/* ============================================================
   vision-wxc.com.cn — shared site kit
   万象城体育 / 视野所及 · 夜间赛场 × 控制室
   ============================================================ */

/* ---------- 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,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
img,svg,video{display:block;max-width:100%}
button{font:inherit;color:inherit;background:none;border:0;padding:0}
a{color:inherit;text-decoration:none}
table{border-collapse:collapse;width:100%}

/* ---------- 2. tokens ---------- */
:root{
  --c-ink:#061713;
  --c-ink-2:#0B2A24;
  --c-fog:#F2F7F4;
  --c-silver:#C9D2CF;
  --c-cyan:#52FFE1;
  --c-orange:#FF7A3D;
  --c-wine:#5C1F33;
  --c-indigo:#2B2350;
  --c-paper:#E8EFEA;
  --c-line:#3A4B45;
  --c-warn:#FFD166;

  --font-title:"Noto Sans SC Condensed","Source Han Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-body:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"IBM Plex Mono","Roboto Mono",SFMono-Regular,ui-monospace,"SF Mono",Consolas,"Liberation Mono",monospace;

  --wrap:1240px;
  --gutter:clamp(18px,4vw,56px);
  --radius:2px;
  --header-h:clamp(58px,7vw,74px);
  --ease:150ms cubic-bezier(.32,.72,.28,1);
}

/* ---------- 3. base typography ---------- */
body{
  font-family:var(--font-body);
  font-size:clamp(15.5px,.45vw + 14.4px,17.5px);
  line-height:1.85;
  color:var(--c-fog);
  background-color:var(--c-ink);
  background-image:
    radial-gradient(1200px 640px at 10% -12%,rgba(82,255,225,.075),transparent 62%),
    radial-gradient(920px 520px at 94% 2%,rgba(255,122,61,.05),transparent 64%),
    radial-gradient(760px 760px at 50% 120%,rgba(43,35,80,.35),transparent 70%),
    repeating-linear-gradient(0deg,rgba(58,75,69,.10) 0 1px,transparent 1px 5px);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
h1,h2,h3,h4{
  font-family:var(--font-title);
  font-stretch:condensed;
  font-weight:800;
  line-height:1.16;
  letter-spacing:.07em;
  color:var(--c-fog);
}
h1{font-size:clamp(2.3rem,6vw,4.6rem);letter-spacing:.09em}
h2{font-size:clamp(1.6rem,3.2vw,2.6rem)}
h3{font-size:clamp(1.14rem,1.8vw,1.5rem);letter-spacing:.05em}
h4{font-size:clamp(1rem,1.3vw,1.16rem);letter-spacing:.04em}
p{max-width:38em}
strong{color:var(--c-fog);font-weight:700}
::selection{background:var(--c-cyan);color:#04211C}
:focus-visible{outline:2px solid var(--c-cyan);outline-offset:3px;border-radius:2px}

/* ---------- 4. shared layout ---------- */
.wrap{
  width:100%;
  max-width:var(--wrap);
  margin-inline:auto;
  padding-inline:var(--gutter);
}
.section{padding-block:clamp(48px,7vw,104px)}
.section--tight{padding-block:clamp(30px,4vw,58px)}
.eyebrow{
  display:flex;align-items:center;gap:.75em;
  font-family:var(--font-mono);
  font-size:.7rem;letter-spacing:.28em;text-transform:uppercase;
  color:var(--c-cyan);
}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--c-orange);flex:0 0 auto}
.lead{
  font-size:clamp(1rem,1.4vw,1.2rem);
  line-height:1.8;color:var(--c-silver);max-width:46ch;
}
.prose{max-width:40em;color:var(--c-silver);line-height:1.85}
.prose p + p{margin-top:1em}
.prose h2,.prose h3{margin-top:1.6em;margin-bottom:.6em;color:var(--c-fog)}
.rule{height:1px;border:0;background:var(--c-line);margin-block:clamp(24px,4vw,48px)}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:.04em}

.grid{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:clamp(16px,2.4vw,32px)}
.col-4{grid-column:span 4}
.col-5{grid-column:span 5}
.col-6{grid-column:span 6}
.col-7{grid-column:span 7}
.col-8{grid-column:span 8}

/* ---------- 5. buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5em;
  padding:.62em 1.15em;
  font-family:var(--font-body);font-size:.88rem;font-weight:700;letter-spacing:.1em;
  border:1px solid transparent;border-radius:var(--radius);
  cursor:pointer;
  transition:transform var(--ease),background-color var(--ease),border-color var(--ease),color var(--ease),box-shadow var(--ease);
}
.btn--signal{background:var(--c-orange);color:#180D05;box-shadow:0 10px 26px -18px rgba(255,122,61,.9)}
.btn--signal:hover{background:#FF8F5A;transform:translateY(-1px)}
.btn--cyan{background:var(--c-cyan);color:#04211C}
.btn--cyan:hover{background:#87FFED;transform:translateY(-1px)}
.btn--ghost{color:var(--c-fog);border-color:var(--c-line);background:rgba(242,247,244,.04)}
.btn--ghost:hover{border-color:var(--c-cyan);color:var(--c-cyan);transform:translateY(-1px)}

/* ---------- 6. tags / panels / media / track ---------- */
.tag{
  display:inline-flex;align-items:center;gap:.45em;
  font-family:var(--font-mono);font-size:.68rem;letter-spacing:.18em;text-transform:uppercase;
  padding:.3em .72em;border:1px solid currentColor;border-radius:1px;color:var(--c-cyan);
}
.tag--signal{color:var(--c-orange)}
.panel{
  background:var(--c-ink-2);
  border:1px solid var(--c-line);
  border-radius:var(--radius);
  padding:clamp(18px,3vw,32px);
}
.panel--glass{
  background:rgba(242,247,244,.055);
  border-color:rgba(201,210,207,.2);
  -webkit-backdrop-filter:blur(12px) saturate(118%);
  backdrop-filter:blur(12px) saturate(118%);
}

.media{position:relative;margin:0;overflow:hidden;border:1px solid var(--c-line);background:var(--c-ink-2)}
.media__frame{position:relative;display:block;aspect-ratio:16/9;overflow:hidden}
.media__img,.media img{width:100%;height:100%;object-fit:cover;object-position:center;filter:saturate(1.04) contrast(1.03)}
.media::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(112deg,rgba(6,23,19,.5),rgba(6,23,19,0) 58%);
}
.media--wide .media__frame{aspect-ratio:21/9}
.media--tall .media__frame{aspect-ratio:3/4}
.media--square .media__frame{aspect-ratio:1/1}
.media__caption{margin-top:.7em;font-size:.78rem;line-height:1.6;color:var(--c-silver);letter-spacing:.03em}

.track{
  display:flex;gap:clamp(12px,2vw,24px);
  overflow-x:auto;overscroll-behavior-x:contain;
  scroll-snap-type:x proximity;
  padding-bottom:.6em;
  scrollbar-width:thin;scrollbar-color:var(--c-line) transparent;
}
.track > *{flex:0 0 auto;scroll-snap-align:start}
.track::-webkit-scrollbar{height:6px}
.track::-webkit-scrollbar-thumb{background:var(--c-line)}

/* ---------- 7. breadcrumb ---------- */
.breadcrumb{margin-bottom:clamp(18px,2.4vw,30px)}
.breadcrumb__list{display:flex;flex-wrap:wrap;align-items:center;gap:.6em;font-family:var(--font-mono);font-size:.72rem;letter-spacing:.11em;color:rgba(201,210,207,.72)}
.breadcrumb__item{display:inline-flex;align-items:center;gap:.6em}
.breadcrumb__sep{color:var(--c-line)}
.breadcrumb__link{color:var(--c-silver);transition:color var(--ease)}
.breadcrumb__link:hover{color:var(--c-cyan)}
.breadcrumb__current{color:var(--c-cyan)}

/* ---------- 8. header ---------- */
.skip-link{
  position:absolute;top:-100px;left:var(--gutter);z-index:200;
  padding:.7em 1.1em;background:var(--c-cyan);color:#04211C;
  font-weight:700;font-size:.85rem;letter-spacing:.08em;border-radius:var(--radius);
  transition:top var(--ease);
}
.skip-link:focus{top:10px}

.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(6,23,19,.55);
  -webkit-backdrop-filter:blur(16px) saturate(125%);
  backdrop-filter:blur(16px) saturate(125%);
  border-bottom:1px solid rgba(58,75,69,.55);
  transition:background-color 240ms ease,box-shadow 240ms ease,border-color 240ms ease;
}
.site-header[data-scrolled="true"]{
  background:rgba(11,42,36,.98);
  border-bottom-color:var(--c-line);
  box-shadow:0 22px 46px -32px #000;
}
.site-header__inner{
  display:flex;align-items:center;
  gap:clamp(10px,1.6vw,26px);
  max-width:var(--wrap);margin-inline:auto;
  padding-inline:var(--gutter);
  min-height:var(--header-h);
}
.site-header__progress{
  position:absolute;left:0;right:0;bottom:-1px;height:2px;
  background:rgba(58,75,69,.5);overflow:hidden;pointer-events:none;
}
.site-header__progress-bar{
  display:block;width:100%;height:100%;
  transform:scaleX(0);transform-origin:left center;
  background:linear-gradient(90deg,var(--c-cyan),var(--c-orange));
  will-change:transform;
}

/* brand */
.brand{display:inline-flex;align-items:center;gap:.7rem;color:var(--c-fog);flex:0 0 auto}
.brand__mark{
  position:relative;display:block;width:30px;height:30px;flex:0 0 auto;
  border:1px solid rgba(82,255,225,.5);
  background:linear-gradient(150deg,rgba(82,255,225,.18),rgba(6,23,19,0));
}
.brand__mark-line{position:absolute;left:7px;height:2px;background:var(--c-cyan);transform:skewX(-24deg);transition:width var(--ease),opacity var(--ease)}
.brand__mark-line:nth-child(1){top:8px;width:9px;opacity:.55}
.brand__mark-line:nth-child(2){top:14px;width:13px;opacity:.85}
.brand__mark-line:nth-child(3){top:20px;width:17px;background:var(--c-orange);opacity:1}
.brand__text{display:flex;flex-direction:column;line-height:1.1}
.brand__name{
  font-family:var(--font-title);font-weight:800;
  font-size:1.02rem;letter-spacing:.2em;color:var(--c-fog);
  transition:color var(--ease);
}
.brand__tag{
  margin-top:.28em;
  font-family:var(--font-mono);font-size:.6rem;letter-spacing:.4em;
  text-transform:uppercase;color:var(--c-silver);
}
.brand:hover .brand__name{color:var(--c-cyan)}

/* nav */
.site-nav{margin-left:auto}
.site-nav__list{display:flex;align-items:center;gap:2px}
.site-nav__item{flex:0 0 auto}
.site-nav__link{
  position:relative;display:inline-flex;align-items:baseline;gap:.45em;
  padding:10px 12px;
  font-size:.92rem;letter-spacing:.06em;color:var(--c-silver);
  transition:color var(--ease);
}
.site-nav__link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;
  background:var(--c-cyan);transform:scaleX(0);transform-origin:left center;
  transition:transform 220ms cubic-bezier(.32,.72,.28,1);
}
.site-nav__link:hover,.site-nav__link:focus-visible{color:var(--c-fog)}
.site-nav__link:hover::after,.site-nav__link:focus-visible::after{transform:scaleX(1)}
.site-nav__index{
  font-family:var(--font-mono);font-size:.62rem;letter-spacing:.08em;
  color:rgba(201,210,207,.45);transition:color var(--ease);
}
.site-nav__link:hover .site-nav__index{color:var(--c-cyan)}
.site-nav__link[aria-current="page"]{color:var(--c-fog)}
.site-nav__link[aria-current="page"]::after{transform:scaleX(1);background:var(--c-cyan)}
.site-nav__link[aria-current="page"] .site-nav__index{color:var(--c-cyan)}

/* header tools */
.header-tools{display:flex;align-items:center;gap:4px;margin-left:6px;flex:0 0 auto}
.header-tools__link{
  padding:8px 9px;font-size:.82rem;letter-spacing:.06em;
  color:var(--c-silver);border-bottom:1px solid transparent;
  transition:color var(--ease),border-color var(--ease);
}
.header-tools__link:hover,.header-tools__link:focus-visible{color:var(--c-cyan);border-bottom-color:var(--c-cyan)}
.header-tools__cta{font-size:.82rem;padding:.55em .95em;letter-spacing:.08em}

/* mobile toggle */
.nav-toggle{
  display:none;flex:0 0 auto;
  width:44px;height:40px;
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
  border:1px solid var(--c-line);border-radius:var(--radius);
  background:rgba(6,23,19,.4);
  cursor:pointer;
  transition:border-color var(--ease),background-color var(--ease);
}
.nav-toggle:hover{border-color:var(--c-cyan)}
.nav-toggle__bar{
  display:block;width:18px;height:2px;background:var(--c-fog);
  transition:transform 200ms ease,opacity 160ms ease,background-color var(--ease);
}
.nav-toggle[aria-expanded="true"]{border-color:var(--c-cyan);background:rgba(82,255,225,.1)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1){transform:translateY(7px) rotate(45deg);background:var(--c-cyan)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3){transform:translateY(-7px) rotate(-45deg);background:var(--c-cyan)}

/* header responsive */
@media (max-width:1119px){
  .header-tools__link{display:none}
}
@media (max-width:959px){
  .nav-toggle{display:inline-flex}
  .header-tools{margin-left:auto}
  .header-tools__cta{font-size:.78rem;padding:.5em .85em}
  .site-nav{
    position:absolute;left:0;right:0;top:100%;
    margin-left:0;
    max-height:0;overflow:hidden;visibility:hidden;opacity:0;
    background:rgba(11,42,36,.985);
    border-bottom:1px solid var(--c-line);
    box-shadow:0 26px 48px -34px #000;
    transition:max-height 260ms ease,opacity 200ms ease,visibility 260ms ease;
  }
  .site-nav[data-open="true"]{max-height:220px;visibility:visible;opacity:1}
  .site-nav__list{
    flex-direction:row;flex-wrap:nowrap;align-items:stretch;
    gap:8px;overflow-x:auto;overscroll-behavior-x:contain;
    scroll-snap-type:x mandatory;
    padding:14px var(--gutter) 18px;
    scrollbar-width:thin;scrollbar-color:var(--c-line) transparent;
  }
  .site-nav__item{scroll-snap-align:start}
  .site-nav__link{
    padding:10px 14px;white-space:nowrap;
    border:1px solid rgba(58,75,69,.95);
    background:rgba(6,23,19,.55);
    border-radius:var(--radius);
  }
  .site-nav__link::after{display:none}
  .site-nav__link[aria-current="page"]{
    border-color:var(--c-cyan);
    background:rgba(82,255,225,.1);
    color:var(--c-cyan);
  }
}
@media (max-width:559px){
  .header-tools__cta{display:none}
  .brand__name{font-size:.94rem;letter-spacing:.16em}
  .brand__tag{letter-spacing:.3em}
}

/* ---------- 9. footer ---------- */
.site-footer{
  margin-top:clamp(40px,6vw,88px);
  background:linear-gradient(180deg,var(--c-ink-2),var(--c-ink) 62%);
  border-top:1px solid var(--c-line);
  color:var(--c-silver);
}

.footer-bar{
  background:linear-gradient(90deg,rgba(92,31,51,.5),rgba(43,35,80,.42) 52%,rgba(11,42,36,.95));
  border-bottom:1px solid var(--c-line);
}
.footer-bar__inner{
  display:flex;align-items:center;flex-wrap:wrap;
  gap:12px clamp(12px,2vw,28px);
  padding-block:12px;
}
.footer-bar__label{
  display:inline-flex;align-items:center;gap:.55em;
  font-family:var(--font-mono);font-size:.66rem;letter-spacing:.3em;text-transform:uppercase;
  color:var(--c-warn);max-width:none;
}
.footer-bar__dot{display:inline-block;width:7px;height:7px;background:var(--c-orange);box-shadow:0 0 0 3px rgba(255,122,61,.2)}
.footer-bar__list{display:flex;flex-wrap:wrap;gap:8px clamp(10px,1.8vw,26px);margin-left:auto}
.footer-bar__item{flex:0 1 auto}
.footer-bar__link{
  display:inline-flex;align-items:center;gap:.55em;
  padding:.34em 0;font-size:.84rem;letter-spacing:.04em;color:var(--c-fog);
  border-bottom:1px solid transparent;
  transition:color var(--ease),border-color var(--ease);
}
.footer-bar__link:hover,.footer-bar__link:focus-visible{color:var(--c-cyan);border-bottom-color:var(--c-cyan)}
.footer-bar__num{font-family:var(--font-mono);font-size:.66rem;letter-spacing:.1em;color:var(--c-orange)}

.footer-main{
  display:grid;
  grid-template-columns:minmax(0,1.35fr) minmax(0,.85fr) minmax(0,.85fr) minmax(0,1.2fr);
  gap:clamp(24px,3vw,48px);
  padding-block:clamp(34px,5vw,72px);
}
.footer-brand{display:flex;flex-direction:column;gap:.9em;align-items:flex-start}
.brand--footer{gap:.8rem}
.brand--footer .brand__name{font-size:1.14rem;letter-spacing:.22em}
.brand--footer .brand__tag{letter-spacing:.34em;color:rgba(201,210,207,.8)}
.footer-brand__note{max-width:24em;font-size:.9rem;line-height:1.75;color:var(--c-silver)}
.footer-brand__meta{font-size:.72rem;letter-spacing:.16em;color:rgba(201,210,207,.62)}

.footer-col__title{
  font-family:var(--font-mono);font-weight:600;
  font-size:.7rem;letter-spacing:.26em;text-transform:uppercase;
  color:var(--c-cyan);
  padding-bottom:.8em;margin-bottom:.9em;
  border-bottom:1px solid var(--c-line);
}
.footer-col__list{display:grid;gap:.55em}
.footer-col__link{
  display:inline-block;font-size:.9rem;color:var(--c-silver);
  border-bottom:1px solid transparent;
  transition:color var(--ease),border-color var(--ease),transform var(--ease);
}
.footer-col__link:hover,.footer-col__link:focus-visible{color:var(--c-fog);border-bottom-color:var(--c-cyan);transform:translateX(2px)}

.footer-contact__list{display:grid;gap:.7em}
.footer-contact__row{display:grid;grid-template-columns:3.2em minmax(0,1fr);gap:.75em;align-items:baseline}
.footer-contact__key{font-family:var(--font-mono);font-size:.66rem;letter-spacing:.16em;color:rgba(201,210,207,.58)}
.footer-contact__val{font-size:.86rem;line-height:1.65;color:var(--c-fog);word-break:break-word}

.footer-legal{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:14px clamp(18px,3vw,40px);
  padding-block:18px 26px;
  border-top:1px solid var(--c-line);
}
.footer-legal__links{display:flex;flex-wrap:wrap;gap:clamp(14px,2vw,26px)}
.footer-legal__link{font-size:.8rem;color:var(--c-silver);transition:color var(--ease)}
.footer-legal__link:hover,.footer-legal__link:focus-visible{color:var(--c-cyan)}
.footer-legal__meta{display:flex;flex-wrap:wrap;gap:6px clamp(12px,2vw,22px);font-size:.76rem;color:rgba(201,210,207,.7);max-width:none}
.footer-legal__icp{color:rgba(201,210,207,.8)}
.footer-legal__copy{letter-spacing:.04em}

@media (max-width:980px){
  .footer-main{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-brand{grid-column:1 / -1}
  .footer-bar__list{margin-left:0}
}
@media (max-width:620px){
  .footer-main{grid-template-columns:minmax(0,1fr)}
  .footer-contact__row{grid-template-columns:3em minmax(0,1fr)}
  .footer-legal{flex-direction:column;align-items:flex-start}
}

/* ---------- 10. reveal ---------- */
.js-reveal [data-reveal]{
  opacity:0;transform:translateY(18px);
  transition:opacity 460ms cubic-bezier(.32,.72,.28,1),transform 460ms cubic-bezier(.32,.72,.28,1);
}
.js-reveal [data-reveal][data-revealed="true"]{opacity:1;transform: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;
  }
  .js-reveal [data-reveal]{opacity:1;transform:none;transition:none}
  .site-header__progress-bar{transition:none}
}