/* ============================================================
   纸墨像素 / 说明书分页
   材质规则：零模糊 · 零圆角(>4px) · 零渐变 · 全硬边 · 实心投影
   ============================================================ */
:root{
  --manual-paper:#FBF8F0; --manual-paper-2:#F3EEE1; --manual-tint:#EFE8D8; --manual-tint-2:#E4DCC8;
  --manual-ink:#1A1714; --manual-ink-2:#4A443C; --manual-ink-3:#6B6250; --manual-ink-4:#B8AE96;
  --manual-red:#C8452A; --manual-red-dk:#9A3320; --manual-moss:#7A8B6F; --manual-moss-dk:#5A6A50;
  --manual-indigo:#2B4A8F; --manual-indigo-dk:#1D3465;
  --manual-serif-cn:"Songti SC","STSong","Source Han Serif SC","Noto Serif CJK SC","SimSun",serif;
  --manual-sans-cn:"PingFang SC","Microsoft YaHei UI","Noto Sans CJK SC",sans-serif;
  --manual-mono:Consolas,"Courier New",monospace;
  --manual-serif-la:Georgia,"Times New Roman",serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--portfolio-header-height, 74px) + 16px)}
.paper-world{position:relative;z-index:2;background:var(--manual-paper);color:var(--manual-ink);font:16px/1.8 var(--manual-sans-cn);-webkit-font-smoothing:antialiased}
::selection{background:var(--manual-red);color:#fff}
:focus-visible{outline:3px solid var(--manual-red);outline-offset:3px}
a{color:inherit}
img{display:block;max-width:100%}
button{font:inherit;cursor:pointer}

/* ---------- 纸面网点纹理 ---------- */
.grain{position:absolute;inset:0;pointer-events:none;z-index:1;
  background-image:radial-gradient(circle,rgba(26,23,20,.055) .6px,transparent .7px);
  background-size:3px 3px}

/* ---------- 顶部：设计稿说明条 ---------- */
.draft-note{position:relative;background:var(--manual-ink);color:var(--manual-paper);padding:11px 40px;display:flex;align-items:center;gap:18px;flex-wrap:wrap;z-index:40;font:700 10px/1.6 var(--manual-mono);letter-spacing:.1em}
.draft-note b{color:#fff}
.draft-note .lock{margin-left:auto;background:var(--manual-red);color:#fff;padding:5px 10px;letter-spacing:.14em}
.draft-note span{color:#9A9287}

/* ---------- 纸页容器 ---------- */
.page{position:relative;background:var(--manual-paper);padding:0 40px;border-top:8px solid var(--manual-red);min-height:calc(100vh - var(--portfolio-header-height, 74px));display:flex;flex-direction:column}
.page::before{content:"";position:absolute;left:0;top:0;bottom:0;width:1px;background:rgba(26,23,20,.16)}
.page::after{content:"";position:absolute;right:0;top:0;bottom:0;width:1px;background:rgba(26,23,20,.16)}

/* ---------- 页边注栏 ---------- */
.slab{display:flex;align-items:stretch;position:relative;z-index:2;max-width:1320px;margin:0 auto;flex:1 1 auto;width:100%;min-height:100%}
.marginalia{position:relative;align-self:stretch;z-index:2;background:var(--manual-tint);border-right:1px solid var(--manual-ink);padding:34px 18px 40px;width:214px;flex:none;display:flex;flex-direction:column;min-height:100%}
.marginalia .holes{position:absolute;left:0;top:0;bottom:0;width:14px;background:var(--manual-tint-2);
  border-right:1px solid rgba(26,23,20,.22);display:flex;flex-direction:column;align-items:center;justify-content:space-around;padding:20px 0}
.marginalia .holes i{width:7px;height:7px;border-radius:50%;background:var(--manual-paper);border:1px solid rgba(26,23,20,.4);box-shadow:inset 0 1px 0 rgba(0,0,0,.2)}
.marginalia .mnav{position:sticky;top:calc(var(--portfolio-header-height, 74px) + 18px);margin-left:16px;z-index:1}
.marginalia .mlist{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.marginalia .mlist li{position:relative}
.marginalia .mlist a{display:block;padding:10px 10px 10px 14px;text-decoration:none;color:inherit;position:relative;
  border:1px solid rgba(26,23,20,.22);background:var(--manual-paper);box-shadow:2px 2px 0 var(--manual-tint-2);transition:transform .15s,box-shadow .15s,background .15s}
.marginalia .mlist a::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--manual-ink)}
.marginalia .mlist li:nth-child(1) a::before{background:var(--manual-red)}
.marginalia .mlist li:nth-child(2) a::before{background:var(--manual-ink)}
.marginalia .mlist li:nth-child(3) a::before{background:var(--manual-moss)}
.marginalia .mlist li:nth-child(4) a::before{background:var(--manual-indigo)}
.marginalia .mlist li:nth-child(5) a::before{background:var(--manual-red-dk)}
.marginalia .mlist li:nth-child(6) a::before{background:var(--manual-moss-dk)}
.marginalia .mlist a:hover{background:var(--manual-paper-2);transform:translate(-1px,-1px);box-shadow:3px 3px 0 var(--manual-ink)}
.marginalia .mlist a:hover b{color:var(--manual-red)}
.marginalia .mlist a.on{background:var(--manual-red);color:#fff;border-color:var(--manual-ink);border-width:2px;box-shadow:4px 4px 0 var(--manual-ink);transform:translate(-1px,-1px)}
.marginalia .mlist a.on b{color:#fff}
.marginalia .mlist a.on span{color:rgba(255,255,255,.86)}
.marginalia .mlist a.on::before{background:#fff;width:5px}
.marginalia .mlist b{display:block;font:800 10px/1.4 var(--manual-mono);letter-spacing:.1em;color:var(--manual-ink)}
.marginalia .mlist span{display:block;font:400 10px/1.5 var(--manual-sans-cn);color:var(--manual-ink-3);margin-top:2px}
.marginalia .mtag{margin:auto 0 0 16px;padding-top:16px;border-top:1px solid rgba(26,23,20,.24);
  font:700 9.5px/1.7 var(--manual-mono);letter-spacing:.08em;color:var(--manual-ink-3);position:sticky;bottom:18px}

/* ---------- 正文栏 ---------- */
.body-col{position:relative;z-index:2;flex:1;min-width:0;padding:40px 46px 0 46px}

/* ---------- 索引条 ---------- */
.index-bar{position:sticky;top:74px;z-index:30;background:var(--manual-ink);color:#FBF8F0;border-bottom:1px solid var(--manual-ink);
  display:flex;align-items:stretch;overflow-x:auto;scrollbar-width:none}
.index-bar::-webkit-scrollbar{display:none}
.index-bar a{flex:1;min-width:118px;padding:13px 16px;text-decoration:none;border-right:1px solid rgba(251,248,240,.18);
  font:700 10px/1.4 var(--manual-mono);letter-spacing:.1em;color:#9A9287;display:flex;align-items:center;gap:9px;transition:background .18s,color .18s}
.index-bar a:last-child{border-right:0}
.index-bar a s{text-decoration:none;color:var(--manual-ink-4)}
.index-bar a:hover{background:#26221C;color:#FBF8F0}
.index-bar a.on{background:var(--manual-red);color:#fff}
.index-bar a.on s{color:rgba(255,255,255,.65)}

/* ---------- 新的顶部章节导航：暖纸底色 + 墨色索引 ---------- */
html[data-theme] .site-header{background:var(--manual-paper);color:var(--manual-ink);border-bottom:2px solid var(--manual-ink);backdrop-filter:none;box-shadow:0 4px 0 rgba(26,23,20,.18)}
.site-header .nav-shell{gap:14px;justify-content:space-between}
.site-header .brand{color:var(--manual-ink)}
.site-header .brand strong{color:var(--manual-ink)}
.site-header .brand small{color:var(--manual-red)}
.site-header .nav-tools{gap:9px;margin-left:auto}
.site-header .theme-picker{display:none;color:var(--manual-red)}
.site-header .theme-picker select{background:var(--manual-paper);color:var(--manual-ink);border-color:var(--manual-ink);box-shadow:2px 2px var(--manual-ink)}
.site-header .theme-picker option{background:var(--manual-paper);color:var(--manual-ink)}
.site-header .clock{color:var(--manual-ink)}
.site-header .time-live{background:var(--manual-paper-2);color:var(--manual-ink-3);border-color:var(--manual-ink-3);box-shadow:2px 2px var(--manual-ink)}
.site-header .time-live.is-live{color:var(--manual-moss-dk);border-color:var(--manual-moss-dk)}
.site-header .time-live:hover{color:var(--manual-red);border-color:var(--manual-red)}
.site-header .nav-github:hover{filter:drop-shadow(2px 2px 0 var(--manual-red))}
@media(max-width:1180px){
  .site-header .nav-shell{padding:10px 24px;gap:6px 14px}
  .site-header .brand{margin-right:auto}
}

/* ---------- 巨型标题区 ---------- */
.opener{padding:40px 0 46px}
.kicker{display:flex;align-items:center;gap:12px;font:700 10px/1 var(--manual-mono);letter-spacing:.22em;color:var(--manual-red);margin:0 0 22px}
.kicker::before{content:"";width:30px;height:3px;background:var(--manual-red)}
.mega{font:800 clamp(42px,6.4vw,104px)/1.08 var(--manual-serif-cn);letter-spacing:-.015em;margin:0;color:var(--manual-ink)}
.mega em{font-style:normal;color:var(--manual-red);position:relative}
.mega .outline{color:var(--manual-paper);-webkit-text-stroke:2px var(--manual-ink)}
.mega .fill-red{color:var(--manual-red)}
.mega-sub{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:40px;align-items:end;margin-top:34px;padding-bottom:26px;border-bottom:2px solid var(--manual-ink)}
.mega-sub p{margin:0;max-width:600px;font-size:16.5px;line-height:1.95;color:var(--manual-ink-2)}
.readout{border:2px solid var(--manual-ink);box-shadow:6px 6px 0 var(--manual-ink)}
.readout .rt{background:var(--manual-ink);color:#FBF8F0;padding:8px 12px;font:700 9.5px/1 var(--manual-mono);letter-spacing:.16em;display:flex;justify-content:space-between}
.readout .rt em{font-style:normal;color:#68DBE9}
.readout .rows{padding:6px 12px 10px}
.readout .rw{display:grid;grid-template-columns:1fr auto;gap:12px;align-items:center;padding:9px 0;border-bottom:1px dashed rgba(26,23,20,.28)}
.readout .rw:last-child{border-bottom:0}
.readout .rw span{font:700 9.5px/1.4 var(--manual-mono);letter-spacing:.08em;color:var(--manual-ink-3)}
.readout .rw b{font:800 17px/1 var(--manual-mono);color:var(--manual-ink)}
.readout .rw b.r{color:var(--manual-red)}

/* ---------- 章节头 ---------- */
.chapter{padding:0 0 40px;border-bottom:1px solid var(--manual-ink);position:relative}
.chapter + .chapter{padding-top:44px}
.chapter + .chapter::before{content:"";position:absolute;left:0;right:0;top:-22px;height:1px;background:var(--manual-ink-4)}
.ch-head{display:grid;grid-template-columns:150px minmax(0,1fr) 250px;gap:34px;align-items:end;margin-bottom:30px}
.ch-no{position:relative}
.ch-no .big{font:800 96px/1 var(--manual-serif-la);letter-spacing:-.06em;display:block;padding-bottom:.04em;
  color:transparent;background-image:radial-gradient(circle,var(--manual-ink) 1.15px,transparent 1.3px);
  background-size:4px 4px;-webkit-background-clip:text;background-clip:text;
  filter:drop-shadow(0 0 0 var(--manual-ink))}
.ch-no .dot{display:flex;gap:4px;margin-top:14px}
.ch-no .dot i{width:13px;height:13px;background:var(--manual-ink)}
.ch-no .dot i:nth-child(4),.ch-no .dot i:nth-child(5){background:var(--manual-tint-2);box-shadow:inset 0 0 0 1px var(--manual-ink-4)}
.ch-title h2{font:800 clamp(30px,3.6vw,50px)/1.18 var(--manual-serif-cn);letter-spacing:-.01em;margin:0;color:var(--manual-ink)}
.ch-title h2 em{font-style:normal;color:var(--manual-red)}
.ch-title .lede{margin:14px 0 0;max-width:520px;font-size:15px;line-height:1.9;color:var(--manual-ink-2)}
.ch-side{border-left:2px solid var(--manual-ink);padding-left:16px}
.ch-side p{margin:0;font-size:12.5px;line-height:1.8;color:var(--manual-ink-3)}
.ch-side b{display:block;margin-top:8px;font:700 9.5px/1 var(--manual-mono);letter-spacing:.1em;color:var(--manual-red)}

/* ---------- 项目：印刷式 ---------- */
.prints{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.print{position:relative;background:var(--manual-paper);border:1px solid var(--manual-ink);box-shadow:5px 5px 0 var(--manual-tint-2);transition:transform .2s,box-shadow .2s}
.print:hover{transform:translate(-3px,-3px);box-shadow:9px 9px 0 var(--manual-ink)}
.print .tab{position:absolute;left:-1px;top:-1px;padding:6px 11px;background:var(--manual-red);color:#fff;font:800 10px/1 var(--manual-mono);letter-spacing:.1em}
.print:nth-child(2) .tab{background:var(--manual-indigo)}
.print:nth-child(3) .tab{background:var(--manual-moss)}
.print .plate{position:relative;height:180px;margin:26px 0 0;border-bottom:1px solid var(--manual-ink);overflow:hidden;background:var(--manual-tint-2)}
.print .plate img{width:100%;height:100%;object-fit:cover;image-rendering:pixelated;
  filter:grayscale(1) contrast(1.5) brightness(1.02);opacity:.62;transition:opacity .3s,filter .3s}
.print:hover .plate img{opacity:.9;filter:grayscale(.35) contrast(1.35)}
.print .plate::after{content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(circle,rgba(26,23,20,.5) .5px,transparent .6px);background-size:2.5px 2.5px;mix-blend-mode:multiply;opacity:.55}
/* Preserve the three project covers without the print texture treatment. */
@media screen {
  #projects .print .plate img:is([data-setting-image="projects.rolestage.image"], [data-setting-image="projects.twin.image"], [data-setting-image="projects.ruralmall.image"]) { filter:none; opacity:1; image-rendering:auto; }
  #projects .print .plate:has(> img:is([data-setting-image="projects.rolestage.image"], [data-setting-image="projects.twin.image"], [data-setting-image="projects.ruralmall.image"]))::after { display:none; }
}
.print .plate .cap{position:absolute;left:8px;bottom:8px;z-index:2;background:var(--manual-ink);color:#FBF8F0;padding:4px 8px;font:700 9px/1 var(--manual-mono);letter-spacing:.06em}
.print .pad{padding:20px 20px 22px}
.print h3{margin:0;font:800 27px/1.2 var(--manual-mono);letter-spacing:-.02em;color:var(--manual-ink)}
.print h3 small{display:block;margin-top:5px;font:700 13px/1.5 var(--manual-sans-cn);color:var(--manual-red)}
.print:nth-child(2) h3 small{color:var(--manual-indigo)}
.print:nth-child(3) h3 small{color:var(--manual-moss-dk)}
.print .sum{margin:13px 0 0;font-size:13.5px;line-height:1.8;color:var(--manual-ink-2)}
.spec{list-style:none;margin:16px 0 0;padding:0;border-top:1px dashed rgba(26,23,20,.34)}
.spec li{display:grid;grid-template-columns:74px minmax(0,1fr);gap:10px;padding:8px 0;border-bottom:1px dashed rgba(26,23,20,.34)}
.spec li b{font:700 9.5px/1.6 var(--manual-mono);letter-spacing:.06em;color:var(--manual-ink-3)}
.spec li span{font-size:12.5px;line-height:1.6;color:var(--manual-ink-2)}
.footnote{margin:15px 0 0;padding:9px 11px;background:var(--manual-tint);border-left:3px solid var(--manual-red);
  font-size:11.5px;line-height:1.7;color:var(--manual-ink-2)}
.footnote b{font:700 9px/1 var(--manual-mono);letter-spacing:.1em;color:var(--manual-red);display:block;margin-bottom:4px}
.print .acts{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:18px;padding-top:16px;border-top:2px solid var(--manual-ink)}
.print .acts .go{display:inline-flex;align-items:center;gap:8px;padding:11px 14px;background:var(--manual-ink);color:#FBF8F0;
  font:800 11.5px/1 var(--manual-mono);letter-spacing:.05em;text-decoration:none;box-shadow:4px 4px 0 var(--manual-red);transition:transform .15s,box-shadow .15s}
.print:hover .acts .go{transform:translate(-2px,-2px);box-shadow:6px 6px 0 var(--manual-red)}
.print .acts .rp{font:700 10px/1.4 var(--manual-mono);color:var(--manual-ink-3);text-align:right}
.print .hit{position:absolute;inset:0;z-index:5}
.print .pad{position:relative;z-index:6;pointer-events:none}
.print .pad .acts{position:relative;z-index:8;pointer-events:none}
.print .pad .acts .go{position:relative;z-index:9;pointer-events:auto}

/* ---------- 折页 ---------- */
.fold-out{position:relative;background:var(--manual-tint-2);border-top:1px solid var(--manual-ink);border-bottom:1px solid var(--manual-ink);margin:44px 0 0;
  display:grid;grid-template-columns:repeat(3,1fr);gap:0}
.fold-out > div{padding:24px 22px 26px;border-right:1px dashed rgba(26,23,20,.36);position:relative}
.fold-out > div:last-child{border-right:0}
.fold-out > div::before{content:"";position:absolute;left:22px;right:22px;top:0;height:4px;background:var(--manual-ink)}
.fold-out > div:nth-child(1)::before{background:var(--manual-red)}
.fold-out > div:nth-child(2)::before{background:var(--manual-indigo)}
.fold-out > div:nth-child(3)::before{background:var(--manual-moss)}
.fold-out h4{margin:6px 0 0;font:800 17px/1.4 var(--manual-serif-cn);color:var(--manual-ink)}
.fold-out p{margin:9px 0 0;font-size:12.5px;line-height:1.8;color:var(--manual-ink-2)}
.fold-out .fx{display:flex;gap:3px;margin-top:14px}
.fold-out .fx i{width:11px;height:11px;background:var(--manual-ink);display:block}
.fold-out .fx i:nth-child(2),.fold-out .fx i:nth-child(3){background:transparent;box-shadow:inset 0 0 0 1px var(--manual-ink-3)}

/* ---------- 开源章节 / 印章 / 日志 ---------- */
#open-source.chapter--oss{cursor:pointer;outline:none}
#open-source.chapter--oss:focus-visible{box-shadow:inset 0 0 0 2px var(--manual-indigo)}
#open-source .ch-side-link{display:block;margin-top:10px;font:700 9.5px/1.4 var(--manual-mono);letter-spacing:.08em;color:var(--manual-indigo);text-decoration:underline;text-underline-offset:3px}
#open-source.chapter--oss:hover .ch-side-link{color:var(--manual-red)}
.log{position:relative;overflow:visible;border:1px solid var(--manual-ink);box-shadow:5px 5px 0 var(--manual-tint-2);margin-top:50px}
.log-bar{display:flex;align-items:center;gap:12px;padding:11px 16px;background:var(--manual-ink);color:#FBF8F0;
  font:700 9.5px/1 var(--manual-mono);letter-spacing:.14em}
.log-bar em{font-style:normal;margin-left:auto;color:#9A9287;letter-spacing:.06em}
.log-tag{position:absolute;left:auto;right:-1px;bottom:100%;z-index:4;height:45px;padding:0 24px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--manual-red);color:#fff;border:2px solid var(--manual-ink);border-bottom:0;
  font:800 18px/1 var(--manual-sans-cn);letter-spacing:.08em;text-decoration:none;white-space:nowrap;
  transform-origin:bottom right;animation:log-tag-point 1.8s ease-in-out infinite}
.log-tag:hover{animation:none;background:#B03A22;transform:scale(1.06)}
.log-tag:active{transform:scale(.96)}
@keyframes log-tag-point{
  0%,100%{transform:scale(1)}
  50%{transform:scale(1.05)}
}
html[data-reduce-motion="1"] .log-tag{animation:none}
#open-source .log-scroll{
  --log-scroll-h:300px;
  position:relative;
  height:var(--log-scroll-h);
  max-height:var(--log-scroll-h);
  overflow:hidden;
  flex:none;
  mask-image:linear-gradient(180deg,#000 0%,#000 86%,transparent 100%);
  -webkit-mask-image:linear-gradient(180deg,#000 0%,#000 86%,transparent 100%);
}
#open-source .log-scroll.is-scrolling .log-scroll__track{will-change:transform}
#open-source .log.is-paused .log-scroll__track{transition:none}
.log-row{display:grid;grid-template-columns:66px 24px minmax(0,1fr) 104px;gap:14px;align-items:start;
  padding:16px 16px;border-bottom:1px solid rgba(26,23,20,.24);text-decoration:none;transition:background .16s}
.log-row:last-child{border-bottom:0}
.log-row:hover{background:var(--manual-tint)}
.log-h{font:700 10.5px/1.7 var(--manual-mono);color:var(--manual-ink-3)}
.log-t{width:22px;height:22px}
.log-t path{fill:none;stroke:var(--manual-moss-dk);stroke-width:2.6;stroke-linecap:square;stroke-dasharray:26;stroke-dashoffset:26}
.inview .log-t path{animation:draw .5s .1s forwards}
@keyframes draw{to{stroke-dashoffset:0}}
.log-m{min-width:0}
.log-m small{display:block;font:700 9.5px/1.6 var(--manual-mono);letter-spacing:.1em;color:var(--manual-indigo)}
.log-m strong{display:block;font-size:16px;line-height:1.5;color:var(--manual-ink);font-weight:700}
.log-m p{margin:5px 0 0;font-size:12.5px;line-height:1.7;color:var(--manual-ink-2)}
.log-r{text-align:right}
.log-r b{font:800 12px/1.4 var(--manual-mono);color:var(--manual-red)}
.stamp{display:inline-flex;align-items:center;gap:6px;margin-top:7px;padding:4px 9px;
  border:2px solid var(--manual-moss-dk);color:var(--manual-moss-dk);font:800 9px/1 var(--manual-mono);letter-spacing:.1em;
  transform:rotate(-4deg);opacity:.88}

/* ---------- 双栏紧凑区 ---------- */
.two{display:grid;grid-template-columns:1fr 1fr;gap:26px;padding:36px 0 44px;border-bottom:1px solid var(--manual-ink)}
.panel-t{font:800 15px/1.4 var(--manual-serif-cn);color:var(--manual-ink);margin:0 0 4px;display:flex;align-items:center;gap:9px}
.panel-t i{width:10px;height:10px;background:var(--manual-ink);display:block;flex:none}
.tl{margin:16px 0 0;padding:0;list-style:none;border-left:2px solid var(--manual-ink);padding-left:18px}
.tl li{position:relative;padding:0 0 20px}
.tl li:last-child{padding-bottom:0}
.tl li::before{content:"";position:absolute;left:-5px;top:6px;width:8px;height:8px;background:var(--manual-red)}
.tl time{font:700 10px/1.6 var(--manual-mono);letter-spacing:.06em;color:var(--manual-ink-3)}
.tl h5{margin:5px 0 4px;font:700 16px/1.5 var(--manual-sans-cn);color:var(--manual-ink)}
.tl p{margin:0;font-size:12.5px;line-height:1.8;color:var(--manual-ink-2)}
.keyvals{display:grid;gap:0;margin-top:16px;border-top:1px solid var(--manual-ink)}
.kv{display:grid;grid-template-columns:96px minmax(0,1fr);gap:12px;padding:11px 0;border-bottom:1px dashed rgba(26,23,20,.3)}
.kv b{font:700 9.5px/1.7 var(--manual-mono);letter-spacing:.04em;color:var(--manual-red)}
.kv span{font-size:12.5px;line-height:1.7;color:var(--manual-ink-2)}
.method-checks{display:grid;grid-template-columns:1.1fr repeat(3,minmax(0,1fr));margin-top:24px;border:1px solid var(--manual-ink);background:var(--manual-tint)}
.method-checks__head,.method-check{min-height:64px;padding:12px 14px;display:flex;flex-direction:column;justify-content:center;gap:3px;border-right:1px solid rgba(26,23,20,.22)}
.method-checks__head{background:var(--manual-ink);color:var(--manual-paper)}
.method-checks__head b,.method-check b{font:800 11px/1.5 var(--manual-sans-cn)}
.method-checks__head span{font:700 8.5px/1.4 var(--manual-mono);letter-spacing:.12em;color:#68DBE9}
.method-check b{color:var(--manual-red)}
.method-check span{font-size:10.5px;line-height:1.6;color:var(--manual-ink-2)}
.method-check:last-child{border-right:0}
.note-inline{margin:18px 0 0;padding:10px 12px;background:var(--manual-tint);border-left:3px solid var(--manual-ink-4);
  font-size:11.5px;line-height:1.75;color:var(--manual-ink-3)}
.note-inline b{font:700 9px/1 var(--manual-mono);letter-spacing:.1em;color:var(--manual-ink-3);display:block;margin-bottom:4px}

/* ---------- 联系 ---------- */
.finale{position:relative;padding:52px 0 56px}
.finale h2{margin:0;font:800 clamp(34px,4.6vw,64px)/1.14 var(--manual-serif-cn);letter-spacing:-.01em;color:var(--manual-ink)}
.finale h2 em{font-style:normal;color:var(--manual-red)}
.finale .lead{margin:18px 0 0;max-width:560px;font-size:16px;line-height:1.9;color:var(--manual-ink-2)}
.cta-row{display:flex;gap:16px;margin-top:32px;flex-wrap:wrap}
.cta{display:inline-flex;align-items:center;gap:10px;padding:16px 26px;border:2px solid var(--manual-ink);box-shadow:6px 6px 0 var(--manual-ink);
  font:800 13px/1 var(--manual-mono);letter-spacing:.04em;text-decoration:none;transition:transform .15s,box-shadow .15s}
.cta.p{background:var(--manual-red);color:#fff;border-color:var(--manual-ink);box-shadow:6px 6px 0 var(--manual-ink)}
.cta.p:hover{background:#B03A22}
.cta.s{background:var(--manual-paper)}
.cta:hover{transform:translate(-3px,-3px);box-shadow:9px 9px 0 var(--manual-ink)}
.contact-table{margin-top:40px;border:2px solid var(--manual-ink);box-shadow:6px 6px 0 var(--manual-ink)}
.contact-table .ct{background:var(--manual-ink);color:#FBF8F0;padding:9px 14px;font:700 9.5px/1 var(--manual-mono);letter-spacing:.16em;display:flex;justify-content:space-between}
.contact-table .cr{display:grid;grid-template-columns:110px minmax(0,1fr);gap:14px;padding:15px 14px;border-bottom:1px solid rgba(26,23,20,.24);align-items:center}
.contact-table .cr:last-child{border-bottom:0}
.contact-table dt{font:700 9.5px/1 var(--manual-mono);letter-spacing:.1em;color:var(--manual-ink-3)}
.contact-table dd{margin:0;font-size:15px;font-weight:700;color:var(--manual-ink);overflow-wrap:anywhere}
.contact-table dd a{text-decoration:none;border-bottom:1px solid var(--manual-red)}
.contact-table dd a:hover{color:var(--manual-red)}
.contact-table .cr small{display:block;margin-top:4px;font-size:11px;font-weight:400;color:var(--manual-ink-3)}

/* ---------- 页脚 ---------- */
.colophon{position:relative;background:var(--manual-ink);color:#FBF8F0;padding:34px 0 30px;margin-top:20px}
.colophon-in{max-width:1320px;margin:0 auto;padding:0 40px;display:grid;grid-template-columns:1fr auto;gap:24px;align-items:end}
.colophon b{font:800 20px/1.3 var(--manual-serif-cn);display:block}
.colophon p{margin:8px 0 0;font-size:12.5px;color:#9A9287;max-width:420px}
.colophon nav{display:flex;gap:20px;flex-wrap:wrap}
.colophon nav a{color:#C9C1B4;text-decoration:none;font:700 10px/1 var(--manual-mono);letter-spacing:.1em}
.colophon nav a:hover{color:#fff}
.colophon .end{grid-column:1/-1;margin-top:22px;padding-top:16px;border-top:1px solid #2E2A24;
  font:700 9.5px/1 var(--manual-mono);letter-spacing:.12em;color:var(--manual-ink-4);display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}

/* ---------- 入场：墨水渗染 ---------- */
.rise{transition:opacity .7s ease,transform .7s cubic-bezier(.2,.8,.2,1)}
.paper-world.js .rise{opacity:0;transform:translateY(18px)}
.paper-world.js .rise.inview,.paper-world.js .inview .rise{opacity:1;transform:none}
.rise.d1{transition-delay:.08s}.rise.d2{transition-delay:.16s}.rise.d3{transition-delay:.24s}.rise.d4{transition-delay:.32s}
.bleed{transition:clip-path .8s cubic-bezier(.2,.8,.2,1)}
.paper-world.js .bleed{clip-path:inset(0 0 100% 0)}
.paper-world.js .bleed.inview,.paper-world.js .inview .bleed{clip-path:inset(0 0 0 0)}
.bleed.d1{transition-delay:.1s}.bleed.d2{transition-delay:.2s}.bleed.d3{transition-delay:.3s}

/* ---------- 响应式 ---------- */
@media(max-width:1180px){
  .slab{flex-direction:column}
  .marginalia{position:sticky;top:var(--portfolio-header-height, 74px);z-index:28;width:100%;min-height:0;height:auto;
    flex-direction:row;align-items:stretch;padding:0;border-right:0;border-bottom:2px solid var(--manual-ink);
    background:var(--manual-paper);box-shadow:0 4px 0 var(--manual-red);align-self:stretch}
  .marginalia .holes,.marginalia .mtag{display:none}
  .marginalia .mnav{position:static;margin:0;flex:1;min-width:0;overflow-x:auto;scrollbar-width:thin;
    display:flex;align-items:stretch;background:var(--manual-paper)}
  .marginalia .mnav::before{content:"INDEX";flex:none;display:flex;align-items:center;justify-content:center;
    padding:0 12px;background:var(--manual-ink);color:var(--manual-paper);position:sticky;left:0;z-index:2;
    font:800 10px/1 var(--manual-mono);letter-spacing:.16em;border-right:2px solid var(--manual-ink)}
  .marginalia .mlist{display:flex;gap:0;min-width:max-content;padding:6px 8px}
  .marginalia .mlist li{display:flex;align-items:center;position:relative}
  .marginalia .mlist li + li::before{content:"";width:1px;height:18px;margin:0 2px;background:var(--manual-ink);opacity:.28;flex:none}
  .marginalia .mlist a{padding:7px 12px;white-space:nowrap;border:1px solid transparent;box-shadow:none;background:transparent}
  .marginalia .mlist a::before{display:none}
  .marginalia .mlist a:hover{background:var(--manual-tint);border-color:var(--manual-ink);box-shadow:2px 2px 0 var(--manual-ink);transform:none}
  .marginalia .mlist a.on{padding:7px 12px;background:var(--manual-red);color:#fff;border:2px solid var(--manual-ink);
    box-shadow:3px 3px 0 var(--manual-ink);transform:none}
  .marginalia .mlist span{display:none}
  .body-col{padding:34px 24px 0}
  .page{padding:0 24px}
  .draft-note{padding:12px 24px}
  .ch-head{grid-template-columns:110px minmax(0,1fr);gap:24px}
  .ch-side{display:none}
  .prints{grid-template-columns:1fr 1fr}
  .mega-sub{grid-template-columns:1fr;gap:24px}
}
@media(max-width:820px){
  .index-bar a{min-width:104px;padding:11px 12px}
  .prints{grid-template-columns:1fr}
  .two{grid-template-columns:1fr;gap:0}
  .fold-out{grid-template-columns:1fr}
  .fold-out > div{border-right:0;border-bottom:1px dashed rgba(26,23,20,.36)}
  .ch-no .big{font-size:64px}
  .log-bar em{display:none}
  #open-source .log-scroll{--log-scroll-h:min(260px,34vh)}
  .log-row{grid-template-columns:24px minmax(0,1fr);gap:10px 12px}
  .log-h{grid-column:2}
  .log-r{grid-column:2;display:flex;align-items:center;gap:10px;text-align:left}
  .colophon-in{grid-template-columns:1fr;padding:0 24px}
}
@media(max-width:560px){
  .page{padding:0 16px}
  .body-col{padding:28px 16px 0}
  .draft-note{padding:12px 16px;gap:10px}
  .draft-note .lock{margin-left:0}
  .ch-head{grid-template-columns:1fr;gap:14px}
  .method-checks{grid-template-columns:1fr 1fr}
  .method-checks__head,.method-check{min-height:58px}
  .method-check:nth-child(3){border-right:0}
  .cta{width:100%;justify-content:center}
  .contact-table .cr{grid-template-columns:1fr;gap:5px}
  .spec li{grid-template-columns:1fr;gap:2px}
}
@media(max-width:560px){.site-header .nav-shell{padding:8px 14px}.site-header .nav-tools{gap:5px}}
html[data-reduce-motion="1"]{scroll-behavior:auto}
html[data-reduce-motion="1"] *,html[data-reduce-motion="1"] *::before,html[data-reduce-motion="1"] *::after{animation:none!important;transition:none!important}
html[data-reduce-motion="1"] .rise,html[data-reduce-motion="1"] .bleed{opacity:1;transform:none;clip-path:none}
html[data-reduce-motion="1"] #open-source .log-scroll{overflow-y:auto;-webkit-mask-image:none;mask-image:none}
@media print{
  @page{margin:14mm}
  html{scroll-behavior:auto}
  .skip-link,.pixel-scene,.site-header,.hero,.index-bar,.to-top{display:none!important}
  .paper-world{background:#fff;color:#111}
  .paper-world.js .rise,.paper-world.js .bleed,.paper-world.js .rise.inview,.paper-world.js .bleed.inview,.paper-world.js .inview .rise,.paper-world.js .inview .bleed{opacity:1!important;transform:none!important;clip-path:none!important}
  .page{padding:0;background:#fff}
  .page::before,.page::after,.grain{display:none}
  .slab{max-width:none}
  .marginalia{position:static;display:block;max-height:none;width:170px;padding:18px 12px;background:#f4f0e6}
  .body-col{padding:0 0 0 22px}
  .opener{padding:0 0 24px}
  .chapter{break-inside:auto;padding-bottom:24px}
  .ch-head,.print,.fold-out,.log,.two,.finale,.contact-table{break-inside:avoid}
  .ch-head{break-after:avoid}
  .chapter+.chapter{padding-top:24px}
  .method-checks{break-inside:avoid}
  .print,.log,.contact-table{box-shadow:none}
  .print:hover{transform:none;box-shadow:none}
  .print .plate img{filter:grayscale(1);opacity:1}
  .colophon{background:#fff;color:#111;border-top:2px solid #111;padding:16px 0}
  .colophon p,.colophon nav a,.colophon .end{color:#333}
  .colophon-in{padding:0;max-width:none}
  a{text-decoration:none}
}

.experience-body,.skills-body{padding:30px 0 34px;max-width:760px}
.skills-body .keyvals{display:grid;gap:8px}
@media(max-width:560px){.experience-body,.skills-body{padding:22px 0}}

/* Verified collaboration and event records */
.cooperation{margin-top:32px;padding:22px;border:1px solid var(--manual-ink);background:var(--manual-paper-2);box-shadow:5px 5px 0 var(--manual-ink)}
.cooperation-head{display:flex;align-items:baseline;justify-content:space-between;gap:14px;flex-wrap:wrap;margin-bottom:18px}
.cooperation-head h3{font:800 23px/1.3 var(--manual-serif-cn);margin:0}
.cooperation-head p{font-size:13px;margin:0;color:var(--manual-ink-2)}
.cooperation-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.cooperation-grid article{padding-top:14px;border-top:1px dashed var(--manual-ink-3);min-width:0}
.cooperation-grid h4{font-size:16px;margin:0 0 10px}
.cooperation-grid p,.event-copy{font-size:14px;line-height:1.85;color:var(--manual-ink-2)}
.cooperation a,.event-copy a{color:var(--manual-indigo);text-underline-offset:4px}
.cooperation-grid a{display:inline-block;margin:6px 15px 0 0;font-size:12px;font-weight:700}
.event-title{margin-top:32px}
.event-copy{margin:14px 0 0}
@media(max-width:560px){.cooperation{padding:18px}.cooperation-grid{grid-template-columns:1fr}}
@media(max-width:640px){
  .hero:not(.detail-hero){padding-bottom:156px}
  .cooperation{scroll-margin-top:56px}
}