/* ============================================================
   大神娱乐中心 · 共享样式 /assets/site.css
   霓虹专题研究板：深空紫底 + 珠宝色分区 + 大圆角 + 等宽数字
   ============================================================ */

/* ---------- 1. 设计变量 ---------- */
:root{
  --void:#12051F;
  --void-2:#1B0A2E;
  --neon:#B026FF;
  --blue:#00C2FF;
  --magenta:#FF2E97;
  --lime:#B6FF00;
  --amber:#FFB800;
  --mist:#F5F0FF;
  --teal:#0D2B2B;
  --slate:#2E2442;
  --grey:#8A8FA3;

  --ink:#150625;
  --line:rgba(176,38,255,.34);
  --line-soft:rgba(245,240,255,.12);
  --line-blue:rgba(0,194,255,.38);

  --r-xl:32px;
  --r-lg:24px;
  --r-md:16px;
  --r-pill:999px;

  --header-h:74px;
  --wrap:1200px;
  --gutter:clamp(16px,4vw,40px);
  --shadow-deep:0 22px 60px rgba(8,1,18,.62);
  --shadow-neon:0 0 26px rgba(176,38,255,.42);
  --ease:cubic-bezier(.22,.8,.24,1);

  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-num:"DIN Alternate","SF Mono",ui-monospace,"Roboto Mono",Menlo,Consolas,monospace;
}

/* ---------- 2. Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  min-height:100%;
  color:var(--mist);
  font-family:var(--font-sans);
  font-size:clamp(15px,.55vw + 13.6px,16.5px);
  line-height:1.72;
  letter-spacing:.01em;
  background-color:var(--void);
  background-image:
    radial-gradient(65% 45% at 88% -8%, rgba(176,38,255,.30), transparent 72%),
    radial-gradient(45% 38% at 4% 2%, rgba(0,194,255,.16), transparent 70%),
    radial-gradient(60% 42% at 50% 106%, rgba(13,43,43,.85), transparent 74%);
  background-repeat:no-repeat;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img,svg,canvas,video{display:block;max-width:100%}
a{color:var(--blue);text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{color:var(--lime)}
button{font:inherit;color:inherit;background:none;border:0}
p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding-left:1.15em}
h1,h2,h3,h4,h5{line-height:1.18;letter-spacing:-.015em;font-weight:900;color:var(--mist)}
h1{font-size:clamp(2rem,4.6vw,3.6rem)}
h2{font-size:clamp(1.5rem,2.6vw,2.25rem)}
h3{font-size:clamp(1.15rem,1.6vw,1.4rem)}
:focus-visible{outline:3px solid var(--lime);outline-offset:3px;border-radius:8px}
::selection{background:var(--neon);color:#fff}

/* ---------- 3. 通用排版与工具 ---------- */
.num,.stat-value,.card-meta,.pill--num{font-family:var(--font-num);font-variant-numeric:tabular-nums;letter-spacing:.02em}
.container{width:min(var(--wrap),calc(100% - (var(--gutter) * 2)));margin-inline:auto}
.section{padding-block:clamp(48px,7vw,96px);position:relative}
.section-head{max-width:62ch;margin-bottom:clamp(24px,3vw,40px)}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  margin:0 0 12px;
  font-size:.74rem;font-weight:800;letter-spacing:.34em;text-transform:uppercase;
  color:var(--blue);
}
.eyebrow::before{content:"";width:26px;height:2px;background:linear-gradient(90deg,var(--neon),var(--blue))}
.section-title{margin:0 0 10px;font-size:clamp(1.6rem,3vw,2.5rem)}
.section-lead{margin:0;color:rgba(245,240,255,.74);font-size:clamp(.95rem,1.1vw,1.05rem)}
.text-skew{display:inline-block;transform:skewX(-6deg)}
.section-rule{height:2px;border:0;margin:clamp(28px,4vw,52px) 0;background:linear-gradient(90deg,var(--neon),var(--blue) 48%,transparent)}

/* ---------- 4. 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:11px 22px;
  border-radius:var(--r-pill);
  font-size:.94rem;font-weight:800;letter-spacing:.04em;
  text-decoration:none;cursor:pointer;
  border:1px solid transparent;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background-color .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.btn:hover{transform:translateY(-2px)}
.btn--primary{
  color:#12051F;
  background-image:linear-gradient(120deg,var(--lime),var(--blue) 42%,var(--neon) 100%);
  box-shadow:0 10px 26px rgba(176,38,255,.38);
}
.btn--primary:hover{color:#12051F;box-shadow:0 14px 34px rgba(0,194,255,.45)}
.btn--ghost{
  color:var(--mist);
  border-color:var(--line);
  background-color:rgba(46,36,66,.42);
}
.btn--ghost:hover{color:#fff;border-color:var(--blue);background-color:rgba(0,194,255,.14)}
.btn--quiet{
  color:var(--blue);
  padding-inline:6px;min-height:auto;
  border:0;border-bottom:2px solid rgba(0,194,255,.45);border-radius:0;
}
.btn--quiet:hover{color:var(--lime);border-bottom-color:var(--lime);transform:none}

/* ---------- 5. 胶囊标签 ---------- */
.pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:var(--r-pill);
  font-size:.76rem;font-weight:700;letter-spacing:.08em;
  color:var(--mist);
  background-color:rgba(46,36,66,.7);
  border:1px solid var(--line-soft);
  white-space:nowrap;
}
.pill--lime{color:#0B0216;background-color:var(--lime);border-color:transparent}
.pill--blue{color:#04202B;background-color:var(--blue);border-color:transparent}
.pill--amber{color:#231400;background-color:var(--amber);border-color:transparent}
.pill--magenta{color:#2A0016;background-color:var(--magenta);border-color:transparent}
.tag-list{display:flex;flex-wrap:wrap;gap:8px;list-style:none;padding:0;margin:0}

/* ---------- 6. 卡片与数据块 ---------- */
.card{
  position:relative;
  padding:clamp(18px,2.2vw,26px);
  border-radius:var(--r-lg);
  background-image:linear-gradient(160deg,rgba(46,36,66,.92),rgba(27,10,46,.92));
  border:1px solid var(--line-soft);
  box-shadow:var(--shadow-deep);
  transition:transform .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.card:hover{transform:translateY(-4px);border-color:var(--line);box-shadow:0 26px 64px rgba(8,1,18,.7)}
.card-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:10px}
.card-title{margin:0;font-size:1.08rem;font-weight:800}
.card-text{margin:0;color:rgba(245,240,255,.72);font-size:.94rem}
.card-meta{margin-top:14px;font-size:.8rem;color:var(--amber);letter-spacing:.1em}
.stat{display:flex;flex-direction:column;gap:2px;padding:16px 18px;border-radius:var(--r-md);background-color:rgba(13,43,43,.55);border:1px solid var(--line-soft)}
.stat-value{font-size:clamp(1.5rem,2.6vw,2.1rem);font-weight:900;color:var(--lime);line-height:1.1}
.stat-label{font-size:.78rem;letter-spacing:.16em;color:var(--grey)}

/* ---------- 7. 栅格 ---------- */
.grid{display:grid;gap:clamp(14px,2vw,24px);grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.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:960px){
  .grid-3,.grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:640px){
  .grid-2,.grid-3,.grid-4{grid-template-columns:minmax(0,1fr)}
}

/* ---------- 8. 图片容器基础规则 ---------- */
.img-frame{
  position:relative;display:block;overflow:hidden;isolation:isolate;
  aspect-ratio:16/10;
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  background-image:linear-gradient(135deg,rgba(176,38,255,.24),rgba(0,194,255,.14) 55%,rgba(13,43,43,.7));
}
.img-frame > img{width:100%;height:100%;object-fit:cover}
.img-frame--tablet{aspect-ratio:4/3;border-radius:26px;border-color:var(--line-blue);box-shadow:0 30px 70px rgba(8,1,18,.6)}
.img-frame--tall{aspect-ratio:3/4}
.img-frame--wide{aspect-ratio:21/9}
.img-frame--square{aspect-ratio:1/1}
.img-frame-caption{
  position:absolute;left:12px;bottom:12px;margin:0;
  padding:6px 12px;border-radius:var(--r-pill);
  font-size:.76rem;letter-spacing:.08em;
  color:var(--mist);
  background-color:rgba(18,5,31,.8);
  border:1px solid var(--line);
}
.img-placeholder{
  position:absolute;inset:0;display:grid;place-items:center;
  padding:16px;text-align:center;
  font-size:.78rem;letter-spacing:.2em;color:rgba(245,240,255,.58);
  background-image:repeating-linear-gradient(45deg,rgba(176,38,255,.1) 0 12px,transparent 12px 24px);
}

/* ---------- 9. 面包屑 ---------- */
.breadcrumb{margin:0 0 20px;font-size:.82rem}
.breadcrumb-list{display:flex;flex-wrap:wrap;align-items:center;gap:8px;list-style:none;margin:0;padding:0}
.breadcrumb-list > li:not(:last-child)::after{content:"/";margin-left:8px;color:var(--grey)}
.breadcrumb-link{color:rgba(245,240,255,.72);text-decoration:none}
.breadcrumb-link:hover{color:var(--lime)}
.breadcrumb-current{color:var(--blue);font-weight:700}

/* ---------- 10. 收藏切换 ---------- */
.fav-toggle{
  display:inline-flex;align-items:center;gap:7px;
  min-height:40px;padding:8px 15px;
  border-radius:var(--r-pill);
  font-size:.82rem;font-weight:800;letter-spacing:.06em;
  color:var(--mist);
  border:1px solid var(--line);
  background-color:rgba(46,36,66,.6);
  cursor:pointer;
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.fav-toggle::before{content:"☆";font-size:1rem;line-height:1;color:var(--amber)}
.fav-toggle[aria-pressed="true"]{color:#0B0216;background-color:var(--lime);border-color:transparent}
.fav-toggle[aria-pressed="true"]::before{content:"★";color:#0B0216}

/* ---------- 11. 显现动效 ---------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.is-visible{opacity:1;transform:none}

/* ---------- 12. 跳转链接 ---------- */
.skip-link{
  position:fixed;top:10px;left:50%;
  z-index:200;
  padding:12px 22px;
  border-radius:var(--r-pill);
  font-size:.9rem;font-weight:800;
  color:#12051F;
  background-color:var(--lime);
  text-decoration:none;
  transform:translate(-50%,-160%);
  transition:transform .24s var(--ease);
}
.skip-link:focus{transform:translate(-50%,0);color:#12051F}

/* ---------- 13. 顶部导航 ---------- */
.site-header{
  position:fixed;inset:0 0 auto;
  z-index:90;
  background-color:transparent;
  border-bottom:1px solid transparent;
  transition:background-color .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.site-header[data-scrolled="true"]{
  background-color:rgba(18,5,31,.93);
  border-bottom-color:var(--line);
  box-shadow:0 12px 40px rgba(8,1,18,.55);
}
.header-inner{
  width:min(var(--wrap),calc(100% - (var(--gutter) * 2)));
  margin-inline:auto;
  min-height:var(--header-h);
  display:flex;align-items:center;gap:16px;
}

/* 品牌 */
.brand{
  display:inline-flex;align-items:center;gap:12px;
  flex:0 0 auto;text-decoration:none;color:var(--mist);
}
.brand-mark{
  width:42px;height:42px;flex:0 0 auto;
  display:grid;place-items:center;
  border-radius:15px;
  font-size:1.1rem;font-weight:900;color:#12051F;
  background-image:linear-gradient(135deg,var(--lime),var(--blue) 45%,var(--neon));
  box-shadow:var(--shadow-neon);
  transform:skewX(-7deg);
}
.brand-text{display:flex;flex-direction:column;line-height:1.12}
.brand-name{font-size:1.14rem;font-weight:900;letter-spacing:.02em;transform:skewX(-6deg)}
.brand-sub{font-size:.6rem;font-weight:700;letter-spacing:.3em;color:var(--blue);text-transform:uppercase}

/* 移动菜单按钮 */
.nav-toggle{
  display:none;align-items:center;gap:9px;
  margin-left:auto;
  min-height:44px;padding:10px 16px;
  border-radius:var(--r-pill);
  font-size:.84rem;font-weight:800;letter-spacing:.1em;
  color:var(--mist);
  border:1px solid var(--line);
  background-color:rgba(46,36,66,.55);
  cursor:pointer;
}
.nav-toggle:hover{border-color:var(--blue);color:#fff}
.nav-toggle-bars{position:relative;display:block;width:20px;height:2px;border-radius:2px;background-color:currentColor}
.nav-toggle-bars::before,.nav-toggle-bars::after{
  content:"";position:absolute;left:0;width:20px;height:2px;border-radius:2px;
  background-color:currentColor;
  transition:transform .25s var(--ease),opacity .2s var(--ease);
}
.nav-toggle-bars::before{top:-6px}
.nav-toggle-bars::after{top:6px}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars{background-color:transparent}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::before{transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::after{transform:translateY(-6px) rotate(-45deg)}
.nav-toggle-label{font-size:.82rem}

/* 主导航 */
.primary-nav{display:flex;align-items:center;gap:10px;margin-left:auto}
.nav-list{display:flex;align-items:center;gap:4px;list-style:none;margin:0;padding:0}
.nav-link{
  display:inline-block;
  padding:9px 15px;
  border-radius:var(--r-pill);
  font-size:.93rem;font-weight:700;
  color:rgba(245,240,255,.78);
  text-decoration:none;
  transition:color .2s var(--ease),background-color .2s var(--ease),box-shadow .2s var(--ease);
}
.nav-link:hover{color:#fff;background-color:rgba(176,38,255,.18)}
.nav-link[aria-current="page"]{
  color:#12051F;
  background-image:linear-gradient(120deg,var(--neon),var(--blue));
  box-shadow:0 0 20px rgba(0,194,255,.42);
}
.nav-cta{margin-left:10px;min-height:42px;padding:10px 20px;font-size:.86rem}

/* 阅读进度 */
.scroll-progress{
  position:absolute;left:0;right:0;bottom:0;height:3px;
  background-color:rgba(245,240,255,.08);
  pointer-events:none;
}
.scroll-progress-bar{
  display:block;height:100%;width:0;
  background-image:linear-gradient(90deg,var(--neon),var(--blue) 52%,var(--lime));
  box-shadow:0 0 12px rgba(0,194,255,.7);
  transition:width .12s linear;
}

/* ---------- 14. 右侧设置面板 ---------- */
.panel-toggle{
  position:fixed;right:0;top:44%;
  z-index:95;
  display:flex;flex-direction:column;align-items:center;gap:8px;
  padding:16px 9px;
  border-radius:16px 0 0 16px;
  border:1px solid rgba(0,194,255,.5);
  border-right:0;
  font-size:.76rem;font-weight:900;letter-spacing:.16em;
  color:#0B0216;
  background-image:linear-gradient(200deg,var(--neon),var(--blue));
  box-shadow:-8px 0 28px rgba(176,38,255,.4);
  cursor:pointer;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.panel-toggle:hover{transform:translateX(-3px);box-shadow:-12px 0 34px rgba(0,194,255,.5)}
.panel-toggle-dot{
  width:8px;height:8px;border-radius:50%;
  background-color:var(--lime);
  box-shadow:0 0 10px var(--lime);
}
.panel-toggle-text{writing-mode:vertical-rl;text-orientation:mixed}

.settings-panel{
  position:fixed;top:0;right:0;bottom:0;
  z-index:96;
  width:min(340px,88vw);
  padding:26px 22px 30px;
  display:flex;flex-direction:column;gap:18px;
  overflow-y:auto;
  border-left:1px solid var(--line);
  background-image:linear-gradient(180deg,rgba(27,10,46,.99),rgba(13,43,43,.99));
  box-shadow:-30px 0 80px rgba(8,1,18,.72);
  transform:translateX(106%);
  visibility:hidden;
  transition:transform .34s var(--ease),visibility .34s var(--ease);
}
.settings-panel[data-open="true"]{transform:translateX(0);visibility:visible}
.settings-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:14px;border-bottom:1px solid var(--line-soft)}
.settings-title{margin:0;font-size:.78rem;font-weight:900;letter-spacing:.28em;color:var(--blue)}
.settings-close{
  min-height:36px;padding:6px 14px;
  border-radius:var(--r-pill);
  font-size:.78rem;font-weight:800;
  color:var(--mist);
  border:1px solid var(--line);
  background-color:rgba(46,36,66,.6);
  cursor:pointer;
}
.settings-close:hover{border-color:var(--blue);color:#fff}
.settings-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}
.settings-link{
  display:block;
  padding:13px 16px;
  border-radius:var(--r-md);
  font-size:.94rem;font-weight:700;
  color:var(--mist);
  text-decoration:none;
  border:1px solid var(--line-soft);
  background-color:rgba(46,36,66,.5);
  transition:transform .2s var(--ease),border-color .2s var(--ease),background-color .2s var(--ease),color .2s var(--ease);
}
.settings-link:hover{transform:translateX(-3px);color:#fff;border-color:var(--blue);background-color:rgba(0,194,255,.14)}
.settings-note{margin:auto 0 0;font-size:.8rem;line-height:1.65;color:var(--grey);border-top:1px solid var(--line-soft);padding-top:14px}

/* ---------- 15. 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:clamp(56px,8vw,110px);
  color:var(--mist);
  background-image:linear-gradient(180deg,var(--teal),#081A1A 62%,var(--void));
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background-image:linear-gradient(90deg,var(--neon),var(--blue) 46%,var(--lime));
}
.footer-inner{
  width:min(var(--wrap),calc(100% - (var(--gutter) * 2)));
  margin-inline:auto;
  padding-block:clamp(40px,6vw,70px);
  display:grid;
  grid-template-columns:1.5fr .8fr .8fr 1.2fr;
  gap:clamp(22px,3vw,40px);
}
.footer-brand{display:flex;flex-direction:column;gap:16px}
.footer-facts{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}
.footer-fact{
  display:flex;align-items:center;gap:9px;
  font-size:.84rem;color:rgba(245,240,255,.76);
}
.footer-fact::before{content:"";width:6px;height:6px;border-radius:50%;background-color:var(--lime);box-shadow:0 0 8px var(--lime);flex:0 0 auto}
.footer-col{display:flex;flex-direction:column;gap:12px}
.footer-col-title{margin:0;font-size:.76rem;font-weight:900;letter-spacing:.26em;color:var(--blue);text-transform:uppercase}
.footer-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:9px}
.footer-link{
  display:inline-block;
  font-size:.9rem;font-weight:600;
  color:rgba(245,240,255,.78);
  text-decoration:none;
  transition:color .2s var(--ease),transform .2s var(--ease);
}
.footer-link:hover{color:var(--lime);transform:translateX(3px)}
.footer-contact{display:flex;flex-direction:column;gap:10px}
.contact-row{display:flex;gap:10px;font-size:.86rem;line-height:1.6}
.contact-key{
  flex:0 0 44px;
  font-size:.74rem;font-weight:800;letter-spacing:.12em;
  color:var(--amber);
  padding-top:2px;
}
.contact-val{color:rgba(245,240,255,.86);word-break:break-word}
.footer-note{
  margin-top:6px;padding-top:10px;
  border-top:1px dashed rgba(245,240,255,.16);
  font-size:.78rem;line-height:1.65;color:var(--grey);
}
.footer-bottom{
  width:min(var(--wrap),calc(100% - (var(--gutter) * 2)));
  margin-inline:auto;
  padding-block:18px 26px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;
  border-top:1px solid rgba(176,38,255,.4);
  font-size:.8rem;color:var(--grey);
}
.footer-copy{margin:0}
.footer-legal{
  margin:0;color:var(--mist);
  font-family:var(--font-num);letter-spacing:.06em;
  padding:4px 12px;border-radius:var(--r-pill);
  border:1px solid var(--line-soft);
  background-color:rgba(46,36,66,.5);
}

/* ---------- 16. 响应式 ---------- */
@media (max-width:1080px){
  .footer-inner{grid-template-columns:1.4fr 1fr 1fr;gap:26px}
  .footer-contact{grid-column:1 / -1}
}
@media (max-width:960px){
  :root{--header-h:66px}
  .nav-toggle{display:inline-flex}
  .primary-nav{
    position:fixed;left:12px;right:12px;
    top:calc(var(--header-h) + 8px);
    display:none;
    flex-direction:column;align-items:stretch;gap:12px;
    margin-left:0;
    padding:18px;
    border-radius:var(--r-lg);
    border:1px solid var(--line);
    background-image:linear-gradient(180deg,rgba(27,10,46,.99),rgba(18,5,31,.99));
    box-shadow:var(--shadow-deep);
    max-height:calc(100vh - var(--header-h) - 28px);
    overflow-y:auto;
  }
  .primary-nav[data-open="true"]{display:flex}
  .nav-list{flex-direction:column;align-items:stretch;gap:6px}
  .nav-link{padding:13px 16px;border-radius:var(--r-md);font-size:1rem;border:1px solid transparent}
  .nav-link[aria-current="page"]{box-shadow:none}
  .nav-cta{margin-left:0;width:100%;min-height:48px}
  .panel-toggle{top:auto;bottom:22px;padding:14px 8px}
  .brand-name{font-size:1.05rem}
}
@media (max-width:640px){
  .header-inner{gap:10px}
  .brand-sub{display:none}
  .nav-toggle-label{display:none}
  .footer-inner{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .section{padding-block:clamp(36px,8vw,60px)}
}

/* ---------- 17. 减少动效 ---------- */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .reveal{opacity:1;transform:none}
  .btn:hover,.card:hover,.settings-link:hover,.footer-link:hover,.panel-toggle:hover{transform:none}
}