/* =========================================================
   万能真人娱乐 · 共享外壳与基础组件  /assets/site.css
   ========================================================= */

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

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

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

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

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

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

table { border-collapse: collapse; }

[hidden] { display: none !important; }

/* ---------- 2. Design Tokens ---------- */
:root {
  --ink-900: #050A14;
  --ink-800: #0A1426;
  --ink-700: #122238;
  --ink-600: #1B3352;

  --neon: #35E3E0;
  --neon-deep: #24C7CE;
  --neon-08: rgba(53, 227, 224, 0.08);
  --neon-16: rgba(53, 227, 224, 0.16);
  --neon-28: rgba(53, 227, 224, 0.28);

  --amber: #F2B441;
  --amber-12: rgba(242, 180, 65, 0.12);
  --amber-38: rgba(242, 180, 65, 0.38);

  --paper: #F3EDE2;
  --paper-ink: #16202E;
  --paper-link: #0C6B77;

  --mist: #A9B7CC;
  --glass: rgba(20, 40, 70, 0.45);
  --text: #E4ECF7;

  --rail-w: 276px;
  --shell-max: 1180px;
  --gutter: clamp(18px, 4vw, 40px);
  --radius: 14px;
  --radius-sm: 10px;

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

/* ---------- 3. Base & 中文排版 ---------- */
body {
  min-height: 100vh;
  background-color: var(--ink-800);
  background-image:
    radial-gradient(1100px 620px at 88% -6%, rgba(53, 227, 224, 0.10), transparent 62%),
    radial-gradient(900px 540px at 4% 104%, rgba(242, 180, 65, 0.07), transparent 60%);
  background-attachment: fixed;
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.85;
  font-weight: 400;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  color: #F2F6FC;
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.022em;
  margin-bottom: 0.5em;
}

h1 { font-size: clamp(2.5rem, 7vw, 4.6rem); letter-spacing: -0.035em; }
h2 { font-size: clamp(1.85rem, 4.2vw, 2.6rem); }
h3 { font-size: clamp(1.2rem, 2.4vw, 1.45rem); }
h4 { font-size: 1.05rem; }

p { margin-bottom: 1.1em; }

a {
  color: var(--neon);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover { color: #7FF3F1; }

strong, b { font-weight: 700; color: #F2F6FC; }

hr {
  border: 0;
  border-top: 1px solid var(--neon-16);
  margin: clamp(24px, 4vw, 44px) 0;
}

::selection {
  background: var(--neon);
  color: #04121A;
}

#main-content { scroll-margin-top: 84px; }

/* ---------- 4. 焦点与可见性 ---------- */
:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: 3px;
  border-radius: 4px;
}

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

.skip-link {
  position: fixed;
  left: 14px;
  top: -120px;
  z-index: 200;
  padding: 10px 20px;
  border-radius: 8px;
  background: var(--neon);
  color: #04121A;
  font-weight: 700;
  font-size: 15px;
  text-decoration: none;
  box-shadow: 0 12px 30px -12px rgba(53, 227, 224, 0.9);
  transition: top 0.2s ease;
}

.skip-link:focus { top: 14px; color: #04121A; }

/* ---------- 5. 布局工具 ---------- */
.shell {
  width: 100%;
  max-width: var(--shell-max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.stack > * + * { margin-top: 1.1em; }

.grid {
  display: grid;
  gap: clamp(16px, 2.4vw, 26px);
}

.grid--2 { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.grid--3 { grid-template-columns: repeat(auto-fit, minmax(214px, 1fr)); }

.mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.22em;
  color: var(--amber);
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  display: block;
  width: 26px;
  height: 1px;
  background: var(--amber);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 11px;
  border: 1px solid var(--neon-28);
  border-radius: 999px;
  background: var(--neon-08);
  color: var(--neon);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  white-space: nowrap;
}

.tag--amber {
  border-color: var(--amber-38);
  background: var(--amber-12);
  color: var(--amber);
}

.prose { max-width: 68ch; }
.prose p { margin-bottom: 1.15em; }
.prose ul, .prose ol {
  list-style: disc;
  padding-left: 1.35em;
  margin-bottom: 1.15em;
}
.prose ol { list-style: decimal; }
.prose li { margin-bottom: 0.4em; }

/* ---------- 6. 面板 ---------- */
.panel {
  position: relative;
  padding: clamp(20px, 3vw, 34px);
  border: 1px solid var(--neon-16);
  border-radius: var(--radius);
  background: var(--ink-700);
}

.panel--glass {
  background: var(--glass);
  border-color: var(--neon-28);
  -webkit-backdrop-filter: blur(12px) saturate(120%);
  backdrop-filter: blur(12px) saturate(120%);
}

.panel--paper {
  background: var(--paper);
  color: var(--paper-ink);
  border-color: rgba(22, 32, 46, 0.14);
}

.panel--paper h1,
.panel--paper h2,
.panel--paper h3,
.panel--paper h4 { color: var(--paper-ink); }

.panel--paper a { color: var(--paper-link); }
.panel--paper a:hover { color: #08515B; }
.panel--paper strong { color: #0B1520; }

/* ---------- 7. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 22px;
  border: 1px solid transparent;
  border-radius: 999px;
  background: transparent;
  color: var(--text);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.2s ease, background-color 0.2s ease,
    border-color 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
}

.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn--primary {
  background: linear-gradient(120deg, var(--neon), var(--neon-deep));
  color: #04121A;
  box-shadow: 0 14px 34px -16px rgba(53, 227, 224, 0.9);
}
.btn--primary:hover { color: #04121A; }

.btn--ghost {
  border-color: var(--neon-28);
  background: var(--neon-08);
  color: var(--neon);
}
.btn--ghost:hover {
  border-color: var(--neon);
  background: rgba(53, 227, 224, 0.16);
  color: #8CF5F3;
}

.btn--amber {
  border-color: var(--amber-38);
  background: var(--amber-12);
  color: var(--amber);
}
.btn--amber:hover {
  border-color: var(--amber);
  background: rgba(242, 180, 65, 0.2);
}

/* ---------- 8. 面包屑 ---------- */
.breadcrumb {
  margin-bottom: 18px;
  font-size: 13px;
  color: var(--mist);
}

.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.breadcrumb li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.breadcrumb li + li::before {
  content: "/";
  color: rgba(169, 183, 204, 0.45);
}

.breadcrumb a {
  color: var(--mist);
  text-decoration: none;
}
.breadcrumb a:hover { color: var(--neon); }
.breadcrumb [aria-current="page"] { color: var(--amber); }

/* ---------- 9. 图片容器 ---------- */
.media {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  border: 1px solid var(--neon-16);
  border-radius: var(--radius);
  background:
    linear-gradient(140deg, var(--ink-700) 0%, var(--ink-900) 100%);
}

.media > img,
.media > picture > img,
.media > video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: inherit;
}

.media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    115deg,
    transparent 38%,
    rgba(53, 227, 224, 0.24) 50%,
    transparent 62%
  );
  transform: translateX(-130%);
  transition: transform 0.8s ease;
  pointer-events: none;
}

.media:hover::after { transform: translateX(130%); }

.media--wide { aspect-ratio: 21 / 9; }
.media--tall { aspect-ratio: 3 / 4; }
.media--square { aspect-ratio: 1 / 1; }

.media-caption {
  margin-top: 10px;
  font-size: 14px;
  color: var(--mist);
}

/* ---------- 10. 标签页 ---------- */
.tab-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 22px;
  padding: 6px;
  border: 1px solid var(--neon-16);
  border-radius: 999px;
  background: rgba(18, 34, 56, 0.72);
}

.tab {
  appearance: none;
  border: 1px solid transparent;
  border-radius: 999px;
  background: transparent;
  color: var(--mist);
  padding: 9px 20px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition: color 0.22s ease, background-color 0.22s ease,
    box-shadow 0.22s ease;
}

.tab:hover {
  color: #EAF4FF;
  background: var(--neon-08);
}

.tab[aria-selected="true"] {
  color: #04121A;
  background: linear-gradient(120deg, var(--neon), var(--neon-deep));
  box-shadow: 0 10px 24px -14px rgba(53, 227, 224, 0.95);
}

.tab-panels { position: relative; }

.tab-panel { animation: tab-in 0.22s ease-out; }

@keyframes tab-in {
  from { opacity: 0; transform: translateX(14px); }
  to { opacity: 1; transform: none; }
}

/* ---------- 11. 滚动显现 ---------- */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.55s ease,
    transform 0.6s cubic-bezier(0.22, 0.7, 0.3, 1);
}

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

/* ---------- 12. 站点头部 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(5, 10, 20, 0.9);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--neon-16);
}

.site-header::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 1;
  background: rgba(5, 10, 20, 0.66);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.28s ease, visibility 0.28s ease;
}

.site-header[data-open]::after {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.header-bar {
  position: relative;
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  max-width: var(--shell-max);
  margin-inline: auto;
  padding: 12px var(--gutter);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  color: var(--text);
  text-decoration: none;
}

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

.brand-mark {
  flex: none;
  width: 14px;
  height: 14px;
  border-radius: 3px;
  transform: rotate(45deg);
  background: linear-gradient(135deg, var(--neon), var(--amber));
  box-shadow: 0 0 16px rgba(53, 227, 224, 0.55);
}

.brand-text {
  font-size: 17px;
  font-weight: 800;
  letter-spacing: -0.01em;
  white-space: nowrap;
}

.brand-sub {
  margin-left: 6px;
  font-size: 13px;
  font-weight: 500;
  color: var(--mist);
}

.header-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-left: auto;
}

.version-badge {
  padding: 3px 11px;
  border: 1px solid var(--amber-38);
  border-radius: 999px;
  background: var(--amber-12);
  color: var(--amber);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.06em;
  white-space: nowrap;
  transition: transform 0.2s ease;
}

.version-badge:hover { transform: translateX(2px); }

.header-cta {
  display: inline-flex;
  align-items: center;
  padding: 8px 17px;
  border-radius: 999px;
  background: linear-gradient(120deg, var(--neon), var(--neon-deep));
  color: #04121A;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.header-cta:hover {
  color: #04121A;
  transform: translateY(-2px);
  box-shadow: 0 12px 28px -14px rgba(53, 227, 224, 0.95);
}

.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  padding: 0;
  border: 1px solid var(--neon-28);
  border-radius: var(--radius-sm);
  background: rgba(18, 34, 56, 0.72);
  color: var(--neon);
  cursor: pointer;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.nav-toggle:hover {
  border-color: var(--neon);
  background: rgba(53, 227, 224, 0.12);
}

.nav-toggle-bars {
  position: relative;
  display: block;
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: background-color 0.22s ease;
}

.nav-toggle-bars::before,
.nav-toggle-bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: transform 0.22s ease, top 0.22s ease;
}

.nav-toggle-bars::before { top: -6px; }
.nav-toggle-bars::after { top: 6px; }

.site-header[data-open] .nav-toggle-bars { background: transparent; }
.site-header[data-open] .nav-toggle-bars::before { top: 0; transform: rotate(45deg); }
.site-header[data-open] .nav-toggle-bars::after { top: 0; transform: rotate(-45deg); }

/* ---------- 13. 导航 ---------- */
.site-nav {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  z-index: 2;
  display: flex;
  flex-direction: column;
  width: min(84vw, 340px);
  padding: 88px 0 32px;
  overflow-y: auto;
  background: linear-gradient(180deg, #0A1426 0%, #050A14 100%);
  border-left: 1px solid var(--neon-28);
  transform: translateX(102%);
  transition: transform 0.28s cubic-bezier(0.22, 0.7, 0.3, 1);
}

.site-header[data-open] .site-nav { transform: translateX(0); }

.nav-list {
  counter-reset: nav-item;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.nav-list li { counter-increment: nav-item; }

.nav-list a {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 12px 22px;
  border-left: 2px solid transparent;
  color: var(--mist);
  font-size: 15px;
  font-weight: 500;
  text-decoration: none;
  transition: color 0.2s ease, background-color 0.2s ease,
    border-color 0.2s ease;
}

.nav-list a::before {
  content: counter(nav-item, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: rgba(169, 183, 204, 0.55);
  transition: color 0.2s ease;
}

.nav-list a:hover {
  color: #EAF4FF;
  background: var(--neon-08);
}

.nav-list a[aria-current="page"] {
  color: var(--neon);
  border-left-color: var(--neon);
  background: linear-gradient(90deg, rgba(53, 227, 224, 0.18), transparent 88%);
}

.nav-list a[aria-current="page"]::before { color: var(--amber); }

.nav-cta { display: none; }

/* ---------- 14. 页脚 ---------- */
.site-footer {
  margin-top: clamp(52px, 8vw, 110px);
  padding: clamp(38px, 5vw, 66px) 0 26px;
  border-top: 1px solid var(--neon-28);
  background:
    radial-gradient(720px 340px at 10% 0%, rgba(53, 227, 224, 0.12), transparent 66%),
    linear-gradient(180deg, #070F1C 0%, var(--ink-900) 100%);
  color: var(--mist);
  font-size: 15px;
}

.footer-inner {
  width: 100%;
  max-width: var(--shell-max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3vw, 40px);
}

.footer-brand {
  margin-bottom: 8px;
  color: #F2F6FC;
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.footer-version {
  margin-bottom: 16px;
  color: var(--amber);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
}

.footer-contact {
  max-width: 34ch;
  color: var(--mist);
  font-size: 14px;
  line-height: 1.9;
}

.footer-col-title {
  margin-bottom: 14px;
  color: var(--neon);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
}

.footer-nav {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.footer-link {
  display: inline-block;
  padding: 4px 0;
  color: var(--mist);
  font-size: 15px;
  text-decoration: none;
  transition: color 0.2s ease, transform 0.2s ease;
}

.footer-link:hover {
  color: var(--neon);
  transform: translateX(4px);
}

.footer-base {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px 24px;
  margin-top: clamp(28px, 4vw, 50px);
  padding-top: 20px;
  border-top: 1px solid var(--neon-16);
  font-size: 13px;
}

.footer-addr { margin: 0; color: rgba(169, 183, 204, 0.9); }

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin: 0;
  color: rgba(169, 183, 204, 0.9);
}

.footer-legal .mono { color: var(--neon); }

/* ---------- 15. 平板微调 ---------- */
@media (min-width: 560px) {
  .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-brand-col { grid-column: 1 / -1; }
}

@media (max-width: 599px) {
  .header-cta { display: none; }

  .nav-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin: 18px 22px 0;
    padding: 11px 20px;
    border-radius: 999px;
    background: linear-gradient(120deg, var(--neon), var(--neon-deep));
    color: #04121A;
    font-size: 15px;
    font-weight: 700;
    text-decoration: none;
  }

  .nav-cta:hover { color: #04121A; }
}

@media (max-width: 419px) {
  .brand-sub { display: none; }
}

/* ---------- 16. 桌面：侧边轨道导航 ---------- */
@media (min-width: 900px) {
  .footer-grid { grid-template-columns: 1.7fr 1fr 1fr 1fr; }
  .footer-brand-col { grid-column: auto; }
}

@media (min-width: 1024px) {
  body { padding-left: var(--rail-w); }

  #main-content { scroll-margin-top: 24px; }

  .site-header {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 60;
    display: flex;
    flex-direction: column;
    width: var(--rail-w);
    height: 100vh;
    padding: 28px 0 26px;
    overflow-y: auto;
    border-right: 1px solid var(--neon-16);
    border-bottom: 0;
    background: linear-gradient(180deg, #050A14 0%, #0A1426 55%, #060D18 100%);
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
  }

  .site-header::after { display: none; }

  .header-bar {
    display: block;
    max-width: none;
    margin: 0;
    padding: 0 24px 20px;
    border-bottom: 1px solid rgba(53, 227, 224, 0.12);
  }

  .brand { display: flex; flex-wrap: wrap; gap: 8px; }

  .brand-text { font-size: 19px; }

  .brand-sub { display: block; margin-left: 0; font-size: 12px; }

  .header-meta {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    margin: 18px 0 0;
  }

  .header-cta {
    padding: 10px 20px;
    font-size: 14px;
  }

  .nav-toggle { display: none; }

  .site-nav {
    position: static;
    z-index: auto;
    width: auto;
    height: auto;
    flex: 1 1 auto;
    padding: 22px 0 0;
    overflow: visible;
    transform: none;
    border-left: 0;
    background: none;
    transition: none;
  }

  .nav-list { gap: 0; }

  .nav-list a { padding: 12px 24px; }

  .nav-cta { display: none; }
}

/* ---------- 17. 减少动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }

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

  .media::after { display: none; }

  .btn:hover,
  .header-cta:hover,
  .version-badge:hover,
  .footer-link:hover {
    transform: none;
  }
}