/* ============================================
   BOOZOUN 航空医疗协调服务 - 设计系统
   医疗深蓝 + 天蓝 + 急救橙
   ============================================ */

:root {
  /* 主色 - 医疗深蓝系 */
  --primary: #0a3d62;
  --primary-dark: #082c4a;
  --primary-light: #3c6382;
  --primary-50: #e8f1f8;
  --primary-100: #d1e3f0;

  /* 辅助色 - 天蓝 */
  --secondary: #3c9bc4;
  --secondary-light: #7bc1dc;

  /* 急救橙 - 仅用于热线/CTA */
  --accent: #ff6b35;
  --accent-dark: #e55a2b;
  --accent-light: #ff8c5e;

  /* 中性色 */
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e1;
  --gray-400: #94a3b8;
  --gray-500: #64748b;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1e293b;
  --gray-900: #0f172a;

  /* 语义色 */
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --info: #3b82f6;

  /* 渐变 */
  --gradient-hero: linear-gradient(135deg, #0a3d62 0%, #1a4d7a 50%, #2c5f8a 100%);
  --gradient-cta: linear-gradient(135deg, #ff6b35 0%, #e55a2b 100%);
  --gradient-card: linear-gradient(135deg, #f8fafc 0%, #e8f1f8 100%);

  /* 阴影 */
  --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-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);

  /* 圆角 */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

  /* 间距 */
  --section-padding: 5rem 0;
  --container-max: 1200px;

  /* 字体 */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono: "SF Mono", Monaco, "Cascadia Code", "Roboto Mono", monospace;
}

/* ============================================
   基础重置
   ============================================ */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--gray-800);
  background: #fff;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

main.page-content {
  flex: 1;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: var(--secondary);
}

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

/* ============================================
   布局容器
   ============================================ */

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: var(--section-padding);
}

.section-gray {
  background: var(--gray-50);
}

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

/* ============================================
   排版
   ============================================ */

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--gray-900);
}

h1 { font-size: clamp(1.75rem, 5vw, 2.5rem); }
h2 { font-size: clamp(1.5rem, 4vw, 2rem); }
h3 { font-size: clamp(1.25rem, 3vw, 1.5rem); }

.section-title {
  text-align: center;
  margin-bottom: 0.5rem;
}

.section-subtitle {
  text-align: center;
  color: var(--gray-500);
  font-size: 1.05rem;
  margin-bottom: 2.5rem;
}

.section-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 3px;
  background: var(--accent);
  margin: 0.75rem auto 0;
  border-radius: var(--radius-full);
}

.text-center { text-align: center; }
.text-accent { color: var(--accent); }
.text-primary { color: var(--primary); }

/* ============================================
   按钮
   ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
  white-space: nowrap;
}

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

.btn-primary:hover {
  background: var(--primary-dark);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-accent {
  background: var(--gradient-cta);
  color: #fff;
}

.btn-accent:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
  color: #fff;
}

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

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

.btn-light {
  background: #fff;
  color: var(--primary);
}

.btn-light:hover {
  background: var(--gray-100);
}

.btn-lg {
  padding: 1rem 2.25rem;
  font-size: 1.1rem;
}

/* 小屏CTA按钮允许换行，避免长电话号码被裁切 */
@media (max-width: 480px) {
  .btn-lg {
    white-space: normal;
    line-height: 1.4;
    padding: 0.85rem 1.5rem;
    font-size: 1rem;
    max-width: 100%;
  }
}

.btn-block {
  width: 100%;
}

/* ============================================
   卡片
   ============================================ */

.card {
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  transition: transform 0.3s, box-shadow 0.3s;
}

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

.card-body {
  padding: 1.75rem;
}

.card-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  background: var(--primary-50);
  color: var(--primary);
}

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

/* 服务卡片网格 */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

/* 固定列数网格(用于已知数量) */
.card-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.card-grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

/* 平板断点 1024px */
@media (max-width: 1024px) {
  .card-grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
  .card-grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  .process-steps {
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
  }
  .nav-menu a {
    padding: 0.5rem 0.4rem;
    font-size: 0.8rem;
  }
}

@media (max-width: 768px) {
  .card-grid-3,
  .card-grid-4 {
    grid-template-columns: 1fr;
  }
}

/* 小屏手机 480px */
@media (max-width: 480px) {
  :root {
    --section-padding: 3rem 0;
  }
  .container {
    padding: 0 1rem;
  }
  .hero {
    padding: 3rem 0;
  }
  .hero-subtitle {
    font-size: 1rem;
  }
  .hero-actions {
    flex-direction: column;
  }
  .hero-actions .btn {
    width: 100%;
  }
  .emergency-card .phone {
    font-size: 1.5rem;
  }
  .top-emergency-bar {
    font-size: 0.75rem;
    padding: 0.3rem 0;
  }
  .top-emergency-bar .container {
    justify-content: center;
    text-align: center;
  }
  .floating-actions {
    right: 1rem;
    bottom: 1rem;
  }
  .floating-btn {
    width: 48px;
    height: 48px;
  }
  .stat-item .num {
    font-size: 2rem;
  }
}

/* ============================================
   顶部紧急联系条
   ============================================ */

.top-emergency-bar {
  background: var(--primary-dark);
  color: #fff;
  padding: 0.4rem 0;
  font-size: 0.875rem;
}

.top-emergency-bar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.top-emergency-bar a {
  color: #fff;
}

.top-emergency-bar .emergency-phone {
  color: var(--accent-light);
  font-weight: 700;
}

.top-emergency-bar .bar-sep {
  color: rgba(255, 255, 255, 0.35);
  margin: 0 0.15rem;
}

.top-emergency-bar .bar-tagline {
  letter-spacing: 0.02em;
}

/* ============================================
   导航栏 (sticky)
   ============================================ */

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: #fff;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.3s;
}

.site-header.scrolled {
  box-shadow: var(--shadow-md);
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 0;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.nav-logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: -0.5px;
}

.nav-logo span {
  color: var(--accent);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  list-style: none;
}

.nav-menu a {
  display: block;
  padding: 0.5rem 0.6rem;
  color: var(--gray-700);
  font-weight: 500;
  font-size: 0.875rem;
  border-radius: var(--radius-sm);
  transition: all 0.2s;
  white-space: nowrap;
}

.nav-menu a:hover,
.nav-menu a.active {
  color: var(--primary);
  background: var(--primary-50);
}

.nav-cta {
  margin-left: 1rem;
}

.lang-switch {
  margin-left: 0.75rem;
  padding: 0.35rem 0.75rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--primary);
  border: 1.5px solid var(--primary);
  border-radius: var(--radius-full);
  white-space: nowrap;
  transition: all 0.2s;
}

.lang-switch:hover {
  background: var(--primary);
  color: #fff;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--primary);
}

@media (max-width: 768px) {
  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    padding: 1rem;
    box-shadow: var(--shadow-lg);
  }

  .nav-menu.open {
    display: flex;
  }

  .nav-menu li {
    width: 100%;
  }

  .nav-menu a {
    padding: 0.75rem 1rem;
  }

  .nav-toggle {
    display: block;
  }

  .nav-cta {
    display: none;
  }

  .lang-switch {
    margin-left: 0.5rem;
    padding: 0.25rem 0.6rem;
    font-size: 0.75rem;
  }
}

/* ============================================
   Hero 区
   ============================================ */

.hero {
  position: relative;
  background: var(--gradient-hero);
  color: #fff;
  padding: 5rem 0;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('/images/hero-bg.jpg') center/cover;
  opacity: 0.15;
}

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

.hero h1 {
  color: #fff;
  margin-bottom: 1rem;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 2rem;
  max-width: 600px;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* 应急热线卡片(首页hero右侧) */
.emergency-card {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-lg);
  padding: 2rem;
  text-align: center;
}

.emergency-card .phone {
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent-light);
  margin: 0.5rem 0;
  white-space: nowrap;
  letter-spacing: 0.5px;
}

/* Hero响应式：平板以下单列，电话卡片全宽 */
@media (max-width: 900px) {
  .hero .container {
    grid-template-columns: 1fr !important;
    gap: 2rem !important;
  }
  .emergency-card {
    max-width: 420px;
    width: 100%;
    margin: 0 auto;
  }
}

@media (max-width: 480px) {
  .emergency-card .phone {
    font-size: 1.5rem;
  }
  .emergency-card {
    padding: 1.5rem;
  }
}

.emergency-card .label {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.8);
}

/* ============================================
   页头(内页用)
   ============================================ */

.page-header {
  background: var(--gradient-hero);
  color: #fff;
  padding: 3rem 0;
  text-align: center;
}

.page-header h1 {
  color: #fff;
  margin-bottom: 0.5rem;
}

.breadcrumb {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.8);
}

.breadcrumb a {
  color: rgba(255, 255, 255, 0.8);
}

.breadcrumb a:hover {
  color: #fff;
}

.breadcrumb span {
  color: rgba(255, 255, 255, 0.5);
}

/* ============================================
   服务流程步骤
   ============================================ */

.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  position: relative;
}

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

.process-step-num {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background: var(--primary);
  color: #fff;
  font-size: 1.25rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem;
}

.process-step h4 {
  margin-bottom: 0.5rem;
}

.process-step p {
  font-size: 0.9rem;
  color: var(--gray-500);
}

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

/* ============================================
   FAQ
   ============================================ */

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

.faq-item {
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  margin-bottom: 0.75rem;
  overflow: hidden;
}

.faq-question {
  padding: 1.25rem 1.5rem;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 600;
  color: var(--gray-800);
  background: #fff;
}

.faq-question:hover {
  background: var(--gray-50);
}

.faq-question .icon {
  transition: transform 0.2s;
}

.faq-item.active .faq-question .icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
  padding: 0 1.5rem;
}

.faq-item.active .faq-answer {
  max-height: 500px;
  padding: 0 1.5rem 1.25rem;
}

/* ============================================
   页脚
   ============================================ */

.site-footer {
  background: var(--gray-900);
  color: var(--gray-400);
  padding: 3rem 0 1.5rem;
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-brand h3 {
  color: #fff;
  margin-bottom: 0.75rem;
}

.footer-brand p {
  font-size: 0.875rem;
  line-height: 1.6;
}

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

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

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

.footer-links a {
  color: var(--gray-400);
  font-size: 0.875rem;
}

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

.footer-contact .phone {
  color: var(--accent-light);
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  display: block;
}

.footer-bottom {
  border-top: 1px solid var(--gray-800);
  padding-top: 1.5rem;
  text-align: center;
  font-size: 0.8rem;
}

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

/* ============================================
   悬浮按钮(电话+微信)
   ============================================ */

.floating-actions {
  position: fixed;
  right: 1.5rem;
  bottom: 1.5rem;
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.floating-btn {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  transition: transform 0.2s;
  cursor: pointer;
}

.floating-btn:hover {
  transform: scale(1.1);
}

.floating-btn svg {
  width: 24px;
  height: 24px;
}

.floating-phone {
  background: var(--accent);
  color: #fff;
}

.floating-chat {
  background: var(--primary);
  color: #fff;
}

/* ============================================
   工具类
   ============================================ */

.mt-0 { margin-top: 0 !important; }
.mt-1 { margin-top: 0.5rem !important; }
.mt-2 { margin-top: 1rem !important; }
.mt-3 { margin-top: 1.5rem !important; }
.mt-4 { margin-top: 2rem !important; }
.mb-0 { margin-bottom: 0 !important; }
.mb-1 { margin-bottom: 0.5rem !important; }
.mb-2 { margin-bottom: 1rem !important; }
.mb-3 { margin-bottom: 1.5rem !important; }
.mb-4 { margin-bottom: 2rem !important; }
.p-0 { padding: 0 !important; }
.hidden { display: none !important; }

/* 动画 */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.animate-fade-up {
  animation: fadeInUp 0.6s ease both;
}

/* 滚动显现 */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .animate-fade-up { animation: none; }
  .reveal { opacity: 1; transform: none; transition: none; }
  * { scroll-behavior: auto !important; }
}

/* ============================================
   Banner图(内页页头)
   ============================================ */

.page-banner {
  width: 100%;
  height: 280px;
  object-fit: cover;
  display: block;
}

@media (max-width: 768px) {
  .page-banner { height: 160px; }
}

/* 半透明遮罩(用于news-banner等) */
.banner-overlay {
  position: relative;
}

.banner-overlay img {
  display: block;
  width: 100%;
}

.banner-overlay::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(10, 61, 98, 0.3) 0%, rgba(10, 61, 98, 0.1) 100%);
}

/* ============================================
   案例卡片
   ============================================ */

.case-card {
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: transform 0.3s, box-shadow 0.3s;
}

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

.case-card-img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.case-card-body {
  padding: 1.5rem;
}

.case-tag {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background: var(--primary-50);
  color: var(--primary);
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  margin-bottom: 0.75rem;
}

.case-card h3 {
  margin-bottom: 0.5rem;
}

.case-card p {
  color: var(--gray-500);
  font-size: 0.9rem;
  margin-bottom: 0.75rem;
}

.case-meta {
  display: flex;
  gap: 1rem;
  font-size: 0.8rem;
  color: var(--gray-400);
  border-top: 1px solid var(--gray-100);
  padding-top: 0.75rem;
}

/* ============================================
   新闻列表
   ============================================ */

.news-list {
  max-width: 900px;
  margin: 0 auto;
}

.news-item {
  display: flex;
  gap: 1.5rem;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--gray-200);
  transition: background 0.2s;
}

.news-item:hover {
  background: var(--gray-50);
}

.news-date {
  flex-shrink: 0;
  width: 80px;
  text-align: center;
  border-right: 2px solid var(--primary-50);
  padding-right: 1rem;
}

.news-date .day {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--primary);
  line-height: 1;
}

.news-date .month {
  font-size: 0.8rem;
  color: var(--gray-400);
  margin-top: 0.25rem;
}

.news-content h3 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.news-content h3 a {
  color: var(--gray-900);
}

.news-content h3 a:hover {
  color: var(--primary);
}

.news-content p {
  color: var(--gray-500);
  font-size: 0.9rem;
}

.news-tag {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  background: var(--accent);
  color: #fff;
  font-size: 0.7rem;
  border-radius: var(--radius-sm);
  margin-right: 0.5rem;
}

@media (max-width: 768px) {
  .news-item {
    flex-direction: column;
    gap: 0.75rem;
  }
  .news-date {
    display: flex;
    align-items: baseline;
    gap: 0.5rem;
    border-right: none;
    border-bottom: 2px solid var(--primary-50);
    padding-right: 0;
    padding-bottom: 0.5rem;
    width: auto;
    text-align: left;
  }
}

/* ============================================
   联系表单
   ============================================ */

.contact-form {
  max-width: 600px;
  margin: 0 auto;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: 0.5rem;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-family: inherit;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(10, 61, 98, 0.1);
}

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

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

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

/* ============================================
   资质展示
   ============================================ */

.cred-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
}

.cred-card {
  background: #fff;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  text-align: center;
  transition: transform 0.2s;
}

.cred-card:hover {
  transform: translateY(-2px);
}

.cred-card img {
  width: 100%;
  height: 280px;
  object-fit: contain;
  background: var(--gray-50);
}

.cred-card-body {
  padding: 1rem;
}

.cred-card h4 {
  font-size: 1rem;
  margin-bottom: 0.25rem;
}

.cred-card p {
  font-size: 0.8rem;
  color: var(--gray-500);
}

/* ============================================
   特性列表(关于我们用)
   ============================================ */

.feature-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  max-width: 800px;
  margin: 0 auto;
}

.feature-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.feature-item .icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: var(--primary-50);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
}

.feature-item .icon svg {
  width: 20px;
  height: 20px;
}

.feature-item h4 {
  font-size: 1rem;
  margin-bottom: 0.25rem;
}

.feature-item p {
  font-size: 0.875rem;
  color: var(--gray-500);
}

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

/* ============================================
   统计数字
   ============================================ */

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  text-align: center;
}

.stat-item .num {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
}

.stat-item .num span {
  font-size: 1.25rem;
  color: var(--accent);
}

.stat-item .label {
  font-size: 0.875rem;
  color: var(--gray-500);
  margin-top: 0.5rem;
}

@media (max-width: 768px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
  }
}