:root{
  --ink:#071A14;
  --ink-2:#0E2E24;
  --ink-3:#174A39;
  --cyan:#3DF5D0;
  --mint:#9FFCE8;
  --amber:#FFB13B;
  --amber-deep:#C97712;
  --chalk:#F2F7F4;
  --mist:#A8BDB4;
  --indigo:#211A3A;
  --wine:#4A1E2B;
  --line:rgba(159,252,232,.16);
  --line-strong:rgba(61,245,208,.42);
  --shell:1200px;
  --gutter:clamp(18px,4vw,44px);
  --cut:14px;
  --ease:cubic-bezier(.22,.7,.28,1);
  --font-display:"Barlow Condensed","Oswald","Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --font-body:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono",ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,monospace;
}

*,*::before,*::after{box-sizing:border-box}
html{background:var(--ink);-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,h5,p,ul,ol,li,dl,dt,dd,figure,blockquote{margin:0}
ul,ol{list-style:none;padding:0}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
img,svg,video{display:block;max-width:100%}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}

body{
  min-height:100vh;
  background-color:var(--ink);
  color:var(--chalk);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.012em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-1;
  pointer-events:none;
  background:
    radial-gradient(760px 520px at 78% 0%,rgba(61,245,208,.12),transparent 62%),
    radial-gradient(680px 520px at 4% 34%,rgba(255,177,59,.08),transparent 66%),
    repeating-linear-gradient(115deg,rgba(159,252,232,.035) 0 1px,transparent 1px 88px);
}

h1,h2,h3,h4{font-family:var(--font-display);font-weight:800;line-height:1.1;letter-spacing:-.01em;color:var(--chalk)}
h1{font-size:clamp(34px,5.4vw,58px)}
h2{font-size:clamp(26px,3.4vw,38px)}
h3{font-size:clamp(19px,2vw,24px)}
h4{font-size:17px;letter-spacing:.02em}
strong{color:var(--chalk);font-weight:700}

.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:.06em}
.shell{width:100%;max-width:var(--shell);margin-inline:auto;padding-inline:var(--gutter)}

/* ---------- 通用章节与色带 ---------- */
.section{position:relative;padding-block:clamp(52px,8vw,104px)}
.section--deep{background:var(--ink-2)}
.section--indigo{background:var(--indigo);border-block:1px solid rgba(159,252,232,.10)}
.section--wine{background:var(--wine);border-block:1px solid rgba(255,177,59,.14)}

.grid{display:grid;gap:clamp(18px,2.6vw,32px)}
.grid--12{grid-template-columns:repeat(12,minmax(0,1fr))}

.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.22em;
  text-transform:uppercase;color:var(--cyan);
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--amber)}

.lede{font-size:clamp(16px,1.5vw,19px);line-height:1.85;color:var(--mist);max-width:62ch}

.rule-slant{
  display:block;width:100%;height:clamp(20px,4vw,44px);
  background:repeating-linear-gradient(115deg,rgba(61,245,208,.22) 0 1px,transparent 1px 12px);
  opacity:.5;
}

.cut-panel{
  position:relative;
  background:var(--ink-2);
  border:1px solid var(--line);
  padding:clamp(18px,2.6vw,32px);
  clip-path:polygon(0 0,100% 0,100% calc(100% - var(--cut)),calc(100% - var(--cut)) 100%,0 100%);
}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 9px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;
  color:var(--mint);
  background:rgba(61,245,208,.07);
  border:1px solid rgba(61,245,208,.3);
}
.tag--amber{color:var(--amber);background:rgba(255,177,59,.10);border-color:rgba(255,177,59,.4)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 20px;
  font-size:14px;font-weight:700;line-height:1;letter-spacing:.02em;
  border:1px solid transparent;border-radius:2px;
  white-space:nowrap;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn--primary{background:var(--amber);border-color:var(--amber);color:#0A1B14}
.btn--primary:hover{background:var(--amber-deep);border-color:var(--amber-deep);color:#0A1B14}
.btn--ghost{background:rgba(61,245,208,.06);border-color:rgba(61,245,208,.34);color:var(--mint)}
.btn--ghost:hover{background:rgba(61,245,208,.16);border-color:var(--cyan);color:var(--chalk)}
.btn--quiet{background:transparent;border-color:var(--line);color:var(--mist)}
.btn--quiet:hover{border-color:var(--line-strong);color:var(--chalk)}

/* ---------- 面包屑与正文 ---------- */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding-block:16px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--mist);
}
.breadcrumb a{color:var(--mist);transition:color .2s}
.breadcrumb a:hover{color:var(--cyan)}
.breadcrumb__sep{color:rgba(159,252,232,.35)}
.breadcrumb [aria-current="page"]{color:var(--chalk)}

.prose{max-width:68ch;font-size:clamp(16px,1.4vw,17px);line-height:1.85;color:var(--chalk)}
.prose > * + *{margin-top:1.05em}
.prose h2,.prose h3{margin-top:1.9em}
.prose ul li{position:relative;padding-left:18px;margin-top:.4em}
.prose ul li::before{content:"";position:absolute;left:0;top:.78em;width:8px;height:2px;background:var(--cyan)}
.prose a{color:var(--cyan);border-bottom:1px solid rgba(61,245,208,.35)}
.prose a:hover{border-bottom-color:var(--cyan)}

/* ---------- 图片容器 ---------- */
.media-frame{
  position:relative;display:block;width:100%;overflow:hidden;
  aspect-ratio:16/10;
  background:
    repeating-linear-gradient(125deg,rgba(159,252,232,.06) 0 1px,transparent 1px 18px),
    linear-gradient(140deg,var(--ink-3),var(--ink-2) 58%,#0A211A);
  border:1px solid rgba(159,252,232,.14);
  clip-path:polygon(0 0,100% 0,100% calc(100% - 18px),calc(100% - 18px) 100%,0 100%);
}
.media-frame--wide{aspect-ratio:21/9}
.media-frame--tall{aspect-ratio:4/5}
.media-frame--square{aspect-ratio:1/1}
.media-frame__img{width:100%;height:100%;object-fit:cover}
.media-frame::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(160deg,rgba(7,26,20,0) 45%,rgba(7,26,20,.55));
}
.media-frame__caption{
  position:absolute;left:14px;bottom:12px;z-index:1;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--mint);
}

/* ---------- 显现动效协议 ---------- */
.js [data-reveal]{opacity:0;transform:translateY(16px);transition:opacity .65s var(--ease),transform .65s var(--ease)}
.js [data-reveal].is-revealed{opacity:1;transform:none}

/* ==========================================================================
   头部
   ========================================================================== */
.site-header{
  position:sticky;top:0;z-index:100;
  background:linear-gradient(180deg,rgba(7,26,20,.78),rgba(7,26,20,0));
  border-bottom:1px solid transparent;
  transition:background .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.site-header[data-scrolled="true"]{
  background:rgba(10,32,25,.97);
  border-bottom-color:var(--line);
  box-shadow:0 22px 44px -30px #000;
}

.skip-link{
  position:absolute;left:14px;top:10px;z-index:200;
  padding:10px 16px;border-radius:2px;
  background:var(--cyan);color:#062018;
  font-size:13px;font-weight:700;
  transform:translateY(-180%);
  transition:transform .2s var(--ease);
}
.skip-link:focus{transform:translateY(0)}

.ticker{
  background:rgba(61,245,208,.06);
  border-bottom:1px solid rgba(61,245,208,.14);
  font-family:var(--font-mono);
  font-size:11px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--mint);
}
.ticker__inner{
  display:flex;align-items:center;gap:16px;flex-wrap:wrap;
  width:100%;max-width:var(--shell);margin-inline:auto;
  padding:8px var(--gutter);
}
.ticker__label{color:var(--cyan);white-space:nowrap}
.ticker__spacer{flex:1 1 auto}
.ticker__link{color:var(--chalk);padding-bottom:1px;border-bottom:1px solid transparent;transition:color .2s,border-color .2s}
.ticker__link:hover,.ticker__link:focus-visible{color:var(--cyan);border-bottom-color:var(--cyan)}
.ticker__link--alt{color:var(--amber)}
.ticker__link--alt:hover,.ticker__link--alt:focus-visible{color:var(--amber-deep);border-bottom-color:var(--amber)}

.masthead{position:relative}
.masthead__inner{
  display:flex;align-items:center;gap:clamp(14px,2.6vw,36px);
  width:100%;max-width:var(--shell);margin-inline:auto;
  padding:13px var(--gutter);
}

.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto}
.brand__mark{
  display:inline-flex;flex-direction:column;justify-content:center;gap:3px;
  width:32px;height:32px;padding:0 6px;
  background:var(--cyan);
  clip-path:polygon(0 0,100% 0,100% 68%,70% 100%,0 100%);
  transition:background .25s var(--ease);
}
.brand:hover .brand__mark{background:var(--amber)}
.brand__mark i{display:block;height:3px;background:var(--ink);border-radius:1px}
.brand__mark i:nth-child(2){width:80%}
.brand__mark i:nth-child(3){width:55%}
.brand__text{display:flex;flex-direction:column;line-height:1.15}
.brand__name{font-family:var(--font-display);font-weight:800;font-size:19px;letter-spacing:.03em}
.brand__sub{
  font-family:var(--font-mono);font-size:10px;letter-spacing:.2em;
  text-transform:uppercase;color:var(--mint);opacity:.8;
}

.primary-nav{margin-inline-start:auto}
.primary-nav__list{display:flex;align-items:center;gap:clamp(2px,1.2vw,16px)}
.primary-nav__link{
  position:relative;display:inline-flex;align-items:baseline;gap:6px;
  padding:10px 4px;font-size:14px;color:var(--mist);
  transition:color .2s var(--ease);
}
.primary-nav__link .nav-index{
  font-family:var(--font-mono);font-size:10px;letter-spacing:.06em;
  color:rgba(159,252,232,.5);transition:color .2s var(--ease);
}
.primary-nav__link::after{
  content:"";position:absolute;left:0;right:0;bottom:2px;height:2px;
  background:var(--cyan);transform:scaleX(0);transform-origin:left;
  transition:transform .25s var(--ease);
}
.primary-nav__link:hover,.primary-nav__link:focus-visible{color:var(--chalk)}
.primary-nav__link:hover .nav-index,.primary-nav__link:focus-visible .nav-index{color:var(--cyan)}
.primary-nav__link:hover::after,.primary-nav__link:focus-visible::after{transform:scaleX(1)}
.primary-nav__link[aria-current="page"]{color:var(--chalk)}
.primary-nav__link[aria-current="page"] .nav-index{color:var(--amber)}
.primary-nav__link[aria-current="page"]::after{transform:scaleX(1);background:var(--amber)}

.masthead__actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}

.nav-toggle{
  display:none;align-items:center;gap:10px;
  padding:9px 14px;border:1px solid rgba(61,245,208,.3);border-radius:2px;
  color:var(--mint);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  transition:border-color .2s,color .2s;
}
.nav-toggle:hover{border-color:var(--cyan);color:var(--chalk)}
.nav-toggle__bars{display:grid;gap:4px;width:16px}
.nav-toggle__bars span{display:block;height:2px;background:currentColor;transition:transform .25s var(--ease),opacity .25s var(--ease)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:first-child{transform:translateY(3px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:last-child{transform:translateY(-3px) rotate(-45deg)}

.progress{position:absolute;left:0;right:0;bottom:0;height:2px;background:rgba(159,252,232,.08);overflow:hidden}
.progress__bar{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--cyan),var(--amber));transition:width .12s linear}

/* ==========================================================================
   侧边悬浮比分条
   ========================================================================== */
.scorebar{
  position:fixed;top:calc(50% - 78px);right:14px;z-index:80;
  display:flex;flex-direction:column;gap:10px;
  width:138px;padding:12px 10px;
  background:rgba(14,46,36,.95);
  border:1px solid rgba(61,245,208,.22);
  clip-path:polygon(0 0,100% 0,100% calc(100% - 14px),calc(100% - 14px) 100%,0 100%);
}
.scorebar__head{
  display:flex;align-items:center;gap:7px;
  font-family:var(--font-mono);font-size:10px;letter-spacing:.18em;
  text-transform:uppercase;color:var(--mint);
}
.scorebar__pulse{
  width:6px;height:6px;border-radius:50%;background:var(--cyan);
  box-shadow:0 0 0 0 rgba(61,245,208,.55);
  animation:scorebar-pulse 2.4s infinite;
}
@keyframes scorebar-pulse{
  0%{box-shadow:0 0 0 0 rgba(61,245,208,.5)}
  70%{box-shadow:0 0 0 8px rgba(61,245,208,0)}
  100%{box-shadow:0 0 0 0 rgba(61,245,208,0)}
}
.scorebar__list{display:flex;flex-direction:column;gap:4px}
.scorebar__item{
  display:flex;flex-direction:column;gap:2px;
  padding:6px 8px;
  border-left:2px solid rgba(159,252,232,.18);
  transition:border-color .25s var(--ease),background .25s var(--ease);
}
.scorebar__item[data-active="true"]{border-left-color:var(--cyan);background:rgba(61,245,208,.08)}
.scorebar__key{font-size:11px;color:var(--mist)}
.scorebar__value{font-family:var(--font-mono);font-size:12px;color:var(--chalk);letter-spacing:.04em}
.scorebar__cta{
  display:block;text-align:center;
  padding:8px 6px;
  font-size:12px;font-weight:700;color:#0A1B14;
  background:var(--amber);
  clip-path:polygon(0 0,100% 0,100% calc(100% - 8px),calc(100% - 8px) 100%,0 100%);
  transition:background .2s var(--ease);
}
.scorebar__cta:hover{background:var(--amber-deep)}
.scorebar__cta:focus-visible{outline:none;box-shadow:inset 0 0 0 2px #062018}

/* ==========================================================================
   页脚
   ========================================================================== */
.site-footer{
  position:relative;
  margin-top:clamp(64px,9vw,140px);
  padding:clamp(44px,6vw,76px) 0 clamp(26px,4vw,40px);
  background:linear-gradient(180deg,var(--ink-2),#0A211A 68%,var(--ink));
  border-top:1px solid rgba(61,245,208,.18);
  color:var(--mist);
  overflow:hidden;
}
.footer__slant{
  position:absolute;top:0;right:-40px;width:min(48%,540px);height:100%;
  background:linear-gradient(200deg,rgba(61,245,208,.10),transparent 62%);
  clip-path:polygon(24% 0,100% 0,100% 100%,0 100%);
  pointer-events:none;
}
.site-footer .shell{position:relative;z-index:1}

.footer__top{
  display:grid;
  grid-template-columns:minmax(240px,1fr) minmax(0,1.4fr);
  gap:clamp(28px,5vw,64px);
  align-items:start;
}
.footer__brand{display:flex;flex-direction:column;gap:14px}
.footer__logo{display:inline-flex;align-items:center;gap:11px;align-self:flex-start}
.footer__mark{
  display:inline-flex;flex-direction:column;justify-content:center;gap:3px;
  width:30px;height:30px;padding:0 6px;
  background:var(--cyan);
  clip-path:polygon(0 0,100% 0,100% 68%,70% 100%,0 100%);
}
.footer__mark i{display:block;height:3px;background:var(--ink-2);border-radius:1px}
.footer__mark i:nth-child(2){width:80%}
.footer__mark i:nth-child(3){width:55%}
.footer__brandName{font-family:var(--font-display);font-weight:800;font-size:21px;letter-spacing:.03em;color:var(--chalk)}
.footer__tagline{font-size:14px;line-height:1.8;color:var(--mist);max-width:32ch}

.footer__cols{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:clamp(20px,4vw,48px)}
.footer__colTitle{
  display:flex;align-items:baseline;gap:8px;
  margin-bottom:12px;
  font-family:var(--font-mono);font-size:11px;font-weight:500;
  letter-spacing:.2em;text-transform:uppercase;color:var(--mint);
}
.footer__colTitle .mono{color:var(--amber);font-size:10px}
.footer__links{display:flex;flex-direction:column;gap:2px}
.footer__link{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 0;font-size:14px;color:var(--mist);
  transition:color .2s var(--ease),transform .2s var(--ease);
}
.footer__link::before{
  content:"";width:10px;height:1px;background:currentColor;opacity:.5;
  transition:width .2s var(--ease),opacity .2s var(--ease);
}
.footer__link:hover,.footer__link:focus-visible{color:var(--cyan);transform:translateX(2px)}
.footer__link:hover::before,.footer__link:focus-visible::before{width:16px;opacity:1}

.footer__contact{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));
  gap:16px 28px;
  margin-top:clamp(28px,4vw,48px);
  padding-top:clamp(22px,3vw,32px);
  border-top:1px solid rgba(159,252,232,.12);
}
.footer__contactItem{display:flex;flex-direction:column;gap:4px;min-width:0}
.footer__contactLabel{
  font-family:var(--font-mono);font-size:10px;letter-spacing:.18em;
  text-transform:uppercase;color:rgba(159,252,232,.55);
}
.footer__contactValue{font-size:14px;color:var(--chalk);word-break:break-word}
.footer__contactValue--mono{font-family:var(--font-mono);font-size:13px;letter-spacing:.02em}

.footer__legal{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px 24px;
  margin-top:clamp(24px,3vw,36px);
  padding-top:18px;
  border-top:1px solid rgba(159,252,232,.10);
  font-size:12px;color:var(--mist);
}
.footer__copyright{font-size:12px}
.footer__legalLinks{display:flex;flex-wrap:wrap;gap:16px}
.footer__legalLinks a{
  color:var(--mist);padding-bottom:1px;
  border-bottom:1px solid transparent;
  transition:color .2s,border-color .2s;
}
.footer__legalLinks a:hover,.footer__legalLinks a:focus-visible{color:var(--cyan);border-bottom-color:rgba(61,245,208,.45)}
.footer__icp{margin-inline-start:auto;font-family:var(--font-mono);font-size:12px;letter-spacing:.04em;color:var(--mist)}

/* ==========================================================================
   响应式
   ========================================================================== */
@media (max-width:1080px){
  .scorebar{
    top:auto;bottom:0;left:0;right:0;
    width:100%;flex-direction:row;align-items:center;gap:12px;
    padding:8px var(--gutter);
    border:0;border-top:1px solid rgba(61,245,208,.2);
    clip-path:none;
  }
  .scorebar__list{flex:1 1 auto;flex-direction:row;gap:10px;overflow-x:auto;scrollbar-width:none}
  .scorebar__list::-webkit-scrollbar{display:none}
  .scorebar__item{
    flex-direction:row;align-items:baseline;gap:6px;
    padding:2px 2px 4px;border-left:0;
    border-bottom:2px solid transparent;white-space:nowrap;
  }
  .scorebar__item[data-active="true"]{border-bottom-color:var(--cyan);background:none}
  .scorebar__cta{flex:0 0 auto;padding:7px 12px}
  body{padding-bottom:58px}
}

@media (max-width:1000px){
  .footer__top{grid-template-columns:1fr}
}

@media (max-width:900px){
  .primary-nav{
    position:absolute;top:100%;left:0;right:0;
    margin:0;padding:6px var(--gutter) 16px;
    background:var(--ink-2);
    border-top:1px solid var(--line);
    border-bottom:1px solid var(--line);
    box-shadow:0 34px 54px -34px #000;
    display:none;
  }
  .primary-nav[data-open="true"]{display:block}
  .primary-nav__list{flex-direction:column;align-items:stretch;gap:0}
  .primary-nav__link{
    padding:14px 4px;font-size:16px;
    border-bottom:1px solid rgba(159,252,232,.08);
  }
  .primary-nav__link::after{display:none}
  .primary-nav__link[aria-current="page"]{color:var(--cyan)}
  .nav-toggle{display:inline-flex}
  .masthead__actions .btn--ghost{display:none}
  .masthead__actions{margin-inline-start:auto}
  .primary-nav{margin-inline-start:0}
  .grid--12{grid-template-columns:repeat(6,minmax(0,1fr))}
}

@media (max-width:640px){
  .masthead__inner{gap:10px;padding:10px var(--gutter)}
  .brand__sub{display:none}
  .brand__name{font-size:17px}
  .masthead__actions .btn--primary{padding:10px 14px;font-size:13px}
  .nav-toggle__text{display:none}
  .nav-toggle{padding:10px 12px}
  .ticker__inner{gap:10px;font-size:10px;letter-spacing:.12em}
  .ticker__spacer{flex:1 1 100%;height:0}
  .footer__cols{grid-template-columns:1fr;gap:22px}
  .footer__legal{flex-direction:column;align-items:flex-start;gap:10px}
  .footer__icp{margin-inline-start:0}
  .grid--12{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cut-panel{padding:16px}
}

/* ==========================================================================
   可访问性
   ========================================================================== */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .scorebar__pulse{animation:none}
  .js [data-reveal]{opacity:1;transform:none}
  .btn:hover{transform:none}
  .footer__link:hover{transform:none}
}