:root{
  --ink:#06110E;
  --turf:#0C241D;
  --terrace:#14332A;
  --cyan:#35F2C8;
  --cyan-mist:#7FF7DD;
  --orange:#FF6B2C;
  --gold:#F2C14E;
  --chalk:#F4F7F5;
  --gray:#9FB3AC;
  --coral:#FF4D5E;

  --rail-w:96px;
  --bar-h:64px;
  --edge:96px;
  --gutter:24px;
  --max-w:1200px;

  --font-display:"Noto Sans SC","Archivo Black","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-body:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:ui-monospace,"SFMono-Regular","JetBrains Mono","IBM Plex Mono",Menlo,Consolas,monospace;

  --t-fast:160ms ease-out;
  --t-panel:120ms ease-out;
}

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

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

body,h1,h2,h3,h4,h5,p,figure,blockquote,dl,dd,ul,ol,address{margin:0;}
ul,ol{padding:0;list-style:none;}
img,svg{display:block;max-width:100%;}
button{font:inherit;color:inherit;background:none;border:0;}
h1,h2,h3,h4{font-family:var(--font-display);font-weight:900;line-height:1.16;letter-spacing:-0.01em;}

html,body{height:auto;}

body{
  background-color:var(--ink);
  background-image:
    repeating-linear-gradient(to right, rgba(20,51,42,.55) 0 1px, transparent 1px 96px),
    repeating-linear-gradient(to bottom, rgba(20,51,42,.55) 0 1px, transparent 1px 96px);
  color:var(--chalk);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.8;
  padding-top:var(--bar-h);
  padding-left:var(--rail-w);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}

a{color:var(--cyan);text-decoration:none;}

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

#main-content{display:block;}

/* ---------- 跳转链接 ---------- */
.skip-link{
  position:fixed;
  top:-80px;
  left:12px;
  z-index:999;
  display:inline-block;
  padding:10px 18px;
  background:var(--cyan);
  color:var(--ink);
  font-weight:700;
  font-size:14px;
  letter-spacing:.04em;
  border:1px solid var(--cyan);
  transition:top var(--t-fast);
}
.skip-link:focus{top:12px;}

/* ---------- 顶部条 ---------- */
.site-header{position:relative;z-index:120;}

.site-header__bar{
  position:fixed;
  inset:0 0 auto 0;
  z-index:130;
  display:flex;
  align-items:center;
  gap:16px;
  height:var(--bar-h);
  padding:0 20px 0 18px;
  background:rgba(6,17,14,.95);
  border-bottom:1px solid var(--terrace);
  backdrop-filter:blur(6px);
}

.brand{
  flex:0 0 auto;
  display:flex;
  align-items:center;
  gap:10px;
  color:var(--chalk);
}
.brand__mark{
  display:inline-block;
  padding:5px 9px 6px;
  background:var(--cyan);
  color:var(--ink);
  font-family:var(--font-mono);
  font-size:19px;
  font-weight:700;
  line-height:1;
  letter-spacing:.02em;
  clip-path:polygon(0 0,100% 0,100% 68%,86% 100%,0 100%);
  transition:background var(--t-fast),color var(--t-fast);
}
.brand:hover .brand__mark,
.brand:focus-visible .brand__mark{background:var(--gold);}
.brand__name{
  display:flex;
  flex-direction:column;
  font-size:15px;
  font-weight:700;
  line-height:1.15;
  letter-spacing:.1em;
  color:var(--chalk);
}
.brand__sub{
  margin-top:3px;
  font-family:var(--font-mono);
  font-size:9px;
  font-weight:400;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--gray);
}

.status-strip{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:20px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.1em;
  color:var(--gray);
  white-space:nowrap;
}
.status-strip__item{display:inline-flex;align-items:center;gap:7px;}
.status-strip__season{color:var(--gold);}
.dot{
  width:6px;height:6px;border-radius:50%;
  display:inline-block;flex:0 0 auto;
}
.dot--cyan{background:var(--cyan);box-shadow:0 0 0 3px rgba(53,242,200,.16);}
.dot--gold{background:var(--gold);box-shadow:0 0 0 3px rgba(242,193,78,.16);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:0 20px;
  border:1px solid transparent;
  font-family:var(--font-body);
  font-size:14px;
  font-weight:700;
  letter-spacing:.05em;
  line-height:1;
  cursor:pointer;
  text-decoration:none;
  white-space:nowrap;
  transition:background var(--t-fast),color var(--t-fast),border-color var(--t-fast);
}
.btn--orange{background:var(--orange);color:#160800;border-color:var(--orange);}
.btn--orange:hover,.btn--orange:focus-visible{background:var(--gold);border-color:var(--gold);color:var(--ink);}
.btn--cyan{background:var(--cyan);color:var(--ink);border-color:var(--cyan);}
.btn--cyan:hover,.btn--cyan:focus-visible{background:var(--cyan-mist);border-color:var(--cyan-mist);}
.btn--ghost{background:transparent;color:var(--chalk);border-color:var(--terrace);}
.btn--ghost:hover,.btn--ghost:focus-visible{border-color:var(--cyan);color:var(--cyan);}

.header-cta{flex:0 0 auto;}

/* ---------- 移动菜单按钮 ---------- */
.nav-toggle{
  display:none;
  flex:0 0 auto;
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:5px;
  width:44px;
  height:44px;
  padding:0;
  border:1px solid var(--terrace);
  color:var(--chalk);
  cursor:pointer;
  transition:border-color var(--t-fast),color var(--t-fast);
}
.nav-toggle span{display:block;width:18px;height:1.5px;background:currentColor;}
.nav-toggle:hover,.nav-toggle:focus-visible{border-color:var(--cyan);color:var(--cyan);}
.nav-toggle[aria-expanded="true"]{border-color:var(--orange);color:var(--orange);}

/* ---------- 滚动进度 ---------- */
.scroll-progress{
  position:absolute;
  left:0;right:0;bottom:-1px;
  height:2px;
  pointer-events:none;
  background:rgba(20,51,42,.8);
}
.scroll-progress > span{
  display:block;
  height:100%;
  width:100%;
  background:linear-gradient(90deg,var(--cyan),var(--cyan-mist) 55%,var(--gold));
  transform:scaleX(0);
  transform-origin:left center;
}

/* ---------- 侧边轨道导航 ---------- */
.rail{
  position:fixed;
  top:var(--bar-h);
  left:0;
  bottom:0;
  z-index:120;
  width:var(--rail-w);
  display:flex;
  flex-direction:column;
  padding:20px 0 0;
  background:var(--ink);
  border-right:1px solid var(--terrace);
  overflow-y:auto;
  overscroll-behavior:contain;
}
.rail__list{
  display:flex;
  flex-direction:column;
  gap:2px;
  padding:0 10px;
}
.rail__link{
  display:flex;
  flex-direction:column;
  align-items:flex-start;
  gap:3px;
  min-height:44px;
  padding:10px 8px;
  color:var(--gray);
  border-left:2px solid transparent;
  background-image:linear-gradient(var(--terrace),var(--terrace));
  background-repeat:no-repeat;
  background-position:left center;
  background-size:0% 100%;
  transition:background-size var(--t-fast),color var(--t-fast),border-color var(--t-fast);
}
.rail__link:hover,
.rail__link:focus-visible{
  background-size:100% 100%;
  color:var(--cyan-mist);
  border-left-color:var(--terrace);
}
.rail__idx{
  font-family:var(--font-mono);
  font-size:9px;
  letter-spacing:.18em;
  line-height:1;
  color:rgba(159,179,172,.6);
  transition:color var(--t-fast);
}
.rail__label{
  font-size:12px;
  font-weight:500;
  letter-spacing:.06em;
  line-height:1.3;
}
.rail__link[aria-current="page"]{
  background-size:100% 100%;
  border-left-color:var(--cyan);
  color:var(--chalk);
}
.rail__link[aria-current="page"] .rail__idx{color:var(--cyan);}
.rail__link[aria-current="page"] .rail__label{font-weight:700;}

.rail__foot{
  margin-top:auto;
  padding:18px 14px 22px;
  border-top:1px solid var(--terrace);
  font-family:var(--font-mono);
  font-size:9px;
  line-height:1.8;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:rgba(159,179,172,.7);
}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:clamp(64px,10vw,120px);
  padding:clamp(48px,7vw,80px) var(--gutter) 32px;
  background:var(--turf);
  border-top:1px solid var(--terrace);
  z-index:10;
}
.site-footer::before{
  content:"";
  position:absolute;
  left:0;right:0;top:-44px;
  height:44px;
  background:var(--turf);
  clip-path:polygon(0 100%,100% 0,100% 100%);
  pointer-events:none;
}

.footer__inner{max-width:var(--max-w);margin-inline:auto;}

.footer__head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  gap:18px 32px;
  padding-bottom:28px;
  border-bottom:1px solid var(--terrace);
}
.footer__brand{display:flex;align-items:center;gap:12px;color:var(--chalk);}
.footer__mark{
  display:inline-block;
  padding:6px 10px 7px;
  background:var(--cyan);
  color:var(--ink);
  font-family:var(--font-mono);
  font-size:20px;
  font-weight:700;
  line-height:1;
  clip-path:polygon(0 0,100% 0,100% 68%,86% 100%,0 100%);
  transition:background var(--t-fast);
}
.footer__brand:hover .footer__mark,
.footer__brand:focus-visible .footer__mark{background:var(--gold);}
.footer__brandtext{
  display:flex;
  flex-direction:column;
  font-family:var(--font-display);
  font-size:18px;
  font-weight:900;
  letter-spacing:.12em;
  line-height:1.1;
}
.footer__brandsub{
  margin-top:4px;
  font-family:var(--font-mono);
  font-size:9px;
  font-weight:400;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--gray);
}
.footer__tagline{
  margin-left:auto;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--gray);
}

.footer__grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:32px 28px;
  padding:40px 0;
}
.footer__title{
  margin-bottom:14px;
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:700;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--cyan);
}
.footer__list{display:flex;flex-direction:column;gap:2px;}
.footer__link{
  display:inline-block;
  padding:6px 0;
  color:var(--gray);
  font-size:14px;
  letter-spacing:.02em;
  background-image:linear-gradient(var(--terrace),var(--terrace));
  background-repeat:no-repeat;
  background-position:left center;
  background-size:0% 100%;
  transition:background-size var(--t-fast),color var(--t-fast),padding-left var(--t-fast);
}
.footer__link:hover,
.footer__link:focus-visible{
  background-size:100% 100%;
  color:var(--chalk);
  padding-left:8px;
}

.footer__meta{
  padding-top:26px;
  border-top:1px solid var(--terrace);
}
.footer__base{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px 26px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.08em;
  color:var(--gray);
}
.footer__mono{color:var(--chalk);opacity:.85;}
.footer__legal{color:var(--gold);letter-spacing:.12em;}
.footer__address{
  margin-top:14px;
  font-size:13px;
  font-style:normal;
  line-height:1.8;
  color:var(--gray);
}
.footer__note{
  margin-top:8px;
  max-width:60ch;
  font-size:12px;
  line-height:1.9;
  letter-spacing:.02em;
  color:rgba(159,179,172,.8);
}

/* ---------- 通用布局 ---------- */
.container{
  width:100%;
  max-width:var(--max-w);
  margin-inline:auto;
  padding-inline:var(--gutter);
}
.section{padding-block:clamp(56px,9vw,112px);}
.grid{
  display:grid;
  gap:var(--gutter);
  grid-template-columns:repeat(var(--cols,12),minmax(0,1fr));
}
.stack > * + *{margin-top:var(--stack-gap,16px);}
.rule{height:1px;border:0;background:var(--terrace);}
.mono{font-family:var(--font-mono);letter-spacing:.06em;}
.num{font-family:var(--font-mono);font-weight:700;font-variant-numeric:tabular-nums;}
.eyebrow{
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:700;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--cyan);
}
.lede{
  max-width:68ch;
  font-size:18px;
  line-height:1.85;
  color:rgba(244,247,245,.84);
}
.visually-hidden{
  position:absolute;
  width:1px;height:1px;
  margin:-1px;padding:0;
  overflow:hidden;
  clip:rect(0 0 0 0);
  clip-path:inset(50%);
  white-space:nowrap;
}

/* ---------- 面包屑 ---------- */
.breadcrumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--gray);
}
.breadcrumbs a{
  color:var(--gray);
  border-bottom:1px solid transparent;
  transition:color var(--t-fast),border-color var(--t-fast);
}
.breadcrumbs a:hover,
.breadcrumbs a:focus-visible{color:var(--cyan);border-bottom-color:var(--cyan);}
.breadcrumbs__sep{color:rgba(159,179,172,.45);}

/* ---------- 图片容器 ---------- */
.media{
  position:relative;
  display:block;
  overflow:hidden;
  background:var(--terrace);
  border:1px solid var(--terrace);
}
.media__img{
  display:block;
  width:100%;
  height:100%;
  object-fit:cover;
}
.media--wide{aspect-ratio:16/9;}
.media--tall{aspect-ratio:3/4;}
.media--square{aspect-ratio:1/1;}
.media--band{aspect-ratio:21/9;}
.media--skew{clip-path:polygon(0 0,100% 0,100% 88%,92% 100%,0 100%);}
.media__caption{
  margin-top:10px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.12em;
  line-height:1.7;
  color:var(--gray);
}

/* ---------- 面板 / chips ---------- */
.panel{
  position:relative;
  padding:clamp(20px,3vw,32px);
  background:var(--terrace);
  border:1px solid rgba(53,242,200,.14);
  border-left:2px solid var(--cyan);
}
.panel--light{
  background:var(--chalk);
  border-color:rgba(6,17,14,.12);
  border-left:2px solid var(--orange);
  color:var(--ink);
}
.panel--light .eyebrow{color:var(--orange);}
.panel--light a{color:#0B3B2E;}

.chip-row{display:flex;flex-wrap:wrap;gap:8px;}
.chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  min-height:44px;
  padding:0 14px;
  border:1px solid var(--terrace);
  background:transparent;
  color:var(--gray);
  font-size:13px;
  font-weight:500;
  letter-spacing:.04em;
  cursor:pointer;
  transition:background var(--t-fast),color var(--t-fast),border-color var(--t-fast);
}
.chip:hover,.chip:focus-visible{border-color:var(--cyan);color:var(--cyan);}
.chip[aria-pressed="true"],
.chip:checked + .chip,
.chip.is-active{
  background:var(--cyan);
  border-color:var(--cyan);
  color:var(--ink);
  font-weight:700;
}

/* ---------- 响应式 ---------- */
@media (max-width:1100px){
  :root{--rail-w:84px;--gutter:20px;}
  .status-strip{gap:14px;}
}

@media (max-width:899px){
  :root{--bar-h:58px;--gutter:18px;}

  body{padding-left:0;}

  .site-header__bar{padding:0 14px 0 14px;gap:12px;}

  .status-strip{display:none;}
  .header-cta{margin-left:auto;}
  .nav-toggle{display:inline-flex;}

  .rail{
    top:var(--bar-h);
    left:0;right:0;
    bottom:auto;
    width:auto;
    max-height:calc(100vh - var(--bar-h));
    padding:10px 0 0;
    border-right:0;
    border-bottom:1px solid var(--terrace);
    background:var(--turf);
    transform:translateY(-14px);
    opacity:0;
    visibility:hidden;
    pointer-events:none;
    transition:opacity var(--t-fast),transform var(--t-fast),visibility var(--t-fast);
  }
  .rail[data-open="true"]{
    transform:none;
    opacity:1;
    visibility:visible;
    pointer-events:auto;
  }
  .rail__list{padding:0 14px 4px;gap:0;}
  .rail__link{
    flex-direction:row;
    align-items:center;
    gap:14px;
    padding:12px 10px;
    border-left:2px solid transparent;
  }
  .rail__idx{font-size:10px;width:22px;}
  .rail__label{font-size:15px;}
  .rail__foot{margin-top:0;padding:14px 24px 18px;}

  .footer__grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px 20px;}
  .footer__tagline{margin-left:0;}
}

@media (max-width:600px){
  :root{--gutter:16px;}
  .brand__sub{display:none;}
  .footer__grid{grid-template-columns:1fr;gap:22px;}
  .footer__head{flex-direction:column;align-items:flex-start;gap:12px;}
  .footer__base{gap:6px 16px;font-size:10px;}
  .footer__tagline{font-size:10px;letter-spacing:.14em;}
}

@media (max-width:420px){
  .header-cta{display:none;}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{
    transition-duration:.01ms !important;
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    scroll-behavior:auto !important;
  }
}