/* ============================================================
   百利娱乐 · 共享站点样式  /assets/site.css
   深墨绿档案脊 + 琥珀金索引 + 切角面板
   ============================================================ */

:root{
  --ink:#071A16;
  --deep:#0B2B26;
  --panel:#123A33;
  --moss:#2F6B5B;
  --amber:#E8A83E;
  --amber-hi:#F4C97A;
  --mist:#8FB3C9;
  --coral:#E8795A;
  --paper:#F4EFE4;
  --muted:#7F998F;

  --font-head:"HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC",sans-serif;
  --font-body:"Inter","Noto Sans SC","PingFang SC",sans-serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono","SFMono-Regular",monospace;

  --shell:1240px;
  --pad-x:clamp(18px,4vw,56px);
  --gap:clamp(16px,2vw,30px);
  --ease:cubic-bezier(.22,.7,.28,1);
  --hairline:rgba(47,107,91,.45);
  --cut:polygon(0 0,calc(100% - 14px) 0,100% 14px,100% 100%,14px 100%,0 calc(100% - 14px));
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:96px}
body{
  margin:0;
  background-color:var(--ink);
  background-image:
    radial-gradient(1100px 520px at 10% -8%,rgba(47,107,91,.34),transparent 70%),
    radial-gradient(880px 440px at 92% 0%,rgba(232,168,62,.10),transparent 72%);
  background-repeat:no-repeat;
  color:var(--paper);
  font-family:var(--font-body);
  font-size:clamp(15.5px,1.05vw,17px);
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img,svg,video{max-width:100%}
ul,ol{margin:0;padding:0}
a{color:inherit}
button{font:inherit}
::selection{background:var(--amber);color:#08130F}

/* ---------- 中文排版 ---------- */
h1,h2,h3,h4{
  font-family:var(--font-head);
  font-weight:800;
  line-height:1.16;
  letter-spacing:-.015em;
  margin:0 0 .55em;
  text-wrap:balance;
}
h1{font-size:clamp(38px,5.4vw,72px);line-height:1.04;letter-spacing:-.03em}
h2{font-size:clamp(26px,3.2vw,42px)}
h3{font-size:clamp(19px,1.9px + 1vw,26px);font-weight:700;line-height:1.3}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
strong{font-weight:700;color:var(--amber-hi)}

/* ---------- 布局工具 ---------- */
.container{
  width:100%;
  max-width:var(--shell);
  margin-inline:auto;
  padding-inline:var(--pad-x);
}
.section{
  position:relative;
  padding-block:clamp(46px,6vw,94px);
}
.grid{display:grid;gap:var(--gap)}
.grid--12{grid-template-columns:repeat(12,minmax(0,1fr))}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}

/* ---------- 索引式文字元素 ---------- */
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  margin:0 0 14px;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--amber);
}
.eyebrow::before{
  content:"";
  width:26px;
  height:1px;
  background:var(--amber);
}
.lede{
  max-width:34em;
  margin:0 0 1.15em;
  font-size:clamp(16px,1.4vw,19px);
  line-height:1.72;
  color:rgba(244,239,228,.84);
}

/* ---------- 面板 ---------- */
.panel{
  position:relative;
  padding:clamp(20px,2.6vw,34px);
  background:linear-gradient(158deg,var(--panel) 0%,#0E322C 58%,#0C2E28 100%);
  border:1px solid var(--hairline);
  color:var(--paper);
}
.panel--cut{
  clip-path:polygon(0 0,calc(100% - 26px) 0,100% 26px,100% 100%,0 100%);
  border-right:0;
  border-top:0;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding:13px 24px;
  border:1px solid transparent;
  font-family:var(--font-head);
  font-size:15px;
  font-weight:700;
  letter-spacing:.02em;
  text-decoration:none;
  cursor:pointer;
  transition:transform .2s var(--ease),background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn--amber{
  background:linear-gradient(150deg,var(--amber-hi),var(--amber));
  color:#08130F;
  clip-path:polygon(0 0,100% 0,100% calc(100% - 12px),calc(100% - 12px) 100%,0 100%);
}
.btn--amber:hover{transform:translateY(-2px)}
.btn--ghost{
  background:rgba(143,179,201,.08);
  border-color:rgba(143,179,201,.42);
  color:var(--mist);
}
.btn--ghost:hover{
  border-color:var(--amber);
  color:var(--amber-hi);
}

/* ---------- 标签 ---------- */
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 10px;
  border:1px solid rgba(143,179,201,.35);
  background:rgba(143,179,201,.08);
  color:var(--mist);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.1em;
  text-transform:uppercase;
}
.tag--amber{
  background:var(--amber);
  border-color:var(--amber);
  color:#08130F;
}
.tag--alert{
  background:rgba(232,121,90,.1);
  border-color:rgba(232,121,90,.5);
  color:var(--coral);
}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  margin:0 0 20px;
  padding:0;
  list-style:none;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--muted);
}
.breadcrumb__link{
  color:var(--mist);
  text-decoration:none;
  transition:color .2s var(--ease);
}
.breadcrumb__link:hover{color:var(--amber-hi)}
.breadcrumb__sep{color:var(--moss)}
.breadcrumb__current{color:var(--amber)}

/* ---------- 图片容器 ---------- */
.figure{
  margin:0;
  display:grid;
  gap:10px;
}
.figure__frame{
  position:relative;
  overflow:hidden;
  aspect-ratio:16 / 9;
  border:1px solid var(--hairline);
  background:linear-gradient(140deg,var(--panel),var(--ink));
}
.figure__frame::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(47,107,91,.16) 1px,transparent 1px),
    linear-gradient(90deg,rgba(47,107,91,.16) 1px,transparent 1px);
  background-size:34px 34px;
  opacity:.75;
}
.figure__img{
  display:block;
  width:100%;
  height:100%;
  object-fit:cover;
}
.figure__caption{
  font-size:13px;
  line-height:1.6;
  color:var(--muted);
}
.figure--wide .figure__frame{aspect-ratio:21 / 9}

/* ============================================================
   页头
   ============================================================ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:linear-gradient(180deg,rgba(11,43,38,.99),rgba(10,39,34,.97));
  border-bottom:1px solid var(--hairline);
  box-shadow:0 18px 40px -32px rgba(0,0,0,.9);
  transition:box-shadow .3s var(--ease);
}
.site-header::before{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background-image:linear-gradient(90deg,rgba(47,107,91,.22) 1px,transparent 1px);
  background-size:88px 100%;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 18%,#000 82%,transparent);
  mask-image:linear-gradient(90deg,transparent,#000 18%,#000 82%,transparent);
  opacity:.6;
}
.site-header.is-condensed{box-shadow:0 22px 46px -26px rgba(0,0,0,.95)}

.skip-link{
  position:fixed;
  top:10px;
  left:10px;
  z-index:200;
  padding:10px 18px;
  background:var(--amber);
  color:#08130F;
  font-weight:700;
  font-size:14px;
  text-decoration:none;
  transform:translateY(-180%);
  transition:transform .2s var(--ease);
}
.skip-link:focus{transform:translateY(0)}

.header-rail{
  display:flex;
  align-items:center;
  gap:clamp(12px,1.6vw,24px);
  width:100%;
  max-width:var(--shell);
  margin-inline:auto;
  padding:13px var(--pad-x) 14px;
  transition:padding .25s var(--ease);
}

/* 品牌 */
.brand{
  display:flex;
  align-items:center;
  gap:12px;
  min-width:0;
}
.brand__link{
  display:inline-flex;
  align-items:center;
  gap:11px;
  text-decoration:none;
  color:var(--paper);
}
.brand__mark{
  display:grid;
  place-items:center;
  width:38px;
  height:38px;
  flex:0 0 auto;
  font-family:var(--font-head);
  font-size:18px;
  font-weight:800;
  color:#08130F;
  background:linear-gradient(150deg,var(--amber-hi),var(--amber));
  clip-path:polygon(0 0,100% 0,100% calc(100% - 12px),calc(100% - 12px) 100%,0 100%);
  box-shadow:0 0 22px -6px rgba(232,168,62,.55);
}
.brand__name{
  font-family:var(--font-head);
  font-size:20px;
  font-weight:800;
  letter-spacing:-.01em;
  white-space:nowrap;
}
.brand__index{
  padding-left:12px;
  border-left:1px solid var(--hairline);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.12em;
  color:var(--muted);
  white-space:nowrap;
}
.brand__tag{
  font-family:var(--font-mono);
  font-size:10.5px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--moss);
  white-space:nowrap;
}

/* 移动开关 */
.nav-toggle{
  display:none;
  align-items:center;
  gap:10px;
  margin-left:auto;
  padding:10px 14px;
  background:rgba(47,107,91,.2);
  border:1px solid rgba(47,107,91,.66);
  color:var(--paper);
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.16em;
  text-transform:uppercase;
  cursor:pointer;
  clip-path:polygon(0 0,100% 0,100% calc(100% - 10px),calc(100% - 10px) 100%,0 100%);
  transition:background-color .2s var(--ease),border-color .2s var(--ease);
}
.nav-toggle:hover{background:rgba(47,107,91,.34);border-color:var(--moss)}
.nav-toggle__bars{
  display:inline-grid;
  gap:4px;
  width:16px;
}
.nav-toggle__bars span{
  display:block;
  height:2px;
  background:var(--amber);
  transition:transform .25s var(--ease);
}
.site-header[data-open] .nav-toggle__bars span:first-child{transform:translateY(3px) rotate(45deg)}
.site-header[data-open] .nav-toggle__bars span:last-child{transform:translateY(-3px) rotate(-45deg)}
.nav-toggle__text{line-height:1}

/* 导航 */
.nav{
  display:flex;
  align-items:center;
  gap:clamp(6px,1.2vw,18px);
  margin-left:auto;
}
.nav__list{
  display:flex;
  align-items:center;
  gap:clamp(0px,.9vw,8px);
  list-style:none;
}
.nav__item{display:block}
.nav__link{
  position:relative;
  display:inline-flex;
  align-items:baseline;
  gap:7px;
  padding:9px 10px;
  color:rgba(244,239,228,.84);
  font-size:15px;
  font-weight:500;
  letter-spacing:.01em;
  text-decoration:none;
  white-space:nowrap;
  transition:color .2s var(--ease),background-color .2s var(--ease);
}
.nav__no{
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.1em;
  color:var(--moss);
  transition:color .2s var(--ease);
}
.nav__link::after{
  content:"";
  position:absolute;
  left:10px;
  right:10px;
  bottom:4px;
  height:2px;
  background:var(--amber);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .25s var(--ease);
}
.nav__link:hover{
  color:var(--paper);
  background:rgba(47,107,91,.24);
}
.nav__link:hover::after{transform:scaleX(1)}
.nav__link[aria-current="page"]{
  color:var(--amber-hi);
  background:rgba(232,168,62,.09);
}
.nav__link[aria-current="page"]::after{transform:scaleX(1)}
.nav__link[aria-current="page"] .nav__no{color:var(--amber)}

/* 快捷入口 */
.header-actions{
  display:flex;
  align-items:center;
  gap:9px;
  padding-left:clamp(6px,1vw,14px);
  border-left:1px solid var(--hairline);
}
.action{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:9px 15px;
  font-family:var(--font-head);
  font-size:13.5px;
  font-weight:700;
  letter-spacing:.02em;
  text-decoration:none;
  white-space:nowrap;
  transition:color .2s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.action--ghost{
  color:var(--mist);
  border:1px solid rgba(143,179,201,.42);
  background:rgba(143,179,201,.06);
}
.action--ghost:hover{
  color:var(--amber-hi);
  border-color:rgba(232,168,62,.6);
  background:rgba(232,168,62,.1);
}
.action--solid{
  color:#08130F;
  background:linear-gradient(150deg,var(--amber-hi),var(--amber));
  clip-path:polygon(0 0,100% 0,100% calc(100% - 11px),calc(100% - 11px) 100%,0 100%);
  box-shadow:0 10px 26px -16px rgba(232,168,62,.9);
}
.action--solid:hover{transform:translateY(-1px)}

/* 阅读进度 */
.header-progress{
  position:absolute;
  left:0;
  right:0;
  bottom:-1px;
  height:2px;
  background:rgba(47,107,91,.32);
  overflow:hidden;
}
.header-progress__bar{
  display:block;
  width:100%;
  height:100%;
  transform:scaleX(0);
  transform-origin:0 50%;
  background:linear-gradient(90deg,var(--moss),var(--amber) 68%,var(--amber-hi));
  transition:transform .12s linear;
}

/* 收束态 */
.site-header.is-condensed .header-rail{padding-top:7px;padding-bottom:8px}
.site-header.is-condensed .brand__tag{opacity:0;transform:translateX(-6px)}
.site-header.is-condensed .brand__mark{width:32px;height:32px;font-size:16px}
.site-header.is-condensed .brand__name{font-size:18px}
.brand__tag{transition:opacity .25s var(--ease),transform .25s var(--ease)}
.brand__mark,.brand__name{transition:width .25s var(--ease),height .25s var(--ease),font-size .25s var(--ease)}

/* ============================================================
   页脚
   ============================================================ */
.site-footer{
  position:relative;
  margin-top:clamp(40px,6vw,90px);
  background:linear-gradient(180deg,var(--deep) 0%,#08201B 56%,var(--ink) 100%);
  border-top:1px solid var(--hairline);
  color:var(--paper);
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;
  left:0;
  right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,var(--amber) 32%,var(--amber-hi) 50%,var(--amber) 68%,transparent);
  opacity:.65;
}
.site-footer::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(47,107,91,.10) 1px,transparent 1px),
    linear-gradient(90deg,rgba(47,107,91,.10) 1px,transparent 1px);
  background-size:72px 72px;
  opacity:.55;
}
.footer-inner{
  position:relative;
  z-index:1;
  width:100%;
  max-width:var(--shell);
  margin-inline:auto;
  padding:clamp(38px,5vw,64px) var(--pad-x) 26px;
}
.footer-top{
  display:grid;
  grid-template-columns:minmax(0,.9fr) minmax(0,1.45fr);
  gap:clamp(28px,4vw,60px);
  align-items:start;
}
.footer-brand{display:grid;gap:12px;justify-items:start}
.footer-brand__mark{
  display:grid;
  place-items:center;
  width:44px;
  height:44px;
  font-family:var(--font-head);
  font-size:20px;
  font-weight:800;
  color:#08130F;
  background:linear-gradient(150deg,var(--amber-hi),var(--amber));
  clip-path:polygon(0 0,100% 0,100% calc(100% - 14px),calc(100% - 14px) 100%,0 100%);
}
.footer-brand__line{
  margin:0;
  font-family:var(--font-head);
  font-size:clamp(17px,1.6vw,21px);
  font-weight:800;
  letter-spacing:-.01em;
  line-height:1.4;
}
.footer-brand__note{
  margin:0;
  max-width:30em;
  font-size:13.5px;
  line-height:1.7;
  color:var(--muted);
}
.footer-nav{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:clamp(16px,2.4vw,34px);
}
.footer-nav__group{min-width:0}
.footer-nav__title{
  margin:0 0 12px;
  padding-bottom:9px;
  border-bottom:1px solid var(--hairline);
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:500;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--amber);
}
.footer-nav__list{
  display:grid;
  gap:8px;
  list-style:none;
}
.footer-nav__link{
  display:inline-flex;
  align-items:center;
  gap:9px;
  font-size:14.5px;
  color:rgba(244,239,228,.78);
  text-decoration:none;
  transition:color .2s var(--ease);
}
.footer-nav__link::before{
  content:"";
  width:10px;
  height:1px;
  background:var(--moss);
  transition:width .2s var(--ease),background-color .2s var(--ease);
}
.footer-nav__link:hover{color:var(--amber-hi)}
.footer-nav__link:hover::before{width:20px;background:var(--amber)}

.footer-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  justify-content:space-between;
  gap:10px 26px;
  margin-top:clamp(26px,3.6vw,44px);
  padding-top:18px;
  border-top:1px solid rgba(47,107,91,.4);
}
.footer-meta p{margin:0}
.footer-meta__contact{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.04em;
  color:var(--mist);
}
.footer-meta__legal{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.08em;
  color:var(--muted);
}
.footer-meta__copy{
  font-size:12.5px;
  letter-spacing:.02em;
  color:var(--muted);
}

/* ============================================================
   交互状态
   ============================================================ */
:focus-visible{
  outline:2px solid var(--amber-hi);
  outline-offset:3px;
  border-radius:1px;
}
#main-content:focus{outline:none}

[data-reveal]{
  opacity:0;
  transform:translateY(16px);
  transition:opacity .6s var(--ease),transform .6s var(--ease);
}
[data-reveal].is-in{opacity:1;transform:none}

.to-top{
  position:fixed;
  right:clamp(14px,3vw,28px);
  bottom:clamp(14px,3vw,28px);
  z-index:80;
  display:grid;
  place-items:center;
  width:46px;
  height:46px;
  padding:0;
  border:0;
  font-size:17px;
  font-weight:700;
  line-height:1;
  color:#08130F;
  background:linear-gradient(150deg,var(--amber-hi),var(--amber));
  cursor:pointer;
  opacity:0;
  visibility:hidden;
  transform:translateY(12px);
  clip-path:polygon(0 0,100% 0,100% calc(100% - 12px),calc(100% - 12px) 100%,0 100%);
  box-shadow:0 16px 34px -18px rgba(232,168,62,.9);
  transition:opacity .25s var(--ease),transform .25s var(--ease),visibility .25s var(--ease);
}
.to-top.is-visible{opacity:1;visibility:visible;transform:none}
.to-top:hover{transform:translateY(-2px)}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width:1280px){
  .brand__tag{display:none}
}
@media (max-width:1180px){
  .brand__index{display:none}
}
@media (max-width:1100px){
  .nav-toggle{display:inline-flex}
  .nav{
    position:absolute;
    top:100%;
    left:0;
    right:0;
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    margin-left:0;
    padding:10px var(--pad-x) 24px;
    background:linear-gradient(180deg,#0B2B26 0%,#08201B 100%);
    border-bottom:1px solid rgba(47,107,91,.62);
    box-shadow:0 30px 56px -26px rgba(0,0,0,.95);
    max-height:calc(100vh - 68px);
    overflow-y:auto;
    -webkit-overflow-scrolling:touch;
  }
  .site-header[data-open] .nav{
    display:flex;
    animation:navDrop .28s var(--ease);
  }
  @keyframes navDrop{
    from{opacity:0;transform:translateY(-10px)}
    to{opacity:1;transform:none}
  }
  .nav__list{flex-direction:column;align-items:stretch;gap:0}
  .nav__link{
    justify-content:flex-start;
    padding:14px 4px;
    font-size:16px;
    border-bottom:1px solid rgba(47,107,91,.26);
  }
  .nav__link::after{left:4px;right:auto;width:24px;bottom:9px}
  .nav__link:hover{background:transparent}
  .nav__link[aria-current="page"]{background:rgba(232,168,62,.08)}
  .header-actions{
    flex-direction:column;
    align-items:stretch;
    gap:10px;
    margin-top:18px;
    padding-left:0;
    border-left:0;
    padding-top:16px;
    border-top:1px solid rgba(47,107,91,.4);
  }
  .action{padding:13px 16px;font-size:14.5px}
  .footer-top{grid-template-columns:minmax(0,1fr)}
}
@media (max-width:900px){
  .grid--12,.grid--3{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:760px){
  .footer-nav{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-meta{flex-direction:column;align-items:flex-start;gap:8px}
}
@media (max-width:640px){
  .grid--12,.grid--3,.grid--2{grid-template-columns:minmax(0,1fr)}
  .brand__name{font-size:18px}
  .brand__mark{width:34px;height:34px;font-size:16px}
  .nav-toggle__text{display:none}
  .footer-nav{grid-template-columns:minmax(0,1fr);gap:22px}
}

/* ============================================================
   动效可访问性
   ============================================================ */
@media (prefers-reduced-motion:no-preference){
  html{scroll-behavior:smooth}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  [data-reveal]{opacity:1;transform:none}
  .header-progress__bar{transition:none}
  .to-top{transition:none}
}