/* ===========================================================
   哈哈体育信誉 / assets/site.css
   共享外壳：reset、变量、中文排版、header、footer、基础组件
   =========================================================== */

/* ---------- 1. Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body,h1,h2,h3,h4,h5,p,ul,ol,li,figure,figcaption,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
a{color:inherit;text-decoration:none}
svg{display:block}
[hidden]{display:none}

/* ---------- 2. Tokens ---------- */
:root{
  --ink:#0D2A21;
  --ink-panel:#16382C;
  --ink-deep:#07120E;
  --paper:#F1EBDC;
  --paper-shade:#DCD4C0;
  --paper-ink:#0B1F19;
  --fluoro:#C9FF3F;
  --score:#FF5B37;
  --steel:#8CA6B9;
  --steel-light:#B9CBD8;

  --line-dark:rgba(185,203,216,.24);
  --line-dark-soft:rgba(185,203,216,.14);
  --line-paper:rgba(11,31,25,.16);

  --muted:var(--steel-light);
  --strong:var(--paper);

  --shell:1240px;
  --gutter:clamp(20px,5vw,64px);
  --header-h:84px;

  --font-sans:"Noto Sans SC",system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
  --font-mono:"JetBrains Mono",ui-monospace,"SFMono-Regular",Consolas,monospace;
}

/* ---------- 3. Base ---------- */
body{
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.78;
  font-weight:400;
  background:var(--ink);
  color:var(--paper);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.is-nav-open{overflow:hidden}
::selection{background:var(--fluoro);color:var(--paper-ink)}

.display{
  font-weight:900;
  font-size:clamp(2.6rem,7vw,6.4rem);
  line-height:1.02;
  letter-spacing:-.045em;
  color:var(--strong);
}
.h2{
  font-weight:700;
  font-size:clamp(1.6rem,3vw,2.6rem);
  line-height:1.14;
  letter-spacing:-.015em;
  color:var(--strong);
}
.h3{
  font-weight:700;
  font-size:clamp(1.15rem,1.6vw,1.35rem);
  line-height:1.4;
  letter-spacing:-.01em;
  color:var(--strong);
}
.lede{
  font-size:clamp(1.02rem,1.4vw,1.2rem);
  line-height:1.7;
  max-width:60ch;
  color:var(--muted);
}
p{max-width:68ch}

.mono{
  font-family:var(--font-mono);
  font-weight:500;
  font-variant-numeric:tabular-nums;
  letter-spacing:.02em;
}
.annot{
  display:block;
  font-family:var(--font-sans);
  font-size:11px;
  font-weight:500;
  letter-spacing:.18em;
  line-height:1.6;
  color:var(--muted);
}
.annot--vertical{
  writing-mode:vertical-rl;
  text-orientation:mixed;
  letter-spacing:.34em;
}

/* ---------- 4. Layout ---------- */
.shell{
  width:100%;
  max-width:var(--shell);
  margin-inline:auto;
  padding-inline:var(--gutter);
}
.page-top{padding-top:calc(var(--header-h) + clamp(24px,4vw,56px))}

.band{position:relative;padding-block:clamp(56px,8vw,120px)}
.band--ink{background:var(--ink);color:var(--paper)}
.band--deep{background:var(--ink-deep);color:var(--paper)}
.band--paper{background:var(--paper);color:var(--paper-ink);--muted:#4C5B54;--strong:var(--paper-ink)}

.grid{display:grid;gap:clamp(20px,2.6vw,36px)}
.grid--12{grid-template-columns:repeat(12,minmax(0,1fr))}
.span-4{grid-column:span 4}
.span-5{grid-column:span 5}
.span-6{grid-column:span 6}
.span-7{grid-column:span 7}
.span-8{grid-column:span 8}
.split{
  display:grid;
  grid-template-columns:minmax(0,7fr) minmax(0,4fr);
  gap:clamp(24px,3vw,48px);
  align-items:start;
}

/* ---------- 5. Buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.55em;
  min-height:48px;
  padding:0 22px;
  border:1px solid transparent;
  border-radius:0;
  font-family:var(--font-sans);
  font-size:.95rem;
  font-weight:700;
  line-height:1;
  letter-spacing:.01em;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease;
}
.btn--primary{background:var(--fluoro);color:var(--paper-ink);border-color:var(--fluoro)}
.btn--primary:hover{background:#D8FF6E;border-color:#D8FF6E}
.btn--primary:active{transform:translateY(1px)}
.btn--ghost{background:transparent;color:var(--paper);border-color:rgba(201,255,63,.48)}
.btn--ghost:hover{border-color:var(--fluoro);color:var(--fluoro)}
.btn--sm{min-height:40px;padding:0 16px;font-size:.85rem}
.btn--block{width:100%}

/* ---------- 6. Skip link & focus ---------- */
.skip-link{
  position:fixed;
  top:12px;
  left:12px;
  z-index:300;
  padding:12px 18px;
  background:var(--fluoro);
  color:var(--paper-ink);
  font-size:.9rem;
  font-weight:700;
  transform:translateY(-200%);
  transition:transform .18s ease;
}
.skip-link:focus{transform:translateY(0)}

:focus-visible{outline:2px solid var(--fluoro);outline-offset:3px}
.band--paper :focus-visible{outline-color:var(--paper-ink)}
.site-footer :focus-visible{outline-color:var(--fluoro)}

/* ---------- 7. Header ---------- */
.site-header{
  position:fixed;
  inset:0 0 auto 0;
  z-index:100;
  color:var(--paper);
  background:linear-gradient(180deg,rgba(7,18,14,.88) 0%,rgba(7,18,14,.52) 58%,rgba(7,18,14,0) 100%);
  border-bottom:1px solid transparent;
  transition:background-color .25s ease,border-color .25s ease;
}
.site-header[data-scrolled="true"]{
  background:var(--ink);
  border-bottom-color:var(--line-dark);
}
.site-header[data-nav-open="true"]{background:var(--ink-deep)}
.site-header__inner{
  display:flex;
  align-items:center;
  gap:clamp(14px,2vw,32px);
  min-height:var(--header-h);
  padding-block:12px;
  transition:min-height .25s ease,padding .25s ease;
}
.site-header[data-scrolled="true"] .site-header__inner{min-height:64px;padding-block:8px}

/* Brand */
.brand{display:inline-flex;align-items:center;gap:12px;flex:0 0 auto;color:var(--paper)}
.brand__mark{
  display:grid;
  place-items:center;
  width:36px;
  height:36px;
  border:1px solid var(--line-dark);
  color:var(--fluoro);
}
.brand__mark svg{width:21px;height:21px}
.brand__text{display:flex;flex-direction:column;line-height:1.05}
.brand__name{font-size:1.06rem;font-weight:900;letter-spacing:-.02em}
.brand__meta{
  margin-top:5px;
  font-family:var(--font-mono);
  font-size:9px;
  font-weight:500;
  letter-spacing:.2em;
  color:var(--steel-light);
}

/* Nav */
.site-nav{
  display:flex;
  align-items:center;
  gap:clamp(16px,2.2vw,30px);
  margin-inline:auto;
}
.site-nav__group{display:flex;align-items:center}
.site-nav__group-title{display:none}
.site-nav__list{display:flex;align-items:center;gap:clamp(16px,2vw,28px)}
.site-nav__link{
  position:relative;
  display:inline-block;
  padding:6px 0;
  font-size:.94rem;
  font-weight:500;
  color:rgba(241,235,220,.84);
  white-space:nowrap;
  transition:color .18s ease;
}
.site-nav__link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:1px;
  background:var(--fluoro);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .18s ease;
}
.site-nav__link:hover{color:var(--fluoro)}
.site-nav__link:hover::after{transform:scaleX(1)}
.site-nav__link[aria-current="page"]{color:var(--fluoro)}
.site-nav__link[aria-current="page"]::after{transform:scaleX(1)}
.site-nav__foot{display:none}

/* Header actions */
.site-header__actions{
  display:flex;
  align-items:center;
  gap:clamp(12px,1.6vw,22px);
  flex:0 0 auto;
}
.header-link{
  font-size:.9rem;
  font-weight:500;
  color:var(--steel-light);
  padding-bottom:2px;
  border-bottom:1px solid transparent;
  transition:color .18s ease,border-color .18s ease;
}
.header-link:hover{color:var(--fluoro);border-bottom-color:rgba(201,255,63,.55)}

/* Toggle */
.nav-toggle{
  position:relative;
  z-index:130;
  display:none;
  align-items:center;
  gap:8px;
  min-height:40px;
  padding:0 10px;
  border:1px solid var(--line-dark);
  color:var(--paper);
}
.nav-toggle:hover{border-color:var(--fluoro);color:var(--fluoro)}
.nav-toggle__bars{display:grid;gap:4px;width:16px}
.nav-toggle__bars span{display:block;height:1.5px;background:currentColor;transition:transform .2s ease}
.nav-toggle__text{
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.18em;
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:first-child{transform:translateY(2.75px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:last-child{transform:translateY(-2.75px) rotate(-45deg)}

/* Scroll progress */
.scroll-progress{
  position:absolute;
  left:0;right:0;bottom:-1px;
  height:2px;
  background:var(--fluoro);
  transform:scaleX(0);
  transform-origin:left center;
  pointer-events:none;
}

/* Scrim */
.nav-scrim{
  display:none;
  position:fixed;
  inset:0;
  z-index:90;
  background:rgba(7,18,14,.66);
  opacity:0;
  visibility:hidden;
  transition:opacity .22s ease,visibility .22s ease;
}
.nav-scrim[data-open="true"]{opacity:1;visibility:visible}

/* ---------- 8. Footer ---------- */
.site-footer{
  background:var(--ink-deep);
  color:var(--steel-light);
  border-top:1px solid rgba(201,255,63,.28);
  font-size:.94rem;
  --muted:var(--steel-light);
  --strong:var(--paper);
}
.site-footer__inner{padding-block:clamp(40px,5vw,64px) 28px}
.footer-mark{
  font-family:var(--font-mono);
  font-weight:500;
  font-size:clamp(3rem,12vw,9.5rem);
  line-height:.82;
  letter-spacing:-.02em;
  color:transparent;
  -webkit-text-stroke:1px rgba(185,203,216,.18);
  margin-bottom:clamp(20px,3vw,36px);
  user-select:none;
  max-width:none;
}
.footer-lead{
  display:grid;
  grid-template-columns:minmax(0,1fr) auto;
  gap:clamp(20px,3vw,40px);
  align-items:end;
  padding-bottom:clamp(28px,4vw,44px);
  border-bottom:1px solid var(--line-dark);
}
.footer-lead__kicker{color:var(--fluoro);margin-bottom:12px}
.footer-lead__title{
  font-weight:900;
  font-size:clamp(1.4rem,2.6vw,2.05rem);
  line-height:1.18;
  letter-spacing:-.03em;
  color:var(--paper);
  max-width:22ch;
}
.footer-lead__text{margin-top:14px;max-width:46ch;color:var(--steel-light)}
.footer-lead__actions{display:flex;flex-wrap:wrap;gap:12px}

.footer-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:clamp(24px,3vw,48px);
  padding-block:clamp(28px,4vw,48px);
  border-bottom:1px solid var(--line-dark);
}
.footer-col__title{
  margin-bottom:16px;
  font-family:var(--font-mono);
  font-size:10px;
  font-weight:500;
  letter-spacing:.24em;
  color:var(--fluoro);
}
.footer-col__list{display:grid;gap:10px}
.footer-link{
  display:inline-block;
  color:var(--steel-light);
  border-bottom:1px solid transparent;
  transition:color .18s ease,border-color .18s ease;
}
.footer-link:hover{color:var(--fluoro);border-bottom-color:rgba(201,255,63,.55)}

.footer-contact{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:clamp(18px,2.4vw,32px);
  padding-block:clamp(24px,3vw,36px);
  border-bottom:1px solid var(--line-dark);
}
.footer-contact__item{min-width:0}
.footer-contact__label{
  margin-bottom:8px;
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.2em;
  color:var(--steel);
}
.footer-contact__value{
  color:var(--paper);
  font-size:.92rem;
  line-height:1.6;
  word-break:break-word;
  max-width:none;
}
.footer-legal{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px 24px;
  padding-top:clamp(20px,2.4vw,28px);
  font-size:.82rem;
  color:var(--steel);
}
.footer-legal__meta{max-width:none}
.footer-legal__links{display:flex;flex-wrap:wrap;gap:20px}
.footer-legal__links .footer-link{font-size:.82rem}

/* ---------- 9. Shared components ---------- */
.breadcrumbs{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.14em;
  color:var(--muted);
}
.breadcrumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;max-width:none}
.breadcrumbs li+li::before{content:"/";margin-right:8px;color:rgba(140,166,185,.62)}
.breadcrumbs a{border-bottom:1px solid transparent;transition:color .18s ease,border-color .18s ease}
.breadcrumbs a:hover{color:var(--fluoro);border-bottom-color:rgba(201,255,63,.5)}
.breadcrumbs [aria-current="page"]{color:var(--strong)}

.media-frame{
  position:relative;
  display:block;
  overflow:hidden;
  background:var(--ink-panel);
  border:1px solid rgba(140,166,185,.3);
}
.media-frame::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(158deg,rgba(13,42,33,.08) 0%,rgba(7,18,14,.58) 100%);
  pointer-events:none;
}
.media-frame img,.media-frame svg{display:block;width:100%;height:100%;object-fit:cover}
.media-frame--16x9{aspect-ratio:16/9}
.media-frame--4x3{aspect-ratio:4/3}
.media-frame--3x2{aspect-ratio:3/2}
.media-frame--1x1{aspect-ratio:1/1}
.media-frame__caption{
  position:absolute;
  left:0;bottom:0;
  z-index:2;
  padding:10px 14px;
  font-family:var(--font-mono);
  font-size:10.5px;
  letter-spacing:.16em;
  color:var(--paper);
  background:rgba(7,18,14,.82);
  border-top:1px solid rgba(140,166,185,.32);
  max-width:none;
}

[data-reveal]{
  opacity:0;
  transform:translateY(14px);
  transition:opacity .55s ease,transform .55s ease;
  transition-delay:var(--reveal-delay,0ms);
  will-change:opacity,transform;
}
[data-reveal].is-revealed{opacity:1;transform:none}

.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;
  border:0;
}

/* ---------- 10. Responsive ---------- */
@media (max-width:1100px){
  .header-link{display:none}
}
@media (max-width:1024px){
  .site-header__inner{gap:12px}
  .nav-toggle{display:inline-flex}
  .nav-scrim{display:block}
  .site-nav{
    position:fixed;
    top:0;right:0;bottom:0;
    z-index:120;
    width:min(88vw,380px);
    flex-direction:column;
    align-items:stretch;
    gap:0;
    margin:0;
    padding:calc(var(--header-h) + 12px) var(--gutter) 32px;
    background:var(--ink-deep);
    border-left:1px solid var(--line-dark);
    overflow-y:auto;
    overscroll-behavior:contain;
    transform:translateX(100%);
    visibility:hidden;
    transition:transform .28s cubic-bezier(.4,0,.2,1),visibility .28s ease;
  }
  .site-nav[data-open="true"]{transform:none;visibility:visible}
  .site-nav__group{
    display:block;
    padding:18px 0;
    border-bottom:1px solid var(--line-dark-soft);
  }
  .site-nav__group-title{
    display:block;
    margin-bottom:10px;
    font-family:var(--font-mono);
    font-size:10px;
    font-weight:500;
    letter-spacing:.24em;
    color:var(--fluoro);
  }
  .site-nav__list{flex-direction:column;align-items:stretch;gap:2px}
  .site-nav__link{
    display:flex;
    align-items:center;
    justify-content:space-between;
    padding:12px 0;
    font-size:1.06rem;
    color:var(--paper);
  }
  .site-nav__link::after{display:none}
  .site-nav__link[aria-current="page"]{color:var(--fluoro)}
  .site-nav__foot{display:block;padding-top:24px}
  .site-nav__foot-label{
    font-family:var(--font-mono);
    font-size:10px;
    letter-spacing:.22em;
    color:var(--steel);
    margin-bottom:10px;
  }
  .site-nav__foot-item{
    font-family:var(--font-mono);
    font-size:.85rem;
    color:var(--steel-light);
    max-width:none;
  }
  .site-nav__foot .btn{margin-top:18px}
  .footer-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
}
@media (max-width:900px){
  .grid--12{grid-template-columns:repeat(6,minmax(0,1fr))}
  .span-7,.span-8{grid-column:span 6}
  .span-4,.span-5,.span-6{grid-column:span 3}
  .split{grid-template-columns:minmax(0,1fr)}
  .footer-lead{grid-template-columns:minmax(0,1fr);align-items:start}
  .footer-contact{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:640px){
  body{font-size:16px;line-height:1.8}
  .brand__meta{display:none}
  .brand__name{font-size:1rem}
  .header-subscribe{display:none}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:26px}
  .footer-contact{grid-template-columns:minmax(0,1fr)}
  .footer-legal{flex-direction:column;align-items:flex-start;gap:10px}
  .grid--12{grid-template-columns:minmax(0,1fr)}
  .span-4,.span-5,.span-6,.span-7,.span-8{grid-column:1/-1}
}

/* ---------- 11. Reduced motion ---------- */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    transition-delay:0ms !important;
    scroll-behavior:auto !important;
  }
  html{scroll-behavior:auto}
  [data-reveal]{opacity:1;transform:none}
  .scroll-progress{display:none}
}