/* ============================================================
   小鸟体育赛事 · /assets/site.css
   共享外壳：刊头（header）、号外折页（footer）、基础组件
   ============================================================ */

:root{
  --sand:#F3E8D3;
  --sand-deep:#D9C4A5;
  --orange:#E86A2C;
  --orange-deep:#C8531B;
  --night:#0E1B2B;
  --night-soft:#152A41;
  --jade:#1F6F6B;
  --mint:#35E0C0;
  --dust:#8C8375;
  --glass:rgba(255,255,255,.72);
  --char:#15120E;
  --alert:#B83A2D;
  --line:rgba(14,27,43,.16);
  --line-soft:rgba(14,27,43,.09);
  --paper:#FFFCF5;
  --font-display:'HarmonyOS Sans SC','Source Han Sans SC','Noto Sans SC','PingFang SC',sans-serif;
  --font-body:'Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  --font-mono:'IBM Plex Mono','JetBrains Mono','SFMono-Regular',Consolas,monospace;
  --wrap:1200px;
  --gap:clamp(16px,2.2vw,28px);
  --shadow:0 18px 40px -30px rgba(14,27,43,.55);
  --radius:2px;
}

*,*::before,*::after{box-sizing:border-box}

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

body{
  margin:0;
  font-family:var(--font-body);
  font-size:16px;
  font-weight:400;
  line-height:1.75;
  color:var(--night);
  background-color:var(--sand);
  background-image:repeating-linear-gradient(112deg,rgba(217,196,165,.34) 0 1px,transparent 1px 15px);
  -webkit-font-smoothing:antialiased;
}

img,svg,video{display:block;max-width:100%}
ul,ol{margin:0;padding:0}

h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:800;
  line-height:1.14;
  letter-spacing:-.02em;
  color:var(--char);
  margin:0 0 .6em;
}
h1{font-size:clamp(32px,5vw,56px);font-weight:900;letter-spacing:-.035em}
h2{font-size:clamp(24px,3vw,34px)}
h3{font-size:clamp(18px,2vw,22px)}

p{margin:0 0 1em}

a{color:var(--jade);text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{color:var(--orange-deep)}

::selection{background:var(--orange);color:var(--night)}

:where(a,button,[tabindex]):focus-visible{
  outline:3px solid var(--night);
  outline-offset:3px;
}
.site-footer :where(a,button,[tabindex]):focus-visible{outline-color:var(--mint)}

/* ---------- 结构容器 ---------- */
.wrap{
  width:min(calc(100% - 2rem),var(--wrap));
  margin-inline:auto;
}

.prose-shell{
  max-width:72ch;
  font-size:16.5px;
  line-height:1.78;
}
.prose-shell h2{margin-top:2.2em}
.prose-shell h3{margin-top:1.8em}
.prose-shell ul,.prose-shell ol{margin:0 0 1.2em;padding-left:1.2em}
.prose-shell li{margin-bottom:.4em}

.grid-12{
  display:grid;
  grid-template-columns:repeat(12,minmax(0,1fr));
  gap:var(--gap);
}
.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}

/* ---------- 跳过链接 ---------- */
.skip-link{
  position:absolute;
  left:50%;
  top:-100px;
  transform:translateX(-50%);
  z-index:120;
  padding:10px 18px;
  background:var(--night);
  color:var(--sand);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.12em;
  text-decoration:none;
  border:1px solid var(--mint);
}
.skip-link:focus{top:8px;color:var(--mint)}

/* ---------- 滚动进度 ---------- */
.scroll-progress{
  position:fixed;
  inset:0 0 auto 0;
  height:3px;
  z-index:90;
  background:rgba(14,27,43,.12);
  pointer-events:none;
}
.scroll-progress-bar{
  display:block;
  height:100%;
  width:100%;
  background:linear-gradient(90deg,var(--orange) 0%,var(--orange) 55%,var(--mint) 100%);
  transform:scaleX(0);
  transform-origin:0 50%;
}

/* ---------- 头部：信息窄条 ---------- */
.site-header{
  position:relative;
  z-index:40;
  border-bottom:1px solid var(--line);
  background:linear-gradient(180deg,rgba(243,232,211,.97),rgba(243,232,211,.88));
}

.masthead-bar{
  background:var(--night);
  color:var(--sand);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.07em;
}
.bar-inner{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:6px 20px;
  padding:7px 0;
}
.bar-ticker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin:0;
  color:var(--mint);
  text-transform:uppercase;
  letter-spacing:.14em;
}
.bar-dot{
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--orange);
  box-shadow:0 0 0 3px rgba(232,106,44,.24);
}
.bar-note{margin:0;color:#CBB99F}
.bar-meta{margin:0;color:var(--sand);opacity:.82}

/* ---------- 头部：居中刊头 ---------- */
.masthead{
  position:relative;
  padding:clamp(18px,3vw,34px) 0 clamp(14px,2vw,26px);
  overflow:hidden;
}
.masthead::before{
  content:"";
  position:absolute;
  inset:auto -6% -70% 52%;
  height:220px;
  background:radial-gradient(62% 100% at 50% 0,rgba(232,106,44,.2),transparent 72%);
  pointer-events:none;
}
.masthead-inner{
  position:relative;
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:clamp(12px,2vw,24px);
}

.masthead-issue{
  grid-column:1;
  justify-self:start;
  padding-left:10px;
  border-left:3px solid var(--orange);
}
.issue-kicker{
  margin:0;
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--dust);
}
.issue-meta{
  margin:2px 0 0;
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.04em;
  color:var(--night);
}

.masthead-brand{
  grid-column:2;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:8px;
  text-align:center;
  text-decoration:none;
  color:inherit;
}
.masthead-brand:hover{color:inherit}
.brand-mark{
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:500;
  letter-spacing:.34em;
  text-transform:uppercase;
  color:var(--orange);
}
.brand-name{
  font-family:var(--font-display);
  font-weight:900;
  font-size:clamp(30px,4.6vw,58px);
  line-height:.98;
  letter-spacing:-.04em;
  color:var(--char);
}
.brand-tagline{
  font-size:13px;
  line-height:1.6;
  letter-spacing:.02em;
  color:var(--dust);
  max-width:36ch;
}

.masthead-actions{grid-column:3;justify-self:end}

/* ---------- 头部：横向栏目索引带 ---------- */
.masthead-navwrap{
  position:relative;
  z-index:6;
  background:var(--glass);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.nav-inner{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:12px;
  min-height:52px;
}
.nav-index{
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  list-style:none;
  margin:0;
  padding:0;
}
.nav-item{list-style:none}
.nav-link{
  display:inline-flex;
  align-items:baseline;
  gap:7px;
  padding:14px 18px;
  font-family:var(--font-display);
  font-weight:700;
  font-size:15px;
  letter-spacing:-.01em;
  color:var(--night);
  text-decoration:none;
  border-bottom:3px solid transparent;
  transition:color .18s ease,border-color .18s ease,background-color .18s ease;
}
.nav-num{
  font-family:var(--font-mono);
  font-size:10px;
  font-weight:500;
  letter-spacing:.12em;
  color:var(--dust);
}
.nav-link:hover{color:var(--jade);border-bottom-color:var(--orange)}
.nav-link[aria-current="page"]{
  color:var(--char);
  background:rgba(232,106,44,.1);
  border-bottom-color:var(--orange);
}
.nav-link[aria-current="page"] .nav-num{color:var(--orange-deep)}

.nav-toggle{
  display:none;
  align-items:center;
  gap:9px;
  padding:9px 14px 9px 12px;
  background:var(--night);
  color:var(--sand);
  border:1px solid var(--night);
  border-radius:var(--radius);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.16em;
  text-transform:uppercase;
  cursor:pointer;
}
.nav-toggle:hover{background:var(--night-soft)}
.nav-toggle-icon{
  display:inline-flex;
  flex-direction:column;
  gap:3px;
  width:14px;
}
.nav-toggle-bar{
  display:block;
  width:100%;
  height:2px;
  background:var(--mint);
  transition:transform .2s ease;
}
.nav-toggle-label{line-height:1}
.site-header[data-open="true"] .nav-toggle-bar:nth-child(2){transform:scaleX(.55);transform-origin:0 50%}

/* ---------- 通用按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 20px;
  font-family:var(--font-display);
  font-size:14px;
  font-weight:800;
  letter-spacing:.01em;
  line-height:1.2;
  text-decoration:none;
  border:1px solid transparent;
  border-radius:var(--radius);
  cursor:pointer;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease;
}
.btn--primary{
  background:var(--orange);
  color:var(--night);
  box-shadow:0 10px 0 -6px rgba(232,106,44,.35);
}
.btn--primary:hover{background:#F0783C;color:var(--night);transform:translateY(-1px)}
.btn--ghost{
  background:transparent;
  color:var(--night);
  border-color:var(--line);
}
.btn--ghost:hover{border-color:var(--jade);color:var(--jade)}
.masthead-cta{white-space:nowrap}

/* ---------- 面包屑 ---------- */
.crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:6px;
  padding:18px 0 8px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.04em;
  color:var(--dust);
}
.crumbs a{color:var(--jade);text-decoration:none}
.crumbs a:hover{color:var(--orange-deep);text-decoration:underline}
.crumbs-sep{color:var(--sand-deep)}

/* ---------- 章节索引带 ---------- */
.section-band{
  background:var(--glass);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.band-inner{
  display:flex;
  align-items:stretch;
  gap:2px;
  overflow-x:auto;
  scrollbar-width:thin;
  -webkit-overflow-scrolling:touch;
}
.band-link{
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:12px 16px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.06em;
  color:var(--night);
  text-decoration:none;
  white-space:nowrap;
  border-bottom:2px solid transparent;
}
.band-link:hover{color:var(--jade);border-bottom-color:var(--orange)}
.band-link[aria-current="true"],
.band-link.is-active{
  color:var(--char);
  background:rgba(232,106,44,.1);
  border-bottom-color:var(--orange);
}

/* ---------- 卡片 / 元数据 / 状态 ---------- */
.card{
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:clamp(16px,2vw,24px);
  box-shadow:var(--shadow);
}
.card--glass{
  background:var(--glass);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-color:rgba(217,196,165,.9);
}
.card-kicker{
  margin:0 0 8px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--jade);
}
.card-title{margin:0 0 .5em;font-size:clamp(18px,2vw,22px)}
.card-body{font-size:15px;line-height:1.75}
.card-body p:last-child{margin-bottom:0}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  margin:0 0 12px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.24em;
  text-transform:uppercase;
  color:var(--orange);
}
.eyebrow::before{
  content:"";
  width:28px;
  height:2px;
  background:var(--orange);
}
.meta-mono{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.06em;
  color:var(--dust);
}
.tag{
  display:inline-block;
  padding:2px 8px;
  font-family:var(--font-mono);
  font-size:10.5px;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--jade);
  border:1px solid rgba(31,111,107,.4);
  background:rgba(31,111,107,.08);
}

.status-pill{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:3px 10px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.08em;
  border:1px solid var(--line);
  border-radius:999px;
  background:rgba(255,255,255,.6);
  color:var(--night);
  text-transform:uppercase;
}
.status-pill--live{background:var(--night);color:var(--mint);border-color:var(--night)}
.status-pill--change{background:rgba(232,106,44,.16);border-color:rgba(232,106,44,.5);color:#8A3A12}
.status-pill--warn{background:rgba(184,58,45,.12);border-color:rgba(184,58,45,.45);color:var(--alert)}

.chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:7px 13px;
  font-family:var(--font-display);
  font-size:13px;
  font-weight:600;
  color:var(--night);
  background:rgba(255,255,255,.55);
  border:1px solid var(--line);
  border-radius:999px;
  text-decoration:none;
  cursor:pointer;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease;
}
.chip:hover{border-color:var(--jade);color:var(--jade)}
.chip[aria-pressed="true"],
.chip.is-active{
  background:var(--night);
  color:var(--sand);
  border-color:var(--night);
}

/* ---------- 响应式图片容器（页面阶段放置 img） ---------- */
.media-frame{
  position:relative;
  overflow:hidden;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:linear-gradient(135deg,var(--sand-deep),#C9B394 62%,#B79C79);
}
.media-frame::after{
  content:"";
  position:absolute;
  inset:0;
  background:repeating-linear-gradient(135deg,rgba(14,27,43,.1) 0 2px,transparent 2px 16px);
  pointer-events:none;
}
.media-frame > img,
.media-frame > picture > img,
.media-frame > .media-fill{
  width:100%;
  height:100%;
  object-fit:cover;
}
.media-frame--wide{aspect-ratio:16/9}
.media-frame--tall{aspect-ratio:3/4}
.media-frame--square{aspect-ratio:1/1}

/* ---------- 入场动效 ---------- */
[data-reveal]{
  opacity:0;
  transform:translateY(16px);
  transition:opacity .5s ease,transform .5s ease;
  transition-delay:var(--d,0ms);
}
[data-reveal].is-in{opacity:1;transform:none}
html:not(.has-js) [data-reveal]{opacity:1;transform:none}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;
  right:clamp(12px,3vw,28px);
  bottom:clamp(12px,3vw,28px);
  z-index:80;
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:10px 14px;
  background:var(--night);
  color:var(--sand);
  border:1px solid var(--orange);
  border-radius:var(--radius);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.12em;
  cursor:pointer;
  opacity:0;
  visibility:hidden;
  transform:translateY(12px);
  transition:opacity .25s ease,transform .25s ease,visibility .25s ease,background-color .2s ease;
}
.to-top.is-visible{opacity:1;visibility:visible;transform:none}
.to-top:hover{background:var(--orange);color:var(--night)}

/* ============================================================
   页脚
   ============================================================ */
.site-footer{
  margin-top:clamp(48px,7vw,96px);
  background:var(--night);
  color:var(--sand);
  font-size:14px;
}

.footer-ledger{background:var(--orange);color:var(--night)}
.ledger-inner{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px 20px;
  padding:12px 0;
}
.ledger-label{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin:0;
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:600;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--night);
}
.ledger-dot{
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--night);
  box-shadow:0 0 0 3px rgba(14,27,43,.18);
}
.ledger-text{
  flex:1 1 220px;
  margin:0;
  font-size:13px;
  line-height:1.6;
  color:#3A2415;
}
.ledger-link{
  font-family:var(--font-display);
  font-size:13px;
  font-weight:800;
  color:var(--night);
  text-decoration:none;
  border-bottom:2px solid rgba(14,27,43,.45);
  padding-bottom:1px;
}
.ledger-link:hover{color:var(--night);border-bottom-color:var(--night)}

.footer-main{padding:clamp(32px,5vw,56px) 0 clamp(18px,3vw,28px)}
.footer-grid{
  display:grid;
  grid-template-columns:1.7fr repeat(3,minmax(0,1fr));
  gap:clamp(20px,3vw,40px);
}
.footer-brand-mark{
  margin:0 0 8px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.3em;
  text-transform:uppercase;
  color:var(--mint);
}
.footer-brand-name{
  margin:0 0 12px;
  font-family:var(--font-display);
  font-weight:900;
  font-size:clamp(24px,3vw,32px);
  line-height:1;
  letter-spacing:-.03em;
  color:var(--sand);
}
.footer-brand-text{
  margin:0 0 18px;
  max-width:34ch;
  font-size:14px;
  line-height:1.7;
  color:#C9B89F;
}
.footer-cta{font-size:13px;padding:10px 16px}

.footer-col-title{
  margin:0 0 12px;
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:600;
  line-height:1.4;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--mint);
}
.footer-links{list-style:none;display:grid;gap:8px}
.footer-link{
  display:inline-block;
  padding:2px 0;
  font-size:14px;
  color:#E6D8C2;
  text-decoration:none;
  border-bottom:1px solid transparent;
}
.footer-link:hover{color:var(--mint);border-bottom-color:var(--mint)}

.footer-contact-block{
  border-top:1px solid rgba(243,232,211,.16);
  padding:18px 0 20px;
}
.contact-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:12px 28px;
}
.contact-row{display:flex;flex-direction:column;gap:3px;min-width:0}
.contact-key{
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:#9B8A74;
}
.contact-val{
  font-family:var(--font-mono);
  font-size:13px;
  line-height:1.65;
  letter-spacing:.02em;
  color:var(--sand);
  overflow-wrap:anywhere;
}
.contact-note{
  margin:14px 0 0;
  max-width:66ch;
  font-size:13px;
  line-height:1.7;
  color:#C9B89F;
}

.footer-bottom{
  border-top:1px solid rgba(243,232,211,.16);
  padding:16px 0 26px;
}
.bottom-inner{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:6px 20px;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.05em;
  color:#9B8A74;
}
.footer-copy{margin:0}
.footer-domain{margin:0;color:#9B8A74}
.footer-icp{margin:0;color:#C9B89F}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width:1100px){
  .span-3,.span-4{grid-column:span 6}
  .span-5,.span-6,.span-7{grid-column:span 12}
  .span-8,.span-9,.span-12{grid-column:span 12}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-brand{grid-column:1/-1}
}

@media (max-width:880px){
  .masthead-inner{
    grid-template-columns:1fr;
    justify-items:center;
    gap:14px;
  }
  .masthead-issue{display:none}
  .masthead-brand{grid-column:1}
  .masthead-actions{grid-column:1;justify-self:center}

  .nav-inner{justify-content:flex-start;min-height:0;padding:10px 0}
  .nav-toggle{display:inline-flex}

  .masthead-nav{
    display:none;
    position:absolute;
    top:100%;
    left:0;
    right:0;
    background:rgba(243,232,211,.99);
    border-bottom:1px solid var(--line);
    box-shadow:0 24px 40px -28px rgba(14,27,43,.65);
    padding:6px 0 10px;
  }
  .site-header[data-open="true"] .masthead-nav{display:block}

  .nav-index{flex-direction:column;align-items:stretch;justify-content:flex-start}
  .nav-link{
    width:100%;
    justify-content:flex-start;
    padding:14px 20px;
    font-size:16px;
    border-bottom:1px solid var(--line-soft);
    border-left:3px solid transparent;
  }
  .nav-link[aria-current="page"]{
    border-bottom-color:var(--line-soft);
    border-left-color:var(--orange);
  }
  .nav-link:hover{border-bottom-color:var(--line-soft);border-left-color:var(--jade)}
}

@media (max-width:620px){
  body{font-size:15.5px}
  .grid-12{grid-template-columns:repeat(6,minmax(0,1fr))}
  .span-3,.span-4,.span-5,.span-6,.span-7,.span-8,.span-9,.span-12{grid-column:span 6}

  .bar-inner{justify-content:center;text-align:center;gap:4px 14px}
  .bar-note{display:none}

  .contact-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .bottom-inner{flex-direction:column;align-items:flex-start;gap:4px}
  .ledger-inner{padding:12px 0}
  .ledger-text{flex:1 1 100%}
}

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