/* =========================================================
   168真人娱 · 共享样式表  /assets/site.css
   框架式导航 · 夜间数据仪表盘
   ========================================================= */

/* ---------- 1. Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{margin:0;padding:0;scroll-behavior:smooth;scroll-padding-top:120px;color-scheme:dark;-webkit-text-size-adjust:100%}
body,h1,h2,h3,h4,h5,h6,p,ul,ol,li,figure,blockquote,dl,dd{margin:0}
ul,ol{padding:0}
img,svg,video{max-width:100%;height:auto;display:block}
button{font:inherit;color:inherit;background:none;border:0}
a{background-color:transparent;text-decoration:none}
table{border-collapse:collapse;width:100%}
[hidden]{display:none !important}

/* ---------- 2. 设计变量 ---------- */
:root{
  --abyss:#061826;
  --midnight:#0B2438;
  --panel:#123A52;
  --line:#1F4A5F;
  --mist:#E7F5F2;
  --silver:#9DB6C6;
  --neon:#36F1CD;
  --electric:#22D3EE;
  --coral:#FF7A59;
  --violet:#A78BFA;

  --bg:var(--abyss);
  --surface:var(--midnight);
  --surface-2:var(--panel);
  --text:var(--mist);
  --text-muted:var(--silver);
  --text-dim:#4A7D95;
  --border:var(--line);
  --accent:var(--neon);
  --accent-2:var(--electric);
  --status:var(--coral);

  --font-sans:ui-sans-serif,'Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  --font-mono:ui-monospace,'JetBrains Mono','SFMono-Regular',Menlo,Consolas,monospace;

  --step-h1:clamp(30px,5vw,48px);
  --step-h2:clamp(24px,3.4vw,32px);
  --step-h3:clamp(19px,2.2vw,24px);

  --shell:1280px;
  --gutter:24px;
  --radius:6px;
  --radius-lg:10px;
  --shadow-1:0 1px 0 rgba(231,245,242,.04),0 10px 26px -20px rgba(0,0,0,.9);
  --shadow-2:0 24px 52px -30px rgba(0,0,0,.95);
  --glow-neon:0 0 0 1px rgba(54,241,205,.35),0 0 22px -6px rgba(54,241,205,.5);
  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ---------- 3. 基础排版 ---------- */
body{
  min-height:100vh;
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16px;
  font-weight:400;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4{font-weight:700;letter-spacing:-.01em;color:var(--mist);line-height:1.25}
h1{font-size:var(--step-h1);line-height:1.18;font-weight:800}
h2{font-size:var(--step-h2)}
h3{font-size:var(--step-h3)}
h4{font-size:17px}
p{line-height:1.8;color:var(--text-muted)}
strong,b{color:var(--mist);font-weight:700}
small{font-size:13px;line-height:1.7}
a{color:var(--accent-2);transition:color .2s var(--ease)}
a:hover{color:var(--neon)}
hr{border:0;border-top:1px solid var(--border);margin:28px 0}

:focus-visible{outline:2px solid var(--neon);outline-offset:2px;border-radius:3px}
::selection{background:rgba(54,241,205,.28);color:#eafffb}

.skip-link{
  position:absolute;left:16px;top:-72px;z-index:220;
  padding:10px 18px;border-radius:4px;
  background:var(--neon);color:#04141f;
  font-family:var(--font-mono);font-size:13px;font-weight:500;letter-spacing:.06em;
  transition:top .18s var(--ease);
}
.skip-link:focus{top:12px;color:#04141f}

/* 桌面端页面两侧的霓虹边框线（框架式导航的延伸） */
@media (min-width:1200px){
  body::before,body::after{
    content:"";position:fixed;top:0;bottom:0;width:1px;z-index:150;
    pointer-events:none;
    background:linear-gradient(180deg,rgba(54,241,205,.55),rgba(31,74,95,.28) 45%,transparent);
  }
  body::before{left:0}
  body::after{right:0}
}

/* ---------- 4. 布局工具 ---------- */
.shell{width:min(var(--shell),100%);margin-inline:auto;padding-inline:var(--gutter)}
.section{padding-block:clamp(44px,6vw,84px)}
.section--tight{padding-block:clamp(26px,3.6vw,46px)}
.section-head{
  display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;
  gap:14px 24px;padding-bottom:14px;margin-bottom:30px;
  border-bottom:1px solid var(--border);
}
.eyebrow{
  margin:0 0 10px;
  font-family:var(--font-mono);font-size:12px;font-weight:500;
  letter-spacing:.16em;text-transform:uppercase;color:var(--accent-2);
}
.lede{font-size:clamp(16px,1.35vw,18px);line-height:1.85;color:var(--text-muted);max-width:62ch}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:.02em}
.meta{margin:0;font-family:var(--font-mono);font-size:12px;letter-spacing:.05em;color:var(--text-muted)}
.stamp{font-family:var(--font-mono);font-size:12px;letter-spacing:.05em;color:var(--status)}

.grid{display:grid;gap:24px}
.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))}
.grid--split{grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);align-items:start}

@media (max-width:960px){
  .grid--3,.grid--4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid--split{grid-template-columns:minmax(0,1fr)}
}
@media (max-width:620px){
  .grid--2,.grid--3,.grid--4{grid-template-columns:minmax(0,1fr)}
  :root{--gutter:18px}
}

/* ---------- 5. 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 18px;border:1px solid var(--border);border-radius:4px;
  background:var(--midnight);color:var(--mist);
  font-family:var(--font-sans);font-size:15px;font-weight:700;line-height:1.2;
  cursor:pointer;text-decoration:none;
  transition:color .2s var(--ease),border-color .2s var(--ease),background-color .2s var(--ease),box-shadow .25s var(--ease),transform .2s var(--ease);
}
.btn:hover{color:var(--neon);border-color:rgba(54,241,205,.45);transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn--accent{
  background:linear-gradient(180deg,rgba(54,241,205,.16),rgba(54,241,205,.05));
  border-color:rgba(54,241,205,.42);color:var(--neon);
}
.btn--accent:hover{color:#eafffb;box-shadow:var(--glow-neon)}
.btn--ghost{background:transparent;color:var(--text-muted)}
.btn--ghost:hover{background:rgba(18,58,82,.6);color:var(--mist)}
.btn--quiet{
  padding:8px 12px;background:transparent;border-color:transparent;
  color:var(--accent-2);font-family:var(--font-mono);font-size:13px;font-weight:500;letter-spacing:.06em;
}
.btn--quiet:hover{border-color:rgba(34,211,238,.35);color:var(--neon)}

/* ---------- 6. 面包屑 ---------- */
.breadcrumb{
  display:flex;flex-wrap:wrap;gap:8px;list-style:none;margin:0 0 18px;padding:0;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.05em;color:var(--text-muted);
}
.breadcrumb li{display:inline-flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"/";color:var(--line)}
.breadcrumb a{color:var(--text-muted)}
.breadcrumb a:hover{color:var(--neon)}
.breadcrumb [aria-current="page"]{color:var(--mist)}

/* ---------- 7. 卡片 / 面板 / 标签 ---------- */
.card{
  position:relative;
  padding:22px;border:1px solid var(--border);border-radius:var(--radius-lg);
  background:var(--surface);box-shadow:var(--shadow-1);
  transition:transform .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.card:hover{transform:translateY(-3px);border-color:rgba(54,241,205,.34);box-shadow:var(--shadow-2),0 0 0 1px rgba(54,241,205,.1)}
.card__head{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:12px}
.card__title{margin:0;font-size:19px;font-weight:700;color:var(--mist)}
.card__meta{font-family:var(--font-mono);font-size:12px;letter-spacing:.05em;color:var(--status);white-space:nowrap}
.card__body{margin:0;font-size:15px;line-height:1.8;color:var(--text-muted)}
.card--panel{background:linear-gradient(180deg,var(--surface-2),#0D2C3F 72%)}
.card--rail{border-left:2px solid var(--accent)}

.panel{
  padding:20px;border:1px solid var(--border);border-radius:var(--radius-lg);
  background:linear-gradient(180deg,rgba(18,58,82,.9),rgba(11,36,56,.9));
  box-shadow:var(--shadow-1);
}
.panel__title{margin:0 0 10px;font-size:15px;font-weight:700;letter-spacing:.02em;color:var(--mist)}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 10px;border:1px solid var(--border);border-radius:999px;
  background:rgba(18,58,82,.5);color:var(--text-muted);
  font-family:var(--font-mono);font-size:11px;font-weight:500;letter-spacing:.08em;line-height:1.6;
}
.tag--neon{color:var(--neon);border-color:rgba(54,241,205,.36);background:rgba(54,241,205,.09)}
.tag--coral{color:var(--coral);border-color:rgba(255,122,89,.36);background:rgba(255,122,89,.09)}
.tag--violet{color:var(--violet);border-color:rgba(167,139,250,.36);background:rgba(167,139,250,.09)}
.tag--blue{color:var(--electric);border-color:rgba(34,211,238,.36);background:rgba(34,211,238,.09)}

/* ---------- 8. 图像容器（页面阶段放图/SVG 用） ---------- */
.media-frame{
  position:relative;display:block;overflow:hidden;
  border:1px solid var(--border);border-radius:var(--radius-lg);
  background:
    linear-gradient(160deg,rgba(34,211,238,.08),rgba(11,36,56,.92) 46%,rgba(6,24,38,1)),
    var(--midnight);
  box-shadow:var(--shadow-1);
}
.media-frame::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(120% 80% at 10% 0%,rgba(54,241,205,.14),transparent 62%);
}
.media-frame>img,.media-frame>picture>img,.media-frame>svg{width:100%;height:100%;object-fit:cover}
.media-frame--16x9{aspect-ratio:16/9}
.media-frame--4x3{aspect-ratio:4/3}
.media-frame--1x1{aspect-ratio:1/1}
.media-frame--21x9{aspect-ratio:21/9}
.media-frame__caption{
  position:absolute;left:14px;bottom:12px;z-index:2;
  padding:3px 10px;border:1px solid rgba(31,74,95,.9);border-radius:999px;
  background:rgba(6,24,38,.82);color:var(--text-muted);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;
}

/* ---------- 9. 更新时间轴 ---------- */
.timeline{list-style:none;margin:0;padding:0 0 0 20px;border-left:1px solid var(--border)}
.timeline__item{position:relative;padding:0 0 24px 18px}
.timeline__item:last-child{padding-bottom:4px}
.timeline__item::before{
  content:"";position:absolute;left:-25px;top:8px;width:9px;height:9px;border-radius:50%;
  background:var(--abyss);border:1px solid var(--electric);
  box-shadow:0 0 0 3px rgba(34,211,238,.12);
}
.timeline__item[data-state="new"]::before{border-color:var(--status);box-shadow:0 0 0 3px rgba(255,122,89,.16)}
.timeline__time{display:block;font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;color:var(--status)}
.timeline__title{margin:2px 0 4px;font-size:16px;font-weight:700;color:var(--mist)}
.timeline__text{margin:0;font-size:14px;line-height:1.8;color:var(--text-muted)}

/* ---------- 10. 标签筛选 / 显现 / 返回顶部 ---------- */
.filter-bar{display:flex;flex-wrap:wrap;gap:8px}
.filter-chip{
  padding:7px 14px;border:1px solid var(--border);border-radius:999px;
  background:rgba(11,36,56,.85);color:var(--text-muted);
  font-family:var(--font-mono);font-size:12px;font-weight:500;letter-spacing:.08em;
  cursor:pointer;transition:color .2s var(--ease),border-color .2s var(--ease),background-color .2s var(--ease);
}
.filter-chip:hover{color:var(--mist);border-color:rgba(34,211,238,.4)}
.filter-chip[aria-selected="true"],.filter-chip.is-active{
  color:var(--neon);border-color:rgba(54,241,205,.45);
  background:linear-gradient(180deg,rgba(54,241,205,.14),rgba(54,241,205,.03));
}

.has-js [data-reveal]{opacity:0;transform:translateY(14px);transition:opacity .55s var(--ease),transform .55s var(--ease)}
.has-js [data-reveal][data-revealed="true"]{opacity:1;transform:none}

.back-to-top{
  position:fixed;right:20px;bottom:22px;z-index:140;
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 14px;border:1px solid var(--border);border-radius:4px;
  background:rgba(11,36,56,.94);color:var(--text-muted);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;cursor:pointer;
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
  transition:color .2s var(--ease),border-color .2s var(--ease),box-shadow .25s var(--ease);
}
.back-to-top:hover{color:var(--neon);border-color:rgba(54,241,205,.45);box-shadow:var(--glow-neon)}

/* ---------- 11. 头部 ---------- */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(6,24,38,.93);
  border-bottom:1px solid var(--border);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  transition:border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.site-header[data-scrolled="true"]{
  border-bottom-color:rgba(54,241,205,.4);
  box-shadow:0 20px 44px -34px rgba(0,0,0,.98);
}
.header-strip{background:rgba(11,36,56,.86);border-bottom:1px solid rgba(31,74,95,.7)}
.header-strip-inner{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  width:min(var(--shell),100%);margin-inline:auto;padding:6px var(--gutter);
}
.strip-brand,.strip-note{
  margin:0;font-family:var(--font-mono);font-size:11px;font-weight:500;
  letter-spacing:.12em;line-height:1.7;color:var(--silver);
}
.strip-note{color:var(--text-dim)}
.header-inner{
  position:relative;display:flex;align-items:center;gap:20px;
  width:min(var(--shell),100%);margin-inline:auto;padding:12px var(--gutter);
}
.brand{
  display:inline-grid;grid-template-columns:auto auto;grid-template-rows:auto auto;
  align-items:center;column-gap:10px;text-decoration:none;color:var(--mist);
}
.brand-mark{
  grid-row:1 / span 2;width:12px;height:12px;
  background:var(--neon);transform:rotate(45deg);
  box-shadow:0 0 14px rgba(54,241,205,.7);
}
.brand-name{grid-column:2;font-size:19px;font-weight:800;line-height:1.25;letter-spacing:.01em;transition:color .2s var(--ease)}
.brand-tag{grid-column:2;font-family:var(--font-mono);font-size:11px;font-weight:500;letter-spacing:.18em;line-height:1.4;color:var(--silver)}
.brand:hover .brand-name{color:var(--neon)}

.site-nav{display:flex;align-items:center;gap:16px;margin-left:auto}
.nav-list{display:flex;align-items:center;gap:2px;list-style:none;margin:0;padding:0}
.nav-item{display:flex}
.nav-link{
  position:relative;display:inline-flex;align-items:baseline;gap:7px;
  padding:9px 11px;border:1px solid transparent;border-radius:4px;
  color:var(--silver);font-size:15px;font-weight:700;text-decoration:none;
  transition:color .2s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease);
}
.nav-link:hover{color:var(--mist);background:rgba(18,58,82,.85);border-color:var(--border)}
.nav-index{font-family:var(--font-mono);font-size:10px;font-weight:500;letter-spacing:.08em;color:var(--text-dim);transition:color .2s var(--ease)}
.nav-link:hover .nav-index{color:var(--electric)}
.nav-text{white-space:nowrap}
.nav-link[aria-current="page"]{
  color:var(--neon);border-color:rgba(54,241,205,.4);
  background:linear-gradient(180deg,rgba(54,241,205,.14),rgba(54,241,205,.02));
}
.nav-link[aria-current="page"] .nav-index{color:var(--neon)}
.nav-link[aria-current="page"]::after{
  content:"";position:absolute;left:11px;right:11px;bottom:4px;height:2px;border-radius:2px;
  background:var(--neon);box-shadow:0 0 10px rgba(54,241,205,.85);
}
.nav-cta{white-space:nowrap;font-size:14px;padding:10px 15px}

.nav-toggle{
  display:none;align-items:center;gap:10px;margin-left:auto;
  padding:9px 13px;border:1px solid var(--border);border-radius:4px;
  background:rgba(11,36,56,.9);color:var(--mist);
  font-family:var(--font-mono);font-size:12px;font-weight:500;letter-spacing:.12em;cursor:pointer;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.nav-toggle:hover{color:var(--neon);border-color:rgba(54,241,205,.4)}
.nav-toggle[aria-expanded="true"]{color:var(--neon);border-color:rgba(54,241,205,.5)}
.nav-toggle-bars{display:inline-flex;flex-direction:column;gap:3px;width:16px}
.nav-toggle-bars i{display:block;height:1px;background:currentColor}

.header-progress{height:2px;background:rgba(31,74,95,.55);overflow:hidden}
.header-progress-bar{
  display:block;height:100%;width:100%;
  transform:scaleX(0);transform-origin:0 50%;
  background:linear-gradient(90deg,var(--electric),var(--neon) 58%,var(--coral));
}

@media (max-width:1079px){
  .nav-toggle{display:inline-flex}
  .site-nav{
    position:absolute;left:0;right:0;top:100%;
    display:grid;grid-template-columns:minmax(0,1fr);gap:4px;margin:0;
    padding:16px var(--gutter) 22px;
    background:rgba(6,24,38,.98);
    border-top:1px solid var(--border);border-bottom:1px solid var(--border);
    box-shadow:0 32px 60px -32px rgba(0,0,0,.98);
    max-height:calc(100vh - 128px);overflow-y:auto;
    visibility:hidden;opacity:0;transform:translateY(-10px);pointer-events:none;
    transition:opacity .22s var(--ease),transform .22s var(--ease),visibility .22s linear;
  }
  .site-nav[data-open]{visibility:visible;opacity:1;transform:none;pointer-events:auto}
  .nav-list{flex-direction:column;align-items:stretch;gap:4px}
  .nav-item{display:flex}
  .nav-link{
    flex:1;justify-content:flex-start;padding:12px 14px;font-size:16px;
    border-color:rgba(31,74,95,.6);background:rgba(11,36,56,.55);
  }
  .nav-link[aria-current="page"]::after{display:none}
  .nav-cta{width:100%;margin-top:8px}
}
@media (max-width:767px){
  .strip-note{display:none}
  .header-strip-inner{justify-content:flex-start}
}

/* ---------- 12. 页脚 ---------- */
.site-footer{
  position:relative;margin-top:clamp(48px,7vw,96px);
  background:linear-gradient(180deg,#071C2C 0%,#04121C 100%);
  border-top:1px solid var(--border);
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(54,241,205,.6),rgba(34,211,238,.35),transparent);
}
.footer-inner{
  width:min(var(--shell),100%);margin-inline:auto;
  padding:clamp(40px,6vw,72px) var(--gutter) 24px;
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:clamp(24px,3vw,46px);
}
.footer-col{min-width:0}
.footer-title{
  margin:0 0 14px;
  font-family:var(--font-mono);font-size:11px;font-weight:500;
  letter-spacing:.18em;text-transform:uppercase;color:var(--electric);
}
.footer-note{margin:0 0 12px;font-size:13px;line-height:1.9;color:var(--silver);max-width:34ch}
.footer-note--muted{color:var(--text-dim);max-width:40ch}
.footer-links{list-style:none;margin:0;padding:0;display:grid;gap:9px}
.footer-links a{
  display:inline-flex;align-items:baseline;gap:9px;
  color:var(--silver);font-size:14px;line-height:1.6;
  transition:color .2s var(--ease);
}
.footer-links a::before{
  content:"";width:5px;height:5px;flex:none;
  background:var(--line);transform:rotate(45deg);
  transition:background-color .2s var(--ease),box-shadow .2s var(--ease);
}
.footer-links a:hover{color:var(--neon)}
.footer-links a:hover::before{background:var(--neon);box-shadow:0 0 8px rgba(54,241,205,.8)}
.footer-contact{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.footer-contact__row{display:flex;align-items:baseline;gap:10px;font-size:14px}
.footer-contact__key{
  flex:none;min-width:44px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;color:var(--text-dim);
}
.footer-contact__val{
  font-family:var(--font-mono);font-size:13.5px;letter-spacing:.02em;color:var(--mist);
  word-break:break-all;
}
.footer-contact__val--text{font-family:var(--font-sans);font-size:14px;word-break:normal}
.footer-contact__note{margin:14px 0 0;font-size:12px;line-height:1.8;color:var(--text-dim);max-width:30ch}
.footer-base{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px 24px;
  margin-top:clamp(28px,4vw,46px);padding-top:18px;
  border-top:1px solid rgba(31,74,95,.7);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.05em;color:var(--silver);
}
.footer-base p{margin:0}
.footer-base .icp{color:var(--text-dim)}

@media (max-width:1023px){
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-note,.footer-contact__note{max-width:none}
}
@media (max-width:600px){
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .footer-base{justify-content:flex-start}
}

/* ---------- 13. 减弱动效 ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .has-js [data-reveal]{opacity:1 !important;transform:none !important}
  .card:hover,.btn:hover{transform:none}
}