/* ==================== Settings 样式 ==================== */
.settings-container {
    overflow-y: auto;
    padding: 24px;
}

/* 卡片网格布局 */
.settings-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    max-width: 1200px;
    margin: 0 auto;
}

@media (max-width: 900px) {
    .settings-grid {
        grid-template-columns: 1fr;
    }
}

/* 设置卡片 */
.settings-card {
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border-default);
    border-radius: 12px;
    overflow: hidden;
}

.settings-card-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 16px 20px;
    border-bottom: 1px solid var(--color-border-default);
    background: var(--color-bg-base);
}

.settings-card-header i {
    font-size: 18px;
    color: var(--color-accent-primary);
}

.settings-card-header h3 {
    margin: 0;
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text-primary);
}

.settings-card-body {
    padding: 20px;
}

/* 全宽卡片 */
.settings-card--full {
    grid-column: 1 / -1;
}

/* 兼容旧的 settings-form */
.settings-form {
    max-width: 820px;
    margin: 0 auto;
    padding: 24px;
    background: var(--color-bg-input);
    border-radius: 10px;
    display: grid;
    grid-template-columns: repeat(2, minmax(320px, 1fr));
    column-gap: 20px;
    row-gap: 16px;
}

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

.form-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    font-size: 13px;
    color: var(--color-text-primary);
}

.form-input {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--color-border-default);
    border-radius: 6px;
    background: var(--color-bg-base);
    color: var(--color-text-primary);
    font-size: 13px;
    font-family: var(--font-family-mono);
    outline: none;
    transition: all 0.2s;
}

.form-input:focus {
    border-color: var(--color-accent-primary);
}

.form-hint {
    display: block;
    margin-top: 6px;
    color: var(--color-text-secondary);
    font-size: 11px;
}

.toggle-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    padding: 12px 0;
}

.toggle-switch {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 24px;
    flex-shrink: 0;
}

.toggle-checkbox {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--color-border-default);
    transition: 0.4s;
    border-radius: 24px;
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: 0.4s;
    border-radius: 50%;
}

.toggle-checkbox:checked + .toggle-slider {
    background-color: var(--color-success);
}

.toggle-checkbox:checked + .toggle-slider:before {
    transform: translateX(20px);
}

.form-divider {
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid var(--color-border-default);
    grid-column: 1 / -1;
}

.form-actions {
    display: flex;
    justify-content: center;
    gap: 12px;
    width: 100%;
}

/* 标题行全行占位，避免被拆分到左右两列 */
.settings-form h3 {
    grid-column: 1 / -1;
}

/* 按钮瘦身，避免占满整列 */
.form-actions .btn {
    width: 100%;
    min-width: 0;
    padding: 12px 22px;
    font-size: 14px;
    font-weight: 600;
}

/* 数据备份块布局 */
.backup-block {
    grid-column: 1 / -1;
    border: 1px solid var(--color-border-default);
    border-radius: 10px;
    background: var(--color-bg-base);
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.backup-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
}

.backup-header h3 {
    margin: 0;
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text-primary);
}

.backup-hint {
    font-size: 12px;
    color: var(--color-text-secondary);
}

.backup-actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(160px, 1fr));
    gap: 10px;
}

.backup-actions .btn {
    width: 100%;
    min-width: 0;
    padding: 12px 16px;
}