/* ============================================================
   开云体育入口 · 共享样式 /assets/site.css
   基调：喀斯特夜色 + 球场灯光 + 编辑部粗野主义
   ============================================================ */

:root{
  --ink:#0B221E;
  --river:#17635A;
  --bamboo:#2E8C7A;
  --mist:#F5F2EA;
  --paper:#CFC9BA;
  --flame:#FF6A2B;
  --score:#FFC53D;
  --cinnabar:#C0392B;
  --slate:#3A4A46;
  --night:#07120F;

  --font-display:"Noto Sans SC","Archivo Black","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:"DIN Alternate","Roboto Mono","SFMono-Regular",ui-monospace,"Courier New",monospace;

  --wrap:1200px;
  --gutter:clamp(18px,4vw,40px);
  --rule:3px solid var(--paper);
  --shadow-hard:8px 8px 0 rgba(7,18,15,.9);
  --ease:cubic-bezier(.2,.7,.3,1);
}

/* ---------- reset ---------- */
*,
*::before,
*::after{box-sizing:border-box;}

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

body{
  margin:0;
  background:var(--mist);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

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

h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:900;
  line-height:1.15;
  letter-spacing:-.02em;
  margin:0 0 .5em;
}

p{margin:0 0 1em;}
ul,ol{margin:0;padding:0;}

a{color:var(--river);text-decoration:none;}
a:hover{color:var(--flame);}

button{font:inherit;color:inherit;}

table{border-collapse:collapse;width:100%;}

:focus-visible{
  outline:3px solid var(--flame);
  outline-offset:3px;
  border-radius:2px;
}

/* ---------- 排版与工具类 ---------- */
.wrap{
  width:100%;
  max-width:var(--wrap);
  margin:0 auto;
  padding:0 var(--gutter);
}
.wrap--narrow{max-width:820px;}

.num{
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-feature-settings:"tnum" 1;
  color:var(--score);
  letter-spacing:.02em;
  font-weight:700;
}

.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:2px 10px;
  font-size:12px;
  font-weight:800;
  letter-spacing:.08em;
  line-height:1.8;
  color:var(--mist);
  background:var(--river);
  border:2px solid var(--night);
  clip-path:polygon(0 0,calc(100% - 8px) 0,100% 8px,100% 100%,0 100%);
}
.tag--live{background:var(--cinnabar);}
.tag--soon{background:var(--score);color:var(--night);}

/* ---------- 跳转链接 ---------- */
.skip-link{
  position:absolute;
  top:-100px;
  left:var(--gutter);
  z-index:200;
  padding:12px 20px;
  background:var(--score);
  color:var(--night);
  font-weight:800;
  font-size:14px;
  border:3px solid var(--night);
  transition:top .2s var(--ease);
}
.skip-link:focus{top:10px;color:var(--night);}

/* ---------- 按钮 ---------- */
.btn{
  position:relative;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:0 22px;
  font-family:var(--font-display);
  font-size:15px;
  font-weight:800;
  letter-spacing:.04em;
  line-height:1;
  text-decoration:none;
  color:var(--night);
  background:var(--flame);
  border:0;
  cursor:pointer;
  overflow:hidden;
  clip-path:polygon(0 0,calc(100% - 14px) 0,100% 14px,100% 100%,14px 100%,0 calc(100% - 14px));
  transition:transform .18s var(--ease),background-color .18s var(--ease);
}
.btn::after{
  content:"";
  position:absolute;
  top:0;
  left:0;
  width:12px;
  height:100%;
  background:var(--night);
  opacity:0;
  transform:translateX(-4px);
  transition:opacity .2s var(--ease),transform .2s var(--ease);
}
.btn:hover,
.btn:focus-visible{
  color:var(--night);
  background:#FF8149;
  transform:translateX(2px);
}
.btn:hover::after,
.btn:focus-visible::after{
  opacity:.22;
  transform:translateX(6px);
}
.btn--flame{background:var(--flame);color:var(--night);}
.btn--ghost{
  background:transparent;
  color:var(--mist);
  box-shadow:inset 0 0 0 2px var(--paper);
}
.btn--ghost:hover,
.btn--ghost:focus-visible{
  background:var(--score);
  color:var(--night);
  box-shadow:inset 0 0 0 2px var(--score);
}

/* ============================================================
   页头：居中刊头
   ============================================================ */
.site-header{
  position:relative;
  background:var(--ink);
  color:var(--mist);
  border-bottom:3px solid var(--paper);
  padding-top:26px;
}
.site-header::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background-image:repeating-radial-gradient(circle at 88% 8%,rgba(46,140,122,.16) 0 1px,transparent 1px 28px);
  opacity:.7;
}
.masthead{
  position:relative;
  z-index:1;
  max-width:var(--wrap);
  margin:0 auto;
  padding:0 var(--gutter);
  text-align:center;
}
.masthead__kicker{
  margin:0 0 8px;
  font-size:11px;
  font-weight:700;
  letter-spacing:.34em;
  color:var(--bamboo);
  text-transform:uppercase;
}
.masthead__brand{
  display:inline-block;
  color:var(--mist);
  text-decoration:none;
  line-height:1;
}
.masthead__cn{
  display:inline-block;
  font-family:var(--font-display);
  font-size:clamp(30px,5.4vw,52px);
  font-weight:900;
  letter-spacing:-.02em;
  color:var(--mist);
  padding-bottom:6px;
  border-bottom:5px solid var(--flame);
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.masthead__brand:hover .masthead__cn,
.masthead__brand:focus-visible .masthead__cn{
  color:var(--score);
  border-color:var(--score);
}
.masthead__tagline{
  margin:12px 0 0;
  font-size:13px;
  font-weight:500;
  letter-spacing:.22em;
  color:var(--paper);
}

.header-bar{
  position:relative;
  z-index:2;
  max-width:var(--wrap);
  margin:18px auto 0;
  padding:10px var(--gutter) 12px;
  display:flex;
  justify-content:center;
  align-items:center;
  border-top:2px solid rgba(207,201,186,.22);
}
.header-side{
  position:absolute;
  top:50%;
  right:var(--gutter);
  transform:translateY(-50%);
  display:flex;
  align-items:center;
  gap:10px;
}
.header-tools{display:flex;align-items:center;gap:8px;}

.icon-link{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:44px;
  height:44px;
  color:var(--mist);
  background:transparent;
  border:2px solid rgba(207,201,186,.34);
  border-radius:50%;
  text-decoration:none;
  transition:color .2s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease);
}
.icon-link svg{width:20px;height:20px;display:block;}
.icon-link:hover,
.icon-link:focus-visible{
  color:var(--night);
  background:var(--score);
  border-color:var(--score);
}

/* ---------- 主导航 ---------- */
.primary-nav{display:block;}
.primary-nav__list{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:clamp(10px,2.2vw,30px);
  list-style:none;
  margin:0;
  padding:0;
}
.primary-nav__list a{
  display:inline-flex;
  align-items:center;
  min-height:44px;
  padding:0 2px;
  font-family:var(--font-display);
  font-size:15px;
  font-weight:800;
  letter-spacing:.05em;
  color:var(--mist);
  text-decoration:none;
  border-bottom:3px solid transparent;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.primary-nav__list a:hover,
.primary-nav__list a:focus-visible{
  color:var(--score);
  border-bottom-color:var(--flame);
}
.primary-nav__list a[aria-current="page"]{
  color:var(--score);
  border-bottom-color:var(--flame);
}

/* ---------- 移动端菜单按钮 ---------- */
.nav-toggle{
  display:none;
  align-items:center;
  gap:8px;
  min-height:44px;
  min-width:44px;
  padding:0 14px;
  background:transparent;
  color:var(--mist);
  border:2px solid rgba(207,201,186,.34);
  cursor:pointer;
  font-family:var(--font-display);
  font-size:13px;
  font-weight:800;
  letter-spacing:.12em;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.nav-toggle:hover,
.nav-toggle:focus-visible{color:var(--score);border-color:var(--score);}
.nav-toggle__bars{display:grid;gap:4px;}
.nav-toggle__bars i{
  display:block;
  width:18px;
  height:2px;
  background:currentColor;
  transition:transform .25s var(--ease),opacity .2s var(--ease);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(1){transform:translateY(6px) 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(-6px) rotate(-45deg);}

/* ============================================================
   页脚
   ============================================================ */
.site-footer{
  position:relative;
  background:var(--night);
  color:var(--mist);
  border-top:3px solid var(--paper);
  overflow:hidden;
}
.site-footer::before{
  content:"";
  position:absolute;
  inset:-20% -10% auto auto;
  width:min(620px,90vw);
  height:min(620px,90vw);
  pointer-events:none;
  background-image:repeating-radial-gradient(circle at 50% 50%,rgba(255,197,61,.085) 0 1px,transparent 1px 30px);
}
.footer__inner{
  position:relative;
  z-index:1;
  max-width:var(--wrap);
  margin:0 auto;
  padding:56px var(--gutter) 34px;
  display:grid;
  grid-template-columns:1fr 1.8fr;
  gap:44px 48px;
}
.footer__brand{max-width:340px;}
.footer__logo{
  margin:0 0 6px;
  font-family:var(--font-display);
  font-size:clamp(22px,3vw,30px);
  font-weight:900;
  letter-spacing:-.02em;
  color:var(--mist);
}
.footer__sub{
  margin:0 0 16px;
  font-size:12px;
  letter-spacing:.24em;
  color:var(--bamboo);
  text-transform:uppercase;
}
.footer__route{
  margin:0 0 18px;
  font-size:15px;
  line-height:1.8;
  color:rgba(245,242,234,.82);
  border-left:3px solid var(--flame);
  padding-left:14px;
}
.footer__stamp{
  margin:0;
  display:inline-block;
  padding:4px 12px;
  font-size:12px;
  letter-spacing:.14em;
  color:var(--score);
  border:2px solid rgba(255,197,61,.4);
}
.footer__nav{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:28px;
}
.footer__col{min-width:0;}
.footer__title{
  margin:0 0 14px;
  font-size:12px;
  font-weight:800;
  letter-spacing:.2em;
  color:var(--bamboo);
}
.footer__list{
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  gap:10px;
}
.footer__list a{
  display:inline-block;
  min-height:24px;
  font-size:15px;
  color:rgba(245,242,234,.9);
  text-decoration:none;
  border-bottom:1px solid transparent;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.footer__list a:hover,
.footer__list a:focus-visible{
  color:var(--score);
  border-bottom-color:var(--flame);
}
.footer__meta{
  font-size:13px;
  line-height:1.7;
  color:rgba(207,201,186,.78);
  word-break:break-word;
}
.footer__legal{
  position:relative;
  z-index:1;
  max-width:var(--wrap);
  margin:0 auto;
  padding:18px var(--gutter) 28px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:10px 24px;
  border-top:1px solid rgba(207,201,186,.2);
}
.footer__legal-text{
  margin:0;
  font-size:12.5px;
  line-height:1.7;
  color:rgba(207,201,186,.7);
}

/* ============================================================
   通用内容组件
   ============================================================ */
.breadcrumb{
  max-width:var(--wrap);
  margin:0 auto;
  padding:20px var(--gutter) 0;
}
.breadcrumb ol{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  list-style:none;
  margin:0;
  padding:0;
  font-size:13px;
  color:var(--slate);
}
.breadcrumb li + li::before{
  content:"／";
  margin-right:8px;
  color:var(--bamboo);
}
.breadcrumb a{
  color:var(--river);
  text-decoration:none;
  border-bottom:1px solid currentColor;
}
.breadcrumb a:hover{color:var(--flame);}
.breadcrumb--light ol,
.breadcrumb--light li{color:rgba(245,242,234,.72);}
.breadcrumb--light a{color:var(--score);}

.section-band{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px 20px;
  padding:18px var(--gutter);
  background:var(--river);
  color:var(--mist);
  border-top:3px solid var(--paper);
  border-bottom:3px solid var(--paper);
}
.section-band--alt{background:var(--ink);}
.section-band__index{
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:14px;
  font-weight:700;
  letter-spacing:.16em;
  color:var(--flame);
}
.section-band__title{
  margin:0;
  font-size:clamp(20px,3vw,32px);
  font-weight:900;
  letter-spacing:-.02em;
  color:var(--mist);
}
.section-band__note{
  margin:0;
  font-size:14px;
  line-height:1.6;
  color:rgba(245,242,234,.78);
}

.card-slab{
  padding:26px;
  background:var(--mist);
  border:3px solid var(--ink);
  box-shadow:var(--shadow-hard);
}

/* ---------- 可复用图片容器 ---------- */
.media{
  position:relative;
  display:block;
  overflow:hidden;
  aspect-ratio:16 / 9;
  background:var(--river);
  border:3px solid var(--paper);
  box-shadow:var(--shadow-hard);
}
.media img{
  display:block;
  width:100%;
  height:100%;
  object-fit:cover;
  filter:saturate(1.06) contrast(1.04) brightness(.96);
}
.media--wide{aspect-ratio:21 / 9;}
.media--portrait{aspect-ratio:3 / 4;}
.media--square{aspect-ratio:1 / 1;}
.media--slant{clip-path:polygon(0 0,100% 0,100% calc(100% - 40px),0 100%);}
.media--placeholder{
  background-color:var(--river);
  background-image:repeating-radial-gradient(circle at 50% 55%,rgba(245,242,234,.13) 0 1px,transparent 1px 22px);
}

/* ============================================================
   动效与状态
   ============================================================ */
.js [data-reveal]{
  opacity:0;
  transform:translateY(16px);
  transition:opacity .32s var(--ease),transform .32s var(--ease);
}
.js [data-reveal].is-in{
  opacity:1;
  transform:none;
}

html.nav-open,
html.nav-open body{overflow:hidden;}

.to-top{
  position:fixed;
  right:clamp(14px,3vw,26px);
  bottom:clamp(14px,3vw,26px);
  z-index:90;
  width:54px;
  height:54px;
  display:grid;
  place-items:center;
  padding:0;
  background:var(--ink);
  color:var(--score);
  border:2px solid var(--paper);
  border-radius:50%;
  cursor:pointer;
  opacity:0;
  visibility:hidden;
  transform:translateY(12px);
  transition:opacity .25s var(--ease),transform .25s var(--ease),visibility .25s var(--ease),background-color .2s var(--ease);
}
.to-top.is-visible{
  opacity:1;
  visibility:visible;
  transform:none;
}
.to-top:hover,
.to-top:focus-visible{background:var(--river);}
.to-top__ring{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  transform:rotate(-90deg);
}
.to-top__track{
  fill:none;
  stroke:rgba(207,201,186,.28);
  stroke-width:3;
}
.to-top__bar{
  fill:none;
  stroke:var(--flame);
  stroke-width:3;
  stroke-linecap:round;
  transition:stroke-dashoffset .12s linear;
}
.to-top__arrow{
  position:relative;
  font-family:var(--font-num);
  font-size:19px;
  font-weight:700;
  line-height:1;
}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width:1024px){
  .footer__inner{
    grid-template-columns:1fr;
    gap:34px;
  }
  .footer__brand{max-width:none;}
}

@media (max-width:900px){
  .site-header{padding-top:20px;}
  .header-bar{
    justify-content:flex-start;
    margin-top:14px;
    padding-bottom:14px;
  }
  .header-tools{display:none;}
  .nav-toggle{display:inline-flex;}

  .primary-nav{
    position:fixed;
    left:0;
    right:0;
    bottom:0;
    z-index:80;
    max-height:78vh;
    overflow-y:auto;
    padding:14px var(--gutter) calc(20px + env(safe-area-inset-bottom));
    background:var(--ink);
    border-top:3px solid var(--paper);
    box-shadow:0 -10px 0 rgba(7,18,15,.35);
    transform:translateY(112%);
    visibility:hidden;
    transition:transform .32s var(--ease),visibility .32s var(--ease);
  }
  .primary-nav[data-open="true"]{
    transform:translateY(0);
    visibility:visible;
  }
  .primary-nav__list{
    flex-direction:column;
    align-items:stretch;
    gap:0;
  }
  .primary-nav__list li + li{border-top:1px solid rgba(207,201,186,.16);}
  .primary-nav__list a{
    width:100%;
    min-height:52px;
    padding:0 10px;
    font-size:16px;
    border-bottom:0;
    border-left:4px solid transparent;
  }
  .primary-nav__list a[aria-current="page"]{
    background:rgba(46,140,122,.18);
    border-left-color:var(--flame);
    border-bottom-color:transparent;
  }
  .primary-nav__list a:hover,
  .primary-nav__list a:focus-visible{
    border-left-color:var(--score);
    border-bottom-color:transparent;
  }

  .footer__nav{grid-template-columns:1fr 1fr;gap:26px 20px;}
  .footer__inner{padding-top:44px;}
  .to-top{bottom:calc(18px + 0px);}
}

@media (max-width:640px){
  body{font-size:16px;}
  .masthead__tagline{font-size:12px;letter-spacing:.16em;}
  .header-side{gap:8px;}
  .header-cta{padding:0 14px;font-size:13px;}
  .nav-toggle{padding:0 10px;font-size:12px;letter-spacing:.06em;}
  .footer__nav{grid-template-columns:1fr;}
  .footer__legal{flex-direction:column;align-items:flex-start;}
  .section-band{padding:16px var(--gutter);}
  .card-slab{padding:20px;box-shadow:6px 6px 0 rgba(7,18,15,.9);}
  .media{box-shadow:6px 6px 0 rgba(7,18,15,.9);}
}

/* ============================================================
   无障碍与减弱动效
   ============================================================ */
@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-delay:0ms !important;
  }
  .primary-nav,
  .to-top{transition:none !important;}
  .btn:hover,
  .btn:focus-visible{transform:none;}
}