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

body {
    font-family: Arial, sans-serif;
    background-color: white;
    color: #333;
    line-height: 1.6;
}

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

/* 首屏部分 */
.hero {
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: background-color 0.3s ease;
}

.center-text h1 {
    font-size: 4rem;
    color: #333;
    transition: color 0.3s ease;
}

.center-text h1:hover {
    color: #2ecc71;
}

.center-text h1:hover ~ .hero,
.center-text:hover ~ .hero,
.hero .center-text:hover ~ * {
    background-color: rgba(46, 204, 113, 0.1);
}

/* 内容部分 */
.content-section {
    padding: 80px 0;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.content-section:nth-child(even) {
    background-color: #f9f9f9;
}

h2 {
    font-size: 2.5rem;
    margin-bottom: 30px;
    color: #2c3e50;
}

p {
    font-size: 1.2rem;
    margin-bottom: 20px;
}

/* 服务部分 */
.services {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.service-item {
    padding: 20px;
    background: white;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.service-item h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: #34495e;
}

/* 页脚 */
footer {
    background-color: #2c3e50;
    color: white;
    padding: 20px 0;
    text-align: center;
}

/* 按钮组样式 */
.button-group {
    display: flex;
    gap: 50px;
    flex-wrap: wrap;
    justify-content: center;
    margin-top: 30px;
}

.custom-btn {
    padding: 12px 25px;
    font-size: 1.1rem;
    border: none;
    border-radius: 5px;
    background-color: #2ecc71;
    color: white;
    cursor: pointer;
    transition: all 0.3s ease;
}

.custom-btn:hover {
    background-color: #27ae60;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(46, 204, 113, 0.3);
}

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

.section-title {
    text-align: center;
    margin-bottom: 40px;
    position: relative;
    cursor: help;
}

.tooltip {
    display: none;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    background-color: rgba(255, 223, 126, 0.9);
    color: #333;
    padding: 10px 20px;
    border-radius: 5px;
    font-size: 1rem;
    white-space: nowrap;
    z-index: 100;
    margin-top: -50px;
    bottom: 100%;
}

.section-title:hover + .tooltip {
    display: block;
}

/* 图片显示区域样式 */
.image-container {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.image-container img {
    max-width: 90%;
    max-height: 90%;
    object-fit: contain;
}

.close-btn {
    position: absolute;
    top: 20px;
    right: 20px;
    background: none;
    border: none;
    color: white;
    font-size: 30px;
    cursor: pointer;
    padding: 10px;
}

.close-btn:hover {
    color: #2ecc71;
}

.button-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
}

.button-text {
    margin: 0;
    font-size: 0.9rem;
    color: #666;
}

.privacy-notice {
    text-align: center;
    font-size: 0.8rem;
    color: #666;
    margin-top: 40px;
    font-style: italic;
}