/* ============================================================
   官网主样式表
   ============================================================ */

/* ------------------------- 变量与重置 ------------------------- */
:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-light: #3b82f6;
  --accent: #06b6d4;
  --dark: #0f172a;
  --gray-900: #1e293b;
  --gray-700: #334155;
  --gray-500: #64748b;
  --gray-300: #cbd5e1;
  --gray-100: #f1f5f9;
  --white: #ffffff;
  --gradient-primary: linear-gradient(135deg, #2563eb, #06b6d4);
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.07);
  --shadow-lg: 0 10px 30px rgba(0,0,0,0.1);
  --radius: 12px;
  --transition: all 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB',
    'Microsoft YaHei', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  color: var(--gray-900);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

ul {
  list-style: none;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ------------------------- 按钮 ------------------------- */
.btn {
  display: inline-block;
  padding: 12px 32px;
  border-radius: 50px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  text-align: center;
}

.btn-sm {
  padding: 8px 20px;
  font-size: 14px;
}

.btn-primary {
  background: var(--gradient-primary);
  color: var(--white);
  box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
}

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

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

/* ------------------------- 头部导航 ------------------------- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

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

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

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 700;
  color: var(--dark);
}

.logo img {
  height: 36px;
}

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

.nav-list a {
  font-size: 15px;
  color: var(--gray-700);
  position: relative;
  padding: 4px 0;
}

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

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

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

/* 移动端汉堡菜单 */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}

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

/* ======================== 首页 ======================== */

/* ------------------------- Hero ------------------------- */
.hero {
  padding: 140px 0 100px;
  background: var(--gradient-primary);
  color: var(--white);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: rgba(255,255,255,0.05);
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: rgba(255,255,255,0.05);
}

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

.hero h1 {
  font-size: 52px;
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -1px;
}

.hero .subtitle {
  font-size: 24px;
  font-weight: 500;
  margin-bottom: 20px;
  opacity: 0.9;
}

.hero p {
  font-size: 18px;
  max-width: 700px;
  margin: 0 auto 36px;
  opacity: 0.85;
  line-height: 1.8;
}

/* ------------------------- 特性板块 ------------------------- */
.section {
  padding: 90px 0;
}

.section-title {
  text-align: center;
  margin-bottom: 14px;
  font-size: 36px;
  font-weight: 700;
  color: var(--dark);
}

.section-subtitle {
  text-align: center;
  margin-bottom: 50px;
  font-size: 18px;
  color: var(--gray-500);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
}

.feature-card {
  background: var(--white);
  padding: 36px 24px;
  border-radius: var(--radius);
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid var(--gray-100);
}

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

.feature-card .icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  background: var(--gradient-primary);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  color: var(--white);
}

.feature-card h3 {
  font-size: 20px;
  margin-bottom: 12px;
  color: var(--dark);
}

.feature-card p {
  font-size: 14px;
  color: var(--gray-500);
  line-height: 1.7;
}

/* ------------------------- 关于预览 ------------------------- */
.about-preview {
  background: var(--gray-100);
}

.about-preview .container {
  text-align: center;
  max-width: 800px;
}

.about-preview p {
  font-size: 17px;
  color: var(--gray-700);
  margin-bottom: 30px;
  line-height: 1.8;
}

/* ------------------------- 重点领域（政务/医疗） ------------------------- */
.section-focus {
  background: var(--white);
}

.focus-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
  max-width: 900px;
  margin: 0 auto;
}

.focus-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 40px 32px;
  text-align: center;
  box-shadow: var(--shadow-md);
  border: 2px solid var(--gray-100);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.focus-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-primary);
}

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

.focus-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  color: var(--white);
  font-weight: 700;
}

.focus-card h3 {
  font-size: 24px;
  margin-bottom: 14px;
  color: var(--dark);
}

.focus-card p {
  font-size: 15px;
  color: var(--gray-700);
  line-height: 1.8;
  margin-bottom: 24px;
}

/* ------------------------- 数据统计 ------------------------- */
.stats {
  background: var(--gradient-primary);
  color: var(--white);
}

.stats .section-title {
  color: var(--white);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
}

.stat-item {
  text-align: center;
  padding: 20px;
}

.stat-number {
  font-size: 48px;
  font-weight: 800;
  margin-bottom: 8px;
}

.stat-label {
  font-size: 16px;
  opacity: 0.85;
}

/* ------------------------- 联系 CTA ------------------------- */
.cta-section {
  text-align: center;
}

.cta-section p {
  font-size: 18px;
  color: var(--gray-500);
  margin-bottom: 30px;
}

/* ======================== 子页面 Hero ======================== */
.page-hero {
  padding: 130px 0 70px;
  background: var(--gradient-primary);
  color: var(--white);
  text-align: center;
}

.page-hero h1 {
  font-size: 42px;
  font-weight: 800;
  margin-bottom: 12px;
}

.page-hero p {
  font-size: 20px;
  opacity: 0.9;
}

/* ======================== 关于页面 ======================== */

/* 公司介绍 */
.about-intro {
  max-width: 900px;
  margin: 0 auto;
}

.about-intro h2 {
  text-align: center;
  font-size: 32px;
  margin-bottom: 30px;
}

.about-intro p {
  font-size: 16px;
  color: var(--gray-700);
  margin-bottom: 20px;
  line-height: 1.8;
  text-indent: 2em;
}

/* 团队 */
.team-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.team-card {
  text-align: center;
  padding: 36px 24px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-100);
  transition: var(--transition);
}

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

.team-card .avatar {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  margin: 0 auto 18px;
  background: var(--gray-100);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 36px;
  color: var(--gray-500);
  overflow: hidden;
}

.team-card .avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.team-card h3 {
  font-size: 20px;
  margin-bottom: 4px;
}

.team-card .role {
  font-size: 14px;
  color: var(--primary);
  font-weight: 500;
  margin-bottom: 12px;
}

.team-card p {
  font-size: 14px;
  color: var(--gray-500);
}

/* 发展历程 */
.timeline {
  position: relative;
  max-width: 700px;
  margin: 0 auto;
  padding-left: 40px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 15px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--gray-300);
}

.timeline-item {
  position: relative;
  padding-bottom: 40px;
}

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

.timeline-item::before {
  content: '';
  position: absolute;
  left: -33px;
  top: 4px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--primary);
  border: 3px solid var(--white);
  box-shadow: 0 0 0 2px var(--primary);
}

.timeline-year {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 6px;
}

.timeline-desc {
  font-size: 15px;
  color: var(--gray-500);
}

/* ======================== 服务页面 ======================== */

/* 服务卡片 */
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}

.service-card {
  padding: 36px 28px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-100);
  transition: var(--transition);
}

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

.service-card .icon {
  width: 56px;
  height: 56px;
  background: var(--gradient-primary);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: var(--white);
  margin-bottom: 18px;
}

.service-card h3 {
  font-size: 22px;
  margin-bottom: 10px;
}

.service-card > p {
  font-size: 14px;
  color: var(--gray-500);
  margin-bottom: 18px;
  line-height: 1.7;
}

.service-features {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.service-features li {
  background: var(--gray-100);
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 13px;
  color: var(--gray-700);
}

/* 合作流程 */
.process-steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
}

.process-step {
  text-align: center;
  padding: 30px 16px;
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-100);
  position: relative;
  transition: var(--transition);
}

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

.process-step .step-num {
  width: 44px;
  height: 44px;
  margin: 0 auto 14px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 700;
  color: var(--white);
}

.process-step h4 {
  font-size: 16px;
  margin-bottom: 8px;
}

.process-step p {
  font-size: 13px;
  color: var(--gray-500);
}

/* ======================== 文档中心页面 ======================== */
.doc-quick-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.doc-quick-card {
  display: block;
  text-align: center;
  padding: 36px 24px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-100);
  transition: var(--transition);
  background: var(--white);
}

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

.doc-quick-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  background: var(--gradient-primary);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: var(--white);
}

.doc-quick-card h3 {
  font-size: 18px;
  margin-bottom: 8px;
  color: var(--dark);
}

.doc-quick-card p {
  font-size: 14px;
  color: var(--gray-500);
}

/* 文档分类 */
.doc-category-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.doc-category-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 28px 24px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-100);
  transition: var(--transition);
}

.doc-category-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.doc-category-card h3 {
  font-size: 18px;
  margin-bottom: 8px;
  color: var(--dark);
}

.category-desc {
  font-size: 13px;
  color: var(--gray-500);
  margin-bottom: 16px;
}

.category-articles {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.category-articles li a {
  font-size: 14px;
  color: var(--gray-700);
  padding: 4px 0;
  display: block;
  position: relative;
  padding-left: 16px;
  transition: var(--transition);
}

.category-articles li a::before {
  content: '·';
  position: absolute;
  left: 0;
  color: var(--primary);
  font-weight: 700;
  font-size: 18px;
  line-height: 1.4;
}

.category-articles li a:hover {
  color: var(--primary);
  padding-left: 20px;
}

/* 更新公告 */
.doc-notice-list {
  max-width: 700px;
  margin: 0 auto;
}

.doc-notice-item {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 18px 24px;
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-100);
  margin-bottom: 12px;
  transition: var(--transition);
  cursor: pointer;
}

.doc-notice-item:hover {
  box-shadow: var(--shadow-lg);
  transform: translateX(4px);
  border-color: var(--primary);
}

.notice-date {
  font-size: 13px;
  color: var(--gray-500);
  white-space: nowrap;
  flex-shrink: 0;
}

.notice-title {
  flex: 1;
  font-size: 15px;
  color: var(--gray-900);
  font-weight: 500;
}

.notice-arrow {
  color: var(--gray-300);
  font-size: 16px;
  transition: var(--transition);
}

.doc-notice-item:hover .notice-arrow {
  color: var(--primary);
  transform: translateX(4px);
}

/* ======================== 解决方案页面 ======================== */
.section-solutions {
  padding-bottom: 50px;
}

.solution-card {
  margin-bottom: 30px;
}

.solution-highlight .solution-card-inner {
  border-color: var(--primary);
  border-width: 2px;
  box-shadow: 0 4px 20px rgba(37, 99, 235, 0.12);
}

.solution-card-inner {
  background: var(--white);
  border-radius: var(--radius);
  padding: 40px 36px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-100);
  transition: var(--transition);
}

.solution-card-inner:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.solution-icon {
  width: 56px;
  height: 56px;
  background: var(--gradient-primary);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: var(--white);
  margin-bottom: 20px;
}

.solution-card-inner h3 {
  font-size: 24px;
  margin-bottom: 20px;
  color: var(--dark);
}

.solution-problem,
.solution-solution {
  display: flex;
  gap: 12px;
  margin-bottom: 12px;
  align-items: flex-start;
}

.solution-problem p,
.solution-solution p {
  font-size: 15px;
  color: var(--gray-700);
  line-height: 1.7;
  flex: 1;
}

.solution-problem p {
  color: #dc2626;
}

.solution-solution p {
  color: var(--gray-700);
}

.tag {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 600;
  white-space: nowrap;
  flex-shrink: 0;
  margin-top: 3px;
}

.tag-problem {
  background: #fef2f2;
  color: #dc2626;
}

.tag-solution {
  background: #eff6ff;
  color: var(--primary);
}

.solution-features {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--gray-100);
}

.solution-features li {
  background: var(--gray-100);
  padding: 5px 14px;
  border-radius: 20px;
  font-size: 13px;
  color: var(--gray-700);
}

/* 典型案例 */
.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.case-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 32px 28px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-100);
  transition: var(--transition);
}

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

.case-industry {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  color: var(--primary);
  background: #eff6ff;
  margin-bottom: 14px;
}

.case-card h3 {
  font-size: 18px;
  margin-bottom: 12px;
  color: var(--dark);
}

.case-card p {
  font-size: 14px;
  color: var(--gray-500);
  line-height: 1.7;
}

/* ======================== 联系页面 ======================== */
.contact-wrap {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 50px;
}

.contact-info-static {
  max-width: 640px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.contact-info h2 {
  font-size: 28px;
  margin-bottom: 30px;
}

.contact-item {
  display: flex;
  gap: 16px;
  margin-bottom: 24px;
}

.contact-item .icon {
  width: 44px;
  height: 44px;
  background: var(--gray-100);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--primary);
  flex-shrink: 0;
}

.contact-item .label {
  font-size: 13px;
  color: var(--gray-500);
  margin-bottom: 2px;
}

.contact-item .value {
  font-size: 15px;
  color: var(--gray-900);
  font-weight: 500;
}

/* 表单 */
.contact-form {
  background: var(--white);
  padding: 40px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
}

.contact-form h2 {
  font-size: 24px;
  margin-bottom: 24px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 6px;
  color: var(--gray-700);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--gray-300);
  border-radius: 8px;
  font-size: 15px;
  font-family: inherit;
  transition: var(--transition);
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

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

/* ======================== 页脚 ======================== */
.footer {
  background: var(--dark);
  color: var(--gray-300);
  padding: 50px 0 30px;
}

.footer-inner {
  padding-bottom: 30px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  margin-bottom: 20px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1.5fr auto;
  gap: 40px;
}

.footer-col-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 16px;
}

.footer-about {
  font-size: 14px;
  line-height: 1.8;
  color: var(--gray-400);
  margin: 0;
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

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

.footer-links a {
  color: var(--gray-400);
  text-decoration: none;
  font-size: 14px;
  transition: color 0.3s;
}

.footer-links a:hover {
  color: var(--primary);
}

.footer-contact-item {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
  font-size: 14px;
  color: var(--gray-400);
  line-height: 1.6;
}

.footer-contact-item .icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  margin-top: 2px;
}

.footer-social {
  display: flex;
  gap: 20px;
}

.footer-social .social-item {
  text-align: center;
}

.footer-social .social-item img {
  display: block;
  width: 88px;
  height: 88px;
  border-radius: 8px;
  background: var(--white);
  padding: 4px;
  transition: transform 0.3s ease;
}

.footer-social .social-item img:hover {
  transform: scale(1.05);
}

.footer-social .social-item .qrcode-name {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  color: var(--gray-400);
}

.footer-bottom {
  text-align: center;
  font-size: 14px;
}

.footer-bottom span {
  margin: 0 8px;
}

@media (max-width: 992px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 30px;
  }
  .footer-grid .footer-col:first-child {
    grid-column: 1 / -1;
  }
}

@media (max-width: 480px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid .footer-col:first-child {
    grid-column: auto;
  }
}

/* ======================== 响应式 ======================== */

/* 平板 */
@media (max-width: 992px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

  .process-steps {
    grid-template-columns: repeat(3, 1fr);
  }

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

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

  .hero h1 {
    font-size: 40px;
  }

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

  .focus-grid {
    grid-template-columns: 1fr;
    max-width: 500px;
  }

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

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

/* 手机 */
@media (max-width: 768px) {
  .nav-list {
    display: none;
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    padding: 20px;
    gap: 16px;
    box-shadow: var(--shadow-lg);
  }

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

  .hamburger {
    display: flex;
  }

  .hero h1 {
    font-size: 32px;
  }

  .hero .subtitle {
    font-size: 18px;
  }

  .hero p {
    font-size: 16px;
  }

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

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

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

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

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

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

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

  .solution-card-inner {
    padding: 28px 20px;
  }

  .doc-quick-grid {
    grid-template-columns: 1fr;
  }

  .doc-category-grid {
    grid-template-columns: 1fr;
  }

  .doc-notice-item {
    flex-direction: column;
    gap: 8px;
    align-items: flex-start;
  }

  .stat-number {
    font-size: 36px;
  }

  .page-hero h1 {
    font-size: 32px;
  }

  .contact-form {
    padding: 24px;
  }

  .contact-info-static {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .timeline {
    padding-left: 30px;
  }
}

@media (max-width: 480px) {
  .process-steps {
    grid-template-columns: 1fr;
  }
}

/* ======================== 动画 ======================== */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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