/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: #f5f7fa;
    color: #333;
    line-height: 1.6;
    padding: 20px 0;
}

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

/* 按钮样式 */
.btn {
    padding: 8px 16px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.2s ease;
    font-size: 14px;
}

.btn-primary {
    background-color: #4285f4;
    color: white;
}

.btn-primary:hover {
    background-color: #3367d6;
}

.btn-secondary {
    background-color: #f1f3f4;
    color: #333;
}

.btn-secondary:hover {
    background-color: #e8eaed;
}

.btn-danger {
    background-color: #ea4335;
    color: white;
}

.btn-danger:hover {
    background-color: #d93025;
}

/* 卡片样式 */
.card {
    background: white;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    padding: 20px;
    margin-bottom: 16px;
}

/* 输入框样式 */
.input-field {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid #dadce0;
    border-radius: 8px;
    font-size: 15px;
    transition: border 0.2s ease;
}

.input-field:focus {
    outline: none;
    border-color: #4285f4;
    box-shadow: 0 0 0 2px rgba(66, 133, 244, 0.2);
}

/* 标题样式 */
h1, h2, h3 {
    margin-bottom: 16px;
    color: #202124;
}

h1 {
    font-size: 26px;
}

h2 {
    font-size: 22px;
}

h3 {
    font-size: 18px;
}

/* 链接样式 */
a {
    color: #4285f4;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .flex-wrap {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
    }
}