/* 全局样式 */
:root {
  --primary-color: #1e88e5;
  --primary-dark: #1565c0;
  --primary-light: #bbdefb;
  --secondary-color: #26a69a;
  --accent-color: #ff5722;
  --text-dark: #333333;
  --text-light: #757575;
  --background-light: #f5f5f5;
  --background-white: #ffffff;
  --border-color: #e0e0e0;
  --success-color: #4caf50;
  --warning-color: #ff9800;
  --error-color: #f44336;
  --shadow-light: 0 2px 10px rgba(0, 0, 0, 0.1);
  --shadow-medium: 0 4px 20px rgba(0, 0, 0, 0.15);
  --transition-fast: 0.3s;
  --transition-normal: 0.5s;
  --border-radius: 8px;
  --header-height: 80px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Noto Sans SC', sans-serif;
}

html {
  scroll-behavior: smooth;
}

body {
  color: var(--text-dark);
  background-color: var(--background-light);
  line-height: 1.6;
}

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

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 15px;
}

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

a:hover {
  color: var(--primary-dark);
}

ul {
  list-style: none;
}

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

button {
  cursor: pointer;
  border: none;
  outline: none;
  font-size: 16px;
  border-radius: var(--border-radius);
  transition: all var(--transition-fast);
}

.section-title {
  font-size: 36px;
  text-align: center;
  margin-bottom: 15px;
  color: var(--primary-dark);
}

.section-subtitle {
  font-size: 18px;
  text-align: center;
  margin-bottom: 50px;
  color: var(--text-light);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.primary-btn {
  background-color: var(--primary-color);
  color: white;
  padding: 12px 24px;
  border-radius: var(--border-radius);
  font-weight: 500;
  box-shadow: var(--shadow-light);
  transition: all var(--transition-fast);
}

.primary-btn:hover {
  background-color: var(--primary-dark);
  box-shadow: var(--shadow-medium);
  transform: translateY(-2px);
}

.primary-btn:active {
  transform: translateY(0);
}

.large-btn {
  padding: 15px 30px;
  font-size: 18px;
}

/* 导航栏样式 */
.main-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: var(--background-white);
  box-shadow: var(--shadow-light);
  z-index: 1000;
  transition: all var(--transition-fast);
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: var(--header-height);
}

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

.logo img {
  height: 50px;
  margin-right: 15px;
}

.logo h1 {
  font-size: 20px;
  margin: 0;
  color: var(--primary-dark);
}

#main-nav ul {
  display: flex;
}

#main-nav li {
  margin: 0 15px;
}

#main-nav a {
  color: var(--text-dark);
  font-weight: 500;
  padding: 10px 0;
  position: relative;
}

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

#main-nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary-color);
  transition: width var(--transition-fast);
}

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

.nav-buttons {
  display: flex;
  align-items: center;
}

.login-btn {
  margin-right: 10px;
}

.menu-toggle {
  display: none;
  background: none;
  font-size: 24px;
  color: var(--text-dark);
}

/* 响应式导航 */
@media (max-width: 992px) {
  #main-nav {
    position: fixed;
    top: var(--header-height);
    left: -100%;
    width: 100%;
    height: calc(100vh - var(--header-height));
    background-color: var(--background-white);
    transition: left var(--transition-normal);
    box-shadow: var(--shadow-medium);
    z-index: 999;
  }
  
  #main-nav.active {
    left: 0;
  }
  
  #main-nav ul {
    flex-direction: column;
    padding: 20px;
  }
  
  #main-nav li {
    margin: 15px 0;
  }
  
  #main-nav a {
    display: block;
    font-size: 18px;
  }
  
  .menu-toggle {
    display: block;
  }
}

/* 主横幅样式 */
.main-banner {
  position: relative;
  height: 100vh;
  overflow: hidden;
  margin-top: var(--header-height);
}

.slides-container {
  height: 100%;
  width: 100%;
  position: relative;
}

.slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 1s ease-in-out;
  display: flex;
  align-items: center;
  justify-content: center;
}

.slide.active {
  opacity: 1;
}

.slide-overlay {
  text-align: center;
  padding: 0 20px;
  color: white;
  background-color: rgba(0, 0, 0, 0.5);
  border-radius: var(--border-radius);
  padding: 40px;
  max-width: 800px;
}

.slide-overlay h1 {
  font-size: 48px;
  margin-bottom: 20px;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

.slide-overlay p {
  font-size: 20px;
  margin-bottom: 30px;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
}

.cta-button {
  display: inline-block;
  background-color: var(--primary-color);
  color: white;
  padding: 15px 30px;
  border-radius: var(--border-radius);
  font-size: 18px;
  font-weight: 500;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  transition: all var(--transition-fast);
}

.cta-button:hover {
  background-color: var(--primary-dark);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
  transform: translateY(-3px);
  color: white;
}

.cta-button:active {
  transform: translateY(-1px);
}

/* 模态框样式 */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 2000;
  justify-content: center;
  align-items: center;
}

.modal-content {
  background-color: white;
  border-radius: 10px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
  width: 90%;
  max-width: 500px;
  animation: modalFadeIn 0.3s;
}

@keyframes modalFadeIn {
  from {
    opacity: 0;
    transform: translateY(-50px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 25px;
  border-bottom: 1px solid var(--border-color);
}

.modal-header h2 {
  margin: 0;
  font-size: 24px;
  color: var(--primary-dark);
}

.close-btn {
  background: none;
  font-size: 22px;
  color: var(--text-light);
  cursor: pointer;
}

.close-btn:hover {
  color: var(--error-color);
}

.modal-body {
  padding: 25px;
}

/* 表单样式 */
.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
}

.form-group input {
  width: 100%;
  padding: 12px 15px;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  font-size: 16px;
}

.form-group input:focus {
  border-color: var(--primary-color);
  outline: none;
  box-shadow: 0 0 0 2px var(--primary-light);
}

.form-group.checkbox {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.forgot-password {
  font-size: 14px;
}

.submit-btn {
  width: 100%;
  padding: 12px;
  font-size: 16px;
  margin-top: 10px;
}

.register-link {
  text-align: center;
  margin-top: 20px;
  font-size: 14px;
}
/* 核心价值区域样式 */
.core-values {
  padding: 80px 0;
  background-color: var(--background-white);
}

.values-container {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.value-card {
  background-color: var(--background-white);
  border-radius: var(--border-radius);
  padding: 30px;
  box-shadow: var(--shadow-light);
  transition: all var(--transition-fast);
  border-top: 3px solid var(--primary-color);
}

.value-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-medium);
}

.value-icon {
  font-size: 36px;
  color: var(--primary-color);
  margin-bottom: 20px;
}

.value-card h3 {
  font-size: 20px;
  margin-bottom: 15px;
  color: var(--primary-dark);
}

.value-card p {
  color: var(--text-light);
  margin-bottom: 0;
}

/* 评价机制标签页样式 */
.eval-tabs {
  margin-top: 50px;
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow-light);
  background-color: var(--background-white);
}

.tab-header {
  display: flex;
  background-color: var(--primary-light);
}

.tab-btn {
  flex: 1;
  padding: 15px;
  background: none;
  font-weight: 500;
  color: var(--text-dark);
  border-bottom: 3px solid transparent;
  border-radius: 0;
}

.tab-btn:hover {
  background-color: rgba(255, 255, 255, 0.5);
}

.tab-btn.active {
  background-color: white;
  border-bottom-color: var(--primary-color);
  color: var(--primary-dark);
}

.tab-content {
  padding: 30px;
}

.tab-pane {
  display: none;
}

.tab-pane.active {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}

.indicator-card {
  background-color: var(--background-light);
  border-radius: var(--border-radius);
  padding: 20px;
  box-shadow: var(--shadow-light);
}

.indicator-card h3 {
  font-size: 18px;
  display: flex;
  align-items: center;
  color: var(--primary-dark);
}

.indicator-card h3 i {
  margin-right: 10px;
  color: var(--primary-color);
}

.indicator-card ul {
  margin-top: 15px;
  padding-left: 15px;
}

.indicator-card ul li {
  margin-bottom: 8px;
  position: relative;
  padding-left: 15px;
  line-height: 1.5;
}

.indicator-card ul li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--primary-color);
}

.indicator-card ul li em {
  color: var(--text-light);
  font-style: italic;
  display: block;
  margin-top: 5px;
  font-size: 14px;
}

/* 参与对象样式 */
.participants {
  padding: 80px 0;
  background-color: var(--background-light);
}

.participants-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 30px;
}

.participant-card {
  background-color: var(--background-white);
  border-radius: var(--border-radius);
  padding: 30px;
  box-shadow: var(--shadow-light);
  max-width: 350px;
  flex: 1 1 300px;
  transition: all var(--transition-fast);
}

.participant-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-medium);
}

.participant-icon {
  font-size: 40px;
  color: var(--primary-color);
  text-align: center;
  margin-bottom: 20px;
}

.participant-card h3 {
  text-align: center;
  font-size: 22px;
  margin-bottom: 20px;
  color: var(--primary-dark);
}

.participant-card ul {
  margin-bottom: 20px;
  padding-left: 20px;
}

.participant-card ul li {
  margin-bottom: 10px;
  position: relative;
  padding-left: 15px;
  line-height: 1.5;
}

.participant-card ul li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--primary-color);
}

.participant-note {
  background-color: var(--primary-light);
  padding: 15px;
  border-radius: var(--border-radius);
  font-size: 14px;
}

/* 时间线样式 */
.evaluation-process {
  padding: 80px 0;
  background-color: var(--background-white);
}

.timeline {
  position: relative;
  max-width: 800px;
  margin: 50px auto 0;
}

.timeline::after {
  content: '';
  position: absolute;
  width: 4px;
  background-color: var(--primary-light);
  top: 0;
  bottom: 0;
  left: 20px;
  border-radius: 2px;
}

.timeline-item {
  padding: 0 0 30px 60px;
  position: relative;
}

.timeline-marker {
  position: absolute;
  left: 0;
  width: 40px;
  height: 40px;
  background-color: var(--primary-color);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  z-index: 1;
}

.timeline-content {
  background-color: var(--background-white);
  padding: 20px;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-light);
  border-left: 4px solid var(--primary-color);
}

.timeline-content h3 {
  color: var(--primary-dark);
  margin-bottom: 10px;
}

.timeline-date {
  color: var(--text-light);
  font-size: 14px;
  margin-bottom: 15px;
  font-style: italic;
}

.timeline-content ul {
  padding-left: 20px;
}

.timeline-content ul li {
  margin-bottom: 8px;
  position: relative;
  padding-left: 15px;
}

.timeline-content ul li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--primary-color);
}

/* 评价结果样式 */
.evaluation-results {
  padding: 80px 0;
  background-color: var(--background-light);
}

.results-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.result-card {
  background-color: var(--background-white);
  border-radius: var(--border-radius);
  padding: 30px;
  box-shadow: var(--shadow-light);
  transition: all var(--transition-fast);
}

.result-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-medium);
}

.result-icon {
  font-size: 36px;
  color: var(--primary-color);
  margin-bottom: 20px;
  text-align: center;
}

.result-card h3 {
  font-size: 20px;
  margin-bottom: 15px;
  color: var(--primary-dark);
  text-align: center;
}

.result-card ul {
  padding-left: 20px;
}

.result-card ul li {
  margin-bottom: 10px;
  position: relative;
  padding-left: 15px;
  line-height: 1.5;
}

.result-card ul li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--primary-color);
}

.cta-container {
  text-align: center;
  margin-top: 50px;
}

.deadline {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 20px;
}

/* 轮播控制点样式 */
.banner-controls {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  z-index: 10;
}

.banner-dot {
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.5);
  margin: 0 8px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.banner-dot:hover {
  background-color: rgba(255, 255, 255, 0.8);
}

.banner-dot.active {
  background-color: white;
  transform: scale(1.2);
}

/* 页脚样式 */
.main-footer {
  background-color: #2c3e50;
  color: white;
  padding-top: 60px;
}

.footer-top {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  margin-bottom: 40px;
}

.footer-logo {
  display: flex;
  align-items: center;
  margin-bottom: 30px;
}

.footer-logo img {
  height: 60px;
  margin-right: 20px;
}

.organizer p {
  font-size: 14px;
  margin-bottom: 5px;
}

.organizer h3 {
  font-size: 18px;
  margin: 0;
}

.footer-columns {
  display: flex;
  flex-wrap: wrap;
  gap: 30px;
}

.footer-column {
  min-width: 200px;
}

.footer-column h3 {
  font-size: 18px;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 10px;
}

.footer-column h3::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 40px;
  height: 2px;
  background-color: var(--primary-color);
}

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

.footer-column ul li a {
  color: rgba(255, 255, 255, 0.7);
  transition: color var(--transition-fast);
}

.footer-column ul li a:hover {
  color: white;
}

.footer-divider {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  margin-bottom: 40px;
}

.contact-us {
  margin-bottom: 40px;
}

.contact-us h3 {
  font-size: 20px;
  margin-bottom: 15px;
}

.contact-methods {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin-top: 20px;
}

.contact-method {
  display: flex;
  align-items: center;
  margin-right: 30px;
}

.contact-method i {
  font-size: 20px;
  margin-right: 10px;
  color: var(--primary-light);
}

.footer-bottom {
  text-align: center;
  padding: 20px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 14px;
  color: rgba(255, 255, 255, 0.5);
}

/* 响应式设计 */
@media (max-width: 992px) {
  .section-title {
    font-size: 30px;
  }
  
  .slide-overlay h1 {
    font-size: 36px;
  }
  
  .slide-overlay p {
    font-size: 18px;
  }