:root {
    --primary-color: #6C63FF;
    --primary-light: #8A7EFF;
    --background-color: #f0f2f5;
    --container-bg: #ffffff;
    --text-color: #333;
    --text-secondary: #666;
    --border-color: #e0e0e0;
    --input-bg: #f9f9f9;
    --success-color: #28a745;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --shadow-color: rgba(0, 0, 0, 0.08);
    --hover-bg: #f2f2f2;
    --performance-bg: #f8f9fa;
    --count-bg: #e9ecef;
    --scrollbar-track: #f1f1f1;
    --scrollbar-thumb: #c1c1c1;
    --scrollbar-thumb-hover: #a8a8a8;
}

/* 暗黑模式变量 */
[data-theme="dark"] {
    --primary-color: #8A7EFF;
    --primary-light: #9B8FFF;
    --background-color: #1a1a1a;
    --container-bg: #2d2d2d;
    --text-color: #e0e0e0;
    --text-secondary: #b0b0b0;
    --border-color: #404040;
    --input-bg: #3a3a3a;
    --success-color: #4caf50;
    --warning-color: #ff9800;
    --danger-color: #f44336;
    --shadow-color: rgba(0, 0, 0, 0.3);
    --hover-bg: #404040;
    --performance-bg: #333333;
    --count-bg: #404040;
    --scrollbar-track: #404040;
    --scrollbar-thumb: #666666;
    --scrollbar-thumb-hover: #888888;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    display: flex;
    justify-content: center;
    padding: 2rem 1rem;
}

.container {
    width: 100%;
    max-width: 800px;
    background-color: var(--container-bg);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.header {
    margin-bottom: 2rem;
}

.header-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.header-content {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.title-section {
    text-align: left;
}

.header .logo {
    width: 48px;
    height: 48px;
}

.header h1 {
    font-size: 2rem;
    color: var(--text-color);
    margin: 0;
}

.header p {
    color: var(--text-secondary);
    font-size: 1rem;
    margin: 0.25rem 0 0 0;
}

/* 主题切换按钮样式 */
.theme-toggle {
    background: var(--container-bg);
    border: 2px solid var(--border-color);
    border-radius: 50%;
    width: 48px;
    height: 48px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px var(--shadow-color);
}

.theme-toggle:hover {
    transform: scale(1.05);
    border-color: var(--primary-color);
    box-shadow: 0 4px 12px var(--shadow-color);
}

.theme-toggle:active {
    transform: scale(0.95);
}

.theme-icon {
    font-size: 1.5rem;
    transition: transform 0.3s ease;
}

.theme-toggle:hover .theme-icon {
    transform: rotate(15deg);
}

/* 暗黑模式下的主题图标 */
[data-theme="dark"] .theme-icon {
    filter: brightness(1.2);
}

.form-group {
    margin-bottom: 1.5rem;
}

.group-title, .form-group > label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

.provider-selector {
    display: flex;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
}

.provider-selector input[type="radio"] {
    display: none;
}

.provider-selector label {
    flex: 1;
    text-align: center;
    padding: 0.75rem 1rem;
    cursor: pointer;
    background-color: var(--input-bg);
    color: var(--text-secondary);
    transition: all 0.2s ease-in-out;
    border-left: 1px solid var(--border-color);
}
.provider-selector label:first-of-type {
    border-left: none;
}

.provider-selector input[type="radio"]:checked + label {
    background-color: var(--primary-color);
    color: white;
    font-weight: 600;
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.1);
}

.input-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

input[type="text"],
input[type="number"],
select,
textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    background-color: var(--input-bg);
    transition: border-color 0.2s, box-shadow 0.2s;
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(108, 99, 255, 0.2);
}

textarea {
    resize: vertical;
    font-family: 'Courier New', Courier, monospace;
}

.model-fetch-wrapper {
    display: flex;
    gap: 0.5rem;
}

.model-fetch-wrapper select {
    flex-grow: 1;
}

#fetch-models-btn, .import-btn {
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-color);
    background-color: var(--container-bg);
    color: var(--text-color);
    border-radius: 8px;
    cursor: pointer;
    font-weight: 500;
    transition: background-color 0.2s;
    white-space: nowrap;
}

#fetch-models-btn:hover, .import-btn:hover {
    background-color: var(--hover-bg);
}

.label-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.label-bar .group-title {
    margin-bottom: 0;
}

#start-check-btn {
    width: 100%;
    padding: 1rem;
    font-size: 1.1rem;
    font-weight: 600;
    color: white;
    background: linear-gradient(90deg, var(--primary-light) 0%, var(--primary-color) 100%);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    margin-top: 1rem;
    margin-bottom: 2rem;
}

#start-check-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(108, 99, 255, 0.4);
}

#start-check-btn:disabled {
    background: #ccc;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.result-category {
    margin-bottom: 1.5rem;
}

.result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    margin-bottom: 0.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color);
    position: relative; /* 为绝对定位的复制按钮提供容器 */
}

.result-header .count {
    background-color: var(--count-bg);
    padding: 0.2rem 0.5rem;
    border-radius: 12px;
    font-size: 0.9rem;
    /* 调整 count 元素，为复制按钮留出空间 */
    margin-right: 2.5rem;
}

.result-box {
    background-color: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    min-height: 60px;
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.9rem;
    white-space: pre-wrap;
    word-wrap: break-word;
}

.hidden {
    display: none !important;
}

/* --- 复制按钮样式 --- */
.copy-btn {
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    cursor: pointer;
    font-size: 1.2rem;
    color: var(--text-secondary);
    transition: color 0.2s, transform 0.2s;
}

.copy-btn:hover {
    color: var(--primary-color);
    transform: translateY(-50%) scale(1.1);
}

.copy-btn:active {
    transform: translateY(-50%) scale(0.95);
}

/* --- 复制成功提示样式 --- */
.toast-notification {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--primary-color);
    color: white;
    padding: 10px 20px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.2);
    z-index: 1000;
    opacity: 0;
    transition: opacity 0.3s, bottom 0.3s;
}

.toast-notification.show {
    opacity: 1;
    bottom: 30px;
}

/* --- 性能监控面板样式 --- */
#performance-panel {
    background-color: var(--performance-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin-bottom: 1rem;
    padding: 1rem;
}

.performance-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.toggle-btn {
    background: none;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 0.25rem 0.5rem;
    font-size: 0.8rem;
    cursor: pointer;
    color: var(--text-secondary);
}

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

.performance-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
}

.stat-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem;
    background-color: var(--container-bg);
    border-radius: 4px;
    border: 1px solid var(--border-color);
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.stat-item span:last-child {
    font-weight: 600;
    color: var(--primary-color);
}

/* --- 虚拟滚动优化 --- */
.result-box {
    background-color: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    min-height: 60px;
    max-height: 300px;
    overflow-y: auto;
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.9rem;
    white-space: pre-wrap;
    word-wrap: break-word;
    position: relative;
}

.result-box.large-dataset {
    max-height: 200px;
}

.result-box::-webkit-scrollbar {
    width: 8px;
}

.result-box::-webkit-scrollbar-track {
    background: var(--scrollbar-track);
    border-radius: 4px;
}

.result-box::-webkit-scrollbar-thumb {
    background: var(--scrollbar-thumb);
    border-radius: 4px;
}

.result-box::-webkit-scrollbar-thumb:hover {
    background: var(--scrollbar-thumb-hover);
}

/* 大数据集提示 */
.large-dataset-notice {
    position: absolute;
    top: 0;
    right: 0;
    background-color: var(--warning-color);
    color: white;
    padding: 0.25rem 0.5rem;
    font-size: 0.7rem;
    border-radius: 0 8px 0 4px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .input-grid {
        grid-template-columns: 1fr;
    }
    .container {
        padding: 1.5rem;
    }
    .header h1 {
        font-size: 1.8rem;
    }
    .performance-stats {
        grid-template-columns: 1fr;
    }
}