/* ============================================================
   真人百家家乐 · 红蓝电竞中文站  /assets/site.css
   共享外壳：reset、变量、排版、页头轨道、页脚、通用组件
   ============================================================ */

/* ---------- 1. reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0}
h1,h2,h3,h4,h5,h6,p,figure,blockquote{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img,svg,video{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit;margin:0}
button{background:none;border:0;cursor:pointer}
table{border-collapse:collapse;width:100%}
[hidden]{display:none!important}
hr{border:0}

/* ---------- 2. 变量 ---------- */
:root{
  --cream:#F4EFE6;
  --panel:#E7E0D4;
  --ink:#1C1714;
  --ink-soft:#3A322C;
  --gray:#6E6A66;
  --ag-red:#D93A2B;
  --crimson:#8C1F18;
  --cobalt:#1D4ED8;
  --ice:#7FB6E8;
  --cyan:#2BE6C8;
  --cyan-deep:#0E7A69;
  --gold:#B98A2E;

  --hair:rgba(28,23,20,.16);
  --hair-soft:rgba(28,23,20,.09);
  --hair-strong:rgba(28,23,20,.34);
  --hair-light:rgba(244,239,230,.15);

  --rail-w:264px;
  --topbar-h:64px;
  --topbar-h-sm:56px;

  --focus:var(--cobalt);
  --ease:160ms cubic-bezier(.2,.6,.2,1);

  --font-display:"Helvetica Neue Condensed","Arial Narrow","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --font-body:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"DejaVu Sans Mono",monospace;
}

/* ---------- 3. 页面基底 ---------- */
body{
  background-color:var(--cream);
  background-image:linear-gradient(90deg,rgba(28,23,20,.035) 1px,transparent 1px);
  background-size:96px 100%;
  color:var(--ink);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.9;
  font-weight:400;
  padding-top:var(--topbar-h-sm);
  -webkit-font-smoothing:antialiased;
}
@media (min-width:1024px){
  body{padding-top:var(--topbar-h);padding-left:var(--rail-w)}
}
#main-content{scroll-margin-top:84px}
@media (max-width:1023px){
  html.nav-open{overflow:hidden}
}

:focus-visible{outline:2px solid var(--focus);outline-offset:2px}
.rail{--focus:var(--cyan)}
.site-footer{--focus:var(--cyan)}

/* ---------- 4. 跳过链接 ---------- */
.skip-link{
  position:fixed;top:10px;left:10px;z-index:200;
  display:inline-block;padding:10px 16px;
  background:var(--ink);color:var(--cream);
  font-size:13px;letter-spacing:.1em;
  transform:translateY(-200%);
  transition:transform var(--ease);
}
.skip-link:focus{transform:translateY(0)}

/* ---------- 5. 页头：顶部赛季切换条 ---------- */
.site-header{position:relative;z-index:60}

.topbar{
  position:fixed;top:0;left:0;right:0;height:var(--topbar-h-sm);z-index:60;
  display:flex;align-items:center;gap:14px;
  padding:0 16px;
  background:rgba(244,239,230,.94);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--hair);
}
@media (min-width:1024px){
  .topbar{left:var(--rail-w);height:var(--topbar-h);padding:0 40px;gap:20px}
}

.topbar__brand{display:flex;flex-direction:column;line-height:1.15;min-width:0;flex:1}
.topbar__brand-name{font-family:var(--font-display);font-weight:600;font-size:17px;letter-spacing:.02em;white-space:nowrap}
.topbar__brand-sub{font-family:var(--font-mono);font-size:10px;letter-spacing:.18em;color:var(--gray);white-space:nowrap}
@media (min-width:1024px){.topbar__brand{display:none}}

.topbar__tools{display:none}
@media (min-width:1024px){
  .topbar__tools{display:flex;align-items:center;gap:16px;flex:1;min-width:0}
}
.topbar__cta{margin-left:auto;flex:none}

/* ---------- 6. 通用控件 ---------- */
.field{display:inline-flex;align-items:center;gap:10px;flex:none;min-width:0}
.field__label{
  font-family:var(--font-mono);font-size:10px;letter-spacing:.18em;
  text-transform:uppercase;color:var(--gray);white-space:nowrap;
}
.field__select{
  height:38px;padding:0 30px 0 12px;
  background:var(--panel);
  border:1px solid var(--hair-strong);
  font-family:var(--font-mono);font-size:13px;letter-spacing:.06em;
  color:var(--ink);
  appearance:none;-webkit-appearance:none;
  background-image:
    linear-gradient(45deg,transparent 50%,var(--ink) 50%),
    linear-gradient(135deg,var(--ink) 50%,transparent 50%);
  background-position:calc(100% - 17px) 17px,calc(100% - 12px) 17px;
  background-size:5px 5px,5px 5px;
  background-repeat:no-repeat;
  cursor:pointer;
  transition:border-color var(--ease),background-color var(--ease);
}
.field__select:hover{border-color:var(--ink)}

.searchbox{
  display:flex;align-items:center;gap:8px;
  flex:1;min-width:0;max-width:420px;height:38px;
  padding:0 12px;
  background:var(--panel);
  border:1px solid var(--hair-strong);
  transition:border-color var(--ease),box-shadow var(--ease);
}
.searchbox:focus-within{border-color:var(--cobalt);box-shadow:inset 0 0 0 1px var(--cobalt)}
.searchbox__icon{
  width:9px;height:9px;flex:none;background:var(--ag-red);
  clip-path:polygon(0 0,100% 0,100% 62%,62% 100%,0 100%);
}
.searchbox__input{
  flex:1;min-width:0;padding:0;border:0;background:transparent;
  font-size:14px;letter-spacing:.02em;outline:none;
}
.searchbox__input::placeholder{color:var(--gray)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:10px 18px;
  border:1px solid transparent;
  background:var(--ink);color:var(--cream);
  font-size:13px;font-weight:600;letter-spacing:.08em;white-space:nowrap;
  transition:background-color var(--ease),color var(--ease),border-color var(--ease),transform var(--ease);
}
.btn:hover{transform:translateY(-1px)}
.btn--red{background:var(--ag-red);color:#fff}
.btn--red:hover{background:var(--crimson)}
.btn--blue{background:var(--cobalt);color:#fff}
.btn--blue:hover{background:#173CAE}
.btn--ghost{background:transparent;color:var(--ink);border-color:var(--hair-strong)}
.btn--ghost:hover{background:var(--ink);color:var(--cream);border-color:var(--ink)}
.btn--sm{padding:8px 14px;font-size:12px;letter-spacing:.1em}

/* ---------- 7. 移动导航按钮 ---------- */
.nav-toggle{
  display:inline-flex;align-items:center;justify-content:center;
  width:42px;height:38px;flex:none;
  background:var(--ink);
  transition:background-color var(--ease);
}
.nav-toggle:hover{background:var(--ag-red)}
.nav-toggle__bars{position:relative;display:block;width:18px;height:2px;background:var(--cream)}
.nav-toggle__bars::before,
.nav-toggle__bars::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--cream);
  transition:transform var(--ease),top var(--ease);
}
.nav-toggle__bars::before{top:-6px}
.nav-toggle__bars::after{top:6px}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars{background:transparent}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before{top:0;transform:rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after{top:0;transform:rotate(-45deg)}
@media (min-width:1024px){.nav-toggle{display:none}}

/* ---------- 8. 侧边轨道导航 ---------- */
.rail{
  position:fixed;left:0;top:var(--topbar-h-sm);bottom:0;
  width:min(88vw,320px);z-index:80;
  display:flex;flex-direction:column;
  padding:24px 20px 20px;
  overflow-y:auto;
  background:var(--ink);
  color:rgba(244,239,230,.78);
  border-right:1px solid var(--hair-light);
  transform:translateX(-102%);
  transition:transform 220ms cubic-bezier(.2,.6,.2,1);
}
.rail[data-open]{transform:translateX(0)}
@media (min-width:1024px){
  .rail{
    top:0;width:var(--rail-w);
    transform:none;transition:none;
    padding:28px 22px 20px;
    border-right-color:rgba(244,239,230,.12);
  }
}

.rail__progress{
  position:absolute;left:0;top:0;width:3px;height:100%;
  transform:scaleY(0);transform-origin:top;
  background:linear-gradient(180deg,var(--ag-red),var(--gold) 52%,var(--cyan));
  pointer-events:none;
}

.rail__brand{display:none;flex-direction:column;gap:5px;padding-bottom:20px;border-bottom:1px solid var(--hair-light)}
.rail__brand-name{font-family:var(--font-display);font-size:19px;font-weight:600;letter-spacing:.02em;color:var(--cream);line-height:1.15}
.rail__brand-sub{font-family:var(--font-mono);font-size:10px;letter-spacing:.18em;color:var(--gold)}
@media (min-width:1024px){.rail__brand{display:flex}}

.rail__tools{
  display:grid;gap:12px;
  padding:0 0 20px;margin-bottom:16px;
  border-bottom:1px solid var(--hair-light);
}
.rail__tools .field{display:flex;width:100%}
.rail__tools .field__label{color:rgba(244,239,230,.55)}
.rail__tools .field__select{
  width:100%;
  background-color:rgba(244,239,230,.08);
  border-color:rgba(244,239,230,.3);
  color:var(--cream);
  background-image:
    linear-gradient(45deg,transparent 50%,var(--cream) 50%),
    linear-gradient(135deg,var(--cream) 50%,transparent 50%);
}
.rail__tools .field__select:hover{border-color:rgba(244,239,230,.6)}
.rail__tools .searchbox{max-width:none;background:rgba(244,239,230,.08);border-color:rgba(244,239,230,.3)}
.rail__tools .searchbox__icon{background:var(--cyan)}
.rail__tools .searchbox__input{color:var(--cream)}
.rail__tools .searchbox__input::placeholder{color:rgba(244,239,230,.5)}
.rail__cta{width:100%}
@media (min-width:1024px){.rail__tools{display:none}}

.rail__list{margin-top:4px}
@media (min-width:1024px){.rail__list{margin-top:20px}}
.rail__item+.rail__item{margin-top:2px}
.rail__link{
  position:relative;
  display:flex;align-items:baseline;gap:14px;
  padding:11px 10px 11px 12px;
  color:rgba(244,239,230,.68);
  font-size:16px;letter-spacing:.02em;line-height:1.5;
  border-bottom:1px solid rgba(244,239,230,.1);
  transition:color var(--ease),background-color var(--ease),padding-left var(--ease);
}
.rail__link:hover{color:var(--cream);background:rgba(244,239,230,.07);padding-left:16px}
.rail__link[aria-current="page"]{color:var(--cream);background:rgba(244,239,230,.05)}
.rail__link[aria-current="page"]::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;background:var(--ag-red);
}
.rail__num{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;
  color:rgba(244,239,230,.42);flex:none;
}
.rail__link[aria-current="page"] .rail__num{color:var(--cyan)}
.rail__label{font-weight:500}

.rail__note{
  margin-top:auto;padding-top:24px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;
  color:rgba(244,239,230,.45);
}

.rail-scrim{position:fixed;inset:0;z-index:70;background:rgba(28,23,20,.55)}
@media (min-width:1024px){.rail-scrim{display:none}}

/* ---------- 9. 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:96px;
  padding:0 0 28px;
  background:var(--ink);
  color:rgba(244,239,230,.75);
}
.footer__edge{
  display:block;height:6px;
  background:linear-gradient(90deg,var(--ag-red) 0 38%,var(--ink) 38% 62%,var(--cobalt) 62% 100%);
}
.footer__inner{position:relative;z-index:1;padding-top:56px}

.footer__grid{display:grid;grid-template-columns:1fr;gap:36px}
@media (min-width:640px){.footer__grid{grid-template-columns:1fr 1fr}}
@media (min-width:1024px){.footer__grid{grid-template-columns:1.5fr 1fr 1fr 1.4fr;gap:24px 40px}}

.footer__brand{
  font-family:var(--font-display);font-weight:600;font-size:26px;line-height:1.1;
  letter-spacing:-.01em;color:var(--cream);
}
.footer__tag{margin-top:12px;font-size:15px;line-height:1.8;max-width:34ch;color:rgba(244,239,230,.7)}
.footer__meta{
  display:flex;align-items:center;gap:8px;margin-top:16px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.18em;color:rgba(244,239,230,.55);
}
.dot{display:inline-block;width:8px;height:8px;background:var(--gray);flex:none}
.dot--red{background:var(--ag-red)}

.footer__title{
  margin-bottom:14px;
  font-family:var(--font-mono);font-size:11px;font-weight:600;
  letter-spacing:.18em;text-transform:uppercase;color:var(--gold);
}
.footer__list li+li{margin-top:10px}
.footer__link{
  font-size:15px;color:rgba(244,239,230,.78);
  border-bottom:1px solid transparent;
  transition:color var(--ease),border-color var(--ease);
}
.footer__link:hover{color:var(--cyan);border-bottom-color:var(--cyan)}
.footer__list--contact li+li{margin-top:12px}
.footer__value{
  display:block;max-width:34ch;
  font-size:14px;line-height:1.8;color:rgba(244,239,230,.68);
}
.footer__value--mono{font-family:var(--font-mono);letter-spacing:.04em;color:var(--cream)}

.footer__bottom{
  display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between;
  margin-top:48px;padding-top:20px;
  border-top:1px solid var(--hair-light);
}
.footer__legal{font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;color:rgba(244,239,230,.5)}

.to-top{
  position:fixed;right:16px;bottom:16px;z-index:70;
  padding:10px 14px;
  background:var(--ink);color:var(--cream);
  border:1px solid rgba(244,239,230,.32);
  font-size:12px;letter-spacing:.12em;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity var(--ease),transform var(--ease),visibility var(--ease),background-color var(--ease),border-color var(--ease);
}
.to-top[data-visible]{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--ag-red);border-color:var(--ag-red);color:#fff}
@media (min-width:1024px){.to-top{right:32px;bottom:32px}}

/* ---------- 10. 容器与章节 ---------- */
.wrap{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.wrap{padding:0 48px}}
@media (min-width:1200px){.wrap{padding:0 72px}}

.section{padding:64px 0;border-top:1px solid var(--hair)}
.section:first-of-type{border-top:0}
.section--tight{padding:32px 0}
.section--flush{padding:0}
.section--ink{background:var(--ink);color:rgba(244,239,230,.78)}
.section--ink .lede,.section--ink .prose{color:rgba(244,239,230,.78)}
.rule{height:1px;background:var(--hair);border:0;margin:0}

/* ---------- 11. 排版组件 ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  margin-bottom:14px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.18em;
  text-transform:uppercase;color:var(--gray);
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--ag-red)}
.eyebrow--blue::before{background:var(--cobalt)}

.display{
  font-family:var(--font-display);font-weight:400;
  font-size:clamp(44px,9vw,120px);
  line-height:.94;letter-spacing:-.02em;
}
.display--md{font-size:clamp(32px,5vw,64px)}
.display--sm{font-size:clamp(24px,3.2vw,42px);line-height:1.05}

.lede{font-size:clamp(17px,1.6vw,20px);line-height:1.85;color:var(--ink-soft);max-width:60ch}
.prose{max-width:68ch}
.prose p+p{margin-top:18px}
.prose h2{
  margin:40px 0 12px;
  font-family:var(--font-display);font-weight:600;
  font-size:clamp(22px,2.4vw,30px);line-height:1.25;letter-spacing:-.01em;
}
.prose h3{margin:28px 0 10px;font-size:18px;letter-spacing:.02em}
.mono{font-family:var(--font-mono);letter-spacing:.06em;font-variant-numeric:tabular-nums}

/* ---------- 12. 网格 ---------- */
.grid{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:24px}
.span-3{grid-column:span 3}
.span-4{grid-column:span 4}
.span-5{grid-column:span 5}
.span-6{grid-column:span 6}
.span-7{grid-column:span 7}
.span-8{grid-column:span 8}
.span-9{grid-column:span 9}
.span-12{grid-column:span 12}
@media (max-width:1023px){
  .span-3,.span-4,.span-5{grid-column:span 6}
  .span-7,.span-8,.span-9{grid-column:span 12}
}
@media (max-width:767px){
  .grid{gap:16px}
  .span-3,.span-4,.span-5,.span-6,.span-7,.span-8,.span-9{grid-column:span 12}
}

/* ---------- 13. 面板与角标 ---------- */
.panel{position:relative;padding:28px;background:var(--panel)}
.panel--tall{padding:40px}
.panel--red{border-left:4px solid var(--ag-red)}
.panel--blue{border-left:4px solid var(--cobalt)}
.panel--ink{background:var(--ink);color:rgba(244,239,230,.8)}
.panel--ink .lede,.panel--ink .panel__meta{color:rgba(244,239,230,.72)}
.panel__meta{margin-top:12px;font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;color:var(--gray)}

.corner::before,.corner::after{content:"";position:absolute;width:14px;height:14px;pointer-events:none}
.corner::before{top:8px;left:8px;border-top:1px solid var(--hair-strong);border-left:1px solid var(--hair-strong)}
.corner::after{bottom:8px;right:8px;border-bottom:1px solid var(--hair-strong);border-right:1px solid var(--hair-strong)}

/* ---------- 14. 标签、提示与指标 ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 9px;
  border:1px solid var(--hair-strong);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;
  color:var(--ink-soft);
}
.tag--red{border-color:var(--ag-red);color:var(--crimson)}
.tag--blue{border-color:var(--cobalt);color:var(--cobalt)}
.tag--live{border-color:var(--cyan);color:var(--cyan-deep)}

.callout{
  padding:20px 24px;
  border-left:4px solid var(--gold);
  background:rgba(185,138,46,.09);
  font-size:15px;line-height:1.85;color:var(--ink-soft);
}
.callout--red{border-color:var(--ag-red);background:rgba(217,58,43,.08)}
.callout--blue{border-color:var(--cobalt);background:rgba(29,78,216,.08)}

.stat{display:block}
.stat__num{display:block;font-family:var(--font-mono);font-size:28px;font-weight:600;letter-spacing:.06em;line-height:1.2}
.stat__label{margin-top:6px;display:block;font-family:var(--font-mono);font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--gray)}
.stat--red .stat__num{color:var(--ag-red)}
.stat--blue .stat__num{color:var(--cobalt)}
.stat--cyan .stat__num{color:var(--cyan-deep)}

/* ---------- 15. 赛季轨道 ---------- */
.season-track{position:relative;padding-left:32px}
.season-track::before{
  content:"";position:absolute;left:8px;top:6px;bottom:6px;width:1px;
  background:linear-gradient(180deg,var(--ag-red),rgba(28,23,20,.35) 50%,var(--cobalt));
}
.season-node{position:relative;padding:8px 0 28px}
.season-node::before{
  content:"";position:absolute;left:-28px;top:14px;
  width:9px;height:9px;border-radius:50%;
  background:var(--cream);border:2px solid var(--ag-red);
}
.season-node--blue::before{border-color:var(--cobalt)}

/* ---------- 16. 数据表 ---------- */
.table-scroll{overflow-x:auto;border-top:1px solid var(--hair)}
.data-table{min-width:640px;font-size:14px}
.data-table th,.data-table td{padding:12px 14px;text-align:left;vertical-align:top;border-bottom:1px solid var(--hair)}
.data-table thead th{
  position:sticky;top:0;
  background:var(--panel);
  font-family:var(--font-mono);font-size:11px;font-weight:600;
  letter-spacing:.18em;text-transform:uppercase;color:var(--gray);
}
.data-table td.num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:.04em}
.data-table tbody tr{transition:background-color var(--ease)}
.data-table tbody tr:hover{background:rgba(29,78,216,.06)}

/* ---------- 17. 面包屑 ---------- */
.breadcrumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding:14px 0;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;color:var(--gray);
}
.breadcrumbs li{display:flex;align-items:center;gap:8px}
.breadcrumbs li+li::before{content:"/";color:var(--hair-strong)}
.breadcrumbs a:hover{color:var(--cobalt)}

/* ---------- 18. 图片与媒体容器 ---------- */
.media{
  position:relative;overflow:hidden;
  background:var(--panel);
  border:1px solid var(--hair);
  aspect-ratio:16/9;
}
.media::before{
  content:"";position:absolute;inset:0;z-index:0;
  background-image:
    linear-gradient(90deg,rgba(28,23,20,.07) 1px,transparent 1px),
    linear-gradient(0deg,rgba(28,23,20,.07) 1px,transparent 1px);
  background-size:32px 32px,32px 32px;
}
.media::after{
  content:"";position:absolute;left:12%;right:12%;bottom:0;height:58%;z-index:1;
  background:linear-gradient(180deg,rgba(217,58,43,.16),rgba(29,78,216,.2));
  clip-path:polygon(0 100%,18% 0,50% 46%,74% 8%,100% 100%);
}
.media img{position:absolute;inset:0;z-index:2;width:100%;height:100%;object-fit:cover}
.media--16x9{aspect-ratio:16/9}
.media--4x3{aspect-ratio:4/3}
.media--1x1{aspect-ratio:1/1}
.media--21x9{aspect-ratio:21/9}
.media--blue::after{background:linear-gradient(180deg,rgba(127,182,232,.22),rgba(29,78,216,.26))}
.media--red::after{background:linear-gradient(180deg,rgba(217,58,43,.24),rgba(140,31,24,.22))}

/* ---------- 19. 显现与降级 ---------- */
.has-js [data-reveal]{
  opacity:0;transform:translateY(14px);
  transition:opacity 320ms ease,transform 320ms ease;
}
.has-js [data-reveal].is-visible{opacity:1;transform:none}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms!important;
    animation-iteration-count:1!important;
    transition-duration:.001ms!important;
  }
  .has-js [data-reveal]{opacity:1;transform:none}
  .to-top{transform:none}
}