:root{--bg:#0d1117;--text:#e6edf3;--dim:#8b949e;--faint:#6e7681;--line:#1c2129;--line2:#30363d;--accent:#58a6ff;--card:#161b22}
@media (prefers-color-scheme:light){:root{--bg:#fff;--text:#1f2328;--dim:#59636e;--faint:#818b98;--line:#e8ebef;--line2:#d0d7de;--accent:#0969da;--card:#f6f8fa}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);font:15px/1.7 ui-sans-serif,system-ui,"PingFang SC","Microsoft YaHei",sans-serif;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.wrap{max-width:1180px;margin:0 auto;padding:0 24px}
header.site{padding:72px 0 0}
.kicker{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);margin:0}
h1{font-size:clamp(44px,6.5vw,68px);line-height:1.08;letter-spacing:-.03em;margin:24px 0 0;font-weight:700}
.lede{font-size:16px;color:var(--dim);max-width:52ch;margin:20px 0 0}
.meta-row{margin:28px 0 0;padding:14px 0;border-top:1px solid var(--line);font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12px;color:var(--dim)}
.toolbar{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin:22px 0 6px}
.search{flex:1 1 260px;max-width:380px;padding:8px 12px;border:1px solid var(--line2);border-radius:4px;background:transparent;color:var(--text);font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12px}
.search:focus{outline:none;border-color:var(--accent)}
.search::placeholder{color:var(--faint)}
select{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12px;padding:7px 9px;border:1px solid var(--line2);border-radius:4px;background:transparent;color:var(--dim)}
.reset{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12px;padding:7px 11px;border:1px solid var(--line2);border-radius:4px;background:transparent;color:var(--faint);cursor:pointer}
.reset:hover{color:var(--accent);border-color:var(--accent)}
#filters[hidden]{display:none}
.fgroup{display:flex;align-items:baseline;gap:10px;flex-wrap:wrap;margin:10px 0 0;padding-bottom:8px;border-bottom:1px solid var(--line)}
.flabel{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:11px;color:var(--faint);min-width:44px;letter-spacing:.06em}
.chips{display:flex;flex-wrap:wrap;gap:7px}
.chips button{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12px;padding:4px 10px;border:1px solid var(--line2);border-radius:4px;background:transparent;color:var(--dim);cursor:pointer;transition:color .16s,border-color .16s}
.chips button:hover{color:var(--text)}
.chips button[aria-pressed=true]{color:var(--accent);border-color:var(--accent)}
/* 多列瀑布流：每列独立堆叠。改用 grid 的话同一行会被"最高的那张"定高，
   矮卡片下方必然空出一大片 —— 这正是之前空白多的根因 */
.grid{columns:4;column-gap:18px;margin-top:26px}
@media (max-width:1100px){.grid{columns:3}}
@media (max-width:760px){.grid{columns:2;column-gap:12px}h1{font-size:32px}}
.card{break-inside:avoid;display:block;margin:0 0 18px;border:1px solid var(--line);border-radius:6px;overflow:hidden;background:var(--card);transition:border-color .16s}
.card:hover{border-color:var(--accent)}
.card img{display:block;width:100%;height:auto;background:var(--line)}
.card .cap{display:block;padding:7px 9px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:10.5px;line-height:1.5;color:var(--faint)}
.card .cap .tags{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ph{display:flex;align-items:center;justify-content:center;min-height:120px;padding:18px;font-family:ui-monospace,monospace;font-size:11px;color:var(--faint);text-align:center}
.pgbar{display:flex;align-items:center;justify-content:center;gap:14px;margin:34px 0 0;padding-top:20px;border-top:1px solid var(--line)}
.pgbar button{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12px;padding:7px 14px;border:1px solid var(--line2);border-radius:4px;background:transparent;color:var(--dim);cursor:pointer}
.pgbar button:hover:not(:disabled){color:var(--accent);border-color:var(--accent)}
.pgbar button:disabled{opacity:.35;cursor:not-allowed}
.pgbar .info{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12px;color:var(--faint);min-width:132px;text-align:center}
.empty{padding:52px 0;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12px;color:var(--faint);display:none;text-align:center}
footer.site{margin-top:56px;padding:24px 0 64px;border-top:1px solid var(--line);font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:11px;color:var(--faint);display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between}
figure.shot{margin:0;display:flex;justify-content:center;background:var(--card);border:1px solid var(--line);border-radius:8px;overflow:hidden}
figure.shot img{max-width:100%;max-height:86vh;object-fit:contain;background:var(--line)}
dl.meta{display:grid;grid-template-columns:96px 1fr;gap:9px 16px;margin:36px 0 0;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12.5px;line-height:1.65}
dl.meta dt{font-size:10.5px;color:var(--faint);padding-top:3px;letter-spacing:.06em}
dl.meta dd{margin:0;color:var(--text);word-break:break-all}
dl.meta dd .hl{color:var(--text)}
dl.meta dd a.tag{display:inline-block;margin:0 6px 6px 0;padding:2px 9px;border:1px solid var(--line2);border-radius:4px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:11.5px;color:var(--dim);transition:color .16s,border-color .16s}
dl.meta dd a.tag:hover{color:var(--accent);border-color:var(--accent)}
.pager{display:flex;justify-content:space-between;gap:16px;margin:40px 0 0;padding-top:18px;border-top:1px solid var(--line);font-size:13px}
.pager a{color:var(--dim)}
.pager a:hover{color:var(--accent)}
.back{display:inline-block;margin:36px 0 20px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12px;color:var(--dim)}
.back:hover{color:var(--accent)}
h2.id-title{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:18px;font-weight:500;margin:0 0 20px;color:var(--dim);letter-spacing:.02em}