/* =========================================================
   皇冠国际娱乐 · 共享样式表 /assets/site.css
   夜幕皇冠剧场：曜黑舞台、鎏金刻度、非对称剧场式构图
   ========================================================= */

/* ---------- 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, dd { margin: 0; padding: 0; }
ul, ol { list-style: none; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
img, svg, video { display: block; max-width: 100%; }
table { border-collapse: collapse; width: 100%; }

/* ---------- variables ---------- */
:root {
  --ink: #0B0B0D;
  --ink-2: #14161A;
  --ink-3: #1C1F25;
  --gold: #C8A24A;
  --gold-light: #E8CE8B;
  --gold-dark: #8A6B2B;
  --ruby: #A6253B;
  --silver: #C9CED6;
  --mist: #F4F1EA;
  --cyan: #6FB3C4;
  --steel: #6E7480;

  --line-gold: rgba(200, 162, 74, .30);
  --line-gold-strong: rgba(200, 162, 74, .55);
  --line-soft: rgba(201, 206, 214, .14);
  --line-cyan: rgba(111, 179, 196, .45);

  --shell: 1240px;
  --gutter: clamp(18px, 4vw, 44px);
  --radius: 2px;

  --font-display: "Songti SC", "STSong", "Noto Serif SC", "Source Han Serif SC", "SimSun", Georgia, serif;
  --font-body: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, "Courier New", monospace;

  --ease: cubic-bezier(.22, .61, .36, 1);
  --shadow-soft: 0 20px 46px -30px rgba(0, 0, 0, .95);
}

/* ---------- base ---------- */
body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  color: var(--mist);
  background:
    radial-gradient(1100px 620px at 80% -12%, rgba(200, 162, 74, .10), transparent 62%),
    radial-gradient(900px 520px at 4% 14%, rgba(111, 179, 196, .06), transparent 66%),
    var(--ink);
  background-attachment: fixed;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -.02em;
  line-height: 1.2;
}

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

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

.skip-link {
  position: absolute;
  left: var(--gutter);
  top: -72px;
  z-index: 200;
  padding: 10px 20px;
  background: linear-gradient(135deg, var(--gold-light), var(--gold));
  color: #17140C;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .04em;
  border-radius: var(--radius);
  transition: top .25s var(--ease);
}
.skip-link:focus { top: 10px; }

/* ---------- buttons ---------- */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border: 1px solid var(--gold);
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .06em;
  color: var(--gold-light);
  background: linear-gradient(180deg, rgba(200, 162, 74, .16), rgba(200, 162, 74, .04));
  overflow: hidden;
  transition: color .3s var(--ease), background .3s var(--ease), border-color .3s var(--ease), transform .3s var(--ease);
}
.btn::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--gold-light), var(--gold));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .35s var(--ease);
}
.btn:hover { transform: translateY(-2px); border-color: var(--gold-light); color: var(--mist); }
.btn:hover::after { transform: scaleX(1); }
.btn--gold {
  background: linear-gradient(135deg, var(--gold-light), var(--gold));
  border-color: transparent;
  color: #17140C;
}
.btn--gold:hover { color: #17140C; }
.btn--ghost {
  background: transparent;
  border-color: var(--line-gold);
  color: var(--mist);
}
.btn--sm { padding: 8px 14px; font-size: 13px; letter-spacing: .04em; }
.btn-row { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }

/* =========================================================
   HEADER
   ========================================================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 80;
  background: rgba(11, 11, 13, .94);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line-gold);
}

.header-top { border-bottom: 1px solid var(--line-soft); }
.header-top__inner {
  display: flex;
  align-items: center;
  gap: clamp(14px, 3vw, 40px);
  min-height: 78px;
  transition: min-height .35s var(--ease);
}
.site-header[data-scrolled] .header-top__inner { min-height: 62px; }

.brand { display: inline-flex; align-items: center; gap: 12px; }
.brand__mark {
  width: 36px;
  height: 27px;
  flex: none;
  background: linear-gradient(180deg, var(--gold-light), var(--gold) 52%, var(--gold-dark));
  clip-path: polygon(0 100%, 0 30%, 24% 62%, 50% 0, 76% 62%, 100% 30%, 100% 100%);
  filter: drop-shadow(0 0 10px rgba(200, 162, 74, .35));
}
.brand__text { display: flex; flex-direction: column; line-height: 1.3; }
.brand__name {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 800;
  letter-spacing: .06em;
  color: var(--mist);
}
.brand__tag {
  font-size: 10px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: rgba(200, 162, 74, .78);
}

.header-top__side {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: clamp(12px, 2vw, 22px);
}

.lang-note {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--steel);
}
.lang-note__current { color: var(--gold-light); }
.lang-note__sep { color: var(--gold-dark); }
.lang-note__alt { color: var(--steel); }

.nav-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 8px 13px;
  border: 1px solid var(--line-gold);
  border-radius: var(--radius);
  order: 3;
}
.nav-toggle__bar {
  position: relative;
  display: block;
  width: 16px;
  height: 1px;
  background: var(--gold-light);
}
.nav-toggle__bar::before,
.nav-toggle__bar::after {
  content: "";
  position: absolute;
  left: 0;
  width: 16px;
  height: 1px;
  background: var(--gold-light);
  transition: transform .3s var(--ease), opacity .2s var(--ease);
}
.nav-toggle__bar::before { top: -5px; }
.nav-toggle__bar::after { top: 5px; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar { background: transparent; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar::before { transform: translateY(5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar::after { transform: translateY(-5px) rotate(-45deg); }
.nav-toggle__label {
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--silver);
}

.primary-nav {
  background: linear-gradient(180deg, rgba(20, 22, 26, .92), rgba(11, 11, 13, .92));
}
.primary-nav__inner {
  display: flex;
  align-items: center;
  gap: 24px;
  min-height: 54px;
}
.primary-nav__list {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: clamp(6px, 2.2vw, 32px);
}
.primary-nav__link {
  position: relative;
  display: inline-block;
  padding: 9px 2px;
  font-size: 14.5px;
  letter-spacing: .1em;
  color: var(--silver);
  transition: color .3s var(--ease);
}
.primary-nav__link::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--gold), var(--gold-light));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .35s var(--ease);
}
.primary-nav__link:hover { color: var(--mist); }
.primary-nav__link:hover::after { transform: scaleX(1); }
.primary-nav__link[aria-current="page"] { color: var(--gold-light); }
.primary-nav__link[aria-current="page"]::after { transform: scaleX(1); height: 2px; }

.primary-nav__note {
  margin-left: auto;
  font-size: 11px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--gold-dark);
  white-space: nowrap;
}

.scroll-rail {
  position: relative;
  height: 2px;
  background: rgba(201, 206, 214, .07);
  overflow: hidden;
}
.scroll-rail__bar {
  display: block;
  width: 100%;
  height: 100%;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--gold-dark), var(--gold) 45%, var(--gold-light));
}

/* mobile nav */
@media (max-width: 900px) {
  .nav-toggle { display: inline-flex; }
  .header-top__side { margin-left: auto; }
  .primary-nav {
    max-height: 0;
    opacity: 0;
    visibility: hidden;
    overflow: hidden;
    transition: max-height .45s var(--ease), opacity .3s var(--ease), visibility .3s var(--ease);
  }
  .primary-nav[data-open] {
    max-height: 78vh;
    opacity: 1;
    visibility: visible;
    overflow-y: auto;
  }
  .primary-nav__inner {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding-block: 8px 22px;
  }
  .primary-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }
  .primary-nav__link {
    display: block;
    width: 100%;
    padding: 15px 4px;
    font-size: 16px;
    border-bottom: 1px solid var(--line-soft);
  }
  .primary-nav__link::after { display: none; }
  .primary-nav__link[aria-current="page"] {
    box-shadow: inset 3px 0 0 var(--gold);
    padding-left: 16px;
  }
  .primary-nav__note { margin: 18px 0 0; letter-spacing: .18em; }
}

@media (max-width: 720px) {
  .lang-note { display: none; }
  .brand__tag { max-width: 24ch; }
}

/* =========================================================
   FOOTER
   ========================================================= */
.site-footer {
  position: relative;
  margin-top: clamp(48px, 8vw, 110px);
  background: linear-gradient(180deg, var(--ink), #08080A);
  border-top: 1px solid var(--line-gold);
}
.site-footer::before {
  content: "";
  position: absolute;
  inset: 0 0 auto auto;
  width: min(46%, 520px);
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--gold));
  opacity: .8;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.3fr;
  gap: clamp(26px, 4vw, 56px);
  padding-block: clamp(46px, 7vw, 84px);
}
.footer-col { min-width: 0; }
.footer-col__title {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--gold);
  padding-bottom: 12px;
  margin-bottom: 18px;
  border-bottom: 1px solid var(--line-soft);
}
.footer-links { display: grid; gap: 11px; }
.footer-links a {
  display: inline-block;
  font-size: 14.5px;
  color: var(--silver);
  transition: color .25s var(--ease), transform .25s var(--ease);
}
.footer-links a:hover { color: var(--gold-light); transform: translateX(4px); }

.brand--footer { margin-bottom: 16px; }
.footer-intro {
  max-width: 36ch;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--silver);
}
.footer-seal {
  margin-top: 20px;
  font-size: 11px;
  letter-spacing: .26em;
  text-transform: uppercase;
  color: var(--gold-dark);
}

.footer-contact { display: grid; gap: 16px; }
.footer-contact__label {
  display: block;
  margin-bottom: 3px;
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--steel);
}
.footer-contact__value {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 600;
  color: var(--mist);
  word-break: break-word;
}
.footer-contact__value--num {
  border-bottom: 2px solid var(--gold);
  padding-bottom: 3px;
  display: inline-block;
}
.footer-contact__value--text {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--silver);
}
.footer-contact__note {
  margin-top: 18px;
  max-width: 40ch;
  font-size: 12.5px;
  line-height: 1.85;
  color: var(--steel);
  border-left: 2px solid var(--line-gold);
  padding-left: 12px;
}

.footer-base {
  border-top: 1px solid var(--line-soft);
  background: rgba(0, 0, 0, .38);
}
.footer-base__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 24px;
  padding-block: 18px;
  font-size: 12.5px;
  color: var(--steel);
}
.footer-base__copy { letter-spacing: .04em; }
.footer-base__meta {
  font-family: var(--font-mono);
  letter-spacing: .08em;
  color: var(--gold-dark);
}

@media (max-width: 1020px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 620px) {
  .footer-grid { grid-template-columns: 1fr; gap: 34px; }
  .footer-base__inner { justify-content: flex-start; }
}

/* =========================================================
   通用页面组件
   ========================================================= */
.section {
  position: relative;
  padding-block: clamp(54px, 8vw, 108px);
}
.section--tight { padding-block: clamp(32px, 4.5vw, 60px); }
.section--band {
  background: linear-gradient(90deg, rgba(20, 22, 26, .92), rgba(11, 11, 13, .92));
  border-block: 1px solid var(--line-soft);
}
.section__head {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: clamp(26px, 4vw, 52px);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 11.5px;
  letter-spacing: .28em;
  text-transform: uppercase;
  color: var(--gold);
}
.eyebrow::before {
  content: "";
  width: 36px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold));
}

.section-title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(28px, 4.4vw, 52px);
  letter-spacing: -.02em;
  line-height: 1.14;
  color: var(--mist);
}
.lede {
  max-width: 62ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.85;
  color: var(--silver);
}

.prose {
  max-width: 720px;
  color: var(--mist);
  font-size: 16px;
  line-height: 1.8;
}
.prose p + p { margin-top: 1.1em; }
.prose h3 { margin-top: 1.8em; margin-bottom: .6em; font-size: 20px; }
.prose ul { margin-top: 1em; display: grid; gap: 9px; }
.prose li {
  position: relative;
  padding-left: 20px;
  color: var(--silver);
}
.prose li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .78em;
  width: 9px;
  height: 1px;
  background: var(--gold);
}
.prose--legal { line-height: 1.9; font-size: 15.5px; color: var(--silver); }

.note {
  font-size: 13px;
  line-height: 1.85;
  color: var(--steel);
  border-left: 2px solid var(--line-gold);
  padding-left: 14px;
}

.crown-line {
  height: 1px;
  border: 0;
  background: linear-gradient(90deg, transparent, var(--gold) 16%, var(--gold-light) 50%, var(--gold) 84%, transparent);
  opacity: .72;
}

/* grid: 非对称剧场式 11 列 */
.layout-11 {
  display: grid;
  grid-template-columns: repeat(11, minmax(0, 1fr));
  gap: clamp(20px, 2.6vw, 34px);
}
.col-12 { grid-column: span 12; }
.col-7 { grid-column: span 7; }
.col-6 { grid-column: span 6; }
.col-5 { grid-column: span 5; }
.col-4 { grid-column: span 4; }

.grid-auto {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: clamp(16px, 2.2vw, 28px);
}
.stack { display: grid; gap: clamp(14px, 2vw, 22px); }

@media (max-width: 900px) {
  .layout-11 { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .col-7, .col-6 { grid-column: span 6; }
  .col-5 { grid-column: span 6; }
  .col-4 { grid-column: span 3; }
}
@media (max-width: 560px) {
  .layout-11 { grid-template-columns: 1fr; }
  .col-7, .col-6, .col-5, .col-4 { grid-column: span 1; }
}

/* cards */
.card {
  position: relative;
  display: block;
  padding: clamp(20px, 2.4vw, 30px);
  background: linear-gradient(180deg, var(--ink-2), #101216);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
  transition: border-color .35s var(--ease), transform .35s var(--ease);
}
.card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, transparent 34%, rgba(232, 206, 139, .13) 50%, transparent 66%);
  transform: translateX(-120%);
  transition: transform .6s var(--ease);
  pointer-events: none;
}
.card:hover { border-color: var(--line-gold-strong); transform: translateY(-4px); }
.card:hover::before { transform: translateX(120%); }
.card__title {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--mist);
}
.card__text {
  margin-top: 10px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--silver);
}
.card__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 18px;
}

/* tags */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  border: 1px solid var(--line-gold);
  border-radius: var(--radius);
  font-size: 11.5px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--gold-light);
}
.tag--ruby {
  border-color: rgba(166, 37, 59, .65);
  background: rgba(166, 37, 59, .14);
  color: #EBA9B6;
}
.tag--cyan {
  border-color: var(--line-cyan);
  background: rgba(111, 179, 196, .08);
  color: var(--cyan);
}
.tag--muted {
  border-color: var(--line-soft);
  color: var(--steel);
}

/* figures / numbers */
.figure { display: flex; flex-direction: column; gap: 6px; }
.figure__num {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: clamp(26px, 3.2vw, 42px);
  font-weight: 600;
  line-height: 1.1;
  color: var(--mist);
  border-bottom: 2px solid var(--gold);
  padding-bottom: 6px;
}
.figure__label {
  font-size: 11.5px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--steel);
}

/* breadcrumbs */
.breadcrumbs { margin-bottom: 10px; }
.breadcrumbs__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 11.5px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--steel);
}
.breadcrumbs__link { color: var(--silver); transition: color .25s var(--ease); }
.breadcrumbs__link:hover { color: var(--gold-light); }
.breadcrumbs__sep { color: var(--gold-dark); }
.breadcrumbs__item[aria-current="page"] { color: var(--gold-light); }

/* image containers（供页面阶段放置图片占位） */
.media {
  position: relative;
  display: block;
  overflow: hidden;
  border: 1px solid var(--line-gold);
  border-radius: var(--radius);
  background: linear-gradient(140deg, #191B20, #0C0D10 70%);
  aspect-ratio: 16 / 10;
}
.media__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(.92) contrast(1.06);
}
.media__veil {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11, 11, 13, 0) 38%, rgba(11, 11, 13, .86));
  pointer-events: none;
}
.media__tag {
  position: absolute;
  left: 14px;
  top: 14px;
  z-index: 2;
}
.media__caption {
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 14px;
  z-index: 2;
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--silver);
}
.media--crown { aspect-ratio: 4 / 3; }
.media--wide { aspect-ratio: 21 / 9; }
.media--tall { aspect-ratio: 3 / 4; }
.media--square { aspect-ratio: 1 / 1; }
.media--brushed::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(112deg, rgba(201, 206, 214, .05) 0 1px, transparent 1px 5px);
  opacity: .6;
  pointer-events: none;
  z-index: 1;
}
.media--stage::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(70% 58% at 74% 8%, rgba(232, 206, 139, .18), transparent 68%),
              radial-gradient(50% 50% at 8% 92%, rgba(111, 179, 196, .12), transparent 72%);
  pointer-events: none;
  z-index: 1;
}

/* reveal */
[data-reveal] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity .7s var(--ease), transform .7s var(--ease);
}
[data-reveal].is-revealed { opacity: 1; transform: none; }

/* ---------- motion preferences ---------- */
@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; }
  .card:hover { transform: none; }
  .btn:hover { transform: none; }
  .footer-links a:hover { transform: none; }
  .primary-nav { transition: none; }
}