/* ==========================================================================
   浩瀚体育官网 · 共享样式 /assets/site.css
   深海夜幕底 · 荧光青主调 · 信号橙位移提示 · 切角面板语言
   ========================================================================== */

/* --- 01 设计令牌 --------------------------------------------------------- */
:root{
  --ink:#04121F;
  --ink-2:#082538;
  --panel:#0D3B4F;
  --cyan:#16E0C8;
  --cyan-soft:#8FF3E6;
  --orange:#FF7A29;
  --indigo:#6E4BD6;
  --wine:#8C2E4C;
  --text:#E8F4F8;
  --muted:#9AB4C4;
  --line:#1E4E66;
  --line-soft:rgba(30,78,102,.55);
  --header-h:64px;
  --cut:16px;
  --cut-sm:9px;
  --shell:1440px;
  --gut:20px;
  --s1:24px;
  --s2:40px;
  --s3:72px;
  --font-body:system-ui,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --font-num:"Barlow Condensed","Oswald","Arial Narrow",system-ui,sans-serif;
  --font-mono:"IBM Plex Mono",SFMono-Regular,Consolas,monospace;
  --ease:cubic-bezier(.22,.61,.36,1);
  --cut-panel:polygon(0 0,calc(100% - var(--cut)) 0,100% var(--cut),100% 100%,var(--cut) 100%,0 calc(100% - var(--cut)));
  --cut-chip:polygon(0 0,calc(100% - var(--cut-sm)) 0,100% var(--cut-sm),100% 100%,var(--cut-sm) 100%,0 calc(100% - var(--cut-sm)));
}

/* --- 02 重置 ------------------------------------------------------------- */
*,*::before,*::after{box-sizing:border-box}
html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
  scroll-padding-top:calc(var(--header-h) + 20px);
}
html,body{min-height:100%}
body{
  margin:0;
  background-color:var(--ink);
  color:var(--text);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.75;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  opacity:.5;
  background-image:
    linear-gradient(to right,rgba(30,78,102,.34) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(30,78,102,.34) 1px,transparent 1px);
  background-size:80px 80px;
  -webkit-mask-image:radial-gradient(130% 90% at 50% 0,#000 30%,transparent 100%);
  mask-image:radial-gradient(130% 90% at 50% 0,#000 30%,transparent 100%);
}
main,.site-header,.site-footer{position:relative;z-index:1}
img,svg,picture,video{max-width:100%;display:block}
img{height:auto}
button{font:inherit;color:inherit}
table{border-collapse:collapse}
[hidden]{display:none !important}

/* --- 03 中文排版 --------------------------------------------------------- */
h1,h2,h3,h4,h5{
  margin:0 0 .5em;
  font-weight:900;
  line-height:1.24;
  letter-spacing:.005em;
  color:var(--text);
}
h1{font-size:clamp(31px,4.6vw,54px)}
h2{font-size:clamp(24px,3.1vw,38px)}
h3{font-size:clamp(19px,2.1vw,25px)}
h4{font-size:17px}
p{margin:0 0 1.05em}
ul,ol{margin:0 0 1.05em;padding-left:1.25em}
li{margin:.2em 0}
strong,b{font-weight:700;color:#fff}
small{font-size:13px}
hr{border:0;border-top:1px solid var(--line-soft);margin:var(--s2) 0}
a{color:var(--cyan);text-decoration:none}
a:hover{text-decoration:underline;text-underline-offset:3px}
:focus-visible{outline:2px solid var(--orange);outline-offset:2px}

.num{
  font-family:var(--font-num);
  font-weight:700;
  letter-spacing:-.02em;
  line-height:1;
  font-variant-numeric:tabular-nums;
}
.mono{
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.04em;
  color:var(--muted);
}
.display-num{
  font-family:var(--font-num);
  font-weight:700;
  font-size:clamp(46px,8vw,96px);
  line-height:.88;
  letter-spacing:-.03em;
  color:var(--cyan);
  font-variant-numeric:tabular-nums;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  margin:0 0 14px;
  font-family:var(--font-mono);
  font-size:12.5px;
  letter-spacing:.16em;
  color:var(--cyan);
}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--orange)}

/* --- 04 布局工具 --------------------------------------------------------- */
.shell{
  width:100%;
  max-width:var(--shell);
  margin-inline:auto;
  padding-inline:var(--gut);
}
.section{padding-block:var(--s2)}
.section--wide{padding-block:var(--s3)}
.section--tight{padding-block:var(--s1)}
.stack{display:grid;gap:var(--s1)}
.grid{display:grid;gap:var(--s1)}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid--4{grid-template-columns:repeat(4,minmax(0,1fr))}
.prose{max-width:74ch}
.prose h2{margin-top:var(--s2)}
.prose h3{margin-top:var(--s1)}
.prose ul,.prose ol{padding-left:1.4em}

/* --- 05 切角面板与轨迹装饰 ----------------------------------------------- */
.panel{
  position:relative;
  padding:var(--s1);
  background:var(--ink-2);
  border:1px solid var(--line-soft);
  clip-path:var(--cut-panel);
}
.panel--tint{background:var(--panel);border-color:rgba(22,224,200,.26)}
.panel--indigo{background:rgba(110,75,214,.16);border-color:rgba(110,75,214,.4)}
.panel--wine{background:rgba(140,46,76,.16);border-color:rgba(140,46,76,.4)}
.panel--flush{padding:0}

.trace{position:relative;overflow:hidden}
.trace::after{
  content:"";
  position:absolute;
  right:-10%;
  bottom:-40%;
  width:60%;
  height:140%;
  pointer-events:none;
  background:linear-gradient(115deg,transparent 46%,rgba(22,224,200,.14) 46%,rgba(22,224,200,.14) 47%,transparent 47%);
}
.rule-glow{
  height:1px;
  border:0;
  margin:var(--s2) 0;
  background:linear-gradient(90deg,rgba(22,224,200,.85),rgba(22,224,200,.15) 45%,transparent);
}
.tag-note{
  display:inline-block;
  writing-mode:vertical-rl;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.28em;
  color:var(--muted);
}

/* --- 06 按钮 ------------------------------------------------------------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 20px;
  font-size:14.5px;
  font-weight:700;
  letter-spacing:.03em;
  line-height:1.2;
  color:var(--ink);
  background:var(--cyan);
  border:1px solid transparent;
  cursor:pointer;
  text-decoration:none;
  clip-path:var(--cut-chip);
  transition:background .2s var(--ease),transform .2s var(--ease),color .2s var(--ease);
}
.btn:hover{background:var(--cyan-soft);text-decoration:none;transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn--sm{padding:8px 14px;font-size:13px}
.btn--ghost{background:transparent;border-color:rgba(22,224,200,.55);color:var(--cyan)}
.btn--ghost:hover{background:rgba(22,224,200,.12);color:var(--cyan-soft)}
.btn--orange{background:var(--orange);color:#1B0C02}
.btn--orange:hover{background:#FF9656}

/* --- 07 面包屑 ----------------------------------------------------------- */
.crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  margin:0 0 var(--s1);
  padding:0;
  list-style:none;
  font-family:var(--font-mono);
  font-size:12.5px;
  letter-spacing:.05em;
  color:var(--muted);
}
.crumbs li{margin:0}
.crumbs li+li::before{content:"/";margin-right:8px;color:var(--line)}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--cyan)}
.crumbs [aria-current="page"]{color:var(--text)}

/* --- 08 图片容器基础规则 ------------------------------------------------- */
.media{
  position:relative;
  display:block;
  overflow:hidden;
  background:linear-gradient(140deg,var(--panel),var(--ink-2) 70%);
  clip-path:var(--cut-panel);
}
.media>img,.media>picture>img{
  width:100%;
  height:100%;
  object-fit:cover;
  filter:saturate(1.06) contrast(1.04);
}
.media::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background:linear-gradient(180deg,rgba(4,18,31,0) 45%,rgba(4,18,31,.74) 100%);
}
.media--wide{aspect-ratio:16/9}
.media--std{aspect-ratio:4/3}
.media--square{aspect-ratio:1/1}
.media--portrait{aspect-ratio:3/4}
.media__cap{
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  z-index:2;
  padding:14px 16px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.06em;
  color:var(--cyan-soft);
}

/* --- 09 侧边锚点导航 ----------------------------------------------------- */
.anchor-nav{display:grid;gap:0}
.anchor-nav__link{
  position:relative;
  display:block;
  padding:9px 0 9px 16px;
  font-size:14px;
  color:var(--muted);
  text-decoration:none;
  border-left:1px solid var(--line-soft);
  transition:color .2s var(--ease);
}
.anchor-nav__link::before{
  content:"";
  position:absolute;
  left:-1px;
  top:0;
  bottom:0;
  width:2px;
  background:var(--cyan);
  transform:scaleY(0);
  transform-origin:top;
  transition:transform .28s var(--ease);
}
.anchor-nav__link:hover{color:var(--text);text-decoration:none}
.anchor-nav__link[data-active]{color:var(--cyan)}
.anchor-nav__link[data-active]::before{transform:scaleY(1)}

/* --- 10 滚动显现 --------------------------------------------------------- */
[data-reveal]{
  opacity:0;
  transform:translateY(12px);
  transition:opacity .32s var(--ease),transform .32s var(--ease);
}
[data-reveal].is-in{opacity:1;transform:none}

/* --- 11 头部 ------------------------------------------------------------- */
.skip-link{
  position:absolute;
  left:12px;
  top:-56px;
  z-index:80;
  padding:10px 16px;
  font-weight:700;
  font-size:14px;
  color:var(--ink);
  background:var(--cyan);
  text-decoration:none;
  clip-path:var(--cut-chip);
  transition:top .2s var(--ease);
}
.skip-link:focus{top:10px;text-decoration:none}

.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(4,18,31,.94);
  border-bottom:1px solid var(--line);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
}
.readout-track{
  height:3px;
  background:linear-gradient(90deg,rgba(30,78,102,.85),rgba(30,78,102,.25));
}
.readout-track__bar{
  display:block;
  height:100%;
  width:0;
  background:linear-gradient(90deg,var(--cyan),var(--orange));
  transition:width .15s linear;
}
.site-header__inner{
  display:flex;
  align-items:center;
  gap:12px 20px;
  flex-wrap:wrap;
  min-height:60px;
  padding-block:8px;
}

/* 品牌 */
.brand{
  display:inline-flex;
  align-items:center;
  gap:11px;
  flex:0 0 auto;
  color:var(--text);
  text-decoration:none;
}
.brand:hover{text-decoration:none}
.brand__mark{
  position:relative;
  display:grid;
  place-items:center;
  width:36px;
  height:36px;
  flex:0 0 auto;
  background:var(--panel);
  color:var(--cyan);
  clip-path:var(--cut-chip);
}
.brand__mark::after{
  content:"";
  position:absolute;
  right:0;
  bottom:0;
  width:11px;
  height:11px;
  background:var(--orange);
  clip-path:polygon(100% 0,100% 100%,0 100%);
}
.brand__glyph{font-size:18px;font-weight:900;line-height:1}
.brand__text{display:block}
.brand__name{
  display:block;
  font-size:19px;
  font-weight:900;
  line-height:1.2;
  letter-spacing:.02em;
}
.brand__tag{
  display:block;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.08em;
  color:var(--muted);
}

/* 状态徽标 */
.status-chip{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin:0;
  padding:6px 12px;
  font-size:13px;
  line-height:1.4;
  color:var(--muted);
  background:rgba(13,59,79,.55);
  border:1px solid var(--line-soft);
  clip-path:var(--cut-chip);
  white-space:nowrap;
}
.status-chip__dot{
  width:7px;
  height:7px;
  flex:0 0 auto;
  background:var(--cyan);
  box-shadow:0 0 8px rgba(22,224,200,.9);
}

/* 移动导航按钮 */
.nav-toggle{
  display:none;
  align-items:center;
  gap:9px;
  margin-left:auto;
  padding:9px 13px;
  font-size:13.5px;
  font-weight:700;
  letter-spacing:.04em;
  color:var(--text);
  background:var(--panel);
  border:1px solid var(--line-soft);
  cursor:pointer;
  clip-path:var(--cut-chip);
}
.nav-toggle__bars{display:grid;gap:4px;width:16px}
.nav-toggle__bars i{
  display:block;
  height:2px;
  background:var(--cyan);
  transition:transform .22s var(--ease),opacity .22s var(--ease);
}
.nav-toggle[data-open]{background:rgba(22,224,200,.16);border-color:rgba(22,224,200,.55)}
.nav-toggle[data-open] .nav-toggle__bars i:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[data-open] .nav-toggle__bars i:nth-child(2){opacity:0}
.nav-toggle[data-open] .nav-toggle__bars i:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* 命令栏导航 */
.cmd-nav{
  display:flex;
  align-items:center;
  gap:10px;
  margin-left:auto;
}
.cmd-nav__list{
  display:flex;
  align-items:center;
  gap:2px;
  margin:0;
  padding:0;
  list-style:none;
  counter-reset:nav;
}
.cmd-nav__list li{margin:0}
.cmd-nav__link{
  position:relative;
  display:block;
  padding:10px 12px;
  font-size:14.5px;
  letter-spacing:.02em;
  color:var(--muted);
  text-decoration:none;
  transition:color .2s var(--ease);
}
.cmd-nav__link::before{
  counter-increment:nav;
  content:counter(nav,decimal-leading-zero);
  margin-right:6px;
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.08em;
  color:rgba(30,78,102,1);
  vertical-align:2px;
}
.cmd-nav__link::after{
  content:"";
  position:absolute;
  left:12px;
  right:12px;
  bottom:3px;
  height:2px;
  background:var(--orange);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .24s var(--ease);
}
.cmd-nav__link:hover{color:var(--text);text-decoration:none}
.cmd-nav__link:hover::after,
.cmd-nav__link[aria-current="page"]::after{transform:scaleX(1)}
.cmd-nav__link[aria-current="page"]{color:var(--cyan)}
.cmd-nav__link[aria-current="page"]::before{color:var(--cyan)}
.cmd-nav__cta{flex:0 0 auto}
body[data-nav-lock]{overflow:hidden}

/* --- 12 页脚 ------------------------------------------------------------- */
.site-footer{
  position:relative;
  margin-top:var(--s3);
  background:linear-gradient(180deg,var(--ink-2),var(--ink));
  border-top:1px solid var(--line);
}
.site-footer::before{
  content:"";
  position:absolute;
  top:-1px;
  left:0;
  width:min(300px,45%);
  height:3px;
  background:linear-gradient(90deg,var(--cyan),transparent);
}
.site-footer__inner{
  display:grid;
  gap:36px 40px;
  padding:52px 0 26px;
}
.ft-brand{display:flex;align-items:center;gap:12px}
.ft-brand__mark{
  display:grid;
  place-items:center;
  width:38px;
  height:38px;
  flex:0 0 auto;
  font-size:19px;
  font-weight:900;
  color:var(--cyan);
  background:var(--panel);
  clip-path:var(--cut-chip);
}
.ft-brand__text{display:block}
.ft-brand__name{display:block;font-size:18px;font-weight:900;line-height:1.25}
.ft-brand__tag{
  display:block;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.08em;
  color:var(--muted);
}
.ft-note{
  margin:18px 0 0;
  max-width:34ch;
  font-size:14px;
  line-height:1.7;
  color:var(--muted);
}
.ft-col__title{
  margin:0 0 14px;
  padding-bottom:10px;
  font-family:var(--font-mono);
  font-size:12.5px;
  font-weight:400;
  letter-spacing:.14em;
  color:var(--cyan);
  border-bottom:1px solid var(--line-soft);
}
.ft-col__list{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.ft-col__list li{margin:0}
.ft-link{
  position:relative;
  display:inline-block;
  padding-left:15px;
  font-size:14.5px;
  color:var(--muted);
  text-decoration:none;
  transition:color .2s var(--ease);
}
.ft-link::before{
  content:"";
  position:absolute;
  left:0;
  top:.68em;
  width:6px;
  height:1px;
  background:var(--line);
  transition:width .2s var(--ease),background .2s var(--ease);
}
.ft-link:hover{color:var(--text);text-decoration:none}
.ft-link:hover::before{width:11px;background:var(--orange)}
.ft-contact{
  display:flex;
  flex-wrap:wrap;
  gap:12px 32px;
  margin:0;
  padding:22px 0;
  list-style:none;
  border-top:1px solid var(--line-soft);
  border-bottom:1px solid var(--line-soft);
}
.ft-contact__item{display:flex;align-items:baseline;gap:10px;margin:0;font-size:14px}
.ft-contact__k{
  flex:0 0 auto;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.08em;
  color:var(--cyan);
}
.ft-contact__v{color:var(--muted)}
.ft-block--legal{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:10px 24px;
  padding-top:20px;
  border-top:1px solid var(--line-soft);
}
.ft-legal{
  margin:0;
  font-family:var(--font-mono);
  font-size:12.5px;
  letter-spacing:.04em;
  color:#7C97A8;
}

/* 返回顶部 */
.to-top{
  position:fixed;
  right:20px;
  bottom:20px;
  z-index:40;
  padding:10px 15px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.08em;
  color:var(--ink);
  background:var(--cyan);
  border:0;
  cursor:pointer;
  opacity:0;
  visibility:hidden;
  transform:translateY(8px);
  transition:opacity .24s var(--ease),transform .24s var(--ease),visibility .24s var(--ease);
  clip-path:var(--cut-chip);
}
.to-top[data-visible]{opacity:1;visibility:visible;transform:none}
.to-top:hover{background:var(--cyan-soft)}

/* --- 13 响应式 ----------------------------------------------------------- */
@media (min-width:901px){
  .site-footer__inner{grid-template-columns:minmax(240px,320px) 1fr}
  .ft-block--nav{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
  .ft-block--contact,.ft-block--legal{grid-column:1 / -1}
}
@media (max-width:1180px){
  .status-chip{display:none}
  .cmd-nav__link{padding:10px 9px;font-size:14px}
}
@media (max-width:900px){
  :root{--gut:18px}
  .site-header__inner{flex-wrap:nowrap;min-height:60px;gap:10px}
  .nav-toggle{display:inline-flex}
  .cmd-nav{
    position:fixed;
    top:var(--header-h);
    left:0;
    right:0;
    height:calc(100vh - var(--header-h));
    margin:0;
    padding:16px var(--gut) 36px;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    background:linear-gradient(180deg,var(--ink-2),var(--ink) 65%);
    border-top:1px solid var(--line);
    overflow-y:auto;
    overscroll-behavior:contain;
    z-index:55;
    opacity:0;
    visibility:hidden;
    transform:translateY(-10px);
    transition:opacity .22s var(--ease),transform .22s var(--ease),visibility .22s var(--ease);
  }
  .cmd-nav[data-open]{opacity:1;visibility:visible;transform:none}
  .cmd-nav__list{flex-direction:column;align-items:stretch;gap:0}
  .cmd-nav__link{
    padding:15px 4px;
    font-size:17px;
    border-bottom:1px solid var(--line-soft);
  }
  .cmd-nav__link::before{font-size:11px}
  .cmd-nav__link::after{left:4px;right:auto;width:22px;bottom:0}
  .cmd-nav__cta{margin-top:22px;width:100%}
  .site-footer__inner{gap:30px;padding:40px 0 22px}
  .ft-block--nav{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px 20px}
}
@media (max-width:640px){
  body{font-size:16px}
  :root{--gut:14px}
  .brand__tag{display:none}
  .ft-block--nav{grid-template-columns:1fr}
  .ft-contact{flex-direction:column;gap:12px}
  .to-top{right:14px;bottom:14px;padding:9px 13px}
  .readout-track{height:2px}
}

/* --- 14 动效降级 --------------------------------------------------------- */
@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 !important;transform:none !important}
  .to-top{transform:none !important}
  .readout-track__bar{transition:none !important}
}