:root{
  --pink:#ff0080;
  --mag:#ff00ff;
  --ink:#26171f;
  --deep:#180e14;
  --text:#f9ecf4;
  --dim:#dcbfd0;
  --line:rgba(255,255,255,.15);
  --card:rgba(46,27,37,.82);
  --radius:4px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"Nunito",system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
  font-size:17px;
  line-height:1.7;
  color:var(--text);
  background:var(--deep);
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:-22%;z-index:-2;pointer-events:none;
  background:
    radial-gradient(46% 42% at 16% 24%, rgba(255,0,128,.58), transparent 64%),
    radial-gradient(40% 44% at 80% 12%, rgba(255,0,255,.44), transparent 62%),
    radial-gradient(58% 56% at 64% 84%, rgba(122,0,184,.52), transparent 70%),
    radial-gradient(34% 34% at 10% 80%, rgba(255,0,128,.34), transparent 70%),
    conic-gradient(from 210deg at 52% 48%, rgba(255,0,128,.24), rgba(255,0,255,.18), rgba(80,0,140,.26), rgba(255,0,128,.24));
  filter:blur(28px) saturate(132%);
  animation:flow 26s ease-in-out infinite alternate;
}
body::after{
  content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:
    repeating-linear-gradient(115deg, rgba(255,255,255,.05) 0 1px, transparent 1px 46px),
    repeating-linear-gradient(65deg, rgba(255,0,255,.055) 0 1px, transparent 1px 64px);
  mix-blend-mode:screen;opacity:.5;
}
@keyframes flow{
  0%{transform:translate3d(-2%,-1%,0) scale(1.05) rotate(0deg)}
  50%{transform:translate3d(2%,1.5%,0) scale(1.12) rotate(3deg)}
  100%{transform:translate3d(-1%,2%,0) scale(1.07) rotate(-3deg)}
}
img{max-width:100%;height:auto;display:block}
a{color:#ff7cc0}
a:focus-visible,button:focus-visible{outline:2px solid #ffd0e8;outline-offset:3px}
.sr{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

.page{display:grid;grid-template-columns:236px minmax(0,1fr);max-width:1320px;margin:0 auto}
.stream{min-width:0}

/* ---- 左侧竖排固定栏 ---- */
.side{
  position:sticky;top:0;align-self:start;height:100vh;
  display:flex;flex-direction:column;gap:26px;
  padding:22px 16px;
  background:linear-gradient(180deg, rgba(38,23,31,.86), rgba(30,18,25,.62));
  backdrop-filter:blur(14px);
  border-right:1px solid var(--line);
}
.mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:52px;height:52px;flex:0 0 auto;border-radius:var(--radius);overflow:hidden;
  background:conic-gradient(from 140deg,#ff0080,#ff00ff,#7a00c0,#ff0080);
  box-shadow:0 14px 28px -16px rgba(255,0,128,.95);
  text-decoration:none;
}
.mark img{width:100%;height:100%;object-fit:cover}
.mark-sm{width:42px;height:42px}
.side-nav p{margin:0;display:flex;flex-direction:column;gap:3px}
.side-nav a{
  display:flex;align-items:center;min-height:44px;
  padding:10px 12px;border-radius:var(--radius);
  font-size:16px;font-weight:600;letter-spacing:.02em;
  color:#f3dcea;text-decoration:none;
  border:1px solid transparent;
  transition:background .25s ease,transform .25s ease,border-color .25s ease;
}
.side-nav a:hover,.side-nav a:focus-visible{
  background:linear-gradient(100deg, rgba(255,0,128,.32), rgba(255,0,255,.2));
  border-color:rgba(255,0,255,.5);
  transform:translateX(3px);
}

/* ---- 顶部细条 ---- */
.topbar{
  position:sticky;top:0;z-index:30;overflow:hidden;
  background:rgba(24,14,20,.74);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.ticker{display:flex;width:max-content;animation:slide 46s linear infinite}
.ticker span{
  padding:9px 24px;font-size:16px;font-weight:600;
  letter-spacing:.16em;color:#ffc4e2;white-space:nowrap;
}
@keyframes slide{to{transform:translateX(-50%)}}

/* ---- 首屏 ---- */
.hero{
  display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);
  gap:clamp(20px,4vw,48px);align-items:center;
  min-height:70vh;padding:clamp(26px,4vw,56px) clamp(16px,4vw,44px);
}
.hero-copy{text-align:center}
h1{
  font-family:"Fredoka","Nunito",system-ui,sans-serif;
  font-size:clamp(30px,4.3vw,52px);line-height:1.16;letter-spacing:.01em;
  margin:0 0 14px;
  background:linear-gradient(96deg,#fff 0%,#ffd0e8 30%,#ff5cb8 56%,#ff00ff 80%,#ffb3e0 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.lead{margin:0 auto;max-width:36em;font-size:18px;color:#e8d0de}
.art{
  position:relative;margin:0;aspect-ratio:4/3;border-radius:var(--radius);overflow:hidden;
  background:#2a1620;border:1px solid rgba(255,255,255,.18);
  box-shadow:0 34px 64px -36px rgba(0,0,0,.95), inset 0 0 0 1px rgba(255,0,255,.14);
}
.art .mesh{
  position:absolute;inset:-30%;
  background:conic-gradient(from 0deg,#ff0080,#ff00ff,#5c00a8,#ff0080);
  filter:blur(26px) saturate(142%);animation:spin 20s linear infinite;
}
@keyframes spin{to{transform:rotate(1turn)}}
.art img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.94;filter:saturate(1.08)}
.badge{
  position:absolute;left:14px;bottom:14px;
  padding:8px 15px;border-radius:var(--radius);
  font-size:16px;font-weight:700;color:#fff;
  background:rgba(38,23,31,.74);border:1px solid rgba(255,0,255,.55);
  backdrop-filter:blur(8px);animation:bob 4.5s ease-in-out infinite;
}
@keyframes bob{50%{transform:translateY(-6px)}}

/* ---- 目录 + 正文 ---- */
.grid2{
  display:grid;grid-template-columns:228px minmax(0,1fr);
  gap:clamp(18px,3vw,40px);
  padding:0 clamp(16px,4vw,44px) 56px;
  align-items:start;
}
.rail{
  position:sticky;top:74px;
  padding:18px 14px;border-radius:var(--radius);
  background:linear-gradient(160deg, rgba(255,0,128,.18), rgba(38,23,31,.74) 58%);
  border:1px solid rgba(255,0,255,.3);
  box-shadow:0 24px 46px -32px #000;
}
.rail h2{font-size:19px;margin:0 0 6px}
.subtitle{color:var(--dim);font-size:16px;font-weight:600;letter-spacing:.05em;margin:0 0 14px}
.jump{display:flex;flex-direction:column}
.jump a{
  display:flex;align-items:center;min-height:44px;
  padding:10px 6px;font-size:16px;color:#f0d7e6;text-decoration:none;
  border-bottom:1px dashed rgba(255,255,255,.14);
  transition:color .2s ease,transform .2s ease;
}
.jump a:last-child{border-bottom:0}
.jump a:hover,.jump a:focus-visible{color:#fff;transform:translateX(3px)}

.body{min-width:0}
.body > section{
  scroll-margin-top:88px;
  margin:0 0 22px;padding:clamp(20px,3vw,34px);
  border-radius:var(--radius);border:1px solid var(--line);
  background:linear-gradient(180deg, rgba(48,28,38,.84), rgba(32,18,26,.88));
  box-shadow:0 28px 52px -38px #000;
}
.body > section:last-child{margin-bottom:0}
.body h2{
  font-family:"Fredoka","Nunito",system-ui,sans-serif;
  font-size:clamp(21px,2.4vw,28px);line-height:1.35;
  margin:0 0 10px;color:#fff;
  padding-left:14px;border-left:3px solid var(--mag);
}
.body h3{font-size:19px;margin:22px 0 8px;color:#ffd9ec}
.body p{margin:0 0 14px}
.body ul,.body ol{padding-left:1.35em;margin:0 0 14px}
.body li{margin:0 0 8px}
.body a{color:#ff85c4;text-underline-offset:3px}
.body blockquote{
  margin:0 0 16px;padding:12px 16px;border-left:3px solid var(--pink);
  background:rgba(255,0,255,.09);border-radius:var(--radius);color:#f4dcea;
}
.body blockquote p:last-child{margin:0}
.body pre{
  overflow-x:auto;margin:0 0 16px;padding:14px;border-radius:var(--radius);
  background:#140b11;border:1px solid var(--line);font-size:16px;line-height:1.6;
}
.body code{font-size:16px;color:#ffc9e6}
.body figure{margin:0 0 16px}
.body figure img{border-radius:var(--radius);border:1px solid var(--line)}
.body table{width:100%;border-collapse:collapse;margin:0 0 16px;font-size:16px}
.body th,.body td{border:1px solid var(--line);padding:9px 11px;text-align:left}
.body th{background:rgba(255,0,255,.12)}

/* ---- 页脚 ---- */
footer{
  display:grid;grid-template-columns:auto minmax(0,1fr) auto;
  gap:16px 22px;align-items:center;
  padding:clamp(24px,4vw,38px) clamp(16px,4vw,44px) 30px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg, rgba(38,23,31,.55), rgba(22,13,19,.94));
}
.foot-cta{
  grid-column:1/-1;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
  padding:22px clamp(16px,3vw,28px);border-radius:var(--radius);
  background:linear-gradient(96deg, rgba(255,0,128,.34), rgba(255,0,255,.22) 62%, rgba(38,23,31,.2));
  border:1px solid rgba(255,0,255,.34);
  box-shadow:0 22px 44px -32px rgba(255,0,128,.8);
}
.foot-cta h2{
  font-family:"Fredoka","Nunito",system-ui,sans-serif;
  font-size:clamp(20px,2.6vw,26px);margin:0;color:#fff;
}
.up{
  display:inline-flex;align-items:center;min-height:44px;
  padding:0 20px;border-radius:var(--radius);
  font-size:16px;font-weight:700;text-decoration:none;color:#26171f;
  background:linear-gradient(96deg,#ffb3db,#ff5cb8);
  box-shadow:0 14px 26px -16px rgba(255,0,128,.95);
}
.up:hover{background:linear-gradient(96deg,#fff,#ff9ed2)}
.foot-mark{display:flex}
.foot-nav{display:flex;flex-wrap:wrap;gap:2px 6px;justify-content:center}
.foot-nav a{
  display:inline-flex;align-items:center;min-height:44px;
  padding:0 8px;font-size:16px;color:#e6c9d9;text-decoration:none;
  border-bottom:1px solid transparent;
}
.foot-nav a:hover,.foot-nav a:focus-visible{color:#fff;border-bottom-color:var(--mag)}
.legal p{margin:0;font-size:16px;color:#cbb0c0}

/* ---- 揭示动效 ---- */
html.js .rv{opacity:0;transform:translateY(16px);transition:opacity .7s ease,transform .7s cubic-bezier(.2,.7,.3,1)}
html.js .rv.in{opacity:1;transform:none}

@media (max-width:1080px){
  .grid2{grid-template-columns:200px minmax(0,1fr)}
}
@media (max-width:900px){
  .page{grid-template-columns:1fr}
  .side{
    position:static;height:auto;flex-direction:row;align-items:center;flex-wrap:wrap;
    gap:12px;padding:12px 16px;border-right:0;border-bottom:1px solid var(--line);
  }
  .side-nav p{flex-direction:row;flex-wrap:wrap;gap:4px}
  .side-nav a{padding:10px 11px;font-size:16px}
  .hero{grid-template-columns:1fr;min-height:0;padding:22px 16px 30px}
  .hero-copy{order:1}
  .art{order:2;aspect-ratio:16/10}
  .grid2{grid-template-columns:1fr;padding:0 16px 40px}
  .rail{position:static;order:1}
  .body{order:2}
  .jump{flex-direction:row;flex-wrap:wrap;gap:4px}
  .jump a{border-bottom:0;padding:10px 12px;border:1px solid rgba(255,255,255,.14);border-radius:var(--radius)}
  footer{grid-template-columns:1fr;text-align:center}
  .foot-mark{justify-content:center}
  .foot-nav{justify-content:center}
}
@media (max-width:420px){
  body{font-size:17px}
  .body > section{padding:18px 15px}
  h1{font-size:30px}
  .ticker span{letter-spacing:.1em}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
  html{scroll-behavior:auto}
  html.js .rv{opacity:1;transform:none}
}

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