/* ==========================================================================
   新豪门娱乐会馆 — /assets/site.css
   共享外壳：reset / 变量 / 中文排版 / 刊头 / 页脚 / 通用组件
   ========================================================================== */

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

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

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

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

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

button { font: inherit; color: inherit; background: none; border: 0; }

a { color: inherit; }

/* ---------- 变量 ---------- */
:root {
  --ink: #0B0B0D;
  --ink-2: #14161B;
  --ink-3: #1A1D23;
  --grid: #23262E;
  --grid-soft: #1B1E25;
  --gold: #C8A05A;
  --gold-lite: #EBD3A0;
  --cyan: #4FD1E0;
  --coral: #FF7A59;
  --paper: #F4F5F7;
  --muted: #9BA1AC;

  --fx-gold: linear-gradient(160deg, #C8A05A 0%, #5A4526 42%, #0B0B0D 100%);

  --font-display: "Noto Serif SC", "Source Han Serif SC", "Songti SC", serif;
  --font-body: "Noto Sans SC", "PingFang SC", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", "SFMono-Regular", ui-monospace, monospace;

  --wrap: 1280px;
  --gutter: clamp(16px, 4vw, 48px);
  --gap: 24px;
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
  --head-h: 132px;
}

/* ---------- 中文排版基线 ---------- */
html {
  scroll-behavior: smooth;
  scroll-padding-top: 150px;
}

body {
  min-height: 100%;
  background-color: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.75;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--paper);
}

h1 { font-size: clamp(30px, 4vw, 58px); }
h2 { font-size: clamp(24px, 2.8vw, 44px); }
h3 { font-size: clamp(20px, 2vw, 28px); }
h4 { font-size: 20px; }

p { letter-spacing: 0.01em; }

::selection {
  background: rgba(200, 160, 90, 0.35);
  color: var(--paper);
}

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

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

.grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: var(--gap);
}

.grid > * { min-width: 0; }

.span-2 { grid-column: span 2; }
.span-3 { grid-column: span 3; }
.span-4 { grid-column: span 4; }
.span-5 { grid-column: span 5; }
.span-6 { grid-column: span 6; }
.span-7 { grid-column: span 7; }
.span-8 { grid-column: span 8; }
.span-9 { grid-column: span 9; }
.span-12 { grid-column: span 12; }

/* ---------- 跳转链接 ---------- */
.skip-link {
  position: absolute;
  top: -80px;
  left: 16px;
  z-index: 999;
  padding: 12px 18px;
  background: var(--gold);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-decoration: none;
  transition: top 0.2s var(--ease);
}

.skip-link:focus {
  top: 12px;
}

/* ==========================================================================
   刊头
   ========================================================================== */
.site-head {
  position: sticky;
  top: 0;
  z-index: 60;
  background-color: rgba(11, 11, 13, 0.96);
  border-bottom: 1px solid var(--grid);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  transition: box-shadow 0.24s var(--ease);
}

.site-head.is-condensed {
  box-shadow: 0 12px 32px -24px rgba(0, 0, 0, 0.9);
}

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

.masthead {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: var(--gap);
  padding-block: 22px 16px;
  transition: padding 0.24s var(--ease);
}

.masthead__readout {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1;
  letter-spacing: 0.12em;
  color: var(--muted);
  white-space: nowrap;
  transition: font-size 0.24s var(--ease), opacity 0.24s var(--ease);
}

.readout__item b {
  font-weight: 500;
  color: var(--cyan);
}

.readout__sep {
  width: 1px;
  height: 10px;
  background: var(--grid);
  flex: none;
}

.masthead__brand {
  display: grid;
  justify-items: center;
  gap: 8px;
  text-decoration: none;
}

.masthead__brand-line {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(22px, 2.4vw, 32px);
  line-height: 1.1;
  letter-spacing: 0.14em;
  color: var(--paper);
  background-image: linear-gradient(100deg, #F4F5F7 0%, #EBD3A0 48%, #C8A05A 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  transition: font-size 0.24s var(--ease), letter-spacing 0.24s var(--ease);
}

.masthead__tagline {
  font-family: var(--font-mono);
  font-size: 10px;
  line-height: 1;
  letter-spacing: 0.28em;
  color: var(--muted);
}

.masthead__meta {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
  min-width: 0;
}

.head-section {
  display: none;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1;
  letter-spacing: 0.14em;
  color: var(--cyan);
  white-space: nowrap;
}

.btn {
  --btn-fg: var(--paper);
  --btn-bd: var(--grid);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 22px;
  border: 1px solid var(--btn-bd);
  border-radius: 0;
  background-color: transparent;
  color: var(--btn-fg);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  line-height: 1;
  letter-spacing: 0.14em;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  transition: color 0.2s var(--ease), background-color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.btn:hover {
  color: var(--ink);
  background-color: var(--gold);
  border-color: var(--gold);
}

.btn--gold {
  --btn-fg: var(--gold-lite);
  --btn-bd: rgba(200, 160, 90, 0.55);
}

.btn--gold:hover {
  color: var(--ink);
  background-color: var(--gold);
  border-color: var(--gold);
}

.btn--ghost {
  --btn-fg: var(--muted);
  --btn-bd: var(--grid);
}

.btn--ghost:hover {
  color: var(--paper);
  background-color: var(--ink-2);
  border-color: var(--gold);
}

.btn--sm {
  padding: 9px 14px;
  font-size: 11px;
  letter-spacing: 0.1em;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 11px;
  border: 1px solid var(--grid);
  border-radius: 0;
  background-color: var(--ink-2);
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 10px;
  line-height: 1;
  letter-spacing: 0.16em;
  white-space: nowrap;
}

.badge::before {
  content: "";
  width: 5px;
  height: 5px;
  flex: none;
  background-color: currentColor;
}

.badge--gold {
  border-color: rgba(200, 160, 90, 0.42);
  background-color: rgba(200, 160, 90, 0.08);
  color: var(--gold-lite);
}

.badge--cyan {
  border-color: rgba(79, 209, 224, 0.42);
  background-color: rgba(79, 209, 224, 0.08);
  color: var(--cyan);
}

.badge--coral {
  border-color: rgba(255, 122, 89, 0.42);
  background-color: rgba(255, 122, 89, 0.08);
  color: var(--coral);
}

/* ---------- 移动开关 ---------- */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 9px;
  padding: 9px 12px;
  border: 1px solid var(--grid);
  border-radius: 0;
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 10px;
  line-height: 1;
  letter-spacing: 0.18em;
  cursor: pointer;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.nav-toggle:hover { border-color: var(--gold); color: var(--gold-lite); }

.nav-toggle__bars {
  display: grid;
  gap: 4px;
  width: 16px;
}

.nav-toggle__bars span {
  display: block;
  height: 1px;
  width: 100%;
  background-color: var(--gold);
  transition: transform 0.2s var(--ease), opacity 0.2s var(--ease);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(1) {
  transform: translateY(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(-5px) rotate(-45deg);
}

/* ---------- 主导航 ---------- */
.primary-nav {
  position: relative;
  border-top: 1px solid var(--grid);
}

.primary-nav__list {
  display: flex;
  align-items: stretch;
  justify-content: center;
}

.primary-nav__list li + li {
  border-left: 1px solid var(--grid);
}

.primary-nav__list a {
  position: relative;
  display: block;
  padding: 14px 26px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: 0.2em;
  text-decoration: none;
  transition: color 0.18s var(--ease), padding 0.24s var(--ease);
}

.primary-nav__list a::after {
  content: "";
  position: absolute;
  left: 26px;
  right: 26px;
  bottom: 8px;
  height: 1px;
  background-color: var(--gold);
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform 0.22s var(--ease);
}

.primary-nav__list a:hover,
.primary-nav__list a:focus-visible {
  color: var(--paper);
}

.primary-nav__list a:hover::after,
.primary-nav__list a:focus-visible::after {
  transform: scaleX(1);
}

.primary-nav__list a[aria-current="page"] {
  color: var(--gold);
}

.primary-nav__list a[aria-current="page"]::after {
  transform: scaleX(1);
}

.site-head__progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 1px;
  background-image: linear-gradient(90deg, var(--gold) 0%, var(--cyan) 100%);
  transform: scaleX(0);
  transform-origin: 0 50%;
  pointer-events: none;
}

/* ---------- 吸顶收缩态 ---------- */
.site-head.is-condensed .masthead {
  padding-block: 10px 8px;
}

.site-head.is-condensed .masthead__brand-line {
  font-size: 19px;
  letter-spacing: 0.1em;
}

.site-head.is-condensed .masthead__tagline {
  display: none;
}

.site-head.is-condensed .masthead__readout {
  font-size: 10px;
  opacity: 0.85;
}

.site-head.is-condensed .head-section {
  display: inline-block;
}

.site-head.is-condensed .masthead__meta .badge {
  display: none;
}

.site-head.is-condensed .primary-nav__list a {
  padding-block: 9px;
}

/* ==========================================================================
   通用组件（页面阶段复用）
   ========================================================================== */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1;
  letter-spacing: 0.24em;
  color: var(--gold);
}

.chapter {
  padding-block: clamp(64px, 9vw, 140px);
  border-top: 1px solid var(--grid);
}

.chapter:first-of-type { border-top: 0; }

.chapter__index {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(44px, 6vw, 72px);
  font-weight: 500;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--gold);
}

.chapter__title {
  margin-top: 12px;
  font-family: var(--font-display);
  font-size: clamp(24px, 2.8vw, 44px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.chapter__lede {
  max-width: 46ch;
  margin-top: 16px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.85;
}

.panel {
  background-color: var(--ink-2);
  border: 1px solid var(--grid);
}

.panel--glow {
  background-image: linear-gradient(160deg, rgba(200, 160, 90, 0.16) 0%, rgba(90, 69, 38, 0.12) 42%, rgba(11, 11, 13, 0) 100%),
    radial-gradient(120% 90% at 0% 0%, rgba(79, 209, 224, 0.1) 0%, rgba(11, 11, 13, 0) 60%);
}

.rule-gold {
  height: 1px;
  background-image: linear-gradient(90deg, var(--gold) 0%, rgba(200, 160, 90, 0) 100%);
  border: 0;
}

.crumbs {
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.6;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.crumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
}

.crumbs li + li::before {
  content: "/";
  margin-inline: 9px;
  color: #3A3F4A;
}

.crumbs a {
  text-decoration: none;
  transition: color 0.18s var(--ease);
}

.crumbs a:hover { color: var(--gold-lite); }

/* ---------- 图片容器基础规则 ---------- */
.figure {
  position: relative;
  display: block;
  overflow: hidden;
  border: 1px solid var(--grid);
  background-color: var(--ink-2);
}

.figure > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.72) contrast(1.06) brightness(0.88);
  transition: transform 0.5s var(--ease), filter 0.5s var(--ease);
}

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

.figure--gradient {
  background-image: linear-gradient(160deg, #C8A05A 0%, #5A4526 42%, #0B0B0D 100%);
}

.figure--gradient::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(90deg, rgba(11, 11, 13, 0.5) 1px, transparent 1px);
  background-size: 25% 100%;
  opacity: 0.6;
  pointer-events: none;
}

.figure__caption {
  margin-top: 10px;
  padding-top: 8px;
  border-top: 1px solid var(--grid);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.7;
  letter-spacing: 0.08em;
  color: var(--muted);
}

/* ==========================================================================
   页脚
   ========================================================================== */
.site-foot {
  position: relative;
  margin-top: clamp(56px, 7vw, 110px);
  border-top: 1px solid rgba(200, 160, 90, 0.55);
  background-color: var(--ink);
  background-image: radial-gradient(120% 80% at 50% 0%, rgba(90, 69, 38, 0.26) 0%, rgba(11, 11, 13, 0) 62%);
  color: var(--muted);
}

.site-foot__stamp {
  position: absolute;
  top: -10px;
  right: var(--gutter);
  padding: 0 10px;
  background-color: var(--ink);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 20px;
  letter-spacing: 0.2em;
  color: var(--gold);
}

.site-foot__inner {
  padding-block: clamp(40px, 5vw, 60px) 26px;
}

.site-foot__grid {
  display: grid;
  grid-template-columns: 3fr 2fr 2fr 2fr 3fr;
  gap: clamp(24px, 3vw, 48px);
  padding-bottom: clamp(28px, 3vw, 40px);
  border-bottom: 1px solid var(--grid);
}

.site-foot__brand-line {
  font-family: var(--font-display);
  font-size: clamp(21px, 2.2vw, 28px);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: 0.12em;
  color: var(--paper);
}

.site-foot__note {
  margin-top: 12px;
  max-width: 32ch;
  font-size: 13px;
  line-height: 1.85;
  color: var(--muted);
}

.site-foot__build {
  margin-top: 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.6;
  letter-spacing: 0.12em;
  color: var(--gold);
}

.site-foot__col h2,
.site-foot__contact h2 {
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--grid);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  line-height: 1;
  letter-spacing: 0.24em;
  color: var(--gold);
}

.site-foot__col a {
  display: inline-block;
  padding-block: 5px;
  font-size: 14px;
  line-height: 1.5;
  color: var(--muted);
  text-decoration: none;
  transition: color 0.18s var(--ease), transform 0.18s var(--ease);
}

.site-foot__col a:hover,
.site-foot__col a:focus-visible {
  color: var(--paper);
  transform: translateX(3px);
}

.site-foot__contact dl {
  display: grid;
  gap: 4px;
}

.site-foot__contact dt {
  font-family: var(--font-mono);
  font-size: 10px;
  line-height: 1.6;
  letter-spacing: 0.2em;
  color: var(--muted);
}

.site-foot__contact dt:not(:first-of-type) { margin-top: 8px; }

.site-foot__contact dd {
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--paper);
  word-break: break-word;
}

.site-foot__hours {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px dashed var(--grid);
  font-size: 12px;
  line-height: 1.8;
  color: var(--muted);
}

.site-foot__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 24px;
  padding-top: 22px;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.6;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.site-foot__icp { color: var(--gold); }

/* ---------- 返回顶部 ---------- */
.to-top {
  position: fixed;
  right: clamp(14px, 2.4vw, 28px);
  bottom: clamp(14px, 2.4vw, 28px);
  z-index: 70;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  padding: 0;
  border: 1px solid rgba(200, 160, 90, 0.5);
  border-radius: 0;
  background-color: var(--ink-2);
  color: var(--gold);
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity 0.24s var(--ease), transform 0.24s var(--ease), visibility 0.24s var(--ease),
    color 0.2s var(--ease), background-color 0.2s var(--ease);
}

.to-top[data-visible="true"] {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.to-top:hover {
  background-color: var(--gold);
  color: var(--ink);
}

/* ==========================================================================
   响应式
   ========================================================================== */
@media (max-width: 1100px) {
  .primary-nav__list a { padding-inline: 18px; letter-spacing: 0.14em; }
  .primary-nav__list a::after { left: 18px; right: 18px; }
  .site-foot__grid { grid-template-columns: 3fr 2fr 2fr 2fr; }
  .site-foot__contact { grid-column: 1 / -1; padding-top: 22px; border-top: 1px solid var(--grid); }
  .site-foot__contact dl { grid-template-columns: repeat(3, minmax(0, 1fr)); column-gap: 24px; }
  .site-foot__hours { max-width: 60ch; }
}

@media (max-width: 960px) {
  .span-3,
  .span-4,
  .span-5 { grid-column: span 6; }
  .span-7,
  .span-8,
  .span-9 { grid-column: span 12; }
}

@media (max-width: 900px) {
  html { scroll-padding-top: 110px; }

  .masthead {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 10px 12px;
    padding-block: 12px;
  }

  .masthead__brand {
    order: 1;
    justify-items: start;
    gap: 6px;
  }

  .masthead__brand-line {
    font-size: 19px;
    letter-spacing: 0.1em;
  }

  .masthead__tagline { display: none; }

  .masthead__meta {
    order: 2;
    gap: 8px;
  }

  .masthead__readout {
    order: 3;
    flex: 1 0 100%;
    font-size: 10px;
    letter-spacing: 0.1em;
  }

  .masthead__cta { display: none; }

  .head-section { display: none !important; }

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

  .primary-nav {
    border-top: 1px solid var(--grid);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.28s var(--ease);
  }

  .primary-nav[data-open="true"] {
    max-height: 460px;
  }

  .primary-nav__list {
    flex-direction: column;
    align-items: stretch;
    padding-block: 6px;
  }

  .primary-nav__list li + li {
    border-left: 0;
    border-top: 1px solid var(--grid-soft);
  }

  .primary-nav__list a {
    padding: 14px 2px;
    font-size: 14px;
    letter-spacing: 0.18em;
  }

  .primary-nav__list a::after {
    left: 2px;
    right: auto;
    bottom: 11px;
    width: 26px;
  }

  .site-head.is-condensed .primary-nav__list a { padding-block: 12px; }

  .site-foot__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .site-foot__brand { grid-column: 1 / -1; }
  .site-foot__contact { grid-column: 1 / -1; }
  .site-foot__contact dl { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .span-3,
  .span-4,
  .span-5,
  .span-6,
  .span-7,
  .span-8,
  .span-9 { grid-column: span 12; }

  .site-foot__grid { grid-template-columns: 1fr; gap: 26px; }
  .site-foot__bottom { flex-direction: column; align-items: flex-start; }
  .site-foot__stamp { right: 16px; }
  .to-top { width: 42px; height: 42px; }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

  .to-top { transform: none; }
  .site-foot__col a:hover { transform: none; }
}