/* ===================================================================
   Beyond Travel 优越旅游 — 整站设计系统
   深色奢华风 · 中英双语 · 响应式
   =================================================================== */

:root {
  --dark:        #080e1a;
  --dark-2:      #0d1929;
  --dark-3:      #142238;
  --dark-4:      #1b2c45;
  --gold:        #d4af37;
  --gold-light:  #f0d060;
  --gold-soft:   rgba(212, 175, 55, 0.15);
  --text:        #f0f4f8;
  --text-muted:  #8899aa;
  --text-dim:    rgba(136, 153, 170, 0.55);
  --maxw:        1240px;
  --ease:        cubic-bezier(0.22, 1, 0.36, 1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Raleway', 'Noto Sans SC', sans-serif;
  background: var(--dark);
  color: var(--text);
  overflow-x: hidden;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3, h4 { font-family: 'Cormorant Garamond', 'Noto Serif SC', serif; font-weight: 600; line-height: 1.15; }
a { text-decoration: none; color: inherit; }
img { display: block; max-width: 100%; }
ul { list-style: none; }

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 40px; }

/* eyebrow / section heading */
.eyebrow {
  font-size: 12px; letter-spacing: 4px; text-transform: uppercase;
  color: var(--gold); font-weight: 700; margin-bottom: 18px;
  display: inline-block;
}
.section-title { font-size: clamp(30px, 5vw, 54px); color: var(--text); margin-bottom: 18px; }
.section-sub { color: var(--text-muted); max-width: 620px; font-size: 16px; }
.section { padding: 110px 0; }
.center { text-align: center; }
.center .section-sub { margin-left: auto; margin-right: auto; }
.gold-line { width: 60px; height: 2px; background: linear-gradient(90deg, var(--gold), transparent); margin: 22px 0; }
.center .gold-line { margin-left: auto; margin-right: auto; background: linear-gradient(90deg, transparent, var(--gold), transparent); }

/* ===== NAVBAR ===== */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 40px; height: 76px;
  background: linear-gradient(180deg, rgba(8,14,26,0.96), rgba(8,14,26,0.78));
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--gold-soft);
  transition: all 0.35s var(--ease);
}
.navbar.scrolled { height: 62px; background: rgba(8,14,26,0.98); }
.nav-logo { display: flex; align-items: center; gap: 12px; }
.nav-logo img { height: 44px; width: auto; transition: height 0.35s var(--ease); }
.navbar.scrolled .nav-logo img { height: 36px; }
.nav-logo .brand-txt { font-family: 'Cormorant Garamond', serif; font-size: 20px; letter-spacing: 1px; color: var(--text); }
.nav-logo .brand-txt span { display: block; font-family: 'Raleway', sans-serif; font-size: 9px; letter-spacing: 3px; color: var(--gold); text-transform: uppercase; }
.nav-links { display: flex; gap: clamp(14px, 2vw, 28px); align-items: center; }
.nav-links a {
  font-size: 12px; letter-spacing: 1.5px; text-transform: uppercase;
  color: rgba(240,244,248,0.78); font-weight: 600; position: relative; padding-bottom: 4px;
  transition: color 0.2s;
}
.nav-links a::after { content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 1px; background: var(--gold); transform: scaleX(0); transform-origin: center; transition: transform 0.28s var(--ease); }
.nav-links a:hover, .nav-links a.active { color: var(--gold-light); }
.nav-links a:hover::after, .nav-links a.active::after { transform: scaleX(1); }
.nav-right { display: flex; align-items: center; gap: 10px; }
.lang-btn {
  background: transparent; border: 1px solid rgba(212,175,55,0.35); color: var(--text-muted);
  padding: 6px 13px; font-size: 11px; letter-spacing: 1px; cursor: pointer; border-radius: 2px;
  font-family: 'Raleway', sans-serif; font-weight: 700; transition: all 0.2s;
}
.lang-btn.active, .lang-btn:hover { background: var(--gold); color: var(--dark); border-color: var(--gold); }
.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 6px; }
.nav-toggle span { width: 24px; height: 2px; background: var(--gold); transition: 0.3s; }

/* mobile menu */
.mobile-menu {
  position: fixed; inset: 0; z-index: 999; background: rgba(8,14,26,0.98); backdrop-filter: blur(10px);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 30px;
  opacity: 0; pointer-events: none; transition: opacity 0.35s var(--ease);
}
.mobile-menu.open { opacity: 1; pointer-events: auto; }
.mobile-menu a { font-family: 'Cormorant Garamond', serif; font-size: 30px; color: var(--text); letter-spacing: 1px; }
.mobile-menu a:hover { color: var(--gold-light); }

@media (max-width: 960px) {
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  .navbar { padding: 0 22px; }
  .mobile-menu { justify-content: flex-start; gap: 18px; padding: 96px 22px 42px; overflow-y: auto; }
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex; align-items: center; gap: 10px; cursor: pointer;
  font-family: 'Raleway', sans-serif; font-weight: 700; font-size: 13px; letter-spacing: 1.5px;
  text-transform: uppercase; padding: 16px 34px; border-radius: 2px; transition: all 0.3s var(--ease);
  border: 1px solid var(--gold);
}
.btn-gold { background: var(--gold); color: var(--dark); }
.btn-gold:hover { background: var(--gold-light); transform: translateY(-2px); box-shadow: 0 12px 30px rgba(212,175,55,0.25); }
.btn-ghost { background: transparent; color: var(--gold-light); }
.btn-ghost:hover { background: var(--gold-soft); transform: translateY(-2px); }

/* ===== CARDS (destination / tour) ===== */
.grid { display: grid; gap: 28px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  position: relative; border-radius: 8px; overflow: hidden; background: var(--dark-2);
  border: 1px solid rgba(255,255,255,0.05); transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease);
}
.card:hover { transform: translateY(-6px); box-shadow: 0 22px 50px rgba(0,0,0,0.5); }

/* big destination tile with image bg */
.tile {
  position: relative; height: 420px; border-radius: 8px; overflow: hidden; display: flex;
  align-items: flex-end; background-size: cover; background-position: center;
  background-color: var(--dark-3); transition: transform 0.5s var(--ease);
}
.tile::before { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(8,14,26,0.05) 30%, rgba(8,14,26,0.92) 100%); transition: background 0.4s; }
.tile:hover { transform: scale(1.015); }
.tile:hover::before { background: linear-gradient(180deg, rgba(8,14,26,0.1) 20%, rgba(8,14,26,0.88) 100%); }
.tile .tile-body { position: relative; z-index: 2; padding: 34px; width: 100%; }
.tile .tile-body h3 { font-size: 34px; color: #fff; }
.tile .tile-body .cn { font-size: 16px; color: var(--gold-light); letter-spacing: 2px; font-family: 'Noto Serif SC', serif; }
.tile .tile-body p { color: var(--text-muted); font-size: 14px; margin-top: 8px; }
.tile .tile-tag { position: absolute; top: 22px; left: 22px; z-index: 2; background: var(--gold); color: var(--dark); font-size: 11px; font-weight: 700; letter-spacing: 1px; padding: 5px 12px; border-radius: 2px; text-transform: uppercase; }

/* tour card */
.tour-img { height: 220px; background-size: cover; background-position: center; background-color: var(--dark-3); position: relative; }
.tour-img .price { position: absolute; bottom: 0; right: 0; background: rgba(8,14,26,0.85); backdrop-filter: blur(4px); color: var(--gold-light); font-weight: 700; padding: 8px 16px; font-size: 15px; border-top-left-radius: 6px; }
.tour-img .badge { position: absolute; top: 14px; left: 14px; background: var(--gold); color: var(--dark); font-size: 10px; font-weight: 700; letter-spacing: 1px; padding: 4px 10px; border-radius: 2px; text-transform: uppercase; }
.tour-body { padding: 24px; }
.tour-body .days { font-size: 11px; letter-spacing: 2px; color: var(--gold); text-transform: uppercase; font-weight: 700; }
.tour-body h3 { font-size: 24px; margin: 8px 0 6px; color: var(--text); }
.tour-body p { color: var(--text-muted); font-size: 13.5px; margin-bottom: 16px; min-height: 42px; }
.tour-body .tour-link { font-size: 12px; letter-spacing: 1.5px; text-transform: uppercase; color: var(--gold-light); font-weight: 700; display: inline-flex; align-items: center; gap: 6px; }
.tour-body .tour-link:hover { gap: 12px; }

/* feature / why-us */
.feature { padding: 36px 28px; border: 1px solid rgba(255,255,255,0.06); border-radius: 8px; background: var(--dark-2); transition: all 0.35s var(--ease); }
.feature:hover { border-color: var(--gold-soft); background: var(--dark-3); transform: translateY(-4px); }
.feature .icon { font-size: 30px; margin-bottom: 16px; }
.feature h3 { font-size: 23px; color: var(--text); margin-bottom: 10px; }
.feature p { color: var(--text-muted); font-size: 14px; }

/* stat */
.stat .num { font-family: 'Cormorant Garamond', serif; font-size: 56px; color: var(--gold-light); font-weight: 600; }
.stat .lbl { font-size: 12px; letter-spacing: 2px; text-transform: uppercase; color: var(--text-muted); }

/* testimonial */
.quote { padding: 36px; border-radius: 8px; background: var(--dark-2); border: 1px solid rgba(255,255,255,0.05); }
.quote .stars { color: var(--gold); letter-spacing: 3px; margin-bottom: 14px; }
.quote p { font-family: 'Cormorant Garamond', serif; font-size: 21px; font-style: italic; color: var(--text); line-height: 1.5; margin-bottom: 18px; }
.quote .who { font-size: 13px; color: var(--gold-light); letter-spacing: 1px; font-weight: 600; }

/* promo banner */
.promo {
  position: relative; overflow: hidden; border-radius: 12px;
  background: linear-gradient(135deg, var(--dark-3), var(--dark-2)); border: 1px solid var(--gold-soft);
  padding: 56px 50px; display: flex; align-items: center; justify-content: space-between; gap: 40px; flex-wrap: wrap;
}
.promo::after { content: ''; position: absolute; top: -60%; right: -10%; width: 380px; height: 380px; background: radial-gradient(circle, rgba(212,175,55,0.18), transparent 70%); }
.promo .promo-txt { position: relative; z-index: 2; max-width: 620px; }
.promo .promo-txt h2 { font-size: clamp(28px, 4vw, 44px); color: #fff; margin-bottom: 12px; }
.promo .promo-txt p { color: var(--text-muted); }
.promo .promo-cta { position: relative; z-index: 2; }

/* ===== PAGE HERO (interior pages) ===== */
.page-hero {
  position: relative; min-height: 60vh; display: flex; align-items: center; justify-content: center;
  text-align: center; background-size: cover; background-position: center; background-color: var(--dark-2);
  padding: 140px 20px 80px;
}
.page-hero::before { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(8,14,26,0.7), rgba(8,14,26,0.85)); }
.page-hero .ph-inner { position: relative; z-index: 2; max-width: 760px; }
.page-hero h1 { font-size: clamp(40px, 7vw, 76px); color: #fff; margin-bottom: 16px; }
.page-hero .ph-sub { color: var(--text); opacity: 0.9; font-size: 17px; }

/* breadcrumb */
.crumb { font-size: 12px; letter-spacing: 1.5px; color: var(--text-muted); text-transform: uppercase; margin-bottom: 14px; }
.crumb a:hover { color: var(--gold-light); }

/* ===== FOOTER ===== */
.site-footer { background: var(--dark-2); border-top: 1px solid var(--gold-soft); padding: 70px 0 30px; margin-top: 0; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 40px; padding-bottom: 50px; }
.footer-grid h4 { font-family: 'Raleway', sans-serif; font-size: 12px; letter-spacing: 2px; text-transform: uppercase; color: var(--gold); margin-bottom: 20px; font-weight: 700; }
.footer-grid img.flogo { height: 60px; margin-bottom: 18px; }
.footer-grid .fbrand { font-family: 'Cormorant Garamond', serif; font-size: 24px; color: var(--text); }
.footer-grid p, .footer-grid li { color: var(--text-muted); font-size: 13.5px; margin-bottom: 10px; }
.footer-grid a:hover { color: var(--gold-light); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.06); padding-top: 26px; text-align: center; }
.footer-bottom p { font-size: 11px; color: var(--text-dim); letter-spacing: 1px; }

/* whatsapp float */
.wa-float { position: fixed; bottom: 24px; right: 24px; z-index: 900; width: 56px; height: 56px; border-radius: 50%; background: #25d366; display: flex; align-items: center; justify-content: center; box-shadow: 0 8px 24px rgba(37,211,102,0.4); transition: transform 0.3s; }
.wa-float:hover { transform: scale(1.08); }

/* reveal animation: content is visible by default for crawlers/no-JS; JS opts in */
.reveal { opacity: 1; transform: translateY(0); transition: opacity 0.8s var(--ease), transform 0.8s var(--ease); }
.reveal.is-animated { opacity: 0; transform: translateY(36px); }
.reveal.is-animated.in { opacity: 1; transform: translateY(0); }

/* article body */
.article { max-width: 760px; margin: 0 auto; padding: 80px 24px; }
.article h2 { font-size: 34px; color: var(--text); margin: 40px 0 16px; }
.article h3 { font-size: 25px; color: var(--gold-light); margin: 30px 0 12px; }
.article p { color: #c4cfdb; font-size: 16.5px; margin-bottom: 20px; }
.article img { border-radius: 8px; margin: 28px 0; width: 100%; }
.article .lead { font-size: 20px; color: var(--text); font-family: 'Cormorant Garamond', serif; font-style: italic; line-height: 1.5; }

/* ===== RESPONSIVE ===== */
@media (max-width: 980px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 760px) {
  .container { padding: 0 22px; }
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  .section { padding: 72px 0; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .promo { padding: 40px 28px; }
  .tile { height: 360px; }
  .navbar { padding: 0 22px; }
  .nav-logo .brand-txt { font-size: 17px; }
}


/* NAV-DROPDOWN */
.has-drop { position: relative; }
.dropdown {
  position: absolute; top: 100%; left: 50%;
  transform: translateX(-50%) translateY(8px);
  min-width: 186px; background: rgba(13,25,41,0.98); backdrop-filter: blur(12px);
  border: 1px solid var(--gold-soft); border-radius: 6px; padding: 8px;
  display: flex; flex-direction: column; gap: 2px;
  opacity: 0; visibility: hidden; transition: all 0.25s var(--ease); z-index: 1001;
}
.dropdown::before { content: ''; position: absolute; top: -14px; left: 0; right: 0; height: 14px; }
.has-drop:hover .dropdown { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(2px); }
.dropdown a { font-size: 13px; letter-spacing: 0.5px; text-transform: none; color: rgba(240,244,248,0.82); font-weight: 600; padding: 9px 15px; border-radius: 4px; white-space: nowrap; }
.dropdown a::after { display: none; }
.dropdown a:hover { background: var(--gold-soft); color: var(--gold-light); }
.mobile-menu .mm-group { font-family: 'Raleway', sans-serif; font-size: 12px; letter-spacing: 3px; color: var(--gold); text-transform: uppercase; margin-top: 12px; }
.mobile-menu .mm-sub { font-size: 22px; }

/* SERVICES PAGE */
.svc-row { display: grid; grid-template-columns: 1fr 1fr; gap: 44px; align-items: center; padding: 40px 0; border-bottom: 1px solid rgba(255,255,255,0.07); }
.svc-row:nth-child(even) .svc-txt { order: 2; }
.svc-row .svc-img { height: 320px; border-radius: 10px; background-size: cover; background-position: center; background-color: var(--dark-3); }
.svc-row .svc-txt .ic { font-size: 32px; margin-bottom: 10px; }
.svc-row .svc-txt h3 { font-size: clamp(24px, 3vw, 34px); color: var(--text); margin-bottom: 12px; }
.svc-row .svc-txt p { color: var(--text-muted); font-size: 15px; margin-bottom: 18px; line-height: 1.75; }
.svc-row .svc-txt ul { margin: 0 0 20px 18px; color: var(--text-muted); font-size: 14px; }
.svc-row .svc-txt li { margin-bottom: 6px; }
@media (max-width: 820px) {
  .svc-row { grid-template-columns: 1fr; gap: 22px; }
  .svc-row:nth-child(even) .svc-txt { order: 0; }
  .svc-row .svc-img { height: 220px; }
}