:root{
  --ink:#05070C;
  --panel:#0C121B;
  --line:#1C2634;
  --line-soft:rgba(28,38,52,.65);
  --cyan:#22E6D4;
  --cyan-soft:#7FF3E8;
  --orange:#FF6A2C;
  --orange-soft:#FFA477;
  --violet:#7B5CFF;
  --violet-soft:#B79BFF;
  --text:#E9F1F7;
  --muted:#8A97A8;

  --rail-w:88px;
  --topbar-h:36px;

  --font-display:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-body:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  --font-mono:"SFMono-Regular",Menlo,Consolas,"Liberation Mono","Courier New",monospace;

  --ease:160ms ease;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,h5,p,ul,ol,li,figure,blockquote,dl,dd{margin:0}
ul,ol{padding:0;list-style:none}
img,picture,svg,video{display:block;max-width:100%}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
a{color:inherit;text-decoration:none}
table{border-collapse:collapse;width:100%}

body{
  min-height:100vh;
  padding-top:var(--topbar-h);
  padding-left:var(--rail-w);
  background-color:var(--ink);
  background-image:
    linear-gradient(to right,rgba(28,38,52,.42) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(28,38,52,.42) 1px,transparent 1px);
  background-size:80px 80px;
  background-attachment:fixed;
  color:var(--text);
  font-family:var(--font-body);
  font-size:16.5px;
  line-height:1.75;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

::selection{background:rgba(34,230,212,.28);color:#fff}

:where(a,button,input,select,textarea,summary,[tabindex]):focus-visible{
  outline:2px solid var(--cyan);
  outline-offset:3px;
}

h1,h2,h3,h4{font-family:var(--font-display);font-weight:800;line-height:1.08;letter-spacing:.01em}
p + p{margin-top:1.2em}

.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

.skip-link{
  position:fixed;top:8px;left:8px;z-index:200;
  padding:10px 16px;
  background:var(--cyan);color:#04120F;
  font-family:var(--font-mono);font-size:13px;font-weight:700;letter-spacing:.08em;
  transform:translateY(-200%);
  transition:transform .2s ease;
}
.skip-link:focus{transform:translateY(0)}

/* ============ 阅读进度 ============ */
.reading-progress{
  position:fixed;top:0;left:0;right:0;height:2px;
  z-index:100;pointer-events:none;
}
.reading-progress::after{
  content:"";display:block;height:100%;width:100%;
  transform:scaleX(var(--p,0));transform-origin:0 50%;
  background:linear-gradient(90deg,var(--cyan) 0%,var(--cyan-soft) 40%,var(--orange) 100%);
  box-shadow:0 0 12px rgba(34,230,212,.55);
}

/* ============ 通用容器与网格 ============ */
.shell{width:100%;max-width:1320px;margin-inline:auto;padding-inline:clamp(16px,4vw,56px)}
.shell--narrow{max-width:880px}
.stack > * + *{margin-top:1.2em}

.grid{
  display:grid;gap:1px;
  background:var(--line);
  border:1px solid var(--line);
}
.grid > *{background:var(--ink);padding:clamp(18px,2.4vw,30px)}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
@media (max-width:860px){
  .grid--3{grid-template-columns:1fr}
  .grid--2{grid-template-columns:1fr}
}

.divider{height:1px;background:var(--line);border:0;margin:clamp(28px,4vw,56px) 0}

/* ============ 排版原子件 ============ */
.eyebrow{
  display:inline-flex;align-items:center;gap:.6em;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.22em;
  text-transform:uppercase;color:var(--cyan);
}
.eyebrow::before{
  content:"";width:22px;height:1px;background:var(--cyan);display:block;
}
.lede{font-size:clamp(17px,1.6vw,20px);line-height:1.7;color:#B9C6D4;max-width:62ch}
.num{
  font-family:var(--font-mono);font-weight:700;
  font-size:clamp(38px,5vw,64px);line-height:1;
  letter-spacing:-.02em;color:var(--cyan);
  font-variant-numeric:tabular-nums;
}
.mono{
  font-family:var(--font-mono);font-size:12.5px;
  letter-spacing:.08em;color:var(--muted);
  font-variant-numeric:tabular-nums;
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.6em;
  padding:14px 26px;
  font-family:var(--font-display);font-size:13.5px;font-weight:700;
  letter-spacing:.14em;text-transform:uppercase;
  border:1px solid var(--line);border-radius:0;
  background:var(--panel);color:var(--text);
  transition:border-color var(--ease),background-color var(--ease),color var(--ease),transform var(--ease);
}
.btn:hover{transform:translateY(-2px);border-color:var(--cyan-soft);color:#fff}
.btn--primary{background:var(--cyan);border-color:var(--cyan);color:#04120F}
.btn--primary:hover{background:var(--cyan-soft);border-color:var(--cyan-soft);color:#04120F}
.btn--signal{background:transparent;border-color:var(--orange);color:var(--orange)}
.btn--signal:hover{background:rgba(255,106,44,.12);border-color:var(--orange-soft);color:var(--orange-soft)}
.btn--ghost{background:transparent;border-color:var(--line);color:var(--muted)}
.btn--ghost:hover{background:rgba(34,230,212,.08);border-color:var(--cyan);color:var(--cyan)}

/* ============ 标签 ============ */
.tag{
  display:inline-flex;align-items:center;gap:.45em;
  padding:4px 10px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;
  text-transform:uppercase;color:var(--muted);
  border:1px solid var(--line);border-radius:0;
  white-space:nowrap;
}
.tag--season{
  color:var(--violet-soft);border-color:rgba(123,92,255,.55);
  background:linear-gradient(100deg,rgba(123,92,255,.22),rgba(183,155,255,.06));
}
.tag--live{color:var(--orange);border-color:rgba(255,106,44,.5);background:rgba(255,106,44,.08)}
.tag--data{color:var(--cyan);border-color:rgba(34,230,212,.42);background:rgba(34,230,212,.07)}

/* ============ 面板与面包屑 ============ */
.panel{
  background:var(--panel);border:1px solid var(--line);border-radius:0;
  transition:border-color var(--ease),transform var(--ease),background-color var(--ease);
}
.panel:hover{border-color:var(--cyan);transform:translateY(-2px)}

.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:.45em;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;color:var(--muted);
}
.breadcrumb > li{display:flex;align-items:center;gap:.45em}
.breadcrumb > li + li::before{content:"/";color:#334152;margin-right:.45em}
.breadcrumb a{color:var(--muted);transition:color var(--ease)}
.breadcrumb a:hover{color:var(--cyan)}
.breadcrumb [aria-current="page"]{color:var(--text)}

/* ============ 横向主题带 ============ */
.scroll-x{
  display:flex;gap:1px;
  overflow-x:auto;overscroll-behavior-x:contain;
  scroll-snap-type:x mandatory;
  scrollbar-width:thin;
  background:var(--line);
  border:1px solid var(--line);
  scroll-padding-inline:0;
}
.scroll-x::-webkit-scrollbar{height:6px}
.scroll-x::-webkit-scrollbar-thumb{background:#26313F}
.scroll-x__item{
  flex:0 0 min(340px,82vw);
  scroll-snap-align:start;
  background:var(--ink);
  padding:clamp(18px,2.4vw,28px);
}

/* ============ 图片容器基础 ============ */
.media{
  position:relative;overflow:hidden;
  background:#080D15;
  border:1px solid var(--line);border-radius:0;
  aspect-ratio:16/9;
}
.media > img,
.media > picture > img{
  width:100%;height:100%;object-fit:cover;
  filter:saturate(.55) contrast(1.06) brightness(.92);
}
.media::after{
  content:"";position:absolute;inset:0;pointer-events:none;z-index:1;
  background-image:
    linear-gradient(to right,rgba(34,230,212,.10) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(34,230,212,.10) 1px,transparent 1px);
  background-size:44px 44px;
  opacity:.75;
  mix-blend-mode:screen;
}
.media--wide{aspect-ratio:21/9}
.media--portrait{aspect-ratio:3/4}
.media--square{aspect-ratio:1/1}
.media__cap{
  position:absolute;left:0;right:0;bottom:0;z-index:2;
  padding:28px 14px 10px;
  background:linear-gradient(to top,rgba(5,7,12,.94),rgba(5,7,12,0));
  font-family:var(--font-mono);font-size:11px;letter-spacing:.06em;
  color:var(--cyan-soft);
}

/* ============================================================
   头部
   ============================================================ */
.site-header{position:relative;z-index:60}

/* ---- 状态条 ---- */
.topbar{
  position:fixed;top:0;left:0;right:0;
  height:var(--topbar-h);
  z-index:80;
  background:rgba(12,18,27,.97);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(8px);
  transition:box-shadow var(--ease);
}
.site-header.is-scrolled .topbar{box-shadow:0 1px 0 rgba(34,230,212,.28)}
.topbar::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:repeating-linear-gradient(to bottom,rgba(233,241,247,.03) 0 1px,transparent 1px 3px);
}
.topbar__inner{
  display:flex;align-items:center;gap:14px;
  height:100%;
  padding-left:calc(var(--rail-w) + 16px);
  padding-right:16px;
  overflow:hidden;
}
.topbar__season{
  display:flex;align-items:center;gap:7px;
  flex:0 0 auto;
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.1em;
  color:var(--text);
  padding-right:14px;
  border-right:1px solid var(--line);
  white-space:nowrap;
}
.topbar__dot{
  width:6px;height:6px;flex:0 0 auto;
  background:var(--cyan);
  box-shadow:0 0 8px rgba(34,230,212,.9);
  animation:pulse 2.4s ease-in-out infinite;
}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}

.season-bar{
  display:flex;align-items:center;gap:6px;
  flex:1 1 auto;
  overflow-x:auto;overscroll-behavior-x:contain;
  scrollbar-width:none;
  padding-block:4px;
}
.season-bar::-webkit-scrollbar{display:none}
.season-chip{
  flex:0 0 auto;
  padding:4px 11px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;
  color:var(--muted);
  border:1px solid transparent;border-radius:0;
  white-space:nowrap;
  transition:color var(--ease),border-color var(--ease),background-color var(--ease);
}
.season-chip:hover{color:var(--text);border-color:var(--line)}
.season-chip.is-active{
  color:#04120F;background:var(--cyan);border-color:var(--cyan);font-weight:700;
}
.topbar__feed{
  flex:0 0 auto;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;
  color:var(--orange);
  padding-left:16px;
  border-left:1px solid var(--line);
  white-space:nowrap;
  transition:color var(--ease);
}
.topbar__feed:hover{color:var(--orange-soft)}

/* ---- 移动端菜单按钮 ---- */
.nav-toggle{
  position:fixed;top:0;right:0;z-index:90;
  display:none;
  align-items:center;gap:8px;
  height:var(--topbar-h);
  padding:0 14px;
  background:var(--panel);
  border-left:1px solid var(--line);
  border-bottom:1px solid var(--line);
  color:var(--cyan);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;
}
.nav-toggle__bars{
  position:relative;display:block;width:16px;height:1px;
  background:var(--cyan);
}
.nav-toggle__bars::before,
.nav-toggle__bars::after{
  content:"";position:absolute;left:0;width:16px;height:1px;
  background:var(--cyan);
  transition:transform var(--ease),opacity var(--ease);
}
.nav-toggle__bars::before{top:-5px}
.nav-toggle__bars::after{top:5px}

/* ---- 轨道导航 ---- */
.rail{
  position:fixed;top:var(--topbar-h);left:0;bottom:0;
  width:var(--rail-w);
  z-index:70;
  display:flex;flex-direction:column;
  background:var(--panel);
  border-right:1px solid var(--line);
}
.rail::after{
  content:"";position:absolute;left:0;right:0;top:0;height:120px;
  pointer-events:none;
  background:linear-gradient(to bottom,rgba(34,230,212,0) 0,rgba(34,230,212,.09) 50%,rgba(34,230,212,0) 100%);
  animation:scan 8s linear infinite;
}
@keyframes scan{
  0%{transform:translateY(-140px)}
  100%{transform:translateY(100vh)}
}

.rail__brand{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;
  height:88px;flex:0 0 auto;
  border-bottom:1px solid var(--line);
}
.rail__mark{
  font-family:var(--font-mono);font-size:15px;font-weight:700;
  letter-spacing:.14em;color:var(--cyan);
  text-shadow:0 0 14px rgba(34,230,212,.6);
}
.rail__wordmark{font-size:11px;letter-spacing:.06em;color:var(--muted)}

.rail__list{
  flex:1 1 auto;
  display:flex;flex-direction:column;
  overflow-y:auto;overscroll-behavior:contain;
  scrollbar-width:none;
}
.rail__list::-webkit-scrollbar{display:none}
.rail__item{border-bottom:1px solid var(--line)}
.rail__link{
  position:relative;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  min-height:62px;
  padding:10px 6px;
  font-size:12px;line-height:1.35;text-align:center;
  color:var(--muted);
  transition:color var(--ease),background-color var(--ease);
}
.rail__link::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:2px;
  background:transparent;
  transition:background-color var(--ease);
}
.rail__link:hover{color:var(--text);background:rgba(34,230,212,.06)}
.rail__link[aria-current="page"]{color:var(--cyan);background:rgba(34,230,212,.09)}
.rail__link[aria-current="page"]::before{background:var(--cyan)}
.rail__idx{
  font-family:var(--font-mono);font-size:10px;letter-spacing:.12em;
  color:rgba(138,151,168,.6);
  transition:color var(--ease);
}
.rail__link[aria-current="page"] .rail__idx{color:var(--orange)}
.rail__label{display:block;overflow-wrap:anywhere}

.rail__utils{
  flex:0 0 auto;
  display:flex;flex-direction:column;gap:1px;
  border-top:1px solid var(--line);
  padding-block:8px;
}
.rail__util{
  display:block;
  padding:6px 4px;
  text-align:center;
  font-size:10.5px;letter-spacing:.04em;
  color:var(--muted);
  transition:color var(--ease);
}
.rail__util:hover{color:var(--orange)}

/* ============================================================
   页脚
   ============================================================ */
.site-footer{
  position:relative;
  margin-top:clamp(48px,8vw,110px);
  background:var(--panel);
  border-top:1px solid var(--line);
}
.site-footer::before{
  content:"";display:block;height:2px;
  background:linear-gradient(90deg,var(--cyan) 0%,var(--violet) 48%,var(--orange) 100%);
}
.footer__top{
  display:grid;
  gap:clamp(26px,3.4vw,46px);
  grid-template-columns:minmax(230px,1.6fr) repeat(3,minmax(110px,1fr)) minmax(210px,1.4fr);
  max-width:1320px;margin-inline:auto;
  padding:clamp(38px,5.5vw,70px) clamp(16px,4vw,56px);
}
.footer__brand{display:flex;flex-direction:column;gap:12px}
.footer__brandlink{display:inline-flex;align-items:baseline;gap:10px}
.footer__mark{
  font-family:var(--font-mono);font-size:15px;font-weight:700;
  letter-spacing:.14em;color:var(--cyan);
  text-shadow:0 0 14px rgba(34,230,212,.55);
}
.footer__name{
  font-family:var(--font-display);font-size:21px;font-weight:800;
  letter-spacing:.04em;color:var(--text);
}
.footer__pitch{font-size:14px;line-height:1.7;color:var(--muted);max-width:30ch}
.footer__since{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;
  color:var(--violet-soft);
}
.footer__col{display:flex;flex-direction:column}
.footer__title{
  font-family:var(--font-mono);font-size:11px;font-weight:400;
  letter-spacing:.24em;text-transform:uppercase;
  color:var(--cyan);
  padding-bottom:12px;margin-bottom:14px;
  border-bottom:1px solid var(--line);
}
.footer__list{display:flex;flex-direction:column;gap:9px}
.footer__list a{
  font-size:14px;color:var(--muted);
  transition:color var(--ease),padding-left var(--ease);
}
.footer__list a:hover{color:var(--text);padding-left:6px}
.footer__col--contact{gap:12px}
.footer__mail{
  font-family:var(--font-mono);font-size:13px;letter-spacing:.03em;
  color:var(--text);word-break:break-all;
}
.footer__note{font-size:13px;line-height:1.7;color:var(--muted)}
.footer__cta{
  align-self:flex-start;
  margin-top:4px;
  padding-bottom:3px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;
  color:var(--orange);
  border-bottom:1px solid rgba(255,106,44,.55);
  transition:color var(--ease),border-color var(--ease);
}
.footer__cta:hover{color:var(--orange-soft);border-color:var(--orange-soft)}

.footer__bottom{
  display:flex;flex-wrap:wrap;align-items:center;
  gap:12px 30px;
  max-width:1320px;margin-inline:auto;
  padding:18px clamp(16px,4vw,56px) 34px;
  border-top:1px solid var(--line);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.04em;
  color:var(--muted);
}
.footer__copy{color:var(--muted)}
.footer__legal{display:flex;flex-wrap:wrap;gap:6px 20px}
.footer__legal a{color:var(--muted);transition:color var(--ease)}
.footer__legal a:hover{color:var(--cyan)}
.footer__icp{color:#5C6A7C;margin-left:auto}
@media (max-width:900px){
  .footer__icp{margin-left:0}
}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width:1180px){
  .footer__top{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer__brand{grid-column:1 / -1}
  .footer__col--contact{grid-column:1 / -1}
}

@media (max-width:1023px){
  :root{--rail-w:0px}

  .nav-toggle{display:flex}
  .topbar__inner{padding-left:14px;padding-right:84px;gap:10px}
  .topbar__feed{display:none}

  .rail{
    top:var(--topbar-h);left:0;right:0;bottom:0;
    width:100%;
    z-index:85;
    border-right:0;
    border-top:1px solid var(--line);
    background:var(--ink);
    transform:translateX(-100%);
    transition:transform .26s ease;
    overflow-y:auto;
  }
  .rail[data-open="true"]{transform:translateX(0)}
  html.nav-open{overflow:hidden}

  .rail::after{display:none}

  .rail__brand{
    flex-direction:row;justify-content:flex-start;gap:12px;
    height:auto;padding:20px 20px;
  }
  .rail__wordmark{font-size:14px;color:var(--text)}

  .rail__list{
    flex:0 0 auto;
    display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
    gap:1px;
    background:var(--line);
    border-block:1px solid var(--line);
    overflow:visible;
  }
  .rail__item{background:var(--panel);border-bottom:0}
  .rail__link{
    flex-direction:row;justify-content:flex-start;gap:10px;
    min-height:64px;padding:14px 18px;
    font-size:14px;text-align:left;
  }
  .rail__link::before{top:auto;bottom:0;left:0;right:0;width:auto;height:2px}
  .rail__idx{font-size:11px}

  .rail__utils{
    flex-direction:row;flex-wrap:wrap;justify-content:flex-start;
    gap:8px 20px;padding:18px 20px 40px;
  }
  .rail__util{font-size:12px;padding:4px 0;text-align:left;color:var(--muted)}
}

@media (max-width:560px){
  body{font-size:16px}
  .topbar__season{font-size:10.5px;padding-right:10px}
  .season-chip{font-size:10.5px;padding:3px 8px}
  .nav-toggle{padding:0 12px;font-size:10px}
  .footer__top{grid-template-columns:1fr;gap:30px}
  .footer__bottom{font-size:11px;gap:10px 20px}
}

/* ============================================================
   动效降级
   ============================================================ */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .rail::after{display:none}
  .topbar__dot{animation:none}
  .panel:hover,.btn:hover{transform:none}
}