/* ===========================================================
   新葡萄棋牌 · /assets/site.css
   共享外壳：reset / 变量 / 中文排版 / 头部 / 页脚 / 基础组件
   氛围：暖白纸面 + 葡萄紫骨架 + 青提绿状态 + 琥珀金数据
   =========================================================== */

:root{
  --purple:#6B3FA0;
  --purple-deep:#4A2A70;
  --purple-soft:#EDE4F6;
  --green:#A8D5A2;
  --green-deep:#5E9A5A;
  --amber:#D9A441;
  --amber-deep:#8A6520;
  --warm-white:#FBF8F2;
  --beige:#E7E2D8;
  --ink:#2A2620;
  --gray:#6F6A61;
  --warn:#C97B3C;

  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-display:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Roboto Mono",monospace;

  --radius-pill:999px;
  --radius-lg:20px;
  --radius-md:14px;
  --radius-sm:8px;

  --line:1px solid var(--beige);
  --shadow-soft:0 1px 2px rgba(42,38,32,.05),0 10px 30px rgba(107,63,160,.07);
  --shadow-lift:0 2px 4px rgba(42,38,32,.06),0 18px 42px rgba(107,63,160,.13);

  --container:1200px;
  --gutter:24px;
  --header-offset:14px;
  --ease:cubic-bezier(.22,.61,.36,1);

  --z-nav:60;
  --z-top:70;
  --z-progress:80;
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.75;
  color:var(--ink);
  background-color:var(--warm-white);
  background-image:
    linear-gradient(rgba(231,226,216,.38) 1px,transparent 1px),
    linear-gradient(90deg,rgba(231,226,216,.38) 1px,transparent 1px);
  background-size:88px 88px;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img,picture,svg,video{max-width:100%;display:block;height:auto}
main{display:block}
#main-content{display:block;scroll-margin-top:112px}
::selection{background:var(--purple-soft);color:var(--purple-deep)}

h1,h2,h3,h4,h5{margin:0 0 .5em;font-family:var(--font-display);font-weight:600;line-height:1.25;color:var(--ink)}
h1{font-weight:400;font-size:clamp(34px,6vw,64px);line-height:1.06;letter-spacing:-.02em}
h2{font-size:clamp(23px,3vw,32px)}
h3{font-size:20px}
p{margin:0 0 1em}
a{color:var(--purple);text-decoration:none}
a:hover{color:var(--purple-deep)}
button{font-family:inherit}
ul,ol{margin:0 0 1em;padding-left:1.25em}
hr{border:0;border-top:var(--line);margin:32px 0}
:focus-visible{outline:3px solid var(--purple);outline-offset:3px;border-radius:6px}
.site-footer :focus-visible{outline-color:var(--green)}

/* ---------- 布局容器 ---------- */
.container{width:100%;max-width:var(--container);margin-inline:auto;padding-inline:var(--gutter)}
.container--wide{max-width:1360px}
.section{padding:76px 0}
.section--tight{padding:44px 0}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px 32px;margin-bottom:28px}
.eyebrow{margin:0 0 10px;font-size:12px;font-weight:500;letter-spacing:.2em;color:var(--purple);font-family:var(--font-mono)}
.section-title{margin:0;font-size:clamp(24px,3.4vw,34px);letter-spacing:-.01em}
.section-note{margin:0;max-width:52ch;font-size:14.5px;color:var(--gray)}

.prose{max-width:72ch;font-size:17px;line-height:1.8}
.prose p{margin:0 0 1.1em}
.prose h2{font-size:26px;margin:1.8em 0 .6em}
.prose h3{font-size:19px;margin:1.5em 0 .5em}
.prose ul,.prose ol{padding-left:1.3em}
.prose li{margin:.35em 0}
.prose a{border-bottom:1px solid rgba(107,63,160,.3)}

.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))}
.split{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start}

/* ---------- 文本与数据零件 ---------- */
.index-label{font-family:var(--font-mono);font-size:12px;font-weight:400;letter-spacing:.12em;color:var(--gray)}
.data-num{
  display:inline-block;
  font-family:var(--font-mono);
  font-size:clamp(20px,2.6vw,30px);
  font-weight:700;
  line-height:1.1;
  letter-spacing:-.01em;
  color:var(--amber);
  font-variant-numeric:tabular-nums;
}
.tag{display:inline-flex;align-items:center;gap:6px;padding:4px 11px;border-radius:var(--radius-pill);font-size:12.5px;letter-spacing:.06em;border:1px solid var(--beige);background:var(--warm-white);color:var(--gray)}
.tag--ok{background:rgba(168,213,162,.26);border-color:rgba(94,154,90,.38);color:var(--green-deep)}
.tag--purple{background:var(--purple-soft);border-color:rgba(107,63,160,.22);color:var(--purple-deep)}
.tag--amber{background:rgba(217,164,65,.16);border-color:rgba(217,164,65,.42);color:var(--amber-deep)}
.watermark{
  position:absolute;z-index:0;pointer-events:none;user-select:none;
  font-family:var(--font-mono);font-weight:700;line-height:1;
  font-size:clamp(80px,18vw,220px);color:var(--purple);opacity:.06;
}
.visually-hidden{position:absolute!important;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:13px 24px;border-radius:var(--radius-pill);
  font-size:15px;line-height:1.2;border:1px solid transparent;cursor:pointer;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.btn--primary{background:var(--purple);color:#fff;box-shadow:0 10px 24px rgba(107,63,160,.22)}
.btn--primary:hover{background:var(--purple-deep);color:#fff;transform:translateY(-2px)}
.btn--ghost{background:transparent;color:var(--purple-deep);border-color:rgba(107,63,160,.32)}
.btn--ghost:hover{background:var(--purple-soft);border-color:rgba(107,63,160,.5)}
.btn--quiet{background:var(--warm-white);color:var(--ink);border-color:var(--beige)}
.btn--quiet:hover{background:var(--purple-soft);color:var(--purple-deep)}

/* ---------- 面包屑 ---------- */
.breadcrumbs{padding:24px 0 0}
.breadcrumbs-list{display:flex;flex-wrap:wrap;align-items:center;list-style:none;margin:0;padding:0;font-family:var(--font-mono);font-size:12.5px;letter-spacing:.08em;color:var(--gray)}
.breadcrumbs-item{display:flex;align-items:center}
.breadcrumbs-item+.breadcrumbs-item::before{content:"/";margin:0 9px;color:rgba(42,38,32,.22)}
.breadcrumbs-link{color:var(--gray)}
.breadcrumbs-link:hover{color:var(--purple)}
.breadcrumbs-item[aria-current="page"]{color:var(--purple-deep)}

/* ---------- 表格基础 ---------- */
.table-shell{overflow-x:auto;border:var(--line);border-radius:var(--radius-lg);background:var(--warm-white);box-shadow:var(--shadow-soft);-webkit-overflow-scrolling:touch}
.data-table{width:100%;min-width:640px;border-collapse:collapse;font-size:15.5px;background:var(--warm-white)}
.data-table caption{caption-side:top;text-align:left;padding:0 0 10px;font-family:var(--font-mono);font-size:12px;letter-spacing:.12em;color:var(--gray)}
.data-table th,.data-table td{padding:13px 16px;text-align:left;vertical-align:middle;border-bottom:1px solid var(--beige)}
.data-table thead th{background:var(--purple);color:#fff;font-size:13.5px;font-weight:600;letter-spacing:.06em;border-bottom-color:transparent;white-space:nowrap}
.data-table tbody tr{transition:background .2s var(--ease)}
.data-table tbody tr:nth-child(even){background:rgba(237,228,246,.45)}
.data-table tbody tr:hover{background:var(--purple-soft)}
.data-table tbody tr:last-child td{border-bottom:0}

/* ---------- 抽屉 ---------- */
.drawer{border:var(--line);border-radius:var(--radius-md);background:var(--warm-white);overflow:hidden}
.drawer+.drawer{margin-top:10px}
.drawer-trigger{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:16px 20px;background:none;border:0;cursor:pointer;
  font-size:16px;font-weight:600;color:var(--ink);text-align:left;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.drawer-trigger:hover{background:var(--purple-soft);color:var(--purple-deep)}
.drawer-trigger[aria-expanded="true"]{background:var(--purple-soft);color:var(--purple-deep)}
.drawer-icon{position:relative;width:22px;height:22px;flex:none;border-radius:50%;border:1px solid rgba(107,63,160,.35)}
.drawer-icon::before,.drawer-icon::after{content:"";position:absolute;left:50%;top:50%;background:var(--purple);border-radius:2px;transform:translate(-50%,-50%)}
.drawer-icon::before{width:10px;height:1.6px}
.drawer-icon::after{width:1.6px;height:10px;transition:transform .24s var(--ease),opacity .24s var(--ease)}
.drawer-trigger[aria-expanded="true"] .drawer-icon::after{opacity:0;transform:translate(-50%,-50%) scaleY(0)}
.drawer-panel{height:0;overflow:hidden;transition:height .24s var(--ease)}
.drawer-panel[data-open="true"]{height:auto}
.drawer-body{padding:2px 20px 20px;font-size:15.5px;line-height:1.75}
.drawer-body>:first-child{margin-top:0}
.drawer-body>:last-child{margin-bottom:0}

/* ---------- 图片容器 ---------- */
.media-frame{
  position:relative;display:grid;overflow:hidden;
  border:var(--line);border-radius:var(--radius-lg);
  background:linear-gradient(160deg,rgba(237,228,246,.9),rgba(251,248,242,.95));
  box-shadow:var(--shadow-soft);
}
.media-frame img{width:100%;height:100%;object-fit:cover}
.media-frame--16-9{aspect-ratio:16/9}
.media-frame--4-3{aspect-ratio:4/3}
.media-frame--21-9{aspect-ratio:21/9}
.media-frame__placeholder{display:grid;place-items:center;height:100%;padding:20px;font-family:var(--font-mono);font-size:12px;letter-spacing:.12em;color:rgba(107,63,160,.6);text-align:center}
.media-frame__label{position:absolute;left:14px;bottom:12px;padding:5px 12px;border-radius:var(--radius-pill);background:rgba(251,248,242,.94);border:var(--line);font-family:var(--font-mono);font-size:11.5px;letter-spacing:.08em;color:var(--gray)}

/* ---------- 显现动效 ---------- */
[data-reveal]{opacity:0;transform:translateY(14px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
[data-reveal].is-visible{opacity:1;transform:none}

/* ===========================================================
   头部：悬浮胶囊浮岛
   =========================================================== */
.skip-link{
  position:fixed;left:16px;top:-90px;z-index:200;
  padding:10px 18px;border-radius:var(--radius-pill);
  background:var(--purple);color:#fff;font-size:14px;
  transition:top .2s var(--ease);
}
.skip-link:focus{top:12px;color:#fff}

.site-header{position:sticky;top:var(--header-offset);z-index:var(--z-nav);padding-inline:var(--gutter)}
.header-shell{position:relative;max-width:var(--container);margin-inline:auto}
.header-inner{
  display:flex;align-items:center;gap:16px;
  padding:10px 12px 10px 16px;
  background:rgba(251,248,242,.9);
  border:1px solid var(--beige);
  border-radius:var(--radius-pill);
  box-shadow:var(--shadow-soft);
  -webkit-backdrop-filter:blur(14px) saturate(150%);
  backdrop-filter:blur(14px) saturate(150%);
  transition:box-shadow .24s var(--ease),border-color .24s var(--ease),background .24s var(--ease),transform .24s var(--ease);
}
.site-header.is-elevated .header-inner{
  border-color:rgba(107,63,160,.24);
  background:rgba(251,248,242,.97);
  box-shadow:var(--shadow-lift);
  transform:translateY(-2px);
}

.scroll-progress{
  position:fixed;left:0;right:0;top:0;height:3px;z-index:var(--z-progress);
  background:linear-gradient(90deg,var(--purple),var(--green) 62%,var(--amber));
  transform:scaleX(0);transform-origin:0 50%;
  pointer-events:none;
}

.brand{display:inline-flex;align-items:center;gap:12px;flex:none;color:var(--ink)}
.brand:hover .brand-name{color:var(--purple)}
.brand-mark{
  position:relative;width:38px;height:38px;flex:none;border-radius:13px;
  background:var(--purple);
  box-shadow:inset 0 0 0 1px rgba(74,42,112,.6);
}
.brand-mark::before{
  content:"";position:absolute;left:9px;top:9px;width:9px;height:9px;border-radius:50%;
  background:var(--green);
  box-shadow:9px 0 0 0 rgba(251,248,242,.92), 4.5px 9px 0 0 var(--amber);
}
.brand-mark--footer{background:var(--purple-deep);box-shadow:inset 0 0 0 1px rgba(251,248,242,.4)}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-family:var(--font-display);font-size:19px;font-weight:700;letter-spacing:.02em;transition:color .2s var(--ease)}
.brand-sub{font-family:var(--font-mono);font-size:11px;font-weight:400;letter-spacing:.14em;color:var(--gray)}

.nav-toggle{
  display:none;align-items:center;gap:10px;margin-left:auto;
  padding:9px 14px;border-radius:var(--radius-pill);
  background:var(--purple-soft);border:1px solid rgba(107,63,160,.22);
  color:var(--purple-deep);font-size:13px;letter-spacing:.08em;cursor:pointer;
  transition:background .2s var(--ease),border-color .2s var(--ease);
}
.nav-toggle:hover{background:#E4D8F2;border-color:rgba(107,63,160,.4)}
.nav-toggle-label{font-family:var(--font-mono)}
.nav-toggle-bars{display:inline-flex;flex-direction:column;gap:3px;width:16px}
.nav-toggle-bars i{display:block;height:2px;border-radius:2px;background:currentColor;transition:transform .2s var(--ease),opacity .2s var(--ease)}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars i:nth-child(1){transform:translateY(5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars i:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars i:nth-child(3){transform:translateY(-5px) rotate(-45deg)}

.primary-nav{display:flex;align-items:center;margin-left:auto}
.nav-list{display:flex;align-items:center;gap:4px;list-style:none;margin:0;padding:0}
.nav-item{display:flex}
.nav-link{
  display:inline-flex;align-items:center;gap:7px;
  padding:9px 15px;border-radius:var(--radius-pill);
  border:1px solid transparent;color:var(--ink);
  font-size:15px;line-height:1.2;white-space:nowrap;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.nav-link:hover{background:var(--purple-soft);border-color:rgba(107,63,160,.18);color:var(--purple-deep)}
.nav-link[aria-current="page"]{background:var(--purple);border-color:transparent;color:#fff;box-shadow:0 6px 16px rgba(107,63,160,.24)}
.nav-link[aria-current="page"] .nav-dot{background:var(--warm-white);box-shadow:0 0 0 3px rgba(251,248,242,.28)}
.nav-dot{width:7px;height:7px;flex:none;border-radius:50%;background:var(--green);box-shadow:0 0 0 3px rgba(168,213,162,.35)}
.nav-cta{
  display:inline-flex;align-items:center;margin-left:10px;
  padding:10px 18px;border-radius:var(--radius-pill);
  background:var(--purple-deep);color:var(--warm-white);
  font-size:14px;letter-spacing:.04em;white-space:nowrap;
  transition:background .2s var(--ease),transform .2s var(--ease);
}
.nav-cta:hover{background:var(--purple);color:#fff;transform:translateY(-1px)}

.to-top{
  position:fixed;right:22px;bottom:26px;z-index:var(--z-top);
  display:inline-flex;align-items:center;justify-content:center;
  width:46px;height:46px;border-radius:var(--radius-pill);
  background:rgba(251,248,242,.95);border:1px solid rgba(107,63,160,.26);
  color:var(--purple-deep);font-size:17px;line-height:1;cursor:pointer;
  box-shadow:var(--shadow-soft);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .24s var(--ease),transform .24s var(--ease),visibility .24s var(--ease),background .2s var(--ease);
}
.to-top[data-visible="true"]{opacity:1;visibility:visible;transform:none}
.to-top:hover{background:var(--purple-soft)}

/* ===========================================================
   页脚：深葡萄紫分区 + 四列索引
   =========================================================== */
.site-footer{
  position:relative;margin-top:96px;padding:66px 0 28px;
  background:var(--purple-deep);color:rgba(251,248,242,.86);
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,rgba(168,213,162,0),var(--green),rgba(168,213,162,0));
  opacity:.6;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:44px 32px}
.footer-col{min-width:0}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.footer-brand-name{font-family:var(--font-display);font-size:19px;font-weight:700;letter-spacing:.02em;color:var(--warm-white)}
.footer-tagline{margin:0 0 10px;font-size:17px;line-height:1.6;color:var(--warm-white)}
.footer-note{margin:0;max-width:34ch;font-size:13px;line-height:1.7;color:rgba(251,248,242,.62)}
.footer-title{margin:0 0 14px;font-family:var(--font-mono);font-size:12px;font-weight:500;letter-spacing:.18em;color:var(--green)}
.footer-list{display:flex;flex-direction:column;gap:9px;list-style:none;margin:0;padding:0}
.footer-list--contact{gap:11px}
.footer-link{
  display:inline-block;font-size:15px;color:rgba(251,248,242,.86);
  border-bottom:1px solid transparent;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.footer-link:hover{color:var(--green);border-bottom-color:rgba(168,213,162,.55)}
.footer-text{font-size:15px;line-height:1.6;color:rgba(251,248,242,.72)}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px 28px;
  margin-top:52px;padding-top:20px;
  border-top:1px solid rgba(251,248,242,.16);
}
.footer-meta{margin:0;font-family:var(--font-mono);font-size:12.5px;letter-spacing:.04em;color:rgba(251,248,242,.6)}
.footer-meta--copy{color:rgba(251,248,242,.74)}

/* ===========================================================
   响应式
   =========================================================== */
@media (max-width:1080px){
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:36px 28px}
  .footer-col--brand{grid-column:1 / -1}
  .footer-note{max-width:60ch}
}
@media (max-width:980px){
  .nav-toggle{display:inline-flex}
  .nav-cta{display:none}
  .primary-nav{
    position:absolute;left:0;right:0;top:calc(100% + 10px);
    display:none;flex-direction:column;align-items:stretch;
    margin-left:0;padding:14px;
    max-height:min(74vh,540px);overflow-y:auto;
    background:rgba(251,248,242,.98);
    border:1px solid var(--beige);border-radius:24px;
    box-shadow:var(--shadow-lift);
    -webkit-backdrop-filter:blur(14px);
    backdrop-filter:blur(14px);
  }
  .primary-nav[data-open="true"]{display:flex}
  .nav-list{flex-direction:column;align-items:stretch;gap:6px}
  .nav-item{display:block}
  .nav-link{
    justify-content:flex-start;width:100%;
    padding:13px 16px;font-size:16px;
    background:var(--warm-white);border-color:var(--beige);
  }
  .nav-link[aria-current="page"]{border-color:transparent}
  .header-inner{padding:9px 10px 9px 14px}
  .split{grid-template-columns:1fr;gap:30px}
  .grid--4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid--3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .section{padding:60px 0}
}
@media (max-width:640px){
  :root{--gutter:18px;--header-offset:10px}
  body{font-size:16px;background-size:64px 64px}
  .brand-sub{display:none}
  .brand-mark{width:34px;height:34px;border-radius:12px}
  .brand-mark::before{left:8px;top:8px;box-shadow:8px 0 0 0 rgba(251,248,242,.92), 4px 8px 0 0 var(--amber)}
  .brand-name{font-size:17px}
  .scroll-progress{height:2px}
  .section{padding:48px 0}
  .section-head{margin-bottom:22px}
  .grid--2,.grid--3,.grid--4{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .site-footer{margin-top:64px;padding-top:48px}
  .footer-bottom{margin-top:36px}
  .to-top{right:14px;bottom:16px;width:42px;height:42px}
  .data-table th,.data-table td{padding:11px 13px}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
  [data-reveal]{opacity:1;transform:none}
  .scroll-progress{display:none}
  .site-header.is-elevated .header-inner{transform:none}
}