/* ============================================
   砺商云服 - 企业官网全局样式
   配色取自logo青蓝渐变: #2BC4B6 → #1E88C7
   ============================================ */

/* --- CSS变量 --- */
:root {
  --primary: #1E88C7;
  --primary-light: #2BC4B6;
  --primary-dark: #1565C0;
  --gradient: linear-gradient(135deg, #2BC4B6 0%, #1E88C7 100%);
  --gradient-hover: linear-gradient(135deg, #26b0a3 0%, #1976d2 100%);
  --dark: #1a2332;
  --text-primary: #1a2332;
  --text-secondary: #5a6c7d;
  --text-muted: #8c9bab;
  --bg-white: #ffffff;
  --bg-light: #f4f7fa;
  --bg-gray: #e8eef3;
  --border-color: #e1e8ed;
  --shadow-sm: 0 2px 12px rgba(26,35,50,0.06);
  --shadow-md: 0 4px 24px rgba(26,35,50,0.08);
  --shadow-lg: 0 8px 40px rgba(26,35,50,0.12);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --transition: all 0.3s ease;
  --max-width: 1200px;
  --header-height: 92px;
}

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

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  color: var(--text-primary);
  background: var(--bg-white);
  line-height: 1.7;
  overflow-x: hidden;
}

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

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

ul, ol {
  list-style: none;
}

h1, h2, h3, h4 {
  font-weight: 600;
  line-height: 1.3;
}

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

.section {
  padding: 80px 0;
}

.section-title {
  text-align: center;
  margin-bottom: 56px;
}

.section-title h2 {
  font-size: 36px;
  font-weight: 700;
  margin-bottom: 14px;
  position: relative;
  display: inline-block;
}

.section-title h2::after {
  content: '';
  display: block;
  width: 48px;
  height: 3px;
  background: var(--gradient);
  margin: 14px auto 0;
  border-radius: 2px;
}

.section-title p {
  font-size: 17px;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 10px auto 0;
}

/* --- 导航栏 Header --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

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

.logo img {
  height: 70px;
  width: auto;
  mix-blend-mode: multiply;
  object-fit: contain;
}

.logo-text {
  font-size: 18px;
  font-weight: 700;
  color: var(--dark);
}

.logo-text span {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-list a {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  padding: 6px 0;
}

.nav-list a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient);
  transition: var(--transition);
  border-radius: 1px;
}

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

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

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 36px;
  background: var(--gradient);
  color: #fff !important;
  border-radius: 50px;
  font-weight: 500;
  font-size: 14px;
  cursor: pointer;
  white-space: nowrap;
  transition: var(--transition);
  box-shadow: 0 2px 8px rgba(30,136,199,0.25);
}

.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(30,136,199,0.35);
}

.nav-cta::after {
  display: none !important;
}

/* 移动端菜单按钮 */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--dark);
  border-radius: 2px;
  transition: var(--transition);
}

/* --- Hero 区域 --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--header-height);
  background: linear-gradient(160deg, #f0f7fb 0%, #eaf4fc 40%, #f4f7fa 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -150px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(43,196,182,0.08) 0%, transparent 70%);
  border-radius: 50%;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -100px;
  left: -100px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(30,136,199,0.06) 0%, transparent 70%);
  border-radius: 50%;
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-content h1 {
  font-size: 44px;
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 20px;
  letter-spacing: -0.5px;
}

.hero-content h1 .highlight {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-content p {
  font-size: 18px;
  color: var(--text-secondary);
  margin-bottom: 34px;
  line-height: 1.8;
}

.hero-btns {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  background: var(--gradient);
  color: #fff;
  border: none;
  border-radius: 50px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(30,136,199,0.35);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
  border-radius: 50px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}

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

.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-visual .visual-box {
  width: 420px;
  height: 380px;
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 40px;
  position: relative;
}

.hero-visual .visual-box img {
  width: 180px;
  opacity: 0.92;
}

.hero-visual .visual-box .badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  padding: 6px 20px;
  background: var(--gradient);
  color: #fff;
  border-radius: 50px;
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
}

/* --- 认证徽章样式 --- */
.cert-badges {
  display: flex;
  flex-direction: column;
  gap: 12px;
  width: 100%;
}

.cert-badge {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 18px;
  border-radius: 10px;
  border: 1px solid;
}

.cert-badge-primary {
  background: linear-gradient(135deg, rgba(43,196,182,0.08), rgba(30,136,199,0.08));
  border-color: rgba(43,196,182,0.2);
}

.cert-badge-blue {
  background: linear-gradient(135deg, rgba(30,136,199,0.06), rgba(21,101,192,0.06));
  border-color: rgba(30,136,199,0.15);
}

.cert-badge-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: var(--gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.cert-badge-icon-blue {
  background: linear-gradient(135deg, #1E88C7, #1565C0);
}

.cert-badge-text {
  flex: 1;
  min-width: 0;
}

.cert-badge-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.3;
}

.cert-badge-desc {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.3;
  margin-top: 2px;
}

.cert-badge-tag {
  font-size: 11px;
  padding: 3px 10px;
  border-radius: 50px;
  font-weight: 600;
  white-space: nowrap;
  flex-shrink: 0;
}

.cert-badge-tag-primary {
  background: rgba(43,196,182,0.15);
  color: #1aa88f;
}

.cert-badge-tag-blue {
  background: rgba(30,136,199,0.12);
  color: #1976d2;
}

/* 统计数据条 */
.hero-stats {
  display: flex;
  gap: 36px;
  margin-top: 42px;
  padding-top: 28px;
  border-top: 1px solid var(--border-color);
}

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

.stat-item strong {
  display: block;
  font-size: 28px;
  font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-item span {
  display: block;
  font-size: 13px;
  color: var(--text-muted);
  text-align: center;
}

/* --- 卡片网格 --- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 28px;
}

.service-overview-grid {
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
}

.card {
  background: var(--bg-white);
  border-radius: var(--radius-md);
  padding: 36px 28px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

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

.card-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, rgba(43,196,182,0.12), rgba(30,136,199,0.12));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  margin-bottom: 20px;
  margin-left: auto;
  margin-right: auto;
}

.card h3 {
  font-size: 19px;
  margin-bottom: 11px;
  font-weight: 600;
  text-align: center;
}

.card p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* --- 特色区块（两列） --- */
.feature-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  margin-bottom: 60px;
}

.feature-row.reverse {
  direction: rtl;
}

.feature-row.reverse > * {
  direction: ltr;
}

.feature-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  background: var(--bg-light);
  aspect-ratio: 4/3;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 300px;
}

.feature-content h3 {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 16px;
}

.feature-content p {
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: 24px;
  line-height: 1.8;
}

.feature-content ul li {
  padding: 8px 0;
  font-size: 15px;
  color: var(--text-secondary);
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.feature-content ul li::before {
  content: '\2713';
  color: var(--primary-light);
  font-weight: bold;
  margin-top: 1px;
  flex-shrink: 0;
}

/* --- 页脚 Footer --- */
.footer {
  background: var(--dark);
  color: #b8c5d0;
  padding: 60px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 40px;
  padding-bottom: 46px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-brand img {
  height: 40px;
  margin-bottom: 16px;
  background: #fff;
  padding: 4px 10px;
  border-radius: 6px;
  display: inline-block;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  color: #8c9bab;
  margin-bottom: 16px;
}

.footer-col h4 {
  color: #fff;
  font-size: 16px;
  margin-bottom: 20px;
  font-weight: 600;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul li a {
  color: #8c9bab;
  font-size: 14px;
}

.footer-col ul li a:hover {
  color: var(--primary-light);
}

.footer-contact p {
  font-size: 14px;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.footer-bottom {
  text-align: center;
  padding: 20px 0;
  font-size: 13px;
  color: #5a6872;
}

/* --- 内页 Banner (子页面) --- */
.page-banner {
  padding: 130px 0 60px;
  background: linear-gradient(160deg, #1a2332 0%, #26405a 100%);
  color: #fff;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-banner::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.page-banner h1 {
  font-size: 40px;
  font-weight: 700;
  margin-bottom: 14px;
  position: relative;
  z-index: 1;
}

.page-banner p {
  font-size: 17px;
  color: rgba(255,255,255,0.65);
  position: relative;
  z-index: 1;
}

.breadcrumb {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 20px;
  font-size: 14px;
  position: relative;
  z-index: 1;
}

.breadcrumb a {
  color: rgba(255,255,255,0.55);
}

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

.breadcrumb span {
  color: rgba(255,255,255,0.35);
}

/* --- 联系表单 --- */
.contact-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  max-width: 720px;
}

.form-group {
  display: flex;
  flex-direction: column;
}

.form-group.full {
  grid-column: span 2;
}

.form-group label {
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 6px;
  color: var(--text-primary);
}

.form-group input,
.form-group textarea,
.form-group select {
  padding: 12px 16px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-family: inherit;
  transition: var(--transition);
  outline: none;
  background: var(--bg-white);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(30,136,199,0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 110px;
}

.btn-submit {
  grid-column: span 2;
  padding: 14px 36px;
  background: var(--gradient);
  color: #fff;
  border: none;
  border-radius: 50px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.btn-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(30,136,199,0.3);
}

/* --- 案例卡片 --- */
.case-card {
  background: var(--bg-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  transition: var(--transition);
}

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

.case-card-header {
  padding: 28px 28px 0;
}

.case-tag {
  display: inline-block;
  padding: 4px 14px;
  border-radius: 50px;
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 14px;
}

.tag-health { background: rgba(43,196,182,0.12); color: #1aa88f; }
.tag-edu { background: rgba(30,136,199,0.12); color: #1976d2; }
.tag-gov { background: rgba(244,67,54,0.1); color: #d32f2f; }
.tag-medical { background: rgba(156,39,176,0.10); color: #7b1fa2; }
.tag-mfg { background: rgba(255,152,0,0.11); color: #e65100; }
.tag-retail { background: rgba(0,188,212,0.12); color: #0097a7; }
.tag-finance { background: rgba(63,81,181,0.10); color: #3f51b5; }

/* --- 行业网格（6列） --- */
.industry-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.industry-item {
  padding: 28px 22px;
  border-radius: var(--radius-md);
  text-align: center;
  transition: var(--transition);
  cursor: default;
}

.industry-item:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.industry-icon {
  font-size: 36px;
  margin-bottom: 12px;
}

.industry-item h4 {
  font-size: 17px;
  margin-bottom: 6px;
}

.industry-item p {
  font-size: 13px;
  color: var(--text-muted);
}

.case-card-body {
  padding: 0 28px 28px;
}

.case-card-body h3 {
  font-size: 21px;
  font-weight: 600;
  margin-bottom: 10px;
}

.case-card-body p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 16px;
}

.case-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  padding-top: 16px;
  border-top: 1px solid var(--bg-gray);
}

.metric {
  text-align: center;
}

.metric strong {
  display: block;
  font-size: 22px;
  font-weight: 700;
  color: var(--primary);
}

.metric span {
  font-size: 12px;
  color: var(--text-muted);
}

/* --- 时间轴 --- */
.timeline {
  position: relative;
  max-width: 750px;
  margin: 0 auto;
  padding-left: 32px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 10px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--bg-gray);
}

.timeline-item {
  position: relative;
  padding-bottom: 36px;
}

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

.timeline-dot {
  position: absolute;
  left: -28px;
  top: 4px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--gradient);
  border: 3px solid var(--bg-white);
  box-shadow: 0 0 0 2px var(--primary-light);
}

.timeline-year {
  font-size: 14px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 4px;
}

.timeline-title {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 6px;
}

.timeline-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* --- 响应式设计 --- */
@media (max-width: 1024px) {
  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-stats {
    justify-content: center;
  }

  .hero-btns {
    justify-content: center;
  }

  .feature-row {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .feature-row.reverse {
    direction: ltr;
  }

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

@media (max-width: 768px) {
  :root {
    --header-height: 64px;
  }

  .section {
    padding: 56px 0;
  }

  .section-title h2 {
    font-size: 28px;
  }

  .nav-list {
    display: none;
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--bg-white);
    flex-direction: column;
    padding: 24px;
    gap: 0;
    box-shadow: var(--shadow-md);
    border-top: 1px solid var(--border-color);
  }

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

  .nav-list a {
    padding: 14px 0;
    font-size: 16px;
    border-bottom: 1px solid var(--bg-gray);
  }

  .menu-toggle {
    display: flex;
  }

  .nav-cta {
    margin-top: 12px;
    text-align: center;
    justify-content: center;
  }

  .hero-content h1 {
    font-size: 30px;
  }

  .hero-content p {
    font-size: 15px;
  }

  .hero-visual .visual-box {
    width: 280px;
    height: 260px;
  }

  .hero-visual .visual-box img {
    width: 120px;
  }

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

  .service-overview-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }

  .service-overview-grid .card {
    padding: 20px 12px;
  }

  .service-overview-grid .card h3 {
    font-size: 14px;
  }

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

  .page-banner {
    padding: 110px 0 44px;
  }

  .page-banner h1 {
    font-size: 28px;
  }

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

  .form-group.full {
    grid-column: span 1;
  }

  .btn-submit {
    grid-column: span 1;
  }

  .case-metrics {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .hero-stats {
    flex-wrap: wrap;
    gap: 20px;
  }
}

/* --- 联系我们页两栏布局 --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 56px;
  align-items: start;
}

.contact-sidebar {
  background: var(--bg-light);
  border-radius: var(--radius-md);
  padding: 36px 28px;
  position: sticky;
  top: 96px;
}

/* ============================================
   手机端深度优化 (max-width: 768px)
   ============================================ */
@media (max-width: 768px) {
  /* --- Logo 缩小 --- */
  .logo img {
    height: 44px !important;
  }

  .logo-text {
    font-size: 15px;
  }

  /* --- 导航栏优化 --- */
  .nav-list {
    gap: 0;
  }

  .nav-list a {
    padding: 14px 0;
    font-size: 16px;
    border-bottom: 1px solid var(--bg-gray);
    width: 100%;
  }

  .nav-cta {
    padding: 12px 24px;
    font-size: 14px;
    margin-top: 16px;
    width: 100%;
    text-align: center;
    justify-content: center;
    border-radius: 50px;
  }

  /* --- Hero 区域优化 --- */
  .hero {
    min-height: auto;
    padding-top: calc(var(--header-height) + 32px);
    padding-bottom: 48px;
  }

  .hero-content h1 {
    font-size: 28px;
    line-height: 1.35;
  }

  .hero-content p {
    font-size: 15px;
    line-height: 1.7;
  }

  .hero-btns {
    flex-direction: column;
    align-items: center;
    gap: 12px;
  }

  .hero-btns .btn-primary,
  .hero-btns .btn-outline {
    width: 100%;
    justify-content: center;
  }

  .hero-visual {
    margin-top: 32px;
  }

  .hero-visual .visual-box {
    width: 100%;
    max-width: 320px;
    height: auto;
    min-height: 220px;
    padding: 28px 20px;
  }

  /* 认证徽章手机端优化 */
  .cert-badge {
    padding: 10px 14px;
    gap: 10px;
  }

  .cert-badge-icon {
    width: 32px;
    height: 32px;
    border-radius: 6px;
  }

  .cert-badge-icon svg {
    width: 16px;
    height: 16px;
  }

  .cert-badge-title {
    font-size: 12px;
  }

  .cert-badge-desc {
    font-size: 11px;
  }

  .cert-badge-tag {
    font-size: 10px;
    padding: 2px 8px;
  }

  .hero-stats {
    flex-direction: column;
    align-items: center;
    gap: 16px;
    margin-top: 28px;
  }

  .stat-item strong {
    font-size: 26px;
  }

  /* --- 特色区块图片优化 --- */
  .feature-image {
    min-height: 200px;
  }

  .feature-image img {
    max-width: 90%;
    height: auto;
  }

  .feature-content h3 {
    font-size: 22px;
  }

  .feature-content p {
    font-size: 15px;
  }

  /* --- 卡片优化 --- */
  .card {
    padding: 28px 20px;
  }

  .card-icon {
    width: 48px;
    height: 48px;
    font-size: 22px;
  }

  .card h3 {
    font-size: 17px;
  }

  .card p {
    font-size: 14px;
  }

  /* --- 行业网格：手机端单列 --- */
  .industry-grid {
    grid-template-columns: 1fr;
  }

  /* --- 内页 Banner 优化 --- */
  .page-banner {
    padding: 100px 0 36px;
  }

  .page-banner h1 {
    font-size: 26px;
  }

  .page-banner p {
    font-size: 15px;
  }

  /* --- 联系我们页两栏堆叠 --- */
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .contact-sidebar {
    position: static;
    padding: 28px 20px;
  }

  /* --- 表单优化 --- */
  .contact-form {
    gap: 14px;
  }

  .form-group input,
  .form-group textarea,
  .form-group select {
    padding: 14px 14px;
    font-size: 16px; /* 防止 iOS 自动缩放 */
  }

  .btn-submit {
    padding: 16px 28px;
    font-size: 16px;
  }

  /* --- 案例指标优化 --- */
  .case-metrics {
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
  }

  .metric strong {
    font-size: 18px;
  }

  /* --- 页脚优化 --- */
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .footer-brand img {
    height: 36px;
  }

  .footer-bottom {
    font-size: 12px;
  }

  /* --- 通用间距缩小 --- */
  .section {
    padding: 48px 0;
  }

  .section-title {
    margin-bottom: 32px;
  }

  .section-title h2 {
    font-size: 24px;
  }

  .section-title p {
    font-size: 15px;
  }

  .container {
    padding: 0 16px;
  }
}

/* ============================================
   超小屏幕优化 (max-width: 480px)
   ============================================ */
@media (max-width: 480px) {
  .hero-content h1 {
    font-size: 24px;
  }

  .hero-visual .visual-box {
    min-height: 180px;
    padding: 20px 16px;
  }

  .hero-visual .visual-box img {
    width: 140px;
  }

  /* 认证徽章超小屏幕优化 */
  .cert-badges {
    gap: 8px;
  }

  .cert-badge {
    padding: 8px 10px;
    gap: 8px;
  }

  .cert-badge-icon {
    width: 28px;
    height: 28px;
    border-radius: 5px;
  }

  .cert-badge-icon svg {
    width: 14px;
    height: 14px;
  }

  .cert-badge-title {
    font-size: 11px;
  }

  .cert-badge-desc {
    font-size: 10px;
  }

  .cert-badge-tag {
    font-size: 9px;
    padding: 2px 6px;
  }

  .feature-image {
    min-height: 160px;
  }

  .case-metrics {
    grid-template-columns: 1fr;
    text-align: center;
  }

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

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

  .btn-primary,
  .btn-outline {
    padding: 13px 20px;
    font-size: 14px;
    width: 100%;
    justify-content: center;
  }
}

/* ============================================
   触摸设备优化
   ============================================ */
@media (hover: none) and (pointer: coarse) {
  /* 增大触摸目标 */
  .nav-list a,
  .btn-primary,
  .btn-outline,
  .btn-submit,
  .nav-cta {
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  /* 移除悬停效果，改为激活效果 */
  .card:hover,
  .case-card:hover,
  .industry-item:hover {
    transform: none;
  }

  .card:active,
  .case-card:active {
    transform: scale(0.98);
  }

  /* 防止 iOS 点击高亮 */
  * {
    -webkit-tap-highlight-color: transparent;
  }
}