/* ==========================================================================
   红蓝电竞 CN — 共享样式 /assets/site.css
   指挥台深蓝墨基底 · 蓝图网格 · 比分牌秩序 · 红蓝双轴强调
   ========================================================================== */

/* ---------- 1. Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%}
body,h1,h2,h3,h4,h5,p,figure,blockquote,dl,dd{margin:0}
ul,ol{list-style:none;padding:0;margin:0}
img,svg,video{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;padding:0;cursor:pointer}
table{border-collapse:collapse;border-spacing:0;width:100%}
hr{border:0;border-top:1px solid var(--line);margin:0}
address{font-style:normal}

/* ---------- 2. Tokens ---------- */
:root{
  --ink:#0B1220;
  --panel:#14243D;
  --line:#2A3B57;
  --text:#C7D2E0;
  --cyan:#35E0D0;
  --red:#F03A2E;
  --red-deep:#7A1B15;
  --ivory:#F4F1EA;
  --amber:#FFB020;
  --mute:#7E8CA3;

  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC","Helvetica Neue",Arial,sans-serif;
  --font-serif:"Songti SC","SimSun","Noto Serif CJK SC",Georgia,"Times New Roman",serif;
  --font-mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono","Courier New",monospace;

  --gutter:24px;
  --rail:88px;
  --frame:2px;
  --shadow-hard:6px 6px 0 0 rgba(10,18,32,.85);
  --ease:cubic-bezier(.2,.7,.2,1);

  --s-1:12px; --s0:14px; --s1:16px; --s2:20px; --s3:24px;
  --s4:32px; --s5:48px; --s6:72px;
}

/* ---------- 3. Base ---------- */
body{
  min-height:100vh;
  background-color:var(--ink);
  background-image:
    linear-gradient(to right, rgba(42,59,87,.34) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(42,59,87,.34) 1px, transparent 1px);
  background-size:24px 24px;
  background-position:-1px -1px;
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.7;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
::selection{background:var(--red);color:var(--ivory)}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px}
[data-counting]{color:var(--cyan)}

h1,h2,h3,h4{color:var(--ivory);font-weight:700;line-height:1.3}
p{text-align:left}
strong{color:var(--ivory);font-weight:600}
em{color:var(--cyan);font-style:normal}

.skip-link{
  position:absolute;top:0;left:-9999px;z-index:120;
  background:var(--cyan);color:var(--ink);
  padding:10px 18px;font-size:14px;font-weight:600;letter-spacing:.04em;
}
.skip-link:focus{left:8px;top:8px}

.read-progress{
  position:fixed;top:0;left:0;z-index:110;
  height:3px;width:0;
  background:var(--cyan);
  pointer-events:none;
}

/* ---------- 4. Header ---------- */
.site-header{
  position:relative;
  z-index:40;
  background:var(--ink);
  border-bottom:var(--frame) solid var(--line);
}
.hud-bar{
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;
  padding:8px var(--gutter);
  background:var(--panel);
  border-bottom:1px solid var(--line);
}
.hud-text{
  display:flex;align-items:center;gap:10px;
  font-size:13px;line-height:1.5;color:var(--mute);letter-spacing:.02em;
}
.hud-mark{
  flex:none;display:block;width:8px;height:8px;background:var(--red);
}
.hud-cta{
  flex:none;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;
  color:var(--cyan);
  border:1px solid var(--cyan);
  padding:3px 10px;
  white-space:nowrap;
  transition:background-color .15s var(--ease),color .15s var(--ease);
}
.hud-cta:hover{background:var(--cyan);color:var(--ink)}

.masthead{
  display:grid;
  grid-template-columns:minmax(0,1fr) auto auto;
  align-items:center;
  gap:24px;
  padding:22px var(--gutter) 20px;
  border-bottom:1px solid var(--line);
}
.brand{display:block;min-width:0}
.brand-name{
  display:block;
  font-size:clamp(28px,4.6vw,46px);
  font-weight:700;
  line-height:1;
  letter-spacing:-.02em;
  color:var(--ivory);
  font-stretch:condensed;
}
.brand-sub{
  display:block;margin-top:9px;
  font-family:var(--font-mono);
  font-size:12px;letter-spacing:.14em;color:var(--mute);
}
.masthead-meta{display:flex;gap:18px;align-items:center}
.coord{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;
  color:var(--mute);white-space:nowrap;
}

.nav-toggle{
  display:none;align-items:center;gap:10px;
  padding:10px 14px;
  border:1px solid var(--line);
  background:var(--panel);
  color:var(--ivory);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.12em;
  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:2px;background:currentColor;
}
.nav-toggle-bars::before,
.nav-toggle-bars::after{
  content:"";position:absolute;left:0;width:16px;height:2px;background:currentColor;
  transition:transform .2s var(--ease),opacity .2s var(--ease);
}
.nav-toggle-bars::before{top:-5px}
.nav-toggle-bars::after{top:5px}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars{background:transparent}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::before{transform:translateY(5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::after{transform:translateY(-5px) rotate(-45deg)}

.site-nav{border-bottom:0}
.site-nav-list{display:flex;flex-wrap:wrap;align-items:stretch}
.site-nav-item{display:flex;flex:1 1 140px;min-width:0}
.site-nav-link{
  display:flex;flex:1;align-items:baseline;gap:8px;
  padding:15px 18px 14px;
  border-left:1px solid var(--line);
  border-top:3px solid transparent;
  font-size:15px;letter-spacing:.02em;color:var(--text);
  transition:background-color .15s var(--ease),color .15s var(--ease),border-color .15s var(--ease);
}
.site-nav-item:first-child .site-nav-link{border-left:0}
.site-nav-link:hover{background:var(--panel);border-top-color:var(--red)}
.site-nav-link[aria-current="page"]{
  background:var(--ivory);color:var(--ink);border-top-color:var(--red);font-weight:600;
}
.nav-index{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.06em;
  color:var(--mute);transition:color .15s var(--ease);
}
.site-nav-link:hover .nav-index{color:var(--cyan)}
.site-nav-link[aria-current="page"] .nav-index{color:var(--red)}

/* ---------- 5. Footer ---------- */
.site-footer{
  margin-top:88px;
  border-top:var(--frame) solid var(--line);
  background:var(--ink);
}
.footer-grid{
  width:100%;max-width:1408px;margin:0 auto;
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.4fr;
  gap:44px 32px;
  padding:56px var(--gutter) 40px;
}
.footer-brand{min-width:0}
.footer-logo{
  font-size:clamp(22px,2.4vw,28px);font-weight:700;line-height:1.1;
  letter-spacing:-.02em;color:var(--ivory);font-stretch:condensed;
}
.footer-tagline{
  margin-top:12px;max-width:34ch;
  font-size:13px;line-height:1.75;color:var(--mute);
}
.footer-domain{
  margin-top:14px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;color:var(--cyan);
}
.footer-col{min-width:0}
.footer-col-title{
  margin-bottom:16px;padding-bottom:10px;
  border-bottom:1px solid var(--line);
  font-family:var(--font-serif);
  font-size:18px;font-weight:700;color:var(--ivory);letter-spacing:.02em;
}
.footer-list{display:grid;gap:10px}
.footer-link{
  display:inline-flex;align-items:center;gap:9px;
  font-size:14px;color:var(--text);
  transition:color .15s var(--ease);
}
.footer-link::before{
  content:"";flex:none;display:block;width:6px;height:6px;background:var(--line);
  transition:background-color .15s var(--ease);
}
.footer-link:hover{color:var(--cyan)}
.footer-link:hover::before{background:var(--cyan)}

.footer-contact{display:grid;gap:12px}
.contact-line{
  display:flex;align-items:flex-start;justify-content:space-between;gap:12px;
  font-size:13px;
}
.contact-value{
  font-family:var(--font-mono);font-size:13px;line-height:1.6;
  color:var(--text);word-break:break-all;
}
.contact-line--text .contact-value{font-family:var(--font-sans);color:var(--mute)}
.copy-btn{
  flex:none;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;
  color:var(--mute);border:1px solid var(--line);padding:2px 9px;
  transition:color .15s var(--ease),border-color .15s var(--ease),background-color .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{
  width:100%;max-width:1408px;margin:0 auto;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:10px 24px;
  padding:18px var(--gutter) 30px;
  border-top:1px solid var(--line);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.04em;color:var(--mute);
}
.footer-note,.footer-legal{margin:0;font-size:12px}

/* ---------- 6. Layout helpers ---------- */
.page-shell{width:100%;max-width:1408px;margin:0 auto;padding:0 var(--gutter)}
.page-main{padding-bottom:72px}
.section{padding:56px 0;border-top:1px solid var(--line)}
.section--plain{border-top:0;padding-top:24px}
.section__head{
  display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;
  gap:12px 32px;
  padding-bottom:14px;margin-bottom:28px;
  border-bottom:1px solid var(--line);
}
.section__kicker{
  display:block;margin-bottom:8px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.12em;
  text-transform:uppercase;color:var(--cyan);
}
.section__title{
  font-family:var(--font-serif);
  font-size:clamp(22px,2.6vw,32px);font-weight:700;line-height:1.3;color:var(--ivory);
}
.section__note{max-width:46ch;font-size:13px;line-height:1.7;color:var(--mute)}

.grid{display:grid;gap:24px}
.grid--12{grid-template-columns:repeat(12,minmax(0,1fr))}
.grid--12 > *{grid-column:span 6;min-width:0}
.c-3{grid-column:span 3}
.c-4{grid-column:span 4}
.c-6{grid-column:span 6}
.c-8{grid-column:span 8}
.c-12{grid-column:span 12}

.stack{display:grid;gap:var(--gap,16px)}
.cluster{display:flex;flex-wrap:wrap;align-items:center;gap:12px}
.divider{height:1px;background:var(--line);border:0}

/* ---------- 7. Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:9px;
  padding:11px 20px;
  border:2px solid var(--line);
  background:var(--panel);
  color:var(--ivory);
  font-size:14px;letter-spacing:.04em;line-height:1.3;
  transition:background-color .15s var(--ease),color .15s var(--ease),border-color .15s var(--ease),box-shadow .15s var(--ease);
}
.btn::before{
  content:"";flex:none;display:block;width:7px;height:7px;
  background:currentColor;opacity:.45;
  transition:opacity .15s var(--ease);
}
.btn:hover{border-color:var(--cyan);color:var(--cyan)}
.btn:hover::before{opacity:1}
.btn--primary{
  background:var(--red);border-color:var(--red);color:var(--ivory);font-weight:600;
}
.btn--primary:hover{background:var(--red-deep);border-color:var(--red-deep);color:var(--ivory)}
.btn--ghost{background:transparent}
.btn--ivory{background:var(--ivory);border-color:var(--ivory);color:var(--ink)}
.btn--ivory:hover{background:var(--cyan);border-color:var(--cyan);color:var(--ink)}

/* ---------- 8. Breadcrumb ---------- */
.breadcrumb{padding:14px 0 0}
.breadcrumb__list{
  display:flex;flex-wrap:wrap;gap:8px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;color:var(--mute);
}
.breadcrumb__item{display:flex;align-items:center;gap:8px}
.breadcrumb__item + .breadcrumb__item::before{content:"/";color:var(--line)}
.breadcrumb__item a{color:var(--mute);transition:color .15s var(--ease)}
.breadcrumb__item a:hover{color:var(--cyan)}

/* ---------- 9. Panels / scoreboard / stats ---------- */
.panel{background:var(--panel);border:1px solid var(--line)}
.panel--float{box-shadow:var(--shadow-hard)}
.panel--ivory{background:var(--ivory);border-color:var(--ivory);color:var(--ink)}
.panel--ivory .panel__title,.panel--ivory .stat__value{color:var(--ink)}
.panel--ivory .panel__head{border-bottom-color:rgba(11,18,32,.18)}
.panel--flush .panel__body{padding:0}
.panel__head{
  display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;
  gap:10px 20px;
  padding:14px 16px;
  border-bottom:1px solid var(--line);
}
.panel__title{
  font-family:var(--font-serif);font-size:20px;font-weight:700;color:var(--ivory);
}
.panel__body{padding:18px 16px}

.scoreboard{
  display:grid;
  background:var(--panel);
  border:2px solid var(--line);
  box-shadow:var(--shadow-hard);
}
.scoreboard__top{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:5px 12px;
  background:var(--red);color:var(--ivory);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;
}
.scoreboard__body{
  display:flex;flex-wrap:wrap;align-items:flex-end;gap:8px 16px;
  padding:18px 16px 20px;
}
.scoreboard__num{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  font-size:clamp(32px,4vw,48px);font-weight:700;line-height:1;
  letter-spacing:-.02em;color:var(--ivory);
}
.scoreboard__label{
  font-size:12px;letter-spacing:.08em;color:var(--mute);
}

.stat{padding:6px 0 6px 14px;border-left:2px solid var(--red)}
.stat__value{
  font-family:var(--font-mono);font-variant-numeric:tabular-nums;
  font-size:28px;font-weight:700;line-height:1.1;color:var(--ivory);
}
.stat__label{font-size:12px;letter-spacing:.06em;color:var(--mute)}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 9px;
  border:1px solid var(--line);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;
  color:var(--mute);white-space:nowrap;
}
.tag--live{border-color:var(--red);color:var(--red)}
.tag--warn{border-color:var(--amber);color:var(--amber)}
.tag--ok{border-color:var(--cyan);color:var(--cyan)}
.tag--solid{background:var(--red);border-color:var(--red);color:var(--ivory)}

/* ---------- 10. Table ---------- */
.table-scroll{
  overflow-x:auto;
  border:1px solid var(--line);
  background:var(--panel);
  -webkit-overflow-scrolling:touch;
}
.data-table{min-width:640px;font-size:14px;line-height:1.5}
.data-table caption{
  padding:12px 14px;text-align:left;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;color:var(--mute);
}
.data-table th,.data-table td{
  padding:11px 14px;
  border-bottom:1px solid var(--line);
  text-align:left;vertical-align:middle;
}
.data-table thead th{
  position:sticky;top:0;z-index:1;
  background:var(--sky,#0F1C31);
  color:var(--cyan);
  font-family:var(--font-mono);font-size:12px;font-weight:500;
  letter-spacing:.08em;white-space:nowrap;
}
.data-table tbody tr{transition:background-color .15s var(--ease)}
.data-table tbody tr:hover{background:rgba(53,224,208,.07)}
.data-table tbody tr:last-child td{border-bottom:0}
.data-table .num{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  text-align:right;color:var(--ivory);
}

/* ---------- 11. Media ---------- */
.media{
  position:relative;overflow:hidden;
  background:var(--panel);
  border:1px solid var(--line);
}
.media--16x9{aspect-ratio:16/9}
.media--4x3{aspect-ratio:4/3}
.media--1x1{aspect-ratio:1/1}
.media--3x4{aspect-ratio:3/4}
.media--cut{clip-path:polygon(0 0,100% 0,100% 88%,0 100%)}
.media img{
  width:100%;height:100%;object-fit:cover;
  filter:saturate(.86) contrast(1.1) brightness(.94);
}
.media::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(0deg,rgba(244,241,234,.05) 0 1px,transparent 1px 3px);
  mix-blend-mode:overlay;
}
.media__cap{
  position:absolute;left:0;right:0;bottom:0;z-index:2;
  padding:10px 12px;
  background:rgba(11,18,32,.78);
  font-size:12px;line-height:1.6;letter-spacing:.04em;color:var(--text);
}

/* ---------- 12. Prose ---------- */
.prose{max-width:68ch;font-size:16px;line-height:1.8}
.prose > * + *{margin-top:1em}
.prose h2,.prose h3{margin-top:2em;font-family:var(--font-serif);font-size:22px}
.prose ul{display:grid;gap:.5em}
.prose li{position:relative;padding-left:20px}
.prose li::before{
  content:"";position:absolute;left:0;top:.78em;
  width:9px;height:1px;background:var(--cyan);
}
.prose a{color:var(--cyan);text-decoration:underline;text-underline-offset:3px}
.prose blockquote{
  padding:16px 18px;
  border-left:3px solid var(--red);
  background:var(--panel);
  font-family:var(--font-serif);font-size:17px;color:var(--ivory);
}
.prose hr{margin:2em 0}

/* ---------- 13. Timeline ---------- */
.timeline{position:relative;padding-left:26px}
.timeline::before{
  content:"";position:absolute;left:5px;top:8px;bottom:8px;width:1px;background:var(--line);
}
.timeline__item{position:relative;padding-bottom:24px}
.timeline__item:last-child{padding-bottom:0}
.timeline__node{
  position:absolute;left:-26px;top:7px;
  width:11px;height:11px;
  background:var(--ink);border:2px solid var(--line);
}
.timeline__item[data-state="current"] .timeline__node{
  border-color:var(--cyan);background:var(--cyan);
}
.timeline__time{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;color:var(--cyan);
}
.timeline__title{margin:3px 0 5px;font-size:16px;color:var(--ivory)}
.timeline__body{font-size:14px;line-height:1.7;color:var(--mute)}

/* ---------- 14. Accordion ---------- */
.accordion{border-top:1px solid var(--line)}
.accordion__item{border-bottom:1px solid var(--line)}
.accordion__trigger{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  width:100%;padding:16px 2px;
  text-align:left;font-size:16px;line-height:1.5;color:var(--ivory);
  transition:color .15s var(--ease);
}
.accordion__trigger::after{
  content:"+";flex:none;
  font-family:var(--font-mono);font-size:18px;line-height:1;color:var(--cyan);
}
.accordion__trigger:hover{color:var(--cyan)}
.accordion__trigger[aria-expanded="true"]{color:var(--cyan)}
.accordion__trigger[aria-expanded="true"]::after{content:"–"}
.accordion__panel{
  display:none;
  padding:0 2px 18px;
  font-size:15px;line-height:1.8;color:var(--text);
}
.accordion__panel[data-open]{display:block}

/* ---------- 15. Tabs ---------- */
.tabs__list{display:flex;flex-wrap:wrap;border-bottom:1px solid var(--line)}
.tabs__btn{
  padding:10px 16px;
  border-bottom:3px solid transparent;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;
  color:var(--mute);
  transition:color .15s var(--ease),border-color .15s var(--ease),background-color .15s var(--ease);
}
.tabs__btn:hover{color:var(--cyan);background:var(--panel)}
.tabs__btn[aria-selected="true"]{
  color:var(--ivory);background:var(--panel);border-bottom-color:var(--red);
}
.tabs__panel{display:none;padding-top:20px}
.tabs__panel[data-open]{display:block}

/* ---------- 16. Responsive ---------- */
@media (max-width:1024px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px 28px}
  .grid--12{grid-template-columns:repeat(6,minmax(0,1fr))}
  .grid--12 > *{grid-column:span 6}
  .c-3,.c-4{grid-column:span 3}
  .c-6,.c-8,.c-12{grid-column:span 6}
}

@media (max-width:900px){
  .masthead{grid-template-columns:minmax(0,1fr) auto;gap:16px;padding:18px var(--gutter) 16px}
  .masthead-meta{display:none}
  .nav-toggle{display:inline-flex}
  .brand-sub{letter-spacing:.1em}

  .site-nav{display:none;border-top:1px solid var(--line)}
  .site-nav[data-open]{display:block}
  .site-nav-list{flex-direction:column}
  .site-nav-item{flex:1 1 auto;width:100%}
  .site-nav-link{
    border-left:0;
    border-bottom:1px solid var(--line);
    padding:14px var(--gutter);
    font-size:15px;
  }
  .site-nav-item:first-child .site-nav-link{border-left:0}
  .site-nav-link:hover{background:var(--panel)}
}

@media (max-width:640px){
  :root{--gutter:16px}
  .hud-bar{padding:8px var(--gutter);flex-wrap:wrap;gap:8px}
  .hud-text{font-size:12px}
  .hud-cta{font-size:11px}
  .brand-name{font-size:26px}
  .section{padding:40px 0}
  .section__head{margin-bottom:22px}
  .panel__head,.panel__body{padding-left:14px;padding-right:14px}
  .footer-grid{grid-template-columns:1fr;padding:44px var(--gutter) 32px;gap:32px}
  .footer-bottom{padding:16px var(--gutter) 26px}
  .grid--12{grid-template-columns:minmax(0,1fr)}
  .grid--12 > *{grid-column:auto}
  .c-3,.c-4,.c-6,.c-8,.c-12{grid-column:auto}
}

/* ---------- 17. Motion preferences ---------- */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  html{scroll-behavior:auto}
  .read-progress{transition:none}
}