/* ==========================================================================
   8868皇冠赛事 · 共享样式表 /assets/site.css
   深夜赛场控制室：近黑基底 + 皇冠金描边 + 霓虹青数据高亮
   ========================================================================== */

/* ---------- 1. 设计变量 ---------- */
:root{
  --ink:#06070A;
  --ink-2:#10141A;
  --ink-3:#171C24;
  --gold:#D4AF37;
  --gold-mist:#F0DDA1;
  --cyan:#00E5FF;
  --cyan-mist:#A6F2FF;
  --blood:#8B0000;
  --teal:#0C2A2C;
  --indigo:#1C1038;
  --wine:#3B0E15;
  --paper:#E9EDF2;
  --slate:#98A2AE;

  --line:rgba(212,175,55,.26);
  --line-2:rgba(233,237,242,.10);
  --line-3:rgba(0,229,255,.24);

  --r-sm:8px;
  --r-md:14px;
  --r-lg:22px;
  --r-xl:32px;
  --pill:999px;

  --wrap:1240px;
  --pad:24px;
  --hdr-h:72px;

  --ease:cubic-bezier(.22,.61,.36,1);
  --t:180ms;

  --font-display:"HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --font-body:var(--font-display);
  --font-mono:ui-monospace,"SFMono-Regular","Cascadia Mono",Menlo,Consolas,"Liberation Mono",monospace;
}

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

/* ---------- 3. 基础排版 ---------- */
body{
  background:var(--ink);
  color:var(--paper);
  font-family:var(--font-body);
  font-size:15px;
  line-height:1.75;
  font-weight:400;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  opacity:.5;
  background-image:repeating-linear-gradient(180deg,rgba(233,237,242,.035) 0 1px,transparent 1px 4px);
}
@media (min-width:1024px){
  body{font-size:16px}
}

.display-1{font-family:var(--font-display);font-weight:500;font-size:clamp(34px,7vw,56px);line-height:1.06;letter-spacing:.02em}
.display-2{font-family:var(--font-display);font-weight:500;font-size:clamp(28px,5vw,40px);line-height:1.12;letter-spacing:.02em}
.display-3{font-family:var(--font-display);font-weight:500;font-size:clamp(22px,3.4vw,28px);line-height:1.25;letter-spacing:.02em}
.display-4{font-family:var(--font-display);font-weight:500;font-size:20px;line-height:1.35;letter-spacing:.02em}

.num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:.06em}

.eyebrow{
  font-size:11px;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--slate);
  font-weight:500;
}
.lede{
  font-size:15px;
  line-height:1.7;
  color:var(--slate);
  max-width:34em;
}
@media (min-width:1024px){.lede{font-size:16px}}

/* ---------- 4. 布局容器与节奏 ---------- */
.container{
  position:relative;
  z-index:1;
  width:100%;
  max-width:var(--wrap);
  margin:0 auto;
  padding:0 var(--pad);
}
.section{
  position:relative;
  z-index:1;
  padding:clamp(56px,8vw,110px) 0;
}
.section--tight{padding:clamp(32px,5vw,60px) 0}
.breath{height:clamp(56px,12vw,140px)}

.band{position:relative;z-index:1}
.band--ink{background:var(--ink-2)}
.band--teal{background:linear-gradient(180deg,var(--teal),rgba(12,42,44,.28))}
.band--indigo{background:linear-gradient(180deg,var(--indigo),rgba(28,16,56,.28))}
.band--wine{background:linear-gradient(180deg,var(--wine),rgba(59,14,21,.28))}

.grid{display:grid;gap:24px}
.grid--60-40{grid-template-columns:minmax(0,6fr) minmax(0,4fr)}
.grid--70-30{grid-template-columns:minmax(0,7fr) minmax(0,3fr)}
.grid--cards{grid-template-columns:repeat(auto-fit,minmax(250px,1fr))}
@media (max-width:960px){
  .grid--60-40,.grid--70-30{grid-template-columns:1fr}
}

/* ---------- 5. 章节题头 ---------- */
.chapter-head{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:14px;
  padding-bottom:16px;
  margin-bottom:28px;
  border-bottom:1px solid var(--line-2);
}
.chapter-num{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:46px;
  height:34px;
  padding:0 10px;
  border:1px solid var(--gold);
  border-radius:4px;
  color:var(--gold);
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.1em;
  line-height:1;
}
.chapter-title{
  font-family:var(--font-display);
  font-weight:500;
  font-size:clamp(20px,3vw,28px);
  letter-spacing:.02em;
  line-height:1.2;
}
.chapter-note{
  margin-left:auto;
  font-size:11px;
  letter-spacing:.16em;
  color:var(--slate);
}
@media (max-width:640px){
  .chapter-note{margin-left:0;width:100%}
}

/* ---------- 6. 按钮与链接 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding:12px 24px;
  border:1px solid var(--line);
  border-radius:var(--pill);
  background:transparent;
  color:var(--paper);
  font-family:var(--font-body);
  font-size:14px;
  letter-spacing:.04em;
  line-height:1;
  white-space:nowrap;
  cursor:pointer;
  transition:color var(--t) var(--ease),background-color var(--t) var(--ease),
             border-color var(--t) var(--ease),box-shadow var(--t) var(--ease);
}
.btn:hover{color:var(--gold-mist);border-color:var(--gold)}
.btn--crown{
  background:linear-gradient(180deg,var(--gold),#B9962B);
  border-color:var(--gold);
  color:#0B0C0F;
  font-weight:600;
}
.btn--crown:hover{
  background:linear-gradient(180deg,var(--gold-mist),var(--gold));
  border-color:var(--gold-mist);
  color:#0B0C0F;
  box-shadow:0 0 0 4px rgba(212,175,55,.14);
}
.btn--ghost{border-color:var(--line-3);color:var(--cyan-mist)}
.btn--ghost:hover{background:var(--cyan);border-color:var(--cyan);color:#04181C}
.btn--sm{padding:9px 16px;font-size:13px}

.link-gold{
  display:inline-block;
  font-size:13px;
  letter-spacing:.06em;
  color:var(--paper);
  border-bottom:1px solid rgba(152,162,174,.4);
  transition:color var(--t) var(--ease),border-color var(--t) var(--ease);
}
.link-gold:hover{color:var(--gold);border-bottom-color:var(--gold)}

/* ---------- 7. 跳过链接 ---------- */
.skip-link{
  position:absolute;
  left:16px;
  top:-64px;
  z-index:300;
  padding:11px 20px;
  background:var(--gold);
  color:#0B0C0F;
  font-size:13px;
  letter-spacing:.08em;
  border-radius:0 0 12px 12px;
  transition:top var(--t) var(--ease);
}
.skip-link:focus{top:0}

/* ---------- 8. 状态指示 ---------- */
.cmd-status{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:11px;
  letter-spacing:.16em;
  color:var(--slate);
  white-space:nowrap;
}
.status-dot{
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--cyan);
  box-shadow:0 0 0 3px rgba(0,229,255,.16),0 0 10px rgba(0,229,255,.7);
  flex:0 0 auto;
}
.status-label{display:inline-block}

/* ---------- 9. 命令栏页头 ---------- */
.cmd-bar{
  position:sticky;
  top:0;
  z-index:190;
  background:rgba(6,7,10,.9);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
}
.cmd-bar::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(212,175,55,.55) 18%,rgba(0,229,255,.35) 72%,transparent);
}
.cmd-bar__inner{
  display:flex;
  align-items:center;
  gap:20px;
  width:100%;
  max-width:var(--wrap);
  margin:0 auto;
  padding:0 var(--pad);
  height:var(--hdr-h);
  transition:height var(--t) var(--ease);
}
.cmd-bar.is-condensed .cmd-bar__inner{height:52px}
.cmd-bar.is-condensed .brand__sub{display:none}

.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
}
.brand__mark{
  display:inline-block;
  padding:4px 9px;
  border:1px solid var(--gold);
  border-radius:var(--r-sm);
  color:var(--gold);
  font-family:var(--font-mono);
  font-size:14px;
  letter-spacing:.08em;
  line-height:1.2;
}
.brand__name{
  font-size:15px;
  font-weight:600;
  letter-spacing:.14em;
  color:var(--paper);
}
.brand__sub{
  padding-left:10px;
  border-left:1px solid var(--line-2);
  font-size:11px;
  letter-spacing:.18em;
  color:var(--slate);
}

.cmd-nav{flex:1 1 auto;display:flex;justify-content:center;min-width:0}
.cmd-nav__list{display:flex;align-items:center;gap:4px}
.cmd-nav__item{display:block}
.cmd-nav__link{
  display:block;
  padding:8px 14px;
  border-radius:var(--pill);
  color:var(--slate);
  font-size:12px;
  letter-spacing:.14em;
  line-height:1.4;
  white-space:nowrap;
  transition:color var(--t) var(--ease),background-color var(--t) var(--ease),
             box-shadow var(--t) var(--ease);
}
.cmd-nav__link:hover{color:var(--gold-mist);background:rgba(212,175,55,.08)}
.cmd-nav__link[aria-current="page"]{
  color:var(--gold);
  background:linear-gradient(180deg,rgba(212,175,55,.16),rgba(212,175,55,.06));
  box-shadow:inset 0 0 0 1px rgba(212,175,55,.42);
}

.cmd-bar__aside{
  display:flex;
  align-items:center;
  gap:14px;
  margin-left:auto;
  flex:0 0 auto;
}

.nav-toggle{
  display:none;
  align-items:center;
  gap:8px;
  padding:9px 15px;
  border:1px solid var(--line);
  border-radius:var(--pill);
  color:var(--paper);
  font-size:12px;
  letter-spacing:.14em;
  line-height:1;
  transition:border-color var(--t) var(--ease),color var(--t) var(--ease);
}
.nav-toggle:hover{border-color:var(--gold);color:var(--gold-mist)}
.nav-toggle__bars{
  position:relative;
  display:inline-block;
  width:16px;
  height:9px;
}
.nav-toggle__bars::before,
.nav-toggle__bars::after{
  content:"";
  position:absolute;
  left:0;right:0;
  height:1px;
  background:currentColor;
  transition:transform var(--t) var(--ease);
}
.nav-toggle__bars::before{top:0}
.nav-toggle__bars::after{bottom:0}
.cmd-bar[data-open="true"] .nav-toggle__bars::before{transform:translateY(4px) rotate(45deg)}
.cmd-bar[data-open="true"] .nav-toggle__bars::after{transform:translateY(-4px) rotate(-45deg)}

/* ---------- 10. 移动端导航 ---------- */
@media (max-width:880px){
  :root{--pad:18px}
  body{padding-bottom:92px}

  .cmd-bar__inner{height:60px;gap:12px}
  .cmd-bar.is-condensed .cmd-bar__inner{height:56px}
  .brand__sub{display:none}
  .cmd-status{display:none}
  .nav-toggle{display:inline-flex}

  .cmd-nav{
    position:fixed;
    left:14px;right:14px;bottom:14px;
    z-index:200;
    display:block;
    padding:6px;
    overflow-x:auto;
    overflow-y:hidden;
    background:rgba(16,20,26,.94);
    -webkit-backdrop-filter:blur(16px);
    backdrop-filter:blur(16px);
    border:1px solid var(--line);
    border-radius:var(--pill);
    scrollbar-width:none;
    -webkit-overflow-scrolling:touch;
  }
  .cmd-nav::-webkit-scrollbar{display:none}
  .cmd-nav__list{
    display:flex;
    flex-wrap:nowrap;
    align-items:center;
    gap:4px;
    min-width:max-content;
  }
  .cmd-nav__link{
    padding:9px 15px;
    font-size:12px;
    letter-spacing:.08em;
    border-radius:var(--pill);
  }

  .cmd-bar[data-open="true"]{background:var(--ink)}
  .cmd-bar[data-open="true"] .cmd-nav{
    left:0;right:0;top:0;bottom:0;
    padding:88px 22px 32px;
    border:0;
    border-radius:0;
    background:var(--ink);
    overflow-y:auto;
    overflow-x:hidden;
  }
  .cmd-bar[data-open="true"] .cmd-nav__list{
    flex-direction:column;
    align-items:stretch;
    gap:0;
    min-width:0;
    width:100%;
  }
  .cmd-bar[data-open="true"] .cmd-nav__link{
    display:flex;
    align-items:baseline;
    justify-content:space-between;
    padding:16px 2px;
    font-size:26px;
    letter-spacing:.02em;
    color:var(--paper);
    background:transparent;
    border-radius:0;
    border-bottom:1px solid var(--line-2);
    box-shadow:none;
  }
  .cmd-bar[data-open="true"] .cmd-nav__link[aria-current="page"]{color:var(--gold)}
}

/* ---------- 11. 通用组件 ---------- */
.panel{
  position:relative;
  padding:22px;
  background:var(--ink-2);
  border:1px solid var(--line-2);
  border-radius:var(--r-lg);
}
.panel--gold{border-color:var(--line)}

.pill{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border:1px solid var(--line);
  border-radius:var(--pill);
  background:rgba(212,175,55,.06);
  color:var(--gold-mist);
  font-size:11px;
  letter-spacing:.16em;
  line-height:1.4;
}
.pill--cyan{border-color:var(--line-3);background:rgba(0,229,255,.06);color:var(--cyan-mist)}
.pill--blood{border-color:rgba(139,0,0,.6);background:rgba(139,0,0,.18);color:#F0C9C9}

.fold{
  background:var(--ink-2);
  border:1px solid var(--line-2);
  border-radius:var(--r-lg);
  overflow:hidden;
  transition:border-color var(--t) var(--ease);
}
.fold:hover{border-color:var(--line)}
.fold__head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  width:100%;
  padding:16px 20px;
  color:var(--paper);
  font-size:15px;
  letter-spacing:.02em;
  text-align:left;
}
.fold__head::after{
  content:"+";
  color:var(--gold);
  font-family:var(--font-mono);
  font-size:15px;
  line-height:1;
  transition:color var(--t) var(--ease);
}
.fold[data-open="true"] .fold__head::after{content:"–"}
.fold__body{
  display:none;
  padding:0 20px 20px;
  font-size:14px;
  color:var(--slate);
}
.fold[data-open="true"] .fold__body{display:block}

.rail{
  display:flex;
  gap:14px;
  padding:4px 4px 18px;
  overflow-x:auto;
  scroll-snap-type:x mandatory;
  scrollbar-width:thin;
  -webkit-overflow-scrolling:touch;
}
.rail::-webkit-scrollbar{height:4px}
.rail::-webkit-scrollbar-track{background:rgba(233,237,242,.06);border-radius:99px}
.rail::-webkit-scrollbar-thumb{background:rgba(212,175,55,.5);border-radius:99px}
.rail__item{flex:0 0 min(280px,78vw);scroll-snap-align:start}

.breadcrumb{margin-top:20px}
.breadcrumb__list{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:11px;
  letter-spacing:.16em;
  color:var(--slate);
}
.breadcrumb__list a{color:var(--slate);transition:color var(--t) var(--ease)}
.breadcrumb__list a:hover{color:var(--gold)}
.breadcrumb__sep{color:rgba(152,162,174,.45)}

/* ---------- 12. 图片容器基础规则 ---------- */
.img-frame{
  position:relative;
  overflow:hidden;
  border:1px solid var(--line-2);
  border-radius:var(--r-lg);
  background:linear-gradient(140deg,#0C2A2C,#1C1038 55%,#06070A);
}
.img-frame img{
  width:100%;
  height:100%;
  object-fit:cover;
  filter:saturate(.86) contrast(1.08) brightness(.92);
}
.img-frame::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background-image:repeating-linear-gradient(180deg,rgba(6,7,10,.18) 0 1px,transparent 1px 4px);
}
.img-frame--16x9{aspect-ratio:16/9}
.img-frame--4x5{aspect-ratio:4/5}
.img-frame--3x2{aspect-ratio:3/2}
.img-frame--21x9{aspect-ratio:21/9}
.img-frame__tag{
  position:absolute;
  left:16px;
  bottom:16px;
  z-index:2;
  padding:5px 12px;
  border:1px solid var(--line-3);
  border-radius:var(--pill);
  background:rgba(6,7,10,.72);
  color:var(--cyan-mist);
  font-size:11px;
  letter-spacing:.16em;
}

/* ---------- 13. 页脚 ---------- */
.site-footer{
  position:relative;
  z-index:1;
  margin-top:clamp(48px,8vw,96px);
  background:var(--ink-2);
  border-top:1px solid var(--line);
}
.site-footer::before{
  content:"";
  position:absolute;
  left:0;right:0;top:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(212,175,55,.6) 40%,transparent);
}
.site-footer__inner{
  width:100%;
  max-width:var(--wrap);
  margin:0 auto;
  padding:clamp(40px,6vw,72px) var(--pad) 30px;
}
.site-footer__lead{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  gap:10px 18px;
  padding-bottom:24px;
}
.footer-wordmark{
  font-size:22px;
  font-weight:600;
  letter-spacing:.16em;
  color:var(--paper);
}
.footer-tag{
  font-size:11px;
  letter-spacing:.18em;
  color:var(--slate);
}
.footer-row{
  display:grid;
  grid-template-columns:170px minmax(0,1fr);
  gap:16px 28px;
  padding:22px 0;
  border-top:1px solid var(--line);
}
.footer-row__title{
  font-size:11px;
  font-weight:500;
  letter-spacing:.18em;
  color:var(--gold);
}
.footer-list{
  display:flex;
  flex-wrap:wrap;
  gap:10px 28px;
  align-items:center;
}
.footer-stack{display:flex;flex-direction:column;gap:12px}
.footer-legal{
  font-size:12px;
  letter-spacing:.06em;
  color:var(--slate);
}
.footer-dot{padding:0 8px;color:rgba(152,162,174,.5)}
.footer-facts{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(210px,1fr));
  gap:14px 28px;
}
.footer-facts__item{display:flex;flex-direction:column;gap:4px}
.footer-facts__item dt{
  font-size:11px;
  letter-spacing:.16em;
  color:var(--slate);
}
.footer-facts__item dd{
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.04em;
  color:var(--paper);
  word-break:break-word;
}
.footer-end{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  justify-content:space-between;
  gap:10px 24px;
  padding-top:26px;
  border-top:1px solid var(--line);
}
.footer-end__brand{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.08em;
  color:var(--slate);
}
.footer-end__copy{
  font-size:12px;
  letter-spacing:.08em;
  color:var(--slate);
}
@media (max-width:720px){
  .footer-row{grid-template-columns:1fr;gap:12px}
  .footer-end{flex-direction:column;align-items:flex-start}
}

/* ---------- 14. 滚动进度与显现 ---------- */
.scroll-progress{
  position:fixed;
  top:0;
  left:0;
  width:0;
  height:2px;
  z-index:260;
  pointer-events:none;
  background:linear-gradient(90deg,var(--gold),var(--cyan));
  transition:width 120ms linear;
}
[data-reveal]{
  opacity:0;
  transform:translateY(14px);
  transition:opacity 220ms var(--ease),transform 220ms var(--ease);
}
[data-reveal].is-in{opacity:1;transform:none}

/* ---------- 15. 焦点与可达性 ---------- */
:focus-visible{
  outline:2px solid var(--cyan);
  outline-offset:3px;
  border-radius:4px;
}
a:focus-visible,
button:focus-visible,
.cmd-nav__link:focus-visible,
.nav-toggle:focus-visible,
.btn:focus-visible{
  outline:2px solid var(--cyan);
  outline-offset:2px;
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    transition-duration:.01ms !important;
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
  }
  [data-reveal]{opacity:1;transform:none}
  .scroll-progress{transition:none}
}