/* ============ 小鸟体育看台 · 共享样式表 /assets/site.css ============ */

:root{
  --sky-700:#0F5B78;
  --sky-500:#1B86A6;
  --sky-100:#DDF2F7;
  --rape-500:#F3C63F;
  --rape-200:#FFE9A8;
  --brick-600:#B54A34;
  --ink-900:#142A33;
  --paper-50:#FBF7EC;
  --line-300:#9FC8D4;

  --font-head:"PingFang SC","Hiragino Sans GB","Source Han Sans SC","Noto Sans CJK SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-body:var(--font-head);
  --font-mono:ui-monospace,"SF Mono",SFMono-Regular,Menlo,Consolas,"Liberation Mono","Courier New",monospace;

  --radius-xl:32px;
  --radius-l:24px;
  --radius-m:16px;
  --radius-s:10px;
  --pill:999px;

  --wrap:1200px;
  --gutter:clamp(16px,3.2vw,40px);
  --dur:240ms;
  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper-50);
  color:var(--ink-900);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,h5,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
img,svg,picture{display:block;max-width:100%}
a{color:inherit}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
table{border-collapse:collapse;width:100%}

/* ---------- 中文排版 ---------- */
h1,h2,h3,h4{
  font-family:var(--font-head);
  font-weight:800;
  line-height:1.15;
  letter-spacing:-.012em;
  text-wrap:balance;
}
h1{font-size:clamp(30px,5vw,56px)}
h2{font-size:clamp(24px,3.4vw,38px)}
h3{font-size:clamp(18px,2.2vw,24px)}
p{text-wrap:pretty}

/* ---------- 焦点与可达性 ---------- */
:where(a,button,summary,[tabindex]):focus-visible{
  outline:3px solid var(--rape-500);
  outline-offset:3px;
  border-radius:var(--radius-s);
}
.gz-skip{
  position:absolute;
  left:12px;
  top:-80px;
  z-index:400;
  padding:.7em 1.2em;
  border-radius:var(--pill);
  background:var(--rape-500);
  color:var(--ink-900);
  font-family:var(--font-head);
  font-weight:800;
  font-size:14px;
  text-decoration:none;
  transition:top var(--dur) var(--ease);
}
.gz-skip:focus{top:12px}

/* ============ 页头 ============ */
.gz-header{
  position:sticky;
  top:0;
  z-index:120;
  background:var(--sky-700);
  color:var(--paper-50);
  border-bottom:1px solid rgba(255,255,255,.16);
}
.gz-header::before{
  content:"";
  position:absolute;
  inset:0 0 auto 0;
  height:4px;
  background:linear-gradient(90deg,var(--rape-500) 0 26%,var(--brick-600) 26% 36%,var(--sky-500) 36% 100%);
}
.gz-header[data-stuck]{
  box-shadow:0 18px 40px -28px rgba(20,42,51,.9);
}
.gz-header__bar{
  display:flex;
  align-items:center;
  gap:clamp(10px,1.6vw,22px);
  width:100%;
  max-width:1280px;
  margin-inline:auto;
  min-height:76px;
  padding:14px var(--gutter);
  transition:min-height var(--dur) var(--ease),padding var(--dur) var(--ease);
}
.gz-header[data-stuck] .gz-header__bar{
  min-height:58px;
  padding-block:7px;
}

/* 品牌 */
.gz-brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  flex:0 0 auto;
  text-decoration:none;
}
.gz-brand__mark{
  display:grid;
  place-items:center;
  width:40px;
  height:40px;
  border-radius:14px;
  background:var(--rape-500);
  color:var(--sky-700);
  font-family:var(--font-head);
  font-weight:800;
  font-size:19px;
  line-height:1;
  transform:rotate(-6deg);
  transition:transform var(--dur) var(--ease),background var(--dur) var(--ease);
}
.gz-brand:hover .gz-brand__mark{transform:rotate(0);background:var(--rape-200)}
.gz-brand__text{display:flex;flex-direction:column;line-height:1.25}
.gz-brand__name{
  font-family:var(--font-head);
  font-weight:800;
  font-size:16px;
  letter-spacing:.02em;
  color:var(--paper-50);
}
.gz-brand__meta{
  display:inline-flex;
  align-items:center;
  gap:6px;
  margin-top:2px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.1em;
  color:var(--sky-100);
  opacity:.85;
}
.gz-status{
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--rape-500);
  box-shadow:0 0 0 3px rgba(243,198,63,.24);
}

/* 命令栏导航 */
.gz-nav{margin-left:auto}
.gz-nav__list{display:flex;align-items:center;gap:2px}
.gz-nav__item{display:flex}
.gz-nav__link{
  display:inline-flex;
  align-items:baseline;
  gap:6px;
  flex:1;
  padding:8px 12px;
  border-radius:var(--pill);
  font-size:14px;
  font-weight:600;
  white-space:nowrap;
  text-decoration:none;
  color:rgba(251,247,236,.88);
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease);
}
.gz-nav__link:hover{background:rgba(255,255,255,.13);color:#fff}
.gz-nav__idx{
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.08em;
  color:var(--sky-100);
  opacity:.62;
  transition:color var(--dur) var(--ease),opacity var(--dur) var(--ease);
}
.gz-nav__link[aria-current="page"]{
  background:rgba(255,255,255,.16);
  color:var(--rape-500);
  box-shadow:inset 0 -2px 0 var(--rape-500);
}
.gz-nav__link[aria-current="page"] .gz-nav__idx{color:var(--rape-500);opacity:1}

/* 头部 CTA */
.gz-header__cta{
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:9px 17px;
  border-radius:var(--pill);
  background:var(--rape-500);
  color:var(--ink-900);
  font-family:var(--font-head);
  font-weight:800;
  font-size:13.5px;
  letter-spacing:.01em;
  text-decoration:none;
  transition:background var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.gz-header__cta:hover{background:var(--rape-200);transform:translateY(-1px)}

/* 移动目录按钮 */
.gz-navtoggle{
  display:none;
  align-items:center;
  gap:9px;
  padding:8px 14px;
  border-radius:var(--pill);
  border:1px solid rgba(255,255,255,.4);
  color:var(--paper-50);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.12em;
  transition:border-color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.gz-navtoggle:hover{border-color:var(--rape-500);background:rgba(255,255,255,.1)}
.gz-navtoggle__box{position:relative;display:block;width:16px;height:12px}
.gz-navtoggle__box span{
  position:absolute;
  left:0;
  width:100%;
  height:2px;
  border-radius:2px;
  background:currentColor;
  transition:transform var(--dur) var(--ease),opacity var(--dur) var(--ease);
}
.gz-navtoggle__box span:nth-child(1){top:0}
.gz-navtoggle__box span:nth-child(2){top:5px}
.gz-navtoggle__box span:nth-child(3){top:10px}
.gz-header[data-open] .gz-navtoggle__box span:nth-child(1){transform:translateY(5px) rotate(45deg)}
.gz-header[data-open] .gz-navtoggle__box span:nth-child(2){opacity:0}
.gz-header[data-open] .gz-navtoggle__box span:nth-child(3){transform:translateY(-5px) rotate(-45deg)}

/* 滚动进度尺 */
.gz-progress{
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  height:3px;
  background:rgba(255,255,255,.14);
  overflow:hidden;
}
.gz-progress__fill{
  display:block;
  height:100%;
  width:0;
  background:linear-gradient(90deg,var(--rape-500),var(--rape-200));
}

/* ============ 页脚 ============ */
.gz-footer{
  position:relative;
  margin-top:clamp(48px,7vw,96px);
  background:var(--sky-700);
  color:var(--paper-50);
}
.gz-footer__accent{
  height:8px;
  background:repeating-linear-gradient(90deg,var(--rape-500) 0 44px,var(--sky-500) 44px 88px,var(--brick-600) 88px 104px);
}
.gz-footer__grid{
  display:grid;
  grid-template-columns:1.5fr 1fr .85fr;
  gap:clamp(24px,4vw,56px);
  padding-block:clamp(34px,5vw,64px) clamp(26px,4vw,48px);
}
.gz-footer__col{min-width:0}
.gz-footer__brand{max-width:42ch}
.gz-footer__name{
  margin-top:10px;
  font-family:var(--font-head);
  font-weight:800;
  font-size:clamp(24px,3.2vw,34px);
  line-height:1.15;
  letter-spacing:-.012em;
  color:var(--paper-50);
}
.gz-footer__note{
  margin-top:12px;
  font-size:14px;
  line-height:1.75;
  color:rgba(251,247,236,.78);
}
.gz-footer__icp{
  margin-top:16px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.06em;
  color:rgba(251,247,236,.62);
}
.gz-footer__title{
  margin-bottom:14px;
  font-family:var(--font-mono);
  font-weight:700;
  font-size:12px;
  letter-spacing:.18em;
  color:var(--rape-200);
}
.gz-footer__list{display:grid;gap:10px}
.gz-footer__mono{
  font-family:var(--font-mono);
  font-size:13.5px;
  letter-spacing:.01em;
  color:rgba(251,247,236,.92);
  overflow-wrap:anywhere;
}
.gz-footer__link{
  display:inline-block;
  font-size:14.5px;
  text-decoration:none;
  color:rgba(251,247,236,.9);
  border-bottom:1px solid transparent;
  transition:color var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.gz-footer__link:hover{color:var(--rape-500);border-bottom-color:var(--rape-500)}
.gz-footer__base{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px 24px;
  padding-block:18px 28px;
  border-top:1px solid rgba(255,255,255,.18);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.06em;
  color:rgba(251,247,236,.68);
}
.gz-footer__legal{margin:0}
.gz-footer__top{
  padding:7px 14px;
  border-radius:var(--pill);
  border:1px solid rgba(255,255,255,.36);
  color:var(--paper-50);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.08em;
  transition:background var(--dur) var(--ease),border-color var(--dur) var(--ease),color var(--dur) var(--ease);
}
.gz-footer__top:hover{border-color:var(--rape-500);color:var(--rape-500);background:rgba(255,255,255,.08)}

/* ============ 通用骨架 ============ */
.gz-wrap{
  width:100%;
  max-width:var(--wrap);
  margin-inline:auto;
  padding-inline:var(--gutter);
}
.gz-section{
  position:relative;
  padding-block:clamp(38px,6vw,80px);
}
.gz-section__head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  gap:12px 24px;
  margin-bottom:clamp(20px,3vw,36px);
}
.gz-section__title{margin:0}
.gz-section__index{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.2em;
  color:var(--brick-600);
}
.gz-rule{height:1px;border:0;margin:0;background:var(--line-300)}
.gz-eyebrow{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--sky-500);
}
.gz-footer .gz-eyebrow{color:var(--rape-200)}
.gz-mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:.02em}
.gz-note{
  font-size:13px;
  line-height:1.7;
  color:rgba(20,42,51,.66);
}

/* 面包屑 */
.gz-breadcrumb{margin-block:clamp(16px,2.4vw,26px)}
.gz-breadcrumb__list{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:6px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.04em;
  color:var(--sky-500);
}
.gz-breadcrumb__item{display:inline-flex;align-items:center;gap:6px}
.gz-breadcrumb__link{
  text-decoration:none;
  color:var(--sky-700);
  border-bottom:1px solid var(--line-300);
}
.gz-breadcrumb__link:hover{border-bottom-color:var(--sky-700)}
.gz-breadcrumb__sep{color:var(--line-300)}
.gz-breadcrumb__item[aria-current="page"]{color:var(--ink-900);font-weight:700}

/* 按钮 */
.gz-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.55em;
  padding:.72em 1.45em;
  border:2px solid transparent;
  border-radius:var(--pill);
  font-family:var(--font-head);
  font-weight:800;
  font-size:15px;
  line-height:1.2;
  text-decoration:none;
  transition:transform var(--dur) var(--ease),background var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.gz-btn:hover{transform:translateY(-2px)}
.gz-btn--gold{background:var(--rape-500);color:var(--ink-900);box-shadow:0 14px 28px -18px rgba(243,198,63,1)}
.gz-btn--gold:hover{background:var(--rape-200)}
.gz-btn--blue{background:var(--sky-700);color:var(--paper-50)}
.gz-btn--blue:hover{background:var(--sky-500)}
.gz-btn--ghost{background:transparent;color:var(--sky-700);border-color:var(--line-300)}
.gz-btn--ghost:hover{border-color:var(--sky-700);background:var(--sky-100)}

/* 胶囊标签 */
.gz-chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:.28em .82em;
  border:1px solid transparent;
  border-radius:var(--pill);
  background:var(--sky-100);
  color:var(--sky-700);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.05em;
  line-height:1.5;
}
.gz-chip--gold{background:var(--rape-200);color:var(--ink-900)}
.gz-chip--brick{background:rgba(181,74,52,.12);color:var(--brick-600);border-color:rgba(181,74,52,.3)}
.gz-chip--blue{background:var(--sky-700);color:var(--paper-50)}
.gz-chip--line{background:transparent;border-color:var(--line-300);color:var(--sky-700)}

/* 等宽大数字 */
.gz-num{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  font-weight:700;
  line-height:1;
  letter-spacing:-.03em;
  color:var(--ink-900);
}
.gz-num--xl{font-size:clamp(52px,9vw,104px)}
.gz-num--l{font-size:clamp(30px,4.6vw,52px)}

/* 栅格与面板 */
.gz-grid{display:grid;gap:clamp(16px,2.4vw,28px)}
.gz-grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.gz-grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.gz-grid--halves{grid-template-columns:repeat(2,minmax(0,1fr))}
.gz-grid--index{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.gz-panel{
  padding:clamp(18px,2.8vw,28px);
  border-radius:var(--radius-m);
  background:#fff;
}
.gz-panel--tint{background:var(--sky-100)}

/* 图片容器 */
.gz-media{
  position:relative;
  display:block;
  overflow:hidden;
  border-radius:var(--radius-l);
  aspect-ratio:16/10;
  background:linear-gradient(140deg,var(--sky-100) 0%,#FFFFFF 52%,var(--rape-200) 100%);
}
.gz-media--wide{aspect-ratio:21/9}
.gz-media--tall{aspect-ratio:4/5}
.gz-media--square{aspect-ratio:1/1}
.gz-media__img{
  width:100%;
  height:100%;
  object-fit:cover;
  display:block;
}
.gz-media__caption{
  position:absolute;
  inset:auto 0 0 0;
  padding:.85em 1.1em;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.03em;
  color:var(--paper-50);
  background:linear-gradient(180deg,rgba(15,91,120,0),rgba(15,91,120,.88));
}
.gz-media__tag{position:absolute;top:12px;left:12px}

/* 分段切换 / 标签页 */
.gz-tabs{position:relative}
.gz-tabs__list{
  display:flex;
  flex-wrap:wrap;
  gap:6px;
  padding:6px;
  border-radius:var(--pill);
  background:var(--sky-100);
}
.gz-tabs__tab{
  padding:.5em 1.15em;
  border-radius:var(--pill);
  font-family:var(--font-head);
  font-weight:700;
  font-size:14px;
  color:var(--sky-700);
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease);
}
.gz-tabs__tab:hover{background:rgba(255,255,255,.75)}
.gz-tabs__tab[aria-selected="true"]{background:var(--sky-700);color:var(--paper-50)}
.gz-tabs__panel{margin-top:clamp(16px,2.4vw,24px)}
.gz-tabs__panel[hidden]{display:none}

/* ============ 响应式 ============ */
@media (max-width:1080px){
  .gz-nav__link{padding:8px 9px;font-size:13.5px}
  .gz-nav__idx{display:none}
}

@media (max-width:980px){
  .gz-header__bar{min-height:66px;padding-block:11px}
  .gz-nav{
    position:absolute;
    top:100%;
    left:0;
    right:0;
    margin-left:0;
    max-height:0;
    overflow:hidden;
    visibility:hidden;
    background:var(--sky-700);
    border-top:1px solid rgba(255,255,255,.22);
    box-shadow:0 28px 44px -30px rgba(0,0,0,.8);
    transition:max-height var(--dur) var(--ease),visibility var(--dur) linear;
  }
  .gz-header[data-open] .gz-nav{
    max-height:min(78vh,560px);
    overflow-y:auto;
    visibility:visible;
  }
  .gz-nav__list{
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:8px var(--gutter) 20px;
  }
  .gz-nav__item{display:block}
  .gz-nav__link{
    display:flex;
    align-items:center;
    padding:14px 6px;
    border-radius:0;
    border-bottom:1px solid rgba(255,255,255,.14);
    font-size:16px;
  }
  .gz-nav__idx{display:inline;font-size:11px;opacity:.7}
  .gz-nav__link[aria-current="page"]{
    background:none;
    box-shadow:inset 3px 0 0 var(--rape-500);
    padding-left:14px;
  }
  .gz-navtoggle{display:inline-flex;margin-left:auto}
  .gz-header__cta{display:none}
  .gz-grid--2,.gz-grid--3,.gz-grid--halves{grid-template-columns:1fr}
}

@media (max-width:860px){
  .gz-footer__grid{grid-template-columns:1fr 1fr}
  .gz-footer__brand{grid-column:1 / -1;max-width:none}
}

@media (max-width:620px){
  .gz-brand__mark{width:36px;height:36px;border-radius:12px;font-size:17px}
  .gz-brand__name{font-size:15px}
  .gz-brand__meta{font-size:10px;letter-spacing:.08em}
  .gz-tabs__list{border-radius:var(--radius-m)}
  .gz-num--xl{font-size:clamp(44px,13vw,72px)}
}

@media (max-width:560px){
  .gz-footer__grid{grid-template-columns:1fr;gap:28px}
  .gz-footer__base{justify-content:flex-start}
}

@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;
  }
  .gz-progress__fill{transition:none}
}