/* ============================================================
   /assets/site.css — 冠军娱乐会馆 共享外壳
   深夜蓝底 · 冠军金强调 · 霓虹紫交互 · 青绿数据 · 酒红分区
   ============================================================ */

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

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

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

ul, ol { list-style: none; }

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

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

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

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

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

/* ---------- tokens ---------- */
:root {
  --ink: #0A1024;
  --ink-2: #0E2A2E;
  --gold: #E9B949;
  --gold-hi: #F6D98A;
  --violet: #7B4DFF;
  --teal: #29D3B4;
  --wine: #7A1F3D;
  --paper: #F3EFE6;
  --mist: #A9B3C9;
  --line: #1E2740;

  --panel: rgba(243, 239, 230, .035);
  --panel-2: rgba(243, 239, 230, .06);
  --shadow: 0 24px 60px -34px rgba(0, 0, 0, .95);

  --sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --serif: "Songti SC", "SimSun", Georgia, "Times New Roman", serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;

  --wrap: 1200px;
  --gutter: clamp(18px, 4vw, 48px);
  --radius: 4px;
}

/* ---------- base ---------- */
body {
  min-height: 100%;
  background-color: var(--ink);
  background-image:
    radial-gradient(85% 60% at 6% -12%, rgba(14, 42, 46, .95), transparent 62%),
    radial-gradient(70% 55% at 102% 2%, rgba(123, 77, 255, .18), transparent 60%),
    radial-gradient(70% 55% at 50% 118%, rgba(122, 31, 61, .22), transparent 62%);
  background-repeat: no-repeat;
  color: var(--paper);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.75;
  letter-spacing: .01em;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -.02em;
}

h1 { font-size: clamp(34px, 5.2vw, 58px); }
h2 { font-size: clamp(24px, 3.2vw, 34px); }
h3 { font-size: clamp(18px, 2vw, 22px); }

.mono, code, kbd, samp, .stat__value, .chapter__no, .footer-title {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
}

::selection {
  background: rgba(233, 185, 73, .3);
  color: #fff;
}

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

/* ---------- layout helpers ---------- */
.wrap {
  width: 100%;
  max-width: calc(var(--wrap) + var(--gutter) * 2);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

#main-content {
  display: block;
  padding-top: clamp(88px, 12vw, 126px);
}

.section { padding-block: clamp(52px, 7.5vw, 104px); }

.section--teal {
  background: linear-gradient(180deg, rgba(14, 42, 46, .78), rgba(14, 42, 46, .12));
  border-block: 1px solid rgba(41, 211, 180, .12);
}

.section--wine {
  background: linear-gradient(180deg, rgba(122, 31, 61, .3), rgba(122, 31, 61, .04));
  border-block: 1px solid rgba(122, 31, 61, .5);
}

.chapter {
  display: grid;
  grid-template-columns: 62px minmax(0, 1fr);
  gap: 20px;
  align-items: start;
}

.chapter__no {
  font-size: 13px;
  letter-spacing: .16em;
  color: var(--gold);
  padding-top: .5em;
  border-top: 1px solid var(--line);
}

.chapter__title { font-size: clamp(25px, 3.2vw, 34px); }

.chapter__lead {
  margin-top: 12px;
  max-width: 34em;
  color: var(--mist);
}

.prose { max-width: 38em; }
.prose p + p { margin-top: 1em; }

.note {
  font-size: 14.5px;
  color: var(--mist);
  border-left: 2px solid rgba(41, 211, 180, .65);
  padding-left: 14px;
}

/* ---------- skip link ---------- */
.skip-link {
  position: fixed;
  top: 10px;
  left: 50%;
  z-index: 140;
  transform: translate(-50%, -190%);
  padding: 10px 20px;
  border-radius: 999px;
  background: var(--gold);
  color: #0A1024;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .02em;
  box-shadow: 0 14px 34px -18px rgba(233, 185, 73, .9);
  transition: transform .2s ease;
}

.skip-link:focus {
  transform: translate(-50%, 0);
}

/* ---------- header ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  padding: 14px var(--gutter) 0;
  pointer-events: none;
}

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  z-index: 130;
  transform-origin: 0 50%;
  transform: scaleX(var(--progress, 0));
  background: linear-gradient(90deg, var(--teal), var(--gold) 46%, var(--violet));
  pointer-events: none;
}

.header-island {
  position: relative;
  pointer-events: auto;
  display: flex;
  align-items: center;
  gap: clamp(12px, 1.6vw, 22px);
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding: 10px 12px 10px 18px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background:
    linear-gradient(180deg, rgba(14, 42, 46, .93), rgba(10, 16, 36, .9));
  box-shadow: var(--shadow), inset 0 1px 0 rgba(246, 217, 138, .09);
  transition: padding .28s ease, box-shadow .28s ease, background .28s ease;
}

.site-header.is-condensed .header-island {
  padding: 6px 10px 6px 14px;
  background: linear-gradient(180deg, rgba(14, 42, 46, .98), rgba(10, 16, 36, .96));
  box-shadow: 0 22px 52px -32px #000, inset 0 1px 0 rgba(246, 217, 138, .16);
}

.site-header.is-condensed .brand__tag { display: none; }
.site-header.is-condensed .nav__link { padding: 7px 11px; font-size: 13.5px; }

/* brand */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: none;
  padding: 4px 4px 4px 2px;
  border-radius: 999px;
}

.brand__mark {
  flex: none;
  width: 20px;
  height: 20px;
  border-radius: 5px;
  background: linear-gradient(150deg, var(--gold-hi), var(--gold) 46%, #8A6A18);
  box-shadow: 0 0 0 1px rgba(246, 217, 138, .45), 0 0 20px -5px rgba(233, 185, 73, .85);
  transform: rotate(45deg);
  transition: box-shadow .3s ease;
}

.brand:hover .brand__mark {
  box-shadow: 0 0 0 1px rgba(246, 217, 138, .8), 0 0 26px -2px rgba(233, 185, 73, .95);
}

.brand__name {
  font-size: 17px;
  font-weight: 800;
  letter-spacing: -.01em;
  white-space: nowrap;
}

.brand__tag {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--mist);
  padding-left: 10px;
  border-left: 1px solid var(--line);
}

/* nav */
.nav { flex: 1 1 auto; min-width: 0; }

.nav__list {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2px;
}

.nav__item { flex: none; }

.nav__link {
  position: relative;
  display: block;
  padding: 9px 13px;
  border-radius: 999px;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--mist);
  white-space: nowrap;
  transition: color .2s ease, background .2s ease, box-shadow .2s ease;
}

.nav__link:hover,
.nav__link:focus-visible {
  color: var(--paper);
  background: var(--panel-2);
}

.nav__link[aria-current="page"] {
  color: var(--gold);
  background: linear-gradient(180deg, rgba(233, 185, 73, .2), rgba(233, 185, 73, .06));
  box-shadow: inset 0 0 0 1px rgba(233, 185, 73, .48);
}

.nav__link[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 3px;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  transform: translateX(-50%);
  background: var(--gold);
  box-shadow: 0 0 8px var(--gold);
}

/* header actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
  flex: none;
}

/* nav toggle */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 9px;
  padding: 9px 15px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--paper);
  font-size: 13px;
  font-weight: 600;
  transition: border-color .2s ease, background .2s ease;
}

.nav-toggle:hover { border-color: rgba(233, 185, 73, .55); }

.nav-toggle__bars {
  display: inline-flex;
  flex-direction: column;
  gap: 4px;
  width: 18px;
}

.nav-toggle__bars span {
  display: block;
  height: 1.5px;
  border-radius: 2px;
  background: var(--gold);
  transition: transform .2s ease, opacity .2s ease;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(1) { transform: translateY(5.5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(3) { transform: translateY(-5.5px) rotate(-45deg); }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--paper);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .02em;
  text-align: center;
  transition: transform .2s ease, color .2s ease, border-color .2s ease, background .2s ease, box-shadow .2s ease;
}

.btn:hover { transform: translateY(-1px); }

.btn--gold {
  color: var(--gold);
  border-color: rgba(233, 185, 73, .72);
  background: linear-gradient(180deg, rgba(233, 185, 73, .18), rgba(233, 185, 73, .05));
  box-shadow: 0 14px 34px -22px rgba(233, 185, 73, .95);
}

.btn--gold:hover {
  color: var(--gold-hi);
  border-color: var(--gold-hi);
  box-shadow: 0 0 0 1px rgba(246, 217, 138, .2), 0 0 30px -10px rgba(233, 185, 73, .8);
}

.btn--violet {
  color: #CDBBFF;
  border-color: rgba(123, 77, 255, .75);
  background: linear-gradient(180deg, rgba(123, 77, 255, .24), rgba(123, 77, 255, .07));
}

.btn--violet:hover {
  color: #E6DDFF;
  border-color: var(--violet);
  box-shadow: 0 0 30px -10px rgba(123, 77, 255, .95);
}

.btn--ghost { color: var(--mist); }

.btn--ghost:hover {
  color: var(--paper);
  border-color: rgba(169, 179, 201, .55);
}

.btn--sm {
  padding: 9px 16px;
  font-size: 14px;
}

/* ---------- breadcrumb ---------- */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 9px;
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--mist);
}

.breadcrumb__item a { transition: color .2s ease; }
.breadcrumb__item a:hover { color: var(--gold); }
.breadcrumb__sep { color: rgba(169, 179, 201, .5); }

/* ---------- grids & index ---------- */
.grid {
  display: grid;
  gap: clamp(14px, 2vw, 24px);
}

.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }

.index-list { border-top: 1px solid var(--line); }

.index-item {
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr);
  gap: 18px;
  padding: 18px 4px;
  border-bottom: 1px solid var(--line);
}

.index-item__no {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--gold);
  padding-top: 4px;
}

.index-item__title { font-size: 17px; font-weight: 700; }
.index-item__desc { margin-top: 6px; font-size: 15px; color: var(--mist); }

/* ---------- segmented control ---------- */
.segmented {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 4px;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--panel);
}

.segmented__btn {
  padding: 8px 17px;
  border-radius: 999px;
  font-size: 14px;
  color: var(--mist);
  transition: color .18s ease, background .18s ease, box-shadow .18s ease;
}

.segmented__btn:hover { color: var(--paper); }

.segmented__btn[aria-selected="true"] {
  color: var(--paper);
  background: rgba(123, 77, 255, .24);
  box-shadow: inset 0 0 0 1px rgba(123, 77, 255, .65);
}

/* ---------- tags / stats ---------- */
.tag {
  display: inline-block;
  padding: 3px 11px;
  border-radius: 999px;
  border: 1px solid rgba(233, 185, 73, .5);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--gold);
}

.tag--wine {
  border-color: rgba(122, 31, 61, .95);
  background: rgba(122, 31, 61, .38);
  color: #F1C9D6;
}

.stat__value {
  display: block;
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  letter-spacing: -.02em;
  color: var(--gold-hi);
}

.stat__label {
  display: block;
  margin-top: 4px;
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: .1em;
  color: var(--mist);
}

/* ---------- responsive media frame ---------- */
.media {
  position: relative;
  display: block;
  width: 100%;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(14, 42, 46, .92), rgba(10, 16, 36, .92) 56%, rgba(122, 31, 61, .45));
}

.media--wide { aspect-ratio: 16 / 9; }
.media--tall { aspect-ratio: 3 / 4; }
.media--square { aspect-ratio: 1 / 1; }

.media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media__ph {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 16px;
  text-align: center;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--mist);
  background-image:
    linear-gradient(rgba(30, 39, 64, .65) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30, 39, 64, .65) 1px, transparent 1px);
  background-size: 30px 30px;
}

.media__caption {
  margin-top: 10px;
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--mist);
}

/* ---------- footer ---------- */
.site-footer {
  position: relative;
  margin-top: clamp(56px, 9vw, 128px);
  border-top: 1px solid var(--line);
  background:
    radial-gradient(120% 95% at 10% 0%, rgba(14, 42, 46, .9), transparent 64%),
    radial-gradient(95% 85% at 90% 110%, rgba(122, 31, 61, .38), transparent 62%),
    var(--ink);
  color: var(--mist);
  font-size: 15px;
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1.05fr) minmax(0, .8fr);
  gap: clamp(28px, 4vw, 56px);
  width: 100%;
  max-width: calc(var(--wrap) + var(--gutter) * 2);
  margin-inline: auto;
  padding: clamp(40px, 6vw, 76px) var(--gutter) clamp(28px, 4vw, 46px);
}

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

.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 21px;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--paper);
}

.footer-brand .brand__mark {
  width: 16px;
  height: 16px;
  border-radius: 4px;
}

.footer-desc {
  margin-top: 14px;
  max-width: 34em;
  color: var(--mist);
  line-height: 1.8;
}

.footer-title {
  margin-bottom: 16px;
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--gold);
}

.footer-list {
  display: grid;
  gap: 10px;
}

.footer-list--inline {
  margin-top: 20px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px 20px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.footer-list a {
  display: inline-block;
  color: var(--mist);
  font-size: 15px;
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
  transition: color .2s ease, border-color .2s ease;
}

.footer-list a:hover,
.footer-list a:focus-visible {
  color: var(--paper);
  border-bottom-color: rgba(123, 77, 255, .9);
}

.footer-meta {
  display: grid;
  gap: 14px;
}

.footer-meta__row {
  display: grid;
  grid-template-columns: 82px minmax(0, 1fr);
  gap: 14px;
  align-items: baseline;
}

.footer-meta__key {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--mist);
}

.footer-meta__val {
  color: var(--paper);
  font-size: 15px;
  line-height: 1.7;
  word-break: break-word;
}

.footer-base {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 24px;
  width: 100%;
  max-width: calc(var(--wrap) + var(--gutter) * 2);
  margin-inline: auto;
  padding: 18px var(--gutter) 28px;
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: .05em;
  color: var(--mist);
}

.footer-base__icp { color: rgba(169, 179, 201, .95); }
.footer-base__copy { color: rgba(169, 179, 201, .72); }

/* copy button */
.copy-btn {
  margin-left: 10px;
  padding: 3px 11px;
  border-radius: 999px;
  border: 1px solid rgba(41, 211, 180, .5);
  color: var(--teal);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .06em;
  vertical-align: middle;
  transition: background .2s ease, color .2s ease, border-color .2s ease;
}

.copy-btn:hover { background: rgba(41, 211, 180, .14); }

.copy-btn[data-copied="true"] {
  color: var(--gold);
  border-color: var(--gold);
  background: rgba(233, 185, 73, .14);
}

/* ---------- reveal ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity .32s ease, transform .32s ease;
  transition-delay: var(--reveal-delay, 0ms);
}

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

/* ---------- responsive ---------- */
@media (max-width: 1040px) {
  .site-header { padding-top: 10px; }

  .header-island {
    border-radius: 24px;
    padding: 9px 10px 9px 15px;
  }

  .site-header.is-condensed .header-island { padding: 7px 9px 7px 13px; }

  .nav {
    position: absolute;
    top: calc(100% + 10px);
    left: 0;
    right: 0;
    padding: 10px;
    border: 1px solid var(--line);
    border-radius: 22px;
    background: linear-gradient(180deg, rgba(14, 42, 46, .98), rgba(10, 16, 36, .98));
    box-shadow: var(--shadow);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity .22s ease, transform .22s ease, visibility .22s;
  }

  .nav[data-open="true"] {
    opacity: 1;
    visibility: visible;
    transform: none;
  }

  .nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
  }

  .nav__link,
  .site-header.is-condensed .nav__link {
    padding: 13px 15px;
    border-radius: 15px;
    font-size: 16px;
  }

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

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

  .footer-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .footer-col--brand { grid-column: 1 / -1; }
}

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

@media (max-width: 720px) {
  .brand__tag { display: none; }
  .header-cta { font-size: 13px; padding: 8px 13px; }
  .chapter { grid-template-columns: minmax(0, 1fr); gap: 10px; }
  .chapter__no { padding-top: 0; }
}

@media (max-width: 680px) {
  .footer-grid { grid-template-columns: minmax(0, 1fr); }
  .footer-col--brand { grid-column: auto; }
  .footer-meta__row { grid-template-columns: minmax(0, 1fr); gap: 2px; }
}

@media (max-width: 620px) {
  .grid--2, .grid--3 { grid-template-columns: minmax(0, 1fr); }
  .index-item { grid-template-columns: minmax(0, 1fr); gap: 4px; }
  .index-item__no { padding-top: 0; }
  .footer-list--inline { grid-template-columns: minmax(0, 1fr); }
  .footer-base { flex-direction: column; align-items: flex-start; }
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }

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

  .btn:hover { transform: none; }
}