@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+TC:wght@300;400;500;700&family=Noto+Serif+TC:wght@400;500;600;700&display=swap');

:root{
  --ink:#001e3c;
  --ink-2:#012a4a;
  --ink-3:#013a52;
  --mint:#99ffcc;
  --neon:#00ff41;
  --paper:#d8f0e8;
  --dim:#8fb6c9;
  --rail:112px;
  --serif:'Noto Serif TC',Georgia,serif;
  --sans:'Noto Sans TC',system-ui,-apple-system,'PingFang SC','Microsoft YaHei',sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;overflow-x:clip}
body{
  margin:0;
  padding-left:var(--rail);
  background-color:var(--ink);
  background-image:
    radial-gradient(1100px 720px at 84% -10%, rgba(0,255,65,.13), transparent 62%),
    radial-gradient(880px 780px at 3% 106%, rgba(153,255,204,.12), transparent 60%);
  background-attachment:fixed;
  color:var(--paper);
  font-family:var(--sans);
  font-size:17px;
  line-height:1.85;
  font-weight:400;
  overflow-x:clip;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--neon)}
a:focus-visible{outline:2px solid var(--neon);outline-offset:3px}

/* 竖排固定栏 */
.rail{
  position:fixed;top:0;bottom:0;left:0;width:var(--rail);
  display:flex;flex-direction:column;align-items:center;gap:4px;
  padding:16px 0 18px;
  background:rgba(0,24,48,.9);
  backdrop-filter:blur(10px);
  border-right:1px solid rgba(153,255,204,.13);
  z-index:60;
  overflow-y:auto;
  scrollbar-width:none;
}
.rail::-webkit-scrollbar{display:none}
.mark{display:grid;place-items:center;width:56px;height:56px;flex:0 0 auto;text-decoration:none;border-radius:50%;transition:transform .55s ease}
.mark:hover{transform:rotate(90deg) scale(1.06)}
.mark img{width:40px;height:40px;object-fit:contain}
.dock{width:100%;margin-top:14px}
.dock summary{list-style:none;display:flex;align-items:center;justify-content:center;gap:6px;min-height:44px;color:var(--mint);font-size:11px;letter-spacing:.14em;cursor:pointer}
.dock summary::-webkit-details-marker{display:none}
.dock menu{list-style:none;margin:0;padding:0 8px;display:flex;flex-direction:column;gap:2px}
.dock a{
  display:flex;align-items:center;gap:7px;min-height:46px;padding:0 8px;
  color:var(--dim);text-decoration:none;font-size:12.5px;line-height:1.25;
  transition:color .25s,background .3s,transform .3s;
}
.dock a:hover,.dock a.on{background:var(--mint);color:var(--ink);transform:translateX(3px)}
.dot{width:8px;height:8px;flex:0 0 auto;background:var(--neon);clip-path:circle(50%);opacity:.75;transition:opacity .25s,background .25s}
.dock a:hover .dot,.dock a.on .dot{opacity:1;background:var(--ink)}
.d0{clip-path:polygon(50% 0,100% 50%,50% 100%,0 50%)}
.d1{clip-path:circle(50%)}
.d2{clip-path:polygon(50% 0,100% 100%,0 100%)}
.d3{clip-path:polygon(25% 0,75% 0,100% 50%,75% 100%,25% 100%,0 50%)}
.d4{clip-path:polygon(50% 0,100% 38%,82% 100%,18% 100%,0 38%)}
.d5{clip-path:polygon(0 0,100% 0,100% 60%,50% 100%,0 60%)}
.d6{clip-path:polygon(50% 0,90% 25%,90% 75%,50% 100%,10% 75%,10% 25%)}
.wire{
  margin-top:auto;display:flex;align-items:center;justify-content:center;gap:6px;
  width:100%;min-height:48px;padding:0 8px;
  color:var(--mint);text-decoration:none;font-size:12px;letter-spacing:.1em;
  border-top:1px solid rgba(153,255,204,.13);
}
.wire:hover{background:rgba(153,255,204,.1)}
.pulse{width:7px;height:7px;flex:0 0 auto;background:var(--neon);clip-path:circle(50%);animation:beat 3.2s ease-in-out infinite}
@keyframes beat{0%,100%{transform:scale(1);opacity:.85}50%{transform:scale(1.6);opacity:1}}

/* 版面 */
main{
  display:grid;
  grid-template-columns:minmax(0,1fr) 264px;
  grid-template-rows:auto 1fr;
  column-gap:clamp(24px,4vw,64px);
  max-width:1220px;
  margin:0 auto;
  padding:0 clamp(18px,3vw,44px);
  min-width:0;
}

/* 首屏 */
.hero{
  position:relative;grid-column:1;grid-row:1;
  min-height:70vh;
  display:flex;flex-direction:column;justify-content:center;
  padding:clamp(40px,7vw,88px) 0 clamp(28px,5vw,52px);
  overflow:hidden;
}
.hero h1,.hero .subtitle,.hero .cue{position:relative;z-index:2}
.hero h1{
  font-family:var(--serif);font-weight:700;
  font-size:clamp(2.2rem,6.2vw,5rem);
  line-height:1.1;letter-spacing:.01em;
  color:#eafff6;margin:0 0 22px;
  animation:rise .9s cubic-bezier(.2,.7,.2,1) both;
}
.hero .subtitle{
  max-width:32em;margin:0;color:var(--dim);
  font-size:clamp(1rem,1.5vw,1.12rem);line-height:1.9;
  animation:rise .9s .12s cubic-bezier(.2,.7,.2,1) both;
}
.cue{
  display:inline-flex;align-items:center;gap:10px;align-self:flex-start;
  margin-top:32px;min-height:44px;padding-right:6px;
  color:var(--mint);text-decoration:none;font-size:.78rem;letter-spacing:.22em;
  animation:rise .9s .24s cubic-bezier(.2,.7,.2,1) both;
}
.cue svg{width:15px;height:15px;animation:bob 2.6s ease-in-out infinite}
.cue:hover{color:var(--neon)}
@keyframes bob{0%,100%{transform:translateY(0)}50%{transform:translateY(5px)}}
@keyframes rise{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:none}}

.ghost{
  position:absolute;right:-.02em;top:4%;z-index:0;
  font-family:var(--serif);font-weight:700;
  font-size:clamp(9rem,21vw,19rem);line-height:.8;
  color:rgba(153,255,204,.07);
  pointer-events:none;user-select:none;
}
.membrane{
  position:absolute;right:-6%;bottom:-14%;z-index:0;
  width:min(56%,420px);margin:0;pointer-events:none;opacity:.6;
}
.membrane svg{width:100%;height:auto;display:block}

/* 图文块 */
.flow{grid-column:1;grid-row:2;min-width:0;overflow-wrap:break-word}
.plate{margin:0 0 clamp(16px,2.4vw,24px);padding:0;background:transparent;animation:none}
.plate-fig{
  position:relative;margin:0;overflow:hidden;
  aspect-ratio:16/7;min-height:170px;
  background:linear-gradient(145deg,#013a52 0%,#01453c 55%,#002347 100%);
  animation:breathe 9s ease-in-out infinite;
}
@keyframes breathe{0%,100%{filter:brightness(1)}50%{filter:brightness(1.14)}}
.plate-fig img{position:relative;z-index:1;width:100%;height:100%;object-fit:cover}
.cells{
  position:absolute;inset:0;z-index:2;pointer-events:none;opacity:.75;mix-blend-mode:screen;
  background-image:
    radial-gradient(circle at 12% 30%, rgba(153,255,204,.4) 0 2px, transparent 2px),
    radial-gradient(circle at 68% 72%, rgba(0,255,65,.35) 0 2px, transparent 2px),
    radial-gradient(circle at 40% 15%, rgba(153,255,204,.24) 0 3px, transparent 3px);
  background-size:120px 120px,90px 90px,160px 160px;
  animation:drift 24s linear infinite;
}
@keyframes drift{to{background-position:120px 60px,-90px 40px,80px -70px}}

/* 正文章节 */
.flow > article{scroll-margin-top:92px}
.flow > article:not(.plate){
  background:var(--ink-2);
  padding:clamp(24px,4vw,50px);
  margin:0 0 16px;
  animation:rise .8s cubic-bezier(.2,.7,.2,1) both;
}
.flow > article:nth-child(2){animation-delay:.04s}
.flow > article:nth-child(3){animation-delay:.1s}
.flow > article:nth-child(4){animation-delay:.16s}
.flow > article:nth-child(5){animation-delay:.22s}
.flow > article:nth-child(6){animation-delay:.28s}
.flow > article:nth-child(7){animation-delay:.34s}
.flow > article:nth-child(8){animation-delay:.4s}

.flow h2{
  font-family:var(--serif);font-weight:600;
  font-size:clamp(1.45rem,3.1vw,2.25rem);line-height:1.28;
  color:#eafff6;margin:0 0 16px;
}
.flow h3{
  font-family:var(--serif);font-weight:600;
  font-size:clamp(1.1rem,2.1vw,1.35rem);
  color:var(--mint);margin:30px 0 10px;
}
.flow p{margin:0 0 1.05em;color:#c8e3da}
.flow ul,.flow ol{padding-left:1.25em;color:#c8e3da;margin:0 0 1.05em}
.flow li{margin:.4em 0}
.flow li::marker{color:var(--neon)}
.flow strong{color:#ffffff;font-weight:700}
.flow blockquote{
  margin:1.4em 0;padding:2px 0 2px 18px;
  border-left:3px solid var(--neon);color:var(--mint);
}
.flow figure{margin:1.4em 0}
.flow figcaption{font-size:.82rem;color:#7fa2b6;margin-top:8px}
.flow a{color:var(--neon);text-underline-offset:3px}
.flow a:hover{color:var(--mint)}
.flow table{width:100%;max-width:100%;border-collapse:collapse;font-size:.94rem;table-layout:fixed}
.flow th,.flow td{padding:9px 10px;text-align:left;border-bottom:1px solid rgba(153,255,204,.16);overflow-wrap:break-word}
.flow th{color:var(--mint);font-weight:500}
.flow pre{max-width:100%;overflow-x:auto}

/* 右侧目录 */
.side{
  grid-column:2;grid-row:1 / span 2;align-self:start;
  position:sticky;top:32px;
  background:var(--ink-2);
  border-top:3px solid var(--neon);
  padding:20px 18px 22px;
  min-width:0;
}
.side h2{font-family:var(--serif);font-size:1.05rem;font-weight:600;margin:0 0 5px;color:#eafff6}
.side .subtitle{margin:0 0 14px;font-size:.74rem;letter-spacing:.16em;color:var(--mint)}
.side ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column}
.side a{
  display:flex;align-items:center;min-height:40px;padding:6px 0;
  color:var(--dim);text-decoration:none;font-size:.85rem;line-height:1.4;
  border-bottom:1px dashed rgba(153,255,204,.16);
  transition:color .22s,padding-left .22s;
}
.side a:hover{color:var(--neon);padding-left:6px}

/* 页脚 */
footer{
  margin-top:clamp(36px,6vw,72px);
  padding:clamp(26px,4.5vw,52px) clamp(18px,3vw,44px) 26px;
  border-top:1px solid rgba(153,255,204,.15);
}
.foot-row{
  display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;
  gap:clamp(12px,2.6vw,36px);
  max-width:1220px;margin:0 auto;
}
.foot-mark{
  font-family:var(--serif);font-weight:700;
  font-size:clamp(1.5rem,4vw,2.9rem);line-height:1.1;
  color:#eafff6;text-decoration:none;letter-spacing:.02em;
}
.foot-mark:hover{color:var(--mint)}
.foot-nav{display:flex;flex-wrap:wrap;gap:clamp(10px,1.8vw,24px)}
.foot-nav a{
  display:inline-flex;align-items:center;min-height:44px;
  color:var(--dim);text-decoration:none;font-size:.79rem;
}
.foot-nav a:hover{color:var(--neon)}
.copy{margin:0;font-size:.74rem;letter-spacing:.06em;color:#6d95aa}

/* 移动端 */
@media (max-width:899px){
  body{padding-left:0;padding-top:64px}
  .rail{
    top:0;bottom:auto;left:0;right:0;width:auto;height:64px;
    flex-direction:row;align-items:center;justify-content:space-between;gap:8px;
    padding:0 10px;border-right:0;border-bottom:1px solid rgba(153,255,204,.14);
    overflow:visible;backdrop-filter:blur(12px);
  }
  .mark{width:48px;height:48px}
  .dock{margin:0;width:auto}
  .dock summary{
    min-height:44px;padding:0 14px;font-size:13px;
    background:rgba(153,255,204,.12);color:var(--mint);
  }
  .dock[open] summary{background:var(--mint);color:var(--ink)}
  .dock menu{
    position:fixed;top:64px;left:0;right:0;padding:10px;
    background:#001a33;border-bottom:1px solid rgba(153,255,204,.16);
    max-height:72vh;overflow:auto;box-shadow:0 18px 40px rgba(0,0,0,.55);
  }
  .dock a{min-height:48px;font-size:14px}
  .dock a:hover,.dock a.on{transform:none}
  .wire{
    margin-top:0;width:auto;min-width:74px;height:44px;
    border-top:0;border-left:1px solid rgba(153,255,204,.14);padding:0 12px;
  }
  main{grid-template-columns:minmax(0,1fr);grid-template-rows:auto auto auto;padding:0 16px}
  .hero{grid-column:1;grid-row:1;min-height:auto;padding:30px 0 22px;overflow:visible}
  .flow{grid-column:1;grid-row:2}
  .side{grid-column:1;grid-row:3;position:static;margin-top:18px}
  .ghost{font-size:7.6rem;top:-2%;right:0;line-height:.75}
  .membrane{width:66%;right:0;bottom:-4%;opacity:.4}
  .hero h1{font-size:clamp(2rem,9vw,2.9rem)}
  .plate-fig{aspect-ratio:16/9}
  .flow > article:not(.plate){padding:22px 18px}
  footer{padding:28px 16px 24px;margin-top:36px}
  .foot-row{flex-direction:column;align-items:flex-start;gap:10px}
  .foot-mark{font-size:1.95rem}
  .copy{font-size:.76rem}
}

@media (max-width:419px){
  .flow table{font-size:.86rem}
  .flow th,.flow td{padding:8px 7px}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
}

button[aria-expanded]{min-width:44px;min-height:44px}