/* ============================================================
   米兰体育中文站 · 共享样式 /assets/site.css
   刊头 · 主导航 · 页脚 · 通用组件
   ============================================================ */

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

/* ---------- 2. Tokens ---------- */
:root{
  --paper:#F4F1EA;
  --ink:#14161A;
  --red:#C8102E;
  --red-deep:#7A0C1E;
  --lime:#B8E62E;
  --blue:#1E6BFF;
  --link:#1554CC;
  --gray:#5A5F66;
  --mist:#D9D5CC;
  --amber:#F2C230;

  --font-display:"Barlow Condensed","Oswald","Noto Sans SC","Source Han Sans SC",sans-serif;
  --font-num:"JetBrains Mono","IBM Plex Mono","SFMono-Regular",Consolas,monospace;
  --font-body:"Noto Sans SC","Source Han Sans SC",system-ui,-apple-system,"Microsoft YaHei",sans-serif;

  --wrap:1180px;
  --gutter:clamp(16px,4vw,40px);
  --line:1px solid var(--mist);
  --print-shadow:5px 5px 0 rgba(20,22,26,.14);
  --ease:cubic-bezier(.2,.7,.3,1);
}

/* ---------- 3. 中文排版基础 ---------- */
html{scroll-padding-top:160px}
body{
  background-color:var(--paper);
  background-image:
    linear-gradient(rgba(20,22,26,.04) 1px,transparent 1px),
    linear-gradient(90deg,rgba(20,22,26,.04) 1px,transparent 1px);
  background-size:46px 46px;
  color:var(--ink);
  font-family:var(--font-body);
  font-size:17px;
  font-weight:400;
  line-height:1.75;
  letter-spacing:.01em;
  overflow-x:hidden;
}
h1,h2,h3,h4{font-family:var(--font-display);font-weight:800;line-height:1.12;letter-spacing:.01em}
h1{font-size:clamp(34px,5.6vw,58px);font-weight:900;line-height:1.05}
h2{font-size:clamp(25px,3.4vw,40px);font-weight:800}
h3{font-size:22px;font-weight:700}
p{max-width:68ch}
a{color:var(--link);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{color:var(--red)}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;letter-spacing:.02em;font-weight:500}

/* 焦点可见 */
:focus-visible{outline:3px solid var(--blue);outline-offset:2px}
.site-footer :focus-visible,
.dock :focus-visible,
.site-header .btn--entry:focus-visible{outline-color:var(--lime)}

/* 跳到主内容 */
.skip-link{
  position:absolute;left:var(--gutter);top:-120px;z-index:120;
  background:var(--ink);color:var(--paper);
  font-family:var(--font-display);font-weight:700;font-size:17px;letter-spacing:.06em;
  padding:11px 20px;text-decoration:none;border-left:5px solid var(--red);
}
.skip-link:focus{top:14px;color:var(--paper)}

/* ---------- 4. 容器与栅格 ---------- */
.wrap{width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:var(--gutter)}
.wrap--narrow{max-width:820px}
.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))}
@media (max-width:900px){.grid--3{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:640px){.grid--2,.grid--3{grid-template-columns:minmax(0,1fr)}}

/* ---------- 5. 通用组件 ---------- */
.breadcrumbs{margin:26px 0 0}
.breadcrumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-family:var(--font-num);font-size:13px;color:var(--gray)}
.breadcrumbs li{display:flex;align-items:center;gap:10px}
.breadcrumbs li+li::before{content:"/";color:var(--mist)}
.breadcrumbs a{color:var(--gray);text-decoration:none;border-bottom:1px solid var(--mist);padding-bottom:1px}
.breadcrumbs a:hover{color:var(--red);border-color:var(--red)}

.section-head{
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:14px;
  margin-bottom:clamp(18px,2.6vw,28px);padding-bottom:14px;border-bottom:2px solid var(--ink);
}
.section-head h2{margin:0}
.eyebrow{display:block;font-family:var(--font-num);font-size:13px;letter-spacing:.12em;color:var(--red);margin-bottom:6px}

.card{
  position:relative;display:flex;flex-direction:column;gap:10px;
  background:#FBF9F4;border:var(--line);box-shadow:var(--print-shadow);
  padding:clamp(18px,2.4vw,26px);
}
.card::before{content:"";position:absolute;left:0;top:0;width:6px;height:34px;background:var(--red)}
.card__meta{margin:0;font-family:var(--font-num);font-size:13px;letter-spacing:.05em;color:var(--gray);max-width:none}
.card__title{margin:0;font-family:var(--font-display);font-weight:800;font-size:22px;line-height:1.22}
.card__body{margin:0;font-size:16px;line-height:1.7;color:var(--gray)}
a.card{text-decoration:none;color:var(--ink);transition:transform .18s var(--ease),box-shadow .18s var(--ease)}
a.card:hover{transform:translate(-3px,-3px);box-shadow:9px 9px 0 rgba(200,16,46,.18);color:var(--ink)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-family:var(--font-display);font-weight:700;font-size:17px;line-height:1;letter-spacing:.04em;
  padding:11px 20px;border:1.5px solid var(--ink);background:transparent;color:var(--ink);
  text-decoration:none;
  transition:background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease);
}
.btn:hover{background:var(--ink);color:var(--paper)}
.btn:active{transform:translateY(1px)}
.btn--solid{background:var(--ink);border-color:var(--ink);color:var(--paper)}
.btn--solid:hover{background:var(--red);border-color:var(--red-deep);color:#fff}
.btn--entry{background:var(--red);border-color:var(--red-deep);color:#fff}
.btn--entry:hover{background:var(--red-deep);border-color:var(--red-deep);color:#fff}
.btn--ghost{background:transparent;border-color:var(--mist);color:var(--gray)}
.btn--ghost:hover{background:var(--ink);border-color:var(--ink);color:var(--paper)}
.btn--lime{background:var(--lime);border-color:var(--lime);color:var(--ink)}
.btn--lime:hover{background:var(--ink);border-color:var(--ink);color:var(--lime)}

/* 响应式视觉容器：页面阶段放入抽象图形与数据图表 */
.media-frame{
  position:relative;overflow:hidden;background:var(--mist);
  border:1px solid rgba(20,22,26,.18);box-shadow:var(--print-shadow);
}
.media-frame__inner,
.media-frame > img,
.media-frame > svg{display:block;width:100%;height:100%;object-fit:cover}
.media-frame--16x9{aspect-ratio:16/9}
.media-frame--4x3{aspect-ratio:4/3}
.media-frame--1x1{aspect-ratio:1/1}
.media-frame--tall{aspect-ratio:4/5}
.media-frame__tag{
  position:absolute;left:0;top:0;
  background:var(--ink);color:var(--lime);
  font-family:var(--font-num);font-size:12px;letter-spacing:.08em;
  padding:6px 10px;
}
.media-frame__caption{
  position:absolute;left:0;bottom:0;width:100%;max-width:none;margin:0;
  padding:26px 14px 12px;color:var(--paper);font-size:14px;line-height:1.55;
  background:linear-gradient(180deg,rgba(20,22,26,0),rgba(20,22,26,.9));
}

/* 显现动效 */
[data-reveal]{opacity:0;transform:translateY(14px);transition:opacity .16s var(--ease),transform .16s var(--ease)}
[data-reveal].is-in{opacity:1;transform:none}

/* ---------- 6. 刊头 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--paper);
  border-bottom:1px solid var(--ink);
}
.site-header::before{
  content:"";display:block;height:5px;
  background:linear-gradient(90deg,var(--red) 0 62%,var(--ink) 62% 100%);
}
.masthead{max-width:var(--wrap);margin-inline:auto;padding-inline:var(--gutter)}
.masthead__rack{
  display:grid;grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);
  align-items:center;gap:16px;
  padding:22px 0 12px;
  transition:padding .22s var(--ease);
}
.masthead__tag{
  display:flex;align-items:center;gap:8px;margin:0;max-width:none;
  font-family:var(--font-num);font-size:13px;letter-spacing:.08em;color:var(--gray);
}
.masthead__tag .num{background:var(--ink);color:var(--lime);padding:3px 7px;font-size:12px}
.masthead__brand{
  display:flex;flex-direction:column;align-items:center;gap:6px;
  text-align:center;text-decoration:none;color:var(--ink);
}
.masthead__brand:hover{color:var(--ink)}
.masthead__name{
  font-family:var(--font-display);font-weight:900;letter-spacing:.02em;line-height:1;
  font-size:clamp(34px,5.4vw,56px);
  transition:font-size .22s var(--ease);
}
.masthead__name::after{
  content:"";display:block;height:4px;margin-top:7px;
  background:repeating-linear-gradient(90deg,var(--red) 0 14px,var(--ink) 14px 17px,transparent 17px 20px);
}
.masthead__sub{font-size:12px;letter-spacing:.2em;color:var(--gray);padding-left:.2em}
.masthead__tools{display:flex;justify-content:flex-end;align-items:center;gap:10px}

/* 移动导航开关 */
.nav-toggle{
  display:none;width:100%;align-items:center;justify-content:center;gap:10px;
  margin:0 0 12px;padding:11px 16px;
  background:var(--ink);color:var(--paper);border:1px solid var(--ink);
  font-family:var(--font-display);font-weight:700;font-size:17px;letter-spacing:.08em;
}
.nav-toggle__label{line-height:1}
.nav-toggle__bars{position:relative;display:block;width:18px;height:2px;background:currentColor}
.nav-toggle__bars::before,
.nav-toggle__bars::after{content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor}
.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{top:0;transform:rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after{top:0;transform:rotate(-45deg)}

/* 主导航 */
.site-nav{border-top:1px solid var(--ink)}
.site-nav__list{
  display:flex;flex-wrap:wrap;justify-content:center;
  gap:clamp(6px,2vw,30px);padding:9px 0 11px;
}
.site-nav__list a{
  position:relative;display:inline-block;padding:2px 1px;
  font-family:var(--font-display);font-weight:700;font-size:19px;letter-spacing:.04em;
  color:var(--ink);text-decoration:none;
  transition:color .18s var(--ease);
}
.site-nav__list a::after{
  content:"";position:absolute;left:0;bottom:-3px;width:0;height:3px;
  background:var(--red);transition:width .22s var(--ease);
}
.site-nav__list a:hover{color:var(--red)}
.site-nav__list a:hover::after{width:100%}
.site-nav__list a[aria-current="page"]{color:var(--red)}
.site-nav__list a[aria-current="page"]::after{width:100%;background:var(--red)}

/* 阅读进度条 */
.scroll-progress{
  position:absolute;left:0;bottom:-1px;height:3px;width:0;
  background:linear-gradient(90deg,var(--red),var(--lime) 55%,var(--blue));
  transition:width .12s linear;
}

/* 压缩态 */
.site-header.is-compact .masthead__rack{padding:8px 0 4px}
.site-header.is-compact .masthead__name{font-size:26px}
.site-header.is-compact .masthead__name::after{height:3px;margin-top:4px}
.site-header.is-compact .masthead__sub,
.site-header.is-compact .masthead__tag{display:none}
.site-header.is-compact .site-nav__list{padding:5px 0 7px}
.site-header.is-compact .site-nav__list a{font-size:17px}
.site-header.is-compact .btn{padding:8px 14px;font-size:15px}

/* ---------- 7. 移动端刊头 ---------- */
@media (max-width:880px){
  .masthead__tag{display:none}
  .masthead__rack{
    grid-template-columns:minmax(0,1fr) auto;
    align-items:center;gap:12px;padding:14px 0 10px;
  }
  .masthead__brand{align-items:flex-start;text-align:left;gap:3px}
  .masthead__name{font-size:30px}
  .masthead__sub{font-size:11px;letter-spacing:.14em;padding-left:0}
  .masthead__tools{justify-content:flex-end}
  .masthead__tools .btn{padding:9px 12px;font-size:15px}
  .nav-toggle{display:flex}
  .site-nav{
    display:none;margin-bottom:12px;
    border-top:1px solid var(--mist);border-bottom:1px solid var(--mist);
  }
  .site-nav[data-open]{display:block}
  .site-nav__list{flex-direction:column;gap:0;padding:4px 0 8px}
  .site-nav__list a{
    display:block;font-size:20px;padding:12px 4px;
    border-bottom:1px solid var(--mist);
  }
  .site-nav__list li:last-child a{border-bottom:0}
  .site-nav__list a::after{display:none}
  .site-nav__list a[aria-current="page"]{
    padding-left:12px;background:rgba(200,16,46,.08);border-left:4px solid var(--red);
  }
  .site-header.is-compact .masthead__name{font-size:22px}
  .site-header.is-compact .masthead__rack{padding:10px 0 6px}
}

/* ---------- 8. 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:clamp(56px,8vw,110px);
  background-color:var(--ink);
  background-image:repeating-linear-gradient(90deg,rgba(200,16,46,.18) 0 2px,transparent 2px 32px);
  color:var(--paper);
  border-top:5px solid var(--red);
}
.site-footer::after{content:"";display:block;height:5px;background:var(--red)}
.footer__grid{
  max-width:var(--wrap);margin-inline:auto;
  padding:clamp(34px,5vw,60px) var(--gutter) 26px;
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:clamp(20px,3vw,40px);
}
.footer__brand{max-width:38ch}
.footer__name{
  margin:0 0 8px;font-family:var(--font-display);font-weight:900;font-size:34px;line-height:1;
}
.footer__sub{
  margin:0 0 14px;max-width:none;
  font-family:var(--font-num);font-size:12px;letter-spacing:.14em;color:var(--lime);
}
.footer__note{margin:0;font-size:14px;line-height:1.7;color:rgba(244,241,234,.66);max-width:34ch}
.footer__note--wide{max-width:72ch;margin-top:6px}
.footer__col{display:block}
.footer__title{
  position:relative;margin:0 0 14px;padding-left:14px;padding-bottom:8px;
  font-family:var(--font-display);font-weight:700;font-size:17px;letter-spacing:.1em;
  color:var(--paper);border-bottom:1px solid rgba(244,241,234,.2);
}
.footer__title::before{content:"";position:absolute;left:0;top:.42em;width:8px;height:8px;background:var(--red)}
.footer__list{display:flex;flex-direction:column;gap:9px}
.footer__list a{
  font-size:15px;line-height:1.55;color:rgba(244,241,234,.82);text-decoration:none;
  border-bottom:1px solid transparent;
  transition:color .16s var(--ease),border-color .16s var(--ease);
}
.footer__list a:hover{color:var(--lime);border-bottom-color:var(--lime)}
.footer__contact{
  max-width:var(--wrap);margin-inline:auto;
  padding:24px var(--gutter) 24px;
  border-top:1px solid rgba(244,241,234,.16);
}
.footer__facts{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:18px;margin-top:14px}
.footer__facts dt{font-family:var(--font-num);font-size:12px;letter-spacing:.1em;color:var(--lime);margin-bottom:4px}
.footer__facts dd{margin:0;font-size:15px;color:rgba(244,241,234,.9);word-break:break-word}
.footer__base{
  max-width:var(--wrap);margin-inline:auto;
  padding:18px var(--gutter) 26px;
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  border-top:1px solid rgba(244,241,234,.16);
  font-family:var(--font-num);font-size:13px;color:rgba(244,241,234,.6);
}
.footer__base p{margin:0;max-width:none}
.footer__legal{color:rgba(244,241,234,.8)}

@media (max-width:900px){
  .footer__grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:26px}
  .footer__brand{grid-column:1/-1}
}
@media (max-width:560px){
  .footer__grid{grid-template-columns:minmax(0,1fr)}
  .footer__name{font-size:28px}
}

/* ---------- 9. 右下常驻栏 ---------- */
.dock{
  position:fixed;right:clamp(12px,3vw,28px);bottom:clamp(12px,3vw,28px);z-index:70;
  display:flex;flex-direction:column;align-items:flex-end;gap:8px;
}
.dock__entry{
  display:inline-block;padding:10px 16px;text-decoration:none;
  background:var(--red);border:1px solid var(--red-deep);color:#fff;
  font-family:var(--font-display);font-weight:700;font-size:16px;letter-spacing:.04em;
  box-shadow:4px 4px 0 rgba(20,22,26,.22);
  transition:background-color .18s var(--ease);
}
.dock__entry:hover{background:var(--red-deep);color:#fff}
.dock__top{
  padding:8px 12px;
  background:var(--ink);color:var(--paper);border:1px solid rgba(244,241,234,.28);
  font-family:var(--font-num);font-size:12px;letter-spacing:.08em;
  transition:color .18s var(--ease),border-color .18s var(--ease);
}
.dock__top:hover{color:var(--lime);border-color:var(--lime)}
@media (max-width:560px){
  .dock__entry{font-size:14px;padding:9px 12px}
  .dock__top{font-size:11px;padding:7px 10px}
}

/* ---------- 10. 动效降级 ---------- */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  [data-reveal]{opacity:1;transform:none;transition:none}
  .scroll-progress{transition:none}
  .masthead__name,
  .masthead__rack,
  .site-nav__list a::after,
  .btn,
  .dock__entry{transition:none}
}