:root{--paper:#faf9f6;--panel:#f3f1ea;--card:#ffffff;--ink:#1f2328;--muted:#6b6f76;
--line:#e5e1d8;--purple:#7c3aed;--purple-deep:#5b21b6;--purple-soft:#ede9fe;--accent:#ffd400;
--accent-hover:#e6bd00;--radius:10px;--topbar-h:56px}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei","Segoe UI",system-ui,sans-serif;
background:var(--paper);color:var(--ink);line-height:1.75;font-size:16px}
a{color:var(--purple-deep);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;height:auto;border-radius:var(--radius)}
table{width:100%;border-collapse:collapse;margin:1rem 0;font-size:.95rem}
th,td{border:1px solid var(--line);padding:.55rem .8rem;text-align:left;vertical-align:top}
th{background:var(--panel);font-weight:700}
code{background:var(--panel);padding:.1rem .4rem;border-radius:6px;font-size:.9em}
/* ---- 顶栏（固定） ---- */
.topbar{position:fixed;top:0;left:0;right:0;height:var(--topbar-h);z-index:50;
background:var(--card);border-bottom:1px solid var(--line);
display:flex;align-items:center;gap:.75rem;padding:0 1rem}
.menu-toggle{display:none;background:none;border:1px solid var(--line);border-radius:8px;
width:38px;height:38px;cursor:pointer;color:var(--ink);font-size:1.1rem;line-height:1}
.brand{display:flex;align-items:center;gap:.5rem;font-weight:800;font-size:1.1rem;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-width:0}
.brand .dot{width:14px;height:14px;border-radius:50%;background:var(--purple);flex:none}
.topbar-cta{margin-left:auto;flex:none}
/* ---- CTA 固定警示黄 ---- */
.download-btn,.pan-btn{display:inline-flex;align-items:center;gap:.4rem;background:var(--accent);
color:#000;font-weight:800;border-radius:999px;padding:.5rem 1.1rem;font-size:.92rem;white-space:nowrap}
.download-btn:hover,.pan-btn:hover{background:var(--accent-hover);text-decoration:none}
/* ---- 布局：顶栏补偿 + 侧栏弹性固定底部 ---- */
.layout{display:flex;min-height:100vh;padding-top:var(--topbar-h)}
.sidebar{width:280px;flex:none;background:var(--panel);border-right:1px solid var(--line);
display:flex;flex-direction:column;position:sticky;top:var(--topbar-h);
height:calc(100vh - var(--topbar-h))}
.sidebar-nav{flex:1 1 auto;overflow-y:auto;min-height:0;padding:1rem .9rem}
.sidebar-foot{flex:none;padding:.8rem .9rem;border-top:1px solid var(--line);font-size:.78rem;color:var(--muted)}
.search-box{width:100%;padding:.5rem .7rem;border:1px solid var(--line);border-radius:8px;
background:var(--card);font-size:.9rem;margin-bottom:.9rem;color:var(--ink)}
.search-results{list-style:none;background:var(--card);border:1px solid var(--line);border-radius:8px;
margin:-.6rem 0 .8rem;overflow:hidden;display:none}
.search-results li a{display:block;padding:.45rem .7rem;font-size:.85rem}
.search-results li a:hover{background:var(--purple-soft);text-decoration:none}
.nav-group{margin-bottom:.4rem}
.nav-group summary{cursor:pointer;font-weight:700;font-size:.86rem;color:var(--purple-deep);
padding:.35rem .2rem;list-style:none}
.nav-group summary::-webkit-details-marker{display:none}
.nav-group summary::before{content:"▸ ";color:var(--muted)}
.nav-group[open] summary::before{content:"▾ "}
.nav-link{display:block;padding:.35rem .6rem .35rem 1.4rem;border-radius:8px;font-size:.9rem;color:var(--ink)}
.nav-link:hover{background:var(--purple-soft);text-decoration:none}
.nav-link.current{background:var(--purple-soft);color:var(--purple-deep);font-weight:700}
/* ---- 主区 ---- */
.main{flex:1;min-width:0;display:flex;flex-direction:column}
.content{flex:1;max-width:860px;width:100%;margin:0 auto;padding:2rem 1.5rem 3rem}
.crumb{font-size:.85rem;color:var(--muted);margin-bottom:1.2rem}
.crumb a{color:var(--muted)}
h1{font-size:1.75rem;line-height:1.35;margin:.2rem 0 1rem;padding-left:.7rem;border-left:5px solid var(--purple)}
h2{font-size:1.25rem;margin:1.8rem 0 .8rem;padding-left:.55rem;border-left:4px solid var(--purple-soft)}
p{margin:.7rem 0}
ul,ol{padding-left:1.4rem;margin:.7rem 0}
li{margin:.3rem 0}
figure{margin:1.2rem 0;text-align:center}
figcaption{font-size:.85rem;color:var(--muted);margin-top:.45rem}
blockquote{border-left:4px solid var(--purple-soft);background:var(--card);
padding:.7rem 1rem;margin:1rem 0;border-radius:0 var(--radius) var(--radius) 0;color:var(--ink)}
.tip{background:var(--card);border:1px solid var(--line);border-left:4px solid var(--accent);
border-radius:0 var(--radius) var(--radius) 0;padding:.7rem 1rem;margin:1.2rem 0;font-size:.92rem}
.pager{display:flex;gap:.8rem;margin-top:2.4rem}
.pager a{flex:1;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
padding:.7rem .9rem;font-size:.9rem}
.pager a:hover{border-color:var(--purple);text-decoration:none}
.pager .next{text-align:right}
.pager small{display:block;color:var(--muted);font-size:.75rem}
/* ---- 页脚 ---- */
.site-footer{border-top:1px solid var(--line);background:var(--card);margin-top:auto}
.foot-inner{max-width:1180px;margin:0 auto;padding:1.2rem 1.5rem;display:flex;
gap:1.5rem;align-items:flex-start;justify-content:space-between;flex-wrap:wrap}
.foot-note{font-size:.78rem;color:var(--muted);max-width:640px}
.foot-github{flex:none;font-size:.82rem;font-weight:700}
/* ---- 首页 ---- */
.hero{background:linear-gradient(135deg,#2e1065,#7c3aed);color:#fff;border-radius:16px;
padding:2.6rem 1.8rem;margin-bottom:1.8rem}
.hero h1{border:none;color:#fff;padding:0;font-size:2rem;margin:0 0 .6rem}
.hero p{color:#ece7fb;max-width:640px}
.hero .cta-row{display:flex;gap:.8rem;flex-wrap:wrap;margin-top:1.3rem}
.hero .ghost{display:inline-flex;align-items:center;border:1.5px solid rgba(255,255,255,.55);
color:#fff;border-radius:999px;padding:.5rem 1.1rem;font-weight:700;font-size:.92rem}
.hero .ghost:hover{background:rgba(255,255,255,.12);text-decoration:none}
.notice{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
padding:1rem 1.2rem;margin:1.4rem 0;font-size:.93rem}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:.9rem;margin:1.2rem 0}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:1rem 1.1rem}
.card h3{font-size:1rem;margin-bottom:.35rem}
.card p{font-size:.88rem;color:var(--muted);margin:0}
.shot-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:1rem;margin:1.2rem 0}
.shot-grid figure{margin:0}
.more-sites{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
padding:1.1rem 1.3rem;margin:2rem 0}
.more-sites h2{margin-top:0}
.tagcloud{display:flex;flex-wrap:wrap;gap:.5rem}
.tagcloud a{background:var(--panel);border:1px solid var(--line);border-radius:999px;
padding:.25rem .8rem;font-size:.85rem;color:var(--ink)}
.tagcloud a:hover{background:var(--purple-soft);border-color:var(--purple);text-decoration:none}
/* ---- 移动端：三段式顶栏 + 抽屉 ---- */
@media (max-width:900px){
.menu-toggle{display:inline-flex;align-items:center;justify-content:center}
.topbar{gap:.5rem;padding:0 .7rem}
.brand{font-size:.98rem}
.download-btn{padding:.4rem .8rem;font-size:.85rem}
.layout{flex-direction:column}
.sidebar{position:fixed;top:var(--topbar-h);left:0;bottom:0;width:min(300px,84vw);
transform:translateX(-104%);transition:transform .25s ease;z-index:60;height:auto}
body.nav-open .sidebar{transform:translateX(0)}
.sidebar::before{content:"";position:fixed;inset:var(--topbar-h) 0 0 0;background:rgba(20,16,30,.45);
opacity:0;pointer-events:none;transition:opacity .25s ease;z-index:-1}
body.nav-open .sidebar::before{opacity:1;pointer-events:auto}
.content{padding:1.4rem 1rem 2.4rem}
h1{font-size:1.45rem}
.hero h1{font-size:1.5rem}
.hero{padding:2rem 1.2rem}
}
@media (max-width:420px){
.topbar{padding:0 .5rem}
.brand{font-size:.9rem}
.download-btn{padding:.35rem .65rem;font-size:.8rem}
}