/* ============================================================
   zeemablog 产品使用文档样式（v1.10.0）
   九套主题共用同一套文档页结构，配色/圆角全部走主题令牌：
     --zb-*（default/aurora/aurum/skyline/verdant/mono/codex）
     --nx-*（nexus）  --fs-*（lark）
   结构: 0 令牌 1 文档页头 2 双栏骨架 3 侧栏目录 4 正文排版
         5 上一篇/下一篇 6 文档中心 7 产品详情页文档入口 8 响应式
   交互契约(main.js): .zb-reveal(.in) / img.zb-img-err / #zbBacktop
   ============================================================ */

/* ---------- 0 令牌（逐层回退，任何主题缺失都能取到默认值） ---------- */
html {
    --d-primary: var(--zb-primary, var(--nx-primary, var(--fs-blue, #4f6ef7)));
    --d-primary-2: var(--zb-accent, var(--nx-primary-2, var(--fs-blue-light, #8b5cf6)));
    --d-primary-soft: var(--fs-blue-soft, rgba(79, 110, 247, .08));
    --d-ink: var(--zb-ink, var(--nx-ink, var(--fs-text, #0f172a)));
    --d-ink-2: var(--zb-ink-2, var(--nx-ink-2, var(--fs-text2, #334155)));
    --d-muted: var(--zb-muted, var(--nx-ink-3, var(--fs-text3, #64748b)));
    --d-line: var(--zb-line, var(--zb-border, var(--nx-line, var(--fs-border, #e2e8f0))));
    --d-card: var(--zb-card, var(--zb-surface, var(--nx-card, var(--fs-bg, #ffffff))));
    --d-soft: var(--zb-bg, var(--nx-bg, var(--fs-bg-soft, #f6f8fc)));
    --d-radius: var(--zb-radius, var(--nx-radius, var(--fs-radius, 14px)));
    --d-shadow: var(--zb-shadow, var(--nx-shadow-sm, 0 1px 2px rgba(15, 23, 42, .04), 0 12px 32px rgba(15, 23, 42, .06)));
    --d-font: "PingFang SC", "Microsoft YaHei", -apple-system, "Segoe UI", sans-serif;
    --d-mono: "JetBrains Mono", Menlo, Consolas, "Courier New", monospace;
}

/* ---------- 1 文档页头 ---------- */
.zb-doc-hero {
    background: var(--d-soft);
    border-bottom: 1px solid var(--d-line);
    padding: 34px 0 30px;
}
.zb-doc-wrap {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}
.zb-doc-crumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--d-muted);
    margin-bottom: 18px;
}
.zb-doc-crumb a { color: var(--d-muted); }
.zb-doc-crumb a:hover { color: var(--d-primary); }
.zb-doc-crumb em { font-style: normal; color: var(--d-ink-2); }
.zb-doc-hero-main {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 24px;
}
.zb-doc-kicker {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 12.5px;
    font-weight: 700;
    letter-spacing: .04em;
    color: var(--d-primary);
    background: var(--d-primary-soft);
    border-radius: 999px;
    padding: 5px 14px;
    margin-bottom: 14px;
}
.zb-doc-hero h1 {
    font-size: 30px;
    line-height: 1.35;
    font-weight: 800;
    color: var(--d-ink);
    margin: 0 0 12px;
}
.zb-doc-lede {
    font-size: 14.5px;
    line-height: 1.75;
    color: var(--d-muted);
    max-width: 720px;
    margin: 0 0 16px;
}
.zb-doc-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
    font-size: 13px;
    color: var(--d-muted);
}
.zb-doc-meta span { display: inline-flex; align-items: center; gap: 6px; }
.zb-doc-meta i { color: var(--d-primary); }
.zb-doc-back {
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13.5px;
    font-weight: 600;
    color: var(--d-ink-2);
    border: 1px solid var(--d-line);
    background: var(--d-card);
    border-radius: 999px;
    padding: 9px 18px;
    transition: color .2s, border-color .2s, transform .2s;
}
.zb-doc-back:hover { color: var(--d-primary); border-color: var(--d-primary); transform: translateY(-1px); }

/* ---------- 2 双栏骨架 ---------- */
.zb-doc-body { padding: 34px 0 60px; }
.zb-doc-grid {
    display: grid;
    grid-template-columns: 268px minmax(0, 1fr);
    gap: 28px;
    align-items: start;
}

/* ---------- 3 侧栏目录 ---------- */
.zb-doc-side { position: sticky; top: 92px; display: grid; gap: 16px; }
.zb-doc-side-card {
    background: var(--d-card);
    border: 1px solid var(--d-line);
    border-radius: var(--d-radius);
    padding: 18px;
}
.zb-doc-side-card h4 {
    font-size: 14px;
    font-weight: 700;
    color: var(--d-ink);
    margin: 0 0 14px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.zb-doc-side-card h4 i { color: var(--d-primary); }
.zb-doc-nav { display: grid; gap: 4px; }
.zb-doc-nav-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 9px 12px;
    border-radius: 10px;
    font-size: 13.5px;
    line-height: 1.55;
    color: var(--d-ink-2);
    transition: background .2s, color .2s;
}
.zb-doc-nav-item .no {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    border-radius: 6px;
    background: var(--d-soft);
    color: var(--d-muted);
    font-size: 11.5px;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-top: 1px;
}
.zb-doc-nav-item:hover { background: var(--d-soft); color: var(--d-primary); }
.zb-doc-nav-item.on {
    background: var(--d-primary-soft);
    color: var(--d-primary);
    font-weight: 700;
}
.zb-doc-nav-item.on .no { background: var(--d-primary); color: #fff; }
.zb-doc-nav-all {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px dashed var(--d-line);
    font-size: 13px;
    font-weight: 600;
    color: var(--d-primary);
}
.zb-doc-side-card--cta { background: linear-gradient(150deg, var(--d-primary), var(--d-primary-2)); border: 0; }
.zb-doc-side-card--cta h4, .zb-doc-side-card--cta p { color: #fff; }
.zb-doc-side-card--cta h4 i { color: rgba(255, 255, 255, .85); }
.zb-doc-side-card--cta p { font-size: 13px; line-height: 1.7; margin: 0 0 14px; opacity: .92; }
.zb-doc-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: #fff;
    color: var(--d-primary);
    font-size: 13.5px;
    font-weight: 700;
    border-radius: 999px;
    padding: 9px 18px;
}
.zb-doc-btn:hover { opacity: .9; }

/* ---------- 4 正文排版 ---------- */
.zb-doc-main {
    background: var(--d-card);
    border: 1px solid var(--d-line);
    border-radius: var(--d-radius);
    padding: 34px 38px 30px;
    min-width: 0;
}
.zb-doc-content {
    font-family: var(--d-font);
    font-size: 15px;
    line-height: 1.9;
    color: var(--d-ink-2);
    word-break: break-word;
}
.zb-doc-content > *:first-child { margin-top: 0; }
.zb-doc-content h2 {
    font-size: 21px;
    font-weight: 800;
    color: var(--d-ink);
    line-height: 1.5;
    margin: 34px 0 14px;
    padding-left: 13px;
    border-left: 4px solid var(--d-primary);
}
.zb-doc-content h3 {
    font-size: 17px;
    font-weight: 700;
    color: var(--d-ink);
    margin: 26px 0 10px;
}
.zb-doc-content h4 { font-size: 15.5px; font-weight: 700; color: var(--d-ink); margin: 20px 0 8px; }
.zb-doc-content p { margin: 0 0 14px; }
.zb-doc-content a { color: var(--d-primary); border-bottom: 1px solid var(--d-primary-soft); }
.zb-doc-content a:hover { border-bottom-color: var(--d-primary); }
.zb-doc-content strong { color: var(--d-ink); font-weight: 700; }
.zb-doc-content ul, .zb-doc-content ol { margin: 0 0 16px; padding-left: 22px; }
.zb-doc-content li { margin-bottom: 7px; }
.zb-doc-content img {
    max-width: 100%;
    height: auto;
    display: block;
    border-radius: 10px;
    border: 1px solid var(--d-line);
    margin: 18px 0;
}
.zb-doc-content blockquote {
    margin: 18px 0;
    padding: 12px 18px;
    border-left: 4px solid var(--d-primary);
    background: var(--d-soft);
    border-radius: 0 10px 10px 0;
    color: var(--d-ink-2);
}
.zb-doc-content code {
    font-family: var(--d-mono);
    font-size: 13px;
    background: var(--d-soft);
    border: 1px solid var(--d-line);
    border-radius: 5px;
    padding: 1.5px 6px;
    color: var(--d-primary);
}
.zb-doc-content pre {
    background: #0f172a;
    color: #e2e8f0;
    border-radius: 12px;
    padding: 16px 18px;
    overflow-x: auto;
    margin: 18px 0;
    line-height: 1.7;
}
.zb-doc-content pre code { background: none; border: 0; color: inherit; padding: 0; font-size: 13px; }
.zb-doc-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 18px 0;
    font-size: 13.5px;
    display: block;
    overflow-x: auto;
}
.zb-doc-content th, .zb-doc-content td {
    border: 1px solid var(--d-line);
    padding: 9px 13px;
    text-align: left;
}
.zb-doc-content th { background: var(--d-soft); color: var(--d-ink); font-weight: 700; }
.zb-doc-content hr { border: 0; border-top: 1px solid var(--d-line); margin: 30px 0; }

/* ---------- 5 上一篇 / 下一篇 ---------- */
.zb-doc-pager {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
    margin-top: 34px;
    padding-top: 22px;
    border-top: 1px solid var(--d-line);
}
.zb-doc-pager-item {
    display: grid;
    gap: 5px;
    padding: 13px 16px;
    border: 1px solid var(--d-line);
    border-radius: 12px;
    transition: border-color .2s, background .2s, transform .2s;
}
.zb-doc-pager-item.next { text-align: right; }
.zb-doc-pager-item em { font-style: normal; font-size: 12px; color: var(--d-muted); }
.zb-doc-pager-item b { font-size: 13.5px; color: var(--d-ink); font-weight: 600; line-height: 1.5; }
.zb-doc-pager-item:hover { border-color: var(--d-primary); background: var(--d-primary-soft); transform: translateY(-1px); }
.zb-doc-pager-item.empty { opacity: .6; }
.zb-doc-pager-item.empty:hover { border-color: var(--d-line); background: none; transform: none; }

/* ---------- 6 文档中心 ---------- */
.zb-doc-hub-hero {
    background: var(--d-soft);
    border-bottom: 1px solid var(--d-line);
    padding: 36px 0 32px;
}
.zb-doc-hub-inner { display: flex; align-items: center; gap: 26px; }
.zb-doc-hub-figure {
    width: 168px;
    height: 118px;
    flex-shrink: 0;
    border-radius: 14px;
    overflow: hidden;
    border: 1px solid var(--d-line);
    background: var(--d-card);
}
.zb-doc-hub-figure img { width: 100%; height: 100%; object-fit: cover; display: block; }
.zb-doc-hub-copy h1 { font-size: 26px; font-weight: 800; color: var(--d-ink); margin: 0 0 10px; line-height: 1.4; }
.zb-doc-hub-copy p { font-size: 14px; line-height: 1.75; color: var(--d-muted); margin: 0 0 14px; max-width: 660px; }
.zb-doc-hub-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.zb-doc-chip {
    font-size: 12.5px;
    color: var(--d-primary);
    background: var(--d-card);
    border: 1px solid var(--d-line);
    border-radius: 999px;
    padding: 4px 12px;
}
.zb-doc-sec-head { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; margin-bottom: 18px; }
.zb-doc-sec-head h2 { font-size: 19px; font-weight: 800; color: var(--d-ink); margin: 0; }
.zb-doc-sec-head span { font-size: 13px; color: var(--d-muted); }
.zb-doc-hub-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
}
.zb-doc-card {
    display: grid;
    gap: 10px;
    background: var(--d-card);
    border: 1px solid var(--d-line);
    border-radius: var(--d-radius);
    padding: 20px 22px;
    transition: transform .2s, border-color .2s, box-shadow .2s;
}
.zb-doc-card:hover { transform: translateY(-3px); border-color: var(--d-primary); box-shadow: var(--d-shadow); }
.zb-doc-card .hd { display: flex; align-items: center; gap: 12px; }
.zb-doc-card .no {
    flex-shrink: 0;
    width: 30px;
    height: 30px;
    border-radius: 9px;
    background: var(--d-primary-soft);
    color: var(--d-primary);
    font-size: 13px;
    font-weight: 800;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}
.zb-doc-card b { font-size: 16px; font-weight: 700; color: var(--d-ink); line-height: 1.5; }
.zb-doc-card em {
    font-style: normal;
    font-size: 13px;
    line-height: 1.7;
    color: var(--d-muted);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.zb-doc-card .ft { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; font-size: 12.5px; color: var(--d-muted); }
.zb-doc-card .ft .ver { color: var(--d-primary); font-weight: 600; }
.zb-doc-card .go { font-size: 13px; font-weight: 700; color: var(--d-primary); display: inline-flex; align-items: center; gap: 7px; }
.zb-doc-empty {
    background: var(--d-card);
    border: 1px dashed var(--d-line);
    border-radius: var(--d-radius);
    padding: 46px 24px;
    text-align: center;
    color: var(--d-muted);
    font-size: 14px;
}

/* ---------- 7 产品详情页「使用文档」入口 ---------- */
.zb-doc-entry-tip { font-size: 13.5px; color: var(--d-muted); margin: 0 0 16px; }
.zb-doc-entry-list { display: grid; gap: 10px; }
.zb-doc-entry-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 13px 16px;
    border: 1px solid var(--d-line);
    border-radius: 12px;
    background: var(--d-card);
    transition: border-color .2s, background .2s, transform .2s;
}
.zb-doc-entry-item:hover { border-color: var(--d-primary); background: var(--d-primary-soft); transform: translateX(2px); }
.zb-doc-entry-item .no {
    flex-shrink: 0;
    width: 26px;
    height: 26px;
    border-radius: 8px;
    background: var(--d-primary-soft);
    color: var(--d-primary);
    font-size: 12px;
    font-weight: 800;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}
.zb-doc-entry-item .tx { flex: 1; min-width: 0; display: grid; gap: 4px; }
.zb-doc-entry-item .tx b { font-size: 14.5px; font-weight: 700; color: var(--d-ink); }
.zb-doc-entry-item .tx em {
    font-style: normal;
    font-size: 12.5px;
    color: var(--d-muted);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.zb-doc-entry-item .mt {
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-size: 12.5px;
    color: var(--d-muted);
}
.zb-doc-entry-item .mt .ver { color: var(--d-primary); font-weight: 600; }
.zb-doc-entry-more {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 14px;
    font-size: 13.5px;
    font-weight: 700;
    color: var(--d-primary);
}
/* 翎蓝 Lark 详情页入口块（fs 语言环境下的补充） */
.fs-doc-entry { display: grid; gap: 12px; }
.fs-doc-entry .fs-doc-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 18px;
    background: var(--fs-bg, #fff);
    border: 1px solid var(--fs-border-light, #e8eaed);
    border-radius: 10px;
    transition: border-color .2s, box-shadow .2s;
}
.fs-doc-entry .fs-doc-item:hover { border-color: var(--fs-blue, #3370ff); box-shadow: 0 6px 18px rgba(51, 112, 255, .1); }

/* ---------- 8 响应式 ---------- */
@media (max-width: 960px) {
    .zb-doc-grid { grid-template-columns: minmax(0, 1fr); }
    .zb-doc-side { position: static; order: 2; }
    .zb-doc-hub-grid { grid-template-columns: minmax(0, 1fr); }
    .zb-doc-hub-inner { flex-direction: column; align-items: flex-start; }
    .zb-doc-hub-figure { width: 100%; height: 150px; }
    .zb-doc-main { padding: 26px 20px 24px; }
}
@media (max-width: 640px) {
    .zb-doc-hero { padding: 24px 0 22px; }
    .zb-doc-hero h1 { font-size: 23px; }
    .zb-doc-hero-main { flex-direction: column; align-items: flex-start; }
    .zb-doc-meta { gap: 12px; }
    .zb-doc-pager { grid-template-columns: minmax(0, 1fr); }
    .zb-doc-pager-item.next { text-align: left; }
    .zb-doc-entry-item { flex-wrap: wrap; }
    .zb-doc-entry-item .mt { width: 100%; }
}