:root{
  --paper:#F0E9DA;
  --grid:#CEC0A6;
  --ink:#1C1814;
  --hot:#C2502A;
  --mute:#7A7164;
  --line:rgba(122,113,100,.35);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:"Noto Serif SC","Source Han Serif SC","Songti SC",SimSun,serif;
  -webkit-font-smoothing:antialiased;
  line-height:1.75;
}
.mono{font-family:Consolas,"SF Mono",monospace;letter-spacing:.18em;font-size:12px;color:var(--mute)}
a{color:inherit;text-decoration:none}
.wrap{width:100%;max-width:1180px;margin:0 auto;padding:0 clamp(20px,4vw,72px)}

/* ---------- 首页封面 ---------- */
.hero{
  position:relative;height:100svh;min-height:620px;overflow:hidden;
  display:flex;flex-direction:column;justify-content:space-between;
  padding:clamp(18px,3vw,48px) clamp(20px,4vw,72px);
}
.hero svg#field{position:absolute;inset:0;width:100%;height:100%;display:block;z-index:0}
.hero svg#field path{fill:none;stroke:var(--grid);stroke-width:1;vector-effect:non-scaling-stroke}
.hero .row{position:relative;z-index:2;display:flex;justify-content:space-between;align-items:baseline;gap:16px}
.hero .mid{
  position:relative;z-index:2;display:flex;flex-direction:column;align-items:center;
  gap:clamp(10px,1.4vw,20px);pointer-events:none;
}
.brand{font-size:clamp(15px,1.5vw,22px);font-weight:600;letter-spacing:.1em}
h1.mast{
  margin:0;font-weight:600;letter-spacing:.07em;line-height:1;
  font-size:clamp(40px,10.6vw,168px);white-space:nowrap;
}
h1.mast .dot{
  display:inline-block;width:.16em;height:.16em;border-radius:50%;
  background:var(--hot);margin-left:.26em;vertical-align:baseline;
}
.hero .tag{font-size:clamp(11px,.95vw,14px);letter-spacing:.3em;color:var(--mute)}
.hero .foot{
  position:relative;z-index:2;display:flex;justify-content:space-between;align-items:baseline;
  gap:16px;border-top:1px solid var(--line);padding-top:clamp(8px,1.1vw,16px);
}
.scroll{
  position:absolute;left:50%;bottom:clamp(58px,8vh,96px);transform:translateX(-50%);
  z-index:2;font-size:11px;letter-spacing:.32em;color:var(--mute);opacity:.8;
}

/* ---------- 列表 ---------- */
section{padding:clamp(56px,9vw,120px) 0;position:relative}
.sec-head{display:flex;justify-content:space-between;align-items:baseline;
  border-bottom:1px solid var(--line);padding-bottom:14px;margin-bottom:clamp(24px,4vw,48px)}
.sec-head h2{margin:0;font-size:clamp(18px,2.2vw,28px);font-weight:600;letter-spacing:.08em}

.lead{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));
  gap:clamp(20px,3vw,44px);
}
.item{display:flex;flex-direction:column;gap:10px;padding-top:16px;border-top:1px solid var(--line)}
.item .no{font-size:11px;letter-spacing:.24em;color:var(--mute)}
.item h3{margin:0;font-size:clamp(19px,2vw,25px);font-weight:600;line-height:1.45;letter-spacing:.02em}
.item p{margin:0;font-size:14px;color:#4A4238;line-height:1.8}
.item .meta{font-size:11px;letter-spacing:.2em;color:var(--mute)}

.archive{display:flex;flex-direction:column}
.arc-row{
  display:grid;grid-template-columns:110px 1fr auto;gap:16px;align-items:baseline;
  padding:18px 0;border-bottom:1px solid var(--line);transition:background .18s;
}
.arc-row:hover{background:rgba(194,80,42,.045)}
.arc-row .d{font-size:12px;letter-spacing:.16em;color:var(--mute);font-family:Consolas,monospace}
.arc-row .t{font-size:clamp(15px,1.5vw,18px);letter-spacing:.02em}
.arc-row .n{font-size:12px;letter-spacing:.16em;color:var(--mute);font-family:Consolas,monospace}

/* ---------- 文章页 ---------- */
.page-head{padding:clamp(28px,4vw,56px) 0 clamp(20px,3vw,36px);
  border-bottom:1px solid var(--line);position:relative}
.page-head .row{display:flex;justify-content:space-between;align-items:baseline;gap:16px}
.crumb{font-size:12px;letter-spacing:.22em;color:var(--mute);font-family:Consolas,monospace}
.issue-title{
  margin:clamp(18px,3vw,34px) 0 10px;font-size:clamp(28px,4.4vw,54px);
  font-weight:600;line-height:1.28;letter-spacing:.02em;max-width:20em;
}
.issue-sub{font-size:clamp(14px,1.3vw,17px);color:#4A4238;max-width:34em}
.byline{display:flex;gap:22px;flex-wrap:wrap;margin-top:18px;
  font-size:11px;letter-spacing:.2em;color:var(--mute);font-family:Consolas,monospace}

article{padding-top:clamp(30px,5vw,64px)}
.body{max-width:34em}
.body p{margin:0 0 1.35em;font-size:clamp(16px,1.15vw,17.5px);line-height:1.95;letter-spacing:.01em}
.body h3{
  margin:2.4em 0 .9em;font-size:clamp(18px,1.6vw,21px);font-weight:600;letter-spacing:.04em;
  display:flex;align-items:baseline;gap:14px;
}
.body h3 .k{font-family:Consolas,monospace;font-size:11px;letter-spacing:.18em;color:var(--hot)}
.body blockquote{
  margin:1.8em 0;padding:2px 0 2px 20px;border-left:2px solid var(--hot);
  font-size:15px;color:#4A4238;
}
.spec{
  margin:2.4em 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));
}
.spec div{padding:14px 0}
.spec .k{display:block;font-family:Consolas,monospace;font-size:10px;letter-spacing:.2em;color:var(--mute)}
.spec .v{display:block;font-size:16px;margin-top:4px}

footer.site{
  border-top:1px solid var(--line);margin-top:clamp(56px,9vw,110px);
  padding:clamp(24px,3vw,40px) 0;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
}

/* 静态网格背景（文章页） */
.gridbg{
  background-image:
    linear-gradient(to right, rgba(206,192,166,.5) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(206,192,166,.5) 1px, transparent 1px);
  background-size:32px 32px;
}

@media (max-width:560px){
  .arc-row{grid-template-columns:78px 1fr;gap:10px}
  .arc-row .n{display:none}
}