/* 四喜体育入口 · 共享样式 /assets/site.css */

:root{
  --ink:#06110E;
  --ink-2:#0B1F19;
  --panel:#12332A;
  --line:#1E4A3C;
  --cyan:#37F5C1;
  --teal:#0E8F76;
  --coral:#FF6B4A;
  --silver:#C9D6D2;
  --paper:#F2F7F5;
  --muted:#7C8F89;
  --mint:#A8FFE4;
  --wrap:1180px;
  --pad:clamp(16px,4vw,40px);
  --gap:20px;
  --r:2px;
  --ease:cubic-bezier(.2,.7,.3,1);
  --font-head:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --font-body:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --font-num:"Barlow Condensed","DIN Condensed","Arial Narrow","Noto Sans SC",system-ui,sans-serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  min-height:100vh;
  background-color:var(--ink);
  background-image:
    linear-gradient(to right,rgba(30,74,60,.36) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(30,74,60,.36) 1px,transparent 1px);
  background-size:72px 72px;
  background-attachment:fixed;
  color:var(--silver);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  overflow-x:hidden;
}
img,svg,video{display:block;max-width:100%}
button{font:inherit}
h1,h2,h3,h4{margin:0;font-family:var(--font-head);font-weight:800;color:var(--paper);letter-spacing:-.02em;line-height:1.15}
h1{font-size:clamp(40px,5vw,56px);font-weight:900}
h2{font-size:clamp(28px,3.2vw,32px)}
h3{font-size:20px;font-weight:800}
p{margin:0}
a{color:var(--cyan)}
::selection{background:var(--cyan);color:var(--ink)}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:var(--r)}

/* ---------- 跳过链接 ---------- */
.skip-link{
  position:fixed;left:14px;top:14px;z-index:200;
  transform:translateY(-180%);
  padding:10px 16px;
  background:var(--cyan);color:var(--ink);
  font-family:var(--font-mono);font-size:13px;font-weight:700;letter-spacing:.06em;
  border-radius:var(--r);text-decoration:none;
  transition:transform .18s var(--ease);
}
.skip-link:focus{transform:translateY(0)}

/* ---------- 头部 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  padding:14px var(--pad) 10px;
  background:linear-gradient(to bottom,rgba(6,17,14,.96),rgba(6,17,14,.55) 72%,rgba(6,17,14,0));
  transition:padding .22s var(--ease);
}
.site-header[data-condensed]{padding-top:6px;padding-bottom:6px}
.header-inner{
  position:relative;
  max-width:var(--wrap);margin:0 auto;
  display:flex;align-items:center;gap:10px;
}
.header-brand{
  display:inline-flex;align-items:center;gap:10px;flex:none;
  padding:8px 16px 8px 12px;
  border:1px solid var(--line);border-radius:999px;
  background:rgba(11,31,25,.9);
  text-decoration:none;
  transition:border-color .15s var(--ease),background .15s var(--ease);
}
.header-brand:hover{border-color:var(--cyan);background:rgba(18,51,42,.95)}
.brand-mark{
  position:relative;flex:none;width:22px;height:22px;
  border:1px solid var(--cyan);
  background:
    linear-gradient(var(--cyan),var(--cyan)) center/1px 100% no-repeat,
    linear-gradient(var(--cyan),var(--cyan)) center/100% 1px no-repeat;
}
.brand-mark::after{content:"";position:absolute;right:-3px;top:-3px;width:6px;height:6px;background:var(--coral)}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-family:var(--font-head);font-weight:900;font-size:16px;letter-spacing:-.01em;color:var(--paper);white-space:nowrap}
.brand-tag{font-family:var(--font-mono);font-size:12px;letter-spacing:.16em;color:var(--muted);white-space:nowrap}
.round-chip{
  display:inline-flex;align-items:center;gap:8px;flex:none;
  padding:7px 12px;
  border:1px dashed var(--line);border-radius:999px;
  background:rgba(6,17,14,.62);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;color:var(--muted);
  white-space:nowrap;
}
.round-chip__dot{width:6px;height:6px;border-radius:50%;background:var(--coral);box-shadow:0 0 0 3px rgba(255,107,74,.18)}
.round-chip__text{display:inline-flex;align-items:baseline;gap:4px}
.round-chip b{font-family:var(--font-num);font-weight:700;font-size:16px;letter-spacing:0;color:var(--paper)}
.site-nav{
  margin-left:auto;
  display:flex;align-items:center;
  padding:4px;
  border:1px solid var(--line);border-radius:999px;
  background:rgba(11,31,25,.86);
  transition:border-color .15s var(--ease);
}
.site-nav:hover{border-color:rgba(55,245,193,.42)}
.nav-list{display:flex;align-items:center;gap:2px;margin:0;padding:0;list-style:none}
.nav-item{display:block}
.nav-link{
  position:relative;display:inline-block;
  padding:9px 13px;border-radius:999px;
  color:var(--silver);text-decoration:none;
  font-size:16px;line-height:1;white-space:nowrap;
  transition:color .15s var(--ease),background .15s var(--ease);
}
.nav-link:hover{color:var(--paper);background:rgba(55,245,193,.1)}
.nav-link[aria-current="page"]{color:var(--cyan)}
.nav-link[aria-current="page"]::after{
  content:"";position:absolute;left:13px;right:13px;bottom:3px;height:2px;background:var(--cyan);
}
.nav-foot{display:none}
.header-actions{display:flex;align-items:center;gap:8px;flex:none}
.nav-toggle{
  display:none;align-items:center;gap:8px;flex:none;
  margin-left:auto;min-height:40px;padding:0 16px;
  border:1px solid var(--line);border-radius:999px;
  background:rgba(11,31,25,.9);color:var(--paper);
  font-family:var(--font-mono);font-size:13px;letter-spacing:.1em;
  cursor:pointer;
  transition:border-color .15s var(--ease),color .15s var(--ease);
}
.nav-toggle:hover{border-color:var(--cyan);color:var(--cyan)}
.nav-toggle__bars{position:relative;display:block;flex:none;width:16px;height:10px;color:currentColor}
.nav-toggle__bars::before,
.nav-toggle__bars::after{
  content:"";position:absolute;left:0;right:0;height:1.5px;background:currentColor;
  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}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before{top:4px;transform:rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after{bottom:4.5px;transform:rotate(-45deg)}
.nav-toggle__label{line-height:1}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;
  border:1px solid var(--line);border-radius:var(--r);
  background:transparent;color:var(--paper);
  font-family:var(--font-body);font-size:16px;font-weight:700;
  text-decoration:none;cursor:pointer;text-align:center;
  transition:background .15s var(--ease),color .15s var(--ease),border-color .15s var(--ease),transform .15s var(--ease);
}
.btn:active{transform:translateY(1px)}
.btn--sm{min-height:36px;padding:0 14px;font-family:var(--font-mono);font-size:13px;font-weight:700;letter-spacing:.06em}
.btn--outline{border-color:rgba(55,245,193,.55);background:rgba(55,245,193,.06);color:var(--cyan)}
.btn--outline:hover{background:rgba(55,245,193,.16);border-color:var(--cyan)}
.btn--solid{border-color:var(--cyan);background:var(--cyan);color:var(--ink)}
.btn--solid:hover{background:var(--teal);border-color:var(--teal);color:var(--paper)}

/* ---------- 容器与通用排版 ---------- */
.container{width:100%;max-width:var(--wrap);margin:0 auto;padding-left:var(--pad);padding-right:var(--pad)}
.section{padding-block:clamp(40px,6vw,84px)}
.section--alt{background:linear-gradient(to bottom,rgba(11,31,25,.78),rgba(11,31,25,0))}
.prose{max-width:38em}
.prose p{margin:0 0 1em}
.prose p:last-child{margin-bottom:0}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding:18px 0;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;color:var(--muted);
}
.breadcrumb a{color:var(--silver);text-decoration:none}
.breadcrumb a:hover{color:var(--cyan)}
.breadcrumb span[aria-current="page"]{color:var(--cyan)}

/* ---------- 网格与卡片 ---------- */
.grid{display:grid;gap:var(--gap)}
.grid--12{grid-template-columns:repeat(12,minmax(0,1fr))}
.card{
  position:relative;padding:22px;
  border:1px solid var(--line);border-radius:var(--r);
  background:linear-gradient(160deg,rgba(18,51,42,.92),rgba(11,31,25,.92));
  transition:transform .15s var(--ease),border-color .15s var(--ease);
}
.card:hover{transform:translateY(-2px);border-color:var(--cyan)}
.stat{display:grid;gap:4px}
.stat__value{
  font-family:var(--font-num);font-weight:700;font-size:56px;line-height:.9;
  letter-spacing:-.02em;color:var(--paper);font-variant-numeric:tabular-nums;
}
.stat__label{font-family:var(--font-mono);font-size:12px;letter-spacing:.14em;color:var(--muted)}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 9px;
  border:1px solid var(--line);border-radius:var(--r);
  background:rgba(18,51,42,.6);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;color:var(--muted);
}
.tag--cyan{background:var(--cyan);border-color:var(--cyan);color:var(--ink)}
.tag--coral{background:rgba(255,107,74,.1);border-color:rgba(255,107,74,.5);color:var(--coral)}

/* ---------- 表格 ---------- */
.table-scroll{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r);background:rgba(11,31,25,.6)}
.data-table{width:100%;min-width:520px;border-collapse:collapse;font-size:16px}
.data-table th,
.data-table td{padding:11px 14px;text-align:left;border-bottom:1px solid var(--line)}
.data-table th{
  font-family:var(--font-mono);font-size:12px;font-weight:700;letter-spacing:.1em;
  color:var(--muted);background:rgba(18,51,42,.72);white-space:nowrap;
}
.data-table td{color:var(--silver)}
.data-table tbody tr:last-child td{border-bottom:0}
.data-table tbody tr:hover{background:rgba(55,245,193,.06)}

/* ---------- 图片容器基础规则 ---------- */
.media-frame{
  position:relative;display:block;overflow:hidden;
  aspect-ratio:16/9;
  border:1px solid var(--line);border-radius:var(--r);
  background:
    linear-gradient(160deg,rgba(18,51,42,.95),rgba(11,31,25,.95)),
    repeating-linear-gradient(45deg,rgba(55,245,193,.06) 0 2px,transparent 2px 10px);
}
.media-frame img{width:100%;height:100%;object-fit:cover}
.media-frame--wide{aspect-ratio:21/9}
.media-frame--square{aspect-ratio:1/1}
.media-frame--tall{aspect-ratio:3/4}
.media-frame--slice{clip-path:polygon(0 0,100% 0,100% 86%,0 100%)}
.media-frame__caption{
  position:absolute;left:0;right:0;bottom:0;
  padding:8px 12px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;color:var(--silver);
  background:linear-gradient(to top,rgba(6,17,14,.94),rgba(6,17,14,0));
}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:clamp(56px,8vw,110px);
  border-top:1px solid var(--line);
  background:linear-gradient(to bottom,rgba(11,31,25,.96),var(--ink));
}
.footer-inner{max-width:var(--wrap);margin:0 auto;padding:clamp(36px,5vw,64px) var(--pad) 24px}
.footer-top{
  display:grid;grid-template-columns:minmax(240px,1fr) 1.5fr;
  gap:clamp(24px,4vw,56px);
  padding-bottom:32px;border-bottom:1px solid var(--line);
}
.footer-brand__link{display:inline-flex;align-items:center;gap:10px;text-decoration:none;color:var(--paper)}
.footer-brand__mark{
  flex:none;width:18px;height:18px;
  border:1px solid var(--cyan);
  background:
    linear-gradient(var(--cyan),var(--cyan)) center/1px 100% no-repeat,
    linear-gradient(var(--cyan),var(--cyan)) center/100% 1px no-repeat;
}
.footer-brand__name{font-family:var(--font-head);font-weight:900;font-size:20px;letter-spacing:-.01em;color:var(--paper)}
.footer-brand__note{margin:14px 0 0;max-width:34ch;font-size:16px;line-height:1.75;color:var(--muted)}
.footer-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.footer-col__title{
  margin:0 0 12px;padding:0;
  font-family:var(--font-mono);font-size:12px;font-weight:700;letter-spacing:.18em;
  color:var(--cyan);text-transform:uppercase;
}
.footer-links{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.footer-link{
  display:inline-block;color:var(--silver);text-decoration:none;font-size:16px;
  border-bottom:1px solid transparent;
  transition:color .15s var(--ease),border-color .15s var(--ease);
}
.footer-link:hover{color:var(--cyan);border-bottom-color:var(--cyan)}
.footer-contact{
  display:grid;gap:10px;
  padding:24px 0;
  border-bottom:1px solid var(--line);
}
.contact-item{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin:0;font-size:16px;color:var(--silver)}
.contact-item__label{
  flex:none;min-width:64px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.14em;color:var(--muted);
}
.contact-item__value{color:var(--paper);word-break:break-word}
.copy-btn{
  min-height:30px;padding:0 10px;
  border:1px solid var(--line);border-radius:var(--r);
  background:transparent;color:var(--muted);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;
  cursor:pointer;
  transition:border-color .15s var(--ease),color .15s var(--ease),background .15s var(--ease);
}
.copy-btn:hover{border-color:var(--cyan);color:var(--cyan)}
.copy-btn[data-copied="true"]{background:var(--cyan);border-color:var(--cyan);color:var(--ink)}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:flex-start;justify-content:space-between;gap:12px;
  padding-top:20px;
}
.footer-legal{margin:0;max-width:72ch;font-size:13px;line-height:1.7;color:var(--muted)}
.footer-meta{
  margin:0;font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;color:var(--muted);
  font-variant-numeric:tabular-nums;
}

/* ---------- 滚动进度与返回顶部 ---------- */
.scroll-bar{
  position:fixed;top:0;left:0;width:100%;height:2px;z-index:90;
  transform:scaleX(0);transform-origin:0 50%;
  background:linear-gradient(90deg,var(--cyan),var(--coral));
  pointer-events:none;
}
.to-top{
  position:fixed;right:clamp(14px,3vw,26px);bottom:clamp(14px,3vw,26px);z-index:80;
  display:inline-flex;align-items:center;gap:6px;
  min-height:44px;padding:0 14px;
  border:1px solid var(--line);border-radius:var(--r);
  background:rgba(11,31,25,.94);color:var(--cyan);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;
  cursor:pointer;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s,border-color .15s var(--ease);
}
.to-top:hover{border-color:var(--cyan)}
.to-top[data-visible="true"]{opacity:1;visibility:visible;transform:translateY(0)}
.to-top__arrow{font-size:16px;line-height:1}
.to-top__label{line-height:1}

/* ---------- 响应式 ---------- */
@media (max-width:1120px){
  .round-chip{display:none}
  .nav-link{padding:9px 10px}
}
@media (max-width:900px){
  .site-header{padding:10px var(--pad) 6px}
  .header-inner{gap:8px}
  .header-actions{display:none}
  .nav-toggle{display:inline-flex}
  .site-nav{
    position:absolute;left:0;right:0;top:calc(100% + 8px);
    margin-left:0;display:none;
    padding:10px;
    border-radius:var(--r);
    background:rgba(6,17,14,.98);
    box-shadow:0 18px 44px rgba(0,0,0,.55);
  }
  .site-nav[data-open="true"]{display:block}
  .nav-list{flex-direction:column;align-items:stretch;gap:2px}
  .nav-link{display:block;padding:13px 14px;border-radius:var(--r);font-size:16px}
  .nav-link[aria-current="page"]{background:rgba(55,245,193,.1)}
  .nav-link[aria-current="page"]::after{display:none}
  .nav-foot{
    display:grid;grid-template-columns:1fr 1fr;gap:8px;
    margin-top:10px;padding-top:10px;
    border-top:1px solid var(--line);
  }
  .nav-foot .btn{width:100%}
  .footer-top{grid-template-columns:1fr}
}
@media (max-width:720px){
  .footer-grid{grid-template-columns:1fr 1fr}
  .contact-item__label{min-width:0;flex-basis:100%}
  .footer-bottom{flex-direction:column}
}
@media (max-width:480px){
  .brand-tag{display:none}
  .footer-grid{grid-template-columns:1fr}
  .nav-foot{grid-template-columns:1fr}
  .to-top{padding:0 12px}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
}