/* =========================================================
   /assets/site.css — 电玩城棋牌 · 夜场档案
   共享层：reset / 变量 / 中文排版 / 头部 / 页脚 / 通用组件
   ========================================================= */

:root {
  /* 色彩体系 */
  --ink: #0E1016;
  --ink-soft: #141826;
  --ink-deep: #0A0C12;
  --slate: #DCE3EC;
  --paper: #F4EBDD;
  --cyan: #2FF3E0;
  --magenta: #FF3CAC;
  --violet: #7A5CFF;
  --gold: #F2B544;
  --ember: #FF5A3C;

  /* 字体 */
  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", "Courier New", monospace;

  /* 尺度 */
  --wrap: 1200px;
  --gutter: clamp(16px, 4vw, 32px);
  --head-h: 78px;
}

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

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

html.kit-lock { overflow: hidden; }

body {
  margin: 0;
  background: var(--ink);
  color: #EDF1F7;
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.75;
  letter-spacing: .01em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6, p, figure, blockquote, dl, dd { margin: 0; }

ul, ol { margin: 0; padding: 0; }

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

button, input, select, textarea { font: inherit; color: inherit; }

a { color: inherit; }

::selection {
  background: var(--magenta);
  color: #12060E;
}

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

#main-content:focus { outline: none; }

/* ---------- 无障碍跳转 ---------- */
.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 200;
  padding: 10px 18px;
  background: var(--cyan);
  color: #06100F;
  font-weight: 700;
  font-size: 14px;
  text-decoration: none;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%);
  transform: translateY(-160%);
  transition: transform .2s ease;
}

.skip-link:focus,
.skip-link:focus-visible { transform: translateY(0); }

/* =========================================================
   头部
   ========================================================= */
.site-head {
  position: sticky;
  top: 0;
  z-index: 70;
  background:
    radial-gradient(120% 200% at 0% 0%, rgba(122, 92, 255, .22), transparent 60%),
    rgba(11, 13, 20, .95);
  border-bottom: 1px solid rgba(47, 243, 224, .24);
  color: #EAF0F8;
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}

.site-head__inner {
  display: flex;
  align-items: center;
  gap: clamp(12px, 2vw, 28px);
  width: 100%;
  max-width: var(--wrap);
  min-height: var(--head-h);
  margin: 0 auto;
  padding: 10px var(--gutter);
}

/* 品牌 */
.brand-mark {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex: 0 0 auto;
  color: inherit;
  text-decoration: none;
}

.brand-mark__glyph {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  font-size: 20px;
  font-weight: 800;
  line-height: 1;
  color: #080A10;
  background: linear-gradient(135deg, var(--cyan), var(--violet) 58%, var(--magenta));
  clip-path: polygon(0 0, 100% 0, 100% 68%, 68% 100%, 0 100%);
  transition: filter .25s ease;
}

.brand-mark:hover .brand-mark__glyph { filter: brightness(1.15) saturate(1.15); }

.brand-mark__text { display: block; }

.brand-mark__name {
  display: block;
  font-size: 17px;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: .05em;
  color: #F4EBDD;
}

.brand-mark__sub {
  display: block;
  margin-top: 3px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .22em;
  color: var(--cyan);
  opacity: .85;
}

.head-slogan {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .26em;
  white-space: nowrap;
  color: rgba(220, 227, 236, .58);
}

/* 导航 */
.site-head__nav { margin-left: auto; }

.nav-list {
  display: flex;
  align-items: center;
  gap: 2px;
  list-style: none;
}

.nav-list__item { display: block; }

.nav-link {
  position: relative;
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  padding: 9px 12px;
  font-size: 14.5px;
  font-weight: 600;
  letter-spacing: .02em;
  color: var(--slate);
  text-decoration: none;
  transition: color .2s ease, background-color .2s ease;
}

.nav-link__num {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .08em;
  color: var(--gold);
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 4px;
  height: 1px;
  background: var(--cyan);
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform .28s ease;
}

.nav-link:hover { color: var(--cyan); }

.nav-link:hover::after { transform: scaleX(1); }

.nav-link[aria-current="page"] {
  color: #06100F;
  background: var(--cyan);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%);
}

.nav-link[aria-current="page"] .nav-link__num { color: #0B3A38; }

.nav-link[aria-current="page"]::after { display: none; }

.head-cta { flex: 0 0 auto; }

/* 移动端开关 */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 9px;
  padding: 9px 13px;
  background: transparent;
  border: 1px solid rgba(47, 243, 224, .45);
  color: var(--cyan);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .18em;
  cursor: pointer;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%);
  transition: background-color .2s ease, color .2s ease;
}

.nav-toggle:hover { background: rgba(47, 243, 224, .14); }

.nav-toggle__icon {
  position: relative;
  display: block;
  width: 18px;
  height: 12px;
}

.nav-toggle__icon::before,
.nav-toggle__icon::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  height: 2px;
  background: currentColor;
  transition: top .25s ease, transform .25s ease;
}

.nav-toggle__icon::before { top: 0; }
.nav-toggle__icon::after { top: 10px; }

.site-head[data-open] .nav-toggle { background: var(--cyan); color: #06100F; }

.site-head[data-open] .nav-toggle__icon::before {
  top: 5px;
  transform: rotate(45deg);
}

.site-head[data-open] .nav-toggle__icon::after {
  top: 5px;
  transform: rotate(-45deg);
}

/* 阅读进度线 */
.progress-line {
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--violet) 55%, var(--magenta));
  transform: scaleX(0);
  transform-origin: 0 50%;
  will-change: transform;
}

/* =========================================================
   页脚
   ========================================================= */
.site-foot {
  position: relative;
  margin-top: clamp(48px, 8vw, 96px);
  background:
    radial-gradient(120% 90% at 10% 0%, rgba(122, 92, 255, .26), transparent 60%),
    radial-gradient(110% 80% at 94% 6%, rgba(47, 243, 224, .18), transparent 58%),
    radial-gradient(90% 70% at 70% 100%, rgba(255, 60, 172, .14), transparent 62%),
    var(--ink-deep);
  border-top: 1px solid rgba(47, 243, 224, .26);
  color: var(--slate);
}

.site-foot__inner {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: clamp(38px, 6vw, 72px) var(--gutter) 28px;
}

.foot-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px 22px;
  padding-bottom: 22px;
  border-bottom: 1px solid rgba(220, 227, 236, .16);
}

.foot-brand {
  font-size: clamp(24px, 4vw, 38px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: .02em;
  color: var(--paper);
  text-decoration: none;
  transition: color .2s ease;
}

.foot-brand:hover { color: var(--cyan); }

.foot-tagline {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .24em;
  color: rgba(220, 227, 236, .6);
}

.foot-seal {
  margin-left: auto;
  padding: 5px 11px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--gold);
  border: 1px solid rgba(242, 181, 68, .5);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 7px), calc(100% - 7px) 100%, 0 100%);
}

.foot-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(22px, 3vw, 40px);
  padding: clamp(26px, 4vw, 46px) 0;
}

.foot-col { min-width: 0; }

.foot-col__title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .2em;
  color: var(--cyan);
}

.foot-list {
  display: grid;
  gap: 9px;
  list-style: none;
}

.foot-list--info { gap: 14px; }

.foot-link {
  display: inline-block;
  padding-bottom: 2px;
  font-size: 14.5px;
  color: var(--slate);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s ease, border-color .2s ease;
}

.foot-link:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.foot-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .18em;
  color: rgba(220, 227, 236, .48);
}

.foot-value {
  display: block;
  font-size: 14px;
  color: #EDF1F7;
  word-break: break-word;
}

.foot-note {
  max-width: 32ch;
  margin: 0 0 16px;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(220, 227, 236, .74);
}

.foot-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px 24px;
  padding-top: 20px;
  border-top: 1px solid rgba(220, 227, 236, .16);
}

.foot-copy {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .08em;
  color: rgba(220, 227, 236, .54);
}

/* 返回顶部 */
.kit-top {
  position: fixed;
  right: clamp(14px, 3vw, 28px);
  bottom: clamp(14px, 3vw, 28px);
  z-index: 80;
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  font-size: 16px;
  color: var(--cyan);
  background: rgba(14, 16, 22, .94);
  border: 1px solid rgba(47, 243, 224, .5);
  cursor: pointer;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity .25s ease, transform .25s ease, visibility .25s, background-color .2s ease, color .2s ease;
}

.kit-top.is-on {
  opacity: 1;
  visibility: visible;
  transform: none;
}

.kit-top:hover {
  background: var(--cyan);
  color: #06100F;
}

/* =========================================================
   通用组件
   ========================================================= */
.container {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding-inline: var(--gutter);
}

.section { padding-block: clamp(38px, 6vw, 82px); }

.stack > * + * { margin-top: clamp(14px, 2vw, 22px); }

.mono {
  font-family: var(--font-mono);
  letter-spacing: .06em;
}

.kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .28em;
  text-transform: uppercase;
  color: var(--cyan);
}

.kicker::before {
  content: "";
  width: 8px;
  height: 8px;
  background: var(--magenta);
  clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%);
}

.display {
  margin: 0;
  font-size: clamp(2.6rem, 9vw, 7.2rem);
  font-weight: 800;
  line-height: .92;
  letter-spacing: -.02em;
  color: var(--paper);
}

.display--outline {
  color: transparent;
  -webkit-text-stroke: 1.5px var(--cyan);
}

.lede {
  max-width: 62ch;
  font-size: clamp(16px, 1.6vw, 19px);
  line-height: 1.8;
  color: rgba(237, 241, 247, .82);
}

.rule {
  height: 1px;
  margin: clamp(22px, 4vw, 40px) 0;
  border: 0;
  background: linear-gradient(90deg, var(--cyan), var(--violet) 42%, transparent);
}

.annot {
  margin: 0;
  writing-mode: vertical-rl;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .34em;
  text-transform: uppercase;
  color: var(--gold);
}

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 13px 22px;
  font-family: var(--font-sans);
  font-size: 14.5px;
  font-weight: 700;
  letter-spacing: .04em;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%);
  transition: background-color .2s ease, color .2s ease, border-color .2s ease;
}

.btn--magenta { background: var(--magenta); color: #12060E; }
.btn--magenta:hover { background: #FF6FBE; }

.btn--cyan { background: var(--cyan); color: #04100F; }
.btn--cyan:hover { background: #7CF9EE; }

.btn--ghost {
  background: transparent;
  color: var(--cyan);
  border-color: rgba(47, 243, 224, .55);
}
.btn--ghost:hover {
  background: rgba(47, 243, 224, .14);
  border-color: var(--cyan);
}

.btn--paper { background: var(--paper); color: #241B14; }
.btn--paper:hover { background: #FFF6E9; }

/* 标签 / 筛选 */
.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 13px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .12em;
  color: var(--slate);
  background: rgba(220, 227, 236, .06);
  border: 1px solid rgba(220, 227, 236, .24);
  text-decoration: none;
  cursor: pointer;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%);
  transition: color .2s ease, background-color .2s ease, border-color .2s ease;
}

.chip:hover,
.chip[aria-pressed="true"] {
  color: #06100F;
  background: var(--cyan);
  border-color: var(--cyan);
}

/* 面板 */
.panel {
  position: relative;
  padding: clamp(18px, 3vw, 28px);
  color: #EDF1F7;
  background: var(--ink-soft);
  border: 1px solid rgba(122, 92, 255, .42);
  clip-path: polygon(0 0, calc(100% - 22px) 0, 100% 22px, 100% 100%, 22px 100%, 0 calc(100% - 22px));
  transition: border-color .25s ease, background-color .25s ease;
}

.panel:hover { border-color: rgba(47, 243, 224, .72); }

.panel--paper {
  color: #241B14;
  background: var(--paper);
  border-color: rgba(36, 27, 20, .22);
}

.panel--paper:hover { border-color: rgba(255, 60, 172, .62); }

/* 网格 */
.grid {
  display: grid;
  gap: clamp(18px, 3vw, 32px);
}

.grid--2 { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.grid--3 { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }

.grid--split {
  grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr);
  align-items: start;
}

/* 面包屑 */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0 0 clamp(18px, 3vw, 28px);
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .14em;
  color: rgba(220, 227, 236, .55);
}

.breadcrumb a {
  color: rgba(220, 227, 236, .82);
  text-decoration: none;
  border-bottom: 1px solid rgba(220, 227, 236, .25);
  transition: color .2s ease, border-color .2s ease;
}

.breadcrumb a:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.breadcrumb li + li::before {
  content: "/";
  margin-right: 10px;
  color: rgba(242, 181, 68, .85);
}

/* 图片容器（页面阶段放置占位图） */
.media {
  position: relative;
  margin: 0;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background:
    radial-gradient(90% 90% at 20% 10%, rgba(122, 92, 255, .45), transparent 60%),
    radial-gradient(80% 80% at 85% 90%, rgba(255, 60, 172, .35), transparent 62%),
    #11141F;
  border: 1px solid rgba(47, 243, 224, .28);
  clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 20px 100%, 0 calc(100% - 20px));
}

.media img,
.media video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(1.06) contrast(1.04);
}

.media::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(180deg, rgba(47, 243, 224, .14), transparent 42%, rgba(255, 60, 172, .18)),
    repeating-linear-gradient(180deg, rgba(10, 12, 18, .28) 0 1px, transparent 1px 4px);
  mix-blend-mode: screen;
}

.media--wide { aspect-ratio: 21 / 9; }
.media--portrait { aspect-ratio: 4 / 5; }
.media--paper { border-color: rgba(36, 27, 20, .26); }

.media__cap {
  display: block;
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .14em;
  color: rgba(220, 227, 236, .6);
}

/* =========================================================
   响应式
   ========================================================= */
@media (max-width: 1080px) {
  .head-slogan { display: none; }
}

@media (max-width: 900px) {
  :root { --head-h: 66px; }

  .head-cta { display: none; }

  .nav-toggle { display: inline-flex; }

  .site-head__inner { gap: 14px; padding-block: 8px; }

  .site-head__nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    margin-left: 0;
    padding: 18px var(--gutter) 32px;
    max-height: calc(100vh - var(--head-h));
    overflow-y: auto;
    background: linear-gradient(180deg, #0B0D14, #141A2A 68%, #1A1230);
    border-bottom: 1px solid rgba(47, 243, 224, .32);
    box-shadow: 0 26px 44px rgba(0, 0, 0, .55);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: opacity .25s ease, transform .25s ease, visibility .25s ease;
  }

  .site-head[data-open] .site-head__nav {
    opacity: 1;
    visibility: visible;
    transform: none;
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .nav-link {
    width: 100%;
    padding: 16px 4px;
    font-size: 20px;
    gap: 12px;
    border-bottom: 1px solid rgba(220, 227, 236, .12);
  }

  .nav-link::after {
    left: 4px;
    right: 4px;
    bottom: 8px;
  }

  .nav-link[aria-current="page"] {
    padding-inline: 12px;
    border-bottom-color: transparent;
  }

  .nav-list__item:last-child .nav-link { border-bottom: none; }

  .foot-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }

  .grid--split { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 620px) {
  .brand-mark__sub { display: none; }
  .brand-mark__name { font-size: 16px; }
  .foot-seal { margin-left: 0; }
  .foot-grid { grid-template-columns: minmax(0, 1fr); }
  .foot-bottom { flex-direction: column; }
  .kit-top { width: 42px; height: 42px; }
}

/* =========================================================
   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;
  }
}