:root{
  --bg:#0e0d12;--surface:#17161d;--surface-2:#201f28;--line:#2c2a36;
  --text:#f2efe8;--muted:#9c98a8;--accent:#ff8a3d;--accent-ink:#1a0e05;--accent-2:#8d7bff;
  --radius:14px;--ease:cubic-bezier(.2,.7,.2,1);
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Segoe UI",Roboto,sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,monospace;
  color-scheme:dark;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;overflow-x:clip}
body{margin:0;background:var(--bg);color:var(--text);font:15px/1.6 var(--font);min-height:100vh;display:flex;flex-direction:column}
main{flex:1;width:min(1240px,100% - 32px);margin:0 auto}
a{color:inherit}
img,video{display:block;max-width:100%}
h1,h2,h3{line-height:1.2;margin:0}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

/* 顶栏 */
.topbar{position:sticky;top:0;z-index:10;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:12px max(16px,calc((100% - 1240px)/2));background:rgb(14 13 18/.82);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:8px;font-weight:700;letter-spacing:.02em;text-decoration:none;font-size:17px}
.brand-mark{color:var(--accent);font-size:20px;line-height:1}
.topbar nav{display:flex;align-items:center;gap:14px}
.topbar nav a{color:var(--muted);text-decoration:none;font-size:14px}
.topbar nav a:hover{color:var(--text)}

/* 按钮 */
.btn{display:inline-flex;align-items:center;gap:6px;height:40px;padding:0 16px;border-radius:999px;border:1px solid var(--line);background:var(--surface-2);color:var(--text);font:600 14px/1 var(--font);text-decoration:none;cursor:pointer;transition:background .2s var(--ease),transform .2s var(--ease),border-color .2s}
.btn:hover{border-color:#4a4757;transform:translateY(-1px)}
.btn:disabled{opacity:.6;cursor:progress}
.btn-primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.btn-primary:hover{background:#ff9d5c;border-color:#ff9d5c}
.btn-ghost{background:transparent}
.btn[hidden]{display:none}

/* 首屏 */
.hero{padding:64px 0 28px;position:relative}
.hero::before{content:"";position:absolute;top:0;bottom:0;left:calc(50% - 50vw);right:calc(50% - 50vw);z-index:-1;background:
  radial-gradient(600px 260px at 15% 20%,rgb(255 138 61/.16),transparent 70%),
  radial-gradient(500px 240px at 80% 0%,rgb(141 123 255/.16),transparent 70%),
  linear-gradient(rgb(255 255 255/.035) 1px,transparent 1px) 0 0/24px 24px,
  linear-gradient(90deg,rgb(255 255 255/.035) 1px,transparent 1px) 0 0/24px 24px;
  mask-image:linear-gradient(#000 40%,transparent)}
.eyebrow{margin:0 0 14px;font:600 12px/1 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--accent)}
.hero h1{font-size:clamp(30px,5vw,54px);font-weight:800;letter-spacing:-.01em}
.lede{max-width:620px;color:var(--muted);font-size:16px;margin:18px 0 0}
.lede strong{color:var(--text)}

/* 筛选 */
.controls{position:sticky;top:61px;z-index:5;padding:14px 0 10px;background:linear-gradient(var(--bg) 80%,transparent)}
.filters{display:flex;gap:10px;flex-wrap:wrap}
.search{flex:1 1 280px}
.search input,.sort select,#post-url{width:100%;height:42px;padding:0 16px;border-radius:999px;border:1px solid var(--line);background:var(--surface);color:var(--text);font:inherit}
.search input::placeholder{color:#6f6b7b}
.sort select{width:auto;padding-right:36px;appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--muted) 50%),linear-gradient(135deg,var(--muted) 50%,transparent 50%);background-position:calc(100% - 20px) 18px,calc(100% - 15px) 18px;background-size:5px 5px;background-repeat:no-repeat;cursor:pointer}
.chips{display:flex;gap:8px;overflow-x:auto;padding:12px 0 2px;scrollbar-width:none}
.chips::-webkit-scrollbar{display:none}
.chip{flex:none;display:inline-flex;align-items:center;gap:6px;height:32px;padding:0 13px;border-radius:999px;border:1px solid var(--line);color:var(--muted);text-decoration:none;font-size:13px;transition:all .2s var(--ease)}
.chip span{font:12px var(--mono);opacity:.7}
.chip:hover{color:var(--text);border-color:#4a4757}
.chip.is-active{background:var(--text);border-color:var(--text);color:var(--bg)}
.status{margin:8px 0 0;color:var(--muted);font-size:13px}

/* 卡片网格 */
.board{display:grid;grid-template-columns:repeat(auto-fill,minmax(270px,1fr));gap:18px;padding:8px 0 24px;transition:opacity .2s}
.board[aria-busy=true]{opacity:.5}
.card{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:transform .25s var(--ease),border-color .25s}
.card:hover{transform:translateY(-3px);border-color:#45424f}
.card-link{display:block;text-decoration:none;height:100%}
.thumb{position:relative;aspect-ratio:16/10;background:var(--surface-2);overflow:hidden}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.card:hover .thumb img{transform:scale(1.04)}
.thumb-fallback{display:grid;place-items:center;height:100%;font:800 48px var(--font);color:var(--accent-2)}
.badge-video{position:absolute;left:10px;top:10px;padding:3px 8px;border-radius:6px;background:rgb(0 0 0/.6);font-size:11px;font-weight:600}
.card-body{padding:14px 16px 16px}
.cat{display:inline-block;font:600 11px/1 var(--mono);letter-spacing:.06em;color:var(--accent);margin-bottom:8px;text-decoration:none}
.kind{display:inline-block;margin-left:8px;padding:2px 7px;border-radius:5px;border:1px solid rgb(141 123 255/.45);color:var(--accent-2);font:600 10.5px/1.3 var(--mono);vertical-align:1px}
.card h3{font-size:16px;font-weight:700}
.card-desc{margin:6px 0 10px;color:var(--muted);font-size:13.5px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.meta{display:flex;flex-wrap:wrap;gap:4px 12px;margin:0;font-size:12px;color:#7d7989}
.card-play{position:absolute;right:12px;top:12px;display:grid;place-items:center;width:40px;height:40px;border-radius:50%;background:var(--accent);color:var(--accent-ink);opacity:0;transform:scale(.85);transition:all .25s var(--ease);box-shadow:0 6px 20px rgb(0 0 0/.4)}
.card:hover .card-play,.card-play:focus-visible{opacity:1;transform:none}
@media (hover:none){.card-play{opacity:1;transform:none}}
.pager{display:flex;justify-content:center;padding:8px 0 48px}

/* 弹窗 */
dialog{border:1px solid var(--line);border-radius:20px;background:var(--surface);color:var(--text);padding:0;max-width:min(980px,calc(100% - 24px));max-height:calc(100% - 24px)}
dialog::backdrop{background:rgb(5 4 8/.72);backdrop-filter:blur(6px)}
dialog[open]{animation:pop .25s var(--ease)}
@keyframes pop{from{opacity:0;transform:translateY(8px) scale(.98)}}
.dialog-close{position:absolute;right:12px;top:12px;z-index:2;display:grid;place-items:center;width:36px;height:36px;border-radius:50%;border:1px solid var(--line);background:rgb(23 22 29/.85);color:var(--text);cursor:pointer}
.sheet{width:440px}
.sheet h2{font-size:20px;padding:28px 28px 0}
.sheet>p{padding:0 28px;color:var(--muted)}
#submit-form{display:grid;gap:10px;padding:0 28px 28px}
#submit-form label{font-size:13px;color:var(--muted)}
#submit-form .btn{justify-content:center}
.form-success{color:#7bd88f}.form-error{color:#ff7a7a}
#submit-feedback{margin:0;min-height:1.6em;font-size:13px}

.game-dialog{width:980px}
.gd-layout,.detail-layout{display:grid;grid-template-columns:1.35fr 1fr}
.gd-media{background:#000;display:grid;place-items:center;min-height:240px}
.gd-media img,.gd-media video{width:100%;height:100%;max-height:72vh;object-fit:contain}
.gd-copy{padding:28px;display:flex;flex-direction:column;gap:12px;overflow:auto}
.gd-copy h2,.gd-copy h1{font-size:24px;font-weight:800}
.gd-copy p{margin:0}
.gd-author{color:var(--muted);font-size:13px}
.gd-author a{color:var(--text)}
.subtitle{color:var(--muted)}
blockquote{margin:0;padding:10px 14px;border-left:3px solid var(--accent-2);background:var(--surface-2);border-radius:0 10px 10px 0;color:#c9c5d3;font-size:13px;white-space:pre-line;max-height:160px;overflow:auto}
.tags{display:flex;flex-wrap:wrap;gap:6px}
.tags span{font:12px var(--mono);color:var(--muted);background:var(--surface-2);padding:3px 8px;border-radius:6px}
.gd-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:4px}
.gd-permalink{font-size:12px;color:var(--muted)}
.hint{font-size:12px;color:#7d7989}

/* 详情页 / 关于 */
.detail{padding:24px 0 56px}
.back{display:inline-block;margin-bottom:16px;color:var(--muted);text-decoration:none;font-size:14px}
.detail-layout{border:1px solid var(--line);border-radius:20px;overflow:hidden;background:var(--surface)}
.prose{max-width:720px;padding:48px 0 64px}
.prose h1{font-size:32px;margin-bottom:16px}
.prose h2{font-size:18px;margin:28px 0 8px}
.prose p,.prose li{color:#cfcbd8}

.footer{border-top:1px solid var(--line);padding:24px 16px;text-align:center;color:#6f6b7b;font-size:12px}

@media (max-width:760px){
  .hero{padding-top:40px}
  .controls{top:57px}
  .gd-layout,.detail-layout{grid-template-columns:1fr}
  .gd-copy{padding:20px}
  .board{grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:12px}
}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}