/* =========================================================
   澳门电子会馆 · /assets/site.css
   共享外壳与基础组件（页面特色布局请另建专属 CSS）
   ========================================================= */

:root{
  /* 色彩 —— 夜航灯牌 × 档案库房 */
  --ink:#070B16;
  --panel:#0F1526;
  --edge:#1B2436;
  --paper:#F2F0EA;
  --grey:#A8B0C0;
  --brick:#B33A2E;
  --brick-deep:#7A2318;
  --brick-light:#E0705F;
  --neon:#2FD6D0;
  --gold:#E5B25C;
  --grid:#2A3348;
  --black:#04070F;

  /* 字体 */
  --sans:'Noto Sans SC','Source Han Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  --mono:'JetBrains Mono','IBM Plex Mono',ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;

  /* 版面 */
  --wrap:1200px;
  --gap:clamp(16px,2.2vw,28px);
  --radius:2px;
  --shadow-stack:6px 6px 0 rgba(0,0,0,.45);
  --shadow-deep:0 24px 48px rgba(0,0,0,.6);
  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
  scroll-padding-top:120px;
}
body{
  margin:0;
  background:var(--ink);
  color:var(--paper);
  font-family:var(--sans);
  font-size:17px;
  font-weight:400;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img,svg,video{max-width:100%;display:block}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5{margin:0;font-weight:900;letter-spacing:-.02em;line-height:1.15}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
button{font:inherit;color:inherit;background:none;border:0}
table{border-collapse:collapse;width:100%}
hr{border:0}
::selection{background:var(--brick);color:var(--paper)}

a{color:var(--neon);text-decoration:none}
a:hover{text-decoration:underline;text-underline-offset:3px}

:focus-visible{outline:2px solid var(--neon);outline-offset:3px;border-radius:var(--radius)}
#main-content{display:block}

/* ---------- 布局容器 ---------- */
.container{
  width:100%;
  max-width:var(--wrap);
  margin-inline:auto;
  padding-inline:clamp(16px,4vw,40px);
}
.container--narrow{max-width:720px}
.section{padding-block:clamp(48px,7vw,96px)}
.section--tight{padding-block:clamp(28px,4vw,56px)}
.rule{height:1px;background:var(--edge);margin-block:clamp(20px,3vw,36px)}

/* ---------- 12 列网格：非对称 7 / 4，第 8 列留白 ---------- */
.grid-12{
  display:grid;
  grid-template-columns:repeat(12,minmax(0,1fr));
  gap:var(--gap);
}
.grid-12 > *{min-width:0}
.col-main{grid-column:1 / span 7}
.col-side{grid-column:9 / span 4}
.col-full{grid-column:1 / -1}
.col-side--sticky{position:sticky;top:132px;align-self:start}
@media (max-width:1000px){
  .col-main,.col-side{grid-column:1 / -1}
  .col-side--sticky{position:static}
}

/* ---------- 排版 ---------- */
.eyebrow{
  font-family:var(--mono);
  font-size:12px;
  font-weight:600;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--gold);
  margin-bottom:12px;
}
.h2{font-size:clamp(28px,4vw,40px);font-weight:900;line-height:1.15}
.h3{font-size:24px;font-weight:800;line-height:1.3}
.lede{font-size:clamp(18px,2vw,21px);line-height:1.7;max-width:34em;color:var(--paper)}
.note-text{font-size:13px;line-height:1.6;color:var(--grey)}
.side-note{
  font-size:13px;
  line-height:1.65;
  color:var(--grey);
  border-left:1px solid var(--grid);
  padding-left:14px;
}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}
.hl{background:var(--brick);color:var(--paper);padding:0 5px;border-radius:1px}
.hl--gold{background:var(--gold);color:var(--black);padding:0 5px;border-radius:1px}
.visually-hidden{
  position:absolute!important;width:1px;height:1px;
  padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;
}

/* ---------- 超大编号 ---------- */
.section-no{
  display:block;
  font-family:var(--mono);
  font-weight:600;
  font-size:clamp(56px,10vw,128px);
  line-height:.8;
  letter-spacing:-.05em;
  color:#16203A;
  font-variant-numeric:tabular-nums;
  user-select:none;
}
.section-no--line{color:transparent;-webkit-text-stroke:1px var(--grid)}
.section-no--solid{color:var(--brick);-webkit-text-stroke:0}

/* ---------- 章节头 ---------- */
.chapter{display:flex;gap:clamp(16px,3vw,40px);align-items:flex-start}
.chapter__no{flex:0 0 auto}
.chapter__body{flex:1 1 auto;min-width:0;padding-top:6px}
@media (max-width:640px){
  .chapter{flex-direction:column;gap:8px}
  .chapter__body{padding-top:0}
}

/* ---------- 结论条 ---------- */
.lead-bar{
  border:1px solid var(--edge);
  border-left:3px solid var(--brick);
  background:linear-gradient(90deg,rgba(179,58,46,.16),rgba(15,21,38,.92) 62%);
  padding:clamp(16px,2.4vw,28px);
}
.lead-bar__title{
  font-size:clamp(18px,2.2vw,22px);
  font-weight:800;
  line-height:1.5;
  margin-bottom:8px;
}

/* ---------- 面板（纸张叠层） ---------- */
.stack{display:grid;gap:clamp(22px,3vw,40px)}
.panel{
  position:relative;
  background:var(--panel);
  border:1px solid var(--edge);
  border-radius:var(--radius);
  padding:clamp(18px,2.6vw,32px);
  box-shadow:var(--shadow-stack);
}
.panel--flat{box-shadow:none}
.panel--interactive{transition:transform .16s var(--ease),border-color .16s var(--ease)}
.panel--interactive:hover{transform:translateY(-2px);border-color:var(--grid)}
.panel__label{
  position:absolute;
  top:-11px;
  left:18px;
  background:var(--gold);
  color:var(--black);
  font-family:var(--mono);
  font-size:11px;
  font-weight:600;
  letter-spacing:.12em;
  text-transform:uppercase;
  padding:3px 14px 3px 9px;
  clip-path:polygon(0 0,100% 0,calc(100% - 8px) 50%,100% 100%,0 100%);
}

/* ---------- 提示与标签 ---------- */
.callout{
  border-left:3px solid var(--brick);
  background:rgba(179,58,46,.10);
  padding:14px 18px;
  font-size:15px;
  line-height:1.7;
}
.tag{
  display:inline-block;
  font-family:var(--mono);
  font-size:12px;
  font-weight:600;
  letter-spacing:.06em;
  padding:2px 8px;
  border:1px solid var(--edge);
  border-radius:var(--radius);
  color:var(--grey);
  white-space:nowrap;
}
.tag--gold{border-color:var(--gold);color:var(--gold)}
.tag--brick{border-color:var(--brick);color:var(--brick-light);background:rgba(179,58,46,.14)}
.tag--neon{border-color:var(--neon);color:var(--neon)}

/* ---------- 对照表 ---------- */
.table-scroll{
  border:1px solid var(--edge);
  background:var(--panel);
  overflow-x:auto;
  -webkit-overflow-scrolling:touch;
}
.data-table{min-width:640px;font-size:15px}
.data-table th{
  font-family:var(--mono);
  font-size:12px;
  font-weight:600;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--grey);
  text-align:left;
  padding:12px 16px;
  border-bottom:1px solid var(--grid);
  white-space:nowrap;
}
.data-table td{
  padding:13px 16px;
  border-bottom:1px solid var(--edge);
  vertical-align:top;
  line-height:1.65;
}
.data-table tbody tr{transition:background-color .16s var(--ease),box-shadow .16s var(--ease)}
.data-table tbody tr:hover{background:rgba(47,214,208,.07);box-shadow:inset 3px 0 0 var(--neon)}
.data-table tbody tr:last-child td{border-bottom:0}

/* ---------- 目录索引 ---------- */
.toc{
  border:1px solid var(--edge);
  background:var(--panel);
  padding:10px;
}
.toc__head{
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--gold);
  padding:6px 10px 12px;
  border-bottom:1px solid var(--edge);
  margin-bottom:8px;
}
.toc__link{
  display:block;
  padding:8px 12px;
  font-size:15px;
  font-weight:600;
  color:var(--grey);
  border-left:2px solid transparent;
  transition:color .16s var(--ease),border-color .16s var(--ease),background-color .16s var(--ease);
}
.toc__link:hover{color:var(--paper);background:rgba(47,214,208,.06);text-decoration:none}
.toc__link.is-active{color:var(--neon);border-left-color:var(--neon);background:rgba(47,214,208,.08)}

/* ---------- 面包屑 ---------- */
.breadcrumbs{
  display:flex;
  flex-wrap:wrap;
  gap:6px 10px;
  font-family:var(--mono);
  font-size:12px;
  color:var(--grey);
  letter-spacing:.04em;
}
.breadcrumbs li{display:flex;align-items:center;gap:10px}
.breadcrumbs li + li::before{content:"/";color:var(--grid)}
.breadcrumbs a{color:var(--grey)}
.breadcrumbs a:hover{color:var(--neon)}
.breadcrumbs [aria-current="page"]{color:var(--paper)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:11px 18px;
  border:1px solid var(--edge);
  border-radius:var(--radius);
  background:var(--panel);
  color:var(--paper);
  font-size:15px;
  font-weight:700;
  line-height:1.2;
  letter-spacing:.01em;
  text-decoration:none;
  cursor:pointer;
  transition:transform .16s var(--ease),background-color .16s var(--ease),
             border-color .16s var(--ease),box-shadow .16s var(--ease);
}
.btn:hover{text-decoration:none;transform:translateY(-2px);background:#141C30;border-color:var(--grid)}
.btn:active{transform:translateY(0)}
.btn--primary{
  background:var(--brick);
  border-color:var(--brick-deep);
  color:var(--paper);
  box-shadow:3px 3px 0 rgba(0,0,0,.55);
}
.btn--primary:hover{background:#C4473A;border-color:var(--brick-deep)}
.btn--primary:active{background:var(--brick-deep);box-shadow:none}
.btn--ghost{background:transparent}
.btn--small{padding:7px 12px;font-size:13px}

.link-quiet{
  color:var(--grey);
  font-size:15px;
  font-weight:600;
  padding-bottom:2px;
  border-bottom:1px solid var(--grid);
  transition:color .16s var(--ease),border-color .16s var(--ease);
}
.link-quiet:hover{color:var(--paper);border-bottom-color:var(--gold);text-decoration:none}

/* ---------- 图片容器（页面阶段放占位图） ---------- */
.figure{margin:0}
.figure__frame{
  position:relative;
  display:block;
  width:100%;
  aspect-ratio:16 / 9;
  background:linear-gradient(158deg,var(--panel) 0%,var(--ink) 55%,var(--black) 100%);
  border:1px solid var(--edge);
  border-radius:var(--radius);
  overflow:hidden;
}
.figure__frame img{width:100%;height:100%;object-fit:cover}
.figure__frame::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background-image:linear-gradient(to right,rgba(42,51,72,.55) 1px,transparent 1px),
                   linear-gradient(to bottom,rgba(42,51,72,.55) 1px,transparent 1px);
  background-size:64px 64px;
  opacity:.55;
}
.figure--wide .figure__frame{aspect-ratio:21 / 9}
.figure--square .figure__frame{aspect-ratio:1 / 1}
.figure--portrait .figure__frame{aspect-ratio:3 / 4}
.figure__caption{
  font-family:var(--mono);
  font-size:12px;
  line-height:1.6;
  color:var(--grey);
  margin-top:10px;
}

/* ---------- 显现动效（无 JS 时内容始终可见） ---------- */
.has-js [data-reveal]{
  opacity:0;
  transform:translateY(8px);
  transition:opacity .28s var(--ease),transform .28s var(--ease);
}
.has-js [data-reveal].is-revealed{opacity:1;transform:none}

/* =========================================================
   跳过链接
   ========================================================= */
.skip-link{
  position:absolute;
  left:12px;
  top:-72px;
  z-index:200;
  background:var(--gold);
  color:var(--black);
  font-weight:700;
  font-size:14px;
  padding:10px 16px;
  border-radius:var(--radius);
  transition:top .16s var(--ease);
}
.skip-link:focus{top:12px;text-decoration:none;color:var(--black)}

/* =========================================================
   头部：双层信息导航
   ========================================================= */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(7,11,22,.95);
  backdrop-filter:blur(6px);
  border-bottom:1px solid var(--edge);
}

/* 上层：品牌说明条 */
.masthead{background:var(--black);border-bottom:1px solid var(--edge)}
.masthead__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:10px 24px;
  min-height:52px;
  padding-block:9px;
}
.brandmark{display:flex;align-items:baseline;gap:12px;flex-wrap:wrap;min-width:0}
.brandmark__name{
  font-size:20px;
  font-weight:900;
  letter-spacing:.05em;
  color:var(--paper);
}
.brandmark__name:hover{color:var(--gold);text-decoration:none}
.brandmark__tag{
  font-size:12px;
  letter-spacing:.02em;
  color:var(--grey);
  border-left:1px solid var(--grid);
  padding-left:12px;
}
.meta-strip{display:flex;align-items:center;flex-wrap:wrap;gap:8px}
.meta-item{
  display:inline-flex;
  align-items:baseline;
  gap:6px;
  border:1px solid var(--edge);
  border-radius:var(--radius);
  padding:3px 8px;
}
.meta-key{
  font-family:var(--mono);
  font-size:11px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--grey);
}
.meta-val{
  font-family:var(--mono);
  font-size:13px;
  font-weight:600;
  color:var(--gold);
  font-variant-numeric:tabular-nums;
}
.copy-chip{
  font-family:var(--mono);
  font-size:11px;
  letter-spacing:.06em;
  padding:5px 9px;
  border:1px dashed var(--grid);
  border-radius:var(--radius);
  color:var(--grey);
  cursor:pointer;
  transition:color .16s var(--ease),border-color .16s var(--ease),border-style .16s var(--ease);
}
.copy-chip:hover{color:var(--neon);border-color:var(--neon)}
.copy-chip.is-done{color:var(--neon);border-style:solid;border-color:var(--neon)}

/* 下层：栏目条 */
.nav-bar{position:relative}
.nav-bar__inner{
  display:flex;
  align-items:center;
  gap:14px;
  min-height:58px;
}
.site-nav{flex:1 1 auto;min-width:0}
.nav-list{
  display:flex;
  align-items:center;
  gap:2px;
  overflow-x:auto;
  scrollbar-width:thin;
}
.nav-link{
  display:inline-block;
  padding:9px 14px;
  font-size:15px;
  font-weight:700;
  color:var(--grey);
  white-space:nowrap;
  border-bottom:2px solid transparent;
  transition:color .16s var(--ease),background-color .16s var(--ease),border-color .16s var(--ease);
}
.nav-link:hover{
  color:var(--paper);
  background:rgba(47,214,208,.07);
  border-bottom-color:var(--gold);
  text-decoration:none;
}
.nav-link[aria-current="page"]{
  color:var(--paper);
  background:rgba(179,58,46,.20);
  border-bottom-color:var(--brick);
  box-shadow:inset 0 -1px 0 var(--brick-deep);
}
.header-actions{display:flex;align-items:center;gap:14px;margin-left:auto}

/* 移动导航按钮 */
.nav-toggle{
  display:none;
  align-items:center;
  gap:9px;
  padding:9px 13px;
  border:1px solid var(--edge);
  border-radius:var(--radius);
  font-size:14px;
  font-weight:700;
  color:var(--paper);
  cursor:pointer;
  transition:border-color .16s var(--ease),background-color .16s var(--ease);
}
.nav-toggle:hover{border-color:var(--grid);background:#141C30}
.nav-toggle__bars{position:relative;display:block;width:18px;height:2px;background:var(--gold)}
.nav-toggle__bars::before,
.nav-toggle__bars::after{
  content:"";
  position:absolute;
  left:0;
  width:18px;
  height:2px;
  background:var(--gold);
  transition:transform .16s var(--ease),top .16s var(--ease);
}
.nav-toggle__bars::before{top:-6px}
.nav-toggle__bars::after{top:6px}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars{background:transparent}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before{top:0;transform:rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after{top:0;transform:rotate(-45deg)}

/* 阅读进度轨 */
.progress-rail{height:2px;background:var(--edge);overflow:hidden}
.progress-bar{
  display:block;
  height:100%;
  width:0;
  background:linear-gradient(90deg,var(--brick) 0%,var(--brick-light) 45%,var(--neon) 100%);
  transition:width .12s linear;
}

/* 平板与手机导航 */
@media (max-width:940px){
  .nav-toggle{display:inline-flex}
  .site-nav{
    display:none;
    position:absolute;
    left:0;
    right:0;
    top:100%;
    z-index:90;
    background:var(--panel);
    border-top:1px solid var(--edge);
    border-bottom:1px solid var(--edge);
    box-shadow:var(--shadow-deep);
    padding:8px 0 14px;
  }
  .site-nav[data-open]{display:block}
  .nav-list{
    flex-direction:column;
    align-items:stretch;
    overflow:visible;
    padding-inline:clamp(16px,4vw,40px);
  }
  .nav-link{
    display:block;
    padding:13px 10px;
    border-bottom:1px solid var(--edge);
    border-left:2px solid transparent;
  }
  .nav-link:hover{border-bottom-color:var(--edge);border-left-color:var(--gold)}
  .nav-link[aria-current="page"]{
    border-left-color:var(--brick);
    border-bottom-color:var(--edge);
    box-shadow:none;
  }
}
@media (max-width:600px){
  .brandmark__tag{border-left:0;padding-left:0;flex-basis:100%}
  .meta-strip{gap:6px}
  .header-actions{gap:10px}
  .header-actions .link-quiet{display:none}
  .btn--primary{padding:9px 12px;font-size:13px}
  .nav-toggle__text{display:none}
}

/* =========================================================
   页脚
   ========================================================= */
.site-footer{
  background:var(--black);
  border-top:1px solid var(--edge);
  margin-top:clamp(48px,8vw,120px);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:clamp(20px,3vw,40px);
  padding-block:clamp(32px,4vw,56px);
}
.footer-col{min-width:0}
.footer-brand{
  display:inline-block;
  font-size:20px;
  font-weight:900;
  letter-spacing:.05em;
  color:var(--paper);
}
.footer-brand:hover{color:var(--gold);text-decoration:none}
.footer-line{
  font-size:14px;
  line-height:1.7;
  color:var(--grey);
  margin:10px 0 0;
}
.footer-line--mono{
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.06em;
  color:var(--gold);
}
.footer-title{
  font-family:var(--mono);
  font-size:12px;
  font-weight:600;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--gold);
  margin-bottom:14px;
}
.footer-list li + li{margin-top:9px}
.footer-list a{
  font-size:14px;
  color:var(--paper);
  opacity:.85;
  transition:opacity .16s var(--ease),color .16s var(--ease);
}
.footer-list a:hover{opacity:1;color:var(--neon);text-decoration:none}
.footer-list--meta li{
  font-family:var(--mono);
  font-size:13px;
  line-height:1.7;
  color:var(--grey);
  word-break:break-word;
}
.footer-legal{
  display:flex;
  flex-wrap:wrap;
  gap:8px 20px;
  align-items:center;
  border-top:1px solid var(--edge);
  padding-block:16px 22px;
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.03em;
  color:var(--grey);
}
.footer-legal a{color:var(--grey)}
.footer-legal a:hover{color:var(--neon)}
@media (max-width:900px){
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:560px){
  .footer-grid{grid-template-columns:1fr;gap:26px}
}

/* =========================================================
   无障碍与减弱动效
   ========================================================= */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
  }
  .has-js [data-reveal]{opacity:1;transform:none}
  .btn:hover,.panel--interactive:hover{transform:none}
  .progress-bar{transition:none}
}