/* =========================================================
   乐鱼体育 · 共享外壳样式 /assets/site.css
   设计逻辑：纵向叙事长卷 × 高原澄澈 × 竞技数据流
   ========================================================= */

:root{
  --abyss:#0B1F3A;
  --deep:#123A63;
  --race:#1E5C96;
  --signal:#38F27A;
  --lime:#0FA84E;
  --sunset:#FF7A2F;
  --sunset-ink:#B84F14;
  --glacier:#F4F8FB;
  --mist:#DCE7F1;
  --ink:#05101F;
  --gray:#7A8EA3;

  --font-display:"MiSans","HarmonyOS Sans","Poppins","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono","SFMono-Regular",Consolas,"Noto Sans SC",ui-monospace,monospace;
  --font-body:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;

  --r-sm:14px;
  --r-md:24px;
  --r-lg:36px;
  --pill:999px;
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.75;
  color:var(--ink);
  background:var(--glacier);
  -webkit-font-smoothing:antialiased;
}
img,svg{display:block;max-width:100%}
h1,h2,h3,h4,h5{
  margin:0;
  font-family:var(--font-display);
  font-weight:900;
  line-height:1.14;
  letter-spacing:-.02em;
  color:inherit;
}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
a{color:inherit}
table{border-collapse:collapse}
button{font:inherit}

:focus-visible{
  outline:2px solid var(--lime);
  outline-offset:3px;
  border-radius:6px;
}
.masthead :focus-visible,
.site-footer :focus-visible,
.section--dark :focus-visible,
.section--deep :focus-visible,
.card--dark :focus-visible{
  outline-color:var(--signal);
}

#main-content{display:block;scroll-margin-top:170px}

/* ---------- 容器与工具类 ---------- */
.wrap{
  width:100%;
  max-width:1320px;
  margin:0 auto;
  padding:0 24px;
}
.mono{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  font-feature-settings:"tnum" 1;
}

/* ---------- skip link ---------- */
.skip-link{
  position:fixed;
  left:16px;
  top:-72px;
  z-index:200;
  padding:11px 20px;
  border-radius:var(--pill);
  background:var(--signal);
  color:var(--ink);
  font-family:var(--font-display);
  font-weight:800;
  font-size:14px;
  text-decoration:none;
  transition:top .2s ease;
}
.skip-link:focus{top:14px}

/* ---------- 刊头 ---------- */
.masthead{
  position:sticky;
  top:0;
  z-index:90;
  background:var(--abyss);
  color:var(--glacier);
  border-bottom:1px solid rgba(30,92,150,.6);
  transition:box-shadow .25s ease;
}
.masthead.is-condensed{box-shadow:0 16px 36px -24px rgba(5,16,31,.95)}

.masthead__progress{
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  height:2px;
  background:rgba(30,92,150,.4);
  pointer-events:none;
}
.masthead__progress-bar{
  display:block;
  height:100%;
  width:0;
  background:var(--signal);
  transition:width .1s linear;
}

.masthead__utility{border-bottom:1px dashed rgba(30,92,150,.55)}
.masthead__utility-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding-top:9px;
  padding-bottom:9px;
  font-size:12.5px;
  letter-spacing:.08em;
  color:rgba(244,248,251,.62);
}
.masthead__tagline{margin:0}
.masthead__stamp{
  margin:0;
  font-size:12px;
  letter-spacing:.1em;
  color:var(--gray);
  white-space:nowrap;
}

.masthead__core{padding:20px 0 14px}
.masthead__core-inner{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:center;
  min-height:58px;
}
.masthead__brand{margin:0}
.masthead__logo{
  display:inline-flex;
  align-items:center;
  gap:14px;
  text-decoration:none;
  color:var(--glacier);
}
.masthead__logo-main{
  display:inline-block;
  font-family:var(--font-display);
  font-weight:900;
  font-size:clamp(28px,4.4vw,48px);
  letter-spacing:-.035em;
  line-height:1;
  transition:font-size .25s ease;
}
.masthead__logo-side{
  display:inline-block;
  writing-mode:vertical-rl;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.3em;
  line-height:1;
  color:var(--signal);
  border-left:1px solid rgba(56,242,122,.35);
  padding-left:9px;
}

/* ---------- 移动导航按钮 ---------- */
.nav-toggle{
  display:none;
  position:absolute;
  right:24px;
  top:50%;
  transform:translateY(-50%);
  align-items:center;
  gap:9px;
  padding:9px 16px;
  border-radius:var(--pill);
  border:1px solid rgba(56,242,122,.5);
  background:rgba(30,92,150,.34);
  color:var(--signal);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.16em;
  cursor:pointer;
}
.nav-toggle__bars{
  display:inline-flex;
  flex-direction:column;
  justify-content:center;
  gap:3px;
  width:16px;
}
.nav-toggle__bars i{
  display:block;
  height:1.5px;
  background:currentColor;
  border-radius:2px;
  transition:transform .22s ease,opacity .22s ease;
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(1){transform:translateY(4.5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(3){transform:translateY(-4.5px) rotate(-45deg)}

/* ---------- 栏目条 ---------- */
.primary-nav{padding-bottom:18px}
.primary-nav__list{
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:8px;
  list-style:none;
  margin:0;
  padding:0;
}
.primary-nav__item{display:block}
.primary-nav__link{
  display:inline-block;
  padding:8px 20px;
  border-radius:var(--pill);
  border:1px solid rgba(30,92,150,.85);
  color:rgba(244,248,251,.8);
  font-size:14.5px;
  letter-spacing:.04em;
  text-decoration:none;
  white-space:nowrap;
  transition:color .18s ease,border-color .18s ease,background .18s ease;
}
.primary-nav__link:hover{
  color:var(--glacier);
  border-color:var(--race);
  background:rgba(30,92,150,.32);
}
.primary-nav__link[aria-current="page"]{
  color:var(--signal);
  border-color:var(--signal);
  background:rgba(56,242,122,.1);
  font-weight:700;
}

/* ---------- 刊头收拢态 ---------- */
.masthead.is-condensed .masthead__utility{display:none}
.masthead.is-condensed .masthead__core{padding:10px 0 8px}
.masthead.is-condensed .masthead__logo-main{font-size:clamp(20px,2.4vw,28px)}
.masthead.is-condensed .masthead__logo-side{font-size:10px;letter-spacing:.24em}
.masthead.is-condensed .primary-nav{padding-bottom:12px}
.masthead.is-condensed .primary-nav__link{padding:6px 16px;font-size:13.5px}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  background:var(--abyss);
  color:rgba(244,248,251,.78);
}
.site-footer__band{
  display:block;
  height:4px;
  width:100%;
  background:linear-gradient(90deg,var(--signal) 0 30%,var(--sunset) 30% 58%,var(--race) 58% 100%);
}
.site-footer__grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:40px;
  padding-top:62px;
  padding-bottom:50px;
}
.site-footer__col{min-width:0}
.site-footer__logo{
  display:flex;
  align-items:baseline;
  gap:10px;
  margin:0 0 14px;
  font-family:var(--font-display);
  font-weight:900;
  font-size:30px;
  letter-spacing:-.03em;
  color:var(--glacier);
}
.site-footer__logo-side{
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:500;
  letter-spacing:.3em;
  color:var(--signal);
}
.site-footer__line{
  max-width:26ch;
  font-size:14.5px;
  line-height:1.7;
  color:rgba(244,248,251,.6);
}
.site-footer__title{
  margin:0 0 18px;
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:600;
  letter-spacing:.22em;
  color:var(--signal);
}
.site-footer__list{
  list-style:none;
  margin:0;
  padding:0;
  display:flex;
  flex-direction:column;
  gap:12px;
  font-size:14.5px;
}
.site-footer__list a{
  color:rgba(244,248,251,.78);
  text-decoration:none;
  border-bottom:1px solid transparent;
  transition:color .18s ease,border-color .18s ease;
}
.site-footer__list a:hover{
  color:var(--signal);
  border-bottom-color:rgba(56,242,122,.5);
}
.site-footer__muted{
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.05em;
  color:var(--gray);
}
.site-footer__base{border-top:1px solid rgba(30,92,150,.5)}
.site-footer__base-inner{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px 30px;
  padding-top:22px;
  padding-bottom:28px;
  font-size:13px;
  color:rgba(244,248,251,.62);
}

/* ---------- 通用按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding:13px 26px;
  border-radius:var(--pill);
  border:1px solid transparent;
  font-family:var(--font-display);
  font-weight:800;
  font-size:15px;
  letter-spacing:.01em;
  text-decoration:none;
  cursor:pointer;
  transition:transform .18s ease,background .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.btn--signal{
  background:var(--signal);
  color:var(--ink);
}
.btn--signal:hover{
  transform:translateY(-2px);
  box-shadow:0 14px 28px -16px rgba(56,242,122,.7);
}
.btn--ghost{
  background:transparent;
  border-color:rgba(56,242,122,.55);
  color:var(--signal);
}
.btn--ghost:hover{background:rgba(56,242,122,.12)}
.btn--outline{
  background:transparent;
  border-color:var(--race);
  color:var(--abyss);
}
.btn--outline:hover{border-color:var(--lime);color:var(--lime)}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  padding:18px 0;
  font-family:var(--font-mono);
  font-size:12.5px;
  letter-spacing:.08em;
  color:var(--gray);
}
.breadcrumb ol{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:6px 10px;
  list-style:none;
  margin:0;
  padding:0;
}
.breadcrumb li{display:inline-flex;align-items:center;gap:10px}
.breadcrumb li+li::before{content:"/";color:rgba(122,142,163,.7)}
.breadcrumb a{
  text-decoration:none;
  border-bottom:1px solid rgba(122,142,163,.4);
  transition:color .18s ease,border-color .18s ease;
}
.breadcrumb a:hover{color:var(--lime);border-color:var(--lime)}
.breadcrumb [aria-current="page"]{color:var(--lime)}
.breadcrumb--dark{color:rgba(244,248,251,.6)}
.breadcrumb--dark a:hover,
.breadcrumb--dark [aria-current="page"]{color:var(--signal)}

/* ---------- 正文容器 ---------- */
.prose{max-width:42em}
.prose>:first-child{margin-top:0}
.prose p{margin:0 0 1.2em}
.prose h2{font-size:clamp(24px,3vw,32px);margin:1.9em 0 .7em}
.prose h3{font-size:21px;margin:1.6em 0 .6em}
.prose ul,.prose ol{margin:0 0 1.2em;padding-left:1.35em}
.prose li{margin-bottom:.4em}
.prose a{color:var(--lime);text-underline-offset:3px}
.prose strong{font-weight:800}
.prose blockquote{
  margin:1.6em 0;
  padding:16px 22px;
  border-left:3px solid var(--signal);
  background:var(--mist);
  border-radius:0 var(--r-md) var(--r-md) 0;
  color:var(--abyss);
}

/* ---------- 章节 ---------- */
.section{position:relative;padding:78px 0}
.section--tight{padding:48px 0}
.section--dark{background:var(--abyss);color:var(--glacier)}
.section--deep{background:var(--deep);color:var(--glacier)}
.section--mist{background:var(--mist)}
.section--white{background:#fff}
.section__num{
  display:block;
  margin-bottom:14px;
  font-family:var(--font-mono);
  font-size:13px;
  font-weight:600;
  letter-spacing:.26em;
  color:var(--lime);
}
.section--dark .section__num,
.section--deep .section__num{color:var(--signal)}
.section__title{font-size:clamp(27px,3.6vw,40px)}
.section__lede{
  max-width:38em;
  margin-top:14px;
  font-size:16px;
  color:var(--gray);
}
.section--dark .section__lede,
.section--deep .section__lede{color:rgba(244,248,251,.68)}

/* ---------- 竖向注脚 ---------- */
.note-vertical{
  writing-mode:vertical-rl;
  font-family:var(--font-mono);
  font-size:12.5px;
  letter-spacing:.2em;
  line-height:1;
  color:var(--gray);
}
.section--dark .note-vertical,
.section--deep .note-vertical{color:rgba(244,248,251,.55)}

/* ---------- 网格 ---------- */
.grid{display:grid;gap:24px}
.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--split{grid-template-columns:minmax(0,1.6fr) minmax(0,1fr)}

/* ---------- 卡片 ---------- */
.card{
  position:relative;
  overflow:hidden;
  padding:24px;
  border:1px solid var(--mist);
  border-radius:var(--r-md);
  background:#fff;
}
.card--dark{
  background:var(--deep);
  border-color:rgba(30,92,150,.65);
  color:var(--glacier);
}
.card--tilt{transform:rotate(-1.6deg)}
.card--signal-edge::before{
  content:"";
  position:absolute;
  left:0;
  top:0;
  width:3px;
  height:100%;
  background:var(--signal);
}
.card__title{font-size:19px;font-weight:800}
.card__meta{
  margin-top:8px;
  font-family:var(--font-mono);
  font-size:12.5px;
  letter-spacing:.08em;
  color:var(--gray);
}
.card--dark .card__meta{color:rgba(244,248,251,.55)}

/* ---------- 胶囊标签 ---------- */
.pill{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:5px 14px;
  border-radius:var(--pill);
  border:1px solid rgba(30,92,150,.4);
  background:rgba(30,92,150,.06);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.08em;
  color:var(--race);
}
.pill--signal{
  border-color:rgba(56,242,122,.5);
  background:rgba(56,242,122,.1);
  color:var(--lime);
}
.pill--sunset{
  border-color:rgba(255,122,47,.45);
  background:rgba(255,122,47,.1);
  color:var(--sunset-ink);
}
.section--dark .pill,
.section--deep .pill,
.card--dark .pill{
  border-color:rgba(56,242,122,.4);
  background:rgba(56,242,122,.08);
  color:var(--signal);
}

/* ---------- 数据数字 ---------- */
.stat{
  display:inline-block;
  font-family:var(--font-mono);
  font-weight:700;
  font-variant-numeric:tabular-nums;
  letter-spacing:-.02em;
  line-height:1;
}
.stat--xl{font-size:clamp(32px,5vw,56px)}
.stat--lg{font-size:clamp(25px,3.4vw,38px)}
.stat--signal{color:var(--signal)}
.stat--lime{color:var(--lime)}
.stat--sunset{color:var(--sunset)}
.section--dark .stat--lime,
.section--deep .stat--lime,
.card--dark .stat--lime{color:var(--signal)}

/* ---------- 数据表 ---------- */
.data-table{
  width:100%;
  font-size:14.5px;
}
.data-table th,
.data-table td{
  padding:12px 14px;
  text-align:left;
  border-bottom:1px solid var(--mist);
}
.data-table th{
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:600;
  letter-spacing:.12em;
  color:var(--gray);
}
.data-table td.num{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  text-align:right;
}
.section--dark .data-table th,
.section--dark .data-table td,
.section--deep .data-table th,
.section--deep .data-table td{border-bottom-color:rgba(30,92,150,.55)}
.section--dark .data-table th,
.section--deep .data-table th{color:rgba(244,248,251,.55)}

/* ---------- 图片容器 ---------- */
.media-frame{
  position:relative;
  display:block;
  overflow:hidden;
  border-radius:var(--r-lg);
  aspect-ratio:16/9;
  background:linear-gradient(160deg,var(--deep) 0%,var(--abyss) 62%,var(--ink) 100%);
}
.media-frame img{
  width:100%;
  height:100%;
  object-fit:cover;
}
.media-frame--tall{aspect-ratio:3/4}
.media-frame--wide{aspect-ratio:21/9}
.media-frame--square{aspect-ratio:1/1}
.media-frame::after{
  content:"";
  position:absolute;
  inset:0;
  border-radius:inherit;
  box-shadow:inset 0 0 0 1px rgba(56,242,122,.18);
  pointer-events:none;
}
.media-frame__caption{
  position:absolute;
  left:18px;
  bottom:16px;
  z-index:2;
  padding:5px 12px;
  border-radius:var(--pill);
  background:rgba(5,16,31,.6);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.1em;
  color:rgba(244,248,251,.9);
}

/* ---------- 进入视口显现 ---------- */
.js [data-reveal]{
  opacity:0;
  transform:translateY(12px);
  transition:opacity .5s ease,transform .5s ease;
}
.js [data-reveal].is-visible{
  opacity:1;
  transform:none;
}

/* ---------- 响应式 ---------- */
@media (max-width:1100px){
  .grid--4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .site-footer__grid{grid-template-columns:1.4fr 1fr 1fr;gap:34px}
  .site-footer__col:last-child{grid-column:1/-1}
}
@media (max-width:900px){
  .wrap{padding:0 18px}
  .section{padding:58px 0}

  .nav-toggle{display:inline-flex;right:18px}
  .masthead__core-inner{justify-content:flex-start;padding-right:104px}
  .masthead__logo-main{font-size:clamp(24px,7vw,32px);letter-spacing:-.03em}
  .masthead__logo-side{font-size:10px;letter-spacing:.24em}

  .primary-nav{display:none;padding-bottom:14px}
  .masthead[data-open] .primary-nav{display:block}
  .primary-nav__list{
    flex-wrap:nowrap;
    justify-content:flex-start;
    overflow-x:auto;
    padding:2px 18px 10px;
    scrollbar-width:none;
    -webkit-overflow-scrolling:touch;
  }
  .primary-nav__list::-webkit-scrollbar{display:none}
  .masthead.is-condensed .masthead__logo-main{font-size:22px}
  .masthead.is-condensed .primary-nav__link{padding:6px 15px;font-size:13px}

  .grid--3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid--split{grid-template-columns:minmax(0,1fr)}
  .site-footer__base-inner{flex-direction:column;align-items:flex-start;gap:8px}
}
@media (max-width:640px){
  .grid--2,.grid--3,.grid--4{grid-template-columns:minmax(0,1fr)}
  .site-footer__grid{grid-template-columns:minmax(0,1fr);gap:30px;padding-top:48px;padding-bottom:38px}
  .site-footer__col:last-child{grid-column:auto}
  .masthead__utility-inner{flex-direction:column;align-items:flex-start;gap:4px}
  .masthead__stamp{display:none}
  .card--tilt{transform:none}
}
@media (max-width:420px){
  .masthead__logo-side{display:none}
  .nav-toggle{padding:8px 13px;letter-spacing:.1em}
}

/* ---------- 动效降级 ---------- */
@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 [data-reveal]{
    opacity:1;
    transform:none;
    transition:none;
  }
  .masthead__progress-bar{transition:none}
}