@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500&family=Playfair+Display:ital,wght@0,400;0,700;0,900;1,400&family=Source+Serif+4:ital,wght@0,300;0,400;0,600;1,300&display=swap');

:root{
  --green:#00ff80;
  --blue:#0000ff;
  --ink:#000000;
  --paper:#f2f2f2;
  --line:rgba(0,255,128,.35);
  --mono:'JetBrains Mono',ui-monospace,SFMono-Regular,Menlo,monospace;
  --serif:'Source Serif 4',Georgia,'Songti SC',serif;
  --display:'Playfair Display',Georgia,'Songti SC',serif;
}

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

html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}

body{
  margin:0;
  padding-bottom:96px;
  background:var(--ink);
  color:var(--paper);
  font-family:var(--serif);
  font-size:1.0625rem;
  line-height:1.72;
  overflow-x:hidden;
}

img{display:block;max-width:100%;height:auto}
a{color:var(--green)}
h1,h2,h3{font-family:var(--display);font-weight:900;line-height:1.06;letter-spacing:-.015em;margin:0}
p{margin:0}

small{
  display:block;
  font-family:var(--mono);
  font-size:1rem;
  font-weight:500;
  letter-spacing:.16em;
  line-height:1.4;
  color:var(--green);
}

:focus-visible{outline:3px solid var(--green);outline-offset:2px}

/* ---------- 底部固定条 ---------- */
.bar{
  position:fixed;
  left:0;right:0;bottom:0;
  z-index:60;
  display:flex;
  align-items:center;
  gap:.4rem;
  padding:.45rem .7rem;
  background:#000;
  border-top:3px solid var(--green);
  box-shadow:0 -6px 0 rgba(0,0,255,.4);
}

.brand{
  display:flex;
  align-items:center;
  gap:.5rem;
  flex:1 1 auto;
  min-width:0;
  min-height:44px;
  color:var(--green);
  text-decoration:none;
  font-family:var(--display);
  font-weight:700;
  font-size:1.06rem;
  letter-spacing:-.01em;
}
.brand-name{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.brand-mark{width:30px;height:30px;border:2px solid var(--green);object-fit:cover;border-radius:0}

.menu-btn{
  min-height:44px;
  padding:.35rem .8rem;
  font-family:var(--mono);
  font-size:1rem;
  font-weight:500;
  color:#fff;
  background:var(--blue);
  border:2px solid var(--green);
  border-radius:0;
  cursor:pointer;
}
.bar.open .menu-btn{background:#000;color:var(--green)}

.call{
  display:inline-flex;
  align-items:center;
  min-height:44px;
  padding:.35rem .9rem;
  background:var(--green);
  color:#000;
  font-family:var(--mono);
  font-weight:700;
  text-decoration:none;
  border:2px solid #000;
}
.call:hover{background:#fff}

.nav{display:none}
.bar.open .nav{
  display:block;
  position:absolute;
  left:0;right:0;bottom:100%;
  background:#000;
  border-top:3px solid var(--green);
  border-bottom:3px solid var(--blue);
  padding:.45rem;
  max-height:62vh;
  overflow-y:auto;
}
.nav-g{display:flex;flex-wrap:wrap;gap:.25rem;margin:0;padding:0}
.nav-g + .nav-g{border-top:1px dashed var(--line);margin-top:.45rem;padding-top:.45rem}
.nav a{
  display:inline-flex;
  align-items:center;
  min-height:44px;
  padding:.3rem .7rem;
  color:#e9e9e9;
  text-decoration:none;
  font-family:var(--mono);
  font-size:1rem;
  border:1px solid transparent;
}
.nav a:hover,.nav a:focus-visible{background:var(--green);color:#000;border-color:var(--green)}
.nav a[aria-current]{color:var(--green);border-color:var(--green)}

/* ---------- 主体 ---------- */
main{padding:0 1rem}

.hero{
  display:grid;
  grid-template-columns:1fr;
  gap:1.4rem;
  align-content:center;
  min-height:70vh;
  padding:2rem 0 2.4rem;
  border-bottom:3px solid var(--blue);
  background-image:
    linear-gradient(rgba(0,255,128,.10) 1px,transparent 1px),
    linear-gradient(90deg,rgba(0,255,128,.10) 1px,transparent 1px);
  background-size:44px 44px;
}
.hero-copy{display:flex;flex-direction:column;align-items:flex-start;gap:.85rem}
.hero h1{font-size:clamp(2.25rem,10vw,3.4rem)}
.lede{
  max-width:46ch;
  padding-left:.85rem;
  border-left:4px solid var(--green);
  color:#dcdcdc;
  font-size:1.0625rem;
}
.cta{
  display:inline-flex;
  align-items:center;
  min-height:46px;
  padding:.35rem 1.4rem;
  background:var(--green);
  border:3px solid var(--green);
  color:#000;
  font-family:var(--mono);
  font-weight:700;
  text-decoration:none;
}
.cta:hover{background:#000;color:var(--green)}

.hero-fig{
  margin:0;
  min-height:180px;
  border:3px solid var(--green);
  border-radius:4px;
  overflow:hidden;
  background-color:#060606;
  background-image:repeating-linear-gradient(45deg,rgba(0,255,128,.14) 0 2px,transparent 2px 14px);
}
.hero-fig img{width:100%;height:100%;object-fit:cover;filter:grayscale(.2) contrast(1.06)}

/* ---------- 正文区块（page.content 原样进入 main > section） ---------- */
main > section{
  padding:2.2rem 0;
  border-bottom:2px solid var(--line);
  scroll-margin-top:1.25rem;
}
main > section small{margin-bottom:.5rem}
main > section h2{font-size:clamp(1.65rem,6vw,2.5rem);margin:.2rem 0 .4rem}
main > section h3{font-size:clamp(1.22rem,4vw,1.6rem);margin:1.5rem 0 .35rem;color:var(--green)}
main > section p{max-width:64ch;margin:.9rem 0}
main > section ul,main > section ol{max-width:62ch;margin:.9rem 0;padding-left:1.3rem}
main > section li{margin:.4rem 0}
main > section a{color:var(--green);text-underline-offset:3px}
main > section figure{
  margin:1.2rem 0;
  padding:.45rem;
  border:2px solid var(--line);
  border-radius:4px;
  background:rgba(255,255,255,.04);
}
main > section figcaption{font-family:var(--mono);font-size:1rem;color:#b9b9b9;padding-top:.4rem}
main > section blockquote{
  margin:1.2rem 0;
  padding:.75rem 1rem;
  border-left:5px solid var(--blue);
  background:rgba(0,0,255,.2);
  color:#ededed;
}
main > section table{width:100%;border-collapse:collapse;font-size:1rem}
main > section th,main > section td{border:2px solid var(--line);padding:.5rem .6rem;text-align:left}
main > section hr{border:0;border-top:3px solid var(--green);margin:1.6rem 0}

/* ---------- 右侧栏 ---------- */
.side{padding:2rem 0 2.4rem}
.pane{
  padding:1rem;
  border:2px solid var(--line);
  border-radius:4px;
  background:rgba(0,255,128,.07);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
}
.pane + .pane{margin-top:1rem}
.pane h2{font-size:1.3rem;margin:.25rem 0 .7rem;color:#fff}
.side-list{list-style:none;margin:0;padding:0}
.side-list li + li{margin-top:.25rem}
.side-list a{
  display:flex;
  align-items:center;
  min-height:44px;
  padding:.2rem .6rem;
  border-left:3px solid transparent;
  color:#eaeaea;
  text-decoration:none;
  font-family:var(--mono);
  font-size:1rem;
}
.side-list a:hover,.side-list a:focus-visible{
  background:rgba(0,255,128,.18);
  border-left-color:var(--green);
  color:var(--green);
}
.host{margin:0;font-family:var(--mono);color:var(--green);word-break:break-all}

/* ---------- 页脚 ---------- */
.foot{
  display:grid;
  gap:1.2rem;
  padding:1.8rem 1rem 2.4rem;
  border-top:3px solid var(--green);
  background:linear-gradient(180deg,rgba(0,0,255,.25),#000 62%);
}
.foot-addr{font-style:normal;display:flex;flex-direction:column;gap:.2rem}
.foot-name{font-family:var(--display);font-weight:900;font-size:1.25rem;color:var(--green)}
.foot-host{font-family:var(--mono);font-size:1rem;color:#c9c9c9}
.foot-desc{max-width:44ch;margin:.7rem 0 0;color:#c9c9c9;font-size:1rem}
.foot-links{list-style:none;display:flex;flex-wrap:wrap;gap:.35rem;margin:0;padding:0}
.foot-links a{
  display:inline-flex;
  align-items:center;
  min-height:44px;
  padding:.2rem .6rem;
  border-bottom:2px solid var(--line);
  color:#ededed;
  text-decoration:none;
  font-family:var(--mono);
  font-size:1rem;
}
.foot-links a:hover{background:var(--green);color:#000;border-bottom-color:var(--green)}
.copy{
  grid-column:1 / -1;
  margin:0;
  padding-top:.8rem;
  border-top:1px dashed var(--line);
  font-family:var(--mono);
  font-size:1rem;
  color:#909090;
}

/* ---------- 动效 ---------- */
@keyframes rise{
  from{opacity:0;transform:translateY(12px)}
  to{opacity:1;transform:none}
}
.hero-copy > *{animation:rise .34s linear both}
.hero-copy > *:nth-child(2){animation-delay:.05s}
.hero-copy > *:nth-child(3){animation-delay:.1s}
.hero-copy > *:nth-child(4){animation-delay:.15s}
.side-list li{animation:rise .3s linear both}
.side-list li:nth-child(1){animation-delay:.02s}
.side-list li:nth-child(2){animation-delay:.06s}
.side-list li:nth-child(3){animation-delay:.1s}
.side-list li:nth-child(4){animation-delay:.14s}
.side-list li:nth-child(5){animation-delay:.18s}
.side-list li:nth-child(6){animation-delay:.22s}
.side-list li:nth-child(7){animation-delay:.26s}
.hero-fig{animation:rise .34s linear both}

@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *{animation:none !important;transition:none !important}
}

/* ---------- 桌面 ---------- */
@media (min-width:960px){
  body{padding-bottom:112px;font-size:1.09rem}
  .bar{padding:.5rem 1.6rem;gap:.75rem}
  .menu-btn{display:none}
  .bar .nav,.bar.open .nav{
    display:flex;
    position:static;
    max-height:none;
    overflow:visible;
    gap:.6rem;
    padding:0;
    border:0;
    background:transparent;
  }
  .nav-g + .nav-g{border:0;margin:0;padding-left:.7rem;border-left:2px solid var(--blue)}

  main{
    display:grid;
    grid-template-columns:minmax(0,1fr) 320px;
    column-gap:2.6rem;
    max-width:1240px;
    margin:0 auto;
    padding:0 2.2rem;
  }
  main > section{grid-column:1}
  main > .hero{
    grid-column:1 / -1;
    grid-template-columns:1.15fr .85fr;
    align-items:center;
    gap:2.4rem;
    min-height:70vh;
    padding:2.5rem 0 3rem;
  }
  main > .hero h1{font-size:clamp(2.6rem,4.4vw,4.4rem)}
  .hero-fig{min-height:360px;height:100%}
  main > .side{
    grid-column:2;
    grid-row:2 / span 60;
    align-self:start;
    position:sticky;
    top:1.6rem;
    padding:2.4rem 0 3rem;
  }

  .foot{
    grid-template-columns:1.3fr 1fr;
    gap:2rem;
    padding:2.4rem max(2.2rem,calc((100vw - 1240px) / 2)) 2.6rem;
  }
}

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