:root{--bg:#f6f7f9;--fg:#1c2027;--muted:#5b6472;--card:#fff;--line:#e3e6ea;--accent:#1a6fd4;--warn-bg:#fff5e0;--warn-fg:#7a5200;
  --shadow:0 1px 2px rgba(16,24,40,.06),0 8px 24px rgba(16,24,40,.06)}
@media (prefers-color-scheme:dark){:root{--bg:#14171c;--fg:#e9edf2;--muted:#9aa6b4;--card:#1c2027;--line:#2b313a;--accent:#6fb0ff;--warn-bg:#3a2f14;--warn-fg:#f0d9a0;--shadow:none}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;-webkit-text-size-adjust:100%}
a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}
.wrap{max-width:64rem;margin:0 auto;padding:1.25rem 1rem 3rem}
header.site{display:flex;flex-wrap:wrap;gap:.5rem 1rem;align-items:baseline;justify-content:space-between;padding:.5rem 0 1rem;border-bottom:1px solid var(--line)}
header.site .brand{font-size:1.25rem;font-weight:650;letter-spacing:.01em}
header.site nav{display:flex;gap:1rem;font-size:.95rem}
h1{font-size:1.6rem;line-height:1.3;margin:1.5rem 0 .35rem}
.sub{color:var(--muted);margin:0 0 1.25rem}
.notice{background:var(--warn-bg);color:var(--warn-fg);border:1px solid rgba(122,82,0,.18);border-radius:.6rem;padding:.7rem .85rem;font-size:.92rem;margin:1rem 0 1.5rem}
.toolbar{display:flex;gap:.6rem;flex-wrap:wrap;align-items:center;margin:1rem 0 1.25rem}
.toolbar input,.toolbar select{font:inherit;padding:.5rem .7rem;border:1px solid var(--line);border-radius:.55rem;background:var(--card);color:var(--fg);min-width:0}
.toolbar input{flex:1 1 14rem}
.grid{display:grid;gap:.9rem;grid-template-columns:repeat(auto-fill,minmax(15rem,1fr))}
.card{display:flex;flex-direction:column;gap:.5rem;background:var(--card);border:1px solid var(--line);border-radius:.75rem;padding:1rem;box-shadow:var(--shadow);transition:transform .12s ease,border-color .12s ease}
.card:hover{transform:translateY(-2px);border-color:color-mix(in srgb,var(--accent) 45%,var(--line))}
.card h2{font-size:1.05rem;margin:0;line-height:1.4}
.card .desc{color:var(--muted);font-size:.92rem;flex:1 1 auto;margin:0}
.card .go{font-weight:600;font-size:.92rem}
.badges{display:flex;gap:.35rem;flex-wrap:wrap}
.badge{font-size:.75rem;line-height:1;padding:.32rem .5rem;border-radius:999px;border:1px solid var(--line);color:var(--muted);background:transparent}
.badge.demo{border-color:#c98b12;color:#8a5d00;background:rgba(201,139,18,.1)}
.badge.planning{border-style:dashed}
.badge.online{border-color:#1f7a44;color:#155e33;background:rgba(31,122,68,.1)}
.meta{color:var(--muted);font-size:.85rem;margin:0}
.breadcrumb{font-size:.9rem;color:var(--muted);margin:1.1rem 0 0}
.panel{background:var(--card);border:1px solid var(--line);border-radius:.75rem;padding:1.1rem;margin:1rem 0}
.panel h2{font-size:1.1rem;margin:0 0 .5rem}
.panel ul,.panel ol{margin:.4rem 0 .2rem;padding-left:1.3rem}
.panel li{margin:.3rem 0}
.placeholder{border:1.5px dashed var(--line);border-radius:.75rem;padding:1.4rem 1rem;text-align:center;color:var(--muted);background:repeating-linear-gradient(135deg,transparent 0 .6rem,rgba(128,128,128,.045) .6rem 1.2rem)}
.placeholder strong{display:block;color:var(--fg);font-size:1rem;margin-bottom:.3rem}
.slot{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.82rem;background:var(--bg);border:1px solid var(--line);border-radius:.5rem;padding:.7rem;margin-top:.8rem;text-align:left;white-space:pre-wrap;color:var(--muted)}
.tags{display:flex;gap:.35rem;flex-wrap:wrap;margin:.6rem 0 0}
.tool-actions{margin:0 0 .7rem}
.btn{display:inline-block;font-weight:600;font-size:.92rem;padding:.45rem .8rem;border:1px solid var(--accent);border-radius:.55rem}
.btn:hover{text-decoration:none;background:color-mix(in srgb,var(--accent) 10%,transparent)}
.tool-frame{display:block;width:100%;height:46rem;border:1px solid var(--line);border-radius:.75rem;background:#f8fafc}
footer.site{border-top:1px solid var(--line);margin-top:2.5rem;padding-top:1rem;color:var(--muted);font-size:.88rem;display:flex;gap:.5rem 1rem;flex-wrap:wrap;justify-content:space-between}
.pager{display:flex;gap:.7rem;justify-content:space-between;margin:1.5rem 0 0;font-size:.92rem}
.empty{color:var(--muted);padding:1.5rem;border:1px dashed var(--line);border-radius:.75rem;text-align:center}
code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.88em;background:var(--bg);border:1px solid var(--line);border-radius:.3rem;padding:.05em .35em}
.skip{position:absolute;left:-9999px}.skip:focus{left:.5rem;top:.5rem;background:var(--card);border:1px solid var(--accent);border-radius:.4rem;padding:.4rem .6rem;z-index:9}
@media (max-width:30rem){h1{font-size:1.35rem}.wrap{padding:1rem .8rem 2.5rem}.grid{grid-template-columns:1fr}}
@media (prefers-reduced-motion:reduce){.card{transition:none}}