/* ==========================================================================
   澳门威斯人站 — 共享站点样式 /assets/site.css
   框架式导航 · 蓝图网格 · 深墨黑与暖金
   ========================================================================== */

/* ---------- 1. 设计变量 ---------- */
:root{
  --ink:#0B0C0E;
  --ink-2:#101216;
  --gold:#C9A45C;
  --gold-light:#E6D3A6;
  --paper:#F4F1EA;
  --smoke:#2A2D31;
  --hair:#3A3E44;
  --celadon:#5F8F7A;
  --coral:#D9705F;
  --graygold:#8C7A55;
  --coolgray:#B8B3A7;

  --font-display:"Noto Serif SC","Source Han Serif SC","Songti SC","STSong","SimSun",serif;
  --font-body:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:"JetBrains Mono","SFMono-Regular",Menlo,Consolas,"Courier New",monospace;

  --maxw:1440px;
  --gutter:clamp(16px,3vw,40px);
  --header-h:64px;
  --ease:cubic-bezier(.2,.7,.3,1);
}

@media (min-width:780px){
  :root{ --header-h:76px; }
}

/* ---------- 2. 重置与基础排版 ---------- */
*,*::before,*::after{ box-sizing:border-box; }

html{
  background:var(--ink);
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
  scroll-padding-top:calc(var(--header-h) + 20px);
}

body{
  margin:0;
  padding-top:var(--header-h);
  background:var(--ink);
  color:var(--paper);
  font-family:var(--font-body);
  font-size:17px;
  font-weight:400;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

img,svg,video{ display:block; max-width:100%; height:auto; }

h1,h2,h3,h4,h5,h6{
  margin:0 0 .55em;
  font-family:var(--font-display);
  font-weight:800;
  line-height:1.16;
  letter-spacing:-.02em;
  color:var(--paper);
}
h1{ font-size:clamp(2.35rem,5.2vw,4.4rem); }
h2{ font-size:clamp(1.65rem,3vw,2.5rem); }
h3{ font-size:clamp(1.15rem,1.8vw,1.5rem); font-weight:700; }
h4{ font-size:1rem; font-weight:700; letter-spacing:0; }

p{ margin:0 0 1em; }
ul,ol{ margin:0 0 1em; padding-left:1.15em; }
li{ margin:0; }
strong,b{ font-weight:700; color:var(--paper); }
small{ font-size:.82em; }

a{ color:var(--gold-light); text-decoration:none; transition:color .2s var(--ease); }
a:hover{ color:#FFFFFF; }

::selection{ background:var(--gold); color:var(--ink); }

:focus-visible{
  outline:2px solid var(--gold);
  outline-offset:3px;
  border-radius:1px;
}

.visually-hidden{
  position:absolute !important;
  width:1px; height:1px;
  margin:-1px; padding:0;
  overflow:hidden;
  clip:rect(0 0 0 0);
  clip-path:inset(50%);
  white-space:nowrap;
  border:0;
}

.skip-link{
  position:absolute;
  left:12px;
  top:-120px;
  z-index:200;
  padding:10px 18px;
  background:var(--gold);
  color:var(--ink);
  font-size:14px;
  font-weight:500;
  letter-spacing:.04em;
  text-decoration:none;
  transition:top .18s var(--ease);
}
.skip-link:focus{ top:12px; color:var(--ink); }

/* ---------- 3. 头部：框架式导航 ---------- */
.site-header{
  position:fixed;
  top:0; left:0; right:0;
  z-index:80;
  background:var(--ink);
  border-bottom:1px solid var(--hair);
  color:var(--paper);
}

.site-header__bar{
  display:flex;
  align-items:center;
  gap:clamp(10px,2vw,30px);
  width:100%;
  max-width:var(--maxw);
  min-height:var(--header-h);
  margin:0 auto;
  padding:0 var(--gutter);
}

.brand{
  display:inline-flex;
  align-items:center;
  gap:11px;
  flex:0 0 auto;
  color:var(--paper);
  text-decoration:none;
}
.brand__mark{
  display:grid;
  place-items:center;
  width:26px; height:26px;
  border:1px solid var(--gold);
  flex:0 0 auto;
}
.brand__mark-dot{
  display:block;
  width:6px; height:6px;
  background:var(--gold);
}
.brand__text{ display:block; }
.brand__name{
  display:block;
  font-family:var(--font-display);
  font-size:16px;
  font-weight:700;
  line-height:1.2;
  letter-spacing:.05em;
  color:var(--paper);
}
.brand__sub{
  display:block;
  margin-top:2px;
  font-family:var(--font-mono);
  font-size:9.5px;
  line-height:1.2;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--graygold);
}

.frame-nav{
  flex:1 1 auto;
  min-width:0;
}
.frame-nav__list{
  display:flex;
  align-items:center;
  gap:clamp(4px,1.4vw,22px);
  margin:0;
  padding:0;
  list-style:none;
}
.frame-nav__item{ margin:0; }
.frame-nav__link{
  position:relative;
  display:inline-flex;
  align-items:baseline;
  gap:5px;
  padding:10px 2px;
  font-size:14px;
  line-height:1.3;
  color:var(--coolgray);
  text-decoration:none;
  white-space:nowrap;
  transition:color .18s var(--ease);
}
.frame-nav__link:hover{ color:var(--gold-light); }
.frame-nav__link[aria-current="page"]{ color:var(--paper); }
.frame-nav__link[aria-current="page"]::after{
  content:"";
  position:absolute;
  left:0; right:0; bottom:2px;
  height:2px;
  background:var(--gold);
}
.frame-nav__index{
  font-family:var(--font-mono);
  font-size:9.5px;
  letter-spacing:.1em;
  color:var(--graygold);
}
.frame-nav__link[aria-current="page"] .frame-nav__index{ color:var(--gold); }

.quick-rail{
  display:flex;
  align-items:center;
  gap:7px;
  flex:0 0 auto;
}
.quick-rail__label{
  font-family:var(--font-mono);
  font-size:9.5px;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--graygold);
}
.quick-link{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:7px 12px;
  border:1px solid var(--hair);
  background:rgba(201,164,92,.04);
  color:var(--coolgray);
  font-size:12.5px;
  line-height:1.3;
  letter-spacing:.03em;
  text-decoration:none;
  white-space:nowrap;
  transition:color .18s var(--ease),border-color .18s var(--ease),background .18s var(--ease);
}
.quick-link:hover{
  color:var(--gold-light);
  border-color:var(--gold);
  background:rgba(201,164,92,.12);
}
.quick-link:first-of-type{
  border-color:rgba(201,164,92,.55);
  color:var(--gold-light);
}

.nav-toggle{
  display:none;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
  width:44px; height:44px;
  margin-left:auto;
  padding:0;
  border:1px solid var(--hair);
  background:transparent;
  color:var(--paper);
  cursor:pointer;
  transition:border-color .18s var(--ease);
}
.nav-toggle:hover{ border-color:var(--gold); }
.nav-toggle__bar{
  display:block;
  width:18px;
  height:1.5px;
  background:var(--paper);
  transition:transform .2s var(--ease),opacity .2s var(--ease),background .2s var(--ease);
}
.site-header[data-open] .nav-toggle__bar{ background:var(--gold); }
.site-header[data-open] .nav-toggle__bar:first-child{ transform:translateY(3.25px) rotate(45deg); }
.site-header[data-open] .nav-toggle__bar:nth-child(2){ opacity:0; }

.progress{
  position:absolute;
  left:0; right:0; bottom:0;
  height:2px;
  background:transparent;
  pointer-events:none;
}
.progress__bar{
  display:block;
  width:0;
  height:100%;
  background:linear-gradient(90deg,rgba(201,164,92,.55),var(--gold));
}

/* ---------- 4. 页脚：图签栏 ---------- */
.site-footer{
  position:relative;
  padding:clamp(44px,6vw,80px) 0 clamp(22px,3vw,34px);
  background:var(--ink);
  border-top:1px solid var(--hair);
  color:var(--coolgray);
  font-size:14px;
}
.site-footer::before{
  content:"";
  position:absolute;
  top:-1px; left:0;
  width:clamp(120px,22vw,300px);
  height:1px;
  background:var(--gold);
}

.site-footer__top{
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:clamp(28px,4vw,60px);
  width:100%;
  max-width:var(--maxw);
  margin:0 auto;
  padding:0 var(--gutter);
}
@media (min-width:820px){
  .site-footer__top{ grid-template-columns:minmax(220px,330px) minmax(0,1fr); }
}

.site-footer__brand-name{
  margin:0 0 10px;
  font-family:var(--font-display);
  font-size:clamp(1.7rem,3vw,2.4rem);
  font-weight:800;
  line-height:1.15;
  letter-spacing:-.02em;
  color:var(--paper);
}
.site-footer__brand-note{
  max-width:32ch;
  margin:0;
  font-size:13px;
  line-height:1.8;
  color:var(--graygold);
}

.site-footer__cols{
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:clamp(24px,3vw,44px);
}
@media (min-width:560px){
  .site-footer__cols{ grid-template-columns:repeat(2,minmax(0,1fr)); }
}

.site-footer__col-title{
  display:flex;
  align-items:center;
  gap:8px;
  margin:0 0 14px;
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:500;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--gold);
}
.site-footer__col-title::before{
  content:"";
  width:14px;
  height:1px;
  background:var(--gold);
}

.site-footer__list{
  margin:0;
  padding:0;
  list-style:none;
}
.site-footer__link{
  display:inline-block;
  padding:5px 0;
  color:var(--coolgray);
  font-size:14px;
  text-decoration:none;
  border-bottom:1px solid transparent;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.site-footer__link:hover{
  color:var(--gold-light);
  border-bottom-color:rgba(201,164,92,.6);
}

.site-footer__contact{
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:8px 40px;
  width:100%;
  max-width:var(--maxw);
  margin:clamp(30px,4vw,52px) auto 0;
  padding:clamp(20px,3vw,28px) var(--gutter) 0;
  border-top:1px solid var(--hair);
  list-style:none;
  font-family:var(--font-mono);
  font-size:12.5px;
  line-height:1.8;
  letter-spacing:.02em;
  color:var(--graygold);
}
@media (min-width:760px){
  .site-footer__contact{ grid-template-columns:repeat(2,minmax(0,1fr)); }
}
.site-footer__contact-line{ margin:0; }

.site-footer__meta{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  justify-content:space-between;
  gap:8px 28px;
  width:100%;
  max-width:var(--maxw);
  margin:clamp(22px,3vw,36px) auto 0;
  padding:clamp(14px,2.2vw,20px) var(--gutter) 0;
  border-top:1px solid var(--hair);
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.1em;
  color:var(--graygold);
}
.site-footer__legal{ margin:0; }
.site-footer__note{ margin:0; color:var(--coolgray); opacity:.7; }

/* ---------- 5. 通用容器与网格 ---------- */
.wrap{
  width:100%;
  max-width:var(--maxw);
  margin-inline:auto;
  padding-inline:var(--gutter);
}

.grid{
  display:grid;
  gap:clamp(16px,2.4vw,32px);
}
.grid--2{ grid-template-columns:repeat(auto-fit,minmax(280px,1fr)); }
.grid--3{ grid-template-columns:repeat(auto-fit,minmax(230px,1fr)); }

.divider{
  height:1px;
  margin:clamp(28px,4vw,48px) 0;
  border:0;
  background:var(--hair);
}

.eyebrow{
  display:block;
  margin:0 0 10px;
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:500;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--gold);
}

/* ---------- 6. 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding:13px 24px;
  border:1px solid transparent;
  background:transparent;
  color:var(--paper);
  font-family:var(--font-body);
  font-size:14.5px;
  font-weight:500;
  line-height:1.3;
  letter-spacing:.05em;
  text-decoration:none;
  cursor:pointer;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn--solid{ background:var(--gold); color:var(--ink); }
.btn--solid:hover{ background:var(--gold-light); color:var(--ink); }
.btn--ghost{ border-color:var(--hair); color:var(--paper); }
.btn--ghost:hover{ border-color:var(--gold); color:var(--gold-light); }
.btn--line{
  padding:4px 0;
  border:0;
  border-bottom:1px solid var(--gold);
  color:var(--gold-light);
  letter-spacing:.04em;
}
.btn--line:hover{ color:var(--paper); border-bottom-color:var(--paper); }

/* ---------- 7. 标签 ---------- */
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:3px 9px;
  border:1px solid var(--hair);
  background:rgba(11,12,14,.3);
  color:var(--coolgray);
  font-family:var(--font-mono);
  font-size:10.5px;
  line-height:1.6;
  letter-spacing:.12em;
  text-transform:uppercase;
  white-space:nowrap;
}
.tag--gold{ color:var(--gold-light); border-color:rgba(201,164,92,.55); }
.tag--celadon{ color:#9BC4AF; border-color:rgba(95,143,122,.65); }
.tag--coral{ color:#EC9C89; border-color:rgba(217,112,95,.65); }

/* ---------- 8. 卡片 ---------- */
.card{
  position:relative;
  display:flex;
  flex-direction:column;
  padding:clamp(18px,2.4vw,28px);
  border:1px solid var(--hair);
  background:var(--smoke);
  color:var(--paper);
  transition:border-color .2s var(--ease),transform .2s var(--ease),background .2s var(--ease);
}
.card:hover{
  border-color:rgba(201,164,92,.55);
  background:#2E3237;
  transform:translateY(-2px);
}
.card__index{
  display:block;
  margin-bottom:10px;
  font-family:var(--font-mono);
  font-size:10.5px;
  letter-spacing:.2em;
  color:var(--graygold);
}
.card__title{
  margin:0 0 8px;
  font-family:var(--font-display);
  font-size:1.15rem;
  font-weight:700;
  line-height:1.4;
  letter-spacing:-.01em;
  color:var(--paper);
}
.card__meta{
  margin:auto 0 0;
  padding-top:12px;
  font-size:12.5px;
  line-height:1.7;
  color:var(--coolgray);
}

/* ---------- 9. 面包屑 ---------- */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  margin:0;
  padding:0;
  list-style:none;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--graygold);
}
.breadcrumb__item{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin:0;
}
.breadcrumb__link{
  color:var(--coolgray);
  text-decoration:none;
}
.breadcrumb__link:hover{ color:var(--gold-light); }
.breadcrumb__sep{ color:var(--hair); }

/* ---------- 10. 图片容器基础规则 ---------- */
.media-frame{
  position:relative;
  display:block;
  overflow:hidden;
  aspect-ratio:16 / 9;
  border:1px solid var(--hair);
  background:
    linear-gradient(140deg,rgba(201,164,92,.18) 0%,rgba(42,45,49,.92) 55%,rgba(11,12,14,.96) 100%);
}
.media-frame--4x3{ aspect-ratio:4 / 3; }
.media-frame--1x1{ aspect-ratio:1 / 1; }
.media-frame--21x9{ aspect-ratio:21 / 9; }

.media-frame__img{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
  display:block;
}

.media-frame__caption{
  position:absolute;
  left:12px;
  bottom:12px;
  padding:4px 9px;
  background:rgba(11,12,14,.78);
  color:var(--gold-light);
  font-family:var(--font-mono);
  font-size:10.5px;
  letter-spacing:.14em;
  text-transform:uppercase;
}

/* ---------- 11. 阅读区与正文 ---------- */
.paper{
  background:var(--paper);
  color:#1A1B1E;
}
.paper h1,.paper h2,.paper h3,.paper h4{ color:#0B0C0E; }
.paper a{ color:#7A6334; }
.paper a:hover{ color:#0B0C0E; }
.paper .eyebrow{ color:#8A6F35; }
.paper .divider{ background:rgba(11,12,14,.14); }
.paper .breadcrumb,
.paper .breadcrumb__link{ color:#6E6A60; }
.paper .breadcrumb__link:hover{ color:#0B0C0E; }

.prose{
  max-width:68ch;
  font-size:1.0625rem;
  line-height:1.85;
}
.prose h2{ margin-top:2.1em; }
.prose h3{ margin-top:1.7em; }
.prose ul,.prose ol{ padding-left:1.25em; }
.prose li{ margin-bottom:.4em; }
.prose > :last-child{ margin-bottom:0; }

/* ---------- 12. 滚动显现 ---------- */
html.js .reveal{
  opacity:0;
  transform:translateY(10px);
  transition:opacity .44s var(--ease),transform .44s var(--ease);
}
html.js .reveal.is-in{
  opacity:1;
  transform:none;
}

/* ---------- 13. 响应式 ---------- */
@media (max-width:1180px){
  .quick-rail__label{ display:none; }
  .quick-link{ padding:6px 10px; font-size:12px; }
  .frame-nav__link{ font-size:13.5px; }
}

@media (max-width:1080px){
  .frame-nav__index{ display:none; }
  .frame-nav__list{ gap:clamp(4px,1.2vw,16px); }
}

@media (max-width:900px){
  .nav-toggle{ display:flex; }

  .frame-nav{
    position:fixed;
    top:var(--header-h);
    left:0; right:0; bottom:0;
    z-index:85;
    padding:22px var(--gutter) 110px;
    background:var(--ink-2);
    border-top:1px solid var(--hair);
    overflow-y:auto;
    opacity:0;
    visibility:hidden;
    transform:translateY(-8px);
    transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s var(--ease);
  }
  .site-header[data-open] .frame-nav{
    opacity:1;
    visibility:visible;
    transform:none;
  }

  .frame-nav__list{
    flex-direction:column;
    align-items:stretch;
    gap:0;
  }
  .frame-nav__item{ border-bottom:1px solid var(--hair); }
  .frame-nav__link{
    display:flex;
    align-items:baseline;
    justify-content:space-between;
    padding:18px 0 16px;
    font-family:var(--font-display);
    font-size:20px;
    font-weight:700;
    color:var(--paper);
  }
  .frame-nav__index{ display:inline; font-size:11px; color:var(--gold); }
  .frame-nav__link[aria-current="page"]::after{
    left:0; right:auto;
    bottom:10px;
    width:38px;
  }

  .quick-rail{
    position:fixed;
    left:0; right:0; bottom:0;
    z-index:90;
    justify-content:space-between;
    gap:6px;
    padding:8px 10px calc(8px + env(safe-area-inset-bottom));
    background:var(--ink);
    border-top:1px solid var(--hair);
  }
  .quick-link{ flex:1 1 0; padding:11px 6px; font-size:13px; }

  .brand__sub{ display:none; }

  body{ padding-bottom:68px; }

  .site-footer__contact{ font-size:12px; }
}

@media (max-width:520px){
  .brand__name{ font-size:15px; }
  h1{ font-size:clamp(2rem,9vw,2.6rem); }
  .site-footer__meta{ font-size:11px; letter-spacing:.06em; }
}

/* ---------- 14. 动效降级 ---------- */
@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;
  }

  html.js .reveal{
    opacity:1;
    transform:none;
  }

  .card:hover{ transform:none; }
  .progress__bar{ transition:none; }
}