@charset "UTF-8";

/* 高级配色与主题变体字典 */
:root {
    --bg-main: #ffffff;
    --bg-page: #fafafa;
    --bg-sidebar: #f7f7f8;
    --bg-modal-overlay: rgba(0, 0, 0, 0.4);
    --border-color: #eaecef;
    --border-focus: #c1c7d0;
    
    --text-main: #1d1d1f;
    --text-muted: #6e6e73;
    --text-link: #0066cc;
    
    --nav-active-bg: rgba(0, 102, 204, 0.08);
    --nav-hover-bg: rgba(0, 0, 0, 0.04);
    
    --code-bg: #f4f4f5;
    --card-shadow: 0 4px 20px rgba(0,0,0,0.03);
    --modal-shadow: 0 20px 40px rgba(0,0,0,0.12);
    --topbar-shadow: 0 1px 3px rgba(0,0,0,0.02);
    
    --sidebar-width: 270px;
    --accent: #2563eb;
    --accent-glow: rgba(37, 99, 235, 0.15);
}

[data-theme="dark"] {
    --bg-main: #0d0d0f;
    --bg-page: #000000;
    --bg-sidebar: #141417;
    --bg-modal-overlay: rgba(0, 0, 0, 0.7);
    --border-color: #27272a;
    --border-focus: #3f3f46;
    
    --text-main: #f5f5f7;
    --text-muted: #a1a1aa;
    --text-link: #4da6ff;
    
    --nav-active-bg: rgba(77, 166, 255, 0.12);
    --nav-hover-bg: rgba(255, 255, 255, 0.05);
    
    --code-bg: #1e1e20;
    --card-shadow: 0 4px 20px rgba(0,0,0,0.4);
    --modal-shadow: 0 20px 50px rgba(0,0,0,0.7);
    --topbar-shadow: 0 1px 3px rgba(0,0,0,0.3);
    
    --accent: #4da6ff;
    --accent-glow: rgba(77, 166, 255, 0.2);
}

/* ================= 基础重置 ================= */
* { box-sizing: border-box; margin: 0; padding: 0; }

body {
    /* 完全剥离外部请求的系统级抗锯齿字体安全栈 */
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol';
    background-color: var(--bg-main);
    color: var(--text-main);
    display: flex;
    min-height: 100vh;
    font-size: 15px;
    line-height: 1.6;
    transition: background-color 0.25s ease, color 0.25s ease;
    -webkit-font-smoothing: antialiased;
}

/* ================= 左侧导航栏 ================= */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-sidebar);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    z-index: 100;
}

.brand {
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 12px;
}
.logo-box {
    width: 34px; height: 34px;
    background: var(--accent);
    border-radius: 8px;
    display: flex; align-items: center; justify-content: center;
    color: white; font-size: 18px;
    box-shadow: 0 2px 10px var(--accent-glow);
}
.brand-text h1 { font-size: 16px; font-weight: 700; letter-spacing: -0.2px; line-height: 1.2; }
.brand-text p { font-size: 12px; color: var(--text-muted); margin-top: 2px; }

.sidebar-search {
    margin: 0 20px 16px;
    display: flex; align-items: center;
    background: var(--bg-main);
    border: 1px solid var(--border-color); border-radius: 6px;
    padding: 6px 10px;
    color: var(--text-muted); font-size: 13px;
}
.sidebar-search i { font-size: 15px; margin-right: 8px; }
.sidebar-search input { border: none; background: transparent; outline: none; flex: 1; color: var(--text-main); }
.cmd-badge {
    font-size: 10px; border: 1px solid var(--border-color); padding: 2px 5px;
    border-radius: 4px; background: var(--bg-page);
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

.nav-menu { flex: 1; overflow-y: auto; padding: 10px 16px; scrollbar-width: thin; scrollbar-color: var(--border-color) transparent; }
.nav-group h3 { font-size: 12px; color: var(--text-muted); font-weight: 600; margin: 24px 0 8px 8px; }
.nav-group:first-child h3 { margin-top: 0; }
.nav-item {
    display: flex; align-items: center; padding: 8px 12px;
    margin-bottom: 2px; border-radius: 6px;
    color: var(--text-muted); text-decoration: none;
    font-size: 14px; font-weight: 500; transition: all 0.2s;
}
.nav-item i { font-size: 16px; margin-right: 10px; transition: transform 0.2s; }
.nav-item:hover { background: var(--nav-hover-bg); color: var(--text-main); }
.nav-item.active { background: var(--nav-active-bg); color: var(--accent); font-weight: 600; }

.sidebar-footer {
    padding: 16px 24px; border-top: 1px solid var(--border-color);
    display: flex; align-items: center; justify-content: space-between;
}
.footer-link { display: flex; align-items: center; color: var(--text-muted); text-decoration: none; font-size: 13px; gap: 6px; }
.footer-link:hover { color: var(--text-main); }
.version-badge { font-size: 11px; background: var(--border-color); padding: 2px 6px; border-radius: 4px; color: var(--text-muted); }

/* ================= 右侧外围 ================= */
.content-wrapper {
    flex: 1; margin-left: var(--sidebar-width);
    display: flex; flex-direction: column; min-height: 100vh;
    background-color: var(--bg-main);
}

.top-bar {
    height: 60px;
    background: rgba(var(--bg-main), 0.85); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color); box-shadow: var(--topbar-shadow);
    display: flex; align-items: center; justify-content: space-between;
    padding: 0 40px; position: sticky; top: 0; z-index: 10;
}
.breadcrumbs { font-size: 13px; color: var(--text-muted); display: flex; align-items: center; font-weight: 500; }
.bread-icon { margin-right: 8px; font-size: 15px;}
.separator { margin: 0 8px; opacity: 0.4; font-size: 16px;}
.current-node { color: var(--text-main); font-weight: 600; }

.header-actions { display: flex; align-items: center; gap: 16px; }

/* 顶端按钮体系 */
.header-btn {
    display: inline-flex; align-items: center; gap: 6px;
    background: none; border: 1px solid var(--border-color);
    padding: 6px 12px; border-radius: 6px;
    font-size: 13px; font-weight: 500; font-family: inherit;
    color: var(--text-main); cursor: pointer; transition: all 0.2s;
}
.header-btn:hover { background: var(--nav-hover-bg); }
.header-btn.primary-outline { border-color: var(--accent); color: var(--accent); background: var(--nav-active-bg); }
.header-btn.primary-outline:hover { background: var(--accent); color: #fff; }

.delimiter { width: 1px; height: 16px; background: var(--border-color); }

.theme-toggle {
    background: transparent; border: none; border-radius: 6px;
    width: 32px; height: 32px; font-size: 16px;
    cursor: pointer; color: var(--text-muted);
    display: flex; align-items: center; justify-content: center; transition: all 0.2s;
}
.theme-toggle:hover { color: var(--text-main); background: var(--nav-hover-bg); }

/* 主区域 */
.content-container {
    flex: 1; padding: 40px 60px; display: flex; justify-content: center; background: var(--bg-page);
}

/* ================= Markdown 排版体系 (Github 极客原生复刻) ================= */
.markdown-body {
    max-width: 880px; width: 100%; padding: 45px 55px;
    background: var(--bg-main); border: 1px solid var(--border-color);
    border-radius: 6px; box-shadow: var(--card-shadow);
    color: var(--text-main); word-wrap: break-word;
    font-size: 16px; line-height: 1.6;
    animation: slideUp 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes slideUp { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

.markdown-body > *:first-child { margin-top: 0 !important; }
.markdown-body > *:last-child { margin-bottom: 0 !important; }

.markdown-body h1, .markdown-body h2, .markdown-body h3, .markdown-body h4, .markdown-body h5, .markdown-body h6 { 
    margin-top: 24px; margin-bottom: 16px; font-weight: 600; line-height: 1.25; 
}
.markdown-body h1 { font-size: 2em; padding-bottom: 0.3em; border-bottom: 1px solid var(--border-color); }
.markdown-body h2 { font-size: 1.5em; padding-bottom: 0.3em; border-bottom: 1px solid var(--border-color); }
.markdown-body h3 { font-size: 1.25em; }

.markdown-body p { margin-top: 0; margin-bottom: 16px; }
.markdown-body a { color: var(--accent); text-decoration: none; }
.markdown-body a:hover { text-decoration: underline; }
.markdown-body strong { font-weight: 600; color: var(--text-main); }

.markdown-body img {
    max-width: 100%; border-radius: 6px; display: block; margin: 24px auto; background-color: transparent;
}

.markdown-body blockquote { margin: 0 0 16px 0; padding: 0 1em; color: var(--text-muted); background: transparent; border-left: 0.25em solid var(--border-focus); border-radius: 0; }
.markdown-body blockquote > :first-child { margin-top: 0; }
.markdown-body blockquote > :last-child { margin-bottom: 0; }

.markdown-body ul, .markdown-body ol { margin-top: 0; margin-bottom: 16px; padding-left: 2em; }
.markdown-body li { margin-top: 0.25em; }
.markdown-body li > p { margin-top: 16px; }
.markdown-body li + li { margin-top: 0.25em; }

.markdown-body hr { height: 0.25em; padding: 0; margin: 24px 0; background-color: var(--border-color); border: 0; }

.markdown-body code {
    font-family: ui-monospace, SFMono-Regular, SF Mono, Menlo, Consolas, Liberation Mono, monospace;
    font-size: 85%; background-color: rgba(175, 184, 193, 0.2); padding: 0.2em 0.4em; border-radius: 6px; margin: 0; color: var(--text-main);
}
[data-theme="dark"] .markdown-body code { background-color: rgba(110, 118, 129, 0.4); }

.markdown-body pre { background-color: var(--bg-page); border: 1px solid var(--border-color); border-radius: 6px; padding: 16px; overflow: auto; margin-top: 0; margin-bottom: 16px; font-size: 85%; line-height: 1.45; }
.markdown-body pre code { background: transparent; padding: 0; border: 0; margin: 0; word-break: normal; white-space: pre; font-size: 100%; color: var(--text-main); }

.markdown-body blockquote:has(strong:contains("WARNING")),
.markdown-body blockquote:has(strong:contains("CAUTION")),
.markdown-body blockquote:has(strong:contains("🔴")),
.markdown-body blockquote:has(strong:contains("💡")) {
    border-left-width: 4px; padding: 16px; border-radius: 6px;
}
.markdown-body blockquote:has(strong:contains("💡")) {
    border-left-color: #eab308; background: rgba(234, 179, 8, 0.05); color: #854d0e;
}
[data-theme="dark"] .markdown-body blockquote:has(strong:contains("💡")) { color: #fef08a; }

.markdown-body blockquote:has(strong:contains("WARNING")),
.markdown-body blockquote:has(strong:contains("CAUTION")),
.markdown-body blockquote:has(strong:contains("🔴")) {
    border-left-color: #ef4444; background: rgba(239, 68, 68, 0.05); color: #b91c1c;
}
[data-theme="dark"] .markdown-body blockquote:has(strong:contains("WARNING")),
[data-theme="dark"] .markdown-body blockquote:has(strong:contains("CAUTION")),
[data-theme="dark"] .markdown-body blockquote:has(strong:contains("🔴")) { color: #fca5a5; }

/* ================= 模态弹窗系统 (联系我们) ================= */
.modal-overlay {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background: var(--bg-modal-overlay);
    backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px);
    z-index: 1000;
    display: flex; align-items: center; justify-content: center;
}
.modal-content {
    background: var(--bg-main); width: 380px; max-width: 90%;
    border-radius: 20px; box-shadow: var(--modal-shadow);
    position: relative; overflow: hidden;
    border: 1px solid var(--border-color);
}
.modal-close {
    position: absolute; top: 16px; right: 16px;
    background: none; border: none; font-size: 20px; color: var(--text-muted);
    cursor: pointer; padding: 4px; border-radius: 50%; transition: 0.2s;
}
.modal-close:hover { background: var(--bg-sidebar); color: var(--text-main); }

.modal-header { text-align: center; padding: 32px 32px 16px; border-bottom: 1px solid var(--border-color); background: var(--bg-sidebar); }
.modal-icon {
    width: 60px; height: 60px; margin: 0 auto 16px;
    background: linear-gradient(135deg, #7c3aed, #2563eb); border-radius: 16px;
    display: flex; align-items: center; justify-content: center;
    color: white; font-size: 28px; box-shadow: 0 8px 24px rgba(37, 99, 235, 0.3);
}
.modal-header h2 { font-size: 18px; font-weight: 700; color: var(--text-main); margin-bottom: 4px; }
.modal-header p { font-size: 12px; color: var(--text-muted); }

.modal-body { padding: 32px; text-align: center; }
.qr-bg {
    width: 200px; height: 200px; margin: 0 auto 16px;
    background: #fff; border-radius: 12px;
    padding: 10px; border: 1px solid var(--border-color);
}
.qr-img { width: 100%; height: 100%; object-fit: contain; }
.qr-desc { font-size: 13px; color: var(--text-muted); line-height: 1.5; }

.modal-footer-tags {
    display: flex; gap: 8px; justify-content: center; padding: 0 32px 32px;
}
.info-tag {
    display: flex; align-items: center; gap: 4px;
    padding: 4px 10px; background: var(--bg-sidebar);
    border: 1px solid var(--border-color); border-radius: 20px;
    font-size: 11px; color: var(--text-muted);
}

/* 动效与其余补丁 */
.skeleton-screen { animation: fadeInOut 2s infinite linear; }
@keyframes fadeInOut { 0%, 100% { opacity: 0.3; } 50% { opacity: 0.7; } }
.sk-header { height: 32px; width: 50%; background: var(--border-color); border-radius: 4px; margin-bottom: 24px; }
.sk-sub { height: 20px; width: 30%; background: var(--border-color); border-radius: 4px; margin-bottom: 16px; }
.sk-line { height: 14px; background: var(--bg-sidebar); border-radius: 4px; margin-bottom: 12px; }
.f-width { width: 100%; } .m-width { width: 80%; } .s-width { width: 60%; }

footer { padding: 24px 40px; background: transparent; color: var(--text-muted); font-size: 12px; text-align: center; }

@media (max-width: 768px) {
    .sidebar { transform: translateX(-100%); }
    .content-wrapper { margin-left: 0; }
    .mobile-menu-btn { display: block; font-size: 24px; cursor: pointer; color: var(--text-main); }
    .content-container { padding: 20px 15px; } .markdown-body { padding: 24px 20px; }
}