/* ============================================================
   777老虎游 · 共享站点样式 /assets/site.css
   复古街机厅 × 霓虹夜场 × 机械仪表盘
   ============================================================ */

:root{
  --ink-900:#0B1F1A;
  --ink-800:#0E2822;
  --panel:#123C32;
  --panel-soft:#17473B;
  --red:#C21E2E;
  --red-signal:#E63B2E;
  --gold:#D6A84B;
  --gold-soft:rgba(214,168,75,.9);
  --blue:#2E7CF6;
  --blue-soft:#8BB8FF;
  --paper:#F4E9D8;
  --paper-2:#FBF7EF;
  --slate:#263238;
  --wine:#6E1F2A;
  --cream:#F7F1E3;
  --link:#1B58C4;
  --line-gold:rgba(214,168,75,.28);
  --shadow:0 18px 44px rgba(0,0,0,.38);
  --r-lg:22px;
  --r-md:14px;
  --r-sm:10px;
  --shell:1200px;
  --font-display:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-body:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:"IBM Plex Mono","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",Georgia,serif;
}

/* ---------- 基础重置 ---------- */
*,*::before,*::after{box-sizing:border-box}

html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
  scroll-padding-top:8.5rem;
}

body{
  margin:0;
  font-family:var(--font-body);
  font-size:1rem;
  line-height:1.75;
  color:var(--slate);
  background-color:var(--paper);
  background-image:
    radial-gradient(circle at 6% -8%, rgba(110,31,42,.10), transparent 44%),
    radial-gradient(circle at 96% 6%, rgba(11,31,26,.10), transparent 40%);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

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

h1,h2,h3,h4,h5,h6{
  margin:0;
  font-family:var(--font-display);
  font-weight:900;
  line-height:1.18;
  letter-spacing:-.012em;
  text-wrap:balance;
}
h1{font-size:clamp(2.4rem,6vw,5rem)}
h2{font-size:clamp(1.6rem,3vw,2.6rem)}
h3{font-size:clamp(1.15rem,1.8vw,1.45rem)}

p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}

a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0}
::selection{background:var(--gold);color:#231608}

:focus-visible{
  outline:2px solid var(--blue-soft);
  outline-offset:3px;
  border-radius:6px;
}

#main-content{scroll-margin-top:9rem}

/* ---------- 容器与工具 ---------- */
.shell{
  width:min(100% - 2.4rem, var(--shell));
  margin-inline:auto;
}
@media (min-width:1024px){
  .shell{width:min(100% - 4rem, var(--shell))}
}

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

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

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:.55rem;
  font-family:var(--font-mono);
  font-size:.74rem;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--gold);
}
.eyebrow::before{
  content:"";
  width:22px;height:2px;
  border-radius:2px;
  background:currentColor;
}

.tag{
  display:inline-flex;
  align-items:center;
  gap:.4rem;
  padding:.18rem .65rem;
  border-radius:999px;
  font-family:var(--font-mono);
  font-size:.74rem;
  letter-spacing:.06em;
  color:var(--gold);
  background:rgba(214,168,75,.1);
  border:1px solid rgba(214,168,75,.4);
}

/* ---------- 通用按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.5rem;
  min-height:44px;
  padding:.6rem 1.15rem;
  border-radius:999px;
  border:1px solid transparent;
  font-family:var(--font-body);
  font-size:.92rem;
  font-weight:800;
  letter-spacing:.01em;
  cursor:pointer;
  transition:transform .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.btn-signal{
  background:linear-gradient(180deg,#D32435 0%,var(--red) 100%);
  color:#fff;
  border-color:rgba(255,255,255,.18);
  box-shadow:0 4px 0 rgba(0,0,0,.34);
}
.btn-signal:hover{
  background:linear-gradient(180deg,#E63B2E 0%,#C21E2E 100%);
  transform:translateY(-1px);
}
.btn-signal:active{
  transform:translateY(2px);
  box-shadow:0 1px 0 rgba(0,0,0,.34);
}
.btn-ghost{
  background:transparent;
  color:var(--gold);
  border-color:rgba(214,168,75,.5);
}
.btn-ghost:hover{
  background:rgba(214,168,75,.14);
  border-color:var(--gold);
}
.btn-paper{
  background:var(--paper-2);
  color:var(--slate);
  border-color:rgba(38,50,56,.18);
}
.btn-paper:hover{
  background:#fff;
  transform:translateY(-1px);
}

/* ---------- 页头 · 控制台铭牌 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  isolation:isolate;
  color:var(--cream);
  background:linear-gradient(180deg,#0B1F1A 0%,#0D2822 64%,#0B1F1A 100%);
  border-bottom:1px solid var(--line-gold);
  transition:box-shadow .22s ease;
}
.site-header::before{
  content:"";
  position:absolute;
  inset:0;
  z-index:-1;
  pointer-events:none;
  background-image:repeating-linear-gradient(180deg, rgba(46,124,246,.06) 0 1px, transparent 1px 5px);
}
.site-header[data-stuck]{
  box-shadow:0 14px 34px rgba(0,0,0,.46);
}

.skip-link{
  position:absolute;
  top:-70px;
  left:1rem;
  z-index:120;
  padding:.6rem 1.1rem;
  border-radius:0 0 var(--r-sm) var(--r-sm);
  background:var(--gold);
  color:#2A1A05;
  font-weight:800;
  font-size:.9rem;
  transition:top .18s ease;
}
.skip-link:focus{
  top:0;
  outline:2px solid var(--blue-soft);
  outline-offset:2px;
}

.masthead{position:relative}

.masthead-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:1rem;
  padding-block:1rem .85rem;
}

.brand{
  display:inline-flex;
  align-items:center;
  gap:.85rem;
  min-height:44px;
  text-decoration:none;
  flex:0 1 auto;
}

.brand-reels{
  display:inline-flex;
  gap:4px;
  flex:0 0 auto;
}
.brand-reels i{
  display:grid;
  place-items:center;
  width:28px;
  height:36px;
  border-radius:7px;
  font-family:var(--font-mono);
  font-style:normal;
  font-weight:700;
  font-size:1.05rem;
  line-height:1;
  color:#8E1C24;
  background:linear-gradient(180deg,#FBF3E4 0%,#E7D8BC 48%,#CDBB9C 100%);
  box-shadow:
    inset 0 0 0 2px rgba(11,31,26,.55),
    inset 0 -5px 0 rgba(11,31,26,.14),
    0 3px 0 rgba(0,0,0,.38);
}

.brand-copy{
  display:flex;
  flex-direction:column;
  line-height:1.16;
  min-width:0;
}
.brand-name{
  font-family:var(--font-display);
  font-weight:900;
  font-size:1.32rem;
  letter-spacing:.01em;
  color:#FBF7EF;
}
.brand-sub{
  font-family:var(--font-mono);
  font-size:.72rem;
  letter-spacing:.07em;
  color:var(--gold-soft);
}

.masthead-side{
  display:flex;
  align-items:center;
  justify-content:flex-end;
  gap:.65rem;
  flex-wrap:wrap;
}

.meter{
  display:inline-flex;
  align-items:center;
  gap:.45rem;
  padding:.4rem .75rem;
  border-radius:999px;
  border:1px solid rgba(46,124,246,.38);
  background:rgba(46,124,246,.12);
  font-family:var(--font-mono);
  font-size:.74rem;
  letter-spacing:.08em;
  color:var(--blue-soft);
  white-space:nowrap;
}
.meter-dot{
  width:8px;
  height:8px;
  border-radius:50%;
  background:var(--red-signal);
  box-shadow:0 0 0 3px rgba(230,59,46,.22);
}
.meter-label{color:rgba(139,184,255,.75)}
.meter-value{color:#DFEDFF;font-weight:700}

@media (prefers-reduced-motion: no-preference){
  .meter-dot{animation:meterPulse 2.8s ease-in-out infinite}
}
@keyframes meterPulse{
  0%,100%{box-shadow:0 0 0 3px rgba(230,59,46,.22)}
  50%{box-shadow:0 0 0 6px rgba(230,59,46,.06)}
}

/* 移动端栏目开关 */
.nav-toggle{
  display:none;
  align-items:center;
  gap:.5rem;
  min-height:44px;
  min-width:44px;
  padding:.5rem .8rem;
  border-radius:12px;
  border:1px solid rgba(214,168,75,.42);
  background:rgba(18,60,50,.9);
  color:var(--cream);
  font-weight:700;
  font-size:.85rem;
  cursor:pointer;
}
.nav-toggle:hover{
  background:rgba(23,71,59,1);
  border-color:var(--gold);
}
.nav-toggle-bars{
  display:inline-flex;
  flex-direction:column;
  gap:4px;
}
.nav-toggle-bars i{
  display:block;
  width:18px;
  height:2px;
  border-radius:2px;
  background:var(--gold);
  transition:transform .18s ease,opacity .18s ease;
}
.site-header[data-open] .nav-toggle-bars i:nth-child(1){
  transform:translateY(6px) rotate(45deg);
}
.site-header[data-open] .nav-toggle-bars i:nth-child(2){
  opacity:0;
}
.site-header[data-open] .nav-toggle-bars i:nth-child(3){
  transform:translateY(-6px) rotate(-45deg);
}

/* 下层栏目轨道 */
.navbar{
  position:relative;
  border-top:1px solid rgba(214,168,75,.2);
  background:linear-gradient(180deg, rgba(18,60,50,.94), rgba(11,31,26,.94));
}

.nav-list{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:.3rem;
  padding:.5rem 0;
}

.nav-item{flex:0 0 auto}

.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  gap:.5rem;
  min-height:44px;
  padding:.45rem .95rem;
  border-radius:10px;
  border:1px solid transparent;
  color:var(--cream);
  font-weight:700;
  font-size:.94rem;
  letter-spacing:.01em;
  transition:background-color .18s ease,border-color .18s ease,color .18s ease;
}
.nav-link::before{
  content:"";
  width:6px;
  height:6px;
  border-radius:50%;
  flex:0 0 auto;
  background:rgba(214,168,75,.55);
  box-shadow:0 0 8px rgba(214,168,75,.45);
  transition:background-color .18s ease,box-shadow .18s ease;
}
.nav-link:hover{
  background:rgba(214,168,75,.1);
  border-color:rgba(214,168,75,.36);
  color:#fff;
}
.nav-link:hover::before{
  background:var(--blue);
  box-shadow:0 0 10px var(--blue);
}

.nav-link[aria-current="page"]{
  color:#fff;
  background:linear-gradient(180deg,#D32435 0%,#9E1624 100%);
  border-color:rgba(255,255,255,.22);
  box-shadow:0 3px 0 rgba(0,0,0,.36);
}
.nav-link[aria-current="page"]::before{
  background:#FFD98A;
  box-shadow:0 0 10px #FFD98A;
}
.nav-link[aria-current="page"]:hover{
  background:linear-gradient(180deg,#E63B2E 0%,#B01826 100%);
}

/* 滚动读数条 */
.scroll-meter{
  position:absolute;
  left:0;
  right:0;
  bottom:-1px;
  height:2px;
  overflow:hidden;
  background:rgba(214,168,75,.16);
}
.scroll-meter-fill{
  display:block;
  height:100%;
  width:100%;
  transform:scaleX(0);
  transform-origin:left center;
  background:linear-gradient(90deg,var(--red-signal) 0%,var(--gold) 52%,var(--blue) 100%);
}

/* ---------- 页脚 · 酒红分区 ---------- */
.site-footer{
  position:relative;
  color:var(--paper);
  padding-block:3rem 0;
  background:
    radial-gradient(120% 92% at 10% 0%, #7E2531 0%, #6E1F2A 48%, #4A1620 100%);
  border-top:1px solid rgba(214,168,75,.35);
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:3px;
  background:linear-gradient(90deg,var(--red-signal) 0%,var(--gold) 46%,var(--blue) 100%);
}

.footer-grid{
  display:grid;
  grid-template-columns:minmax(0,1.6fr) minmax(0,1fr) minmax(0,1fr) minmax(0,1.5fr);
  gap:clamp(1.6rem,3vw,2.4rem);
}

.footer-brand{
  display:grid;
  align-content:start;
  gap:.7rem;
}

.brand-reels-sm i{
  width:24px;
  height:31px;
  font-size:.92rem;
  border-radius:6px;
}

.footer-name{
  font-family:var(--font-display);
  font-weight:900;
  font-size:1.28rem;
  letter-spacing:.01em;
  color:#FBF7EF;
}
.footer-summary{
  font-size:.9rem;
  line-height:1.8;
  color:rgba(244,233,216,.82);
  max-width:36ch;
}

.footer-col{min-width:0}
.footer-col-title{
  margin:0 0 .8rem;
  font-family:var(--font-mono);
  font-size:.74rem;
  font-weight:700;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--gold);
}

.footer-links{
  display:grid;
  gap:.1rem;
}

.footer-link{
  display:inline-flex;
  align-items:center;
  gap:.55rem;
  min-height:44px;
  padding:.15rem 0;
  font-size:.95rem;
  color:rgba(244,233,216,.86);
  transition:color .18s ease;
}
.footer-link::before{
  content:"";
  width:5px;
  height:5px;
  border-radius:50%;
  flex:0 0 auto;
  background:rgba(214,168,75,.6);
  transition:background-color .18s ease,box-shadow .18s ease;
}
.footer-link:hover{color:#fff}
.footer-link:hover::before{
  background:var(--gold);
  box-shadow:0 0 8px var(--gold);
}

.contact-list{
  display:grid;
  gap:.75rem;
  margin:0 0 1rem;
}
.contact-item{
  display:grid;
  gap:.15rem;
  font-size:.9rem;
}
.contact-key{
  font-family:var(--font-mono);
  font-size:.7rem;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:rgba(214,168,75,.95);
}
.contact-value{
  color:rgba(244,233,216,.92);
  word-break:break-word;
  line-height:1.6;
}

.service-note{
  padding:.7rem .85rem;
  border-left:2px solid rgba(214,168,75,.65);
  border-radius:0 var(--r-sm) var(--r-sm) 0;
  background:rgba(11,31,26,.3);
  font-size:.82rem;
  line-height:1.7;
  color:rgba(244,233,216,.84);
}

.footer-legal{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:.7rem 1.4rem;
  margin-top:clamp(2rem,4vw,3rem);
  padding-block:1.1rem 1.5rem;
  border-top:1px solid rgba(244,233,216,.22);
  font-size:.82rem;
  color:rgba(244,233,216,.75);
}
.legal-meta{
  font-family:var(--font-mono);
  letter-spacing:.03em;
}
.legal-links{
  display:flex;
  flex-wrap:wrap;
  gap:1.1rem;
}
.footer-link-sm{
  display:inline-flex;
  align-items:center;
  min-height:36px;
  padding:.15rem 0;
  color:rgba(244,233,216,.8);
  border-bottom:1px solid transparent;
  transition:color .18s ease,border-color .18s ease;
}
.footer-link-sm:hover{
  color:#fff;
  border-bottom-color:var(--gold);
}
.copyright{
  margin-left:auto;
  font-family:var(--font-mono);
  letter-spacing:.02em;
  color:rgba(244,233,216,.78);
}

/* ---------- 面包屑 ---------- */
.crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:.45rem;
  font-family:var(--font-mono);
  font-size:.8rem;
  letter-spacing:.04em;
  color:inherit;
  opacity:.86;
}
.crumbs li{
  display:inline-flex;
  align-items:center;
  gap:.45rem;
}
.crumbs li + li::before{
  content:"/";
  opacity:.5;
}
.crumb{
  border-bottom:1px solid transparent;
  transition:border-color .18s ease;
}
.crumb:hover{border-bottom-color:currentColor}

/* ---------- 面板 / 网格 / 正文 ---------- */
.panel{
  padding:clamp(1.1rem,2.4vw,1.8rem);
  border-radius:var(--r-lg);
  border:1px solid var(--line-gold);
  background:var(--panel);
  color:var(--cream);
  box-shadow:var(--shadow);
}

.grid{
  display:grid;
  gap:clamp(1rem,2.2vw,1.6rem);
}
.grid-2{grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.grid-3{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}

.prose{
  max-width:68ch;
  line-height:1.8;
  color:var(--slate);
}
.prose p{margin:0 0 1.05em}
.prose h2{
  margin:2em 0 .6em;
  font-size:clamp(1.4rem,2.4vw,1.9rem);
}
.prose h3{margin:1.6em 0 .5em}
.prose ul,
.prose ol{
  list-style:disc;
  padding-left:1.25em;
  margin:0 0 1.05em;
}
.prose ol{list-style:decimal}
.prose li{margin:.35em 0}
.prose a{
  color:var(--link);
  text-decoration:underline;
  text-underline-offset:.18em;
}
.prose a:hover{color:var(--red)}
.prose blockquote{
  margin:1.5em 0;
  padding:.9rem 1.2rem;
  border-left:3px solid var(--red);
  background:rgba(110,31,42,.07);
  font-family:var(--font-serif);
}

/* ---------- 图片容器基础（页面阶段放入图片） ---------- */
.figure{
  position:relative;
  margin:0;
  overflow:hidden;
  border-radius:var(--r-lg);
  border:1px solid var(--line-gold);
  background:linear-gradient(135deg,#123C32 0%,#0B1F1A 100%);
  box-shadow:var(--shadow);
}
.figure::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background-image:repeating-linear-gradient(180deg, rgba(46,124,246,.09) 0 1px, transparent 1px 4px);
  opacity:.65;
}
.figure img,
.figure picture img{
  display:block;
  width:100%;
  height:100%;
  aspect-ratio:16 / 9;
  object-fit:cover;
}
.figure-wide img{aspect-ratio:21 / 9}
.figure-tall img{aspect-ratio:3 / 4}
.figure-caption{
  position:relative;
  z-index:1;
  padding:.65rem 1rem;
  font-family:var(--font-mono);
  font-size:.78rem;
  letter-spacing:.04em;
  color:var(--gold);
  background:rgba(11,31,26,.92);
}

/* ---------- 响应式 ---------- */
@media (max-width:1080px){
  .footer-grid{
    grid-template-columns:repeat(2,minmax(0,1fr));
  }
  .footer-summary{max-width:none}
}

@media (max-width:860px){
  html{scroll-padding-top:6.5rem}

  .nav-toggle{display:inline-flex}
  .navbar{display:none}
  .site-header[data-open] .navbar{display:block}

  .nav-list{
    flex-direction:column;
    gap:.3rem;
    padding:.75rem 0 1rem;
  }
  .nav-item{width:100%}
  .nav-link{
    width:100%;
    justify-content:flex-start;
    padding:.75rem .9rem;
    background:rgba(11,31,26,.5);
    border:1px solid rgba(214,168,75,.16);
  }

  .masthead-inner{
    flex-wrap:nowrap;
    gap:.6rem;
    padding-block:.8rem;
  }
  .brand{gap:.65rem}
  .brand-sub{display:none}
  .meter{display:none}
  .brand-name{font-size:1.16rem}
}

@media (max-width:560px){
  .brand-reels i{width:24px;height:31px;font-size:.9rem;border-radius:6px}
  .brand-name{font-size:1.05rem}
  .masthead-side{gap:.45rem}
  .btn{
    padding:.5rem .85rem;
    font-size:.84rem;
  }
  .footer-grid{grid-template-columns:1fr}
  .footer-legal{
    flex-direction:column;
    align-items:flex-start;
    gap:.55rem;
  }
  .copyright{margin-left:0}
}

@media (max-width:430px){
  .nav-toggle-text{display:none}
  .masthead-side .btn-signal{display:none}
}

/* ---------- 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;
  }
}