/* ===================================================================
   365电玩城城主站 · /assets/site.css
   共享外壳：reset / 变量 / 中文排版 / 头部 / 页脚 / 通用组件
   =================================================================== */

:root{
  --ink:#0B0E14;
  --panel:#151A23;
  --line:#232B38;
  --violet:#8B5CF6;
  --cyan:#22D3EE;
  --amber:#FFB86B;
  --moss:#4ADE80;
  --clay:#FF6B57;
  --paper:#F4F1EA;
  --mist:#A8B3C4;

  --radius-lg:22px;
  --radius-md:16px;
  --radius-sm:10px;

  --shell:1240px;
  --gap:clamp(16px,2.4vw,28px);

  --font-ui:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:ui-monospace,"JetBrains Mono","IBM Plex Mono","SFMono-Regular",Menlo,Consolas,monospace;
  --font-display:"Oswald","Arial Narrow","PingFang SC","HarmonyOS Sans SC",system-ui,sans-serif;
}

/* ---------------- reset ---------------- */
*,*::before,*::after{box-sizing:border-box}

html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
}

body{
  margin:0;
  min-height:100vh;
  background-color:var(--ink);
  background-image:
    radial-gradient(1100px 620px at 88% -12%,rgba(139,92,246,.18),transparent 62%),
    radial-gradient(880px 520px at -12% 18%,rgba(34,211,238,.11),transparent 60%),
    radial-gradient(700px 420px at 58% 118%,rgba(255,184,107,.07),transparent 62%);
  background-repeat:no-repeat;
  color:var(--paper);
  font-family:var(--font-ui);
  font-size:17px;
  line-height:1.75;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

img,svg,video{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;line-height:1.2;font-weight:800}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}

:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}
::selection{background:var(--violet);color:var(--paper)}

/* ---------------- 跳至主要内容 ---------------- */
.skip-link{
  position:absolute;
  left:16px;
  top:-64px;
  z-index:120;
  padding:10px 20px;
  border-radius:0 0 12px 12px;
  background:var(--cyan);
  color:var(--ink);
  font-size:14px;
  font-weight:700;
  letter-spacing:.04em;
  transition:top .18s ease-out;
}
.skip-link:focus{top:0}

/* ---------------- 布局基元 ---------------- */
.shell{
  width:100%;
  max-width:var(--shell);
  margin-inline:auto;
  padding-inline:clamp(16px,4vw,40px);
}

.grid{display:grid;gap:var(--gap)}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}

/* ---------------- 排版基元 ---------------- */
.display{
  font-family:var(--font-display);
  font-size:clamp(40px,8vw,96px);
  font-weight:900;
  line-height:1;
  letter-spacing:-.02em;
  font-stretch:condensed;
  margin:0;
}
.section-title{
  font-size:clamp(26px,3.6vw,42px);
  font-weight:800;
  letter-spacing:-.01em;
  line-height:1.18;
}
.eyebrow{
  display:inline-block;
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:600;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--cyan);
  margin:0 0 12px;
}
.lede{
  font-size:17px;
  line-height:1.75;
  color:var(--mist);
  max-width:68ch;
}
.numeric{
  font-family:var(--font-mono);
  letter-spacing:.02em;
  font-variant-numeric:tabular-nums;
}

/* ---------------- 标签 ---------------- */
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:2px 10px;
  border-radius:999px;
  border:1px solid rgba(34,211,238,.35);
  color:var(--cyan);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.08em;
  white-space:nowrap;
}
.tag--amber{border-color:rgba(255,184,107,.42);color:var(--amber)}
.tag--moss{border-color:rgba(74,222,128,.42);color:var(--moss)}
.tag--clay{border-color:rgba(255,107,87,.42);color:var(--clay)}

/* ---------------- 按钮 ---------------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:11px 22px;
  border:1px solid transparent;
  border-radius:999px;
  font-size:14px;
  font-weight:700;
  letter-spacing:.04em;
  cursor:pointer;
  transition:transform .16s ease-out,background-color .16s ease-out,border-color .16s ease-out,color .16s ease-out,box-shadow .16s ease-out;
}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn--primary{
  background-image:linear-gradient(115deg,var(--violet),var(--cyan));
  color:#07090E;
  box-shadow:0 10px 26px -14px rgba(139,92,246,.9);
}
.btn--primary:hover{box-shadow:0 14px 30px -12px rgba(34,211,238,.85)}
.btn--ghost{
  background:transparent;
  border-color:var(--line);
  color:var(--paper);
}
.btn--ghost:hover{border-color:var(--cyan);color:var(--cyan)}

/* ---------------- 面板 ---------------- */
.panel{
  position:relative;
  background:var(--panel);
  border:1px solid rgba(139,92,246,.22);
  border-radius:var(--radius-lg);
  padding:clamp(20px,3.2vw,38px);
}
.panel--offset{margin-left:clamp(0px,2vw,24px)}
.panel--quiet{
  background:rgba(21,26,35,.62);
  border-color:var(--line);
}

/* ---------------- 标签页 ---------------- */
.tabs{width:100%}
.tablist{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  padding-bottom:14px;
  border-bottom:1px solid var(--line);
}
.tab{
  appearance:none;
  background:transparent;
  border:1px solid var(--line);
  border-radius:999px;
  padding:9px 18px;
  font-size:14px;
  font-weight:600;
  letter-spacing:.03em;
  color:var(--mist);
  cursor:pointer;
  transition:color .18s ease-out,border-color .18s ease-out,background-color .18s ease-out;
}
.tab:hover{color:var(--paper);border-color:rgba(34,211,238,.5)}
.tab[aria-selected="true"]{
  color:var(--cyan);
  border-color:rgba(34,211,238,.75);
  background:rgba(34,211,238,.10);
}
.tabpanel{margin-top:clamp(18px,2.6vw,28px);animation:tab-in .2s ease-out both}
.tabpanel[hidden]{display:none}

@keyframes tab-in{
  from{opacity:0;transform:translateY(6px)}
  to{opacity:1;transform:none}
}

/* ---------------- 面包屑 ---------------- */
.breadcrumbs{
  font-size:12px;
  letter-spacing:.1em;
  color:var(--mist);
  margin:0 0 20px;
}
.breadcrumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.breadcrumbs li{display:flex;align-items:center;gap:8px}
.breadcrumbs li+li::before{
  content:"／";
  color:var(--line);
}
.breadcrumbs a{color:var(--mist);transition:color .16s ease-out}
.breadcrumbs a:hover{color:var(--cyan)}
.breadcrumbs [aria-current="page"]{color:var(--paper)}

/* ---------------- 图片容器 ---------------- */
.media-frame{
  position:relative;
  overflow:hidden;
  border-radius:var(--radius-md);
  border:1px solid rgba(139,92,246,.22);
  background-image:linear-gradient(150deg,#151A23 0%,#0B0E14 70%,rgba(139,92,246,.16) 100%);
  aspect-ratio:16/9;
  width:100%;
}
.media-frame>img,
.media-frame>video{
  width:100%;
  height:100%;
  object-fit:cover;
  display:block;
}
.media-frame--wide{aspect-ratio:21/9}
.media-frame--square{aspect-ratio:1/1}
.media-frame--tall{aspect-ratio:3/4}
.media-frame__caption{
  margin-top:10px;
  font-size:12px;
  letter-spacing:.08em;
  color:var(--mist);
  font-family:var(--font-mono);
}

/* ---------------- 滚动进度 ---------------- */
.scroll-progress{
  position:fixed;
  top:0;
  left:0;
  width:100%;
  height:3px;
  z-index:100;
  transform:scaleX(0);
  transform-origin:0 50%;
  background-image:linear-gradient(90deg,var(--violet),var(--cyan) 55%,var(--amber));
  pointer-events:none;
}

/* ---------------- 滚动显现 ---------------- */
[data-reveal]{
  opacity:0;
  transform:translateY(8px);
  transition:opacity .24s ease-out,transform .24s ease-out;
}
[data-reveal].is-revealed{opacity:1;transform:none}

/* ===================================================================
   头部
   =================================================================== */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(11,14,20,.94);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}

.header-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding-block:11px;
  border-bottom:1px solid rgba(35,43,56,.75);
}

.brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  min-width:0;
}
.brand-mark{
  flex:0 0 auto;
  display:grid;
  place-items:center;
  width:40px;
  height:40px;
  border-radius:12px;
  background-image:linear-gradient(135deg,rgba(139,92,246,.9),rgba(34,211,238,.85));
  color:#07090E;
  font-family:var(--font-mono);
  font-size:14px;
  font-weight:700;
  letter-spacing:.02em;
}
.brand-text{display:flex;flex-direction:column;min-width:0}
.brand-name{
  font-size:16px;
  font-weight:800;
  letter-spacing:.03em;
  color:var(--paper);
  line-height:1.3;
}
.brand-desc{
  font-size:12px;
  line-height:1.5;
  color:var(--mist);
  max-width:52ch;
  overflow:hidden;
  text-overflow:ellipsis;
}

.header-utility{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin:0;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.06em;
  color:var(--mist);
  white-space:nowrap;
}
.pulse-dot{
  width:8px;
  height:8px;
  border-radius:50%;
  background:var(--amber);
  box-shadow:0 0 0 0 rgba(255,184,107,.6);
  animation:pulse 2.4s ease-out infinite;
  flex:0 0 auto;
}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(255,184,107,.55)}
  70%{box-shadow:0 0 0 9px rgba(255,184,107,0)}
  100%{box-shadow:0 0 0 0 rgba(255,184,107,0)}
}

.header-main{
  position:relative;
  display:flex;
  align-items:center;
  gap:clamp(12px,2vw,26px);
  padding-block:10px 12px;
}

.nav-list{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:4px;
}
.nav-list a{
  display:inline-flex;
  align-items:center;
  padding:8px 15px;
  border-radius:999px;
  font-size:14px;
  font-weight:600;
  letter-spacing:.03em;
  color:var(--mist);
  transition:color .16s ease-out,background-color .16s ease-out;
}
.nav-list a:hover{
  color:var(--paper);
  background:rgba(139,92,246,.14);
}
.nav-list a[aria-current="page"]{
  color:var(--cyan);
  background:rgba(34,211,238,.10);
  box-shadow:inset 0 0 0 1px rgba(34,211,238,.45);
}

.header-cta{margin-left:auto;flex:0 0 auto}

.nav-toggle{
  display:none;
  align-items:center;
  gap:10px;
  padding:9px 16px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(21,26,35,.8);
  color:var(--paper);
  font-size:13px;
  font-weight:700;
  letter-spacing:.08em;
  cursor:pointer;
}
.nav-toggle:hover{border-color:var(--cyan);color:var(--cyan)}
.nav-toggle-bars{
  width:18px;
  height:12px;
  flex:0 0 auto;
  background-image:
    linear-gradient(var(--paper),var(--paper)),
    linear-gradient(var(--paper),var(--paper)),
    linear-gradient(var(--paper),var(--paper));
  background-size:100% 2px;
  background-position:0 0,0 50%,0 100%;
  background-repeat:no-repeat;
}

/* ---------------- 头部响应式 ---------------- */
@media (max-width:900px){
  .nav-toggle{display:inline-flex}

  .site-nav{
    position:absolute;
    top:calc(100% + 8px);
    left:0;
    right:0;
    display:none;
    padding:10px;
    border-radius:18px;
    border:1px solid rgba(34,211,238,.3);
    background:rgba(21,26,35,.98);
    box-shadow:0 28px 60px -20px rgba(0,0,0,.85);
    max-height:min(70vh,520px);
    overflow-y:auto;
  }
  .site-nav[data-open]{display:block}

  .nav-list{flex-direction:column;align-items:stretch;gap:2px}
  .nav-list a{
    padding:12px 14px;
    border-radius:12px;
    font-size:15px;
  }
  .header-cta{margin-left:auto}
}

@media (max-width:760px){
  .brand-desc{display:none}
  .header-utility{font-size:11px;letter-spacing:.02em}
}

@media (max-width:560px){
  .header-cta{display:none}
  .brand-mark{width:34px;height:34px;border-radius:10px;font-size:12px}
  .brand-name{font-size:15px}
}

/* ===================================================================
   页脚
   =================================================================== */
.site-footer{
  position:relative;
  margin-top:clamp(48px,8vw,110px);
  background:#080A0F;
  border-top:1px solid var(--line);
}
.site-footer::before{
  content:"";
  position:absolute;
  inset:0 0 auto 0;
  height:2px;
  background-image:linear-gradient(90deg,var(--violet),var(--cyan) 48%,rgba(255,184,107,.85) 78%,transparent);
}

.footer-inner{
  display:grid;
  grid-template-columns:minmax(0,1.15fr) minmax(0,1.35fr);
  gap:clamp(24px,4vw,64px);
  padding-block:clamp(36px,5vw,68px);
}

.footer-brand-name{
  font-family:var(--font-display);
  font-size:clamp(24px,3vw,34px);
  font-weight:900;
  letter-spacing:-.01em;
  color:var(--paper);
  margin:0 0 12px;
}
.footer-brand-desc{
  font-size:15px;
  line-height:1.75;
  color:var(--mist);
  max-width:46ch;
  margin:0 0 14px;
}
.footer-note{
  font-size:13px;
  line-height:1.7;
  color:var(--mist);
  max-width:46ch;
  padding-left:14px;
  border-left:2px solid rgba(139,92,246,.5);
  margin:0 0 16px;
}
.footer-contact{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.04em;
  line-height:1.9;
  color:var(--mist);
  margin:0;
  word-break:break-word;
}

.footer-nav{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:clamp(18px,3vw,32px);
}
.footer-col-title{
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:600;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--cyan);
  margin:0 0 14px;
}
.footer-col ul{display:grid;gap:9px}
.footer-col a{
  font-size:15px;
  color:var(--mist);
  transition:color .16s ease-out,padding-left .16s ease-out;
}
.footer-col a:hover{color:var(--paper);padding-left:5px}

.footer-base{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding-block:18px 30px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--mist);
}
.footer-legal,.footer-copy{
  margin:0;
  font-family:var(--font-mono);
  letter-spacing:.05em;
}

@media (max-width:900px){
  .footer-inner{grid-template-columns:minmax(0,1fr)}
}
@media (max-width:640px){
  .footer-nav{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid--2,.grid--3{grid-template-columns:minmax(0,1fr)}
  body{font-size:16px}
}
@media (max-width:420px){
  .footer-nav{grid-template-columns:minmax(0,1fr)}
}

/* ===================================================================
   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;
  }
  [data-reveal]{opacity:1;transform:none}
  .btn:hover{transform:none}
  .footer-col a:hover{padding-left:0}
}