:root{
  --ink:#0B1F1A;
  --ink-2:#102B24;
  --ink-3:#06120F;
  --cyan:#2EE6C8;
  --teal:#1AAE9B;
  --orange:#FF6B2C;
  --acid:#E8FF5A;
  --paper:#F4F7F2;
  --haze:#9DB3AA;
  --brown:#7A3A1E;
  --line:rgba(46,230,200,.20);
  --line-2:rgba(157,179,170,.24);
  --shell:1240px;
  --pad:clamp(18px,4vw,48px);
  --radius:2px;
  --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","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
[hidden]{display:none!important;}
html{
  -webkit-text-size-adjust:100%;
  background-color:var(--ink);
  scroll-behavior:smooth;
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto;}}
body{
  margin:0;
  background:transparent;
  color:var(--paper);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-1;
  pointer-events:none;
  background:
    radial-gradient(120% 90% at 82% -12%,rgba(46,230,200,.15),transparent 60%),
    radial-gradient(90% 70% at 4% 2%,rgba(255,107,44,.10),transparent 62%),
    repeating-linear-gradient(96deg,rgba(46,230,200,.05) 0 1px,transparent 1px 118px),
    repeating-linear-gradient(0deg,rgba(157,179,170,.045) 0 1px,transparent 1px 40px);
}
img,svg{max-width:100%;display:block;}
a{color:var(--cyan);text-decoration-thickness:1px;text-underline-offset:3px;}
button{font:inherit;}
h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:800;
  line-height:1.06;
  letter-spacing:-.015em;
  color:var(--paper);
  margin:0 0 .5em;
}
h1{font-size:clamp(34px,5.2vw,64px);}
h2{font-size:clamp(26px,3.4vw,42px);}
h3{font-size:clamp(20px,2.2vw,26px);}
p{margin:0 0 1em;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;}
main [id]{scroll-margin-top:120px;}
.mono{
  font-family:var(--font-mono);
  font-feature-settings:"tnum" 1;
  letter-spacing:.06em;
}
.shell{
  width:100%;
  max-width:var(--shell);
  margin-inline:auto;
  padding-inline:var(--pad);
}
.skip-link{
  position:absolute;
  left:12px;
  top:-72px;
  z-index:200;
  padding:12px 18px;
  background:var(--acid);
  color:var(--ink-3);
  font-weight:700;
  text-decoration:none;
  border-radius:var(--radius);
  transition:top .2s ease;
}
.skip-link:focus{top:12px;}

/* ===== 头部 ===== */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:linear-gradient(180deg,var(--ink-3) 0%,var(--ink) 100%);
  border-bottom:1px solid var(--line);
}
.match-strip{
  background:var(--ink-3);
  border-bottom:1px solid rgba(46,230,200,.14);
}
.match-strip__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  min-height:38px;
  padding-block:6px;
  font-size:11.5px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--haze);
}
.match-strip__live{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--paper);
  font-weight:700;
}
.match-strip__dot{
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--orange);
  box-shadow:0 0 0 3px rgba(255,107,44,.18);
  animation:pulse 2.4s ease-in-out infinite;
}
@keyframes pulse{
  0%,100%{opacity:1;box-shadow:0 0 0 3px rgba(255,107,44,.18);}
  50%{opacity:.55;box-shadow:0 0 0 6px rgba(255,107,44,.05);}
}
.match-strip__text{color:var(--haze);}
.match-strip__meta{color:var(--teal);}
.header-bar{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px 26px;
  padding-block:12px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  text-decoration:none;
  color:var(--paper);
  min-width:0;
}
.brand__mark{
  display:grid;
  place-items:center;
  width:44px;
  height:44px;
  flex:0 0 auto;
  background:var(--ink-2);
  border:1px solid var(--cyan);
  color:var(--cyan);
  font-family:var(--font-mono);
  font-size:15px;
  font-weight:700;
  letter-spacing:.02em;
  clip-path:polygon(0 0,100% 0,100% 68%,68% 100%,0 100%);
}
.brand__text{display:flex;flex-direction:column;min-width:0;}
.brand__name{
  font-family:var(--font-display);
  font-size:21px;
  font-weight:800;
  line-height:1.15;
  letter-spacing:.01em;
  color:var(--paper);
}
.brand__sub{
  font-size:10.5px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--haze);
}
.nav-toggle{
  display:none;
  align-items:center;
  gap:10px;
  padding:9px 14px;
  background:transparent;
  border:1px solid var(--line-2);
  border-radius:var(--radius);
  color:var(--paper);
  font-size:12px;
  font-weight:700;
  letter-spacing:.16em;
  cursor:pointer;
}
.nav-toggle:hover{border-color:var(--cyan);color:var(--cyan);}
.nav-toggle__bars{display:inline-flex;flex-direction:column;gap:3px;width:16px;}
.nav-toggle__bars i{display:block;height:2px;width:100%;background:var(--cyan);transition:transform .2s ease,opacity .2s ease;}
[data-site-header][data-open] .nav-toggle__bars i:nth-child(1){transform:translateY(5px) rotate(45deg);}
[data-site-header][data-open] .nav-toggle__bars i:nth-child(2){opacity:0;}
[data-site-header][data-open] .nav-toggle__bars i:nth-child(3){transform:translateY(-5px) rotate(-45deg);}
.site-nav{
  display:flex;
  align-items:center;
  gap:22px;
}
.site-nav__list{
  display:flex;
  align-items:center;
  gap:2px;
  list-style:none;
  margin:0;
  padding:0;
}
.site-nav__link{
  display:inline-block;
  padding:9px 11px;
  color:var(--paper);
  font-size:15px;
  letter-spacing:.02em;
  text-decoration:none;
  border-bottom:2px solid transparent;
  transition:color .18s ease,border-color .18s ease,transform .18s ease;
}
.site-nav__link:hover{color:var(--cyan);border-bottom-color:var(--teal);transform:translateY(-1px);}
.site-nav__link[aria-current="page"]{color:var(--acid);border-bottom-color:var(--acid);}
.site-nav__cta{white-space:nowrap;}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;
  align-items:center;
  gap:.5em;
  padding:11px 20px;
  border:1px solid var(--cyan);
  border-radius:var(--radius);
  background:transparent;
  color:var(--cyan);
  font-size:15px;
  font-weight:700;
  letter-spacing:.04em;
  text-decoration:none;
  cursor:pointer;
  transition:transform .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn:hover{background:var(--cyan);color:var(--ink-3);transform:translateY(-1px);}
.btn--cta{background:var(--orange);border-color:var(--orange);color:var(--ink-3);}
.btn--cta:hover{background:var(--acid);border-color:var(--acid);color:var(--ink-3);}

/* ===== 页脚 ===== */
.site-footer{
  position:relative;
  margin-top:clamp(48px,8vw,96px);
  padding-top:18px;
  background:linear-gradient(162deg,var(--ink) 0%,var(--ink-3) 52%,var(--ink-3) 100%);
  border-top:1px solid var(--line);
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;
  left:0;
  right:0;
  height:16px;
  background:linear-gradient(90deg,var(--cyan) 0%,var(--teal) 42%,var(--orange) 100%);
  clip-path:polygon(0 0,100% 0,100% 0,0 100%);
  opacity:.85;
}
.footer-top{
  display:grid;
  grid-template-columns:minmax(0,1.35fr) minmax(0,1fr) minmax(0,1.1fr);
  gap:clamp(24px,4vw,56px);
  padding-block:clamp(34px,5vw,64px);
}
.footer-brand .brand{margin-bottom:16px;}
.footer-tagline{
  font-family:var(--font-display);
  font-size:clamp(19px,2vw,24px);
  font-weight:700;
  line-height:1.3;
  color:var(--paper);
  margin:0 0 12px;
  max-width:22em;
}
.footer-note{
  font-size:14px;
  line-height:1.65;
  color:var(--haze);
  max-width:34em;
  margin:0;
}
.footer-heading{
  margin:0 0 16px;
  padding-bottom:10px;
  border-bottom:1px solid var(--line-2);
  font-size:11.5px;
  font-weight:700;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--teal);
}
.footer-nav__list{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:8px 18px;
  list-style:none;
  margin:0;
  padding:0;
}
.footer-nav__list a{
  color:var(--paper);
  font-size:15px;
  text-decoration:none;
  border-bottom:1px solid transparent;
  transition:color .18s ease,border-color .18s ease;
}
.footer-nav__list a:hover{color:var(--acid);border-bottom-color:var(--acid);}
.footer-contact__list{margin:0;}
.footer-contact__row{
  display:grid;
  grid-template-columns:56px minmax(0,1fr);
  gap:10px;
  padding:7px 0;
  border-bottom:1px dotted rgba(157,179,170,.22);
}
.footer-contact__row dt{
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.1em;
  color:var(--haze);
  text-transform:uppercase;
}
.footer-contact__row dd{
  margin:0;
  font-family:var(--font-mono);
  font-size:13.5px;
  font-weight:600;
  line-height:1.55;
  color:var(--paper);
  overflow-wrap:anywhere;
}
.footer-base{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:10px 24px;
  padding-block:18px 24px;
  border-top:1px solid var(--line-2);
  font-size:13px;
  color:var(--haze);
}
.footer-legal{margin:0;}
.footer-base__nav{
  display:flex;
  flex-wrap:wrap;
  gap:6px 18px;
  margin:0;
}
.footer-base__nav a{color:var(--haze);text-decoration:none;}
.footer-base__nav a:hover{color:var(--cyan);}
.to-top{
  position:fixed;
  right:clamp(14px,3vw,28px);
  bottom:clamp(14px,3vw,28px);
  z-index:70;
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:10px 16px;
  background:rgba(6,18,15,.94);
  border:1px solid var(--cyan);
  border-radius:var(--radius);
  color:var(--cyan);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.1em;
  cursor:pointer;
  transition:background .18s ease,color .18s ease,transform .18s ease;
}
.to-top:hover{background:var(--cyan);color:var(--ink-3);transform:translateY(-2px);}
.to-top__arrow{font-size:14px;line-height:1;}

/* ===== 内容基础组件 ===== */
.section{padding-block:clamp(40px,6vw,88px);}
.section--tight{padding-block:clamp(24px,4vw,48px);}
.section-head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:14px 24px;
  margin-bottom:clamp(20px,3vw,36px);
}
.section-title{
  font-family:var(--font-display);
  font-size:clamp(26px,3.4vw,42px);
  font-weight:800;
  line-height:1.06;
  letter-spacing:-.015em;
  margin:0;
  color:var(--paper);
}
.lede{
  max-width:36em;
  font-size:clamp(16px,1.5vw,18px);
  line-height:1.75;
  color:var(--haze);
}
.kicker{
  display:inline-flex;
  align-items:center;
  gap:10px;
  margin-bottom:14px;
  font-family:var(--font-mono);
  font-size:11.5px;
  font-weight:700;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--cyan);
}
.kicker::before{
  content:"";
  display:block;
  width:26px;
  height:2px;
  background:var(--cyan);
}
.prose{max-width:38em;color:var(--haze);}
.prose p{margin:0 0 1em;}
.prose h2,.prose h3{color:var(--paper);margin-top:1.6em;}
.prose strong{color:var(--paper);font-weight:700;}
.prose a{color:var(--cyan);}
.grid{display:grid;gap:clamp(16px,2.4vw,28px);}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr));}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr));}
.grid--sidebar{grid-template-columns:minmax(0,1fr) 300px;align-items:start;}
.card{
  position:relative;
  padding:clamp(18px,2.4vw,28px);
  background:var(--ink-2);
  border:1px solid var(--line-2);
  border-radius:var(--radius);
}
.card--paper{
  background:var(--paper);
  color:var(--ink-3);
  border-color:var(--ink-3);
  box-shadow:6px 6px 0 rgba(46,230,200,.28);
}
.card--paper h2,.card--paper h3{color:var(--ink-3);}
.tag{
  display:inline-flex;
  align-items:center;
  gap:.4em;
  padding:3px 10px;
  border:1px solid var(--line-2);
  border-radius:999px;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--haze);
  transition:transform .18s ease,color .18s ease,border-color .18s ease;
}
.tag:hover{transform:translateY(-1px);}
.tag--hot{border-color:var(--orange);color:var(--orange);}
.breadcrumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  list-style:none;
  margin:0 0 18px;
  padding:0;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.08em;
  color:var(--haze);
}
.breadcrumbs li:not(:first-child)::before{
  content:"/";
  margin-right:8px;
  color:var(--teal);
}
.breadcrumbs a{color:var(--haze);text-decoration:none;}
.breadcrumbs a:hover{color:var(--cyan);}
.media-frame{
  position:relative;
  display:block;
  width:100%;
  aspect-ratio:16/9;
  overflow:hidden;
  background:linear-gradient(150deg,var(--ink-2),var(--ink-3));
  border:1px solid var(--line-2);
  border-radius:var(--radius);
}
.media-frame img{width:100%;height:100%;object-fit:cover;}
.media-frame::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background:linear-gradient(140deg,rgba(46,230,200,.30) 0%,rgba(122,58,30,.16) 50%,rgba(255,107,44,.34) 100%);
  mix-blend-mode:screen;
}
.media-frame--wide{aspect-ratio:21/9;}
.media-frame--portrait{aspect-ratio:3/4;}
.toc{
  display:flex;
  flex-direction:column;
  gap:2px;
  border-left:1px solid var(--line-2);
}
.toc__item{
  position:relative;
  margin-left:-1px;
  padding:10px 12px;
  border:0;
  border-left:2px solid transparent;
  background:none;
  color:var(--haze);
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.04em;
  text-align:left;
  cursor:pointer;
  transition:color .18s ease,background .18s ease,border-color .18s ease;
}
.toc__item:hover{color:var(--paper);background:rgba(46,230,200,.07);}
.toc__item[aria-current="true"]{
  color:var(--acid);
  border-left-color:var(--acid);
  background:rgba(232,255,90,.07);
}
[data-reveal]{
  opacity:0;
  transform:translateY(14px);
  transition:opacity .5s ease,transform .5s ease;
}
[data-reveal].is-visible{opacity:1;transform:none;}

/* ===== 响应式 ===== */
@media (max-width:980px){
  .nav-toggle{display:inline-flex;}
  .site-nav{
    display:none;
    flex-basis:100%;
    flex-direction:column;
    align-items:stretch;
    gap:14px;
    padding:10px 0 18px;
    border-top:1px solid var(--line);
  }
  [data-site-header][data-open] .site-nav{display:flex;}
  .site-nav__list{flex-direction:column;align-items:stretch;gap:0;}
  .site-nav__link{
    display:block;
    padding:13px 4px;
    border-bottom:1px solid var(--line-2);
    border-left:2px solid transparent;
    padding-left:14px;
  }
  .site-nav__link[aria-current="page"]{
    border-bottom-color:var(--line-2);
    border-left-color:var(--acid);
    background:rgba(232,255,90,.06);
  }
  .site-nav__cta{align-self:flex-start;margin-top:4px;}
  .footer-top{grid-template-columns:minmax(0,1fr);}
  .grid--2,.grid--3,.grid--sidebar{grid-template-columns:minmax(0,1fr);}
  .match-strip__meta{display:none;}
}
@media (max-width:640px){
  body{font-size:16px;}
  .match-strip__inner{font-size:10.5px;letter-spacing:.1em;}
  .match-strip__text{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:58%;}
  .brand__mark{width:38px;height:38px;font-size:13px;}
  .brand__name{font-size:18px;}
  .brand__sub{font-size:9.5px;letter-spacing:.12em;}
  .footer-nav__list{grid-template-columns:minmax(0,1fr);}
  .footer-base{flex-direction:column;align-items:flex-start;}
  .to-top{padding:9px 13px;font-size:11px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms!important;
    animation-iteration-count:1!important;
    transition-duration:.001ms!important;
  }
  [data-reveal]{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}