/* ============ 大龙游艇俱乐部 - 主样式表 ============ */
:root {
  --ocean-deep: #0a1f3a;
  --ocean-mid: #0d2d54;
  --ocean-light: #1e4976;
  --gold: #c9a961;
  --gold-bright: #e8c878;
  --cream: #f5f1e8;
  --white: #ffffff;
  --text-dark: #1a1a2e;
  --text-muted: #6b7280;
  --border-light: rgba(10,31,58,0.1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: "PingFang SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, "Helvetica Neue", sans-serif;
  background: var(--white);
  color: var(--text-dark);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 32px;
}

/* ============ Header ============ */
.header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 20px 0;
  background: rgba(10, 31, 58, 0.85);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(201, 169, 97, 0.15);
  transition: all 0.4s ease;
}
.header.scrolled { padding: 14px 0; background: rgba(10, 31, 58, 0.95); }
.header-inner { display: flex; align-items: center; justify-content: space-between; }
.logo { display: flex; align-items: center; gap: 12px; color: var(--white); }
.logo-mark {
  width: 44px; height: 44px;
  border: 1.5px solid var(--gold); border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: var(--gold); font-size: 22px; font-weight: 300;
}
.logo-text { display: flex; flex-direction: column; line-height: 1.2; }
.logo-cn { font-size: 17px; font-weight: 500; letter-spacing: 2px; }
.logo-en { font-size: 10px; color: var(--gold); letter-spacing: 3px; text-transform: uppercase; }

.nav { display: flex; gap: 40px; }
.nav a {
  color: rgba(255,255,255,0.85); font-size: 14px; letter-spacing: 1px;
  position: relative; padding: 4px 0; transition: color 0.3s;
}
.nav a:hover { color: var(--gold-bright); }
.nav a::after {
  content: ''; position: absolute; bottom: -4px; left: 0; right: 0;
  height: 1px; background: var(--gold);
  transform: scaleX(0); transition: transform 0.3s;
}
.nav a:hover::after,
.nav a.active::after { transform: scaleX(1); }
.nav a.active { color: var(--gold-bright); }

.btn-book-top {
  padding: 10px 24px; border: 1px solid var(--gold);
  color: var(--gold-bright); border-radius: 2px;
  font-size: 13px; letter-spacing: 2px; transition: all 0.3s;
}
.btn-book-top:hover { background: var(--gold); color: var(--ocean-deep); }

/* ============ Page Hero (子页面通用) ============ */
.page-hero {
  position: relative; height: 420px;
  background: linear-gradient(180deg, rgba(10,31,58,0.6), rgba(10,31,58,0.85)),
              url('../images/page-hero.jpg') center/cover no-repeat;
  display: flex; align-items: center; justify-content: center;
  color: var(--white); text-align: center;
  margin-top: 0;
}
.page-hero-content { padding-top: 80px; }
.page-hero h1 {
  font-size: clamp(36px, 5vw, 56px); font-weight: 300;
  letter-spacing: 6px; margin-bottom: 16px;
}
.page-hero .en {
  display: inline-block; color: var(--gold-bright);
  font-size: 13px; letter-spacing: 6px; text-transform: uppercase;
  margin-bottom: 24px;
}
.page-hero .en::before, .page-hero .en::after {
  content: ''; display: inline-block; width: 40px; height: 1px;
  background: var(--gold); vertical-align: middle; margin: 0 16px;
}
.breadcrumb {
  font-size: 13px; color: rgba(255,255,255,0.7); letter-spacing: 1px;
}
.breadcrumb a { color: rgba(255,255,255,0.7); }
.breadcrumb a:hover { color: var(--gold-bright); }
.breadcrumb span { margin: 0 10px; opacity: 0.5; }

/* ============ Hero (首页大图) ============ */
.hero {
  position: relative; height: 100vh; min-height: 720px; overflow: hidden;
  background: linear-gradient(180deg, rgba(10,31,58,0.45) 0%, rgba(10,31,58,0.7) 100%),
              url('https://images.unsplash.com/photo-1567899378494-47b22a2ae96a?w=1920&q=80') center/cover no-repeat;
  display: flex; align-items: center; color: var(--white);
}
.hero::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(10,31,58,0.55) 0%, transparent 60%);
}
.hero-content { position: relative; z-index: 2; max-width: 720px; }
.hero-tag {
  display: inline-flex; align-items: center; gap: 12px;
  color: var(--gold-bright); font-size: 13px; letter-spacing: 5px;
  text-transform: uppercase; margin-bottom: 24px;
}
.hero-tag::before { content: ''; width: 40px; height: 1px; background: var(--gold); }
.hero h1 {
  font-size: clamp(40px, 6vw, 72px); font-weight: 300; line-height: 1.15;
  margin-bottom: 28px; letter-spacing: 4px;
}
.hero h1 strong { color: var(--gold-bright); font-weight: 500; }
.hero-sub {
  font-size: 17px; line-height: 1.9; color: rgba(255,255,255,0.88);
  margin-bottom: 48px; max-width: 580px; letter-spacing: 1px;
}
.hero-cta { display: flex; gap: 20px; flex-wrap: wrap; }

.btn-primary, .btn-ghost {
  padding: 16px 38px; font-size: 14px; letter-spacing: 3px;
  cursor: pointer; transition: all 0.35s ease;
  display: inline-flex; align-items: center; gap: 10px;
  border: none; font-family: inherit;
}
.btn-primary { background: var(--gold); color: var(--ocean-deep); border: 1px solid var(--gold); }
.btn-primary:hover {
  background: var(--gold-bright); border-color: var(--gold-bright);
  transform: translateY(-2px); box-shadow: 0 12px 30px rgba(201,169,97,0.35);
}
.btn-ghost { background: transparent; color: var(--white); border: 1px solid rgba(255,255,255,0.4); }
.btn-ghost:hover { border-color: var(--white); background: rgba(255,255,255,0.08); }

.hero-scroll {
  position: absolute; bottom: 40px; left: 50%; transform: translateX(-50%);
  color: rgba(255,255,255,0.7); font-size: 11px;
  letter-spacing: 3px; text-transform: uppercase;
  display: flex; flex-direction: column; align-items: center; gap: 12px;
  animation: floatUp 2.4s ease-in-out infinite;
}
.hero-scroll::after { content: ''; width: 1px; height: 40px; background: linear-gradient(180deg, var(--gold), transparent); }
@keyframes floatUp { 0%,100%{transform:translate(-50%,0)} 50%{transform:translate(-50%,8px)} }

/* ============ Section ============ */
.section { padding: 120px 0; position: relative; }
.section-head { text-align: center; margin-bottom: 80px; }
.section-eyebrow {
  color: var(--gold); font-size: 12px; letter-spacing: 6px;
  text-transform: uppercase; margin-bottom: 18px; display: inline-block;
}
.section-title {
  font-size: clamp(32px, 4vw, 48px); font-weight: 300;
  color: var(--ocean-deep); letter-spacing: 3px; line-height: 1.3; margin-bottom: 20px;
}
.section-title strong { font-weight: 500; color: var(--ocean-mid); }
.section-desc { max-width: 640px; margin: 0 auto; color: var(--text-muted); font-size: 15px; }

/* ============ About ============ */
.about { background: var(--cream); position: relative; overflow: hidden; }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.about-img { position: relative; aspect-ratio: 4/5; overflow: hidden; }
.about-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 1s ease; }
.about-img:hover img { transform: scale(1.05); }
.about-img::before {
  content: ''; position: absolute; top: 20px; left: 20px; right: -20px; bottom: -20px;
  border: 1px solid var(--gold); z-index: -1;
}
.about-content .section-eyebrow,
.about-content .section-title { text-align: left; }
.about-content .section-title { margin-bottom: 32px; }
.about-text { color: #4a5568; font-size: 15.5px; line-height: 2; margin-bottom: 24px; }
.about-stats {
  display: grid; grid-template-columns: repeat(3,1fr); gap: 30px;
  margin-top: 48px; padding-top: 48px; border-top: 1px solid var(--border-light);
}
.stat-num { font-size: 42px; font-weight: 300; color: var(--ocean-deep); letter-spacing: 1px; }
.stat-num span { font-size: 16px; color: var(--gold); margin-left: 4px; }
.stat-label { font-size: 13px; color: var(--text-muted); letter-spacing: 2px; margin-top: 6px; }

/* ============ Fleet (游艇舰队) ============ */
.fleet { background: var(--white); }
.fleet-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 32px; }
.yacht-card {
  position: relative; overflow: hidden; cursor: pointer;
  background: var(--ocean-deep); aspect-ratio: 4/3; display: block;
}
.yacht-card img { width: 100%; height: 100%; object-fit: cover; transition: all 0.7s ease; opacity: 0.85; }
.yacht-card:hover img { transform: scale(1.06); opacity: 0.5; }
.yacht-overlay {
  position: absolute; inset: 0; padding: 36px;
  display: flex; flex-direction: column; justify-content: flex-end;
  color: var(--white);
  background: linear-gradient(180deg, transparent 40%, rgba(10,31,58,0.92) 100%);
  transition: background 0.5s;
}
.yacht-card:hover .yacht-overlay {
  background: linear-gradient(180deg, rgba(10,31,58,0.4) 0%, rgba(10,31,58,0.95) 100%);
}
.yacht-type {
  font-size: 11px; letter-spacing: 4px; color: var(--gold-bright);
  text-transform: uppercase; margin-bottom: 12px;
}
.yacht-name { font-size: 28px; font-weight: 400; letter-spacing: 2px; margin-bottom: 16px; }
.yacht-specs {
  display: flex; gap: 24px; font-size: 13px; color: rgba(255,255,255,0.85);
  padding-top: 16px; border-top: 1px solid rgba(255,255,255,0.2); flex-wrap: wrap;
}
.yacht-specs span strong { color: var(--gold-bright); font-weight: 500; margin-right: 6px; }

/* ============ Routes (出海路线) ============ */
.routes {
  background: linear-gradient(180deg, var(--ocean-deep) 0%, var(--ocean-mid) 100%);
  color: var(--white);
}
.routes .section-title { color: var(--white); }
.route-list { display: grid; grid-template-columns: repeat(2,1fr); gap: 24px; }
.route-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(201,169,97,0.2);
  padding: 40px 36px; transition: all 0.4s ease;
  position: relative; overflow: hidden; display: block; color: inherit;
}
.route-card::before {
  content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 2px;
  background: var(--gold); transform: scaleX(0); transform-origin: left;
  transition: transform 0.5s ease;
}
.route-card:hover {
  background: rgba(255,255,255,0.07); border-color: var(--gold); transform: translateY(-4px);
}
.route-card:hover::before { transform: scaleX(1); }
.route-head {
  display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 24px;
}
.route-name { font-size: 24px; font-weight: 400; letter-spacing: 2px; }
.route-tag {
  font-size: 11px; color: var(--gold-bright); letter-spacing: 3px;
  padding: 4px 10px; border: 1px solid var(--gold); border-radius: 2px;
}
.route-desc {
  color: rgba(255,255,255,0.7); font-size: 14px; line-height: 1.9;
  margin-bottom: 28px; min-height: 80px;
}
.route-meta {
  display: flex; gap: 24px; font-size: 13px; color: rgba(255,255,255,0.7);
  padding-bottom: 24px; border-bottom: 1px dashed rgba(255,255,255,0.15); margin-bottom: 24px;
  flex-wrap: wrap;
}
.route-meta span::before { content: '·'; color: var(--gold); margin-right: 8px; }
.route-price { display: flex; align-items: baseline; justify-content: space-between; }
.price-num { font-size: 32px; font-weight: 300; color: var(--gold-bright); }
.price-num small { font-size: 13px; color: rgba(255,255,255,0.6); margin-left: 4px; letter-spacing: 1px; }
.btn-route {
  color: var(--gold-bright); font-size: 13px; letter-spacing: 2px;
  border-bottom: 1px solid var(--gold); padding-bottom: 3px; transition: all 0.3s;
}
.btn-route:hover { color: var(--white); border-color: var(--white); }

/* ============ Process ============ */
.process { background: var(--white); }
.process-flow { display: grid; grid-template-columns: repeat(4,1fr); gap: 24px; margin-bottom: 100px; }
.process-step { text-align: center; position: relative; padding: 0 12px; }
.process-step:not(:last-child)::after {
  content: ''; position: absolute; top: 30px; right: -12px;
  width: 24px; height: 1px; background: var(--gold); opacity: 0.5;
}
.step-num {
  width: 60px; height: 60px; border: 1px solid var(--gold); border-radius: 50%;
  margin: 0 auto 28px; display: flex; align-items: center; justify-content: center;
  color: var(--gold); font-size: 22px; font-weight: 300; background: var(--white);
}
.step-title { font-size: 18px; font-weight: 500; color: var(--ocean-deep); margin-bottom: 12px; letter-spacing: 2px; }
.step-desc { font-size: 14px; color: var(--text-muted); line-height: 1.8; }

/* ============ Safety ============ */
.safety { background: var(--cream); padding-top: 100px; }
.safety-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 32px; }
.safety-card {
  text-align: center; padding: 40px 24px; background: var(--white);
  transition: all 0.4s; border: 1px solid transparent;
}
.safety-card:hover {
  transform: translateY(-6px); border-color: var(--gold);
  box-shadow: 0 20px 50px rgba(10,31,58,0.08);
}
.safety-icon {
  width: 64px; height: 64px; margin: 0 auto 24px;
  display: flex; align-items: center; justify-content: center; color: var(--gold);
}
.safety-icon svg { width: 100%; height: 100%; }
.safety-title { font-size: 17px; font-weight: 500; color: var(--ocean-deep); margin-bottom: 12px; letter-spacing: 1px; }
.safety-desc { font-size: 13.5px; color: var(--text-muted); line-height: 1.8; }

/* ============ Booking ============ */
.booking {
  background: linear-gradient(135deg, rgba(10,31,58,0.92), rgba(13,45,84,0.92)),
              url('https://images.unsplash.com/photo-1469474968028-56623f02e42e?w=1920&q=80') center/cover;
  color: var(--white);
}
.booking .section-title { color: var(--white); }
.booking .section-desc { color: rgba(255,255,255,0.7); }
.booking-wrap {
  max-width: 900px; margin: 0 auto;
  background: rgba(255,255,255,0.04); border: 1px solid rgba(201,169,97,0.25);
  padding: 60px; backdrop-filter: blur(20px);
}
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-bottom: 24px; }
.form-group { display: flex; flex-direction: column; }
.form-group.full { grid-column: span 2; }
.form-group label {
  font-size: 12px; letter-spacing: 3px; color: var(--gold-bright);
  margin-bottom: 10px; text-transform: uppercase;
}
.form-group input,
.form-group select,
.form-group textarea {
  background: transparent; border: none;
  border-bottom: 1px solid rgba(255,255,255,0.3);
  padding: 12px 0; color: var(--white); font-size: 15px;
  font-family: inherit; outline: none; transition: border-color 0.3s;
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: rgba(255,255,255,0.4); }
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus { border-color: var(--gold); }
.form-group select option { background: var(--ocean-deep); color: var(--white); }
.form-submit { text-align: center; margin-top: 40px; }

/* ============ Contact / Footer ============ */
.contact { background: var(--ocean-deep); color: var(--white); padding: 100px 0 60px; }
.contact-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 60px; margin-bottom: 80px; }
.contact-brand .logo { margin-bottom: 24px; }
.contact-brand p { font-size: 14px; color: rgba(255,255,255,0.6); line-height: 1.9; }
.contact-col h4 { font-size: 14px; color: var(--gold-bright); letter-spacing: 3px; margin-bottom: 24px; font-weight: 500; }
.contact-col ul { list-style: none; }
.contact-col li { font-size: 14px; color: rgba(255,255,255,0.7); margin-bottom: 14px; line-height: 1.7; }
.contact-col li strong { color: var(--white); font-weight: 400; display: block; font-size: 18px; letter-spacing: 1px; }
.contact-col a:hover { color: var(--gold-bright); }
.footer-bottom {
  padding-top: 30px; border-top: 1px solid rgba(255,255,255,0.1);
  display: flex; justify-content: space-between;
  font-size: 12px; color: rgba(255,255,255,0.4); letter-spacing: 1px;
}
.footer-bottom a { color: rgba(255,255,255,0.4); }
.footer-bottom a:hover { color: var(--gold-bright); }

/* ============ 内页通用：子页面正文 ============ */
.page-body { padding: 100px 0; background: var(--white); }
.page-content {
  max-width: 880px; margin: 0 auto;
  font-size: 16px; line-height: 2; color: #2d3748;
}
.page-content h2 { font-size: 28px; color: var(--ocean-deep); margin: 40px 0 20px; letter-spacing: 2px; font-weight: 500; }
.page-content h3 { font-size: 22px; color: var(--ocean-mid); margin: 30px 0 16px; letter-spacing: 1px; }
.page-content p { margin-bottom: 20px; }
.page-content img { margin: 30px auto; border-radius: 4px; }
.page-content ul,
.page-content ol { margin: 20px 0 20px 30px; }
.page-content li { margin-bottom: 8px; }
.page-content a { color: var(--gold); border-bottom: 1px dashed var(--gold); }

/* ============ 列表页通用 ============ */
.listing { padding: 100px 0; background: var(--cream); }
.listing-grid { display: grid; gap: 32px; }
.listing-grid.fleet-style { grid-template-columns: repeat(2,1fr); }
.listing-grid.routes-style { grid-template-columns: repeat(2,1fr); }

.list-card-fleet {
  display: block; background: var(--ocean-deep); color: var(--white);
  aspect-ratio: 4/3; position: relative; overflow: hidden;
}
.list-card-fleet img { width: 100%; height: 100%; object-fit: cover; opacity: 0.85; transition: all 0.7s; }
.list-card-fleet:hover img { transform: scale(1.06); opacity: 0.5; }
.list-card-fleet .info {
  position: absolute; inset: 0; padding: 36px;
  display: flex; flex-direction: column; justify-content: flex-end;
  background: linear-gradient(180deg, transparent 40%, rgba(10,31,58,0.92) 100%);
}
.list-card-fleet h3 { font-size: 26px; font-weight: 400; letter-spacing: 2px; margin-bottom: 8px; }
.list-card-fleet .desc { font-size: 13px; color: rgba(255,255,255,0.75); }

.list-card-route {
  display: block; background: var(--white); padding: 40px 36px;
  border: 1px solid var(--border-light); color: var(--text-dark);
  transition: all 0.4s;
}
.list-card-route:hover { border-color: var(--gold); transform: translateY(-4px); box-shadow: 0 20px 40px rgba(10,31,58,0.06); }
.list-card-route h3 { font-size: 24px; color: var(--ocean-deep); margin-bottom: 16px; letter-spacing: 2px; }
.list-card-route .desc { color: var(--text-muted); margin-bottom: 24px; min-height: 60px; }
.list-card-route .meta { display: flex; gap: 20px; color: var(--text-muted); font-size: 13px; }

/* 分页 */
.pager { text-align: center; margin-top: 60px; }
.pager a, .pager span {
  display: inline-block; padding: 10px 16px; margin: 0 4px;
  border: 1px solid var(--border-light); color: var(--ocean-deep);
  font-size: 13px; transition: all 0.3s;
}
.pager a:hover, .pager .current {
  background: var(--gold); color: var(--white); border-color: var(--gold);
}

/* ============ Detail Page ============ */
.detail-page { padding: 80px 0; background: var(--white); }
.detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: start; }
.detail-cover { aspect-ratio: 4/3; overflow: hidden; background: var(--cream); }
.detail-cover img { width: 100%; height: 100%; object-fit: cover; }
.detail-title { font-size: 36px; font-weight: 400; color: var(--ocean-deep); letter-spacing: 2px; margin-bottom: 20px; }
.detail-meta {
  font-size: 13px; color: var(--text-muted); letter-spacing: 1px;
  padding-bottom: 24px; margin-bottom: 32px;
  border-bottom: 1px solid var(--border-light);
}
.detail-content { font-size: 15.5px; line-height: 2; color: #2d3748; }
.detail-content p { margin-bottom: 18px; }
.detail-cta { margin-top: 40px; }

/* ============ Booking page ============ */
.booking-page {
  background: linear-gradient(135deg, rgba(10,31,58,0.92), rgba(13,45,84,0.92)),
              url('https://images.unsplash.com/photo-1469474968028-56623f02e42e?w=1920&q=80') center/cover;
  padding: 140px 0 100px; color: var(--white);
}

/* ============ Responsive ============ */
@media (max-width: 968px) {
  .container { padding: 0 24px; }
  .nav { display: none; }
  .section, .listing, .page-body { padding: 80px 0; }
  .section-head { margin-bottom: 60px; }
  .about-grid, .fleet-grid, .route-list,
  .listing-grid.fleet-style, .listing-grid.routes-style,
  .detail-grid, .form-grid { grid-template-columns: 1fr; gap: 40px; }
  .process-flow { grid-template-columns: repeat(2,1fr); gap: 40px; }
  .process-step::after { display: none; }
  .safety-grid { grid-template-columns: repeat(2,1fr); }
  .contact-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
  .booking-wrap { padding: 40px 24px; }
  .form-group.full { grid-column: span 1; }
  .hero h1 { letter-spacing: 2px; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
}
@media (max-width: 560px) {
  .safety-grid, .contact-grid { grid-template-columns: 1fr; }
  .about-stats { grid-template-columns: repeat(3,1fr); gap: 12px; }
  .stat-num { font-size: 32px; }
  .hero-cta { flex-direction: column; align-items: stretch; }
  .btn-primary, .btn-ghost { justify-content: center; }
}

/* Reveal animation */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.9s ease, transform 0.9s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }