/* 三亿赛场 · 共享样式表 /assets/site.css */

:root{
  --ink:#071C16;
  --ink-deep:#04120E;
  --panel:#0C2A22;
  --line:#1E4A3D;
  --line-soft:rgba(30,74,61,.55);
  --cyan:#35F2C8;
  --cyan-soft:#A9F6E2;
  --chalk:#E9F3EE;
  --orange:#FF6A2B;
  --paper:#F3F5F0;
  --moss:#8FA9A0;
  --lime:#C8FF4D;

  --font-num:'Oswald','Barlow Condensed','DIN Alternate','Arial Narrow',system-ui,sans-serif;
  --font-cn:'Noto Sans SC','Source Han Sans SC','PingFang SC','Microsoft YaHei',system-ui,sans-serif;
  --font-mono:'JetBrains Mono','IBM Plex Mono',ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;

  --shell:1440px;
  --gutter:clamp(20px,4vw,72px);
  --axis-w:88px;
  --ease:cubic-bezier(.2,.8,.2,1);
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-padding-top:190px;}
body{
  margin:0;
  background-color:var(--ink);
  background-image:
    linear-gradient(to right, rgba(30,74,61,.16) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(30,74,61,.16) 1px, transparent 1px);
  background-size:96px 96px;
  color:var(--chalk);
  font-family:var(--font-cn);
  font-size:17px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4{font-weight:700;line-height:1.22;letter-spacing:.01em;color:var(--chalk);margin:0;}
p,figure,dl,dd,blockquote{margin:0;}
ul,ol{list-style:none;margin:0;padding:0;}
img,svg,video{display:block;max-width:100%;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer;}
table{border-collapse:collapse;width:100%;}
::selection{background:var(--cyan);color:var(--ink-deep);}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;}

/* ---------- 基础容器 ---------- */
.shell{
  width:100%;
  max-width:var(--shell);
  margin-inline:auto;
  padding-inline:var(--gutter);
}
.page-shell{
  padding-block:clamp(28px,4.4vw,56px) clamp(56px,8vw,120px);
}
.split{
  display:grid;
  grid-template-columns:minmax(0,7fr) minmax(0,4fr);
  gap:clamp(24px,4vw,60px);
  align-items:start;
}
.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;
}

/* ---------- 跳过导航 ---------- */
.skip-link{
  position:absolute;
  top:-120px;
  left:16px;
  z-index:200;
  display:inline-block;
  padding:11px 20px;
  background:var(--cyan);
  color:var(--ink-deep);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.12em;
  transition:top .18s var(--ease);
}
.skip-link:focus{top:14px;}

/* ---------- 页头 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:var(--ink);
  border-bottom:1px solid var(--line);
}

.utility-bar{
  background:var(--ink-deep);
  border-bottom:1px solid var(--line);
}
.utility-bar__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:32px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.12em;
  color:var(--moss);
}
.utility-bar__note{margin:0;white-space:nowrap;}
.utility-bar__service{
  margin:0;
  display:flex;
  align-items:center;
  gap:8px;
  white-space:nowrap;
}
.utility-bar__sep{color:var(--line);}
.utility-bar__phone{
  color:var(--cyan-soft);
  font-variant-numeric:tabular-nums;
}

.masthead{
  background:var(--ink);
  border-bottom:1px solid var(--line);
  text-align:center;
  padding-block:clamp(16px,2.6vw,32px) clamp(12px,1.8vw,22px);
  transition:padding-block .24s var(--ease);
}
.masthead__kicker{
  margin:0 0 10px;
  font-family:var(--font-mono);
  font-size:10px;
  font-weight:400;
  letter-spacing:.34em;
  color:var(--cyan);
  transition:opacity .16s ease;
}
.masthead__brand{
  margin:0;
  font-size:clamp(30px,5.2vw,60px);
  font-weight:800;
  line-height:1;
  letter-spacing:.18em;
  text-indent:.18em;
  color:var(--chalk);
  transition:font-size .24s var(--ease);
}
.masthead__brand a{display:inline-block;transition:color .14s ease;}
.masthead__brand a:hover{color:var(--cyan);}
.masthead__sub{
  margin:10px 0 0;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.3em;
  text-indent:.3em;
  color:var(--moss);
  transition:opacity .16s ease;
}
.site-header.is-condensed .masthead{padding-block:10px 9px;}
.site-header.is-condensed .masthead__brand{font-size:clamp(19px,2.4vw,26px);}
.site-header.is-condensed .masthead__kicker,
.site-header.is-condensed .masthead__sub{display:none;}

.nav-bar{
  position:relative;
  background:var(--ink);
  border-bottom:1px solid var(--line);
}
.nav-bar__inner{
  display:flex;
  align-items:center;
  justify-content:center;
  min-height:56px;
}
.nav-list{
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:clamp(12px,2.8vw,42px);
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:baseline;
  gap:7px;
  padding-block:18px;
  font-size:15px;
  font-weight:500;
  color:var(--chalk);
  transition:color .14s ease;
}
.nav-link::after{
  content:"";
  position:absolute;
  inset-inline:0;
  bottom:0;
  height:2px;
  background:var(--cyan);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .18s var(--ease);
}
.nav-link:hover{color:var(--cyan-soft);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link[aria-current="page"]{color:var(--cyan);}
.nav-link[aria-current="page"]::after{transform:scaleX(1);}
.nav-link__num{
  font-family:var(--font-mono);
  font-size:10px;
  font-weight:400;
  letter-spacing:.08em;
  color:var(--moss);
  transition:color .14s ease;
}
.nav-link:hover .nav-link__num,
.nav-link[aria-current="page"] .nav-link__num{color:var(--cyan);}

.nav-toggle{
  display:none;
  align-items:center;
  gap:10px;
  margin-inline:auto;
  padding:10px 16px;
  border:1px solid var(--line);
  background:var(--panel);
  color:var(--chalk);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.14em;
  transition:border-color .14s ease,color .14s ease;
}
.nav-toggle:hover{border-color:var(--cyan);color:var(--cyan);}
.nav-toggle__bars{
  display:inline-flex;
  flex-direction:column;
  justify-content:center;
  gap:4px;
  width:16px;
  height:12px;
}
.nav-toggle__bars span{
  display:block;
  height:1px;
  width:100%;
  background:var(--cyan);
  transition:transform .18s var(--ease),opacity .14s ease;
}
.nav-bar[data-open] .nav-toggle{border-color:var(--cyan);color:var(--cyan);}
.nav-bar[data-open] .nav-toggle__bars span:nth-child(1){transform:translateY(5px) rotate(45deg);}
.nav-bar[data-open] .nav-toggle__bars span:nth-child(2){opacity:0;}
.nav-bar[data-open] .nav-toggle__bars span:nth-child(3){transform:translateY(-5px) rotate(-45deg);}

/* ---------- 联赛竖轴（移动端：横向索引条） ---------- */
.league-axis{
  background:var(--panel);
  border-bottom:1px solid var(--line);
}
.league-axis__label{display:none;}
.league-axis__list{
  display:flex;
  gap:0;
  overflow-x:auto;
  scrollbar-width:none;
  -webkit-overflow-scrolling:touch;
  padding-inline:var(--gutter);
}
.league-axis__list::-webkit-scrollbar{display:none;}
.league-axis__item{
  position:relative;
  display:flex;
  align-items:center;
  gap:8px;
  flex:0 0 auto;
  padding:11px 18px;
  border-inline-end:1px solid var(--line-soft);
  color:var(--chalk);
  font-size:13px;
  font-weight:500;
  transition:color .14s ease,background .14s ease;
}
.league-axis__item:hover{color:var(--cyan);background:rgba(53,242,200,.06);}
.league-axis__name{white-space:nowrap;}
.league-axis__meta{display:inline-flex;align-items:center;gap:5px;}
.league-axis__count{
  font-family:var(--font-num);
  font-size:13px;
  color:var(--cyan);
  font-variant-numeric:tabular-nums;
}
.league-axis__peek{display:none;}

@media (min-width:1060px){
  body{padding-inline-start:var(--axis-w);}

  .league-axis{
    position:fixed;
    inset-block:0;
    inset-inline-start:0;
    width:var(--axis-w);
    display:flex;
    flex-direction:column;
    align-items:center;
    padding-block:14px 20px;
    background:var(--ink-deep);
    border-bottom:0;
    border-inline-end:1px solid var(--line);
    z-index:55;
  }
  .league-axis__label{
    display:block;
    margin:0 0 12px;
    padding-block-end:12px;
    writing-mode:vertical-rl;
    font-family:var(--font-mono);
    font-size:10px;
    letter-spacing:.3em;
    color:var(--moss);
    border-bottom:1px solid var(--line);
  }
  .league-axis__list{
    flex-direction:column;
    width:100%;
    overflow:visible;
    padding-inline:0;
  }
  .league-axis__item{
    flex-direction:column;
    gap:5px;
    width:100%;
    padding:13px 4px;
    border-inline-end:0;
    border-top:1px solid var(--line-soft);
    font-size:13px;
    text-align:center;
  }
  .league-axis__item:first-child{border-top:0;}
  .league-axis__peek{
    display:block;
    position:absolute;
    top:50%;
    left:calc(100% + 10px);
    z-index:6;
    min-width:176px;
    padding:10px 14px;
    background:var(--panel);
    border:1px solid var(--line);
    font-family:var(--font-mono);
    font-size:11px;
    letter-spacing:.06em;
    line-height:1.7;
    color:var(--cyan-soft);
    text-align:left;
    white-space:nowrap;
    opacity:0;
    visibility:hidden;
    pointer-events:none;
    transform:translate(-6px,-50%);
    transition:opacity .14s ease,transform .14s var(--ease);
  }
  .league-axis__item:hover .league-axis__peek,
  .league-axis__item:focus-visible .league-axis__peek{
    opacity:1;
    visibility:visible;
    transform:translate(0,-50%);
  }
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink-deep);
  border-top:1px solid var(--line);
  color:var(--moss);
  font-size:14px;
  padding-block:clamp(44px,6vw,80px) 22px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.25fr;
  gap:clamp(24px,3.5vw,52px);
}
.footer-brand__mark{
  display:inline-block;
  margin-bottom:14px;
  font-size:clamp(20px,2.4vw,26px);
  font-weight:800;
  letter-spacing:.16em;
  color:var(--chalk);
}
.footer-brand__desc{
  margin:0 0 16px;
  max-width:24em;
  font-size:13px;
  line-height:1.85;
  color:var(--moss);
}
.footer-brand__icp{
  margin:0;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.08em;
  color:var(--moss);
  opacity:.88;
}
.footer-col__title{
  margin:0 0 16px;
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:500;
  letter-spacing:.2em;
  color:var(--cyan);
}
.footer-list{
  display:flex;
  flex-direction:column;
  gap:10px;
  font-size:14px;
}
.footer-list a{color:var(--chalk);transition:color .14s ease;}
.footer-list a:hover{color:var(--cyan);}
.footer-note{
  margin:16px 0 0;
  padding-top:14px;
  border-top:1px solid var(--line-soft);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.06em;
  line-height:1.8;
  color:var(--moss);
}
.footer-meta{
  display:flex;
  flex-direction:column;
  gap:12px;
  font-size:13px;
  line-height:1.75;
}
.footer-meta li{display:flex;align-items:flex-start;gap:10px;}
.footer-meta__k{
  flex:0 0 auto;
  min-width:34px;
  padding-top:3px;
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.12em;
  color:var(--moss);
}
.footer-meta__v{color:var(--chalk);word-break:break-word;}
.footer-base{
  margin-top:clamp(30px,4.5vw,56px);
  padding-top:20px;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.1em;
  color:var(--moss);
}
.footer-legal{display:flex;gap:22px;}
.footer-legal a{color:var(--moss);transition:color .14s ease;}
.footer-legal a:hover{color:var(--cyan);}
.footer-copy{margin:0;}

/* ---------- 通用组件 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:13px 26px;
  border:1px solid transparent;
  border-radius:0;
  font-family:var(--font-cn);
  font-size:15px;
  font-weight:600;
  letter-spacing:.04em;
  line-height:1.2;
  cursor:pointer;
  transition:background .14s ease,color .14s ease,border-color .14s ease;
}
.btn--primary{background:var(--orange);color:var(--ink-deep);}
.btn--primary:hover{background:#FF8A54;}
.btn--cyan{background:var(--cyan);color:var(--ink-deep);}
.btn--cyan:hover{background:#6FF6DA;}
.btn--ghost{border-color:var(--line);color:var(--chalk);background:transparent;}
.btn--ghost:hover{border-color:var(--cyan);color:var(--cyan);}

.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 9px;
  border:1px solid var(--line);
  background:var(--panel);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.12em;
  color:var(--cyan-soft);
}

.dot{
  display:inline-block;
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--moss);
  flex:0 0 auto;
}
.dot--live{background:var(--orange);box-shadow:0 0 0 3px rgba(255,106,43,.16);}
.dot--ok{background:var(--lime);box-shadow:0 0 0 3px rgba(200,255,77,.14);}
.dot--done{background:var(--moss);}

.crumbs{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  padding-block:18px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.1em;
  color:var(--moss);
}
.crumbs a{color:var(--moss);transition:color .14s ease;}
.crumbs a:hover{color:var(--cyan);}
.crumbs [aria-current="page"]{color:var(--chalk);}

.section-head{
  display:flex;
  align-items:flex-start;
  gap:clamp(14px,2vw,24px);
  margin-bottom:clamp(20px,3vw,36px);
}
.section-no{
  font-family:var(--font-num);
  font-size:clamp(40px,6vw,84px);
  font-weight:300;
  line-height:.86;
  letter-spacing:-.02em;
  color:transparent;
  -webkit-text-stroke:1px var(--line);
  font-variant-numeric:tabular-nums;
}
.section-title{
  font-size:clamp(20px,2.2vw,30px);
  line-height:1.3;
  font-weight:700;
}
.eyebrow{
  display:block;
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:400;
  letter-spacing:.22em;
  color:var(--cyan);
  text-transform:uppercase;
}
.vertical-note{
  writing-mode:vertical-rl;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.24em;
  color:var(--moss);
}

.card{
  background:var(--panel);
  border:1px solid var(--line);
  padding:clamp(16px,2vw,24px);
  transition:border-color .14s ease;
}
.card:hover{border-color:var(--cyan);}

.bar{
  position:relative;
  height:4px;
  background:rgba(30,74,61,.6);
  overflow:hidden;
}
.bar__fill{
  display:block;
  height:100%;
  width:var(--v,0%);
  background:var(--cyan);
  transition:width .48s var(--ease);
}

/* ---------- 图片容器基础规则 ---------- */
.figure{
  position:relative;
  display:block;
  margin:0;
  overflow:hidden;
  background:var(--panel);
  border:1px solid var(--line);
}
.figure::after{
  content:"";
  position:absolute;
  inset:0;
  z-index:1;
  background:linear-gradient(180deg,rgba(7,28,22,.35) 0%,rgba(7,28,22,.75) 100%);
  pointer-events:none;
}
.figure--wide{aspect-ratio:16 / 9;}
.figure--tall{aspect-ratio:3 / 4;}
.figure--band{aspect-ratio:21 / 9;}
.figure img,
.figure .figure__ph{
  display:block;
  width:100%;
  height:100%;
  object-fit:cover;
}
.figure__ph{
  background:
    repeating-linear-gradient(90deg,rgba(53,242,200,.07) 0 1px,transparent 1px 48px),
    repeating-linear-gradient(0deg,rgba(53,242,200,.07) 0 1px,transparent 1px 48px),
    radial-gradient(120% 90% at 50% 100%,rgba(30,74,61,.9) 0%,var(--panel) 70%);
}
.figure__cap{
  position:absolute;
  left:0;
  bottom:0;
  z-index:2;
  padding:10px 14px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.1em;
  color:var(--cyan-soft);
}

/* ---------- 响应式 ---------- */
@media (max-width:1100px){
  .footer-grid{grid-template-columns:1fr 1fr;}
}

@media (max-width:980px){
  .split{grid-template-columns:1fr;}
  html{scroll-padding-top:150px;}
}

@media (max-width:900px){
  .nav-toggle{display:inline-flex;}
  .nav-bar__inner{justify-content:center;min-height:64px;}
  .nav-list{
    display:none;
    position:absolute;
    top:100%;
    left:0;
    right:0;
    z-index:70;
    flex-direction:column;
    gap:0;
    padding:6px var(--gutter) 18px;
    background:var(--panel);
    border-block:1px solid var(--line);
    box-shadow:0 18px 34px rgba(4,18,14,.62);
  }
  .nav-bar[data-open] .nav-list{display:flex;}
  .nav-list > li{border-bottom:1px solid var(--line-soft);}
  .nav-list > li:last-child{border-bottom:0;}
  .nav-link{width:100%;padding-block:15px;}
  .nav-link::after{display:none;}
  .nav-link[aria-current="page"]{color:var(--cyan);}
}

@media (max-width:760px){
  body{font-size:16px;}
  .utility-bar__inner{justify-content:center;}
  .utility-bar__service{display:none;}
  .masthead__kicker{letter-spacing:.24em;}
  .masthead__sub{letter-spacing:.22em;text-indent:.22em;}
}

@media (max-width:560px){
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-base{flex-direction:column;align-items:flex-start;}
  .footer-legal{gap:18px;}
}

@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
    scroll-behavior:auto !important;
  }
}