:root{
  --red:#ff0000;
  --pink:#ff006e;
  --ink:#1a1a2e;
  --bg:#0a0a14;
  --txt:#eef0ff;
  --dim:#a6aac8;
  --panel:rgba(255,255,255,.045);
  --line:rgba(255,0,110,.3);
  --glow:0 0 12px rgba(255,0,110,.6);
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:
    radial-gradient(820px 460px at 12% -10%,rgba(255,0,0,.2),transparent 62%),
    radial-gradient(680px 480px at 88% 4%,rgba(255,0,110,.22),transparent 64%),
    repeating-linear-gradient(90deg,rgba(255,255,255,.026) 0 1px,transparent 1px 84px),
    var(--bg);
  color:var(--txt);
  font-family:"Nunito Sans","Rubik",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.78;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:60;
  pointer-events:none;
  background:repeating-linear-gradient(to bottom,rgba(0,0,0,.34) 0 1px,transparent 1px 3px);
  opacity:.42;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit}
h1,h2,h3{font-family:"Rubik",system-ui,sans-serif;line-height:1.18}
p{margin:0 0 1em}

/* ---------- 顶栏 ---------- */
.topbar{
  position:sticky;
  top:0;
  z-index:40;
  background:rgba(10,10,20,.86);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.brandrow{
  max-width:1200px;
  margin:0 auto;
  padding:14px 22px 0;
  display:flex;
  align-items:center;
  justify-content:space-between;
}
.brand{
  font-family:"Rubik",sans-serif;
  font-weight:700;
  font-size:1.28rem;
  letter-spacing:.16em;
  color:#fff;
  text-decoration:none;
  text-shadow:0 0 14px rgba(255,0,0,.8),0 0 30px rgba(255,0,110,.5);
}
.brand:hover{color:#ffd9e6}
.menurow{
  max-width:1200px;
  margin:0 auto;
  padding:4px 22px 12px;
  display:flex;
  align-items:center;
  gap:14px;
  flex-wrap:wrap;
}
.menu{display:flex;flex-wrap:wrap;gap:2px;flex:1 1 320px}
.menu a{
  display:inline-flex;
  align-items:center;
  min-height:44px;
  padding:8px 12px;
  font-size:16px;
  color:var(--dim);
  text-decoration:none;
  border:1px solid transparent;
  transition:color .16s,background .16s,border-color .16s,text-shadow .16s;
}
.menu a:hover,.menu a:focus-visible{
  color:#fff;
  border-color:var(--line);
  background:rgba(255,0,110,.12);
  text-shadow:var(--glow);
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:46px;
  padding:10px 22px;
  font-family:"Rubik",sans-serif;
  font-weight:600;
  font-size:16px;
  letter-spacing:.06em;
  text-decoration:none;
  color:#0a0a14;
  background:linear-gradient(100deg,var(--red),var(--pink));
  border:1px solid rgba(255,255,255,.4);
  border-radius:0;
  box-shadow:0 0 0 1px rgba(255,0,110,.4),0 0 18px rgba(255,0,110,.4);
  transition:transform .18s,box-shadow .18s,filter .18s;
}
.btn:hover,.btn:focus-visible{
  transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(255,255,255,.6),0 0 30px rgba(255,0,110,.75);
  filter:saturate(1.2);
}
.cta{flex:0 0 auto}
.btn-big{padding:14px 34px;font-size:18px}
.btn-ghost{
  color:var(--txt);
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  box-shadow:none;
}
.btn-ghost:hover{color:#fff;box-shadow:0 0 18px rgba(255,0,110,.5)}

/* ---------- 头图 ---------- */
.hero{
  position:relative;
  min-height:100vh;
  min-height:100svh;
  display:grid;
  place-items:center;
  text-align:center;
  padding:96px 22px 150px;
  overflow:hidden;
  clip-path:polygon(0 0,100% 0,100% 93%,50% 100%,0 93%);
  isolation:isolate;
}
.hero-media{position:absolute;inset:0;z-index:-2}
.hero-media .hero-img{
  width:100%;
  height:100%;
  object-fit:cover;
  opacity:.42;
  filter:saturate(1.25) contrast(1.08);
}
.hero::after{
  content:"";
  position:absolute;
  inset:0;
  z-index:-1;
  background:
    radial-gradient(60% 60% at 50% 45%,rgba(255,0,110,.22),transparent 70%),
    linear-gradient(180deg,rgba(10,10,20,.72),rgba(10,10,20,.9));
}
.hero-inner{max-width:760px}
.badge{
  display:inline-block;
  margin:0 0 20px;
  padding:7px 16px;
  font-size:16px;
  letter-spacing:.3em;
  color:#ffd7e5;
  border:1px solid var(--pink);
  background:rgba(255,0,110,.12);
  box-shadow:0 0 18px rgba(255,0,110,.35) inset,0 0 14px rgba(255,0,110,.35);
  animation:bob 5s ease-in-out infinite;
}
.hero h1{
  position:relative;
  margin:0 0 18px;
  font-size:clamp(2.05rem,7vw,4.5rem);
  font-weight:700;
  letter-spacing:.01em;
  color:#fff;
  text-shadow:0 0 18px rgba(255,0,110,.75),0 0 48px rgba(255,0,0,.45);
}
.hero h1::after{
  content:attr(data-text);
  position:absolute;
  inset:0;
  color:var(--pink);
  opacity:.5;
  pointer-events:none;
  animation:glitch 5.5s steps(1) infinite;
}
.lede{
  max-width:44ch;
  margin:0 auto 26px;
  color:#d8dcf4;
  font-size:1.03rem;
}

/* ---------- 正文区 ---------- */
main{
  max-width:1200px;
  margin:0 auto;
  padding:56px 22px 90px;
  display:grid;
  grid-template-columns:minmax(0,1fr) 302px;
  gap:44px;
  align-items:start;
}
.doc{min-width:0}
.doc section{
  position:relative;
  margin:0 0 28px;
  padding:34px 30px;
  background:var(--panel);
  border:1px solid rgba(255,255,255,.08);
  border-left:3px solid var(--pink);
  backdrop-filter:blur(9px);
  -webkit-backdrop-filter:blur(9px);
  box-shadow:0 0 0 1px rgba(255,0,110,.04);
  border-radius:0;
  scroll-margin-top:150px;
  transition:border-color .2s,box-shadow .2s;
}
.doc section:hover{
  border-color:rgba(255,0,110,.5);
  box-shadow:0 0 26px rgba(255,0,110,.18);
}
.doc h2{
  margin:0 0 16px;
  font-size:clamp(1.45rem,3vw,1.95rem);
  color:#fff;
  text-shadow:0 0 14px rgba(255,0,110,.45);
}
.doc h2>span,.doc h3>span{
  display:inline-block;
  border-bottom:2px solid var(--red);
  padding-bottom:3px;
}
.doc h3{
  margin:1.5em 0 .5em;
  font-size:1.22rem;
  color:#fff;
  text-shadow:0 0 10px rgba(255,0,110,.35);
}
.doc p{margin:0 0 1em}
.doc a{
  color:#ff86ae;
  text-decoration:underline;
  text-decoration-color:rgba(255,0,110,.55);
  text-underline-offset:3px;
}
.doc a:hover{color:#fff}
.doc strong{color:#fff}
.doc ul,.doc ol{margin:0 0 1em;padding-left:1.35em}
.doc li{margin:.35em 0}
.doc li::marker{color:var(--pink)}
.doc blockquote{
  margin:0 0 1em;
  padding:14px 20px;
  border-left:3px solid var(--red);
  background:rgba(255,0,0,.08);
  color:#e6e8fb;
}
.doc blockquote p:last-child{margin:0}
.doc img{
  border:1px solid var(--line);
  margin:0 0 1em;
}
.doc table{
  width:100%;
  border-collapse:collapse;
  margin:0 0 1em;
  font-size:16px;
}
.doc th,.doc td{
  padding:10px 12px;
  border:1px solid rgba(255,255,255,.12);
  text-align:left;
}
.doc th{background:rgba(255,0,110,.14);color:#fff}
.doc hr{border:0;border-top:1px solid rgba(255,255,255,.12);margin:1.6em 0}

/* ---------- 侧栏 ---------- */
.rail{
  position:sticky;
  top:160px;
  padding:22px 20px 24px;
  background:var(--panel);
  border:1px solid var(--line);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  box-shadow:0 0 22px rgba(255,0,110,.12);
}
.rail-title{
  margin:0 0 14px;
  font-size:1rem;
  letter-spacing:.24em;
  color:#fff;
  text-shadow:var(--glow);
}
.rail-title>span{border-bottom:2px solid var(--red);padding-bottom:4px}
.rail-list{list-style:none;margin:0;padding:0;display:grid;gap:2px}
.rail-list li{opacity:0;animation:rise .5s ease forwards}
.rail-list li:nth-child(1){animation-delay:.05s}
.rail-list li:nth-child(2){animation-delay:.1s}
.rail-list li:nth-child(3){animation-delay:.15s}
.rail-list li:nth-child(4){animation-delay:.2s}
.rail-list li:nth-child(5){animation-delay:.25s}
.rail-list li:nth-child(6){animation-delay:.3s}
.rail-list a{
  display:flex;
  align-items:center;
  gap:10px;
  min-height:44px;
  padding:6px 8px;
  color:var(--dim);
  text-decoration:none;
  border-left:2px solid transparent;
  transition:color .16s,background .16s,border-color .16s,padding .16s;
}
.rail-list a:hover,.rail-list a:focus-visible{
  color:#fff;
  padding-left:14px;
  border-left-color:var(--pink);
  background:rgba(255,0,110,.14);
}
.rail-list em{
  font-family:var(--mono);
  font-style:normal;
  font-size:.8rem;
  color:var(--pink);
}

/* ---------- 页脚 ---------- */
.foot{
  margin-top:40px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(255,0,110,.1),rgba(10,10,20,.65));
}
.cta-block{
  max-width:1200px;
  margin:0 auto;
  padding:58px 22px 26px;
  text-align:center;
}
.cta-title{
  margin:0 0 18px;
  font-size:clamp(1.6rem,4vw,2.3rem);
  color:#fff;
  text-shadow:0 0 18px rgba(255,0,110,.6);
}
.cta-title>span{
  display:inline-block;
  border-bottom:3px solid var(--red);
  padding-bottom:4px;
}
.foot-grid{
  max-width:1200px;
  margin:0 auto;
  padding:20px 22px 34px;
  display:grid;
  grid-template-columns:1.3fr 1fr 1fr .9fr;
  gap:26px;
  align-items:start;
}
.foot-addr{
  font-style:normal;
  display:grid;
  gap:8px;
  align-content:start;
}
.foot-addr strong{
  font-family:"Rubik",sans-serif;
  font-size:1.1rem;
  letter-spacing:.14em;
  color:#fff;
  text-shadow:0 0 12px rgba(255,0,0,.7);
}
.addr-rule{display:block;height:2px;width:56px;background:linear-gradient(90deg,var(--red),transparent)}
.addr-top,.foot-extra a{width:max-content}
.foot-addr a,.foot-nav a,.foot-list a{
  display:inline-flex;
  align-items:center;
  min-height:40px;
  color:var(--dim);
  text-decoration:none;
  transition:color .16s,text-shadow .16s,transform .16s;
}
.foot-addr a:hover,.foot-nav a:hover,.foot-list a:hover{
  color:#fff;
  text-shadow:var(--glow);
  transform:translateX(3px);
}
.foot-nav dl,.foot-nav dd{margin:0}
.foot-nav dt{font-size:16px}
.foot-nav dd{
  margin:0 0 6px;
  padding-left:11px;
  font-size:16px;
  color:#7e83a6;
  border-left:1px solid var(--line);
}
.foot-list{list-style:none;margin:0;padding:0;display:grid;gap:2px}
.foot-extra{display:grid;gap:8px;justify-items:start}
.foot-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:20px 22px 30px;
  text-align:center;
  color:#9ea2c2;
  font-size:16px;
}
.foot-bottom p{margin:0}

/* ---------- 动效 ---------- */
@keyframes glitch{
  0%,90%,100%{transform:translate(2px,1px);opacity:.45}
  91%{transform:translate(-4px,-2px);opacity:.8}
  93%{transform:translate(4px,2px);opacity:.3}
  95%{transform:translate(-3px,1px);opacity:.7}
  97%{transform:translate(3px,-1px);opacity:.4}
}
@keyframes bob{
  0%,100%{transform:translateY(0)}
  50%{transform:translateY(-7px)}
}
@keyframes rise{
  from{opacity:0;transform:translateY(10px)}
  to{opacity:1;transform:translateY(0)}
}

/* ---------- 断点 ---------- */
@media (max-width:1000px){
  main{grid-template-columns:1fr;gap:34px}
  .rail{position:static;order:2}
  .foot-grid{grid-template-columns:1fr 1fr;gap:20px}
}
@media (max-width:640px){
  body{font-size:16px}
  .brandrow{padding:12px 16px 0}
  .brand{font-size:1.12rem;letter-spacing:.1em}
  .menurow{padding:2px 16px 10px;gap:10px}
  .menu{flex:1 1 100%;gap:0}
  .menu a{padding:8px 10px;font-size:16px}
  .cta{flex:1 1 100%;min-height:46px}
  .hero{padding:64px 16px 120px;min-height:88vh;min-height:88svh}
  .hero h1::after{display:none}
  main{padding:34px 16px 60px}
  .doc section{padding:24px 18px}
  .rail{top:auto}
  .cta-block{padding:40px 16px 18px}
  .foot-grid{grid-template-columns:1fr;padding:14px 16px 26px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .badge,.hero h1::after,.rail-list li{animation:none;opacity:1}
  .btn,.menu a,.rail-list a,.foot-addr a,.foot-nav a,.foot-list a{transition:none}
}

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