/* ============================================================
   天天娱乐会馆 · 共享样式表 /assets/site.css
   门厅导视系统：夜蓝底 + 暖金导视线 + 洋红定位点
   ============================================================ */

/* ---------- 1. Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
  scroll-padding-top:124px;
}
body,h1,h2,h3,h4,h5,h6,p,ul,ol,figure,blockquote,dl,dd{margin:0}
ul,ol{padding:0;list-style:none}
img,svg,video,canvas{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;padding:0;cursor:pointer}
::selection{background:#F2B84B;color:#0A0E14}

/* ---------- 2. 变量 ---------- */
:root{
  --ink-900:#071421;
  --ink-950:#040C14;
  --ink-1000:#0A0E14;
  --mist:#DCEBF5;
  --steel:#5E7A90;
  --frost:#A9C1D4;
  --gold:#F2B84B;
  --magenta:#FF3D81;
  --celadon:#7BD3C4;
  --paper:#F7F9FB;
  --amber:#D98A2B;

  --line:rgba(169,193,212,.20);
  --line-strong:rgba(169,193,212,.42);
  --gold-line:rgba(242,184,75,.45);
  --magenta-line:rgba(255,61,129,.45);

  --font-head:"Noto Sans SC","Source Han Sans SC","HarmonyOS Sans SC",sans-serif;
  --font-body:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-num:"Barlow Condensed","DIN Alternate","Noto Sans SC",sans-serif;

  --shell:1240px;
  --gutter:clamp(18px,4vw,48px);
  --gap:clamp(16px,2.4vw,32px);
  --radius:0px;
}

/* ---------- 3. 基础排版 ---------- */
body{
  min-height:100vh;
  background-color:#071421;
  background-image:
    linear-gradient(180deg,rgba(7,20,33,0) 0%,rgba(4,12,20,.55) 100%),
    repeating-linear-gradient(90deg,rgba(169,193,212,.05) 0 1px,transparent 1px 120px);
  color:var(--mist);
  font-family:var(--font-body);
  font-size:1rem;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,h5,h6{
  font-family:var(--font-head);
  font-weight:800;
  letter-spacing:.05em;
  line-height:1.16;
  color:var(--paper);
}
h1{font-size:clamp(2.2rem,4.6vw,4.2rem)}
h2{font-size:clamp(1.4rem,2.4vw,2.2rem)}
h3{font-size:clamp(1.1rem,1.6vw,1.35rem)}
h4{font-size:1rem;letter-spacing:.08em}
p{max-width:72ch}

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

/* ---------- 4. 通用容器与网格 ---------- */
.shell{
  width:100%;
  max-width:var(--shell);
  margin-inline:auto;
  padding-inline:var(--gutter);
}
.section{
  padding-block:clamp(48px,7vw,96px);
}
.stack{
  display:grid;
  gap:var(--gap);
}
.grid-2{
  display:grid;
  gap:var(--gap);
  grid-template-columns:repeat(auto-fit,minmax(280px,1fr));
}
.grid-3{
  display:grid;
  gap:var(--gap);
  grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
}

/* ---------- 5. 通用按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.5rem;
  padding:.62rem 1.05rem;
  border:1px solid transparent;
  border-radius:var(--radius);
  font-family:var(--font-head);
  font-size:.8125rem;
  font-weight:700;
  letter-spacing:.1em;
  line-height:1.2;
  white-space:nowrap;
  cursor:pointer;
  transition:background-color .22s ease,color .22s ease,border-color .22s ease;
}
.btn--gold{
  background:var(--gold);
  border-color:var(--gold);
  color:var(--ink-1000);
}
.btn--gold:hover{
  background:var(--amber);
  border-color:var(--amber);
}
.btn--ghost{
  background:transparent;
  border-color:var(--line-strong);
  color:var(--frost);
}
.btn--ghost:hover{
  border-color:var(--gold);
  color:var(--gold);
}

/* ---------- 6. 跳转链接 ---------- */
.skip-link{
  position:fixed;
  top:0;
  left:0;
  z-index:200;
  padding:.7rem 1.1rem;
  background:var(--gold);
  color:var(--ink-1000);
  font-family:var(--font-head);
  font-size:.8125rem;
  font-weight:700;
  letter-spacing:.1em;
  transform:translateY(-130%);
  transition:transform .2s ease;
}
.skip-link:focus,
.skip-link:focus-visible{
  transform:translateY(0);
  outline:2px solid var(--paper);
  outline-offset:2px;
}

/* ---------- 7. 头部：双层门牌带 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  --progress:0;
  background:rgba(7,20,33,.95);
  border-bottom:1px solid var(--line);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
}
.scroll-progress{
  position:absolute;
  left:0;
  right:0;
  bottom:-1px;
  height:2px;
  z-index:2;
  background:linear-gradient(90deg,var(--gold) 0%,var(--magenta) 100%);
  transform:scaleX(var(--progress));
  transform-origin:0 50%;
  pointer-events:none;
}

/* 上层：品牌说明 */
.header-utility{
  border-bottom:1px solid var(--line);
}
.header-utility__inner{
  display:flex;
  align-items:center;
  gap:clamp(10px,2vw,26px);
  min-height:56px;
  padding-block:10px;
}
.brand-line{
  display:flex;
  align-items:center;
  gap:.5rem;
  flex:0 0 auto;
  font-family:var(--font-head);
  font-size:.9375rem;
  font-weight:800;
  letter-spacing:.14em;
  color:var(--paper);
  white-space:nowrap;
}
.brand-line__mark{
  display:block;
  width:3px;
  height:16px;
  background:var(--gold);
}
.brand-line__name{
  color:var(--paper);
}
.brand-line__sep{
  color:var(--steel);
  font-weight:400;
  letter-spacing:0;
}
.brand-line__region{
  font-size:.8125rem;
  font-weight:700;
  letter-spacing:.18em;
  color:var(--gold);
}
.brand-descriptor{
  min-width:0;
  padding-left:clamp(10px,1.6vw,22px);
  border-left:1px solid var(--line);
  font-size:.8125rem;
  letter-spacing:.14em;
  color:var(--steel);
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.header-actions{
  display:flex;
  align-items:center;
  gap:.6rem;
  margin-left:auto;
}
.header-actions__ghost{
  display:inline-flex;
}

/* 移动端汉堡按钮 */
.nav-toggle{
  display:none;
  align-items:center;
  gap:.55rem;
  padding:.55rem .7rem;
  border:1px solid var(--line-strong);
  border-radius:var(--radius);
  font-family:var(--font-head);
  font-size:.8125rem;
  font-weight:700;
  letter-spacing:.14em;
  color:var(--frost);
  transition:color .2s ease,border-color .2s ease;
}
.nav-toggle:hover{
  color:var(--gold);
  border-color:var(--gold);
}
.nav-toggle__bars{
  display:grid;
  gap:4px;
  width:16px;
}
.nav-toggle__bars span{
  display:block;
  height:2px;
  background:currentColor;
  transition:transform .25s ease,opacity .2s ease;
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(1){
  transform:translateY(6px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(2){
  opacity:0;
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(3){
  transform:translateY(-6px) rotate(-45deg);
}
.nav-toggle__text{
  line-height:1;
}

/* 下层：栏目导视轨 */
.header-nav{
  position:relative;
}
.site-nav{
  position:relative;
}
.nav-list{
  display:flex;
  align-items:stretch;
  gap:clamp(6px,1.8vw,28px);
  overflow-x:auto;
  scrollbar-width:none;
  -ms-overflow-style:none;
}
.nav-list::-webkit-scrollbar{display:none}
.nav-list__item{flex:0 0 auto}
.nav-list__item a{
  position:relative;
  display:block;
  padding:14px 2px 15px;
  font-family:var(--font-head);
  font-size:.875rem;
  font-weight:600;
  letter-spacing:.14em;
  color:var(--frost);
  transition:color .2s ease;
}
.nav-list__item a::after{
  content:"";
  position:absolute;
  left:0;
  bottom:0;
  width:100%;
  height:2px;
  background:var(--gold);
  transform:scaleX(0);
  transform-origin:0 50%;
  transition:transform .26s ease;
}
.nav-list__item a:hover{color:var(--paper)}
.nav-list__item a:hover::after{transform:scaleX(1)}
.nav-list__item a[aria-current="page"]{color:var(--gold)}
.nav-list__item a[aria-current="page"]::after{transform:scaleX(1)}

/* ---------- 8. 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:clamp(56px,8vw,110px);
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,#061019 0%,#030A11 100%);
  color:var(--frost);
}
.site-footer::before{
  content:"";
  position:absolute;
  top:-1px;
  left:0;
  width:clamp(80px,18vw,220px);
  height:2px;
  background:var(--gold);
}
.footer-grid{
  display:grid;
  grid-template-columns:minmax(0,1.15fr) minmax(0,2fr);
  gap:clamp(28px,5vw,72px);
  padding-block:clamp(40px,6vw,72px) clamp(28px,4vw,48px);
}
.footer-brand__wordmark{
  font-family:var(--font-head);
  font-size:clamp(1.5rem,3vw,2.2rem);
  font-weight:800;
  letter-spacing:.14em;
  color:var(--paper);
}
.footer-brand__region{
  margin-top:.55rem;
  font-size:.75rem;
  letter-spacing:.2em;
  color:var(--steel);
}
.footer-brand__note{
  margin-top:1.1rem;
  max-width:34ch;
  font-size:.875rem;
  line-height:1.8;
  color:var(--steel);
}
.footer-brand__chip{
  display:inline-flex;
  align-items:center;
  gap:.5rem;
  margin-top:1.25rem;
  padding:.55rem .9rem;
  border:1px solid var(--gold-line);
  border-left:3px solid var(--gold);
  font-family:var(--font-head);
  font-size:.8125rem;
  font-weight:700;
  letter-spacing:.12em;
  color:var(--gold);
  transition:color .2s ease,border-color .2s ease;
}
.footer-brand__chip:hover{
  color:var(--magenta);
  border-color:var(--magenta-line);
  border-left-color:var(--magenta);
}
.footer-links{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:clamp(20px,3vw,40px);
}
.footer-col__title{
  margin-bottom:.85rem;
  padding-bottom:.7rem;
  border-bottom:1px solid var(--line);
  font-family:var(--font-head);
  font-size:.75rem;
  font-weight:700;
  letter-spacing:.2em;
  color:var(--steel);
}
.footer-list{
  display:grid;
  gap:.55rem;
  font-size:.875rem;
}
.footer-list a{
  color:var(--frost);
  transition:color .2s ease;
}
.footer-list a:hover{color:var(--gold)}
.footer-list--plain{gap:.85rem}
.footer-list--plain li{
  display:grid;
  gap:.1rem;
  line-height:1.6;
  color:var(--frost);
}
.footer-key{
  font-size:.6875rem;
  letter-spacing:.2em;
  color:var(--steel);
}
.footer-mail{
  word-break:break-all;
  color:var(--frost);
}
.footer-base{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:.4rem 1.5rem;
  padding-block:18px clamp(58px,7vw,76px);
  border-top:1px solid var(--line);
  font-size:.75rem;
  letter-spacing:.1em;
  color:var(--steel);
}
.footer-base__icp{margin-left:auto}

/* 悬浮客服短路径 */
.support-bar{
  position:fixed;
  left:clamp(12px,3vw,24px);
  bottom:clamp(12px,3vw,24px);
  z-index:90;
  display:inline-flex;
  align-items:center;
  gap:.55rem;
  padding:.6rem .85rem;
  background:rgba(10,14,20,.94);
  border:1px solid var(--gold-line);
  border-left:3px solid var(--gold);
  border-radius:var(--radius);
  font-family:var(--font-head);
  font-size:.8125rem;
  font-weight:600;
  letter-spacing:.12em;
  color:var(--mist);
  -webkit-backdrop-filter:blur(6px);
  backdrop-filter:blur(6px);
  transition:opacity .28s ease,transform .28s ease,color .2s ease,border-color .2s ease;
}
.support-bar:hover{
  border-color:var(--magenta-line);
  border-left-color:var(--magenta);
  color:var(--paper);
}
.support-bar__tag{
  padding:.1rem .4rem;
  background:var(--magenta);
  color:#fff;
  font-size:.6875rem;
  letter-spacing:.16em;
  line-height:1.5;
}
.support-bar__arrow{
  color:var(--gold);
}
.support-bar.is-quiet{
  opacity:0;
  transform:translateY(14px);
  pointer-events:none;
}

/* 返回顶部 */
.to-top{
  position:fixed;
  right:clamp(12px,3vw,24px);
  bottom:clamp(12px,3vw,24px);
  z-index:90;
  display:inline-flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:2px;
  width:52px;
  height:52px;
  background:var(--ink-950);
  border:1px solid var(--line-strong);
  border-radius:var(--radius);
  font-family:var(--font-head);
  font-size:.625rem;
  letter-spacing:.14em;
  color:var(--frost);
  opacity:0;
  visibility:hidden;
  transform:translateY(10px);
  transition:opacity .26s ease,transform .26s ease,visibility .26s ease,color .2s ease,border-color .2s ease;
}
.to-top.is-visible{
  opacity:1;
  visibility:visible;
  transform:none;
}
.to-top:hover{
  color:var(--gold);
  border-color:var(--gold);
}
.to-top__arrow{
  font-size:1rem;
  line-height:1;
}
.to-top__text{line-height:1}

/* ---------- 9. 通用内容组件 ---------- */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:.5rem;
  padding-block:18px;
  font-size:.75rem;
  letter-spacing:.1em;
  color:var(--steel);
}
.breadcrumb li{
  display:flex;
  align-items:center;
  gap:.5rem;
}
.breadcrumb li+li::before{
  content:"/";
  color:var(--steel);
  opacity:.7;
}
.breadcrumb a{
  color:var(--frost);
  transition:color .2s ease;
}
.breadcrumb a:hover{color:var(--gold)}
.breadcrumb [aria-current="page"]{color:var(--gold)}

.prose{
  max-width:68ch;
  font-size:1.0625rem;
  line-height:1.8;
  color:var(--frost);
}
.prose p+p{margin-top:1.05em}
.prose h2{margin-top:2.2em;margin-bottom:.7em}
.prose h3{margin-top:1.8em;margin-bottom:.5em}
.prose ul{
  display:grid;
  gap:.55em;
  margin-top:1em;
  padding-left:1.15em;
}
.prose ul li{position:relative}
.prose ul li::before{
  content:"";
  position:absolute;
  left:-1.15em;
  top:.72em;
  width:9px;
  height:1px;
  background:var(--gold);
}
.prose a{
  color:var(--gold);
  text-decoration:underline;
  text-underline-offset:.25em;
  text-decoration-thickness:1px;
  text-decoration-color:rgba(242,184,75,.45);
}
.prose a:hover{text-decoration-color:var(--gold)}

.tag{
  display:inline-block;
  padding:.15rem .5rem;
  border:1px solid var(--line-strong);
  border-radius:var(--radius);
  font-family:var(--font-head);
  font-size:.6875rem;
  font-weight:700;
  letter-spacing:.16em;
  line-height:1.6;
  color:var(--frost);
}
.tag--gold{
  color:var(--gold);
  border-color:var(--gold-line);
}
.tag--magenta{
  color:var(--magenta);
  border-color:var(--magenta-line);
}

.num{
  font-family:var(--font-num);
  font-weight:600;
  letter-spacing:.02em;
  font-variant-numeric:tabular-nums;
}

/* ---------- 10. 图片容器基础规则 ---------- */
.media{
  position:relative;
  display:block;
  overflow:hidden;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:
    linear-gradient(135deg,rgba(94,122,144,.20) 0%,rgba(7,20,33,.94) 70%),
    var(--ink-950);
}
.media img{
  width:100%;
  height:100%;
  object-fit:cover;
}
.media::before{
  content:"";
  position:absolute;
  top:0;
  left:0;
  z-index:2;
  width:34px;
  height:2px;
  background:var(--gold);
}
.media::after{
  content:"";
  position:absolute;
  inset:0;
  z-index:1;
  pointer-events:none;
  background:linear-gradient(180deg,rgba(7,20,33,0) 45%,rgba(7,20,33,.62) 100%);
}
.media--16x9{aspect-ratio:16/9}
.media--4x3{aspect-ratio:4/3}
.media--4x5{aspect-ratio:4/5}
.media--1x1{aspect-ratio:1/1}
.media--wide{aspect-ratio:21/9}
@supports not (aspect-ratio:1/1){
  .media{min-height:220px}
}

/* ---------- 11. 平板 ---------- */
@media (max-width:1080px){
  .header-actions__ghost{display:none}
  .footer-grid{
    grid-template-columns:1fr;
    gap:clamp(28px,5vw,48px);
  }
}

/* ---------- 12. 移动端 ---------- */
@media (max-width:900px){
  html{scroll-padding-top:108px}
  .brand-descriptor{display:none}
  .nav-toggle{display:inline-flex}
  .header-utility__inner{min-height:52px;gap:.55rem}
  .brand-line{letter-spacing:.1em;font-size:.875rem}
  .header-actions{gap:.45rem}

  .site-nav{
    position:absolute;
    top:100%;
    left:0;
    right:0;
    padding:4px var(--gutter) 16px;
    background:rgba(4,12,20,.98);
    border-bottom:1px solid var(--line);
    max-height:0;
    overflow:hidden;
    visibility:hidden;
    transition:max-height .34s ease,visibility .34s ease;
  }
  .site-nav[data-open]{
    max-height:min(72vh,540px);
    overflow-y:auto;
    visibility:visible;
  }
  .nav-list{
    flex-direction:column;
    gap:0;
    overflow:visible;
  }
  .nav-list__item a{
    padding:14px 0;
    border-bottom:1px solid var(--line);
    font-size:.9375rem;
  }
  .nav-list__item a::after{display:none}
  .nav-list__item a[aria-current="page"]{color:var(--gold)}
  .nav-list__item a[aria-current="page"]::before{
    content:"";
    position:absolute;
    left:-14px;
    top:50%;
    width:6px;
    height:6px;
    background:var(--gold);
    transform:translateY(-50%) rotate(45deg);
  }

  .footer-links{
    grid-template-columns:repeat(2,minmax(0,1fr));
  }
  .footer-col--contact{grid-column:1 / -1}
  .footer-base__icp{margin-left:0}
}

@media (max-width:560px){
  .footer-links{grid-template-columns:1fr}
  .support-bar{
    padding:.5rem .65rem;
    font-size:.75rem;
    letter-spacing:.08em;
  }
  .to-top{width:46px;height:46px}
}

@media (max-width:400px){
  .support-bar__tag{display:none}
  .support-bar__text{letter-spacing:.06em}
}

/* ---------- 13. 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;
    scroll-behavior:auto !important;
  }
}