/* ============================================================
   陳奕安 個人網站　學術專業版
   底　#F7F8FA 微冷灰白　面　#FFFFFF
   墨　#1B1E24（15.7:1）　重點　牛津藍 #0F2D52（13.0:1）
   內文襯線、標籤無襯線、數據等寬
   ============================================================ */

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0}

:root{
  color-scheme:light;
  --ground:#F7F8FA;
  --surface:#FFFFFF;
  --tint:#EEF1F6;
  --ink-1:#1B1E24;
  --ink-2:#474C55;
  --ink-muted:#696E77;
  --accent:#0F2D52;
  --accent-soft:#E8ECF3;
  --rule:#DCDEE3;
  --rule-soft:#E8EAEE;

  --mark:#5A616B;
  --mark-dim:#8A9099;
  --series-1:#0F2D52;
  --series-2:#3F6795;
  --series-3:#8AA6C8;
  --grid:#EAECF0;
  --axis:#CDD1D8;

  --f-serif:"Source Serif 4","Charter","Iowan Old Style","Songti TC","Noto Serif CJK TC","Source Han Serif TC",Georgia,serif;
  --f-sans:"Helvetica Neue","PingFang TC","Noto Sans CJK TC","Microsoft JhengHei",ui-sans-serif,-apple-system,sans-serif;
  --f-mono:ui-monospace,"SF Mono","IBM Plex Mono",Menlo,monospace;

  --pad:clamp(1.15rem,5vw,4rem);
  --maxw:1080px;
}

body{
  background:var(--ground);color:var(--ink-1);font-family:var(--f-serif);
  font-size:clamp(.95rem,.24vw + .9rem,1.02rem);line-height:1.92;letter-spacing:.005em;
  overflow-x:hidden;display:flex;flex-direction:column;min-height:100vh;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
::selection{background:var(--accent-soft);color:var(--accent)}
main{flex:1 0 auto}
.wrap{max-width:var(--maxw);margin:0 auto;padding-inline:var(--pad);width:100%}
.sans{font-family:var(--f-sans)}
.mono{font-family:var(--f-mono)}

/* ---------- 導覽 ---------- */
nav{position:sticky;top:0;z-index:60;background:color-mix(in srgb,var(--ground) 94%,transparent);
    backdrop-filter:blur(10px);border-bottom:1px solid var(--rule)}
.nav-in{max-width:var(--maxw);margin:0 auto;padding:.85rem var(--pad);display:flex;align-items:center;gap:1.2rem}
.nav-mark{font-family:var(--f-sans);font-size:.85rem;font-weight:600;letter-spacing:.03em;margin-right:auto;
          white-space:nowrap;color:var(--ink-1);display:flex;align-items:baseline;gap:.5rem}
.nav-mark span{font-family:var(--f-mono);font-size:.66rem;font-weight:400;letter-spacing:.18em;color:var(--ink-muted)}
.nav-links{display:flex;gap:1.5rem;font-family:var(--f-sans);font-size:.78rem;letter-spacing:.04em}
.nav-links a{position:relative;padding-block:.35rem;color:var(--ink-2);transition:color .25s;white-space:nowrap}
.nav-links a::after{content:"";position:absolute;left:0;right:100%;bottom:0;height:2px;background:var(--accent);transition:right .3s}
.nav-links a:hover{color:var(--accent)}
.nav-links a:hover::after,.nav-links a[aria-current="page"]::after{right:0}
.nav-links a[aria-current="page"]{color:var(--accent);font-weight:600}
.icon-btn{border:1px solid var(--rule);background:var(--surface);color:var(--ink-2);width:30px;height:30px;
          cursor:pointer;font-size:.9rem;display:grid;place-items:center;transition:all .25s;flex:none}
.icon-btn:hover{color:var(--accent);border-color:var(--accent)}
.burger{display:none}
@media (max-width:860px){
  .nav-links{position:absolute;top:100%;left:0;right:0;flex-direction:column;gap:0;background:var(--surface);
             border-bottom:1px solid var(--rule);max-height:0;overflow:hidden;transition:max-height .32s ease}
  .nav-links.open{max-height:460px}
  .nav-links a{padding:.85rem var(--pad);border-top:1px solid var(--rule-soft);font-size:.85rem}
  .nav-links a::after{display:none}
  .burger{display:grid}
}

/* ---------- 教職員頁式抬頭 ---------- */
.fac{display:grid;grid-template-columns:clamp(128px,17vw,176px) 1fr;gap:clamp(1.4rem,4vw,2.6rem);align-items:start;
     padding:clamp(2rem,5vh,3.2rem) 0 1.7rem;border-bottom:2px solid var(--accent)}
.fac-photo{margin:0}
/* height:auto 不可省。img 上的 height 屬性會被當成呈現提示，
   高度一旦是定值就會壓過 aspect-ratio，圖片會被拉成直條。 */
.fac-photo img{width:100%;height:auto;aspect-ratio:3/4;object-fit:cover;object-position:50% 18%;
               border:1px solid var(--rule);background:var(--surface)}
.fac h1{margin:0;font-size:clamp(1.65rem,4vw,2.25rem);font-weight:600;letter-spacing:.02em;line-height:1.3}
.fac .en{font-family:var(--f-mono);font-size:.72rem;letter-spacing:.24em;color:var(--ink-muted);margin-top:.55rem}
.fac .aff{font-size:.92rem;color:var(--ink-2);margin-top:1.1rem;line-height:1.95}
.fac .aff b{color:var(--accent);font-weight:600}
.fac .meta{font-family:var(--f-sans);font-size:.76rem;color:var(--ink-muted);margin-top:.85rem;line-height:1.95}
.fac .meta a{border-bottom:1px solid var(--rule);transition:border-color .25s,color .25s}
.fac .meta a:hover{color:var(--accent);border-color:var(--accent)}
@media (max-width:620px){.fac{grid-template-columns:112px 1fr;gap:1.1rem}}

/* ---------- 一般頁首 ---------- */
.page-head{padding:clamp(2.4rem,6vh,3.6rem) 0 clamp(1.4rem,3vh,2rem);border-bottom:2px solid var(--accent)}
.eyebrow{font-family:var(--f-mono);font-size:.66rem;letter-spacing:.26em;color:var(--ink-muted);
         text-transform:uppercase;margin:0 0 1rem}
.page-title{font-size:clamp(1.6rem,4vw,2.2rem);margin:0;font-weight:600;letter-spacing:.02em;line-height:1.32}
.page-sub{max-width:60ch;margin:1.2rem 0 0;color:var(--ink-2);font-size:clamp(.92rem,1vw,.99rem)}

/* ---------- 區塊 ---------- */
section{padding-block:clamp(2rem,5vh,3rem)}
section + section{border-top:1px solid var(--rule-soft)}
.sec-head{margin-bottom:1.6rem;padding-bottom:.6rem;border-bottom:1px solid var(--rule);
          display:flex;align-items:baseline;gap:.8rem;flex-wrap:wrap}
.sec-num{font-family:var(--f-mono);font-size:.72rem;color:var(--accent);letter-spacing:.1em;font-weight:600}
h2{font-family:var(--f-sans);font-size:.86rem;margin:0;font-weight:600;letter-spacing:.16em;
   text-transform:uppercase;color:var(--accent)}
h2.zh{font-family:var(--f-serif);font-size:1.12rem;letter-spacing:.05em;text-transform:none;color:var(--ink-1)}
.sec-note{font-family:var(--f-mono);font-size:.64rem;letter-spacing:.16em;color:var(--ink-muted);margin-left:auto}
.group-label{font-family:var(--f-sans);font-size:.72rem;letter-spacing:.14em;color:var(--accent);font-weight:600;
             margin:2rem 0 .9rem;padding-bottom:.45rem;border-bottom:1px solid var(--rule-soft);text-transform:uppercase}
.group-label:first-child{margin-top:0}
.prose{max-width:62ch}
.prose p{margin:0 0 1.1rem;color:var(--ink-2)}
.prose p:last-child{margin-bottom:0}
.prose .lead{font-size:1.06rem;color:var(--ink-1);line-height:1.95}
.prose b{color:var(--ink-1);font-weight:600}

.pull{border-left:3px solid var(--accent);padding:.3rem 0 .3rem 1.4rem;margin:0 0 1.6rem;
      font-size:clamp(1.05rem,2vw,1.26rem);line-height:1.78;color:var(--ink-1)}
.pull cite{display:block;font-style:normal;font-family:var(--f-sans);font-size:.74rem;
           letter-spacing:.06em;color:var(--ink-muted);margin-top:.8rem}

/* ---------- 數據列 ---------- */
.tiles{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,140px),1fr));gap:0;
       border-top:1px solid var(--rule);background:var(--surface);border-inline:1px solid var(--rule)}
.tile{padding:1.05rem 1.1rem 1.2rem;border-bottom:1px solid var(--rule)}
.tile + .tile{border-left:1px solid var(--rule-soft)}
.tile-k{font-family:var(--f-sans);font-size:.63rem;letter-spacing:.13em;color:var(--ink-muted);text-transform:uppercase}
.tile-v{font-size:clamp(1.45rem,3vw,1.85rem);font-weight:600;line-height:1.15;margin-top:.42rem;letter-spacing:.01em}
.tile-v small{font-size:.44em;color:var(--ink-muted);margin-left:.2em;font-weight:400}
.tile-d{font-family:var(--f-sans);font-size:.72rem;color:var(--ink-muted);margin-top:.4rem;line-height:1.65}
.tile.on .tile-v{color:var(--accent)}

/* ---------- 面板 ---------- */
.panel{background:var(--surface);border:1px solid var(--rule)}
.panel-head{display:flex;align-items:baseline;gap:.8rem;padding:.85rem 1.1rem;border-bottom:1px solid var(--rule-soft);
            background:var(--tint);flex-wrap:wrap}
.panel-t{font-family:var(--f-sans);font-size:.82rem;font-weight:600;letter-spacing:.03em;color:var(--ink-1)}
.panel-n{font-family:var(--f-mono);font-size:.62rem;letter-spacing:.12em;color:var(--ink-muted);margin-left:auto;white-space:nowrap}
.panel-body{padding:1.1rem 1.1rem 1.3rem}
.panel-note{font-family:var(--f-sans);font-size:.79rem;color:var(--ink-2);line-height:1.85;margin:0 0 1.2rem;max-width:62ch}
.panels{display:grid;gap:clamp(1rem,2.4vw,1.6rem)}
.panels.two{grid-template-columns:repeat(auto-fit,minmax(min(100%,340px),1fr))}

/* ---------- 圖表 ---------- */
.chart{margin:0;position:relative}
.plot{position:relative;width:100%}
.plot svg{display:block;width:100%;height:auto;overflow:visible}
.plot svg text{font-family:var(--f-sans)}
.plot svg .ax{font-family:var(--f-mono);font-size:9.5px;letter-spacing:.05em;font-variant-numeric:tabular-nums}
.plot svg .lbl{font-size:11px}
.plot svg .val{font-family:var(--f-mono);font-size:10.5px;font-weight:600;font-variant-numeric:tabular-nums}
.plot svg .big{font-family:var(--f-serif);font-size:16px;font-weight:600}
.tip{position:absolute;z-index:20;pointer-events:none;background:var(--surface);border:1px solid var(--rule);
     padding:.5rem .7rem;min-width:110px;box-shadow:0 4px 16px rgba(27,30,36,.1)}
.tip b{display:block;font-family:var(--f-sans);font-size:.75rem;font-weight:600;color:var(--ink-1);line-height:1.5}
.tip i{display:block;font-style:normal;font-size:.66rem;color:var(--ink-muted);margin-top:.2rem;font-family:var(--f-mono)}
.tip u{display:block;text-decoration:none;font-size:.82rem;color:var(--accent);margin-top:.32rem;font-weight:600;
       font-family:var(--f-mono);font-variant-numeric:tabular-nums}
.legend{display:flex;flex-wrap:wrap;gap:.4rem 1.4rem;margin-bottom:1rem;font-family:var(--f-sans);font-size:.75rem;color:var(--ink-2)}
.legend span{display:flex;align-items:center;gap:.45rem}
.legend i{width:10px;height:10px;flex:none}
.legend i[data-s="1"]{background:var(--series-1)}
.legend i[data-s="2"]{background:var(--series-2)}
.legend i[data-s="3"]{background:var(--series-3)}
.legend b{font-family:var(--f-mono);font-weight:600;color:var(--ink-1);font-variant-numeric:tabular-nums}
.tbl{margin-top:1.2rem;border-top:1px solid var(--rule-soft);padding-top:.7rem}
.tbl summary{font-family:var(--f-sans);font-size:.72rem;letter-spacing:.08em;color:var(--ink-muted);
             cursor:pointer;list-style:none;padding:.2rem 0;transition:color .25s}
.tbl summary::-webkit-details-marker{display:none}
.tbl summary::before{content:"＋ "}
.tbl[open] summary::before{content:"− "}
.tbl summary:hover{color:var(--accent)}
.tbl-scroll{overflow-x:auto;margin-top:.8rem}
.tbl table{border-collapse:collapse;width:100%;font-family:var(--f-sans);font-size:.76rem;font-variant-numeric:tabular-nums}
.tbl caption{text-align:left;font-size:.72rem;color:var(--ink-muted);padding-bottom:.7rem;line-height:1.75}
.tbl th,.tbl td{padding:.4rem .65rem;border-bottom:1px solid var(--rule-soft);text-align:right;white-space:nowrap}
.tbl thead th{color:var(--ink-muted);font-size:.66rem;letter-spacing:.08em;font-weight:600;border-bottom-color:var(--rule);text-transform:uppercase}
.tbl tbody th{text-align:left;font-weight:400;color:var(--ink-1);white-space:normal;min-width:9rem}
.tbl thead th:first-child{text-align:left}

/* ---------- 條目 ---------- */
.list{border-top:1px solid var(--rule)}
.item{display:grid;grid-template-columns:2.6rem 1fr auto;gap:.4rem 1.2rem;padding:1.15rem .2rem;
      border-bottom:1px solid var(--rule-soft);position:relative;transition:background .25s}
a.item:hover,a.item:focus-visible{background:var(--surface);outline:none}
a.item:hover .i-title{color:var(--accent)}
.i-num{font-family:var(--f-mono);font-size:.68rem;color:var(--ink-muted);padding-top:.4rem;letter-spacing:.06em}
.i-main{min-width:0}
.i-title{font-size:1.03rem;font-weight:600;letter-spacing:.02em;line-height:1.55;display:block;transition:color .25s}
.i-title em{font-style:normal;color:var(--ink-muted);font-size:.68em;font-family:var(--f-mono);letter-spacing:.1em;margin-left:.6rem;font-weight:400}
.i-desc{font-family:var(--f-sans);margin:.5rem 0 0;color:var(--ink-2);font-size:.82rem;line-height:1.85;max-width:64ch}
.i-tags{display:flex;flex-wrap:wrap;gap:.4rem;margin-top:.7rem}
.tag{font-family:var(--f-sans);font-size:.66rem;letter-spacing:.05em;color:var(--ink-muted);
     border:1px solid var(--rule);padding:.1rem .45rem;background:var(--surface)}
.tag.on{color:var(--accent);border-color:var(--accent);background:var(--accent-soft)}
.i-go{align-self:center;font-family:var(--f-mono);font-size:.66rem;letter-spacing:.1em;color:var(--ink-muted);
      white-space:nowrap;transition:color .25s}
a.item:hover .i-go{color:var(--accent)}
@media (max-width:620px){
  .item{grid-template-columns:2rem 1fr;padding-block:1rem}
  .i-go{grid-column:2;justify-self:start;margin-top:.55rem}
}

/* ---------- 著作：懸掛縮排 ---------- */
.cites{border-top:1px solid var(--rule)}
.cite{padding:1rem 0 1rem 2.4rem;text-indent:-2.4rem;border-bottom:1px solid var(--rule-soft);
      font-size:.93rem;line-height:1.88;margin:0}
.cite .yr{font-family:var(--f-mono);font-size:.84em;color:var(--accent);font-weight:600}
.cite em{font-style:italic}
.cite .st{font-family:var(--f-sans);font-size:.66rem;letter-spacing:.06em;border:1px solid var(--rule);
          padding:.1rem .45rem;margin-left:.45rem;color:var(--ink-muted);white-space:nowrap;text-indent:0;display:inline-block}
.cite .st.on{color:var(--accent);border-color:var(--accent);background:var(--accent-soft)}

/* ---------- 年表 ---------- */
.tl{border-left:2px solid var(--rule);margin-left:.3rem;padding-left:clamp(1.2rem,3vw,2rem)}
.tl-row{position:relative;padding-bottom:1.6rem}
.tl-row:last-child{padding-bottom:0}
.tl-row::before{content:"";position:absolute;left:calc(-1 * clamp(1.2rem,3vw,2rem) - 5px);top:.7rem;
                width:8px;height:8px;background:var(--accent);border:2px solid var(--ground)}
.tl-y{font-family:var(--f-mono);font-size:.68rem;letter-spacing:.1em;color:var(--accent);margin-bottom:.35rem;font-weight:600}
.tl-t{font-size:1.02rem;font-weight:600;letter-spacing:.02em;line-height:1.55}
.tl-d{font-family:var(--f-sans);color:var(--ink-2);font-size:.81rem;margin-top:.4rem;line-height:1.85;max-width:60ch}

/* ---------- 格狀 ---------- */
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,240px),1fr));gap:0;
      border-top:1px solid var(--rule);background:var(--surface);border-inline:1px solid var(--rule)}
.cell{padding:1.15rem 1.2rem 1.3rem;border-bottom:1px solid var(--rule)}
.cell + .cell{border-left:1px solid var(--rule-soft)}
.cell-k{font-family:var(--f-mono);font-size:.63rem;letter-spacing:.12em;color:var(--accent);margin-bottom:.5rem;font-weight:600}
.cell-t{font-size:.95rem;line-height:1.65;font-weight:600;letter-spacing:.01em}
.cell-d{font-family:var(--f-sans);color:var(--ink-muted);font-size:.78rem;margin-top:.4rem;line-height:1.8}

/* ---------- 入口 ---------- */
.portals{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,232px),1fr));gap:clamp(.8rem,1.8vw,1.1rem)}
.portal{border:1px solid var(--rule);background:var(--surface);padding:1.3rem 1.3rem 1.4rem;
        display:flex;flex-direction:column;min-height:170px;transition:border-color .25s,transform .25s}
.portal:hover{border-color:var(--accent);transform:translateY(-2px)}
.portal-n{font-family:var(--f-mono);font-size:.62rem;letter-spacing:.14em;color:var(--accent);margin-bottom:.7rem;font-weight:600}
.portal-t{font-size:1.12rem;font-weight:600;letter-spacing:.02em;line-height:1.5}
.portal-d{font-family:var(--f-sans);color:var(--ink-2);font-size:.8rem;line-height:1.85;margin-top:.5rem;flex:1}
.portal-go{font-family:var(--f-mono);font-size:.64rem;letter-spacing:.1em;color:var(--ink-muted);margin-top:1rem;transition:color .25s}
.portal:hover .portal-go{color:var(--accent)}

/* ---------- 影片 ---------- */
.vid-feature{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);gap:clamp(1.2rem,3vw,2rem);align-items:center}
@media (max-width:860px){.vid-feature{grid-template-columns:1fr}}
.vid-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,285px),1fr));gap:clamp(1.1rem,2.4vw,1.6rem)}
.vid{border:1px solid var(--rule);background:var(--surface);display:flex;flex-direction:column;overflow:hidden;
     transition:border-color .25s,transform .25s}
.vid:hover{border-color:var(--accent);transform:translateY(-2px)}
.vid-thumb{position:relative;aspect-ratio:16/9;background:var(--tint);cursor:pointer;border:0;padding:0;width:100%;display:block;overflow:hidden}
.vid-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .6s cubic-bezier(.2,.7,.3,1),filter .35s;filter:saturate(.86)}
.vid-thumb:hover img{transform:scale(1.035);filter:saturate(1)}
.play{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);z-index:2;width:46px;height:46px;
      border-radius:50%;background:var(--accent);display:grid;place-items:center;transition:transform .3s}
.play::before{content:"";border-left:13px solid #fff;border-top:8px solid transparent;border-bottom:8px solid transparent;margin-left:3px}
.vid-thumb:hover .play{transform:translate(-50%,-50%) scale(1.1)}
.vid-body{padding:.9rem 1rem 1.1rem}
.vid-t{font-size:.98rem;font-weight:600;line-height:1.6;letter-spacing:.01em}
.vid-d{font-family:var(--f-sans);color:var(--ink-2);font-size:.79rem;line-height:1.85;margin:.5rem 0 0}
.vid-meta{font-family:var(--f-mono);font-size:.6rem;letter-spacing:.1em;color:var(--ink-muted);margin-top:.75rem;display:flex;gap:.8rem;flex-wrap:wrap}
.vid.big{border:0;background:transparent}
.vid.big:hover{transform:none}
.vid.big .vid-thumb{border:1px solid var(--rule)}
.vid.big .vid-body{padding:0}
.vid.big .vid-t{font-size:clamp(1.1rem,2vw,1.32rem)}
@media (max-width:860px){.vid.big .vid-body{padding-top:1rem}}
.lb{position:fixed;inset:0;z-index:100;display:none;place-items:center;padding:clamp(.8rem,4vw,3rem);background:rgba(15,20,30,.92)}
.lb.on{display:grid}
.lb-box{width:min(1080px,100%);aspect-ratio:16/9;background:#000;position:relative}
.lb-box iframe{width:100%;height:100%;border:0;display:block}
.lb-close{position:absolute;top:-2.7rem;right:0;background:transparent;border:1px solid rgba(255,255,255,.45);
          color:#fff;width:32px;height:32px;cursor:pointer;font-size:.9rem;display:grid;place-items:center;transition:all .25s}
.lb-close:hover{background:#fff;color:#111}

/* ---------- 標籤列 ---------- */
.chips{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:.9rem}
.chip{font-family:var(--f-sans);font-size:.78rem;color:var(--ink-2);border:1px solid var(--rule);
      padding:.32rem .7rem;background:var(--surface)}

/* ---------- 頁間導引 ---------- */
.pager{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,220px),1fr));gap:0;
       border-top:1px solid var(--rule);margin-top:2rem}
.pager a{padding:1.1rem 1.2rem;border-bottom:1px solid var(--rule);background:var(--surface);transition:background .25s}
.pager a + a{border-left:1px solid var(--rule-soft)}
.pager a:hover{background:var(--tint)}
.pager .k{font-family:var(--f-mono);font-size:.62rem;letter-spacing:.14em;color:var(--ink-muted);text-transform:uppercase}
.pager .t{font-size:.95rem;font-weight:600;margin-top:.35rem;letter-spacing:.01em}
.pager a:hover .t{color:var(--accent)}

/* ---------- 頁尾 ---------- */
footer{padding-block:clamp(2rem,5vh,3rem) 2rem;border-top:2px solid var(--accent);background:var(--surface)}
.foot-grid{display:flex;flex-wrap:wrap;gap:1.6rem 3.4rem;align-items:flex-start}
.foot-k{font-family:var(--f-sans);font-size:.66rem;letter-spacing:.14em;color:var(--ink-muted);margin-bottom:.6rem;text-transform:uppercase;font-weight:600}
.foot-mail{font-family:var(--f-mono);font-size:clamp(.85rem,1.8vw,1rem);letter-spacing:.02em;position:relative;
           display:inline-block;color:var(--ink-1);border-bottom:1px solid var(--rule);transition:all .25s}
.foot-mail:hover{color:var(--accent);border-color:var(--accent)}
.foot-links{display:flex;flex-direction:column;gap:.5rem;font-family:var(--f-sans);font-size:.76rem;color:var(--ink-muted)}
.foot-links a{transition:color .25s}
.foot-links a:hover{color:var(--accent)}
.seal{margin-left:auto;flex:none;font-family:var(--f-mono);font-size:.63rem;letter-spacing:.1em;color:var(--ink-muted);
      border-left:2px solid var(--accent);padding:.4rem 0 .4rem .9rem;line-height:1.9}
.seal b{display:block;color:var(--accent);font-weight:600}
.colophon{margin-top:2rem;padding-top:1rem;border-top:1px solid var(--rule-soft);font-family:var(--f-sans);
          font-size:.7rem;color:var(--ink-muted);display:flex;flex-wrap:wrap;gap:.5rem 1.8rem;line-height:1.9}

/* ---------- 動態 ---------- */
.rise{opacity:0;transform:translateY(12px)}
.rise.in{opacity:1;transform:none;transition:opacity .6s cubic-bezier(.2,.7,.3,1),transform .6s cubic-bezier(.2,.7,.3,1)}
.fac,.page-head .eyebrow,.page-head .page-title,.page-head .page-sub{animation:up .7s cubic-bezier(.2,.7,.3,1) both}
.page-head .page-title{animation-delay:.06s}
.page-head .page-sub{animation-delay:.13s}
@keyframes up{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  .rise{opacity:1;transform:none}
  html{scroll-behavior:auto}
}
@media print{nav,.lb,.pager{display:none}body{background:#fff}}

/* ============================================================
   手繪層
   把規則直線換成手畫的線，不加卡通元素。
   全部是行內 SVG 資料 URI，無外部相依。
   ============================================================ */

/* 章節編號：手畫的圈 */
.sec-num{position:relative;padding:.3em .72em .34em;letter-spacing:.12em}
.sec-num::before{
  content:"";position:absolute;inset:-1px -2px;pointer-events:none;
  background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 60 34' preserveAspectRatio='none'%3E%3Cpath d='M31 2C14 1.4 3 8 2.4 17c-.6 9 10 15.6 27 16 17 .4 28.5-6 29.1-14.6C59 9.4 48.6 2.6 33 2.1' fill='none' stroke='%230F2D52' stroke-width='1.25' stroke-linecap='round' vector-effect='non-scaling-stroke'/%3E%3C/svg%3E") no-repeat center/100% 100%;
}

/* 章節與群組的分隔線：手畫的橫線 */
.sec-head,.group-label{border-bottom:0}
.sec-head{padding-bottom:.75rem}
.sec-head::after,.group-label::after{
  content:"";display:block;position:absolute;left:0;right:0;bottom:0;height:5px;
  background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='5'%3E%3Cpath d='M0 2.6c10-1.3 20 1.6 30 .4s20-1.9 30-.6 20 1.7 30 .5 20-1.4 30-.3' fill='none' stroke='%23BFC4CC' stroke-width='1.1' stroke-linecap='round'/%3E%3C/svg%3E") repeat-x left bottom;
}
.sec-head,.group-label{position:relative}
.group-label{padding-bottom:.6rem}

/* 抬頭與頁尾的重點線：手畫的粗線 */
.fac,.page-head,footer{border-bottom:0;border-top:0}
.fac,.page-head{position:relative}
.fac::after,.page-head::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:7px;
  background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='7'%3E%3Cpath d='M0 3.4c14-1.8 27 2.2 41 .6s26-2.6 40-.8 27 2.4 41 .7 24-1.9 38-.5' fill='none' stroke='%230F2D52' stroke-width='1.9' stroke-linecap='round'/%3E%3C/svg%3E") repeat-x left bottom;
}
footer{position:relative;border-top:0}
footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:7px;
  background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='7'%3E%3Cpath d='M0 3.4c14-1.8 27 2.2 41 .6s26-2.6 40-.8 27 2.4 41 .7 24-1.9 38-.5' fill='none' stroke='%230F2D52' stroke-width='1.9' stroke-linecap='round'/%3E%3C/svg%3E") repeat-x left top;
}

/* 卡片：手畫的外框 */
.portal,.vid{border:0;position:relative}
.portal::before,.vid::before{
  content:"";position:absolute;inset:0;pointer-events:none;z-index:1;
  background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 300 200' preserveAspectRatio='none'%3E%3Cpath d='M4 6c74-2.6 148 2.2 292-2.2 2.4 62-1.8 124 1.6 190-96 3-192-1.4-293 2.4C1.2 134 5.4 68 4 6z' fill='none' stroke='%23CBD0D8' stroke-width='1.3' vector-effect='non-scaling-stroke'/%3E%3C/svg%3E") no-repeat center/100% 100%;
  transition:opacity .25s;
}
.portal:hover::before,.vid:hover::before{
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 300 200' preserveAspectRatio='none'%3E%3Cpath d='M4 6c74-2.6 148 2.2 292-2.2 2.4 62-1.8 124 1.6 190-96 3-192-1.4-293 2.4C1.2 134 5.4 68 4 6z' fill='none' stroke='%230F2D52' stroke-width='1.6' vector-effect='non-scaling-stroke'/%3E%3C/svg%3E");
}
.vid.big::before{display:none}
.vid.big .vid-thumb{border:0;position:relative}

/* 引語：手畫的直線 */
.pull{border-left:0;position:relative;padding-left:1.5rem}
.pull::before{
  content:"";position:absolute;left:0;top:.2rem;bottom:.2rem;width:6px;
  background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='6' height='140' preserveAspectRatio='none'%3E%3Cpath d='M3.2 2c-1.4 22 1.6 44 .2 66s-1.8 44-.6 70' fill='none' stroke='%230F2D52' stroke-width='2.2' stroke-linecap='round' vector-effect='non-scaling-stroke'/%3E%3C/svg%3E") no-repeat center/100% 100%;
}

/* 年表：手畫的縱線 */
.tl{border-left:0;position:relative}
.tl::before{
  content:"";position:absolute;left:0;top:.3rem;bottom:.3rem;width:6px;
  background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='6' height='300' preserveAspectRatio='none'%3E%3Cpath d='M3 2c-1.2 40 1.4 80 .2 120s-1.6 80-.4 176' fill='none' stroke='%23CBD0D8' stroke-width='1.6' stroke-linecap='round' vector-effect='non-scaling-stroke'/%3E%3C/svg%3E") no-repeat center/100% 100%;
}

/* 手畫的箭頭：取代 → */
.portal-go,.i-go,.pager .k{position:relative}
.portal-go::after,.i-go::after{
  content:"";display:inline-block;width:26px;height:11px;margin-left:.45rem;vertical-align:-1px;
  background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 12'%3E%3Cpath d='M2 6.2c7-.7 17 .6 25.4-.2' fill='none' stroke='%23696E77' stroke-width='1.3' stroke-linecap='round'/%3E%3Cpath d='M21.5 2.2c2.4 1.5 4.4 3 6 3.9-1.7 1-3.7 2.5-6.2 4.1' fill='none' stroke='%23696E77' stroke-width='1.3' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") no-repeat center/contain;
  transition:transform .25s;
}
.portal:hover .portal-go::after,a.item:hover .i-go::after{
  transform:translateX(3px);
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 12'%3E%3Cpath d='M2 6.2c7-.7 17 .6 25.4-.2' fill='none' stroke='%230F2D52' stroke-width='1.5' stroke-linecap='round'/%3E%3Cpath d='M21.5 2.2c2.4 1.5 4.4 3 6 3.9-1.7 1-3.7 2.5-6.2 4.1' fill='none' stroke='%230F2D52' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
}

/* 手繪重點：畫在字下面的一筆 */
.hl{
  background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 200 12' preserveAspectRatio='none'%3E%3Cpath d='M3 7.5c34-3.4 68 2.6 102-1.2 22-2.4 44 1.8 93 .4' fill='none' stroke='%230F2D52' stroke-width='3.6' stroke-linecap='round' opacity='.3' vector-effect='non-scaling-stroke'/%3E%3C/svg%3E") no-repeat left bottom/100% .46em;
  padding:0 .12em .1em;
}

/* 標籤：手畫的框 */
.tag{border:0;position:relative;padding:.16rem .55rem;background:transparent}
.tag::before{
  content:"";position:absolute;inset:0;
  background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 80 24' preserveAspectRatio='none'%3E%3Cpath d='M3 4c19-1.6 38 1.4 74-1.2.9 6-.6 12 .4 18.4-24 1.4-48-.9-74 1.3C2.4 16 3.8 10 3 4z' fill='none' stroke='%23C6CBD3' stroke-width='1.1' vector-effect='non-scaling-stroke'/%3E%3C/svg%3E") no-repeat center/100% 100%;
}
.tag.on{background:transparent;color:var(--accent)}
.tag.on::before{
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 80 24' preserveAspectRatio='none'%3E%3Cpath d='M3 4c19-1.6 38 1.4 74-1.2.9 6-.6 12 .4 18.4-24 1.4-48-.9-74 1.3C2.4 16 3.8 10 3 4z' fill='none' stroke='%230F2D52' stroke-width='1.3' vector-effect='non-scaling-stroke'/%3E%3C/svg%3E");
}
.cite .st{border:0;position:relative;padding:.14rem .5rem}
.cite .st::before{
  content:"";position:absolute;inset:0;
  background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 80 24' preserveAspectRatio='none'%3E%3Cpath d='M3 4c19-1.6 38 1.4 74-1.2.9 6-.6 12 .4 18.4-24 1.4-48-.9-74 1.3C2.4 16 3.8 10 3 4z' fill='none' stroke='%23C6CBD3' stroke-width='1.1' vector-effect='non-scaling-stroke'/%3E%3C/svg%3E") no-repeat center/100% 100%;
}
.cite .st.on{background:transparent}
.cite .st.on::before{
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 80 24' preserveAspectRatio='none'%3E%3Cpath d='M3 4c19-1.6 38 1.4 74-1.2.9 6-.6 12 .4 18.4-24 1.4-48-.9-74 1.3C2.4 16 3.8 10 3 4z' fill='none' stroke='%230F2D52' stroke-width='1.3' vector-effect='non-scaling-stroke'/%3E%3C/svg%3E");
}

/* 形象照：手畫的外框，稍微偏移 */
.fac-photo{position:relative}
.fac-photo::after{
  content:"";position:absolute;inset:-7px -7px 3px 3px;pointer-events:none;
  background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 150 200' preserveAspectRatio='none'%3E%3Cpath d='M4 5c37-2.2 74 1.8 143-1.6 1.8 62-1.4 124 1.2 192-48 2.4-96-1.2-144 1.8C1.4 134 5.6 68 4 5z' fill='none' stroke='%230F2D52' stroke-width='1.2' vector-effect='non-scaling-stroke' opacity='.42'/%3E%3C/svg%3E") no-repeat center/100% 100%;
}
.fac-photo img{border:0}

@media (prefers-reduced-motion:reduce){
  .portal-go::after,.i-go::after{transition:none}
}
@media print{
  .sec-num::before,.tag::before,.cite .st::before,.fac-photo::after{display:none}
}