/* ============================================================
   第一娱乐游艺 · 游艺资料馆
   /assets/site.css — 共享外壳与通用组件
   ============================================================ */

/* ---------- 01 · reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:132px}
body,h1,h2,h3,h4,p,figure,blockquote{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img,svg{display:block;max-width:100%}
button,input,select,textarea{font:inherit;color:inherit;background:none;border:0}
button{cursor:pointer}
a{color:inherit;text-decoration:none}
table{border-collapse:collapse;border-spacing:0}

/* ---------- 02 · tokens ---------- */
:root{
  --ink:#0B1A2B;
  --ink-2:#12263D;
  --cyan:#35E0D0;
  --orange:#FF7A29;
  --paper:#F4F7FA;
  --silver:#C8CDD4;
  --batik:#4E7FB8;
  --void:#050A12;
  --batch:#FFD166;
  --hover:#1E4A63;

  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",monospace;

  --wrap:1240px;
  --gut:24px;
  --radius:4px;
  --hair:rgba(200,205,212,.18);
  --ease:cubic-bezier(.4,.1,.2,1);
}

/* ---------- 03 · base ---------- */
body{
  min-height:100vh;
  background-color:var(--ink);
  background-image:
    linear-gradient(118deg,rgba(78,127,184,.13) 0%,rgba(11,26,43,0) 46%),
    repeating-linear-gradient(90deg,rgba(200,205,212,.045) 0 1px,rgba(0,0,0,0) 1px 96px),
    repeating-linear-gradient(0deg,rgba(200,205,212,.045) 0 1px,rgba(0,0,0,0) 1px 96px);
  background-attachment:fixed;
  color:var(--paper);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.005em;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{font-weight:800;letter-spacing:-.02em;line-height:1.15}
p{letter-spacing:.005em}
strong{font-weight:800}
small{font-size:13px}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:2px}

/* ---------- 04 · utilities ---------- */
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 var(--gut)}
.mono{font-family:var(--font-mono);letter-spacing:.02em;font-variant-numeric:tabular-nums}
.muted{color:var(--silver)}
.divider{height:1px;border:0;margin:32px 0;background:var(--hair)}

/* 显现动效（无 JS 时保持可见） */
.has-js [data-reveal]{opacity:0;transform:translateY(6px);transition:opacity .12s var(--ease),transform .12s var(--ease)}
.has-js [data-reveal].is-visible{opacity:1;transform:none}

/* ---------- 05 · 跳过链接 ---------- */
.skip-link{
  position:absolute;left:16px;top:-72px;z-index:90;
  padding:10px 18px;background:var(--cyan);color:var(--void);
  font-size:14px;font-weight:800;border-radius:0 0 var(--radius) var(--radius);
  transition:top .18s var(--ease);
}
.skip-link:focus{top:0}

/* ---------- 06 · 页头 ---------- */
.site-header{
  position:sticky;top:0;z-index:70;
  background:rgba(11,26,43,.94);
  border-bottom:1px solid var(--hair);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
}
.tape{
  overflow:hidden;
  max-height:40px;opacity:1;
  border-bottom:1px solid rgba(200,205,212,.14);
  background:linear-gradient(90deg,rgba(78,127,184,.28),rgba(53,224,208,.10) 58%,rgba(255,122,41,.12));
  transition:max-height .2s var(--ease),opacity .2s var(--ease);
}
.site-header[data-scrolled] .tape{max-height:0;opacity:0}
.tape__track{
  display:flex;align-items:center;gap:26px;
  max-width:var(--wrap);margin:0 auto;padding:7px var(--gut);
  overflow:hidden;white-space:nowrap;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;color:var(--silver);
}
.tape__track span{display:inline-flex;align-items:center}
.tape__track span::before{content:"◆";margin-right:8px;font-size:8px;color:var(--cyan)}
.tape__track span:last-child::before{color:var(--orange)}

.command-bar{
  display:flex;align-items:center;gap:16px;
  max-width:var(--wrap);margin:0 auto;padding:14px var(--gut);
}
.brand{display:inline-flex;align-items:center;gap:12px;flex:0 0 auto}
.brand__mark{
  display:grid;place-items:center;flex:0 0 auto;
  width:38px;height:38px;border-radius:var(--radius);
  background:var(--cyan);color:var(--void);
  font-family:var(--font-mono);font-size:13px;font-weight:700;letter-spacing:.02em;
  box-shadow:4px 4px 0 rgba(255,122,41,.55);
}
.brand__words{display:block;min-width:0}
.brand__name{display:block;font-size:17px;font-weight:800;letter-spacing:-.02em;color:var(--paper);line-height:1.25}
.brand__sub{display:block;font-family:var(--font-mono);font-size:10px;letter-spacing:.18em;color:var(--silver);text-transform:uppercase;line-height:1.5}

.nav{flex:1 1 auto;display:flex;justify-content:flex-start;min-width:0}
.nav__list{display:flex;align-items:center;gap:2px;flex-wrap:nowrap}
.nav__item{display:flex}
.nav__link{
  position:relative;display:inline-flex;align-items:center;gap:6px;
  height:34px;padding:0 10px;white-space:nowrap;
  font-size:14px;color:var(--silver);
  border:1px solid transparent;border-radius:3px;
  transition:color .18s var(--ease),background-color .18s var(--ease),border-color .18s var(--ease);
}
.nav__link::before{
  content:attr(data-index);
  font-family:var(--font-mono);font-size:10px;letter-spacing:.08em;
  color:var(--cyan);opacity:.55;
  transition:opacity .18s var(--ease);
}
.nav__link::after{
  content:"";position:absolute;left:10px;right:10px;bottom:4px;height:1px;
  background:var(--cyan);transform:scaleX(0);transform-origin:left;
  transition:transform .18s var(--ease),background-color .18s var(--ease);
}
.nav__link:hover{color:var(--paper);background:rgba(30,74,99,.55)}
.nav__link:hover::before{opacity:1}
.nav__link:hover::after{transform:scaleX(1)}
.nav__link[aria-current="page"]{
  color:var(--paper);background:var(--ink-2);border-color:rgba(53,224,208,.5);
}
.nav__link[aria-current="page"]::before{opacity:1}
.nav__link[aria-current="page"]::after{transform:scaleX(1);background:var(--orange)}

.command-bar__tools{display:flex;align-items:center;gap:10px;flex:0 0 auto;margin-left:auto}
.clock{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:999px;
  background:var(--ink-2);border:1px solid rgba(53,224,208,.38);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.02em;color:var(--paper);
  transition:border-color .18s var(--ease),background-color .18s var(--ease),box-shadow .18s var(--ease);
}
.clock:hover{border-color:var(--cyan);background:var(--hover)}
.clock.is-copied{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(53,224,208,.2)}
.clock__label{font-size:10px;letter-spacing:.16em;color:var(--silver);text-transform:uppercase}
.clock__version{font-weight:700;color:var(--cyan);letter-spacing:.06em}
.clock__countdown{
  display:inline-block;min-width:88px;text-align:right;
  color:var(--orange);font-variant-numeric:tabular-nums;
}
.clock__countdown.is-flipping{animation:clock-flip .2s var(--ease)}
@keyframes clock-flip{0%{transform:translateY(-42%);opacity:.25}100%{transform:none;opacity:1}}

.nav-toggle{
  display:none;align-items:center;gap:8px;
  padding:8px 13px;border-radius:999px;
  background:var(--ink-2);border:1px solid rgba(200,205,212,.28);
  font-size:12px;letter-spacing:.14em;color:var(--paper);
  transition:border-color .18s var(--ease),background-color .18s var(--ease);
}
.nav-toggle:hover{border-color:var(--cyan);background:var(--hover)}
.nav-toggle__bars{position:relative;display:block;width:16px;height:10px}
.nav-toggle__bars::before,
.nav-toggle__bars::after{
  content:"";position:absolute;left:0;right:0;height:1.5px;background:var(--cyan);
  transition:transform .18s var(--ease),top .18s var(--ease),bottom .18s var(--ease);
}
.nav-toggle__bars::before{top:0}
.nav-toggle__bars::after{bottom:0}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before{top:4px;transform:rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after{bottom:4px;transform:rotate(-45deg)}

.scroll-bar{position:absolute;left:0;right:0;bottom:-1px;height:2px;background:rgba(200,205,212,.12);overflow:hidden}
.scroll-bar__fill{
  display:block;height:100%;width:100%;
  transform:scaleX(0);transform-origin:left;
  background:linear-gradient(90deg,var(--cyan),var(--orange));
  transition:transform .1s linear;
}

/* ---------- 07 · 页脚 ---------- */
.site-footer{
  margin-top:96px;
  background:var(--void);
  border-top:1px solid var(--hair);
  color:var(--silver);
}
.footer__layer{max-width:var(--wrap);margin:0 auto;padding:56px var(--gut)}
.footer__layer + .footer__layer{border-top:1px solid rgba(200,205,212,.12)}
.footer__layer--main{padding-bottom:48px}
.footer__layer--costs{padding-top:48px;padding-bottom:48px;background:rgba(18,38,61,.35)}
.footer__layer--legal{padding-top:24px;padding-bottom:28px;background:rgba(0,0,0,.3)}
.site-footer .brand__name{color:var(--paper)}
.site-footer .brand__sub{color:var(--silver)}

.footer__grid{display:grid;grid-template-columns:1.4fr 1fr 1.3fr;gap:40px;align-items:start}
.footer__note{margin-top:18px;max-width:34ch;font-size:14px;line-height:1.75;color:var(--silver)}
.footer__heading{
  margin-bottom:16px;
  font-family:var(--font-mono);font-size:11px;font-weight:600;
  letter-spacing:.18em;text-transform:uppercase;color:var(--cyan);
  line-height:1.4;
}
.footer__heading-note{margin-left:10px;color:var(--silver);letter-spacing:.1em}
.footer__links{display:grid;gap:10px}
.footer__links a{
  display:inline-flex;align-items:center;gap:8px;
  font-size:15px;color:var(--paper);
  transition:color .18s var(--ease);
}
.footer__links a::before{
  content:"";width:10px;height:1px;background:var(--batik);
  transition:width .18s var(--ease),background-color .18s var(--ease);
}
.footer__links a:hover{color:var(--cyan)}
.footer__links a:hover::before{width:22px;background:var(--orange)}
.footer__contact-list{display:grid;gap:10px;font-size:14px;line-height:1.7}
.footer__contact-list li{display:flex;gap:10px;flex-wrap:wrap}
.footer__k{
  flex:0 0 auto;min-width:56px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--batik);
  padding-top:3px;
}

.footer__costs{width:100%}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
.cost-table{width:100%;min-width:660px;font-size:14px}
.cost-table th,.cost-table td{
  text-align:left;padding:12px 16px;vertical-align:top;
  border-bottom:1px solid rgba(200,205,212,.14);
}
.cost-table thead th{
  padding-bottom:10px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--cyan);white-space:nowrap;
  border-bottom:1px solid rgba(53,224,208,.35);
}
.cost-table tbody th{font-weight:700;color:var(--paper);white-space:nowrap}
.cost-table tbody td{font-family:var(--font-mono);letter-spacing:.02em;color:var(--silver);white-space:nowrap}
.cost-table tbody td:last-child{font-family:var(--font-cn);letter-spacing:.005em;white-space:normal;color:var(--silver)}
.cost-table tbody tr:nth-child(even){background:rgba(18,38,61,.5)}
.cost-table tbody tr:hover{background:var(--hover)}
.cost-table__code{
  display:inline-block;margin-right:8px;padding:1px 6px;
  font-family:var(--font-mono);font-size:11px;
  color:var(--cyan);border:1px solid rgba(53,224,208,.4);border-radius:3px;
}

.footer__legal{display:flex;align-items:center;flex-wrap:wrap;gap:12px 24px}
.footer__legal-item{
  margin:0;font-family:var(--font-mono);font-size:12px;
  letter-spacing:.06em;color:var(--silver);
}
.footer__icp{padding:3px 10px;border:1px solid rgba(200,205,212,.24);border-radius:999px;color:var(--paper)}
.footer__legal-links{display:flex;flex-wrap:wrap;gap:18px;margin-left:auto}
.footer__legal-links a{
  font-size:13px;color:var(--silver);
  border-bottom:1px solid rgba(200,205,212,.35);
  transition:color .18s var(--ease),border-color .18s var(--ease);
}
.footer__legal-links a:hover{color:var(--cyan);border-color:var(--cyan)}

/* ---------- 08 · 通用排版组件 ---------- */
.breadcrumb{margin-bottom:24px}
.breadcrumb__list{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:12px;color:var(--silver);
}
.breadcrumb__link{color:var(--silver);border-bottom:1px solid transparent;transition:color .18s var(--ease),border-color .18s var(--ease)}
.breadcrumb__link:hover{color:var(--cyan);border-color:var(--cyan)}
.breadcrumb__sep{color:var(--batik)}
.breadcrumb__current{color:var(--paper)}

.section{padding:64px 0;border-top:1px solid var(--hair)}
.section:first-of-type{border-top:0}
.section__head{display:flex;align-items:flex-end;flex-wrap:wrap;gap:12px 20px;margin-bottom:32px}
.section__index{
  font-family:var(--font-mono);font-size:44px;line-height:1;
  color:var(--cyan);letter-spacing:0;font-variant-numeric:tabular-nums;
}
.section__title{font-size:clamp(24px,3vw,34px);font-weight:800;letter-spacing:-.02em;line-height:1.15}
.section__note{
  margin-left:auto;max-width:34ch;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;
  text-transform:uppercase;color:var(--silver);
}

.card{
  position:relative;
  padding:24px;
  background:var(--ink-2);
  border:1px solid rgba(200,205,212,.18);
  border-radius:var(--radius);
  transition:background-color .2s var(--ease),border-color .2s var(--ease);
}
.card:hover{background:var(--hover);border-color:rgba(53,224,208,.42)}
.card__label{
  position:absolute;top:-1px;right:-1px;
  padding:4px 10px;border-radius:0 var(--radius) 0 var(--radius);
  background:var(--batik);color:var(--void);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;line-height:1.5;
}
.card__title{margin-bottom:10px;font-size:20px;font-weight:800;letter-spacing:-.01em;line-height:1.3;color:var(--paper)}
.card__text{margin-bottom:16px;font-size:15px;line-height:1.75;color:var(--silver)}
.card__meta{display:flex;flex-wrap:wrap;gap:12px;font-family:var(--font-mono);font-size:12px;color:var(--silver)}
.card__foot{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:18px;padding-top:16px;
  border-top:1px dashed rgba(200,205,212,.22);
}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 9px;border-radius:999px;
  border:1px solid rgba(200,205,212,.3);color:var(--silver);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;line-height:1.6;
}
.tag--cyan{color:var(--cyan);border-color:rgba(53,224,208,.5)}
.tag--orange{color:var(--orange);border-color:rgba(255,122,41,.5)}
.tag--batch{color:var(--batch);border-color:rgba(255,209,102,.5)}

.note{
  padding:16px 18px;
  border-left:2px solid var(--cyan);
  background:rgba(18,38,61,.7);
  font-size:14px;line-height:1.75;color:var(--silver);
}
.note__k{
  display:block;margin-bottom:6px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;
  text-transform:uppercase;color:var(--cyan);
}

.index-list{border-top:1px solid rgba(200,205,212,.16)}
.index-list__item{border-bottom:1px solid rgba(200,205,212,.16)}
.index-list__link{
  display:flex;align-items:center;gap:14px;
  padding:14px 4px;color:var(--silver);
  transition:color .18s var(--ease),padding-left .18s var(--ease),background-color .18s var(--ease);
}
.index-list__link:hover,.index-list__link[aria-current="true"]{color:var(--paper);padding-left:12px;background:rgba(30,74,99,.45)}
.index-list__code{font-family:var(--font-mono);font-size:12px;color:var(--cyan)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 20px;border:1px solid transparent;border-radius:var(--radius);
  font-size:14px;font-weight:700;letter-spacing:.02em;line-height:1.4;
  transition:background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease);
}
.btn--primary{background:var(--orange);color:#1A0D02}
.btn--primary:hover{background:#FF9350}
.btn--ghost{border-color:rgba(53,224,208,.55);color:var(--cyan)}
.btn--ghost:hover{background:var(--hover);color:var(--paper)}
.btn--quiet{background:var(--ink-2);border-color:rgba(200,205,212,.24);color:var(--paper)}
.btn--quiet:hover{border-color:var(--cyan);color:var(--cyan)}

.grid{display:grid;gap:24px}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid--sidebar{grid-template-columns:280px minmax(0,1fr);gap:32px;align-items:start}

/* ---------- 09 · 图片占位容器（页面阶段使用） ---------- */
.media{margin:0}
.media__frame{
  position:relative;overflow:hidden;
  aspect-ratio:16/9;
  border:1px solid rgba(200,205,212,.22);
  border-radius:var(--radius);
  background:
    linear-gradient(135deg,rgba(78,127,184,.22),rgba(11,26,43,.92) 62%),
    repeating-linear-gradient(45deg,rgba(53,224,208,.07) 0 10px,rgba(0,0,0,0) 10px 20px);
}
.media__frame::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  box-shadow:inset 0 0 0 1px rgba(5,10,18,.55);
}
.media--wide .media__frame{aspect-ratio:21/9}
.media--tall .media__frame{aspect-ratio:4/5}
.media--square .media__frame{aspect-ratio:1/1}
.media--cyan .media__frame{
  background:
    linear-gradient(135deg,rgba(53,224,208,.22),rgba(11,26,43,.92) 60%),
    repeating-linear-gradient(0deg,rgba(78,127,184,.12) 0 1px,rgba(0,0,0,0) 1px 18px);
}
.media--orange .media__frame{
  background:
    linear-gradient(135deg,rgba(255,122,41,.22),rgba(11,26,43,.92) 60%),
    repeating-linear-gradient(90deg,rgba(200,205,212,.07) 0 1px,rgba(0,0,0,0) 1px 18px);
}
.media__img{width:100%;height:100%;object-fit:cover;filter:saturate(.72) contrast(1.04)}
.media__caption{margin-top:8px;font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;color:var(--silver)}

/* ---------- 10 · 响应式 ---------- */
@media (max-width:1120px){
  .command-bar{flex-wrap:wrap;row-gap:12px;padding:12px var(--gut)}
  .nav{
    order:3;flex:1 1 100%;display:none;
    margin-top:4px;padding-top:12px;
    border-top:1px solid rgba(200,205,212,.16);
  }
  .nav[data-open]{display:block;animation:nav-drop .18s var(--ease)}
  .nav__list{flex-direction:column;align-items:stretch;gap:2px}
  .nav__link{
    height:auto;padding:11px 12px;font-size:15px;
    border-left:2px solid transparent;border-radius:2px;
  }
  .nav__link::after{
    left:0;right:auto;top:9px;bottom:9px;width:2px;height:auto;
    transform:scaleY(0);transform-origin:top;
  }
  .nav__link:hover,.nav__link[aria-current="page"]{padding-left:16px}
  .nav__link:hover::after,.nav__link[aria-current="page"]::after{transform:scaleY(1)}
  .nav-toggle{display:inline-flex}
  .footer__grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer__contact{grid-column:1 / -1}
}
@keyframes nav-drop{0%{opacity:0;transform:translateY(-6px)}100%{opacity:1;transform:none}}

@media (max-width:900px){
  .grid--sidebar{grid-template-columns:minmax(0,1fr)}
  .grid--3{grid-template-columns:repeat(2,minmax(0,1fr))}
}

@media (max-width:767px){
  :root{--gut:18px}
  html{scroll-padding-top:112px}
  .tape__track span:nth-child(n+3){display:none}
  .brand__mark{width:34px;height:34px;font-size:12px}
  .brand__name{font-size:16px}
  .clock{padding:6px 11px}
  .clock__label{display:none}
  .clock__countdown{min-width:78px;font-size:11.5px}
  .section{padding:48px 0}
  .section__index{font-size:34px}
  .section__note{margin-left:0}
  .grid--2,.grid--3{grid-template-columns:minmax(0,1fr)}
  .footer__layer{padding:40px var(--gut)}
  .footer__grid{grid-template-columns:minmax(0,1fr);gap:28px}
  .footer__legal-links{margin-left:0}
  .site-footer{margin-top:64px}
}

/* ---------- 11 · 降低动效 ---------- */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .has-js [data-reveal]{opacity:1;transform:none}
  .scroll-bar__fill{transition:none}
}