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

:root{
  --ink:#0d0d0d;
  --ink-2:#100b19;
  --card:#141021;
  --violet:#8000ff;
  --magenta:#ff00ff;
  --cyan:#00e5ff;
  --tx:#e9e3f6;
  --dim:#a99fc4;
  --line:rgba(128,0,255,.34);
  --bar:62px;
  --r:18px;
  --shadow:0 14px 38px rgba(0,0,0,.55);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--ink);
  color:var(--tx);
  font-family:Rubik,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  font-size:17px;
  line-height:1.75;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;z-index:60;pointer-events:none;opacity:.5;
  background:repeating-linear-gradient(180deg,rgba(255,255,255,.05) 0 1px,rgba(0,0,0,0) 1px 3px);
}
body::after{
  content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:
    radial-gradient(620px 380px at 12% 0%,rgba(128,0,255,.20),transparent 70%),
    radial-gradient(520px 340px at 100% 22%,rgba(255,0,255,.13),transparent 72%);
}
.sr{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* 顶栏 */
.top{
  position:sticky;top:0;z-index:40;height:var(--bar);
  display:flex;align-items:center;justify-content:space-between;
  padding:0 clamp(14px,3vw,28px);
  background:rgba(13,13,13,.88);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.brand{display:inline-flex;align-items:center;justify-content:center;min-width:44px;min-height:44px;text-decoration:none}
.mark{
  display:block;width:34px;height:34px;flex:none;
  background:linear-gradient(140deg,var(--magenta),var(--violet) 65%);
  clip-path:polygon(22% 0,100% 0,100% 78%,78% 100%,0 100%,0 22%);
  box-shadow:0 0 16px rgba(255,0,255,.55);
  object-fit:cover;
}
.mark--lg{width:56px;height:56px;box-shadow:0 0 26px rgba(128,0,255,.6)}

.navd{position:relative}
.navd-btn{
  list-style:none;cursor:pointer;
  display:grid;place-items:center;width:44px;height:44px;
  border:1px solid var(--line);border-radius:12px;background:rgba(128,0,255,.08);
  position:relative;z-index:56;
}
.navd-btn::-webkit-details-marker{display:none}
.navd-btn::before{
  content:"";width:20px;height:2px;background:var(--magenta);
  box-shadow:0 6px 0 var(--violet),0 -6px 0 var(--violet);
  transition:transform .2s ease;
}
.navd[open] .navd-btn{border-color:var(--magenta);box-shadow:0 0 18px rgba(255,0,255,.45)}
.navd[open] .navd-btn::before{transform:rotate(90deg)}

.navm{
  position:fixed;inset:0;z-index:50;margin:0;
  padding:calc(var(--bar) + 26px) clamp(18px,6vw,64px) 40px;
  list-style:none;display:flex;flex-direction:column;justify-content:center;gap:2px;
  background:rgba(8,6,13,.97);border-left:3px solid var(--violet);
  animation:navin .26s ease both;
}
@keyframes navin{from{opacity:0;transform:translateX(24px)}to{opacity:1;transform:none}}
.navm li{border-bottom:1px solid rgba(128,0,255,.18)}
.navm li a{
  display:block;padding:15px 10px;min-height:44px;
  font-family:Outfit,Outfit,sans-serif;font-size:21px;font-weight:600;
  color:var(--tx);text-decoration:none;letter-spacing:.02em;
}
.navm li a:hover,.navm li a:focus-visible{color:var(--magenta);text-shadow:0 0 14px var(--magenta)}

/* 锚点条 */
.rail{
  position:sticky;top:var(--bar);z-index:35;
  background:rgba(10,8,16,.94);
  border-bottom:1px solid rgba(255,255,255,.07);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
}
.rail-list{
  list-style:none;display:flex;gap:6px;margin:0;padding:5px clamp(10px,3vw,24px);
  overflow-x:auto;scrollbar-width:none;
}
.rail-list::-webkit-scrollbar{display:none}
.rail-list li{flex:none}
.rail-list a{
  display:block;padding:11px 12px;font-size:16px;line-height:1.2;white-space:nowrap;
  color:var(--dim);text-decoration:none;border-radius:8px;
  border-bottom:2px solid transparent;
}
.rail-list a:hover,.rail-list a:focus-visible{color:#fff;background:rgba(128,0,255,.16)}
.rail-list a[aria-current]{color:var(--magenta);border-bottom-color:var(--magenta);text-shadow:0 0 12px rgba(255,0,255,.7)}

/* 头图 */
.hero{
  position:relative;display:grid;grid-template-columns:1.04fr .96fr;
  min-height:70vh;border-bottom:1px solid var(--line);overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:radial-gradient(rgba(128,0,255,.55) 1px,transparent 1px);
  background-size:22px 22px;
  -webkit-mask-image:linear-gradient(120deg,#000,transparent 62%);
  mask-image:linear-gradient(120deg,#000,transparent 62%);
}
.hero-frame{
  position:relative;margin:0;min-height:280px;overflow:hidden;
  border-right:1px solid var(--line);
  clip-path:polygon(0 0,100% 0,100% 90%,9% 100%);
}
.hero-frame--grid{
  background:
    linear-gradient(150deg,rgba(255,0,255,.22),rgba(0,0,0,0) 55%),
    repeating-linear-gradient(45deg,rgba(0,229,255,.13) 0 1px,transparent 1px 16px),
    var(--ink-2);
}
.hero-img{width:100%;height:100%;object-fit:cover;display:block;filter:saturate(1.15) contrast(1.05)}
.hero-copy{
  position:relative;z-index:2;
  display:flex;flex-direction:column;justify-content:center;align-items:flex-end;
  gap:18px;padding:clamp(28px,5vw,64px);text-align:right;
}
.hero-copy::after{
  content:"";position:absolute;right:0;bottom:0;width:clamp(90px,22vw,190px);height:1px;
  background:linear-gradient(90deg,transparent,var(--magenta));
}
.glitch{
  position:relative;margin:0;
  font-family:Outfit,Rubik,sans-serif;font-weight:700;
  font-size:clamp(32px,5.4vw,62px);line-height:1.04;letter-spacing:-.02em;
  color:#fff;text-shadow:0 0 24px rgba(128,0,255,.75);
  overflow-wrap:anywhere;
}
.glitch::before,.glitch::after{
  content:attr(data-text);position:absolute;inset:0;text-align:inherit;
  pointer-events:none;
}
.glitch::before{color:var(--magenta);clip-path:inset(0 0 56% 0);opacity:.85;animation:gl 5s steps(2,end) infinite}
.glitch::after{color:var(--cyan);clip-path:inset(56% 0 0 0);opacity:.65;animation:gl 4.2s steps(2,end) infinite reverse}
@keyframes gl{
  0%,90%,100%{transform:translate(0,0)}
  92%{transform:translate(-4px,2px) skewX(-7deg)}
  95%{transform:translate(3px,-2px) skewX(6deg)}
}
.hero-desc{
  margin:0;max-width:42ch;font-size:17px;line-height:1.8;color:var(--dim);
  border-right:2px solid var(--violet);padding-right:14px;
}
.hero-jump{
  display:inline-block;padding:13px 24px;min-height:44px;
  font-family:Outfit,sans-serif;font-size:16px;font-weight:600;letter-spacing:.1em;
  color:#0d0d0d;text-decoration:none;
  background:linear-gradient(100deg,var(--magenta),var(--violet));
  clip-path:polygon(12px 0,100% 0,100% calc(100% - 12px),calc(100% - 12px) 100%,0 100%,0 12px);
  box-shadow:0 0 26px rgba(255,0,255,.4);
}
.hero-jump:hover{filter:brightness(1.14)}

/* 主体 */
.main{display:block}
.split{
  display:grid;grid-template-columns:minmax(0,1fr) 258px;
  gap:clamp(20px,3vw,40px);align-items:start;
  max-width:1180px;margin:0 auto;
  padding:clamp(22px,4vw,38px) clamp(14px,3vw,28px) 0;
}
.stream{min-width:0}
.stream > article,.stream > section{
  position:relative;
  background:linear-gradient(180deg,var(--card),#100c19);
  border:1px solid var(--line);border-radius:var(--r);
  padding:clamp(20px,3vw,34px);
  margin:0 0 22px;
  box-shadow:var(--shadow);
  scroll-margin-top:calc(var(--bar) + 62px);
}
.stream > article::before{
  content:"";position:absolute;left:0;top:16px;width:3px;height:26px;
  background:linear-gradient(180deg,var(--magenta),var(--violet));
  box-shadow:0 0 12px var(--magenta);
}
.stream > article:target{border-color:var(--magenta);box-shadow:0 0 0 1px var(--magenta),var(--shadow)}

.stream h2,.stream h3{
  font-family:Outfit,Rubik,sans-serif;font-weight:600;line-height:1.25;
  color:#fff;letter-spacing:.01em;margin:0 0 12px;
}
.stream h2{font-size:clamp(22px,3vw,30px);text-shadow:0 0 18px rgba(128,0,255,.65)}
.stream h3{font-size:clamp(18px,2.2vw,22px);text-shadow:0 0 12px rgba(255,0,255,.45)}
.stream h2+hr,.stream h3+hr,.side-h+hr{margin:0 0 18px}
.stream hr,.side hr{
  border:0;height:1px;background:linear-gradient(90deg,var(--magenta),rgba(128,0,255,.4) 45%,transparent);
  opacity:.75;
}
.stream p{margin:0 0 14px}
.stream ul,.stream ol{margin:0 0 16px;padding-left:1.25em}
.stream li{margin:0 0 8px}
.stream a{color:#dda6ff;text-decoration:underline;text-underline-offset:3px;text-decoration-color:rgba(255,0,255,.5)}
.stream a:hover{color:var(--magenta)}
.stream strong{color:#fff}
.stream blockquote{
  margin:0 0 16px;padding:12px 16px;
  border-left:3px solid var(--magenta);background:rgba(128,0,255,.1);border-radius:0 12px 12px 0;
}
.stream blockquote p:last-child{margin:0}
.stream figure{margin:0 0 16px;border:1px solid var(--line);border-radius:14px;overflow:hidden;background:#0c0913}
.stream figure img{width:100%;height:auto;display:block}
.stream figcaption{font-size:16px;color:var(--dim);padding:8px 12px}
.stream img{max-width:100%;height:auto;display:block;border-radius:12px}
.stream table{width:100%;border-collapse:collapse;font-size:16px;margin:0 0 16px}
.stream th,.stream td{padding:10px 12px;border-bottom:1px dashed var(--line);text-align:left;word-break:break-word}
.stream th{color:#fff;background:rgba(128,0,255,.12)}
.stream code{font-size:16px;background:rgba(0,229,255,.1);padding:1px 6px;border-radius:6px}

/* 侧栏 */
.side{
  position:sticky;top:calc(var(--bar) + 58px);
  background:linear-gradient(180deg,rgba(20,16,33,.96),rgba(12,9,19,.96));
  border:1px solid var(--line);border-radius:var(--r);
  padding:16px 14px;box-shadow:var(--shadow);
}
.side-h{
  margin:0;font-family:Outfit,sans-serif;font-size:16px;font-weight:600;
  letter-spacing:.22em;color:#fff;text-shadow:0 0 12px var(--violet);
}
.side-list{
  list-style:none;margin:0;padding:0;counter-reset:n;
}
.side-list li{counter-increment:n}
.side-list a{
  display:block;padding:10px 8px;font-size:16px;line-height:1.5;
  color:var(--dim);text-decoration:none;
  border-left:1px solid rgba(128,0,255,.22);
}
.side-list a::before{
  content:"0" counter(n);margin-right:9px;
  font-family:Outfit,sans-serif;font-size:16px;color:var(--violet);
}
.side-list a:hover,.side-list a:focus-visible{color:#fff;border-left-color:var(--magenta);background:rgba(255,0,255,.09)}

/* 页脚 */
.foot{
  margin-top:56px;border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(128,0,255,.09),transparent 240px),#0a0710;
  padding:0 clamp(14px,3vw,28px) 26px;
}
.foot-cta{
  max-width:1180px;margin:0 auto;padding:40px 0 30px;
  display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between;
  border-bottom:1px dashed var(--line);
}
.cta-word{
  margin:0;font-family:Outfit,sans-serif;font-weight:700;
  font-size:clamp(26px,4.6vw,44px);line-height:1.1;color:#fff;
  text-shadow:0 0 22px rgba(128,0,255,.8);
}
.cta-btn{
  display:inline-block;padding:13px 22px;min-height:44px;
  font-size:16px;font-weight:600;text-decoration:none;color:var(--magenta);
  border:1px solid var(--magenta);border-radius:10px;background:rgba(255,0,255,.08);
  box-shadow:0 0 18px rgba(255,0,255,.3) inset;
}
.cta-btn:hover{background:var(--magenta);color:#0d0d0d}
.foot-cols{
  max-width:1180px;margin:0 auto;padding:26px 0;
  display:grid;grid-template-columns:1.5fr 1fr 1fr auto;gap:22px;
}
.addr{font-style:normal;font-family:Outfit,sans-serif;font-size:18px;color:#fff;letter-spacing:.04em}
.foot-ul{list-style:none;margin:0;padding:0}
.foot-ul a{display:block;padding:10px 0;min-height:40px;color:var(--dim);text-decoration:none;font-size:16px}
.foot-ul a:hover,.foot-ul a:focus-visible{color:var(--magenta)}
.copy{
  max-width:1180px;margin:0 auto;padding-top:18px;
  border-top:1px solid rgba(255,255,255,.07);
  color:#827a99;font-size:16px;
}

/* 入场动画 */
.js .rv{opacity:0;transform:translateY(16px);transition:opacity .5s ease,transform .5s ease}
.js .rv.in{opacity:1;transform:none}

@media (max-width:940px){
  .split{grid-template-columns:minmax(0,1fr)}
  .side{position:static}
  .hero{grid-template-columns:1fr;min-height:0}
  .hero-copy{order:-1;align-items:flex-start;text-align:left;padding:clamp(22px,6vw,36px) clamp(16px,5vw,28px)}
  .hero-copy::after{right:auto;left:0;width:110px}
  .hero-desc{border-right:0;border-left:2px solid var(--violet);padding-right:0;padding-left:14px}
  .hero-frame{min-height:190px;max-height:240px;border-right:0;clip-path:none;border-top:1px solid var(--line)}
  .foot-cols{grid-template-columns:1fr 1fr}
  .foot-col--mark{display:none}
}
@media (max-width:560px){
  body{font-size:16px}
  .foot-cols{grid-template-columns:1fr}
  .cta-word{font-size:26px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
  .js .rv{opacity:1;transform:none}
  .glitch::before,.glitch::after{transform:none}
}

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