/* =========================================================
   W88优德赛场 · 共享样式表 /assets/site.css
   视觉内核：夜赛转播间 × 战术板
   ========================================================= */

/* ---------- 1. 变量 ---------- */
:root{
  --night:#0B1F1A;
  --turf:#123D2E;
  --clay:#A8452F;
  --clay-deep:#6E2A20;
  --chalk:#EAF2F0;
  --mist:#A9BDB6;
  --flag:#F2C94C;
  --card-red:#D64545;
  --indigo:#2C2A4A;
  --pitch:#2E8B57;

  --line:rgba(234,242,240,.16);
  --line-strong:rgba(234,242,240,.34);
  --shadow-hard:8px 8px 0 rgba(0,0,0,.5);
  --shadow-mid:5px 5px 0 rgba(0,0,0,.45);
  --shadow-soft:0 18px 40px rgba(0,0,0,.4);

  --font-head:"Noto Sans SC",system-ui,-apple-system,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono","Courier New",monospace;

  --shell:1280px;
  --gutter:clamp(16px,4vw,44px);
  --header-row:58px;
  --header-h:58px;

  --step--1:.78rem;
  --step-0:1rem;
  --step-1:1.125rem;
  --step-2:clamp(1.3rem,1.05rem + 1.1vw,1.85rem);
  --step-3:clamp(1.85rem,1.25rem + 2.6vw,3rem);
  --step-4:clamp(2.5rem,1.3rem + 5.4vw,5.4rem);
}
@media (min-width:900px){:root{--header-row:68px;--header-h:96px}}

/* ---------- 2. Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,h5,p,ul,ol,li,figure,blockquote,dl,dd{margin:0}
ul,ol{padding:0;list-style:none}
img,svg,video{display:block;max-width:100%;height:auto}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;padding:0;cursor:pointer}
table{border-collapse:collapse;width:100%}
a{color:inherit;text-decoration:none}
:focus-visible{outline:3px solid var(--flag);outline-offset:3px}

/* ---------- 3. 基础排版 ---------- */
body{
  background:var(--night);
  color:var(--chalk);
  font-family:var(--font-head);
  font-size:16px;
  font-weight:400;
  line-height:1.8;
  letter-spacing:.01em;
  min-height:100vh;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{font-weight:800;line-height:1.2;letter-spacing:-.005em}
p{max-width:72ch}
strong{font-weight:700}
small{font-size:var(--step--1)}
code,kbd,samp{font-family:var(--font-mono);font-size:.92em}
.visually-hidden{
  position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;
  overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0
}
#main-content{display:block;padding-top:var(--header-h)}

/* ---------- 4. 跳至主内容 ---------- */
.skip-link{
  position:fixed;top:-120px;left:14px;z-index:200;
  background:var(--flag);color:#191203;
  padding:11px 18px;font-weight:700;font-size:14px;
  border:2px solid #191203;box-shadow:var(--shadow-mid);
  transition:top .16s ease;
}
.skip-link:focus{top:14px}

/* ---------- 5. 滚动进度条 ---------- */
.scroll-progress{
  position:fixed;left:0;right:0;top:0;height:3px;z-index:120;
  background:rgba(234,242,240,.08);pointer-events:none;
}
.scroll-progress span{
  display:block;height:100%;width:0;
  background:linear-gradient(90deg,var(--clay),var(--flag));
  transition:width .1s linear;
}

/* ---------- 6. 头部 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:linear-gradient(to bottom,rgba(11,31,26,.9),rgba(11,31,26,0));
  border-bottom:1px solid transparent;
  transition:background .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.site-header[data-scrolled]{
  background:var(--night);
  border-bottom-color:var(--line-strong);
  box-shadow:0 12px 32px rgba(0,0,0,.5);
}
.header-inner{
  max-width:var(--shell);margin:0 auto;
  padding:0 var(--gutter);
  height:var(--header-row);
  display:flex;align-items:center;justify-content:space-between;
  gap:clamp(12px,2vw,28px);
  position:relative;
}
.brand{display:flex;align-items:center;gap:11px;min-width:0}
.brand-mark{
  font-family:var(--font-mono);font-weight:800;font-size:16px;letter-spacing:.06em;
  background:var(--clay);color:var(--chalk);
  padding:4px 8px;border:2px solid var(--clay-deep);
  box-shadow:3px 3px 0 var(--clay-deep);
  flex:none;
}
.brand-text{
  display:flex;flex-direction:column;line-height:1.1;
  font-size:15px;font-weight:800;letter-spacing:.14em;
  white-space:nowrap;
}
.brand-sub{
  font-family:var(--font-mono);font-size:10px;font-weight:500;
  letter-spacing:.18em;color:var(--mist);margin-top:3px;
}
.site-nav{display:flex;align-items:center;gap:clamp(10px,1.8vw,24px)}
.nav-list{display:flex;align-items:center;gap:clamp(8px,1.5vw,20px)}
.nav-link{
  display:inline-block;padding:6px 2px;
  font-size:14.5px;font-weight:600;letter-spacing:.04em;
  color:var(--mist);border-bottom:2px solid transparent;
  transition:color .16s ease,border-color .16s ease;
}
.nav-link:hover{color:var(--chalk)}
.nav-link[aria-current="page"]{color:var(--chalk);border-bottom-color:var(--flag)}
.header-cta{
  display:inline-flex;align-items:center;justify-content:center;
  padding:9px 16px;font-size:14px;font-weight:700;letter-spacing:.06em;
  background:var(--flag);color:#191203;
  border:2px solid #191203;box-shadow:3px 3px 0 var(--clay-deep);
  transition:transform .14s ease,box-shadow .14s ease;
  flex:none;
}
.header-cta:hover{transform:translate(-1px,-1px);box-shadow:4px 4px 0 var(--clay-deep)}
.header-cta:active{transform:translate(2px,2px);box-shadow:1px 1px 0 var(--clay-deep)}

/* 移动菜单按钮 */
.nav-toggle{
  display:none;align-items:center;gap:9px;
  padding:8px 12px;
  border:2px solid var(--line-strong);color:var(--chalk);
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.16em;
  flex:none;
}
.nav-toggle-label{text-transform:uppercase}
.nav-toggle-bars{
  display:block;position:relative;width:16px;height:2px;background:var(--chalk);
  transition:background .16s ease;
}
.nav-toggle-bars::before,.nav-toggle-bars::after{
  content:"";position:absolute;left:0;width:16px;height:2px;background:var(--chalk);
  transition:transform .18s ease;
}
.nav-toggle-bars::before{top:-5px}
.nav-toggle-bars::after{top:5px}
.site-header[data-open] .nav-toggle{border-color:var(--flag);color:var(--flag)}
.site-header[data-open] .nav-toggle-bars{background:transparent}
.site-header[data-open] .nav-toggle-bars::before{
  background:var(--flag);transform:translateY(5px) rotate(45deg)
}
.site-header[data-open] .nav-toggle-bars::after{
  background:var(--flag);transform:translateY(-5px) rotate(-45deg)
}

/* 流动信息带 */
.header-band{
  display:none;overflow:hidden;
  background:rgba(18,61,46,.9);
  border-top:1px solid var(--line);
}
@media (min-width:900px){.header-band{display:block}}
.band-track{
  display:flex;width:max-content;
  animation:band-flow 42s linear infinite;
}
.band-group{display:flex;gap:32px;padding-right:32px;align-items:center}
.band-item,.band-sep{
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.2em;
  text-transform:uppercase;color:var(--mist);white-space:nowrap;
}
.band-sep{color:var(--clay)}
@keyframes band-flow{
  from{transform:translateX(0)}
  to{transform:translateX(-50%)}
}
.header-band:hover .band-track{animation-play-state:paused}

/* ---------- 7. 移动导航面板 ---------- */
@media (max-width:899px){
  .nav-toggle{display:inline-flex}
  .site-nav{
    display:none;
    position:absolute;left:0;right:0;top:100%;
    flex-direction:column;align-items:stretch;gap:0;
    background:var(--turf);
    border-top:1px solid var(--line-strong);
    border-bottom:3px solid var(--clay);
    padding:6px var(--gutter) 22px;
    max-height:calc(100vh - var(--header-row));
    overflow-y:auto;
  }
  .site-header[data-open] .site-nav{display:flex}
  .site-header[data-open]{background:var(--night);border-bottom-color:var(--line-strong)}
  .nav-list{flex-direction:column;align-items:stretch;gap:0}
  .nav-item{border-bottom:1px solid var(--line)}
  .nav-link{
    display:block;padding:15px 0;font-size:16.5px;
    border-bottom:0;color:var(--chalk);
  }
  .nav-link[aria-current="page"]{color:var(--flag)}
  .header-cta{margin-top:18px;width:100%;padding:13px 16px;font-size:15px}
}

/* ---------- 8. 页脚 ---------- */
.site-footer{
  margin-top:clamp(56px,8vw,110px);
  background:var(--night);
  border-top:3px solid var(--clay);
  position:relative;
}
.footer-ticks{
  height:7px;
  background:repeating-linear-gradient(90deg,var(--clay) 0 18px,var(--clay-deep) 18px 36px,transparent 36px 54px);
  opacity:.85;
}
.footer-inner{
  max-width:var(--shell);margin:0 auto;
  padding:clamp(32px,5vw,62px) var(--gutter) 0;
}
.footer-grid{
  display:grid;gap:clamp(26px,3.4vw,44px);
  grid-template-columns:1fr;
}
@media (min-width:640px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (min-width:1020px){.footer-grid{grid-template-columns:1.7fr 1fr 1fr 1.5fr}}
.footer-brand{display:flex;flex-direction:column;gap:12px}
.footer-mark{
  font-family:var(--font-mono);font-weight:800;font-size:20px;letter-spacing:.08em;
  color:var(--flag);text-transform:uppercase;
}
.footer-line{font-size:15px;color:var(--chalk);line-height:1.75;max-width:34ch}
.footer-note{
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.14em;
  color:var(--mist);text-transform:uppercase;
}
.footer-col{display:flex;flex-direction:column}
.footer-col-title{
  font-family:var(--font-mono);font-size:11px;font-weight:600;
  letter-spacing:.24em;text-transform:uppercase;color:var(--mist);
  margin-bottom:15px;
}
.footer-list li+li{margin-top:9px}
.footer-link{
  font-size:14.5px;color:var(--mist);
  border-bottom:1px solid transparent;
  transition:color .16s ease,border-color .16s ease;
}
.footer-link:hover{color:var(--chalk);border-bottom-color:var(--flag)}
.footer-contact li{
  font-family:var(--font-mono);font-size:13px;color:var(--chalk);
  line-height:1.7;word-break:break-word;
}
.footer-contact li+li{margin-top:11px}
.footer-key{
  display:inline-block;min-width:44px;margin-right:8px;
  font-size:10.5px;letter-spacing:.2em;text-transform:uppercase;
  color:var(--flag);
}
.footer-contact-note{
  font-family:var(--font-head)!important;
  font-size:12.5px!important;color:var(--mist)!important;
  border-left:2px solid var(--clay);padding-left:12px;
}
.footer-base{
  max-width:var(--shell);margin:clamp(28px,4vw,52px) auto 0;
  padding:18px var(--gutter);
  border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:8px 24px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;color:var(--mist);
}
.footer-copy,.footer-icp{max-width:none}

/* ---------- 9. 通用容器与章节 ---------- */
.wrap{max-width:var(--shell);margin:0 auto;padding:0 var(--gutter)}
.section{padding:clamp(44px,7vw,88px) 0}
.section-head{display:grid;gap:12px;margin-bottom:clamp(22px,3vw,38px)}
.eyebrow{
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.28em;
  text-transform:uppercase;color:var(--flag);
}
.section-title{
  font-size:var(--step-3);font-weight:900;letter-spacing:-.02em;
  font-stretch:condensed;
}
.display-title{
  font-size:var(--step-4);font-weight:900;line-height:.98;
  letter-spacing:-.03em;font-stretch:condensed;text-transform:uppercase;
}
.section-note{font-size:var(--step--1);color:var(--mist);line-height:1.75}
.chapter-num{
  display:block;
  font-family:var(--font-mono);font-weight:800;
  font-size:clamp(2.6rem,1.4rem + 5vw,5rem);
  line-height:.82;letter-spacing:-.02em;
  color:var(--clay-deep);
  -webkit-text-stroke:2px var(--clay);
}

/* ---------- 10. 网格 ---------- */
.grid{display:grid;gap:clamp(16px,2.4vw,28px)}
.grid--3{grid-template-columns:1fr}
@media (min-width:700px){.grid--3{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1040px){.grid--3{grid-template-columns:repeat(3,1fr)}}
.grid--asym{grid-template-columns:1fr}
@media (min-width:1040px){.grid--asym{grid-template-columns:3fr 9fr;gap:clamp(24px,3vw,44px)}}

/* ---------- 11. 卡片 ---------- */
.card{
  background:var(--turf);
  border:3px solid var(--line-strong);
  box-shadow:var(--shadow-mid);
  padding:clamp(18px,2.6vw,28px);
  display:flex;flex-direction:column;gap:12px;
  transition:transform .16s ease,box-shadow .16s ease,border-color .16s ease;
}
.card:hover{transform:translate(-2px,-2px);box-shadow:var(--shadow-hard);border-color:var(--clay)}
.card-head{display:flex;align-items:baseline;justify-content:space-between;gap:12px}
.card-title{font-size:var(--step-2);font-weight:800;line-height:1.25}
.card-body{font-size:15px;color:var(--mist);line-height:1.78}
.card-meta{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;
  color:var(--mist);text-transform:uppercase;
}

/* ---------- 12. 图片容器 ---------- */
.media-frame{
  position:relative;overflow:hidden;
  aspect-ratio:16/9;
  border:3px solid var(--line-strong);
  background:linear-gradient(135deg,var(--turf) 0%,var(--night) 70%);
  box-shadow:var(--shadow-mid);
}
.media-frame img{width:100%;height:100%;object-fit:cover}
.media-frame::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(115deg,rgba(168,69,47,.26) 0%,rgba(168,69,47,0) 58%);
}
.media-frame--wide{aspect-ratio:21/9}
.media-frame--tall{aspect-ratio:4/5}
.media-frame--square{aspect-ratio:1/1}

/* ---------- 13. 标签 ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.14em;
  text-transform:uppercase;padding:3px 8px;
  border:1px solid currentColor;white-space:nowrap;
}
.tag--yellow{color:var(--flag)}
.tag--red{color:var(--card-red)}
.tag--green{color:var(--pitch)}

/* ---------- 14. 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:12px 22px;font-size:15px;font-weight:700;letter-spacing:.05em;
  border:2px solid var(--chalk);
  transition:transform .14s ease,box-shadow .14s ease,background .14s ease,color .14s ease;
}
.btn--solid{
  background:var(--flag);color:#191203;border-color:#191203;
  box-shadow:var(--shadow-mid);
}
.btn--solid:hover{transform:translate(-2px,-2px);box-shadow:var(--shadow-hard)}
.btn--solid:active{transform:translate(3px,3px);box-shadow:1px 1px 0 rgba(0,0,0,.45)}
.btn--ghost{
  background:transparent;color:var(--chalk);border-color:var(--chalk);
  box-shadow:5px 5px 0 var(--clay-deep);
}
.btn--ghost:hover{background:var(--clay);transform:translate(-2px,-2px);box-shadow:var(--shadow-hard)}
.btn--ghost:active{transform:translate(3px,3px);box-shadow:1px 1px 0 rgba(0,0,0,.45)}

/* ---------- 15. 面包屑 ---------- */
.crumbs{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.12em;
  color:var(--mist);
}
.crumbs-list{display:flex;flex-wrap:wrap;align-items:center;gap:9px}
.crumbs-link{
  color:var(--mist);border-bottom:1px solid transparent;
  transition:color .16s ease,border-color .16s ease;
}
.crumbs-link:hover{color:var(--flag);border-bottom-color:var(--flag)}
.crumbs-sep{color:var(--clay)}
.crumbs-current{color:var(--chalk)}

/* ---------- 16. 赛季轮次刻度 ---------- */
.rail{display:flex;flex-direction:column;border-left:3px solid var(--clay);padding-left:16px}
.rail-item{
  display:flex;align-items:baseline;gap:12px;
  padding:11px 0;border-bottom:1px dashed var(--line);
}
.rail-num{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.16em;
  color:var(--flag);flex:none;
}

/* ---------- 17. 数据表 ---------- */
.data-table{
  font-family:var(--font-mono);font-size:13.5px;
  border:2px solid var(--line-strong);
  background:rgba(11,31,26,.6);
}
.data-table th,.data-table td{padding:11px 13px;text-align:left;border-bottom:1px solid var(--line)}
.data-table th{
  background:var(--turf);color:var(--mist);
  font-size:11.5px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;
}
.data-table tbody tr:nth-child(odd){background:rgba(18,61,46,.35)}
.data-table tbody tr:last-child td{border-bottom:0}

/* ---------- 18. 标签页 / 分段切换 ---------- */
.tabs{
  border:3px solid var(--line-strong);
  background:rgba(18,61,46,.55);
  box-shadow:var(--shadow-mid);
}
.tabs-list{
  display:flex;flex-wrap:wrap;
  background:var(--night);
  border-bottom:3px solid var(--line-strong);
}
.tab{
  font-family:var(--font-mono);font-size:12.5px;letter-spacing:.14em;
  text-transform:uppercase;
  padding:13px 20px;color:var(--mist);
  border-right:1px solid var(--line);
  transition:background .16s ease,color .16s ease;
}
.tab:hover{color:var(--chalk);background:rgba(168,69,47,.28)}
.tab[aria-selected="true"]{background:var(--clay);color:var(--chalk)}
.tabpanel{padding:clamp(18px,2.6vw,30px)}
.tabpanel[hidden]{display:none}

/* ---------- 19. 折叠说明 ---------- */
.disclosure{
  border:2px solid var(--line-strong);
  background:rgba(11,31,26,.6);
}
.disclosure+.disclosure{margin-top:12px}
.disclosure-trigger{
  cursor:pointer;list-style:none;
  padding:14px 18px;
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  font-family:var(--font-mono);font-size:13.5px;letter-spacing:.1em;
  color:var(--chalk);
}
.disclosure-trigger::-webkit-details-marker{display:none}
.disclosure-trigger::after{content:"＋";color:var(--flag);flex:none}
.disclosure[open] .disclosure-trigger::after{content:"－"}
.disclosure-panel{padding:0 18px 18px;font-size:15px;color:var(--mist);line-height:1.8}

/* ---------- 20. 全宽比分带 ---------- */
.score-band{
  background:var(--clay);
  border-top:3px solid var(--clay-deep);
  border-bottom:3px solid var(--clay-deep);
  box-shadow:var(--shadow-hard);
  padding:clamp(18px,3vw,32px) 0;
}
.score-band-inner{
  max-width:var(--shell);margin:0 auto;padding:0 var(--gutter);
  display:flex;flex-wrap:wrap;align-items:baseline;gap:14px 32px;
}

/* ---------- 21. 动效偏好 ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms!important;
    animation-iteration-count:1!important;
    transition-duration:.001ms!important;
  }
  .band-track{animation:none;transform:none}
}