/* ============================================================
   完美体育在线 · Victory Live — 共享站点样式 /assets/site.css
   ============================================================ */

:root{
  --ink:#062A24;
  --ink-panel:#0B3B32;
  --ink-deep:#06110F;
  --cyan:#2BF5C8;
  --cyan-mist:#9BFFE9;
  --amber:#FF9F1C;
  --amber-deep:#9A4D00;
  --slate:#8FA6B2;
  --paper:#F7FBF9;
  --paper-2:#DCEAE5;
  --text-light:#D9ECE5;

  --line:rgba(155,255,233,.14);
  --line-strong:rgba(155,255,233,.30);
  --line-dark:rgba(6,17,15,.12);

  --font-display:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-body:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"IBM Plex Mono","Roboto Mono","DIN Alternate",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;

  --w-max:1220px;
  --w-read:44rem;
  --header-h:72px;
  --r-xs:2px;
  --r-sm:6px;
  --r-md:12px;
  --shadow-panel:0 1px 0 rgba(155,255,233,.06), 0 26px 48px -34px rgba(6,17,15,.95);
  --ease:cubic-bezier(.2,.7,.3,1);
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body,h1,h2,h3,h4,h5,p,figure,blockquote,dl,dd{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer;}
a{color:inherit;text-decoration:none;}
img,svg{max-width:100%;display:block;}
table{border-collapse:collapse;width:100%;}

/* ---------- base ---------- */
body{
  background:var(--ink);
  color:var(--text-light);
  font-family:var(--font-body);
  font-size:1rem;
  line-height:1.75;
  letter-spacing:.01em;
  overflow-wrap:break-word;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:800;
  line-height:1.22;
  letter-spacing:.07em;
  color:var(--paper);
}
h1{font-size:clamp(2.4rem,5vw,5rem);letter-spacing:.09em;}
h2{font-size:clamp(1.5rem,2.6vw,2.4rem);}
h3{font-size:clamp(1.125rem,1.5vw,1.4rem);letter-spacing:.06em;}
p{max-width:42em;}
::selection{background:var(--cyan);color:var(--ink-deep);}

:focus-visible{
  outline:2px solid var(--cyan);
  outline-offset:3px;
  border-radius:var(--r-xs);
}

.sr-only{
  position:absolute;width:1px;height:1px;padding:0;margin:-1px;
  overflow:hidden;clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap;
}
.skip-link{
  position:fixed;top:.5rem;left:.5rem;z-index:400;
  padding:.6rem 1rem;border-radius:var(--r-sm);
  background:var(--cyan);color:var(--ink-deep);
  font-weight:700;font-size:.875rem;letter-spacing:.08em;
  transform:translateY(-160%);
  transition:transform .22s var(--ease);
}
.skip-link:focus-visible{transform:none;}

/* ---------- layout ---------- */
.container{
  width:100%;
  max-width:var(--w-max);
  margin-inline:auto;
  padding-inline:clamp(1rem,4vw,2.5rem);
}
#main-content{display:block;padding-top:var(--header-h);}
.bleed-top{margin-top:calc(var(--header-h) * -1);}
.grid-12{
  display:grid;
  grid-template-columns:repeat(12,minmax(0,1fr));
  gap:clamp(1rem,2vw,1.75rem);
}
.stack > * + *{margin-top:clamp(1rem,1.8vw,1.6rem);}

.section{
  padding-block:clamp(3rem,6vw,6rem);
  border-top:1px solid var(--line);
  position:relative;
}
.section--paper{
  background:var(--paper);
  color:var(--ink-deep);
  border-top:1px solid rgba(6,17,15,.10);
}
.section--paper h1,.section--paper h2,.section--paper h3{color:var(--ink-deep);}
.section--paper .eyebrow{color:var(--amber-deep);}
.section--narrow > .container{max-width:min(var(--w-max),78rem);}
.section--narrow p{max-width:var(--w-read);}

.eyebrow{
  display:inline-flex;align-items:center;gap:.5rem;
  font-family:var(--font-mono);
  font-size:.75rem;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--cyan-mist);
}
.eyebrow::before{
  content:"";width:22px;height:1px;background:currentColor;opacity:.8;
}

.mono{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  letter-spacing:.02em;
}

/* ---------- panel ---------- */
.panel{
  background:var(--ink-panel);
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  box-shadow:var(--shadow-panel);
  padding:clamp(1.1rem,2.2vw,1.9rem);
}
.panel > h3 + p{margin-top:.6rem;}

/* ---------- badges / tags ---------- */
.tag{
  display:inline-flex;align-items:center;gap:.35rem;
  padding:.2rem .55rem;
  border:1px solid var(--line-strong);
  border-radius:var(--r-xs);
  font-size:.75rem;
  letter-spacing:.08em;
  color:var(--cyan-mist);
}
.tag--amber{border-color:rgba(255,159,28,.55);color:var(--amber);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
  padding:.72rem 1.15rem;
  border:1px solid transparent;
  border-radius:var(--r-xs);
  font-family:var(--font-display);
  font-weight:700;
  font-size:.9375rem;
  letter-spacing:.08em;
  line-height:1.2;
  transition:transform .2s var(--ease),background-color .2s,border-color .2s,color .2s,box-shadow .2s;
}
.btn:hover{transform:translateY(-1px);}
.btn--primary{background:var(--cyan);border-color:var(--cyan);color:var(--ink-deep);}
.btn--primary:hover{background:var(--cyan-mist);border-color:var(--cyan-mist);box-shadow:0 10px 24px -16px rgba(43,245,200,.9);}
.btn--ghost{background:transparent;border-color:var(--line-strong);color:var(--text-light);}
.btn--ghost:hover{border-color:var(--cyan);color:var(--cyan);}
.btn--amber{background:var(--amber);border-color:var(--amber);color:#2A1500;}
.btn--amber:hover{background:#FFB64D;border-color:#FFB64D;}
.btn--sm{padding:.5rem .85rem;font-size:.8125rem;}
.btn--block{display:flex;width:100%;}

/* ---------- breadcrumbs ---------- */
.breadcrumbs{
  padding-block:1rem;
  font-size:.8125rem;
  color:var(--slate);
}
.breadcrumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:.4rem;}
.breadcrumbs li{display:inline-flex;align-items:center;gap:.4rem;}
.breadcrumbs li + li::before{content:"/";color:rgba(143,166,178,.55);}
.breadcrumbs a{color:var(--text-light);}
.breadcrumbs a:hover{color:var(--cyan);}
.breadcrumbs [aria-current="page"]{color:var(--cyan-mist);}

/* ---------- media frame ---------- */
.media-frame{
  position:relative;
  width:100%;
  overflow:hidden;
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  background:
    radial-gradient(120% 90% at 12% 8%,rgba(43,245,200,.16),transparent 62%),
    radial-gradient(140% 100% at 92% 96%,rgba(255,159,28,.14),transparent 60%),
    var(--ink-panel);
}
.media-frame::after{
  content:"";
  position:absolute;inset:0;
  pointer-events:none;
  background-image:
    linear-gradient(to right,rgba(155,255,233,.09) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(155,255,233,.09) 1px,transparent 1px);
  background-size:34px 34px;
  opacity:.55;
  mix-blend-mode:screen;
}
.media-frame > img{
  width:100%;height:100%;
  object-fit:cover;
  display:block;
  position:relative;z-index:1;
}
.media-frame--16x9{aspect-ratio:16/9;}
.media-frame--4x3{aspect-ratio:4/3;}
.media-frame--1x1{aspect-ratio:1/1;}
.media-frame--wide{aspect-ratio:21/9;}
.media-caption{
  margin-top:.6rem;
  font-size:.8125rem;
  letter-spacing:.04em;
  color:var(--slate);
}
.section--paper .media-caption{color:rgba(6,17,15,.6);}

/* ============================================================
   HEADER
   ============================================================ */
.site-header{
  position:fixed;
  inset-block-start:0;
  inset-inline:0;
  z-index:100;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background-color .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.site-header::before{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,17,15,.62),rgba(6,17,15,0));
  pointer-events:none;
  transition:opacity .3s var(--ease);
}
.site-header[data-scrolled="true"]{
  background:rgba(6,42,36,.94);
  border-bottom-color:var(--line);
  box-shadow:0 18px 40px -34px rgba(6,17,15,1);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
}
.site-header[data-scrolled="true"]::before{opacity:0;}

.header-inner{
  position:relative;
  z-index:2;
  display:flex;
  align-items:center;
  gap:clamp(.75rem,2vw,1.6rem);
  min-height:var(--header-h);
}

.brand{display:inline-flex;align-items:center;gap:.65rem;flex:0 0 auto;}
.brand-mark{
  width:34px;height:34px;
  display:grid;place-items:center;
  border:1px solid var(--line-strong);
  border-radius:var(--r-xs);
  font-family:var(--font-mono);
  font-size:.75rem;
  letter-spacing:.06em;
  color:var(--cyan);
  background:rgba(43,245,200,.07);
  transition:border-color .2s,color .2s,background-color .2s;
}
.brand:hover .brand-mark{border-color:var(--cyan);background:rgba(43,245,200,.16);}
.brand-text{display:flex;flex-direction:column;line-height:1.1;}
.brand-name{
  font-family:var(--font-display);
  font-weight:800;
  font-size:.9375rem;
  letter-spacing:.12em;
  color:var(--paper);
}
.brand-sub{
  font-size:.5625rem;
  letter-spacing:.3em;
  color:var(--slate);
  margin-top:.25rem;
}

/* nav toggle */
.nav-toggle{
  display:none;
  align-items:center;gap:.5rem;
  margin-inline-start:auto;
  padding:.5rem .7rem;
  border:1px solid var(--line-strong);
  border-radius:var(--r-xs);
  color:var(--text-light);
  font-size:.8125rem;
  letter-spacing:.14em;
  transition:border-color .2s,color .2s;
}
.nav-toggle:hover{border-color:var(--cyan);color:var(--cyan);}
.nav-toggle-bars{display:grid;gap:4px;width:18px;}
.nav-toggle-bars span{
  display:block;height:1.5px;width:100%;
  background:currentColor;
  transition:transform .25s var(--ease),opacity .2s;
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars span:nth-child(1){transform:translateY(5.5px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars span:nth-child(3){transform:translateY(-5.5px) rotate(-45deg);}
.nav-toggle-text{letter-spacing:.16em;}

/* desktop nav */
.site-nav{flex:1 1 auto;display:flex;justify-content:center;}
.nav-head,.nav-foot{display:none;}
.nav-list{display:flex;align-items:center;gap:2px;}
.nav-item{position:relative;display:flex;align-items:center;}
.nav-link{
  position:relative;
  display:inline-block;
  padding:.55rem .65rem;
  font-size:.875rem;
  letter-spacing:.06em;
  color:var(--text-light);
  border-radius:var(--r-xs);
  transition:color .2s,background-color .2s;
}
.nav-link::after{
  content:"";
  position:absolute;left:.65rem;right:.65rem;bottom:.28rem;
  height:1px;
  background:var(--cyan);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .25s var(--ease);
}
.nav-link:hover{color:var(--cyan);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link[aria-current="page"]{color:var(--cyan);}
.nav-link[aria-current="page"]::after{transform:scaleX(1);background:var(--amber);}

.nav-sub-toggle{
  display:inline-grid;place-items:center;
  width:26px;height:26px;
  margin-inline-start:-4px;
  border-radius:var(--r-xs);
  color:var(--slate);
  transition:color .2s,background-color .2s,transform .25s var(--ease);
}
.nav-sub-toggle:hover{color:var(--cyan);background:rgba(43,245,200,.10);}
.nav-caret{
  width:6px;height:6px;
  border-right:1.5px solid currentColor;
  border-bottom:1.5px solid currentColor;
  transform:translateY(-1px) rotate(45deg);
  transition:transform .25s var(--ease);
}
.nav-item[data-open="true"] .nav-caret{transform:translateY(1px) rotate(-135deg);}

.nav-sub{
  position:absolute;
  top:calc(100% + 12px);
  left:0;
  min-width:16.5rem;
  padding:.65rem;
  background:var(--ink-panel);
  border:1px solid var(--line-strong);
  border-radius:var(--r-sm);
  box-shadow:var(--shadow-panel);
  opacity:0;
  visibility:hidden;
  transform:translateY(-6px);
  transition:opacity .22s var(--ease),transform .22s var(--ease),visibility .22s;
}
.nav-item[data-open="true"] > .nav-sub,
.nav-item:hover > .nav-sub,
.nav-item:focus-within > .nav-sub{
  opacity:1;visibility:visible;transform:none;
}
.nav-sub-group + .nav-sub-group{margin-top:.5rem;}
.nav-sub-group-title{
  font-family:var(--font-mono);
  font-size:.6875rem;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--slate);
  padding:.15rem .5rem .4rem;
  max-width:none;
}
.nav-sub-link{
  display:flex;align-items:center;justify-content:space-between;gap:1rem;
  padding:.45rem .5rem;
  font-size:.8125rem;
  letter-spacing:.04em;
  color:var(--text-light);
  border-radius:var(--r-xs);
  transition:background-color .2s,color .2s;
}
.nav-sub-link:hover{background:rgba(43,245,200,.10);color:var(--cyan);}
.nav-sub-link[aria-current="page"]{color:var(--cyan);background:rgba(43,245,200,.08);}
.nav-sub-num{font-size:.6875rem;color:var(--slate);}
.nav-sub-link:hover .nav-sub-num{color:var(--amber);}

/* header actions */
.header-actions{
  display:flex;align-items:center;gap:.75rem;
  flex:0 0 auto;
  margin-inline-start:auto;
}
.fav-hint{
  font-size:.6875rem;
  letter-spacing:.14em;
  color:var(--slate);
  white-space:nowrap;
}
.cta-price{
  display:inline-flex;align-items:center;gap:.45rem;
  padding:.55rem .95rem;
  background:var(--amber);
  color:#2A1500;
  border-radius:var(--r-xs);
  font-family:var(--font-display);
  font-weight:700;
  font-size:.8125rem;
  letter-spacing:.08em;
  white-space:nowrap;
  transition:background-color .2s,transform .2s var(--ease),box-shadow .2s;
}
.cta-price::after{
  content:"";
  width:6px;height:6px;
  border-right:1.5px solid currentColor;
  border-top:1.5px solid currentColor;
  transform:rotate(45deg);
}
.cta-price:hover{background:#FFB64D;transform:translateY(-1px);box-shadow:0 12px 26px -18px rgba(255,159,28,.95);}

.nav-scrim{
  display:none;
  position:fixed;inset:0;
  background:rgba(6,17,15,.66);
  -webkit-backdrop-filter:blur(3px);
  backdrop-filter:blur(3px);
  opacity:0;pointer-events:none;
  transition:opacity .3s var(--ease);
  z-index:110;
}

.scroll-progress{
  position:absolute;
  left:0;bottom:-1px;
  height:2px;width:0;
  background:linear-gradient(90deg,var(--cyan),var(--amber));
  transition:width .12s linear;
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer{
  background:var(--ink-deep);
  color:var(--text-light);
  border-top:1px solid var(--line);
  padding-block:clamp(2.5rem,5vw,4rem) 1.5rem;
}
.footer-inner{display:block;}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.15fr;
  gap:clamp(1.5rem,3vw,3rem);
  padding-bottom:2rem;
  border-bottom:1px solid var(--line);
}
.footer-col{min-width:0;}
.footer-col--brand{max-width:22rem;}
.footer-brand{
  display:inline-block;
  font-family:var(--font-display);
  font-weight:800;
  font-size:1.125rem;
  letter-spacing:.12em;
  color:var(--paper);
  margin-bottom:.9rem;
}
.footer-brand:hover{color:var(--cyan);}
.footer-title{
  font-size:.75rem;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--cyan-mist);
  font-weight:700;
  margin-bottom:.9rem;
}
.footer-list{display:grid;gap:.5rem;}
.footer-link{
  display:inline-block;
  font-size:.875rem;
  letter-spacing:.04em;
  color:var(--text-light);
  transition:color .2s,transform .2s var(--ease);
}
.footer-link:hover{color:var(--cyan);transform:translateX(2px);}
.footer-link[aria-current="page"]{color:var(--amber);}
.footer-note{
  font-size:.8125rem;
  line-height:1.7;
  color:var(--slate);
  max-width:32em;
}
.footer-note + .footer-note{margin-top:.45rem;}
.footer-note--wide{
  margin-top:1.5rem;
  padding-top:1.25rem;
  border-top:1px dashed rgba(155,255,233,.12);
  max-width:46em;
}
.footer-mono{font-family:var(--font-mono);font-size:.8125rem;letter-spacing:.02em;}
.footer-cta{margin-top:1rem;}
.copy-btn{
  margin-top:.7rem;
  padding:.4rem .7rem;
  border:1px solid var(--line-strong);
  border-radius:var(--r-xs);
  font-size:.75rem;
  letter-spacing:.1em;
  color:var(--text-light);
  transition:border-color .2s,color .2s,background-color .2s;
}
.copy-btn:hover{border-color:var(--cyan);color:var(--cyan);}
.copy-btn[data-copied="true"]{border-color:var(--amber);color:var(--amber);background:rgba(255,159,28,.08);}

.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:1rem;
  padding-top:1.4rem;
}
.footer-copy{font-size:.8125rem;color:var(--slate);letter-spacing:.04em;max-width:none;}
.footer-legal{display:flex;flex-wrap:wrap;gap:1.1rem;}
.footer-legal .footer-link{font-size:.8125rem;color:var(--slate);}
.footer-legal .footer-link:hover{color:var(--cyan);}

/* ============================================================
   MOTION
   ============================================================ */
[data-reveal]{
  opacity:0;
  transform:translateY(10px);
  transition:opacity .6s var(--ease),transform .6s var(--ease);
  transition-delay:calc(var(--reveal-i,0) * 70ms);
}
[data-reveal].is-revealed{opacity:1;transform:none;}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width:1180px){
  .fav-hint{display:none;}
}

@media (max-width:1024px){
  .footer-grid{grid-template-columns:1fr 1fr;}
  .footer-col--brand{grid-column:1 / -1;max-width:none;}
}

@media (max-width:960px){
  :root{--header-h:64px;}

  .nav-toggle{display:inline-flex;}
  .header-actions{margin-inline-start:0;gap:.5rem;}
  .cta-price{padding:.5rem .75rem;font-size:.75rem;}
  .fav-hint{display:none;}

  .nav-scrim{display:block;}
  .site-header[data-nav-open="true"] .nav-scrim{opacity:1;pointer-events:auto;}

  .site-nav{
    position:fixed;
    inset-block:0;
    inset-inline-end:0;
    width:min(88vw,368px);
    display:flex;
    flex-direction:column;
    gap:1rem;
    padding:1rem 1.15rem 2.5rem;
    background:var(--ink-panel);
    border-inline-start:1px solid var(--line-strong);
    box-shadow:-30px 0 70px -44px rgba(0,0,0,1);
    overflow-y:auto;
    transform:translateX(102%);
    transition:transform .32s var(--ease);
    z-index:120;
  }
  .site-nav[data-open="true"]{transform:none;}

  .nav-head{
    display:flex;align-items:center;justify-content:space-between;
    padding-bottom:.85rem;
    border-bottom:1px solid var(--line);
  }
  .nav-head-title{
    font-family:var(--font-mono);
    font-size:.6875rem;
    letter-spacing:.22em;
    text-transform:uppercase;
    color:var(--slate);
  }
  .nav-close{
    padding:.3rem .6rem;
    border:1px solid var(--line-strong);
    border-radius:var(--r-xs);
    font-size:.75rem;
    letter-spacing:.1em;
    color:var(--text-light);
  }
  .nav-close:hover{border-color:var(--cyan);color:var(--cyan);}

  .nav-list{display:grid;gap:2px;align-items:stretch;}
  .nav-item{
    display:grid;
    grid-template-columns:1fr auto;
    align-items:center;
    border-bottom:1px solid rgba(155,255,233,.08);
    padding-block:.15rem;
  }
  .nav-link{
    padding:.75rem .25rem;
    font-size:.9375rem;
    letter-spacing:.06em;
  }
  .nav-link::after{display:none;}
  .nav-sub-toggle{width:36px;height:36px;}
  .nav-sub{
    grid-column:1 / -1;
    position:static;
    display:none;
    min-width:0;
    opacity:1;visibility:visible;transform:none;
    border:0;
    border-radius:0;
    box-shadow:none;
    background:rgba(6,17,15,.28);
    padding:.5rem .25rem .75rem .75rem;
    margin-bottom:.5rem;
  }
  .nav-item[data-open="true"] > .nav-sub{display:block;}
  .nav-item:hover > .nav-sub{opacity:1;visibility:visible;}
  .nav-sub-link{padding:.5rem;font-size:.875rem;}

  .nav-foot{display:block;margin-top:auto;padding-top:1rem;border-top:1px solid var(--line);}
  .nav-foot-note{
    font-size:.75rem;
    color:var(--slate);
    margin-bottom:.75rem;
    max-width:none;
    line-height:1.7;
  }

  .breadcrumbs{font-size:.75rem;}

  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .footer-legal{gap:.5rem 1rem;}
}

@media (max-width:620px){
  body{font-size:.9688rem;}
  .brand-sub{display:none;}
  .brand-mark{width:30px;height:30px;font-size:.6875rem;}
  .brand-name{font-size:.875rem;letter-spacing:.1em;}
  .cta-price{font-size:.6875rem;letter-spacing:.06em;padding:.45rem .6rem;}
  .nav-toggle-text{display:none;}
  .footer-grid{grid-template-columns:1fr;gap:1.75rem;}
  .footer-col--brand{grid-column:auto;}
  .footer-note{max-width:none;}
}

@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;
  }
  [data-reveal]{opacity:1;transform:none;transition:none;}
  .nav-link:hover::after{transform:scaleX(1);}
  .btn:hover,.footer-link:hover,.cta-price:hover{transform:none;}
}