/* 基础重置样式和全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #fff;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* 容器样式 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    width: 100%;
    box-sizing: border-box;
    overflow-x: hidden;
}

/* 主要内容区域 */
.pg-base__main {
    flex: 1;
    padding: 2rem 0;
}

/* 等级徽章样式 */
.level-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.25rem 0.5rem;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.level-badge--free {
    background-color: #e9ecef;
    color: #6c757d;
}

.level-badge--basic {
    background-color: #d4edda;
    color: #155724;
}

.level-badge--professional {
    background-color: #d1ecf1;
    color: #0c5460;
}

.level-badge--enterprise {
    background-color: #f8d7da;
    color: #721c24;
}

.level-badge--guest {
    background-color: #fff3cd;
    color: #856404;
}

/* 消息样式 */
.pg-base__messages {
    background-color: #f8f9fa;
    border-bottom: 1px solid #dee2e6;
}

.alert {
    padding: 0.75rem 1rem;
    margin-bottom: 0.5rem;
    border: 1px solid transparent;
    border-radius: 0.25rem;
}

.alert--success {
    color: #155724;
    background-color: #d4edda;
    border-color: #c3e6cb;
}

.alert--error {
    color: #721c24;
    background-color: #f8d7da;
    border-color: #f5c6cb;
}

.alert--warning {
    color: #856404;
    background-color: #fff3cd;
    border-color: #ffeaa7;
}

.alert--info {
    color: #0c5460;
    background-color: #d1ecf1;
    border-color: #bee5eb;
}

/* 按钮基础样式 */
.btn {
    display: inline-block;
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    font-weight: 500;
    text-align: center;
    text-decoration: none;
    border: 1px solid transparent;
    border-radius: 0.375rem;
    cursor: pointer;
    transition: all 0.2s;
}

.btn--primary {
    color: #fff;
    background-color: #2563eb;
    border-color: #2563eb;
}

.btn--primary:hover {
    background-color: #1d4ed8;
    border-color: #1d4ed8;
}

.btn--secondary {
    color: #374151;
    background-color: #f3f4f6;
    border-color: #d1d5db;
}

.btn--secondary:hover {
    background-color: #e5e7eb;
    border-color: #9ca3af;
}

.btn--outline {
    color: #2563eb;
    background-color: transparent;
    border-color: #2563eb;
}

.btn--outline:hover {
    color: #fff;
    background-color: #2563eb;
}

/* 表单基础样式 */
.form-group {
    margin-bottom: 1rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: #374151;
}

.form-control {
    display: block;
    width: 100%;
    padding: 0.5rem 0.75rem;
    font-size: 0.875rem;
    line-height: 1.5;
    color: #374151;
    background-color: #fff;
    border: 1px solid #d1d5db;
    border-radius: 0.375rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-control:focus {
    outline: none;
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

/* 卡片样式 */
.card {
    background-color: #fff;
    border: 1px solid #e5e7eb;
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
}

.card__header {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid #e5e7eb;
}

.card__body {
    padding: 1.5rem;
}

.card__footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid #e5e7eb;
    background-color: #f9fafb;
}

/* 工具提示 */
.tooltip {
    position: relative;
    display: inline-block;
}

.tooltip__content {
    position: absolute;
    bottom: 125%;
    left: 50%;
    transform: translateX(-50%);
    background-color: #1f2937;
    color: #fff;
    padding: 0.5rem;
    border-radius: 0.25rem;
    font-size: 0.75rem;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s, visibility 0.2s;
    z-index: 1000;
}

.tooltip:hover .tooltip__content {
    opacity: 1;
    visibility: visible;
}

/* 响应式工具类 */
.d-none {
    display: none !important;
}

.d-block {
    display: block !important;
}

.d-flex {
    display: flex !important;
}

.justify-center {
    justify-content: center !important;
}

.justify-between {
    justify-content: space-between !important;
}

.items-center {
    align-items: center !important;
}

.text-center {
    text-align: center !important;
}

.text-left {
    text-align: left !important;
}

.text-right {
    text-align: right !important;
}

/* 响应式断点 */
@media (max-width: 768px) {
    .container {
        padding: 0 16px;
        max-width: 100%;
    }
    
    .pg-base__main {
        padding: 1.5rem 0;
    }
    
    .d-md-none {
        display: none !important;
    }
    
    .d-md-block {
        display: block !important;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 12px;
    }
    
    .pg-base__main {
        padding: 1rem 0;
    }
    
    .d-sm-none {
        display: none !important;
    }
    
    .d-sm-block {
        display: block !important;
    }
}

/* 新增375px断点 */
@media (max-width: 375px) {
    .container {
        padding: 0 8px;
    }
}