:root{
  --night:#071A15;
  --stand:#101614;
  --panel:#1B2E27;
  --line:#123B31;
  --lime:#C8FF3D;
  --orange:#FF8A3D;
  --chalk:#F3F6EA;
  --muted:#8FA89B;
  --coral:#FF5F56;
  --cyan:#4DD8C0;
  --ink:#06150F;
  --font-sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono","SFMono-Regular",Consolas,"Liberation Mono",monospace;
  --font-serif:"Noto Serif SC","Songti SC","STSong",serif;
  --ease:cubic-bezier(.22,.61,.36,1);
  --cut:22px;
  --shell:1240px;
  --gutter:clamp(18px,4vw,32px);
  --pill:999px;
}

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

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

body{
  margin:0;
  min-height:100vh;
  background-color:var(--night);
  background-image:
    radial-gradient(1100px 620px at 84% -12%,rgba(200,255,61,.10),transparent 62%),
    radial-gradient(820px 520px at -8% 34%,rgba(77,216,192,.08),transparent 60%),
    repeating-linear-gradient(0deg,rgba(143,168,155,.028) 0 1px,transparent 1px 3px);
  color:var(--chalk);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.62;
  letter-spacing:.005em;
}

img{display:block;max-width:100%;height:auto}
h1,h2,h3,h4,h5{margin:0;font-weight:900;line-height:1.1;letter-spacing:-.03em}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0}
a{color:var(--cyan);text-decoration:none}
a:hover{color:var(--lime)}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--lime);outline-offset:3px;border-radius:4px}
::selection{background:var(--lime);color:var(--ink)}

.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;
}

.skip-link{
  position:fixed;
  top:10px;left:50%;
  z-index:300;
  transform:translate(-50%,-180%);
  padding:10px 20px;
  border-radius:var(--pill);
  background:var(--lime);
  color:var(--ink);
  font-weight:800;
  font-size:14px;
  transition:transform .22s var(--ease);
}
.skip-link:focus,
.skip-link:focus-visible{transform:translate(-50%,0);color:var(--ink)}

/* ================= 头部：悬浮胶囊浮岛 ================= */
.site-header{
  position:sticky;
  top:0;
  z-index:120;
  padding:14px var(--gutter) 0;
  pointer-events:none;
}

.header-shell{
  position:relative;
  max-width:var(--shell);
  margin:0 auto;
  pointer-events:none;
}

.header-pill{
  position:relative;
  display:flex;
  align-items:center;
  gap:clamp(8px,1.6vw,22px);
  padding:10px 12px 10px 18px;
  pointer-events:auto;
  background:linear-gradient(180deg,rgba(27,46,39,.94),rgba(16,22,20,.95));
  border:1px solid rgba(200,255,61,.16);
  border-radius:var(--pill);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  box-shadow:0 22px 46px -30px #000,inset 0 1px 0 rgba(243,246,234,.07);
  transition:padding .3s var(--ease),background .3s var(--ease),border-color .3s var(--ease);
}
.site-header[data-scrolled] .header-pill{
  padding:6px 10px 6px 14px;
  background:linear-gradient(180deg,rgba(16,22,20,.98),rgba(7,26,21,.98));
  border-color:rgba(200,255,61,.28);
}

.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  color:var(--chalk);
}
.brand:hover{color:var(--chalk)}
.brand-mark{
  position:relative;
  width:30px;height:30px;
  flex:0 0 auto;
  background:var(--lime);
  clip-path:polygon(0 0,100% 0,100% 62%,62% 100%,0 100%);
  transition:transform .25s var(--ease);
}
.brand:hover .brand-mark{transform:rotate(-4deg)}
.brand-mark::before{
  content:"";
  position:absolute;
  left:6px;top:8px;
  width:14px;height:3px;
  background:var(--night);
  box-shadow:0 6px 0 var(--night),0 12px 0 rgba(7,26,21,.55);
}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-name{font-size:17px;font-weight:900;letter-spacing:-.02em}
.brand-sub{
  font-family:var(--font-mono);
  font-size:9px;
  letter-spacing:.22em;
  color:var(--muted);
  margin-top:3px;
}

.primary-nav{margin-inline:auto}
.nav-list{
  display:flex;
  align-items:center;
  gap:2px;
  list-style:none;
}
.nav-link{
  display:inline-block;
  padding:8px 12px;
  border-radius:var(--pill);
  font-size:14px;
  font-weight:600;
  color:var(--muted);
  white-space:nowrap;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-link:hover{color:var(--chalk);background:rgba(200,255,61,.09)}
.nav-link[aria-current="page"]{
  color:var(--ink);
  background:var(--lime);
  font-weight:800;
}
.nav-link[aria-current="page"]:hover{background:#D7FF6B;color:var(--ink)}

.header-actions{
  display:flex;
  align-items:center;
  gap:10px;
  margin-left:auto;
  flex:0 0 auto;
}

/* 联赛统一切换 */
.league-switch{position:relative}
.league-switch__trigger{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:8px 12px;
  border:1px solid rgba(200,255,61,.28);
  border-radius:var(--pill);
  background:rgba(200,255,61,.07);
  color:var(--chalk);
  font-size:13px;
  font-weight:700;
  cursor:pointer;
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.league-switch__trigger:hover{border-color:var(--lime);background:rgba(200,255,61,.13)}
.league-switch__label{
  font-size:10.5px;
  letter-spacing:.16em;
  color:var(--muted);
  font-weight:600;
}
.league-switch__value{
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.04em;
  color:var(--lime);
}
.league-switch__caret{
  width:0;height:0;
  border-left:4px solid transparent;
  border-right:4px solid transparent;
  border-top:5px solid var(--lime);
  transition:transform .22s var(--ease);
}
.league-switch__trigger[aria-expanded="true"] .league-switch__caret{transform:rotate(180deg)}

.league-menu{
  position:absolute;
  top:calc(100% + 10px);
  right:0;
  z-index:140;
  min-width:186px;
  padding:6px;
  list-style:none;
  background:rgba(16,22,20,.985);
  border:1px solid rgba(200,255,61,.22);
  border-radius:16px;
  box-shadow:0 28px 54px -26px #000;
}
.league-menu[hidden]{display:none}
.league-menu button{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  width:100%;
  padding:9px 12px;
  border:0;
  border-radius:10px;
  background:transparent;
  color:var(--chalk);
  font-size:13.5px;
  text-align:left;
  cursor:pointer;
  transition:background .18s var(--ease),color .18s var(--ease);
}
.league-menu button::after{
  content:"";
  width:6px;height:6px;
  border-radius:50%;
  background:rgba(143,168,155,.4);
}
.league-menu button:hover{background:rgba(200,255,61,.12)}
.league-menu button[aria-pressed="true"]{background:rgba(200,255,61,.16);color:var(--lime);font-weight:700}
.league-menu button[aria-pressed="true"]::after{background:var(--lime)}

/* 按钮 */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:10px 20px;
  border:1px solid transparent;
  border-radius:var(--pill);
  font-family:inherit;
  font-size:14px;
  font-weight:800;
  letter-spacing:.02em;
  cursor:pointer;
  text-decoration:none;
  transition:transform .18s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn--primary{
  background:var(--lime);
  color:var(--ink);
  box-shadow:0 14px 30px -16px rgba(200,255,61,.85);
}
.btn--primary:hover{background:#D7FF6B;color:var(--ink);transform:translateY(-1px)}
.btn--ghost{
  background:transparent;
  color:var(--chalk);
  border-color:rgba(143,168,155,.42);
}
.btn--ghost:hover{border-color:var(--lime);color:var(--lime)}
.header-cta{white-space:nowrap}

/* 移动菜单按钮 */
.nav-toggle{
  display:none;
  position:relative;
  width:42px;height:42px;
  flex:0 0 auto;
  padding:0;
  border:1px solid rgba(200,255,61,.3);
  border-radius:var(--pill);
  background:rgba(200,255,61,.08);
  cursor:pointer;
  transition:background .2s var(--ease),border-color .2s var(--ease);
}
.nav-toggle:hover{background:rgba(200,255,61,.16);border-color:var(--lime)}
.nav-toggle__bar{
  position:absolute;
  left:12px;
  width:18px;height:2px;
  border-radius:2px;
  background:var(--chalk);
  transition:transform .25s var(--ease),opacity .2s var(--ease);
}
.nav-toggle__bar:nth-child(1){top:15px}
.nav-toggle__bar:nth-child(2){top:20px}
.nav-toggle__bar:nth-child(3){top:25px}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1){transform:translateY(5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3){transform:translateY(-5px) rotate(-45deg)}

/* 阅读进度 */
.scroll-progress{
  max-width:var(--shell);
  height:2px;
  margin:8px auto 0;
  border-radius:2px;
  background:rgba(143,168,155,.16);
  overflow:hidden;
}
.scroll-progress span{
  display:block;
  width:100%;height:100%;
  transform:scaleX(0);
  transform-origin:0 50%;
  background:linear-gradient(90deg,var(--cyan),var(--lime));
  transition:transform .12s linear;
}

/* ================= 页脚：炭黑看台 ================= */
.site-footer{
  position:relative;
  margin-top:clamp(60px,9vw,120px);
  background:var(--stand);
  border-top:1px solid rgba(200,255,61,.22);
  color:var(--muted);
  overflow:hidden;
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;right:0;
  width:min(54%,540px);
  height:100%;
  pointer-events:none;
  background:linear-gradient(180deg,rgba(200,255,61,.10),transparent 72%);
  clip-path:polygon(22% 0,100% 0,100% 100%,0 100%);
}
.footer-shell{
  position:relative;
  max-width:var(--shell);
  margin:0 auto;
  padding:clamp(40px,6vw,72px) var(--gutter) 28px;
}
.footer-top{
  display:grid;
  grid-template-columns:minmax(230px,1.05fr) minmax(0,1.9fr);
  gap:clamp(26px,5vw,64px);
}
.footer-brand{display:flex;flex-direction:column;gap:14px}
.footer-brand .brand{align-items:center}
.footer-tagline{
  max-width:26ch;
  color:var(--chalk);
  font-size:15px;
  line-height:1.6;
}
.footer-note{
  max-width:30ch;
  font-family:var(--font-mono);
  font-size:11.5px;
  line-height:1.7;
  letter-spacing:.02em;
  color:rgba(143,168,155,.85);
}
.footer-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:clamp(18px,3vw,36px);
}
.footer-col__title{
  margin:0 0 14px;
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:700;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--lime);
}
.footer-list{list-style:none;display:grid;gap:10px}
.footer-list a{
  font-size:14.5px;
  color:var(--muted);
  transition:color .2s var(--ease);
}
.footer-list a:hover{color:var(--lime)}
.footer-contact{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:18px;
  margin-top:clamp(28px,4vw,48px);
  padding:22px clamp(18px,3vw,26px);
  background:rgba(27,46,39,.72);
  border:1px solid var(--line);
  clip-path:polygon(0 0,calc(100% - 20px) 0,100% 20px,100% 100%,20px 100%,0 calc(100% - 20px));
}
.footer-contact__item{min-width:0}
.footer-contact__label{
  display:block;
  margin-bottom:6px;
  font-family:var(--font-mono);
  font-size:10.5px;
  letter-spacing:.2em;
  color:var(--muted);
}
.footer-contact__value{
  display:block;
  color:var(--chalk);
  font-size:14px;
  line-height:1.5;
  overflow-wrap:anywhere;
}
.footer-legal{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px 24px;
  margin-top:clamp(22px,3vw,34px);
  padding-top:20px;
  border-top:1px solid rgba(143,168,155,.18);
  font-size:13px;
}
.footer-copy{
  margin:0;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:4px 10px;
  color:var(--muted);
}
.footer-beian{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.02em;
  color:rgba(143,168,155,.85);
}
.footer-legal-links{
  display:flex;
  flex-wrap:wrap;
  gap:8px 18px;
  list-style:none;
}
.footer-legal-links a{
  color:var(--muted);
  font-size:13px;
  transition:color .2s var(--ease);
}
.footer-legal-links a:hover{color:var(--lime)}

/* ================= 通用布局与基础组件 ================= */
.container{
  max-width:var(--shell);
  margin:0 auto;
  padding-inline:var(--gutter);
}

.section{
  position:relative;
  padding:clamp(46px,7vw,96px) 0;
}
.section--band{
  background:linear-gradient(180deg,rgba(18,59,49,.62),rgba(18,59,49,.10) 72%,transparent);
  border-top:1px solid rgba(200,255,61,.16);
  border-bottom:1px solid rgba(143,168,155,.1);
}
.section--band::before{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background:repeating-linear-gradient(115deg,rgba(200,255,61,.055) 0 2px,transparent 2px 46px);
}
.section--band > *{position:relative;z-index:1}
.section-head{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  gap:12px 20px;
  margin-bottom:clamp(20px,3vw,36px);
}
.section-index{
  writing-mode:vertical-rl;
  text-orientation:mixed;
  align-self:flex-start;
  padding-top:2px;
  font-family:var(--font-mono);
  font-size:10.5px;
  line-height:1;
  letter-spacing:.34em;
  color:var(--lime);
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.24em;
  text-transform:uppercase;
  color:var(--muted);
}
.eyebrow::before{
  content:"";
  width:26px;height:1px;
  background:var(--lime);
}

.grid{display:grid;gap:clamp(16px,2.4vw,26px)}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid--split{grid-template-columns:minmax(0,1.4fr) minmax(0,1fr)}

.panel{
  position:relative;
  padding:clamp(18px,2.6vw,28px);
  background:linear-gradient(180deg,rgba(27,46,39,.96),rgba(16,22,20,.96));
  border:1px solid rgba(143,168,155,.18);
  clip-path:polygon(0 0,calc(100% - 22px) 0,100% 22px,100% 100%,22px 100%,0 calc(100% - 22px));
}

.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 10px;
  border-radius:var(--pill);
  font-size:11.5px;
  font-weight:700;
  letter-spacing:.06em;
  color:var(--lime);
  background:rgba(200,255,61,.12);
  border:1px solid rgba(200,255,61,.28);
}
.tag--warm{
  color:var(--orange);
  background:rgba(255,138,61,.14);
  border-color:rgba(255,138,61,.36);
}
.tag--muted{
  color:var(--muted);
  background:rgba(143,168,155,.14);
  border-color:rgba(143,168,155,.3);
}

.prose{
  max-width:72ch;
  color:#D7E2D9;
  font-size:16.5px;
  line-height:1.72;
}
.prose h2,.prose h3{margin:1.6em 0 .6em;color:var(--chalk)}
.prose h2{font-size:clamp(24px,3vw,32px)}
.prose h3{font-size:clamp(19px,2.2vw,22px)}
.prose ul,.prose ol{margin:0 0 1.1em;padding-left:1.2em}
.prose li{margin-bottom:.45em}
.prose blockquote{
  margin:1.4em 0;
  padding:14px 0 14px 20px;
  border-left:2px solid var(--orange);
  font-family:var(--font-serif);
  font-style:italic;
  color:var(--chalk);
}
.prose strong{color:var(--lime);font-weight:800}

.breadcrumb{margin:clamp(18px,3vw,30px) 0 0;font-size:13px}
.breadcrumb__list{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  list-style:none;
  color:var(--muted);
}
.breadcrumb__list li{display:flex;align-items:center;gap:8px}
.breadcrumb__list li + li::before{
  content:"/";
  color:rgba(143,168,155,.5);
}
.breadcrumb__list a{color:var(--muted)}
.breadcrumb__list a:hover{color:var(--lime)}
.breadcrumb__list [aria-current="page"]{color:var(--chalk)}

/* 图片容器基础规则 */
.media-frame{
  position:relative;
  overflow:hidden;
  aspect-ratio:16 / 9;
  background-color:var(--panel);
  background-image:
    linear-gradient(135deg,rgba(200,255,61,.12),rgba(7,26,21,0) 58%),
    repeating-linear-gradient(90deg,rgba(143,168,155,.10) 0 1px,transparent 1px 34px),
    repeating-linear-gradient(0deg,rgba(143,168,155,.08) 0 1px,transparent 1px 34px);
  border:1px solid rgba(143,168,155,.2);
  clip-path:polygon(0 0,calc(100% - 24px) 0,100% 24px,100% 100%,24px 100%,0 calc(100% - 24px));
}
.media-frame img{
  width:100%;height:100%;
  object-fit:cover;
}
.media-frame::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background:radial-gradient(120% 92% at 50% 0%,transparent 42%,rgba(0,0,0,.46));
}
.media-frame--wide{aspect-ratio:21 / 9}
.media-frame--tall{aspect-ratio:4 / 5}
.media-frame--square{aspect-ratio:1 / 1}

/* 动效协议 */
.js-reveal [data-reveal]{
  opacity:0;
  transform:translateY(18px);
  transition:opacity .6s var(--ease),transform .6s var(--ease);
}
.js-reveal [data-reveal].is-visible{
  opacity:1;
  transform:none;
}
[data-count-to]{
  font-variant-numeric:tabular-nums;
  font-feature-settings:"tnum" 1;
}

/* ================= 响应式 ================= */
@media (max-width:1100px){
  .nav-link{padding:8px 9px;font-size:13px}
  .header-pill{gap:10px}
}

@media (max-width:980px){
  .site-header{padding-top:10px}
  .nav-toggle{display:block}
  .primary-nav{
    position:absolute;
    top:calc(100% + 12px);
    left:0;
    right:0;
    z-index:130;
    padding:10px;
    background:rgba(16,22,20,.985);
    border:1px solid rgba(200,255,61,.2);
    border-radius:22px;
    box-shadow:0 30px 60px -32px #000;
    opacity:0;
    visibility:hidden;
    transform:translateY(-8px);
    pointer-events:none;
    max-height:calc(100vh - 140px);
    overflow:auto;
    -webkit-overflow-scrolling:touch;
    transition:opacity .24s var(--ease),transform .24s var(--ease),visibility .24s;
  }
  .primary-nav[data-open],
  .site-header[data-open] .primary-nav{
    opacity:1;
    visibility:visible;
    transform:translateY(0);
    pointer-events:auto;
  }
  .nav-list{flex-direction:column;align-items:stretch;gap:2px}
  .nav-link{
    display:block;
    padding:13px 15px;
    border-radius:14px;
    font-size:15px;
    color:var(--chalk);
  }
  .nav-link[aria-current="page"]{border-radius:14px}
  .header-actions{gap:8px}
  .footer-top{grid-template-columns:1fr}
  .footer-contact{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid--2,.grid--3,.grid--split{grid-template-columns:1fr}
}

@media (max-width:640px){
  .brand-mark{width:26px;height:26px}
  .brand-name{font-size:15px}
  .brand-sub{display:none}
  .league-switch__label{display:none}
  .league-switch__trigger{padding:7px 10px}
  .header-cta{font-size:13px;padding:9px 14px}
  .header-pill{padding:8px 10px;gap:8px}
  .site-header[data-scrolled] .header-pill{padding:6px 10px}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-legal{flex-direction:column;align-items:flex-start}
  .footer-contact{grid-template-columns:1fr}
}

@media (max-width:400px){
  .brand-name{font-size:14px}
  .nav-toggle{width:38px;height:38px}
  .nav-toggle__bar{left:10px;width:18px}
  .nav-toggle__bar:nth-child(1){top:13px}
  .nav-toggle__bar:nth-child(2){top:18px}
  .nav-toggle__bar:nth-child(3){top:23px}
  .footer-grid{grid-template-columns:1fr}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,
  *::before,
  *::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .js-reveal [data-reveal]{opacity:1;transform:none}
  .scroll-progress span{transition:none}
}