/* ===========================================
   晟科机电 - 全站主样式
   Style: 简约大气 · 专业消防维保
   =========================================== */

/* CSS 变量 */
:root {
  /* 主色调 - 火焰红与深蓝灰，体现消防专业感 */
  --primary: #C8102E;
  --primary-dark: #9B0E23;
  --primary-light: #E63E58;

  /* 次主色 - 深邃蓝灰，体现专业可靠 */
  --secondary: #1B2A4A;
  --secondary-light: #2C3E5A;
  --secondary-dark: #0F1B30;

  /* 强调色 - 金色，用于关键CTA */
  --accent: #D89A2C;
  --accent-light: #E8B045;

  /* 中性色 */
  --text: #1F2937;
  --text-light: #6B7280;
  --text-lighter: #9CA3AF;

  /* 背景色 */
  --bg: #FFFFFF;
  --bg-light: #F8F9FB;
  --bg-gray: #F1F3F6;
  --bg-dark: #1B2A4A;

  /* 边框色 */
  --border: #E5E7EB;
  --border-light: #F3F4F6;

  /* 阴影 */
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
  --shadow: 0 4px 12px rgba(0,0,0,0.06);
  --shadow-md: 0 8px 24px rgba(0,0,0,0.08);
  --shadow-lg: 0 16px 48px rgba(0,0,0,0.12);

  /* 字号 */
  --fs-xs: 12px;
  --fs-sm: 14px;
  --fs-base: 16px;
  --fs-md: 18px;
  --fs-lg: 20px;
  --fs-xl: 24px;
  --fs-2xl: 32px;
  --fs-3xl: 40px;
  --fs-4xl: 56px;
  --fs-5xl: 72px;

  /* 间距 */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;
  --space-20: 80px;
  --space-24: 96px;

  /* 容器宽度 */
  --container-max: 1240px;
  --container-padding: 24px;

  /* 圆角 */
  --radius-sm: 4px;
  --radius: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  /* 过渡 */
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 重置 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: var(--fs-base);
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  font-weight: 400;
  overflow-x: hidden;
}

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

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

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

ul, ol {
  list-style: none;
}

button {
  border: none;
  background: none;
  cursor: pointer;
  font-family: inherit;
  font-size: inherit;
}

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}

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

/* ====================
   导航栏
   ==================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: all var(--transition);
}

.site-header.scrolled {
  border-bottom-color: var(--border);
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
}

.brand-logo {
  height: 44px;
  width: auto;
}

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

.brand-name {
  font-size: var(--fs-lg);
  font-weight: 700;
  color: var(--secondary);
  line-height: 1.2;
  letter-spacing: 0.5px;
}

.brand-tag {
  font-size: var(--fs-xs);
  color: var(--text-light);
  letter-spacing: 1px;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.nav-link {
  font-size: var(--fs-base);
  color: var(--text);
  font-weight: 500;
  position: relative;
  padding: var(--space-2) 0;
  transition: color var(--transition);
}

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

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--primary);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 10px 20px;
  background: var(--primary);
  color: white;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: var(--fs-sm);
  transition: all var(--transition);
}

.nav-cta:hover {
  background: var(--primary-dark);
  color: white;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.mobile-toggle {
  display: none;
  width: 40px;
  height: 40px;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
}

.mobile-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--secondary);
  border-radius: 2px;
  transition: all var(--transition);
}

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

.mobile-toggle.active span:nth-child(2) {
  opacity: 0;
}

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

/* ====================
   Hero 区
   ==================== */
.hero {
  position: relative;
  min-height: 720px;
  padding: 160px 0 100px;
  background: linear-gradient(135deg, #1B2A4A 0%, #2C3E5A 50%, #1B2A4A 100%);
  color: white;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(200, 16, 46, 0.15) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(216, 154, 44, 0.1) 0%, transparent 50%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--space-16);
  align-items: center;
}

.hero-content {
  max-width: 640px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 8px 16px;
  background: rgba(200, 16, 46, 0.15);
  border: 1px solid rgba(200, 16, 46, 0.3);
  border-radius: 100px;
  font-size: var(--fs-sm);
  font-weight: 500;
  margin-bottom: var(--space-6);
  color: #FFC9D4;
}

.hero-badge::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--primary-light);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(1.2); }
}

.hero-title {
  font-size: var(--fs-5xl);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -1px;
  margin-bottom: var(--space-5);
}

.hero-title .accent {
  color: var(--accent-light);
  position: relative;
}

.hero-subtitle {
  font-size: var(--fs-lg);
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: var(--space-8);
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 14px 28px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: var(--fs-base);
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  border: 2px solid transparent;
}

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

.btn-primary:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(200, 16, 46, 0.4);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.1);
  color: white;
  border-color: rgba(255, 255, 255, 0.3);
  backdrop-filter: blur(8px);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.5);
  color: white;
  transform: translateY(-2px);
}

.btn-light {
  background: white;
  color: var(--secondary);
}

.btn-light:hover {
  background: var(--bg-light);
  color: var(--secondary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
}

.btn-outline:hover {
  background: var(--primary);
  color: white;
  transform: translateY(-2px);
}

.btn-lg {
  padding: 18px 36px;
  font-size: var(--fs-md);
}

/* Hero 视觉卡片 */
.hero-visual {
  position: relative;
  height: 480px;
}

.hero-card {
  position: absolute;
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: transform var(--transition-slow);
}

.hero-card-1 {
  top: 0;
  left: 0;
  width: 70%;
  animation: float 6s ease-in-out infinite;
}

.hero-card-2 {
  top: 30%;
  right: 0;
  width: 60%;
  animation: float 6s ease-in-out infinite 2s;
}

.hero-card-3 {
  bottom: 0;
  left: 20%;
  width: 75%;
  animation: float 6s ease-in-out infinite 4s;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

.hero-card-label {
  font-size: var(--fs-xs);
  color: rgba(255, 255, 255, 0.6);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: var(--space-2);
}

.hero-card-value {
  font-size: var(--fs-3xl);
  font-weight: 800;
  color: var(--accent-light);
  line-height: 1;
}

.hero-card-desc {
  margin-top: var(--space-2);
  font-size: var(--fs-sm);
  color: rgba(255, 255, 255, 0.7);
}

/* 页面Hero（子页面头部） */
.page-hero {
  position: relative;
  padding: 180px 0 100px;
  background: linear-gradient(135deg, var(--secondary) 0%, var(--secondary-light) 100%);
  color: white;
  text-align: center;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at center, rgba(200, 16, 46, 0.18) 0%, transparent 60%);
}

.page-hero-inner {
  position: relative;
  z-index: 1;
}

.page-hero-title {
  font-size: var(--fs-4xl);
  font-weight: 800;
  margin-bottom: var(--space-4);
  letter-spacing: -0.5px;
}

.page-hero-sub {
  font-size: var(--fs-lg);
  color: rgba(255, 255, 255, 0.85);
  max-width: 600px;
  margin: 0 auto;
}

.breadcrumb {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-6);
  font-size: var(--fs-sm);
  color: rgba(255, 255, 255, 0.7);
}

.breadcrumb a {
  color: rgba(255, 255, 255, 0.7);
}

.breadcrumb a:hover {
  color: white;
}

.breadcrumb-sep {
  color: rgba(255, 255, 255, 0.4);
}

/* ====================
   通用Section
   ==================== */
.section {
  padding: var(--space-24) 0;
}

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

.section-dark {
  background: var(--secondary);
  color: white;
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto var(--space-16);
}

.section-eyebrow {
  display: inline-block;
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--primary);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: var(--space-3);
  position: relative;
  padding: 0 var(--space-6);
}

.section-eyebrow::before,
.section-eyebrow::after {
  content: '';
  position: absolute;
  top: 50%;
  width: 20px;
  height: 1px;
  background: var(--primary);
}

.section-eyebrow::before { left: -20px; }
.section-eyebrow::after { right: -20px; }

.section-dark .section-eyebrow {
  color: var(--accent-light);
}

.section-dark .section-eyebrow::before,
.section-dark .section-eyebrow::after {
  background: var(--accent-light);
}

.section-title {
  font-size: var(--fs-3xl);
  font-weight: 800;
  margin-bottom: var(--space-4);
  letter-spacing: -0.5px;
  line-height: 1.25;
}

.section-dark .section-title { color: white; }

.section-subtitle {
  font-size: var(--fs-md);
  color: var(--text-light);
  line-height: 1.7;
}

.section-dark .section-subtitle { color: rgba(255,255,255,0.75); }

/* ====================
   优势卡片
   ==================== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}

.feature-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  border: 1px solid var(--border);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-slow);
}

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

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

.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(200, 16, 46, 0.1), rgba(216, 154, 44, 0.1));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-5);
  color: var(--primary);
  transition: all var(--transition);
}

.feature-card:hover .feature-icon {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  transform: scale(1.05) rotate(-5deg);
}

.feature-icon svg {
  width: 28px;
  height: 28px;
}

.feature-title {
  font-size: var(--fs-lg);
  font-weight: 700;
  margin-bottom: var(--space-3);
  color: var(--secondary);
}

.feature-desc {
  font-size: var(--fs-sm);
  color: var(--text-light);
  line-height: 1.7;
}

/* ====================
   服务卡片
   ==================== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

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

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.service-header {
  position: relative;
  padding: var(--space-8) var(--space-6) var(--space-6);
  background: linear-gradient(135deg, var(--bg-light), white);
  border-bottom: 1px solid var(--border);
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 120px;
  height: 120px;
  background: radial-gradient(circle, rgba(200, 16, 46, 0.05) 0%, transparent 70%);
  border-radius: 50%;
  transform: translate(30%, -30%);
}

.service-icon {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  margin-bottom: var(--space-5);
  box-shadow: 0 8px 20px rgba(200, 16, 46, 0.25);
  position: relative;
  z-index: 1;
}

.service-icon svg {
  width: 30px;
  height: 30px;
}

.service-title {
  font-size: var(--fs-xl);
  font-weight: 700;
  color: var(--secondary);
  margin-bottom: var(--space-2);
  position: relative;
  z-index: 1;
}

.service-subtitle {
  font-size: var(--fs-xs);
  color: var(--text-lighter);
  letter-spacing: 1px;
  text-transform: uppercase;
  position: relative;
  z-index: 1;
}

.service-body {
  padding: var(--space-6);
}

.service-desc {
  font-size: var(--fs-sm);
  color: var(--text-light);
  line-height: 1.7;
  margin-bottom: var(--space-5);
}

.service-scope {
  margin-bottom: var(--space-5);
}

.service-scope-title {
  font-size: var(--fs-xs);
  font-weight: 600;
  color: var(--secondary);
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: var(--space-3);
}

.service-scope-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.service-scope-tag {
  font-size: var(--fs-xs);
  padding: 4px 10px;
  background: var(--bg-gray);
  color: var(--text-light);
  border-radius: var(--radius-sm);
}

.service-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--primary);
  transition: gap var(--transition);
}

.service-link:hover {
  gap: var(--space-3);
  color: var(--primary-dark);
}

/* 服务详情（子页） */
.service-detail {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: var(--space-12);
  align-items: start;
  padding: var(--space-10) 0;
  border-bottom: 1px solid var(--border);
}

.service-detail:last-child {
  border-bottom: none;
}

.service-detail-visual {
  position: relative;
  height: 280px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--secondary), var(--secondary-light));
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  overflow: hidden;
}

.service-detail-visual::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 30% 30%, rgba(200, 16, 46, 0.3) 0%, transparent 60%);
}

.service-detail-visual .service-icon {
  width: 96px;
  height: 96px;
  position: relative;
  z-index: 1;
}

.service-detail-visual .service-icon svg {
  width: 44px;
  height: 44px;
}

.service-detail-content h3 {
  font-size: var(--fs-2xl);
  font-weight: 700;
  color: var(--secondary);
  margin-bottom: var(--space-2);
}

.service-detail-content .service-sub {
  margin-bottom: var(--space-4);
}

.service-detail-content p {
  color: var(--text-light);
  margin-bottom: var(--space-5);
  line-height: 1.8;
}

.service-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
}

.service-features li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  font-size: var(--fs-sm);
  color: var(--text);
}

.service-features li::before {
  content: '';
  width: 16px;
  height: 16px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23C8102E' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'%3E%3C/polyline%3E%3C/svg%3E");
  background-size: contain;
  background-repeat: no-repeat;
  flex-shrink: 0;
  margin-top: 4px;
}

/* ====================
   关于我们
   ==================== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
}

.about-content h3 {
  font-size: var(--fs-2xl);
  font-weight: 700;
  color: var(--secondary);
  margin-bottom: var(--space-5);
}

.about-content p {
  color: var(--text-light);
  margin-bottom: var(--space-4);
  line-height: 1.8;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
  margin-top: var(--space-8);
  padding-top: var(--space-8);
  border-top: 1px solid var(--border);
}

.stat-item {
  text-align: center;
}

.stat-value {
  font-size: var(--fs-3xl);
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
  margin-bottom: var(--space-2);
}

.stat-label {
  font-size: var(--fs-xs);
  color: var(--text-light);
  letter-spacing: 1px;
}

.about-visual {
  position: relative;
  height: 520px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--secondary), var(--secondary-light));
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
}

.about-visual::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 30% 30%, rgba(200, 16, 46, 0.25) 0%, transparent 50%),
    radial-gradient(circle at 70% 70%, rgba(216, 154, 44, 0.15) 0%, transparent 50%);
}

.about-visual-inner {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: var(--space-8);
}

.about-visual-logo {
  width: 140px;
  height: auto;
  margin: 0 auto var(--space-6);
  filter: brightness(0) invert(1);
}

.about-visual-title {
  font-size: var(--fs-2xl);
  font-weight: 700;
  margin-bottom: var(--space-3);
}

.about-visual-text {
  font-size: var(--fs-sm);
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.7;
}

/* 文化卡片 */
.culture-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
  margin-top: var(--space-12);
}

.culture-card {
  padding: var(--space-8);
  background: white;
  border-radius: var(--radius-lg);
  border-left: 4px solid var(--primary);
  box-shadow: var(--shadow);
}

.culture-card h4 {
  font-size: var(--fs-lg);
  color: var(--primary);
  margin-bottom: var(--space-3);
  font-weight: 700;
}

.culture-card p {
  color: var(--text);
  font-size: var(--fs-md);
  line-height: 1.7;
  font-weight: 500;
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
  margin-top: var(--space-12);
}

.value-card {
  text-align: center;
  padding: var(--space-8) var(--space-5);
  background: var(--bg-light);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  transition: all var(--transition);
}

.value-card:hover {
  background: white;
  border-color: var(--primary);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.value-card h4 {
  font-size: var(--fs-2xl);
  color: var(--primary);
  margin-bottom: var(--space-3);
  font-weight: 800;
  letter-spacing: 4px;
}

.value-card p {
  color: var(--text-light);
  font-size: var(--fs-sm);
}

/* 资质 */
.qual-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}

.qual-card {
  padding: var(--space-8) var(--space-5);
  background: white;
  border-radius: var(--radius-lg);
  text-align: center;
  border: 1px solid var(--border);
  transition: all var(--transition);
}

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

.qual-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--space-5);
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(200, 16, 46, 0.1), rgba(216, 154, 44, 0.1));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
}

.qual-icon svg {
  width: 32px;
  height: 32px;
}

.qual-card h4 {
  font-size: var(--fs-md);
  color: var(--secondary);
  margin-bottom: var(--space-2);
  font-weight: 700;
}

.qual-card p {
  color: var(--text-light);
  font-size: var(--fs-sm);
}

/* 团队 */
.team-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-5);
}

.team-card {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  padding: var(--space-5);
  background: white;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  transition: all var(--transition);
}

.team-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow);
}

.team-avatar {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--fs-xl);
  font-weight: 700;
  flex-shrink: 0;
}

.team-info h4 {
  font-size: var(--fs-md);
  color: var(--secondary);
  font-weight: 700;
  margin-bottom: var(--space-1);
}

.team-info p {
  font-size: var(--fs-xs);
  color: var(--text-light);
  line-height: 1.6;
}

.team-info .cert-no {
  font-family: 'Consolas', 'Monaco', monospace;
  background: var(--bg-gray);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 11px;
  color: var(--secondary);
}

/* 时间轴 */
.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
  padding-left: var(--space-8);
}

.timeline::before {
  content: '';
  position: absolute;
  left: 8px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--primary), var(--accent));
}

.timeline-item {
  position: relative;
  padding-bottom: var(--space-10);
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-dot {
  position: absolute;
  left: -34px;
  top: 4px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: white;
  border: 4px solid var(--primary);
  z-index: 1;
}

.timeline-year {
  font-size: var(--fs-sm);
  font-weight: 700;
  color: var(--primary);
  letter-spacing: 2px;
  margin-bottom: var(--space-2);
}

.timeline-event {
  font-size: var(--fs-md);
  color: var(--text);
  line-height: 1.6;
}

/* ====================
   服务流程
   ==================== */
.process-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: var(--space-4);
  margin-top: var(--space-12);
}

.process-step {
  text-align: center;
  position: relative;
}

.process-step::after {
  content: '';
  position: absolute;
  top: 24px;
  right: -10px;
  width: 20px;
  height: 1px;
  background: linear-gradient(to right, var(--primary), transparent);
}

.process-step:last-child::after {
  display: none;
}

.process-num {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--fs-md);
  font-weight: 700;
  margin: 0 auto var(--space-4);
  box-shadow: 0 6px 16px rgba(200, 16, 46, 0.25);
}

.process-step h4 {
  font-size: var(--fs-base);
  color: var(--secondary);
  margin-bottom: var(--space-2);
  font-weight: 700;
}

.process-step p {
  font-size: var(--fs-xs);
  color: var(--text-light);
  line-height: 1.6;
}

/* 适用场景 */
.scene-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
}

.scene-card {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-5);
  background: white;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  transition: all var(--transition);
}

.scene-card:hover {
  transform: translateX(4px);
  border-color: var(--primary);
  box-shadow: var(--shadow);
}

.scene-icon {
  width: 50px;
  height: 50px;
  border-radius: var(--radius);
  background: var(--bg-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  flex-shrink: 0;
}

.scene-icon svg {
  width: 24px;
  height: 24px;
}

.scene-info h4 {
  font-size: var(--fs-base);
  color: var(--secondary);
  margin-bottom: 4px;
  font-weight: 700;
}

.scene-info p {
  font-size: var(--fs-xs);
  color: var(--text-light);
}

/* ====================
   联系页面
   ==================== */
.contact-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: var(--space-12);
}

.contact-info-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  margin-top: var(--space-8);
}

.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  padding: var(--space-5);
  background: white;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
}

.contact-info-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(200, 16, 46, 0.1), rgba(216, 154, 44, 0.1));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  flex-shrink: 0;
}

.contact-info-icon svg {
  width: 24px;
  height: 24px;
}

.contact-info-text h4 {
  font-size: var(--fs-sm);
  color: var(--text-light);
  margin-bottom: var(--space-1);
  font-weight: 500;
}

.contact-info-text p {
  font-size: var(--fs-lg);
  color: var(--secondary);
  font-weight: 600;
}

.contact-info-text p.large {
  font-size: var(--fs-xl);
  color: var(--primary);
  font-weight: 700;
}

/* 联系表单 */
.contact-form-wrap {
  background: white;
  border-radius: var(--radius-lg);
  padding: var(--space-10);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border);
}

.contact-form-wrap h3 {
  font-size: var(--fs-2xl);
  color: var(--secondary);
  margin-bottom: var(--space-2);
  font-weight: 700;
}

.contact-form-wrap p.sub {
  color: var(--text-light);
  margin-bottom: var(--space-6);
}

.form-group {
  margin-bottom: var(--space-5);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

.form-label {
  display: block;
  font-size: var(--fs-sm);
  color: var(--text);
  font-weight: 500;
  margin-bottom: var(--space-2);
}

.form-label .required {
  color: var(--primary);
  margin-left: 2px;
}

.form-control {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: var(--fs-base);
  color: var(--text);
  background: var(--bg);
  transition: all var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(200, 16, 46, 0.1);
}

textarea.form-control {
  resize: vertical;
  min-height: 120px;
  font-family: inherit;
}

.form-tip {
  font-size: var(--fs-xs);
  color: var(--text-lighter);
  margin-top: var(--space-2);
}

.form-submit {
  width: 100%;
  padding: 14px;
  background: var(--primary);
  color: white;
  border: none;
  border-radius: var(--radius);
  font-size: var(--fs-base);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
}

.form-submit:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(200, 16, 46, 0.3);
}

.form-submit:disabled {
  background: var(--text-lighter);
  cursor: not-allowed;
  transform: none;
}

.form-message {
  margin-top: var(--space-4);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius);
  font-size: var(--fs-sm);
  display: none;
}

.form-message.success {
  display: block;
  background: rgba(34, 197, 94, 0.1);
  color: #16A34A;
  border: 1px solid rgba(34, 197, 94, 0.2);
}

.form-message.error {
  display: block;
  background: rgba(239, 68, 68, 0.1);
  color: #DC2626;
  border: 1px solid rgba(239, 68, 68, 0.2);
}

/* 服务区域 */
.areas-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
  margin-top: var(--space-12);
}

.area-card {
  padding: var(--space-8);
  background: white;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  transition: all var(--transition);
}

.area-card.primary {
  border-color: var(--primary);
  background: linear-gradient(135deg, rgba(200, 16, 46, 0.04), white);
}

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

.area-card-header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-5);
  padding-bottom: var(--space-5);
  border-bottom: 1px solid var(--border);
}

.area-card-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--fs-xl);
  font-weight: 700;
  flex-shrink: 0;
}

.area-card-title h3 {
  font-size: var(--fs-xl);
  color: var(--secondary);
  font-weight: 700;
}

.area-card-title span {
  font-size: var(--fs-xs);
  color: var(--primary);
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.area-districts {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.area-district {
  font-size: var(--fs-xs);
  padding: 4px 10px;
  background: var(--bg-light);
  color: var(--text-light);
  border-radius: var(--radius-sm);
}

/* ====================
   CTA Section
   ==================== */
.cta-section {
  background: linear-gradient(135deg, var(--secondary) 0%, var(--secondary-light) 100%);
  color: white;
  padding: var(--space-20) 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 50%, rgba(200, 16, 46, 0.2) 0%, transparent 40%),
    radial-gradient(circle at 80% 50%, rgba(216, 154, 44, 0.15) 0%, transparent 40%);
}

.cta-inner {
  position: relative;
  z-index: 1;
  max-width: 800px;
  margin: 0 auto;
}

.cta-title {
  font-size: var(--fs-3xl);
  font-weight: 800;
  margin-bottom: var(--space-4);
  letter-spacing: -0.5px;
}

.cta-subtitle {
  font-size: var(--fs-md);
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: var(--space-8);
  line-height: 1.7;
}

.cta-actions {
  display: flex;
  justify-content: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}

/* ====================
   新闻/FAQ
   ==================== */
.news-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-5);
}

.news-card {
  padding: var(--space-6);
  background: white;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  transition: all var(--transition);
  cursor: pointer;
}

.news-card:hover {
  border-color: var(--primary);
  transform: translateX(4px);
  box-shadow: var(--shadow);
}

.news-meta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}

.news-date {
  font-size: var(--fs-xs);
  color: var(--text-light);
}

.news-category {
  font-size: var(--fs-xs);
  padding: 3px 10px;
  background: rgba(200, 16, 46, 0.1);
  color: var(--primary);
  border-radius: 100px;
  font-weight: 600;
}

.news-title {
  font-size: var(--fs-md);
  color: var(--secondary);
  font-weight: 700;
  margin-bottom: var(--space-2);
  line-height: 1.5;
}

.news-summary {
  font-size: var(--fs-sm);
  color: var(--text-light);
  line-height: 1.7;
}

/* FAQ */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--border);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5) 0;
  cursor: pointer;
  font-size: var(--fs-md);
  font-weight: 600;
  color: var(--secondary);
  transition: color var(--transition);
}

.faq-question:hover {
  color: var(--primary);
}

.faq-toggle {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--bg-light);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-left: var(--space-4);
  transition: all var(--transition);
}

.faq-item.active .faq-toggle {
  background: var(--primary);
  color: white;
  transform: rotate(45deg);
}

.faq-toggle::before,
.faq-toggle::after {
  content: '';
  position: absolute;
  background: currentColor;
}

.faq-toggle::before {
  width: 12px;
  height: 2px;
}

.faq-toggle::after {
  width: 2px;
  height: 12px;
}

.faq-toggle {
  position: relative;
  color: var(--text-light);
}

.faq-toggle::before {
  content: '';
  position: absolute;
  width: 12px;
  height: 2px;
  background: currentColor;
  border-radius: 1px;
}

.faq-toggle::after {
  content: '';
  position: absolute;
  width: 2px;
  height: 12px;
  background: currentColor;
  border-radius: 1px;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow), padding var(--transition);
}

.faq-item.active .faq-answer {
  max-height: 600px;
  padding-bottom: var(--space-5);
}

.faq-answer p {
  color: var(--text-light);
  line-height: 1.8;
  font-size: var(--fs-sm);
}

/* ====================
   Footer
   ==================== */
.site-footer {
  background: var(--secondary-dark);
  color: rgba(255, 255, 255, 0.8);
  padding: var(--space-16) 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: var(--space-12);
  padding-bottom: var(--space-12);
}

.footer-brand img {
  width: 120px;
  margin-bottom: var(--space-5);
  filter: brightness(0) invert(1);
}

.footer-brand h4 {
  font-size: var(--fs-md);
  color: white;
  margin-bottom: var(--space-3);
  font-weight: 700;
}

.footer-brand p {
  font-size: var(--fs-sm);
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.7);
}

.footer-col h5 {
  font-size: var(--fs-base);
  color: white;
  margin-bottom: var(--space-5);
  font-weight: 600;
  position: relative;
  padding-bottom: var(--space-3);
}

.footer-col h5::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 30px;
  height: 2px;
  background: var(--primary);
}

.footer-col ul li {
  margin-bottom: var(--space-3);
}

.footer-col ul li a {
  color: rgba(255, 255, 255, 0.7);
  font-size: var(--fs-sm);
  transition: color var(--transition);
}

.footer-col ul li a:hover {
  color: white;
  padding-left: 4px;
}

.footer-contact p {
  font-size: var(--fs-sm);
  margin-bottom: var(--space-3);
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.6;
}

.footer-contact p svg {
  width: 16px;
  height: 16px;
  margin-top: 3px;
  flex-shrink: 0;
  color: var(--accent-light);
}

.footer-contact .phone-large {
  font-size: var(--fs-lg);
  color: var(--accent-light);
  font-weight: 700;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: var(--space-6) 0;
  text-align: center;
  font-size: var(--fs-xs);
  color: rgba(255, 255, 255, 0.5);
}

.footer-bottom a {
  color: rgba(255, 255, 255, 0.5);
}

.footer-bottom a:hover {
  color: white;
}

.footer-cert {
  display: flex;
  gap: var(--space-4);
  margin-top: var(--space-5);
  flex-wrap: wrap;
}

.footer-cert span {
  font-size: var(--fs-xs);
  padding: 4px 10px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 100px;
  color: rgba(255, 255, 255, 0.6);
}

/* ====================
   通用动画
   ==================== */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ====================
   响应式
   ==================== */
@media (max-width: 1024px) {
  :root {
    --fs-5xl: 56px;
    --fs-4xl: 44px;
    --fs-3xl: 32px;
  }

  .features-grid,
  .values-grid,
  .qual-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .services-grid,
  .scene-grid,
  .news-grid,
  .areas-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .process-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-6);
  }

  .process-step:nth-child(4)::after {
    display: none;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
  }

  .hero-inner {
    grid-template-columns: 1fr;
    gap: var(--space-12);
  }

  .hero-visual {
    height: 360px;
  }

  .about-grid,
  .contact-grid,
  .service-detail {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
}

@media (max-width: 768px) {
  :root {
    --fs-5xl: 40px;
    --fs-4xl: 32px;
    --fs-3xl: 28px;
    --fs-2xl: 24px;
    --fs-xl: 20px;
    --fs-lg: 18px;
  }

  .section {
    padding: var(--space-16) 0;
  }

  .hero {
    min-height: 600px;
    padding: 120px 0 60px;
  }

  .page-hero {
    padding: 140px 0 60px;
  }

  .nav-list {
    position: fixed;
    top: 80px;
    left: 0;
    right: 0;
    background: white;
    flex-direction: column;
    align-items: stretch;
    padding: var(--space-5) var(--container-padding);
    gap: 0;
    border-bottom: 1px solid var(--border);
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: all var(--transition);
  }

  .nav-list.active {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-link {
    padding: var(--space-4) 0;
    border-bottom: 1px solid var(--border-light);
  }

  .nav-cta {
    margin-top: var(--space-3);
    justify-content: center;
  }

  .mobile-toggle {
    display: flex;
  }

  .features-grid,
  .services-grid,
  .scene-grid,
  .news-grid,
  .areas-grid,
  .values-grid,
  .qual-grid,
  .team-grid,
  .culture-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .process-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .process-step::after {
    display: none;
  }

  .about-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-6);
  }

  .service-features {
    grid-template-columns: 1fr;
  }

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

  .hero-visual {
    height: 280px;
  }

  .hero-card-1, .hero-card-2, .hero-card-3 {
    padding: var(--space-4);
  }

  .hero-card-value {
    font-size: var(--fs-2xl);
  }

  .contact-form-wrap {
    padding: var(--space-6);
  }

  .footer-grid {
    text-align: center;
  }

  .footer-col h5::after {
    left: 50%;
    transform: translateX(-50%);
  }

  .footer-contact p {
    justify-content: center;
  }
}

@media (max-width: 480px) {
  :root {
    --fs-5xl: 32px;
    --fs-4xl: 28px;
    --container-padding: 16px;
  }

  .hero-actions {
    flex-direction: column;
    width: 100%;
  }

  .hero-actions .btn {
    width: 100%;
    justify-content: center;
  }
}

/* ====================
   FAQ Vue原生切换样式
   （替代 utils.js 的 jQuery 式切换）
   ==================== */
.faq-toggle.open {
  background: var(--primary);
  color: white;
  transform: rotate(45deg);
}

.faq-answer.active {
  max-height: 600px;
  padding-bottom: var(--space-5);
}

/* ====================
   消防知识库 - 首页预览卡片
   ==================== */
.knowledge-preview-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}

.knowledge-preview-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--space-8) var(--space-5);
  background: var(--bg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  transition: all var(--transition);
  text-decoration: none;
  color: inherit;
}

.knowledge-preview-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.knowledge-preview-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(200,16,46,0.08), rgba(200,16,46,0.03));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  margin-bottom: var(--space-4);
}

.knowledge-preview-icon svg {
  width: 28px;
  height: 28px;
}

.knowledge-preview-card h4 {
  font-size: var(--fs-base);
  color: var(--secondary);
  margin-bottom: var(--space-2);
  font-weight: 700;
}

.knowledge-preview-card p {
  font-size: var(--fs-xs);
  color: var(--text-light);
  line-height: 1.6;
  margin-bottom: var(--space-4);
  flex: 1;
}

.knowledge-preview-link {
  font-size: var(--fs-xs);
  color: var(--primary);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 4px;
}

/* ====================
   消防知识库 - 分类卡片
   ==================== */
.knowledge-cat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-5);
}

.knowledge-cat-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--space-7) var(--space-5);
  background: var(--bg);
  border-radius: var(--radius-lg);
  border: 2px solid var(--border-light);
  transition: all var(--transition);
  text-decoration: none;
  color: inherit;
  cursor: pointer;
  position: relative;
}

.knowledge-cat-card:hover,
.knowledge-cat-card.active {
  border-color: var(--primary);
  box-shadow: 0 8px 24px rgba(200,16,46,0.12);
  transform: translateY(-2px);
}

.knowledge-cat-icon {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  margin-bottom: var(--space-4);
  box-shadow: 0 6px 16px rgba(200,16,46,0.25);
}

.knowledge-cat-icon svg {
  width: 28px;
  height: 28px;
}

.knowledge-cat-card h4 {
  font-size: var(--fs-base);
  color: var(--secondary);
  margin-bottom: var(--space-2);
  font-weight: 700;
}

.knowledge-cat-card p {
  font-size: var(--fs-xs);
  color: var(--text-light);
  line-height: 1.6;
  margin-bottom: var(--space-3);
  flex: 1;
}

.knowledge-cat-count {
  font-size: var(--fs-xs);
  color: var(--primary);
  font-weight: 600;
  padding: 2px 12px;
  background: rgba(200,16,46,0.06);
  border-radius: 100px;
}

/* ====================
   消防知识库 - 文章列表
   ==================== */
.knowledge-anchor {
  position: relative;
  top: -80px;
  visibility: hidden;
}

.knowledge-articles {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.knowledge-article {
  background: var(--bg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  overflow: hidden;
  transition: box-shadow var(--transition);
}

.knowledge-article:hover {
  box-shadow: var(--shadow-md);
}

.knowledge-article-header {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-5) var(--space-6);
  cursor: pointer;
  transition: background var(--transition);
}

.knowledge-article-header:hover {
  background: var(--bg-light);
}

.knowledge-article-num {
  font-size: var(--fs-2xl);
  font-weight: 800;
  color: var(--primary);
  opacity: 0.3;
  flex-shrink: 0;
  min-width: 48px;
}

.knowledge-article-header h3 {
  flex: 1;
  font-size: var(--fs-lg);
  color: var(--secondary);
  font-weight: 700;
}

.knowledge-article-toggle {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--bg-light);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--text-light);
  transition: all var(--transition);
}

.knowledge-article-toggle svg {
  width: 20px;
  height: 20px;
}

.knowledge-article-toggle.open {
  background: var(--primary);
  color: white;
  transform: rotate(180deg);
}

.knowledge-article-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
}

.knowledge-article-body.expanded {
  max-height: 3000px;
  padding: 0 var(--space-6) var(--space-6) calc(var(--space-6) + 48px);
}

.knowledge-article-body p {
  color: var(--text-light);
  line-height: 2;
  font-size: var(--fs-sm);
  margin-bottom: var(--space-3);
}

.knowledge-article-body p:first-child {
  margin-top: var(--space-2);
}

/* ====================
   消防知识库 - 响应式
   ==================== */
@media (max-width: 1024px) {
  .knowledge-preview-grid,
  .knowledge-cat-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .knowledge-preview-grid,
  .knowledge-cat-grid {
    grid-template-columns: 1fr;
  }

  .knowledge-article-header {
    padding: var(--space-4);
    gap: var(--space-3);
  }

  .knowledge-article-num {
    font-size: var(--fs-lg);
    min-width: 36px;
  }

  .knowledge-article-header h3 {
    font-size: var(--fs-base);
  }

  .knowledge-article-body.expanded {
    padding: 0 var(--space-4) var(--space-4) calc(var(--space-4) + 36px);
  }
}

/* ====================
   联系方式面板（替代旧表单）
   ==================== */
.contact-actions-wrap {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.contact-action-card {
  background: var(--bg);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  transition: box-shadow 0.3s;
}

.contact-action-card:hover {
  box-shadow: var(--shadow-md);
}

.contact-action-card.wechat-card {
  display: flex;
  gap: var(--space-4);
  align-items: flex-start;
  background: linear-gradient(135deg, #07c160 0%, #06ad56 100%);
  color: white;
  border: none;
}

.contact-action-card.email-card {
  padding-bottom: var(--space-5);
}

.contact-action-card.phone-card {
  display: flex;
  gap: var(--space-4);
  align-items: center;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: white;
  border: none;
}

.contact-action-icon {
  width: 48px;
  height: 48px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: rgba(255,255,255,0.2);
}

.contact-action-icon svg {
  width: 26px;
  height: 26px;
}

.contact-action-body h3 {
  font-size: var(--fs-lg);
  font-weight: 700;
  margin-bottom: 4px;
}

.contact-action-desc {
  font-size: var(--fs-sm);
  opacity: 0.9;
  margin-bottom: var(--space-3);
  line-height: 1.5;
}

.wechat-number-box {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  background: rgba(255,255,255,0.15);
  border-radius: var(--radius-md);
  padding: 10px 16px;
  backdrop-filter: blur(4px);
}

.wechat-number {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: 1px;
}

.copy-btn {
  background: rgba(255,255,255,0.25);
  border: 1px solid rgba(255,255,255,0.4);
  color: white;
  padding: 4px 12px;
  border-radius: var(--radius-sm);
  font-size: var(--fs-xs);
  cursor: pointer;
  transition: background 0.2s;
  white-space: nowrap;
}

.copy-btn:hover {
  background: rgba(255,255,255,0.35);
}

.contact-action-header {
  display: flex;
  gap: var(--space-4);
  align-items: flex-start;
  margin-bottom: var(--space-5);
}

.contact-action-header .contact-action-icon {
  background: var(--primary-light);
  color: var(--primary);
}

.contact-action-header h3 {
  font-size: var(--fs-lg);
  font-weight: 700;
  color: var(--secondary);
  margin-bottom: 4px;
}

.contact-action-header .contact-action-desc {
  color: var(--text-light);
  margin-bottom: 0;
}

.contact-action-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.contact-action-phone {
  font-size: 24px;
  font-weight: 800;
  color: white;
  text-decoration: none;
  letter-spacing: 1px;
}

.contact-action-phone:hover {
  text-decoration: underline;
}

/* ====================
   地图导航容器
   ==================== */
.map-container {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  background: var(--bg-light);
}

.map-placeholder {
  height: 440px;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    linear-gradient(135deg, rgba(200,16,46,0.03) 0%, rgba(30,58,95,0.03) 100%),
    repeating-linear-gradient(0deg, var(--border) 0, var(--border) 1px, transparent 1px, transparent 40px),
    repeating-linear-gradient(90deg, var(--border) 0, var(--border) 1px, transparent 1px, transparent 40px);
}

.map-info-card {
  text-align: center;
  padding: var(--space-8);
  max-width: 520px;
}

.map-info-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto var(--space-5);
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  box-shadow: 0 12px 30px rgba(200,16,46,0.3);
}

.map-info-icon svg {
  width: 32px;
  height: 32px;
}

.map-info-card h3 {
  color: var(--secondary);
  font-size: 22px;
  margin-bottom: 12px;
  font-weight: 700;
}

.map-info-address {
  color: var(--text-light);
  font-size: 16px;
  line-height: 1.7;
  margin-bottom: 8px;
}

.map-info-coord {
  color: var(--text-lighter);
  font-size: 14px;
  margin-bottom: var(--space-5);
}

.map-nav-buttons {
  display: flex;
  gap: var(--space-3);
  justify-content: center;
  flex-wrap: wrap;
}

.map-nav-btn {
  display: inline-flex;
  align-items: center;
  padding: 12px 24px;
}

.btn-outline {
  background: transparent;
  border: 2px solid var(--primary);
  color: var(--primary);
}

.btn-outline:hover {
  background: var(--primary);
  color: white;
}

/* ====================
   客户案例页面
   ==================== */

/* 统计数字 */
.cases-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-5);
}

.cases-stat-item {
  text-align: center;
  padding: var(--space-6);
  background: white;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  transition: transform 0.3s, box-shadow 0.3s;
}

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

.cases-stat-value {
  font-size: 36px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.2;
  margin-bottom: 8px;
}

.cases-stat-label {
  font-size: var(--fs-sm);
  color: var(--text-light);
}

/* 筛选标签 */
.cases-filter {
  display: flex;
  gap: var(--space-3);
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--space-8);
}

.cases-filter-btn {
  padding: 10px 24px;
  border-radius: 100px;
  border: 1px solid var(--border);
  background: white;
  color: var(--text);
  font-size: var(--fs-sm);
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}

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

.cases-filter-btn.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
  box-shadow: 0 4px 12px rgba(200,16,46,0.25);
}

/* 案例卡片网格 */
.cases-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
}

.case-card {
  background: white;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  transition: transform 0.3s, box-shadow 0.3s;
  display: flex;
  flex-direction: column;
}

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

.case-image-wrap {
  position: relative;
  height: 220px;
  overflow: hidden;
  background: var(--bg-light);
}

.case-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s;
}

.case-card:hover .case-image {
  transform: scale(1.05);
}

.case-type-tag {
  position: absolute;
  top: 12px;
  left: 12px;
  background: var(--primary);
  color: white;
  font-size: var(--fs-xs);
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 100px;
  z-index: 2;
}

.case-body {
  padding: var(--space-5);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.case-meta {
  display: flex;
  gap: var(--space-3);
  align-items: center;
  margin-bottom: var(--space-2);
  flex-wrap: wrap;
}

.case-location {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: var(--fs-sm);
  color: var(--text-light);
}

.case-location svg {
  width: 14px;
  height: 14px;
}

.case-period {
  font-size: var(--fs-xs);
  color: var(--text-lighter);
  background: var(--bg-light);
  padding: 2px 10px;
  border-radius: 100px;
}

.case-name {
  font-size: 20px;
  font-weight: 700;
  color: var(--secondary);
  margin-bottom: 6px;
  line-height: 1.3;
}

.case-area {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: var(--fs-sm);
  color: var(--primary);
  font-weight: 600;
  margin-bottom: var(--space-3);
}

.case-area svg {
  width: 14px;
  height: 14px;
}

.case-highlight {
  font-size: var(--fs-sm);
  color: var(--text-light);
  line-height: 1.7;
  margin-bottom: var(--space-3);
  flex: 1;
}

.case-services {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: var(--space-3);
}

.case-service-tag {
  font-size: var(--fs-xs);
  color: var(--primary);
  background: #fff;
  border: 1px solid var(--primary-light);
  padding: 2px 9px;
  border-radius: 100px;
  font-weight: 500;
}

.case-service-tag.more {
  background: var(--bg-light);
  color: var(--text-light);
}

.case-results {
  border-top: 1px dashed var(--border);
  padding-top: var(--space-3);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.case-result-item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: var(--fs-sm);
  color: var(--text);
}

.case-result-item svg {
  width: 16px;
  height: 16px;
  color: var(--success);
  flex-shrink: 0;
  margin-top: 2px;
}

/* 合作须知 */
.requirements-intro {
  max-width: 800px;
  margin: 0 auto var(--space-8);
  text-align: center;
  font-size: var(--fs-base);
  color: var(--text-light);
  line-height: 1.8;
}

.requirements-intro strong {
  color: var(--primary);
  font-weight: 600;
}

.requirements-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-5);
  margin-bottom: var(--space-8);
}

.requirement-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  transition: transform 0.3s, box-shadow 0.3s;
}

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

.requirement-num {
  font-size: 32px;
  font-weight: 800;
  color: var(--primary-light);
  line-height: 1;
  margin-bottom: var(--space-3);
}

.requirement-title {
  font-size: var(--fs-base);
  font-weight: 700;
  color: var(--secondary);
  margin-bottom: 8px;
}

.requirement-desc {
  font-size: var(--fs-sm);
  color: var(--text-light);
  line-height: 1.7;
}

.requirements-notice {
  display: flex;
  gap: var(--space-5);
  background: linear-gradient(135deg, #fff9f0 0%, #fff3e0 100%);
  border: 1px solid #ffe0b2;
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  max-width: 900px;
  margin: 0 auto;
}

.requirements-notice-icon {
  width: 48px;
  height: 48px;
  flex-shrink: 0;
  background: var(--warning);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.requirements-notice-icon svg {
  width: 24px;
  height: 24px;
}

.requirements-notice-body h4 {
  font-size: var(--fs-lg);
  font-weight: 700;
  color: var(--secondary);
  margin-bottom: 8px;
}

.requirements-notice-body p {
  font-size: var(--fs-sm);
  color: var(--text-light);
  line-height: 1.8;
}

.requirements-notice-body strong {
  color: var(--primary);
}

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

  .requirements-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .map-nav-buttons {
    flex-direction: column;
  }

  .map-nav-btn {
    width: 100%;
    justify-content: center;
  }

  .contact-action-card.wechat-card,
  .contact-action-card.phone-card {
    flex-direction: column;
    text-align: center;
  }

  .contact-action-icon {
    margin: 0 auto;
  }

  .wechat-number-box {
    flex-direction: column;
    gap: var(--space-2);
  }

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

  .cases-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-3);
  }

  .cases-stat-item {
    padding: var(--space-4);
  }

  .cases-stat-value {
    font-size: 28px;
  }

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

  .requirements-notice {
    flex-direction: column;
    text-align: center;
  }

  .requirements-notice-icon {
    margin: 0 auto;
  }
}