/**
 * CNNLIFT 中龙租赁 - 现代特种工业设备前端样式库
 * 遵循 MIT 宽松商业开源规范，100% 独立原创自主编写，零侵权代码
 * 适配 Desktop / Tablet / Mobile 响应式
 */

:root {
  --primary-dark: #0f172a;
  --surface-dark: #1e293b;
  --surface-card: #ffffff;
  --surface-bg: #f8fafc;
  --surface-alt: #f1f5f9;
  
  --accent-amber: #f59e0b;
  --accent-orange: #ea580c;
  --accent-orange-hover: #c2410c;
  --accent-green: #10b981;
  
  --text-main: #0f172a;
  --text-muted: #64748b;
  --text-light: #94a3b8;
  --text-white: #ffffff;
  
  --border-light: #e2e8f0;
  --border-dark: #334155;
  
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;
  
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-cta: 0 4px 14px 0 rgba(234, 88, 12, 0.4);
  
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
  --container-max: 1200px;
}

/* Reset & Basics */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-family: var(--font-family);
  color: var(--text-main);
  background-color: var(--surface-bg);
  line-height: 1.6;
}

body {
  overflow-x: hidden;
  padding-bottom: 70px; /* Space for mobile sticky bar */
}

@media (min-width: 768px) {
  body {
    padding-bottom: 0;
  }
}

a {
  color: inherit;
  text-decoration: none;
  transition: all 0.2s ease;
}

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

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* Header & Navigation */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid #e2e8f0;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.logo-wrap {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: inherit;
  cursor: pointer;
}

.logo-badge {
  background: linear-gradient(135deg, var(--accent-orange), var(--accent-amber));
  color: #fff;
  font-weight: 900;
  font-size: 1.25rem;
  letter-spacing: -0.5px;
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-sm);
}

.logo-text h1,
.logo-text .logo-title {
  font-size: 1.15rem;
  font-weight: 800;
  color: #0f172a;
  line-height: 1.2;
  display: block;
}

.logo-text p {
  font-size: 0.75rem;
  color: #64748b;
  letter-spacing: 0.5px;
}

.main-nav {
  display: none;
}

@media (min-width: 992px) {
  .main-nav {
    display: flex;
    align-items: center;
    gap: 0.35rem;
  }
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: #334155;
  font-size: 0.92rem;
  font-weight: 600;
  padding: 0.42rem 0.65rem;
  border-radius: var(--radius-sm);
  position: relative;
  text-decoration: none;
  white-space: nowrap;
  transition: all 0.2s ease;
}

.nav-link:hover {
  color: var(--accent-orange);
  background-color: #fff7ed;
}

.nav-link.active {
  color: #ea580c;
  background-color: #ffedd5;
  border: 1px solid #fed7aa;
  font-weight: 700;
}

.nav-badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.1rem 0.4rem;
  border-radius: 4px;
  background-color: #f1f5f9;
  color: #64748b;
  vertical-align: middle;
  line-height: 1.2;
  letter-spacing: 0;
  transition: all 0.2s ease;
}

.nav-link:hover .nav-badge {
  background-color: #fed7aa;
  color: #ea580c;
}

.nav-link.active .nav-badge {
  background-color: #ffedd5;
  color: #ea580c;
}

@media (max-width: 1200px) {
  .nav-badge {
    display: none;
  }
  .main-nav {
    gap: 0.2rem;
  }
  .nav-link {
    padding: 0.4rem 0.5rem;
    font-size: 0.88rem;
  }
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

.btn-header-call {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  background: linear-gradient(135deg, var(--accent-orange), var(--accent-amber));
  color: #ffffff;
  padding: 0 1.15rem;
  height: 40px;
  border-radius: var(--radius-md); /* 8px，与设备卡片调车按钮规格完全一致 */
  font-weight: 800;
  font-size: 0.95rem;
  letter-spacing: 0.3px;
  box-shadow: 0 4px 14px rgba(234, 88, 12, 0.35);
  text-decoration: none;
  white-space: nowrap; /* 核心：严禁折行 */
  flex-shrink: 0;
  transition: transform 0.2s ease, box-shadow 0.2s ease, filter 0.2s ease;
}

.btn-header-call:hover {
  background: linear-gradient(135deg, var(--accent-orange-hover), var(--accent-orange));
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(234, 88, 12, 0.48);
}

.btn-header-call .call-icon {
  font-size: 1.05rem;
  line-height: 1;
}

.btn-header-call .js-tel-text,
.btn-header-call .call-number {
  white-space: nowrap;
}

@media (max-width: 991px) {
  .header-actions,
  .btn-header-call {
    display: none !important; /* 移动端/无线端隐藏右上角电话直呼，释放顶部导航空间 */
  }
}

@media (max-width: 768px) {
  .header-inner {
    height: 58px;
  }
  .logo-wrap {
    gap: 0.5rem;
  }
  .logo-badge {
    font-size: 1.05rem;
    padding: 0.2rem 0.45rem;
  }
  .logo-text h1,
  .logo-text .logo-title {
    font-size: 1.05rem;
  }
  .logo-text p {
    display: none;
  }
}

@media (max-width: 576px) {
  .header-inner {
    padding: 0 0.5rem;
    gap: 0.4rem;
  }
  .logo-badge {
    font-size: 0.95rem;
    padding: 0.15rem 0.4rem;
  }
  .logo-text h1,
  .logo-text .logo-title {
    font-size: 0.95rem;
    white-space: nowrap;
  }
  .mobile-nav-group {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    flex-shrink: 0;
  }
  .mobile-nav-btn {
    height: 34px;
    padding: 0 0.5rem;
    font-size: 0.78rem;
    gap: 0.2rem;
  }
  .mobile-nav-btn .btn-label {
    font-size: 0.76rem;
  }
}

/* Hero Section */
.hero-section {
  background: linear-gradient(180deg, var(--primary-dark) 0%, #1e293b 100%);
  color: #fff;
  padding: 3rem 0 4rem;
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: center;
}

@media (max-width: 768px) {
  .hero-section {
    padding: 2rem 0 2.5rem;
  }
  .hero-grid {
    gap: 1.75rem;
  }
}

@media (min-width: 992px) {
  .hero-grid {
    grid-template-columns: 1.15fr 0.85fr;
  }
}

.hero-badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}

.badge-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background-color: rgba(245, 158, 11, 0.15);
  color: var(--accent-amber);
  border: 1px solid rgba(245, 158, 11, 0.3);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 600;
}

.hero-title {
  font-size: 2.1rem;
  font-weight: 900;
  line-height: 1.25;
  margin-bottom: 1rem;
  letter-spacing: -0.5px;
}

@media (min-width: 768px) {
  .hero-title {
    font-size: 2.85rem;
  }
}

.text-gradient {
  background: linear-gradient(90deg, #fbbf24, #f97316);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.05rem;
  color: var(--text-light);
  margin-bottom: 1.75rem;
  line-height: 1.7;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2rem;
}

.btn-cta-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: linear-gradient(135deg, var(--accent-orange), #d97706);
  color: #fff;
  font-size: 1.05rem;
  font-weight: 700;
  padding: 0.85rem 1.75rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-cta);
  transition: all 0.25s ease;
}

.btn-cta-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(234, 88, 12, 0.55);
}

.btn-cta-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background-color: rgba(255, 255, 255, 0.1);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.2);
  font-size: 1.05rem;
  font-weight: 600;
  padding: 0.85rem 1.5rem;
  border-radius: var(--radius-md);
  transition: all 0.2s ease;
}

.btn-cta-secondary:hover {
  background-color: rgba(255, 255, 255, 0.18);
  border-color: #fff;
}

.hero-guarantee-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border-dark);
}

@media (min-width: 576px) {
  .hero-guarantee-list {
    grid-template-columns: repeat(4, 1fr);
  }
}

.guarantee-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: #cbd5e1;
}

.guarantee-item span.icon {
  color: var(--accent-amber);
  font-size: 1.1rem;
}

/* Hero Right: Quick Quote Card */
.quick-quote-card {
  background-color: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  box-shadow: var(--shadow-card);
}

.card-header-badge {
  display: inline-block;
  background-color: var(--accent-orange);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-sm);
  margin-bottom: 0.5rem;
}

.quick-quote-card h3 {
  font-size: 1.35rem;
  font-weight: 800;
  color: #0f172a;
  margin-bottom: 0.25rem;
}

.quick-quote-card p.card-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
}

.form-group {
  margin-bottom: 1rem;
}

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: #334155;
  margin-bottom: 0.35rem;
}

.form-select, .form-input {
  width: 100%;
  height: 44px;
  background-color: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  color: #0f172a;
  padding: 0 0.85rem;
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-select:focus, .form-input:focus {
  border-color: var(--accent-orange);
  box-shadow: 0 0 0 3px rgba(234, 88, 12, 0.15);
}

.btn-submit-quote {
  width: 100%;
  height: 48px;
  background: linear-gradient(135deg, var(--accent-amber), var(--accent-orange));
  color: #fff;
  border: none;
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: opacity 0.2s, transform 0.2s;
  margin-top: 0.5rem;
}

.btn-submit-quote:hover {
  opacity: 0.95;
  transform: translateY(-1px);
}

.form-note {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-align: center;
  margin-top: 0.75rem;
}

/* Hero Right: Showcase Matrix Card */
.hero-showcase-card {
  background-color: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-card);
}

.showcase-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.live-dot {
  width: 10px;
  height: 10px;
  background-color: #22c55e;
  border-radius: 50%;
  display: inline-block;
  box-shadow: 0 0 8px #22c55e;
  animation: pulseGreen 2s infinite;
}

@keyframes pulseGreen {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.85); }
}

.showcase-tag {
  background-color: rgba(249, 115, 22, 0.15);
  color: var(--accent-orange);
  border: 1px solid rgba(249, 115, 22, 0.3);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-sm);
}

.showcase-title {
  font-size: 1.25rem;
  font-weight: 800;
  color: #0f172a;
  margin-bottom: 0.35rem;
}

.showcase-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 1.25rem;
}

.showcase-matrix {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-bottom: 1.25rem;
}

.matrix-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background-color: #f8fafc;
  border: 1px solid var(--border-light);
  padding: 0.65rem 0.85rem;
  border-radius: var(--radius-md);
  transition: all 0.2s;
  text-decoration: none;
}

.matrix-item:hover {
  border-color: var(--accent-orange);
  background-color: #fff7ed;
  transform: translateX(4px);
}

.matrix-icon {
  font-size: 1.35rem;
  flex-shrink: 0;
}

.matrix-info {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.matrix-info strong {
  font-size: 0.92rem;
  color: #0f172a;
  font-weight: 700;
}

.matrix-info span {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.matrix-arrow {
  color: var(--accent-orange);
  font-size: 1.25rem;
  font-weight: 700;
}

.showcase-cta {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.btn-showcase-call {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  height: 44px;
  background: linear-gradient(135deg, var(--accent-orange), var(--accent-amber));
  color: #fff;
  font-weight: 800;
  font-size: 0.95rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-cta);
  text-decoration: none;
  transition: transform 0.2s;
}

.btn-showcase-call:hover {
  transform: translateY(-1px);
}

.btn-showcase-wechat {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  height: 42px;
  background-color: #f0fdf4;
  color: #15803d;
  border: 1px solid #86efac;
  font-weight: 600;
  font-size: 0.85rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.2s;
}

.btn-showcase-wechat:hover {
  background-color: #dcfce7;
  color: #15803d;
  border-color: #4ade80;
}

/* Sections Common */
.section {
  padding: 4.5rem 0;
}

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

.section-dark {
  background-color: var(--primary-dark);
  color: #fff;
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 3rem;
}

.section-header h1,
.section-header h2 {
  font-size: 1.9rem;
  font-weight: 800;
  margin-bottom: 0.75rem;
  letter-spacing: -0.5px;
}

@media (min-width: 768px) {
  .section-header h1,
  .section-header h2 {
    font-size: 2.3rem;
  }
}

.section-header p {
  font-size: 1rem;
  color: var(--text-muted);
}

.section-dark .section-header p {
  color: var(--text-light);
}

/* Product Cards Grid */
.product-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .product-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .product-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.product-card {
  background-color: var(--surface-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: transform 0.25s, box-shadow 0.25s;
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: #cbd5e1;
}

.product-thumb-wrap {
  position: relative;
  width: 100%;
  height: 230px;
  background: radial-gradient(circle at center, #ffffff 0%, #f8fafc 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 0.5rem;
  border-bottom: 1px solid var(--border-light);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  cursor: zoom-in;
}

/* 高斯模糊全景氛围背景 (轻量化柔彩弥散，铺满整张卡片消除白边同时保持明亮通透) */
.thumb-ambient-bg {
  position: absolute;
  inset: -20px;
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
  filter: blur(32px) saturate(1.15) brightness(1.06);
  -webkit-filter: blur(32px) saturate(1.15) brightness(1.06);
  transform: scale(1.18);
  opacity: 0.22;
  pointer-events: none;
  z-index: 1;
  transition: transform 0.4s ease, opacity 0.4s ease;
}

.product-card:hover .thumb-ambient-bg {
  transform: scale(1.25);
  opacity: 0.35;
}

/* 现代明亮工作室柔光渐变，突出设备机械质感 */
.product-thumb-wrap::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at center, rgba(255, 255, 255, 0.65) 0%, rgba(241, 245, 249, 0.25) 100%);
  z-index: 2;
  pointer-events: none;
}

.product-thumb-wrap img {
  position: relative;
  z-index: 3;
  width: auto;
  height: auto;
  max-width: 92%;
  max-height: 92%;
  object-fit: contain;
  object-position: center center;
  border-radius: 6px;
  filter: drop-shadow(0 6px 14px rgba(15, 23, 42, 0.08));
  transition: transform 0.35s ease, filter 0.35s ease;
}

.product-card:hover .product-thumb-wrap img {
  transform: scale(1.04) translateY(-2px);
  filter: drop-shadow(0 10px 20px rgba(15, 23, 42, 0.14));
}

.thumb-zoom-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  z-index: 4;
  background-color: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  color: #475569;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.22rem 0.55rem;
  border-radius: var(--radius-sm);
  border: 1px solid #e2e8f0;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
  display: flex;
  align-items: center;
  gap: 0.25rem;
  transition: all 0.25s ease;
  pointer-events: none;
}

.product-card:hover .thumb-zoom-badge {
  background-color: var(--accent-orange);
  border-color: var(--accent-orange);
  color: #ffffff;
  transform: scale(1.05);
  box-shadow: 0 2px 8px rgba(234, 88, 12, 0.28);
}

.card-top-tag {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 4;
  background-color: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(6px);
  color: #0f172a;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-sm);
  border: 1px solid #fed7aa;
  border-left: 3px solid var(--accent-orange);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
}

.card-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.card-body h3 {
  font-size: 1.25rem;
  font-weight: 800;
  margin-bottom: 0.4rem;
}

.card-tagline {
  font-size: 0.85rem;
  color: var(--accent-orange);
  font-weight: 600;
  margin-bottom: 1rem;
}

.spec-pills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
  background-color: var(--surface-bg);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 0.75rem 0.5rem;
  margin-bottom: 1.25rem;
  text-align: center;
}

.spec-pill .label {
  display: block;
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-bottom: 0.15rem;
}

.spec-pill .val {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-main);
}

.card-footer-actions {
  margin-top: auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
}

.btn-card-detail {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: var(--surface-alt);
  color: var(--text-main);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 0.6rem 0;
  font-size: 0.85rem;
  font-weight: 600;
  transition: all 0.2s;
}

.btn-card-detail:hover {
  background-color: var(--text-main);
  color: #fff;
}

.btn-card-call {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.25rem;
  background-color: var(--accent-orange);
  color: #fff;
  border-radius: var(--radius-md);
  padding: 0.6rem 0;
  font-size: 0.85rem;
  font-weight: 700;
  transition: background-color 0.2s;
}

.btn-card-call:hover {
  background-color: var(--accent-orange-hover);
}

/* Feature Matrix Cards */
.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 992px) {
  .features-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.feature-box {
  background-color: var(--surface-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s;
}

.feature-box:hover {
  transform: translateY(-3px);
  border-color: var(--accent-amber);
}

.feature-icon-circle {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background-color: rgba(245, 158, 11, 0.15);
  color: var(--accent-amber);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 1rem;
}

.feature-box h4 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.feature-box p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Landmark Cases Section */
.case-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .case-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.case-card {
  background-color: var(--surface-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
}

.case-img-wrap {
  height: 240px;
  overflow: hidden;
  position: relative;
}

.case-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.case-tags {
  position: absolute;
  bottom: 12px;
  left: 12px;
  display: flex;
  gap: 0.4rem;
}

.case-tag {
  background-color: rgba(15, 23, 42, 0.85);
  color: #fff;
  font-size: 0.7rem;
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-sm);
}

.case-content {
  padding: 1.5rem;
}

.case-content h4 {
  font-size: 1.25rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
}

.case-row {
  font-size: 0.88rem;
  margin-bottom: 0.5rem;
  line-height: 1.5;
}

.case-row strong {
  color: var(--text-main);
}

/* Dispatch Hubs Section */
.hubs-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

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

.hub-card {
  background-color: var(--surface-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
}

.hub-title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.25rem;
  font-weight: 800;
  margin-bottom: 0.75rem;
}

.hub-title .badge {
  background-color: var(--accent-orange);
  color: #fff;
  font-size: 0.7rem;
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-full);
}

.hub-detail {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

/* Footer */
.site-footer {
  background-color: var(--primary-dark);
  color: #94a3b8;
  padding: 3.5rem 0 2rem;
  border-top: 1px solid var(--border-dark);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-bottom: 2.5rem;
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 1.5fr 1fr 1fr;
  }
}

.footer-brand h3 {
  color: #fff;
  font-size: 1.35rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
}

.footer-brand p {
  font-size: 0.88rem;
  line-height: 1.7;
}

.footer-col h4 {
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.5rem;
  font-size: 0.88rem;
}

.footer-links a:hover {
  color: #fff;
}

.footer-bottom {
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-dark);
  text-align: center;
  font-size: 0.8rem;
  color: #64748b;
}

.footer-bottom .icp-link {
  color: #94a3b8;
  text-decoration: none;
  transition: color 0.2s ease;
}

.footer-bottom .icp-link:hover {
  color: var(--accent-orange);
  text-decoration: underline;
}

/* Floating Sidebar (Desktop) */
.desktop-floating-bar {
  display: none;
  position: fixed;
  right: 20px;
  bottom: 80px;
  z-index: 900;
  flex-direction: column;
  gap: 10px;
}

@media (min-width: 992px) {
  .desktop-floating-bar {
    display: flex;
  }
}

.float-btn {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background-color: var(--surface-dark);
  color: #fff;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  cursor: pointer;
  border: 1px solid var(--border-dark);
  transition: all 0.2s;
  font-size: 0.7rem;
}

.float-btn span.icon {
  font-size: 1.25rem;
}

.float-btn:hover {
  background-color: var(--accent-orange);
  border-color: var(--accent-orange);
  transform: translateX(-3px);
}

/* Mobile Sticky Conversion Bar */
.mobile-sticky-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 60px;
  background-color: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 1px solid #e2e8f0;
  box-shadow: 0 -4px 18px rgba(15, 23, 42, 0.06);
  z-index: 2200;
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  align-items: center;
  padding: 0 0.75rem;
  gap: 0.6rem;
}

@media (min-width: 768px) {
  .mobile-sticky-bar {
    display: none;
  }
}

/* 当商品详情弹窗或任意模态层激活时，彻底隐藏移动端吸底条，杜绝电话与微信在底部双重重复出现 */
body.modal-open .mobile-sticky-bar,
body:has(.modal-overlay.active) .mobile-sticky-bar,
body:has(.image-lightbox-overlay.active) .mobile-sticky-bar,
.modal-overlay.active ~ .mobile-sticky-bar,
.image-lightbox-overlay.active ~ .mobile-sticky-bar {
  display: none !important;
}

.mobile-call-btn {
  height: 44px;
  background: linear-gradient(135deg, var(--accent-orange), var(--accent-amber));
  color: #fff;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  font-weight: 800;
  font-size: 0.95rem;
  box-shadow: var(--shadow-cta);
  text-decoration: none;
}

.mobile-sub-btn {
  height: 44px;
  background-color: #f0fdf4;
  color: #15803d;
  border: 1px solid #86efac;
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-size: 0.78rem;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.2s ease;
}

.mobile-sub-btn:hover,
.mobile-sub-btn:active {
  background-color: #dcfce7;
  border-color: #4ade80;
}

/* ===================================================
   Specs Comparison Table Component (Dual Sticky & Responsive)
   =================================================== */
.table-scroll-hint {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  font-size: 0.82rem;
  color: #475569;
  background: #f8fafc;
  border: 1px dashed #cbd5e1;
  border-radius: var(--radius-md);
  padding: 0.55rem 0.85rem;
  margin-bottom: 0.75rem;
  font-weight: 500;
}

.table-scroll-hint .hint-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: #b45309;
  font-weight: 700;
}

.table-scroll-hint .hint-sub {
  color: #64748b;
  font-size: 0.78rem;
}

.specs-table-container {
  position: relative;
  overflow-x: auto;
  overflow-y: auto;
  max-height: 520px;
  -webkit-overflow-scrolling: touch;
  border: 1px solid #cbd5e1;
  border-radius: var(--radius-lg);
  background-color: #ffffff;
  box-shadow: 0 4px 16px rgba(15, 23, 42, 0.05);
  margin: 1.5rem 0 2.5rem 0;
}

/* Custom Scrollbar for Sleek Feel */
.specs-table-container::-webkit-scrollbar {
  height: 6px;
  width: 6px;
}
.specs-table-container::-webkit-scrollbar-track {
  background: #f1f5f9;
  border-radius: 4px;
}
.specs-table-container::-webkit-scrollbar-thumb {
  background: #94a3b8;
  border-radius: 4px;
}
.specs-table-container::-webkit-scrollbar-thumb:hover {
  background: #64748b;
}

.specs-table {
  width: 100%;
  min-width: 720px; /* Crucial: Prevents column squishing and text wrapping on mobile */
  border-collapse: separate; /* Required for sticky positioning */
  border-spacing: 0;
  text-align: left;
  font-size: 0.88rem;
}

/* 1. Sticky Header Row (表头标题栏固定置顶) */
.specs-table thead th {
  position: sticky;
  top: 0;
  z-index: 10;
  background-color: #f1f5f9;
  color: #0f172a;
  padding: 0.85rem 1rem;
  font-weight: 800;
  white-space: nowrap;
  border-bottom: 2px solid var(--accent-orange);
  letter-spacing: 0.3px;
}

/* 2. Sticky First Column (型号/分类列固定锁定) */
.specs-table th:first-child,
.specs-table td:first-child {
  position: sticky;
  left: 0;
  z-index: 8;
  background-color: #ffffff;
  white-space: nowrap;
  border-right: 2px solid #cbd5e1;
  box-shadow: 4px 0 8px rgba(15, 23, 42, 0.06);
}

/* 3. Top-Left Intersecting Header (表头首列交叉角单元格 - 最高层级) */
.specs-table thead th:first-child {
  position: sticky;
  top: 0;
  left: 0;
  z-index: 20;
  background-color: #e2e8f0;
  color: #0f172a;
  border-right: 2px solid #cbd5e1;
  box-shadow: 4px 2px 8px rgba(15, 23, 42, 0.06);
}

/* Data Cells */
.specs-table td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid #e2e8f0;
  color: #334155;
  white-space: nowrap;
  vertical-align: middle;
}

/* Alternating Rows (Zebra Striping) */
.specs-table tbody tr:nth-child(even) td {
  background-color: #f8fafc;
}
.specs-table tbody tr:nth-child(even) td:first-child {
  background-color: #f1f5f9;
}

/* Hover & Active Highlight */
.specs-table tbody tr:hover td {
  background-color: #eff6ff;
  color: #1e3a8a;
}
.specs-table tbody tr:hover td:first-child {
  background-color: #dbeafe;
  color: #1e40af;
}

/* Mobile Responsive Optimization */
@media (max-width: 768px) {
  .specs-table-container {
    margin: 1rem 0 2rem 0;
    border-radius: var(--radius-md);
  }
  .specs-table {
    min-width: 680px;
    font-size: 0.82rem;
  }
  .specs-table thead th {
    padding: 0.75rem 0.85rem;
    font-size: 0.8rem;
  }
  .specs-table td {
    padding: 0.75rem 0.85rem;
  }
  .table-scroll-hint {
    font-size: 0.75rem;
    padding: 0.45rem 0.65rem;
  }
}

/* Modal Popup */
.modal-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(15, 23, 42, 0.75);
  backdrop-filter: blur(5px);
  -webkit-backdrop-filter: blur(5px);
  z-index: 3000; /* 高于吸底栏 2200，保证弹窗全层覆盖且不露底 */
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  overflow-y: auto;
}

.modal-overlay#wechat-modal {
  z-index: 3500;
}

.modal-overlay#image-lightbox-modal {
  z-index: 4000;
}

@media (max-width: 768px) {
  .modal-overlay {
    padding: 0.5rem 0.65rem;
    align-items: center;
  }
}

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

.modal-box {
  background-color: #fff;
  border-radius: var(--radius-lg);
  max-width: 400px;
  width: 100%;
  padding: 2rem;
  text-align: center;
  position: relative;
  box-shadow: var(--shadow-lg);
}

.modal-close {
  position: absolute;
  top: 12px;
  right: 12px;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-muted);
}


/* Mobile & Tablet Navigation Enhancements */
.mobile-nav-group {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  flex-shrink: 0;
}

@media (min-width: 992px) {
  .mobile-nav-group {
    display: none !important;
  }
}

.mobile-nav-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.25rem;
  height: 36px;
  padding: 0 0.65rem;
  background-color: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: var(--radius-md);
  color: #334155;
  font-size: 0.82rem;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  transition: all 0.2s ease;
  user-select: none;
}

.mobile-nav-btn:hover,
.mobile-nav-btn:active {
  background-color: #fff7ed;
  border-color: #fed7aa;
  color: var(--accent-orange);
}

.mobile-nav-btn.mobile-menu-toggle {
  background-color: #fff7ed;
  border-color: #fed7aa;
  color: #ea580c;
}

.mobile-nav-btn.mobile-menu-toggle:hover,
.mobile-nav-btn.mobile-menu-toggle:active,
.mobile-nav-btn.mobile-menu-toggle.active {
  background: linear-gradient(135deg, var(--accent-orange), var(--accent-amber));
  border-color: transparent;
  color: #ffffff;
}

.mobile-nav-btn.mobile-home-btn {
  background-color: #f8fafc;
  border-color: #e2e8f0;
  color: #334155;
}

.mobile-nav-btn.mobile-home-btn:hover,
.mobile-nav-btn.mobile-home-btn:active,
.mobile-nav-btn.mobile-home-btn.active {
  background: linear-gradient(135deg, var(--accent-orange), var(--accent-amber));
  border-color: transparent;
  color: #ffffff;
}

.mobile-nav-btn .btn-icon {
  font-size: 0.95rem;
  line-height: 1;
}

.mobile-nav-btn .btn-label {
  font-size: 0.8rem;
  line-height: 1;
}

/* Breadcrumb Navigation Bar (各产品专页清晰路径) */
.breadcrumb-bar {
  background-color: #ffffff;
  border-bottom: 1px solid #e2e8f0;
  padding: 0.55rem 0;
}

.breadcrumb-nav {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.82rem;
  color: var(--text-muted);
  flex-wrap: wrap;
}

.breadcrumb-nav .crumb-item {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  color: #64748b;
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s;
}

.breadcrumb-nav .crumb-item:hover {
  color: var(--accent-orange);
}

.breadcrumb-nav .crumb-home {
  color: #0f172a;
  font-weight: 700;
  padding: 0.15rem 0.5rem;
  background-color: #f8fafc;
  border-radius: var(--radius-sm);
  border: 1px solid #e2e8f0;
}

.breadcrumb-nav .crumb-separator {
  color: #cbd5e1;
  font-size: 0.75rem;
}

.breadcrumb-nav .crumb-current {
  color: var(--accent-orange);
  font-weight: 700;
}

.quick-chips-bar::-webkit-scrollbar {
  display: none; /* Chrome/Safari */
}

@media (min-width: 992px) {
  .quick-chips-bar {
    display: none;
  }
}

.chip-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-full);
  background-color: #ffffff;
  color: #475569;
  font-size: 0.8rem;
  font-weight: 600;
  border: 1px solid #e2e8f0;
  flex-shrink: 0;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
  transition: all 0.2s;
}

.chip-link.active, .chip-link:hover {
  background-color: var(--accent-orange);
  color: #fff;
  border-color: var(--accent-orange);
  box-shadow: 0 2px 8px rgba(234, 88, 12, 0.25);
}


/* Product Detail Modal (详细资料弹窗 - 自适应大小与常驻电话微信) */
.product-modal-box {
  background-color: #fff;
  border-radius: var(--radius-lg);
  max-width: 600px;
  width: 100%;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  padding: 1.25rem 1.5rem;
  position: relative;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.35);
  text-align: left;
  border: 1px solid var(--border-light);
  overflow: hidden;
}

.modal-detail-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-light);
  padding-bottom: 0.75rem;
  margin-bottom: 0.75rem;
  flex-shrink: 0;
  padding-right: 2rem;
}

.modal-detail-title h3 {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 0.2rem;
  line-height: 1.3;
}

.modal-detail-title p {
  font-size: 0.82rem;
  color: var(--accent-orange);
  font-weight: 600;
}

.modal-detail-body {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  overflow-y: auto;
  flex: 1;
  min-height: 0;
  padding-right: 0.35rem;
  -webkit-overflow-scrolling: touch;
}

.modal-detail-body::-webkit-scrollbar {
  width: 5px;
}
.modal-detail-body::-webkit-scrollbar-thumb {
  background-color: #cbd5e1;
  border-radius: 4px;
}

/* Modal Gallery & Slider */
.modal-gallery-wrap {
  width: 100%;
  height: 250px;
  background: radial-gradient(circle at center, #ffffff 0%, #f8fafc 100%);
  border-radius: var(--radius-md);
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border-light);
  flex-shrink: 0;
  cursor: zoom-in;
  user-select: none;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem;
}

.gallery-slide-container {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.gallery-active-img {
  width: 100%;
  height: 100%;
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  object-position: center center;
  filter: drop-shadow(0 4px 12px rgba(15, 23, 42, 0.08));
  transition: opacity 0.22s ease-in-out, transform 0.25s;
}

.modal-gallery-wrap:hover .gallery-active-img {
  transform: scale(1.02);
}

.gallery-nav-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 32px;
  height: 32px;
  background-color: rgba(255, 255, 255, 0.92);
  color: #334155;
  border: 1px solid #cbd5e1;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  font-weight: 700;
  cursor: pointer;
  z-index: 5;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.06);
  transition: all 0.2s;
  backdrop-filter: blur(4px);
}

.gallery-nav-btn:hover {
  background-color: var(--accent-orange);
  border-color: var(--accent-orange);
  color: #ffffff;
}

.gallery-nav-btn.prev-btn { left: 8px; }
.gallery-nav-btn.next-btn { right: 8px; }

.gallery-badge-bar {
  position: absolute;
  top: 8px;
  right: 8px;
  display: flex;
  align-items: center;
  gap: 0.35rem;
  z-index: 5;
}

.gallery-zoom-badge {
  background-color: rgba(255, 255, 255, 0.94);
  color: #ea580c;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-full);
  border: 1px solid #fed7aa;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
  backdrop-filter: blur(4px);
}

.gallery-counter {
  background-color: rgba(255, 255, 255, 0.94);
  color: #334155;
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-full);
  border: 1px solid #e2e8f0;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

.gallery-dots {
  position: absolute;
  bottom: 8px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 6px;
  z-index: 5;
}

.gallery-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: #cbd5e1;
  transition: all 0.2s;
  cursor: pointer;
}

.gallery-dot.active {
  background-color: var(--accent-orange);
  width: 18px;
  border-radius: 4px;
}

/* Lightbox (全屏放大预览，再点一下缩回) */
.image-lightbox-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.94);
  backdrop-filter: blur(8px);
  z-index: 3000;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  touch-action: pan-y;
  cursor: zoom-out;
}

.image-lightbox-overlay.active {
  display: flex;
}

.lightbox-content {
  position: relative;
  max-width: 95vw;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.lightbox-close {
  position: fixed;
  top: 16px;
  right: 16px;
  width: 44px;
  height: 44px;
  background-color: rgba(255, 255, 255, 0.15);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  font-size: 1.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 3020;
  transition: background-color 0.2s;
}

.lightbox-close:hover {
  background-color: var(--accent-orange);
}

.lightbox-img-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  max-width: 92vw;
  max-height: 82vh;
}

.lightbox-zoom-img {
  max-width: 100%;
  max-height: 82vh;
  object-fit: contain;
  border-radius: var(--radius-md);
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.6);
  cursor: zoom-out;
  transition: transform 0.2s ease-out;
}

.lightbox-nav-btn {
  position: fixed;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  background-color: rgba(255, 255, 255, 0.15);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  font-weight: 700;
  cursor: pointer;
  z-index: 3020;
  transition: all 0.2s;
}

.lightbox-nav-btn:hover {
  background-color: var(--accent-orange);
}

.lightbox-nav-btn.lightbox-prev { left: 16px; }
.lightbox-nav-btn.lightbox-next { right: 16px; }

.lightbox-footer {
  margin-top: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: #e2e8f0;
  font-size: 0.85rem;
  z-index: 3020;
}

.lightbox-counter {
  background-color: rgba(255, 255, 255, 0.2);
  padding: 0.2rem 0.65rem;
  border-radius: var(--radius-full);
  font-weight: 700;
}

.lightbox-tip {
  color: #94a3b8;
  font-size: 0.8rem;
}

.modal-specs-table-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.4rem;
}

.modal-spec-item {
  background-color: var(--surface-bg);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 0.5rem 0.65rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.82rem;
}

.modal-spec-item .s-label {
  color: var(--text-muted);
  white-space: nowrap;
  margin-right: 0.4rem;
}

.modal-spec-item .s-val {
  font-weight: 700;
  color: var(--text-main);
  text-align: right;
}

.modal-highlight-box {
  background-color: #fffbeb;
  border: 1px solid #fde68a;
  border-radius: var(--radius-md);
  padding: 0.75rem 0.85rem;
  font-size: 0.82rem;
  color: #92400e;
  line-height: 1.5;
}

/* Modal Bottom Action Bar (电话 + 直接呈现微信二维码) */
.modal-action-bar {
  display: grid;
  grid-template-columns: 1.25fr 1fr;
  gap: 0.65rem;
  align-items: stretch;
  padding-top: 0.65rem;
  margin-top: 0.5rem;
  border-top: 1px solid var(--border-light);
  flex-shrink: 0;
  background: #fff;
}

.btn-modal-call {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: linear-gradient(135deg, var(--accent-orange), var(--accent-amber));
  color: #fff;
  border-radius: var(--radius-md);
  padding: 0.5rem 0.75rem;
  box-shadow: var(--shadow-cta);
  text-decoration: none;
  transition: transform 0.2s;
  height: 68px;
}

.btn-modal-call:hover {
  transform: translateY(-1px);
}

.btn-modal-call .call-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
}

.call-text-wrap {
  display: flex;
  flex-direction: column;
  line-height: 1.25;
}

.call-title {
  font-size: 0.88rem;
  font-weight: 800;
  white-space: nowrap;
}

.call-tel {
  font-size: 0.8rem;
  opacity: 0.95;
  font-weight: 600;
  white-space: nowrap;
}

.modal-direct-wechat-box {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background-color: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: var(--radius-md);
  padding: 0.35rem 0.55rem;
  height: 68px;
  box-shadow: var(--shadow-sm);
}

.wechat-qr-frame {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-sm);
  background-color: #fff;
  border: 1px solid #cbd5e1;
  padding: 2px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-qr-thumb {
  width: 100%;
  height: 100%;
  object-fit: contain;
  user-select: auto;
  -webkit-touch-callout: default;
  cursor: pointer;
}

.wechat-text-info {
  display: flex;
  flex-direction: column;
  line-height: 1.25;
}

.wechat-badge-title {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.85rem;
  color: #0f172a;
}

.wechat-sub-hint {
  font-size: 0.72rem;
  color: #ea580c;
  font-weight: 700;
  margin-top: 2px;
}

.wechat-num {
  font-size: 0.7rem;
  color: var(--text-muted);
}

@media (max-width: 768px) {
  .product-modal-box {
    max-height: calc(100vh - 25px);
    padding: 0.85rem 0.75rem;
    border-radius: var(--radius-md);
  }
  .modal-detail-title h3 {
    font-size: 1.1rem;
  }
  .modal-detail-title p {
    font-size: 0.78rem;
  }
  .modal-gallery-wrap {
    height: 200px;
    padding: 0.35rem;
  }
  .product-thumb-wrap {
    height: 195px;
    padding: 0.5rem;
  }
  .modal-specs-table-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.3rem;
  }
  .modal-spec-item {
    padding: 0.35rem 0.5rem;
    font-size: 0.76rem;
  }
  .modal-highlight-box {
    padding: 0.5rem 0.65rem;
    font-size: 0.76rem;
  }
  .modal-action-bar {
    grid-template-columns: 1.15fr 1fr;
    gap: 0.45rem;
    padding-top: 0.45rem;
    margin-top: 0.35rem;
  }
  .btn-modal-call {
    height: 62px;
    padding: 0.35rem 0.5rem;
    gap: 0.35rem;
  }
  .btn-modal-call .call-icon {
    font-size: 1.25rem;
  }
  .call-title {
    font-size: 0.82rem;
  }
  .call-tel {
    font-size: 0.75rem;
  }
  .modal-direct-wechat-box {
    height: 62px;
    padding: 0.3rem 0.45rem;
    gap: 0.4rem;
  }
  .wechat-qr-frame {
    width: 50px;
    height: 50px;
  }
  .wechat-badge-title {
    font-size: 0.78rem;
  }
  .wechat-sub-hint {
    font-size: 0.68rem;
  }
  .wechat-num {
    display: none;
  }
  .lightbox-nav-btn {
    width: 38px;
    height: 38px;
    font-size: 1.5rem;
  }
  .lightbox-nav-btn.lightbox-prev { left: 8px; }
  .lightbox-nav-btn.lightbox-next { right: 8px; }
}

@media (max-width: 390px) {
  .modal-gallery-wrap {
    height: 175px;
    padding: 0.25rem;
  }
  .modal-specs-table-grid {
    grid-template-columns: 1fr;
    gap: 0.25rem;
  }
  .modal-action-bar {
    grid-template-columns: 1fr;
    gap: 0.35rem;
  }
  .btn-modal-call {
    height: 48px;
    justify-content: center;
  }
  .modal-direct-wechat-box {
    height: 54px;
    justify-content: center;
  }
}


/* Hero Banner Carousel (首屏三大主力机型高清轮播滚动 - 左文右图/高清整机全景展示，杜绝过度放大裁剪) */
.hero-slider-section {
  position: relative;
  width: 100%;
  height: 520px;
  background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 50%, #e2e8f0 100%);
  border-bottom: 1px solid #e2e8f0;
  overflow: hidden;
  user-select: none;
}

@media (max-width: 991px) {
  .hero-slider-section {
    height: 400px;
    min-height: 400px;
  }
}

@media (max-width: 576px) {
  .hero-slider-section {
    height: 345px;
    min-height: 345px;
  }
}

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

.hero-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.5s ease-in-out, visibility 0.5s;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-slide.active {
  opacity: 1;
  visibility: visible;
  z-index: 2;
}

/* Background Atmosphere Blur (环境氛围光晕，提取原图色彩自然扩散，绝不裁剪主体) */
.slide-bg-blur {
  position: absolute;
  top: -15%;
  left: -15%;
  width: 130%;
  height: 130%;
  background-size: cover;
  background-position: center center;
  filter: blur(40px) brightness(1.08) saturate(1.2);
  transform: scale(1.05);
  opacity: 0.22;
  pointer-events: none;
}

.slide-bg-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 65% 50%, rgba(255, 255, 255, 0.4) 0%, rgba(248, 250, 252, 0.88) 75%);
  pointer-events: none;
}

/* Grid Container */
.hero-slide-container {
  position: relative;
  z-index: 5;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
}

.hero-slide-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  align-items: center;
  gap: 2.5rem;
  width: 100%;
  padding: 1rem 0;
}

@media (max-width: 991px) {
  .hero-slide-grid {
    grid-template-columns: 1fr;
    gap: 0.65rem;
    padding: 1rem 0 2rem;
    text-align: center;
  }
}

@media (max-width: 576px) {
  .hero-slide-grid {
    padding: 0.65rem 0 1.5rem;
    gap: 0.5rem;
  }
}

/* Content Left */
.slide-content {
  color: #0f172a;
}

@media (max-width: 991px) {
  .slide-badge-row {
    justify-content: center;
  }
  .slide-cta-row {
    justify-content: center;
  }
}

.slide-badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.85rem;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background-color: rgba(255, 255, 255, 0.92);
  color: #334155;
  border: 1px solid #cbd5e1;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 700;
  backdrop-filter: blur(4px);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

.hero-tag.tag-accent {
  background-color: #fff7ed;
  color: #ea580c;
  border-color: #fed7aa;
}

.slide-title {
  font-size: 2.3rem;
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 0.85rem;
  letter-spacing: -0.5px;
  color: #0f172a;
  text-shadow: none;
}

.slide-desc {
  font-size: 0.95rem;
  color: #475569;
  margin-bottom: 1.25rem;
  line-height: 1.6;
}

@media (max-width: 991px) {
  .slide-title {
    font-size: 1.35rem;
    margin-bottom: 0.35rem;
  }
  .slide-desc {
    font-size: 0.82rem;
    margin-bottom: 0.55rem;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
}

@media (max-width: 576px) {
  .slide-title {
    font-size: 1.15rem;
    margin-bottom: 0.25rem;
  }
  .slide-desc {
    display: none; /* 小屏手机隐藏长句，保持整机大图首屏完全展示 */
  }
}

.slide-cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
}

/* Visual Right: 完整显示整机实拍原图，杜绝局部裁剪与过度放大 */
.slide-visual-box {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
}


.slide-ambient-blur {
  display: none;
}

.slide-mobile-tag {
  display: none;
}

.slide-photo-frame {
  position: relative;
  width: 100%;
  max-width: 540px;
  height: 380px;
  background: radial-gradient(circle at center, #ffffff 0%, #f8fafc 100%);
  border: 1px solid #e2e8f0;
  border-radius: var(--radius-lg);
  box-shadow: 0 16px 36px rgba(15, 23, 42, 0.08), inset 0 0 0 1px rgba(255, 255, 255, 0.8);
  padding: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  backdrop-filter: blur(8px);
  transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
}

.hero-slide:hover .slide-photo-frame {
  transform: translateY(-4px);
  box-shadow: 0 20px 45px rgba(15, 23, 42, 0.12);
  border-color: #cbd5e1;
}

.slide-full-photo {
  width: 100%;
  height: 100%;
  max-width: 100%;
  max-height: 100%;
  object-fit: contain; /* 核心：100% 完整显示整机，绝无裁切！ */
  object-position: center center;
  filter: drop-shadow(0 8px 18px rgba(15, 23, 42, 0.1));
  transition: transform 0.35s ease;
}

.hero-slide:hover .slide-full-photo {
  transform: scale(1.02);
}

.slide-photo-tag {
  position: absolute;
  bottom: 10px;
  right: 12px;
  background: rgba(255, 255, 255, 0.94);
  border: 1px solid #e2e8f0;
  color: #ea580c;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-full);
  backdrop-filter: blur(4px);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.06);
  pointer-events: none;
}

@media (max-width: 991px) {
  .slide-photo-frame {
    height: 185px;
    max-width: 350px;
    margin: 0 auto;
    padding: 0.35rem;
  }
  .btn-slide-call {
    display: none; /* 移动端底部已固定强力吸底拨号栏，精简轮播按钮释放空间 */
  }
  .btn-slide-detail {
    padding: 0.45rem 1.25rem;
    font-size: 0.82rem;
  }
}

@media (max-width: 576px) {
  .slide-photo-frame {
    height: 160px;
    max-width: 295px;
    padding: 0.25rem;
  }
}

.btn-slide-detail {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  background: linear-gradient(135deg, var(--accent-orange), var(--accent-amber));
  color: #fff;
  font-weight: 800;
  font-size: 0.95rem;
  padding: 0.7rem 1.35rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-cta);
  text-decoration: none;
  transition: transform 0.2s, box-shadow 0.2s;
}

.btn-slide-detail:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(249, 115, 22, 0.4);
}

.btn-slide-call {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background-color: #ffffff;
  color: #0f172a;
  border: 1px solid #cbd5e1;
  font-weight: 700;
  font-size: 0.9rem;
  padding: 0.7rem 1.15rem;
  border-radius: var(--radius-md);
  text-decoration: none;
  backdrop-filter: blur(4px);
  transition: all 0.2s;
}

.btn-slide-call:hover {
  background-color: #f8fafc;
  border-color: var(--accent-orange);
  color: var(--accent-orange);
}

@media (max-width: 576px) {
  .btn-slide-detail {
    padding: 0.38rem 0.95rem;
    font-size: 0.78rem;
    width: auto;
  }
}

/* 轮播翻页按钮 */
.hero-slider-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  background-color: rgba(255, 255, 255, 0.92);
  color: #334155;
  border: 1px solid #e2e8f0;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.85rem;
  font-weight: 700;
  cursor: pointer;
  z-index: 10;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  backdrop-filter: blur(4px);
  transition: all 0.2s;
}

.hero-slider-nav:hover {
  background-color: var(--accent-orange);
  border-color: var(--accent-orange);
  color: #ffffff;
}

.hero-slider-nav.prev-btn { left: 20px; }
.hero-slider-nav.next-btn { right: 20px; }

@media (max-width: 768px) {
  .hero-slider-nav {
    display: none;
  }
}

/* 轮播指示点 */
.hero-slider-dots {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  z-index: 10;
}

.slider-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.4);
  border: none;
  cursor: pointer;
  transition: all 0.25s;
  padding: 0;
}

.slider-dot.active {
  background-color: var(--accent-amber);
  width: 28px;
  border-radius: 5px;
}

/* ===================================================
   Mobile Drawer & Backdrop System (现代化极简轻色调设计 · 清爽整洁通透)
   =================================================== */
.mobile-drawer-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(15, 23, 42, 0.45);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 2400;
  display: none;
  opacity: 0;
  transition: opacity 0.25s ease;
}

.mobile-drawer-backdrop.active {
  display: block;
  opacity: 1;
}

.mobile-drawer {
  position: fixed;
  top: 58px;
  left: 0;
  right: 0;
  width: 100%;
  max-height: calc(100vh - 58px);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  background: #ffffff;
  border-bottom: 3px solid var(--accent-orange);
  box-shadow: 0 16px 40px rgba(15, 23, 42, 0.14);
  z-index: 2500;
  display: none;
  padding: 1.1rem 1rem 2rem;
  transform: translateY(-8px);
  opacity: 0;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

@media (min-width: 769px) {
  .mobile-drawer {
    top: 70px;
    max-height: calc(100vh - 70px);
  }
}

@media (min-width: 992px) {
  .mobile-drawer,
  .mobile-drawer-backdrop {
    display: none !important;
  }
}

.mobile-drawer.active {
  display: block;
  transform: translateY(0);
  opacity: 1;
}

.mobile-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.85rem;
  padding-bottom: 0.65rem;
  border-bottom: 1px solid #f1f5f9;
}

.mobile-drawer-header .drawer-title-box {
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.mobile-drawer-header .drawer-icon {
  font-size: 1.15rem;
}

.mobile-drawer-header h3 {
  font-size: 0.95rem;
  font-weight: 800;
  color: #0f172a;
  margin: 0;
}

.mobile-drawer-close {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: var(--radius-sm);
  color: #64748b;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  line-height: 1;
  cursor: pointer;
  transition: all 0.2s;
}

.mobile-drawer-close:hover {
  background-color: var(--accent-orange);
  color: #ffffff;
  border-color: var(--accent-orange);
}

.mobile-drawer-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.65rem;
  margin-bottom: 1rem;
}

@media (max-width: 480px) {
  .mobile-drawer-grid {
    grid-template-columns: 1fr;
    gap: 0.55rem;
  }
}

.drawer-category-card {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background-color: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: var(--radius-md);
  padding: 0.75rem 0.9rem;
  text-decoration: none;
  transition: all 0.2s ease;
}

.drawer-category-card:hover,
.drawer-category-card.active {
  background-color: #ffffff;
  border-color: var(--accent-orange);
  box-shadow: 0 4px 14px rgba(234, 88, 12, 0.12);
  transform: translateX(2px);
}

/* 首页专属轻色调高亮置顶大卡片 */
.drawer-category-card.drawer-card-home {
  grid-column: 1 / -1;
  background: linear-gradient(135deg, #fffbeb 0%, #fef3c7 100%);
  border: 1.5px solid #fcd34d;
  box-shadow: 0 3px 10px rgba(245, 158, 11, 0.12);
}

.drawer-category-card.drawer-card-home.active {
  background: linear-gradient(135deg, #fff7ed 0%, #fed7aa 100%);
  border-color: var(--accent-orange);
}

.drawer-cat-icon {
  font-size: 1.45rem;
  flex-shrink: 0;
}

.drawer-cat-info {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-width: 0;
}

.drawer-cat-info strong {
  font-size: 0.9rem;
  color: #0f172a;
  font-weight: 700;
  line-height: 1.3;
}

.drawer-category-card.drawer-card-home .drawer-cat-info strong {
  color: #9a3412;
}

.drawer-cat-info span {
  font-size: 0.75rem;
  color: #64748b;
  margin-top: 0.15rem;
  line-height: 1.25;
}

.drawer-category-card.drawer-card-home .drawer-cat-info span {
  color: #b45309;
}

.drawer-cat-arrow {
  color: var(--accent-orange);
  font-size: 1.15rem;
  font-weight: 700;
  flex-shrink: 0;
}

.mobile-drawer-footer {
  display: flex;
  gap: 0.5rem;
  padding-top: 0.85rem;
  border-top: 1px solid #f1f5f9;
}

.mobile-drawer-footer .drawer-call-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  height: 42px;
  background: linear-gradient(135deg, var(--accent-orange), var(--accent-amber));
  color: #fff;
  border-radius: var(--radius-md);
  font-size: 0.84rem;
  font-weight: 700;
  text-decoration: none;
  box-shadow: 0 4px 12px rgba(234, 88, 12, 0.25);
}

.mobile-drawer-footer .drawer-wechat-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  height: 42px;
  background-color: #f8fafc;
  color: #1e293b;
  border: 1px solid #cbd5e1;
  border-radius: var(--radius-md);
  font-size: 0.84rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s;
}

.mobile-drawer-footer .drawer-wechat-btn:hover {
  background-color: #f1f5f9;
  border-color: #94a3b8;
}

/* 移动端分类横向药丸导航适配 */
@media (max-width: 768px) {
  .category-quick-nav {
    justify-content: flex-start;
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding: 0.35rem 0.5rem 0.75rem;
    margin: 0 -0.5rem 1.25rem;
    gap: 0.5rem;
    scrollbar-width: none;
  }
  .category-quick-nav::-webkit-scrollbar {
    display: none;
  }
  .cat-nav-pill {
    flex-shrink: 0;
    padding: 0.45rem 0.85rem;
    font-size: 0.82rem;
    white-space: nowrap;
  }
}

/* ===================================================
   Homepage Category Showcase Layout (参考杰程等工业标杆站：大分类导流看板 + 分类主力机型矩阵)
   =================================================== */
.category-showcase-section {
  padding: 1.25rem 0 3.5rem;
  background-color: var(--surface-bg);
}

.section-kicker {
  display: block;
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 1.5px;
  color: var(--accent-orange);
  margin-bottom: 0.35rem;
  text-transform: uppercase;
}


/* Category Quick Anchor Nav Bar (轻卡片矩阵与移动端并排设计) */
.category-quick-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.85rem;
  margin: 0.5rem 0 2rem;
  flex-wrap: wrap;
}

.cat-nav-card {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.65rem 1.15rem;
  background-color: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  text-decoration: none;
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.04);
  transition: all 0.25s ease;
}

.cat-nav-card:hover,
.cat-nav-card.active {
  border-color: var(--accent-orange);
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(234, 88, 12, 0.16);
}

.cat-nav-card .cat-card-icon {
  font-size: 1.45rem;
  line-height: 1;
}

.cat-nav-card .cat-card-body {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.15rem;
}

.cat-nav-card .cat-card-name {
  font-size: 0.92rem;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.2;
}

.cat-nav-card .cat-card-badge {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--accent-orange);
  background: #fff7ed;
  border-radius: 4px;
  padding: 0.1rem 0.35rem;
  line-height: 1.2;
}

/* Category Quick Anchor Nav Bar */
.category-quick-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  margin: 0.25rem 0 1.25rem;
  flex-wrap: wrap;
}

.cat-nav-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.6rem 1.15rem;
  background-color: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-main);
  text-decoration: none;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.03);
  transition: all 0.25s ease;
}

.cat-nav-pill:hover,
.cat-nav-pill.active {
  background-color: var(--accent-orange);
  border-color: var(--accent-orange);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(249, 115, 22, 0.25);
}

.cat-nav-pill .icon {
  font-size: 1.1rem;
}

/* Category Block */
.category-block {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 1.5rem;
  align-items: start; /* 核心：严禁两栏拉伸撑大产生空白！左侧卡片与右侧单排卡片等高 */
  margin-bottom: 3.5rem;
  background-color: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  box-shadow: 0 4px 20px rgba(15, 23, 42, 0.04);
  position: relative; /* 允许内部 sticky 在本分类内平滑滚动跟随 */
}

@media (max-width: 991px) {
  .category-block {
    grid-template-columns: 1fr;
    gap: 1.15rem;
    padding: 1rem;
    margin-bottom: 2.2rem;
  }
}

@media (max-width: 768px) {
  .category-block {
    background: transparent;
    border: none;
    box-shadow: none;
    padding: 0;
    margin-bottom: 1.6rem;
    gap: 0.75rem;
  }
}

/* Category Master Panel (Left side banner card) */
.category-banner-panel {
  border-radius: var(--radius-md);
  padding: 1.75rem 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: flex-start; /* 紧凑排布，杜绝内部 space-between 产生留白 */
  color: #0f172a;
  position: sticky; /* 核心：滑屏时左侧卡片跟随视口智能漂浮！ */
  top: 85px; /* 紧贴顶部导航 70px 下方 + 15px 呼吸间距 */
  z-index: 10;
  height: fit-content; /* 高度与右侧单排卡片等高，彻底消除留白 */
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(15, 23, 42, 0.05);
  transition: top 0.2s ease;
}

.panel-crane {
  background: linear-gradient(145deg, #f0fdf4 0%, #dcfce7 65%, #bbf7d0 100%);
  border: 1px solid #86efac;
}

.panel-spider {
  background: linear-gradient(145deg, #eff6ff 0%, #dbeafe 65%, #bfdbfe 100%);
  border: 1px solid #93c5fd;
}

.panel-glass {
  background: linear-gradient(145deg, #f5f3ff 0%, #ede9fe 65%, #ddd6fe 100%);
  border: 1px solid #c4b5fd;
}

.panel-aerial {
  background: linear-gradient(145deg, #fffbeb 0%, #fef3c7 65%, #fde68a 100%);
  border: 1px solid #fcd34d;
}

.panel-content {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.panel-header-info {
  display: flex;
  flex-direction: column;
}

.panel-badge {
  display: inline-block;
  align-self: flex-start;
  background-color: #ffffff;
  border: 1px solid rgba(0, 0, 0, 0.08);
  font-size: 0.75rem;
  font-weight: 800;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
  margin-bottom: 1rem;
  letter-spacing: 0.5px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

.panel-crane .panel-badge { color: #15803d; border-color: #86efac; }
.panel-spider .panel-badge { color: #1d4ed8; border-color: #93c5fd; }
.panel-glass .panel-badge { color: #6d28d9; border-color: #c4b5fd; }
.panel-aerial .panel-badge { color: #b45309; border-color: #fcd34d; }

.panel-title {
  font-size: 1.55rem;
  font-weight: 800;
  margin-bottom: 0.65rem;
  line-height: 1.25;
}

.panel-crane .panel-title { color: #064e3b; }
.panel-spider .panel-title { color: #1e3a8a; }
.panel-glass .panel-title { color: #4c1d95; }
.panel-aerial .panel-title { color: #78350f; }

.panel-slogan {
  font-size: 0.88rem;
  line-height: 1.55;
  margin-bottom: 1.5rem;
}

.panel-crane .panel-slogan { color: #166534; }
.panel-spider .panel-slogan { color: #1e40af; }
.panel-glass .panel-slogan { color: #5b21b6; }
.panel-aerial .panel-slogan { color: #92400e; }

.panel-feature-list {
  list-style: none;
  padding: 0;
  margin: 0 0 1.5rem 0;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.panel-feature-list li {
  font-size: 0.82rem;
  display: flex;
  align-items: flex-start;
  gap: 0.45rem;
  line-height: 1.45;
}

.panel-crane .panel-feature-list li { color: #14532d; }
.panel-spider .panel-feature-list li { color: #1e3a8a; }
.panel-glass .panel-feature-list li { color: #4c1d95; }
.panel-aerial .panel-feature-list li { color: #78350f; }

.panel-feature-list li span {
  font-weight: 800;
}

.panel-crane .panel-feature-list li span { color: #16a34a; }
.panel-spider .panel-feature-list li span { color: #2563eb; }
.panel-glass .panel-feature-list li span { color: #7c3aed; }
.panel-aerial .panel-feature-list li span { color: #d97706; }

.btn-panel-more {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  background-color: var(--accent-orange);
  color: #ffffff;
  font-size: 0.88rem;
  font-weight: 700;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: all 0.25s ease;
  margin-top: 0;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.btn-panel-more:hover {
  background-color: var(--accent-orange-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.3);
}

/* Category Products Grid (Right side cards) */
.category-products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.25rem;
}

@media (max-width: 768px) {
  /* 移动端首屏轮播：仅突出产品图 + 氛围背景，无多余文案干扰 */
  .hero-slider-section {
    height: 220px !important;
    min-height: 220px !important;
  }
  .hero-slide-container {
    padding: 0 0.5rem !important;
    height: 100% !important;
  }
  .hero-slide-grid {
    display: block !important;
    padding: 0 !important;
    width: 100% !important;
    height: 100% !important;
  }
  .slide-content {
    display: none !important; /* 核心：移动端首屏轮播图只要产品图片信息不要别的 */
  }
  .slide-visual-box {
    width: 100% !important;
    height: 100% !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    position: relative !important;
  }
  .slide-photo-frame {
    position: relative !important;
    width: 100% !important;
    height: 100% !important;
    max-width: 100% !important;
    border-radius: var(--radius-md) !important;
    overflow: hidden !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    background: radial-gradient(circle at center, #ffffff 0%, #f8fafc 100%) !important;
    border: 1px solid #e2e8f0 !important;
    padding: 0.35rem 0.5rem !important;
    margin: 0 !important;
    box-shadow: 0 4px 16px rgba(15, 23, 42, 0.06) !important;
  }
  .slide-ambient-blur {
    display: block !important;
    position: absolute !important;
    inset: -15px !important;
    background-size: cover !important;
    background-position: center center !important;
    filter: blur(28px) brightness(1.08) saturate(1.2) !important;
    transform: scale(1.15) !important;
    opacity: 0.25 !important;
    pointer-events: none !important;
  }
  .slide-full-photo {
    position: relative !important;
    z-index: 2 !important;
    max-width: 95% !important;
    max-height: 92% !important;
    object-fit: contain !important;
    filter: drop-shadow(0 6px 14px rgba(15, 23, 42, 0.1)) !important;
  }
  .slide-mobile-tag {
    display: inline-flex !important;
    align-items: center !important;
    gap: 0.35rem !important;
    position: absolute !important;
    bottom: 10px !important;
    left: 12px !important;
    z-index: 3 !important;
    background: rgba(255, 255, 255, 0.94) !important;
    backdrop-filter: blur(6px) !important;
    -webkit-backdrop-filter: blur(6px) !important;
    color: #ea580c !important;
    border: 1px solid #fed7aa !important;
    border-radius: var(--radius-full) !important;
    padding: 0.24rem 0.65rem !important;
    font-size: 0.74rem !important;
    font-weight: 700 !important;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05) !important;
    pointer-events: none !important;
  }
  .hero-slider-dots {
    bottom: 10px !important;
    right: 12px !important;
    left: auto !important;
    transform: none !important;
    gap: 5px !important;
    z-index: 5 !important;
  }

  /* 移动端第二屏 4 大核心品类并排轻卡片 (高颜值轻量矩阵) */
  .category-quick-nav {
    display: grid !important;
    grid-template-columns: repeat(4, 1fr) !important;
    gap: 0.45rem !important;
    padding: 0.25rem 0 !important;
    margin: 0.25rem 0 1.25rem !important;
    overflow-x: visible !important;
  }
  .cat-nav-card {
    flex-direction: column !important;
    align-items: center !important;
    justify-content: center !important;
    text-align: center !important;
    padding: 0.55rem 0.25rem !important;
    border-radius: var(--radius-md) !important;
    gap: 0.25rem !important;
    box-shadow: 0 2px 6px rgba(15, 23, 42, 0.04) !important;
  }
  .cat-nav-card .cat-card-icon {
    font-size: 1.35rem !important;
    margin-bottom: 0.15rem !important;
  }
  .cat-nav-card .cat-card-body {
    align-items: center !important;
    gap: 0.15rem !important;
  }
  .cat-nav-card .cat-card-name {
    font-size: 0.76rem !important;
    font-weight: 800 !important;
    white-space: nowrap !important;
  }
  .cat-nav-card .cat-card-badge {
    font-size: 0.64rem !important;
    padding: 0.08rem 0.25rem !important;
    white-space: nowrap !important;
  }

  /* 移动端分类卡片静止流式排布 */
  .category-banner-panel {
    position: static !important;
    top: auto !important;
    height: auto !important;
  }

  .category-banner-panel {
    padding: 0.85rem 1.1rem;
    border-radius: var(--radius-md);
    margin-bottom: 0.25rem;
  }
  .category-banner-panel .panel-content {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.5rem;
    width: 100%;
    height: auto;
  }
  .category-banner-panel .panel-header-info {
    flex: 1;
    min-width: 180px;
  }
  .category-banner-panel .panel-badge {
    margin-bottom: 0.2rem;
    font-size: 0.7rem;
    padding: 0.15rem 0.45rem;
  }
  .category-banner-panel .panel-title {
    font-size: 1.1rem;
    margin-bottom: 0;
    font-weight: 800;
  }
  .category-banner-panel .panel-slogan,
  .category-banner-panel .panel-feature-list {
    display: none; /* 移动端精简冗长文案，消除大量上下留白与层级混乱 */
  }
  .category-banner-panel .btn-panel-more {
    margin-top: 0;
    padding: 0.38rem 0.85rem;
    font-size: 0.78rem;
    border-radius: var(--radius-sm);
    white-space: nowrap;
    align-self: center;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
  }
  .category-products-grid {
    grid-template-columns: 1fr;
    gap: 0.85rem;
  }
  .product-card {
    border-radius: var(--radius-md);
    border: 1px solid #e2e8f0;
    box-shadow: 0 2px 8px rgba(15, 23, 42, 0.05);
  }
}

/* ===================================================
   Mobile Layout & Whitespace Streamlining (无线端全局间距紧凑与清爽排版)
   =================================================== */
@media (max-width: 768px) {
  .section {
    padding: 2.2rem 0; /* 消除原本 4.5rem (72px) 的巨大上下空隙 */
  }
  .section-header {
    margin: 0 auto 1.35rem; /* 消除原本 3rem (48px) 的巨大下边距 */
  }
  .section-header h1,
  .section-header h2 {
    font-size: 1.35rem;
    margin-bottom: 0.35rem;
  }
  .section-header p {
    font-size: 0.82rem;
    line-height: 1.5;
  }
  .category-showcase-section {
    padding: 0.5rem 0 2rem;
  }
  .features-grid {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }
  .feature-box {
    padding: 1rem 0.9rem;
    border-radius: var(--radius-md);
  }
  .feature-box h4 {
    font-size: 0.98rem;
    margin-bottom: 0.35rem;
  }
  .feature-box p {
    font-size: 0.82rem;
    line-height: 1.5;
  }
  .case-grid {
    grid-template-columns: 1fr;
    gap: 0.85rem;
  }
  .case-img-wrap {
    height: 180px;
  }
  .case-content {
    padding: 0.95rem 1rem 1.1rem;
  }
  .case-content h4 {
    font-size: 1rem;
    margin-bottom: 0.4rem;
  }
  .case-row {
    font-size: 0.8rem;
    margin-bottom: 0.35rem;
    line-height: 1.45;
  }
  .site-footer {
    padding: 2.5rem 0 calc(70px + 1.5rem);
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
}