/* 全局样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* 根元素和字体设置 */
:root {
    --primary-color: #2c3e50;
    --secondary-color: #34495e;
    --accent-color: #3498db;
    --success-color: #27ae60;
    --warning-color: #f39c12;
    --danger-color: #e74c3c;
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-card: #ffffff;
    --border-color: #dee2e6;
    --text-muted: #6c757d;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    --border-radius: 12px;
    --transition: all 0.3s ease;
}

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 25%, #f1f5f9 50%, #ffffff 75%, #f8fafc 100%);
    background-attachment: fixed;
    min-height: 100vh;
    color: var(--primary-color);
    line-height: 1.6;
    font-size: 14px;
}

/* 容器布局 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 头部样式 */
.header {
    padding: 40px 0 30px;
    text-align: center;
    background: transparent;
}

.title {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--primary-color);
}

.title i {
    margin-right: 12px;
    color: var(--accent-color);
}

.subtitle {
    font-size: 1rem;
    color: var(--text-muted);
    font-weight: 400;
}

/* 主要内容区域 */
.main-content {
    padding: 30px 0 100px;
}

.cards-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto auto;
    gap: 24px;
    max-width: 1000px;
    margin: 0 auto;
}

/* UA卡片占据整个顶部 */
.card:first-child {
    grid-column: 1 / -1;
}

/* 卡片样式 */
.card {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: var(--transition);
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}

.card-header {
    padding: 20px 24px 16px;
    background: rgba(248, 249, 250, 0.6);
    border-bottom: 1px solid rgba(222, 226, 230, 0.3);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-header h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--primary-color);
    display: flex;
    align-items: center;
}

.card-header h3 i {
    margin-right: 10px;
    color: var(--accent-color);
    font-size: 1.2rem;
}

.card-content {
    padding: 24px;
}

/* 按钮样式 */
.copy-btn, .refresh-btn {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    font-size: 0.9rem;
    cursor: pointer;
    padding: 8px 12px;
    border-radius: 6px;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
}

.copy-btn:hover, .refresh-btn:hover {
    color: var(--accent-color);
    border-color: var(--accent-color);
    background: rgba(52, 152, 219, 0.05);
}

.copy-btn:active, .refresh-btn:active {
    transform: scale(0.95);
}

/* 通用内容区域样式 */
.content-area {
    background: rgba(248, 249, 250, 0.4);
    border: 1px solid rgba(222, 226, 230, 0.3);
    border-radius: 8px;
    transition: var(--transition);
}

.content-area:hover {
    background: var(--bg-primary);
    border-color: var(--accent-color);
}

/* User-Agent 显示 */
.ua-display {
    padding: 16px;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 0.85rem;
    line-height: 1.5;
    word-break: break-all;
    color: var(--secondary-color);
}

/* 速度测试样式 */
.speed-tests {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.speed-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 16px;
}

.speed-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.speed-icon {
    font-size: 1.1rem;
    color: var(--text-muted);
    width: 20px;
    text-align: center;
}

.speed-name {
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--primary-color);
}

.speed-ip {
    display: flex;
    align-items: center;
    justify-content: center;
    flex: 1;
}

.ip-value {
    font-size: 0.75rem;
    color: #666;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    min-width: 80px;
    text-align: center;
    transition: all 0.3s ease;
}

.speed-result {
    display: flex;
    align-items: center;
    gap: 8px;
}

.speed-value {
    font-weight: 600;
    min-width: 70px;
    text-align: right;
    font-size: 0.9rem;
}

/* 速度状态颜色和动画 */
.speed-value {
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    transform: scale(1);
}

.speed-value.updating {
    opacity: 0.6;
    transform: scale(0.95);
}

.speed-value.updated {
    animation: speedUpdate 0.6s ease-out;
}

@keyframes speedUpdate {
    0% {
        opacity: 0.6;
        transform: scale(0.95);
    }
    50% {
        opacity: 1;
        transform: scale(1.05);
    }
    100% {
        opacity: 1;
        transform: scale(1);
    }
}

.speed-fast {
    color: var(--success-color);
    text-shadow: 0 0 8px rgba(72, 187, 120, 0.3);
}

.speed-medium {
    color: var(--warning-color);
    text-shadow: 0 0 8px rgba(237, 137, 54, 0.3);
}

.speed-slow {
    color: var(--danger-color);
    text-shadow: 0 0 8px rgba(245, 101, 101, 0.3);
}

/* 连接状态指示器 */
.speed-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    margin-left: 6px;
    transition: all 0.3s ease;
    display: inline-block;
}

.speed-indicator.fast {
    background: var(--success-color);
    box-shadow: 0 0 6px rgba(72, 187, 120, 0.6);
}

.speed-indicator.medium {
    background: var(--warning-color);
    box-shadow: 0 0 6px rgba(237, 137, 54, 0.6);
}

.speed-indicator.slow {
    background: var(--danger-color);
    box-shadow: 0 0 6px rgba(245, 101, 101, 0.6);
}

.speed-indicator.testing {
    background: #94a3b8;
    animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.6;
        transform: scale(1.2);
    }
}

/* 加载动画 */
.loading-spinner {
    width: 14px;
    height: 14px;
    border: 2px solid var(--border-color);
    border-top: 2px solid var(--accent-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    display: none;
}

.loading .loading-spinner {
    display: block;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 设备信息样式 */
.device-info {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.info-item {
    display: flex;
    align-items: center;
    padding: 14px 16px;
    cursor: pointer;
}

.info-item:active {
    transform: scale(0.98);
}

.info-icon {
    font-size: 1.1rem;
    color: var(--text-muted);
    width: 20px;
    text-align: center;
    margin-right: 12px;
}

.info-label {
    font-weight: 500;
    color: var(--secondary-color);
    font-size: 0.9rem;
    min-width: 90px;
    margin-right: 16px;
}

.info-value {
    font-weight: 600;
    color: var(--primary-color);
    font-size: 0.9rem;
    flex: 1;
}

/* 底部样式 */
.footer {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: transparent;
    padding: 8px 0;
    z-index: 100;
}

.footer-card {
    background: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 50px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    padding: 8px 20px;
    width: fit-content;
    margin: 0 auto;
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
}

.footer-content {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 6px;
    text-align: center;
    white-space: nowrap;
    font-size: 1rem;
    color: var(--primary-color);
    line-height: 1;
    font-weight: 500;
    text-shadow: 0 1px 2px rgba(255, 255, 255, 0.8);
}

.footer-content i {
    color: var(--accent-color);
    font-size: 1rem;
    line-height: 1;
}

.load-value {
    color: var(--primary-color);
    font-weight: 600;
    font-size: 1rem;
    line-height: 1;
}

/* 提示框样式 */
.toast {
    position: fixed;
    top: 20px;
    right: 20px;
    background: var(--success-color);
    color: white;
    padding: 12px 16px;
    border-radius: 8px;
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    gap: 8px;
    transform: translateX(100%);
    opacity: 0;
    transition: var(--transition);
    z-index: 1000;
    font-size: 0.9rem;
    font-weight: 500;
}

.toast.show {
    transform: translateX(0);
    opacity: 1;
}

.toast i {
    font-size: 1rem;
}

/* 动画效果 */
.fade-in-up {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.6s ease-out forwards;
}

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

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        padding: 0 12px;
    }

    .cards-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .header {
        padding: 20px 0 16px;
    }

    .title {
        font-size: 1.5rem;
        margin-bottom: 6px;
    }

    .subtitle {
        font-size: 0.85rem;
    }

    .main-content {
        padding: 20px 0 80px;
    }

    .card-header {
        padding: 14px 16px 10px;
    }

    .card-content {
        padding: 16px;
    }

    .speed-tests {
        gap: 8px;
    }

    .speed-item {
        padding: 10px 12px;
    }

    .speed-name {
        font-size: 0.85rem;
    }

    .speed-value {
        font-size: 0.85rem;
    }

    .device-info {
        gap: 8px;
    }

    .info-item {
        padding: 10px 12px;
    }

    .info-label {
        font-size: 0.85rem;
        min-width: 80px;
    }

    .info-value {
        font-size: 0.85rem;
    }

    .ua-display {
        padding: 12px;
        font-size: 0.8rem;
        line-height: 1.4;
    }

    .footer-card {
        margin: 0 auto;
        padding: 8px 10px;
        border-radius: 40px;
        width: fit-content;
        max-width: calc(100% - 12px);
        background: rgba(255, 255, 255, 0.2);
        border: 1px solid rgba(255, 255, 255, 0.3);
        backdrop-filter: blur(20px) saturate(180%);
        -webkit-backdrop-filter: blur(20px) saturate(180%);
    }

    .footer-content {
        gap: 4px;
        white-space: normal;
        flex-wrap: wrap;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 10px;
    }

    .main-content {
        padding: 16px 0 70px;
    }

    .cards-grid {
        gap: 12px;
    }

    .card-header {
        padding: 12px 14px 8px;
    }

    .card-content {
        padding: 14px;
    }

    .speed-item {
        padding: 8px 10px;
    }

    .info-item {
        padding: 8px 10px;
    }

    .ua-display {
        padding: 10px;
        font-size: 0.75rem;
    }

    .footer-card {
        margin: 0 auto;
        padding: 6px 8px;
        border-radius: 25px;
        width: fit-content;
        max-width: calc(100% - 16px);
        background: rgba(255, 255, 255, 0.2);
        border: 1px solid rgba(255, 255, 255, 0.3);
        backdrop-filter: blur(20px) saturate(180%);
        -webkit-backdrop-filter: blur(20px) saturate(180%);
    }

    .footer-content {
        gap: 4px;
        font-size: 0.85rem;
    }

    .footer-content i {
        font-size: 0.85rem;
    }

    .load-value {
        font-size: 0.85rem;
    }

    .toast {
        right: 10px;
        left: 10px;
        transform: translateY(-100%);
    }

    .toast.show {
        transform: translateY(0);
    }
}

/* 手动查询样式 */
.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.manual-query-container {
    display: flex;
    align-items: center;
    gap: 8px;
}

.manual-ip-input {
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 14px;
    width: 160px;
    transition: var(--transition);
    background: rgba(255, 255, 255, 0.9);
}

.manual-ip-input:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.2);
}

.query-btn {
    padding: 8px 12px;
    background: var(--accent-color);
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.query-btn:hover {
    background: #2980b9;
    transform: translateY(-1px);
}

.manual-query-results {
    margin-top: 16px;
}

.query-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
}

.query-header h4 {
    margin: 0;
    color: var(--text-color);
    font-size: 16px;
}

.back-btn {
    padding: 6px 12px;
    background: #6c757d;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition);
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.back-btn:hover {
    background: #5a6268;
    transform: translateY(-1px);
}

/* API查询结果样式 */
.api-results {
    margin: 16px 0;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.api-result-item {
    background: rgba(248, 249, 250, 0.5);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 12px;
    transition: var(--transition);
}

.api-result-item:hover {
    background: rgba(248, 249, 250, 0.8);
    border-color: var(--accent-color);
}

.api-result-item.success {
    border-color: #28a745;
    background: rgba(40, 167, 69, 0.05);
}

.api-result-item.error {
    border-color: #dc3545;
    background: rgba(220, 53, 69, 0.05);
}

.api-result-item.loading {
    border-color: var(--accent-color);
    background: rgba(52, 152, 219, 0.05);
}

.api-result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.api-name {
    font-weight: 600;
    color: var(--text-color);
}

.api-status {
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
}

.api-status.success {
    background: #d4edda;
    color: #155724;
}

.api-status.error {
    background: #f8d7da;
    color: #721c24;
}

.api-status.loading {
    background: #d1ecf1;
    color: #0c5460;
}

.api-result-content {
    margin-top: 8px;
}

.location-info {
    font-size: 14px;
    color: var(--text-color);
    margin: 4px 0;
    padding: 3px 0;
    border-bottom: 1px solid #eee;
}

.location-info strong {
    color: #333;
    font-weight: 600;
}

.location-info:last-of-type {
    border-bottom: none;
    margin-bottom: 10px;
}

/* 原始数据展示样式 */
details {
    margin-top: 10px;
}

details summary {
    cursor: pointer;
    color: #007bff;
    font-size: 13px;
    padding: 5px 0;
}

details summary:hover {
    color: #0056b3;
}

details pre {
    background: #f8f9fa;
    padding: 10px;
    border-radius: 4px;
    font-size: 12px;
    overflow-x: auto;
    margin-top: 5px;
    border: 1px solid #e9ecef;
    max-height: 300px;
    overflow-y: auto;
}

.error-message {
    font-size: 14px;
    color: #dc3545;
    font-style: italic;
}