.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem 1rem;
    font-weight: 500;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    border: 1px solid transparent;
    font-size: 0.875rem;
    line-height: 1.25rem;
}

.btn-primary {
    background-color: var(--color-primary);
    color: var(--text-on-primary) !important;
}

.btn-primary:hover {
    background-color: var(--color-primary-hover);
    color: var(--text-on-primary) !important;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-outline {
    background-color: transparent;
    border-color: var(--border-color);
    color: var(--text-main);
}

.btn-outline:hover {
    background-color: var(--bg-surface-hover);
    border-color: var(--text-muted);
}

.btn-block {
    width: 100%;
}

.card {
    background-color: var(--bg-surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.card-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-body {
    padding: var(--spacing-lg);
}

.card-footer {
    padding: var(--spacing-md) var(--spacing-lg);
    background-color: var(--bg-surface-hover);
    border-top: 1px solid var(--border-color);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-main);
    margin-bottom: var(--spacing-xs);
}

.form-control {
    display: block;
    width: 100%;
    padding: 0.5rem 0.75rem;
    font-size: 0.875rem;
    line-height: 1.5;
    color: var(--text-main);
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.alert {
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    font-size: 0.875rem;
    font-weight: 500;
    border: 1px solid transparent;
    line-height: 1.5;
}

.alert-success {
    background-color: rgba(34, 197, 94, 0.1);
    color: #15803d;
    border-color: rgba(34, 197, 94, 0.2);
}

.alert-error {
    background-color: rgba(239, 68, 68, 0.1);
    color: #b91c1c;
    border-color: rgba(239, 68, 68, 0.2);
}

.table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

.table th,
.table td {
    padding: 0.75rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.table th {
    background-color: var(--bg-surface-hover);
    font-weight: 600;
    color: var(--text-muted);
}

.table tr:last-child td {
    border-bottom: none;
}

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.modal.show {
    display: flex;
}

.modal-content {
    background-color: var(--bg-surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.modal-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-main);
    margin: 0;
}

.close-modal {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0;
    line-height: 1;
}

.close-modal:hover {
    color: var(--text-main);
}

.modal-body {
    padding: 1rem 1.5rem;
    overflow-y: auto;
    flex: 1;
}

.modal-body .form-group {
    margin-bottom: 0;
}

.modal-footer {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 0.75rem;
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border-color);
    background-color: var(--bg-surface-hover);
}

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

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
    position: absolute;
}

.switch .slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--border-color);
    transition: 0.3s;
    border-radius: 24px;
}

.switch .slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: 0.3s;
    border-radius: 50%;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.switch input:checked + .slider {
    background-color: var(--color-primary);
}

.switch input:checked + .slider:before {
    transform: translateX(20px);
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: var(--radius-full);
    line-height: 1;
    white-space: nowrap;
}

.badge-primary {
    background-color: rgba(99, 102, 241, 0.1);
    color: var(--color-primary);
}

.badge-success {
    background-color: rgba(34, 197, 94, 0.1);
    color: #15803d;
}

.badge-warning {
    background-color: rgba(245, 158, 11, 0.1);
    color: #b45309;
}

.badge-error {
    background-color: rgba(239, 68, 68, 0.1);
    color: #b91c1c;
}

.badge-secondary {
    background-color: var(--bg-surface-hover);
    color: var(--text-muted);
}

.badge-blue {
    background-color: rgba(59, 130, 246, 0.1);
    color: #2563eb;
}

.badge-purple {
    background-color: rgba(168, 85, 247, 0.1);
    color: #9333ea;
}

.btn-sm {
    padding: 0.375rem 0.75rem;
    font-size: 0.8125rem;
}

.btn-text {
    background: none;
    border: none;
    padding: 0.25rem 0.5rem;
}

.btn-text:hover {
    background-color: var(--bg-surface-hover);
}

.alert-info {
    background-color: rgba(59, 130, 246, 0.1);
    color: #1d4ed8;
    border-color: rgba(59, 130, 246, 0.2);
}

.alert-secondary {
    background-color: var(--bg-surface-hover);
    color: var(--text-secondary);
    border-color: var(--border-color);
}

.alert-warning {
    background-color: rgba(245, 158, 11, 0.1);
    color: #b45309;
    border-color: rgba(245, 158, 11, 0.2);
}

.card-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-main);
    margin: 0;
}

.table-container {
    overflow-x: auto;
}

.p-2 {
    padding: 0.5rem;
}

.mb-4 {
    margin-bottom: 1rem;
}

.mb-6 {
    margin-bottom: 1.5rem;
}

/* ===== 移动端基础适配 (<=767px) ===== */
@media (max-width: 767px) {
    /* iOS Safari 输入框字号 <16px 会触发页面自动放大 */
    input[type="text"],
    input[type="email"],
    input[type="password"],
    input[type="number"],
    input[type="tel"],
    input[type="search"],
    input[type="url"],
    select,
    textarea,
    .form-control {
        font-size: 16px;
    }

    .card-header,
    .card-body,
    .card-footer {
        padding: 1rem;
    }

    .card-header {
        flex-wrap: wrap;
        gap: 0.5rem;
    }

    .modal { padding: 0.75rem; }
    .modal-header,
    .modal-body,
    .modal-footer {
        padding: 1rem;
    }

    .table th,
    .table td {
        padding: 0.625rem 0.75rem;
    }

    .btn {
        min-height: 40px;
    }

    .btn-sm {
        min-height: 32px;
    }
}


/* ===== 窄屏固定多列 grid 兜底 (<= 1024px 可收缩 / <=767px 单列) ===== */
[style*="display: grid"] > *,
[style*="display:grid"] > * {
    min-width: 0;
}

@media (max-width: 1024px) {
    [style*="grid-template-columns: 2fr 1fr"] > * {
        min-width: 0;
    }
}

@media (max-width: 767px) {
    [style*="grid-template-columns: 2fr 1fr"],
    [style*="grid-template-columns: 1fr 1fr"],
    [style*="grid-template-columns: repeat(2, 1fr)"],
    [style*="grid-template-columns: repeat(3, 1fr)"],
    [style*="grid-template-columns: repeat(4, 1fr)"],
    [style*="grid-template-columns: 240px 1fr"],
    [style*="grid-template-columns: 220px 1fr"],
    [style*="grid-template-columns: 200px 1fr"] {
        grid-template-columns: 1fr !important;
    }

    /* 长 URL / 密钥 / 接口地址在窄屏必须能断行，否则撑破卡片 */
    .alert,
    .alert p,
    .alert li,
    .card-body p,
    .card-body li,
    .card-body td,
    .form-control[readonly] {
        overflow-wrap: anywhere;
        word-break: break-word;
    }

    .card-body code,
    .alert code {
        overflow-wrap: anywhere;
    }
}