/* 2026 living contract: seal red, dossier cream, stamp pad */
:root{
  --seal:#9b1c2c;
  --cream:#f4ead8;
  --ink:#2a1c16;
  --mute:#6a5a50;
  --sans:"Noto Sans SC","PingFang SC",sans-serif;
  --serif:"Noto Serif SC","Songti SC",serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
section[id]{scroll-margin-top:64px}
body{margin:0;background:var(--cream);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(--seal)}
.skip{position:absolute;left:-999px}
.skip:focus{left:8px;top:8px;background:var(--seal);color:#fff;padding:8px;z-index:40}
.sealbar{position:sticky;top:0;z-index:30;display:flex;justify-content:space-between;align-items:center;padding:10px 20px;background:#3a2018;color:var(--cream)}
.nm small{display:block;font-size:11px;font-weight:400;letter-spacing:.1em;color:#e0b4a0}
#nav{display:flex;flex-wrap:wrap;gap:8px 14px;align-items:center}
#nav a{font-size:13px;color:#e0b4a0}
#nav a.on{color:#fff}
.go{background:var(--seal)!important;color:#fff!important;padding:6px 12px;font-weight:700}
.menu{display:none;background:transparent;color:var(--cream);border:1px solid #e0b4a0;padding:6px 10px}
.deskshot>img{width:100%;height:min(52vh,480px);object-fit:cover}
.pact{width:min(840px,calc(100% - 32px));margin:20px auto 0;background:#fffdf6;padding:28px;border:1px solid #e0d0b8;position:relative}
.pact:after{content:"印";position:absolute;right:24px;top:24px;width:56px;height:56px;border:3px solid var(--seal);color:var(--seal);border-radius:50%;display:flex;align-items:center;justify-content:center;font-family:var(--serif);opacity:.35;transform:rotate(-12deg)}
.k{font-size:12px;letter-spacing:.16em;color:var(--seal);margin:0 0 8px}
h1,h2,h3{margin:0 0 10px;line-height:1.25;font-family:var(--serif)}
h1{font-size:clamp(1.5rem,3.6vw,2.4rem)}
.gate{margin:16px 0;padding:12px;background:#f8e4dc;border-left:8px solid var(--seal)}
.gate p{margin:4px 0 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(--seal);color:#fff;border:0;font-weight:700;font-size:14px}
.btn.ghost{background:transparent;color:var(--ink);border:1px solid var(--seal);font-weight:400}
.w{width:min(1040px,calc(100% - 32px));margin:0 auto;padding:64px 0}
.file{background:#e8dcc8}
.tri,.g2,.four{display:grid;gap:14px;margin-top:16px}
.tri{grid-template-columns:repeat(3,1fr)}
.g2{grid-template-columns:1fr 1fr}
.four{grid-template-columns:repeat(4,1fr)}
.tri article,.g2 article,.four article{background:#fffdf6;padding:16px}
.hot{outline:3px solid var(--seal)}
ul{margin:0;padding-left:1.1em}
figure{margin:28px 0 0}
figcaption{font-size:13px;color:var(--mute);margin-top:8px}
footer{background:#3a2018;color:var(--cream)}
.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:#3a2018;padding:10px}
  #nav.open{display:flex}
  .tri,.g2,.four{grid-template-columns:1fr}
  .pact:after{display:none}
  .end{flex-direction:column;align-items:flex-start}
}