/* ============================================================
   /assets/site.css · 乐鱼赛事 共享外壳
   01 重置 / 02 变量 / 03 中文排版 / 04 容器与网格
   05 头部 / 06 页脚 / 07 按钮与基础组件 / 08 图片容器
   09 动效与响应式
   ============================================================ */

/* ---------- 01 · 重置 ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,h5,h6,p,ul,ol,li,figure,figcaption,blockquote,dl,dd{margin:0;padding:0}
ul,ol{list-style:none}
img,svg,video{max-width:100%}
button{font:inherit;color:inherit;background:none;border:0}
a{color:var(--cyan);text-decoration:none}
a:hover{color:var(--cyan)}

/* ---------- 02 · 变量 ---------- */
:root{
  --ink:#061A2B;
  --ink-deep:#04121F;
  --harbor:#0B2F4A;
  --indigo:#2B2A6E;
  --wine:#6E1F3C;
  --field:#0E4B4A;
  --cyan:#45F2DF;
  --coral:#FF6B4A;
  --paper:#EAF4F8;
  --slate:#8FA9B8;
  --line:rgba(69,242,223,.16);
  --line-soft:rgba(143,169,184,.2);
  --line-strong:rgba(69,242,223,.42);
  --font-display:"Barlow Condensed","Oswald","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-body:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"IBM Plex Mono","JetBrains Mono",SFMono-Regular,Consolas,"Courier New",monospace;
  --shell:1240px;
  --gutter:clamp(18px,4.2vw,40px);
  --header-h:78px;
  --gap:clamp(16px,2.4vw,28px);
  --cut:16px;
  --ease:cubic-bezier(.2,.7,.3,1);
}

/* ---------- 03 · 中文排版 ---------- */
body{
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  color:var(--paper);
  background-color:var(--ink);
  background-image:
    radial-gradient(1100px 620px at 84% -12%,rgba(69,242,223,.12),transparent 62%),
    radial-gradient(900px 560px at 4% 108%,rgba(43,42,110,.62),transparent 60%),
    linear-gradient(180deg,#061A2B 0%,#04121F 74%);
  background-repeat:no-repeat;
  min-height:100vh;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4{font-family:var(--font-display);font-weight:800;line-height:1.14;letter-spacing:.01em;color:var(--paper)}
h1{font-size:clamp(32px,5.2vw,52px)}
h2{font-size:clamp(26px,3.6vw,38px)}
h3{font-size:clamp(19px,2.2vw,24px)}
h4{font-size:17px;font-weight:700}
p{overflow-wrap:break-word}
strong{font-weight:700;color:var(--paper)}
::selection{background:var(--cyan);color:var(--ink)}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:.06em}
.eyebrow{display:inline-block;font-family:var(--font-mono);font-size:11px;font-weight:500;letter-spacing:.22em;text-transform:uppercase;color:var(--cyan)}
.site-main{display:block;min-height:58vh}
#main-content{scroll-margin-top:calc(var(--header-h) + 16px)}

/* ---------- 04 · 容器与网格 ---------- */
.shell{width:100%;max-width:var(--shell);margin-inline:auto;padding-inline:var(--gutter)}
.flow>*+*{margin-top:1rem}
.grid{display:grid;gap:var(--gap)}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-7-5{grid-template-columns:minmax(0,7fr) minmax(0,5fr)}
.grid-5-7{grid-template-columns:minmax(0,5fr) minmax(0,7fr)}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:.8rem 1.4rem;margin-bottom:clamp(18px,3vw,30px);padding-bottom:.85rem;border-bottom:1px solid var(--line)}
.section-title{font-family:var(--font-display);font-weight:800;font-size:clamp(24px,3.4vw,36px);line-height:1.1}

/* ---------- 05 · 头部 ---------- */
.skip-link{
  position:absolute;left:14px;top:10px;z-index:300;
  padding:.62rem 1.05rem;border-radius:2px;
  background:var(--coral);color:var(--ink);font-weight:700;font-size:14px;
  text-decoration:none;
  transform:translateY(-180%);
  transition:transform .18s var(--ease);
}
.skip-link:focus,.skip-link:focus-visible{transform:translateY(0);color:var(--ink)}

.site-header{
  position:sticky;top:0;z-index:80;
  background:linear-gradient(180deg,rgba(6,26,43,.99),rgba(6,26,43,.92));
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(8px);
  transition:box-shadow .22s var(--ease);
}
.site-header[data-stuck]{--header-h:60px;box-shadow:0 14px 34px rgba(0,0,0,.42)}
.site-header[data-stuck] .brand-tag{display:none}

.header-progress{position:absolute;left:0;right:0;bottom:-1px;height:2px;background:rgba(69,242,223,.1);pointer-events:none}
.header-progress-bar{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--cyan),var(--coral));transition:width .12s linear}

.header-shell{display:flex;align-items:center;gap:clamp(10px,2vw,26px);min-height:var(--header-h);transition:min-height .22s var(--ease)}

.brand{display:inline-flex;align-items:center;gap:.62rem;padding-block:.35rem;color:var(--paper);text-decoration:none;flex:none}
.brand:hover{color:var(--paper)}
.brand-signal{width:10px;height:10px;flex:none;background:var(--cyan);transform:rotate(45deg);box-shadow:0 0 0 4px rgba(69,242,223,.14)}
.brand-text{display:flex;flex-direction:column;line-height:1.05}
.brand-name{font-family:var(--font-display);font-weight:800;font-size:22px;letter-spacing:.07em}
.brand-tag{font-size:10.5px;letter-spacing:.18em;color:var(--slate);margin-top:.2rem}

.header-panel{display:flex;align-items:center;gap:clamp(10px,1.7vw,24px);margin-inline-start:auto}
.site-nav{display:block}
.nav-list{display:flex;align-items:center;gap:2px}
.nav-link{
  position:relative;display:inline-flex;align-items:baseline;gap:.38rem;
  padding:.55rem .66rem;border-radius:2px;
  font-size:15px;font-weight:500;letter-spacing:.02em;color:var(--slate);
  text-decoration:none;white-space:nowrap;
  transition:color .18s var(--ease),background-color .18s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:.66rem;right:.66rem;bottom:.14rem;height:2px;
  background:var(--line-strong);transform:scaleX(0);transform-origin:left;
  transition:transform .22s var(--ease),background-color .22s var(--ease);
}
.nav-link:hover{color:var(--paper);background:rgba(69,242,223,.05)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link[aria-current="page"]{color:var(--paper)}
.nav-link[aria-current="page"]::after{transform:scaleX(1);background:var(--cyan)}
.nav-idx{font-size:10px;letter-spacing:.06em;color:var(--cyan);opacity:.72}
.nav-link[aria-current="page"] .nav-idx{opacity:1}

.header-actions{display:flex;align-items:center;gap:.5rem}
.header-status{display:inline-flex;align-items:center;gap:.45rem;flex:none;padding-left:.95rem;border-left:1px solid var(--line);font-size:10.5px;letter-spacing:.16em;color:var(--slate)}
.status-dot{width:7px;height:7px;flex:none;border-radius:50%;background:var(--cyan);box-shadow:0 0 0 4px rgba(69,242,223,.14);animation:statusPulse 2.8s ease-in-out infinite}
@keyframes statusPulse{50%{box-shadow:0 0 0 7px rgba(69,242,223,0)}}

.nav-toggle{
  display:none;align-items:center;gap:.55rem;order:2;margin-inline-start:auto;
  padding:.52rem .72rem;border:1px solid var(--line-strong);border-radius:2px;
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.14em;color:var(--paper);
  cursor:pointer;transition:border-color .18s var(--ease),background-color .18s var(--ease);
}
.nav-toggle:hover{border-color:var(--cyan);background:rgba(69,242,223,.08)}
.nav-toggle-bars{position:relative;display:block;width:16px;height:10px}
.nav-toggle-bars::before,.nav-toggle-bars::after{content:"";position:absolute;left:0;right:0;height:2px;background:var(--cyan);transition:transform .2s var(--ease),top .2s var(--ease),bottom .2s var(--ease)}
.nav-toggle-bars::before{top:0}
.nav-toggle-bars::after{bottom:0}
.site-header[data-open] .nav-toggle-bars::before{top:4px;transform:rotate(45deg)}
.site-header[data-open] .nav-toggle-bars::after{bottom:4px;transform:rotate(-45deg)}
.nav-toggle-label{line-height:1}

/* ---------- 06 · 页脚 ---------- */
.site-footer{
  position:relative;margin-top:clamp(56px,9vw,104px);
  background:linear-gradient(180deg,#061A2B 0%,#04121F 62%,#051622 100%);
  border-top:1px solid var(--line);
  overflow:hidden;
}
.site-footer::before{
  content:"";position:absolute;inset:0 0 auto;height:3px;
  background:linear-gradient(90deg,var(--cyan) 0%,rgba(69,242,223,0) 46%,rgba(255,107,74,.92) 100%);
}
.site-footer::after{
  content:"";position:absolute;inset:auto -10% -40% auto;width:62vw;height:62vw;max-width:760px;max-height:760px;
  background:repeating-linear-gradient(122deg,rgba(69,242,223,.06) 0 1px,transparent 1px 22px);
  pointer-events:none;
}
.footer-mark{
  position:absolute;right:-1%;bottom:-4%;z-index:0;
  font-family:var(--font-display);font-weight:800;font-size:clamp(96px,17vw,230px);line-height:.8;
  letter-spacing:.02em;color:rgba(69,242,223,.05);
  -webkit-text-stroke:1px rgba(69,242,223,.12);
  pointer-events:none;user-select:none;
}
.footer-shell{position:relative;z-index:1;padding-block:clamp(38px,6vw,68px) clamp(18px,3vw,26px)}

.footer-top{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1.75fr);gap:clamp(26px,5vw,62px)}
.footer-brand-line{font-family:var(--font-display);font-weight:800;font-size:clamp(21px,2.8vw,29px);line-height:1.18;letter-spacing:.04em;color:var(--paper)}
.footer-desc{margin-top:.7rem;max-width:34ch;font-size:15px;line-height:1.7;color:var(--slate)}
.footer-stamp{margin-top:1.1rem;font-size:11px;letter-spacing:.16em;color:rgba(69,242,223,.7)}

.footer-groups{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(18px,3vw,34px)}
.footer-group-title{
  font-family:var(--font-mono);font-size:11px;font-weight:500;letter-spacing:.18em;text-transform:uppercase;
  color:var(--cyan);padding-bottom:.55rem;margin-bottom:.8rem;border-bottom:1px solid var(--line);
}
.footer-list{display:grid;gap:.5rem}
.footer-link{
  display:inline-block;font-size:15px;color:rgba(234,244,248,.84);text-decoration:none;
  transition:color .18s var(--ease),transform .18s var(--ease);
}
.footer-link:hover{color:var(--cyan);transform:translateX(3px)}

.footer-contact{
  margin-top:clamp(28px,4.6vw,52px);
  padding:clamp(20px,2.8vw,30px);
  display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:clamp(16px,2.4vw,28px);
  background:linear-gradient(135deg,rgba(43,42,110,.55),rgba(11,47,74,.62));
  border:1px solid rgba(69,242,223,.22);
  clip-path:polygon(0 0,calc(100% - var(--cut)) 0,100% var(--cut),100% 100%,var(--cut) 100%,0 calc(100% - var(--cut)));
}
.contact-item{min-width:0}
.contact-label{font-family:var(--font-mono);font-size:10.5px;letter-spacing:.18em;text-transform:uppercase;color:var(--slate)}
.contact-value{margin-top:.35rem;font-size:15px;line-height:1.6;color:var(--paper);overflow-wrap:break-word}
.contact-note{grid-column:1/-1;padding-top:.85rem;border-top:1px dashed rgba(143,169,184,.34);font-size:13px;line-height:1.7;color:var(--slate)}

.footer-bar{
  margin-top:clamp(22px,3.4vw,38px);padding-block:1.15rem 0;
  border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:.7rem 1.6rem;
}
.footer-legal{display:flex;flex-wrap:wrap;gap:.35rem 1.15rem}
.footer-legal .footer-link{font-size:13.5px;color:rgba(234,244,248,.72)}
.footer-legal .footer-link:hover{color:var(--cyan)}
.footer-meta{display:flex;flex-wrap:wrap;align-items:center;gap:.3rem 1.2rem;font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;color:var(--slate)}
.footer-icp{color:rgba(143,169,184,.92)}

/* ---------- 07 · 按钮与基础组件 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.45rem;
  padding:.78rem 1.15rem;border:1px solid transparent;border-radius:2px;
  font-family:var(--font-body);font-size:15px;font-weight:600;line-height:1;letter-spacing:.02em;
  text-decoration:none;white-space:nowrap;cursor:pointer;
  transition:background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease);
}
.btn--primary{background:var(--coral);color:var(--ink);box-shadow:0 8px 22px rgba(255,107,74,.26)}
.btn--primary:hover{background:#FF8367;color:var(--ink);transform:translateY(-1px)}
.btn--outline{background:rgba(69,242,223,.06);border-color:var(--line-strong);color:var(--paper)}
.btn--outline:hover{background:rgba(69,242,223,.15);border-color:var(--cyan);color:var(--cyan)}

.crumbs{padding-block:.9rem;border-bottom:1px solid var(--line);margin-bottom:clamp(20px,3vw,34px)}
.crumbs-list{display:flex;flex-wrap:wrap;align-items:center;gap:.35rem;font-family:var(--font-mono);font-size:11.5px;letter-spacing:.08em;color:var(--slate)}
.crumbs-list li+li::before{content:"/";margin-right:.35rem;color:rgba(143,169,184,.5)}
.crumbs-list a{color:var(--slate);text-decoration:none}
.crumbs-list a:hover{color:var(--cyan)}
.crumbs-list [aria-current="page"]{color:var(--paper)}

.panel{
  position:relative;padding:clamp(18px,2.4vw,28px);
  background:linear-gradient(180deg,rgba(11,47,74,.92),rgba(6,26,43,.95));
  border:1px solid var(--line);
  clip-path:polygon(0 0,calc(100% - var(--cut)) 0,100% var(--cut),100% 100%,var(--cut) 100%,0 calc(100% - var(--cut)));
}

.tag{
  display:inline-flex;align-items:center;gap:.35rem;
  padding:.28rem .58rem;border:1px solid var(--line-strong);border-radius:2px;
  background:rgba(69,242,223,.07);color:var(--cyan);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;line-height:1.5;
}
.tag--live{border-color:rgba(255,107,74,.62);background:rgba(255,107,74,.14);color:#FFB8A6}
.tag--wine{border-color:rgba(110,31,60,.85);background:rgba(110,31,60,.42);color:#F4D6E1}

.prose{max-width:72ch;color:rgba(234,244,248,.9)}
.prose p{font-size:16.5px;line-height:1.82}
.prose p+p{margin-top:1.05em}
.prose h2,.prose h3{margin-top:1.9em;margin-bottom:.6em;color:var(--paper)}
.prose ul,.prose ol{display:grid;gap:.5rem;margin-top:1em}
.prose li{position:relative;padding-left:1.25rem;font-size:16px;line-height:1.78}
.prose li::before{content:"";position:absolute;left:0;top:.78em;width:9px;height:1px;background:var(--cyan)}
.prose a{color:var(--cyan);text-decoration:underline;text-underline-offset:3px}

/* ---------- 08 · 图片容器基础规则 ---------- */
.media{
  position:relative;overflow:hidden;width:100%;aspect-ratio:16/9;
  border:1px solid var(--line);
  background:
    radial-gradient(120% 120% at 14% 0%,rgba(69,242,223,.18),transparent 58%),
    linear-gradient(158deg,var(--harbor),var(--ink-deep));
  clip-path:polygon(0 0,calc(100% - var(--cut)) 0,100% var(--cut),100% 100%,var(--cut) 100%,0 calc(100% - var(--cut)));
}
.media--wide{aspect-ratio:21/9}
.media--square{aspect-ratio:1/1}
.media img,.media svg,.media video{display:block;width:100%;height:100%;object-fit:cover}
.media::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:48%;
  background:linear-gradient(180deg,transparent,rgba(4,18,31,.84));
  pointer-events:none;
}
.media-caption{margin-top:.55rem;font-family:var(--font-mono);font-size:11.5px;letter-spacing:.08em;line-height:1.6;color:var(--slate)}

/* ---------- 09 · 动效与响应式 ---------- */
[data-reveal]{opacity:0;transform:translateY(16px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
[data-reveal].is-in{opacity:1;transform:none}
[data-disclose-panel][hidden]{display:none}

@media (max-width:1180px){
  .brand-tag{display:none}
  .nav-link{font-size:14px;padding-inline:.52rem}
  .nav-link::after{left:.52rem;right:.52rem}
  .header-status{display:none}
}

@media (max-width:980px){
  :root{--header-h:64px}
  .header-shell{min-height:var(--header-h)}
  .nav-toggle{display:inline-flex}
  .header-panel{
    position:absolute;top:100%;left:0;right:0;z-index:90;
    display:none;flex-direction:column;align-items:stretch;gap:0;
    padding:.4rem var(--gutter) 1.15rem;
    background:linear-gradient(180deg,#0B2F4A,#061A2B);
    border-top:1px solid var(--line-strong);
    border-bottom:1px solid var(--line);
    box-shadow:0 26px 44px rgba(0,0,0,.5);
    max-height:calc(100vh - var(--header-h));
    overflow-y:auto;
  }
  .site-header[data-open] .header-panel{display:flex}
  .site-nav{width:100%}
  .nav-list{flex-direction:column;align-items:stretch;gap:0}
  .nav-link{width:100%;padding:.85rem .15rem;border-bottom:1px solid rgba(143,169,184,.16);font-size:16px;border-radius:0}
  .nav-link::after{left:0;right:auto;width:30px;bottom:0}
  .nav-link:hover{background:transparent}
  .header-actions{flex-direction:column;gap:.55rem;padding-top:1rem}
  .header-actions .btn{width:100%}
  .footer-top{grid-template-columns:minmax(0,1fr)}
  .footer-groups{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
  .footer-mark{font-size:clamp(80px,26vw,150px);opacity:.8}
}

@media (max-width:900px){
  .grid-2,.grid-3,.grid-7-5,.grid-5-7{grid-template-columns:minmax(0,1fr)}
}

@media (max-width:620px){
  .header-shell{gap:10px}
  .brand-name{font-size:19px}
  .footer-groups{grid-template-columns:minmax(0,1fr)}
  .footer-contact{grid-template-columns:minmax(0,1fr)}
  .footer-bar{flex-direction:column;align-items:flex-start}
  .btn{padding:.72rem 1rem;font-size:14.5px}
}

@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}
  .status-dot{animation:none}
}