/* ==========================================================================
   乐鱼赛事 · 共享外壳样式 / assets/site.css
   01 变量  02 重置与基础排版  03 头部框架  04 页脚  05 通用组件  06 动效  07 响应式
   ========================================================================== */

/* ---------- 01 变量 ---------- */
:root{
  --ink-900:#06182B;
  --ink-800:#08203A;
  --ink-700:#0D2C46;
  --paper:#F4EEE3;
  --espresso:#241A15;
  --cyan:#34E2D4;
  --coral:#FF6A45;
  --steel:#8C99A8;
  --lime:#B6FF45;
  --amber:#F5A524;
  --glass:rgba(255,255,255,.08);
  --glass-line:rgba(255,255,255,.16);
  --line-cool:rgba(52,226,212,.20);
  --line-soft:rgba(140,153,168,.22);
  --text-bright:#EAF1F6;
  --text-mute:rgba(214,226,235,.74);
  --rail-w:236px;
  --band-h:58px;
  --dim-h:54px;
  --radius:16px;
  --radius-sm:10px;
  --gutter:clamp(18px,3.4vw,44px);
  --maxw:1320px;
  --font-sans:"PingFang SC","Hiragino Sans GB","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,"JetBrains Mono","Roboto Mono",Menlo,Consolas,monospace;
  --ease:cubic-bezier(.22,.62,.32,1);
  --shadow-card:0 26px 52px -34px rgba(0,0,0,.85);
}

/* ---------- 02 重置与基础排版 ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,h5,p,figure,blockquote,dl,dd{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img,svg,picture,video{display:block;max-width:100%}
button{font:inherit;color:inherit;background:none;border:0}
table{border-collapse:collapse;width:100%}

body{
  min-height:100vh;
  background:var(--ink-900);
  color:var(--text-bright);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  padding-left:var(--rail-w);
  padding-top:var(--band-h);
  padding-bottom:var(--dim-h);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
::selection{background:var(--cyan);color:var(--ink-900)}
a{color:var(--cyan);text-decoration:none}
a:hover{color:#8FF3EA}
:where(a,button,[tabindex],summary):focus-visible{
  outline:2px solid var(--cyan);
  outline-offset:3px;
  border-radius:8px;
}
.paper-zone :where(a,button):focus-visible{outline-color:var(--coral)}
.num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-weight:600;letter-spacing:-.02em}

/* ---------- 03 头部框架 ---------- */
.site-header{position:fixed;inset:0;z-index:80;pointer-events:none}

.skip-link{
  position:absolute;top:10px;left:50%;z-index:99;
  transform:translate(-50%,-240%);
  padding:10px 20px;border-radius:999px;
  background:var(--coral);color:#24100A;
  font-size:14px;font-weight:700;letter-spacing:.02em;
  pointer-events:auto;
  transition:transform .2s var(--ease);
}
.skip-link:focus{transform:translate(-50%,0);color:#24100A}

.brand-rail{
  position:absolute;left:0;top:0;bottom:0;width:var(--rail-w);
  display:flex;flex-direction:column;gap:16px;
  padding:20px 18px 18px;
  background:linear-gradient(180deg,#06182B 0%,#0A2440 52%,#06182B 100%);
  border-right:1px solid var(--line-cool);
  pointer-events:auto;
}
.brand-mark{display:flex;align-items:center;gap:12px;color:#F4EEE3}
.brand-mark:hover{color:#F4EEE3}
.brand-glyph{
  flex:none;width:42px;height:42px;display:grid;place-items:center;
  border-radius:12px;
  background:linear-gradient(140deg,var(--cyan) 0%,var(--lime) 100%);
  color:#04202B;
  font-family:var(--font-mono);font-size:13px;font-weight:700;letter-spacing:.04em;
  box-shadow:0 0 0 1px rgba(52,226,212,.4),0 12px 22px -14px rgba(52,226,212,.9);
}
.brand-name{display:block;font-size:19px;font-weight:800;line-height:1.25;letter-spacing:.01em}
.brand-tagline{display:block;margin-top:3px;font-family:var(--font-mono);font-size:11px;line-height:1.5;letter-spacing:.08em;color:var(--steel)}

.nav-toggle{
  display:none;align-items:center;gap:9px;
  padding:8px 14px;border-radius:999px;
  border:1px solid var(--line-cool);background:var(--glass);
  color:var(--text-bright);font-size:13px;font-weight:600;letter-spacing:.03em;
  cursor:pointer;
}
.nav-toggle-bars{position:relative;display:block;width:16px;height:2px;border-radius:2px;background:currentColor}
.nav-toggle-bars::before,
.nav-toggle-bars::after{
  content:"";position:absolute;left:0;width:16px;height:2px;border-radius:2px;background:currentColor;
}
.nav-toggle-bars::before{top:-5px}
.nav-toggle-bars::after{top:5px}

.rail-nav{flex:1 1 auto;margin-top:2px}
.rail-nav-list{display:flex;flex-direction:column;gap:3px}
.rail-link{
  position:relative;display:flex;align-items:center;gap:10px;
  padding:10px 12px 10px 14px;border-radius:var(--radius-sm);
  color:var(--text-mute);font-size:15px;font-weight:600;letter-spacing:.01em;
  transition:background .18s var(--ease),color .18s var(--ease);
}
.rail-link:hover{background:var(--glass);color:#fff}
.rail-link[aria-current="page"]{background:rgba(52,226,212,.12);color:#F4EEE3}
.rail-link[aria-current="page"]::before{
  content:"";position:absolute;left:2px;top:50%;
  width:3px;height:22px;margin-top:-11px;border-radius:2px;background:var(--coral);
}
.rail-idx{font-family:var(--font-mono);font-size:11px;letter-spacing:.06em;color:var(--steel)}
.rail-link[aria-current="page"] .rail-idx{color:var(--cyan)}

.rail-foot{
  margin-top:auto;padding-top:16px;
  border-top:1px solid var(--line-soft);
  font-family:var(--font-mono);font-size:11px;line-height:1.9;letter-spacing:.06em;color:var(--steel);
}
.rail-foot strong{color:var(--lime);font-weight:600}

.mast-panel{display:contents}

.season-band{
  position:absolute;top:0;left:var(--rail-w);right:0;height:var(--band-h);
  display:flex;align-items:center;gap:16px;
  padding:0 var(--gutter);
  background:rgba(6,24,43,.74);
  border-bottom:1px solid var(--line-cool);
  backdrop-filter:blur(16px) saturate(150%);
  -webkit-backdrop-filter:blur(16px) saturate(150%);
  pointer-events:auto;
}
.band-label{
  flex:none;display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.2em;text-transform:uppercase;
  color:var(--steel);
}
.band-label::before{content:"";width:16px;height:2px;border-radius:2px;background:var(--coral)}
.band-chips{display:flex;align-items:center;gap:6px;overflow-x:auto;scrollbar-width:none}
.band-chips::-webkit-scrollbar{display:none}
.chip{
  padding:6px 15px;border-radius:999px;
  border:1px solid rgba(140,153,168,.32);
  color:rgba(234,241,246,.8);
  font-size:13px;font-weight:600;letter-spacing:.04em;white-space:nowrap;
  cursor:pointer;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.chip:hover{border-color:var(--cyan);color:#fff;background:var(--glass)}
.chip[aria-pressed="true"]{background:var(--coral);border-color:var(--coral);color:#24100A}
.band-tools{margin-left:auto;display:flex;align-items:center;gap:12px}
.band-link{
  padding:6px 12px;border-radius:8px;
  font-size:13px;font-weight:600;letter-spacing:.02em;
  color:rgba(234,241,246,.8);
  transition:background .18s var(--ease),color .18s var(--ease);
}
.band-link:hover{color:var(--cyan);background:var(--glass)}

.dimension-band{
  position:absolute;left:var(--rail-w);right:0;bottom:0;min-height:var(--dim-h);
  display:flex;align-items:center;gap:18px;
  padding:0 var(--gutter);
  background:linear-gradient(180deg,rgba(13,44,70,.92),rgba(6,24,43,.96));
  border-top:1px solid var(--line-cool);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  pointer-events:auto;
}
.dim-list{display:flex;align-items:center;gap:20px;flex-wrap:wrap}
.dim-link{
  font-size:13px;font-weight:600;letter-spacing:.03em;
  color:rgba(214,226,235,.82);
  padding-bottom:2px;border-bottom:1px solid transparent;
  transition:color .18s var(--ease),border-color .18s var(--ease);
}
.dim-link:hover{color:var(--cyan);border-color:var(--cyan)}
.dim-note{
  margin-left:auto;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;color:var(--steel);
}

/* ---------- 04 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:clamp(40px,6vw,80px);
  padding:clamp(38px,5.5vw,66px) 0 26px;
  background:linear-gradient(180deg,#06182B 0%,#08203A 42%,#06182B 100%);
  border-top:1px solid var(--line-cool);
  color:var(--text-mute);
}
.foot-inner{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:var(--gutter)}
.foot-mast{display:grid;gap:14px;padding-bottom:26px;border-bottom:1px solid var(--line-soft)}
.foot-brand{font-size:clamp(24px,3.2vw,34px);font-weight:900;line-height:1.2;letter-spacing:-.01em;color:#F4EEE3}
.foot-brand::after{
  content:"";display:block;width:46px;height:3px;margin-top:12px;border-radius:2px;
  background:linear-gradient(90deg,var(--cyan),var(--coral));
}
.foot-note{max-width:56ch;font-size:14px;line-height:1.85;color:rgba(201,214,224,.72)}
.foot-grid{display:grid;gap:26px;grid-template-columns:1fr;padding-block:30px}
.foot-col{min-width:0}
.foot-title{
  display:flex;align-items:center;gap:8px;margin-bottom:14px;
  font-family:var(--font-mono);font-size:11px;font-weight:600;
  letter-spacing:.18em;text-transform:uppercase;color:var(--cyan);
}
.foot-title::before{content:"";width:12px;height:1px;background:var(--cyan)}
.foot-list{display:grid;gap:9px;font-size:14px}
.foot-list a{
  display:inline-block;color:rgba(214,226,235,.82);
  border-bottom:1px solid transparent;
  transition:color .18s var(--ease),border-color .18s var(--ease);
}
.foot-list a:hover{color:var(--cyan);border-color:var(--cyan)}
.foot-contact{
  margin-top:16px;
  font-family:var(--font-mono);font-size:12.5px;line-height:1.95;
  color:rgba(214,226,235,.76);
  word-break:break-all;
}
.foot-base{
  display:flex;flex-wrap:wrap;gap:10px 22px;justify-content:space-between;
  padding-top:20px;border-top:1px solid var(--line-soft);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;
  color:var(--steel);
}

/* ---------- 05 通用组件 ---------- */
.wrap{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:var(--gutter)}

.crumb{padding-block:18px}
.crumb-list{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--steel)}
.crumb-list li{display:inline-flex;align-items:center;gap:8px}
.crumb-list li+li::before{content:"/";color:rgba(140,153,168,.55)}
.crumb-list a{color:var(--steel)}
.crumb-list a:hover{color:var(--cyan)}
.crumb-current{color:var(--text-bright)}

.grid{display:grid;gap:clamp(18px,2.4vw,28px);grid-template-columns:1fr}

.section{padding-block:clamp(40px,6.5vw,86px)}
.section-head{display:flex;flex-wrap:wrap;align-items:baseline;gap:14px;margin-bottom:clamp(20px,3vw,34px)}
.section-title{
  font-size:clamp(26px,4.2vw,40px);font-weight:900;line-height:1.14;
  letter-spacing:-.02em;color:#F4EEE3;
}
.section-lead{max-width:38ch;font-size:16px;line-height:1.8;color:rgba(230,239,245,.72)}

.card{
  position:relative;
  padding:22px 22px 24px;
  border-radius:var(--radius);
  border:1px solid var(--line-cool);
  background:var(--ink-700);
  box-shadow:var(--shadow-card);
}
.card--glass{
  background:var(--glass);
  border-color:var(--glass-line);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
}
.card--paper{
  background:var(--paper);
  border-color:rgba(36,26,21,.14);
  color:var(--espresso);
  box-shadow:0 22px 40px -30px rgba(0,0,0,.7);
}
.card-idx{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.18em;
  text-transform:uppercase;color:var(--cyan);
}
.card-idx::before{content:"";width:14px;height:2px;border-radius:2px;background:var(--coral)}
.card--paper .card-idx{color:#1F6E68}
.card-title{margin-top:10px;font-size:21px;font-weight:800;line-height:1.32;letter-spacing:-.01em}
.card-body{margin-top:10px;font-size:15px;line-height:1.8;color:rgba(230,239,245,.74)}
.card--paper .card-body{color:rgba(36,26,21,.78)}

.stat{display:flex;flex-direction:column;gap:6px}
.stat-value{
  font-family:var(--font-mono);font-size:clamp(28px,4vw,40px);
  font-weight:600;line-height:1;color:#F4EEE3;
}
.stat-label{font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--steel)}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:999px;
  border:1px solid currentColor;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;
  color:var(--cyan);
}
.tag--coral{color:var(--coral)}
.tag--lime{color:var(--lime)}
.tag--amber{color:var(--amber)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:10px 18px;border-radius:999px;
  border:1px solid transparent;
  font-size:14px;font-weight:700;letter-spacing:.03em;
  text-decoration:none;cursor:pointer;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease);
}
.btn-coral{background:var(--coral);color:#24100A;box-shadow:0 12px 24px -16px rgba(255,106,69,.95)}
.btn-coral:hover{background:#FF8264;color:#24100A;transform:translateY(-1px)}
.btn-ghost{background:var(--glass);color:#F4EEE3;border-color:var(--line-cool)}
.btn-ghost:hover{background:rgba(52,226,212,.16);color:#fff}

.paper-zone{background:var(--paper);color:var(--espresso)}
.prose{max-width:38em;font-size:17px;line-height:1.85}
.prose p+p{margin-top:1.05em}
.prose h2{margin:1.6em 0 .6em;font-size:clamp(22px,3vw,28px);font-weight:800;line-height:1.3;letter-spacing:-.01em}
.prose h3{margin:1.4em 0 .5em;font-size:19px;font-weight:800;line-height:1.4}
.prose strong{font-weight:800}
.prose a{border-bottom:1px solid currentColor}

.table{width:100%;font-size:14px}
.table th{
  padding:10px 12px;text-align:left;
  font-size:11px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;
  color:var(--steel);border-bottom:1px solid var(--line-cool);
}
.table td{
  padding:12px;color:rgba(234,241,246,.86);
  border-bottom:1px solid rgba(140,153,168,.18);
}
.table tbody tr{transition:background .18s var(--ease)}
.table tbody tr:hover{background:var(--glass)}
.table .num{color:#F4EEE3}
.table--paper th{color:#5A4A40;border-color:rgba(36,26,21,.18)}
.table--paper td{color:var(--espresso);border-color:rgba(36,26,21,.12)}
.table--paper tbody tr:hover{background:rgba(36,26,21,.05)}

.figure{margin:0;display:flex;flex-direction:column;gap:10px}
.figure-media{
  position:relative;overflow:hidden;
  aspect-ratio:16/9;
  border-radius:var(--radius);
  border:1px solid var(--line-cool);
  background:linear-gradient(135deg,#0D2C46 0%,#06182B 55%,#0A2440 100%);
}
.figure-media::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.7;
  background:repeating-linear-gradient(45deg,rgba(52,226,212,.07) 0 2px,transparent 2px 22px);
}
.figure-media>img,.figure-media>picture>img{width:100%;height:100%;object-fit:cover}
.figure--wide .figure-media{aspect-ratio:21/9}
.figure--tall .figure-media{aspect-ratio:4/5}
.figure-cap{display:flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.06em;color:var(--steel)}
.figure-cap::before{content:"";width:12px;height:2px;border-radius:2px;background:var(--cyan)}

/* ---------- 06 动效与注入元素 ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

.scroll-meter{
  position:fixed;top:calc(var(--band-h) - 2px);left:var(--rail-w);right:0;
  height:2px;z-index:90;pointer-events:none;
  background:linear-gradient(90deg,var(--cyan),var(--lime));
  transform:scaleX(0);transform-origin:left center;
}
.to-top{
  position:fixed;right:20px;bottom:22px;z-index:85;
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 16px;border-radius:999px;
  border:1px solid var(--line-cool);
  background:rgba(6,24,43,.86);
  color:var(--text-bright);
  font-size:13px;font-weight:600;letter-spacing:.04em;
  cursor:pointer;
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .25s var(--ease),transform .25s var(--ease),visibility .25s linear;
}
.to-top[data-visible]{opacity:1;visibility:visible;transform:none}
.to-top:hover{border-color:var(--cyan);color:#fff}
.to-top-arrow{font-family:var(--font-mono);color:var(--cyan)}

/* ---------- 07 响应式 ---------- */
@media (min-width:760px){
  .grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (min-width:760px) and (max-width:1039px){
  .grid--3{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (min-width:1040px){
  .grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
  .foot-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:30px}
}
@media (min-width:700px){
  .foot-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (min-width:980px){
  .to-top{bottom:calc(var(--dim-h) + 20px)}
}

@media (max-width:979px){
  body{
    padding-left:0;
    padding-top:66px;
    padding-bottom:22px;
  }
  .site-header{inset:0 0 auto 0;height:auto}
  .brand-rail{
    position:relative;left:auto;top:auto;bottom:auto;
    width:100%;height:auto;
    flex-direction:row;flex-wrap:wrap;align-items:center;gap:12px;
    padding:14px 16px;
    background:rgba(6,24,43,.94);
    backdrop-filter:blur(16px) saturate(150%);
    -webkit-backdrop-filter:blur(16px) saturate(150%);
    border-right:0;border-bottom:1px solid var(--line-cool);
  }
  .brand-tagline{display:none}
  .brand-glyph{width:34px;height:34px;font-size:12px;border-radius:10px}
  .brand-name{font-size:17px}
  .nav-toggle{display:inline-flex;position:absolute;right:14px;top:15px}
  .rail-nav{display:none;flex-basis:100%;width:100%;margin-top:6px}
  .site-header[data-open="true"] .rail-nav{display:block}
  .rail-nav-list{gap:2px}
  .rail-link{padding:11px 10px}
  .rail-foot{display:none}
  .mast-panel{display:none;background:rgba(6,24,43,.98)}
  .site-header[data-open="true"] .mast-panel{display:block}

  .season-band{
    position:static;height:auto;flex-wrap:wrap;
    gap:12px;padding:16px;
    background:transparent;
    border-bottom:1px solid rgba(52,226,212,.16);
    backdrop-filter:none;
    -webkit-backdrop-filter:none;
  }
  .band-chips{flex-basis:100%;flex-wrap:wrap;overflow:visible}
  .band-tools{margin-left:0;width:100%;justify-content:space-between;flex-wrap:wrap}

  .dimension-band{
    position:static;min-height:0;
    flex-direction:column;align-items:flex-start;gap:10px;
    padding:16px 16px 22px;
    background:transparent;
    border-top:0;
    backdrop-filter:none;
    -webkit-backdrop-filter:none;
  }
  .dim-list{gap:8px 18px}
  .dim-note{margin-left:0;display:none}

  .scroll-meter{top:63px;left:0}
}

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