/* ==========================================================================
   乐鱼赛场 · 共享样式表 /assets/site.css
   视觉系统：夜间赛场灯光 + 记分牌仪表 + 云岭等高线静默带
   ========================================================================== */

/* ---------- 1. 设计令牌 ---------- */
:root{
  --deep:#071A2B;
  --deep-2:#0E2A44;
  --lime:#B8F135;
  --lime-mist:#E4FF9B;
  --coral:#FF6B4A;
  --gold:#F5C24B;
  --paper:#F4F7F5;
  --mist:#7E93A6;
  --ink:#04121F;
  --turf:#1F5E3D;

  --font-display:"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","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  --font-mono:"JetBrains Mono","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;

  --wrap:1280px;
  --gutter:clamp(18px,4vw,44px);
  --sect:clamp(64px,9vw,132px);
  --r-s:10px;
  --r-m:18px;
  --r-l:30px;
  --hair:rgba(126,147,166,.26);
  --hair-lime:rgba(184,241,53,.3);
  --ease:cubic-bezier(.22,.61,.36,1);
  --shadow:0 30px 70px -46px rgba(0,0,0,.96);
  --header-h:74px;
}

/* ---------- 2. 复位与基础 ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--deep);
  color:var(--paper);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img,svg,picture,video{max-width:100%;display:block;height:auto}
h1,h2,h3,h4{
  margin:0;
  font-family:var(--font-display);
  font-weight:900;
  line-height:1.1;
  letter-spacing:-.012em;
  text-wrap:balance;
}
p{margin:0 0 1em;text-wrap:pretty}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0}
li{list-style:none}
a{color:inherit}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
table{border-collapse:collapse;width:100%}
[hidden]{display:none !important}
:focus-visible{outline:2px solid var(--lime);outline-offset:3px;border-radius:6px}
::selection{background:var(--lime);color:var(--ink)}

/* ---------- 3. 无障碍跳转 ---------- */
.skip-link{
  position:fixed;
  top:10px;left:10px;
  z-index:200;
  transform:translateY(-180%);
  padding:10px 18px;
  border-radius:var(--r-s);
  background:var(--lime);
  color:var(--ink);
  font-weight:700;
  text-decoration:none;
  transition:transform .2s var(--ease);
}
.skip-link:focus{transform:translateY(0)}

.visually-hidden{
  position:absolute;
  width:1px;height:1px;
  margin:-1px;padding:0;
  overflow:hidden;
  clip:rect(0 0 0 0);
  white-space:nowrap;
  border:0;
}

#main-content{scroll-margin-top:calc(var(--header-h) + 20px)}

/* ---------- 4. 布局容器 ---------- */
.wrap{
  width:100%;
  max-width:var(--wrap);
  margin-inline:auto;
  padding-inline:var(--gutter);
}
.section{position:relative;padding-block:var(--sect)}
.section--tight{padding-block:clamp(40px,6vw,84px)}
.section--dark{background:var(--deep);color:var(--paper)}
.section--paper{background:var(--paper);color:var(--ink)}
.section--paper .lede{color:rgba(4,18,31,.72)}
.section--paper .eyebrow{color:#3f7a1d}
.section--paper .card{
  background:rgba(4,18,31,.04);
  border-color:rgba(4,18,31,.12);
  color:var(--ink);
}
.section--paper .card__label{color:rgba(4,18,31,.55)}
.section--paper .stat__num{color:#2f6b12}
.section--paper .stat__cap{color:rgba(4,18,31,.6)}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  margin-bottom:18px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.28em;
  text-transform:uppercase;
  color:var(--lime);
}
.eyebrow::before{
  content:"";
  display:block;
  width:26px;height:2px;
  background:currentColor;
}
.section-head{max-width:52ch;margin-bottom:clamp(28px,4vw,52px)}
.section-head__title{font-size:clamp(26px,3.6vw,44px);margin-bottom:14px}
.section-head__note{font-size:15px;color:var(--mist);max-width:46ch}
.section--paper .section-head__note{color:rgba(4,18,31,.6)}
.lede{
  font-size:clamp(16px,1.5vw,19px);
  line-height:1.85;
  color:rgba(244,247,245,.78);
  max-width:42ch;
}
.slash-rule{
  height:1px;
  border:0;
  margin:clamp(40px,6vw,88px) 0;
  background:linear-gradient(90deg,var(--coral) 0 18%,var(--lime) 18% 46%,var(--hair) 46% 100%);
  transform:skewY(-.6deg);
}

/* ---------- 5. 栅格 ---------- */
.grid{display:grid;gap:clamp(16px,2.4vw,30px)}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid--4{grid-template-columns:repeat(4,minmax(0,1fr))}
.grid--5-7{grid-template-columns:5fr 7fr}
.grid--7-5{grid-template-columns:7fr 5fr}
.grid--3-9{grid-template-columns:3fr 9fr}

/* ---------- 6. 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:11px 20px;
  border:1px solid transparent;
  border-radius:999px;
  font-family:var(--font-body);
  font-size:14.5px;
  font-weight:700;
  letter-spacing:.02em;
  text-decoration:none;
  white-space:nowrap;
  transition:transform .2s var(--ease),background-color .2s ease,color .2s ease,border-color .2s ease;
}
.btn--lime{background:var(--lime);color:var(--ink)}
.btn--lime:hover{background:var(--lime-mist);transform:translateY(-2px)}
.btn--ghost{border-color:rgba(244,247,245,.34);color:var(--paper)}
.btn--ghost:hover{border-color:var(--lime);color:var(--lime);transform:translateY(-2px)}
.btn--coral{background:var(--coral);color:#2B0D05}
.btn--coral:hover{background:#FF8A6E;transform:translateY(-2px)}
.section--paper .btn--ghost{border-color:rgba(4,18,31,.24);color:var(--ink)}
.section--paper .btn--ghost:hover{border-color:#2f6b12;color:#2f6b12}

/* ---------- 7. 头部 ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:60;
  background:transparent;
  color:var(--paper);
  border-bottom:1px solid transparent;
  transition:background-color .35s ease,border-color .35s ease,box-shadow .35s ease;
}
.site-header[data-scrolled]{
  background:#071A2B;
  border-bottom-color:rgba(184,241,53,.2);
  box-shadow:0 24px 54px -40px rgba(0,0,0,.95);
}
.header-inner{
  position:relative;
  display:flex;
  align-items:center;
  gap:clamp(16px,3vw,40px);
  width:100%;
  max-width:var(--wrap);
  margin-inline:auto;
  padding:22px var(--gutter);
  transition:padding .35s ease;
}
.site-header[data-scrolled] .header-inner{padding-block:12px}

.brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  flex:0 0 auto;
  text-decoration:none;
  color:inherit;
}
.brand-mark{
  position:relative;
  display:grid;
  place-items:center;
  width:34px;height:34px;
  border-radius:var(--r-s);
  background:linear-gradient(135deg,var(--lime) 0%,#6FCB2E 100%);
  box-shadow:0 1px 0 1px rgba(4,18,31,.35),0 14px 28px -18px var(--lime);
}
.brand-mark__dot{
  width:10px;height:10px;
  border-radius:50%;
  background:var(--ink);
  box-shadow:inset -2px -2px 0 0 rgba(184,241,53,.55);
}
.brand-text{display:flex;flex-direction:column;line-height:1.06}
.brand-text__name{
  font-family:var(--font-display);
  font-weight:900;
  font-size:19px;
  letter-spacing:.02em;
}
.brand-text__sub{
  font-family:var(--font-mono);
  font-size:10.5px;
  letter-spacing:.22em;
  color:var(--lime);
}

.site-nav{margin-left:auto}
.site-nav__list{
  display:flex;
  align-items:center;
  gap:clamp(10px,2vw,26px);
}
.site-nav__item{display:block}
.site-nav__link{
  position:relative;
  display:inline-block;
  padding:8px 2px;
  font-size:15px;
  letter-spacing:.02em;
  color:rgba(244,247,245,.82);
  text-decoration:none;
  white-space:nowrap;
  transition:color .2s ease;
}
.site-nav__link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:2px;
  background:var(--lime);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .24s var(--ease);
}
.site-nav__link:hover{color:var(--lime)}
.site-nav__link:hover::after{transform:scaleX(1)}
.site-nav__link[aria-current="page"]{color:var(--lime);font-weight:700}
.site-nav__link[aria-current="page"]::after{transform:scaleX(1)}

.header-actions{
  display:flex;
  align-items:center;
  gap:12px;
  flex:0 0 auto;
}
.header-cta{display:inline-flex}

.nav-toggle{
  display:none;
  align-items:center;
  justify-content:center;
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid rgba(244,247,245,.24);
  background:rgba(244,247,245,.07);
  transition:border-color .2s ease,background-color .2s ease;
}
.nav-toggle:hover{border-color:var(--lime);background:rgba(184,241,53,.12)}
.nav-toggle__bars{
  position:relative;
  display:block;
  width:18px;height:2px;
  border-radius:2px;
  background:currentColor;
}
.nav-toggle__bars::before,
.nav-toggle__bars::after{
  content:"";
  position:absolute;
  left:0;
  width:18px;height:2px;
  border-radius:2px;
  background:currentColor;
  transition:transform .22s var(--ease),top .22s var(--ease),opacity .22s ease;
}
.nav-toggle__bars::before{top:-6px}
.nav-toggle__bars::after{top:6px}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars{background:transparent}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before{top:0;transform:rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after{top:0;transform:rotate(-45deg)}

.header-rule{
  display:block;
  height:2px;
  width:var(--progress,0%);
  background:linear-gradient(90deg,var(--coral) 0%,var(--lime) 78%,var(--lime-mist) 100%);
  opacity:0;
  transition:width .12s linear,opacity .3s ease;
}
.site-header[data-scrolled] .header-rule{opacity:1}

@keyframes navDrop{
  from{opacity:0;transform:translateY(-10px)}
  to{opacity:1;transform:none}
}

/* ---------- 8. 页脚 ---------- */
.site-footer{
  position:relative;
  overflow:hidden;
  padding-top:clamp(56px,8vw,104px);
  background:var(--ink);
  color:rgba(244,247,245,.78);
  border-top:1px solid rgba(184,241,53,.2);
}
.footer-contour{
  position:absolute;
  left:0;right:0;bottom:0;
  height:min(320px,54%);
  pointer-events:none;
  opacity:.75;
  background-image:
    repeating-radial-gradient(circle at 6% 136%, rgba(31,94,61,.6) 0 1px, transparent 1px 30px),
    repeating-radial-gradient(circle at 98% 148%, rgba(184,241,53,.13) 0 1px, transparent 1px 44px);
}
.footer-inner{
  position:relative;
  display:grid;
  grid-template-columns:minmax(200px,1fr) 2.1fr;
  gap:clamp(30px,5vw,72px);
  width:100%;
  max-width:var(--wrap);
  margin-inline:auto;
  padding:0 var(--gutter);
}
.footer-brand__name{
  font-family:var(--font-display);
  font-weight:900;
  font-size:clamp(24px,3vw,34px);
  color:var(--paper);
  margin-bottom:8px;
}
.footer-brand__tag{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.22em;
  color:var(--lime);
  margin-bottom:14px;
}
.footer-brand__meta{
  font-size:13.5px;
  color:var(--mist);
  margin:0;
}
.footer-nav{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:clamp(20px,3vw,44px);
}
.footer-col__heading{
  margin-bottom:16px;
  font-family:var(--font-mono);
  font-size:11.5px;
  font-weight:400;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--lime);
}
.footer-col__list{display:flex;flex-direction:column;gap:10px}
.footer-col__link{
  display:inline-block;
  font-size:14.5px;
  color:rgba(244,247,245,.78);
  text-decoration:none;
  transition:color .2s ease,transform .2s var(--ease);
}
.footer-col__link:hover{color:var(--lime);transform:translateX(4px)}
.footer-contact{
  position:relative;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px clamp(18px,3vw,38px);
  margin-top:clamp(36px,5vw,68px);
  padding-top:22px;
  border-top:1px solid rgba(126,147,166,.24);
}
.footer-contact__line{
  margin:0;
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.03em;
  color:rgba(244,247,245,.86);
}
.footer-contact__note{
  margin:0;
  flex:1 1 240px;
  font-size:12.5px;
  color:var(--mist);
}
.footer-bottom{
  position:relative;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px 24px;
  margin-top:clamp(28px,4vw,48px);
  padding-block:24px clamp(30px,4vw,44px);
  border-top:1px solid rgba(126,147,166,.18);
}
.footer-legal{
  margin:0;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.08em;
  color:var(--mist);
}
.footer-sig{
  margin:0;
  font-size:13px;
  color:rgba(244,247,245,.72);
}
.footer-year{
  margin:0;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.08em;
  color:var(--mist);
}

/* ---------- 9. 卡片 · 数字 · 标签 ---------- */
.card{
  position:relative;
  padding:clamp(20px,2.4vw,30px);
  border:1px solid var(--hair);
  border-radius:var(--r-m);
  background:rgba(14,42,68,.62);
  transition:transform .25s var(--ease),border-color .25s ease,background-color .25s ease;
}
.card:hover{transform:translateY(-4px);border-color:rgba(255,107,74,.55)}
.card__label{
  display:block;
  margin-bottom:12px;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--mist);
}
.card__title{
  font-family:var(--font-display);
  font-weight:800;
  font-size:clamp(19px,2vw,24px);
  line-height:1.2;
  margin-bottom:10px;
}

.stat{display:block}
.stat__value{display:flex;align-items:baseline;gap:8px}
.stat__num{
  font-family:var(--font-mono);
  font-weight:700;
  font-size:clamp(30px,5.4vw,62px);
  line-height:1;
  letter-spacing:-.03em;
  color:var(--lime);
}
.stat__unit{
  font-family:var(--font-mono);
  font-size:clamp(12px,1.1vw,15px);
  letter-spacing:.1em;
  color:var(--mist);
}
.stat__cap{
  display:block;
  margin-top:10px;
  font-size:13px;
  line-height:1.6;
  letter-spacing:.04em;
  color:var(--mist);
}

.chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 12px;
  border-radius:999px;
  background:var(--lime-mist);
  color:var(--ink);
  font-size:12.5px;
  font-weight:700;
  letter-spacing:.04em;
}
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 10px;
  border:1px solid var(--hair-lime);
  border-radius:999px;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--lime);
}
.tag--coral{border-color:rgba(255,107,74,.5);color:var(--coral)}
.tag--gold{border-color:rgba(245,196,75,.5);color:var(--gold)}

/* ---------- 10. 图片容器（页面阶段放置占位） ---------- */
.media{
  position:relative;
  overflow:hidden;
  aspect-ratio:16/9;
  border:1px solid var(--hair);
  border-radius:var(--r-m);
  background:
    repeating-linear-gradient(90deg,rgba(31,94,61,.5) 0 1px,transparent 1px 52px),
    linear-gradient(150deg,var(--deep-2) 0%,var(--ink) 100%);
}
.media--wide{aspect-ratio:21/9}
.media--tall{aspect-ratio:3/4}
.media--square{aspect-ratio:1/1}
.media__img{width:100%;height:100%;object-fit:cover}
.media__cap{
  position:absolute;
  left:0;right:0;bottom:0;
  margin:0;
  padding:14px 16px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.06em;
  color:var(--paper);
  background:linear-gradient(transparent,rgba(4,18,31,.9));
}

/* ---------- 11. 横向时间轴容器 ---------- */
.scroll-x{
  overflow-x:auto;
  overflow-y:hidden;
  scroll-snap-type:x proximity;
  -webkit-overflow-scrolling:touch;
  padding-bottom:14px;
  scrollbar-width:thin;
  scrollbar-color:var(--lime) transparent;
}
.scroll-x__track{
  display:flex;
  gap:clamp(14px,2vw,24px);
  min-width:max-content;
  padding-inline:2px;
}
.scroll-x__track > *{scroll-snap-align:start}
.scroll-x::-webkit-scrollbar{height:6px}
.scroll-x::-webkit-scrollbar-track{background:rgba(126,147,166,.2);border-radius:99px}
.scroll-x::-webkit-scrollbar-thumb{background:var(--lime);border-radius:99px}

/* ---------- 12. 折叠面板 ---------- */
.panel{
  overflow:hidden;
  border:1px solid var(--hair);
  border-radius:var(--r-m);
  background:rgba(14,42,68,.6);
}
.panel + .panel{margin-top:12px}
.panel__head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  width:100%;
  padding:16px 20px;
  background:var(--deep-2);
  font-family:var(--font-display);
  font-weight:800;
  font-size:17px;
  text-align:left;
  transition:color .2s ease;
}
.panel__head::after{
  content:"+";
  font-family:var(--font-mono);
  font-size:19px;
  color:var(--lime);
  transition:transform .24s var(--ease);
}
.panel__head:hover{color:var(--lime)}
.panel[data-open] .panel__head::after{content:"–";transform:rotate(180deg)}
.panel__body{
  max-height:0;
  overflow:hidden;
  padding:0 20px;
  font-size:15.5px;
  color:rgba(244,247,245,.82);
  transition:max-height .32s var(--ease),padding .32s var(--ease);
}
.panel[data-open] .panel__body{max-height:1000px;padding:8px 20px 22px}

/* ---------- 13. 筛选工具条 ---------- */
.toolbar{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
}
.filter-btn{
  padding:9px 18px;
  border:1px solid var(--hair);
  border-radius:999px;
  font-size:14px;
  color:rgba(244,247,245,.8);
  transition:border-color .2s ease,color .2s ease,background-color .2s ease,transform .2s var(--ease);
}
.filter-btn:hover{border-color:var(--lime);color:var(--lime);transform:translateY(-2px)}
.filter-btn[aria-pressed="true"]{
  background:var(--lime);
  border-color:var(--lime);
  color:var(--ink);
  font-weight:700;
}
.section--paper .filter-btn{border-color:rgba(4,18,31,.18);color:rgba(4,18,31,.72)}
.section--paper .filter-btn[aria-pressed="true"]{background:#2f6b12;border-color:#2f6b12;color:var(--paper)}

/* ---------- 14. 面包屑 ---------- */
.breadcrumb{padding-block:18px}
.breadcrumb__list{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-size:12.5px;
  letter-spacing:.06em;
  color:var(--mist);
}
.breadcrumb__item{display:flex;align-items:center;gap:8px}
.breadcrumb__item:not(:last-child)::after{content:"/";color:rgba(126,147,166,.6)}
.breadcrumb__link{color:var(--mist);text-decoration:none;transition:color .2s ease}
.breadcrumb__link:hover{color:var(--lime)}
.breadcrumb__current{color:var(--paper)}

/* ---------- 15. 进入视口显影 ---------- */
[data-reveal]{
  opacity:0;
  transform:translateY(16px);
  transition:opacity .5s var(--ease),transform .5s var(--ease);
}
[data-reveal][data-visible]{opacity:1;transform:none}

/* ---------- 16. 响应式 ---------- */
@media (max-width:1100px){
  .grid--4{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:980px){
  :root{--header-h:64px}
  .header-cta{display:none}
  .nav-toggle{display:inline-flex}
  .site-nav{
    position:absolute;
    top:100%;left:0;right:0;
    display:none;
    padding:14px var(--gutter) 20px;
    background:#071A2B;
    border-top:1px solid rgba(184,241,53,.22);
    box-shadow:0 34px 64px -34px rgba(0,0,0,.98);
  }
  .site-nav[data-open]{display:block;animation:navDrop .24s var(--ease) both}
  .site-nav__list{
    flex-wrap:nowrap;
    gap:10px;
    overflow-x:auto;
    scroll-snap-type:x proximity;
    padding-bottom:6px;
    -webkit-overflow-scrolling:touch;
  }
  .site-nav__item{flex:0 0 auto;scroll-snap-align:start}
  .site-nav__link{
    padding:9px 16px;
    border:1px solid rgba(244,247,245,.2);
    border-radius:999px;
    background:rgba(244,247,245,.06);
    font-size:14.5px;
  }
  .site-nav__link::after{display:none}
  .site-nav__link[aria-current="page"]{
    background:rgba(184,241,53,.14);
    border-color:var(--lime);
  }
  .grid--5-7,.grid--7-5,.grid--3-9{grid-template-columns:1fr}
  .footer-inner{grid-template-columns:1fr}
}
@media (max-width:720px){
  .grid--2,.grid--3,.grid--4{grid-template-columns:1fr}
  .footer-nav{grid-template-columns:1fr 1fr;gap:24px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .scroll-x__track > *{min-width:min(78vw,320px)}
}
@media (max-width:460px){
  .footer-nav{grid-template-columns:1fr}
  .brand-text__sub{letter-spacing:.14em;font-size:10px}
}

/* ---------- 17. 动效偏好 ---------- */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  [data-reveal]{opacity:1;transform:none}
  .site-nav[data-open]{animation:none}
}