/* ============================================================
   AI-Link 知识库 · 内嵌 wiki 样式（index.html #knowledge 区段）
   依赖 css.css 的 CSS 变量（--primary / --card-bg / ...）
   ============================================================ */

.brand-link { color: inherit; text-decoration: none; }

/* ============ #knowledge 区段：作为最后一屏，整页滚动 ============ */
.snap-knowledge { justify-content: flex-start; }

/* wiki 主体：左导航(sticky) + 右内容(随页面滚动) */
.wiki {
    display: grid;
    grid-template-columns: 256px minmax(0, 1fr);
    gap: 1.4rem;
    width: 100%;
    align-items: start;
    border: 1px solid var(--divider);
    border-radius: 12px;
    background: rgba(10, 10, 10, 0.35);
}

/* ---------------- 左侧导航（粘性，随页面滚动常驻） ---------------- */
.wiki-sidebar {
    position: sticky;
    top: 84px;
    align-self: start;
    max-height: calc(100vh - 100px);
    display: flex;
    flex-direction: column;
    min-height: 0;
    border-right: 1px solid var(--divider);
    border-radius: 12px 0 0 12px;
    background: rgba(0, 0, 0, 0.25);
}
.wiki-search-wrap { padding: 0.9rem 0.9rem 0.6rem; }
.wiki-search {
    width: 100%;
    background: rgba(0, 255, 65, 0.04);
    border: 1px solid rgba(0, 255, 65, 0.25);
    border-radius: 6px;
    color: var(--text-light);
    font-family: inherit;
    font-size: 0.85rem;
    padding: 0.45rem 0.7rem;
    outline: none;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.wiki-search:focus { border-color: var(--primary); box-shadow: 0 0 8px rgba(0, 255, 65, 0.25); }
.wiki-search::placeholder { color: var(--text-gray); }

.wiki-nav {
    flex: 1 1 auto;
    min-height: 0;
    overflow-y: auto;
    padding: 0.4rem 0.6rem 1rem;
    /* 隐藏侧栏导航的内部滚动条（仍可滚动）*/
    scrollbar-width: none;
    -ms-overflow-style: none;
}
.wiki-nav::-webkit-scrollbar { width: 0; height: 0; display: none; }
.wiki-group { margin-bottom: 1rem; }
.wiki-group-title {
    font-size: 0.72rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--text-gray);
    padding: 0.4rem 0.6rem;
    margin-bottom: 0.2rem;
}
.wiki-group-title::before { content: '// '; color: var(--primary); opacity: 0.7; }
.wiki-list { list-style: none; margin: 0; padding: 0; }
.wiki-list li { margin: 0; }
.wiki-link {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    color: var(--text-gray);
    text-decoration: none;
    font-size: 0.9rem;
    line-height: 1.4;
    padding: 0.5rem 0.6rem;
    border-radius: 6px;
    border-left: 2px solid transparent;
    transition: color 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}
.wiki-link:hover { color: var(--text-light); background: rgba(0, 255, 65, 0.05); }
.wiki-link.active {
    color: var(--primary);
    background: rgba(0, 255, 65, 0.09);
    border-left-color: var(--primary);
}
.wiki-tag-draft {
    margin-left: auto;
    font-size: 0.62rem;
    letter-spacing: 0;
    color: #ffcf4d;
    border: 1px solid rgba(255, 207, 77, 0.4);
    background: rgba(255, 207, 77, 0.08);
    border-radius: 4px;
    padding: 0.02rem 0.35rem;
    flex-shrink: 0;
}
.wiki-empty { color: var(--text-gray); font-size: 0.82rem; padding: 0.6rem; opacity: 0.7; }

/* ---------------- 右侧内容（随页面滚动，自然增高） ---------------- */
.wiki-main {
    min-width: 0;
    padding: 1.4rem 1.8rem 2.4rem;
    position: relative;
}
.wiki-breadcrumb {
    margin: -1.4rem -1.8rem 1.2rem;
    padding: 0.7rem 1.8rem;
    background: rgba(0, 0, 0, 0.25);
    border-bottom: 1px solid var(--divider);
    border-radius: 0 12px 0 0;
    font-size: 0.8rem;
    color: var(--text-gray);
    letter-spacing: 0.5px;
}
.wiki-breadcrumb a { color: var(--primary); text-decoration: none; cursor: pointer; }
.wiki-breadcrumb a:hover { text-decoration: underline; }
.wiki-breadcrumb .sep { margin: 0 0.45rem; opacity: 0.5; }

.wiki-state { color: var(--text-gray); padding: 2.5rem 0; text-align: center; letter-spacing: 1px; }
.wiki-error a { color: var(--primary); }
.wiki-error-hint { font-size: 0.82rem; opacity: 0.7; margin-top: 0.6rem; }
.wiki-retry {
    font-family: 'Consolas', 'Courier New', monospace;
    font-size: 0.9rem;
    letter-spacing: 1px;
    color: #0a0a0a;
    background: var(--primary);
    border: 1px solid var(--primary);
    border-radius: 6px;
    padding: 0.4rem 1.4rem;
    margin-top: 0.4rem;
    cursor: pointer;
    transition: box-shadow 0.2s ease, transform 0.1s ease;
}
.wiki-retry:hover { box-shadow: 0 0 14px rgba(0, 255, 65, 0.45); }
.wiki-retry:active { transform: translateY(1px); }

/* 文章标题区 */
.wiki-art-head h1 { color: var(--text-light); font-size: 1.7rem; line-height: 1.25; margin-bottom: 0.2rem; }
.wiki-art-head .art-title-en { color: var(--text-gray); font-size: 0.9rem; letter-spacing: 1px; }
.wiki-art-meta {
    display: flex; flex-wrap: wrap; align-items: center; gap: 0.7rem;
    margin: 0.9rem 0 1.4rem;
    padding-bottom: 1.2rem;
    border-bottom: 1px solid var(--divider);
}
.reader-badge {
    font-size: 0.72rem; letter-spacing: 1px; padding: 0.16rem 0.6rem; border-radius: 4px;
    border: 1px solid rgba(0, 255, 65, 0.3); color: var(--primary); background: rgba(0, 255, 65, 0.06);
}
.reader-badge-draft { color: #ffcf4d; border-color: rgba(255, 207, 77, 0.4); background: rgba(255, 207, 77, 0.08); }
.reader-scripts { display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem; font-size: 0.8rem; }
.reader-scripts-label { color: var(--text-gray); letter-spacing: 1px; }
.reader-script {
    font-family: 'Consolas', 'Courier New', monospace; font-size: 0.76rem; color: var(--primary);
    text-decoration: none; padding: 0.1rem 0.5rem; border: 1px solid rgba(0, 255, 65, 0.25);
    border-radius: 4px; background: rgba(0, 255, 65, 0.04); transition: background 0.2s ease, box-shadow 0.2s ease;
}
.reader-script::before { content: '↓ '; opacity: 0.7; }
.reader-script:hover { background: rgba(0, 255, 65, 0.12); box-shadow: 0 0 8px rgba(0, 255, 65, 0.25); }

/* 本页目录（折叠） */
.wiki-toc { margin: 0 0 1.6rem; border: 1px solid var(--divider); border-radius: 8px; background: rgba(0, 255, 65, 0.02); }
.wiki-toc > summary {
    cursor: pointer; padding: 0.6rem 1rem; color: var(--primary); font-size: 0.82rem;
    letter-spacing: 2px; text-transform: uppercase; list-style: none;
}
.wiki-toc > summary::-webkit-details-marker { display: none; }
.wiki-toc > summary::before { content: '▸ '; }
.wiki-toc[open] > summary::before { content: '▾ '; }
.wiki-toc ul { list-style: none; margin: 0; padding: 0.2rem 0.6rem 0.8rem; }
.wiki-toc li { margin: 0; }
.wiki-toc a {
    display: block; color: var(--text-gray); text-decoration: none; font-size: 0.84rem;
    line-height: 1.5; padding: 0.22rem 0.5rem; border-radius: 4px; cursor: pointer;
}
.wiki-toc a:hover { color: var(--text-light); background: rgba(0, 255, 65, 0.06); }
.wiki-toc .toc-l3 { padding-left: 1.2rem; font-size: 0.8rem; opacity: 0.85; }

/* ---------------- 欢迎页 ---------------- */
.wiki-welcome-title { color: var(--text-light); font-size: 1.6rem; margin-bottom: 0.5rem; }
.wiki-welcome-sub { color: var(--text-gray); font-size: 0.95rem; line-height: 1.7; margin-bottom: 1.6rem; }
.kb-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.2rem; }
/* 首页知识库入口的「进入知识库」按钮区 */
.kb-entry-actions { margin-top: 1.8rem; display: flex; justify-content: center; }
.kb-card {
    position: relative; display: flex; flex-direction: column; background: var(--card-bg);
    border: 1px solid rgba(0, 200, 255, 0.1); border-radius: 12px; padding: 1.3rem 1.4rem;
    overflow: hidden; text-decoration: none; color: inherit; cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}
.kb-card::before {
    content: ''; position: absolute; top: 0; left: 0; width: 3px; height: 100%;
    background: var(--primary); opacity: 0.5; transition: opacity 0.3s ease, width 0.3s ease, box-shadow 0.3s ease;
}
.kb-card:hover { transform: translateY(-4px); box-shadow: 0 12px 28px rgba(0, 255, 100, 0.16); border-color: rgba(0, 255, 65, 0.35); }
.kb-card:hover::before { opacity: 1; width: 5px; box-shadow: 0 0 14px rgba(0, 255, 65, 0.6); }
.kb-card-top { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; margin-bottom: 0.5rem; }
.kb-card-order { font-family: 'Consolas', 'Courier New', monospace; font-size: 1.4rem; font-weight: 700; color: rgba(0, 255, 65, 0.18); line-height: 1; }
.kb-status { flex-shrink: 0; font-size: 0.68rem; letter-spacing: 1px; padding: 0.14rem 0.55rem; border-radius: 4px; border: 1px solid rgba(0, 255, 65, 0.3); color: var(--primary); background: rgba(0, 255, 65, 0.06); }
.kb-status.kb-status-draft { color: #ffcf4d; border-color: rgba(255, 207, 77, 0.4); background: rgba(255, 207, 77, 0.08); }
.kb-card-title { color: var(--primary); font-size: 1.18rem; font-weight: 700; margin-bottom: 0.15rem; }
.kb-card-title-en { color: var(--text-gray); font-size: 0.8rem; letter-spacing: 1px; margin-bottom: 0.7rem; }
.kb-desc { color: var(--text-gray); font-size: 0.88rem; line-height: 1.65; margin-bottom: 0.9rem; }
.kb-topics { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-bottom: 1rem; }
.kb-topic { font-size: 0.72rem; color: var(--primary); background: rgba(0, 255, 65, 0.06); border: 1px solid rgba(0, 255, 65, 0.22); padding: 0.16rem 0.55rem; border-radius: 4px; }
.kb-card-cta { margin-top: auto; color: var(--primary); font-weight: 600; font-size: 0.9rem; letter-spacing: 1px; }
.kb-card-cta::after { content: ' →'; transition: margin-left 0.25s ease; }
.kb-card:hover .kb-card-cta::after { margin-left: 4px; }

/* ============ 正文 Markdown 排版（沿用） ============ */
.reader-content { color: var(--text-light); font-size: 1rem; line-height: 1.85; }
.reader-content > *:first-child { margin-top: 0; }
.reader-content h1, .reader-content h2, .reader-content h3,
.reader-content h4, .reader-content h5, .reader-content h6 { color: var(--text-light); line-height: 1.35; scroll-margin-top: 16px; }
.reader-content h2 { font-size: 1.45rem; margin: 2.2rem 0 1rem; padding-bottom: 0.5rem; border-bottom: 1px solid var(--divider); }
.reader-content h2::before { content: '// '; color: var(--primary); font-weight: 800; text-shadow: 0 0 6px rgba(0, 255, 65, 0.5); }
.reader-content h3 { font-size: 1.18rem; margin: 1.7rem 0 0.8rem; color: var(--primary); }
.reader-content h4 { font-size: 1.02rem; margin: 1.3rem 0 0.6rem; color: var(--text-light); }
.reader-content p { margin: 0.85rem 0; }
.reader-content a { color: var(--primary); text-decoration: none; border-bottom: 1px solid rgba(0, 255, 65, 0.35); }
.reader-content a:hover { background: rgba(0, 255, 65, 0.08); }
.reader-content strong { color: #fff; font-weight: 700; }
.reader-content em { color: var(--text-light); }
.reader-content ul, .reader-content ol { margin: 0.85rem 0; padding-left: 1.6rem; }
.reader-content li { margin: 0.35rem 0; }
.reader-content li::marker { color: var(--primary); }
.reader-content blockquote { margin: 1.1rem 0; padding: 0.7rem 1.1rem; border-left: 3px solid var(--primary); background: rgba(0, 255, 65, 0.04); color: var(--text-gray); border-radius: 0 6px 6px 0; }
.reader-content blockquote p { margin: 0.35rem 0; }
.reader-content blockquote strong { color: var(--primary); }
.reader-content hr { border: none; border-top: 1px dashed var(--divider); margin: 1.8rem 0; }
.reader-content table { width: 100%; border-collapse: collapse; margin: 1.2rem 0; font-size: 0.9rem; display: block; overflow-x: auto; }
.reader-content th, .reader-content td { border: 1px solid rgba(0, 255, 65, 0.15); padding: 0.55rem 0.8rem; text-align: left; vertical-align: top; }
.reader-content thead th { background: rgba(0, 255, 65, 0.08); color: var(--primary); font-weight: 600; white-space: nowrap; }
.reader-content tbody tr:nth-child(even) { background: rgba(255, 255, 255, 0.02); }
.reader-content tbody tr:hover { background: rgba(0, 255, 65, 0.05); }
.reader-content pre { background: #0d0d0d; border: 1px solid var(--divider); border-left: 3px solid var(--primary); border-radius: 8px; padding: 1rem 1.2rem; overflow-x: auto; margin: 1.1rem 0; }
.reader-content pre code { font-family: 'Consolas', 'Courier New', monospace; font-size: 0.84rem; line-height: 1.6; color: #d6ffe0; background: none; padding: 0; white-space: pre; }
.reader-content :not(pre) > code { font-family: 'Consolas', 'Courier New', monospace; font-size: 0.88em; color: var(--primary); background: rgba(0, 255, 65, 0.08); border: 1px solid rgba(0, 255, 65, 0.18); border-radius: 4px; padding: 0.08rem 0.35rem; }
.math-err { color: #ff6b6b !important; border-color: rgba(255, 107, 107, 0.3) !important; }
.reader-content img { display: block; max-width: 100%; height: auto; margin: 1.3rem auto; border: 1px solid var(--divider); border-radius: 8px; background: #fff; }
.reader-content .katex-display { overflow-x: auto; overflow-y: hidden; padding: 0.4rem 0; margin: 1.1rem 0; }
.reader-content .katex { color: var(--text-light); font-size: 1.04em; }

/* ============ 响应式 ============ */
@media (max-width: 900px) {
    .wiki { display: block; }
    .wiki-sidebar {
        position: static;
        max-height: none;
        border-right: none;
        border-bottom: 1px solid var(--divider);
        border-radius: 12px 12px 0 0;
    }
    .wiki-nav { max-height: 40vh; }
    .wiki-main { padding: 1.2rem 1.1rem 1.8rem; }
    .wiki-breadcrumb { margin: -1.2rem -1.1rem 1.1rem; padding: 0.6rem 1.1rem; }
    .kb-grid { grid-template-columns: 1fr; }
    .wiki-art-head h1 { font-size: 1.4rem; }
}