/* ==========================================================================
   赌包安装指南 · 共享样式表 /assets/site.css
   深墨绿基底 + 铜金结构线 + 霓虹青交互高光 + 蓝图网格
   ========================================================================== */

/* ---------- 1. Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html,body{margin:0;padding:0}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-behavior:smooth}
img,svg,video{display:block;max-width:100%;height:auto}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;padding:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4,h5,h6,p,figure,blockquote,dl,dd{margin:0}

/* ---------- 2. 设计变量 ---------- */
:root{
  --ink:#061714;
  --forest:#0B2B24;
  --pine:#123D33;
  --copper:#C8964A;
  --copper-hi:#E7C47C;
  --neon:#36F2D0;
  --violet:#282C63;
  --wine:#5B2338;
  --ivory:#F4EFE3;
  --mist:#AFC6BD;
  --graphite:#263B34;

  --font-head:"Alibaba PuHuiTi 3.0","HarmonyOS Sans SC","Noto Sans SC",sans-serif;
  --font-body:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-mono:"JetBrains Mono","SFMono-Regular",Consolas,monospace;

  --max:1320px;
  --header-h:78px;
  --line:rgba(200,150,74,.22);
  --line-strong:rgba(200,150,74,.46);
  --line-soft:rgba(38,59,52,.9);
  --glass:linear-gradient(155deg,rgba(18,61,51,.74),rgba(6,23,20,.86));
  --ease:180ms cubic-bezier(.2,.7,.3,1);
}
@media (max-width:1024px){ :root{--header-h:64px} }

/* ---------- 3. 基础排版 ---------- */
body{
  min-height:100vh;
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  color:var(--ivory);
  background-color:var(--ink);
  background-image:
    linear-gradient(rgba(38,59,52,.42) 1px,transparent 1px),
    linear-gradient(90deg,rgba(38,59,52,.42) 1px,transparent 1px),
    radial-gradient(1100px 620px at 82% -10%,rgba(40,44,99,.5),transparent 62%),
    radial-gradient(900px 560px at 2% 0%,rgba(11,43,36,.95),transparent 66%),
    linear-gradient(180deg,#04110f 0%,#061714 44%,#05130f 100%);
  background-size:64px 64px,64px 64px,auto,auto,auto;
  background-repeat:repeat,repeat,no-repeat,no-repeat,no-repeat;
  background-attachment:fixed,fixed,fixed,fixed,fixed;
}
@media (max-width:768px){
  body{background-attachment:scroll,scroll,scroll,scroll,scroll}
}

h1,h2,h3,h4{
  font-family:var(--font-head);
  font-weight:800;
  letter-spacing:-.02em;
  line-height:1.18;
  color:var(--ivory);
}
h1{font-size:clamp(30px,4.4vw,56px)}
h2{font-size:clamp(23px,2.6vw,34px)}
h3{font-size:clamp(17px,1.6vw,21px);letter-spacing:-.01em;line-height:1.34}
h4{font-size:clamp(15px,1.2vw,17px);line-height:1.4}
strong{color:var(--copper-hi);font-weight:700}
code,.mono{font-family:var(--font-mono);font-size:.92em;letter-spacing:0}
::selection{background:rgba(54,242,208,.28);color:var(--ivory)}

:focus-visible{
  outline:2px solid var(--neon);
  outline-offset:3px;
  box-shadow:0 0 0 5px rgba(6,23,20,.92);
  border-radius:4px;
}

/* ---------- 4. 布局骨架 ---------- */
.wrap{
  width:100%;
  max-width:var(--max);
  margin-inline:auto;
  padding-inline:clamp(18px,4vw,40px);
}
.site-main{padding-top:var(--header-h)}
.section{padding-block:clamp(40px,6vw,80px)}

.grid{display:grid;gap:clamp(16px,2.4vw,28px)}
.grid--12{grid-template-columns:repeat(12,minmax(0,1fr))}
@media (max-width:900px){ .grid--12{grid-template-columns:repeat(6,minmax(0,1fr))} }
@media (max-width:600px){ .grid--12{grid-template-columns:repeat(2,minmax(0,1fr))} }

/* ---------- 5. 跳转链接 ---------- */
.skip-link{
  position:fixed;
  left:16px;
  top:-80px;
  z-index:200;
  padding:10px 18px;
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.04em;
  color:#08150f;
  background:linear-gradient(135deg,var(--copper-hi),var(--copper));
  border-radius:0 0 10px 10px;
  transition:top var(--ease);
}
.skip-link:focus{top:0}

/* ---------- 6. 品牌锁定 ---------- */
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  min-height:44px;
  color:var(--ivory);
}
.brand__mark{
  position:relative;
  flex:none;
  display:block;
  width:26px;
  height:26px;
  border:1px solid var(--copper);
  background:linear-gradient(140deg,rgba(200,150,74,.34),rgba(11,43,36,.92));
  clip-path:polygon(0 0,100% 0,100% calc(100% - 8px),calc(100% - 8px) 100%,0 100%);
}
.brand__mark::after{
  content:"";
  position:absolute;
  inset:0;
  margin:auto;
  width:8px;
  height:8px;
  border-radius:50%;
  background:var(--neon);
  box-shadow:0 0 10px rgba(54,242,208,.85);
}
.brand__text{display:flex;flex-direction:column;line-height:1.16}
.brand__name{
  font-family:var(--font-head);
  font-weight:800;
  font-size:16.5px;
  letter-spacing:-.01em;
  color:var(--ivory);
}
.brand__tag{
  font-family:var(--font-mono);
  font-size:10.5px;
  letter-spacing:.1em;
  color:var(--mist);
}
.brand--footer .brand__name{font-size:18px}
.brand--footer .brand__tag{letter-spacing:.05em;color:rgba(200,150,74,.9)}

/* ---------- 7. 头部 ---------- */
.site-header{
  position:fixed;
  inset:0 0 auto 0;
  z-index:80;
  color:var(--ivory);
  background:linear-gradient(180deg,rgba(6,23,20,.88) 0%,rgba(6,23,20,.34) 64%,rgba(6,23,20,0) 100%);
  border-bottom:1px solid transparent;
  transition:background-color 220ms ease,border-color 220ms ease,box-shadow 220ms ease;
}
.site-header[data-scrolled]{
  background:rgba(9,34,28,.97);
  border-bottom-color:var(--line-strong);
  box-shadow:0 20px 44px -30px rgba(0,0,0,.95);
}
.header-inner{
  display:grid;
  grid-template-columns:auto minmax(0,1fr) auto;
  align-items:center;
  gap:clamp(16px,3vw,40px);
  min-height:var(--header-h);
  width:100%;
  max-width:var(--max);
  margin-inline:auto;
  padding-inline:clamp(16px,3vw,36px);
}
.site-header__progress{
  position:absolute;
  left:0;
  bottom:-1px;
  display:block;
  width:100%;
  height:2px;
  transform:scaleX(0);
  transform-origin:0 50%;
  background:linear-gradient(90deg,var(--copper) 0%,var(--copper-hi) 48%,var(--neon) 100%);
  transition:transform 120ms linear;
  pointer-events:none;
}

/* 导航 */
.site-nav{display:flex;justify-content:center;min-width:0}
.nav-list{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:clamp(2px,1.4vw,18px);
  flex-wrap:nowrap;
  counter-reset:navidx;
}
.nav-list li{position:relative;counter-increment:navidx}
.nav-list li::before{content:none}
.nav-list a{
  position:relative;
  display:inline-flex;
  align-items:center;
  min-height:44px;
  padding:0 6px;
  font-size:14.5px;
  font-weight:500;
  letter-spacing:.02em;
  color:var(--mist);
  white-space:nowrap;
  transition:color var(--ease);
}
.nav-list a::after{
  content:"";
  position:absolute;
  left:6px;
  right:6px;
  bottom:9px;
  height:2px;
  background:linear-gradient(90deg,var(--copper),var(--copper-hi));
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform 200ms ease;
}
.nav-list a:hover,.nav-list a:focus-visible{color:var(--ivory)}
.nav-list a:hover::after,.nav-list a:focus-visible::after{transform:scaleX(1)}
.nav-list a[aria-current="page"]{color:var(--copper-hi);font-weight:700}
.nav-list a[aria-current="page"]::after{
  transform:scaleX(1);
  background:linear-gradient(90deg,var(--copper-hi),var(--neon));
}

/* 移动端固定入口（桌面隐藏） */
.nav-pinned{display:none}

/* 移动导航按钮 */
.nav-toggle{
  display:none;
  align-items:center;
  justify-content:center;
  width:46px;
  height:46px;
  border:1px solid rgba(200,150,74,.42);
  border-radius:10px;
  background:rgba(18,61,51,.6);
  color:var(--ivory);
  transition:border-color var(--ease),background-color var(--ease);
}
.nav-toggle:hover{border-color:var(--neon);background:rgba(54,242,208,.1)}
.nav-toggle__bars{
  position:relative;
  display:block;
  width:20px;
  height:2px;
  background:currentColor;
  transition:transform 220ms ease;
}
.nav-toggle__bars::before,
.nav-toggle__bars::after{
  content:"";
  position:absolute;
  left:0;
  width:20px;
  height:2px;
  background:currentColor;
  transition:transform 220ms ease,opacity 180ms ease;
}
.nav-toggle__bars::before{top:-6px}
.nav-toggle__bars::after{top:6px}
.site-header[data-open] .nav-toggle__bars{transform:rotate(45deg)}
.site-header[data-open] .nav-toggle__bars::before{transform:translateY(6px) rotate(-90deg)}
.site-header[data-open] .nav-toggle__bars::after{opacity:0}

/* 头部操作区 */
.header-actions{display:flex;align-items:center;gap:10px}

/* ---------- 8. 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:0 18px;
  font-family:var(--font-mono);
  font-size:13px;
  font-weight:600;
  letter-spacing:.04em;
  line-height:1;
  border:1px solid transparent;
  border-radius:8px;
  white-space:nowrap;
  transition:transform var(--ease),background-color var(--ease),border-color var(--ease),color var(--ease),box-shadow var(--ease);
}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn--primary{
  color:#08150f;
  background:linear-gradient(135deg,var(--copper-hi),var(--copper));
  box-shadow:0 12px 26px -16px rgba(200,150,74,.95);
}
.btn--primary:hover{background:linear-gradient(135deg,#f2d99b,var(--copper-hi))}
.btn--ghost{
  color:var(--ivory);
  border-color:rgba(200,150,74,.4);
  background:rgba(18,61,51,.55);
}
.btn--ghost:hover{
  color:var(--neon);
  border-color:rgba(54,242,208,.72);
  background:rgba(54,242,208,.1);
}
.btn--sm{font-size:12px;padding:0 14px}

/* ---------- 9. 通用文本组件 ---------- */
.section-head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:12px 28px;
  margin-bottom:clamp(20px,3vw,34px);
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:9px;
  font-family:var(--font-mono);
  font-size:11.5px;
  font-weight:600;
  letter-spacing:.16em;
  color:var(--copper);
}
.eyebrow::before{
  content:"";
  width:22px;
  height:1px;
  background:var(--copper);
}
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:2px 9px;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.04em;
  border-radius:999px;
  border:1px solid rgba(200,150,74,.36);
  background:rgba(200,150,74,.1);
  color:var(--copper-hi);
}
.tag--neon{
  border-color:rgba(54,242,208,.42);
  background:rgba(54,242,208,.1);
  color:var(--neon);
}
.dot{
  display:inline-block;
  flex:none;
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--neon);
  box-shadow:0 0 8px rgba(54,242,208,.9);
}

/* ---------- 10. 卡片与图片容器 ---------- */
.card{
  position:relative;
  padding:clamp(18px,2.2vw,26px);
  border:1px solid var(--line);
  border-radius:12px;
  background:var(--glass);
  transition:transform 200ms ease,border-color 200ms ease,background-color 200ms ease;
}
.card:hover{transform:translateY(-2px);border-color:rgba(200,150,74,.55)}

.media-frame{
  position:relative;
  overflow:hidden;
  isolation:isolate;
  aspect-ratio:16 / 10;
  border:1px solid var(--line);
  border-radius:10px;
  background:
    radial-gradient(120% 100% at 80% 0%,rgba(40,44,99,.62),transparent 62%),
    linear-gradient(150deg,rgba(18,61,51,.9),rgba(6,23,20,.96));
}
.media-frame::after{
  content:"";
  position:absolute;
  inset:0;
  z-index:1;
  pointer-events:none;
  background:linear-gradient(180deg,rgba(6,23,20,0) 52%,rgba(6,23,20,.78) 100%);
}
.media-frame img{
  width:100%;
  height:100%;
  object-fit:cover;
}
.media-frame--wide{aspect-ratio:21 / 9}
.media-frame--tall{aspect-ratio:3 / 4}
.media-frame--square{aspect-ratio:1 / 1}
.media-frame__tag{
  position:absolute;
  left:12px;
  bottom:12px;
  z-index:2;
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:3px 10px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.06em;
  color:var(--copper-hi);
  background:rgba(6,23,20,.82);
  border:1px solid var(--line);
  border-radius:999px;
}

/* ---------- 11. 面包屑与长文 ---------- */
.breadcrumb{margin-block:clamp(18px,2.6vw,30px)}
.breadcrumb ol{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.03em;
  color:var(--mist);
}
.breadcrumb li{display:inline-flex;align-items:center;gap:8px}
.breadcrumb li + li::before{content:"/";color:rgba(200,150,74,.6)}
.breadcrumb a{transition:color var(--ease)}
.breadcrumb a:hover{color:var(--copper-hi)}
.breadcrumb [aria-current="page"]{color:var(--ivory)}

.prose{max-width:74ch}
.prose p{margin-block:0 1.1em;font-size:16.5px;line-height:1.85;color:rgba(244,239,227,.9)}
.prose h2{margin-block:1.8em .6em}
.prose h3{margin-block:1.6em .5em;color:var(--copper-hi)}
.prose ul,.prose ol{margin-block:0 1.2em;padding-left:1.3em;list-style:disc}
.prose ul li,.prose ol li{margin-block:.4em}
.prose a{color:var(--copper-hi);text-decoration:underline;text-underline-offset:3px;text-decoration-color:rgba(200,150,74,.55)}
.prose a:hover{color:var(--neon);text-decoration-color:rgba(54,242,208,.7)}

/* ---------- 12. 页脚 ---------- */
.site-footer{
  position:relative;
  z-index:1;
  margin-top:clamp(56px,8vw,110px);
  padding-bottom:clamp(22px,3.6vw,34px);
  background:linear-gradient(180deg,#061714 0%,#04110f 100%);
  border-top:1px solid rgba(200,150,74,.2);
}
.footer-rule{
  height:3px;
  background:repeating-linear-gradient(90deg,var(--copper) 0 14px,transparent 14px 28px);
  opacity:.45;
}
.footer-main{
  display:grid;
  grid-template-columns:minmax(230px,1.5fr) 1fr 1fr 1.4fr;
  gap:clamp(22px,3.4vw,48px);
  padding-top:clamp(34px,5vw,58px);
  padding-bottom:clamp(26px,4vw,46px);
}
.footer-brand__note{
  margin-top:14px;
  max-width:34ch;
  font-size:14.5px;
  line-height:1.75;
  color:var(--mist);
}
.footer-brand__meta{
  margin-top:12px;
  display:flex;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.03em;
  color:rgba(175,198,189,.86);
}
.footer-col__title{
  margin-bottom:14px;
  padding-bottom:10px;
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:600;
  letter-spacing:.16em;
  color:var(--copper);
  border-bottom:1px solid var(--line-soft);
}
.footer-links{display:flex;flex-direction:column;gap:2px}
.footer-links a{
  display:inline-flex;
  align-items:center;
  gap:9px;
  min-height:38px;
  font-size:14.5px;
  color:var(--mist);
  transition:color var(--ease),transform var(--ease);
}
.footer-links a::before{
  content:"";
  flex:none;
  width:6px;
  height:1px;
  background:rgba(200,150,74,.62);
  transition:width var(--ease),background-color var(--ease);
}
.footer-links a:hover{color:var(--copper-hi)}
.footer-links a:hover::before{width:14px;background:var(--neon)}
.footer-contact{display:flex;flex-direction:column;gap:12px}
.footer-contact li{display:flex;flex-direction:column;gap:1px}
.footer-contact__key{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.14em;
  color:rgba(200,150,74,.88);
}
.footer-contact__val{
  font-size:14px;
  line-height:1.6;
  color:var(--ivory);
  word-break:break-word;
}
.footer-contact__note{
  margin-top:16px;
  padding-left:10px;
  border-left:2px solid rgba(54,242,208,.48);
  font-size:12.5px;
  line-height:1.7;
  color:var(--mist);
}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px 22px;
  padding-top:18px;
  border-top:1px solid var(--line-soft);
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.03em;
  color:rgba(175,198,189,.8);
}
.footer-bottom__note{margin-left:auto;color:rgba(175,198,189,.68)}

/* ---------- 13. 入场（JS 开启 .js-reveal 后生效） ---------- */
.js-reveal [data-reveal]{
  opacity:0;
  transform:translateY(14px);
  transition:opacity 420ms ease,transform 420ms ease;
}
.js-reveal [data-reveal].is-visible{opacity:1;transform:none}

/* ---------- 14. 响应式 ---------- */
@media (max-width:1180px){
  .header-actions .btn--ghost{display:none}
}

@media (max-width:1024px){
  .header-inner{
    grid-template-columns:minmax(0,1fr) auto;
    gap:12px;
  }
  .header-actions{display:none}
  .nav-toggle{display:inline-flex;grid-column:2}
  .site-nav{
    position:fixed;
    top:var(--header-h);
    left:0;
    right:0;
    display:block;
    max-height:calc(100vh - var(--header-h));
    max-height:calc(100dvh - var(--header-h));
    overflow-y:auto;
    padding:14px clamp(16px,4vw,28px) 26px;
    background:linear-gradient(180deg,#0B2B24 0%,#061714 100%);
    border-top:1px solid rgba(200,150,74,.18);
    border-bottom:1px solid rgba(200,150,74,.34);
    box-shadow:0 34px 70px -34px rgba(0,0,0,.95);
    opacity:0;
    visibility:hidden;
    transform:translateY(-12px);
    transition:opacity 200ms ease,transform 200ms ease,visibility 200ms ease;
  }
  .site-header[data-open]{background:rgba(9,34,28,.985);border-bottom-color:var(--line-strong)}
  .site-header[data-open] .site-nav,
  .site-nav[data-open]{
    opacity:1;
    visibility:visible;
    transform:none;
  }
  .nav-pinned{
    display:block;
    margin-bottom:14px;
    padding:11px 14px;
    border-left:3px solid var(--neon);
    border-radius:0 10px 10px 0;
    background:linear-gradient(90deg,rgba(54,242,208,.13),rgba(54,242,208,0));
  }
  .nav-pinned__kicker{
    font-family:var(--font-mono);
    font-size:10.5px;
    letter-spacing:.14em;
    color:rgba(54,242,208,.9);
  }
  .nav-pinned__link{
    display:inline-flex;
    align-items:center;
    gap:8px;
    min-height:34px;
    margin-top:2px;
    font-family:var(--font-head);
    font-size:15.5px;
    font-weight:700;
    color:var(--ivory);
  }
  .nav-pinned__link::after{
    content:"";
    width:7px;
    height:7px;
    border-top:1px solid var(--neon);
    border-right:1px solid var(--neon);
    transform:rotate(45deg);
  }
  .nav-pinned__link:hover{color:var(--neon)}

  .site-nav .nav-list{
    flex-direction:column;
    align-items:stretch;
    gap:0;
    counter-reset:navidx;
  }
  .site-nav .nav-list li{
    counter-increment:navidx;
    border-bottom:1px solid var(--line-soft);
  }
  .site-nav .nav-list li::before{
    content:counter(navidx,decimal-leading-zero);
    position:absolute;
    left:2px;
    top:50%;
    transform:translateY(-50%);
    font-family:var(--font-mono);
    font-size:11px;
    letter-spacing:.08em;
    color:rgba(200,150,74,.64);
    pointer-events:none;
  }
  .site-nav .nav-list li::after{
    content:"";
    position:absolute;
    right:8px;
    top:50%;
    width:7px;
    height:7px;
    margin-top:-4px;
    border-top:1px solid rgba(200,150,74,.72);
    border-right:1px solid rgba(200,150,74,.72);
    transform:rotate(45deg);
    pointer-events:none;
  }
  .site-nav .nav-list a{
    min-height:52px;
    padding:0 26px 0 34px;
    font-size:16px;
    color:var(--ivory);
  }
  .site-nav .nav-list a::after{display:none}
  .site-nav .nav-list a[aria-current="page"]{color:var(--copper-hi)}

  .footer-main{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-brand{grid-column:1 / -1}
}

@media (max-width:600px){
  .footer-main{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:6px}
  .footer-bottom__note{margin-left:0}
}

@media (max-width:420px){
  .brand__tag{display:none}
}

/* ---------- 15. 动效偏好 ---------- */
@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}
  .btn:hover,.card:hover{transform:none}
}