/* ==========================================================================
   宝博体育官网 / 共享样式表 /assets/site.css
   深空蓝底 + 荧光青状态 + 洋红脉冲；文字建筑式排版，网格与坐标索引为装饰
   ========================================================================== */

/* 1. Reset ---------------------------------------------------------------- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
ul,ol{list-style:none}
img,svg,video{display:block;max-width:100%;height:auto}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
a{color:inherit;text-decoration:none}
table{border-collapse:collapse;width:100%}

/* 2. Tokens --------------------------------------------------------------- */
:root{
  --ink:#060C1C;
  --panel:#0D1830;
  --panel-deep:#0A1425;
  --cyan:#35F2CE;
  --magenta:#FF3D8B;
  --paper:#F3EADB;
  --mist:#8DA2C4;
  --yellow:#FFD166;
  --line:#1C3358;
  --deep:#03121B;

  --gutter:clamp(18px,4vw,56px);
  --shell:1320px;

  --r-s:4px;
  --r-m:10px;
  --r-l:18px;

  --font-display:"Helvetica Neue","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --font-body:"Inter","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:ui-monospace,"SFMono-Regular","JetBrains Mono","IBM Plex Mono",Consolas,"Courier New",monospace;

  --fs-index:13px;
  --fs-small:15px;
  --fs-body:17px;
  --fs-h4:21px;
  --fs-h3:28px;
  --fs-h2:40px;
  --fs-h1:clamp(38px,6vw,64px);
  --fs-hero:clamp(48px,7vw,128px);

  --header-bar:76px;
}

/* 3. Base typography ------------------------------------------------------ */
body{
  min-height:100%;
  background-color:var(--ink);
  background-image:
    radial-gradient(920px 540px at 84% -8%, rgba(53,242,206,.11), transparent 68%),
    radial-gradient(760px 480px at -12% 28%, rgba(255,61,139,.08), transparent 72%),
    linear-gradient(to right, rgba(28,51,88,.42) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(28,51,88,.42) 1px, transparent 1px);
  background-size:auto,auto,88px 88px,88px 88px;
  background-repeat:no-repeat,no-repeat,repeat,repeat;
  background-position:top right,left 28%,0 0,0 0;
  color:var(--paper);
  font-family:var(--font-body);
  font-size:var(--fs-body);
  line-height:1.7;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}

h1,h2,h3,h4,h5,h6{
  font-family:var(--font-display);
  font-weight:250;
  line-height:1.08;
  letter-spacing:-.02em;
  color:var(--paper);
}
h1{font-size:var(--fs-h1);line-height:1.02}
h2{font-size:clamp(26px,3.4vw,40px)}
h3{font-size:clamp(20px,2.2vw,28px)}
h4{font-size:var(--fs-h4);font-weight:400}

p{max-width:70ch}
strong{font-weight:600;color:var(--paper)}

::selection{background:var(--cyan);color:#04121A}

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

/* 4. Shell & grid --------------------------------------------------------- */
.shell{width:100%;max-width:var(--shell);margin-inline:auto;padding-inline:var(--gutter)}

.page-wrap{padding-block:clamp(28px,4.4vw,72px)}
.section{padding-block:clamp(46px,7vw,110px)}
.section-narrow{max-width:74ch}
.section-head{display:grid;gap:14px;max-width:72ch;margin-bottom:clamp(24px,3.4vw,48px)}
.section-head h2{font-size:clamp(26px,3.4vw,40px)}

.grid{display:grid;gap:clamp(16px,2vw,28px)}
.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))}

@media (max-width:1000px){
  .grid-3,.grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:620px){
  .grid-2,.grid-3,.grid-4{grid-template-columns:minmax(0,1fr)}
}

/* 5. Text utilities ------------------------------------------------------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-mono);font-size:var(--fs-index);
  letter-spacing:.2em;text-transform:uppercase;color:var(--cyan);
}
.eyebrow::before{content:"";width:26px;height:1px;background:currentColor;opacity:.75;flex:0 0 auto}

.index-tag{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.2em;
  color:var(--mist);text-transform:uppercase;
}

.lead{font-size:clamp(17px,1.35vw,20px);line-height:1.72;color:#D9E2F2;max-width:62ch}
.muted{color:var(--mist)}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums}
.num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-weight:800;color:var(--yellow);letter-spacing:-.01em}

/* 6. Buttons -------------------------------------------------------------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 20px;border-radius:999px;
  font-size:14px;font-weight:600;letter-spacing:.02em;line-height:1.2;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
}
.btn-primary{background:var(--cyan);border-color:var(--cyan);color:#04121A}
.btn-primary:hover{background:#63F7DF;border-color:#63F7DF;transform:translateY(-1px)}
.btn-ghost{background:transparent;border-color:rgba(53,242,206,.45);color:var(--cyan)}
.btn-ghost:hover{background:rgba(53,242,206,.12);border-color:var(--cyan)}
.btn-quiet{background:transparent;border-color:var(--line);color:var(--mist)}
.btn-quiet:hover{color:var(--paper);border-color:var(--mist)}

/* 7. Header --------------------------------------------------------------- */
.skip-link{
  position:absolute;left:var(--gutter);top:0;z-index:120;
  padding:10px 18px;border-radius:0 0 var(--r-m) var(--r-m);
  background:var(--cyan);color:#04121A;font-size:14px;font-weight:700;
  transform:translateY(-130%);transition:transform .22s ease;
}
.skip-link:focus{transform:translateY(0)}

.site-header{
  position:sticky;top:0;z-index:90;
  background:linear-gradient(180deg,rgba(6,12,28,.97),rgba(6,12,28,.9));
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.site-header[data-collapsed] .header-strip{max-height:0;opacity:0;border-bottom-color:transparent}
.site-header[data-collapsed] .bar-inner{min-height:62px}

/* 7a. 上层：品牌短句与实时状态 */
.header-strip{
  max-height:48px;overflow:hidden;
  background:rgba(3,18,27,.62);
  border-bottom:1px solid rgba(28,51,88,.6);
  transition:max-height .36s ease,opacity .28s ease,border-color .3s ease;
}
.strip-inner{
  display:flex;align-items:center;gap:16px;min-height:46px;
  font-size:var(--fs-index);letter-spacing:.08em;color:var(--mist);
}
.strip-note{
  max-width:none;color:var(--paper);opacity:.88;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.status-chip{
  display:inline-flex;align-items:center;gap:8px;flex:0 0 auto;
  padding:3px 11px;border:1px solid rgba(53,242,206,.45);border-radius:999px;
  color:var(--cyan);font-family:var(--font-mono);font-size:12px;letter-spacing:.04em;
}
.status-dot{
  width:6px;height:6px;border-radius:50%;background:var(--cyan);
  box-shadow:0 0 0 0 rgba(53,242,206,.6);
  animation:node-pulse 2.6s ease-out infinite;
}
@keyframes node-pulse{
  0%{box-shadow:0 0 0 0 rgba(53,242,206,.55)}
  70%{box-shadow:0 0 0 8px rgba(53,242,206,0)}
  100%{box-shadow:0 0 0 0 rgba(53,242,206,0)}
}
.strip-device{
  margin-left:auto;flex:0 0 auto;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.16em;color:var(--mist);
}

/* 7b. 下层：品牌 + 导航 + 行动入口 */
.bar-inner{
  display:flex;align-items:center;gap:clamp(14px,2.4vw,36px);
  min-height:var(--header-bar);
  transition:min-height .3s ease;
}
.brand{display:inline-flex;align-items:center;gap:12px;flex:0 0 auto}
.brand-mark{
  position:relative;width:34px;height:34px;flex:0 0 auto;
  border:1px solid rgba(53,242,206,.7);
  border-radius:11px 11px 11px 3px;
  background:linear-gradient(135deg,rgba(53,242,206,.22),rgba(255,61,139,.14));
}
.brand-mark::before{
  content:"";position:absolute;inset:9px 7px;
  border-top:2px solid var(--cyan);
  border-bottom:2px solid var(--magenta);
  border-radius:2px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.16}
.brand-name{font-family:var(--font-display);font-size:17px;font-weight:600;letter-spacing:.02em;color:var(--paper)}
.brand-sub{font-family:var(--font-mono);font-size:10.5px;letter-spacing:.24em;color:var(--mist);text-transform:uppercase}

.main-nav{margin-left:auto}
.nav-list{display:flex;align-items:center;gap:clamp(6px,1.5vw,26px)}
.nav-link{
  position:relative;display:inline-block;padding:6px 2px;
  font-size:15px;color:var(--mist);letter-spacing:.02em;
  transition:color .2s ease;
}
.nav-link:hover{color:var(--paper)}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--cyan);transform:scaleX(0);transform-origin:left;
  transition:transform .3s cubic-bezier(.22,.7,.3,1);
}
.nav-link[aria-current="page"]{color:var(--paper)}
.nav-link[aria-current="page"]::after{transform:scaleX(1)}

.bar-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;margin-left:clamp(8px,1.6vw,24px)}
.bar-cta{padding:10px 18px}

.nav-toggle{
  position:relative;display:none;width:44px;height:44px;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
  border:1px solid var(--line);border-radius:var(--r-m);
  background:rgba(13,24,48,.7);
}
.nav-toggle-bar{
  display:block;width:20px;height:2px;background:var(--paper);
  transition:transform .28s ease,opacity .2s ease;
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1){transform:translateY(7px) rotate(45deg)}
.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)}
.nav-toggle-label{
  position:absolute;width:1px;height:1px;overflow:hidden;
  clip-path:inset(50%);white-space:nowrap;
}

.scroll-progress{
  position:absolute;left:0;right:0;bottom:0;height:2px;
  background:rgba(28,51,88,.65);
}
.scroll-progress-fill{
  display:block;height:100%;width:0;
  background:linear-gradient(90deg,var(--cyan),var(--magenta));
  transition:width .16s linear;
}

/* 7c. 移动端导航 */
@media (max-width:880px){
  .nav-toggle{display:inline-flex}
  .main-nav{
    position:absolute;left:0;right:0;top:100%;
    width:100%;padding:14px var(--gutter) 22px;
    background:linear-gradient(180deg,#0A1425,#060C1C 78%);
    border-bottom:1px solid var(--line);
    box-shadow:0 34px 70px rgba(0,0,0,.55);
    opacity:0;visibility:hidden;transform:translateY(-8px);
    pointer-events:none;
    transition:opacity .26s ease,transform .26s ease,visibility .26s;
  }
  .main-nav[data-open]{opacity:1;visibility:visible;transform:none;pointer-events:auto}
  .nav-list{flex-direction:column;align-items:stretch;gap:0;width:100%}
  .nav-link{
    display:block;padding:15px 6px 15px 16px;
    font-size:17px;color:var(--paper);
    border-bottom:1px solid rgba(28,51,88,.7);
  }
  .nav-link::after{display:none}
  .nav-link[aria-current="page"]{color:var(--cyan);box-shadow:inset 2px 0 0 var(--cyan)}
  .bar-actions{margin-left:auto}
}
@media (max-width:760px){
  .strip-device{display:none}
  .strip-note{font-size:12.5px;letter-spacing:.05em}
}
@media (max-width:560px){
  .bar-cta{padding:9px 14px;font-size:13px}
  .brand-sub{display:none}
}

/* 8. Footer --------------------------------------------------------------- */
.site-footer{
  margin-top:clamp(60px,9vw,140px);
  background:linear-gradient(180deg,var(--deep),#020A12);
  border-top:1px solid var(--line);
  color:var(--mist);
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr 1.5fr;
  gap:clamp(24px,3.4vw,54px);
  padding-block:clamp(44px,6vw,84px);
}
.footer-brand .brand{margin-bottom:18px}
.footer-note{
  margin-bottom:18px;max-width:34ch;
  font-size:var(--fs-small);line-height:1.75;color:var(--mist);
}
.footer-badges{display:flex;flex-wrap:wrap;gap:8px}
.badge{
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.16em;
  padding:5px 11px;border:1px solid var(--line);border-radius:999px;color:var(--mist);
}

.footer-col-title{
  margin-bottom:16px;
  font-family:var(--font-mono);font-size:12px;font-weight:500;
  letter-spacing:.2em;text-transform:uppercase;color:var(--cyan);
}
.footer-links{display:grid;gap:10px}
.footer-link{
  display:inline-block;font-size:var(--fs-small);color:var(--mist);
  transition:color .2s ease,transform .2s ease;
}
.footer-link:hover{color:var(--paper);transform:translateX(3px)}

.footer-legend{display:grid;gap:10px}
.footer-legend li{
  display:flex;align-items:baseline;gap:10px;
  font-size:var(--fs-small);color:var(--mist);
}
.legend-num{
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.1em;
  color:var(--yellow);
}

.footer-contact{min-width:0}
.contact-list{display:grid;gap:14px}
.contact-item{display:grid;gap:2px}
.contact-label{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.18em;
  text-transform:uppercase;color:var(--mist);
}
.contact-value{font-size:var(--fs-small);color:var(--paper);overflow-wrap:anywhere}
.contact-value--mono{font-family:var(--font-mono);letter-spacing:.02em}
.contact-note{
  margin-top:16px;max-width:38ch;padding-left:12px;
  border-left:2px solid var(--magenta);
  font-size:13.5px;line-height:1.7;color:var(--mist);
}

.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 26px;
  padding-block:22px;border-top:1px solid var(--line);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;color:var(--mist);
}
.footer-closing{max-width:none;color:var(--cyan)}
.legal-line{max-width:none}
.footer-copy{margin-left:auto;max-width:none}

@media (max-width:1100px){
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-brand,.footer-contact{grid-column:1 / -1}
  .footer-contact{max-width:520px}
}
@media (max-width:620px){
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .footer-copy{margin-left:0}
}

/* 9. Content components --------------------------------------------------- */
.card{
  position:relative;padding:clamp(18px,2.2vw,28px);
  background:linear-gradient(160deg,rgba(13,24,48,.96),rgba(10,20,37,.9));
  border:1px solid var(--line);border-radius:var(--r-l);
  transition:border-color .25s ease,transform .25s ease;
}
.card:hover{border-color:rgba(53,242,206,.55);transform:translateY(-3px)}
.card-index{
  display:block;margin-bottom:12px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.2em;color:var(--mist);
}
.card-title{margin:0 0 8px;font-size:var(--fs-h4);font-weight:400;line-height:1.25}
.card-text{font-size:15.5px;line-height:1.7;color:var(--mist)}

.chip-set{display:flex;flex-wrap:wrap;gap:10px}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 15px;border:1px solid var(--line);border-radius:999px;
  background:rgba(13,24,48,.7);
  font-family:var(--font-body);font-size:14px;color:var(--mist);
  transition:color .2s ease,border-color .2s ease,background-color .2s ease,box-shadow .2s ease;
}
.chip:hover{color:var(--paper);border-color:var(--mist)}
.chip[aria-pressed="true"]{
  color:var(--cyan);border-color:var(--cyan);
  background:rgba(53,242,206,.1);
  box-shadow:inset 0 0 0 1px rgba(53,242,206,.35);
}

.breadcrumbs{padding-block:clamp(16px,2.4vw,28px);border-bottom:1px solid rgba(28,51,88,.6)}
.breadcrumb-list{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.breadcrumb-list li{display:flex;align-items:center;gap:10px;
  font-family:var(--font-mono);font-size:12.5px;letter-spacing:.1em;color:var(--mist)}
.breadcrumb-list li + li::before{content:"/";color:#2C4772}
.breadcrumb-link{transition:color .2s ease}
.breadcrumb-link:hover{color:var(--cyan)}
.breadcrumb-list [aria-current="page"]{color:var(--paper)}

.prose{max-width:68ch;font-size:var(--fs-body);line-height:1.8;color:#D6DEEF}
.prose p{margin-bottom:1.1em}
.prose h2{font-size:clamp(24px,2.6vw,28px);margin:2.1em 0 .6em}
.prose h3{font-size:var(--fs-h4);margin:1.7em 0 .5em;font-weight:400}
.prose ul{display:grid;gap:10px;margin-bottom:1.2em}
.prose li{position:relative;padding-left:18px}
.prose li::before{
  content:"";position:absolute;left:0;top:.78em;
  width:8px;height:1px;background:var(--cyan);
}

/* 10. Image containers (页面阶段放置 <img>) -------------------------------- */
.media-frame{
  position:relative;overflow:hidden;isolation:isolate;
  aspect-ratio:16 / 9;
  border:1px solid var(--line);border-radius:var(--r-l);
  background:
    radial-gradient(120% 90% at 12% 0%, rgba(53,242,206,.14), transparent 62%),
    linear-gradient(150deg,#0A1425,#060C1C 70%);
}
.media-frame img{width:100%;height:100%;object-fit:cover}
.media-frame::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,transparent 52%,rgba(6,12,28,.72));
}
.media-frame--wide{aspect-ratio:21 / 9}
.media-frame--square{aspect-ratio:1 / 1}
.media-frame--portrait{aspect-ratio:4 / 5}
.media-frame--tall{aspect-ratio:3 / 4}
.media-hint{
  position:absolute;inset:0;z-index:1;
  display:grid;place-items:center;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.22em;
  text-transform:uppercase;color:var(--mist);text-align:center;padding:16px;
}
.media-caption{
  margin-top:10px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;color:var(--mist);
}

/* 11. Motion & reveal ----------------------------------------------------- */
html.js-reveal [data-reveal]{
  opacity:0;transform:translateY(18px);
  transition:opacity .5s ease,transform .55s cubic-bezier(.22,.7,.3,1);
}
html.js-reveal [data-reveal].is-visible{opacity:1;transform:none}
html.js-reveal [data-reveal][data-delay="1"]{transition-delay:.07s}
html.js-reveal [data-reveal][data-delay="2"]{transition-delay:.14s}
html.js-reveal [data-reveal][data-delay="3"]{transition-delay:.21s}
html.js-reveal [data-reveal][data-delay="4"]{transition-delay:.28s}

@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .status-dot{animation:none;box-shadow:0 0 0 3px rgba(53,242,206,.22)}
  html.js-reveal [data-reveal]{opacity:1 !important;transform:none !important}
  .nav-link:hover,.chip:hover,.card:hover,.footer-link:hover,.btn:hover{transform:none}
}