/* ============================================================
   LUMIÈRE 夜色会所 — 霓虹夜店风样式
   配色：暗紫黑底 + 霓虹品红 + 霓虹青 + 香槟金
   ============================================================ */

:root {
  --bg: #0a0410;
  --bg-2: #120720;
  --surface: #180c28;
  --surface-2: #1f0f33;
  --ink: #f4ecff;
  --ink-soft: #b8a9cf;
  --ink-mute: #7c6d92;
  --magenta: #ff2e88;
  --magenta-soft: #ff6fb0;
  --cyan: #21e6ff;
  --gold: #e7c179;
  --line: rgba(255, 255, 255, 0.08);
  --radius: 16px;
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.55);
  --glow-m: 0 0 24px rgba(255, 46, 136, 0.55);
  --glow-c: 0 0 24px rgba(33, 230, 255, 0.45);
  --font-serif: "Noto Serif SC", "Cinzel", serif;
  --font-sans: "Noto Sans SC", system-ui, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; background: var(--bg); }

body {
  font-family: var(--font-sans);
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(255, 46, 136, 0.14), transparent 60%),
    radial-gradient(900px 500px at 0% 20%, rgba(33, 230, 255, 0.1), transparent 55%),
    var(--bg);
  color: var(--ink);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

.wrap { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 24px; }

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

/* ---------- 品牌标识 ---------- */
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark {
  width: 42px; height: 42px; border-radius: 12px;
  display: grid; place-items: center;
  font-family: var(--font-serif); font-weight: 700; font-size: 22px;
  color: #12061e;
  background: linear-gradient(135deg, var(--gold), #fff0cf);
  box-shadow: 0 0 18px rgba(231, 193, 121, 0.5);
}
.brand-text {
  font-family: var(--font-serif); font-weight: 700; letter-spacing: 3px;
  font-size: 18px; line-height: 1; display: flex; flex-direction: column; gap: 4px;
}
.brand-text small { font-family: var(--font-sans); font-weight: 400; font-size: 11px; letter-spacing: 4px; color: var(--gold); }

/* ---------- 顶部导航 ---------- */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 50;
  transition: background .35s ease, backdrop-filter .35s ease, border-color .35s ease;
  border-bottom: 1px solid transparent;
}
.site-header.scrolled {
  background: rgba(10, 4, 16, 0.82);
  backdrop-filter: blur(14px);
  border-bottom-color: var(--line);
}
.header-inner { display: flex; align-items: center; height: 76px; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 30px; border-radius: 999px; font-size: 15px; font-weight: 500;
  cursor: pointer; border: 0; transition: transform .2s ease, box-shadow .25s ease, background .25s;
}
.btn:active { transform: translateY(1px); }
.btn-primary {
  color: #14061f; font-weight: 600;
  background: linear-gradient(120deg, var(--magenta), var(--magenta-soft));
  box-shadow: var(--glow-m);
}
.btn-primary:hover { box-shadow: 0 0 34px rgba(255, 46, 136, 0.75); transform: translateY(-2px); }
.btn-ghost { color: var(--ink); background: rgba(255, 255, 255, 0.06); border: 1px solid var(--line); }
.btn-ghost:hover { border-color: var(--cyan); color: var(--cyan); box-shadow: var(--glow-c); }
.btn-block { width: 100%; }

/* ---------- 主视觉 ---------- */
.hero { position: relative; min-height: 100vh; display: flex; align-items: center; overflow: hidden; }
.hero-bg {
  position: absolute; inset: 0; background-size: cover; background-position: center;
  transform: scale(1.08); animation: heroZoom 18s ease-in-out infinite alternate;
}
@keyframes heroZoom { to { transform: scale(1.18); } }
.hero-overlay {
  position: absolute; inset: 0;
  background:
    linear-gradient(180deg, rgba(10, 4, 16, 0.55) 0%, rgba(10, 4, 16, 0.35) 40%, rgba(10, 4, 16, 0.95) 100%),
    linear-gradient(90deg, rgba(10, 4, 16, 0.85), transparent 60%);
}
.hero-content { position: relative; z-index: 2; padding-top: 80px; }
.eyebrow { color: var(--cyan); letter-spacing: 4px; font-size: 14px; margin-bottom: 18px; text-shadow: var(--glow-c); display: inline-flex; align-items: center; gap: 10px; }
.eyebrow-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--cyan); box-shadow: var(--glow-c); flex: none; }
.hero-title {
  font-family: var(--font-serif); font-weight: 700; font-size: clamp(3rem, 9vw, 6.5rem);
  line-height: 1.05; letter-spacing: 2px; margin-bottom: 22px;
  background: linear-gradient(120deg, #fff 20%, var(--magenta-soft) 60%, var(--gold));
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
  text-wrap: balance;
}
.hero-sub { color: var(--ink-soft); font-size: clamp(1rem, 2vw, 1.2rem); max-width: 560px; margin-bottom: 34px; font-weight: 300; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 56px; }
.hero-stats { display: flex; gap: 48px; flex-wrap: wrap; }
.hero-stats div { display: flex; flex-direction: column; }
.hero-stats strong { font-family: var(--font-serif); font-size: 2rem; color: var(--gold); }
.hero-stats span { font-size: 13px; color: var(--ink-mute); letter-spacing: 2px; }
.scroll-hint {
  position: absolute; bottom: 26px; left: 50%; transform: translateX(-50%);
  font-size: 12px; letter-spacing: 3px; color: var(--ink-mute); z-index: 2;
  animation: bounce 2s infinite;
}
@keyframes bounce { 0%,100% { transform: translateX(-50%) translateY(0); } 50% { transform: translateX(-50%) translateY(8px); } }

/* ---------- 通用区块 ---------- */
.section { padding: 110px 0; position: relative; }
.section-dark { background: linear-gradient(180deg, var(--bg-2), var(--bg)); }
.section-head { text-align: center; max-width: 640px; margin: 0 auto 56px; }
.section-tag { color: var(--cyan); letter-spacing: 5px; font-size: 13px; margin-bottom: 12px; }
.section-title {
  font-family: var(--font-serif); font-weight: 700; font-size: clamp(2rem, 5vw, 3rem);
  letter-spacing: 2px; margin-bottom: 16px;
}
.section-title::after {
  content: ""; display: block; width: 64px; height: 3px; margin: 18px auto 0;
  background: linear-gradient(90deg, var(--magenta), var(--cyan)); border-radius: 3px;
}
.section-desc { color: var(--ink-soft); font-weight: 300; }

/* ---------- 佳丽画廊 ---------- */
.gallery-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); grid-auto-rows: 240px; gap: 18px;
}
.g-card {
  position: relative; overflow: hidden; border-radius: var(--radius); cursor: pointer;
  border: 1px solid var(--line); box-shadow: var(--shadow);
}
.g-tall { grid-row: span 2; }
.g-wide { grid-column: span 2; }
.g-card img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; display: block; }
.g-card:hover img { transform: scale(1.08); }
.g-card::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 45%, rgba(10, 4, 16, 0.9));
}
.g-card figcaption {
  position: absolute; left: 18px; bottom: 16px; z-index: 2;
  display: flex; flex-direction: column; gap: 3px;
}
.g-name { font-family: var(--font-serif); font-size: 20px; font-weight: 600; }
.g-tag { font-size: 12px; color: var(--magenta-soft); letter-spacing: 2px; }
.g-card { transition: box-shadow .3s; }
.g-card:hover { box-shadow: 0 0 30px rgba(255, 46, 136, 0.4); border-color: var(--magenta); }

/* ---------- 视频窗口 ---------- */
.video-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.video-card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; box-shadow: var(--shadow); transition: border-color .3s, box-shadow .3s;
}
.video-card:hover { border-color: var(--cyan); box-shadow: var(--glow-c); }
.video-frame {
  position: relative; aspect-ratio: 16 / 10; background: #06030c;
}
.video-frame video { width: 100%; height: 100%; object-fit: cover; background: #000; display: block; }
.video-meta { display: flex; align-items: center; justify-content: space-between; padding: 14px 16px; gap: 10px; }
.video-meta h4 { font-size: 15px; font-weight: 500; }

/* ---------- 页脚 ---------- */
.site-footer { border-top: 1px solid var(--line); padding: 40px 0; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.footer-copy { color: var(--ink-mute); font-size: 13px; font-weight: 300; }

/* ---------- 灯箱 ---------- */
.lightbox {
  position: fixed; inset: 0; z-index: 100; display: none; place-items: center;
  background: rgba(6, 3, 12, 0.92); backdrop-filter: blur(6px); padding: 40px;
}
.lightbox.open { display: grid; animation: fade .25s ease; }
.lightbox img { max-width: 90vw; max-height: 86vh; border-radius: 12px; box-shadow: var(--shadow); }
.lightbox-close {
  position: absolute; top: 24px; right: 30px; font-size: 40px; line-height: 1;
  background: none; border: 0; color: var(--ink); cursor: pointer; opacity: .8;
}
.lightbox-close:hover { opacity: 1; color: var(--magenta); }
@keyframes fade { from { opacity: 0; } to { opacity: 1; } }

/* ---------- 进场动画 ---------- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ---------- 响应式 ---------- */
@media (max-width: 900px) {
  .gallery-grid { grid-template-columns: repeat(2, 1fr); grid-auto-rows: 200px; }
  .g-wide { grid-column: span 2; }
  .video-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .wrap { padding: 0 18px; }
  .section { padding: 72px 0; }
  .hero-stats { gap: 28px; }
  .gallery-grid { grid-template-columns: 1fr; grid-auto-rows: 260px; }
  .g-tall, .g-wide { grid-column: auto; grid-row: auto; }
  .video-grid { grid-template-columns: 1fr; }
  .brand-text { font-size: 16px; }
}

@media (prefers-reduced-motion: reduce) {
  .hero-bg { animation: none; }
  .reveal { transition: none; opacity: 1; transform: none; }
  .scroll-hint { animation: none; }
}