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

body {
  font-family: "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  color: #1e293b;
  line-height: 1.6;
  background: #f8fafc;
}

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

.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}

.logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: #0c4a6e;
}

.nav {
  display: flex;
  gap: 24px;
  font-size: 0.9rem;
}

.nav a:hover {
  color: #0284c7;
}

/* Hero */
.hero {
  position: relative;
  min-height: 88vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, #0c4a6e 0%, #0369a1 40%, #0ea5e9 100%);
  color: #fff;
  padding-top: 60px;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  opacity: 0.6;
}

.hero-content {
  position: relative;
  z-index: 1;
  padding: 80px 20px;
}

.hero-tag {
  font-size: 0.85rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  opacity: 0.85;
  margin-bottom: 12px;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 16px;
}

.hero-desc {
  max-width: 520px;
  font-size: 1.05rem;
  opacity: 0.92;
  margin-bottom: 28px;
}

.btn-primary {
  display: inline-block;
  padding: 12px 28px;
  background: #fff;
  color: #0c4a6e;
  font-weight: 600;
  border-radius: 8px;
  transition: transform 0.2s, box-shadow 0.2s;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

/* Sections */
.section {
  padding: 72px 0;
}

.section-alt {
  background: #fff;
}

.section-title {
  font-size: 1.75rem;
  color: #0c4a6e;
  margin-bottom: 8px;
}

.section-sub {
  color: #64748b;
  margin-bottom: 36px;
}

/* Cards */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.card {
  background: #fff;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(15, 23, 42, 0.08);
  transition: transform 0.2s;
}

.section-alt .card {
  box-shadow: 0 2px 12px rgba(15, 23, 42, 0.06);
}

.card:hover {
  transform: translateY(-4px);
}

.card-img {
  height: 160px;
  background-size: cover;
  background-position: center;
}

.card-img-japan {
  background-image: linear-gradient(160deg, #fda4af 0%, #fb7185 50%, #e11d48 100%);
}

.card-img-europe {
  background-image: linear-gradient(160deg, #93c5fd 0%, #3b82f6 50%, #1d4ed8 100%);
}

.card-img-sea {
  background-image: linear-gradient(160deg, #6ee7b7 0%, #14b8a6 50%, #0d9488 100%);
}

.card-body {
  padding: 20px;
}

.card-body h3 {
  font-size: 1.1rem;
  margin-bottom: 8px;
}

.card-body p {
  font-size: 0.9rem;
  color: #64748b;
}

/* Routes */
.route-list {
  list-style: none;
}

.route-list li {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  padding: 20px 0;
  border-bottom: 1px solid #e2e8f0;
}

.route-list li:last-child {
  border-bottom: none;
}

.route-days {
  flex-shrink: 0;
  padding: 4px 12px;
  background: #e0f2fe;
  color: #0369a1;
  font-size: 0.85rem;
  font-weight: 600;
  border-radius: 20px;
}

.route-list strong {
  display: block;
  margin-bottom: 4px;
}

.route-list p {
  font-size: 0.9rem;
  color: #64748b;
}

/* About */
.about-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 48px;
  align-items: center;
}

.about-text {
  color: #475569;
  max-width: 560px;
}

.stats {
  display: flex;
  gap: 32px;
}

.stats div {
  text-align: center;
}

.stats strong {
  display: block;
  font-size: 2rem;
  color: #0284c7;
}

.stats span {
  font-size: 0.85rem;
  color: #64748b;
}

/* Contact */
.contact-box {
  text-align: center;
}

.contact-box p {
  color: #475569;
  margin-bottom: 8px;
}

.contact-info {
  font-weight: 500;
  color: #0c4a6e;
}

/* Footer */
.site-footer {
  padding: 24px 0;
  background: #0f172a;
  color: #94a3b8;
  font-size: 0.8rem;
  text-align: center;
}

@media (max-width: 768px) {
  .nav {
    display: none;
  }

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

  .stats {
    justify-content: center;
  }
}