; transition: border-color 0.3s, background 0.3s;
  margin-bottom: 0;
  user-select: none;
}
.brand-group-header:hover { border-color: var(--gold); background: var(--dark3); }
.brand-group-header .toggle-icon {
  font-size: 1.2rem; color: var(--gold);
  transition: transform 0.3s;
  min-width: 20px; text-align: center;
}
.brand-group-header.open .toggle-icon { transform: rotate(90deg); }
.brand-group-header h3 { color: var(--white); font-size: 1rem; flex: 1; }
.brand-group-header .count-badge {
  background: rgba(201,168,76,0.15); color: var(--gold);
  font-size: 0.75rem; padding: 2px 10px; border-radius: 20px;
  border: 1px solid rgba(201,168,76,0.3);
}
.brand-group-images {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 12px;
  max-height: 0; overflow: hidden;
  transition: max-height 0.4s ease, opacity 0.3s ease;
  opacity: 0;
}
.brand-group-images.open { max-height: 3000px; opacity: 1; }
.case-thumb {
  border-radius: var(--radius); overflow: hidden;
  cursor: pointer; position: relative;
  aspect-ratio: 16/10;
  background: var(--dark3);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  will-change: transform;
}
.case-thumb:hover { transform: scale(1.04); box-shadow: 0 8px 24px rgba(201,168,76,0.2); }
.case-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.case-thumb .thumb-overlay {
  position: absolute; inset: 0; background: rgba(0,0,0,0.3);
  opacity: 0; transition: opacity 0.3s;
  display: flex; align-items: center; justify-content: center;
}
.case-thumb:hover .thumb-overlay { opacity: 1; }
.case-thumb .thumb-overlay span { color: var(--white); font-size: 0.85rem; }

/* Lightbox */
.lightbox { display: none; position: fixed; inset: 0; z-index: 9999; background: rgba(0,0,0,0.95); align-items: center; justify-content: center; }
.lightbox.active { display: flex; }
.lightbox img { max-width: 90vw; max-height: 85vh; border-radius: var(--radius); box-shadow: 0 20px 60px rgba(0,0,0,0.8); object-fit: contain; }
.lightbox-close { position: absolute; top: 20px; right: 20px; font-size: 2rem; color: var(--white); cursor: pointer; opacity: 0.7; transition: opacity 0.3s; }
.lightbox-close:hover { opacity: 1; }
.lightbox-nav { position: absolute; top: 50%; transform: translateY(-50%); font-size: 2.5rem; color: var(--white); cursor: pointer; opacity: 0.5; transition: opacity 0.3s; padding: 20px; }
.lightbox-nav:hover { opacity: 1; }
.lightbox-prev { left: 20px; }
.lightbox-next { right: 20px; }
.lightbox-counter { position: absolute; bottom: 20px; left: 50%; transform: translateX(-50%); color: var(--gray); font-size: 0.85rem; }
.no-results { text-align: center; padding: 60px 0; color: var(--gray); }
.no-results h3 { font-size: 1.2rem; color: var(--white); margin-bottom: 8px; }

/* ===== 生产基地页 ===== */
.factory-hero { padding: 120px 0 60px; background: linear-gradient(180deg, var(--dark) 0%, var(--black) 100%); text-align: center; }
.factory-hero h1 { font-size: 2.5rem; color: var(--white); margin-bottom: 12px; }
.factory-hero p { color: var(--gray); font-size: 1.05rem; max-width: 640px; margin: 0 auto; line-height: 1.8; }
.factory-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 20px; max-width: 800px; margin: 40px auto 0; }
.stat-card { background: var(--dark2); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px 16px; text-align: center; transition: border-color 0.3s, transform 0.3s; }
.stat-card:hover { border-color: var(--gold); transform: translateY(-4px); }
.stat-card .num { font-size: 2.2rem; font-weight: 900; color: var(--gold); margin-bottom: 6px; }
.stat-card .label { color: var(--gray); font-size: 0.85rem; }
.capabilities-section { background: var(--dark); }
.cap-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 20px; }
.cap-card { background: var(--dark2); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px 24px; transition: border-color 0.3s, transform 0.3s; }
.cap-card:hover { border-color: var(--gold); transform: translateY(-4px); }
.cap-icon { font-size: 2.2rem; margin-bottom: 14px; }
.cap-card h3 { color: var(--white); margin-bottom: 10px; font-size: 1.05rem; }
.cap-card p { color: var(--gray); font-size: 0.9rem; line-height: 1.7; }
.process-section { background: var(--black); }
.process-card { display: flex; gap: 32px; align-items: flex-start; background: var(--dark2); border: 1px solid var(--border); border-radius: var(--radius); padding: 36px; margin-bottom: 24px; transition: border-color 0.3s; }
.process-card:hover { border-color: rgba(201,168,76,0.4); }
@media (max-width: 768px) { .process-card { flex-direction: column; padding: 24px; gap: 16px; } }
.process-num-large { font-size: 3.5rem; font-weight: 900; color: var(--gold); opacity: 0.25; min-width: 80px; line-height: 1; }
.process-body h3 { color: var(--white); font-size: 1.3rem; margin-bottom: 10px; }
.process-body p { color: var(--gray); line-height: 1.8; margin-bottom: 8px; }
.process-tag { display: inline-block; background: rgba(201,168,76,0.15); color: var(--gold); padding: 4px 12px; border-radius: 20px; font-size: 0.8rem; margin-top: 8px; }
.quality-section { background: var(--dark); }
.quality-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: flex-start; }
@media (max-width: 768px) { .quality-grid { grid-template-columns: 1fr; } }
.quality-text { color: var(--gray); line-height: 1.9; font-size: 0.95rem; }
.cert-list { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px; }
.cert-tag { background: var(--dark3); border: 1px solid var(--border); color: var(--gray); padding: 6px 14px; border-radius: 20px; font-size: 0.85rem; transition: border-color 0.3s, color 0.3s; }
.cert-tag:hover { border-color: var(--gold); color: var(--gold); }
.specs-table { background: var(--dark2); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; margin-top: 24px; }
.specs-table table { width: 100%; border-collapse: collapse; }
.specs-table th { background: var(--dark3); color: var(--gold); padding: 14px 20px; text-align: left; font-size: 0.9rem; }
.specs-table td { padding: 12px 20px; color: var(--gray); font-size: 0.9rem; border-bottom: 1px solid var(--border); }
.specs-table tr:last-child td { border-bottom: none; }
.specs-table tr:hover td { background: rgba(201,168,76,0.03); }
.gallery-section { background: var(--black); }
.gallery-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 12px; }
.gallery-grid img { width: 100%; aspect-ratio: 4/3; object-fit: cover; border-radius: var(--radius); background: var(--dark2); transition: transform  0.4s ease, border-color 0.3s; cursor: pointer; }
.gallery-grid img:hover { transform: scale(1.04); border-color: var(--gold); }
.green-section { background: linear-gradient(135deg, rgba(34,85,34,0.2) 0%, var(--dark) 100%); border-top: 1px solid rgba(34,197,94,0.2); border-bottom: 1px solid rgba(34,197,94,0.2); }
.green-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; margin-top: 32px; }
.green-card { background: var(--dark2); border: 1px solid rgba(34,197,94,0.2); border-radius: var(--radius); padding: 24px; }
.green-card h3 { color: #4ade80; margin-bottom: 10px; font-size: 1rem; }
.green-card p { color: var(--gray); font-size: 0.9rem; line-height: 1.7; }
.green-card .highlight { color: #4ade80; font-size: 1.4rem; font-weight: 800; margin-bottom: 6px; display: block; }

/* ===== 联系页 ===== */
.response-promise {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  background: linear-gradient(135deg, rgba(201,168,76,0.08) 0%, rgba(201,168,76,0.03) 100%);
  border: 1px solid rgba(201,168,76,0.25);
  border-radius: 12px;
  padding: 16px 24px;
  margin-bottom: 48px;
  flex-wrap: wrap;
  box-shadow: 0 4px 16px rgba(201,168,76,0.08);
}
.promise-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 4px 28px;
  font-size: 0.88rem;
  color: var(--gray-light);
}
.promise-item strong { color: var(--gold); }
.promise-icon { font-size: 1.2rem; }
.promise-divider {
  width: 1px;
  height: 28px;
  background: rgba(201,168,76,0.25);
  flex-shrink: 0;
}
@media (max-width: 700px) {
  .response-promise { flex-direction: column; gap: 12px; padding: 20px; }
  .promise-divider { width: 60px; height: 1px; }
  .promise-item { padding: 4px 0; }
}

/* ===== 联系页 ===== */
.contact-section { background: var(--black); }
.contact-grid { display: grid; grid-template-columns: 1fr 1.5fr; gap: 60px; align-items: flex-start; }
.contact-info h2, .contact-form-wrap h2 { font-size: 1.5rem; color: var(--white); margin-bottom: 8px; }
.form-note { color: var(--gray); font-size: 0.9rem; margin-bottom: 32px; }
.contact-item { display: flex; gap: 16px; margin-bottom: 32px; }
.contact-icon { font-size: 1.5rem; min-width: 32px; }
.contact-item h3 { color: var(--white); margin-bottom: 8px; font-size: 1rem; }
.contact-item p { color: var(--gray); font-size: 0.9rem; line-height: 1.7; }
.wechat-qr-placeholder { margin-top: 16px; }

/* ===== 表单 ===== */
.inquiry-form { display: flex; flex-direction: column; gap: 20px; }
.form-group { display: flex; flex-direction: column; gap: 8px; }
.form-group label { color: var(--gray-light); font-size: 0.9rem; }
.form-group input, .form-group select, .form-group textarea {
  background: var(--dark2); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 12px 16px;
  color: var(--white); font-size: 0.95rem;
  transition: border-color var(--transition); font-family: inherit;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: none; border-color: var(--gold);
}
.form-group select option { background: var(--dark2); }
.form-tip { color: var(--gray); font-size: 0.8rem; text-align: center; margin-top: 8px; }

/* ===== 响应式 ===== */
@media (max-width: 900px) {
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .quality-grid { grid-template-columns: 1fr; gap: 32px; }
}
@media (max-width: 768px) {
  .nav-links { display: none; flex-direction: column; gap: 0; }
  .nav-links.open {
    display: flex; position: absolute; top: 64px; left: 0; right: 0;
    background: var(--dark); border-bottom: 1px solid var(--border);
    padding: 16px 20px;
  }
  .nav-links li { padding: 12px 0; border-bottom: 1px solid var(--border); }
  .nav-toggle { display: block; }
  .hero-content h1 { font-size: 2.2rem; }
  .steps { flex-direction: column; align-items: center; }
  .step-arrow { display: none; }
  .process-step-full { flex-direction: column; padding: 24px; }
  .process-num { font-size: 2rem; }
  .footer-inner { grid-template-columns: 1fr; gap: 24px; }
  .features-grid { grid-template-columns: 1fr 1fr; }
  .filter-bar { top: 64px; }
  .product-card:hover {
    transform: translateY(-6px);
  }
  .product-card:hover img {
    transform: scale(1.08);
  }
  .feature-card:hover {
    transform: translateY(-6px);
  }
  .feature-card:hover .feature-icon {
    transform: scale(1.12) rotate(5deg);
  }
  .btn-primary:hover {
    transform: translateY(-3px);
  }
  .btn-outline:hover {
    transform: translateY(-3px);
  }
}
@media (max-width: 480px) {
  .features-grid { grid-template-columns: 1fr; }
  .products-grid, .products-grid-full { grid-template-columns: repeat(2, 1fr); }
  .hero-btns { flex-direction: column; align-items: center; }
  .nav-links { gap: 0; }
  .hero-stats { gap: 0; }
  .hero-stat { padding: 12px 16px; }
  .stat-num { font-size: 1.5rem; }
  .comparison-table th,
  .comparison-table td { padding: 10px 12px; font-size: 0.8rem; }
  .reviews-grid { grid-template-columns: 1fr; }
  .float-actions { bottom: 130px; right: 16px; }
  .hero-stat-divider { display: none; }
  .hero-stats { gap: 8px; }
}

/* ===== 热门车型快速导航条 ===== */
.car-quick-bar {
  background: rgba(201,168,76,0.08);
  border-bottom: 1px solid rgba(201,168,76,0.15);
  padding: 10px 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  position: relative;
  z-index: 10;
}
.car-quick-bar::-webkit-scrollbar { display: none; }
.car-quick-bar .container {
  display: flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
}
.car-quick-label {
  font-size: 0.78rem;
  color: var(--gold);
  font-weight: 600;
  flex-shrink: 0;
  padding-right: 4px;
}
.car-quick-btns {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: nowrap;
}
.car-quick-btn {
  display: inline-block;
  padding: 5px 14px;
  border-radius: 20px;
  border: 1px solid rgba(201,168,76,0.3);
  color: var(--gray-light);
  font-size: 0.78rem;
  font-weight: 500;
  white-space: nowrap;
  transition: all 0.25s ease;
  background: rgba(0,0,0,0.2);
}
.car-quick-btn:hover {
  background: var(--gold);
  color: var(--black);
  border-color: var(--gold);
  transform: translateY(-1px);
}
.car-quick-more {
  color: var(--gold);
  border-color: rgba(201,168,76,0.4);
  font-weight: 600;
}
.car-quick-more:hover {
  background: transparent;
  color: var(--gold-light);
}

/* ===== Hero 增强（竞品分析：粒子效果背景） ===== */
.hero-tag {
  display: inline-block; padding: 6px 16px;
  border: 1px solid var(--gold); color: var(--gold);
  font-size: 0.8rem; letter-spacing: 2px;
  margin-bottom: 20px; border-radius: 20px;
  animation: slideDown 0.6s ease-out;
  background: rgba(201,168,76,0.08);
}
/* 粒子效果 */
.hero-particles {
  position: absolute; inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 0;
}
.hero-particle {
  position: absolute;
  width: 3px; height: 3px;
  background: var(--gold);
  border-radius: 50%;
  opacity: 0;
  animation: particleFloat 8s ease-in-out infinite;
}
@keyframes particleFloat {
  0% {
    opacity: 0;
    transform: translateY(100vh) translateX(0) scale(0.5);
  }
  10% { opacity: 0.6; }
  90% { opacity: 0.6; }
  100% {
    opacity: 0;
    transform: translateY(-10vh) translateX(30px) scale(1);
  }
}
.btn-hero-main {
  font-size: 1rem !important;
  padding: 14px 36px !important;
}

/* ===== Hero 信任徽章 ===== */
.hero-trust-badges {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 24px;
  flex-wrap: wrap;
  animation: slideDown 0.8s ease-out 0.5s both;
}
.hero-badge {
  display: inline-block;
  padding: 5px 14px;
  background: rgba(201,168,76,0.1);
  border: 1px solid rgba(201,168,76,0.25);
  border-radius: 20px;
  font-size: 0.75rem;
  color: var(--gray-light);
  backdrop-filter: blur(4px);
  transition: all 0.25s ease;
}
.hero-badge:hover {
  background: rgba(201,168,76,0.2);
  border-color: rgba(201,168,76,0.4);
  color: var(--white);
}

/* ===== Hero 统计数字 ===== */
.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  margin-top: 48px;
  flex-wrap: wrap;
  animation: slideDown 0.8s ease-out 0.4s both;
}
.hero-stat {
  text-align: center;
  padding: 16px 28px;
}
.hero-stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border);
}
.stat-num {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  color: var(--gold);
  line-height: 1;
}
.hero-stat > span:nth-child(2) {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--gold);
}
.stat-label {
  display: block;
  font-size: 0.78rem;
  color: var(--gray);
  margin-top: 6px;
  letter-spacing: 1px;
}

/* ===== 锻造科普区块 ===== */
.why-forged-section {
  background: linear-gradient(180deg, var(--black) 0%, var(--dark) 50%, var(--black) 100%);
  padding: 80px 0;
}
.why-grid {
  display: flex;
  justify-content: center;
}
.why-card {
  max-width: 1000px;
  width: 100%;
  background: var(--dark2);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 8px 32px rgba(0,0,0,0.3);
}
.why-visual {
  background: linear-gradient(135deg, rgba(201,168,76,0.06) 0%, transparent 60%);
  border-bottom: 1px solid var(--border);
  padding: 40px;
}
.why-compare {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
  flex-wrap: wrap;
}
.why-side {
  text-align: center;
  min-width: 200px;
}
.why-side-title {
  font-size: 0.85rem;
  color: var(--gray);
  margin-bottom: 16px;
  letter-spacing: 1px;
}
.why-icon-orig {
  font-size: 3.5rem;
  margin-bottom: 12px;
  filter: grayscale(0.5);
  opacity: 0.6;
}
.why-icon-forge {
  font-size: 3.5rem;
  margin-bottom: 12px;
}
.why-molten {
  font-size: 0.82rem;
  color: var(--gray);
  line-height: 1.6;
}
.why-vs {
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--gold);
  opacity: 0.5;
  flex-shrink: 0;
}
.why-facts {
  padding: 32px 40px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.why-fact {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 16px;
  background: var(--dark3);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  transition: border-color 0.3s ease, transform 0.3s ease;
}
.why-fact:hover {
  border-color: rgba(201,168,76,0.4);
  transform: translateY(-3px);
}
.why-fact-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
  margin-top: 2px;
}
.why-fact-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 6px;
}
.why-fact-desc {
  font-size: 0.82rem;
  color: var(--gray);
  line-height: 1.6;
}
@media (max-width: 768px) {
  .why-facts { grid-template-columns: 1fr; padding: 24px 20px; }
  .why-visual { padding: 24px 20px; }
  .why-vs { display: none; }
  .why-compare { gap: 16px; }
}

/* ===== 对比表 ===== */
.comparison-section { background: var(--dark); }
.comparison-table-wrap {
  overflow-x: auto;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: 0 8px 24px rgba(0,0,0,0.3);
}
.comparison-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}
.comparison-table th,
.comparison-table td {
  padding: 16px 20px;
  text-align: center;
  border-bottom: 1px solid var(--border);
  transition: background 0.3s ease;
}
.comparison-table th {
  background: var(--dark3);
  color: var(--white);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 1px;
}
.comparison-table td:first-child {
  text-align: left;
  color: var(--gray-light);
  font-weight: 500;
}
.comparison-table tr:last-child td { border-bottom: none; }
.comparison-table tr:hover td {
  background: rgba(255,255,255,0.03);
}
.highlight-col {
  background: rgba(201,168,76,0.08) !important;
  color: var(--gold-light) !important;
  font-weight: 600;
}
.comparison-table th.highlight-col {
  background: rgba(201,168,76,0.18) !important;
  color: var(--gold) !important;
  border-bottom: 2px solid var(--gold);
}
.comparison-table tr:hover .highlight-col {
  background: rgba(201,168,76,0.12) !important;
}

/* ===== 客户评价 ===== */
.reviews-section { background: var(--black); }
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}
.review-card {
  background: var(--dark2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: border-color 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
  position: relative;
  overflow: hidden;
}
.review-card::before {
  content: '"';
  position: absolute;
  top: 16px;
  right: 20px;
  font-size: 4rem;
  color: rgba(201,168,76,0.12);
  font-family: Georgia, serif;
  line-height: 1;
}
.review-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--gold), transparent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.review-card:hover {
  border-color: var(--gold);
  transform: translateY(-6px);
  box-shadow: 0 12px 32px rgba(201,168,76,0.15);
}
.review-card:hover::after {
  transform: scaleX(1);
}
.review-stars {
  color: var(--gold);
  font-size: 1rem;
  margin-bottom: 14px;
  letter-spacing: 2px;
}
.review-text {
  color: var(--gray-light);
  font-size: 0.9rem;
  line-height: 1.8;
  margin-bottom: 20px;
  font-style: italic;
}
.review-author {
  display: flex;
  align-items: center;
  gap: 12px;
}
.review-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--gold), var(--gold-light));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: var(--black);
  font-size: 1rem;
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(201,168,76,0.3);
}
.review-name {
  font-weight: 600;
  color: var(--white);
  font-size: 0.9rem;
}
.review-car {
  font-size: 0.78rem;
  color: var(--gray);
  margin-top: 2px;
}

/* ===== FAQ ===== */
.faq-section { padding: 80px 0; }
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color 0.3s ease;
}
.faq-item:hover { border-color: rgba(201,168,76,0.4); }
.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 24px;
  cursor: pointer;
  background: var(--dark2);
  color: var(--white);
  font-weight: 600;
  font-size: 0.95rem;
  transition: background 0.3s ease;
  user-select: none;
}
.faq-question:hover { background: var(--dark3); }
.faq-arrow {
  color: var(--gold);
  font-size: 0.75rem;
  transition: transform 0.3s ease;
  flex-shrink: 0;
}
.faq-item.open .faq-arrow { transform: rotate(180deg); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
  background: var(--dark);
}
.faq-item.open .faq-answer {
  max-height: 200px;
  padding: 16px 24px 20px;
}
.faq-answer p {
  color: var(--gray-light);
  font-size: 0.9rem;
  line-height: 1.8;
}

/* ===== 浮窗客服 ===== */
.float-actions {
  position: fixed;
  bottom: 80px;
  right: 24px;
  z-index: 999;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
}
.float-toggle {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--gold);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(201,168,76,0.4);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  order: 2;
}
.float-toggle:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 24px rgba(201,168,76,0.5);
}
.float-icon { font-size: 1.4rem; }
.float-menu {
  display: flex;
  flex-direction: column;
  gap: 8px;
  order: 1;
  opacity: 0;
  transform: translateY(10px) scale(0.95);
  pointer-events: none;
  transition: opacity 0.3s ease, transform 0.3s ease;
}
.float-menu.open {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: all;
}
.float-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  border-radius: 24px;
  background: var(--dark2);
  border: 1px solid var(--border);
  color: var(--white);
  font-size: 0.85rem;
  font-weight: 500;
  white-space: nowrap;
  transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
  text-decoration: none;
}
.float-item:hover {
  background: var(--dark3);
  border-color: var(--gold);
  transform: translateX(-4px);
}
.float-wechat:hover { border-color: #07c160; }
.float-whatsapp:hover { border-color: #25d366; }
.float-inquiry:hover { border-color: var(--gold); }
.float-phone:hover { border-color: #4a9eff; }

/* ===== 返回顶部 ===== */
.back-to-top {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 998;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--dark2);
  border: 1px solid var(--border);
  color: var(--gold);
  font-size: 1.1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.3s ease, transform 0.3s ease, background 0.2s ease;
  pointer-events: none;
}
.back-to-top.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: all;
}
.back-to-top:hover { background: var(--dark3); border-color: var(--gold); }

/* ===== 页面过渡动画 ===== */
.page-transition {
  animation: pageIn 0.5s ease-out;
}
@keyframes pageIn {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ===== 响应式补充 ===== */
@media (max-width: 768px) {
  .hero-stats { gap: 0; }
  .hero-stat { padding: 12px 16px; }
  .stat-num { font-size: 1.5rem; }
  .comparison-table th,
  .comparison-table td { padding: 10px 12px; font-size: 0.8rem; }
  .reviews-grid { grid-template-columns: 1fr; }
  .float-actions { bottom: 130px; right: 16px; }
}
@media (max-width: 480px) {
  .hero-stat-divider { display: none; }
  .hero-stats { gap: 8px; }
}

/* ===== 滚动进度条 ===== */
.scroll-progress {
  position: fixed;
  top: 64px;
  left: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--gold), var(--gold-light));
  width: 0%;
  z-index: 1001;
  transition: width 0.1s linear;
  box-shadow: 0 0 8px rgba(201,168,76,0.5);
}

/* ===== 增强样式的响应式适配 ===== */
@media (max-width: 768px) {
  .btn-primary-enhanced {
    padding: 12px 28px;
    font-size: 14px;
  }
  
  .product-card-enhanced {
    margin-bottom: 16px;
  }
  
  .review-card-enhanced {
    padding: 20px;
  }
  
  .review-card-enhanced::before {
    font-size: 60px;
    top: 5px;
    left: 10px;
  }
  
  .highlight-item-enhanced {
    padding: 12px 16px;
  }
  
  .highlight-item-enhanced .highlight-icon {
    font-size: 24px;
  }
  
  .comparison-table-enhanced th,
  .comparison-table-enhanced td {
    padding: 12px 16px;
    font-size: 13px;
  }
  
  .trust-badge-enhanced {
    padding: 6px 12px;
    font-size: 11px;
  }
  
  .hero-trust-badges {
    flex-wrap: wrap;
    gap: 8px;
  }
}

@media (max-width: 480px) {
  .btn-primary-enhanced {
    padding: 10px 24px;
    font-size: 13px;
    width: 100%;
    text-align: center;
  }
  
  .review-card-enhanced {
    padding: 16px;
  }
  
  .comparison-table-enhanced {
    font-size: 12px;
  }
  
  .comparison-table-enhanced th,
  .comparison-table-enhanced td {
    padding: 10px 12px;
  }
}

/* ===== 合作品牌 & 信任认证板块 ===== */
.trust-section {
  background: var(--black);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 80px 0;
}
.trust-logos {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 20px;
  margin-bottom: 48px;
}
.trust-logo-item {
  background: var(--dark2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 16px;
  text-align: center;
  transition: border-color 0.4s ease, transform 0.4s ease, box-shadow 0.4s ease, background 0.3s ease;
  will-change: transform;
}
.trust-logo-item:hover {
  border-color: var(--gold);
  transform: translateY(-8px);
  box-shadow: 0 16px 40px rgba(201,168,76,0.15);
  background: linear-gradient(135deg, var(--dark2) 0%, rgba(201,168,76,0.05) 100%);
}
.trust-logo-icon {
  font-size: 2.2rem;
  margin-bottom: 12px;
  filter: grayscale(0.4);
  transition: filter 0.3s ease, transform 0.3s ease;
}
.trust-logo-item:hover .trust-logo-icon {
  filter: grayscale(0);
  transform: scale(1.15);
}
.trust-logo-name {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 6px;
}
.trust-logo-tag {
  font-size: 0.72rem;
  color: var(--gold);
  background: rgba(201,168,76,0.12);
  display: inline-block;
  padding: 3px 12px;
  border-radius: 12px;
  border: 1px solid rgba(201,168,76,0.25);
  transition: all 0.3s ease;
}
.trust-logo-item:hover .trust-logo-tag {
  background: rgba(201,168,76,0.2);
  border-color: rgba(201,168,76,0.4);
}

.trust-highlights {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 16px;
  margin-bottom: 32px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}
.trust-highlight {
  text-align: center;
  padding: 24px 12px;
  background: var(--dark2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
}
.trust-highlight:hover {
  border-color: var(--gold);
  transform: translateY(-4px);
  box-shadow: 0 8px 20px rgba(201,168,76,0.1);
}
.trust-highlight-num {
  font-size: 1.8rem;
  font-weight: 900;
  color: var(--gold);
  margin-bottom: 6px;
}
.trust-highlight-label {
  font-size: 0.78rem;
  color: var(--gray);
  line-height: 1.4;
}

.trust-cert-badges {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
}
.cert-badge {
  background: var(--dark3);
  border: 1px solid var(--border);
  color: var(--gray);
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 0.82rem;
  transition: border-color 0.3s ease, color 0.3s ease, background 0.3s ease, transform 0.3s ease;
}
.cert-badge:hover {
  border-color: var(--gold);
  color: var(--gold);
  background: rgba(201,168,76,0.1);
  transform: translateY(-2px);
}

/* ===== 移动端底部固定询价栏 ===== */
.mobile-sticky-cta {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 998;
  background: rgba(10,10,10,0.97);
  backdrop-filter: blur(10px);
  border-top: 1px solid var(--border);
  padding: 10px 16px;
  gap: 10px;
  align-items: center;
  padding-bottom: max(10px, env(safe-area-inset-bottom));
}
.mobile-cta-btn {
  flex: 1;
  text-align: center;
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: 0.88rem;
  font-weight: 600;
  letter-spacing: 1px;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
}
.mobile-cta-wechat {
  background: rgba(7,193,96,0.15);
  border: 1px solid rgba(7,193,96,0.3);
  color: #07c160;
}
.mobile-cta-wechat:hover {
  background: rgba(7,193,96,0.25);
}
.mobile-cta-primary {
  background: var(--gold);
  color: var(--black);
}
.mobile-cta-primary:hover {
  background: var(--gold-light);
}

/* ===== 移动端响应式优化 ===== */
@media (max-width: 768px) {
  .mobile-sticky-cta {
    display: flex;
  }
  body {
    padding-bottom: 80px;
  }
  .hero-content h1 {
    font-size: 2.2rem;
    line-height: 1.2;
  }
  .hero-tag {
    font-size: 0.75rem;
    padding: 5px 14px;
  }
  .hero-btns {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
  }
  .btn {
    padding: 14px 24px;
    text-align: center;
  }
  .hero-stats {
    flex-wrap: wrap;
    gap: 8px;
  }
  .hero-stat {
    flex: 1 1 45%;
    padding: 12px 16px;
  }
  .stat-num {
    font-size: 1.6rem;
  }
  .stat-label {
    font-size: 0.72rem;
  }
  .features-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .feature-card {
    padding: 24px 20px;
  }
  .products-grid, .products-grid-full {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
  .product-card-full:hover {
    transform: translateY(-4px);
  }
  .trust-logos {
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
  }
  .trust-logo-item {
    padding: 16px 10px;
  }
  .trust-logo-icon {
    font-size: 1.6rem;
  }
  .trust-logo-name {
    font-size: 0.82rem;
  }
  .trust-highlights {
    grid-template-columns: repeat(2, 1fr);
  }
  .comparison-table th,
  .comparison-table td {
    padding: 12px 14px;
    font-size: 0.82rem;
  }
  .reviews-grid {
    grid-template-columns: 1fr;
  }
  .review-card {
    padding: 24px;
  }
  .float-actions {
    bottom: 140px;
    right: 12px;
  }
  .float-toggle {
    width: 48px;
    height: 48px;
  }
  .navbar {
    background: rgba(10,10,10,0.98);
  }
}

/* ===== Hero 增强视觉 - 旋转轮毂线条动画 ===== */
.hero-bg::before {
  content: '';
  position: absolute;
  top: 50%;
  right: -10%;
  width: 60vw;
  height: 60vw;
  max-width: 600px;
  max-height: 600px;
  border: 2px solid rgba(201,168,76,0.06);
  border-radius: 50%;
  transform: translateY(-50%);
  animation: heroRing 20s linear infinite;
}
.hero-bg::after {
  background-image:
    repeating-linear-gradient(
      0deg, transparent, transparent 60px,
      rgba(255,255,255,0.015) 60px, rgba(255,255,255,0.015) 61px
    ),
    repeating-linear-gradient(
      90deg, transparent, transparent 60px,
      rgba(255,255,255,0.015) 60px, rgba(255,255,255,0.015) 61px
    );
}
@keyframes heroRing {
  from { transform: translateY(-50%) rotate(0deg); }
  to { transform: translateY(-50%) rotate(360deg); }
}

/* ===== 产品卡片增强 ===== */
.product-card .hot-badge,
.product-card-full .hot-badge {
  position: absolute;
  top: 10px;
  left: 10px;
  background: linear-gradient(135deg, #e74c3c, #c0392b);
  color: #fff;
  font-size: 0.68rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 10px;
  z-index: 2;
  animation: pulse-badge 2s ease-in-out infinite;
}
.product-card .new-badge,
.product-card-full .new-badge {
  position: absolute;
  top: 10px;
  right: 10px;
  background: linear-gradient(135deg, #27ae60, #2ecc71);
  color: #fff;
  font-size: 0.68rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 10px;
  z-index: 2;
}
@keyframes pulse-badge {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

/* ===== 热门产品卡片升级 ===== */
.product-card.featured,
.product-card-full.featured {
  border-color: rgba(201,168,76,0.3);
}
.product-card.featured::after,
.product-card-full.featured::after {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(201,168,76,0.15), transparent, rgba(201,168,76,0.08));
  pointer-events: none;
  z-index: 1;
}

/* ===== CTA section 增强 ===== */
.cta {
  background: linear-gradient(135deg, rgba(201,168,76,0.12) 0%, var(--dark) 50%, rgba(201,168,76,0.08) 100%);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  text-align: center;
  position: relative;
  overflow: hidden;
  padding: 80px 0;
}
.cta::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at 70% 50%, rgba(201,168,76,0.08) 0%, transparent 50%);
  animation: ctaGlow 6s ease-in-out infinite;
}
.cta::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  opacity: 0.6;
}
@keyframes ctaGlow {
  0%, 100% { opacity: 0.5; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.1); }
}
.cta .container { position: relative; z-index: 1; }

/* ===== 导航栏增强 ===== */
.navbar {
  transition: box-shadow 0.3s ease;
}
.navbar.scrolled {
  box-shadow: 0 4px 20px rgba(0,0,0,0.4);
}

/* ===== 响应式 - 信任板块 ===== */
@media (max-width: 768px) {
  .trust-logos {
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
  }
  .trust-logo-item {
    padding: 20px 12px;
  }
  .trust-logo-icon {
    font-size: 1.8rem;
    margin-bottom: 8px;
  }
  .trust-logo-name {
    font-size: 0.85rem;
  }
  .trust-highlights {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
  .trust-highlight-num {
    font-size: 1.3rem;
  }
  .trust-cert-badges {
    justify-content: flex-start;
  }
}
@media (max-width: 480px) {
  .trust-logos {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ===== Hero 几何网格背景（竞品分析新增） ===== */
.hero-geo-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(201,168,76,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(201,168,76,0.03) 1px, transparent 1px);
  background-size: 80px 80px;
  animation: gridPulse 6s ease-in-out infinite;
  z-index: 0;
}
@keyframes gridPulse {
  0%, 100% { opacity: 0.6; }
  50% { opacity: 1; }
}

/* Hero 斜切装饰块 */
.hero-diagonal-block {
  position: absolute; width: 300px; height: 300px;
  border: 1px solid rgba(201,168,76,0.06); transform: rotate(45deg); z-index: 0;
}
.hero-diagonal-block-1 {
  top: -80px; right: -60px;
  animation: float 8s ease-in-out infinite;
}
.hero-diagonal-block-2 {
  bottom: -120px; left: -100px; width: 200px; height: 200px;
  animation: float 10s ease-in-out infinite 2s;
  border-color: rgba(201,168,76,0.04);
}

/* ===== 鼠标滚轮指示器 ===== */
.hero-scroll-indicator {
  position: absolute; bottom: 30px; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  color: rgba(201,168,76,0.5); font-size: 12px; letter-spacing: 2px;
  z-index: 2; animation: fadeInUp 1s ease-out 1.5s both;
}
.hero-scroll-mouse {
  width: 24px; height: 38px; border: 2px solid rgba(201,168,76,0.4);
  border-radius: 12px; position: relative;
}
.hero-scroll-wheel {
  width: 4px; height: 8px; background: rgba(201,168,76,0.6);
  border-radius: 2px; position: absolute; top: 6px; left: 50%; transform: translateX(-50%);
  animation: mouseScroll 2s ease-in-out infinite;
}
@keyframes mouseScroll {
  0%, 100% { transform: translateX(-50%) translateY(0); opacity: 1; }
  50% { transform: translateX(-50%) translateY(8px); opacity: 0.4; }
}

/* ===== 滚动入场动画类 ===== */
.scroll-reveal {
  opacity: 0; transform: translateY(40px);
  transition: opacity 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              transform 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.scroll-reveal.visible { opacity: 1; transform: translateY(0); }
.scroll-reveal-left {
  opacity: 0; transform: translateX(-50px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.scroll-reveal-left.visible { opacity: 1; transform: translateX(0); }
.scroll-reveal-right {
  opacity: 0; transform: translateX(50px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.scroll-reveal-right.visible { opacity: 1; transform: translateX(0); }
.scroll-reveal-scale {
  opacity: 0; transform: scale(0.92);
  transition: opacity 0.6s ease, transform 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.scroll-reveal-scale.visible { opacity: 1; transform: scale(1); }
.scroll-reveal-delay-1 { transition-delay: 0.1s; }
.scroll-reveal-delay-2 { transition-delay: 0.2s; }
.scroll-reveal-delay-3 { transition-delay: 0.3s; }
.scroll-reveal-delay-4 { transition-delay: 0.4s; }
.scroll-reveal-delay-5 { transition-delay: 0.5s; }

/* ===== 增强的对比表格行入场动画 ===== */
.comparison-table-enhanced tbody tr {
  transition: background 0.3s ease;
}
.table-row-animate {
  opacity: 0; transform: translateX(-15px);
  transition: opacity 0.45s ease, transform 0.45s ease, background 0.3s ease;
}
.table-row-animate.visible {
  opacity: 1; transform: translateX(0);
}
.table-row-animate:hover {
  background: rgba(201,168,76,0.07) !important;
}

/* ===== 品牌亮点数字计数增强 ===== */
.trust-highlight-num {
  transition: transform 0.3s ease;
}
.trust-highlight:hover .trust-highlight-num {
  transform: scale(1.1);
  color: var(--gold);
}
.trust-highlight {
  transition: transform 0.3s ease;
}
.trust-highlight:hover {
  transform: translateY(-5px);
}

/* ===== 特色产品卡：视频优先标记 ===== */
.video-indicator {
  position: absolute; bottom: 12px; left: 12px;
  background: rgba(201,168,76,0.9); color: #000;
  padding: 4px 10px; border-radius: 20px;
  font-size: 11px; font-weight: 700;
  display: flex; align-items: center; gap: 4px;
  animation: pulse-glow 2s ease-in-out infinite;
  z-index: 5;
}
.video-indicator::before {
  content: '▶'; font-size: 8px;
}

/* ===== 增强产品网格（竞品分析：自适应瀑布流布局） ===== */
.products-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}
/* 首行2个大卡片 */
.products-grid::before {
  content: '';
  grid-column: 1 / -1;
  display: none;
}
.products-grid .product-card:nth-child(-n+3) {
  grid-column: span 1;
}
@media (min-width: 1200px) {
  .products-grid .product-card:nth-child(1) {
    grid-row: span 2;
  }
}
@media (max-width: 640px) {
  .products-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
}
/* 产品卡片进入动画 */
.products-grid .product-card {
  opacity: 0;
  animation: productFadeIn 0.6s ease forwards;
}
.products-grid .product-card:nth-child(1) { animation-delay: 0.1s; }
.products-grid .product-card:nth-child(2) { animation-delay: 0.2s; }
.products-grid .product-card:nth-child(3) { animation-delay: 0.3s; }
.products-grid .product-card:nth-child(4) { animation-delay: 0.4s; }
.products-grid .product-card:nth-child(n+5) { animation-delay: 0.5s; }
@keyframes productFadeIn {
  from {
    opacity: 0;
    transform: translateY(30px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* ===== 定制流程步进动画增强 ===== */
.step {
  position: relative; transition: transform 0.3s ease;
}
.step:hover { transform: translateY(-5px); }
.step::after {
  content: ''; position: absolute; inset: 0;
  border-radius: inherit; opacity: 0;
  transition: opacity 0.3s ease;
  box-shadow: 0 0 30px rgba(201,168,76,0.15);
}
.step:hover::after { opacity: 1; }

/* ===== 客户评价轮播增强指示器 ===== */
.testimonials-carousel {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}
.testimonial-card {
  background: linear-gradient(145deg, var(--dark2) 0%, var(--dark3) 100%);
  border-radius: 16px; padding: 28px;
  border: 1px solid var(--border);
  transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  position: relative; overflow: hidden;
}
.testimonial-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 40px rgba(0,0,0,0.4), 0 0 40px rgba(201,168,76,0.1);
  border-color: rgba(201,168,76,0.3);
}
.testimonial-card::before {
  content: '"'; position: absolute;
  top: 5px; left: 18px; font-size: 72px;
  color: rgba(201,168,76,0.08); font-family: Georgia, serif; line-height: 1;
}
.testimonial-stars { color: var(--gold); font-size: 16px; letter-spacing: 2px; margin-bottom: 16px; }
.testimonial-text { color: var(--text); line-height: 1.8; font-style: italic; margin-bottom: 20px; }
.testimonial-author { display: flex; flex-direction: column; gap: 4px; }
.author-name { color: var(--gold); font-weight: 600; }
.author-car { color: rgba(255,255,255,0.4); font-size: 13px; }

/* ===== 赛道验证/赛车基因区块（竞品分析新增） ===== */
.racing-heritage-section {
  background: linear-gradient(135deg, #0a0a0a 0%, #1a1a2e 50%, #0f3460 100%);
  padding: 80px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}
.racing-heritage-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  opacity: 0.5;
}
.racing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
  margin-bottom: 40px;
}
.racing-card {
  background: linear-gradient(145deg, rgba(15,52,96,0.3) 0%, rgba(26,26,46,0.5) 100%);
  border: 1px solid rgba(201,168,76,0.15);
  border-radius: 16px;
  padding: 32px 24px;
  text-align: center;
  transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  position: relative;
  overflow: hidden;
}
.racing-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--gold), transparent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}
.racing-card:hover {
  transform: translateY(-8px);
  border-color: rgba(201,168,76,0.4);
  box-shadow: 0 20px 50px rgba(0,0,0,0.5), 0 0 40px rgba(201,168,76,0.15);
}
.racing-card:hover::before {
  transform: scaleX(1);
}
.racing-icon {
  font-size: 3rem;
  margin-bottom: 16px;
  filter: drop-shadow(0 0 10px rgba(201,168,76,0.3));
  transition: transform 0.3s ease;
}
.racing-card:hover .racing-icon {
  transform: scale(1.15);
}
.racing-card h3 {
  color: var(--white);
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 12px;
}
.racing-card p {
  color: var(--gray);
  font-size: 0.88rem;
  line-height: 1.7;
  margin-bottom: 20px;
}
.racing-stat {
  background: rgba(201,168,76,0.1);
  border: 1px solid rgba(201,168,76,0.25);
  border-radius: 12px;
  padding: 12px 20px;
  display: inline-block;
}
.racing-num {
  display: block;
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--gold);
  line-height: 1;
}
.racing-label {
  display: block;
  font-size: 0.72rem;
  color: var(--gray);
  margin-top: 4px;
}
.racing-cta {
  text-align: center;
}
@media (max-width: 768px) {
  .racing-heritage-section { padding: 50px 0; }
  .racing-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .racing-card { padding: 24px 16px; }
  .racing-icon { font-size: 2.2rem; }
}
@media (max-width: 480px) {
  .racing-grid { grid-template-columns: 1fr; }
}

/* ===== 快速询价悬浮条（桌面端，竞品分析新增） ===== */
.quick-quote-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 997;
  background: linear-gradient(135deg, rgba(10,10,10,0.98) 0%, rgba(26,26,46,0.98) 100%);
  backdrop-filter: blur(12px);
  border-top: 1px solid rgba(201,168,76,0.3);
  padding: 12px 0;
  transform: translateY(100%);
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.quick-quote-bar.visible {
  transform: translateY(0);
}
.quick-quote-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.quick-quote-text {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--white);
  font-size: 0.95rem;
  font-weight: 600;
}
.quick-quote-icon {
  font-size: 1.5rem;
}
.quick-quote-features {
  display: flex;
  align-items: center;
  gap: 20px;
}
.quick-feature {
  color: var(--gold);
  font-size: 0.82rem;
  white-space: nowrap;
}
.quick-quote-btn {
  background: linear-gradient(135deg, var(--gold) 0%, var(--gold-dark) 100%);
  color: var(--black);
  padding: 12px 32px;
  border-radius: 50px;
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 1px;
  transition: all 0.3s ease;
  box-shadow: 0 4px 16px rgba(201,168,76,0.4);
  white-space: nowrap;
}
.quick-quote-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(201,168,76,0.5);
}
@media (min-width: 1024px) {
  .quick-quote-bar {
    display: block;
  }
  body {
    padding-bottom: 0;
  }
}
@media (max-width: 1200px) {
  .quick-quote-features {
    display: none;
  }
}
@media (max-width: 768px) {
  .quick-quote-bar {
    display: none !important;
  }
}

/* ===== FAQ 展开收起动画增强 ===== */
.faq-answer {
  max-height: 0; overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              padding 0.3s ease, opacity 0.3s ease;
  opacity: 0;
}
.faq-item.open .faq-answer { 
  max-height: 300px; 
  opacity: 1;
}
.faq-arrow {
  transition: transform 0.3s ease;
  display: inline-block;
}
.faq-item.open .faq-arrow { transform: rotate(180deg); }
.faq-item { cursor: pointer; transition: all 0.3s ease; }
.faq-item:hover { border-color: rgba(201,168,76,0.3); }
.faq-question {
  display: flex; justify-content: space-between; align-items: center;
  transition: color 0.3s ease;
}
.faq-item:hover .faq-question { color: var(--gold); }

/* ===== 响应承诺横幅（竞品分析：突出服务承诺） ===== */
.response-promise {
  display: flex; align-items: center; justify-content: center;
  gap: 32px; padding: 20px 32px;
  background: linear-gradient(135deg, rgba(201,168,76,0.08) 0%, rgba(201,168,76,0.03) 100%);
  border: 1px solid rgba(201,168,76,0.2); border-radius: 16px;
  margin-bottom: 48px; flex-wrap: wrap;
}
.promise-item { display: flex; align-items: center; gap: 12px; color: var(--text); font-size: 14px; }
.promise-icon { font-size: 24px; }
.promise-item strong { color: var(--gold); }
.promise-divider { width: 1px; height: 32px; background: rgba(201,168,76,0.2); }

/* ===== 联系表单增强 ===== */
.inquiry-form .form-group input:focus,
.inquiry-form .form-group select:focus,
.inquiry-form .form-group textarea:focus {
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(201,168,76,0.1);
}
.inquiry-form .form-group label {
  display: block; margin-bottom: 8px; color: var(--text);
  font-size: 14px; font-weight: 500;
  transition: color 0.3s ease;
}
.inquiry-form .form-group input:focus + .form-group label,
.inquiry-form .form-group:focus-within label {
  color: var(--gold);
}
.form-tip {
  font-size: 12px; color: rgba(255,255,255,0.4);
  text-align: center; margin-top: 12px;
}
.form-group.required label::after {
  content: ' *'; color: var(--gold);
}

/* ===== 合作品牌轮播（竞品分析：动态展示） ===== */
.trust-logos {
  display: grid; grid-template-columns: repeat(6, 1fr);
  gap: 24px; margin-bottom: 40px;
}
.trust-logo-item {
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  padding: 24px 16px; background: var(--dark2);
  border-radius: 12px; border: 1px solid var(--border);
  transition: all 0.3s ease;
  cursor: default;
}
.trust-logo-item:hover {
  transform: translateY(-5px) scale(1.03);
  border-color: rgba(201,168,76,0.3);
  box-shadow: 0 10px 30px rgba(0,0,0,0.3), 0 0 20px rgba(201,168,76,0.08);
  background: linear-gradient(145deg, var(--dark2) 0%, var(--dark3) 100%);
}
.trust-logo-icon { font-size: 32px; animation: brandGlow 3s ease-in-out infinite; }
@keyframes brandGlow {
  0%, 100% { filter: drop-shadow(0 0 6px rgba(201,168,76,0.2)); }
  50% { filter: drop-shadow(0 0 14px rgba(201,168,76,0.4)); }
}
.trust-logo-name { color: var(--white); font-weight: 600; font-size: 14px; }
.trust-logo-tag { font-size: 11px; color: var(--gold); background: rgba(201,168,76,0.1); padding: 2px 8px; border-radius: 10px; }

/* ===== 轮播卡片悬停效果增强 ===== */
.review-card-enhanced:hover .review-avatar {
  transform: scale(1.1); box-shadow: 0 0 15px rgba(201,168,76,0.3);
}
.review-avatar {
  width: 44px; height: 44px; border-radius: 50%; background: var(--gold);
  color: #000; display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 18px;
  transition: all 0.3s ease;
  flex-shrink: 0;
}

/* ===== 权威资质展示区 ===== */
.auth-card:hover {
  transform: translateY(-6px);
  border-color: rgba(201,168,76,0.4);
  box-shadow: 0 12px 40px rgba(0,0,0,0.4), 0 0 30px rgba(201,168,76,0.1);
}

/* ===== FAQ 常见问答 ===== */
.faq-q.open { color: var(--gold) !important; }
.faq-item:hover .faq-q { color: var(--gold); }

/* ===== 悬浮效果增强 ===== */
.scroll-reveal.authority-section .auth-card {
  animation: fadeInUp 0.6s ease forwards;
}
.scroll-reveal.authority-section .auth-card:nth-child(1) { animation-delay: 0.1s; opacity: 0; }
.scroll-reveal.authority-section .auth-card:nth-child(2) { animation-delay: 0.2s; opacity: 0; }
.scroll-reveal.authority-section .auth-card:nth-child(3) { animation-delay: 0.3s; opacity: 0; }
.scroll-reveal.authority-section .auth-card:nth-child(4) { animation-delay: 0.4s; opacity: 0; }
.scroll-reveal.authority-section .auth-card:nth-child(5) { animation-delay: 0.5s; opacity: 0; }

/* ===== 优惠横幅倒计时样式 ===== */
#promoTimer {
  color: var(--gold);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

/* ===== 滚动入场动画触发增强 ===== */
.scroll-reveal .auth-card {
  animation: fadeInUp 0.6s ease forwards;
  animation-delay: 0.1s;
  opacity: 0;
}