@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;700&family=Space+Grotesk:wght@400;500;600;700&display=swap');

:root{
  --ink:#0B0B0F;
  --lime:#E6FF3D;
  --rose:#FF3D81;
  --paper:#F1F2F5;
  --soft:#D9DCE3;
  --dim:#9AA0AD;
  --line:rgba(230,255,61,.28);
  --glass:rgba(255,255,255,.055);
  --font:"Space Grotesk","DM Sans",system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--ink);
  color:var(--paper);
  font-family:var(--font);
  font-size:17px;
  line-height:1.68;
  letter-spacing:.01em;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  background:
    radial-gradient(46vw 40vw at 88% -6%,rgba(255,61,129,.20),transparent 68%),
    radial-gradient(52vw 46vw at 4% 12%,rgba(230,255,61,.13),transparent 70%),
    radial-gradient(40vw 40vw at 70% 96%,rgba(255,61,129,.10),transparent 72%);
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
p{margin:0}
menu{margin:0;padding:0;list-style:none}
hr{height:1px;border:0;margin:0;background:linear-gradient(90deg,var(--lime),rgba(230,255,61,0));}

/* ---------- 顶栏 ---------- */
.topbar{
  position:sticky;
  top:0;
  z-index:80;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding:10px 16px;
  background:rgba(11,11,15,.74);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(230,255,61,.18);
}
.brand{display:inline-flex;align-items:center;min-height:44px;padding:0 4px}
.logo{height:28px;width:auto;filter:drop-shadow(0 0 8px rgba(230,255,61,.45))}
.logo-word{
  font-size:20px;
  font-weight:700;
  letter-spacing:-.03em;
  color:var(--lime);
  text-shadow:0 0 16px rgba(230,255,61,.4);
}
.bar-tools{display:flex;align-items:center;gap:8px}

.cta{
  display:inline-flex;
  align-items:center;
  min-height:44px;
  padding:0 15px;
  font-size:14px;
  font-weight:700;
  letter-spacing:.04em;
  color:#18040B;
  background:var(--rose);
  clip-path:polygon(0 0,100% 0,100% 68%,90% 100%,0 100%);
  transition:transform .18s ease,background .18s ease;
}
.cta:hover,.cta:focus-visible{background:var(--lime);transform:translateY(-2px)}

.drawer{position:relative}
.drawer>summary{
  position:relative;
  z-index:2;
  list-style:none;
  display:inline-flex;
  align-items:center;
  gap:10px;
  min-height:44px;
  padding:0 13px;
  font-size:14px;
  letter-spacing:.14em;
  color:var(--lime);
  border:1px solid var(--line);
  background:var(--glass);
  cursor:pointer;
  transition:border-color .18s ease,background .18s ease;
}
.drawer>summary::-webkit-details-marker{display:none}
.drawer>summary::after{
  content:"";
  width:14px;
  height:1px;
  background:currentColor;
  box-shadow:0 4px 0 currentColor,0 -4px 0 currentColor;
}
.drawer>summary:hover{background:rgba(230,255,61,.14)}
.drawer[open]>summary{background:var(--lime);color:#10120A;border-color:var(--lime)}

.drawer-menu{
  position:fixed;
  inset:0;
  z-index:1;
  display:flex;
  flex-direction:column;
  justify-content:center;
  gap:0;
  padding:96px 22px 48px;
  overflow:auto;
  background:rgba(9,9,13,.95);
  backdrop-filter:blur(20px);
  -webkit-backdrop-filter:blur(20px);
}
.drawer-menu li{border-bottom:1px solid rgba(255,255,255,.09)}
.drawer-menu a{
  display:block;
  padding:14px 2px;
  font-size:clamp(1.5rem,7vw,2.4rem);
  font-weight:600;
  letter-spacing:-.03em;
  line-height:1.2;
  transition:color .18s ease,padding-left .18s ease;
}
.drawer-menu a:hover{color:var(--lime);padding-left:12px}

/* ---------- 英雄 ---------- */
.hero{
  position:relative;
  display:flex;
  flex-direction:column;
  gap:14px;
  min-height:45vh;
  padding:24px 18px 0;
  text-align:right;
  border-bottom:1px solid rgba(255,61,129,.32);
}
.hero::after{
  content:"";
  position:absolute;
  left:0;
  bottom:-1px;
  width:46%;
  height:3px;
  background:linear-gradient(90deg,var(--rose),var(--lime));
}
.kicker{
  align-self:flex-end;
  padding:6px 11px;
  font-size:13px;
  letter-spacing:.24em;
  color:var(--lime);
  border:1px solid var(--line);
  background:var(--glass);
  backdrop-filter:blur(8px);
}
.hero-title{
  margin:0;
  font-size:clamp(2.4rem,9vw,6rem);
  font-weight:700;
  line-height:.99;
  letter-spacing:-.045em;
  background:linear-gradient(102deg,var(--lime) 6%,#FFFFFF 46%,var(--rose) 96%);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
  text-wrap:balance;
}
.hero-title .ch{
  display:inline-block;
  animation:chIn .62s cubic-bezier(.2,.8,.2,1) both;
}
@keyframes chIn{
  from{opacity:0;transform:translateY(.55em) rotate(5deg)}
  to{opacity:1;transform:none}
}
.hero-lead{
  max-width:62ch;
  margin-left:auto;
  font-size:15px;
  line-height:1.6;
  color:var(--dim);
}
.hero-fig{
  position:relative;
  flex:1;
  min-height:132px;
  margin:0;
  background:
    linear-gradient(118deg,rgba(230,255,61,.2),rgba(255,61,129,.22)),
    repeating-linear-gradient(90deg,rgba(255,255,255,.07) 0 1px,transparent 1px 16px);
  clip-path:polygon(0 16%,100% 0,100% 100%,0 100%);
}
.hero-img{width:100%;height:100%;max-height:38vh;object-fit:cover;filter:contrast(1.06) saturate(1.08)}

/* ---------- 主体 ---------- */
.deck{
  display:grid;
  grid-template-columns:minmax(0,1fr) 276px;
  gap:26px;
  align-items:start;
  padding:34px 18px 64px;
}
.article>section{
  margin:0 0 22px;
  padding:22px 18px;
  border:1px solid rgba(255,255,255,.1);
  background:var(--glass);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  scroll-margin-top:92px;
}
.article>section:last-child{margin-bottom:0}
.article h2{
  margin:0 0 8px;
  font-size:clamp(1.32rem,4vw,1.9rem);
  font-weight:700;
  line-height:1.2;
  letter-spacing:-.03em;
  color:#fff;
}
.article h3{
  margin:22px 0 8px;
  font-size:1.08rem;
  letter-spacing:-.01em;
  color:var(--lime);
}
.article hr{margin:0 0 14px}
.article p{margin:0 0 14px;color:var(--soft)}
.article p:last-child{margin-bottom:0}
.article a{color:var(--lime);text-decoration:underline;text-underline-offset:3px}
.article a:hover{color:var(--rose)}
.article ul,.article ol{margin:0 0 14px;padding-left:1.25em;color:var(--soft)}
.article li{margin-bottom:8px}
.article li::marker{color:var(--rose)}
.article strong{color:#fff}
.article figure{margin:18px 0}
.article figure img{border:1px solid var(--line)}
.article blockquote{
  margin:18px 0;
  padding:12px 16px;
  border-left:2px solid var(--rose);
  background:rgba(255,61,129,.09);
  color:var(--soft);
}

/* ---------- 侧栏 ---------- */
.rail{
  position:sticky;
  top:86px;
  padding:18px 16px 20px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.045);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
}
.rail-title{
  margin:0 0 10px;
  font-size:13px;
  font-weight:600;
  letter-spacing:.26em;
  color:var(--lime);
}
.rail hr{margin-bottom:12px}
.rail-list a{
  display:block;
  padding:11px 4px;
  font-size:14px;
  color:var(--dim);
  border-bottom:1px dashed rgba(255,255,255,.1);
  transition:color .18s ease,padding-left .18s ease;
}
.rail-list li:last-child a{border-bottom:0}
.rail-list a:hover{color:var(--lime);padding-left:10px}

/* ---------- 页脚 ---------- */
.foot{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:22px;
  padding:42px 18px 22px;
  border-top:1px solid var(--line);
  background:rgba(255,255,255,.025);
}
.fcol{min-width:0}
.fcol-mark{align-self:start}
.fmark{
  font-size:22px;
  font-weight:700;
  letter-spacing:-.03em;
  color:var(--lime);
}
.ftitle{
  margin:0 0 8px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.24em;
  color:var(--rose);
}
.fcol hr{margin-bottom:10px;background:linear-gradient(90deg,var(--rose),rgba(255,61,129,0))}
.flist a{
  display:block;
  padding:9px 0;
  font-size:14px;
  color:var(--dim);
  transition:color .18s ease;
}
.flist a:hover{color:var(--lime)}
.ftag{font-size:14px;color:var(--dim);line-height:1.55;padding-top:2px}
.foot-base{
  grid-column:1/-1;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-top:8px;
  padding-top:14px;
  border-top:1px solid rgba(255,255,255,.09);
  font-size:13px;
  color:var(--dim);
}
.totop{
  display:inline-flex;
  align-items:center;
  min-height:40px;
  padding:0 13px;
  font-size:13px;
  color:var(--lime);
  border:1px solid var(--line);
  transition:background .18s ease,color .18s ease;
}
.totop:hover{background:var(--lime);color:#10120A}

/* ---------- 滚动显现 ---------- */
.js .reveal{opacity:0;transform:translateY(20px)}
.js .reveal.is-in{
  opacity:1;
  transform:none;
  transition:opacity .62s ease,transform .62s cubic-bezier(.2,.75,.2,1);
}

/* ---------- 断点 ---------- */
@media (max-width:900px){
  .deck{grid-template-columns:minmax(0,1fr);gap:22px;padding-top:28px}
  .rail{position:static;order:2}
  .foot{grid-template-columns:1fr 1fr}
}
@media (max-width:520px){
  body{font-size:16px}
  .topbar{padding:8px 12px}
  .cta{padding:0 12px;font-size:13px}
  .drawer>summary{padding:0 11px;letter-spacing:.1em}
  .hero{padding:20px 14px 0}
  .deck{padding:26px 14px 56px}
  .article>section{padding:18px 14px}
  .foot{padding:34px 14px 20px;gap:18px}
  .foot-base{flex-wrap:wrap}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .js .reveal{opacity:1;transform:none;transition:none}
  .hero-title .ch{animation:none}
  .cta:hover{transform:none}
}

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