/* ========================================
   南阳多米信息技术有限公司 - 全局样式
   主色：橙色 #F97316
   ======================================== */

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

:root {
  --primary: #F97316;
  --primary-dark: #EA580C;
  --primary-light: #FFedd5;
  --secondary: #1e293b;
  --text-dark: #1e293b;
  --text-gray: #64748b;
  --text-light: #94a3b8;
  --bg-white: #ffffff;
  --bg-light: #f8fafc;
  --bg-gray: #f1f5f9;
  --border: #e2e8f0;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.08);
  --shadow-lg: 0 10px 40px rgba(0,0,0,0.12);
  --radius: 12px;
  --radius-lg: 20px;
  --transition: all 0.3s ease;
  --max-width: 1200px;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
}

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

body {
  color: var(--text-dark);
  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; }

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

/* ========================================
   导航栏
   ======================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: var(--transition);
}

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

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--text-dark);
}

.nav-logo img {
  height: 40px;
  width: auto;
}

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

.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav-links a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-gray);
  position: relative;
  padding: 4px 0;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: width 0.3s ease;
}

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

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

.nav-cta {
  background: var(--primary) !important;
  color: white !important;
  padding: 10px 24px !important;
  border-radius: 50px;
  font-weight: 600 !important;
  transition: transform 0.2s ease, box-shadow 0.2s ease !important;
}

.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 15px rgba(249,115,22,0.35);
}

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

/* 移动端菜单按钮 */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 5px;
  z-index: 1001;
}

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

/* Hero 区域 */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, #fff 0%, #fffbf7 50%, #fff7ed 100%);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(249,115,22,0.08) 0%, transparent 70%);
  border-radius: 50%;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -150px;
  left: -100px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(249,115,22,0.05) 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: 3rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}

.hero-content h1 .highlight {
  color: var(--primary);
  position: relative;
}

.hero-content .subtitle {
  font-size: 1.2rem;
  color: var(--text-gray);
  margin-bottom: 36px;
  max-width: 480px;
  line-height: 1.8;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  margin-bottom: 48px;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary);
  color: white;
  padding: 14px 32px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 1rem;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 4px 15px rgba(249,115,22,0.3);
}

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(249,115,22,0.4);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: var(--text-dark);
  padding: 14px 32px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 1rem;
  border: 2px solid var(--border);
  cursor: pointer;
  transition: var(--transition);
}

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

.hero-stats {
  display: flex;
  gap: 40px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}

.stat-item .stat-number {
  font-size: 2rem;
  font-weight: 800;
  color: var(--primary);
}

.stat-item .stat-label {
  font-size: 0.85rem;
  color: var(--text-light);
  margin-top: 2px;
}

/* Hero 右侧视觉 */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-graphic {
  width: 540px;
  height: 320px;
  background: #ffffff;
  border-radius: 20px;
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  padding: 0;
}

.hero-graphic img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  border-radius: 20px;
}

.hero-graphic .graphic-icon {
  margin-bottom: 20px;
}

.hero-graphic .graphic-icon svg {
  width: 80px;
  height: 80px;
  color: var(--primary);
}

.hero-graphic .graphic-text {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--primary);
  text-align: center;
  padding: 0 30px;
}

/* 装饰元素 - 已移除，改为 Hero SVG 插画 */

/* ========================================
   通用 Section 样式
   ======================================== */
.section {
  padding: 100px 0;
}

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

.section-center {
  text-align: center;
  margin-bottom: 60px;
}

.section-tag {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary);
  padding: 6px 18px;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 16px;
}

.section-title {
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--text-dark);
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-gray);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.8;
}

/* 服务卡片 */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.service-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  border: 1px solid var(--border);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--primary);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

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

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

.service-icon {
  width: 64px;
  height: 64px;
  background: var(--primary-light);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 22px;
}

.service-icon svg {
  width: 32px;
  height: 32px;
  color: var(--primary);
}

.service-card h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-dark);
}

.service-card p {
  color: var(--text-gray);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 20px;
}

.service-list li {
  padding: 6px 0;
  font-size: 0.9rem;
  color: var(--text-gray);
  display: flex;
  align-items: center;
  gap: 8px;
}

.service-list li::before {
  content: '✓';
  color: var(--primary);
  font-weight: 700;
  flex-shrink: 0;
}

/* 优势区域 */
.advantages-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.advantage-item {
  text-align: center;
  padding: 36px 20px;
  border-radius: var(--radius);
  transition: var(--transition);
}

.advantage-item:hover {
  background: var(--bg-white);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.advantage-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 20px;
  background: linear-gradient(135deg, var(--primary-light), #fed7aa);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.advantage-icon svg {
  width: 32px;
  height: 32px;
  color: var(--primary);
}

.advantage-item h4 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.advantage-item p {
  font-size: 0.88rem;
  color: var(--text-gray);
  line-height: 1.6;
}

/* CTA 行动召唤区域 */
.cta-section {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  padding: 80px 0;
  text-align: center;
  color: white;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 500px;
  height: 500px;
  background: rgba(255,255,255,0.06);
  border-radius: 50%;
}

.cta-section h2 {
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 16px;
  position: relative;
}

.cta-section p {
  font-size: 1.1rem;
  opacity: 0.9;
  margin-bottom: 36px;
  position: relative;
  max-width: 550px;
  margin-left: auto;
  margin-right: auto;
}

.btn-white {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: white;
  color: var(--primary);
  padding: 14px 36px;
  border-radius: 50px;
  font-weight: 700;
  font-size: 1rem;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  position: relative;
}

.btn-white:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

/* Footer */
.footer {
  background: var(--secondary);
  color: rgba(255,255,255,0.75);
  padding: 64px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-brand .footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  color: white;
  font-size: 1.2rem;
  font-weight: 700;
}

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

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.7;
  margin-bottom: 20px;
  max-width: 300px;
}

.footer-social {
  display: flex;
  gap: 12px;
}

.footer-social a {
  width: 38px;
  height: 38px;
  background: rgba(255,255,255,0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 0.9rem;
  transition: var(--transition);
}

.footer-social a:hover {
  background: var(--primary);
}

.footer-col h4 {
  color: white;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 20px;
}

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

.footer-col ul li a {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.65);
}

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

.footer-contact-item {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  margin-bottom: 14px;
  font-size: 0.88rem;
}

.footer-contact-item .icon {
  color: var(--primary);
  flex-shrink: 0;
  margin-top: 2px;
  display: flex;
  align-items: center;
}

.footer-contact-item .icon svg {
  color: var(--primary);
}

.footer-bottom {
  text-align: center;
  padding: 24px 0;
  font-size: 0.82rem;
  color: rgba(255,255,255,0.45);
}

/* ========================================
   内页通用样式
   ======================================== */
.page-hero {
  padding: 140px 0 70px;
  background: linear-gradient(135deg, #fff 0%, #fffbf7 100%);
  text-align: center;
  position: relative;
}

.page-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 50% 0%, rgba(249,115,22,0.06) 0%, transparent 70%);
}

.page-hero h1 {
  font-size: 2.6rem;
  font-weight: 800;
  margin-bottom: 16px;
  position: relative;
}

.page-hero p {
  font-size: 1.1rem;
  color: var(--text-gray);
  position: relative;
  max-width: 550px;
  margin: 0 auto;
}

.breadcrumb {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 20px;
  font-size: 0.88rem;
  color: var(--text-light);
  position: relative;
}

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

/* 关于我们页面 */
.about-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: linear-gradient(135deg, var(--primary-light), #fed7aa);
  aspect-ratio: 4/3;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  padding: 0;
}

.about-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.about-text h2 {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 20px;
}

.about-text p {
  color: var(--text-gray);
  margin-bottom: 16px;
  line-height: 1.8;
}

.about-values {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.value-card {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  transition: var(--transition);
}

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

.value-card .value-icon {
  margin-bottom: 16px;
}

.value-card .value-icon svg {
  width: 40px;
  height: 40px;
  color: var(--primary);
  margin: 0 auto;
  display: block;
}

.value-card h4 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.value-card p {
  font-size: 0.88rem;
  color: var(--text-gray);
}

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

.timeline::before {
  content: '';
  position: absolute;
  left: 12px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--border);
}

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

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

.timeline-dot {
  position: absolute;
  left: -26px;
  top: 4px;
  width: 14px;
  height: 14px;
  background: var(--primary);
  border-radius: 50%;
  border: 3px solid var(--primary-light);
}

.timeline-item .year {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 4px;
}

.timeline-item h4 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.timeline-item p {
  font-size: 0.9rem;
  color: var(--text-gray);
}

/* 产品服务详情页 */
.service-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  padding: 60px 0;
  border-bottom: 1px solid var(--border);
}

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

.service-detail.reverse {
  direction: rtl;
}

.service-detail.reverse > * {
  direction: ltr;
}

.detail-content h2 {
  font-size: 1.8rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.detail-content .detail-subtitle {
  color: var(--primary);
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 16px;
}

.detail-content p {
  color: var(--text-gray);
  margin-bottom: 20px;
  line-height: 1.8;
}

.feature-list {
  margin-bottom: 24px;
}

.feature-list li {
  padding: 8px 0;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.93rem;
}

.feature-list li .check {
  color: var(--primary);
  font-weight: 900;
  flex-shrink: 0;
  font-size: 1.1rem;
}

.detail-visual {
  border-radius: var(--radius-lg);
  aspect-ratio: 4/3;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-light);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  padding: 16px;
}

.detail-visual.visual-orange {
  background: linear-gradient(135deg, var(--primary-light), #fed7aa);
}

.detail-visual.visual-blue {
  background: linear-gradient(135deg, #dbeafe, #bfdbfe);
}

.detail-visual.visual-green {
  background: linear-gradient(135deg, #dcfce7, #bbf7d0);
}

/* 流程步骤 */
.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  counter-reset: step;
}

.step-card {
  text-align: center;
  padding: 32px 20px;
  background: var(--bg-white);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  position: relative;
  transition: var(--transition);
}

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

.step-number {
  width: 44px;
  height: 44px;
  background: var(--primary);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.1rem;
  margin: 0 auto 18px;
}

.step-card h4 {
  font-size: 1.02rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.step-card p {
  font-size: 0.85rem;
  color: var(--text-gray);
  line-height: 1.6;
}

/* 联系我们 */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 48px;
}

.contact-info-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 32px;
}

.info-card {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: var(--transition);
}

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

.info-card .card-icon {
  margin-bottom: 12px;
}

.info-card .card-icon svg {
  width: 28px;
  height: 28px;
  color: var(--primary);
}

.info-card h4 {
  font-size: 0.98rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.info-card p {
  font-size: 0.88rem;
  color: var(--text-gray);
}

/* 表单样式 */
.contact-form {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-sm);
}

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

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text-dark);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--border);
  border-radius: 10px;
  font-size: 0.93rem;
  font-family: inherit;
  transition: var(--transition);
  background: var(--bg-white);
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(249,115,22,0.1);
}

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

.btn-submit {
  width: 100%;
  padding: 14px;
  background: var(--primary);
  color: white;
  border: none;
  border-radius: 10px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
}

.btn-submit:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 15px rgba(249,115,22,0.35);
}

/* 地图容器 */
.map-container {
  width: 100%;
  margin-top: 32px;
}

.map-container iframe {
  display: block;
}

/* FAQ 手风琴 */
.faq-list {
  max-width: 760px;
  margin: 0 auto;
}

.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
  transition: var(--transition);
}

.faq-item.active {
  border-color: var(--primary);
}

.faq-question {
  padding: 20px 24px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 600;
  font-size: 0.98rem;
  background: var(--bg-white);
  transition: var(--transition);
}

.faq-question:hover {
  background: var(--bg-light);
}

.faq-question .arrow {
  transition: transform 0.3s ease;
  color: var(--primary);
  font-size: 1.2rem;
}

.faq-item.active .faq-question .arrow {
  transform: rotate(180deg);
}

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

.faq-answer-inner {
  padding: 0 24px 20px;
  color: var(--text-gray);
  font-size: 0.92rem;
  line-height: 1.7;
}

.faq-item.active .faq-answer {
  max-height: 300px;
}

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

  .hero-content .subtitle {
    margin-left: auto;
    margin-right: auto;
  }

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

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

  .hero-visual {
    display: none;
  }

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

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

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

@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: white;
    flex-direction: column;
    padding: 100px 32px 40px;
    gap: 24px;
    box-shadow: var(--shadow-lg);
    transition: right 0.3s ease;
  }

  .nav-links.open {
    right: 0;
  }

  .nav-toggle {
    display: flex;
  }

  .hero-content h1 {
    font-size: 2rem;
  }

  .section-title {
    font-size: 1.8rem;
  }

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

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

  .about-intro {
    grid-template-columns: 1fr;
  }

  .about-values {
    grid-template-columns: 1fr;
  }

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

  .service-detail.reverse {
    direction: ltr;
  }

  .process-steps {
    grid-template-columns: 1fr 1fr;
  }

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

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

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

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

  .hero-stats {
    flex-wrap: wrap;
    gap: 24px;
  }

  .page-hero h1 {
    font-size: 1.8rem;
  }
}

@media (max-width: 480px) {
  .hero-content h1 { font-size: 1.7rem; }
  .section-title { font-size: 1.5rem; }
  .process-steps { grid-template-columns: 1fr; }
  .advantages-grid { grid-template-columns: 1fr; }
}

/* 社交媒体二维码悬停 */
.social-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 20px;
  background: var(--bg-light);
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.9rem;
  border: 1px solid var(--border);
  cursor: pointer;
  transition: all 0.3s ease;
}

.social-btn:hover {
  background: var(--primary-light);
  border-color: var(--primary);
  color: var(--primary);
}

.qr-popup {
  position: absolute;
  bottom: calc(100% + 12px);
  left: 50%;
  transform: translateX(-50%) scale(0.9);
  background: white;
  border-radius: 12px;
  padding: 12px;
  box-shadow: 0 10px 40px rgba(0,0,0,0.15);
  border: 1px solid var(--border);
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  z-index: 100;
  width: 160px;
  text-align: center;
}

.qr-popup::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 8px solid transparent;
  border-top-color: white;
}

.qr-popup img {
  width: 120px;
  height: 120px;
  object-fit: cover;
  border-radius: 8px;
  display: block;
  margin: 0 auto 8px;
}

.qr-popup p {
  font-size: 0.75rem;
  color: var(--text-gray);
  margin: 0;
  font-weight: 500;
}

.social-btn:hover .qr-popup {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) scale(1);
}

/* 资讯发布板块 */
.news-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 28px;
  margin-top: 40px;
  align-items: stretch;
}

.news-card {
  background: #fff;
  border-radius: 16px;
  border: 1px solid var(--border);
  overflow: hidden;
  transition: all 0.3s ease;
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
}

.news-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.1);
  border-color: var(--primary);
}

/* Featured 大卡 — 占满左侧一列 */
.news-featured {
  grid-row: 1 / 4;
  display: flex;
  flex-direction: column;
}

.news-featured .news-image {
  width: 100%;
  min-height: 280px;
  overflow: hidden;
  flex-shrink: 0;
  background: var(--bg-light);
  display: flex;
  align-items: center;
  justify-content: center;
}

.news-featured .news-image svg {
  width: 100%;
  height: auto;
  display: block;
}

.news-featured .news-content {
  padding: 28px 28px 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

/* 右侧小卡 — 紧凑横向布局 */
.news-card:not(.news-featured) {
  flex-direction: row;
  align-items: stretch;
}

.news-card:not(.news-featured) .news-content {
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  flex: 1;
}

.news-card:not(.news-featured) .news-icon {
  width: 96px;
  min-height: 96px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 16px 16px 16px 8px;
}

.news-card:not(.news-featured) .news-icon svg {
  width: 96px;
  height: 96px;
  display: block;
}

.news-tag {
  display: inline-block;
  padding: 4px 12px;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 700;
  margin-bottom: 10px;
  width: fit-content;
}

.news-card h3 {
  font-size: 1rem;
  font-weight: 800;
  color: var(--text-dark);
  margin-bottom: 6px;
  line-height: 1.5;
}

.news-featured h3 {
  font-size: 1.25rem;
}

.news-card p {
  font-size: 0.88rem;
  color: var(--text-gray);
  line-height: 1.6;
  margin-bottom: 12px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-meta {
  display: flex;
  gap: 16px;
  font-size: 0.78rem;
  color: var(--text-light);
  margin-top: auto;
}

.news-meta span {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

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

  .news-featured {
    grid-row: auto;
  }

  .news-featured .news-image {
    min-height: 180px;
  }

  .news-card:not(.news-featured) {
    flex-direction: column;
  }

  .news-card:not(.news-featured) .news-icon {
    width: 100%;
    min-height: 0;
    margin: 0;
    padding: 12px;
    justify-content: flex-start;
  }

  .news-card:not(.news-featured) .news-icon svg {
    width: 72px;
    height: 72px;
  }
}

/* 资讯列表页 */
.news-filter {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

.filter-btn {
  padding: 8px 20px;
  border-radius: 50px;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--text-gray);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
}

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

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

.news-list-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

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