/* 基础样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    background-color: #f5f5f5;
    color: #333;
    padding: 20px;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

header {
    background: #2c3e50;
    color: white;
    padding: 30px 20px;
    text-align: center;
}

header h1 {
    margin-bottom: 10px;
    font-size: 2.2em;
}

header p {
    opacity: 0.9;
    font-size: 1.1em;
}

main {
    padding: 30px;
}

.form-group {
    margin-bottom: 20px;
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #2c3e50;
}

input[type="text"],
input[type="email"],
input[type="tel"],
textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 16px;
    transition: border 0.3s;
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="tel"]:focus,
textarea:focus {
    border-color: #3498db;
    outline: none;
    box-shadow: 0 0 5px rgba(52, 152, 219, 0.3);
}

textarea {
    resize: vertical;
    min-height: 120px;
}

.form-actions {
    display: flex;
    gap: 15px;
    margin-top: 30px;
}

button {
    padding: 12px 25px;
    border: none;
    border-radius: 4px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    flex: 1;
}

.submit-btn {
    background: #3498db;
    color: white;
}

.submit-btn:hover {
    background: #2980b9;
}

.reset-btn {
    background: #e74c3c;
    color: white;
}

.reset-btn:hover {
    background: #c0392b;
}

.status-message {
    padding: 15px;
    margin-bottom: 20px;
    border-radius: 4px;
    display: none;
}

.status-message.success {
    background: #d4edda;
    color: #155724;
    display: block;
}

.status-message.error {
    background: #f8d7da;
    color: #721c24;
    display: block;
}

footer {
    text-align: center;
    padding: 20px;
    background: #ecf0f1;
    color: #7f8c8d;
    font-size: 0.9em;
}

/* 响应式设计 */
@media (max-width: 600px) {
    .form-actions {
        flex-direction: column;
    }
    
    button {
        width: 100%;
    }
}