/* ============================================================
   0F4C81 · xry 工作站 — V2 纸上档案
   手帐材质（纸纹/撕边/胶带/印章/手写批注）× 克制高级动效
   单色系：纸面 + 墨色 + #0F4C81
   ============================================================ */

:root{
  --paper:#f6f1e7;
  --paper-2:#efe8d9;
  --mat:#e8e0cd;
  --ink:#0e1c2b;
  --ink-2:#3d4f61;
  --ink-3:#7e8b98;
  --blue:#0f4c81;
  --blue-soft:color-mix(in srgb,var(--blue) 12%,var(--paper));
  --line:#d9d0bd;
  --line-soft:#e5ddcb;
  --serif:"Songti SC","STSong","Noto Serif CJK SC","Source Han Serif SC","SimSun",serif;
  --sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --mono:"SF Mono","Menlo","Consolas","Courier New",monospace;
  --hand-en:"Caveat",cursive;
  --hand-zh:"Kaiti SC","STKaiti","KaiTi","楷体",serif;
  --ease:cubic-bezier(0.22,1,0.36,1);
  --shell:1180px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--mat);
  color:var(--ink);
  font-family:var(--sans);
  font-size:15px;line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
::selection{background:var(--blue);color:var(--paper)}
a{color:inherit;text-decoration:none}

/* ── 画框：整页四边留白 ── */
.sheet{
  position:relative;
  background:var(--paper);
  border:1px solid var(--line);
  margin:clamp(14px,2.6vw,40px);
  min-height:calc(100vh - clamp(14px,2.6vw,40px) * 2);
  display:flex;flex-direction:column;
  overflow:hidden;
  box-shadow:0 1px 2px rgba(44,36,22,.05),0 18px 48px -18px rgba(44,36,22,.18);
  animation:sheetIn .7s var(--ease) both;
}
@keyframes sheetIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
.sheet > main{flex:1;display:flex;flex-direction:column}

/* ── 纸纹颗粒（feTurbulence，全页覆盖） ── */
.grain{
  position:fixed;inset:0;z-index:60;pointer-events:none;
  mix-blend-mode:multiply;opacity:.5;
}

/* ── 壳 ── */
.shell{width:100%;max-width:var(--shell);margin:0 auto;padding:0 clamp(26px,5vw,72px)}
@media(max-width:640px){.shell{padding:0 20px}}

/* ── 顶栏 ── */
.masthead{
  position:sticky;top:0;z-index:50;
  background:color-mix(in srgb,var(--paper) 90%,transparent);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.masthead-in{
  max-width:var(--shell);margin:0 auto;padding:0 clamp(26px,5vw,72px);
  height:58px;display:flex;align-items:center;gap:28px;
}
@media(max-width:640px){.masthead-in{padding:0 20px;gap:16px}}
.wordmark{display:flex;align-items:baseline;gap:10px;flex:0 0 auto}
.wordmark b{
  font-family:var(--mono);font-size:15px;font-weight:700;
  letter-spacing:.06em;color:var(--blue);
}
.wordmark b sup{font-size:8px}
.wordmark span{
  font-family:var(--mono);font-size:10px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--ink-3);
}
@media(max-width:760px){.wordmark span{display:none}}
.mastnav{display:flex;gap:22px;margin-left:auto}
.mastnav a{
  position:relative;font-family:var(--mono);font-size:11px;
  letter-spacing:.12em;text-transform:uppercase;color:var(--ink-2);
  padding:4px 0;
}
.mastnav a small{
  font-family:var(--sans);font-size:10px;letter-spacing:.2em;
  color:var(--ink-3);margin-left:5px;
}
.mastnav a::after{
  content:"";position:absolute;left:-2%;bottom:0;height:2px;width:0;
  background:var(--blue);opacity:.75;border-radius:2px;
  transition:width .28s var(--ease);
}
.mastnav a:hover{color:var(--blue)}
.mastnav a:hover small{color:var(--blue)}
.mastnav a:hover::after{width:104%}
@media(max-width:760px){.mastnav{display:none}}
.mast-status{
  display:flex;align-items:center;gap:8px;flex:0 0 auto;
  font-family:var(--mono);font-size:10px;letter-spacing:.1em;
  color:var(--ink-2);border:1px solid var(--line);
  padding:5px 10px;border-radius:999px;background:rgba(255,255,255,.4);
}
.mast-status .dot{width:7px;height:7px;border-radius:50%;background:var(--blue);animation:pulse 2.4s var(--ease) infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.25}}
@media(max-width:480px){.mast-status .clock{display:none}}

/* ── 手写批注 ── */
.note-en{font-family:var(--hand-en);font-weight:500;color:var(--blue);font-size:22px;line-height:1.2}
.note-zh{font-family:var(--hand-zh);color:var(--blue);font-size:15px;line-height:1.5}
.note-tilt{display:inline-block;transform:rotate(-2deg)}

/* ── 胶带 ── */
.tape{
  position:absolute;width:118px;height:30px;
  background:
    repeating-linear-gradient(115deg,rgba(255,255,255,.14) 0 6px,transparent 6px 12px),
    linear-gradient(180deg,rgba(15,76,129,.16),rgba(15,76,129,.24));
  backdrop-filter:blur(1px);
  box-shadow:0 1px 3px rgba(44,36,22,.12);
  clip-path:polygon(2% 8%,98% 0%,100% 88%,0% 100%);
  opacity:.9;z-index:3;
}
.tape.tl{top:-13px;left:34px;transform:rotate(-5deg)}
.tape.tr{top:-13px;right:44px;transform:rotate(4deg)}

/* ── 色号标本 ── */
.specimen-wrap{padding-top:clamp(52px,9vh,110px)}
.specimen{
  position:relative;
  border:1px solid var(--line);
  background:
    repeating-linear-gradient(180deg,transparent 0 31px,var(--line-soft) 31px 32px),
    var(--paper-2);
}
.specimen-in{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);min-height:300px}
.specimen-chip{
  background:var(--blue);
  position:relative;overflow:hidden;
  display:flex;align-items:flex-end;padding:22px;
}
.specimen-chip::after{
  content:"0F4C81";
  position:absolute;right:-.06em;bottom:-.28em;
  font-family:var(--mono);font-weight:700;
  font-size:clamp(90px,11vw,150px);letter-spacing:-.04em;
  color:rgba(246,241,231,.14);pointer-events:none;
}
.specimen-chip > span{
  font-family:var(--mono);font-size:10px;letter-spacing:.2em;
  text-transform:uppercase;color:rgba(246,241,231,.85);
  border:1px solid rgba(246,241,231,.4);padding:4px 9px;border-radius:999px;
}
.specimen-doc{
  padding:44px 44px 40px;display:flex;flex-direction:column;
  justify-content:center;gap:16px;position:relative;
}
.specimen-doc h2{
  font-family:var(--mono);font-size:11px;letter-spacing:.22em;
  text-transform:uppercase;color:var(--blue);font-weight:700;
}
.specimen-doc .big{
  font-family:var(--serif);font-size:clamp(24px,3vw,34px);
  font-weight:700;line-height:1.3;
}
.specimen-doc .big b{color:var(--blue)}
.specimen-facts{
  display:flex;flex-wrap:wrap;gap:8px 26px;margin-top:2px;
  font-family:var(--mono);font-size:10.5px;letter-spacing:.08em;color:var(--ink-3);
}
.specimen-facts b{color:var(--ink);font-weight:600}
.specimen-note{position:absolute;right:36px;bottom:26px;transform:rotate(-3deg)}
@media(max-width:820px){
  .specimen-in{grid-template-columns:1fr}
  .specimen-chip{min-height:180px}
  .specimen-note{position:static;margin-top:8px}
}

/* ── 印章 ── */
.stamp{
  position:absolute;top:26px;right:30px;width:104px;height:104px;
  transform:rotate(11deg);opacity:.85;pointer-events:none;
  mix-blend-mode:multiply;
}
@media(max-width:820px){.stamp{width:84px;height:84px;top:18px;right:18px}}

/* ── 撕边分隔 ── */
.torn{display:block;width:100%;height:34px;margin-top:clamp(44px,7vh,84px);color:var(--paper)}
.torn svg{display:block;width:100%;height:100%}

/* ── 目录 ── */
.index-sec{padding:clamp(40px,6vh,72px) 0 40px;position:relative}
.index-head{display:flex;align-items:baseline;justify-content:space-between;gap:20px;margin-bottom:34px;position:relative}
.index-head h1{
  font-family:var(--serif);font-size:clamp(28px,3.6vw,42px);
  font-weight:700;line-height:1.2;position:relative;display:inline-block;
}
.index-head h1 small{
  display:block;font-family:var(--mono);font-size:11px;font-weight:400;
  letter-spacing:.22em;text-transform:uppercase;color:var(--ink-3);margin-bottom:10px;
}
.index-note{position:absolute;left:min(430px,46%);top:-6px;transform:rotate(-2.5deg);white-space:nowrap}
@media(max-width:900px){.index-note{display:none}}

.group{margin-bottom:44px}
.group-head{
  display:flex;flex-wrap:wrap;align-items:baseline;gap:6px 16px;
  padding-bottom:10px;margin-bottom:2px;
  border-bottom:1px solid var(--ink);
}
.group-head .g-no{font-family:var(--mono);font-size:11px;letter-spacing:.1em;color:var(--blue);font-weight:700}
.group-head h3{font-family:var(--serif);font-size:21px;font-weight:700;white-space:nowrap}
.group-head .g-en{font-family:var(--mono);font-size:10px;letter-spacing:.2em;text-transform:uppercase;color:var(--ink-3);white-space:nowrap}
.group-head .g-count{margin-left:auto;font-family:var(--mono);font-size:10px;letter-spacing:.14em;color:var(--ink-3);white-space:nowrap}
.group-head .g-desc{flex-basis:100%;font-size:12.5px;color:var(--ink-3);margin-top:2px}

/* 目录行：荧光笔扫过 + 纸张浮起 */
.entry{
  display:grid;
  grid-template-columns:52px minmax(0,15fr) minmax(0,17fr) 108px 30px;
  align-items:center;gap:18px;
  padding:17px 14px 17px 4px;
  border-bottom:1px solid var(--line-soft);
  position:relative;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease);
}
.entry::before{
  content:"";position:absolute;inset:2px -6px;z-index:0;
  background:var(--blue);
  clip-path:polygon(.5% 6%,99.5% 0%,100% 94%,0% 100%);
  transform:scaleX(0);transform-origin:left center;
  transition:transform .32s var(--ease);
}
.entry:hover::before{transform:scaleX(1)}
.entry:hover{
  transform:translateY(-2px) rotate(-.25deg);
  box-shadow:0 10px 22px -10px rgba(14,28,43,.35);
  z-index:2;
}
.entry > *{position:relative;z-index:1}
.entry .no{font-family:var(--mono);font-size:11px;letter-spacing:.06em;color:var(--blue);font-weight:700;transition:color .24s var(--ease)}
.entry .name{display:flex;flex-direction:column;gap:1px;min-width:0}
.entry .name b{font-family:var(--serif);font-size:17.5px;font-weight:700;line-height:1.3;transition:color .24s var(--ease)}
.entry .name small{font-family:var(--mono);font-size:9.5px;letter-spacing:.18em;text-transform:uppercase;color:var(--ink-3);transition:color .24s var(--ease)}
.entry .desc{
  font-size:12.5px;line-height:1.6;color:var(--ink-3);
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
  transition:color .24s var(--ease);
}
.entry .status{
  font-family:var(--mono);font-size:9.5px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--ink-2);
  display:flex;align-items:center;gap:7px;transition:color .24s var(--ease);
}
.entry .status i{width:6px;height:6px;border-radius:50%;background:var(--blue);flex:0 0 auto;transition:background .24s var(--ease)}
.entry .status.st-auth i{background:transparent;border:1.5px solid var(--ink-3)}
.entry .status.st-lab i{border-radius:0}
.entry .status.st-report i{border-radius:0;transform:rotate(45deg)}
.entry .status.st-upgrading i{background:transparent;border:1.5px solid var(--blue)}
.entry .arrow{font-family:var(--mono);font-size:14px;color:var(--ink-3);transition:transform .26s var(--ease),color .24s var(--ease)}
.entry:hover .no{color:rgba(246,241,231,.75)}
.entry:hover .name b{color:var(--paper)}
.entry:hover .name small{color:rgba(246,241,231,.6)}
.entry:hover .desc{color:rgba(246,241,231,.72)}
.entry:hover .status{color:rgba(246,241,231,.9)}
.entry:hover .status i{background:var(--paper)!important;border-color:transparent!important}
.entry:hover .arrow{color:var(--paper);transform:translateX(5px)}
.entry:focus-visible{outline:2px solid var(--blue);outline-offset:-2px}

@media(max-width:860px){
  .entry{grid-template-columns:40px minmax(0,1fr) 86px 22px;gap:12px;padding:15px 8px 15px 2px}
  .entry .desc{display:none}
}
@media(max-width:480px){
  .entry{grid-template-columns:30px minmax(0,1fr) 22px}
  .entry .status{display:none}
}

/* ── 站台信号 ── */
.feed{margin-top:72px;position:relative}
.feed-note{position:absolute;top:-34px;right:8px;transform:rotate(2deg)}
.feed-in{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);background:rgba(255,255,255,.28)}
.feed-cell{padding:26px 22px;border-left:1px solid var(--line-soft)}
.feed-cell:first-child{border-left:none}
.feed-cell h4{
  font-family:var(--mono);font-size:10px;letter-spacing:.2em;
  text-transform:uppercase;color:var(--ink-3);font-weight:400;margin-bottom:8px;
}
.feed-cell b{font-family:var(--mono);font-size:16px;font-weight:700;color:var(--ink);letter-spacing:.02em}
.feed-cell p{font-size:12px;color:var(--ink-3);margin-top:4px;line-height:1.5}
@media(max-width:820px){
  .feed-in{grid-template-columns:repeat(2,1fr)}
  .feed-cell:nth-child(3){border-left:none}
  .feed-cell:nth-child(n+3){border-top:1px solid var(--line-soft)}
  .feed-cell{padding:20px 16px}
  .feed-cell b{font-size:13.5px;letter-spacing:0}
}

/* ── 页脚字标 ── */
.colophon{margin-top:auto;padding-top:96px;overflow:hidden;position:relative}
.colophon .mark{
  font-family:var(--mono);font-weight:700;
  font-size:clamp(76px,16.5vw,228px);
  line-height:.96;letter-spacing:-.045em;
  white-space:nowrap;padding:34px 0 10px;
  user-select:none;
  color:transparent;
  background:linear-gradient(180deg,var(--blue) 62%,color-mix(in srgb,var(--blue) 55%,var(--paper)) 100%);
  -webkit-background-clip:text;background-clip:text;
}
.colophon .mark span{display:inline-block}
.colophon .base{
  display:flex;flex-wrap:wrap;gap:10px 30px;justify-content:space-between;
  padding:18px 0 44px;border-top:1px solid var(--line);
  font-family:var(--mono);font-size:10px;letter-spacing:.16em;
  text-transform:uppercase;color:var(--ink-3);
}

/* ── 自定义墨迹光标（仅桌面精确指针） ── */
.cursor-dot,.cursor-ring{
  position:fixed;top:0;left:0;z-index:200;pointer-events:none;
  border-radius:50%;transform:translate(-50%,-50%);
}
.cursor-dot{width:6px;height:6px;background:var(--blue)}
.cursor-ring{
  width:26px;height:26px;border:1.5px solid color-mix(in srgb,var(--blue) 55%,transparent);
  transition:width .22s var(--ease),height .22s var(--ease),border-color .22s var(--ease);
}
body.cursor-on,body.cursor-on a,body.cursor-on button{cursor:none}
body.cursor-hover .cursor-ring{width:44px;height:44px;border-color:var(--blue)}
@media(pointer:coarse){.cursor-dot,.cursor-ring{display:none}}

/* ── 手绘圈注 ── */
.scrawl{position:absolute;inset:-6px -10px;pointer-events:none;overflow:visible;z-index:2}
.scrawl path{fill:none;stroke:var(--blue);stroke-width:2;stroke-linecap:round;opacity:.85}

/* ── 入场 ── */
.rise{opacity:0;transform:translateY(14px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.rise.in{opacity:1;transform:none}

@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .sheet{animation:none}
  .rise{opacity:1;transform:none;transition:none}
  .mast-status .dot{animation:none}
  .entry,.entry::before,.entry *,.mastnav a::after{transition:none!important}
  .cursor-dot,.cursor-ring{display:none}
  .grain{display:none}
}