/* CSS 变量 - 基础主题配色 */
:root {
    --bg-primary: #0f0f1a;
    --bg-secondary: #1a1a2e;
    --bg-card: #16213e;
    --bg-card-hover: #1f3460;
    --accent-primary: #e94560;
    --accent-secondary: #0f3460;
    --accent-gradient: linear-gradient(135deg, #e94560 0%, #0f3460 100%);
    --text-primary: #ffffff;
    --text-secondary: #a0a0b8;
    --text-muted: #6b6b80;
    --success: #00d26a;
    --warning: #ffc107;
    --danger: #ff5252;
    --info: #00b4d8;
    --border-color: rgba(255, 255, 255, 0.08);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.5);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --theme-emoji: "⚡";
    --theme-name: "默认主题";
}

/* 🌊 海洋蓝主题 */
[data-theme="ocean"] {
    --bg-primary: #0a1628;
    --bg-secondary: #112240;
    --bg-card: #1d3557;
    --bg-card-hover: #264773;
    --accent-primary: #00d4ff;
    --accent-secondary: #0077b6;
    --accent-gradient: linear-gradient(135deg, #00d4ff 0%, #0077b6 100%);
    --theme-emoji: "🌊";
    --theme-name: "海洋蓝";
}

/* 🌸 樱花粉主题 */
[data-theme="sakura"] {
    --bg-primary: #1a0a14;
    --bg-secondary: #2d1525;
    --bg-card: #3d1f33;
    --bg-card-hover: #4d2941;
    --accent-primary: #ff69b4;
    --accent-secondary: #c71585;
    --accent-gradient: linear-gradient(135deg, #ff69b4 0%, #c71585 100%);
    --theme-emoji: "🌸";
    --theme-name: "樱花粉";
}

/* 🌿 森林绿主题 */
[data-theme="forest"] {
    --bg-primary: #0a1410;
    --bg-secondary: #132118;
    --bg-card: #1a3025;
    --bg-card-hover: #234032;
    --accent-primary: #00ff88;
    --accent-secondary: #00b359;
    --accent-gradient: linear-gradient(135deg, #00ff88 0%, #00b359 100%);
    --theme-emoji: "🌿";
    --theme-name: "森林绿";
}

/* 🔥 烈焰橙主题 */
[data-theme="flame"] {
    --bg-primary: #1a0f0a;
    --bg-secondary: #2d1810;
    --bg-card: #402010;
    --bg-card-hover: #552a15;
    --accent-primary: #ff6b35;
    --accent-secondary: #e63900;
    --accent-gradient: linear-gradient(135deg, #ff6b35 0%, #e63900 100%);
    --theme-emoji: "🔥";
    --theme-name: "烈焰橙";
}

/* 💜 星空紫主题 */
[data-theme="galaxy"] {
    --bg-primary: #0f0a1a;
    --bg-secondary: #1a1030;
    --bg-card: #251545;
    --bg-card-hover: #301a5a;
    --accent-primary: #a855f7;
    --accent-secondary: #7c3aed;
    --accent-gradient: linear-gradient(135deg, #a855f7 0%, #7c3aed 100%);
    --theme-emoji: "💜";
    --theme-name: "星空紫";
}

/* ⭐ 金色主题 */
[data-theme="gold"] {
    --bg-primary: #141208;
    --bg-secondary: #1f1c10;
    --bg-card: #2a2515;
    --bg-card-hover: #3a3520;
    --accent-primary: #ffd700;
    --accent-secondary: #daa520;
    --accent-gradient: linear-gradient(135deg, #ffd700 0%, #daa520 100%);
    --theme-emoji: "⭐";
    --theme-name: "尊贵金";
}

/* 重置和基础样式 */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
    overflow-x: hidden;
}

/* 背景装饰 */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(ellipse at 20% 20%, rgba(233, 69, 96, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 80%, rgba(15, 52, 96, 0.2) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 50%, rgba(233, 69, 96, 0.05) 0%, transparent 70%);
    pointer-events: none;
    z-index: -1;
}

/* 应用容器 */
.app-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* 更新提示条 */
.update-banner {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: linear-gradient(90deg, var(--accent-primary), #ff6b6b);
    padding: 12px 20px;
    z-index: 1000;
    transform: translateY(-100%);
    transition: var(--transition);
    box-shadow: var(--shadow-md);
}

.update-banner.show {
    transform: translateY(0);
}

.update-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
}

.update-icon {
    font-size: 1.2em;
    animation: spin 2s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.update-text {
    font-weight: 500;
}

.update-btn, .dismiss-btn {
    padding: 6px 16px;
    border-radius: 20px;
    border: none;
    cursor: pointer;
    font-weight: 500;
    transition: var(--transition);
    font-size: 0.9rem;
}

.update-btn {
    background: white;
    color: var(--accent-primary);
}

.update-btn:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-sm);
}

.dismiss-btn {
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

.dismiss-btn:hover {
    background: rgba(255, 255, 255, 0.3);
}

/* 头部 */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 0;
    border-bottom: 1px solid var(--border-color);
    flex-wrap: wrap;
    gap: 16px;
}

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

.logo-icon {
    width: 48px;
    height: 48px;
    background: var(--accent-gradient);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    box-shadow: var(--shadow-sm);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.logo h1 {
    font-size: 1.8rem;
    font-weight: 700;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.install-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: var(--accent-gradient);
    color: white;
    border: none;
    border-radius: var(--radius-lg);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.95rem;
}

.install-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(233, 69, 96, 0.4);
}

.install-icon {
    font-size: 1.2em;
}

.version-badge {
    padding: 6px 14px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* 主内容 */
.main-content {
    flex: 1;
    padding: 32px 0;
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.section-title {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.section-title::before {
    content: '';
    width: 4px;
    height: 24px;
    background: var(--accent-gradient);
    border-radius: 2px;
}

/* 状态卡片区域 */
.status-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.status-card {
    background: var(--bg-card);
    border-radius: var(--radius-md);
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 16px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.status-card:hover {
    background: var(--bg-card-hover);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.status-icon {
    width: 56px;
    height: 56px;
    background: rgba(233, 69, 96, 0.1);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
}

.status-info h3 {
    font-size: 0.9rem;
    color: var(--text-muted);
    font-weight: 400;
    margin-bottom: 4px;
}

.status-info p {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.status-card.online .status-info p {
    color: var(--success);
}

.status-card.offline .status-info p {
    color: var(--danger);
}

/* 功能卡片区域 */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
}

.feature-card {
    background: var(--bg-card);
    border-radius: var(--radius-md);
    padding: 28px;
    text-align: center;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--accent-gradient);
    transform: scaleX(0);
    transition: var(--transition);
}

.feature-card:hover {
    background: var(--bg-card-hover);
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
    display: block;
}

.feature-card h3 {
    font-size: 1.1rem;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.feature-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* 更新面板 */
.update-panel {
    background: var(--bg-card);
    border-radius: var(--radius-md);
    padding: 28px;
    border: 1px solid var(--border-color);
}

.update-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border-color);
}

.update-info p {
    color: var(--text-secondary);
}

.update-info strong {
    color: var(--text-primary);
    font-weight: 600;
}

.update-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.action-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: var(--radius-md);
    border: none;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.95rem;
}

.action-btn.primary {
    background: var(--accent-gradient);
    color: white;
}

.action-btn.primary:hover {
    box-shadow: 0 4px 15px rgba(233, 69, 96, 0.4);
    transform: translateY(-2px);
}

.action-btn.secondary {
    background: var(--accent-secondary);
    color: white;
}

.action-btn.secondary:hover {
    background: #1a4a7a;
    transform: translateY(-2px);
}

.action-btn.danger {
    background: transparent;
    color: var(--danger);
    border: 1px solid var(--danger);
}

.action-btn.danger:hover {
    background: var(--danger);
    color: white;
}

/* 日志区域 */
.log-section .section-title {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.clear-log-btn {
    padding: 6px 14px;
    background: transparent;
    color: var(--text-muted);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    cursor: pointer;
    transition: var(--transition);
}

.clear-log-btn:hover {
    background: var(--bg-card);
    color: var(--text-primary);
}

.log-container {
    background: var(--bg-card);
    border-radius: var(--radius-md);
    padding: 16px;
    max-height: 300px;
    overflow-y: auto;
    border: 1px solid var(--border-color);
    font-family: 'SF Mono', Monaco, 'Courier New', monospace;
    font-size: 0.85rem;
}

.log-container::-webkit-scrollbar {
    width: 6px;
}

.log-container::-webkit-scrollbar-track {
    background: transparent;
}

.log-container::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}

.log-item {
    display: flex;
    gap: 12px;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    margin-bottom: 4px;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: translateY(0); }
}

.log-item:last-child {
    margin-bottom: 0;
}

.log-time {
    color: var(--text-muted);
    flex-shrink: 0;
}

.log-message {
    color: var(--text-secondary);
}

.log-item.info { background: rgba(0, 180, 216, 0.1); }
.log-item.info .log-message { color: var(--info); }

.log-item.success { background: rgba(0, 210, 106, 0.1); }
.log-item.success .log-message { color: var(--success); }

.log-item.warning { background: rgba(255, 193, 7, 0.1); }
.log-item.warning .log-message { color: var(--warning); }

.log-item.error { background: rgba(255, 82, 82, 0.1); }
.log-item.error .log-message { color: var(--danger); }

/* 底部 */
.app-footer {
    padding: 24px 0;
    text-align: center;
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* 响应式 */
@media (max-width: 768px) {
    .app-header {
        justify-content: center;
        text-align: center;
    }
    
    .logo h1 {
        font-size: 1.4rem;
    }
    
    .update-content {
        flex-direction: column;
        text-align: center;
    }
    
    .update-actions {
        justify-content: center;
    }
    
    .action-btn {
        flex: 1;
        min-width: 140px;
        justify-content: center;
    }
    
    .status-section {
        grid-template-columns: 1fr;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
    }
}

/* 暗色滚动条 */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--accent-secondary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-primary);
}

/* ========================
   更新弹窗样式
   ======================== */
.update-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 2000;
    align-items: center;
    justify-content: center;
}

.update-modal.show {
    display: flex;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    width: 90%;
    max-width: 480px;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
    animation: modalSlideIn 0.3s ease;
    overflow: hidden;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-20px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
    background: linear-gradient(135deg, rgba(233, 69, 96, 0.1), rgba(15, 52, 96, 0.1));
}

.modal-header h2 {
    font-size: 1.3rem;
    font-weight: 600;
}

.modal-close {
    width: 32px;
    height: 32px;
    border: none;
    background: transparent;
    color: var(--text-muted);
    font-size: 1.2rem;
    cursor: pointer;
    border-radius: 50%;
    transition: var(--transition);
}

.modal-close:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
}

.modal-body {
    padding: 24px;
}

.version-compare {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    margin-bottom: 24px;
    padding: 20px;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
}

.version-old, .version-new {
    text-align: center;
}

.version-label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 4px;
}

.version-number {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
}

.version-old .version-number {
    color: var(--text-secondary);
}

.version-new .version-number {
    color: var(--accent-primary);
}

.version-arrow {
    font-size: 1.5rem;
    color: var(--success);
}

.modal-body .changelog-section h3 {
    font-size: 1rem;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.changelog-list {
    list-style: none;
    padding: 0;
}

.changelog-list li {
    padding: 10px 12px;
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
    margin-bottom: 8px;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.changelog-list li:last-child {
    margin-bottom: 0;
}

.modal-footer {
    display: flex;
    gap: 12px;
    padding: 20px 24px;
    border-top: 1px solid var(--border-color);
    background: var(--bg-secondary);
}

.modal-btn {
    flex: 1;
    padding: 12px 20px;
    border-radius: var(--radius-md);
    border: none;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.95rem;
}

.modal-btn.primary {
    background: var(--accent-gradient);
    color: white;
}

.modal-btn.primary:hover {
    box-shadow: 0 4px 15px rgba(233, 69, 96, 0.4);
    transform: translateY(-2px);
}

.modal-btn.secondary {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

.modal-btn.secondary:hover {
    background: var(--bg-card-hover);
}

/* ========================
   发布指南样式
   ======================== */
.release-guide {
    margin-top: 24px;
    padding: 24px;
    background: linear-gradient(135deg, rgba(233, 69, 96, 0.05), rgba(15, 52, 96, 0.1));
    border-radius: var(--radius-md);
    border: 1px dashed var(--accent-primary);
}

.release-guide h3 {
    font-size: 1.1rem;
    margin-bottom: 12px;
    color: var(--accent-primary);
}

.release-guide > p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 12px;
}

.code-block {
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--bg-primary);
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    margin-bottom: 12px;
}

.code-block code {
    flex: 1;
    font-family: 'SF Mono', Monaco, 'Courier New', monospace;
    font-size: 1rem;
    color: var(--success);
}

.copy-btn {
    padding: 6px 10px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
}

.copy-btn:hover {
    background: var(--bg-card-hover);
}

.guide-hint {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-style: italic;
    margin-bottom: 16px;
}

.release-options {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.release-options .option {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 10px 14px;
    background: var(--bg-card);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
}

.release-options .option code {
    font-family: 'SF Mono', Monaco, 'Courier New', monospace;
    color: var(--info);
    background: var(--bg-primary);
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.85rem;
}

.release-options .option span {
    color: var(--text-secondary);
}

/* ========================
   更新历史样式
   ======================== */
.changelog-section-main {
    margin-top: 40px;
}

.changelog-container {
    background: var(--bg-card);
    border-radius: var(--radius-md);
    padding: 20px;
    border: 1px solid var(--border-color);
    max-height: 400px;
    overflow-y: auto;
}

.changelog-empty {
    text-align: center;
    color: var(--text-muted);
    padding: 40px 20px;
    font-size: 0.95rem;
}

.changelog-item {
    padding: 16px;
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
    margin-bottom: 12px;
    border-left: 3px solid var(--accent-primary);
}

.changelog-item:last-child {
    margin-bottom: 0;
}

.changelog-item-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.changelog-version {
    font-weight: 600;
    color: var(--accent-primary);
    font-size: 1.1rem;
}

.changelog-date {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.changelog-changes {
    list-style: none;
    padding: 0;
    margin: 0;
}

.changelog-changes li {
    padding: 6px 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
    border-bottom: 1px solid var(--border-color);
}

.changelog-changes li:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

/* Toast 提示 */
.toast {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--bg-card);
    color: var(--text-primary);
    padding: 12px 24px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
    z-index: 3000;
    transition: transform 0.3s ease;
}

.toast.show {
    transform: translateX(-50%) translateY(0);
}

.toast.success {
    border-color: var(--success);
}

/* ========================
   主题徽章样式
   ======================== */
.theme-badge {
    padding: 6px 14px;
    background: var(--accent-gradient);
    border-radius: var(--radius-lg);
    font-size: 0.85rem;
    color: white;
    font-weight: 500;
    animation: themePulse 2s ease-in-out infinite;
}

@keyframes themePulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(233, 69, 96, 0.4); }
    50% { box-shadow: 0 0 0 8px rgba(233, 69, 96, 0); }
}

/* 主题预览区域 */
.theme-preview-section {
    margin-bottom: 20px;
}

.theme-preview-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    border-radius: var(--radius-md);
    border: 2px solid;
    font-weight: 500;
    animation: previewGlow 1.5s ease-in-out infinite;
}

@keyframes previewGlow {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.02); }
}

.theme-preview-emoji {
    font-size: 1.5rem;
}

.theme-preview-name {
    font-size: 1rem;
    color: var(--text-primary);
}

/* 更新历史中的主题标签 */
.changelog-theme {
    display: inline-block;
    margin-left: 8px;
    padding: 2px 8px;
    background: var(--accent-gradient);
    border-radius: 12px;
    font-size: 0.75rem;
    color: white;
    font-weight: 400;
    vertical-align: middle;
}

/* 主题切换动画 */
body {
    transition: background 0.5s ease, color 0.3s ease;
}

.logo-icon {
    transition: all 0.3s ease;
}

/* 不同主题的背景装饰调整 */
[data-theme="ocean"] body::before {
    background: 
        radial-gradient(ellipse at 20% 20%, rgba(0, 212, 255, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 80%, rgba(0, 119, 182, 0.2) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 50%, rgba(0, 212, 255, 0.05) 0%, transparent 70%);
}

[data-theme="sakura"] body::before {
    background: 
        radial-gradient(ellipse at 20% 20%, rgba(255, 105, 180, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 80%, rgba(199, 21, 133, 0.2) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 50%, rgba(255, 105, 180, 0.05) 0%, transparent 70%);
}

[data-theme="forest"] body::before {
    background: 
        radial-gradient(ellipse at 20% 20%, rgba(0, 255, 136, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 80%, rgba(0, 179, 89, 0.2) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 50%, rgba(0, 255, 136, 0.05) 0%, transparent 70%);
}

[data-theme="flame"] body::before {
    background: 
        radial-gradient(ellipse at 20% 20%, rgba(255, 107, 53, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 80%, rgba(230, 57, 0, 0.2) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 50%, rgba(255, 107, 53, 0.05) 0%, transparent 70%);
}

[data-theme="galaxy"] body::before {
    background: 
        radial-gradient(ellipse at 20% 20%, rgba(168, 85, 247, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 80%, rgba(124, 58, 237, 0.2) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 50%, rgba(168, 85, 247, 0.05) 0%, transparent 70%);
}

[data-theme="gold"] body::before {
    background: 
        radial-gradient(ellipse at 20% 20%, rgba(255, 215, 0, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 80%, rgba(218, 165, 32, 0.2) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 50%, rgba(255, 215, 0, 0.05) 0%, transparent 70%);
}