/* 全局样式 */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Microsoft YaHei', '微软雅黑', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
}

header {
    background-color: #2c3e50;
    padding: 1rem 0;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.logo img {
    height: 40px;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

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

.nav-links li {
    margin-left: 1.5rem;
}

.nav-links a {
    color: #fff;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-links a:hover, .nav-links a.active {
    color: #3498db;
}

main {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 1rem;
}

/* 表单样式 */
.feedback-container {
    background-color: #fff;
    border-radius: 8px;
    padding: 2rem;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.feedback-container h2 {
    color: #2c3e50;
    margin-bottom: 1rem;
    text-align: center;
}

.feedback-intro {
    text-align: center;
    margin-bottom: 2rem;
    color: #666;
}

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

label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: #2c3e50;
}

input, select, textarea {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-family: inherit;
    font-size: 1rem;
    transition: border 0.3s;
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: #3498db;
    box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.2);
}

small {
    color: #7f8c8d;
    font-size: 0.85rem;
}

.form-actions {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

.btn-submit, .btn-reset {
    padding: 0.8rem 1.5rem;
    border: none;
    border-radius: 4px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.3s;
}

.btn-submit {
    background-color: #3498db;
    color: white;
    flex: 2;
}

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

.btn-reset {
    background-color: #ecf0f1;
    color: #7f8c8d;
    flex: 1;
}

.btn-reset:hover {
    background-color: #dde4e6;
}

/* 联系信息区域 */
.contact-info {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid #eee;
}

.contact-info h3 {
    color: #2c3e50;
    margin-bottom: 1rem;
}

.contact-info p {
    margin-bottom: 0.5rem;
    color: #666;
}

footer {
    background-color: #2c3e50;
    color: #ecf0f1;
    text-align: center;
    padding: 1.5rem 0;
    margin-top: 2rem;
}