/* ==========================================================
   银河澳门服务 · /assets/site.css
   深空蓝黑 / 银河银紫 / 霓虹青 / 暖金 / 奶油纸
   ========================================================== */

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

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

body,
h1, h2, h3, h4, 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 { font: inherit; color: inherit; }

/* ---------- tokens ---------- */
:root {
  --c-void: #070B18;
  --c-nebula: #111A33;
  --c-violet: #B9A7FF;
  --c-cyan: #45F0E0;
  --c-gold: #F2C46D;
  --c-paper: #F5EBDD;
  --c-ink: #2A1F1A;
  --c-signal: #FF6B4A;
  --c-mist: #8A94B8;
  --c-starlight: #F4F7FF;

  --c-line: rgba(185, 167, 255, 0.22);
  --c-line-soft: rgba(138, 148, 184, 0.24);
  --c-glow-violet: rgba(185, 167, 255, 0.45);
  --c-glow-cyan: rgba(69, 240, 224, 0.38);
  --c-glow-gold: rgba(242, 196, 109, 0.32);

  --font-head: system-ui, "Noto Sans SC", "Source Han Sans SC", sans-serif;
  --font-body: system-ui, "Noto Sans SC", sans-serif;
  --font-mono: "IBM Plex Mono", "SFMono-Regular", ui-monospace, monospace;

  --fs-orbit: clamp(2.5rem, 6vw, 4rem);
  --fs-index: clamp(1.5rem, 3vw, 2.25rem);
  --fs-sub: clamp(1.125rem, 1.9vw, 1.375rem);
  --fs-body: clamp(1rem, 1.15vw, 1.125rem);
  --fs-note: 0.8125rem;

  --lh-body: 1.75;
  --lh-head: 1.18;

  --track-head: 0.06em;
  --track-mono: 0.16em;

  --r-lg: 32px;
  --r-md: 20px;
  --r-sm: 12px;
  --r-pill: 999px;

  --shell-max: 1240px;
  --gutter: clamp(1.125rem, 4vw, 3rem);

  --sp-1: 0.5rem;
  --sp-2: 1rem;
  --sp-3: 1.5rem;
  --sp-4: 2rem;
  --sp-5: 3rem;
  --sp-6: 4.5rem;
  --sp-7: 6.5rem;

  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --dur: 420ms;

  --header-h: 132px;
}

/* ---------- base ---------- */
body {
  background-color: var(--c-void);
  background-image:
    radial-gradient(circle at 12% 8%, rgba(185, 167, 255, 0.16), transparent 46%),
    radial-gradient(circle at 88% 22%, rgba(69, 240, 224, 0.10), transparent 42%),
    radial-gradient(circle at 52% 96%, rgba(242, 196, 109, 0.07), transparent 48%);
  background-attachment: fixed;
  color: var(--c-starlight);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  letter-spacing: 0.01em;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-head);
  font-weight: 800;
  line-height: var(--lh-head);
  letter-spacing: var(--track-head);
}

a { color: var(--c-cyan); text-decoration: none; }
a:hover { color: var(--c-violet); }

p { max-width: 68ch; }

:focus-visible {
  outline: 2px solid var(--c-cyan);
  outline-offset: 3px;
  border-radius: 4px;
}

::selection {
  background: var(--c-violet);
  color: var(--c-void);
}

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

.grid {
  display: grid;
  gap: var(--sp-4);
  grid-template-columns: 1fr;
}

.grid--split {
  grid-template-columns: 1fr;
}

.grid--orbit {
  grid-template-columns: 1fr;
}

@media (min-width: 860px) {
  .grid--split {
    grid-template-columns: minmax(200px, 260px) minmax(0, 1fr);
    gap: var(--sp-5);
    align-items: start;
  }
  .grid--orbit {
    grid-template-columns: repeat(6, 1fr);
  }
}

/* ---------- type helpers ---------- */
.eyebrow,
.section-index {
  font-family: var(--font-mono);
  font-size: var(--fs-note);
  letter-spacing: var(--track-mono);
  text-transform: uppercase;
  color: var(--c-gold);
  display: inline-flex;
  align-items: center;
  gap: var(--sp-1);
}

.eyebrow::before,
.section-index::before {
  content: "";
  width: 22px;
  height: 1px;
  background: linear-gradient(90deg, var(--c-gold), transparent);
}

.section-band {
  position: relative;
  padding-block: var(--sp-6);
  border-top: 1px solid var(--c-line-soft);
}

.section-band::before {
  content: "";
  position: absolute;
  inset-inline: 0;
  top: -1px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--c-violet), var(--c-cyan), transparent);
  opacity: 0.5;
}

.section-band--nebula {
  background: linear-gradient(175deg, rgba(17, 26, 51, 0.94), rgba(7, 11, 24, 0.98));
}

.section-band--paper {
  background: var(--c-paper);
  color: var(--c-ink);
  border-top-color: rgba(42, 31, 26, 0.16);
}

.section-band--paper::before {
  background: linear-gradient(90deg, transparent, var(--c-signal), transparent);
  opacity: 0.7;
}

.section-band--paper .eyebrow,
.section-band--paper .section-index { color: #A63D22; }

.section-band--paper a { color: #8A3A18; }
.section-band--paper a:hover { color: var(--c-ink); }

.content-wrap {
  max-width: 78ch;
}

.prose {
  color: rgba(244, 247, 255, 0.86);
}

.prose p + p { margin-top: var(--sp-3); }

.prose h2,
.prose h3 { margin-top: var(--sp-4); margin-bottom: var(--sp-2); }

.prose--paper {
  color: var(--c-ink);
}

.prose--paper p { color: #3A2C24; }

/* ---------- buttons ---------- */
.orbit-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5em;
  padding: 0.75em 1.6em;
  border-radius: var(--r-pill);
  border: 1px solid transparent;
  background: linear-gradient(120deg, var(--c-violet), var(--c-cyan));
  color: #08101F;
  font-family: var(--font-head);
  font-size: 0.9375rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1.2;
  cursor: pointer;
  text-decoration: none;
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.orbit-btn:hover {
  color: #08101F;
  transform: translateY(-2px);
  box-shadow: 0 10px 30px -10px var(--c-glow-violet);
}

.orbit-btn--ghost {
  background: transparent;
  border-color: var(--c-line);
  color: var(--c-starlight);
}

.orbit-btn--ghost:hover {
  color: var(--c-cyan);
  border-color: var(--c-cyan);
  box-shadow: 0 0 0 1px var(--c-glow-cyan), 0 10px 26px -14px var(--c-glow-cyan);
}

.orbit-btn--gold {
  background: linear-gradient(120deg, var(--c-gold), #E0A84E);
  color: #241703;
}

.orbit-btn--gold:hover {
  color: #241703;
  box-shadow: 0 10px 30px -10px var(--c-glow-gold);
}

/* ---------- breadcrumb ---------- */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4em;
  font-family: var(--font-mono);
  font-size: var(--fs-note);
  letter-spacing: 0.08em;
  color: var(--c-mist);
  padding-block: var(--sp-3) 0;
}

.breadcrumb__item { display: inline-flex; align-items: center; gap: 0.4em; }

.breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  color: rgba(138, 148, 184, 0.6);
}

.breadcrumb__item a { color: var(--c-mist); }
.breadcrumb__item a:hover { color: var(--c-cyan); }
.breadcrumb__item[aria-current="page"] { color: var(--c-violet); }

/* ---------- header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 90;
  background: rgba(7, 11, 24, 0.94);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--c-line);
  transition: box-shadow var(--dur) var(--ease);
}

.site-header::after {
  content: "";
  position: absolute;
  inset-inline: 0;
  bottom: -1px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--c-violet), var(--c-cyan), transparent);
  opacity: 0.6;
  pointer-events: none;
}

.skip-link {
  position: absolute;
  left: var(--gutter);
  top: 0;
  z-index: 120;
  transform: translateY(-140%);
  padding: 0.7em 1.2em;
  background: var(--c-cyan);
  color: #061019;
  font-weight: 700;
  border-radius: 0 0 var(--r-sm) var(--r-sm);
  transition: transform 220ms var(--ease);
}

.skip-link:focus {
  transform: translateY(0);
  outline: 2px solid var(--c-starlight);
  outline-offset: 2px;
}

.site-header__brandbar {
  border-bottom: 1px solid var(--c-line-soft);
  background: linear-gradient(90deg, rgba(17, 26, 51, 0.9), rgba(7, 11, 24, 0.6));
}

.site-header__brandbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-3);
  padding-block: 0.75rem;
  flex-wrap: wrap;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--c-starlight);
  text-decoration: none;
}

.brand-mark:hover { color: var(--c-starlight); }

.brand-mark__glyph {
  position: relative;
  width: 34px;
  height: 34px;
  flex: none;
  border-radius: 50%;
  background:
    radial-gradient(circle at 32% 28%, var(--c-cyan), transparent 42%),
    radial-gradient(circle at 70% 68%, var(--c-violet), transparent 46%),
    var(--c-nebula);
  box-shadow: 0 0 0 1px rgba(185, 167, 255, 0.5), 0 0 18px -4px var(--c-glow-violet);
}

.brand-mark__glyph::after {
  content: "";
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  border: 1px solid rgba(69, 240, 224, 0.32);
  border-left-color: transparent;
  border-bottom-color: transparent;
  transform: rotate(-24deg);
}

.brand-mark__text {
  display: flex;
  flex-direction: column;
  line-height: 1.24;
}

.brand-mark__name {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 1.0625rem;
  letter-spacing: 0.14em;
}

.brand-mark__desc {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  color: var(--c-mist);
}

.utility-nav {
  display: none;
  align-items: center;
  gap: 0.5rem;
}

@media (min-width: 720px) {
  .utility-nav { display: flex; }
}

.utility-nav__link {
  padding: 0.4em 0.95em;
  border-radius: var(--r-pill);
  border: 1px solid var(--c-line-soft);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--c-mist);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.utility-nav__link:hover {
  color: var(--c-gold);
  border-color: var(--c-gold);
}

.site-header__navrow-inner {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  padding-block: 0.6rem;
}

.nav-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.55em 1em;
  border-radius: var(--r-pill);
  border: 1px solid var(--c-line);
  background: rgba(17, 26, 51, 0.8);
  color: var(--c-starlight);
  cursor: pointer;
  transition: border-color var(--dur) var(--ease);
}

.nav-toggle:hover { border-color: var(--c-cyan); }
.nav-toggle:focus-visible { outline: 2px solid var(--c-cyan); outline-offset: 3px; }

.nav-toggle__bar {
  display: block;
  width: 16px;
  height: 2px;
  border-radius: 2px;
  background: var(--c-cyan);
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}

.nav-toggle__label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: var(--c-mist);
}

.site-header[data-open="true"] .nav-toggle__bar:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.site-header[data-open="true"] .nav-toggle__bar:nth-child(2) { opacity: 0; }
.site-header[data-open="true"] .nav-toggle__bar:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.main-nav {
  display: none;
  width: 100%;
}

.site-header[data-open="true"] .main-nav {
  display: block;
  order: 3;
  flex-basis: 100%;
}

.main-nav__list {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding-block: 0.75rem;
  border-top: 1px solid var(--c-line-soft);
}

.main-nav__link {
  display: block;
  padding: 0.7em 1.1em;
  border-radius: var(--r-pill);
  color: rgba(244, 247, 255, 0.82);
  font-size: 0.9375rem;
  letter-spacing: 0.06em;
  border: 1px solid transparent;
  transition: color var(--dur) var(--ease), background-color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.main-nav__link:hover {
  color: var(--c-cyan);
  background: rgba(69, 240, 224, 0.08);
  border-color: rgba(69, 240, 224, 0.32);
}

.main-nav__link[aria-current="page"] {
  color: var(--c-gold);
  background: rgba(242, 196, 109, 0.10);
  border-color: rgba(242, 196, 109, 0.42);
  font-weight: 700;
}

.site-header__cta { display: none; }

@media (min-width: 900px) {
  .nav-toggle { display: none; }
  .site-header__cta { display: inline-flex; margin-left: auto; }
  .main-nav { display: block; width: auto; }
  .site-header[data-open="true"] .main-nav { display: block; flex-basis: auto; }
  .main-nav__list {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 0.25rem;
    padding-block: 0;
    border-top: 0;
  }
  .main-nav__link { font-size: 0.875rem; }
}

.site-header.is-condensed .site-header__brandbar-inner { padding-block: 0.4rem; }
.site-header.is-condensed .brand-mark__desc { display: none; }
.site-header.is-condensed .brand-mark__glyph { width: 28px; height: 28px; }
.site-header.is-condensed .site-header__navrow-inner { padding-block: 0.4rem; }

/* ---------- content primitives ---------- */
.card {
  position: relative;
  padding: var(--sp-3);
  border-radius: var(--r-md);
  background: linear-gradient(160deg, rgba(17, 26, 51, 0.92), rgba(7, 11, 24, 0.86));
  border: 1px solid var(--c-line-soft);
}

.card--float {
  border-radius: var(--r-lg);
  border-color: rgba(185, 167, 255, 0.34);
  box-shadow: 0 24px 60px -32px rgba(7, 11, 24, 0.95), 0 0 0 1px rgba(69, 240, 224, 0.06) inset;
}

.card--badge {
  background: linear-gradient(150deg, rgba(242, 196, 109, 0.14), rgba(17, 26, 51, 0.9));
  border-color: rgba(242, 196, 109, 0.4);
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 0.28em 0.8em;
  border-radius: var(--r-pill);
  border: 1px solid var(--c-line-soft);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  color: var(--c-mist);
}

.tag--gold { color: var(--c-gold); border-color: rgba(242, 196, 109, 0.45); }
.tag--cyan { color: var(--c-cyan); border-color: rgba(69, 240, 224, 0.42); }

/* ---------- side rail ---------- */
.side-rail {
  position: sticky;
  top: calc(var(--header-h) + 1rem);
}

.side-rail__list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

@media (min-width: 860px) {
  .side-rail__list {
    flex-direction: column;
    flex-wrap: nowrap;
    border-left: 1px solid var(--c-line);
    padding-left: var(--sp-2);
  }
}

.side-rail__link {
  display: block;
  padding: 0.5em 0.9em;
  border-radius: var(--r-pill);
  font-size: 0.875rem;
  color: var(--c-mist);
  border: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.side-rail__link:hover { color: var(--c-cyan); border-color: rgba(69, 240, 224, 0.3); }

.side-rail__link[aria-current="true"] {
  color: var(--c-violet);
  border-color: rgba(185, 167, 255, 0.45);
  background: rgba(185, 167, 255, 0.08);
}

/* ---------- timeline ---------- */
.timeline {
  position: relative;
  padding-left: 1.6rem;
  border-left: 1px solid var(--c-line);
}

.timeline__item {
  position: relative;
  padding-block: 0.35rem var(--sp-3);
}

.timeline__dot {
  position: absolute;
  left: calc(-1.6rem - 5px);
  top: 0.7rem;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--c-violet);
  box-shadow: 0 0 0 4px rgba(185, 167, 255, 0.14);
}

.timeline__dot--signal {
  background: var(--c-signal);
  box-shadow: 0 0 0 4px rgba(255, 107, 74, 0.18);
}

/* ---------- media frames ---------- */
.media-frame {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border-radius: var(--r-md);
  border: 1px solid var(--c-line);
  background:
    radial-gradient(circle at 24% 26%, rgba(185, 167, 255, 0.28), transparent 52%),
    radial-gradient(circle at 78% 74%, rgba(69, 240, 224, 0.18), transparent 50%),
    linear-gradient(160deg, #101A31, #070B18);
}

.media-frame--wide { aspect-ratio: 16 / 9; }
.media-frame--square { aspect-ratio: 1 / 1; }

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

.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  box-shadow: inset 0 0 0 1px rgba(244, 247, 255, 0.06);
  pointer-events: none;
}

/* ---------- footer ---------- */
.site-footer {
  margin-top: var(--sp-7);
  position: relative;
  background: linear-gradient(180deg, rgba(17, 26, 51, 0.96), #050812);
  border-top: 1px solid var(--c-line);
  color: var(--c-starlight);
  padding-block: var(--sp-5) var(--sp-3);
}

.site-footer::before {
  content: "";
  position: absolute;
  inset-inline: 0;
  top: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--c-violet), var(--c-cyan), transparent);
  opacity: 0.7;
}

.footer__grid {
  display: grid;
  gap: var(--sp-4);
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .footer__grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1000px) {
  .footer__grid { grid-template-columns: 1.6fr 1fr 1fr 1.3fr; gap: var(--sp-5); }
}

.footer__group { min-width: 0; }

.footer__group--brand { max-width: 34ch; }

.brand-mark--footer { margin-bottom: var(--sp-2); }

.footer__note {
  color: var(--c-mist);
  font-size: 0.875rem;
  line-height: 1.7;
  margin-bottom: var(--sp-3);
}

.footer__cta { font-size: 0.8125rem; padding: 0.6em 1.3em; }

.footer__title {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--c-gold);
  margin-bottom: var(--sp-2);
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--c-line-soft);
}

.footer__list {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  font-size: 0.875rem;
}

.footer__list a {
  color: rgba(244, 247, 255, 0.78);
  text-decoration: none;
  transition: color var(--dur) var(--ease);
}

.footer__list a:hover { color: var(--c-cyan); }

.footer__list--contact { margin-top: var(--sp-2); }

.footer__list--contact a { color: var(--c-violet); word-break: break-word; }

.footer__address {
  font-style: normal;
  color: var(--c-mist);
  font-size: 0.8125rem;
  line-height: 1.6;
}

.footer__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 1.5rem;
  margin-top: var(--sp-4);
  padding-top: var(--sp-2);
  border-top: 1px solid var(--c-line-soft);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--c-mist);
}

.footer__copy,
.footer__icp,
.footer__hint { margin: 0; max-width: none; }

.footer__hint { margin-left: auto; }

/* ---------- back to top ---------- */
.back-to-top {
  position: fixed;
  right: clamp(1rem, 3vw, 2rem);
  bottom: clamp(1rem, 3vw, 2rem);
  z-index: 80;
  width: 46px;
  height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1px solid var(--c-line);
  background: rgba(17, 26, 51, 0.9);
  color: var(--c-cyan);
  font-size: 1.1rem;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease), visibility var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.back-to-top:hover { border-color: var(--c-cyan); }

.back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* ---------- reveal ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 600ms var(--ease), transform 600ms var(--ease);
  transition-delay: var(--reveal-delay, 0ms);
}

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

/* ---------- utilities ---------- */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* ---------- reduced motion ---------- */
@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;
  }
  [data-reveal] {
    opacity: 1 !important;
    transform: none !important;
  }
  .back-to-top {
    opacity: 1;
    visibility: visible;
    transform: none;
  }
}