@import url('https://fonts.googleapis.com/css2?family=Caveat:wght@400;500;600;700&family=Quicksand:wght@300;400;500;600;700&display=swap');

:root{
  --red:#ff0000;
  --violet:#8b00ff;
  --ink:#261717;
  --base:#171011;
  --paper:#f8f1f2;
  --muted:#cfbac7;
  --glass:rgba(255,255,255,.075);
  --glass-2:rgba(255,255,255,.12);
  --line:rgba(255,255,255,.18);
  --radius:4px;
  --blur:blur(15px);
}

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

html{
  scroll-behavior:smooth;
  -webkit-text-size-adjust:100%;
}

body{
  margin:0;
  font-family:'Quicksand','PingFang SC','Hiragino Sans GB','Microsoft YaHei',system-ui,sans-serif;
  font-size:17px;
  line-height:1.78;
  color:var(--paper);
  background-color:var(--base);
  background-image:
    radial-gradient(circle at 10% 2%, rgba(255,0,0,.34) 0%, transparent 42%),
    radial-gradient(circle at 92% 9%, rgba(139,0,255,.42) 0%, transparent 44%),
    radial-gradient(circle at 46% 98%, rgba(139,0,255,.20) 0%, transparent 54%);
  background-attachment:fixed;
  overflow-x:hidden;
}

body::before{
  content:'';
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.30) 1px, transparent 1px);
  background-size:24px 24px;
  opacity:.16;
}

.ticker,.topbar,.hero,.shell,.foot{position:relative;z-index:1}

h1,h2,h3,h4{
  font-weight:600;
  line-height:1.28;
  margin:0 0 .5em;
  letter-spacing:.01em;
}

p{margin:0 0 1.05em}
a{color:var(--paper);text-decoration:none}
a:hover{color:#fff}
img{max-width:100%}

:focus-visible{
  outline:2px solid var(--red);
  outline-offset:3px;
}

[id]{scroll-margin-top:120px}

/* ── 顶部细条 ── */
.ticker{
  display:flex;
  align-items:center;
  gap:10px;
  padding:8px 20px;
  font-size:16px;
  letter-spacing:.06em;
  color:#ffd9e6;
  background:linear-gradient(90deg, rgba(255,0,0,.30), rgba(139,0,255,.30));
  border-bottom:1px solid rgba(255,255,255,.16);
  backdrop-filter:var(--blur);
  -webkit-backdrop-filter:var(--blur);
}
.ticker p{
  margin:0;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.pip{
  flex:0 0 auto;
  width:8px;height:8px;
  border-radius:50%;
  background:var(--red);
  box-shadow:0 0 0 4px rgba(255,0,0,.22);
}

/* ── 顶栏 ── */
.topbar{
  position:sticky;
  top:0;
  z-index:30;
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:6px;
  padding:8px 18px;
  background:rgba(23,16,17,.62);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
}

.side .menu{
  list-style:none;
  margin:0;
  padding:0;
  display:flex;
  gap:2px;
}
.side-l .menu{justify-content:flex-end}
.side-r .menu{justify-content:flex-start}

.menu a{
  display:inline-flex;
  align-items:center;
  min-height:44px;
  padding:6px 13px;
  font-size:16px;
  border-radius:var(--radius);
  border:1px solid transparent;
  transition:background .2s, border-color .2s, color .2s;
}
.menu a:hover{
  background:var(--glass-2);
  border-color:var(--line);
}

.brand{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:8px 18px;
  min-height:44px;
  font-family:'Caveat','Quicksand','PingFang SC',system-ui,sans-serif;
  font-size:24px;
  font-weight:600;
  letter-spacing:.02em;
  color:#fff;
  text-shadow:0 1px 14px rgba(255,0,0,.45);
}
.brand .mark{
  width:34px;
  height:34px;
  border-radius:50%;
  object-fit:cover;
  border:1px solid var(--line);
}

/* ── 主视觉 ── */
.hero{
  position:relative;
  min-height:70vh;
  display:flex;
  align-items:flex-end;
  overflow:hidden;
  border-bottom:1px solid var(--line);
  isolation:isolate;
  background:
    radial-gradient(circle at 22% 24%, rgba(255,0,0,.48), transparent 54%),
    radial-gradient(circle at 78% 32%, rgba(139,0,255,.52), transparent 56%),
    #1b1216;
}
.hero-short{min-height:46vh}

.hero-media{
  position:absolute;
  inset:-8% 0;
  z-index:-3;
}
.hero-img{
  width:100%;
  height:100%;
  object-fit:cover;
  display:block;
  transform:translate3d(0,0,0);
  will-change:transform;
}

.hero-veil{
  position:absolute;
  inset:0;
  z-index:-2;
  background:
    linear-gradient(180deg, rgba(23,16,17,.30) 0%, rgba(23,16,17,.60) 52%, rgba(23,16,17,.94) 100%),
    linear-gradient(90deg, rgba(23,16,17,.62) 0%, rgba(23,16,17,.10) 70%);
}

.dots{
  position:absolute;
  inset:0;
  z-index:-1;
  pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.55) 1px, transparent 1px);
  background-size:26px 26px;
  opacity:.20;
  mask-image:linear-gradient(180deg, #000 0%, transparent 82%);
  -webkit-mask-image:linear-gradient(180deg, #000 0%, transparent 82%);
}

.hero-copy{
  width:100%;
  max-width:1180px;
  margin:0 auto;
  padding:0 24px 7vh;
}
.hero-h1{
  margin:0 0 .35em;
  font-size:clamp(2.05rem,6.4vw,4.1rem);
  letter-spacing:.01em;
  text-shadow:0 2px 30px rgba(0,0,0,.5);
  max-width:22ch;
}
.hero-desc{
  margin:0;
  max-width:44ch;
  font-size:clamp(1rem,2.2vw,1.14rem);
  color:#f0dde6;
  text-shadow:0 1px 18px rgba(0,0,0,.55);
}

/* ── 主体骨架 ── */
.shell{
  display:grid;
  grid-template-columns:262px minmax(0,1fr);
  gap:34px;
  max-width:1180px;
  margin:0 auto;
  padding:44px 24px 84px;
}

/* ── 侧栏 ── */
.rail{
  position:sticky;
  top:96px;
  align-self:start;
  display:flex;
  flex-direction:column;
  gap:18px;
}

.rail-block{
  padding:20px 18px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--glass);
  backdrop-filter:var(--blur);
  -webkit-backdrop-filter:var(--blur);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.16);
}

.eyebrow{
  display:block;
  font-family:'Caveat','Quicksand',system-ui,sans-serif;
  font-size:16px;
  letter-spacing:.24em;
  color:#ffb7cc;
  font-weight:600;
}

.rail-title{
  font-size:20px;
  margin:.05em 0 .6em;
}

.rail-list{
  list-style:none;
  counter-reset:rl;
  margin:0;
  padding:0;
}
.rail-list li{counter-increment:rl}
.rail-list a{
  display:flex;
  align-items:center;
  gap:10px;
  min-height:42px;
  padding:5px 8px;
  font-size:16px;
  border-left:2px solid transparent;
  border-radius:0 var(--radius) var(--radius) 0;
  color:var(--muted);
  transition:color .2s, border-color .2s, background .2s;
}
.rail-list a::before{
  content:counter(rl,decimal-leading-zero);
  font-family:'Caveat','Quicksand',sans-serif;
  font-size:17px;
  color:rgba(255,255,255,.45);
  letter-spacing:.04em;
}
.rail-list a:hover{
  color:#fff;
  border-left-color:var(--red);
  background:rgba(255,255,255,.06);
}

.rail-sig{
  padding:14px 18px;
}
.rail-brand{
  font-family:'Caveat','Quicksand','PingFang SC',sans-serif;
  font-size:21px;
  color:#ffd9e6;
  display:inline-flex;
  align-items:center;
  min-height:40px;
}

/* ── 正文 ── */
.main{min-width:0}

.prose > section{
  position:relative;
  overflow:hidden;
  margin:0 0 26px;
  padding:28px 26px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--glass);
  backdrop-filter:var(--blur);
  -webkit-backdrop-filter:var(--blur);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.15), 0 18px 42px -30px rgba(0,0,0,.9);
}
.prose > section::after{
  content:'';
  position:absolute;
  left:0;right:0;bottom:0;
  height:2px;
  background:linear-gradient(90deg, var(--red), var(--violet));
}

.prose > section > *:last-child{margin-bottom:0}

.prose h1{
  font-size:clamp(1.85rem,4.4vw,2.7rem);
  margin-bottom:.45em;
}
.prose h2{
  font-size:clamp(1.32rem,2.8vw,1.75rem);
  margin-top:.2em;
}
.prose h3{
  font-size:1.14rem;
  color:#ffd9e6;
  margin-top:1.4em;
}
.prose h2 + p,.prose h3 + p{margin-top:.2em}

.prose p{color:#f2e6ec}
.prose strong{color:#fff;font-weight:600}
.prose em{font-style:normal;color:#ffc2d5}

.prose a{
  color:#ffd0dd;
  border-bottom:1px solid rgba(255,0,0,.6);
  padding-bottom:1px;
}
.prose a:hover{color:#fff;border-bottom-color:var(--violet)}

.prose ul,.prose ol{
  margin:0 0 1.15em;
  padding-left:1.35em;
}
.prose li{margin:.32em 0}
.prose ul li::marker{color:var(--red)}
.prose ol li::marker{color:var(--violet)}

.prose blockquote{
  margin:1.2em 0;
  padding:.7em 0 .7em 1.1em;
  border-left:2px solid var(--violet);
  color:var(--muted);
}

.prose img{
  height:auto;
  border-radius:var(--radius);
  border:1px solid var(--line);
}

.prose hr{
  border:0;
  height:1px;
  background:linear-gradient(90deg, transparent, var(--line), transparent);
  margin:1.6em 0;
}

.prose table{
  width:100%;
  border-collapse:collapse;
  font-size:16px;
  margin:0 0 1.2em;
}
.prose th,.prose td{
  border:1px solid rgba(255,255,255,.14);
  padding:8px 10px;
  text-align:left;
}

/* 滚动显现 */
.reveal{
  opacity:0;
  transform:translateY(20px);
  transition:opacity .6s ease, transform .6s ease;
}
.reveal.on{opacity:1;transform:none}

/* ── 页脚 ── */
.foot{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr .85fr;
  gap:30px;
  margin-top:30px;
  padding:56px max(24px, calc((100% - 1180px) / 2)) 26px;
  background:rgba(18,12,13,.74);
  border-top:1px solid var(--line);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
}

.foot-col{display:flex;flex-direction:column;gap:6px;min-width:0}

.foot-name{
  margin:.1em 0 0;
  font-family:'Caveat','Quicksand','PingFang SC',sans-serif;
  font-size:24px;
  color:#fff;
}
.foot-desc{
  margin:0;
  font-size:16px;
  color:var(--muted);
  max-width:32ch;
}

.foot-list{
  list-style:none;
  margin:0;
  padding:0;
}
.foot-list a,.toplink{
  display:inline-flex;
  align-items:center;
  min-height:40px;
  padding:2px 0;
  font-size:16px;
  color:var(--muted);
}
.foot-list a:hover,.toplink:hover{color:#fff}

.foot-base{
  grid-column:1 / -1;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-top:16px;
  padding-top:16px;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:16px;
  color:var(--muted);
}
.foot-base p{margin:0}
.foot-base a{
  display:inline-flex;
  align-items:center;
  min-height:40px;
  color:#ffd0dd;
}

/* ── 断点 ── */
@media (max-width:1000px){
  .shell{grid-template-columns:minmax(0,1fr);gap:26px;padding-top:30px}
  .rail{position:static;order:2;flex-direction:row;flex-wrap:wrap}
  .rail-block{flex:1 1 260px}
  .foot{grid-template-columns:1fr 1fr;gap:24px}
}

@media (max-width:860px){
  .topbar{grid-template-columns:minmax(0,1fr);gap:0;padding:6px 12px}
  .brand{order:-1;padding:6px 10px;font-size:22px}
  .side-l .menu,.side-r .menu{justify-content:center;flex-wrap:wrap}
  .menu a{padding:6px 10px;min-height:42px;font-size:16px}
  .hero{min-height:62vh}
  .hero-short{min-height:40vh}
  .hero-copy{padding:0 18px 6vh}
  [id]{scroll-margin-top:150px}
}

@media (max-width:640px){
  body{font-size:16px}
  .ticker{font-size:16px;padding:7px 14px}
  .shell{padding:22px 14px 60px;gap:20px}
  .prose > section{padding:22px 17px}
  .foot{grid-template-columns:1fr;padding:40px 16px 22px}
  .hero-copy{padding:0 16px 5vh}
}

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

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