/* ========================================
   学者教育官网 - 全局样式
   ======================================== */

/* Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=Noto+Sans+SC:wght@400;500;700&display=swap');

/* CSS Variables */
:root {
  --primary: #1E7F4E;
  --primary-light: #2EAD6A;
  --secondary: #3B82F6;
  --accent: #F59E0B;
  --bg-white: #FFFFFF;
  --bg-light: #F8FAFC;
  --bg-dark: #0F172A;
  --text-dark: #1E293B;
  --text-gray: #64748B;
  --text-light: #94A3B8;
  --border: #E2E8F0;
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  font-family: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--text-dark);
  background: var(--bg-white);
  line-height: 1.6;
  overflow-x: hidden;
}

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

ul, ol {
  list-style: none;
}

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

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

input, textarea, select {
  font-family: inherit;
  outline: none;
}

/* Utility Classes */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.section {
  padding: 100px 0;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 1rem;
  color: var(--text-dark);
}

.section-subtitle {
  font-size: 1.125rem;
  text-align: center;
  color: var(--text-gray);
  margin-bottom: 3rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 50px;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: white;
  box-shadow: 0 4px 15px rgba(30, 127, 78, 0.4);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(30, 127, 78, 0.5);
}

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

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

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

.btn-white:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(20px);
  transition: var(--transition);
}

.navbar.scrolled {
  box-shadow: var(--shadow-lg);
}

.nav-container {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 40px;
  max-width: 1400px;
  margin: 0 auto;
}



.nav-menu {
  display: flex;
  align-items: center;
  gap: 40px;
}

.nav-link {
  color: rgba(255, 255, 255, 0.85);
  font-weight: 500;
  padding: 8px 0;
  position: relative;
}

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

.nav-link:hover, .nav-link.active {
  color: white;
}

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

.nav-oa-btn {
  background: linear-gradient(135deg, var(--secondary), #60A5FA);
  color: white;
  padding: 10px 24px;
  border-radius: 8px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition);
}

.nav-oa-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(59, 130, 246, 0.5);
}

/* 下拉菜单 */
.nav-dropdown {
  position: relative;
}

.nav-dropdown-btn {
  display: flex;
  align-items: center;
  gap: 4px;
  color: rgba(255, 255, 255, 0.9);
  font-size: 0.95rem;
  font-weight: 500;
  padding: 8px 0;
  cursor: pointer;
  transition: color 0.2s;
}

.nav-dropdown-btn:hover {
  color: white;
}

.nav-dropdown-btn::after {
  content: '▼';
  font-size: 0.6rem;
  margin-left: 4px;
  transition: transform 0.2s;
}

.nav-dropdown:hover .nav-dropdown-btn::after {
  transform: rotate(180deg);
}

.nav-dropdown-content {
  display: none;
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  min-width: 200px;
  background: white;
  border-radius: 12px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
  padding: 12px 0;
  z-index: 1001;
}

.nav-dropdown:hover .nav-dropdown-content {
  display: block;
}

.nav-dropdown-content a {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  color: var(--text-dark);
  font-size: 0.9rem;
  transition: background 0.2s;
  white-space: nowrap;
}

.nav-dropdown-content a:hover {
  background: rgba(59, 130, 246, 0.08);
  color: var(--primary);
}

.nav-dropdown-divider {
  height: 1px;
  background: rgba(0, 0, 0, 0.1);
  margin: 8px 0;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  background: transparent;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: white;
  transition: var(--transition);
}

/* Mobile Menu */
.mobile-menu {
  display: none;
  position: fixed;
  top: 77px;
  left: 0;
  right: 0;
  background: var(--bg-dark);
  padding: 20px;
  flex-direction: column;
  gap: 16px;
  box-shadow: var(--shadow-lg);
  z-index: 10000;
}

.mobile-menu.active {
  display: flex;
}

/* Hero Section */
.hero {
  min-height: 100vh;
  background: linear-gradient(135deg, rgba(15, 23, 42, 0.95), rgba(30, 127, 78, 0.9)),
              url('https://images.unsplash.com/photo-1523050854058-8df90110c9f1?w=1920&q=80') center/cover;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: white;
  position: relative;
  overflow: hidden;
}

.hero::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");
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 1100px;
  padding: 0 40px;
  animation: fadeInUp 1s ease-out;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.15);
  padding: 12px 28px;
  border-radius: 50px;
  font-size: 1.1rem;
  margin-bottom: 24px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  font-weight: 500;
  letter-spacing: 1px;
}

.hero-title {
  font-size: 5rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 32px;
  background: linear-gradient(135deg, #ffffff, #e0f2fe);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  white-space: nowrap;
}

.hero-subtitle {
  font-size: 1.6rem;
  opacity: 0.95;
  margin-bottom: 48px;
  line-height: 1.7;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* Stats Section */
.stats {
  background: white;
  padding: 60px 0;
  margin-top: -60px;
  position: relative;
  z-index: 10;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  max-width: 1000px;
  margin: 0 auto;
  background: white;
  border-radius: 20px;
  padding: 40px;
  box-shadow: var(--shadow-xl);
}

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

.stat-number {
  font-size: 3rem;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 8px;
}

.stat-label {
  color: var(--text-gray);
  font-size: 1rem;
}

/* Services Section */
.services {
  background: var(--bg-light);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.service-card {
  background: white;
  padding: 40px 30px;
  border-radius: 20px;
  text-align: center;
  transition: var(--transition);
  border: 1px solid transparent;
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary);
}

.service-icon {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, rgba(30, 127, 78, 0.1), rgba(46, 173, 106, 0.1));
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
  font-size: 2rem;
  transition: var(--transition);
}

.service-card:hover .service-icon {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
}

.service-card:hover .service-icon span {
  color: white;
}

.service-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-dark);
}

.service-desc {
  color: var(--text-gray);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* Features Section */
.features {
  background: white;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}

.feature-item {
  display: flex;
  gap: 20px;
  padding: 30px;
  border-radius: 16px;
  transition: var(--transition);
}

.feature-item:hover {
  background: var(--bg-light);
}

.feature-icon {
  width: 60px;
  height: 60px;
  min-width: 60px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.5rem;
}

.feature-content h4 {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-dark);
}

.feature-content p {
  color: var(--text-gray);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* Partners Section */
.partners {
  background: var(--bg-light);
}

.partners-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 30px;
  align-items: center;
}

.partner-logo {
  background: white;
  padding: 30px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100px;
  transition: var(--transition);
  border: 1px solid var(--border);
}

.partner-logo:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow);
}

.partner-logo img {
  max-height: 50px;
  filter: grayscale(100%);
  opacity: 0.6;
  transition: var(--transition);
}

.partner-logo:hover img {
  filter: grayscale(0%);
  opacity: 1;
}

/* CTA Section */
.cta {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: white;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
  animation: pulse 15s infinite;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.1); }
}

.cta-content {
  position: relative;
  z-index: 1;
}

.cta h2 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.cta p {
  font-size: 1.125rem;
  margin-bottom: 32px;
  opacity: 0.9;
}

.cta .btn-white {
  font-size: 1.125rem;
  padding: 16px 40px;
}

/* Footer */
.footer {
  background: var(--bg-dark);
  color: white;
  padding: 80px 0 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 60px;
  margin-bottom: 60px;
}

.footer-brand {
  max-width: 300px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 20px;
}

.footer-desc {
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.8;
  margin-bottom: 24px;
}

.footer-social {
  display: flex;
  gap: 12px;
  justify-content: space-between;
  margin-top: 16px;
}

.footer-social a {
  flex: 1;
  height: 40px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  font-size: 0.9rem;
  text-decoration: none;
  color: rgba(255, 255, 255, 0.8);
}

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

.footer-title {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 24px;
}

.footer-links a {
  display: block;
  color: rgba(255, 255, 255, 0.7);
  padding: 8px 0;
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--primary-light);
  padding-left: 8px;
}

.footer-contact-col {
  display: flex;
  flex-direction: column;
  gap: 16px;
}



.footer-contact-cards {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-contact-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  transition: all 0.3s ease;
  cursor: pointer;
  text-decoration: none;
}

.footer-contact-card:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.15);
  transform: translateX(4px);
}

.footer-contact-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: 10px;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.footer-contact-content h4 {
  font-size: 0.85rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 4px;
}

.footer-contact-main {
  font-size: 1rem;
  font-weight: 600;
  color: white;
  margin-bottom: 2px;
}

.footer-contact-sub {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.5);
}

.footer-contact li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  color: rgba(255, 255, 255, 0.7);
  padding: 10px 0;
}

.footer-contact li span {
  color: var(--primary-light);
  font-size: 1.125rem;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.875rem;
}

/* Page Header */
.page-header {
  background: linear-gradient(135deg, var(--bg-dark), var(--primary));
  color: white;
  padding: 160px 0 80px;
  text-align: center;
  position: relative;
}

.page-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M11 18c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm48 25c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm-43-7c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm63 31c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM34 90c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm56-76c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM12 86c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm28-65c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm23-11c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-6 60c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm29 22c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zM32 63c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm57-13c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-9-21c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM60 91c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM35 41c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM12 60c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2z' fill='%23ffffff' fill-opacity='0.03' fill-rule='evenodd'/%3E%3C/svg%3E");
}

.page-header h1 {
  font-size: 3rem;
  font-weight: 800;
  margin-bottom: 16px;
  position: relative;
}

.page-header p {
  font-size: 1.125rem;
  opacity: 0.9;
  position: relative;
}

/* About Page */
.about-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-image {
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

.about-image img {
  width: 100%;
  height: 400px;
  object-fit: cover;
}

.about-content h2 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 24px;
  color: var(--text-dark);
}

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

/* Timeline */
.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--primary), var(--primary-light));
  border-radius: 2px;
}

.timeline-item {
  display: flex;
  margin-bottom: 60px;
  position: relative;
}

.timeline-item:nth-child(even) {
  flex-direction: row-reverse;
}

.timeline-content {
  width: calc(50% - 40px);
  background: white;
  padding: 30px;
  border-radius: 16px;
  box-shadow: var(--shadow);
  position: relative;
}

.timeline-item:nth-child(odd) .timeline-content {
  margin-right: 40px;
}

.timeline-item:nth-child(even) .timeline-content {
  margin-left: 40px;
}

.timeline-date {
  position: absolute;
  top: -15px;
  background: var(--primary);
  color: white;
  padding: 6px 20px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.875rem;
}

.timeline-item:nth-child(odd) .timeline-date {
  right: 30px;
}

.timeline-item:nth-child(even) .timeline-date {
  left: 30px;
}

.timeline-content h4 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-dark);
  margin-top: 10px;
}

.timeline-content p {
  color: var(--text-gray);
  line-height: 1.7;
}

.timeline-dot {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 20px;
  background: var(--primary);
  border-radius: 50%;
  border: 4px solid white;
  box-shadow: var(--shadow);
  z-index: 1;
}

/* Team Grid */
.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
}

.team-card {
  text-align: center;
  background: white;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.team-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.team-avatar {
  width: 100%;
  height: 280px;
  object-fit: cover;
  background: linear-gradient(135deg, var(--bg-light), var(--border));
}

.team-info {
  padding: 24px;
}

.team-info h4 {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 4px;
  color: var(--text-dark);
}

.team-info p {
  color: var(--primary);
  font-size: 0.875rem;
}

/* Services Page */
.service-detail-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
  margin-bottom: 80px;
}

.service-detail-card {
  background: white;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border: 2px solid transparent;
}

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

.service-detail-header {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  padding: 40px;
  color: white;
  display: flex;
  align-items: center;
  gap: 20px;
}

.service-detail-icon {
  width: 70px;
  height: 70px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
}

.service-detail-header h3 {
  font-size: 1.5rem;
  font-weight: 700;
}

.service-detail-body {
  padding: 30px;
}

.service-detail-body ul {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.service-detail-body li {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-gray);
}

.service-detail-body li span {
  color: var(--primary);
  font-size: 1.25rem;
}

/* Process Section */
.process-steps {
  display: flex;
  justify-content: space-between;
  position: relative;
  margin-top: 60px;
}

.process-steps::before {
  content: '';
  position: absolute;
  top: 40px;
  left: 10%;
  right: 10%;
  height: 4px;
  background: var(--border);
  z-index: 0;
}

.process-step {
  text-align: center;
  position: relative;
  z-index: 1;
  flex: 1;
}

.process-number {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  font-weight: 800;
  color: white;
  margin: 0 auto 20px;
  box-shadow: 0 4px 15px rgba(30, 127, 78, 0.4);
}

.process-step h4 {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-dark);
}

.process-step p {
  color: var(--text-gray);
  font-size: 0.875rem;
  max-width: 150px;
  margin: 0 auto;
}

/* Contact Page */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 60px;
}

.contact-info {
  background: linear-gradient(135deg, var(--bg-dark), var(--primary));
  border-radius: 24px;
  padding: 50px;
  color: white;
}

.contact-info h3 {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 30px;
}

.contact-list {
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.contact-item {
  display: flex;
  gap: 20px;
}

.contact-icon {
  width: 50px;
  height: 50px;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.contact-item h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.contact-item p {
  opacity: 0.8;
  font-size: 0.95rem;
}

.contact-form {
  background: white;
  border-radius: 24px;
  padding: 50px;
  box-shadow: var(--shadow-xl);
}

.contact-form h3 {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 30px;
  color: var(--text-dark);
}

.form-group {
  margin-bottom: 24px;
}

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-dark);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 14px 20px;
  border: 2px solid var(--border);
  border-radius: 12px;
  font-size: 1rem;
  transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(30, 127, 78, 0.1);
}

.form-group textarea {
  min-height: 140px;
  resize: vertical;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.contact-form .btn-primary {
  width: 100%;
  padding: 16px;
}

/* Map Section */
.map-section {
  height: 400px;
  background: var(--bg-light);
  display: flex;
  align-items: center;
  justify-content: center;
  border-top: 1px solid var(--border);
}

.map-placeholder {
  text-align: center;
  color: var(--text-gray);
}

.map-placeholder p {
  margin-top: 16px;
}

/* OA Pages */
.oa-page {
  min-height: 100vh;
  background: linear-gradient(135deg, var(--bg-dark), #1a365d);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 20px;
}

.oa-login-card {
  background: white;
  border-radius: 24px;
  padding: 60px;
  width: 100%;
  max-width: 480px;
  box-shadow: var(--shadow-xl);
}

.oa-logo {
  text-align: center;
  margin-bottom: 40px;
}

.oa-logo-icon {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, var(--secondary), #60A5FA);
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-size: 2.5rem;
}

.oa-logo h1 {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text-dark);
}

.oa-logo p {
  color: var(--text-gray);
  margin-top: 8px;
}

.oa-form .form-group label {
  font-weight: 500;
}

.oa-form .btn-primary {
  width: 100%;
  margin-top: 10px;
  padding: 16px;
  font-size: 1.125rem;
}

.oa-back {
  text-align: center;
  margin-top: 24px;
}

.oa-back a {
  color: var(--secondary);
  font-weight: 500;
}

.oa-back a:hover {
  text-decoration: underline;
}

/* Dashboard */
.oa-dashboard {
  background: var(--bg-light);
  min-height: 100vh;
}

.oa-header {
  background: var(--bg-dark);
  color: white;
  padding: 0 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.oa-header-left {
  display: flex;
  align-items: center;
  gap: 30px;
}

.oa-header-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.25rem;
  font-weight: 700;
}

.oa-nav {
  display: flex;
  gap: 8px;
}

.oa-nav a {
  padding: 10px 20px;
  border-radius: 8px;
  color: rgba(255, 255, 255, 0.7);
  font-weight: 500;
  transition: var(--transition);
}

.oa-nav a:hover, .oa-nav a.active {
  background: rgba(255, 255, 255, 0.1);
  color: white;
}

.oa-header-right {
  display: flex;
  align-items: center;
  gap: 20px;
}

.oa-user {
  display: flex;
  align-items: center;
  gap: 12px;
}

.oa-avatar {
  width: 40px;
  height: 40px;
  background: var(--secondary);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
}

.oa-main {
  padding: 30px 40px;
  max-width: 1400px;
  margin: 0 auto;
}

.oa-welcome {
  margin-bottom: 30px;
}

.oa-welcome h2 {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text-dark);
}

.oa-welcome p {
  color: var(--text-gray);
  margin-top: 4px;
}

.oa-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 30px;
}

.oa-stat-card {
  background: white;
  border-radius: 16px;
  padding: 24px;
  display: flex;
  align-items: center;
  gap: 20px;
  box-shadow: var(--shadow);
}

.oa-stat-icon {
  width: 60px;
  height: 60px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
}

.oa-stat-icon.blue { background: rgba(59, 130, 246, 0.1); color: var(--secondary); }
.oa-stat-icon.green { background: rgba(30, 127, 78, 0.1); color: var(--primary); }
.oa-stat-icon.orange { background: rgba(245, 158, 11, 0.1); color: var(--accent); }
.oa-stat-icon.purple { background: rgba(139, 92, 246, 0.1); color: #8B5CF6; }

.oa-stat-info h4 {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text-dark);
}

.oa-stat-info p {
  color: var(--text-gray);
  font-size: 0.875rem;
}

.oa-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 30px;
}

.oa-card {
  background: white;
  border-radius: 16px;
  padding: 30px;
  box-shadow: var(--shadow);
}

.oa-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}

.oa-card-header h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-dark);
}

.oa-card-header a {
  color: var(--secondary);
  font-size: 0.875rem;
  font-weight: 500;
}

.oa-card-header a:hover {
  text-decoration: underline;
}

.todo-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.todo-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 16px;
  background: var(--bg-light);
  border-radius: 12px;
  transition: var(--transition);
}

.todo-item:hover {
  background: var(--border);
}

.todo-checkbox {
  width: 22px;
  height: 22px;
  border: 2px solid var(--border);
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
  transition: var(--transition);
}

.todo-item.completed .todo-checkbox {
  background: var(--primary);
  border-color: var(--primary);
}

.todo-item.completed .todo-checkbox::after {
  content: '✓';
  color: white;
  font-size: 0.875rem;
}

.todo-content {
  flex: 1;
}

.todo-content h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 4px;
}

.todo-item.completed .todo-content h4 {
  text-decoration: line-through;
  color: var(--text-gray);
}

.todo-content p {
  font-size: 0.875rem;
  color: var(--text-gray);
}

.todo-tag {
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 600;
}

.todo-tag.urgent { background: rgba(239, 68, 68, 0.1); color: #EF4444; }
.todo-tag.normal { background: rgba(59, 130, 246, 0.1); color: var(--secondary); }
.todo-tag.done { background: rgba(30, 127, 78, 0.1); color: var(--primary); }

.approval-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.approval-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px;
  background: var(--bg-light);
  border-radius: 12px;
  transition: var(--transition);
}

.approval-item:hover {
  background: var(--border);
}

.approval-icon {
  width: 48px;
  height: 48px;
  background: white;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.approval-content {
  flex: 1;
}

.approval-content h4 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-dark);
}

.approval-content p {
  font-size: 0.8rem;
  color: var(--text-gray);
}

.approval-btn {
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 0.875rem;
  font-weight: 600;
  transition: var(--transition);
}

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

.approval-btn.approve:hover {
  background: var(--primary-light);
}

.approval-btn.view {
  background: var(--bg-light);
  color: var(--text-dark);
  border: 1px solid var(--border);
}

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

/* Notice List */
.notice-list {
  display: flex;
  flex-direction: column;
}

.notice-item {
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 12px;
}

.notice-item:last-child {
  border-bottom: none;
}

.notice-dot {
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  flex-shrink: 0;
}

.notice-item h4 {
  flex: 1;
  font-size: 0.95rem;
  color: var(--text-dark);
  cursor: pointer;
  transition: var(--transition);
}

.notice-item h4:hover {
  color: var(--primary);
}

.notice-date {
  color: var(--text-gray);
  font-size: 0.8rem;
}

/* Quick Actions */
.quick-actions {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.quick-action {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 24px;
  background: var(--bg-light);
  border-radius: 16px;
  transition: var(--transition);
  cursor: pointer;
}

.quick-action:hover {
  background: var(--primary);
  color: white;
}

.quick-action-icon {
  width: 56px;
  height: 56px;
  background: white;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--primary);
  transition: var(--transition);
}

.quick-action:hover .quick-action-icon {
  background: rgba(255, 255, 255, 0.2);
  color: white;
}

.quick-action span {
  font-weight: 600;
  font-size: 0.95rem;
}

/* Scroll Animation */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive */
@media (max-width: 1200px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

@media (max-width: 992px) {
  .nav-menu {
    display: none;
  }

  .nav-dropdown {
    position: static;
  }

  .nav-dropdown-btn {
    color: rgba(255, 255, 255, 0.7);
    padding: 12px 0;
  }

  .nav-dropdown-content {
    position: static;
    transform: none;
    box-shadow: none;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    margin-top: 8px;
    padding: 8px 0;
  }

  .nav-dropdown-content a {
    color: rgba(255, 255, 255, 0.8);
    padding: 10px 16px;
  }

  .nav-dropdown-content a:hover {
    background: rgba(255, 255, 255, 0.1);
    color: white;
  }

  .nav-dropdown-divider {
    background: rgba(255, 255, 255, 0.1);
  }

  .nav-toggle {
    position: absolute;
    right: 20px;
    display: flex;
  }

  .hero-title {
    font-size: 3.5rem;
  }

  .hero-subtitle {
    font-size: 1.4rem;
  }

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

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

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

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

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

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

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

@media (max-width: 768px) {
  .section {
    padding: 60px 0;
  }

  .section-title {
    font-size: 2rem;
  }

  .hero-title {
    font-size: 2.8rem;
  }

  .hero-subtitle {
    font-size: 1.2rem;
  }

  .hero-content {
    padding: 0 24px;
  }

  .stats-grid {
    grid-template-columns: 1fr;
    padding: 30px;
  }

  .stat-number {
    font-size: 2.5rem;
  }

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

  .timeline::before {
    left: 20px;
  }

  .timeline-item,
  .timeline-item:nth-child(even) {
    flex-direction: row;
  }

  .timeline-content,
  .timeline-item:nth-child(odd) .timeline-content,
  .timeline-item:nth-child(even) .timeline-content {
    width: calc(100% - 60px);
    margin-left: 60px;
    margin-right: 0;
  }

  .timeline-date,
  .timeline-item:nth-child(odd) .timeline-date,
  .timeline-item:nth-child(even) .timeline-date {
    position: static;
    display: inline-block;
    margin-bottom: 12px;
  }

  .timeline-dot,
  .timeline-item:nth-child(odd) .timeline-dot,
  .timeline-item:nth-child(even) .timeline-dot {
    left: 20px;
  }

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

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

  .process-steps {
    flex-direction: column;
    gap: 40px;
  }

  .process-steps::before {
    display: none;
  }

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

  /* 手机端footer：两排布局，每行一个区块 */
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 15px;
  }

  .footer-grid > div {
    width: 100%;
  }

  /* 每个区块内的链接用grid排列成2x2 */
  .footer-links {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
  }

  .footer-links a {
    padding: 6px 0;
    font-size: 0.9rem;
    word-break: break-word;
  }

  .footer-contact-cards {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }

  .footer-contact-card {
    padding: 12px;
  }

  .footer-contact-icon {
    width: 36px;
    height: 36px;
    font-size: 1rem;
  }

  .footer-contact-content h4 {
    font-size: 0.75rem;
  }

  .footer-contact-main {
    font-size: 0.85rem;
  }

  .footer-contact-sub {
    font-size: 0.7rem;
  }

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

  .page-header h1 {
    font-size: 2rem;
  }

  .oa-stats {
    grid-template-columns: 1fr;
  }

  .oa-header {
    padding: 0 20px;
  }

  .oa-nav {
    display: none;
  }

  .oa-main {
    padding: 20px;
  }

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

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

  /* 移动端隐藏浮动二维码 */
  .qr-sidebar {
    display: none !important;
  }
}

/* ========================================
   浮动二维码侧边栏
   ======================================== */
.qr-sidebar {
  position: fixed;
  top: 50%;
  transform: translateY(-50%);
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.qr-sidebar-left {
  left: 20px;
}

.qr-sidebar-right {
  right: 20px;
}

/* 浮动Logo卡片 */
.floating-logo {
  position: fixed;
  left: 20px;
  top: 80px;
  z-index: 999;
  background: white;
  border-radius: 16px;
  padding: 12px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
  text-align: center;
  transition: all 0.3s ease;
  cursor: pointer;
  text-decoration: none;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.floating-logo:hover {
  transform: scale(1.05);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
}

.floating-logo img {
  width: 50px;
  height: 50px;
  border-radius: 8px;
  object-fit: cover;
}

.floating-logo h4 {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-dark);
  margin-top: 8px;
}

.floating-logo p {
  font-size: 10px;
  color: var(--text-gray);
  margin-top: 2px;
}

.qr-sidebar-item {
  background: white;
  border-radius: 16px;
  padding: 16px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
  text-align: center;
  transition: all 0.3s ease;
  cursor: pointer;
  position: relative;
}

.qr-sidebar-item:hover {
  transform: scale(1.05);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
}

.qr-sidebar-item img {
  width: 100px;
  height: 100px;
  border-radius: 8px;
  object-fit: cover;
}

.qr-sidebar-item h4 {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-dark);
  margin-top: 10px;
  margin-bottom: 4px;
}

.qr-sidebar-item p {
  font-size: 11px;
  color: var(--text-gray);
  line-height: 1.4;
}

.qr-sidebar-item .qr-tag {
  position: absolute;
  top: -8px;
  right: -8px;
  background: var(--primary);
  color: white;
  font-size: 10px;
  font-weight: 600;
  padding: 4px 8px;
  border-radius: 10px;
}

/* 微信咨询按钮 */
.qr-sidebar-item.wechat {
  background: linear-gradient(135deg, #07C160, #06AD56);
  color: white;
  padding: 20px 16px;
}

.qr-sidebar-item.wechat h4 {
  color: white;
  margin-top: 12px;
}

.qr-sidebar-item.wechat p {
  color: rgba(255, 255, 255, 0.9);
}

.qr-sidebar-item.wechat .wechat-icon {
  font-size: 40px;
  margin-bottom: 4px;
}

/* 教育考试院页面重要提示（红字） */
.important-notice {
  color: #dc3545;
  font-weight: 600;
  font-size: 1.1rem;
  text-align: center;
  padding: 20px;
  background: rgba(220, 53, 69, 0.1);
  border: 2px solid rgba(220, 53, 69, 0.3);
  border-radius: 12px;
  margin: 20px 0;
}