/* 小帮菜官网样式 */

/* 全局样式 */
:root {
  --primary-color: #2ecc71;
  --secondary-color: #27ae60;
  --dark-color: #2c3e50;
  --light-color: #ecf0f1;
  --danger-color: #e74c3c;
  --warning-color: #f39c12;
  --success-color: #27ae60;
  --info-color: #3498db;
  --font-main: 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --transition-speed: 0.3s;
}

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

body {
  font-family: var(--font-main);
  line-height: 1.6;
  color: var(--dark-color);
  background-color: #f8f9fa;
  overflow-x: hidden;
}

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

a:hover {
  color: var(--secondary-color);
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 15px;
}

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

.text-left {
  text-align: left;
}

.text-right {
  text-align: right;
}

/* 头部样式 */
.header {
  background-color: white;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
}

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

.logo img {
  height: 50px;
  margin-right: 10px;
}

.logo h1 {
  font-size: 1.8rem;
  color: var(--primary-color);
  margin: 0;
}

.nav-links {
  display: flex;
  list-style: none;
}

.nav-links li {
  margin-left: 2rem;
}

.nav-links a {
  color: var(--dark-color);
  font-weight: 500;
  transition: color var(--transition-speed);
}

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

/* 英雄部分 */
.hero {
  padding: 120px 0 80px;
  background: linear-gradient(to right, rgba(46, 204, 113, 0.9), rgba(39, 174, 96, 0.9)), url('../img/hero-bg.jpg');
  background-size: cover;
  color: white;
  text-align: center;
}

.hero h2 {
  font-size: 3rem;
  margin-bottom: 1.5rem;
}

.hero p {
  font-size: 1.2rem;
  max-width: 700px;
  margin: 0 auto 2rem;
}

.btn {
  display: inline-block;
  padding: 0.8rem 1.5rem;
  background-color: var(--primary-color);
  color: white;
  border-radius: 5px;
  transition: background-color var(--transition-speed);
  border: none;
  cursor: pointer;
  font-weight: 500;
}

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

.btn-outline {
  background-color: transparent;
  border: 2px solid white;
}

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

/* 部分样式 */
.section {
  padding: 5rem 0;
}

.section-title {
  text-align: center;
  margin-bottom: 3rem;
}

.section-title h2 {
  font-size: 2.5rem;
  color: var(--dark-color);
  margin-bottom: 1rem;
}

.section-title p {
  font-size: 1.1rem;
  color: #666;
  max-width: 700px;
  margin: 0 auto;
}

/* 特性卡片 */
.card-container {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2rem;
  margin-top: 2rem;
}

.card {
  background-color: white;
  border-radius: 8px;
  box-shadow: 0 5px 15px rgba(0,0,0,0.1);
  overflow: hidden;
  transition: transform var(--transition-speed);
  flex: 1 1 300px;
  max-width: 350px;
}

.card:hover {
  transform: translateY(-5px);
}

.card-header {
  background-color: var(--primary-color);
  color: white;
  padding: 1.5rem;
  text-align: center;
}

.card-body {
  padding: 1.5rem;
}

.card-title {
  font-size: 1.3rem;
  margin-bottom: 1rem;
  color: var(--dark-color);
}

.card-text {
  color: #666;
  margin-bottom: 1rem;
}

/* 功能列表 */
.feature-list {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
}

.feature-item {
  flex: 1 1 calc(50% - 1rem);
  display: flex;
  margin-bottom: 1.5rem;
}

.feature-icon {
  width: 60px;
  height: 60px;
  background-color: rgba(46, 204, 113, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 1rem;
  flex-shrink: 0;
}

.feature-icon i {
  color: var(--primary-color);
  font-size: 24px;
}

.feature-content h3 {
  margin-bottom: 0.5rem;
  color: var(--dark-color);
}

.feature-content p {
  color: #666;
}

/* 图表和图片区域 */
.image-container {
  text-align: center;
  margin: 2rem 0;
  padding: 1rem;
  background-color: #f8f9fa;
  border-radius: 8px;
}

.image-container img {
  max-width: 100%;
  border-radius: 8px;
  box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.chart-container {
  background-color: white;
  border-radius: 8px;
  box-shadow: 0 5px 15px rgba(0,0,0,0.1);
  padding: 1.5rem;
  margin: 2rem 0;
  height: 400px;
}

/* 表格样式 */
.table-container {
  overflow-x: auto;
  margin: 2rem 0;
}

table {
  width: 100%;
  border-collapse: collapse;
}

table th, table td {
  border: 1px solid #ddd;
  padding: 12px;
  text-align: left;
}

table th {
  background-color: var(--primary-color);
  color: white;
}

table tr:nth-child(even) {
  background-color: #f8f9fa;
}

/* 联系表单 */
.contact-form {
  max-width: 600px;
  margin: 0 auto;
  background-color: white;
  padding: 2rem;
  border-radius: 8px;
  box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
}

.form-control {
  width: 100%;
  padding: 0.8rem;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-family: inherit;
  font-size: 1rem;
}

.form-control:focus {
  outline: none;
  border-color: var(--primary-color);
}

textarea.form-control {
  resize: vertical;
  min-height: 150px;
}

/* 页脚样式 */
.footer {
  background-color: var(--dark-color);
  color: white;
  padding: 3rem 0;
}

.footer-content {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
}

.footer-column {
  flex: 1 1 250px;
}

.footer-column h3 {
  margin-bottom: 1.5rem;
  color: var(--light-color);
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.8rem;
}

.footer-links a {
  color: #bbb;
  transition: color var(--transition-speed);
}

.footer-links a:hover {
  color: white;
}

.copyright {
  text-align: center;
  padding-top: 2rem;
  margin-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.1);
  color: #bbb;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .navbar {
    flex-direction: column;
    padding: 1rem;
  }
  
  .nav-links {
    margin-top: 1rem;
  }
  
  .nav-links li {
    margin-left: 1rem;
    margin-right: 1rem;
  }
  
  .hero h2 {
    font-size: 2rem;
  }
  
  .feature-item {
    flex: 1 1 100%;
  }
  
  .card {
    flex: 1 1 100%;
    max-width: 100%;
  }
}

/* iframe 样式 */
.iframe-container {
  width: 100%;
  overflow: hidden;
  border: none;
}

.iframe-container iframe {
  width: 100%;
  border: none;
  overflow: hidden;
}