/* 乐鱼赛场 · 共享样式 /assets/site.css */

:root{
  --ink-900:#0A2540;
  --ink-800:#123E63;
  --ink-700:#24455F;
  --cyan:#3DF0D0;
  --indigo:#2B2A6B;
  --wine:#7B1E3B;
  --orange:#FF5A36;
  --snow:#F1F6FA;
  --gray:#C3D3DF;
  --amber:#FFC24B;
  --shadow-hard:8px 8px 0 rgba(3,12,22,.55);
  --font-sans:"Source Han Sans SC","Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"JetBrains Mono","SFMono-Regular",ui-monospace,Consolas,"Liberation Mono",monospace;
  --shell-max:1320px;
  --pad:clamp(16px,4vw,40px);
  --gap:clamp(16px,2.4vw,28px);
}

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

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

body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  color:var(--snow);
  background-color:var(--ink-900);
  background-image:
    repeating-linear-gradient(90deg,rgba(195,211,223,.05) 0 1px,transparent 1px 92px),
    repeating-linear-gradient(0deg,rgba(195,211,223,.035) 0 1px,transparent 1px 92px),
    repeating-linear-gradient(64deg,rgba(61,240,208,.03) 0 2px,transparent 2px 210px),
    radial-gradient(1100px 620px at 8% -12%,rgba(61,240,208,.13),transparent 62%),
    radial-gradient(900px 520px at 98% 6%,rgba(123,30,59,.22),transparent 60%),
    linear-gradient(180deg,#0A2540 0%,#123E63 48%,#0A2540 100%);
  background-attachment:fixed,fixed,fixed,fixed,fixed,fixed;
}

img,picture,svg,video{max-width:100%}
img{height:auto;display:block}

h1,h2,h3,h4,h5,h6,p,ul,ol,figure,blockquote,dl,dd{margin:0}
ul,ol{padding-left:0;list-style:none}

a{color:var(--cyan);text-decoration:none}
a:hover{text-decoration:underline;text-underline-offset:3px}

button{font:inherit;color:inherit;background:none;border:0;padding:0}

:focus-visible{outline:2px solid var(--cyan);outline-offset:2px}
::selection{background:var(--cyan);color:var(--ink-900)}

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

/* ---------- 布局骨架 ---------- */

.container{
  width:100%;
  max-width:var(--shell-max);
  margin-inline:auto;
  padding-inline:var(--pad);
}

.section{padding-block:clamp(56px,9vw,132px)}
.section--tight{padding-block:clamp(40px,6vw,88px)}

.grid{
  display:grid;
  grid-template-columns:repeat(12,minmax(0,1fr));
  gap:var(--gap);
}
.col-4{grid-column:span 4}
.col-5{grid-column:span 5}
.col-6{grid-column:span 6}
.col-7{grid-column:span 7}
.col-8{grid-column:span 8}
.col-12{grid-column:span 12}

.prose{max-width:70ch;font-size:17px;line-height:1.75}
.prose p+p{margin-top:1em}
.prose--narrow{max-width:56ch}

/* ---------- 页头 ---------- */

.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:rgba(10,37,64,.94);
  -webkit-backdrop-filter:blur(12px) saturate(140%);
  backdrop-filter:blur(12px) saturate(140%);
  border-bottom:2px solid var(--ink-700);
}

.scroll-progress{
  position:absolute;
  left:0;right:0;top:0;
  height:3px;
  background:var(--cyan);
  transform:scaleX(0);
  transform-origin:0 50%;
  pointer-events:none;
  z-index:5;
}

.skip-link{
  position:absolute;
  left:50%;top:0;
  transform:translate(-50%,-160%);
  z-index:200;
  display:inline-flex;
  align-items:center;
  min-height:44px;
  padding:0 20px;
  background:var(--cyan);
  color:var(--ink-900);
  font-size:14px;
  font-weight:700;
  letter-spacing:.08em;
  border:2px solid var(--ink-900);
}
.skip-link:focus{transform:translate(-50%,0);text-decoration:none}

.masthead{
  padding-block:18px 14px;
  border-bottom:1px solid rgba(195,211,223,.14);
}
.masthead__inner{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:20px;
}
.masthead__index{display:flex;flex-wrap:wrap;gap:8px}
.index-chip{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.16em;
  color:var(--gray);
  border:1px solid rgba(195,211,223,.34);
  padding:5px 9px;
  white-space:nowrap;
}
.masthead__brand{text-align:center}
.brand-link{
  display:inline-flex;
  align-items:baseline;
  gap:10px;
  color:var(--snow);
}
.brand-link:hover{text-decoration:none}
.brand-link__name{
  font-size:clamp(1.55rem,3.6vw,2.6rem);
  font-weight:900;
  line-height:.98;
  letter-spacing:-.04em;
}
.brand-link__latin{
  font-family:var(--font-mono);
  font-size:clamp(.68rem,1.3vw,.92rem);
  letter-spacing:.34em;
  color:var(--cyan);
}
.brand-link:hover .brand-link__name{color:var(--cyan)}
.masthead__tagline{
  margin-top:6px;
  font-size:12px;
  letter-spacing:.26em;
  color:var(--gray);
}
.masthead__account{
  display:flex;
  justify-content:flex-end;
  align-items:center;
  gap:12px;
}
.account-link{
  display:inline-flex;
  align-items:center;
  min-height:44px;
  padding:0 10px;
  font-size:13px;
  font-weight:700;
  letter-spacing:.06em;
  color:var(--gray);
  border-bottom:2px solid transparent;
}
.account-link:hover{color:var(--snow);text-decoration:none;border-bottom-color:var(--cyan)}
.account-link--key{
  color:var(--amber);
  border:1px solid rgba(255,194,75,.5);
}
.account-link--key:hover{
  color:var(--ink-900);
  background:var(--amber);
  border-color:var(--amber);
}

.navbar{position:relative}
.navbar__inner{display:flex;align-items:center;gap:12px}

.nav-toggle{
  display:none;
  align-items:center;
  gap:10px;
  min-height:48px;
  padding:0 14px;
  border:2px solid var(--ink-700);
  color:var(--snow);
  cursor:pointer;
}
.nav-toggle__bars{
  display:inline-block;
  width:18px;height:2px;
  background:var(--cyan);
  box-shadow:0 6px 0 var(--cyan),0 -6px 0 var(--cyan);
}
.nav-toggle__label{font-size:13px;font-weight:700;letter-spacing:.1em}
.nav-toggle[aria-expanded="true"]{
  background:var(--cyan);
  color:var(--ink-900);
  border-color:var(--cyan);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars{
  background:var(--ink-900);
  box-shadow:0 6px 0 var(--ink-900),0 -6px 0 var(--ink-900);
}

.site-nav{flex:1 1 auto;min-width:0}
.site-nav__list{
  display:flex;
  align-items:stretch;
  gap:2px;
  overflow-x:auto;
  -webkit-overflow-scrolling:touch;
  scroll-snap-type:x proximity;
  counter-reset:nav;
}
.site-nav__list::-webkit-scrollbar{height:4px}
.site-nav__list::-webkit-scrollbar-thumb{background:var(--ink-700)}
.site-nav__list li{counter-increment:nav;flex:0 0 auto;scroll-snap-align:start}
.site-nav__link{
  display:inline-flex;
  align-items:center;
  min-height:48px;
  padding:0 16px;
  font-size:14px;
  font-weight:700;
  letter-spacing:.04em;
  color:var(--gray);
  white-space:nowrap;
  border-bottom:3px solid transparent;
}
.site-nav__link::before{
  content:counter(nav,decimal-leading-zero);
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.1em;
  opacity:.6;
  margin-right:8px;
}
.site-nav__link:hover{
  color:var(--snow);
  background:rgba(61,240,208,.09);
  text-decoration:none;
}
.site-nav__link[aria-current="page"]{
  background:var(--cyan);
  color:var(--ink-900);
  border-bottom-color:var(--ink-900);
}
.site-nav__link[aria-current="page"]::before{opacity:.85}

/* ---------- 页脚 ---------- */

.site-footer{
  position:relative;
  z-index:1;
  margin-top:clamp(64px,10vw,140px);
  padding-block:clamp(40px,6vw,72px) 28px;
  border-top:2px solid var(--ink-700);
  background:linear-gradient(180deg,rgba(36,69,95,.5),rgba(10,37,64,.96));
}
.footer-main{
  display:grid;
  grid-template-columns:1.25fr 1fr 1.15fr;
  gap:clamp(24px,4vw,56px);
  padding-bottom:32px;
  border-bottom:1px solid var(--ink-700);
}
.footer-brand__name{
  font-size:20px;
  font-weight:900;
  letter-spacing:-.02em;
}
.footer-brand__latin{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.3em;
  color:var(--cyan);
  margin-left:10px;
}
.footer-brand__note{
  margin-top:12px;
  max-width:36ch;
  font-size:14px;
  color:var(--gray);
}
.footer-nav__title,
.footer-contact__title{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.24em;
  color:var(--cyan);
  margin-bottom:14px;
}
.footer-nav__list{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:8px 20px;
}
.footer-nav__list a{
  font-size:14px;
  color:var(--gray);
}
.footer-nav__list a:hover{color:var(--snow)}
.footer-contact__list li{
  display:flex;
  align-items:baseline;
  gap:10px;
  margin-bottom:8px;
  font-size:14px;
  color:var(--gray);
}
.footer-contact__key{
  flex:0 0 42px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.12em;
  color:rgba(195,211,223,.6);
}
.footer-contact__value{word-break:break-word}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:10px 24px;
  padding-top:20px;
  font-size:12px;
  letter-spacing:.08em;
  color:rgba(195,211,223,.72);
}
.footer-bottom__icp{font-family:var(--font-mono)}

.to-top{
  position:fixed;
  right:clamp(12px,3vw,28px);
  bottom:clamp(12px,3vw,28px);
  z-index:90;
  width:48px;height:48px;
  display:grid;
  place-items:center;
  font-size:18px;
  line-height:1;
  color:var(--cyan);
  background:var(--ink-800);
  border:2px solid var(--cyan);
  cursor:pointer;
  opacity:0;
  transform:translateY(16px);
  pointer-events:none;
  transition:opacity .2s ease,transform .2s ease,background-color .16s ease;
}
.to-top.is-active{opacity:1;transform:none;pointer-events:auto}
.to-top:hover{background:var(--cyan);color:var(--ink-900)}

/* ---------- 通用组件 ---------- */

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:48px;
  padding:0 22px;
  font-size:14px;
  font-weight:700;
  letter-spacing:.06em;
  border:2px solid transparent;
  cursor:pointer;
  transition:transform .16s ease,box-shadow .16s ease,background-color .16s ease,color .16s ease;
}
.btn:hover{text-decoration:none;transform:translate(-2px,-2px)}
.btn--primary{
  background:var(--orange);
  color:#2A0A02;
  border-color:var(--orange);
  box-shadow:6px 6px 0 rgba(3,12,22,.6);
}
.btn--primary:hover{box-shadow:9px 9px 0 rgba(3,12,22,.6)}
.btn--outline{
  background:transparent;
  color:var(--cyan);
  border-color:var(--cyan);
  box-shadow:6px 6px 0 rgba(3,12,22,.45);
}
.btn--outline:hover{background:var(--cyan);color:var(--ink-900)}
.btn--quiet{
  background:transparent;
  color:var(--snow);
  border-color:var(--ink-700);
}
.btn--quiet:hover{border-color:var(--snow)}

.breadcrumb{padding-top:clamp(20px,3vw,34px)}
.breadcrumb ol{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.16em;
  color:var(--gray);
}
.breadcrumb li{display:inline-flex;align-items:center;gap:10px}
.breadcrumb li+li::before{content:"/";color:rgba(195,211,223,.42)}
.breadcrumb a{color:var(--gray)}
.breadcrumb a:hover{color:var(--cyan);text-decoration:none}
.breadcrumb [aria-current="page"]{color:var(--snow)}

.section-head{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  gap:12px 20px;
  margin-bottom:clamp(20px,3vw,36px);
}
.section-title{
  font-size:clamp(1.6rem,3.4vw,2.6rem);
  font-weight:900;
  line-height:1.05;
  letter-spacing:-.03em;
}
.coord{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.22em;
  color:var(--gray);
  border:1px solid rgba(195,211,223,.34);
  padding:5px 9px;
  white-space:nowrap;
}

.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:3px 10px;
  font-size:14px;
  font-weight:700;
  line-height:1.5;
  letter-spacing:.04em;
  color:var(--ink-900);
  background:var(--cyan);
}
.tag--amber{background:var(--amber)}
.tag--wine{background:var(--wine);color:var(--snow)}
.tag--indigo{background:var(--indigo);color:var(--snow)}
.tag--orange{background:var(--orange);color:#2A0A02}

.mono,.data{font-family:var(--font-mono);font-variant-numeric:tabular-nums}
.data{font-weight:500;letter-spacing:-.01em}
.index-label{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.22em;
  color:var(--gray);
}

.panel{
  border:2px solid var(--ink-700);
  padding:clamp(18px,3vw,32px);
  box-shadow:var(--shadow-hard);
}
.panel--ice{background:var(--ink-800);border-color:var(--ink-700)}
.panel--indigo{background:var(--indigo);border-color:#4342A0}
.panel--wine{background:var(--wine);border-color:#A83058}

.media-frame{
  position:relative;
  display:block;
  overflow:hidden;
  border:2px solid var(--ink-700);
  background:linear-gradient(135deg,var(--ink-800) 0%,var(--ink-700) 55%,var(--ink-800) 100%);
  box-shadow:10px 10px 0 rgba(3,12,22,.55);
}
.media-frame img{width:100%;height:100%;object-fit:cover}
.media-frame::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background:repeating-linear-gradient(58deg,rgba(61,240,208,.07) 0 1px,transparent 1px 14px);
}
.media-frame--21x9{aspect-ratio:21/9}
.media-frame--16x9{aspect-ratio:16/9}
.media-frame--4x3{aspect-ratio:4/3}
.media-frame--1x1{aspect-ratio:1/1}
.media-frame__caption{
  margin-top:10px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.14em;
  color:var(--gray);
}

/* ---------- 分段切换（标签页） ---------- */

[data-tabs] [role="tablist"]{
  display:flex;
  flex-wrap:wrap;
  gap:2px;
  border-bottom:2px solid var(--ink-700);
}
[data-tabs] [role="tab"]{
  display:inline-flex;
  align-items:center;
  min-height:44px;
  padding:0 16px;
  font-size:14px;
  font-weight:700;
  letter-spacing:.04em;
  color:var(--gray);
  border-bottom:3px solid transparent;
  cursor:pointer;
  transition:background-color .18s ease,color .18s ease;
}
[data-tabs] [role="tab"]:hover{background:rgba(61,240,208,.1);color:var(--snow)}
[data-tabs] [role="tab"][aria-selected="true"]{
  background:var(--cyan);
  color:var(--ink-900);
}
[data-tabs] [role="tabpanel"]{padding-top:clamp(18px,3vw,28px)}
[data-tabs] [role="tabpanel"][hidden]{display:none}

/* ---------- 动效 ---------- */

[data-reveal][data-reveal-init]{
  opacity:0;
  transform:translateY(12px);
  transition:opacity .24s ease,transform .24s ease;
}
[data-reveal][data-reveal-init].is-visible{
  opacity:1;
  transform:none;
}

/* ---------- 响应式 ---------- */

@media (max-width:1100px){
  .masthead__inner{grid-template-columns:1fr auto;gap:14px}
  .masthead__index{display:none}
  .masthead__brand{text-align:left}
  .footer-main{grid-template-columns:1fr 1fr}
  .footer-contact{grid-column:span 2}
}

@media (max-width:900px){
  .grid{grid-template-columns:repeat(6,minmax(0,1fr))}
  .col-4,.col-5,.col-6,.col-7,.col-8{grid-column:span 6}

  .masthead{padding-block:14px 12px}
  .masthead__inner{grid-template-columns:1fr auto;gap:10px}
  .masthead__brand{justify-self:start}
  .brand-link{gap:7px}
  .brand-link__name{font-size:clamp(1.3rem,6.2vw,1.85rem)}
  .brand-link__latin{font-size:.66rem;letter-spacing:.2em}
  .masthead__tagline{margin-top:4px;font-size:11px;letter-spacing:.16em}
  .masthead__account{gap:6px}
  .account-link{min-height:40px;padding:0 7px;font-size:11px;letter-spacing:.02em}

  .navbar__inner{padding-block:8px}
  .nav-toggle{display:inline-flex}
  .site-nav{display:none;flex:1 1 100%}
  .site-nav[data-open]{
    display:block;
    border-top:2px solid var(--ink-700);
    margin-top:8px;
    padding-top:6px;
  }
  .site-nav__list{flex-direction:column;gap:0;overflow:visible}
  .site-nav__link{
    display:flex;
    width:100%;
    padding:0 4px;
    border-bottom:1px solid var(--ink-700);
  }
  .site-nav__link:hover{background:rgba(61,240,208,.12)}
  .site-nav__link[aria-current="page"]{border-bottom-color:var(--cyan)}

  .footer-main{grid-template-columns:1fr;gap:30px}
  .footer-contact{grid-column:auto}
  .footer-nav__list{grid-template-columns:repeat(2,minmax(0,1fr))}
}

@media (max-width:520px){
  body{font-size:15px}
  .prose{font-size:16px}
  .masthead__account .account-link{font-size:10px;padding:0 5px}
  .footer-nav__list{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .btn{width:100%}
}

@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][data-reveal-init]{opacity:1;transform:none}
  .to-top{transition:none}
}