/* 如何使用 - 标签页 */
.usage-section {}

.usage-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 24px;
    border-bottom: 2px solid #e2e8f0;
    background: linear-gradient(135deg, #fafbfc, #f8fafc);
    padding: 8px 8px 0;
    border-radius: 12px 12px 0 0;
}

.usage-tab {
    padding: 12px 24px;
    background: transparent;
    border: none;
    font-size: 16px;
    font-weight: 600;
    color: #64748b;
    cursor: pointer;
    border-bottom: 3px solid transparent;
    margin-bottom: -2px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 8px 8px 0 0;
}

.usage-tab:hover {
    color: #2563eb;
    background: rgba(37, 99, 235, 0.05);
}

.usage-tab.active {
    color: #2563eb;
    border-bottom-color: #2563eb;
    background: white;
    box-shadow: 0 -2px 8px rgba(37, 99, 235, 0.1);
}

.usage-content {
    display: none;
}

.usage-content.active {
    display: block;
    animation: fadeIn 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 使用方式卡片 */
.usage-card {
    background: linear-gradient(135deg, #ffffff 0%, #fafbfc 100%);
    border: 2px solid #e2e8f0;
    border-radius: 16px;
    padding: 24px;
    margin-bottom: 16px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.usage-card:hover {
    border-color: #2563eb;
    box-shadow: 0 8px 16px rgba(37, 99, 235, 0.15);
    transform: translateY(-2px);
}

.usage-card-title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 12px;
    color: #0f172a;
    display: flex;
    align-items: center;
    gap: 8px;
}

.usage-card-desc {
    font-size: 14px;
    color: #64748b;
    line-height: 1.6;
    margin-bottom: 16px;
}

.usage-card-action {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 20px;
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    color: #fff;
    border-radius: 10px;
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
    position: relative;
}

.usage-card-action:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(37, 99, 235, 0.4);
}

.usage-card-action.disabled {
    background: #f8fafc;
    color: #94a3b8;
    box-shadow: none;
    cursor: default;
    border: 1px solid #e2e8f0;
}

.usage-card-action.disabled:hover {
    transform: none;
    box-shadow: none;
}

.usage-card-action.disabled::after {
    content: '敬请期待';
    position: absolute;
    bottom: 110%;
    left: 50%;
    transform: translateX(-50%);
    font-size: 11px;
    font-weight: 500;
    color: #475569;
    background: #e2e8f0;
    padding: 4px 8px;
    border-radius: 4px;
    opacity: 0;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    white-space: nowrap;
    pointer-events: none;
}

.usage-card-action.disabled:hover::after {
    opacity: 1;
    bottom: 125%;
}