@import url('https://fonts.googleapis.com/css2?family=Inter:ital,wght@0,400;0,500;0,600;0,700;0,800;1,400&family=JetBrains+Mono:wght@400&family=Playfair+Display:ital@1&display=swap');

:root{
  --ink:#0d0d0d;
  --ink-2:#151020;
  --purple:#8000ff;
  --magenta:#ff00ff;
  --mint:#00ffa3;
  --text:#e6e0f2;
  --dim:#a094b8;
  --line:rgba(128,0,255,.3);
  --hair:rgba(128,0,255,.16);
  --glow:0 0 12px rgba(255,0,255,.6);
  --mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --sans:Inter,"Helvetica Neue",system-ui,-apple-system,"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
}

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

html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
  scroll-padding-top:152px;
}

body{
  margin:0;
  background-color:var(--ink);
  background-image:
    linear-gradient(rgba(128,0,255,.075) 1px,transparent 1px),
    linear-gradient(90deg,rgba(128,0,255,.075) 1px,transparent 1px);
  background-size:64px 64px,64px 64px;
  color:var(--text);
  font:400 17px/1.75 var(--sans);
  overflow-x:hidden;
}

body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:95;
  pointer-events:none;
  background:repeating-linear-gradient(180deg,rgba(255,255,255,.035) 0 1px,transparent 1px 3px);
  opacity:.6;
}

.skip{
  position:fixed;
  left:1rem;
  top:.7rem;
  z-index:130;
  transform:translateY(-180%);
  padding:.8rem 1.1rem;
  border-radius:4px;
  background:var(--magenta);
  color:#0d0d0d;
  font:600 13px/1 var(--mono);
  letter-spacing:.08em;
  text-decoration:none;
  transition:transform .22s ease;
}
.skip:focus{transform:none}

/* ---------- 头 ---------- */

.hud{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(13,13,13,.94);
  border-bottom:1px solid var(--line);
  box-shadow:0 14px 34px -22px rgba(255,0,255,.7);
}

.ticker{
  display:flex;
  align-items:center;
  gap:.6rem;
  margin:0;
  padding:.55rem clamp(1rem,4vw,2.5rem);
  border-bottom:1px solid var(--hair);
  font:400 11.5px/1.4 var(--mono);
  letter-spacing:.26em;
  color:var(--magenta);
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.ticker::before{
  content:"";
  flex:0 0 auto;
  width:7px;
  height:7px;
  background:var(--magenta);
  box-shadow:var(--glow);
  animation:blip 2.6s steps(1,end) infinite;
}
@keyframes blip{
  0%,68%{opacity:1}
  72%,84%{opacity:.15}
  88%,100%{opacity:1}
}

.brandrow{
  display:flex;
  align-items:center;
  padding:.8rem clamp(1rem,4vw,2.5rem);
}

.brand{
  display:inline-flex;
  align-items:center;
  gap:.7rem;
  min-height:44px;
  text-decoration:none;
  color:#fff;
  font-weight:800;
  font-size:1.12rem;
  letter-spacing:.01em;
}
.brand img{
  display:block;
  width:34px;
  height:34px;
  border-radius:4px;
  flex:0 0 auto;
}
.brand-name{
  text-shadow:0 0 16px rgba(128,0,255,.9);
}

.dock{
  border-top:1px solid var(--line);
  padding:0 clamp(.4rem,2vw,1.4rem);
}
.dock nav{
  overflow-x:auto;
  scrollbar-width:thin;
  scrollbar-color:var(--purple) transparent;
}
.dock nav::-webkit-scrollbar{height:4px}
.dock nav::-webkit-scrollbar-thumb{background:var(--purple)}
.dock ul{
  display:flex;
  gap:.1rem;
  margin:0;
  padding:0;
  list-style:none;
}
.dock li{flex:0 0 auto}
.dock li:nth-child(2),
.dock li:nth-child(4),
.dock li:nth-child(6){border-left:1px solid var(--hair)}
.dock a{
  display:flex;
  align-items:center;
  min-height:46px;
  padding:0 .85rem;
  border-bottom:2px solid transparent;
  color:#c6bcdd;
  font:500 14.5px/1.35 var(--mono);
  letter-spacing:.02em;
  text-decoration:none;
  white-space:nowrap;
  transition:color .18s ease,background .18s ease,border-color .18s ease;
}
.dock a:hover,
.dock a:focus-visible{
  color:#fff;
  border-bottom-color:var(--magenta);
  background:linear-gradient(180deg,rgba(128,0,255,.22),transparent);
  text-shadow:0 0 10px rgba(255,0,255,.85);
  outline:none;
}

/* ---------- 首屏 ---------- */

.hero{
  display:grid;
  grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);
  gap:clamp(1.2rem,4vw,3.2rem);
  align-items:center;
  min-height:66vh;
  padding:clamp(2.2rem,6vw,4.5rem) clamp(1rem,4vw,2.5rem);
  border-bottom:1px solid var(--line);
  position:relative;
}
.hero::after{
  content:"";
  position:absolute;
  right:clamp(1rem,4vw,2.5rem);
  bottom:0;
  width:64px;
  height:64px;
  border-right:1px solid var(--magenta);
  border-bottom:1px solid var(--magenta);
  opacity:.5;
  pointer-events:none;
}

h1{
  margin:0 0 1rem;
  font-size:clamp(2.1rem,5.6vw,3.9rem);
  line-height:1.08;
  font-weight:800;
  letter-spacing:-.02em;
  color:#fff;
  text-shadow:0 0 18px rgba(128,0,255,.8),0 0 46px rgba(255,0,255,.35);
  animation:slice 7s ease-in-out infinite;
}
@keyframes slice{
  0%,90%,100%{transform:none}
  93%{transform:skewX(-1.8deg) translateX(3px)}
  96%{transform:skewX(1.4deg) translateX(-3px)}
}

.lede{
  margin:0;
  max-width:46ch;
  color:var(--dim);
  font-size:1.02rem;
}

.hero-fig{
  margin:0;
  position:relative;
  aspect-ratio:4/5;
  overflow:hidden;
  border-radius:4px;
  background:linear-gradient(155deg,rgba(128,0,255,.55),rgba(255,0,255,.28) 52%,rgba(13,13,13,.95));
  box-shadow:0 0 0 1px rgba(255,0,255,.4),inset 0 0 48px rgba(128,0,255,.35);
}
.hero-fig img{
  display:block;
  width:100%;
  height:100%;
  object-fit:cover;
  filter:contrast(1.08) saturate(1.05);
}
.hero-fig::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background:repeating-linear-gradient(180deg,rgba(13,13,13,.3) 0 2px,transparent 2px 4px);
}

/* ---------- 主栅格 ---------- */

.shell{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,272px);
  align-items:start;
  gap:clamp(1.6rem,4vw,3rem);
  max-width:1240px;
  margin:0 auto;
  padding:clamp(1.6rem,4vw,3rem) clamp(1rem,4vw,2.5rem);
}

.stream{min-width:0}

.stream > div{
  padding:2rem 0;
  border-top:1px dashed var(--hair);
  scroll-margin-top:160px;
}
.stream > div:first-child{
  padding-top:.4rem;
  border-top:0;
}

.stream h2{
  margin:0 0 .4rem;
  font-size:clamp(1.5rem,3vw,2rem);
  line-height:1.22;
  font-weight:800;
  letter-spacing:-.01em;
  color:#fff;
  text-shadow:0 0 14px rgba(128,0,255,.65);
}
.stream h2::before{
  content:"";
  display:inline-block;
  width:.66em;
  height:.13em;
  margin-right:.5em;
  vertical-align:.3em;
  background:var(--magenta);
  box-shadow:var(--glow);
}

.stream h3{
  margin:1.8rem 0 .5rem;
  font-size:1.14rem;
  line-height:1.4;
  font-weight:700;
  color:#f1eaff;
}

.stream p{margin:0 0 1.1rem}
.stream strong{color:#fff;font-weight:700}

.stream a{
  color:#d9b8ff;
  text-decoration:none;
  border-bottom:1px solid rgba(255,0,255,.5);
  transition:color .16s ease,background .16s ease;
}
.stream a:hover{color:#fff;background:rgba(255,0,255,.18)}

.stream ul,
.stream ol{margin:1rem 0;padding-left:1.25rem}
.stream li{margin:.4rem 0}
.stream ul li::marker{color:var(--magenta)}
.stream ol li::marker{color:var(--purple);font-family:var(--mono)}

.stream blockquote{
  margin:1.6rem 0;
  padding:.9rem 1.1rem;
  border-left:3px solid var(--magenta);
  border-radius:0 4px 4px 0;
  background:rgba(128,0,255,.1);
  color:#efe8fb;
}
.stream blockquote p:last-child{margin:0}

.stream figure{margin:1.6rem 0}
.stream figcaption{
  margin-top:.5rem;
  font:400 12px/1.6 var(--mono);
  letter-spacing:.06em;
  color:var(--dim);
}
.stream img{
  display:block;
  max-width:100%;
  height:auto;
  border-radius:4px;
}

.stream table{
  width:100%;
  margin:1.4rem 0;
  border-collapse:collapse;
  font-size:15.5px;
}
.stream th,
.stream td{
  padding:.55rem .7rem;
  border:1px solid var(--line);
  text-align:left;
  vertical-align:top;
}
.stream th{background:rgba(128,0,255,.18);color:#fff;font-weight:700}

hr{
  height:1px;
  margin:.55rem 0 1.3rem;
  border:0;
  background:linear-gradient(90deg,var(--purple),rgba(255,0,255,.45) 42%,transparent 92%);
}

/* ---------- 侧栏 ---------- */

.rail{
  position:sticky;
  top:152px;
  padding:1.1rem 1rem 1rem;
  border:1px solid var(--line);
  border-radius:4px;
  background:rgba(21,16,32,.82);
  box-shadow:inset 0 0 26px rgba(128,0,255,.14);
}
.rail h2{
  margin:0 0 .5rem;
  font:400 11.5px/1.4 var(--mono);
  letter-spacing:.28em;
  color:var(--mint);
}
.rail hr{margin:0 0 .7rem;width:44%}

.rail-list{
  counter-reset:rail;
  display:grid;
  gap:.1rem;
  margin:0;
  padding:0;
  list-style:none;
}
.rail-list li{counter-increment:rail}
.rail-list a{
  display:flex;
  align-items:baseline;
  gap:.55rem;
  min-height:44px;
  padding:.55rem .2rem;
  border-bottom:1px solid var(--hair);
  color:#c6bcdd;
  font-size:14.5px;
  line-height:1.45;
  text-decoration:none;
  transition:color .16s ease,padding-left .16s ease;
}
.rail-list a::before{
  content:counter(rail,decimal-leading-zero);
  font:400 11px/1 var(--mono);
  color:var(--purple);
}
.rail-list a:hover,
.rail-list a:focus-visible{
  color:#fff;
  padding-left:.5rem;
  text-shadow:0 0 9px rgba(255,0,255,.85);
  outline:none;
}

/* ---------- 页脚 ---------- */

footer{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:.3rem 1.2rem;
  max-width:1240px;
  margin:0 auto;
  padding:1.5rem clamp(1rem,4vw,2.5rem) 2.4rem;
  border-top:1px solid var(--line);
  color:var(--dim);
  font-size:13.5px;
}
footer p{
  margin:0;
  font-family:var(--mono);
  letter-spacing:.08em;
}
footer small{font-size:13.5px}
footer a{
  display:inline-flex;
  align-items:center;
  min-height:44px;
  color:var(--magenta);
  text-decoration:none;
}
footer a:hover{color:#fff;text-shadow:var(--glow)}

/* ---------- 动效 ---------- */

.js .stream > div{
  opacity:0;
  transform:translateY(16px);
}
.js .stream > div.in{
  opacity:1;
  transform:none;
  transition:opacity .6s ease var(--d,0ms),transform .6s ease var(--d,0ms);
}

/* ---------- 断点 ---------- */

@media (max-width:900px){
  .hero{
    grid-template-columns:1fr;
    min-height:auto;
    padding-top:1.6rem;
  }
  .hero-fig{
    aspect-ratio:16/10;
    order:2;
  }
  .shell{grid-template-columns:1fr}
  .rail{position:static}
  .rail hr{width:70%}
}

@media (max-width:600px){
  body{font-size:16px}
  html{scroll-padding-top:136px}
  .stream > div{scroll-margin-top:140px}
  .hero{padding-bottom:2rem}
  .hero::after{display:none}
  .dock a{padding:0 .7rem;font-size:13.5px}
  .stream h2::before{width:.5em}
  .rail{padding:1rem .8rem}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation:none !important;
    transition:none !important;
  }
  .js .stream > div{opacity:1;transform:none}
}

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