/* 2026 darkroom contact sheet: safelight amber, grease-pencil red, paper tooth */
:root{
  --safe:#c45c2a;
  --paper:#f3ead8;
  --ink:#2a1a12;
  --mute:#6e5748;
  --dark:#1a0e0a;
  --sans:"Noto Sans SC","PingFang SC",sans-serif;
  --display:"ZCOOL XiaoWei","Songti SC",serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
section[id]{scroll-margin-top:68px}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);line-height:1.7}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
code{font-family:ui-monospace,monospace;color:var(--safe)}
.skip{position:absolute;left:-999px}
.skip:focus{left:8px;top:8px;background:var(--safe);color:#fff;padding:8px;z-index:40}
.safe{position:sticky;top:0;z-index:30;display:flex;justify-content:space-between;align-items:center;padding:10px 22px;background:var(--dark);color:#f3ead8;
  background-image:repeating-linear-gradient(90deg,#1a0e0a 0 10px,#1a0e0a 10px,transparent 10px,transparent 16px,#1a0e0a 16px 26px);
  background-size:26px 8px;background-repeat:repeat-x;background-position:bottom}
.nm small{display:block;font-size:11px;font-weight:400;letter-spacing:.1em;color:#c4a06a}
#nav{display:flex;flex-wrap:wrap;gap:8px 14px;align-items:center}
#nav a{font-size:13px;color:#c4a06a}
#nav a.on{color:#fff}
.go{background:var(--safe)!important;color:#fff!important;padding:6px 12px;font-weight:700}
.menu{display:none;background:transparent;color:#f3ead8;border:1px solid #c4a06a;padding:6px 10px}
.lighttable>img{width:100%;height:min(54vh,500px);object-fit:cover}
.sheet{width:min(840px,calc(100% - 32px));margin:-48px auto 0;background:var(--paper);padding:28px;border:12px solid #fff;box-shadow:0 0 0 1px #d8cbb4;position:relative}
.sheet:before,.sheet:after{content:"";position:absolute;left:8px;right:8px;height:8px;background-image:radial-gradient(#1a0e0a 3px,transparent 4px);background-size:16px 8px}
.sheet:before{top:4px}
.sheet:after{bottom:4px}
.k{font-size:12px;letter-spacing:.16em;color:var(--safe);margin:0 0 8px}
h1,h2,h3{margin:0 0 10px;line-height:1.2;font-family:var(--display)}
h1{font-size:clamp(1.7rem,4vw,2.7rem)}
.circ{margin:16px 0;padding:12px;background:#efe0c8;box-shadow:inset 0 0 0 3px var(--safe);border-radius:40px}
.circ strong{display:block;margin:4px 0}
.circ p{margin:0;color:var(--mute);font-size:14px}
.acts{display:flex;flex-wrap:wrap;gap:8px}
.btn{display:inline-flex;align-items:center;padding:9px 14px;background:var(--safe);color:#fff;border:0;font-weight:700;font-size:14px}
.btn.ghost{background:transparent;color:var(--ink);border:1px dashed var(--safe);font-weight:400}
.w{width:min(1040px,calc(100% - 32px));margin:0 auto;padding:64px 0}
.dark{background:#2a1a12;color:#f3ead8}
.dark .k{color:#e08a4a}
.tri,.g2,.frames{display:grid;gap:14px;margin-top:16px}
.tri{grid-template-columns:repeat(3,1fr)}
.g2{grid-template-columns:1fr 1fr}
.frames{grid-template-columns:repeat(4,1fr)}
.tri article,.g2 article,.frames article{background:#fff8ea;color:var(--ink);padding:16px}
.dark .frames article{background:#3a2418;color:#f3ead8}
.warn{outline:3px solid var(--safe)}
ul{margin:0;padding-left:1.1em}
figure{margin:28px 0 0}
figcaption{font-size:13px;color:#c4a06a;margin-top:8px}
footer{background:var(--dark);color:#f3ead8}
.end{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:22px 0}
@media(max-width:900px){
  .menu{display:block}
  #nav{display:none;position:absolute;top:52px;left:10px;right:10px;flex-direction:column;background:var(--dark);padding:10px}
  #nav.open{display:flex}
  .tri,.g2,.frames{grid-template-columns:1fr}
  .end{flex-direction:column;align-items:flex-start}
}