:root{
  --purple:#673de6; --purple-d:#5027c9; --ink:#1a1a2e; --muted:#5b5b73;
  --bg:#f6f5fb; --card:#ffffff; --line:#e6e3f3; --accent:#fff4e6;
}
*{box-sizing:border-box}
html{overflow-x:hidden;max-width:100%}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  color:var(--ink);background:var(--bg);line-height:1.65;overflow-x:hidden;max-width:100%;width:100%}
a{color:var(--purple-d);text-decoration:none}
a:hover{text-decoration:underline}
.skip{position:absolute;left:-999px;top:0;background:var(--purple);color:#fff;padding:10px 16px;border-radius:0 0 8px 0;z-index:100}
.skip:focus{left:0}
header.top{background:linear-gradient(135deg,var(--purple),#8e5bff);color:#fff;padding:14px 22px;display:flex;gap:18px;flex-wrap:wrap;align-items:center}
header.top a{color:#fff;font-weight:600}
.breadcrumb{padding:14px 22px 0;font-size:13px;color:var(--muted)}
.breadcrumb a{color:var(--purple-d)}
main{max-width:1380px;margin:0 auto;padding:14px 22px 70px;width:100%;min-width:0;overflow-wrap:anywhere;word-wrap:break-word}
h1{font-size:24px;margin:8px 0 14px;overflow-wrap:anywhere;word-break:break-word}
.article-body{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px 22px;max-width:100%;min-width:0;overflow-wrap:anywhere;word-wrap:break-word}
.article-body h2,.article-body h3{color:var(--purple-d);margin:20px 0 8px;overflow-wrap:anywhere;word-break:break-word}
.article-body p{margin:10px 0}
.article-body ol,.article-body ul{margin:10px 0;padding-left:24px}
.article-body li{margin:5px 0}
.article-body pre{background:#1e1b33;color:#e8e6ff;padding:12px 14px;border-radius:8px;overflow:auto;font-size:13px;max-width:100%}
.article-body code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;overflow-wrap:anywhere;word-break:break-word}
.article-body table{display:block;max-width:100%;overflow-x:auto}
.article-body .note{border-left:4px solid var(--purple);background:var(--accent);padding:8px 12px;border-radius:6px;margin:10px 0}
.art-img{margin:16px 0;text-align:center}
.art-img img{max-width:100%;height:auto;border:1px solid var(--line);border-radius:10px;cursor:zoom-in;transition:filter .15s,border-color .15s}
.art-img a.img-zoom:hover img{filter:brightness(.96);border-color:var(--accent)}
.art-img figcaption{font-size:12px;color:var(--muted);margin-top:6px}
.gallery{display:flex;flex-wrap:wrap;gap:12px;margin:16px 0}
.gallery figure{margin:0;max-width:280px}
.gallery img{max-width:100%;border:1px solid var(--line);border-radius:10px}
.src{margin-top:16px;font-size:13px}
/* index */
.searchbar{position:sticky;top:0;z-index:20;background:#fff;border-bottom:1px solid var(--line);padding:16px 24px;display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.searchbar input{flex:1;min-width:240px;padding:12px 14px;border:1px solid var(--line);border-radius:12px;font-size:15px}
.searchbar input:focus{outline:3px solid #c9b8ff;border-color:var(--purple)}
/* 仅当顶部广告条注入后(has-ad)，才把侧栏/搜索框下移到广告条之下 */
body.has-ad .searchbar{top:36px}
body.has-ad .sidebar{top:36px;height:calc(100vh - 36px)}
.cat-list{max-width:1380px;margin:0 auto;padding:18px 28px 60px}
.cat-block{margin:0 0 34px}
.cat-block:first-of-type{margin-top:6px}
.cat-block h2{font-size:20px;margin:0 0 6px;display:flex;align-items:center;gap:10px;flex-wrap:wrap;border-left:4px solid var(--purple-d);padding-left:12px}
.cat-block .c{font-size:12px;color:var(--purple-d);background:#efeaff;border-radius:20px;padding:2px 10px;font-weight:600;white-space:nowrap}
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
.chip{display:inline-flex;align-items:center;max-width:100%;padding:8px 14px;border:1px solid var(--line);border-radius:22px;background:var(--card);font-size:14px;line-height:1.35;color:var(--purple-d);text-decoration:none;transition:background .12s,border-color .12s,transform .08s}
.chip:hover{background:#f3f0ff;border-color:var(--purple-d);transform:translateY(-1px)}
.chip .pend{font-size:11px;color:#b06b00;background:#fff4e6;border-radius:6px;padding:1px 6px;margin-left:6px}
.status{padding:10px 24px;font-size:13px;color:var(--muted)}
[hidden]{display:none !important}
@media (max-width:820px){.cat-list{padding:16px}.chips{gap:8px}.chip{font-size:13.5px;padding:7px 12px}}
/* 文档站布局：左侧分类树 + 右侧内容 */
.layout{display:flex;align-items:flex-start;min-height:100vh;width:100%;max-width:100%;min-width:0}
.sidebar{position:sticky;top:0;align-self:flex-start;width:280px;flex:0 0 280px;height:100vh;overflow-y:auto;background:var(--card);border-right:1px solid var(--line);padding:18px 14px}
.sidebar .sb-home{display:block;font-weight:500;color:var(--purple-d);text-decoration:none;padding:6px 8px 12px;font-size:15px}
.sidebar details.sb-cat>summary{font-weight:500;cursor:pointer;padding:7px 6px;color:var(--purple-d);list-style:none}
.sidebar details.sb-cat>summary::-webkit-details-marker{display:none}
.sidebar details.sb-cat>summary::before{content:"\25B8";display:inline-block;margin-right:6px;transition:transform .15s;color:var(--muted);font-size:11px}
.sidebar details.sb-cat[open]>summary::before{transform:rotate(90deg)}
.sidebar details.sb-cat>summary .cnt{font-size:11px;color:var(--muted);margin-left:6px;font-weight:400}
.sidebar details.sb-sub{margin:2px 0 2px 10px}
.sidebar details.sb-sub>summary{font-size:13.5px;cursor:pointer;padding:5px 6px;color:var(--muted);list-style:none}
.sidebar details.sb-sub>summary::-webkit-details-marker{display:none}
.sidebar details.sb-sub>summary::before{content:"\25B8";display:inline-block;margin-right:5px;transition:transform .15s;color:var(--muted);font-size:10px}
.sidebar details.sb-sub[open]>summary::before{transform:rotate(90deg)}
.sidebar a.sb-art{display:block;padding:5px 8px 5px 18px;font-size:13.5px;color:var(--purple-d);text-decoration:none;border-radius:6px;line-height:1.4}
.sidebar a.sb-art:hover{background:#f3f0ff}
.sidebar a.sb-art.active{background:#efeaff;font-weight:500;color:var(--purple-d)}
.sidebar a.sb-art.pend{color:var(--muted)}
.content{flex:1;min-width:0;max-width:100%;overflow-x:hidden}
/* 侧边栏分类名链接 + 当前分类高亮 */
.sidebar a.sb-cat-link{color:inherit;text-decoration:none}
.sidebar details.sb-cat.active>summary{color:var(--purple);font-weight:600}
.sidebar details.sb-cat.active>summary .cnt{color:var(--purple)}
/* 首页分类标题入口 */
.cat-link{color:inherit;text-decoration:none}
.cat-link:hover{text-decoration:underline}
/* 分类独立页 */
.cat-intro{color:var(--muted);max-width:720px;margin:4px 0 18px}
.cat-detail{margin-top:6px}
.cat-sub{margin:22px 0}
.cat-sub h2{font-size:18px;border-left:4px solid var(--purple-d);padding-left:12px;margin:0 0 12px;color:var(--purple-d)}
.cat-art-list{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:10px}
.cat-art{display:block;padding:12px 14px;border:1px solid var(--line);border-radius:10px;background:var(--card);color:var(--purple-d);text-decoration:none;font-size:14px;line-height:1.4;transition:background .12s,border-color .12s,transform .08s}
.cat-art:hover{background:#f3f0ff;border-color:var(--purple-d);transform:translateY(-1px)}
.cat-art.pend{color:var(--muted)}
@media (max-width:820px){.cat-art-list{grid-template-columns:1fr}}
.top-ad{position:sticky;top:0;z-index:50;box-sizing:border-box;width:100%;max-width:100%;min-height:36px;height:auto;display:flex;align-items:center;justify-content:center;gap:8px 10px;flex-wrap:nowrap;background:linear-gradient(135deg,#6a2cff,#00b0ff);color:#fff;padding:6px 12px;font-size:13px;overflow:hidden}
.top-ad > span{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1 1 auto}
.top-ad a.ad-cta{display:inline-flex;align-items:center;gap:5px;flex:0 0 auto;background:#fff;color:#6a2cff;font-weight:700;text-decoration:none;border-radius:20px;padding:4px 12px;white-space:nowrap}
.top-ad a.ad-cta:hover{text-decoration:none;opacity:.92}
.bottom-ad{position:fixed;left:0;right:0;bottom:0;z-index:55;display:flex;align-items:center;justify-content:center;gap:12px;flex-wrap:wrap;background:linear-gradient(135deg,#5027c9,#6a2cff);color:#fff;padding:10px 16px;font-size:14px;transform:translateY(110%);transition:transform .25s ease;box-shadow:0 -4px 20px rgba(80,39,201,.25);max-width:100%;box-sizing:border-box}
.bottom-ad.is-visible{transform:translateY(0)}
.bottom-ad a.ad-cta{display:inline-flex;background:#fff;color:#5027c9;font-weight:700;text-decoration:none;border-radius:20px;padding:6px 14px}
.bottom-ad a.ad-cta:hover{text-decoration:none;opacity:.92}
body.has-bottom-ad{padding-bottom:64px}
.sb-promo-box{margin:4px 0 14px;padding:12px;border-radius:12px;background:linear-gradient(145deg,#efeaff,#e8f7ff);border:1px solid #d9cffc;max-width:100%;box-sizing:border-box}
.sb-promo-title{margin:0 0 4px;font-weight:700;font-size:15px;color:var(--purple-d)}
.sb-promo-text{margin:0 0 10px;font-size:12.5px;color:var(--muted);line-height:1.4}
.sb-promo-box a.ad-cta{display:inline-flex;background:var(--purple);color:#fff;font-weight:700;text-decoration:none;border-radius:18px;padding:7px 12px;font-size:13px}
.sb-promo-box a.ad-cta:hover{text-decoration:none;background:var(--purple-d)}
.sb-promo-more{display:block;margin-top:8px;font-size:12px;color:var(--purple-d)}
.art-promo{margin:18px 0;padding:14px 16px;border-radius:12px;background:linear-gradient(135deg,#f3f0ff,#eef9ff);border:1px solid #d9cffc;max-width:100%;min-width:0;box-sizing:border-box;overflow-wrap:anywhere}
.art-promo-mid{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:14.5px}
.art-promo-mid a.ad-cta{background:var(--purple);color:#fff;font-weight:700;text-decoration:none;border-radius:18px;padding:6px 12px;font-size:13px;white-space:nowrap}
.art-promo-mid a.ad-cta:hover{text-decoration:none;background:var(--purple-d)}
.art-promo-h{margin:0 0 6px;font-size:17px;font-weight:700;color:var(--purple-d)}
.art-promo-end p{margin:0 0 10px}
.art-promo-actions{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.art-promo-end a.ad-cta{display:inline-flex;background:var(--purple);color:#fff;font-weight:700;text-decoration:none;border-radius:20px;padding:10px 16px}
.art-promo-end a.ad-cta:hover{text-decoration:none;background:var(--purple-d)}
.art-promo-sec{font-size:14px;color:var(--purple-d)}
.home-promo{margin:8px 0 20px;padding:22px 24px;border-radius:16px;background:linear-gradient(135deg,#673de6,#00b0ff);color:#fff;box-shadow:0 10px 28px rgba(103,61,230,.22)}
.home-promo h2{margin:0 0 8px;font-size:22px;color:#fff}
.home-promo p{margin:0 0 14px;max-width:640px;opacity:.95}
.home-promo-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-bottom:14px}
.home-promo a.ad-cta{display:inline-flex;background:#fff;color:#5027c9;font-weight:700;text-decoration:none;border-radius:22px;padding:10px 18px}
.home-promo a.ad-cta:hover{text-decoration:none;opacity:.92}
.home-promo-sec{color:#fff;font-weight:600;text-decoration:underline}
.home-promo-points{margin:0;padding-left:18px;font-size:14px;opacity:.95}
.home-promo-points li{margin:4px 0}
.promo-page{max-width:820px}
.promo-page .cta-row{display:flex;flex-wrap:wrap;gap:12px;margin:18px 0}
.promo-page a.ad-cta{display:inline-flex;background:var(--purple);color:#fff;font-weight:700;text-decoration:none;border-radius:22px;padding:12px 20px;font-size:16px}
.promo-page a.ad-cta:hover{text-decoration:none;background:var(--purple-d)}
.promo-card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px 18px;margin:14px 0}
.promo-card h2{margin:0 0 8px;font-size:18px;color:var(--purple-d)}
.promo-links{display:flex;flex-wrap:wrap;gap:10px;margin:16px 0}
.promo-links a{display:inline-flex;padding:8px 14px;border-radius:20px;border:1px solid var(--line);background:#fff;color:var(--purple-d);text-decoration:none;font-size:14px}
.promo-links a:hover{background:#f3f0ff;border-color:var(--purple-d)}
.mobile-bar,.nav-toggle-cb,.nav-toggle-btn{display:none}
@media (max-width:860px){
.layout{flex-direction:column;width:100%;max-width:100%}
/* 手机端顶部工具栏：避免 100vw 撑出横向滚动 */
.mobile-bar{display:flex;align-items:center;justify-content:space-between;position:sticky;top:36px;left:0;right:0;width:100%;max-width:100%;box-sizing:border-box;flex-shrink:0;z-index:40;background:#fff;border-bottom:1px solid var(--line);padding:8px 8px 8px 14px}
.mobile-bar .m-back,.mobile-bar .m-title{font-weight:600;color:var(--purple-d);font-size:15px;text-decoration:none;padding-right:8px;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.mobile-bar .m-back:hover{text-decoration:underline}
.nav-toggle-btn{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;padding:0;margin-right:0;flex:0 0 auto;background:transparent;border:1px solid var(--line);border-radius:8px;cursor:pointer}
.nav-toggle-btn .hamburger{display:block;width:24px;height:21px;color:var(--purple-d)}
/* 目录树默认收起，点击汉堡后展开 */
.sidebar{width:100%;max-width:100%;flex:none;height:auto;position:static;border-right:none;border-bottom:1px solid var(--line);display:none;padding-top:10px;box-sizing:border-box}
.nav-toggle-cb:checked ~ .sidebar{display:block}
header.top{display:none}
.searchbar{position:static}
main{padding:12px 14px 80px}
.article-body{padding:14px 14px;border-radius:10px}
h1{font-size:20px}
.top-ad{font-size:12px;padding:6px 10px;gap:6px}
.top-ad > span{font-size:12px}
.home-promo{padding:16px;border-radius:12px}
.home-promo h2{font-size:18px}
.art-promo-mid{font-size:14px}
.bottom-ad{font-size:13px;padding:10px 12px}
}