*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:#0d0d0d;color:#ece6ff;font-family:Inter,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;font-size:16.5px;line-height:1.72;-webkit-font-smoothing:antialiased;overflow-x:hidden}
body::after{content:"";position:fixed;inset:0;z-index:60;pointer-events:none;background:repeating-linear-gradient(180deg,rgba(255,255,255,.05) 0 1px,transparent 1px 3px);opacity:.6;mix-blend-mode:screen}
img{display:block;max-width:100%}
a{color:#ff8bf5}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid #ff00ff;outline-offset:3px}
p{margin:0}

/* ---------- 头部 ---------- */
.hud{position:sticky;top:0;z-index:50;background:rgba(9,8,13,.96);border-bottom:1px solid rgba(128,0,255,.45);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}
.hud::before{content:"";display:block;height:2px;background:linear-gradient(90deg,#8000ff,#ff00ff 45%,#8000ff)}
.hud-top{display:flex;align-items:center;justify-content:space-between;gap:12px;max-width:1180px;margin:0 auto;padding:12px 16px 4px}
.brand{display:inline-flex;align-items:center;gap:10px;min-height:44px;text-decoration:none;color:#fff;font-size:18px;font-weight:700;letter-spacing:.1em;text-shadow:0 0 14px rgba(255,0,255,.65),0 0 40px rgba(128,0,255,.5)}
.brand .mark{width:26px;height:26px;object-fit:contain;filter:drop-shadow(0 0 6px #ff00ff)}
.brand:hover{animation:glitch .42s steps(3) 1}
.hud-tag{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:13px;letter-spacing:.28em;color:#8b79b4}
.hud-bottom{display:flex;align-items:center;gap:10px;flex-wrap:wrap;max-width:1180px;margin:0 auto;padding:0 16px 10px}
.menu{flex:1 1 auto;min-width:0}
.menu p{display:flex;flex-wrap:wrap;gap:2px;margin:0;padding:0}
.menu p + p{border-left:1px solid rgba(255,0,255,.32);padding-left:6px;margin-left:2px}
.menu a{position:relative;display:inline-flex;align-items:center;min-height:44px;padding:8px 12px;color:#c3b2e4;text-decoration:none;font-size:16px;transition:color .18s,text-shadow .18s}
.menu a::after{content:"";position:absolute;left:12px;right:12px;bottom:5px;height:2px;background:#ff00ff;transform:scaleX(0);transform-origin:left;transition:transform .22s}
.menu a:hover,.menu a[aria-current]{color:#fff;text-shadow:0 0 12px rgba(255,0,255,.9)}
.menu a:hover::after,.menu a[aria-current]::after{transform:scaleX(1)}
.find{display:flex;align-items:stretch;flex:0 1 226px;min-width:150px;border:1px solid rgba(128,0,255,.55);background:#120f1c;-webkit-clip-path:polygon(0 0,100% 0,100% calc(100% - 9px),calc(100% - 9px) 100%,0 100%);clip-path:polygon(0 0,100% 0,100% calc(100% - 9px),calc(100% - 9px) 100%,0 100%)}
.find input{flex:1 1 auto;min-width:0;border:0;background:transparent;color:#f2eaff;font:400 16px/1.2 Inter,sans-serif;padding:10px 12px}
.find input::placeholder{color:#7a6c99}
.find button{border:0;background:#8000ff;color:#fff;font:600 16px/1 Inter,sans-serif;letter-spacing:.08em;padding:0 14px;min-height:44px;cursor:pointer;transition:background .18s}
.find button:hover{background:#ff00ff}

/* ---------- 首屏 ---------- */
.hero{position:relative;min-height:100svh;display:grid;align-content:end;justify-items:end;text-align:right;overflow:hidden;padding:clamp(96px,17vh,180px) 20px clamp(64px,11vh,120px);background:radial-gradient(120% 85% at 82% 8%,rgba(128,0,255,.42),transparent 62%),#0d0d0d;-webkit-clip-path:polygon(0 0,100% 0,100% 94%,0 100%);clip-path:polygon(0 0,100% 0,100% 94%,0 100%)}
.hero-media{position:absolute;inset:0;z-index:0}
.hero-media img{width:100%;height:100%;object-fit:cover;opacity:.42;filter:grayscale(.35) contrast(1.2) saturate(1.5);transform:scale(1.06)}
.hero::after{content:"";position:absolute;inset:0;z-index:0;background:linear-gradient(90deg,rgba(13,13,13,.94) 0%,rgba(13,13,13,.55) 55%,rgba(13,13,13,.8) 100%)}
.hero-band{position:absolute;left:-12%;right:-12%;bottom:24%;height:70px;z-index:0;transform:skewY(-4deg);background:linear-gradient(90deg,transparent,rgba(255,0,255,.55),rgba(128,0,255,.35),transparent);filter:blur(6px);opacity:.75}
.hero-copy{position:relative;z-index:2;max-width:min(780px,94vw)}
.eyebrow{margin:0 0 12px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:14px;letter-spacing:.34em;color:#ff8bf5;text-transform:none}
.hero h1{margin:0 0 16px;font-size:clamp(30px,6.6vw,58px);line-height:1.08;letter-spacing:-.015em;color:#fff;text-shadow:0 0 18px rgba(255,0,255,.6),0 0 52px rgba(128,0,255,.55)}
.lead{margin:0 0 26px 0;margin-left:auto;max-width:44ch;color:#d6c9f4;font-size:17px}
.hero-cta{margin:0}
.hero-cta a{display:inline-flex;align-items:center;min-height:48px;padding:13px 26px;color:#fff;text-decoration:none;font-weight:600;letter-spacing:.06em;border:1px solid #ff00ff;background:rgba(128,0,255,.18);-webkit-clip-path:polygon(0 0,100% 0,100% calc(100% - 10px),calc(100% - 10px) 100%,0 100%);clip-path:polygon(0 0,100% 0,100% calc(100% - 10px),calc(100% - 10px) 100%,0 100%);transition:background .2s,box-shadow .2s,text-shadow .2s}
.hero-cta a:hover{background:rgba(255,0,255,.28);box-shadow:0 0 26px rgba(255,0,255,.55);text-shadow:0 0 12px #fff}

/* ---------- 主区布局 ---------- */
.wrap{display:grid;grid-template-columns:206px minmax(0,1fr);gap:26px;max-width:1180px;margin:0 auto;padding:44px 16px 70px}
.rail{position:sticky;top:168px;align-self:start}
.rail small{display:block;margin:0 0 6px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:13px;letter-spacing:.3em;color:#ff00ff}
.rail h2{margin:0 0 14px;font-size:19px;letter-spacing:.06em;color:#fff}
.rail-list{list-style:none;margin:0;padding:0;border-left:1px solid rgba(128,0,255,.42)}
.rail-list a{display:flex;align-items:center;min-height:40px;padding:6px 0 6px 12px;margin-left:-1px;border-left:2px solid transparent;color:#b4a4d8;text-decoration:none;font-size:15.5px;transition:color .18s,border-color .18s,text-shadow .18s}
.rail-list a:hover{color:#fff;border-left-color:#ff00ff;text-shadow:0 0 10px rgba(255,0,255,.85)}

.panel{position:relative;min-width:0;padding:26px 22px 10px;border:1px solid rgba(128,0,255,.3);background:linear-gradient(180deg,rgba(21,15,34,.92),rgba(13,13,13,.94));-webkit-clip-path:polygon(0 0,100% 0,100% calc(100% - 20px),calc(100% - 20px) 100%,0 100%);clip-path:polygon(0 0,100% 0,100% calc(100% - 20px),calc(100% - 20px) 100%,0 100%)}

/* ---------- 正文 ---------- */
.doc > article{position:relative;padding:6px 0 26px;margin:0 0 28px;border-bottom:1px solid rgba(128,0,255,.18);scroll-margin-top:168px}
.doc > article::after{content:"";position:absolute;left:0;bottom:-1px;width:72px;height:2px;background:linear-gradient(90deg,#ff00ff,#8000ff)}
.doc > article:last-child{border-bottom:0;margin-bottom:6px}
.doc > article.hit{animation:flash 1.1s ease 1}
.doc small{display:block;margin:0 0 8px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:13px;letter-spacing:.28em;color:#ff8bf5}
.doc h2{margin:0 0 14px;font-size:clamp(21px,3.3vw,28px);line-height:1.26;letter-spacing:-.01em;color:#fff;text-shadow:0 0 16px rgba(128,0,255,.55)}
.doc h3{margin:24px 0 10px;font-size:19px;color:#f2e9ff}
.doc h4{margin:18px 0 8px;font-size:17px;color:#e2d6f8}
.doc p{margin:0 0 14px;max-width:72ch}
.doc ul,.doc ol{margin:0 0 16px;padding-left:22px}
.doc li{margin:0 0 8px}
.doc strong{color:#fff}
.doc em{color:#ffc2f8;font-style:normal}
.doc blockquote{margin:0 0 16px;padding:12px 16px;border-left:3px solid #ff00ff;background:rgba(128,0,255,.1);color:#e5d9fb}
.doc img{margin:0 0 16px;border:1px solid rgba(128,0,255,.45)}
.doc table{width:100%;margin:0 0 16px;border-collapse:collapse;font-size:16px}
.doc th,.doc td{padding:9px 10px;border:1px solid rgba(128,0,255,.3);text-align:left}
.doc th{background:rgba(128,0,255,.16);color:#fff}
.doc code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.94em;background:rgba(128,0,255,.18);padding:1px 5px;color:#ffc2f8}
.doc > article > section,.doc > article > figure{max-width:100%}

/* ---------- 页脚 ---------- */
.tail{margin-top:10px;border-top:1px solid rgba(255,0,255,.45);background:#0a0a0c;overflow:hidden}
.tail article{display:block;max-width:1180px;margin:0 auto;padding:0 16px}
.tail-brand{padding-top:30px;padding-bottom:6px}
.bigmark{margin:0;font-size:clamp(38px,12.5vw,132px);line-height:.92;font-weight:700;letter-spacing:-.02em;white-space:nowrap;color:transparent;-webkit-text-stroke:1px rgba(255,0,255,.7);text-shadow:0 0 46px rgba(128,0,255,.4)}
.tail-legal{padding-top:10px;padding-bottom:26px;border-top:1px solid rgba(128,0,255,.22);margin-top:8px}
.tail-legal p{margin:0;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:14px;letter-spacing:.16em;color:#8b7dab}

@keyframes glitch{
  0%{transform:translateX(0) skewX(0)}
  25%{transform:translateX(-2px) skewX(-7deg)}
  50%{transform:translateX(2px) skewX(6deg)}
  75%{transform:translateX(-1px) skewX(-3deg)}
  100%{transform:translateX(0) skewX(0)}
}
@keyframes flash{
  0%{box-shadow:inset 0 0 0 1px rgba(255,0,255,.9);background:rgba(255,0,255,.08)}
  100%{box-shadow:inset 0 0 0 1px rgba(255,0,255,0);background:transparent}
}

@media (max-width:900px){
  .wrap{grid-template-columns:minmax(0,1fr);gap:20px;padding-top:26px}
  .rail{position:static}
  .rail-list{display:flex;flex-wrap:wrap;gap:4px;border-left:0}
  .rail-list a{min-height:40px;padding:6px 12px;margin:0;border:1px solid rgba(128,0,255,.35);color:#c3b2e4}
  .rail-list a:hover{border-color:#ff00ff}
  .doc > article{scroll-margin-top:186px}
}
@media (max-width:620px){
  .hud-top{padding-top:10px}
  .brand{font-size:17px}
  .hud-tag{display:none}
  .hud-bottom{padding-bottom:8px}
  .find{flex:1 1 100%;order:3}
  .menu p + p{border-left:0;padding-left:0;margin-left:0}
  .menu a{padding:8px 10px}
  .hero{padding-top:clamp(88px,20vh,140px);-webkit-clip-path:polygon(0 0,100% 0,100% 96%,0 100%);clip-path:polygon(0 0,100% 0,100% 96%,0 100%)}
  .hero-band{height:52px;bottom:26%}
  .panel{padding:20px 15px 8px}
  .bigmark{-webkit-text-stroke-width:1px;white-space:normal}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .brand:hover{animation:none}
  .hero-media img{transform:none}
  .menu a::after{transition:none}
  .doc > article.hit{animation:none}
}

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