*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,h5,h6,p,ul,ol,li,figure,blockquote,dl,dd,address{margin:0}
ul,ol{padding:0;list-style:none}
address{font-style:normal}
img,svg,video{display:block;max-width:100%}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
a{color:inherit;text-decoration:none}
table{border-collapse:collapse;width:100%}
::selection{background:#C8102E;color:#fff}

:root{
  --ink:#07110E;
  --ink-soft:#0E1F1A;
  --pit:#17382D;
  --red:#C8102E;
  --red-bright:#E0143A;
  --yellow:#F2C230;
  --white:#EAF2EE;
  --fog:#9AA8A1;
  --line:#2E4A3E;
  --mint:#4FD1A1;
  --orange:#E36A2E;
  --rail-w:88px;
  --header-h:64px;
  --gutter:clamp(18px,4vw,56px);
  --shell-max:1380px;
  --radius:14px;
  --font-display:"Oswald","DIN Condensed","Arial Narrow","Helvetica Neue",system-ui,sans-serif;
  --font-body:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:"IBM Plex Mono","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --ease:cubic-bezier(.22,.61,.36,1);
}

body{
  min-height:100vh;
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  color:var(--white);
  background-color:var(--ink);
  background-image:
    radial-gradient(120% 62% at 88% -8%, rgba(23,56,45,.92), rgba(7,17,14,0) 62%),
    radial-gradient(90% 55% at -5% 105%, rgba(14,31,26,.95), rgba(7,17,14,0) 72%);
  background-repeat:no-repeat;
  background-attachment:fixed;
  padding-inline-start:var(--rail-w);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

h1,h2,h3,h4{font-weight:700;line-height:1.15;letter-spacing:-.01em;color:var(--white)}
p{line-height:1.75}

:where(a,button,summary,[tabindex]):focus-visible{outline:2px solid var(--yellow);outline-offset:3px;border-radius:2px}

.sr-only{
  position:absolute;width:1px;height:1px;padding:0;margin:-1px;
  overflow:hidden;clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap;border:0;
}

/* ---------------- 头部：左侧固定轨道 ---------------- */
.site-header{
  position:fixed;
  inset-block:0;
  inset-inline-start:0;
  width:var(--rail-w);
  z-index:100;
}

.skip-link{
  position:fixed;top:0;inset-inline-start:0;z-index:200;
  transform:translateY(-130%);
  padding:12px 20px;
  background:var(--yellow);
  color:#0A1611;
  font-size:13px;font-weight:700;letter-spacing:.08em;
  border-radius:0 0 10px 0;
  transition:transform .2s var(--ease);
}
.skip-link:focus,.skip-link:focus-visible{transform:translateY(0);outline-offset:-4px}

.rail{
  position:relative;
  height:100%;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:20px;
  padding:22px 8px 18px;
  background:linear-gradient(180deg,#0B1A15 0%,#07110E 52%,#0E1F1A 100%);
  border-inline-end:1px solid var(--line);
}
.rail::after{
  content:"";
  position:absolute;top:0;bottom:0;inset-inline-end:0;width:2px;
  background:repeating-linear-gradient(180deg,var(--line) 0 18px,transparent 18px 46px);
  opacity:.85;
  pointer-events:none;
}

.brand{
  flex:0 0 auto;
  display:flex;flex-direction:column;align-items:center;gap:10px;
}
.brand__mark{
  display:grid;place-items:center;
  width:46px;height:46px;
  background:var(--red);
  color:#fff;
  font-family:var(--font-display);
  font-size:22px;font-weight:700;letter-spacing:-.02em;
  border-radius:4px;
  box-shadow:0 8px 22px -6px rgba(200,16,46,.7);
  transition:background-color .2s var(--ease),transform .2s var(--ease);
}
.brand:hover .brand__mark{background:var(--red-bright);transform:translateY(-1px)}
.brand__cn{
  writing-mode:vertical-rl;text-orientation:upright;
  font-size:10px;letter-spacing:.2em;line-height:1.4;
  color:var(--fog);
}

.nav-toggle{
  display:none;
  align-items:center;gap:8px;
  padding:9px 14px;
  border:1px solid var(--line);
  border-radius:999px;
  color:var(--white);
  font-size:12px;font-weight:600;letter-spacing:.14em;
  transition:border-color .2s var(--ease),color .2s var(--ease);
}
.nav-toggle:hover{border-color:var(--yellow);color:var(--yellow)}
.nav-toggle[aria-expanded="true"]{border-color:var(--yellow);color:var(--yellow)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars{background:var(--yellow)}
.nav-toggle__bars{
  position:relative;
  width:16px;height:2px;
  background:var(--white);
  transition:background-color .2s var(--ease);
}
.nav-toggle__bars::before,
.nav-toggle__bars::after{
  content:"";position:absolute;left:0;width:16px;height:2px;background:currentColor;
  transition:transform .24s var(--ease),opacity .24s var(--ease);
}
.nav-toggle__bars::before{top:-5px}
.nav-toggle__bars::after{top:5px}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before{transform:translateY(5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after{transform:translateY(-5px) rotate(-45deg)}
.nav-toggle__label{line-height:1}

.rail__nav{
  flex:1 1 auto;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:6px;
  width:100%;
  overflow-y:auto;overflow-x:hidden;
  scrollbar-width:none;-ms-overflow-style:none;
  opacity:1;visibility:visible;
}
.rail__nav::-webkit-scrollbar{display:none}
.rail__list{display:flex;flex-direction:column;align-items:center;gap:4px;width:100%}
.rail__item{width:100%}
.rail-link{
  position:relative;
  display:flex;align-items:center;justify-content:center;
  width:100%;
  padding:12px 4px;
  border-radius:6px;
  color:var(--fog);
  transition:color .2s var(--ease),background-color .2s var(--ease);
}
.rail-link__label{
  writing-mode:vertical-rl;
  font-size:12px;font-weight:500;line-height:1.25;letter-spacing:.14em;
}
.rail-link__tick{
  position:absolute;inset-inline-start:0;top:50%;
  width:3px;height:0;
  transform:translateY(-50%);
  background:var(--line);
  border-radius:2px;
  transition:height .22s var(--ease),background-color .22s var(--ease);
}
.rail-link:hover{color:var(--white);background:rgba(23,56,45,.6)}
.rail-link:hover .rail-link__tick{height:18px;background:rgba(242,194,48,.55)}
.rail-link[aria-current="page"]{color:var(--white);background:rgba(200,16,46,.14)}
.rail-link[aria-current="page"] .rail-link__tick{height:28px;background:var(--yellow)}

.rail__cta{
  flex:0 0 auto;
  writing-mode:vertical-rl;
  margin-top:12px;
  padding:14px 7px;
  font-size:11px;font-weight:600;letter-spacing:.18em;
  color:var(--yellow);
  border:1px solid rgba(242,194,48,.45);
  border-radius:999px;
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.rail__cta:hover{background:var(--yellow);color:#0A1611;border-color:var(--yellow)}

.rail__status{
  flex:0 0 auto;
  display:flex;flex-direction:column;align-items:center;gap:8px;
  padding-top:4px;
  font-size:9px;letter-spacing:.2em;color:var(--fog);
}
.rail__status span:last-child{writing-mode:vertical-rl;line-height:1.6}
.pulse-dot{
  width:7px;height:7px;border-radius:50%;
  background:var(--mint);
  animation:pulse 2.6s ease-in-out infinite;
}
@keyframes pulse{
  0%,100%{box-shadow:0 0 0 0 rgba(79,209,161,.5)}
  50%{box-shadow:0 0 0 6px rgba(79,209,161,0)}
}

.nav-scrim{
  position:fixed;
  inset:0;
  background:rgba(4,10,8,.72);
  z-index:90;
}
.nav-scrim[hidden]{display:none}

/* ---------------- 页脚 ---------------- */
.site-footer{
  position:relative;
  margin-top:clamp(48px,8vw,96px);
  background:linear-gradient(180deg,#0B1A15 0%,#07110E 62%,#050D0A 100%);
  border-top:1px solid var(--line);
}
.site-footer::before{
  content:"";
  position:absolute;top:0;inset-inline:0;height:2px;
  background:repeating-linear-gradient(90deg,var(--red) 0 44px,transparent 44px 92px);
  opacity:.7;
  pointer-events:none;
}
.footer__inner{
  max-width:var(--shell-max);
  margin-inline:auto;
  padding:clamp(36px,5vw,68px) var(--gutter) clamp(22px,3vw,32px);
}
.footer__grid{
  display:grid;
  grid-template-columns:1.5fr .75fr .9fr;
  gap:clamp(28px,4vw,64px);
  align-items:start;
}
.footer__eyebrow{
  font-size:11px;font-weight:600;letter-spacing:.3em;text-transform:uppercase;
  color:var(--yellow);
  margin-bottom:16px;
}
.footer__wordmark{
  font-family:var(--font-display);
  font-size:clamp(30px,4.6vw,58px);
  font-weight:700;line-height:1;letter-spacing:-.02em;
  color:var(--white);
}
.footer__note{
  margin-top:16px;
  max-width:30ch;
  font-size:13px;line-height:1.8;
  color:var(--fog);
}
.footer__nav-title{
  font-size:11px;font-weight:600;letter-spacing:.28em;text-transform:uppercase;
  color:var(--fog);
  margin-bottom:16px;
}
.footer__nav-list{display:grid;gap:10px}
.footer__nav-list a{
  position:relative;
  font-size:14px;
  color:rgba(234,242,238,.8);
  transition:color .18s var(--ease),padding-inline-start .18s var(--ease);
}
.footer__nav-list a:hover{color:var(--yellow);padding-inline-start:8px}
.footer__address{
  display:grid;gap:9px;
  font-family:var(--font-mono);
  font-size:13px;line-height:1.6;
  color:rgba(234,242,238,.82);
}
.footer__hours{
  margin-top:14px;
  font-size:12px;letter-spacing:.04em;
  color:var(--fog);
}
.footer__legal{
  display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;
  margin-top:clamp(28px,4vw,48px);
  padding-top:20px;
  border-top:1px solid var(--line);
}
.footer__legal-list{display:flex;flex-wrap:wrap;gap:20px;font-size:12.5px;letter-spacing:.06em}
.footer__legal-list a{color:var(--fog);transition:color .18s var(--ease)}
.footer__legal-list a:hover{color:var(--yellow)}
.footer__icp{
  font-family:var(--font-mono);
  font-size:12px;letter-spacing:.04em;
  color:var(--fog);
}
.footer__baseline{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  margin-top:16px;
  font-size:11.5px;letter-spacing:.1em;
  color:rgba(154,168,161,.7);
}

/* ---------------- 通用布局与组件 ---------------- */
.shell{
  width:100%;
  max-width:var(--shell-max);
  margin-inline:auto;
  padding-inline:var(--gutter);
}
.section{position:relative;padding-block:clamp(40px,6vw,88px)}
.rule{height:1px;border:0;background:var(--line);margin-block:clamp(26px,4vw,52px)}

.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:11px;font-weight:600;letter-spacing:.28em;text-transform:uppercase;
  color:var(--yellow);
  line-height:1.4;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--red);flex:0 0 auto}

.display{
  font-family:var(--font-display);
  font-size:clamp(44px,7vw,120px);
  font-weight:700;line-height:.9;letter-spacing:-.02em;
  text-transform:uppercase;
  color:var(--white);
}
.vert-note{
  writing-mode:vertical-rl;
  font-size:11px;letter-spacing:.3em;text-transform:uppercase;
  color:var(--fog);
}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:14px 24px;
  border:1px solid transparent;
  border-radius:8px;
  font-size:14px;font-weight:600;letter-spacing:.04em;line-height:1.2;
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.btn--primary{background:var(--red);color:#fff;box-shadow:0 14px 30px -14px rgba(200,16,46,.9)}
.btn--primary:hover{background:var(--red-bright);transform:translateY(-1px)}
.btn--ghost{background:transparent;border-color:var(--line);color:var(--white)}
.btn--ghost:hover{border-color:var(--yellow);color:var(--yellow)}
.btn--sm{padding:9px 16px;font-size:13px;border-radius:6px}

.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;
  border:1px solid var(--line);
  border-radius:999px;
  background:rgba(23,56,45,.35);
  font-size:13px;line-height:1.2;
  color:var(--fog);
  transition:color .2s var(--ease),border-color .2s var(--ease),background-color .2s var(--ease);
}
.chip:hover{color:var(--white);border-color:var(--fog)}
.chip[aria-pressed="true"],.chip--active{
  background:var(--yellow);
  border-color:var(--yellow);
  color:#0A1611;
  font-weight:600;
}

.card{
  position:relative;
  background:linear-gradient(180deg,rgba(23,56,45,.55),rgba(14,31,26,.78));
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:clamp(18px,2.4vw,28px);
  box-shadow:0 24px 48px -34px rgba(0,0,0,.95);
}
.bento{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:clamp(14px,2vw,22px);
}
.bento__cell{grid-column:span 12;min-width:0}

.data-num{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  font-size:clamp(32px,5vw,72px);
  font-weight:600;
  line-height:.95;
  letter-spacing:-.02em;
  color:var(--white);
}
.data-num--red{color:var(--red)}
.data-num--gold{color:var(--yellow)}

.breadcrumb{font-size:12px;letter-spacing:.08em;color:var(--fog)}
.breadcrumb__list{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.breadcrumb__list a{color:var(--fog);transition:color .18s var(--ease)}
.breadcrumb__list a:hover{color:var(--yellow)}
.breadcrumb__list li+li::before{content:"/";margin-inline-end:8px;color:rgba(154,168,161,.5)}
.breadcrumb__list [aria-current="page"]{color:var(--white)}

.media{
  position:relative;
  overflow:hidden;
  aspect-ratio:16/9;
  border-radius:12px;
  border:1px solid var(--line);
  background:linear-gradient(140deg,#17382D,#0E1F1A);
}
.media img{width:100%;height:100%;object-fit:cover}
.media--wide{aspect-ratio:21/9}
.media--square{aspect-ratio:1/1}
.media--tall{aspect-ratio:4/5}
.media__caption{
  position:absolute;inset-block-end:12px;inset-inline-start:12px;
  padding:5px 10px;
  font-size:11px;letter-spacing:.12em;line-height:1.4;
  color:var(--white);
  background:rgba(7,17,14,.78);
  border:1px solid var(--line);
  border-radius:4px;
}

.read-progress{
  position:fixed;top:0;
  inset-inline-start:var(--rail-w);inset-inline-end:0;
  height:2px;
  background:linear-gradient(90deg,var(--red),var(--yellow));
  transform:scaleX(0);transform-origin:0 50%;
  z-index:120;pointer-events:none;
}
.to-top{
  position:fixed;
  inset-inline-end:18px;bottom:18px;
  z-index:70;
  display:grid;place-items:center;
  width:46px;height:46px;
  border-radius:50%;
  border:1px solid var(--line);
  background:rgba(14,31,26,.94);
  color:var(--white);
  font-size:18px;line-height:1;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s,border-color .2s var(--ease),color .2s var(--ease);
}
.to-top[data-visible]{opacity:1;visibility:visible;transform:none}
.to-top:hover{border-color:var(--yellow);color:var(--yellow)}

/* ---------------- 平板 / 移动端 ---------------- */
@media (max-width:1023px){
  body{padding-inline-start:0;background-attachment:scroll}

  .site-header{
    position:sticky;
    top:0;
    inset-block:auto;
    inset-inline:0;
    width:100%;
    background:rgba(7,17,14,.94);
    border-bottom:1px solid var(--line);
    backdrop-filter:blur(10px);
  }
  .rail{
    height:auto;min-height:var(--header-h);
    flex-direction:row;align-items:center;justify-content:space-between;
    gap:12px;
    padding:10px 16px;
    border-inline-end:0;
    background:transparent;
  }
  .rail::after{display:none}

  .brand{flex-direction:row;gap:10px}
  .brand__mark{width:38px;height:38px;font-size:18px;border-radius:3px}
  .brand__cn{
    writing-mode:horizontal-tb;text-orientation:mixed;
    font-size:13px;letter-spacing:.14em;color:var(--white);
  }

  .nav-toggle{display:inline-flex;margin-inline-start:auto}

  .rail__status{display:none}

  .rail__nav{
    position:fixed;
    top:var(--header-h);
    inset-inline:0;
    width:auto;max-height:calc(100dvh - var(--header-h));
    display:flex;flex-direction:column;align-items:stretch;justify-content:flex-start;
    gap:0;
    padding:6px 16px 26px;
    overflow-y:auto;
    background:#0B1A15;
    border-bottom:1px solid var(--line);
    box-shadow:0 30px 70px -20px rgba(0,0,0,.9);
    opacity:0;visibility:hidden;pointer-events:none;
    transform:translateY(-14px);
    transition:opacity .24s var(--ease),transform .24s var(--ease),visibility .24s;
    z-index:95;
  }
  .rail__nav[data-open]{
    opacity:1;visibility:visible;pointer-events:auto;
    transform:translateY(0);
  }
  .rail__list{flex-direction:column;align-items:stretch;gap:0;width:100%}
  .rail-link{
    justify-content:flex-start;
    padding:16px 6px;
    border-radius:0;
    border-bottom:1px solid rgba(46,74,62,.55);
  }
  .rail-link__label{
    writing-mode:horizontal-tb;
    font-size:16px;font-weight:600;letter-spacing:.06em;
    color:var(--white);
  }
  .rail-link__tick{
    position:static;transform:none;
    order:-1;
    width:3px;height:22px;
    margin-inline-end:12px;
    background:var(--line);
  }
  .rail-link:hover .rail-link__tick,
  .rail-link[aria-current="page"] .rail-link__tick{height:22px;background:var(--yellow)}
  .rail-link:hover{background:transparent;color:var(--yellow)}
  .rail-link[aria-current="page"]{background:transparent;color:var(--yellow)}

  .rail__cta{
    writing-mode:horizontal-tb;
    display:inline-flex;justify-content:center;
    margin-top:20px;padding:14px 18px;
    font-size:13px;font-weight:700;letter-spacing:.08em;
    color:#fff;background:var(--red);border-color:transparent;border-radius:8px;
  }
  .rail__cta:hover{background:var(--red-bright);color:#fff}

  .nav-scrim{
    position:fixed;
    inset:var(--header-h) 0 0;
    background:rgba(4,10,8,.72);
    z-index:90;
  }

  .read-progress{inset-inline-start:0}

  .footer__grid{grid-template-columns:1fr 1fr}
  .footer__brand{grid-column:1 / -1}
  .footer__legal{flex-direction:column;align-items:flex-start}
}

@media (max-width:639px){
  .footer__grid{grid-template-columns:1fr;gap:30px}
  .footer__legal-list{gap:14px}
  .footer__baseline{flex-direction:column;gap:6px}
  .to-top{inset-inline-end:14px;bottom:14px;width:42px;height:42px}
  .breadcrumb{font-size:11.5px}
}

@media (min-width:1024px){
  .nav-scrim{display:none}
}

@media (min-width:1024px) and (max-height:860px){
  .rail{gap:12px;padding-block:14px}
  .brand__mark{width:40px;height:40px;font-size:19px}
  .brand__cn{font-size:9px;letter-spacing:.16em}
  .rail-link{padding-block:8px}
  .rail-link__label{font-size:11px;letter-spacing:.1em}
  .rail__cta{margin-top:8px;padding-block:10px;font-size:10px}
  .rail__status{font-size:8.5px}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .pulse-dot{animation:none;box-shadow:0 0 0 3px rgba(79,209,161,.22)}
}