/* ============================================================
   OB体育 · 共享样式 /assets/site.css
   计分台框架 + 印刷边框 + 数据仪表盘色彩节奏
   ============================================================ */

/* --- 1. 设计令牌 --- */
:root{
  --ink:#070B14;
  --space:#08142E;
  --panel:#12224A;
  --cyan:#21E6C1;
  --orange:#FF7A2F;
  --ice:#F5F8FF;
  --mist:#C7D2E5;
  --slate:#6B7C99;
  --teal:#0E7C6B;
  --signal:#FFC857;

  --line:rgba(199,210,229,.16);
  --line-mid:rgba(199,210,229,.28);
  --line-cyan:rgba(33,230,193,.38);
  --line-orange:rgba(255,122,47,.45);
  --ice-ink:#2C3A55;

  --font-sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",Georgia,"Times New Roman",serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;

  --shell:1220px;
  --gutter:clamp(16px,4vw,40px);
  --ease:cubic-bezier(.2,.7,.3,1);
  --radius:3px;
  --header-h:104px;
}

/* --- 2. 重置 --- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,h5,h6,p,figure,blockquote,dl,dd,ul,ol{margin:0}
ul,ol{padding:0}
ul[class],ol[class]{list-style:none}
img,svg,video{display:block;max-width:100%}
img{height:auto}
button{font:inherit;color:inherit;background:none;border:0}
a{color:inherit;text-decoration:none}
::selection{background:var(--cyan);color:var(--ink)}
:where(a,button,summary,[tabindex]):focus-visible{
  outline:2px solid var(--cyan);
  outline-offset:3px;
  border-radius:2px;
}
#main-content{scroll-margin-top:calc(var(--header-h) + 12px)}

/* --- 3. 基础排版 --- */
body{
  background:var(--space);
  color:var(--mist);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4{font-family:var(--font-sans);font-weight:800;color:var(--ice);line-height:1.14;letter-spacing:-.012em}
h1{font-size:clamp(34px,5.4vw,72px)}
h2{font-size:clamp(26px,3.2vw,40px)}
h3{font-size:clamp(19px,2vw,24px);font-weight:700}
h4{font-size:17px;font-weight:700}
p{max-width:68ch}
strong{color:var(--ice);font-weight:700}

.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1;letter-spacing:.04em}
.num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1;font-weight:700;letter-spacing:.02em}
.serif{font-family:var(--font-serif);font-weight:600;letter-spacing:.02em}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.22em;
  color:var(--cyan);text-transform:uppercase;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--orange);flex:none}
.lede{font-family:var(--font-serif);font-size:clamp(17px,2.1vw,22px);line-height:1.78;color:var(--ice);max-width:42ch}

/* --- 4. 骨架与容器 --- */
.shell{width:100%;max-width:var(--shell);margin-inline:auto;padding-inline:var(--gutter)}
.page-main{position:relative;z-index:1}
.section{padding:clamp(48px,7vw,88px) 0}
.section--ice{background:var(--ice);color:var(--ice-ink)}
.section--ice :where(h1,h2,h3,h4){color:var(--ink)}
.section--ice .lede{color:var(--ice-ink)}
.section--ice :where(p){color:var(--ice-ink)}
.grid{display:grid;gap:clamp(16px,2.4vw,28px)}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.stack{display:grid;gap:var(--stack-gap,16px)}

/* --- 5. 跳过链接 --- */
.skip-link{
  position:fixed;top:8px;left:8px;z-index:200;
  padding:10px 16px;
  background:var(--cyan);color:var(--ink);
  font-family:var(--font-mono);font-size:13px;letter-spacing:.08em;
  border-radius:2px;
  transform:translateY(-160%);
  transition:transform .2s var(--ease);
}
.skip-link:focus-visible,.skip-link:focus{transform:translateY(0)}

/* --- 6. 页头：计分台框架 --- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:var(--space);
  border-bottom:1px solid var(--line-cyan);
}
.frame-progress{
  position:absolute;top:0;left:0;right:0;height:2px;z-index:2;
  background:rgba(33,230,193,.12);
  pointer-events:none;
}
.frame-progress span{
  display:block;height:100%;width:0;
  background:linear-gradient(90deg,var(--cyan),var(--orange));
  transition:width .2s linear;
}
.header-rail{background:var(--ink);border-bottom:1px solid var(--line)}
.header-rail__inner{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  min-height:38px;
}
.rail-line{
  position:relative;
  display:flex;align-items:center;gap:9px;
  font-family:var(--font-mono);
  font-size:11px;letter-spacing:.14em;
  color:var(--slate);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
  max-width:none;
}
.rail-line::before{content:"";width:6px;height:6px;background:var(--cyan);flex:none;border-radius:1px}
.quick-links{
  display:flex;align-items:center;gap:6px;flex-wrap:nowrap;
  overflow-x:auto;scrollbar-width:none;
}
.quick-links::-webkit-scrollbar{display:none}
.quick-link{
  display:inline-block;
  padding:3px 10px;
  font-family:var(--font-mono);
  font-size:11px;letter-spacing:.1em;
  color:var(--mist);
  border:1px solid var(--line);
  border-radius:2px;
  white-space:nowrap;
  transition:color .18s var(--ease),border-color .18s var(--ease),background .18s var(--ease);
}
.quick-link:hover{color:var(--cyan);border-color:var(--line-cyan);background:rgba(33,230,193,.08)}

.header-main__inner{
  display:flex;align-items:center;gap:clamp(10px,1.8vw,24px);
  min-height:64px;
}

/* 品牌 */
.brand{display:inline-flex;align-items:center;gap:12px;flex:none}
.brand__mark{
  position:relative;
  display:grid;place-items:center;
  width:38px;height:38px;flex:none;
  border:1px solid var(--cyan);
  background:rgba(33,230,193,.07);
  color:var(--cyan);
  font-family:var(--font-mono);font-weight:700;font-size:14px;letter-spacing:.02em;
  transition:border-color .18s var(--ease),background .18s var(--ease);
}
.brand__mark::after{
  content:"";position:absolute;right:-1px;top:-1px;
  width:9px;height:9px;
  background:var(--orange);
}
.brand:hover .brand__mark{border-color:var(--orange);background:rgba(255,122,47,.12)}
.brand__text{display:block}
.brand__name{display:block;font-size:19px;font-weight:800;line-height:1.15;color:var(--ice);letter-spacing:.01em}
.brand__sub{display:block;font-size:10px;letter-spacing:.16em;color:var(--slate);line-height:1.5}
.brand--footer .brand__mark{width:34px;height:34px;font-size:13px}
.brand--footer .brand__name{font-size:18px}
.brand--footer .brand__sub{font-size:9.5px}

/* 移动按钮 */
.nav-toggle{
  display:none;
  align-items:center;gap:8px;
  margin-left:auto;
  padding:8px 12px;
  border:1px solid var(--line-mid);
  border-radius:2px;
  color:var(--ice);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.12em;
  cursor:pointer;
}
.nav-toggle:hover{border-color:var(--cyan);color:var(--cyan)}
.nav-toggle__bars{position:relative;display:block;width:16px;height:10px}
.nav-toggle__bars::before,
.nav-toggle__bars::after{
  content:"";position:absolute;left:0;width:100%;height:1.5px;
  background:currentColor;
  transition:transform .2s var(--ease);
}
.nav-toggle__bars::before{top:0}
.nav-toggle__bars::after{bottom:0}
.nav-toggle__label{line-height:1}
.site-header[data-open] .nav-toggle__bars::before{transform:translateY(4.25px) rotate(45deg)}
.site-header[data-open] .nav-toggle__bars::after{transform:translateY(-4.25px) rotate(-45deg)}

/* 主导航 */
.primary-nav{margin-left:auto;min-width:0}
.nav-list{display:flex;align-items:stretch;gap:0}
.nav-item{display:flex}
.nav-item + .nav-item{border-left:1px solid var(--line)}
.nav-link{
  position:relative;
  display:block;
  padding:12px 13px;
  font-size:14.5px;
  color:var(--mist);
  transition:color .18s var(--ease),background .18s var(--ease);
}
.nav-link:hover{color:var(--ice);background:rgba(33,230,193,.07)}
.nav-link[aria-current="page"]{color:var(--cyan)}
.nav-link[aria-current="page"]::after{
  content:"";position:absolute;left:13px;right:13px;bottom:3px;height:2px;
  background:var(--cyan);
}

/* 行动按钮 */
.header-cta{margin-left:6px;flex:none}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 18px;
  font-family:var(--font-sans);font-size:14px;font-weight:600;line-height:1.2;
  border:1px solid transparent;border-radius:2px;
  cursor:pointer;
  transition:color .18s var(--ease),background .18s var(--ease),border-color .18s var(--ease);
}
.btn--primary{background:var(--cyan);border-color:var(--cyan);color:var(--ink)}
.btn--primary:hover{background:var(--orange);border-color:var(--orange);color:var(--ink)}
.btn--ghost{background:transparent;border-color:var(--line-mid);color:var(--ice)}
.btn--ghost:hover{border-color:var(--cyan);color:var(--cyan)}
.btn--sm{padding:9px 14px;font-size:13px}

/* --- 7. 通用组件 --- */
.panel{
  position:relative;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:clamp(18px,2.4vw,26px);
}
.panel--accent{border-color:var(--line-cyan);box-shadow:inset 0 1px 0 rgba(33,230,193,.28)}
.panel--ice{background:var(--ice);border-color:rgba(8,20,46,.14);color:var(--ice-ink)}
.panel--ice :where(h2,h3,h4){color:var(--ink)}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 9px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;
  color:var(--cyan);background:rgba(33,230,193,.08);
  border:1px solid var(--line-cyan);border-radius:2px;
}
.tag--orange{color:var(--orange);background:rgba(255,122,47,.1);border-color:var(--line-orange)}
.tag--teal{color:#4FD1B8;background:rgba(14,124,107,.22);border-color:rgba(14,124,107,.75)}

.breadcrumbs{
  padding-top:18px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;
  color:var(--slate);
}
.breadcrumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.breadcrumbs li{display:flex;align-items:center;gap:8px}
.breadcrumbs li + li::before{content:"/";color:var(--line-mid)}
.breadcrumbs a{color:var(--mist);border-bottom:1px solid transparent}
.breadcrumbs a:hover{color:var(--cyan);border-color:currentColor}
.breadcrumbs [aria-current="page"]{color:var(--ice)}

/* 图片容器基础规则 */
.img-frame{
  position:relative;overflow:hidden;
  aspect-ratio:16 / 9;
  border:1px solid var(--line);
  background:
    linear-gradient(135deg,rgba(18,34,74,.95),rgba(8,20,46,.95)),
    repeating-linear-gradient(90deg,rgba(33,230,193,.10) 0 1px,transparent 1px 48px);
  border-radius:var(--radius);
}
.img-frame img{width:100%;height:100%;object-fit:cover}
.img-frame--wide{aspect-ratio:21 / 9}
.img-frame--tall{aspect-ratio:3 / 4}
.img-frame--square{aspect-ratio:1 / 1}
.img-frame--plain{background:var(--panel)}
.img-frame__caption{
  position:absolute;left:0;right:0;bottom:0;
  padding:10px 14px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;
  color:var(--mist);
  background:linear-gradient(180deg,rgba(7,11,20,0),rgba(7,11,20,.88));
}

/* 分段控件 / 标签页 */
.segmented{display:grid;gap:18px}
.segmented__tablist{
  display:flex;flex-wrap:wrap;gap:6px;
  padding-bottom:10px;
  border-bottom:1px solid var(--line);
}
.segmented__btn{
  appearance:none;
  padding:8px 14px;
  font-family:var(--font-mono);font-size:13px;letter-spacing:.06em;
  color:var(--mist);
  background:transparent;
  border:1px solid var(--line);
  border-radius:2px;
  cursor:pointer;
  transition:color .18s var(--ease),background .18s var(--ease),border-color .18s var(--ease);
}
.segmented__btn:hover{border-color:var(--line-cyan);color:var(--ice)}
.segmented__btn[aria-selected="true"]{
  background:var(--cyan);border-color:var(--cyan);color:var(--ink);font-weight:600;
}
.segmented__panel{padding-top:4px}
.segmented__panel[hidden]{display:none}

/* 显现动效 */
html.has-js [data-reveal]{
  opacity:0;
  transform:translateY(14px);
  transition:opacity .36s var(--ease),transform .36s var(--ease);
}
html.has-js [data-reveal].is-visible{opacity:1;transform:none}

/* --- 8. 页脚：赛季档案台账 --- */
.site-footer{
  position:relative;
  background:var(--space);
  color:var(--mist);
  border-top:1px solid var(--line-cyan);
  padding-top:clamp(40px,6vw,72px);
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;
  width:132px;height:3px;background:var(--orange);
}
.footer-inner{
  display:grid;
  grid-template-columns:1.6fr .8fr .8fr 1.3fr;
  gap:clamp(20px,3vw,44px);
  padding-bottom:clamp(28px,4vw,52px);
}
.footer-brand{max-width:38ch}
.footer-intro{
  margin-top:16px;
  font-size:14.5px;line-height:1.85;color:var(--mist);
  max-width:34ch;
}
.footer-tag{
  margin-top:14px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.18em;
  color:var(--slate);
}
.footer-col__title{
  position:relative;
  font-family:var(--font-serif);font-size:16px;font-weight:600;
  color:var(--ice);letter-spacing:.06em;line-height:1.4;
  padding-bottom:10px;margin-bottom:14px;
  border-bottom:1px solid var(--line);
}
.footer-col__title::after{
  content:"";position:absolute;left:0;bottom:-1px;
  width:28px;height:1px;background:var(--orange);
}
.footer-links{display:grid;gap:2px}
.footer-link{
  display:inline-block;
  padding:4px 0;
  font-size:14.5px;color:var(--mist);
  border-bottom:1px solid transparent;
  transition:color .18s var(--ease),border-color .18s var(--ease);
}
.footer-link:hover{color:var(--cyan);border-color:rgba(33,230,193,.5)}
.footer-line{
  display:flex;align-items:flex-start;gap:10px;
  padding:7px 0;
  border-bottom:1px dashed rgba(199,210,229,.13);
  max-width:none;
}
.footer-line__label{
  flex:none;min-width:40px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;
  color:var(--slate);
  padding-top:3px;
}
.footer-line__value{
  font-family:var(--font-mono);font-size:13.5px;
  color:var(--ice);word-break:break-word;
}
.footer-line__value--text{
  font-family:var(--font-sans);font-size:13.5px;line-height:1.7;color:var(--mist);
}
.footer-note{
  margin-top:12px;
  font-size:12.5px;line-height:1.8;color:var(--slate);
  max-width:38ch;
}
.footer-base{background:var(--ink);border-top:1px solid var(--line)}
.footer-base__inner{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:10px 24px;
  padding-block:16px;
  font-size:12.5px;color:var(--slate);
}
.footer-legal{font-size:12px;letter-spacing:.1em;color:var(--mist);max-width:none}
.footer-copy{font-size:12.5px;color:var(--slate);max-width:none}

/* --- 9. 响应式 --- */
@media (max-width:1080px){
  .footer-inner{grid-template-columns:1.5fr 1fr 1fr;}
  .footer-contact{grid-column:1 / -1}
  .footer-contact .footer-col__title{max-width:none}
}

@media (max-width:980px){
  :root{--header-h:96px}
  .nav-toggle{display:inline-flex}
  .primary-nav{
    position:absolute;left:0;right:0;top:100%;
    display:none;
    margin-left:0;
    background:var(--ink);
    border-bottom:1px solid var(--line-cyan);
    box-shadow:0 18px 34px rgba(7,11,20,.55);
    max-height:calc(100dvh - var(--header-h));
    overflow-y:auto;
    padding:6px 0 14px;
  }
  .site-header[data-open] .primary-nav{display:block}
  .nav-list{flex-direction:column;align-items:stretch;gap:0}
  .nav-item + .nav-item{border-left:0;border-top:1px solid var(--line)}
  .nav-link{padding:14px var(--gutter);font-size:15.5px}
  .nav-link[aria-current="page"]{background:rgba(33,230,193,.08)}
  .nav-link[aria-current="page"]::after{left:var(--gutter);right:auto;width:18px;bottom:8px}
  .header-cta{margin-left:0}
  .footer-inner{grid-template-columns:1fr 1fr}
  .footer-brand{grid-column:1 / -1;max-width:none}
  .footer-intro{max-width:52ch}
}

@media (max-width:720px){
  .rail-line{display:none}
  .header-rail__inner{justify-content:flex-start}
  .quick-links{width:100%}
  .brand__sub{font-size:9px;letter-spacing:.1em}
  .footer-inner{grid-template-columns:1fr}
  .footer-contact{grid-column:auto}
}

@media (max-width:560px){
  .header-cta{display:none}
  .nav-toggle{margin-left:auto}
  .brand__sub{display:none}
  .grid--2,.grid--3{grid-template-columns:1fr}
  .btn{width:100%}
  .btn--sm{width:auto}
  .footer-base__inner{flex-direction:column;align-items:flex-start;gap:6px}
}

@media (min-width:561px) and (max-width:860px){
  .grid--2,.grid--3{grid-template-columns:1fr}
}

/* --- 10. 可访问性与动效偏好 --- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  html.has-js [data-reveal]{opacity:1;transform:none}
  .frame-progress span{transition:none}
}