/* ===== 玩球安卓 · site.css ===== */
:root{
  --turf-900:#04150F;
  --turf-700:#0B3D2E;
  --slate-900:#0F1A24;
  --slate-700:#1B2A38;
  --lime:#C9F24D;
  --aqua:#21E6C1;
  --orange:#FF7A2F;
  --violet:#6B5BD2;
  --mist:#EEF4EC;
  --steel:#8FA0AC;
  --line:rgba(238,244,236,.14);
  --line-soft:rgba(238,244,236,.08);
  --header-h:64px;
  --shell:1320px;
  --pad:clamp(18px,4vw,40px);
  --gap:clamp(16px,2.4vw,28px);
  --radius:18px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-display:"Helvetica Neue","Arial Narrow",Arial,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --font-serif:Georgia,"Songti SC","SimSun",Times,serif;
  --font-mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Noto Sans Mono",monospace;
}
@media (min-width:980px){ :root{ --header-h:80px; } }

/* ===== reset ===== */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--slate-900);
  color:var(--mist);
  font-family:var(--font-display);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img,svg,video{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p,figure,blockquote{margin:0}
[hidden]{display:none!important}
::selection{background:var(--lime);color:var(--turf-900)}

/* ===== 中文排版与基础文字件 ===== */
h1,h2,h3,h4{font-family:var(--font-display);font-weight:900;letter-spacing:-.02em;line-height:1.06}
.display-1{font-size:clamp(44px,10vw,160px);line-height:.94}
.display-2{font-size:clamp(30px,5.6vw,84px);line-height:1}
.display-3{font-size:clamp(23px,3vw,44px);line-height:1.1}
.editorial{font-family:var(--font-serif);font-weight:600;letter-spacing:0;line-height:1.35}
.num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}
.eyebrow{
  display:inline-block;font-family:var(--font-mono);font-size:12px;font-weight:700;
  letter-spacing:.14em;text-transform:uppercase;color:var(--lime);
}
.lead{font-size:clamp(17px,1.6vw,20px);line-height:1.7;color:rgba(238,244,236,.9);max-width:56ch}
.muted{color:var(--steel)}
.prose{font-size:17px;color:rgba(238,244,236,.86);max-width:72ch}
.prose p+p{margin-top:1em}
.prose h2,.prose h3{margin-top:1.8em;margin-bottom:.6em}
.prose a{border-bottom:1px solid rgba(201,242,77,.5);color:var(--lime)}

/* ===== 布局骨架 ===== */
.shell{width:100%;max-width:var(--shell);margin:0 auto;padding:0 var(--pad)}
.section{position:relative;padding:clamp(52px,8vw,120px) 0}
.section--turf{background:var(--turf-700)}
.section--slate{background:var(--slate-900)}
.section--deep{background:var(--turf-900)}
.section-head{
  display:flex;flex-wrap:wrap;gap:12px 32px;align-items:flex-end;justify-content:space-between;
  margin-bottom:clamp(24px,4vw,44px);
}
.rule{height:1px;border:0;margin:0;background:linear-gradient(90deg,var(--lime),rgba(201,242,77,.12) 45%,rgba(201,242,77,0))}
.turf-stripes{
  position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(90deg,rgba(238,244,236,.045) 0 48px,rgba(238,244,236,0) 48px 96px);
}
.grid{display:grid;gap:var(--gap)}
.grid--2{grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.grid--3{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.grid--4{grid-template-columns:repeat(auto-fit,minmax(160px,1fr))}
@media (min-width:980px){
  .grid--2{grid-template-columns:repeat(2,1fr)}
  .grid--3{grid-template-columns:repeat(3,1fr)}
  .grid--4{grid-template-columns:repeat(4,1fr)}
}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 20px;border-radius:999px;border:1px solid transparent;
  font-size:14px;font-weight:800;letter-spacing:.04em;
  transition:background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease);
}
.btn:hover{transform:translateY(-2px)}
.btn--accent{background:var(--lime);color:var(--turf-900)}
.btn--accent:hover{background:#dcff6b}
.btn--ghost{border-color:rgba(238,244,236,.3);color:var(--mist)}
.btn--ghost:hover{border-color:var(--aqua);color:var(--aqua)}
.btn--line{border-radius:0;padding:8px 0;border-bottom:1px solid var(--lime);color:var(--lime)}
.btn--line:hover{color:var(--mist);border-color:var(--mist);transform:translateX(3px)}

/* ===== 焦点 ===== */
:focus-visible{outline:2px solid var(--lime);outline-offset:3px;border-radius:6px}
.btn:focus-visible,.tag:focus-visible{outline:2px solid var(--lime);outline-offset:3px;box-shadow:0 0 0 5px rgba(4,21,15,.85)}

/* ===== skip link ===== */
.skip-link{
  position:fixed;top:10px;left:10px;z-index:300;
  transform:translateY(-180%);
  background:var(--lime);color:var(--turf-900);
  font-weight:800;font-size:14px;padding:10px 16px;border-radius:10px;
  transition:transform .18s var(--ease);
}
.skip-link:focus{transform:translateY(0)}

/* ===== 页头 ===== */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:120;
  background:transparent;
  transition:background-color .25s var(--ease),box-shadow .25s var(--ease);
}
.site-header[data-scrolled]{
  background:rgba(15,26,36,.96);
  box-shadow:0 1px 0 rgba(201,242,77,.22),0 24px 48px -34px rgba(0,0,0,.95);
  backdrop-filter:blur(10px);
}
.site-header__inner{
  width:100%;max-width:var(--shell);margin:0 auto;padding:0 var(--pad);
  height:var(--header-h);display:flex;align-items:center;justify-content:space-between;gap:14px;
}
.scroll-progress{
  position:absolute;left:0;right:0;bottom:0;height:2px;
  background:rgba(238,244,236,.08);overflow:hidden;
}
.scroll-progress__bar{
  display:block;height:100%;width:100%;transform:scaleX(0);transform-origin:0 50%;
  background:linear-gradient(90deg,var(--aqua),var(--lime));
  transition:transform .12s linear;
}

/* 品牌 */
.brand{display:inline-flex;align-items:center;gap:11px;color:var(--mist);flex:0 0 auto}
.brand__mark{
  position:relative;width:36px;height:36px;border-radius:10px;overflow:hidden;flex:0 0 auto;
  background:
    repeating-linear-gradient(90deg,rgba(201,242,77,.14) 0 4px,rgba(201,242,77,0) 4px 9px),
    linear-gradient(135deg,var(--turf-700),#062018);
  box-shadow:inset 0 0 0 1px rgba(201,242,77,.38);
}
.brand__mark::before{
  content:"";position:absolute;inset:8px 5px;border:1.5px solid rgba(201,242,77,.8);border-radius:2px;
}
.brand__mark::after{
  content:"";position:absolute;left:50%;top:8px;bottom:8px;width:1.5px;transform:translateX(-50%);
  background:rgba(201,242,77,.55);
}
.brand__text{display:flex;flex-direction:column;line-height:1.15;min-width:0}
.brand__name{font-weight:900;font-size:17px;letter-spacing:.06em;white-space:nowrap}
.brand__descriptor{
  font-family:var(--font-mono);font-size:10px;letter-spacing:.2em;
  text-transform:uppercase;color:var(--steel);white-space:nowrap;
}

/* 导航 */
.nav{
  position:fixed;top:var(--header-h);left:0;right:0;z-index:110;
  display:flex;flex-direction:column;gap:4px;
  padding:16px var(--pad) 26px;
  background:rgba(15,26,36,.985);
  border-bottom:1px solid rgba(201,242,77,.2);
  max-height:calc(100vh - var(--header-h));
  max-height:calc(100dvh - var(--header-h));
  overflow:auto;
  opacity:0;visibility:hidden;pointer-events:none;transform:translateY(-14px);
  transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s var(--ease);
}
.nav[data-open]{opacity:1;visibility:visible;pointer-events:auto;transform:none}
.nav__list{display:flex;flex-direction:column;gap:2px}
.nav__link{
  position:relative;display:block;padding:12px 4px;
  color:rgba(238,244,236,.82);font-size:16px;font-weight:700;letter-spacing:.02em;
  transition:color .18s var(--ease);
}
.nav__link::after{
  content:"";position:absolute;left:0;bottom:2px;height:2px;width:100%;
  background:var(--lime);transform:scaleX(0);transform-origin:0 50%;
  transition:transform .2s var(--ease);
}
.nav__link:hover{color:var(--lime)}
.nav__link:hover::after,.nav__link[aria-current="page"]::after{transform:scaleX(1)}
.nav__link[aria-current="page"]{color:var(--mist)}
.nav__cta{margin-top:16px;align-self:flex-start}

/* 菜单按钮 */
.nav-toggle{
  display:inline-flex;align-items:center;gap:9px;
  padding:9px 14px;border-radius:999px;border:1px solid rgba(238,244,236,.24);
  color:var(--mist);font-size:13px;font-weight:800;letter-spacing:.08em;
  transition:border-color .18s var(--ease),color .18s var(--ease);
}
.nav-toggle:hover{border-color:var(--lime);color:var(--lime)}
.nav-toggle__bars{position:relative;display:block;width:18px;height:2px;background:var(--lime);border-radius:2px}
.nav-toggle__bars::before,.nav-toggle__bars::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--lime);border-radius:2px;
  transition:transform .2s var(--ease);
}
.nav-toggle__bars::before{top:-6px}
.nav-toggle__bars::after{top:6px}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars{background:transparent}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before{transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after{transform:translateY(-6px) rotate(-45deg)}

@media (max-width:979px){
  html.is-nav-open{overflow:hidden}
}
@media (min-width:980px){
  .site-header__inner{gap:28px}
  .nav-toggle{display:none}
  .nav{
    position:static;flex-direction:row;align-items:center;
    padding:0;background:none;border:0;overflow:visible;
    opacity:1;visibility:visible;pointer-events:auto;transform:none;
    max-height:none;
  }
  .nav__list{flex-direction:row;align-items:center;gap:clamp(12px,2vw,30px)}
  .nav__link{padding:0 0 4px;font-size:15px}
  .nav__link::after{bottom:-4px}
  .nav__cta{margin:0 0 0 clamp(12px,2vw,26px);align-self:auto}
}

/* ===== 面包屑 ===== */
.breadcrumb{padding:16px 0 0}
.breadcrumb__list{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--steel)}
.breadcrumb__item{display:inline-flex;align-items:center;gap:8px}
.breadcrumb__item:not(:last-child)::after{content:"/";color:rgba(143,160,172,.5)}
.breadcrumb__link{color:rgba(238,244,236,.78);border-bottom:1px solid transparent;transition:color .18s var(--ease),border-color .18s var(--ease)}
.breadcrumb__link:hover{color:var(--lime);border-color:var(--lime)}
.breadcrumb__current{color:var(--mist);font-weight:700}

/* ===== 数据件 ===== */
.stat{display:flex;flex-direction:column;gap:6px}
.stat__value{
  font-family:var(--font-mono);font-variant-numeric:tabular-nums;
  font-weight:800;font-size:clamp(30px,5vw,64px);line-height:1;color:var(--lime);
}
.stat__value--orange{color:var(--orange)}
.stat__value--aqua{color:var(--aqua)}
.stat__label{font-family:var(--font-mono);font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--steel)}

.index-list{border-top:1px solid var(--line)}
.index-row{
  display:grid;grid-template-columns:auto 1fr auto;gap:8px 16px;align-items:baseline;
  padding:15px 0;border-bottom:1px solid var(--line-soft);
  transition:background-color .18s var(--ease),padding-left .18s var(--ease);
}
.index-row:hover{background:rgba(201,242,77,.06);padding-left:12px}
.index-row__key{font-family:var(--font-mono);font-size:13px;color:var(--aqua);font-variant-numeric:tabular-nums}
.index-row__title{font-weight:700;color:var(--mist)}
.index-row__meta{font-family:var(--font-mono);font-size:12.5px;color:var(--steel);white-space:nowrap}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 10px;border-radius:999px;
  background:var(--slate-700);color:var(--mist);
  font-size:12px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;
}
.tag--lime{background:rgba(201,242,77,.16);color:var(--lime)}
.tag--violet{background:rgba(107,91,210,.24);color:#CFC8FF}
.tag--orange{background:rgba(255,122,47,.18);color:var(--orange)}
.tag--aqua{background:rgba(33,230,193,.16);color:var(--aqua)}

.panel{
  padding:clamp(20px,3vw,32px);border-radius:var(--radius);
  background:linear-gradient(160deg,rgba(27,42,56,.92),rgba(4,21,15,.88));
  box-shadow:inset 0 0 0 1px rgba(238,244,236,.07);
}

/* ===== 标签页 ===== */
.tablist{display:flex;flex-wrap:wrap;gap:8px;padding-bottom:12px;border-bottom:1px solid var(--line)}
.tab{
  padding:8px 15px;border-radius:999px;font-size:13px;font-weight:800;letter-spacing:.06em;
  color:var(--steel);
  transition:background-color .18s var(--ease),color .18s var(--ease);
}
.tab:hover{color:var(--mist);background:rgba(238,244,236,.06)}
.tab[aria-selected="true"]{background:var(--lime);color:var(--turf-900)}
.tab-panel{padding-top:clamp(18px,3vw,30px)}

/* ===== 图片容器 ===== */
.media{
  position:relative;overflow:hidden;border-radius:var(--radius);isolation:isolate;
  background:linear-gradient(140deg,var(--turf-700),var(--turf-900) 58%,var(--slate-700));
  box-shadow:inset 0 0 0 1px rgba(238,244,236,.08);
}
.media::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(120% 90% at 82% 8%,rgba(33,230,193,.18),rgba(4,21,15,0) 60%);
}
.media > img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.media--wide{aspect-ratio:21/9}
.media--pitch{aspect-ratio:16/9}
.media--square{aspect-ratio:1/1}
.media--portrait{aspect-ratio:3/4}
.media__caption{
  position:absolute;left:16px;right:16px;bottom:14px;z-index:2;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;text-transform:uppercase;
  color:var(--mist);text-shadow:0 2px 12px rgba(4,21,15,.9);
}

/* ===== 进入视口显现 ===== */
[data-reveal]{opacity:0;transform:translateY(18px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
[data-reveal].is-visible{opacity:1;transform:none}

/* ===== 页脚 ===== */
.site-footer{position:relative;overflow:hidden;background:var(--turf-900);color:var(--mist)}
.site-footer::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(90deg,rgba(201,242,77,.055) 0 56px,rgba(201,242,77,0) 56px 112px);
}
.site-footer::after{
  content:"";position:absolute;left:-12%;top:-160px;width:70%;height:360px;pointer-events:none;
  background:radial-gradient(closest-side,rgba(11,61,46,.95),rgba(4,21,15,0));
}
.site-footer__inner{
  position:relative;z-index:1;
  width:100%;max-width:var(--shell);margin:0 auto;
  padding:clamp(48px,7vw,88px) var(--pad) clamp(28px,4vw,48px);
  display:grid;gap:clamp(28px,4vw,56px);grid-template-columns:1fr;
}
@media (min-width:760px){ .site-footer__inner{grid-template-columns:1.05fr 1.4fr} }
@media (min-width:1040px){ .site-footer__inner{grid-template-columns:1.35fr 2fr 1.1fr} }

.brand--footer{margin-bottom:18px}
.site-footer__tagline{
  font-family:var(--font-serif);font-weight:600;font-size:17px;line-height:1.6;
  color:rgba(238,244,236,.86);max-width:26ch;
}
.footer-stats{display:flex;flex-wrap:wrap;gap:16px 30px;margin-top:24px}
.footer-stat{display:flex;flex-direction:column;gap:4px}
.footer-stat__value{font-size:26px;font-weight:800;line-height:1;color:var(--lime)}
.footer-stat__label{font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--steel)}

.footer-nav{display:grid;gap:26px;grid-template-columns:repeat(auto-fit,minmax(140px,1fr))}
.footer-group__title{
  font-family:var(--font-mono);font-size:12px;font-weight:700;letter-spacing:.16em;
  text-transform:uppercase;color:var(--lime);margin-bottom:14px;
}
.footer-group__list{display:flex;flex-direction:column;gap:10px}
.footer-link{
  display:inline-block;width:fit-content;font-size:15px;color:rgba(238,244,236,.78);
  border-bottom:1px solid transparent;
  transition:color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease);
}
.footer-link:hover{color:var(--lime);border-color:var(--lime);transform:translateX(3px)}

.footer-contact__title{
  font-family:var(--font-mono);font-size:12px;font-weight:700;letter-spacing:.16em;
  text-transform:uppercase;color:var(--lime);margin-bottom:14px;
}
.footer-contact__item{
  font-family:var(--font-mono);font-size:14px;color:rgba(238,244,236,.88);
  margin-bottom:9px;word-break:break-word;
}
.footer-contact__key{
  display:inline-block;min-width:44px;margin-right:8px;
  font-family:var(--font-display);font-size:11px;font-weight:800;letter-spacing:.14em;
  color:var(--steel);
}
.footer-contact__note{font-size:13px;line-height:1.7;color:var(--steel);max-width:36ch;margin-top:14px}

.site-footer__legal{position:relative;z-index:1;border-top:1px solid rgba(238,244,236,.12)}
.site-footer__legal-inner{
  width:100%;max-width:var(--shell);margin:0 auto;padding:18px var(--pad);
  display:flex;flex-wrap:wrap;gap:8px 24px;align-items:center;justify-content:space-between;
  font-family:var(--font-mono);font-size:12.5px;letter-spacing:.04em;color:var(--steel);
}

/* ===== 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}
  .btn:hover{transform:none}
  .footer-link:hover{transform:none}
}