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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
    background-image: url('doc/背景.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    background-repeat: no-repeat;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    position: relative;
}

/* 添加半透明遮罩层，使内容更清晰 */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.3);
    z-index: -1;
}

.container {
    max-width: 1200px;
    width: 100%;
}

header {
    text-align: center;
    color: white;
    margin-bottom: 60px;
}

/* Logo样式 */
.logo {
    margin-bottom: 20px;
}

.logo img {
    max-width: 120px;
    max-height: 120px;
    width: auto;
    height: auto;
    object-fit: contain;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
}

header h1 {
    font-size: 3rem;
    margin-bottom: 10px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
}

.subtitle {
    font-size: 1.2rem;
    opacity: 0.95;
    text-shadow: 1px 1px 3px rgba(0,0,0,0.5);
}

/* 联系信息样式 */
.contact-info {
    margin-top: 20px;
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

.phone-btn,
.wechat-btn {
    font-size: 1.2rem;
    font-weight: 600;
    color: #fff;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
    background: rgba(255, 255, 255, 0.2);
    padding: 12px 25px;
    border-radius: 25px;
    border: 2px solid rgba(255, 255, 255, 0.4);
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: inherit;
}

.phone-btn:hover,
.wechat-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.6);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
}

.services {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    margin-bottom: 60px;
}

.service-card {
    background: white;
    border-radius: 20px;
    padding: 40px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.3);
}

.icon {
    font-size: 4rem;
    margin-bottom: 20px;
}

.service-card h2 {
    font-size: 1.8rem;
    color: #333;
    margin-bottom: 15px;
}

.service-card p {
    color: #666;
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: 25px;
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-decoration: none;
    border-radius: 25px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn:hover {
    transform: scale(1.05);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

footer {
    text-align: center;
    color: white;
    font-size: 0.9rem;
    opacity: 0.8;
}

/* 弹窗样式 */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    justify-content: center;
    align-items: center;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-content {
    background: white;
    padding: 30px;
    border-radius: 20px;
    text-align: center;
    position: relative;
    max-width: 400px;
    width: 90%;
    box-shadow: 0 10px 40px rgba(0,0,0,0.3);
    animation: slideIn 0.3s ease;
}

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

.close {
    position: absolute;
    right: 15px;
    top: 15px;
    font-size: 28px;
    font-weight: bold;
    color: #999;
    cursor: pointer;
    transition: color 0.3s ease;
}

.close:hover {
    color: #333;
}

.modal-content h3 {
    color: #333;
    margin-bottom: 20px;
    font-size: 1.5rem;
}

.phone-number {
    font-size: 2rem;
    color: #667eea;
    font-weight: bold;
    margin: 20px 0;
    letter-spacing: 2px;
}

.call-btn {
    display: inline-block;
    padding: 12px 30px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-decoration: none;
    border-radius: 25px;
    font-weight: 600;
    margin-top: 10px;
    transition: all 0.3s ease;
}

.call-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

.qr-code {
    max-width: 250px;
    width: 100%;
    height: auto;
    border-radius: 10px;
    border: 3px solid #f0f0f0;
    margin-top: 10px;
}

@media (max-width: 768px) {
    header h1 {
        font-size: 1.8rem;
    }

    .subtitle {
        font-size: 0.95rem;
    }

    .phone-btn,
    .wechat-btn {
        font-size: 0.95rem;
        padding: 10px 18px;
    }

    .logo img {
        max-width: 80px;
        max-height: 80px;
    }

    .services {
        grid-template-columns: 1fr;
        gap: 25px;
        margin-bottom: 40px;
    }

    .service-card {
        padding: 25px;
    }

    .service-card h2 {
        font-size: 1.5rem;
    }

    .icon {
        font-size: 3rem;
    }

    .modal-content {
        padding: 25px;
        width: 95%;
    }

    .phone-number {
        font-size: 1.5rem;
    }

    .qr-code {
        max-width: 200px;
    }
}

/* 超小屏幕优化 */
@media (max-width: 480px) {
    header h1 {
        font-size: 1.5rem;
    }

    .subtitle {
        font-size: 0.9rem;
    }

    .logo img {
        max-width: 70px;
        max-height: 70px;
    }

    .phone-btn,
    .wechat-btn {
        font-size: 0.9rem;
        padding: 8px 15px;
    }

    .service-card {
        padding: 20px;
    }

    .service-card h2 {
        font-size: 1.3rem;
    }

    .icon {
        font-size: 2.5rem;
    }
}