/* ============================================================
   顺发体育 · /assets/site.css
   共享层：tokens / reset / 中文排版 / 头部 / 页脚 / 基础组件
   ============================================================ */

:root{
  --ink:#0B0C0F;
  --red:#E3162B;
  --red-deep:#7C0F1D;
  --cyan:#22E0C8;
  --gold:#FFB020;
  --paper:#F5F2EC;
  --graphite:#23262C;
  --gray:#8C929C;
  --white:#FFFFFF;
  --turf:#123C33;
  --ink-72:rgba(11,12,15,.72);
  --hair:rgba(245,242,236,.14);
  --hair-strong:rgba(245,242,236,.3);
  --rail-w:88px;
  --rail-open:236px;
  --edge:3px;
  --shadow-hard:6px 6px 0 0 rgba(0,0,0,.55);
  --shadow-hard-lg:12px 12px 0 0 rgba(0,0,0,.6);
  --shadow-hard-sm:4px 4px 0 0 rgba(0,0,0,.5);
  --dur:260ms;
  --dur-fast:200ms;
  --ease:cubic-bezier(.2,.7,.3,1);
  --maxw:1240px;
  --gutter:clamp(18px,4vw,48px);
  --font-title:"Noto Sans SC","Source Han Sans SC","Source Han Sans","PingFang SC","Microsoft YaHei",sans-serif;
  --font-body:"Noto Sans SC","Inter","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-data:"JetBrains Mono","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}

*,*::before,*::after{box-sizing:border-box;}
html{background:var(--ink);-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:transparent;
  color:var(--paper);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-1;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(245,242,236,.04) 1px,transparent 1px),
    linear-gradient(90deg,rgba(245,242,236,.04) 1px,transparent 1px);
  background-size:48px 48px;
  background-position:center top;
}
img,svg,video,canvas{display:block;max-width:100%;}
a{color:inherit;}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4,h5,p,figure,blockquote,dl,dd{margin:0;}
ul,ol{margin:0;padding:0;}
[hidden]{display:none !important;}
html.sf-lock,html.sf-lock body{overflow:hidden;}
::selection{background:var(--red);color:var(--white);}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;}

@keyframes sf-pulse{
  0%{box-shadow:0 0 0 0 rgba(227,22,43,.55);}
  70%{box-shadow:0 0 0 10px rgba(227,22,43,0);}
  100%{box-shadow:0 0 0 0 rgba(227,22,43,0);}
}

/* ---------- 排版与基础工具 ---------- */
h1,h2,h3,h4{font-family:var(--font-title);font-weight:900;letter-spacing:-.04em;line-height:.98;}
.sf-display{font-size:clamp(2.4rem,7vw,7rem);line-height:.92;letter-spacing:-.045em;}
.sf-h2{font-size:clamp(1.6rem,3.4vw,2.8rem);line-height:1;}
.sf-h3{font-size:clamp(1.15rem,1.8vw,1.5rem);line-height:1.15;}
.sf-index{
  font-family:var(--font-data);
  font-size:12px;
  font-weight:700;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--gray);
}
.sf-data{font-family:var(--font-data);font-weight:700;font-variant-numeric:tabular-nums;letter-spacing:-.01em;}
.sf-lead{font-size:clamp(1rem,1.4vw,1.15rem);line-height:1.7;color:var(--gray);max-width:52ch;}
.sf-rule{border:0;border-top:var(--edge) solid var(--graphite);margin:0;}
.sf-hairline{border:0;border-top:1px solid var(--hair);margin:0;}
.sf-container{width:min(100% - (var(--gutter) * 2),var(--maxw));margin-inline:auto;}
.sf-section{padding-block:clamp(48px,7vw,96px);position:relative;}
.sf-section--paper{background:var(--paper);color:#1A1C20;}
.sf-section--turf{background:var(--turf);}
.sf-section--deep{background:var(--red-deep);}
.sf-section--graphite{background:var(--graphite);}
.sf-cut{clip-path:polygon(0 2.6vw,100% 0,100% 100%,0 100%);}
.sf-section--paper .sf-index,
.sf-section--paper .sf-lead,
.sf-section--paper .sf-crumbs,
.sf-section--paper .sf-crumbs a{color:#5A5F68;}
.sf-section--paper .sf-badge--report{color:var(--red-deep);}
.sf-section--paper .sf-badge--injury{color:#0E6E60;}
.sf-section--paper .sf-badge--replay,
.sf-section--paper .sf-badge--gold{color:#8A5A00;}

/* ---------- 按钮 ---------- */
.sf-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding:14px 22px;
  border:var(--edge) solid var(--paper);
  background:transparent;
  color:var(--paper);
  font-family:var(--font-title);
  font-weight:900;
  font-size:15px;
  letter-spacing:.02em;
  line-height:1;
  text-decoration:none;
  cursor:pointer;
  box-shadow:var(--shadow-hard-sm);
  transition:transform var(--dur-fast) var(--ease),box-shadow var(--dur-fast) var(--ease),
             background-color var(--dur-fast) var(--ease),color var(--dur-fast) var(--ease),
             border-color var(--dur-fast) var(--ease);
}
.sf-btn:hover{transform:translateY(-4px);box-shadow:8px 8px 0 0 rgba(0,0,0,.6);}
.sf-btn:active{transform:translateY(0);box-shadow:var(--shadow-hard-sm);}
.sf-btn--red{background:var(--red);border-color:var(--red);color:var(--white);}
.sf-btn--red:hover{background:var(--white);border-color:var(--white);color:var(--ink);}
.sf-btn--gold{background:transparent;border-color:var(--gold);color:var(--gold);}
.sf-btn--gold:hover{background:var(--gold);color:var(--ink);}
.sf-btn--cyan{background:transparent;border-color:var(--cyan);color:var(--cyan);}
.sf-btn--cyan:hover{background:var(--cyan);color:var(--ink);}
.sf-btn--block{width:100%;}

/* ---------- 徽标 ---------- */
.sf-badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 8px;
  border:2px solid currentColor;
  font-family:var(--font-data);
  font-size:11px;
  font-weight:700;
  letter-spacing:.14em;
  text-transform:uppercase;
  line-height:1.2;
  white-space:nowrap;
}
.sf-badge--report{color:var(--red);}
.sf-badge--injury{color:var(--cyan);}
.sf-badge--replay{color:var(--gold);}
.sf-badge--gold{color:var(--gold);}

/* ---------- 卡片 ---------- */
.sf-card{
  --accent:var(--red);
  position:relative;
  display:flex;
  flex-direction:column;
  gap:12px;
  padding:clamp(18px,2.4vw,28px);
  background:var(--graphite);
  border:var(--edge) solid var(--hair-strong);
  box-shadow:8px 8px 0 0 rgba(0,0,0,.55);
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.sf-card::before{content:"";position:absolute;inset:-3px -3px auto -3px;height:6px;background:var(--accent);}
.sf-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hard-lg);border-color:var(--accent);}
.sf-card--report{--accent:var(--red);}
.sf-card--injury{--accent:var(--cyan);}
.sf-card--replay{--accent:var(--gold);}
.sf-card__title{font-family:var(--font-title);font-size:1.2rem;font-weight:900;line-height:1.16;letter-spacing:-.02em;color:var(--white);}
.sf-card__meta{font-family:var(--font-data);font-size:12px;font-weight:700;letter-spacing:.08em;color:var(--gray);}

/* ---------- 网格 ---------- */
.sf-grid{display:grid;gap:clamp(16px,2vw,28px);}
.sf-grid--2{grid-template-columns:repeat(2,minmax(0,1fr));}
.sf-grid--3{grid-template-columns:repeat(3,minmax(0,1fr));}
.sf-grid--4{grid-template-columns:repeat(4,minmax(0,1fr));}
.sf-grid--asym{grid-template-columns:minmax(0,7fr) minmax(0,5fr);align-items:start;}

/* ---------- 面包屑 ---------- */
.sf-crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  list-style:none;
  font-family:var(--font-data);
  font-size:12px;
  font-weight:700;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--gray);
}
.sf-crumbs li{display:flex;align-items:center;gap:8px;}
.sf-crumbs li + li::before{content:"/";color:var(--hair-strong);}
.sf-crumbs a{color:var(--gray);text-decoration:none;border-bottom:1px solid transparent;transition:color var(--dur-fast) var(--ease),border-color var(--dur-fast) var(--ease);}
.sf-crumbs a:hover{color:var(--paper);border-bottom-color:var(--red);}
.sf-crumbs [aria-current="page"]{color:var(--paper);}

/* ---------- 长文 ---------- */
.sf-prose{max-width:68ch;font-size:17px;line-height:1.75;}
.sf-prose > * + *{margin-top:1.1em;}
.sf-prose h2{font-size:clamp(1.5rem,2.6vw,2.1rem);margin-top:1.9em;line-height:1.06;}
.sf-prose h3{font-size:1.15rem;margin-top:1.6em;line-height:1.2;}
.sf-prose ul,.sf-prose ol{padding-left:1.25em;}
.sf-prose li + li{margin-top:.4em;}
.sf-prose strong{font-weight:900;color:var(--white);}
.sf-prose a{color:var(--cyan);text-decoration:underline;text-underline-offset:3px;}
.sf-prose--paper{color:#1A1C20;}
.sf-prose--paper strong{color:#0B0C0F;}
.sf-prose--paper a{color:var(--red-deep);}

/* ---------- 图片容器 ---------- */
.sf-figure{display:block;margin:0;}
.sf-figure figcaption{margin-top:10px;font-family:var(--font-data);font-size:12px;letter-spacing:.06em;color:var(--gray);}
.sf-media{
  position:relative;
  overflow:hidden;
  aspect-ratio:16 / 10;
  background-color:var(--turf);
  border:var(--edge) solid var(--graphite);
  box-shadow:var(--shadow-hard);
}
.sf-media::before{
  content:"";
  position:absolute;
  inset:0;
  z-index:1;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(34,224,200,.1) 1px,transparent 1px),
    linear-gradient(90deg,rgba(34,224,200,.1) 1px,transparent 1px);
  background-size:32px 32px;
}
.sf-media > img,
.sf-media > video{width:100%;height:100%;object-fit:cover;}
.sf-media--wide{aspect-ratio:21 / 9;}
.sf-media--tall{aspect-ratio:4 / 5;}
.sf-media--square{aspect-ratio:1 / 1;}
.sf-media__tag{
  position:absolute;
  left:0;
  bottom:0;
  z-index:2;
  padding:6px 10px;
  background:var(--red);
  color:var(--white);
  font-family:var(--font-data);
  font-size:11px;
  font-weight:700;
  letter-spacing:.14em;
}

/* ---------- 横向时间轴 ---------- */
.sf-track{
  display:flex;
  gap:clamp(14px,1.6vw,20px);
  overflow-x:auto;
  scroll-snap-type:x mandatory;
  padding:4px 4px 16px;
  scrollbar-color:var(--red) var(--graphite);
  cursor:grab;
}
.sf-track > *{flex:0 0 clamp(240px,26vw,320px);scroll-snap-align:start;}
.sf-track.is-dragging{cursor:grabbing;scroll-snap-type:none;}
.sf-track::-webkit-scrollbar{height:8px;}
.sf-track::-webkit-scrollbar-track{background:var(--graphite);}
.sf-track::-webkit-scrollbar-thumb{background:var(--red);}

/* ---------- 滚动显现 ---------- */
.sf-reveal{opacity:0;transform:translateY(18px);transition:opacity var(--dur) var(--ease),transform var(--dur) var(--ease);}
.sf-reveal.is-in{opacity:1;transform:none;}

/* ============================================================
   头部：跳转 / 进度 / 移动顶栏 / 抽屉 / 侧边轨道
   ============================================================ */
.sf-header{position:relative;display:block;}

.sf-skip{
  position:absolute;
  left:-9999px;
  top:0;
  z-index:120;
  padding:12px 18px;
  background:var(--cyan);
  color:var(--ink);
  font-family:var(--font-data);
  font-size:13px;
  font-weight:700;
  letter-spacing:.1em;
  text-decoration:none;
  border:var(--edge) solid var(--ink);
}
.sf-skip:focus,
.sf-skip:focus-visible{left:12px;top:12px;}

.sf-progress{
  position:fixed;
  top:0;
  left:0;
  right:0;
  height:2px;
  z-index:100;
  background:rgba(245,242,236,.1);
  pointer-events:none;
}
.sf-progress__bar{
  display:block;
  width:100%;
  height:100%;
  transform:scaleX(0);
  transform-origin:0 50%;
  background:linear-gradient(90deg,var(--red),var(--cyan));
}

.sf-topbar{
  position:fixed;
  top:0;
  left:0;
  right:0;
  height:56px;
  z-index:90;
  display:flex;
  align-items:center;
  gap:12px;
  padding:0 12px;
  background:var(--ink);
  border-bottom:var(--edge) solid var(--graphite);
}
.sf-topbar__brand{
  display:flex;
  align-items:center;
  gap:8px;
  font-family:var(--font-title);
  font-weight:900;
  font-size:16px;
  letter-spacing:-.01em;
  color:var(--white);
  text-decoration:none;
}
.sf-topbar__dot{
  width:9px;
  height:9px;
  border-radius:50%;
  background:var(--red);
  animation:sf-pulse 1.6s var(--ease) infinite;
}
.sf-topbar__meta{
  margin-left:auto;
  font-family:var(--font-data);
  font-size:11px;
  font-weight:700;
  letter-spacing:.12em;
  color:var(--gray);
  white-space:nowrap;
}

.sf-drawer-btn{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:8px 12px;
  background:var(--graphite);
  border:var(--edge) solid var(--hair-strong);
  color:var(--paper);
  font-family:var(--font-data);
  font-size:11px;
  font-weight:700;
  letter-spacing:.14em;
  cursor:pointer;
  transition:border-color var(--dur-fast) var(--ease),transform var(--dur-fast) var(--ease);
}
.sf-drawer-btn:hover{border-color:var(--red);transform:translateY(-2px);}
.sf-drawer-btn__bars{display:block;width:18px;}
.sf-drawer-btn__bars i{display:block;height:2px;margin:4px 0;background:var(--red);}
.sf-drawer-btn__bars i:nth-child(2){width:12px;background:var(--cyan);}
.sf-drawer-btn__bars i:nth-child(3){width:18px;background:var(--paper);}
.sf-drawer-btn__label{letter-spacing:.14em;}

.sf-scrim{
  position:fixed;
  inset:0;
  z-index:65;
  background:var(--ink-72);
  border:0;
}

.sf-rail{
  position:fixed;
  top:0;
  left:0;
  bottom:0;
  z-index:70;
  display:flex;
  flex-direction:column;
  width:var(--rail-w);
  background:var(--ink);
  border-right:var(--edge) solid var(--graphite);
  overflow:hidden;
  transition:width var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.sf-rail.is-scrolled{border-right-color:var(--red-deep);}

.sf-rail__brand{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:10px;
  padding:18px 6px 16px;
  border-bottom:1px solid var(--hair);
  text-decoration:none;
}
.sf-rail__pulse{
  width:10px;
  height:10px;
  border-radius:50%;
  background:var(--red);
  animation:sf-pulse 1.6s var(--ease) infinite;
}
.sf-rail__brand-text{
  display:flex;
  flex-direction:column;
  align-items:center;
  font-family:var(--font-title);
  font-weight:900;
  font-size:17px;
  line-height:1.05;
  letter-spacing:.02em;
  color:var(--white);
}
.sf-rail__brand-meta{
  writing-mode:vertical-rl;
  font-family:var(--font-data);
  font-size:9px;
  font-weight:700;
  letter-spacing:.28em;
  text-transform:uppercase;
  color:var(--gray);
}

.sf-rail__nav{flex:1 1 auto;overflow-y:auto;overflow-x:hidden;padding:10px 0;}
.sf-nav{display:flex;flex-direction:column;gap:6px;list-style:none;}
.sf-nav-link{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:center;
  gap:12px;
  margin:0 10px;
  padding:14px 10px;
  border:var(--edge) solid transparent;
  color:var(--gray);
  text-decoration:none;
  transition:background-color var(--dur-fast) var(--ease),color var(--dur-fast) var(--ease),
             border-color var(--dur-fast) var(--ease),transform var(--dur-fast) var(--ease);
}
.sf-nav-link__index{font-family:var(--font-data);font-size:12px;font-weight:700;letter-spacing:.06em;}
.sf-nav-link__label{
  font-family:var(--font-title);
  font-weight:900;
  font-size:15px;
  letter-spacing:.01em;
  white-space:nowrap;
  max-width:0;
  opacity:0;
  overflow:hidden;
  transition:opacity var(--dur-fast) var(--ease),max-width var(--dur) var(--ease);
}
.sf-nav-link:hover{color:var(--white);border-color:var(--hair-strong);background:rgba(227,22,43,.14);}
.sf-nav-link[aria-current="page"]{
  background:var(--red);
  border-color:var(--red);
  color:var(--paper);
  box-shadow:var(--shadow-hard-sm);
}
.sf-nav-link[aria-current="page"] .sf-nav-link__index{color:var(--paper);}
.sf-nav-link[aria-current="page"]:hover{transform:none;}

.sf-rail__foot{padding:14px 10px 20px;border-top:1px solid var(--hair);}
.sf-rail__cta{
  display:flex;
  align-items:center;
  justify-content:center;
  width:64px;
  min-height:160px;
  margin-inline:auto;
  padding:14px 8px;
  writing-mode:vertical-rl;
  font-size:13px;
  letter-spacing:.18em;
}

/* ============================================================
   页脚
   ============================================================ */
.sf-footer{
  position:relative;
  background:var(--ink);
  color:var(--paper);
  border-top:var(--edge) solid var(--red);
  padding-block:clamp(40px,5vw,72px) clamp(24px,3vw,40px);
}
.sf-footer__grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1.5fr 1fr;
  gap:clamp(20px,3vw,44px);
}
.sf-footer__col{min-width:0;}
.sf-footer__brand{
  font-family:var(--font-title);
  font-weight:900;
  font-size:clamp(1.4rem,2.6vw,2rem);
  line-height:1;
  letter-spacing:-.04em;
  color:var(--white);
}
.sf-footer__status{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  margin-top:14px;
  font-size:14px;
  line-height:1.6;
  color:var(--gray);
}
.sf-footer__tagline{margin-top:14px;max-width:34ch;font-size:14px;line-height:1.7;color:var(--gray);}
.sf-footer__title{
  margin-bottom:14px;
  font-family:var(--font-data);
  font-size:12px;
  font-weight:700;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--paper);
}
.sf-footer__list{
  display:flex;
  flex-direction:column;
  gap:10px;
  list-style:none;
  font-size:14px;
  line-height:1.65;
  color:var(--gray);
}
.sf-footer__list a{
  color:var(--gray);
  text-decoration:none;
  border-bottom:1px solid transparent;
  transition:color var(--dur-fast) var(--ease),border-color var(--dur-fast) var(--ease);
}
.sf-footer__list a:hover{color:var(--white);border-bottom-color:var(--red);}
.sf-footer__value{font-family:var(--font-data);font-size:13px;font-weight:700;letter-spacing:.02em;color:var(--paper);}
.sf-footer__bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:14px 24px;
  margin-top:clamp(28px,4vw,48px);
  padding-top:20px;
  border-top:1px solid var(--hair);
  font-family:var(--font-data);
  font-size:12px;
  letter-spacing:.08em;
  color:var(--gray);
}
.sf-footer__copy,.sf-footer__note{font-size:12px;}

/* ============================================================
   响应式
   ============================================================ */
@media (min-width:1024px){
  body{padding-left:var(--rail-w);}
  .sf-topbar{display:none;}
  .sf-rail:hover,
  .sf-rail:focus-within{width:var(--rail-open);box-shadow:14px 0 0 0 rgba(0,0,0,.5);}
  .sf-rail:hover .sf-nav-link,
  .sf-rail:focus-within .sf-nav-link{justify-content:flex-start;}
  .sf-rail:hover .sf-nav-link__label,
  .sf-rail:focus-within .sf-nav-link__label{opacity:1;max-width:170px;}
  .sf-rail:hover .sf-rail__cta,
  .sf-rail:focus-within .sf-rail__cta{
    writing-mode:horizontal-tb;
    width:100%;
    min-height:0;
    margin-inline:0;
    padding:14px 12px;
    letter-spacing:.06em;
  }
}

@media (max-width:1023px){
  body{padding-top:56px;}
  .sf-rail{
    width:min(84vw,340px);
    padding-top:56px;
    z-index:70;
    transform:translateX(-104%);
    border-right:var(--edge) solid var(--red-deep);
    transition:transform 280ms var(--ease);
  }
  .sf-rail[data-open]{transform:translateX(0);}
  .sf-rail__brand{display:none;}
  .sf-rail__nav{padding-top:6px;}
  .sf-nav-link{justify-content:flex-start;}
  .sf-nav-link__label{opacity:1;max-width:180px;}
  .sf-rail__cta{
    writing-mode:horizontal-tb;
    width:100%;
    min-height:0;
    margin-inline:0;
    padding:14px 12px;
    letter-spacing:.06em;
  }
  .sf-grid--3,.sf-grid--4{grid-template-columns:repeat(2,minmax(0,1fr));}
  .sf-grid--asym{grid-template-columns:1fr;}
  .sf-footer__grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}

@media (max-width:639px){
  .sf-grid--2,.sf-grid--3,.sf-grid--4{grid-template-columns:1fr;}
  .sf-footer__grid{grid-template-columns:1fr;}
  .sf-track > *{flex:0 0 78vw;}
  .sf-card{box-shadow:6px 6px 0 0 rgba(0,0,0,.5);}
}

@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .sf-reveal{opacity:1;transform:none;}
  .sf-btn:hover,.sf-card:hover,.sf-drawer-btn:hover{transform:none;}
}