/* ------------------------------------------------------------------
   hi55555.cn /me — 冷灰 · 宋体 · 发丝线
   设计语言与头像一致：冷色纸底、墨色、单字重、极细分隔线、宽字距小标签
   ------------------------------------------------------------------ */

:root{
  --paper:#eef1f2;
  --paper-2:#f4f6f7;
  --ink:#0b0e11;
  --ink-2:#2b3237;
  --mute:#78838b;
  --line:#c4ccd1;
  --line-soft:#dbe0e3;
  --serif:"Source Han Serif SC","Noto Serif CJK SC","Songti SC","SimSun",serif;
  --mono:ui-monospace,"SF Mono","JetBrains Mono","DejaVu Sans Mono","Noto Sans Mono",monospace;
  --gut:clamp(20px,5vw,64px);
  --maxw:1160px;
}

*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--serif);
  font-size:17px;
  line-height:1.95;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  font-kerning:normal;
  font-variant-numeric:tabular-nums;
}
::selection{background:#0b0e11;color:#eef1f2;}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 var(--gut);}
.mono{font-family:var(--mono);font-size:11.5px;letter-spacing:.16em;color:var(--mute);}
a{color:inherit;text-decoration:none;}
a:hover{color:var(--ink);}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{
  outline:1px solid var(--ink);outline-offset:4px;
}
.skip{position:absolute;left:-9999px;}
.skip:focus{left:16px;top:12px;z-index:99;background:var(--ink);color:var(--paper);padding:8px 14px;font-size:13px;}

/* ---------------------------- topbar ---------------------------- */
.topbar{
  position:sticky;top:0;z-index:20;
  background:rgba(238,241,242,.94);
  backdrop-filter:saturate(120%) blur(6px);
  border-bottom:1px solid var(--line);
}
.topbar .wrap{display:flex;align-items:center;justify-content:space-between;height:52px;}
.brand{font-size:12px;letter-spacing:.30em;font-family:var(--mono);color:var(--ink);}
.brand .dot{color:var(--mute);padding:0 .35em;}
.tnav{display:flex;align-items:center;gap:clamp(14px,3vw,34px);}
.tnav a{transition:color .12s;}
.tnav-cta{border-bottom:1px solid var(--line);padding-bottom:1px;color:var(--ink);}
.tnav-cta:hover{border-color:var(--ink);}

/* ---------------------------- hero ---------------------------- */
.hero{
  display:grid;
  grid-template-columns:1fr 300px;
  gap:clamp(28px,6vw,80px);
  align-items:end;
  padding-top:clamp(56px,11vh,132px);
  padding-bottom:clamp(40px,7vh,86px);
}
.kicker{margin:0 0 26px;}
.kicker .sep{color:var(--line);padding:0 .5em;}
.hero h1{
  margin:0;
  font-size:clamp(58px,11.5vw,132px);
  font-weight:400;
  line-height:.94;
  letter-spacing:.01em;
}
.lead{
  margin:clamp(22px,3.4vh,34px) 0 0;
  font-size:clamp(17px,1.55vw,20px);
  line-height:1.85;
  color:var(--ink-2);
  letter-spacing:.03em;
}
.hero-side{border-top:1px solid var(--ink);padding-top:14px;}
.cline{display:flex;justify-content:space-between;align-items:baseline;gap:14px;padding:9px 0;border-bottom:1px solid var(--line-soft);}
.cline .k{font-size:10.5px;}
.cline .v{font-size:14.5px;letter-spacing:.06em;color:var(--ink);}
.cline a.v:hover{text-decoration:underline;text-underline-offset:4px;}
.note{margin:14px 0 0;font-size:13px;line-height:1.8;color:var(--mute);}

/* ---------------------------- sections ---------------------------- */
.sec{
  display:grid;
  grid-template-columns:72px 1fr;
  gap:clamp(8px,3vw,36px);
  padding:clamp(34px,5.5vh,60px) var(--gut);
  border-top:1px solid var(--line);
}
.rail{font-size:11px;letter-spacing:.18em;color:var(--mute);padding-top:6px;}
.stitle{
  margin:0 0 clamp(18px,2.6vh,26px);
  font-size:clamp(24px,3vw,34px);
  font-weight:400;
  line-height:1.4;
  letter-spacing:.02em;
}
.stitle .mono{display:block;margin-bottom:10px;font-size:10.5px;color:var(--mute);letter-spacing:.26em;}
.prose{max-width:62ch;}
.prose p{margin:0 0 1.15em;}
.prose strong{font-weight:600;}
.more a{border-bottom:1px solid var(--line);padding-bottom:2px;}
.more a:hover{border-color:var(--ink);}
.sub{margin:-4px 0 26px;font-size:14px;color:var(--mute);max-width:62ch;line-height:1.9;}

.todo{color:var(--mute);border-bottom:1px dashed var(--line);font-size:.92em;}

/* facts */
.facts{margin:0;max-width:70ch;}
.facts > div{
  display:grid;grid-template-columns:110px 1fr;gap:16px;
  padding:14px 0;border-bottom:1px solid var(--line-soft);
}
.facts dt{font-size:10.5px;padding-top:5px;}
.facts dd{margin:0;}

/* timeline */
.timeline{list-style:none;margin:0;padding:0;max-width:70ch;}
.timeline li{display:grid;grid-template-columns:110px 1fr;gap:16px;padding:14px 0;border-bottom:1px solid var(--line-soft);}
.timeline .yr{font-size:11px;padding-top:6px;}
.timeline .tx{color:var(--ink-2);}
.timeline .tx a{border-bottom:1px solid var(--line);padding-bottom:1px;}
.timeline .tx a:hover{border-color:var(--ink);}
/* 长列表：年份列窄一点、正文小一点，篇幅长而不必挤 */
.tl-long{max-width:74ch;}
.tl-long li{padding:16px 0;grid-template-columns:92px 1fr;gap:14px;}
.tl-long .yr{font-size:10px;letter-spacing:.12em;padding-top:7px;}
.tl-long .tx{font-size:15.5px;line-height:1.9;}

/* works */
.works{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid var(--line);}
.work{
  padding:24px 26px 22px 0;
  border-bottom:1px solid var(--line-soft);
  display:flex;flex-direction:column;gap:12px;
}
.work + .work{padding-left:26px;border-left:1px solid var(--line-soft);}
.w-head{display:flex;align-items:baseline;justify-content:space-between;gap:12px;}
.w-head h3{margin:0;font-size:20px;font-weight:500;letter-spacing:.02em;}
.w-meta{font-size:10px;white-space:nowrap;}
.w-desc{margin:0;font-size:14.5px;line-height:1.85;color:var(--ink-2);flex:1;}
.w-links{display:flex;flex-wrap:wrap;gap:16px;margin-top:6px;}
.w-links a, .linkbtn{font-size:11px;letter-spacing:.12em;color:var(--ink);}
.w-links a:hover, .linkbtn:hover{border-bottom:1px solid var(--ink);}
.linkbtn{background:none;border:0;padding:0;cursor:pointer;font-family:var(--mono);}
.dim{font-size:11px;color:var(--mute);}

/* tags */
.tags{list-style:none;margin:0 0 18px;padding:0;display:flex;flex-wrap:wrap;gap:10px;}
.tags li{
  font-size:13.5px;
  padding:6px 14px;
  border:1px solid var(--line);
  color:var(--ink-2);
  letter-spacing:.04em;
  background:var(--paper-2);
}
.tags li.todo{border-style:dashed;color:var(--mute);}

/* reach */
.reach{list-style:none;margin:0 0 40px;padding:0;max-width:74ch;}
.reach li{
  display:grid;grid-template-columns:64px minmax(180px,1fr) auto;
  gap:18px;align-items:baseline;
  padding:12px 0;border-bottom:1px solid var(--line-soft);
}
.reach .k{font-size:10.5px;}
.reach .v{font-size:18px;letter-spacing:.04em;color:var(--ink);}
.reach a.v:hover{text-decoration:underline;text-underline-offset:5px;}
.reach .hint{font-size:12.5px;color:var(--mute);}

/* ---------------------------- console ---------------------------- */
.console{border:1px solid var(--line);background:var(--paper-2);}
.tabs{display:flex;border-bottom:1px solid var(--line);}
.tabs button{
  flex:0 0 auto;
  font-family:var(--mono);font-size:11px;letter-spacing:.18em;
  padding:13px 22px;background:none;border:0;border-right:1px solid var(--line);
  color:var(--mute);cursor:pointer;
}
.tabs button.on{background:var(--paper);color:var(--ink);}
.pane{padding:22px;}
.pane-head{display:flex;justify-content:space-between;align-items:center;gap:18px;margin-bottom:8px;flex-wrap:wrap;}
.sel{display:flex;align-items:center;gap:12px;}
.sel select{
  font-family:var(--mono);font-size:12px;
  background:transparent;border:0;border-bottom:1px solid var(--line);
  padding:4px 2px;color:var(--ink);cursor:pointer;
}
.count{font-size:10.5px;}

.clist{list-style:none;margin:8px 0 26px;padding:0;max-height:420px;overflow:auto;}
.clist li{padding:16px 0;border-top:1px solid var(--line-soft);}
.clist .who{display:flex;align-items:baseline;gap:12px;margin-bottom:6px;flex-wrap:wrap;}
.clist .nm{font-size:14px;font-weight:500;}
.clist .when{font-family:var(--mono);font-size:10px;color:var(--mute);letter-spacing:.1em;}
.clist .txt{font-size:15px;line-height:1.85;white-space:pre-wrap;word-break:break-word;}
.clist .empty{padding:18px 0;color:var(--mute);font-size:14px;}

/* forms */
.form{display:flex;flex-direction:column;gap:16px;}
.frow{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.field{display:flex;flex-direction:column;gap:6px;min-width:0;}
.field > span{font-size:10px;letter-spacing:.2em;}
.field input,.field textarea{
  font-family:var(--serif);font-size:15px;line-height:1.7;
  background:transparent;border:0;border-bottom:1px solid var(--line);
  padding:8px 0;color:var(--ink);resize:vertical;
  width:100%;min-width:0;
}
.field input::placeholder,.field textarea::placeholder{color:#a3acb2;}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--ink);}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden;}
.factions{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:4px;flex-wrap:wrap;}
.btn{
  font-family:var(--mono);font-size:11.5px;letter-spacing:.2em;
  background:var(--ink);color:var(--paper);border:1px solid var(--ink);
  padding:11px 26px;cursor:pointer;
}
.btn:hover{background:transparent;color:var(--ink);}
.btn[disabled]{opacity:.5;cursor:default;}
.fnote{font-size:10px;letter-spacing:.14em;}

/* ---------------------------- footer ---------------------------- */
.foot{border-top:1px solid var(--line);padding-top:22px;padding-bottom:40px;}
.frow2{display:flex;flex-wrap:wrap;gap:10px 28px;justify-content:space-between;}
.frow2 .mono{font-size:10px;}
/* 备案：ICP 与公安备案，按工信部要求放在页脚并链接到备案系统 */
.frow2.beian{margin-top:16px;padding-top:14px;border-top:1px solid var(--line-soft);justify-content:flex-start;gap:8px 26px;}
.frow2.beian a{display:inline-flex;align-items:center;gap:5px;font-size:10px;letter-spacing:.1em;color:var(--mute);}
.frow2.beian a:hover{color:var(--ink);}
.frow2.beian img{display:block;opacity:.75;}

/* ---------------------------- 404 ---------------------------- */
.nf{
  max-width:calc(34em + var(--gut) * 2);
  padding-top:clamp(64px,15vh,150px);
  padding-bottom:clamp(64px,15vh,150px);
}
.nf h1{
  margin:0 0 24px;
  font-size:clamp(34px,6vw,54px);
  font-weight:400;
  line-height:1.22;
  letter-spacing:.02em;
}
.nf .lead a{border-bottom:1px solid var(--line);padding-bottom:1px;}
.nf .lead a:hover{border-color:var(--ink);}

/* ---------------------------- responsive ---------------------------- */
@media (max-width:900px){
  .hero{grid-template-columns:1fr;gap:34px;align-items:start;}
  .hero-side{max-width:420px;}
  .sec{grid-template-columns:1fr;gap:0;}
  .rail{display:none;}
  .works{grid-template-columns:1fr;}
  .work{padding:22px 0 !important;border-left:0 !important;}
  .work + .work{border-top:1px solid var(--line-soft);}
  .facts > div,.timeline li{grid-template-columns:84px 1fr;}
}
@media (max-width:620px){
  body{font-size:16px;}
  .tnav a:not(.tnav-cta):not(.tnav-keep){display:none;}
  .reach li{grid-template-columns:1fr;gap:2px;}
  .reach .hint{grid-column:1;}
  .frow{grid-template-columns:1fr;}
  .pane{padding:16px;}
  .clist .txt{font-size:14.5px;}
}

@media (prefers-reduced-motion:no-preference){
  .hero-main,.hero-side{animation:rise .5s ease-out both;}
  .hero-side{animation-delay:.06s;}
  @keyframes rise{from{opacity:0;transform:translateY(6px);}to{opacity:1;transform:none;}}
}