/* =========================================================
   大厅游戏官网 · 共享样式 /assets/site.css
   深夜电竞大厅 × 赛博导播台：深空底、钢青描边、硬阴影
   ========================================================= */

/* ---------- 1. Reset ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

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

body,
h1, h2, h3, h4, h5, p,
ul, ol, li, figure, blockquote, dl, dt, dd {
  margin: 0;
  padding: 0;
}

ul, ol { list-style: none; }

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

a {
  color: inherit;
  text-decoration: none;
}

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

button {
  background: none;
  border: 0;
  cursor: pointer;
}

table {
  border-collapse: collapse;
  width: 100%;
}

/* ---------- 2. 变量 ---------- */
:root {
  --ink: #060A16;
  --panel: #0E1729;
  --line: #23345A;
  --cyan: #3BE3F0;
  --magenta: #FF3D9A;
  --amber: #FFC24B;
  --violet: #8A6BFF;
  --text: #C3D0E4;
  --bright: #F4F9FF;
  --green: #58F0A8;
  --dim: #7E92B5;

  --font-head: "Oswald", "Arial Narrow", "HarmonyOS Sans SC", "Source Han Sans SC", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: "Source Han Sans SC", "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", "SFMono-Regular", Menlo, Consolas, "Liberation Mono", "Courier New", monospace;

  --wrap: 1240px;
  --hard: 4px 4px 0 var(--line);
  --hard-sm: 2px 2px 0 var(--line);
}

/* ---------- 3. 基础与中文排版 ---------- */
body {
  min-height: 100vh;
  background-color: var(--ink);
  background-image:
    linear-gradient(rgba(35, 52, 90, 0.26) 1px, transparent 1px),
    linear-gradient(90deg, rgba(35, 52, 90, 0.26) 1px, transparent 1px);
  background-size: 72px 72px;
  background-position: center top;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-family: var(--font-head);
  font-weight: 700;
  color: var(--bright);
  line-height: 1.22;
  letter-spacing: 0.06em;
}

h1 { font-size: clamp(34px, 5vw, 56px); }
h2 { font-size: clamp(26px, 3.4vw, 40px); }
h3 { font-size: clamp(20px, 2.2vw, 28px); }
h4 { font-size: 20px; letter-spacing: 0.08em; }

p { line-height: 1.75; }

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

/* ---------- 4. 工具类 ---------- */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 20px;
}

.section {
  padding: clamp(40px, 6vw, 80px) 0;
  border-top: 2px solid var(--line);
}

.stack {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.cluster {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.04em;
}

.eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--cyan);
}

.lead {
  font-size: 18px;
  color: var(--bright);
}

.muted { color: var(--dim); }

.note-edge {
  writing-mode: vertical-rl;
  text-orientation: mixed;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.3em;
  color: var(--cyan);
  opacity: 0.78;
}

.status-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  animation: pulse 2.4s ease-in-out infinite;
  flex: none;
}

@keyframes pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(88, 240, 168, 0.45); }
  50% { opacity: 0.55; box-shadow: 0 0 0 6px rgba(88, 240, 168, 0); }
}

/* ---------- 5. 按钮 / 标签 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 18px;
  border: 2px solid var(--line);
  background: var(--panel);
  color: var(--bright);
  font-family: var(--font-head);
  font-size: 14px;
  letter-spacing: 0.12em;
  line-height: 1.2;
  box-shadow: var(--hard);
  transition: border-color 0.18s ease, box-shadow 0.18s ease, color 0.18s ease, background-color 0.18s ease;
}

.btn:hover,
.btn:focus-visible {
  border-color: var(--cyan);
  color: var(--cyan);
  box-shadow: var(--hard-sm);
}

.btn--gold {
  border-color: var(--amber);
  color: var(--amber);
  background: rgba(255, 194, 75, 0.06);
}

.btn--gold:hover,
.btn--gold:focus-visible {
  border-color: var(--amber);
  color: var(--ink);
  background: var(--amber);
}

.btn--cyan {
  border-color: var(--cyan);
  background: var(--cyan);
  color: #04121B;
}

.btn--cyan:hover,
.btn--cyan:focus-visible {
  background: transparent;
  color: var(--cyan);
}

.btn--ghost {
  background: transparent;
  box-shadow: none;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border: 1px solid var(--line);
  background: rgba(35, 52, 90, 0.32);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--text);
}

.chip--cyan { color: var(--cyan); border-color: rgba(59, 227, 240, 0.5); }
.chip--magenta { color: var(--magenta); border-color: rgba(255, 61, 154, 0.5); }
.chip--amber { color: var(--amber); border-color: rgba(255, 194, 75, 0.5); }
.chip--violet { color: var(--violet); border-color: rgba(138, 107, 255, 0.55); }

/* ---------- 6. Bento 面板 ---------- */
.panel {
  position: relative;
  background: var(--panel);
  border: 2px solid var(--line);
  box-shadow: var(--hard);
  padding: 20px;
}

.panel--tilt { transform: rotate(-2deg); }
.panel--tilt-r { transform: rotate(2deg); }

.panel__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 10px;
  margin-bottom: 14px;
  border-bottom: 2px solid var(--line);
}

.panel__title {
  font-family: var(--font-head);
  font-size: 18px;
  letter-spacing: 0.1em;
  color: var(--bright);
}

.panel__meta {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--cyan);
}

/* ---------- 7. 数据块 ---------- */
.stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding-left: 12px;
  border-left: 3px solid var(--cyan);
}

.stat__num {
  font-family: var(--font-mono);
  font-size: 28px;
  line-height: 1.1;
  color: var(--bright);
}

.stat__label {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--dim);
}

.stat--magenta { border-left-color: var(--magenta); }
.stat--amber { border-left-color: var(--amber); }
.stat--violet { border-left-color: var(--violet); }
.stat--green { border-left-color: var(--green); }

/* ---------- 8. 图片容器 ---------- */
.media-frame {
  position: relative;
  display: block;
  width: 100%;
  border: 2px solid var(--line);
  background-color: #080E1C;
  background-image: repeating-linear-gradient(135deg, rgba(35, 52, 90, 0.5) 0 2px, transparent 2px 9px);
  box-shadow: var(--hard);
  overflow: hidden;
}

.media-frame > img,
.media-frame > svg {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media-frame--16x9 { aspect-ratio: 16 / 9; }
.media-frame--4x3 { aspect-ratio: 4 / 3; }
.media-frame--3x4 { aspect-ratio: 3 / 4; }
.media-frame--21x9 { aspect-ratio: 21 / 9; }

.media-frame__tag {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 2;
  padding: 4px 9px;
  background: var(--cyan);
  color: #04121B;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
}

.media-frame__tag--magenta { background: var(--magenta); color: var(--bright); }
.media-frame__tag--amber { background: var(--amber); color: #1A1204; }

.media-frame__caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2;
  padding: 22px 12px 10px;
  background: linear-gradient(180deg, rgba(6, 10, 22, 0), rgba(6, 10, 22, 0.94));
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text);
}

/* ---------- 9. 网格 / 面包屑 / 正文 ---------- */
.grid-12 {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 16px;
}

.col-3 { grid-column: span 3; }
.col-4 { grid-column: span 4; }
.col-5 { grid-column: span 5; }
.col-6 { grid-column: span 6; }
.col-7 { grid-column: span 7; }
.col-8 { grid-column: span 8; }
.col-12 { grid-column: span 12; }

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 16px 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--dim);
}

.breadcrumbs a { color: var(--text); }
.breadcrumbs a:hover { color: var(--cyan); }
.breadcrumbs__sep { color: var(--line); }

.prose { max-width: 46em; }

.prose h2 { margin: 1.6em 0 0.6em; }
.prose h3 { margin: 1.4em 0 0.5em; }
.prose p { margin-bottom: 1.05em; }

.prose ul,
.prose ol {
  margin: 0 0 1.1em;
  padding-left: 1.35em;
  list-style: disc;
}

.prose ol { list-style: decimal; }
.prose li { margin-bottom: 0.4em; }

.prose a {
  color: var(--cyan);
  border-bottom: 1px solid rgba(59, 227, 240, 0.4);
}

.prose a:hover { border-bottom-color: var(--cyan); }
.prose strong { color: var(--bright); }

.prose blockquote {
  margin: 0 0 1.2em;
  padding: 6px 0 6px 16px;
  border-left: 3px solid var(--violet);
  color: var(--bright);
}

/* ---------- 10. 筛选 ---------- */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.filter-btn {
  padding: 7px 14px;
  border: 2px solid var(--line);
  background: var(--panel);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  box-shadow: var(--hard-sm);
  transition: border-color 0.18s ease, color 0.18s ease, background-color 0.18s ease, box-shadow 0.18s ease;
}

.filter-btn:hover { border-color: var(--cyan); color: var(--cyan); }

.filter-btn[aria-pressed="true"] {
  background: var(--cyan);
  border-color: var(--cyan);
  color: #04121B;
  box-shadow: 2px 2px 0 rgba(35, 52, 90, 0.9);
}

[data-filter-item] { transition: opacity 0.18s ease; }

.is-hidden { display: none !important; }

[data-filter-empty] { display: none; }
[data-filter-empty].is-shown { display: block; }

/* ---------- 11. 入场显现 ---------- */
html.js [data-reveal] {
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.42s ease, transform 0.42s ease;
}

html.js [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* ---------- 12. 头部 ---------- */
.skip-link {
  position: absolute;
  left: 12px;
  top: -80px;
  z-index: 200;
  padding: 10px 16px;
  border: 2px solid var(--bright);
  background: var(--cyan);
  color: #04121B;
  font-family: var(--font-head);
  font-size: 14px;
  letter-spacing: 0.1em;
  transition: top 0.18s ease;
}

.skip-link:focus { top: 12px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 80;
  background: rgba(6, 10, 22, 0.96);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  border-bottom: 2px solid var(--line);
}

.scroll-track {
  display: block;
  height: 2px;
  background: rgba(35, 52, 90, 0.55);
}

.scroll-track__bar {
  display: block;
  height: 2px;
  width: 100%;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--cyan), var(--violet), var(--magenta));
  will-change: transform;
}

.masthead {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  grid-template-areas: "left center right";
  align-items: center;
  gap: 18px;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 16px 20px 12px;
  transition: padding 0.24s ease;
}

.site-header[data-condensed] .masthead { padding: 8px 20px 6px; }

.masthead__side {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.masthead__side--left { grid-area: left; justify-content: flex-start; }
.masthead__side--right { grid-area: right; justify-content: flex-end; }

.util-switch {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.util-switch__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--dim);
}

.util-chip {
  padding: 3px 9px;
  border: 1px solid var(--line);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  white-space: nowrap;
}

.util-chip--on {
  border-color: var(--cyan);
  color: var(--cyan);
  background: rgba(59, 227, 240, 0.08);
}

.masthead__center {
  grid-area: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  text-align: center;
}

.masthead__kicker {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.32em;
  color: var(--magenta);
  text-transform: uppercase;
}

.masthead__brand {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(24px, 2.6vw, 34px);
  line-height: 1.1;
  letter-spacing: 0.22em;
  color: var(--bright);
  transition: color 0.18s ease;
}

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

.masthead__tagline {
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--dim);
}

.site-header[data-condensed] .masthead__kicker,
.site-header[data-condensed] .masthead__tagline { display: none; }

.nav-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border: 2px solid var(--line);
  background: var(--panel);
  color: var(--bright);
  font-family: var(--font-head);
  font-size: 13px;
  letter-spacing: 0.14em;
  box-shadow: var(--hard-sm);
}

.nav-toggle__bars {
  position: relative;
  display: block;
  width: 16px;
  height: 2px;
  background: var(--cyan);
}

.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 16px;
  height: 2px;
  background: var(--cyan);
}

.nav-toggle__bars::before { top: -5px; }
.nav-toggle__bars::after { top: 5px; }

.nav-toggle[aria-expanded="true"] {
  border-color: var(--cyan);
  color: var(--cyan);
}

.site-nav {
  position: relative;
  border-top: 2px solid var(--line);
  background: var(--panel);
}

.site-nav__list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2px;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 20px;
}

.site-nav__link {
  display: block;
  padding: 12px 16px;
  border-bottom: 3px solid transparent;
  color: var(--text);
  font-family: var(--font-head);
  font-size: 13px;
  letter-spacing: 0.16em;
  transition: color 0.18s ease, border-color 0.18s ease, background-color 0.18s ease;
}

.site-nav__link:hover {
  color: var(--cyan);
  background: rgba(59, 227, 240, 0.06);
}

.site-nav__link[aria-current="page"] {
  color: var(--bright);
  border-bottom-color: var(--cyan);
  background: linear-gradient(180deg, rgba(59, 227, 240, 0), rgba(59, 227, 240, 0.14));
}

.site-nav__cta { display: none; }

/* ---------- 13. 页脚 ---------- */
.site-footer {
  border-top: 2px solid var(--line);
  background: linear-gradient(180deg, var(--panel), var(--ink) 78%);
}

.footer__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) repeat(3, minmax(0, 0.85fr)) minmax(0, 1.35fr);
  gap: 28px;
  padding-top: 48px;
  padding-bottom: 36px;
}

.footer__mark {
  font-family: var(--font-head);
  font-size: 20px;
  letter-spacing: 0.2em;
  color: var(--bright);
}

.footer__tagline {
  margin-top: 8px;
  font-size: 13px;
  color: var(--dim);
  max-width: 22em;
}

.footer__status {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--green);
}

.footer__col-title {
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--line);
  font-family: var(--font-head);
  font-size: 14px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.footer__list {
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.footer__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text);
  transition: color 0.18s ease;
}

.footer__link::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--line);
  flex: none;
  transition: background-color 0.18s ease;
}

.footer__link:hover { color: var(--cyan); }
.footer__link:hover::before { background: var(--cyan); }
.footer__link[aria-current="page"] { color: var(--cyan); }
.footer__link[aria-current="page"]::before { background: var(--cyan); }

.footer__contact {
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 13px;
}

.copy-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.copy-value {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--bright);
  word-break: break-all;
}

.copy-btn {
  padding: 3px 8px;
  border: 1px solid var(--line);
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  transition: color 0.18s ease, border-color 0.18s ease;
}

.copy-btn:hover { border-color: var(--cyan); }

.copy-btn[data-copied] {
  color: var(--green);
  border-color: var(--green);
}

.footer__note {
  font-size: 12px;
  color: var(--dim);
  line-height: 1.7;
}

.footer__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-top: 16px;
  padding-bottom: 24px;
  border-top: 2px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--dim);
}

.footer__meta-link {
  color: var(--text);
  border-bottom: 1px solid var(--line);
}

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

/* ---------- 14. 响应式 ---------- */
@media (max-width: 1080px) {
  .footer__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 28px 24px;
  }
  .footer__brand { grid-column: 1 / -1; }
}

@media (max-width: 900px) {
  body { padding-bottom: 64px; }

  .masthead {
    grid-template-columns: minmax(0, 1fr) auto;
    grid-template-areas:
      "center right"
      "left left";
    gap: 10px;
    padding: 10px 16px 8px;
  }

  .masthead__center {
    align-items: flex-start;
    text-align: left;
  }

  .masthead__brand {
    font-size: 22px;
    letter-spacing: 0.16em;
  }

  .masthead__tagline { display: none; }
  .masthead__side--left { justify-content: flex-start; }
  .nav-toggle { display: inline-flex; }

  .site-nav {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    top: auto;
    z-index: 90;
    border-top: 2px solid var(--line);
    box-shadow: 0 -10px 28px rgba(0, 0, 0, 0.6);
    padding-bottom: env(safe-area-inset-bottom, 0px);
  }

  .site-nav__list {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0;
    max-width: none;
    padding: 0;
  }

  .site-nav__item { display: none; }
  .site-nav__item:nth-child(-n + 4) { display: block; }

  .site-nav__link {
    padding: 14px 4px;
    border-bottom: 0;
    border-top: 3px solid transparent;
    font-size: 11px;
    letter-spacing: 0.02em;
    text-align: center;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .site-nav__link[aria-current="page"] {
    border-bottom-color: transparent;
    border-top-color: var(--cyan);
    background: rgba(59, 227, 240, 0.12);
  }

  .site-nav[data-open] .site-nav__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .site-nav[data-open] .site-nav__item { display: block; }

  .site-nav[data-open] .site-nav__link {
    padding: 14px 16px;
    border-top: 0;
    border-left: 3px solid transparent;
    font-size: 13px;
    letter-spacing: 0.1em;
    text-align: left;
  }

  .site-nav[data-open] .site-nav__link[aria-current="page"] {
    border-left-color: var(--cyan);
    border-top-color: transparent;
  }

  .site-nav[data-open] .site-nav__cta {
    display: inline-flex;
    margin: 12px 16px 16px;
  }
}

@media (max-width: 720px) {
  .masthead__cta { display: none; }

  .util-switch__label { display: none; }

  .footer__meta { justify-content: flex-start; }
}

@media (max-width: 560px) {
  .footer__grid { grid-template-columns: 1fr; }

  .grid-12 { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .col-3, .col-4, .col-5, .col-6, .col-7, .col-8 { grid-column: span 6; }
}

/* ---------- 15. 无障碍与动效偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

  html.js [data-reveal] {
    opacity: 1;
    transform: none;
  }

  .scroll-track__bar { transition: none; }
}