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

:root{
  --ink:#001e3c;
  --deep:#00152b;
  --mint:#99ffcc;
  --neon:#00ff41;
  --fg:#e9fff7;
  --dim:#a3c6ba;
  --line:rgba(153,255,204,.16);
  --card:rgba(153,255,204,.05);
  --r:28px;
  --sans:"Jost","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --serif:"Bodoni Moda","Songti SC","Times New Roman",serif;
}

*,*::before,*::after{box-sizing:border-box}

html{
  scroll-behavior:smooth;
  overflow-x:clip;
}

body{
  margin:0;
  padding-left:0;
  background:var(--deep);
  color:var(--fg);
  font:400 17px/1.7 var(--sans);
  -webkit-font-smoothing:antialiased;
  position:relative;
}

body::before{
  content:"";
  position:fixed;
  inset:-25% -12% auto -12%;
  height:130vh;
  z-index:0;
  pointer-events:none;
  filter:blur(20px);
  background:
    radial-gradient(42% 36% at 14% 16%, rgba(0,255,65,.17), transparent 68%),
    radial-gradient(36% 40% at 80% 6%, rgba(153,255,204,.15), transparent 72%),
    radial-gradient(54% 46% at 58% 74%, rgba(0,30,60,.92), transparent 76%);
  animation:breathe 15s ease-in-out infinite;
}

@keyframes breathe{
  0%,100%{transform:scale(1);opacity:.75}
  50%{transform:scale(1.05);opacity:1}
}

@keyframes morph{
  0%,100%{border-radius:46% 54% 42% 58%/52% 44% 56% 48%}
  50%{border-radius:58% 42% 55% 45%/44% 58% 42% 56%}
}

a{color:var(--mint)}
img{max-width:100%}

/* ---------- 侧栏 ---------- */
.rail{
  position:fixed;
  left:0;top:0;bottom:0;
  width:252px;
  z-index:40;
  display:flex;
  flex-direction:column;
  gap:26px;
  padding:26px 18px 26px 22px;
  background:linear-gradient(180deg,rgba(0,30,60,.92),rgba(0,21,43,.97));
  border-right:1px solid var(--line);
  backdrop-filter:blur(14px);
  overflow-y:auto;
}

.logo{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:44px;
  height:44px;
  border-radius:16px;
  background:rgba(153,255,204,.1);
  border:1px solid var(--line);
  text-decoration:none;
  box-shadow:0 14px 30px -18px rgba(0,255,65,.7);
  transition:transform .3s ease,box-shadow .3s ease;
}
.logo:hover{transform:translateY(-2px);box-shadow:0 18px 34px -14px rgba(0,255,65,.85)}
.logo-img{display:block;width:30px;height:30px;border-radius:8px;object-fit:contain}
.logo-mark{font-family:var(--serif);font-size:20px;color:var(--mint);line-height:1}

.rail-nav{display:flex;flex-direction:column;gap:20px}
.grp-t{margin:0 0 6px 12px;font-size:13px;letter-spacing:.2em;color:var(--dim)}
.grp-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px}

.nlink{
  display:flex;
  align-items:center;
  min-height:42px;
  padding:8px 12px;
  border-radius:14px;
  color:var(--fg);
  font-size:16px;
  text-decoration:none;
  transition:background .25s ease,color .25s ease,transform .25s ease;
}
.nlink:hover,.nlink:focus-visible{
  background:rgba(153,255,204,.1);
  color:var(--mint);
  transform:translateX(3px);
  outline:none;
}

.rail-contact{
  margin-top:auto;
  display:flex;
  flex-direction:column;
  gap:2px;
  padding:12px;
  border-radius:18px;
  border:1px solid var(--line);
  background:rgba(0,255,65,.05);
}
.c-label{font-size:13px;letter-spacing:.2em;color:var(--dim)}
.c-host{font-size:15px;color:var(--mint);word-break:break-all}

/* ---------- 移动端顶栏 / 遮罩 ---------- */
.topbar{
  display:none;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:8px 14px;
  position:fixed;
  top:0;left:0;right:0;
  z-index:55;
  background:rgba(0,21,43,.92);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
body.js .topbar{display:flex}
.top-logo{display:inline-flex;text-decoration:none}
.top-btn{
  min-height:44px;
  padding:0 16px;
  border-radius:16px;
  border:1px solid var(--line);
  background:rgba(153,255,204,.1);
  color:var(--fg);
  font:500 16px var(--sans);
  cursor:pointer;
}
.top-btn:hover{background:rgba(153,255,204,.18)}

.scrim{
  position:fixed;
  inset:0;
  z-index:50;
  background:rgba(0,14,28,.62);
  opacity:0;
  pointer-events:none;
  transition:opacity .3s ease;
}
body.nav-open .scrim{opacity:1;pointer-events:auto}

/* ---------- 首屏 ---------- */
.hero{
  position:relative;
  z-index:1;
  min-height:70vh;
  max-width:1240px;
  margin:0 auto;
  display:grid;
  grid-template-columns:1.02fr .98fr;
  align-items:center;
  gap:clamp(20px,4vw,56px);
  padding:clamp(28px,5vw,64px) clamp(18px,4vw,48px) 96px;
  overflow:hidden;
}

.hero-media{position:relative}
.hero-img{
  display:block;
  width:100%;
  height:auto;
  object-fit:cover;
  border-radius:46% 54% 42% 58%/52% 44% 56% 48%;
  box-shadow:0 46px 90px -44px rgba(0,255,65,.55);
  animation:morph 19s ease-in-out infinite, breathe 11s ease-in-out infinite;
}
.blob{
  width:100%;
  aspect-ratio:1/1;
  border-radius:46% 54% 42% 58%/52% 44% 56% 48%;
  background:conic-gradient(from 40deg, rgba(0,255,65,.45), rgba(153,255,204,.8), rgba(0,30,60,.95), rgba(0,255,65,.45));
  box-shadow:0 46px 90px -44px rgba(0,255,65,.5);
  animation:morph 17s ease-in-out infinite, breathe 9s ease-in-out infinite;
}

.hero-copy{text-align:right}
.hero-h1{
  margin:0;
  font-family:var(--serif);
  font-weight:500;
  font-size:clamp(30px,5vw,56px);
  line-height:1.16;
  letter-spacing:-.01em;
  background:linear-gradient(118deg,#ffffff,var(--mint) 58%,var(--neon));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-lead{
  margin:18px 0 0 auto;
  max-width:46ch;
  font-size:16px;
  color:var(--dim);
}

.hero-band{
  position:absolute;
  left:0;right:0;bottom:0;
  height:66px;
  background:linear-gradient(90deg,var(--mint),var(--neon));
  opacity:.18;
  clip-path:polygon(0 64%,100% 0,100% 100%,0 100%);
}

/* ---------- 主区 ---------- */
.wrap{
  position:relative;
  z-index:1;
  max-width:1240px;
  margin:0 auto;
  padding:0 clamp(18px,4vw,48px) 80px;
  display:grid;
  grid-template-columns:minmax(0,1fr) 300px;
  gap:clamp(22px,3vw,44px);
  align-items:start;
}

.doc{display:flex;flex-direction:column;gap:24px}

.doc > section{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r);
  padding:clamp(22px,3vw,34px);
  box-shadow:0 26px 60px -36px rgba(0,0,0,.9);
  scroll-margin-top:96px;
  transition:transform .35s ease,box-shadow .35s ease,border-color .35s ease,opacity .6s ease;
}
.doc > section:hover{
  transform:translateY(-3px);
  border-color:rgba(153,255,204,.34);
  box-shadow:0 36px 70px -32px rgba(0,255,65,.3);
}
body.js .doc > section:not(.in){opacity:0;transform:translateY(16px)}

.doc h2{
  margin:0 0 16px;
  font-family:var(--serif);
  font-weight:500;
  font-size:clamp(21px,2.6vw,27px);
  line-height:1.34;
  color:#ffffff;
}
.doc h2 > span{position:relative;display:inline-block}
.doc h2 > span::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-6px;
  height:2px;
  background:linear-gradient(90deg,var(--neon),transparent);
}

.doc h3{
  margin:24px 0 10px;
  font-size:19px;
  font-weight:600;
  line-height:1.4;
  color:var(--mint);
}
.doc h3 > span{display:inline-block}

.doc p{margin:0 0 14px;color:var(--fg)}
.doc p:last-child{margin-bottom:0}
.doc ul,.doc ol{margin:0 0 14px;padding-left:22px}
.doc li{margin:0 0 8px}
.doc a{color:var(--mint);text-underline-offset:3px}
.doc a:hover{color:var(--neon)}
.doc strong{color:#ffffff}
.doc img{border-radius:20px;height:auto;box-shadow:0 22px 50px -30px rgba(0,0,0,.9)}
.doc blockquote{
  margin:0 0 14px;
  padding:12px 18px;
  border-left:2px solid var(--neon);
  background:rgba(0,255,65,.06);
  border-radius:0 16px 16px 0;
  color:var(--dim);
}
.doc table{width:100%;border-collapse:collapse;margin:0 0 14px;font-size:16px}
.doc th,.doc td{border-bottom:1px solid var(--line);padding:10px 8px;text-align:left}

/* ---------- 右栏 ---------- */
.side{
  position:sticky;
  top:92px;
  padding:22px;
  border-radius:var(--r);
  border:1px solid var(--line);
  background:rgba(0,30,60,.68);
  box-shadow:0 26px 60px -38px rgba(0,0,0,.95);
}
.side-title{
  margin:0 0 12px;
  font-size:15px;
  font-weight:500;
  letter-spacing:.16em;
  color:var(--mint);
}
.side-title .dot{
  display:inline-block;
  width:7px;height:7px;
  margin-right:9px;
  border-radius:50%;
  background:var(--neon);
  vertical-align:middle;
  box-shadow:0 0 0 4px rgba(0,255,65,.16);
  animation:breathe 5s ease-in-out infinite;
}
.side-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:4px}
.side-list .nlink{font-size:15px}

/* ---------- 页脚 ---------- */
.foot{
  position:relative;
  z-index:1;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(0,30,60,.42),rgba(0,11,22,.96));
  padding:clamp(34px,6vw,70px) clamp(18px,4vw,48px) 24px;
}
.foot-top{
  max-width:1240px;
  margin:0 auto;
  display:grid;
  grid-template-columns:1.1fr .9fr;
  gap:clamp(24px,4vw,50px);
  align-items:start;
}
.foot-big{
  margin:0;
  font-family:var(--serif);
  font-weight:500;
  font-size:clamp(42px,9vw,104px);
  line-height:1.02;
  letter-spacing:-.02em;
  word-break:break-word;
  background:linear-gradient(100deg,var(--mint),var(--neon));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.foot-addr{
  margin-top:16px;
  font-style:normal;
  display:flex;
  flex-direction:column;
  gap:4px;
  font-size:16px;
  color:var(--dim);
}
.foot-addr .host{color:var(--mint);letter-spacing:.04em;word-break:break-all}

.foot-cols{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.foot-nav dl{margin:0;display:grid;gap:2px}
.foot-nav dt{margin:0}
.foot-nav dd{
  margin:0 0 8px;
  font-size:14px;
  letter-spacing:.04em;
  color:var(--dim);
}
.foot-list{list-style:none;margin:0;padding:0;display:grid;gap:2px}
.foot a{
  display:inline-flex;
  align-items:center;
  min-height:40px;
  color:var(--fg);
  font-size:16px;
  text-decoration:none;
  transition:color .22s ease,transform .22s ease;
}
.foot a:hover{color:var(--neon);transform:translateX(2px)}

.foot-base{
  max-width:1240px;
  margin:34px auto 0;
  padding-top:16px;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  font-size:15px;
  color:var(--dim);
}
.copy{margin:0}
.top-link{color:var(--mint)}

/* ---------- 断点 ---------- */
@media (max-width:1080px){
  .wrap{grid-template-columns:minmax(0,1fr)}
  .side{position:static}
}

@media (max-width:959px){
  body{padding-left:0}
  body.js{padding-top:60px}

  .rail{
    position:static;
    width:100%;
    flex-direction:row;
    flex-wrap:wrap;
    align-items:center;
    gap:8px;
    padding:10px 14px;
    border-right:0;
    border-bottom:1px solid var(--line);
    background:rgba(0,21,43,.95);
    overflow:visible;
  }
  .rail-nav{flex:1 1 100%;overflow-x:auto;display:block}
  .grp{display:flex;align-items:center;gap:6px}
  .grp-t{display:none}
  .grp-list{flex-direction:row;gap:6px}
  .nlink{white-space:nowrap;padding:8px 14px;min-height:44px}
  .rail-contact{display:none}

  body.js .rail{
    position:fixed;
    inset:0 auto 0 0;
    width:min(86vw,322px);
    flex-direction:column;
    flex-wrap:nowrap;
    align-items:stretch;
    gap:20px;
    padding:24px 18px;
    overflow-y:auto;
    border-right:1px solid var(--line);
    border-bottom:0;
    transform:translateX(-101%);
    transition:transform .4s cubic-bezier(.2,.8,.25,1);
    z-index:60;
  }
  body.js.nav-open .rail{transform:none}
  body.js .rail-nav{flex:0 0 auto;overflow:visible}
  body.js .grp{display:block}
  body.js .grp-t{display:block}
  body.js .grp-list{flex-direction:column;gap:2px}
  body.js .rail-contact{display:flex;margin-top:auto}

  .hero{
    grid-template-columns:1fr;
    min-height:0;
    padding-top:26px;
    padding-bottom:84px;
  }
  .hero-copy{order:1;text-align:left}
  .hero-lead{margin-left:0}
  .hero-media{order:2}

  .foot-top{grid-template-columns:1fr}
  .foot-cols{grid-template-columns:1fr 1fr;gap:16px}
}

@media (max-width:420px){
  .hero-h1{font-size:clamp(27px,8vw,34px)}
  .foot-big{font-size:clamp(36px,12vw,52px)}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none !important;transition:none !important}
  body.js .doc > section:not(.in){opacity:1;transform:none}
}

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