/* =========================================================
   超凡娱乐汇 / assets/site.css
   共享外壳：reset、变量、中文排版、页头、页脚、通用组件
   ========================================================= */

*, *::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, dd { margin: 0; }
ul, ol { padding: 0; list-style: none; }
img, svg { 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; }

:root {
  --ink: #0A0F2C;
  --panel: #141A3F;
  --violet: #A46BFF;
  --cyan: #35E0E8;
  --gold: #F3B94A;
  --white: #EEF1FF;
  --muted: #99A2C9;
  --mid: #2B2F7A;
  --ok: #3FD69A;
  --warn: #FF6B57;

  --max: 1240px;
  --gutter: clamp(18px, 4vw, 56px);
  --rail-top: 104px;

  --font-sans: "Noto Sans SC", "Source Han Sans SC", "思源黑体", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", "IBM Plex Mono", ui-monospace, SFMono-Regular, Consolas, "Sarasa Mono SC", monospace;

  --ease-out: cubic-bezier(.22, .61, .36, 1);
}

body {
  min-height: 100vh;
  overflow-x: hidden;
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.9;
  color: var(--white);
  background-color: var(--ink);
  background-image:
    radial-gradient(900px 620px at 84% -10%, rgba(164, 107, 255, .22), transparent 62%),
    radial-gradient(760px 520px at 4% 2%, rgba(53, 224, 232, .12), transparent 58%),
    radial-gradient(680px 680px at 50% 120%, rgba(43, 47, 122, .55), transparent 70%);
  background-attachment: fixed, fixed, fixed;
}

h1, h2, h3, h4 { font-weight: 800; line-height: 1.25; letter-spacing: .02em; }

::selection { background: rgba(164, 107, 255, .45); color: #fff; }

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

main { display: block; }
#main-content { scroll-margin-top: 128px; }

/* ---------- 跳至主要内容 ---------- */
.skip-link {
  position: absolute;
  left: 16px;
  top: -80px;
  z-index: 200;
  padding: 12px 22px;
  background: var(--cyan);
  color: #04121A;
  font-weight: 800;
  font-size: 14px;
  letter-spacing: .1em;
  transition: top .24s var(--ease-out);
}
.skip-link:focus { top: 14px; }

/* ---------- 页头 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 80;
  background: rgba(10, 15, 44, .9);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(164, 107, 255, .22);
}

.header-rail {
  max-height: 150px;
  overflow: hidden;
  border-bottom: 1px solid rgba(153, 162, 201, .14);
  transition: max-height .42s var(--ease-out), opacity .3s ease, border-color .3s ease;
}
.site-header.is-condensed .header-rail {
  max-height: 0;
  opacity: 0;
  border-bottom-color: transparent;
}

.header-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px clamp(18px, 3vw, 44px);
  width: 100%;
  max-width: var(--max);
  margin-inline: auto;
  padding: 14px var(--gutter);
}

.brand-block { display: flex; flex-direction: column; gap: 2px; }

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 22px;
  font-weight: 900;
  letter-spacing: .1em;
  color: var(--white);
}
.brand-mark {
  position: relative;
  flex: 0 0 auto;
  width: 26px;
  height: 26px;
  background: linear-gradient(135deg, var(--violet), var(--cyan));
  clip-path: polygon(0 0, 100% 0, 100% 66%, 66% 100%, 0 100%);
}
.brand-mark::after {
  content: "";
  position: absolute;
  inset: 6px;
  background: var(--ink);
  clip-path: polygon(0 0, 100% 0, 100% 62%, 62% 100%, 0 100%);
}
.brand-name { white-space: nowrap; }
.brand-note {
  font-size: 13px;
  line-height: 1.7;
  letter-spacing: .08em;
  color: var(--muted);
}

.header-meta {
  display: flex;
  align-items: center;
  gap: 22px;
  margin-left: auto;
  font-size: 13px;
  color: var(--muted);
}
.header-status { display: inline-flex; align-items: center; gap: 8px; letter-spacing: .06em; }
.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--ok);
  box-shadow: 0 0 0 4px rgba(63, 214, 154, .16);
}
.header-help {
  padding-bottom: 2px;
  color: var(--cyan);
  letter-spacing: .06em;
  border-bottom: 1px solid rgba(53, 224, 232, .38);
  transition: color .24s ease, border-color .24s ease;
}
.header-help:hover { color: var(--white); border-bottom-color: var(--white); }

.nav-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  margin-left: auto;
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--white);
  border: 1px solid rgba(164, 107, 255, .45);
}
.nav-toggle-bars { display: grid; gap: 4px; }
.nav-toggle-bar {
  display: block;
  width: 16px;
  height: 2px;
  background: var(--cyan);
  transition: transform .28s var(--ease-out), opacity .28s ease;
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:first-child { transform: translateY(3px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:last-child { transform: translateY(-3px) rotate(-45deg); }
.nav-toggle-text { line-height: 1; }

/* ---------- 主导航 ---------- */
.site-nav { position: relative; }
.nav-inner {
  display: flex;
  align-items: stretch;
  gap: 24px;
  width: 100%;
  max-width: var(--max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.nav-list { display: flex; flex: 1; flex-wrap: wrap; gap: 4px; }
.nav-item { display: flex; }

.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 14px 18px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .12em;
  color: var(--muted);
  transition: color .24s ease, background-color .24s ease;
}
.nav-link:hover { color: var(--white); background: rgba(164, 107, 255, .14); }
.nav-link[aria-current="page"] {
  color: #fff;
  background: linear-gradient(180deg, rgba(164, 107, 255, .36), rgba(164, 107, 255, .06));
}
.nav-link[aria-current="page"]::before {
  content: "";
  position: absolute;
  left: 3px;
  top: 10px;
  bottom: 10px;
  width: 3px;
  background: var(--violet);
  transform: skewX(-14deg);
}
.nav-link::after {
  content: attr(data-tip);
  position: absolute;
  left: 50%;
  top: calc(100% + 8px);
  padding: 6px 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--muted);
  white-space: nowrap;
  background: var(--panel);
  border: 1px solid rgba(164, 107, 255, .38);
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 6px);
  transition: opacity .24s ease, transform .24s var(--ease-out);
}
.nav-link:hover::after,
.nav-link:focus-visible::after { opacity: 1; transform: translate(-50%, 0); }

.nav-tail {
  display: flex;
  align-items: center;
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--muted);
}
.nav-version {
  padding: 4px 10px;
  color: var(--gold);
  border: 1px solid rgba(243, 185, 74, .42);
}

.read-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  background: rgba(153, 162, 201, .12);
  pointer-events: none;
}
.read-progress span {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--violet), var(--cyan) 60%, var(--gold));
  transition: width .15s linear;
}

/* ---------- 页脚 ---------- */
.site-footer {
  margin-top: clamp(64px, 9vw, 148px);
  border-top: 1px solid rgba(164, 107, 255, .22);
  background: linear-gradient(180deg, rgba(20, 26, 63, .34), rgba(20, 26, 63, .88));
}
.footer-inner {
  width: 100%;
  max-width: var(--max);
  margin-inline: auto;
  padding: clamp(44px, 6vw, 78px) var(--gutter) 28px;
}
.footer-top {
  display: grid;
  grid-template-columns: minmax(220px, 1fr) minmax(0, 2.2fr);
  gap: clamp(28px, 5vw, 76px);
}
.footer-brand .brand { font-size: 20px; }
.footer-tagline {
  margin-top: 14px;
  max-width: 30ch;
  font-size: 14px;
  line-height: 1.85;
  color: var(--muted);
}
.footer-cols {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(22px, 3vw, 46px);
}
.footer-col-title {
  margin-bottom: 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .2em;
  color: var(--cyan);
}
.footer-links { display: grid; gap: 10px; font-size: 15px; }
.footer-links a { color: var(--muted); transition: color .2s ease, padding-left .2s ease; }
.footer-links a:hover { color: var(--white); padding-left: 4px; }

.footer-contact { display: grid; gap: 12px; font-size: 14px; }
.footer-contact li { display: grid; gap: 2px; }
.footer-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--muted);
}
.footer-mono {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: .02em;
  color: var(--white);
  word-break: break-all;
}
.footer-note {
  margin-top: 16px;
  font-size: 13px;
  line-height: 1.85;
  color: var(--muted);
}
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 28px;
  margin-top: clamp(36px, 5vw, 62px);
  padding-top: 20px;
  font-size: 13px;
  color: var(--muted);
  border-top: 1px solid rgba(153, 162, 201, .16);
}
.footer-legal { font-family: var(--font-mono); letter-spacing: .08em; }

/* ---------- 布局容器与网格 ---------- */
.container {
  width: 100%;
  max-width: var(--max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.page-shell {
  display: grid;
  grid-template-columns: minmax(190px, 250px) minmax(0, 1fr);
  gap: clamp(26px, 4vw, 68px);
  align-items: start;
  padding-block: clamp(34px, 5vw, 72px);
}
.rail { position: sticky; top: var(--rail-top); }

.section { padding-block: clamp(44px, 6vw, 96px); }
.section-head { margin-bottom: clamp(20px, 3vw, 38px); }

.grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(18px, 2.4vw, 32px); }
.grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(16px, 2vw, 28px); }

/* ---------- 排版与标识组件 ---------- */
.display {
  font-size: clamp(40px, 7vw, 104px);
  font-weight: 900;
  line-height: 1.02;
  letter-spacing: .06em;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--cyan);
}
.eyebrow::before { content: ""; width: 24px; height: 1px; background: currentColor; }

.band {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 22px;
  padding: 10px 18px;
  background: linear-gradient(90deg, rgba(164, 107, 255, .24), rgba(20, 26, 63, 0) 78%);
  border-left: 3px solid var(--violet);
}
.band-num { font-family: var(--font-mono); font-size: 13px; letter-spacing: .22em; color: var(--violet); }
.band-title { font-size: 15px; font-weight: 700; letter-spacing: .14em; }
.band-note {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--muted);
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--violet);
  border: 1px solid rgba(164, 107, 255, .42);
}
.tag--gold { color: var(--gold); border-color: rgba(243, 185, 74, .42); }
.tag--cyan { color: var(--cyan); border-color: rgba(53, 224, 232, .42); }
.tag--warn { color: var(--warn); border-color: rgba(255, 107, 87, .45); }
.tag--ok { color: var(--ok); border-color: rgba(63, 214, 154, .45); }

.state-ok { color: var(--ok); }
.state-warn { color: var(--warn); }

.prose { max-width: 38em; font-size: 17px; line-height: 1.9; }
.prose p + p { margin-top: 1.1em; }
.prose h2, .prose h3 { margin-block: 1.6em .6em; }

/* ---------- 面板与按钮 ---------- */
.panel { padding: clamp(20px, 2.6vw, 34px); background: var(--panel); }
.cutout { clip-path: polygon(0 0, calc(100% - 24px) 0, 100% 24px, 100% 100%, 0 100%); }
.cutout-left { clip-path: polygon(24px 0, 100% 0, 100% 100%, 0 100%, 0 24px); }

.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 26px;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--white);
  border: 1px solid rgba(153, 162, 201, .3);
  transition: color .24s ease, border-color .24s ease, background-color .24s ease, transform .24s var(--ease-out);
}
.btn::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .3s var(--ease-out);
}
.btn:hover { transform: translateY(-2px); }
.btn:hover::after { transform: scaleX(1); }

.btn-primary {
  color: #fff;
  border-color: transparent;
  background: linear-gradient(118deg, var(--violet), #6E48D8);
}
.btn-ghost { color: var(--cyan); border-color: rgba(53, 224, 232, .5); }
.btn-ghost:hover { background: rgba(53, 224, 232, .1); }
.btn-gold {
  color: #20180A;
  border-color: transparent;
  background: linear-gradient(118deg, var(--gold), #E0912A);
}
.btn-gold:hover { color: #140E04; }

/* ---------- 面包屑 ---------- */
.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding-block: 18px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--muted);
}
.breadcrumbs a { transition: color .2s ease; }
.breadcrumbs a:hover { color: var(--cyan); }
.breadcrumbs li + li::before { content: "/"; margin-right: 10px; color: rgba(153, 162, 201, .5); }
.breadcrumbs [aria-current="page"] { color: var(--white); }

/* ---------- 数据表格 ---------- */
.table-wrap { width: 100%; overflow-x: auto; }
.data-table { width: 100%; border-collapse: collapse; font-size: 15px; }
.data-table th {
  padding: 12px 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .16em;
  text-align: left;
  color: var(--muted);
  border-bottom: 1px solid rgba(153, 162, 201, .28);
}
.data-table td {
  padding: 14px 16px;
  color: var(--white);
  border-bottom: 1px solid rgba(153, 162, 201, .12);
}
.data-table tbody tr { transition: background-color .2s ease; }
.data-table tbody tr:hover { background: rgba(164, 107, 255, .12); }
.data-table .num { font-family: var(--font-mono); color: var(--cyan); }
.data-table .gold { color: var(--gold); }

/* ---------- 可展开内容组 ---------- */
.accordion-item {
  margin-bottom: 10px;
  background: var(--panel);
  border-left: 2px solid rgba(164, 107, 255, .45);
}
.accordion-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  padding: 18px 22px;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: .04em;
  text-align: left;
  color: var(--white);
  transition: color .2s ease, background-color .2s ease;
}
.accordion-trigger:hover { background: rgba(164, 107, 255, .12); }
.accordion-trigger::after {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--cyan);
}
.accordion-trigger[aria-expanded="true"]::after { content: "–"; color: var(--violet); }
.accordion-panel { padding: 0 22px 22px; font-size: 16px; color: var(--muted); }
.accordion-panel:not([hidden]) { animation: panelIn .32s var(--ease-out) both; }
@keyframes panelIn {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: none; }
}

/* ---------- 图片容器基础规则 ---------- */
.media {
  position: relative;
  display: block;
  overflow: hidden;
  background: linear-gradient(160deg, var(--panel), var(--ink) 72%);
  border: 1px solid rgba(164, 107, 255, .22);
}
.media img { width: 100%; height: 100%; object-fit: cover; }
.media::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(205deg, rgba(164, 107, 255, .2), transparent 46%);
}
.media--wide { aspect-ratio: 16 / 9; }
.media--tall { aspect-ratio: 3 / 4; }
.media--square { aspect-ratio: 1 / 1; }
.media-caption {
  display: block;
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--muted);
}

/* ---------- 渐显 ---------- */
.js-reveal [data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .48s var(--ease-out), transform .48s var(--ease-out);
}
.js-reveal [data-reveal].is-visible { opacity: 1; transform: none; }

/* ---------- 响应式 ---------- */
@media (max-width: 1040px) {
  .page-shell { grid-template-columns: 1fr; }
  .rail { position: static; top: auto; }
}

@media (max-width: 1080px) {
  .footer-top { grid-template-columns: 1fr; }
  .footer-cols { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 960px) {
  .header-meta { display: none; }
  .nav-toggle { display: inline-flex; }

  .site-nav {
    max-height: 0;
    overflow: hidden;
    transition: max-height .42s var(--ease-out);
  }
  [data-header][data-open="true"] .site-nav {
    max-height: min(74vh, 560px);
    overflow-y: auto;
  }
  .nav-inner { flex-direction: column; gap: 0; padding-bottom: 14px; }
  .nav-list { flex-direction: column; flex-wrap: nowrap; width: 100%; }
  .nav-item { width: 100%; }
  .nav-link { width: 100%; padding: 15px 12px; font-size: 16px; }
  .nav-link::after { display: none; }
  .nav-tail { width: 100%; margin: 6px 0 0; padding-top: 12px; border-top: 1px solid rgba(153, 162, 201, .16); }
}

@media (max-width: 760px) {
  body { font-size: 16px; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .band { flex-wrap: wrap; gap: 10px; }
  .band-note { margin-left: 0; }
  .footer-cols { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 520px) {
  .brand { font-size: 19px; }
  .brand-note { font-size: 12px; }
  .btn { width: 100%; justify-content: center; }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js-reveal [data-reveal] { opacity: 1; transform: none; transition: none; }
  .site-header .header-rail { transition: none; }
  .read-progress span { transition: none; }
  .accordion-panel:not([hidden]) { animation: none; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
}