:root{
  --pitch-void:#07110D;
  --turf-deep:#0B1F18;
  --panel-ink:#102A21;
  --line-moss:#1E4A3A;
  --bone:#F4F1E8;
  --fog:#A8B8AE;
  --signal:#4DFFB8;
  --signal-dim:#27C48C;
  --amber:#FFB347;
  --amber-deep:#C97A16;

  --shell:1180px;
  --gutter:20px;

  --font-display:"Barlow Condensed","Oswald","Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-body:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:"IBM Plex Mono","JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",monospace;

  --shadow-hard:6px 6px 0 rgba(0,0,0,.55);
  --shadow-lift:8px 10px 0 rgba(0,0,0,.5);
}

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

html{
  -webkit-text-size-adjust:100%;
  text-size-adjust:100%;
  scroll-behavior:smooth;
  background-color:var(--pitch-void);
}

body{
  margin:0;
  min-height:100vh;
  background-color:var(--pitch-void);
  background-image:
    radial-gradient(760px 420px at 88% -8%, rgba(39,196,140,.12), transparent 70%),
    radial-gradient(640px 380px at 0% 104%, rgba(255,179,71,.055), transparent 72%);
  color:var(--bone);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.8;
  letter-spacing:.012em;
  -webkit-font-smoothing:antialiased;
}

img,
svg,
video{
  display:block;
  max-width:100%;
  height:auto;
}

h1,
h2,
h3,
h4{
  margin:0;
  font-family:var(--font-display);
  font-weight:800;
  line-height:1.1;
  letter-spacing:-.005em;
  color:var(--bone);
}

p,
figure,
blockquote,
ul,
ol{
  margin:0;
}

ul,
ol{
  padding:0;
  list-style:none;
}

button{
  font:inherit;
  color:inherit;
  background:none;
  border:0;
  padding:0;
  cursor:pointer;
}

a{
  color:var(--signal);
  text-decoration:none;
  transition:color .18s ease,border-color .18s ease;
}

a:hover{
  color:var(--amber);
}

strong{font-weight:700;color:var(--bone)}

::selection{
  background:var(--signal);
  color:var(--pitch-void);
}

:focus-visible{
  outline:2px solid var(--signal);
  outline-offset:2px;
  border-radius:2px;
}

.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;
  border:0;
}

.skip-link{
  position:fixed;
  top:0;
  left:0;
  z-index:120;
  transform:translateY(-150%);
  padding:12px 18px;
  background:var(--signal);
  color:var(--pitch-void);
  font-family:var(--font-mono);
  font-size:13px;
  font-weight:600;
  letter-spacing:.08em;
  border:2px solid var(--pitch-void);
  transition:transform .18s ease;
}

.skip-link:focus,
.skip-link:hover{
  transform:translateY(0);
  color:var(--pitch-void);
  outline:2px solid var(--bone);
  outline-offset:2px;
}

/* ---------- 头部 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:50;
  background:var(--turf-deep);
  border-bottom:2px solid var(--line-moss);
  transition:background-color .2s ease,box-shadow .2s ease;
}

.site-header[data-scrolled]{
  background:var(--pitch-void);
  box-shadow:0 14px 26px -18px rgba(0,0,0,.95);
}

.masthead{
  background:var(--turf-deep);
  border-bottom:1px solid var(--line-moss);
}

.masthead__inner{
  width:100%;
  max-width:var(--shell);
  margin-inline:auto;
  padding:14px var(--gutter);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px 16px;
}

.brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  color:var(--bone);
  min-height:44px;
}

.brand:hover{color:var(--bone)}

.brand__mark{
  flex:none;
  display:grid;
  place-items:center;
  width:40px;
  height:40px;
  border:2px solid var(--signal);
  color:var(--signal);
  font-family:var(--font-display);
  font-weight:800;
  font-size:20px;
  line-height:1;
  box-shadow:3px 3px 0 rgba(77,255,184,.22);
}

.brand__body{
  display:flex;
  flex-direction:column;
  gap:2px;
  line-height:1.25;
}

.brand__name{
  font-family:var(--font-display);
  font-weight:800;
  font-size:20px;
  letter-spacing:.03em;
  color:var(--bone);
}

.brand__tagline{
  font-size:12px;
  letter-spacing:.06em;
  color:var(--fog);
}

.masthead__meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
}

.matchday-signal{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 10px;
  background:var(--pitch-void);
  border:1px solid var(--line-moss);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.06em;
  color:var(--fog);
}

.matchday-signal__label{
  text-transform:uppercase;
  letter-spacing:.14em;
  color:var(--fog);
}

.matchday-signal__value{
  color:var(--amber);
  font-weight:600;
  font-variant-numeric:tabular-nums;
}

.signal-dot{
  flex:none;
  width:8px;
  height:8px;
  background:var(--signal);
  border-radius:50%;
  animation:signal-pulse 2.4s ease-out infinite;
}

@keyframes signal-pulse{
  0%{box-shadow:0 0 0 0 rgba(77,255,184,.55)}
  70%{box-shadow:0 0 0 8px rgba(77,255,184,0)}
  100%{box-shadow:0 0 0 0 rgba(77,255,184,0)}
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:10px 18px;
  font-family:var(--font-mono);
  font-size:13px;
  font-weight:600;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--pitch-void);
  background:var(--signal);
  border:2px solid var(--signal);
  box-shadow:4px 4px 0 rgba(0,0,0,.55);
  transition:transform .16s ease,box-shadow .16s ease,background-color .16s ease,color .16s ease,border-color .16s ease;
}

.btn:hover{
  background:var(--signal-dim);
  border-color:var(--signal-dim);
  color:var(--pitch-void);
  transform:translate(-1px,-1px);
  box-shadow:5px 5px 0 rgba(0,0,0,.6);
}

.btn:active{
  transform:translate(1px,1px);
  box-shadow:2px 2px 0 rgba(0,0,0,.55);
}

.btn--ghost{
  background:transparent;
  color:var(--signal);
  border-color:var(--line-moss);
}

.btn--ghost:hover{
  background:rgba(77,255,184,.1);
  border-color:var(--signal);
  color:var(--signal);
}

.btn--amber{
  background:var(--amber);
  border-color:var(--amber);
  color:var(--pitch-void);
}

.btn--amber:hover{
  background:var(--amber-deep);
  border-color:var(--amber-deep);
  color:var(--pitch-void);
}

.btn--sm{
  min-height:36px;
  padding:6px 12px;
  font-size:11px;
  box-shadow:3px 3px 0 rgba(0,0,0,.5);
}

.nav-toggle{
  display:none;
  align-items:center;
  gap:8px;
  min-height:44px;
  padding:8px 12px;
  background:var(--pitch-void);
  border:2px solid var(--line-moss);
  color:var(--bone);
  transition:border-color .18s ease,color .18s ease;
}

.nav-toggle:hover{
  border-color:var(--signal);
  color:var(--signal);
}

.nav-toggle__bars{
  position:relative;
  display:block;
  width:16px;
  height:2px;
  background:currentColor;
}

.nav-toggle__bars::before,
.nav-toggle__bars::after{
  content:"";
  position:absolute;
  left:0;
  width:16px;
  height:2px;
  background:currentColor;
  transition:transform .2s ease,top .2s ease;
}

.nav-toggle__bars::before{top:-5px}
.nav-toggle__bars::after{top:5px}

.nav-toggle__text{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.12em;
}

.site-header[data-open] .nav-toggle__bars{background:transparent}
.site-header[data-open] .nav-toggle__bars::before{top:0;transform:rotate(45deg)}
.site-header[data-open] .nav-toggle__bars::after{top:0;transform:rotate(-45deg)}

.nav-bar{
  background:var(--pitch-void);
  border-bottom:2px solid var(--line-moss);
}

.site-nav{
  width:100%;
  max-width:var(--shell);
  margin-inline:auto;
  padding-inline:var(--gutter);
}

.site-nav__list{
  display:flex;
  flex-wrap:wrap;
  align-items:stretch;
  gap:2px;
}

.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  min-height:52px;
  padding:0 16px;
  font-size:15px;
  font-weight:700;
  letter-spacing:.02em;
  color:var(--fog);
  transition:color .18s ease,background-color .18s ease;
}

.nav-link::after{
  content:"";
  position:absolute;
  left:16px;
  right:16px;
  bottom:0;
  height:3px;
  background:var(--signal);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .18s ease;
}

.nav-link:hover,
.nav-link:focus-visible{
  color:var(--bone);
  background:rgba(77,255,184,.06);
}

.nav-link:hover::after,
.nav-link:focus-visible::after{
  transform:scaleX(1);
}

.nav-link[aria-current="page"]{
  color:var(--signal);
}

.nav-link[aria-current="page"]::after{
  transform:scaleX(1);
}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:clamp(48px,7vw,96px);
  background:var(--turf-deep);
  border-top:2px solid var(--line-moss);
  color:var(--fog);
}

.footer-top{
  padding-block:clamp(36px,5vw,64px);
  background:linear-gradient(180deg,var(--turf-deep),var(--pitch-void));
}

.footer-grid{
  width:100%;
  max-width:var(--shell);
  margin-inline:auto;
  padding-inline:var(--gutter);
  display:grid;
  grid-template-columns:1.4fr 1fr 1.3fr 1fr;
  gap:clamp(24px,3vw,40px);
}

.footer-brand{
  display:flex;
  flex-direction:column;
  align-items:flex-start;
  gap:12px;
}

.footer-brand__name{
  font-family:var(--font-display);
  font-size:24px;
  font-weight:800;
  letter-spacing:.03em;
  color:var(--bone);
}

.footer-brand__line{
  font-size:14px;
  line-height:1.85;
  color:var(--fog);
  max-width:34ch;
}

.footer-col{
  display:flex;
  flex-direction:column;
  gap:14px;
  min-width:0;
}

.footer-col__title{
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:600;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--signal);
}

.footer-list{
  display:flex;
  flex-direction:column;
  gap:10px;
  font-size:14px;
  line-height:1.7;
}

.footer-list a{
  color:var(--fog);
  border-bottom:1px solid transparent;
  padding-bottom:1px;
}

.footer-list a:hover{
  color:var(--signal);
  border-bottom-color:var(--signal);
}

.footer-list--contact{
  font-size:13px;
  color:var(--fog);
  gap:12px;
}

.copy-line{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding-block:4px;
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.02em;
  color:var(--bone);
  text-align:left;
  border-bottom:1px dashed var(--line-moss);
  transition:color .18s ease,border-color .18s ease;
}

.copy-line:hover,
.copy-line:focus-visible{
  color:var(--signal);
  border-bottom-color:var(--signal);
}

.copy-line[data-copied]{
  color:var(--amber);
  border-bottom-color:var(--amber);
}

.copy-line__value{word-break:break-all}

.copy-line__action{
  flex:none;
  font-size:11px;
  letter-spacing:.1em;
  padding:1px 6px;
  color:var(--signal);
  border:1px solid currentColor;
  transition:color .18s ease,border-color .18s ease;
}

.copy-line:hover .copy-line__action,
.copy-line:focus-visible .copy-line__action{
  color:var(--bone);
}

.copy-line[data-copied] .copy-line__action{
  color:var(--amber);
}

.footer-bottom{
  background:var(--pitch-void);
  border-top:1px solid var(--line-moss);
}

.footer-bottom__inner{
  width:100%;
  max-width:var(--shell);
  margin-inline:auto;
  padding:18px var(--gutter);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:8px 24px;
}

.footer-bottom__note{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.06em;
  color:var(--fog);
}

/* ---------- 通用布局与组件 ---------- */
.container{
  width:100%;
  max-width:var(--shell);
  margin-inline:auto;
  padding-inline:var(--gutter);
}

.section{
  padding-block:clamp(32px,5vw,72px);
  border-top:1px solid var(--line-moss);
}

.section-head{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  gap:10px 20px;
  margin-bottom:clamp(20px,3vw,32px);
}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:600;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--signal);
}

.eyebrow::before{
  content:"";
  width:18px;
  height:2px;
  background:var(--signal);
}

.page-title{
  font-size:clamp(2rem,5vw,3.6rem);
  margin:0;
}

.section-title{
  font-size:clamp(1.5rem,3.2vw,2.35rem);
  margin:0;
}

.lede{
  font-size:clamp(1rem,1.4vw,1.125rem);
  line-height:1.85;
  color:var(--fog);
  max-width:62ch;
}

.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 8px;
  background:var(--pitch-void);
  border:1px solid var(--line-moss);
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:600;
  letter-spacing:.1em;
  text-transform:uppercase;
  color:var(--fog);
}

.tag--signal{
  border-color:var(--signal);
  color:var(--signal);
}

.tag--amber{
  border-color:var(--amber);
  color:var(--amber);
}

.panel{
  background:var(--panel-ink);
  border:2px solid var(--line-moss);
  box-shadow:var(--shadow-hard);
  padding:clamp(18px,2.4vw,28px);
}

.grid{
  display:grid;
  gap:clamp(14px,2vw,22px);
}

.grid--bento{
  grid-template-columns:repeat(12,minmax(0,1fr));
}

.grid--bento > *{
  grid-column:span 12;
  min-width:0;
}

.grid--split{
  grid-template-columns:minmax(0,320px) minmax(0,1fr);
}

.media{
  position:relative;
  overflow:hidden;
  border:2px solid var(--line-moss);
  background:var(--panel-ink);
}

.media__frame{
  position:relative;
  aspect-ratio:16 / 10;
  overflow:hidden;
  background:linear-gradient(135deg,var(--panel-ink),var(--pitch-void));
}

.media__frame img{
  width:100%;
  height:100%;
  object-fit:cover;
  filter:grayscale(.35) contrast(1.08) brightness(.92);
  transition:filter .2s ease,transform .2s ease;
}

.media:hover .media__frame img{
  filter:grayscale(.1) contrast(1.05) brightness(1);
  transform:scale(1.01);
}

.media__caption{
  padding:10px 12px;
  border-top:1px solid var(--line-moss);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.04em;
  color:var(--fog);
}

.media--tall .media__frame{
  aspect-ratio:4 / 5;
}

.stat{
  display:flex;
  flex-direction:column;
  gap:4px;
  min-width:0;
}

.stat__num{
  font-family:var(--font-mono);
  font-size:clamp(1.6rem,4vw,2.6rem);
  font-weight:600;
  line-height:1;
  letter-spacing:-.01em;
  font-variant-numeric:tabular-nums;
  color:var(--signal);
}

.stat__label{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--fog);
}

.timeline{
  display:flex;
  flex-direction:column;
  margin:0;
  padding:0;
}

.timeline__item{
  position:relative;
  padding:14px 0 14px 26px;
  border-bottom:1px solid var(--line-moss);
}

.timeline__item::before{
  content:"";
  position:absolute;
  left:0;
  top:22px;
  width:10px;
  height:10px;
  background:var(--signal);
  box-shadow:0 0 0 3px rgba(77,255,184,.15);
}

.timeline__item--amber::before{
  background:var(--amber);
  box-shadow:0 0 0 3px rgba(255,179,71,.18);
}

.breadcrumb{
  background:var(--turf-deep);
  border-bottom:1px solid var(--line-moss);
}

.breadcrumb__list{
  width:100%;
  max-width:var(--shell);
  margin-inline:auto;
  padding:14px var(--gutter);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.04em;
  color:var(--fog);
}

.breadcrumb__list li + li::before{
  content:"/";
  margin-inline-end:8px;
  color:var(--line-moss);
}

.breadcrumb a{
  color:var(--fog);
}

.breadcrumb a:hover{
  color:var(--signal);
}

.breadcrumb [aria-current="page"]{
  color:var(--signal);
}

.prose{
  max-width:68ch;
  font-size:1.0625rem;
  line-height:1.9;
  color:var(--bone);
}

.prose p{
  margin-block:0 1.1em;
  color:var(--fog);
}

.prose h2{
  font-size:clamp(1.35rem,2.4vw,1.85rem);
  margin-block:1.6em .6em;
}

.prose h3{
  font-family:var(--font-body);
  font-weight:700;
  font-size:1.1rem;
  margin-block:1.4em .5em;
  color:var(--bone);
}

.prose ul,
.prose ol{
  margin-block:0 1.1em;
  padding:0;
  list-style:none;
}

.prose li{
  position:relative;
  padding-left:18px;
  margin-block:.4em;
  color:var(--fog);
}

.prose li::before{
  content:"";
  position:absolute;
  left:0;
  top:.85em;
  width:8px;
  height:2px;
  background:var(--signal);
}

.prose a{
  border-bottom:1px solid rgba(77,255,184,.45);
}

.prose a:hover{
  border-bottom-color:var(--amber);
}

/* ---------- JS 注入元素 ---------- */
.scroll-meter{
  position:fixed;
  inset-block-start:0;
  inset-inline:0;
  height:3px;
  background:rgba(30,74,58,.55);
  z-index:90;
  pointer-events:none;
}

.scroll-meter__bar{
  display:block;
  width:0;
  height:100%;
  background:linear-gradient(90deg,var(--signal),var(--amber));
  transition:width .12s linear;
}

.to-top{
  position:fixed;
  inset-block-end:18px;
  inset-inline-end:18px;
  z-index:80;
  display:inline-flex;
  align-items:center;
  gap:8px;
  min-height:44px;
  padding:8px 14px;
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:600;
  letter-spacing:.1em;
  color:var(--pitch-void);
  background:var(--signal);
  border:2px solid var(--pitch-void);
  box-shadow:4px 4px 0 rgba(0,0,0,.6);
  transition:transform .16s ease,background-color .16s ease;
}

.to-top:hover{
  background:var(--amber);
  transform:translateY(-2px);
}

.to-top:active{
  transform:translateY(1px);
}

.to-top[hidden]{
  display:none;
}

.to-top__arrow{
  font-size:14px;
  line-height:1;
}

.to-top__text{
  font-size:12px;
}

.copy-helper{
  position:fixed;
  inset-block-start:0;
  inset-inline-start:0;
  width:1px;
  height:1px;
  padding:0;
  border:0;
  opacity:0;
  pointer-events:none;
}

/* ---------- 响应式 ---------- */
@media (min-width:900px){
  .grid--bento > *{grid-column:span 6}
  .grid--bento > .is-wide{grid-column:span 8}
  .grid--bento > .is-narrow{grid-column:span 4}
  .grid--bento > .is-full{grid-column:span 12}
}

@media (max-width:1023px){
  .footer-grid{grid-template-columns:1fr 1fr}
}

@media (max-width:899px){
  .nav-toggle{display:inline-flex}
  .nav-bar{display:none}
  .site-header[data-open] .nav-bar{display:block}
  .site-nav{padding-inline:var(--gutter);max-height:70vh;overflow-y:auto}
  .site-nav__list{flex-direction:column;padding-block:8px;gap:0}
  .nav-link{
    width:100%;
    min-height:48px;
    border-bottom:1px solid var(--line-moss);
  }
  .nav-link::after{display:none}
  .nav-link[aria-current="page"]{
    background:rgba(77,255,184,.12);
    border-left:3px solid var(--signal);
    padding-left:13px;
  }
  .grid--split{grid-template-columns:1fr}
  .masthead__inner{padding-block:10px}
}

@media (max-width:619px){
  .brand__tagline{display:none}
  .brand__mark{width:36px;height:36px;font-size:18px}
  .matchday-signal__label{display:none}
  .matchday-signal{font-size:11px;padding:5px 8px}
  .masthead__meta{gap:8px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom__inner{flex-direction:column;align-items:flex-start;gap:6px}
  .btn--sm{font-size:10px;padding:6px 10px}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,
  *::before,
  *::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .scroll-meter__bar{transition:none}
  .media:hover .media__frame img{transform:none}
}