2026-01-30 10:21:29 +08:00
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import streamlit as st
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def inject_global_theme():
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"""注入全局 CSS 主题,极简克制的样式优化"""
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st.markdown(
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"""
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<style>
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/* 使用 Google Fonts */
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@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=Noto+Sans+SC:wght@400;500;600&display=swap');
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2026-04-30 18:37:46 +08:00
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/* CSS 变量定义 */
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:root {
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--primary-color: #2563EB;
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--primary-hover: #1D4ED8;
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--background-color: #FFFFFF;
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--secondary-bg: #F7FAFC;
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--text-color: #1A202C;
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--text-secondary: #718096;
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--border-color: #E2E8F0;
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--border-radius: 10px;
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--shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
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--shadow-md: 0 4px 6px rgba(0,0,0,0.07);
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}
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/* 全局字体 */
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html, body, .stApp {
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font-family: "Inter", "Noto Sans SC", system-ui, sans-serif;
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}
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/* ========== 侧边栏样式 ========== */
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section[data-testid="stSidebar"] {
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background: var(--secondary-bg);
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border-right: 1px solid var(--border-color);
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}
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/* 侧边栏 expander 样式 */
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section[data-testid="stSidebar"] .streamlit-expanderHeader {
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background: var(--background-color);
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border-radius: 8px;
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border: 1px solid var(--border-color);
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font-weight: 600;
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padding: 0.75rem 1rem;
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}
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section[data-testid="stSidebar"] .streamlit-expanderContent {
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background: var(--background-color);
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border-radius: 0 0 8px 8px;
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border: 1px solid var(--border-color);
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border-top: none;
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padding: 1rem;
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}
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/* ========== 按钮样式 ========== */
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button {
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border-radius: var(--border-radius) !important;
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font-weight: 500;
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transition: all 0.2s ease;
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}
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button[kind="primary"] {
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background-color: var(--primary-color) !important;
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color: white !important;
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border: none !important;
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}
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button[kind="primary"]:hover {
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background-color: var(--primary-hover) !important;
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box-shadow: var(--shadow-md);
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transform: translateY(-1px);
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}
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/* ========== 输入框样式 ========== */
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.stTextInput input,
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.stTextArea textarea,
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.stNumberInput input {
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border-radius: var(--border-radius) !important;
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border: 1px solid var(--border-color) !important;
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padding: 0.75rem;
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transition: all 0.2s ease;
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}
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.stTextInput input:focus,
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.stTextArea textarea:focus {
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border-color: var(--primary-color) !important;
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box-shadow: 0 0 0 3px rgba(37,99,235,0.1);
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outline: none;
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}
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/* ========== 选择框样式 ========== */
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.stSelectbox [data-baseweb="select"] > div {
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border-radius: var(--border-radius) !important;
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border: 1px solid var(--border-color) !important;
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min-height: 2.5rem;
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}
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.stSelectbox [data-baseweb="select"]:hover > div {
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border-color: #CBD5E0 !important;
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}
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.stSelectbox [data-baseweb="select"]:focus-within > div {
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border-color: var(--primary-color) !important;
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box-shadow: 0 0 0 3px rgba(37,99,235,0.1) !important;
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}
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/* ========== 多选框样式 ========== */
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.stMultiSelect [data-baseweb="select"] > div {
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border-radius: var(--border-radius) !important;
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border: 1px solid var(--border-color) !important;
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}
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.stMultiSelect [data-baseweb="tag"] {
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border-radius: 6px !important;
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background: var(--primary-color) !important;
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color: white !important;
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border: none !important;
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}
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/* ========== Tabs 样式 ========== */
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.stTabs [data-baseweb="tab-list"] {
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gap: 0px;
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border-bottom: 2px solid var(--border-color);
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overflow-x: auto;
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flex-wrap: nowrap;
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}
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.stTabs [data-baseweb="tab"] {
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padding: 0.75rem 1.25rem;
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border-radius: 0 !important;
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background: transparent;
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color: var(--text-secondary);
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font-weight: 500;
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transition: all 0.2s ease;
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white-space: nowrap;
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}
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.stTabs [data-baseweb="tab"]:hover {
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background: rgba(37,99,235,0.04);
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color: var(--text-color);
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}
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.stTabs [aria-selected="true"] {
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background: transparent !important;
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color: var(--primary-color) !important;
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font-weight: 600 !important;
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border-bottom: 2px solid var(--primary-color) !important;
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margin-bottom: -2px;
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}
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/* ========== Expander 样式 ========== */
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.streamlit-expanderHeader {
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border-radius: var(--border-radius);
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background: var(--secondary-bg);
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border: 1px solid var(--border-color);
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font-weight: 500;
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}
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/* ========== 容器边框 ========== */
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div[data-testid="stVerticalBlockBorderWrapper"] {
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border-radius: var(--border-radius);
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border: 1px solid var(--border-color);
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box-shadow: var(--shadow-sm);
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}
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/* ========== Metric 卡片样式 ========== */
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[data-testid="stMetric"] {
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background: var(--background-color);
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border-radius: var(--border-radius);
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padding: 1rem;
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border: 1px solid var(--border-color);
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box-shadow: var(--shadow-sm);
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}
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[data-testid="stMetric"]:hover {
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box-shadow: var(--shadow-md);
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transform: translateY(-2px);
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transition: all 0.2s ease;
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}
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/* ========== 响应式设计 ========== */
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@media (max-width: 768px) {
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/* KPI 卡片改为 2 列 */
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[data-testid="stHorizontalBlock"] {
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flex-wrap: wrap;
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}
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[data-testid="stHorizontalBlock"] > div {
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flex: 1 1 45%;
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margin-bottom: 0.5rem;
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}
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/* Tab 栏可滚动 */
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.stTabs [data-baseweb="tab-list"] {
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overflow-x: auto;
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-webkit-overflow-scrolling: touch;
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}
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.stTabs [data-baseweb="tab"] {
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padding: 0.5rem 0.75rem;
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font-size: 0.875rem;
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}
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/* 侧边栏全宽 */
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section[data-testid="stSidebar"] {
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width: 100% !important;
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min-width: unset !important;
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}
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/* 主内容区 padding */
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.main .block-container {
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padding: 1rem;
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}
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}
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@media (max-width: 480px) {
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/* KPI 卡片单列 */
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[data-testid="stHorizontalBlock"] > div {
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flex: 1 1 100%;
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}
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/* 标题缩小 */
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h1 {
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font-size: 1.5rem !important;
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}
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}
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/* ========== 滚动条美化 ========== */
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::-webkit-scrollbar {
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width: 6px;
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height: 6px;
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}
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::-webkit-scrollbar-track {
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background: var(--secondary-bg);
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}
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::-webkit-scrollbar-thumb {
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background: var(--border-color);
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border-radius: 3px;
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}
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::-webkit-scrollbar-thumb:hover {
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background: #A0AEC0;
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}
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/* ========== 选中文本颜色 ========== */
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::selection {
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background: rgba(37,99,235,0.2);
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color: var(--text-color);
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}
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</style>
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""",
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unsafe_allow_html=True,
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