/* ============================================================
   娱乐神殿 · 共享样式表 /assets/site.css
   结构：变量 → 重置 → 排版 → 无障碍 → 布局 → 按钮
        → 悬浮胶囊头部 → 殿堂式页脚 → 通用组件 → 图片容器 → 动效
   ============================================================ */

/* ---------- 1. 设计变量 ---------- */
:root{
  --deep-space:#070B18;
  --abyss:#0E1526;
  --abyss-deep:#05080F;
  --glass:rgba(27,36,56,.72);
  --glass-high:rgba(20,28,46,.94);
  --gold:#E3B25A;
  --gold-soft:#F2D9A0;
  --cyan:#35D6E0;
  --cyan-deep:#0B7C8C;
  --cyan-light:#12A8B8;
  --paper:#F7F9FC;
  --formal-blue:#10275C;
  --text:#E6ECF5;
  --muted:#A9B4C6;
  --muted-dim:rgba(169,180,198,.66);
  --line:rgba(169,180,198,.18);
  --line-strong:rgba(169,180,198,.36);
  --amber:#F0C36B;

  --font-head:"Noto Serif SC","思源宋体","Songti SC",Georgia,"Times New Roman",serif;
  --font-body:"PingFang SC","Noto Sans SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:"JetBrains Mono","SFMono-Regular",Menlo,Consolas,"Courier New",monospace;

  --shell-max:1240px;
  --gutter:clamp(1rem,3vw,2.5rem);
  --radius-lg:20px;
  --radius-md:12px;
  --radius-sm:8px;
  --shadow-glass:0 18px 46px rgba(2,6,18,.62);
  --ease:cubic-bezier(.22,.7,.3,1);
}

/* ---------- 2. 重置与页面底色 ---------- */
*,*::before,*::after{box-sizing:border-box}
html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
  scroll-padding-top:7rem;
}
body{
  margin:0;
  min-height:100vh;
  background:
    radial-gradient(1180px 680px at 10% -12%,rgba(53,214,224,.11),transparent 62%),
    radial-gradient(920px 620px at 94% -4%,rgba(227,178,90,.09),transparent 64%),
    radial-gradient(800px 900px at 50% 120%,rgba(16,39,92,.35),transparent 70%),
    var(--deep-space);
  color:var(--text);
  font-family:var(--font-body);
  font-size:clamp(16px,.5vw + 15.2px,17.5px);
  font-weight:400;
  line-height:1.75;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  text-rendering:optimizeLegibility;
}
img,svg,video{display:block;max-width:100%;height:auto}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit;background:none;border:0}
table{border-collapse:collapse;width:100%}
hr{border:0}

/* ---------- 3. 中文排版与链接 ---------- */
h1,h2,h3,h4,h5{
  margin:0 0 .6em;
  font-family:var(--font-head);
  font-weight:800;
  line-height:1.18;
  letter-spacing:-.012em;
  color:#fff;
}
h1{font-size:clamp(2.5rem,6.4vw,4.5rem)}
h2{font-size:clamp(1.8rem,3.6vw,2.7rem)}
h3{font-size:clamp(1.25rem,2vw,1.65rem)}
h4{font-size:clamp(1.05rem,1.4vw,1.2rem);font-weight:700}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
strong{color:#fff;font-weight:600}
code,kbd,samp,pre{font-family:var(--font-mono);font-size:.85em}
a{color:var(--cyan);text-decoration:none;transition:color .16s var(--ease),border-color .16s var(--ease),background-color .16s var(--ease)}
a:hover{color:var(--gold-soft)}
::selection{background:rgba(53,214,224,.3);color:#fff}

/* ---------- 4. 无障碍与焦点 ---------- */
:focus{outline:none}
:focus-visible{
  outline:2px solid var(--cyan);
  outline-offset:3px;
  border-radius:4px;
}
.skip-link{
  position:fixed;
  top:.7rem;
  left:.9rem;
  z-index:400;
  display:inline-block;
  padding:.62rem 1.1rem;
  border-radius:999px;
  background:var(--gold);
  color:#14100a;
  font-family:var(--font-mono);
  font-size:.76rem;
  font-weight:600;
  letter-spacing:.1em;
  box-shadow:var(--shadow-glass);
  transform:translateY(-220%);
  transition:transform .2s var(--ease);
}
.skip-link:focus-visible{transform:translateY(0);color:#14100a}

/* ---------- 5. 布局基础 ---------- */
.container{
  width:100%;
  max-width:var(--shell-max);
  margin-inline:auto;
  padding-inline:var(--gutter);
}
.section{padding-block:clamp(2.4rem,5.5vw,4.6rem)}
.grid-12{
  display:grid;
  grid-template-columns:repeat(12,minmax(0,1fr));
  gap:clamp(1rem,2.2vw,1.8rem);
}
.rule{
  height:1px;
  margin:clamp(1.6rem,3vw,2.4rem) 0;
  background:linear-gradient(90deg,var(--line-strong),var(--line) 45%,transparent);
}

/* ---------- 6. 通用按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.45rem;
  padding:.66rem 1.15rem;
  border:1px solid transparent;
  border-radius:999px;
  font-family:var(--font-mono);
  font-size:.78rem;
  font-weight:600;
  letter-spacing:.08em;
  line-height:1.3;
  white-space:nowrap;
  cursor:pointer;
  transition:background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease),transform .18s var(--ease);
}
.btn-sm{padding:.5rem .9rem;font-size:.74rem}
.btn-gold{background:var(--gold);color:#14100a;border-color:transparent}
.btn-gold:hover,.btn-gold:focus-visible{background:var(--gold-soft);color:#14100a;box-shadow:0 8px 24px rgba(227,178,90,.28)}
.btn-cyan{background:var(--cyan);color:#04131a;border-color:transparent}
.btn-cyan:hover,.btn-cyan:focus-visible{background:#6ae8f0;color:#04131a;box-shadow:0 8px 24px rgba(53,214,224,.26)}
.btn-quiet{background:transparent;color:var(--text);border-color:var(--line-strong)}
.btn-quiet:hover,.btn-quiet:focus-visible{border-color:var(--cyan);color:var(--cyan);background:rgba(53,214,224,.08)}

/* ---------- 7. 悬浮胶囊头部 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:200;
  padding:.7rem clamp(.75rem,2vw,1.6rem) 0;
  pointer-events:none;
}
.header-shell{
  position:relative;
  pointer-events:auto;
  display:flex;
  align-items:center;
  gap:clamp(.6rem,1.6vw,1.5rem);
  max-width:var(--shell-max);
  margin-inline:auto;
  padding:.5rem .6rem .5rem .9rem;
  border:1px solid var(--line);
  border-radius:999px;
  background:var(--glass);
  -webkit-backdrop-filter:blur(12px) saturate(140%);
  backdrop-filter:blur(12px) saturate(140%);
  box-shadow:var(--shadow-glass);
  transition:background-color .26s var(--ease),border-color .26s var(--ease),box-shadow .26s var(--ease),padding .26s var(--ease);
}
.site-header[data-scrolled] .header-shell{
  background:var(--glass-high);
  border-color:rgba(169,180,198,.28);
  box-shadow:0 24px 54px rgba(2,6,18,.72),0 0 0 1px rgba(53,214,224,.08);
  padding-block:.4rem;
}

/* 品牌轨道 */
.brand-rail{
  display:flex;
  align-items:center;
  gap:.7rem;
  flex:0 0 auto;
  padding:.34rem .9rem .34rem .3rem;
  border-right:1px solid var(--line);
  color:var(--text);
}
.brand-rail:hover{color:var(--text)}
.brand-glyph{
  position:relative;
  flex:0 0 auto;
  width:28px;
  height:28px;
  border-radius:7px;
  background:
    linear-gradient(148deg,var(--gold) 0 46%,transparent 46% 100%),
    linear-gradient(328deg,var(--cyan) 0 44%,var(--abyss) 44% 100%);
  box-shadow:inset 0 0 0 1px var(--line),0 0 20px rgba(53,214,224,.3);
}
.brand-glyph::after{
  content:"";
  position:absolute;
  inset:9px;
  border:1px solid rgba(7,11,24,.65);
  border-radius:2px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.16;min-width:0}
.brand-name{
  font-family:var(--font-head);
  font-weight:800;
  font-size:1.06rem;
  letter-spacing:.02em;
  color:#fff;
}
.brand-sub{
  font-family:var(--font-mono);
  font-size:.6rem;
  letter-spacing:.14em;
  color:var(--muted);
  white-space:nowrap;
}

/* 栏目胶囊 */
.nav-capsule{
  display:flex;
  align-items:center;
  gap:.5rem;
  margin-left:auto;
  min-width:0;
}
.nav-list{display:flex;align-items:center;gap:.08rem}
.nav-link{
  display:inline-block;
  padding:.5rem .7rem;
  border:1px solid transparent;
  border-radius:999px;
  font-size:.9rem;
  letter-spacing:.02em;
  color:var(--muted);
  transition:color .16s var(--ease),background-color .16s var(--ease),border-color .16s var(--ease);
}
.nav-link:hover{color:#fff;background:rgba(169,180,198,.1)}
.nav-link[aria-current="page"]{
  color:#14100a;
  background:var(--gold);
  border-color:rgba(242,217,160,.6);
  font-weight:600;
  box-shadow:0 6px 18px rgba(227,178,90,.26);
}
.nav-link[aria-current="page"]:hover{color:#14100a;background:var(--gold-soft)}

.nav-actions{
  display:flex;
  align-items:center;
  gap:.45rem;
  padding-left:.6rem;
  border-left:1px solid var(--line);
}

/* 移动端开关 */
.nav-toggle{
  display:none;
  align-items:center;
  gap:.55rem;
  margin-left:auto;
  padding:.5rem .85rem;
  border:1px solid var(--line-strong);
  border-radius:999px;
  background:rgba(7,11,24,.4);
  color:var(--text);
  cursor:pointer;
  transition:border-color .18s var(--ease),color .18s var(--ease);
}
.nav-toggle:hover{border-color:var(--cyan);color:var(--cyan)}
.nav-toggle-icon{display:grid;gap:4px;width:16px}
.nav-toggle-bar{
  display:block;
  width:16px;
  height:2px;
  border-radius:2px;
  background:var(--gold);
  transition:transform .22s var(--ease),opacity .22s var(--ease);
}
.nav-toggle-text{
  font-family:var(--font-mono);
  font-size:.72rem;
  letter-spacing:.14em;
}
.site-header[data-open] .nav-toggle-bar:nth-child(1){transform:translateY(6px) rotate(45deg)}
.site-header[data-open] .nav-toggle-bar:nth-child(2){opacity:0}
.site-header[data-open] .nav-toggle-bar:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ---------- 8. 殿堂式页脚 ---------- */
.site-footer{
  margin-top:clamp(3.5rem,8vw,7rem);
  padding:clamp(2.6rem,5.5vw,4.6rem) 0 1.6rem;
  border-top:1px solid var(--line);
  background:
    radial-gradient(900px 420px at 8% 0%,rgba(53,214,224,.08),transparent 62%),
    radial-gradient(760px 380px at 92% 8%,rgba(227,178,90,.07),transparent 66%),
    linear-gradient(180deg,rgba(14,21,38,.35),rgba(14,21,38,.94) 32%,var(--abyss-deep));
}
.footer-shell{
  display:grid;
  gap:clamp(1.8rem,4vw,3rem);
  width:100%;
  max-width:var(--shell-max);
  margin-inline:auto;
  padding-inline:var(--gutter);
}
.footer-brand{display:grid;gap:.7rem;align-content:start}
.footer-brand-name{
  margin:0;
  font-family:var(--font-head);
  font-weight:800;
  font-size:clamp(1.3rem,2vw,1.6rem);
  color:#fff;
}
.footer-brand-note{
  margin:0;
  max-width:36ch;
  font-size:.86rem;
  color:var(--muted);
}
.footer-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(150px,1fr));
  gap:clamp(1.4rem,3vw,2.4rem);
}
.footer-col{display:grid;gap:.85rem;align-content:start}
.footer-col-title{
  margin:0;
  font-family:var(--font-mono);
  font-size:.72rem;
  font-weight:600;
  letter-spacing:.16em;
  color:var(--gold);
}
.footer-list{display:grid;gap:.5rem}
.footer-link{
  display:inline-block;
  padding-bottom:2px;
  border-bottom:1px solid transparent;
  font-size:.92rem;
  color:var(--muted);
}
.footer-link:hover{color:#fff;border-bottom-color:var(--gold)}

.footer-access{
  display:grid;
  gap:.7rem;
  padding:clamp(1.1rem,2.4vw,1.6rem);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  background:
    linear-gradient(118deg,rgba(11,124,140,.24),rgba(53,214,224,.08) 46%,rgba(227,178,90,.12));
  box-shadow:inset 0 0 60px rgba(53,214,224,.08);
}
.footer-access-title{
  margin:0;
  font-size:1.08rem;
  font-weight:800;
}
.footer-access-note{
  margin:0;
  max-width:64ch;
  font-size:.86rem;
  color:var(--muted);
}
.footer-access .btn{justify-self:start}

.footer-legal{
  display:grid;
  gap:.7rem;
  padding-top:1.5rem;
  border-top:1px solid var(--line);
}
.footer-meta{display:flex;flex-wrap:wrap;gap:.4rem 1.4rem}
.footer-meta a{
  font-family:var(--font-mono);
  font-size:.74rem;
  letter-spacing:.1em;
  color:var(--muted);
}
.footer-meta a:hover{color:var(--cyan)}
.footer-contact{
  display:flex;
  flex-wrap:wrap;
  gap:.3rem 1.5rem;
  margin:0;
  font-family:var(--font-mono);
  font-size:.76rem;
  letter-spacing:.05em;
  color:var(--muted);
}
.footer-address{margin:0;font-size:.82rem;color:var(--muted)}
.footer-icp{
  margin:0;
  font-family:var(--font-mono);
  font-size:.72rem;
  letter-spacing:.08em;
  color:var(--muted-dim);
}

/* ---------- 9. 通用内容组件 ---------- */
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:.6rem;
  margin-bottom:1rem;
  font-family:var(--font-mono);
  font-size:.72rem;
  letter-spacing:.2em;
  color:var(--cyan);
}
.eyebrow::before{
  content:"";
  width:28px;
  height:1px;
  background:linear-gradient(90deg,var(--cyan),transparent);
}
.display-title{
  margin:0 0 .5em;
  font-size:clamp(2.5rem,6.4vw,4.5rem);
  text-shadow:0 18px 50px rgba(2,6,18,.75);
}
.section-title{margin:0 0 .5em;font-size:clamp(1.8rem,3.6vw,2.7rem)}
.lede{
  max-width:62ch;
  font-size:clamp(1rem,1.3vw,1.12rem);
  color:var(--muted);
}
.annotation{
  font-size:.78rem;
  line-height:1.7;
  letter-spacing:.05em;
  color:var(--muted);
}

.breadcrumb{padding-block:.9rem}
.breadcrumb-list{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:.45rem;
  font-family:var(--font-mono);
  font-size:.74rem;
  letter-spacing:.08em;
  color:var(--muted);
}
.breadcrumb-list li{display:flex;align-items:center;gap:.45rem}
.breadcrumb-list li::after{content:"/";color:rgba(169,180,198,.4)}
.breadcrumb-list li:last-child::after{content:""}
.breadcrumb-list a{color:var(--muted)}
.breadcrumb-list a:hover{color:var(--cyan)}
.breadcrumb-list [aria-current="page"]{color:var(--text)}

.card,.card-glass{
  padding:clamp(1.1rem,2.4vw,1.7rem);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  background:var(--abyss);
}
.card-glass{
  background:var(--glass);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  box-shadow:var(--shadow-glass);
}
.card-title{margin:0 0 .5rem;font-size:1.22rem}
.card-meta{
  font-family:var(--font-mono);
  font-size:.72rem;
  letter-spacing:.12em;
  color:var(--muted);
}
.tag-mono{
  display:inline-block;
  padding:.24rem .6rem;
  border:1px solid var(--line-strong);
  border-radius:999px;
  font-family:var(--font-mono);
  font-size:.68rem;
  letter-spacing:.12em;
  color:var(--muted);
}
.tag-mono--cyan{color:var(--cyan);border-color:rgba(53,214,224,.45);background:rgba(53,214,224,.07)}
.tag-mono--gold{color:var(--gold);border-color:rgba(227,178,90,.45);background:rgba(227,178,90,.07)}

/* ---------- 10. 图片容器（页面阶段放置占位） ---------- */
.img-frame{
  position:relative;
  display:block;
  overflow:hidden;
  width:100%;
  aspect-ratio:16 / 10;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  background:var(--abyss);
}
.img-frame img{
  width:100%;
  height:100%;
  object-fit:cover;
  filter:saturate(.92) contrast(1.06);
}
.img-frame::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background:repeating-linear-gradient(180deg,rgba(230,236,245,.055) 0 1px,transparent 1px 4px);
  opacity:.7;
}
.img-frame--cool{
  background:linear-gradient(142deg,var(--cyan-deep),rgba(11,124,140,.22) 38%,var(--abyss) 72%);
  box-shadow:inset 0 0 70px rgba(53,214,224,.2);
}
.img-frame--warm{
  background:linear-gradient(142deg,rgba(227,178,90,.3),rgba(227,178,90,.06) 40%,var(--abyss) 74%);
  box-shadow:inset 0 0 70px rgba(227,178,90,.16);
}
.img-frame--formal{background:linear-gradient(90deg,var(--paper) 0 50%,var(--formal-blue) 50% 100%)}
.img-frame--tall{aspect-ratio:3 / 4}
.img-frame--wide{aspect-ratio:21 / 9}

/* ---------- 11. 动效 ---------- */
.reveal-init{opacity:0;transform:translateY(16px)}
.reveal-init.is-visible{
  opacity:1;
  transform:none;
  transition:opacity .55s var(--ease),transform .55s var(--ease);
}

/* ---------- 12. 响应式 ---------- */
@media (max-width:1180px){
  .nav-link{padding:.46rem .56rem;font-size:.86rem}
  .nav-actions .btn{padding:.46rem .72rem;font-size:.7rem}
  .brand-sub{letter-spacing:.1em}
}

@media (max-width:1080px){
  .brand-rail{border-right:0;padding-right:.4rem}
  .nav-toggle{display:inline-flex}
  .nav-capsule{
    position:absolute;
    top:calc(100% + .55rem);
    left:0;
    right:0;
    z-index:210;
    flex-direction:column;
    align-items:stretch;
    gap:.6rem;
    max-height:min(72vh,32rem);
    overflow-y:auto;
    padding:1rem;
    border:1px solid var(--line);
    border-radius:var(--radius-lg);
    background:var(--glass-high);
    -webkit-backdrop-filter:blur(16px) saturate(140%);
    backdrop-filter:blur(16px) saturate(140%);
    box-shadow:var(--shadow-glass);
    opacity:0;
    visibility:hidden;
    transform:translateY(-10px);
    transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s var(--ease);
  }
  .site-header[data-open] .nav-capsule{
    opacity:1;
    visibility:visible;
    transform:translateY(0);
  }
  .nav-list{
    flex-direction:column;
    align-items:stretch;
    gap:.15rem;
    padding-bottom:.7rem;
    border-bottom:1px solid var(--line);
  }
  .nav-link{
    display:block;
    padding:.72rem .85rem;
    border-radius:var(--radius-sm);
    font-size:.98rem;
  }
  .nav-actions{
    flex-direction:column;
    align-items:stretch;
    gap:.5rem;
    padding-left:0;
    border-left:0;
  }
  .nav-actions .btn{width:100%;padding:.7rem 1rem;font-size:.76rem}

  .footer-shell{grid-template-columns:1fr}
}

@media (min-width:1024px){
  .footer-shell{
    grid-template-columns:minmax(230px,1fr) minmax(0,2.5fr);
    grid-template-areas:
      "brand grid"
      "access access"
      "legal legal";
    align-items:start;
  }
  .footer-brand{grid-area:brand}
  .footer-grid{grid-area:grid}
  .footer-access{
    grid-area:access;
    grid-template-columns:minmax(0,1fr) auto;
    align-items:center;
    column-gap:2.5rem;
  }
  .footer-access-title{grid-column:1;grid-row:1}
  .footer-access-note{grid-column:1;grid-row:2}
  .footer-access .btn{grid-column:2;grid-row:1 / span 2;justify-self:end}
  .footer-legal{grid-area:legal}
}

@media (max-width:720px){
  .brand-sub{display:none}
  .brand-name{font-size:1rem}
  .grid-12{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-access .btn{justify-self:stretch;width:100%}
}
@media (max-width:600px){
  .skip-link{left:.6rem;right:.6rem;text-align:center}
  .header-shell{padding-left:.8rem}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  .reveal-init{opacity:1;transform:none}
  .skip-link{transition:none}
}