@import url('https://fonts.googleapis.com/css2?family=Atkinson+Hyperlegible:wght@400;700&family=Crimson+Pro:wght@400;500;600;700&display=swap');

:root{
  --red:#ff0000;
  --pink:#ff006e;
  --ink:#1a1a2e;
  --bg:#08040f;
  --text:#f4ebf7;
  --dim:#c3b2cd;
  --line:rgba(255,0,110,.34);
  --ui:'Atkinson Hyperlegible',system-ui,-apple-system,'PingFang SC','Microsoft YaHei',sans-serif;
  --serif:'Crimson Pro','Songti SC','Noto Serif SC',Georgia,serif;
  --dock-h:72px;
}

*,*::before,*::after{box-sizing:border-box}

html{
  scroll-behavior:smooth;
  scroll-padding-bottom:calc(var(--dock-h) + 20px);
  -webkit-text-size-adjust:100%;
}

body{
  margin:0;
  background:var(--bg);
  background-image:
    radial-gradient(70% 50% at 80% 0%,rgba(255,0,110,.14),transparent 70%),
    radial-gradient(60% 40% at 10% 30%,rgba(255,0,0,.10),transparent 70%);
  color:var(--text);
  font-family:var(--serif);
  font-size:17px;
  line-height:1.75;
  overflow-x:hidden;
  padding-bottom:calc(var(--dock-h) + 22px);
}

.scan{
  position:fixed;
  inset:0;
  z-index:70;
  pointer-events:none;
  background:repeating-linear-gradient(to bottom,rgba(255,255,255,.05) 0 1px,transparent 1px 3px);
  opacity:.55;
  mix-blend-mode:screen;
}

img{max-width:100%}

/* ---------- 底部胶囊导航 ---------- */
.dock{
  position:fixed;
  left:0;right:0;bottom:0;
  z-index:90;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(26,26,46,.94),rgba(8,4,15,.99));
  box-shadow:0 -10px 34px rgba(255,0,110,.18);
  -webkit-backdrop-filter:blur(7px);
  backdrop-filter:blur(7px);
}

.dock-in{
  max-width:1200px;
  margin:0 auto;
  padding:9px 10px;
}

.dock-nav{
  display:flex;
  align-items:center;
  gap:8px;
  overflow-x:auto;
  overscroll-behavior-x:contain;
  scrollbar-width:none;
  padding:2px 1px;
}

.dock-nav::-webkit-scrollbar{display:none}

.dock-side{
  display:flex;
  align-items:center;
  gap:8px;
  margin:0;
  flex:0 0 auto;
}

.side-a{margin-left:auto}
.side-b{margin-right:auto}

.pill{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:40px;
  padding:6px 14px;
  border:1px solid rgba(255,0,110,.48);
  border-radius:999px;
  color:var(--text);
  text-decoration:none;
  font-family:var(--ui);
  font-size:16px;
  line-height:1.25;
  white-space:nowrap;
  letter-spacing:.02em;
  transition:background .2s,border-color .2s,box-shadow .2s,color .2s;
}

.pill:hover,.pill:focus-visible{
  background:rgba(255,0,110,.18);
  border-color:var(--pink);
  box-shadow:0 0 16px rgba(255,0,110,.55);
  color:#fff;
  outline:none;
}

.pill.contact{
  border-color:var(--red);
  background:rgba(255,0,0,.16);
  color:#fff;
}

.brand{
  display:inline-flex;
  align-items:center;
  gap:8px;
  flex:0 0 auto;
  min-height:40px;
  padding:6px 12px;
  text-decoration:none;
  color:#fff;
  font-family:var(--ui);
  font-size:17px;
  font-weight:700;
  letter-spacing:.1em;
  text-shadow:0 0 10px var(--pink),0 0 24px rgba(255,0,0,.65);
}

.mark{
  width:9px;height:9px;
  background:var(--red);
  transform:rotate(45deg);
  box-shadow:0 0 12px var(--red);
}

/* ---------- 首屏 ---------- */
.hero{
  position:relative;
  min-height:45vh;
  display:grid;
  place-items:center;
  overflow:hidden;
  isolation:isolate;
  border-bottom:2px solid rgba(255,0,110,.5);
}

.hero-fig{
  position:absolute;
  inset:0;
  margin:0;
  z-index:0;
  background:linear-gradient(135deg,#1a1a2e 0%,#2b0718 55%,#400018 100%);
}

.hero-fig img{
  width:100%;
  height:100%;
  object-fit:cover;
  filter:grayscale(.15) contrast(1.15) saturate(1.25);
}

.hero::before{
  content:"";
  position:absolute;
  inset:0;
  z-index:1;
  background:
    radial-gradient(65% 70% at 50% 42%,rgba(255,0,0,.30),transparent 72%),
    linear-gradient(180deg,rgba(8,4,15,.5),rgba(8,4,15,.94));
}

.hero-txt{
  position:relative;
  z-index:2;
  max-width:820px;
  padding:34px 20px;
  text-align:center;
}

.hero h1{
  margin:0;
  font-size:clamp(30px,7.4vw,56px);
  line-height:1.2;
  letter-spacing:.02em;
  color:#fff;
  text-shadow:0 0 12px rgba(255,0,110,.85),0 0 36px rgba(255,0,0,.6);
}

.hero-lead{
  margin:14px auto 0;
  max-width:54ch;
  color:var(--dim);
  font-size:17px;
}

.hero-band{
  position:absolute;
  left:-6%;right:-6%;
  bottom:-10px;
  height:22px;
  z-index:3;
  display:block;
  background:linear-gradient(90deg,var(--red),var(--pink) 45%,var(--red));
  transform:skewY(-2.2deg);
  box-shadow:0 0 26px rgba(255,0,110,.7);
}

/* ---------- 主体：左栏目录 + 正文 ---------- */
.stage{
  max-width:1160px;
  margin:0 auto;
  padding:34px 18px 8px;
  display:grid;
  grid-template-columns:1fr;
  gap:24px;
}

.rail{
  border:1px solid rgba(255,0,110,.28);
  border-radius:10px;
  background:rgba(26,26,46,.6);
  padding:14px;
}

.rail-h{
  margin:0 0 10px;
  font-family:var(--ui);
  font-size:16px;
  font-weight:700;
  letter-spacing:.16em;
  color:var(--pink);
}

.rail-h span{
  display:inline-block;
  padding-bottom:3px;
  border-bottom:1px solid rgba(255,0,110,.55);
}

.rail-list{
  list-style:none;
  margin:0;
  padding:0;
  display:flex;
  flex-wrap:wrap;
  gap:0 10px;
}

.rail-list a{
  display:flex;
  align-items:center;
  gap:8px;
  min-height:40px;
  padding:4px 2px;
  color:var(--dim);
  text-decoration:none;
  font-size:16px;
  border-bottom:1px dashed rgba(255,255,255,.09);
}

.rail-list a:hover,.rail-list a:focus-visible{
  color:#fff;
  text-shadow:0 0 10px var(--pink);
}

.n{
  font-family:var(--ui);
  font-size:14px;
  color:var(--red);
  letter-spacing:.06em;
}

.prose{min-width:0}

.prose section{
  padding-bottom:34px;
  margin-bottom:34px;
  border-bottom:1px solid rgba(255,255,255,.09);
  scroll-margin-top:20px;
}

.prose section:last-child{
  border-bottom:0;
  margin-bottom:0;
}

.prose h2{
  margin:0 0 16px;
  font-size:clamp(23px,3.6vw,32px);
  line-height:1.32;
  color:#fff;
}

.prose h2 > span{
  display:inline-block;
  position:relative;
  padding-bottom:9px;
}

.prose h2 > span::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:2px;
  background:linear-gradient(90deg,var(--red),var(--pink));
  box-shadow:0 0 12px var(--pink);
}

.prose h3{
  margin:26px 0 12px;
  font-size:20px;
  line-height:1.4;
  color:#ffd7e6;
}

.prose h3 > span{
  display:inline-block;
  padding-left:10px;
  border-left:3px solid var(--red);
}

.prose p{margin:0 0 16px}

.prose a{
  color:#ff5f9c;
  text-decoration:underline;
  text-decoration-color:rgba(255,0,110,.5);
  text-underline-offset:3px;
}

.prose ul,.prose ol{margin:0 0 18px;padding-left:22px}
.prose li{margin:0 0 8px}
.prose img{height:auto;border-radius:10px}
.prose figure{margin:0 0 18px}
.prose figcaption{font-size:16px;color:var(--dim)}
.prose hr{border:0;border-top:1px dashed rgba(255,0,110,.35);margin:26px 0}

.prose blockquote{
  margin:0 0 18px;
  padding:12px 16px;
  border-left:3px solid var(--pink);
  border-radius:0 10px 10px 0;
  background:rgba(255,0,110,.09);
  color:#ffe6f0;
}

.prose table{
  width:100%;
  border-collapse:collapse;
  font-size:16px;
  margin:0 0 18px;
}

.prose th,.prose td{
  border:1px solid rgba(255,0,110,.26);
  padding:8px 10px;
  text-align:left;
}

.prose th{background:rgba(255,0,110,.1);color:#fff}

/* ---------- 页脚 ---------- */
.foot{
  margin-top:36px;
  border-top:2px solid rgba(255,0,110,.45);
  background:linear-gradient(180deg,rgba(26,26,46,.65),rgba(8,4,15,1));
}

.cta{
  max-width:1160px;
  margin:0 auto;
  padding:42px 20px 26px;
  text-align:center;
  border-bottom:1px solid rgba(255,255,255,.08);
}

.cta h2{
  margin:0;
  font-size:clamp(26px,5.4vw,42px);
  line-height:1.25;
  color:#fff;
  text-shadow:0 0 14px rgba(255,0,110,.8),0 0 34px rgba(255,0,0,.45);
}

.cta h2 > span{display:inline-block}

.cta-links{
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:12px;
  margin:18px 0 0;
}

.cta-links a{
  display:inline-flex;
  align-items:center;
  min-height:40px;
  padding:6px 18px;
  border:1px solid rgba(255,0,110,.5);
  border-radius:999px;
  color:var(--text);
  font-family:var(--ui);
  font-size:16px;
  text-decoration:none;
}

.cta-links a:hover,.cta-links a:focus-visible{
  background:rgba(255,0,110,.18);
  box-shadow:0 0 16px rgba(255,0,110,.5);
  color:#fff;
}

.cols{
  max-width:1160px;
  margin:0 auto;
  padding:28px 20px;
  display:grid;
  grid-template-columns:1fr;
  gap:22px;
}

.cols dl{margin:0}

.cols dt{
  font-family:var(--ui);
  font-size:16px;
  letter-spacing:.1em;
  color:var(--pink);
  padding-bottom:6px;
  margin-bottom:8px;
  border-bottom:1px solid rgba(255,0,110,.3);
}

.cols dd{margin:0}

.cols dd a{
  display:inline-flex;
  align-items:center;
  min-height:40px;
  color:var(--dim);
  font-size:16px;
  text-decoration:none;
}

.cols dd a:hover,.cols dd a:focus-visible{
  color:#fff;
  text-shadow:0 0 10px var(--pink);
}

.copy{
  margin:0;
  padding:14px 20px 6px;
  text-align:center;
  font-family:var(--ui);
  font-size:16px;
  color:var(--dim);
  letter-spacing:.06em;
}

/* ---------- 动效 ---------- */
.rv{
  opacity:0;
  transform:translateY(18px);
  transition:opacity .6s ease,transform .6s ease;
}

.rv.in{opacity:1;transform:none}

@keyframes flick{
  0%,95%,100%{opacity:1}
  96%{opacity:.8}
  97%{transform:translateX(1px)}
  98%{opacity:1;transform:none}
}

@media (prefers-reduced-motion: no-preference){
  .hero h1{animation:flick 7s steps(1) infinite}
}

@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *{animation:none!important;transition:none!important}
  .rv{opacity:1;transform:none}
}

/* ---------- 断点 ---------- */
@media (min-width:760px){
  .cols{grid-template-columns:repeat(3,1fr);gap:28px}
  .cta{padding-top:52px;padding-bottom:32px}
}

@media (min-width:900px){
  .stage{
    grid-template-columns:206px minmax(0,1fr);
    gap:44px;
    padding:52px 20px 10px;
  }
  .rail{position:sticky;top:20px;align-self:start}
  .rail-list{flex-direction:column;flex-wrap:nowrap}
  .dock-in{padding:10px 18px}
}

@media (max-width:420px){
  .pill{padding:6px 11px}
  .brand{font-size:16px;letter-spacing:.06em}
  .hero-lead{font-size:16px}
}
</style>

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