:root[data-theme="light"] {
    --color-bg-canvas: #ffffff;
    --color-bg-elevated: #fafafa;
    --color-bg-sidebar: #f5f5f5;
    --color-text-primary: #1a1a1a;
    --color-text-secondary: #666666;
    --color-text-quaternary: #999999;
    --color-border: #e5e5e5;
    --color-accent: #2563eb;
    --color-accent-soft: #eff6ff;
    --color-positive: #22c55e;
    --color-danger: #ef4444;
    --color-warning: #f59e0b;
    --chart-1: #3b82f6;
    --chart-2: #ef4444;
    --chart-3: #33cabb;
    --chart-4: #a855f7;
    --chart-5: #6b7280;
    --code-bg: #f4f4f5;
    --code-text: #1a1a1a;
    --code-border: #e4e4e7;
    --pre-bg: #18181b;
    --pre-text: #e4e4e7;
    --blockquote-bg: #f9fafb;
    --blockquote-border: #e5e7eb;
    --table-header-bg: #f9fafb;
    --table-row-alt: #fafafa;
    --table-border: #e5e5e5;
    --toc-active: #2563eb;
    --kbd-bg: #f3f4f6;
    --kbd-border: #d1d5db;
    --shadow: rgba(0,0,0,0.06);
    --scrollbar: #d4d4d4;
    --scrollbar-hover: #a3a3a3;
}
:root[data-theme="dark"] {
    --color-bg-canvas: #0a0a0a;
    --color-bg-elevated: #141414;
    --color-bg-sidebar: #111111;
    --color-text-primary: #f5f5f5;
    --color-text-secondary: #a3a3a3;
    --color-text-quaternary: #737373;
    --color-border: #262626;
    --color-accent: #3b82f6;
    --color-accent-soft: #1e3a5f;
    --color-positive: #4ade80;
    --color-danger: #f87171;
    --color-warning: #fbbf24;
    --chart-1: #60a5fa;
    --chart-2: #f87171;
    --chart-3: #4ade80;
    --chart-4: #c084fc;
    --chart-5: #9ca3af;
    --code-bg: #1a1a1a;
    --code-text: #e5e5e5;
    --code-border: #333333;
    --pre-bg: #0f0f0f;
    --pre-text: #d4d4d8;
    --blockquote-bg: #141414;
    --blockquote-border: #262626;
    --table-header-bg: #141414;
    --table-row-alt: #111111;
    --table-border: #262626;
    --toc-active: #60a5fa;
    --kbd-bg: #262626;
    --kbd-border: #404040;
    --shadow: rgba(0,0,0,0.3);
    --scrollbar: #404040;
    --scrollbar-hover: #525252;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: "Microsoft JhengHei", "PingFang SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
    background: var(--color-bg-canvas);
    color: var(--color-text-primary);
    line-height: 1.6;
    transition: background 0.3s, color 0.3s;
}

img {
    max-width: 100%;
    vertical-align: bottom;
}

.container {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 20px;
}

.mr-3 {
    margin-right: 1.5rem!important;
}

.mr-2 {
    margin-right: 1rem!important;
}

.mx-2 {
    margin-right: 1rem!important;
    margin-left: 1rem!important;
}

.text-secondary {
    color: var(--color-text-secondary)!important;
}

a {
    color: var(--color-accent);
    text-decoration: none;
}

.d-flex {
    display: flex;
}

.justify-content-between {
    -ms-flex-pack: justify!important;
    justify-content: space-between !important;
}

.align-items-center {
    -ms-flex-align: center!important;
    align-items: center !important;
}

.small {
    font-size: .875rem;
}

.img-avatar-32 {
    width: 32px;
    height: 32px;
}
.img-avatar {
    -webkit-box-pack: center;
    -ms-flex-pack: center;
    justify-content: center;
    vertical-align: middle;
    -webkit-border-radius: 50%;
    border-radius: 50%;
    border: 1px solid var(--color-border);
    text-align: center;
}

.user-hero.dropdown {
    cursor: pointer;
}

.dropdown {
    position: relative; /* 设置相对定位，使下拉内容绝对定位相对于此容器 */
    display: inline-block;
}

.dropdown-menu {
    display: none; /* 默认隐藏 */
    position: absolute; /* 绝对定位 */
    background-color: var(--color-bg-canvas);
    min-width: 120px; /* 可自定义宽度 */
    box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2); /* 阴影效果 */
    z-index: 1;
    list-style: none;
    padding: 15px 0px;
    left: -50%;
    border: 1px solid var(--color-border);
}
.dropdown-menu li a {
    display: block;
    width: 100%;
    padding: .25rem 1.5rem;
    clear: both;
    font-weight: 400;
    color: var(--color-text-secondary);
    text-align: inherit;
    white-space: nowrap;
    background-color: transparent;
    border: 0;
}

.dropdown-menu li a:hover {
    background-color: var(--color-bg-elevated);
}

.dropdown:hover .dropdown-menu {
    display: block; /* 悬停显示下拉菜单 */
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--scrollbar); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--scrollbar-hover); }


/* ===== 导航栏 ===== */
.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 100px;
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    background: var(--color-bg-canvas);
    z-index: 100;
    transition: background 0.3s, border-color 0.3s;
}
.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    font-size: 20px;
    color: var(--color-text-primary);
    text-decoration: none;
}
.nav-links {
    display: flex;
    gap: 32px;
}
.nav-links a {
    text-decoration: none;
    color: var(--color-text-secondary);
    font-weight: 500;
    font-size: 15px;
    transition: color 0.2s;
}
.nav-links a:hover,
.nav-links a.active {
    color: var(--color-accent);
}
.nav-actions {
    display: flex;
    gap: 12px;
    align-items: center;
}
.icon-btn {
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
    border-radius: 8px;
    color: var(--color-text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s, color 0.2s;
}
.icon-btn:hover {
    background: var(--color-bg-elevated);
}
.btn-primary {
    background: var(--color-accent);
    color: white;
    border: none;
    padding: 8px 18px;
    border-radius: 4px;
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    transition: opacity 0.2s;
}
.btn-primary:hover { opacity: 0.9; }

/* ===== Hero 区 ===== */
.hero {
    padding: 80px 100px;
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 60px;
    align-items: center;
    border-bottom: 1px solid var(--color-border);
}
.hero-label {
    font-size: 13px;
    color: var(--color-text-quaternary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 12px;
}
.hero h1 {
    font-size: 42px;
    font-weight: 500;
    color: var(--color-text-primary);
    line-height: 1.2;
    margin-bottom: 20px;
    letter-spacing: 2px;
}
.hero-desc {
    font-size: 16px;
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: 32px;
}
.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}
.btn-green {
    background: var(--color-positive);
    color: white;
    border: none;
    padding: 12px 28px;
    border-radius: 4px;
    font-weight: 600;
    font-size: 15px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    transition: opacity 0.2s;
}
.btn-green:hover { opacity: 0.9; }
.btn-outline {
    background: transparent;
    color: var(--color-text-primary);
    border: 1px solid var(--color-border);
    padding: 12px 28px;
    border-radius: 4px;
    font-weight: 600;
    font-size: 15px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    transition: all 0.2s;
}
.btn-outline:hover {
    border-color: var(--color-text-primary);
}

.dashboard-preview {
    background: var(--color-bg-elevated);
    border-radius: 8px;
    padding: 5px;
    border: 1px solid var(--color-border);
    overflow: hidden;
    box-shadow: 0 4px 24px var(--shadow);
    transition: background 0.3s, border-color 0.3s;
}

.dashboard-preview img {
    border-radius: 8px;
}
.dash-header {
    background: var(--color-bg-canvas);
    padding: 10px 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    border-bottom: 1px solid var(--color-border);
}
.dash-header-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--color-text-secondary);
}
.dash-header-right {
    margin-left: auto;
    display: flex;
    gap: 8px;
    align-items: center;
}
.dash-body {
    display: flex;
    height: 280px;
}
.dash-sidebar {
    width: 140px;
    background: var(--color-bg-canvas);
    border-right: 1px solid var(--color-border);
    padding: 12px;
}
.dash-sidebar-item {
    height: 8px;
    background: var(--color-border);
    border-radius: 4px;
    margin-bottom: 10px;
}
.dash-content {
    flex: 1;
    padding: 16px;
}
.stat-cards {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr 1fr;
    gap: 12px;
    margin-bottom: 16px;
}
.stat-card {
    border-radius: 10px;
    padding: 16px;
    color: white;
}
.stat-card .value {
    font-size: 18px;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}
.stat-card .label {
    font-size: 12px;
    opacity: 0.85;
}
.charts-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}
.chart-box {
    border: 1px solid var(--color-border);
    border-radius: 10px;
    padding: 12px;
}
.chart-box-title {
    font-size: 12px;
    color: var(--color-text-quaternary);
    margin-bottom: 8px;
}
.bar-chart {
    display: flex;
    align-items: flex-end;
    gap: 6px;
    height: 60px;
}
.bar {
    flex: 1;
    border-radius: 3px;
    min-height: 4px;
}

.section-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: 24px;
}
.section-title a {
    font-weight: 500;
    color: var(--color-accent);
}
.section { padding: 40px 0; }

.version-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}
.version-card {
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: 28px;
    background: var(--color-bg-elevated);
    transition: all 0.2s;
    cursor: pointer;
    text-decoration: none;
    color: inherit;
    display: block;
}
.version-card:hover {
    border-color: var(--color-text-primary);
}
.version-card-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}
.version-badge {
    width: 40px;
    height: 40px;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 14px;
}
.version-card h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-text-primary);
    margin: 0;
}
.version-card p {
    font-size: 14px;
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin-bottom: 16px;
}
.version-card .link {
    color: var(--color-accent);
    font-size: 14px;
    font-weight: 500;
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}
.tool-card {
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: 24px;
    text-align: center;
    background: var(--color-bg-elevated);
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
    color: inherit;
    display: block;
}
.tool-card:hover {
    border-color: var(--color-text-primary);
}
.tool-icon {
    width: 48px;
    height: 48px;
    border-radius: 8px;
    margin: 0 auto 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}
.tool-card h4 {
    font-size: 15px;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 6px;
}
.tool-card p {
    font-size: 13px;
    color: var(--color-text-quaternary);
    margin: 0;
}

.games-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}
.game-card {
    border: 1px solid var(--color-border);
    border-radius: 8px;
    overflow: hidden;
    background: var(--color-bg-elevated);
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
    color: inherit;
    display: block;
}
.game-card:hover {
    border-color: var(--color-text-primary);
}
.game-cover {
    height: 140px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.game-info {
    padding: 20px;
}
.game-info h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 6px;
}
.game-info p {
    font-size: 13px;
    color: var(--color-text-secondary);
    margin: 0;
}

.cheatsheets-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}
.cheatsheet-card {
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: 20px;
    background: var(--color-bg-elevated);
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
    color: inherit;
    display: block;
}
.cheatsheet-card:hover {
    border-color: var(--color-text-primary);
}
.cheatsheet-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
}
.cheatsheet-tag {
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    color: white;
}
.cheatsheet-card h4 {
    font-size: 15px;
    font-weight: 600;
    color: var(--color-text-primary);
}
.cheatsheet-card p {
    font-size: 13px;
    color: var(--color-text-secondary);
    margin: 0;
    line-height: 1.5;
}

.footer {
    border-top: 1px solid var(--color-border);
    padding: 40px 0;
    margin-top: 40px;
    text-align: center;
}
.footer-links {
    display: flex;
    justify-content: center;
    gap: 24px;
    margin-bottom: 20px;
}
.footer-links a {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.2s;
}
.footer-links a:hover {
    color: var(--color-text-primary);
}
.footer p {
    font-size: 13px;
    color: var(--color-text-quaternary);
    margin: 0;
}

/* ===== Layout ===== */
.page-layout {
    display: grid;
    grid-template-columns: 260px 1fr 220px;
    max-width: 1440px;
    margin: 0 auto;
    min-height: calc(100vh - 60px);
}

/* ===== Left Sidebar ===== */
.sidebar-left {
    border-right: 1px solid var(--color-border);
    padding: 24px 0;
    position: sticky;
    top: 60px;
    height: calc(100vh - 60px);
    overflow-y: auto;
    background: var(--color-bg-sidebar);
    transition: background 0.3s, border-color 0.3s;
}
.sidebar-title {
    font-size: 12px;
    font-weight: 600;
    color: var(--color-text-quaternary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 0 20px 12px;
}
.sidebar-list {
    list-style: none;
}
.sidebar-list li a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 20px;
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: 14px;
    transition: all 0.15s;
    border-left: 3px solid transparent;
}
.sidebar-list li a:hover {
    color: var(--color-text-primary);
    background: var(--color-bg-elevated);
}
.sidebar-list li a.active {
    color: var(--color-accent);
    background: var(--color-accent-soft);
    border-left-color: var(--color-accent);
    font-weight: 600;
}
.sidebar-tag {
    font-size: 10px;
    padding: 2px 6px;
    border-radius: 4px;
    font-weight: 600;
    color: white;
    flex-shrink: 0;
}

/* ===== Main Content ===== */
.main-content {
    padding: 40px 48px;
    max-width: 880px;
    margin: 0 auto;
    width: 100%;
}
.main-content h1 {
    font-size: 32px;
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: 8px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--color-border);
}
.main-content .subtitle {
    font-size: 14px;
    color: var(--color-text-quaternary);
    margin-bottom: 32px;
    display: flex;
    gap: 16px;
    align-items: center;
}
.main-content h2 {
    font-size: 22px;
    font-weight: 700;
    color: var(--color-text-primary);
    margin: 40px 0 16px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--color-border);
    scroll-margin-top: 80px;
}
.main-content h3 {
    font-size: 17px;
    font-weight: 600;
    color: var(--color-text-primary);
    margin: 28px 0 12px;
    scroll-margin-top: 80px;
}
.main-content h4 {
    font-size: 15px;
    font-weight: 600;
    color: var(--color-text-secondary);
    margin: 20px 0 8px;
}
.main-content p {
    margin-bottom: 14px;
    color: var(--color-text-secondary);
}
.main-content ul, .main-content ol {
    margin: 12px 0 16px 20px;
    color: var(--color-text-secondary);
}
.main-content li {
    margin-bottom: 6px;
}
.main-content a {
    color: var(--color-accent);
    text-decoration: none;
}
.main-content a:hover { text-decoration: underline; }

/* Code */
.main-content code {
    font-family: "SF Mono", Monaco, "Fira Code", Consolas, monospace;
    font-size: 13px;
    background: var(--code-bg);
    color: var(--code-text);
    padding: 2px 6px;
    border-radius: 5px;
    border: 1px solid var(--code-border);
}
.main-content pre {
    background: var(--pre-bg);
    color: var(--pre-text);
    padding: 16px 20px;
    border-radius: 8px;
    overflow-x: auto;
    margin: 16px 0;
    font-family: "SF Mono", Monaco, "Cascadia Code", "Fira Code", Consolas, monospace;
    font-size: 13px;
    line-height: 1.6;
    border: 1px solid var(--color-border);
}
.main-content pre code {
    background: none;
    color: inherit;
    padding: 0;
    border: none;
    font-size: inherit;
}

/* Syntax highlighting colors */
.main-content pre .sh-comment { color: #6b7280; }
.main-content pre .sh-keyword { color: #c084fc; }
.main-content pre .sh-string { color: #4ade80; }
.main-content pre .sh-number { color: #fbbf24; }
.main-content pre .sh-function { color: #60a5fa; }
.main-content pre .sh-flag { color: #f87171; }
.main-content pre .sh-prompt { color: #22c55e; }

/* Table */
.main-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 16px 0;
    font-size: 14px;
}
.main-content th {
    background: var(--table-header-bg);
    color: var(--color-text-primary);
    font-weight: 600;
    text-align: left;
    padding: 10px 14px;
    border-bottom: 2px solid var(--table-border);
}
.main-content td {
    padding: 10px 14px;
    border-bottom: 1px solid var(--table-border);
    color: var(--color-text-secondary);
}
.main-content tr:nth-child(even) {
    background: var(--table-row-alt);
}
.main-content tr:hover {
    background: var(--color-bg-elevated);
}

/* Blockquote */
.main-content blockquote {
    border-left: 4px solid var(--color-accent);
    background: var(--blockquote-bg);
    padding: 12px 16px;
    margin: 16px 0;
    border-radius: 0 8px 8px 0;
    color: var(--color-text-secondary);
    font-size: 14px;
}
.main-content blockquote p { margin: 0; }

/* Alert boxes */
.alert {
    padding: 14px 18px;
    border-radius: 8px;
    margin: 16px 0;
    font-size: 14px;
    display: flex;
    gap: 10px;
    align-items: flex-start;
}
.alert-info {
    background: var(--color-accent-soft);
    border: 1px solid var(--color-accent);
    color: var(--color-text-primary);
}
.alert-warning {
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid var(--color-warning);
    color: var(--color-text-primary);
}
.alert-danger {
    background: rgba(239, 68, 68, 0.08);
    border: 1px solid var(--color-danger);
    color: var(--color-text-primary);
}

/* KBD */
.main-content kbd {
    font-family: "SF Mono", Monaco, Consolas, monospace;
    font-size: 12px;
    background: var(--kbd-bg);
    border: 1px solid var(--kbd-border);
    border-bottom-width: 2px;
    padding: 2px 6px;
    border-radius: 5px;
    color: var(--color-text-primary);
}

/* HR */
.main-content hr {
    border: none;
    border-top: 1px solid var(--color-border);
    margin: 32px 0;
}

/* ===== Right TOC ===== */
.sidebar-right {
    border-left: 1px solid var(--color-border);
    padding: 24px 0;
    position: sticky;
    top: 60px;
    height: calc(100vh - 60px);
    overflow-y: auto;
    background: var(--color-bg-sidebar);
    transition: background 0.3s, border-color 0.3s;
}
.toc-title {
    font-size: 12px;
    font-weight: 600;
    color: var(--color-text-quaternary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 0 20px 12px;
}
.toc-list {
    list-style: none;
}
.toc-list li a {
    display: block;
    padding: 6px 20px;
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: 13px;
    transition: all 0.15s;
    border-left: 2px solid transparent;
    line-height: 1.4;
}
.toc-list li a:hover {
    color: var(--color-text-primary);
}
.toc-list li a.active {
    color: var(--toc-active);
    border-left-color: var(--toc-active);
    font-weight: 600;
}
.toc-list li.toc-h3 a {
    padding-left: 32px;
    font-size: 12px;
}

/* ===== Responsive ===== */
@media (max-width: 1100px) {
    .page-layout { grid-template-columns: 220px 1fr; }
    .sidebar-right { display: none; }
}
@media (max-width: 900px) {
    .footer { padding: 40px 20px; }
    .navbar { padding: 16px 30px; }
    .hero { grid-template-columns: 1fr; gap: 40px; padding: 30px; }
    .hero h1 { font-size: 32px; }
    .version-cards, .tools-grid, .games-grid, .cheatsheets-grid { grid-template-columns: 1fr 1fr; }
    .stat-cards { grid-template-columns: 1fr 1fr; }
    .nav-links { display: none; }
}
@media (max-width: 800px) {
    .page-layout { grid-template-columns: 1fr; }
    .sidebar-left { display: none; }
    .main-content { padding: 24px 20px; }
    .nav-links { display: none; }
}
@media (max-width: 600px) {
    .version-cards, .tools-grid, .games-grid, .cheatsheets-grid { grid-template-columns: 1fr; }
    .stat-cards { grid-template-columns: 1fr 1fr; }
    .dash-sidebar { display: none; }
    .hero h1 { font-size: 26px; }
}