:root {
  --bg: #eef4fb;
  --bg2: #f7fbff;
  --primary: #155ca8;
  --primary-deep: #0b3f74;
  --secondary: #16a085;
  --secondary-deep: #0f7a65;
  --accent: #ffb14a;
  --text: #1b2f46;
  --muted: #61758b;
  --line: rgba(21, 92, 168, 0.12);
  --white: #ffffff;
  --dark: #0e2e4d;
  --dark2: #133b61;
  --wrap: 1200px;
  --shadow: 0 24px 70px rgba(13, 62, 116, 0.14);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background:
    linear-gradient(180deg, rgba(238,244,251,0.94), rgba(247,251,255,0.98)),
    url('https://images.unsplash.com/photo-1576091160399-112ba8d25d1d?auto=format&fit=crop&w=1800&q=80') center top / cover fixed no-repeat;
  line-height: 1.75;
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img { max-width: 100%; display: block; }
.wrap { width: min(var(--wrap), calc(100% - 32px)); margin: 0 auto; }

.page-shell { overflow: hidden; }

.hero {
  position: relative;
  min-height: 760px;
  padding: 24px 0 70px;
  background:
    linear-gradient(115deg, rgba(9, 43, 84, 0.92) 0%, rgba(12, 67, 115, 0.86) 48%, rgba(13, 108, 123, 0.74) 100%),
    url('https://images.unsplash.com/photo-1584515933487-779824d29309?auto=format&fit=crop&w=1600&q=80') center / cover no-repeat;
  color: #fff;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 15% 15%, rgba(255,255,255,0.16), transparent 20%),
    radial-gradient(circle at 80% 28%, rgba(255,177,74,0.22), transparent 18%),
    linear-gradient(180deg, transparent, rgba(3,19,36,0.18));
}

.hero-topbar,
.hero-content,
.hero-stats { position: relative; z-index: 2; }

.hero-topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 8px 0 26px;
  flex-wrap: wrap;
}

.hero-mini {
  font-size: 14px;
  letter-spacing: .08em;
  color: rgba(255,255,255,0.86);
}

.hero-mini-list { display: flex; gap: 12px; flex-wrap: wrap; }
.hero-mini-list span {
  padding: 6px 12px;
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 999px;
  color: rgba(255,255,255,0.88);
  background: rgba(255,255,255,0.06);
}

.hero-content {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) 420px;
  gap: 32px;
  align-items: center;
  padding-top: 30px;
}

.hero-kicker,
.section-title span {
  display: inline-flex;
  align-items: center;
  padding: 7px 14px;
  border-radius: 999px;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.16);
  font-size: 13px;
  letter-spacing: .12em;
  margin-bottom: 18px;
}

.hero-left h1 {
  font-size: clamp(40px, 6vw, 72px);
  line-height: 1.08;
  margin-bottom: 18px;
}

.hero-left p {
  max-width: 720px;
  color: rgba(255,255,255,0.82);
  font-size: 17px;
}

.hero-actions {
  margin-top: 30px;
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  min-height: 50px;
  padding: 0 26px;
  border-radius: 999px;
  font-weight: 700;
  transition: transform .2s ease, box-shadow .2s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary {
  background: linear-gradient(135deg, var(--accent), #ff8f2f);
  color: #10283e;
  box-shadow: 0 18px 40px rgba(255, 149, 47, 0.26);
}
.btn-ghost {
  color: #fff;
  border: 1px solid rgba(255,255,255,0.22);
  background: rgba(255,255,255,0.08);
}

.booking-card {
  padding: 28px;
  border-radius: 28px;
  background: rgba(255,255,255,0.94);
  color: var(--text);
  box-shadow: var(--shadow);
}

.booking-head small {
  display: block;
  color: var(--secondary-deep);
  margin-bottom: 6px;
  font-weight: 700;
}
.booking-head h2 { font-size: 30px; line-height: 1.2; margin-bottom: 18px; color: var(--primary-deep); }

.booking-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.booking-grid article {
  padding: 18px;
  border-radius: 18px;
  background: linear-gradient(180deg, #f7fbff, #eef6ff);
  border: 1px solid rgba(21,92,168,0.08);
}
.booking-grid strong { display: block; margin-bottom: 6px; color: var(--primary-deep); }
.booking-grid p { color: var(--muted); font-size: 14px; }

.hero-stats {
  margin-top: 34px;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}
.hero-stats article {
  padding: 22px;
  border-radius: 22px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.12);
  backdrop-filter: blur(10px);
}
.hero-stats strong { display: block; margin-bottom: 8px; color: rgba(255,255,255,0.76); }
.hero-stats span { font-size: 18px; font-weight: 700; }

.section { padding: 78px 0; }
.main-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) 380px;
  gap: 26px;
  align-items: start;
}
.content-panel {
  background: rgba(255,255,255,0.95);
  border-radius: 30px;
  box-shadow: var(--shadow);
  border: 1px solid rgba(255,255,255,0.7);
}
.large-panel { padding: 34px; }
.small-panel { padding: 28px; }
.accent-panel {
  background: linear-gradient(180deg, rgba(17,94,167,0.98), rgba(22,160,133,0.94));
  color: #fff;
}
.note-panel { margin-top: 20px; }

.section-title h2 {
  font-size: 38px;
  line-height: 1.18;
  color: var(--primary-deep);
}
.section-title.compact h2 { font-size: 28px; }
.white-title h2 { color: #fff; }
.accent-panel .section-title span,
.white-title span { background: rgba(255,255,255,0.12); color: #fff; border-color: rgba(255,255,255,0.16); }
.section-desc { margin-top: 12px; color: var(--muted); }
.light-desc { color: rgba(255,255,255,0.78); }
.center-title, .center-desc { text-align: center; }
.center-desc { max-width: 860px; margin: 12px auto 0; }

.guide-steps {
  margin-top: 28px;
  display: grid;
  gap: 16px;
}
.guide-steps article {
  display: grid;
  grid-template-columns: 84px 1fr;
  gap: 18px;
  padding: 22px;
  background: linear-gradient(180deg, #fbfdff, #f0f7ff);
  border-radius: 22px;
  border: 1px solid rgba(21,92,168,0.08);
}
.guide-steps em,
.feature-strip em {
  font-style: normal;
  width: 84px;
  height: 84px;
  border-radius: 24px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  font-size: 24px;
  font-weight: 700;
}

.tip-list { display: grid; gap: 12px; margin-top: 18px; }
.tip-list li {
  position: relative;
  padding-left: 22px;
  color: rgba(255,255,255,0.9);
}
.tip-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #fff;
}
.note-panel p + p { margin-top: 12px; }

.section-dark {
  background: linear-gradient(135deg, rgba(8,45,82,0.98), rgba(15,94,109,0.98));
}
.feature-strip {
  margin-top: 28px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}
.feature-strip article {
  padding: 28px;
  border-radius: 28px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  color: #fff;
}
.feature-strip h3,
.equipment-grid h3,
.news-list h3,
.env-grid h3,
.footer h3,
.guide-steps h3 { margin-bottom: 8px; }
.feature-strip p { color: rgba(255,255,255,0.82); }

.split-band {
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr);
  gap: 28px;
  align-items: start;
}
.equipment-grid,
.env-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}
.equipment-grid article,
.env-grid article {
  padding: 26px;
  border-radius: 24px;
  background: rgba(255,255,255,0.95);
  box-shadow: var(--shadow);
}
.equipment-grid b,
.env-grid b {
  width: 68px;
  height: 68px;
  display: grid;
  place-items: center;
  border-radius: 22px;
  margin-bottom: 16px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  font-size: 26px;
}
.equipment-grid p,
.env-grid p,
.footer p,
.footer li,
.guide-steps p,
.note-panel p { color: var(--muted); }

.news-section {
  background:
    linear-gradient(135deg, rgba(12,49,86,0.94), rgba(11,76,120,0.9)),
    url('https://images.unsplash.com/photo-1516549655169-df83a0774514?auto=format&fit=crop&w=1600&q=80') center / cover no-repeat;
}
.news-grid {
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr);
  gap: 28px;
}
.news-list { display: grid; gap: 18px; }
.news-list article {
  padding: 26px;
  border-radius: 24px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.14);
  backdrop-filter: blur(10px);
  color: #fff;
}
.news-list time {
  display: inline-block;
  margin-bottom: 10px;
  font-weight: 700;
  color: rgba(255,255,255,0.72);
}
.news-list p { color: rgba(255,255,255,0.84); }

.final-cta { padding-top: 44px; }
.cta-row {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: center;
  padding: 32px;
  border-radius: 30px;
  background: linear-gradient(135deg, rgba(255,255,255,0.96), rgba(235,244,255,0.96));
  box-shadow: var(--shadow);
}

.footer {
  padding: 0 0 34px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 30px;
  padding: 36px;
  border-radius: 30px;
  background: rgba(255,255,255,0.96);
  box-shadow: var(--shadow);
}
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 14px;
  margin-top: 16px;
}
.footer-links strong { width: 100%; color: var(--primary-deep); }
.footer-links a { color: #38587b; }

@media (max-width: 1100px) {
  .hero-content,
  .main-grid,
  .split-band,
  .news-grid,
  .footer-grid { grid-template-columns: 1fr; }
  .hero-stats,
  .feature-strip,
  .equipment-grid,
  .env-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 780px) {
  .hero { min-height: auto; }
  .hero-left h1 { font-size: 42px; }
  .hero-stats,
  .feature-strip,
  .equipment-grid,
  .env-grid,
  .booking-grid { grid-template-columns: 1fr; }
  .guide-steps article { grid-template-columns: 1fr; }
  .cta-row { flex-direction: column; align-items: flex-start; }
  .section-title h2 { font-size: 30px; }
  .large-panel, .small-panel, .footer-grid { padding: 24px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; animation: none !important; }
}