:root{
  --bg:#0B0F10;
  --neon:#C6FF3D;
  --rose:#FF3E8A;
  --fg:#E7F1EA;
  --soft:#CDDCD3;
  --dim:#84988F;
  --line:rgba(198,255,61,.18);
  --hair:rgba(255,255,255,.08);
  --glass:rgba(255,255,255,.05);
  --r:10px;
  --mono:'JetBrains Mono',ui-monospace,SFMono-Regular,Menlo,Consolas,'PingFang SC','Hiragino Sans GB','Microsoft YaHei',monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:24px;scroll-padding-bottom:112px;-webkit-text-size-adjust:100%;overflow-x:clip}
body{
  margin:0;
  padding-bottom:96px;
  background:var(--bg);
  color:var(--fg);
  font:400 16.5px/1.8 var(--mono);
  letter-spacing:.012em;
}
body::before{
  content:'';
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background:
    radial-gradient(58vw 56vh at 10% -12%,rgba(198,255,61,.12),transparent 62%),
    radial-gradient(52vw 52vh at 94% 6%,rgba(255,62,138,.12),transparent 64%);
}
img{display:block;max-width:100%;height:auto}
a{color:var(--neon);text-decoration:none}
a:hover{color:var(--rose)}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
:focus-visible{outline:2px solid var(--neon);outline-offset:2px}
.sr{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.skip{position:fixed;left:12px;top:-64px;z-index:95;padding:10px 14px;border-radius:var(--r);background:var(--neon);color:#0B0F10;transition:top .18s ease}
.skip:focus{top:12px}

/* 角落品牌 */
.corner{position:fixed;top:12px;left:12px;z-index:72}
.mark{
  display:grid;place-items:center;width:46px;height:46px;
  border:1px solid var(--line);border-radius:var(--r);
  background:rgba(11,15,16,.7);backdrop-filter:blur(10px);
}
.mark img{width:26px;height:26px;object-fit:contain}
.mark-glyph{font-size:18px;line-height:1;color:var(--neon)}
.mark:hover{border-color:var(--rose)}

/* 栅格 */
.wrap{
  position:relative;z-index:1;
  max-width:1180px;margin:0 auto;padding:58px 16px 0;
  display:grid;gap:26px 30px;
  grid-template-columns:minmax(0,1fr) 268px;
  grid-template-areas:"hero hero" "paper side";
}

/* 首屏 */
.hero{
  grid-area:hero;position:relative;overflow:hidden;
  min-height:70vh;display:grid;place-items:center;text-align:center;
  border:1px solid var(--line);border-radius:var(--r);
  background:linear-gradient(148deg,rgba(198,255,61,.14),rgba(255,62,138,.14) 56%,rgba(255,255,255,.035));
  clip-path:polygon(0 0,100% 0,100% 100%,0 93%);
}
.hero-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.4;filter:grayscale(.3) contrast(1.08)}
.hero::after{
  content:'';position:absolute;left:-8%;right:-8%;bottom:0;height:3px;
  background:linear-gradient(90deg,var(--neon),var(--rose));opacity:.85;
}
.hero-card{position:relative;z-index:2;padding:46px 18px 54px;max-width:780px}
.kicker{
  display:inline-block;margin:0 0 16px;padding:5px 13px;
  border:1px solid var(--rose);border-radius:999px;
  font-size:13px;letter-spacing:.24em;color:var(--rose);
  animation:rise .7s ease both;
}
.hero h1{
  margin:0;font-weight:500;line-height:1.14;letter-spacing:.01em;overflow-wrap:anywhere;
  font-size:clamp(2rem,6.4vw,4.15rem);
  background:linear-gradient(96deg,var(--neon),#ffffff 32%,var(--rose) 62%,var(--neon));
  background-size:240% 100%;
  -webkit-background-clip:text;background-clip:text;color:transparent;
  animation:rise .85s ease both,slideFill 9s linear infinite alternate;
}
.hero .lead{margin:18px auto 0;max-width:56ch;font-size:16px;color:var(--soft);animation:rise 1s .1s ease both}
.cue{display:inline-flex;gap:8px;align-items:center;margin:26px 0 0;font-size:13px;letter-spacing:.2em;color:var(--dim)}
@keyframes rise{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}
@keyframes slideFill{from{background-position:0 0}to{background-position:100% 0}}

/* 正文 */
.paper{grid-area:paper;min-width:0;padding-top:6px}
.doc{counter-reset:sec}
.doc > section{
  counter-increment:sec;
  padding:34px 0;
  border-top:1px dashed var(--hair);
  scroll-margin-top:72px;
}
.doc > section:first-child{border-top:0;padding-top:2px}
.doc > section:last-child{padding-bottom:6px}
.doc h2{
  margin:.1em 0 .1em;font-weight:500;line-height:1.35;color:#fff;
  font-size:clamp(1.4rem,3.6vw,1.95rem);letter-spacing:.01em;
}
.doc > section h2::before{
  content:counter(sec,decimal-leading-zero);
  display:inline-block;margin-right:.6em;
  font-size:.66em;letter-spacing:.12em;color:var(--rose);
  vertical-align:.16em;
}
.doc h3{margin:1.4em 0 .4em;font-size:1.15rem;font-weight:500;color:#fff}
.doc hr{height:2px;border:0;margin:12px 0 20px;background:linear-gradient(90deg,var(--neon),rgba(255,62,138,.55),transparent)}
.doc p{margin:0 0 1.05em;color:var(--soft)}
.doc a{text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.doc ul,.doc ol{margin:0 0 1.1em;padding-left:1.3em;color:var(--soft)}
.doc li{margin:.42em 0}
.doc li::marker{color:var(--rose)}
.doc blockquote{
  margin:1.4em 0;padding:14px 18px;color:#DFEAE3;
  background:var(--glass);border-left:3px solid var(--rose);
  border-radius:0 var(--r) var(--r) 0;
}
.doc img{border-radius:var(--r);margin:1.2em 0;border:1px solid var(--hair)}
.doc table{width:100%;margin:0 0 1.2em;border-collapse:collapse;font-size:15px}
.doc th,.doc td{border:1px solid var(--hair);padding:8px 10px;text-align:left;color:var(--soft)}
.doc th{color:#fff;background:rgba(255,255,255,.04)}
.doc code{font-size:.94em;color:var(--neon);background:rgba(198,255,61,.1);padding:.1em .35em;border-radius:6px}

/* 侧栏 */
.side{
  grid-area:side;min-width:0;position:sticky;top:76px;align-self:start;
  padding:18px 14px;border:1px solid var(--line);border-radius:var(--r);
  background:var(--glass);backdrop-filter:blur(12px);
}
.side h2{margin:0 0 8px;font-size:14px;font-weight:500;letter-spacing:.22em;color:var(--neon)}
.side hr{height:2px;border:0;margin:0 0 10px;background:linear-gradient(90deg,var(--rose),transparent)}
.side dl{margin:0;display:grid;gap:2px}
.side dd{margin:0}
.side a{
  display:block;padding:9px 9px;border-radius:8px;
  border-left:2px solid transparent;font-size:14.5px;color:var(--soft);
}
.side a:hover{background:rgba(198,255,61,.1);border-left-color:var(--neon);color:#fff}

/* 页脚 */
.foot{
  position:relative;z-index:1;max-width:1180px;margin:56px auto 0;
  padding:34px 16px 28px;border-top:1px solid var(--line);
  display:grid;gap:26px;
}
.foot-top{display:grid;gap:20px;grid-template-columns:1fr minmax(0,340px);align-items:center}
.foot-name{margin:0;font-size:20px;letter-spacing:.08em;color:#fff}
.foot-link{margin:6px 0 0}
.foot-link a{display:inline-block;padding:10px 0;font-size:14.5px;letter-spacing:.14em}
.sub{display:flex;gap:8px}
.sub input{
  flex:1;min-width:0;padding:12px;font:inherit;font-size:15px;
  color:var(--fg);background:rgba(255,255,255,.045);
  border:1px solid var(--line);border-radius:var(--r);
}
.sub input::placeholder{color:var(--dim)}
.sub button{
  padding:12px 18px;border-radius:var(--r);
  background:var(--neon);color:#0B0F10;font-size:14.5px;letter-spacing:.12em;
}
.sub button:hover{background:var(--rose);color:#0B0F10}
.foot-cols{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.foot-cols dl{margin:0}
.foot-cols dt{margin:0 0 4px;font-size:12.5px;letter-spacing:.26em;color:var(--rose)}
.foot-cols dd{margin:0}
.foot-cols a{display:block;padding:10px 0;font-size:14.5px;color:var(--soft)}
.foot-cols a:hover{color:var(--neon)}
.foot-base{border-top:1px solid var(--hair);padding-top:14px;text-align:center;font-size:13px;color:var(--dim)}
.foot-base p{margin:0}

/* 底部固定条 */
.bar{
  position:fixed;left:0;right:0;bottom:0;z-index:80;
  display:flex;justify-content:center;gap:8px;
  padding:10px 12px calc(10px + env(safe-area-inset-bottom,0px));
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(11,15,16,.2),rgba(11,15,16,.94));
  backdrop-filter:blur(12px);
}
.bar-btn{
  display:inline-flex;align-items:center;justify-content:center;min-height:44px;
  padding:0 18px;border:1px solid var(--line);border-radius:999px;
  background:rgba(255,255,255,.05);font-size:14px;letter-spacing:.1em;color:var(--fg);
}
.bar-btn:hover{color:var(--neon);border-color:var(--neon)}
.bar-btn[aria-expanded="true"]{background:var(--neon);color:#0B0F10;border-color:var(--neon)}

/* 全屏菜单 */
.overlay{
  position:fixed;inset:0;z-index:90;overflow-y:auto;
  padding:20px 18px calc(110px + env(safe-area-inset-bottom,0px));
  background:rgba(6,9,10,.95);backdrop-filter:blur(6px);
}
.overlay[hidden]{display:none}
.overlay-close{
  display:block;margin-left:auto;min-height:44px;padding:0 18px;
  border:1px solid var(--line);border-radius:999px;font-size:14px;letter-spacing:.1em;
}
.overlay-close:hover{color:var(--rose);border-color:var(--rose)}
.overlay nav{margin-top:16px}
.overlay ol{list-style:none;margin:0;padding:0;display:grid;gap:4px}
.overlay li{opacity:0;transform:translateY(10px)}
.overlay:not([hidden]) li{animation:rise .45s ease both;animation-delay:calc(var(--i) * 45ms)}
.overlay li a{
  display:flex;gap:14px;align-items:baseline;
  padding:13px 6px;border-bottom:1px solid var(--hair);
  font-size:clamp(1.1rem,4.6vw,1.55rem);color:#fff;
}
.overlay li a:hover{color:var(--neon)}
.overlay .idx{font-size:12px;letter-spacing:.24em;color:var(--rose)}

/* 滚动显现 */
[data-rv].rv{opacity:0;transform:translateY(16px);transition:opacity .6s ease,transform .6s ease}
[data-rv].rv.on{opacity:1;transform:none}

@media (max-width:900px){
  .wrap{grid-template-columns:minmax(0,1fr);grid-template-areas:"hero" "paper" "side";gap:20px;padding-top:54px}
  .side{position:static}
  .hero{min-height:62vh}
  .foot-top{grid-template-columns:1fr}
  .foot-cols{grid-template-columns:1fr 1fr}
  body{padding-bottom:104px}
}
@media (max-width:520px){
  .hero-card{padding:32px 14px 44px}
  .hero{clip-path:polygon(0 0,100% 0,100% 100%,0 96%)}
  .foot-cols{grid-template-columns:1fr 1fr;gap:12px}
  .bar-btn{padding:0 15px;font-size:13.5px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
  [data-rv].rv,.overlay li{opacity:1;transform:none}
}

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