:root{
  --neon:#69ff69;
  --cyan:#00ffff;
  --ink:#172617;
  --deep:#08120a;
  --paper:#eafff0;
  --hdr:60px;
  --chrome:linear-gradient(180deg,#ffffff 0%,#d8ffe4 28%,#69ff69 47%,#0f3a1e 53%,#b6f5c6 66%,#ffffff 100%);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;overflow-x:hidden}
body{
  margin:0;
  max-width:100%;
  background:
    radial-gradient(920px 620px at 88% -8%,rgba(0,255,255,.20),transparent 62%),
    radial-gradient(760px 560px at -6% 26%,rgba(105,255,105,.18),transparent 60%),
    var(--deep);
  color:var(--paper);
  font-family:Inter,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  font-size:17px;
  line-height:1.7;
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto}
a{color:var(--cyan);text-underline-offset:3px}
h1,h2,h3{
  font-family:Calistoga,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-weight:700;line-height:1.14;margin:0;letter-spacing:.01em;
  overflow-wrap:anywhere;
}
::selection{background:var(--neon);color:#08120a}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px}

/* ---------- 顶部：品牌 + 遮罩菜单 + 粘性锚点条 ---------- */
.top{
  position:sticky;top:0;z-index:90;
  background:#0a150c;
  border-bottom:1px solid rgba(105,255,105,.3);
  box-shadow:0 8px 26px rgba(0,0,0,.5);
}
.hd{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  max-width:1280px;margin:0 auto;padding:6px 14px;min-width:0;
}
.brand{
  display:flex;align-items:center;gap:9px;min-height:44px;min-width:0;
  overflow:hidden;
  text-decoration:none;color:var(--neon);
  font-family:Calistoga,"PingFang SC",sans-serif;font-weight:700;font-size:19px;
  text-shadow:0 0 14px rgba(105,255,105,.6);
  max-width:58vw;
}
.brand-tx{min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.brand-mark{
  flex:0 0 auto;width:24px;height:24px;border-radius:50%;
  display:grid;place-items:center;font-size:12px;color:#08150c;
  background:var(--chrome);box-shadow:0 0 16px rgba(0,255,255,.75);
  object-fit:cover;
}
.hd-r{display:flex;align-items:center;gap:8px;flex:0 0 auto}
.cta-contact{
  display:inline-flex;align-items:center;min-height:44px;padding:0 15px;
  text-decoration:none;font-weight:700;font-size:15px;color:#0b1a0e;white-space:nowrap;
  background:linear-gradient(180deg,#f0fff5,#69ff69 52%,#1f9b46);
  box-shadow:0 0 18px rgba(105,255,105,.5),inset 0 0 0 1px rgba(0,0,0,.28);
}
.cta-contact:hover{filter:brightness(1.1)}
.menu{position:relative}
.menu>summary{
  list-style:none;cursor:pointer;display:inline-flex;align-items:center;gap:9px;
  min-height:44px;padding:0 14px;font-size:15px;font-weight:600;white-space:nowrap;
  color:var(--cyan);background:rgba(0,255,255,.1);
  box-shadow:inset 0 0 0 1px rgba(0,255,255,.55);
}
.menu>summary::-webkit-details-marker{display:none}
.bars{width:18px;height:2px;background:currentColor;box-shadow:0 -6px 0 currentColor,0 6px 0 currentColor}
.menu[open]>summary{
  position:relative;z-index:201;
  background:var(--cyan);color:#07140c;
  box-shadow:0 0 22px rgba(0,255,255,.8);
}
.menu[open]>summary .bars{background:transparent;box-shadow:none;position:relative}
.menu[open]>summary .bars::before,
.menu[open]>summary .bars::after{
  content:"";position:absolute;left:0;top:0;width:18px;height:2px;background:#07140c;
}
.menu[open]>summary .bars::before{transform:rotate(45deg)}
.menu[open]>summary .bars::after{transform:rotate(-45deg)}
.menu[open]>menu{
  position:fixed;inset:0;z-index:200;margin:0;padding:88px 18px 28px;
  list-style:none;display:flex;flex-direction:column;gap:2px;overflow:auto;
  background:
    radial-gradient(680px 460px at 84% 4%,rgba(0,255,255,.3),transparent 62%),
    radial-gradient(700px 520px at 4% 96%,rgba(105,255,105,.24),transparent 62%),
    linear-gradient(158deg,#08130a 0%,#12301c 56%,#04323a 100%);
}
.menu[open]>menu li{border-bottom:1px solid rgba(105,255,105,.22)}
.menu[open]>menu a{
  display:flex;align-items:center;min-height:56px;padding:8px 10px;
  text-decoration:none;color:#eafff0;
  font-family:Calistoga,"PingFang SC",sans-serif;font-weight:700;
  font-size:clamp(20px,5.4vw,30px);
}
.menu[open]>menu a:hover,.menu[open]>menu a:focus{color:var(--neon);text-shadow:0 0 18px rgba(105,255,105,.8)}
.railbar{
  display:flex;overflow-x:auto;scrollbar-width:none;max-width:100%;
  border-top:1px solid rgba(105,255,105,.16);
  background:rgba(0,255,255,.04);
}
.railbar::-webkit-scrollbar{height:0}
.railbar a{
  flex:0 0 auto;display:inline-flex;align-items:center;min-height:44px;padding:0 13px;
  font-size:14px;text-decoration:none;color:#b6f0c4;
  border-right:1px solid rgba(105,255,105,.14);white-space:nowrap;
}
.railbar a:hover,.railbar a.on{background:var(--neon);color:#08150c;font-weight:600}

/* ---------- 首屏 ---------- */
.hero{
  position:relative;display:grid;place-items:center;overflow:hidden;
  min-height:calc(100svh - var(--hdr) - 44px);
  padding:56px 18px 96px;
  border-radius:0 0 46% 46% / 0 0 11% 11%;
  background:linear-gradient(150deg,#0d2013,#0a2a30 60%,#123a20);
}
.hero-fig{position:absolute;inset:0;margin:0;z-index:0;overflow:hidden}
.hero-fig img{
  width:100%;height:100%;object-fit:cover;
  transform:scale(1.12);filter:saturate(1.35) contrast(1.08);
  will-change:transform;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(8,18,10,.6),rgba(8,18,10,.22) 46%,rgba(8,18,10,.94));
}
.hero-in{position:relative;z-index:1;text-align:center;max-width:min(16em,100%)}
.hero h1{
  font-size:clamp(36px,9.4vw,88px);
  background:var(--chrome);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  filter:drop-shadow(0 0 22px rgba(105,255,105,.55)) drop-shadow(0 3px 0 rgba(0,0,0,.55));
}
.hero-go{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:48px;margin-top:26px;padding:0 34px;
  text-decoration:none;font-weight:700;letter-spacing:.16em;color:#07140c;
  background:linear-gradient(180deg,#ffffff,#00ffff 46%,#009a9a);
  box-shadow:0 0 26px rgba(0,255,255,.65),inset 0 1px 0 #fff;
}
.hero-go:hover{filter:brightness(1.08)}

/* ---------- 正文骨架：左 aside + 右正文 ---------- */
.wrap{
  max-width:1280px;margin:0 auto;
  padding:44px 16px 20px;
  display:grid;grid-template-columns:250px minmax(0,1fr);gap:36px;align-items:start;
}
.side{
  position:sticky;top:calc(var(--hdr) + 56px);
  min-width:0;
  padding:18px 16px 20px;
  background:linear-gradient(180deg,#122a1a,#0b1a11);
  box-shadow:inset 0 0 0 1px rgba(105,255,105,.26);
}
.eyebrow{
  display:block;font-size:12px;letter-spacing:.3em;color:var(--cyan);
  margin-bottom:6px;
}
.side-h{font-size:23px;color:#ffffff;text-shadow:0 0 16px rgba(0,255,255,.55)}
.side-list{list-style:none;margin:14px 0 0;padding:0;min-width:0}
.side-list a{
  display:flex;align-items:center;gap:10px;min-height:44px;padding:6px 4px;
  text-decoration:none;color:#cdf6d8;font-size:15px;line-height:1.4;
  border-top:1px solid rgba(105,255,105,.16);
}
.side-list a:hover{color:var(--neon)}
.side-list .num{
  flex:0 0 auto;width:24px;height:24px;display:grid;place-items:center;
  font-family:"JetBrains Mono",ui-monospace,monospace;font-size:12px;
  color:#08150c;background:var(--chrome);border-radius:50%;
}

/* ---------- 正文块 ---------- */
.prose{min-width:0;max-width:100%;overflow-x:auto;overflow-y:visible}
.prose>article{
  position:relative;margin:0 0 26px;padding:30px 22px 26px;
  background:rgba(255,255,255,.045);
  transition:opacity .55s ease,transform .55s ease;
}
.prose>article:nth-of-type(odd){background:rgba(0,255,255,.07)}
.prose>article::before{
  content:"";position:absolute;left:0;top:0;height:3px;width:100%;
  background:linear-gradient(90deg,var(--neon),var(--cyan) 55%,transparent);
}
html.js .prose>article:not(.in){opacity:0;transform:translateY(16px)}
.prose article[id]{scroll-margin-top:calc(var(--hdr) + 64px)}
.prose>*:first-child{margin-top:0}
.prose small{
  display:block;font-size:12px;letter-spacing:.28em;color:var(--cyan);margin-bottom:8px;
}
.prose h2{
  font-size:clamp(25px,4.6vw,40px);color:#ffffff;
  text-shadow:0 0 20px rgba(105,255,105,.5);margin-bottom:16px;
}
.prose h3{font-size:clamp(19px,3vw,25px);color:var(--neon);margin:24px 0 10px}
.prose p{margin:0 0 14px;font-size:17px;line-height:1.78;color:#dffbe6;overflow-wrap:anywhere}
.prose ul,.prose ol{margin:0 0 16px;padding-left:22px}
.prose li{margin:0 0 8px;line-height:1.7;overflow-wrap:anywhere}
.prose li::marker{color:var(--neon)}
.prose strong{color:#ffffff}
.prose a{color:var(--neon);text-decoration-color:rgba(105,255,105,.55);overflow-wrap:anywhere}
.prose a:hover{color:#ffffff;background:rgba(105,255,105,.16)}
.prose img{margin:18px 0;width:100%;max-width:100%;height:auto;box-shadow:0 0 0 1px rgba(0,255,255,.35),0 14px 34px rgba(0,0,0,.5)}
.prose figure{margin:18px 0}
.prose blockquote{
  margin:18px 0;padding:14px 18px;background:rgba(0,255,255,.1);
  font-size:16px;color:#c9fbff;
}
.prose blockquote p:last-child{margin-bottom:0}
.prose code{
  font-family:"JetBrains Mono",ui-monospace,monospace;font-size:14px;
  background:rgba(0,255,255,.14);padding:1px 6px;overflow-wrap:anywhere;
}
.prose pre{
  max-width:100%;overflow-x:auto;margin:16px 0;padding:12px 14px;
  background:rgba(0,255,255,.1);
}
.prose pre code{background:none;padding:0;white-space:pre}
.prose table{
  width:100%;max-width:100%;border-collapse:collapse;margin:16px 0;font-size:16px;
}
.prose th,.prose td{padding:9px 10px;text-align:left;border-bottom:1px solid rgba(105,255,105,.24);overflow-wrap:anywhere}
.prose th{color:var(--cyan);font-weight:600}
.prose iframe{max-width:100%;width:100%;border:0}
.prose hr{border:0;height:2px;background:linear-gradient(90deg,var(--neon),transparent);margin:22px 0}

/* ---------- 页脚 ---------- */
.foot{
  max-width:1280px;margin:34px auto 0;padding:0 16px 34px;
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;align-items:start;
}
.foot p{margin:0;font-size:15px;color:#c6f2d2;line-height:1.6;min-width:0;overflow-wrap:anywhere}
.foot-brand{
  font-family:Calistoga,"PingFang SC",sans-serif;font-weight:700;font-size:18px;color:var(--neon);
  text-shadow:0 0 14px rgba(105,255,105,.55);
}
.foot-host{font-family:"JetBrains Mono",ui-monospace,monospace;font-size:13px;color:#8fd8a4}
.foot-link a{display:inline-flex;align-items:center;min-height:44px;text-decoration:none;color:var(--cyan)}
.foot-link a:hover{color:var(--neon)}
.foot-cta{
  grid-column:1/-1;margin:0 0 18px !important;
  background:linear-gradient(120deg,#69ff69,#00ffff 62%,#69ff69);
  box-shadow:0 0 34px rgba(0,255,255,.4);
}
.foot-cta a{
  display:flex;align-items:center;justify-content:center;
  min-height:clamp(96px,18vw,168px);padding:10px;
  text-decoration:none;color:#06140b;
  font-family:Calistoga,"PingFang SC",sans-serif;font-weight:700;
  font-size:clamp(34px,8.6vw,74px);letter-spacing:.06em;
}
.foot-cta a:hover{filter:brightness(1.07)}
.foot-copy{
  grid-column:1/-1;display:block;text-align:center;margin-top:8px;
  font-size:13px;color:#82c793;
}

/* ---------- 窄屏 ---------- */
@media (max-width:860px){
  :root{--hdr:56px}
  .wrap{grid-template-columns:minmax(0,1fr);gap:22px;padding-top:26px}
  .side{position:static;width:100%;max-width:100%}
  .side-list{
    display:flex;gap:8px;overflow-x:auto;margin-top:10px;padding-bottom:2px;
    scrollbar-width:none;
  }
  .side-list::-webkit-scrollbar{height:0}
  .side-list li{flex:0 0 auto}
  .side-list a{
    border-top:0;background:rgba(105,255,105,.1);padding:0 12px;min-height:44px;
    box-shadow:inset 0 0 0 1px rgba(105,255,105,.28);white-space:nowrap;
  }
  .prose>article{padding:24px 16px 20px}
  .foot{grid-template-columns:repeat(2,minmax(0,1fr))}
  .brand{font-size:17px;max-width:46vw}
}
@media (max-width:520px){
  body{font-size:16px}
  .hd{padding:6px 10px;gap:6px}
  .hd-r{gap:6px}
  .cta-contact{padding:0 10px;font-size:14px}
  .menu>summary{padding:0 10px;gap:7px;font-size:14px}
  .brand{font-size:16px;max-width:44vw}
  .hero{padding:40px 16px 84px;min-height:calc(88svh - var(--hdr))}
  .menu[open]>menu{padding-top:78px}
  .prose p{font-size:16px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  html.js .prose>article:not(.in){opacity:1;transform:none}
  .hero-fig img{transform:none}
}

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