/* ==========================================================================
   凤凰体育赛事 · 共享样式 /assets/site.css
   火羽 + 数据流：碳黑长卷、炽橙焦点、冷青对比、1px 精密网格
   ========================================================================== */

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,h5,h6,p,ul,ol,li,figure,figcaption,blockquote,dl,dt,dd{margin:0;padding:0}
ul,ol{list-style:none}
a{color:inherit}
button,input,select,textarea{font:inherit;color:inherit}
img,svg,video{display:block;max-width:100%}
table{border-collapse:collapse;width:100%}

:root{
  --fh-carbon:#0A0B0D;
  --fh-ink:#14171B;
  --fh-iron:#2A2F36;
  --fh-flame:#FF5A1F;
  --fh-ember:#C2151B;
  --fh-amber:#FFB347;
  --fh-cyan:#2FE0D6;
  --fh-teal:#0E6B70;
  --fh-bone:#F4F1EC;
  --fh-mist:#98A0A8;

  --fh-font-sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --fh-font-mono:"JetBrains Mono","DIN Alternate",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;

  --fh-wrap:1240px;
  --fh-gutter:clamp(18px,4vw,54px);
  --fh-nav-h:68px;
  --fh-brand-h:42px;
  --fh-line:1px solid var(--fh-iron);
  --fh-ease:cubic-bezier(.2,.7,.2,1);
}

/* --- 基底 --- */
body{
  font-family:var(--fh-font-sans);
  font-size:16px;
  line-height:1.8;
  color:var(--fh-bone);
  background-color:var(--fh-carbon);
  background-image:
    radial-gradient(circle at 16% -12%, rgba(255,90,31,.16), rgba(255,90,31,0) 52%),
    radial-gradient(circle at 94% 6%, rgba(47,224,214,.10), rgba(47,224,214,0) 46%),
    radial-gradient(circle at 50% 120%, rgba(194,21,27,.14), rgba(194,21,27,0) 60%),
    repeating-linear-gradient(0deg, rgba(244,241,236,.018) 0 1px, rgba(244,241,236,0) 1px 4px);
  background-attachment:fixed;
  min-height:100vh;
}
h1,h2,h3,h4,h5,h6{font-weight:900;line-height:1.1;letter-spacing:-.01em}
p{overflow-wrap:break-word}
:focus-visible{outline:2px solid var(--fh-cyan);outline-offset:3px}

/* --- 通用容器与排版 --- */
.fh-wrap{width:100%;max-width:var(--fh-wrap);margin-inline:auto;padding-inline:var(--fh-gutter)}
.fh-section{position:relative;padding-block:clamp(56px,8vw,120px)}
[data-section]{scroll-margin-top:130px}
.fh-eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--fh-font-mono);font-size:12px;letter-spacing:.32em;
  color:var(--fh-mist);text-transform:uppercase;
}
.fh-eyebrow::before{content:"";width:26px;height:2px;background:var(--fh-flame);transform:skewX(-18deg)}
.fh-display{
  font-size:clamp(2.6rem,7vw,6.4rem);
  font-weight:900;letter-spacing:-.02em;line-height:1.02;
  color:var(--fh-bone);transform:skewX(-7deg);transform-origin:left bottom;
}
.fh-prose{max-width:38em;line-height:1.8;color:rgba(244,241,236,.86)}
.fh-annotation{
  writing-mode:vertical-rl;text-orientation:mixed;
  font-size:12px;letter-spacing:.32em;color:var(--fh-mist);
}
.fh-data{font-family:var(--fh-font-mono);font-variant-numeric:tabular-nums;letter-spacing:-.01em}

/* --- 网格 --- */
.fh-grid{display:grid;gap:clamp(20px,3vw,40px)}
.fh-grid--7-5{grid-template-columns:7fr 5fr}
.fh-grid--8-4{grid-template-columns:8fr 4fr}

/* --- 卡片 / 标签 / 按钮 --- */
.fh-card{
  position:relative;background:var(--fh-ink);border:var(--fh-line);
  padding:clamp(18px,2.4vw,28px);
  transition:transform .3s var(--fh-ease),border-color .3s var(--fh-ease),background .3s var(--fh-ease);
}
.fh-card:hover{transform:translateY(-6px);border-color:var(--fh-cyan)}
.fh-card--float{transform:translateY(-24px)}
.fh-card--float:hover{transform:translateY(-30px)}
.fh-tag{
  display:inline-block;padding:4px 10px;font-size:11px;letter-spacing:.2em;
  color:var(--fh-cyan);border:1px solid rgba(47,224,214,.4);background:rgba(47,224,214,.07);
}
.fh-btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:13px 26px;border:0;cursor:pointer;text-decoration:none;
  font-size:15px;font-weight:800;letter-spacing:.1em;
  background:var(--fh-flame);color:var(--fh-carbon);
  clip-path:polygon(10px 0,100% 0,100% calc(100% - 10px),calc(100% - 10px) 100%,0 100%,0 10px);
  transition:transform .25s var(--fh-ease),background .25s var(--fh-ease);
}
.fh-btn:hover{transform:translateY(-3px);background:var(--fh-amber)}
.fh-btn--ghost{background:transparent;color:var(--fh-cyan);box-shadow:inset 0 0 0 1px rgba(47,224,214,.55)}
.fh-btn--ghost:hover{background:rgba(47,224,214,.12);color:var(--fh-cyan)}
.fh-btn--hot{background:var(--fh-ember);color:var(--fh-bone)}
.fh-btn--hot:hover{background:var(--fh-flame);color:var(--fh-carbon)}

/* --- 面包屑 --- */
.fh-breadcrumb{padding-block:18px}
.fh-breadcrumb__list{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-family:var(--fh-font-mono);font-size:12px;letter-spacing:.16em;color:var(--fh-mist);
}
.fh-breadcrumb__item a{color:var(--fh-mist);text-decoration:none;border-bottom:1px solid transparent;transition:.2s}
.fh-breadcrumb__item a:hover{color:var(--fh-cyan);border-bottom-color:rgba(47,224,214,.6)}
.fh-breadcrumb__item[aria-current="page"]{color:var(--fh-bone)}
.fh-breadcrumb__sep{color:var(--fh-iron)}

/* --- 媒体容器（页面阶段放图，共享外壳不放图） --- */
.fh-media{
  position:relative;display:block;width:100%;overflow:hidden;
  background:linear-gradient(135deg,var(--fh-ink),#0d1014);
  border:var(--fh-line);
}
.fh-media::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(10,11,13,0) 42%,rgba(10,11,13,.8) 100%);
}
.fh-media__img{display:block;width:100%;height:100%;object-fit:cover;filter:saturate(.95) contrast(1.06)}
.fh-media--16x9{aspect-ratio:16/9}
.fh-media--4x3{aspect-ratio:4/3}
.fh-media--3x2{aspect-ratio:3/2}
.fh-media--1x1{aspect-ratio:1/1}
.fh-media__caption{
  position:absolute;left:0;bottom:0;z-index:2;
  padding:10px 14px;font-size:12px;letter-spacing:.16em;color:var(--fh-mist);
}

/* --- 左缘坐标索引 --- */
.fh-rail{
  position:fixed;left:16px;top:50%;transform:translateY(-50%);z-index:40;
  display:none;flex-direction:column;gap:14px;
}
.fh-rail__item{
  display:flex;align-items:center;gap:9px;text-decoration:none;
  font-family:var(--fh-font-mono);font-size:11px;letter-spacing:.2em;color:var(--fh-mist);
  transition:color .25s var(--fh-ease);
}
.fh-rail__dot{width:14px;height:1px;background:var(--fh-iron);transition:width .25s var(--fh-ease),background .25s var(--fh-ease)}
.fh-rail__item:hover{color:var(--fh-bone)}
.fh-rail__item.is-active{color:var(--fh-flame)}
.fh-rail__item.is-active .fh-rail__dot{width:28px;background:var(--fh-flame);box-shadow:0 0 10px rgba(255,90,31,.85)}

/* --- 显现动效协议 --- */
[data-reveal]{
  opacity:0;transform:translateY(24px);
  transition:opacity .6s var(--fh-ease),transform .6s var(--fh-ease);
  transition-delay:var(--fh-delay,0ms);
}
[data-reveal].is-inview{opacity:1;transform:none}

/* ==========================================================================
   头部：双层信息导航
   ========================================================================== */
.fh-header{
  position:sticky;top:0;z-index:60;
  background:linear-gradient(180deg,rgba(10,11,13,.98),rgba(10,11,13,.92));
  border-bottom:1px solid var(--fh-iron);
  backdrop-filter:blur(6px);
}
.fh-skip{
  position:absolute;left:14px;top:-70px;z-index:90;
  padding:10px 18px;background:var(--fh-amber);color:var(--fh-carbon);
  font-weight:800;font-size:14px;letter-spacing:.08em;text-decoration:none;
  transition:top .22s var(--fh-ease);
}
.fh-skip:focus{top:10px}

.fh-brandline{
  background:linear-gradient(90deg,rgba(14,107,112,.62),rgba(14,107,112,.14) 62%,rgba(14,107,112,0));
  border-bottom:1px solid rgba(47,224,214,.2);
  overflow:hidden;max-height:70px;opacity:1;
  transition:max-height .32s var(--fh-ease),opacity .24s var(--fh-ease),border-color .24s;
}
.fh-header.is-compact .fh-brandline{max-height:0;opacity:0;border-color:transparent}
.fh-brandline__inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:20px;min-height:var(--fh-brand-h);padding-block:7px;
}
.fh-brandline__id{
  display:flex;align-items:center;gap:12px;
  font-size:12px;letter-spacing:.18em;color:var(--fh-bone);
}
.fh-brandline__name{font-weight:900;letter-spacing:.16em}
.fh-brandline__tag{color:var(--fh-mist);letter-spacing:.06em}
.fh-brandline__quick{display:flex;align-items:center;gap:20px;font-size:12px}
.fh-quick{
  color:var(--fh-mist);text-decoration:none;letter-spacing:.16em;
  border-bottom:1px solid transparent;transition:color .22s var(--fh-ease),border-color .22s var(--fh-ease);
}
.fh-quick:hover{color:var(--fh-cyan);border-bottom-color:rgba(47,224,214,.7)}
.fh-quick--hot{color:var(--fh-amber);border-bottom-color:rgba(255,179,71,.45)}
.fh-quick--hot:hover{color:var(--fh-flame);border-bottom-color:var(--fh-flame)}

.fh-mark{
  display:inline-block;width:10px;height:17px;flex:none;
  background:linear-gradient(180deg,var(--fh-amber),var(--fh-flame) 45%,var(--fh-ember));
  clip-path:polygon(50% 0,100% 36%,64% 100%,0 62%);
  transform:skewX(-12deg);
  box-shadow:0 0 12px rgba(255,90,31,.65);
}
.fh-mark--sm{width:8px;height:13px}

.fh-navbar{background:transparent}
.fh-navbar__inner{
  display:flex;align-items:center;gap:clamp(14px,2.6vw,38px);
  min-height:var(--fh-nav-h);
  transition:min-height .3s var(--fh-ease);
}
.fh-header.is-compact .fh-navbar__inner{min-height:56px}
.fh-navbar__brand{
  display:none;flex:none;text-decoration:none;
  font-size:15px;font-weight:900;letter-spacing:.12em;color:var(--fh-bone);
}
.fh-header.is-compact .fh-navbar__brand{display:inline-block}
.fh-nav{margin-left:auto}
.fh-nav__list{display:flex;align-items:center;gap:clamp(2px,1vw,12px)}
.fh-nav__item{display:flex}
.fh-nav__link{
  position:relative;display:inline-flex;align-items:center;
  padding:0 14px;min-height:44px;
  font-size:15px;letter-spacing:.08em;color:var(--fh-mist);
  text-decoration:none;white-space:nowrap;
  transition:color .22s var(--fh-ease);
}
.fh-nav__link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:10px;height:1px;
  background:var(--fh-flame);transform:scaleX(0);transform-origin:left;
  transition:transform .26s var(--fh-ease);
}
.fh-nav__link:hover{color:var(--fh-bone)}
.fh-nav__link:hover::after{transform:scaleX(1)}
.fh-nav__link[aria-current="page"]{color:var(--fh-bone);font-weight:800}
.fh-nav__link[aria-current="page"]::after{
  transform:scaleX(1);
  box-shadow:0 0 10px rgba(255,90,31,.85);
}

.fh-burger{
  display:none;margin-left:auto;flex:none;
  width:48px;height:44px;padding:0;
  flex-direction:column;align-items:center;justify-content:center;gap:6px;
  background:rgba(20,23,27,.9);border:1px solid var(--fh-iron);cursor:pointer;
  transition:border-color .22s var(--fh-ease),background .22s var(--fh-ease);
}
.fh-burger:hover{border-color:var(--fh-flame)}
.fh-burger__bar{display:block;width:20px;height:1px;background:var(--fh-bone);transition:transform .25s var(--fh-ease),background .25s}
.fh-burger[aria-expanded="true"]{border-color:var(--fh-flame)}
.fh-burger[aria-expanded="true"] .fh-burger__bar{background:var(--fh-flame)}
.fh-burger[aria-expanded="true"] .fh-burger__bar:first-child{transform:translateY(3px) rotate(45deg)}
.fh-burger[aria-expanded="true"] .fh-burger__bar:last-child{transform:translateY(-4px) rotate(-45deg)}

.fh-progress{
  position:absolute;left:0;right:0;bottom:0;height:2px;
  background:rgba(42,47,54,.55);overflow:hidden;
}
.fh-progress__bar{
  display:block;height:100%;width:0;
  background:linear-gradient(90deg,var(--fh-ember),var(--fh-flame) 52%,var(--fh-cyan));
  transition:width .1s linear;
}

/* ==========================================================================
   页脚：三段收口
   ========================================================================== */
.fh-footer{
  position:relative;
  margin-top:clamp(80px,10vw,160px);
  border-top:1px solid rgba(194,21,27,.55);
  background-color:var(--fh-carbon);
  background-image:linear-gradient(180deg,rgba(10,11,13,0) 0%,rgba(194,21,27,.12) 22%,rgba(194,21,27,.32) 100%);
}
.fh-footer::before{
  content:"";position:absolute;left:0;right:0;top:-1px;height:3px;
  background:linear-gradient(90deg,var(--fh-ember),var(--fh-flame) 42%,var(--fh-amber) 66%,rgba(255,179,71,0) 100%);
}
.fh-footer__inner{
  display:grid;gap:clamp(30px,4vw,56px);
  padding-block:clamp(46px,6vw,86px) 36px;
}

.fh-footer__paths{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px}
.fh-pathcard{
  position:relative;display:grid;gap:8px;
  padding:22px 62px 22px 26px;
  background:var(--fh-ink);border:1px solid var(--fh-iron);border-left:3px solid var(--fh-cyan);
  color:var(--fh-bone);text-decoration:none;
  transition:transform .26s var(--fh-ease),background .26s var(--fh-ease),border-color .26s var(--fh-ease);
}
.fh-pathcard--hot{border-left-color:var(--fh-flame)}
.fh-pathcard:hover,.fh-pathcard:focus-visible{transform:translateY(-4px);background:#171b20}
.fh-pathcard:hover{border-color:var(--fh-cyan)}
.fh-pathcard--hot:hover{border-color:var(--fh-flame)}
.fh-pathcard__label{font-size:19px;font-weight:900;letter-spacing:.06em}
.fh-pathcard__desc{font-size:13px;line-height:1.7;color:var(--fh-mist)}
.fh-pathcard__arrow{
  position:absolute;right:22px;top:20px;
  font-family:var(--fh-font-mono);font-size:18px;color:var(--fh-flame);
  transition:transform .26s var(--fh-ease);
}
.fh-pathcard:hover .fh-pathcard__arrow{transform:translateX(5px)}

.fh-footer__nav{border-top:1px solid rgba(42,47,54,.85);border-bottom:1px solid rgba(42,47,54,.85);padding-block:22px}
.fh-feathers{display:flex;flex-wrap:wrap;gap:10px}
.fh-feathers__item{
  transform:skewX(-12deg);
  background:linear-gradient(180deg,rgba(42,47,54,.92),rgba(20,23,27,.92));
  border:1px solid rgba(255,90,31,.2);
  transition:background .26s var(--fh-ease),transform .26s var(--fh-ease),border-color .26s var(--fh-ease);
}
.fh-feathers__item:hover{
  background:linear-gradient(180deg,rgba(194,21,27,.92),rgba(255,90,31,.4));
  border-color:rgba(255,179,71,.7);
  transform:skewX(-12deg) translateY(-3px);
}
.fh-feathers a{display:block;padding:9px 20px;font-size:14px;letter-spacing:.14em;color:var(--fh-bone);text-decoration:none}
.fh-feathers a span{display:block;transform:skewX(12deg)}

.fh-footer__meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px 40px;
  font-size:13px;color:var(--fh-mist);
}
.fh-footer__brand{display:flex;align-items:center;gap:10px;color:var(--fh-bone);font-weight:800;letter-spacing:.1em}
.fh-footer__brandname{font-weight:900}
.fh-footer__region{color:var(--fh-mist);font-weight:400;letter-spacing:.02em}
.fh-footer__links{display:flex;flex-wrap:wrap;gap:18px}
.fh-footer__links a{
  color:var(--fh-mist);text-decoration:none;
  border-bottom:1px solid transparent;
  transition:color .22s var(--fh-ease),border-color .22s var(--fh-ease);
}
.fh-footer__links a:hover{color:var(--fh-amber);border-bottom-color:var(--fh-amber)}
.fh-footer__contact{display:flex;flex-wrap:wrap;gap:4px 26px;color:var(--fh-mist)}
.fh-footer__contact p{display:flex;flex-wrap:wrap;gap:8px}
.fh-footer__contact .fh-data{color:var(--fh-bone)}
.fh-footer__legal{
  width:100%;margin-top:6px;padding-top:16px;
  border-top:1px solid rgba(42,47,54,.7);
  font-family:var(--fh-font-mono);font-size:12px;letter-spacing:.06em;color:var(--fh-mist);
}

/* ==========================================================================
   响应式
   ========================================================================== */
@media (min-width:1280px){
  .fh-rail{display:flex}
}

@media (max-width:1100px){
  .fh-brandline__tag{display:none}
}

@media (max-width:960px){
  :root{--fh-nav-h:60px}
  .fh-navbar__brand{display:inline-block}
  .fh-burger{display:flex}
  .fh-nav__list{gap:0}
  .fh-nav__link{padding:0 10px;font-size:14px}

  .fh-nav{
    position:fixed;top:0;right:0;bottom:0;z-index:70;
    width:min(88vw,360px);
    margin-left:0;padding:104px 26px 40px;
    overflow-y:auto;
    background:linear-gradient(180deg,rgba(20,23,27,.99),rgba(10,11,13,.99));
    border-left:1px solid var(--fh-iron);
    transform:translateX(102%);opacity:0;visibility:hidden;
    transition:transform .34s var(--fh-ease),opacity .24s var(--fh-ease),visibility .24s var(--fh-ease);
  }
  .fh-nav[data-open]{transform:translateX(0);opacity:1;visibility:visible}
  .fh-nav__list{flex-direction:column;align-items:stretch}
  .fh-nav__item{border-bottom:1px solid rgba(42,47,54,.75)}
  .fh-nav__link{width:100%;min-height:56px;padding:16px 4px;font-size:17px;letter-spacing:.1em}
  .fh-nav__link::after{left:4px;right:auto;bottom:12px;width:28px}
  .fh-nav[data-open] .fh-nav__item{animation:fh-drawer-in .3s var(--fh-ease) both}
  .fh-nav[data-open] .fh-nav__item:nth-child(2){animation-delay:.04s}
  .fh-nav[data-open] .fh-nav__item:nth-child(3){animation-delay:.08s}
  .fh-nav[data-open] .fh-nav__item:nth-child(4){animation-delay:.12s}
  .fh-nav[data-open] .fh-nav__item:nth-child(5){animation-delay:.16s}
  .fh-nav[data-open] .fh-nav__item:nth-child(6){animation-delay:.2s}

  .fh-grid--7-5,.fh-grid--8-4{grid-template-columns:1fr}
  .fh-card--float{transform:none}
  .fh-card--float:hover{transform:translateY(-6px)}
  [data-section]{scroll-margin-top:96px}
}

@media (max-width:640px){
  .fh-brandline__inner{flex-direction:column;align-items:flex-start;gap:6px;padding-block:10px}
  .fh-brandline__quick{gap:16px}
  .fh-display{transform:skewX(-5deg)}
  .fh-footer__meta{flex-direction:column;align-items:flex-start;gap:12px}
  .fh-footer__legal{font-size:11px}
}

@keyframes fh-drawer-in{
  from{opacity:0;transform:translateX(16px)}
  to{opacity:1;transform:none}
}

/* ==========================================================================
   减少动效
   ========================================================================== */
@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}
  .fh-nav{transition:none}
  .fh-card:hover,.fh-card--float:hover,.fh-pathcard:hover{transform:none}
}