/* roulang page: index */
/* ===== 设计变量 ===== */
:root {
  --primary: #1e5d8f;
  --primary-dark: #143d5c;
  --primary-light: #eaf2f8;
  --accent: #c9a96a;
  --accent-dark: #b08e4d;
  --accent-soft: #faf6ee;
  --bg-main: #ffffff;
  --bg-soft: #f5f8fb;
  --bg-dark: #143d5c;
  --text-dark: #1a2b3c;
  --text-body: #4a5a6a;
  --text-muted: #7d8a96;
  --border: #e1e8f0;
  --radius-sm: 10px;
  --radius: 16px;
  --radius-lg: 24px;
  --shadow-xs: 0 2px 8px rgba(20,61,92,.05);
  --shadow-sm: 0 2px 12px rgba(20,61,92,.07);
  --shadow-md: 0 8px 32px rgba(20,61,92,.09);
  --shadow-lg: 0 20px 50px rgba(20,61,92,.13);
  --transition: all .3s ease;
}

/* ===== 基础 Reset ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-body);
  background: var(--bg-main);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary-dark); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
button, input, select, textarea { font-family: inherit; }

/* ===== 容器 ===== */
.container { max-width: 1200px; padding-left: 24px; padding-right: 24px; }

/* ===== 通用区块 ===== */
.section-padding { padding: 84px 0; }
.section-label {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .08em;
  padding: 6px 16px;
  border-radius: 50px;
  margin-bottom: 16px;
}
.section-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-dark);
  line-height: 1.3;
  margin-bottom: 12px;
}
.section-desc { font-size: 1rem; color: var(--text-muted); max-width: 640px; margin-bottom: 40px; }

/* ===== Bootstrap 重置 ===== */
.btn { border-radius: 10px; padding: 12px 28px; font-weight: 600; font-size: 15px; transition: var(--transition); border: 2px solid transparent; }
.btn:focus, .btn:focus-visible, .btn-check:focus+.btn { box-shadow: 0 0 0 4px rgba(30,93,143,.15); outline: none; }
.btn-primary { background: var(--primary); border-color: var(--primary); }
.btn-primary:hover, .btn-primary:focus { background: var(--primary-dark); border-color: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(30,93,143,.25); }
.btn-outline-light { border-color: rgba(255,255,255,.7); color: #fff; }
.btn-outline-light:hover { background: rgba(255,255,255,.1); border-color: #fff; color: #fff; transform: translateY(-2px); }
.btn-accent { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-accent:hover { background: var(--accent-dark); border-color: var(--accent-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(201,169,106,.3); }

/* ===== 导航 ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1030;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 10px rgba(20,61,92,.04);
}
.site-header .navbar { padding: 12px 0; }
.navbar-brand {
  font-size: 20px;
  font-weight: 800;
  color: var(--primary) !important;
  letter-spacing: -.02em;
  display: flex;
  align-items: center;
  gap: 4px;
  line-height: 1.2;
}
.navbar-brand small {
  display: block;
  font-size: 11px;
  font-weight: 400;
  color: var(--text-muted);
  letter-spacing: .1em;
}
.navbar-brand .brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  background: var(--primary);
  color: #fff;
  border-radius: 10px;
  font-size: 18px;
  margin-right: 10px;
  flex-shrink: 0;
}
.site-header .nav-link {
  font-weight: 500;
  color: var(--text-body);
  padding: 8px 16px !important;
  border-radius: 8px;
  transition: var(--transition);
}
.site-header .nav-link:hover { color: var(--primary); background: var(--primary-light); }
.site-header .nav-link.active { color: var(--primary); background: var(--primary-light); font-weight: 600; }
.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 50px;
  padding: 5px 14px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
}
.lang-switch .active { color: var(--primary); font-weight: 700; }
.lang-switch .divider { color: #c5ccd4; }
.header-cta { margin-left: 14px; padding: 10px 20px; font-size: 14px; border-radius: 50px; }
.navbar-toggler { border: none; padding: 6px 10px; border-radius: 8px; }
.navbar-toggler:focus { box-shadow: none; }
.navbar-toggler-icon { background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%231e5d8f' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e"); }
@media (max-width: 991px) {
  .site-header .navbar-collapse { padding: 16px 0; }
  .site-header .nav-link { padding: 10px 6px !important; }
  .lang-switch { margin-top: 10px; }
  .header-cta { margin-left: 0; margin-top: 10px; }
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 640px;
  display: flex;
  align-items: center;
  background: var(--bg-dark);
  overflow: hidden;
  padding: 64px 0;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.jpg');
  background-size: cover;
  background-position: center;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(20,61,92,.94) 0%, rgba(20,61,92,.82) 45%, rgba(20,61,92,.45) 100%);
}
.hero-content { position: relative; z-index: 2; color: #fff; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,.14);
  border: 1px solid rgba(255,255,255,.25);
  color: #f5e7c8;
  font-size: 13px;
  font-weight: 600;
  padding: 8px 18px;
  border-radius: 50px;
  margin-bottom: 20px;
  backdrop-filter: blur(6px);
  letter-spacing: .04em;
}
.hero h1 {
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1.28;
  color: #fff;
  letter-spacing: -.02em;
  margin-bottom: 20px;
  max-width: 720px;
}
.hero-sub {
  font-size: 17px;
  line-height: 1.8;
  color: rgba(255,255,255,.88);
  max-width: 620px;
  margin-bottom: 30px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }
.hero-actions .btn { min-width: 150px; }
.hero-metrics {
  display: flex;
  gap: 28px;
  margin-top: 36px;
  flex-wrap: wrap;
}
.hero-metrics .metric { border-left: 2px solid rgba(255,255,255,.3); padding-left: 14px; }
.hero-metrics .metric-value { font-size: 22px; font-weight: 800; color: #fff; }
.hero-metrics .metric-label { font-size: 13px; color: rgba(255,255,255,.75); }
/* 倒计时卡片 */
.countdown-card {
  background: rgba(255,255,255,.1);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,.25);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  color: #fff;
  box-shadow: 0 20px 50px rgba(0,0,0,.25);
  max-width: 400px;
  margin-left: auto;
}
.countdown-card .cd-label {
  font-size: 14px;
  color: rgba(255,255,255,.85);
  letter-spacing: .08em;
  text-transform: uppercase;
  margin-bottom: 6px;
}
.countdown-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 20px; }
.countdown-timer {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin-bottom: 22px;
}
.countdown-timer .cd-item {
  background: rgba(255,255,255,.14);
  border-radius: 12px;
  padding: 14px 4px;
  text-align: center;
}
.countdown-timer .cd-num {
  display: block;
  font-size: 30px;
  font-weight: 800;
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
  color: #fff;
}
.countdown-timer .cd-unit { font-size: 12px; color: rgba(255,255,255,.7); margin-top: 4px; display: block; }
.countdown-card .cd-note { font-size: 13px; color: rgba(255,255,255,.7); margin-bottom: 18px; }
.btn-remind { width: 100%; background: var(--accent); color: #fff; border: none; padding: 13px 20px; border-radius: 12px; font-weight: 600; transition: var(--transition); }
.btn-remind:hover { background: var(--accent-dark); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(201,169,106,.35); }
@media (max-width: 767px) {
  .hero { padding: 60px 0 72px; min-height: auto; }
  .hero h1 { font-size: 1.75rem; }
  .hero-sub { font-size: 15px; }
  .countdown-card { margin-left: 0; margin-top: 32px; max-width: 100%; padding: 24px 20px; }
  .countdown-timer .cd-num { font-size: 24px; }
}

/* ===== 核心卖点 ===== */
.features { background: var(--bg-main); }
.feature-card {
  background: var(--bg-main);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 24px;
  transition: var(--transition);
  height: 100%;
  position: relative;
  overflow: hidden;
}
.feature-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  opacity: 0;
  transition: var(--transition);
}
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
.feature-card:hover::before { opacity: 1; }
.feature-icon {
  width: 56px; height: 56px;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  font-size: 22px;
  margin-bottom: 20px;
  transition: var(--transition);
}
.feature-card:hover .feature-icon { background: var(--primary); color: #fff; transform: rotate(-6deg) scale(1.05); }
.feature-card h3 { font-size: 18px; font-weight: 700; color: var(--text-dark); margin-bottom: 10px; }
.feature-card p { font-size: 14px; line-height: 1.7; color: var(--text-muted); margin-bottom: 0; }

/* ===== 数据指标 ===== */
.stats-section {
  background: linear-gradient(120deg, #143d5c 0%, #1e5d8f 100%);
  padding: 70px 0;
  position: relative;
  overflow: hidden;
}
.stats-section::before {
  content: '';
  position: absolute;
  width: 300px; height: 300px;
  border-radius: 50%;
  background: rgba(255,255,255,.04);
  top: -100px; right: -80px;
}
.stat-item { text-align: center; color: #fff; padding: 20px 10px; }
.stat-item .stat-number { font-size: 2.8rem; font-weight: 800; line-height: 1.1; letter-spacing: -.02em; }
.stat-item .stat-number small { font-size: 1.4rem; font-weight: 400; opacity: .7; margin-left: 4px; }
.stat-item .stat-label { font-size: 14px; color: rgba(255,255,255,.78); margin-top: 8px; }
.stat-item .stat-underline { width: 30px; height: 3px; background: var(--accent); margin: 12px auto; border-radius: 3px; }
@media (max-width: 767px) {
  .stat-item .stat-number { font-size: 2rem; }
  .stats-section { padding: 48px 0; }
}

/* ===== 服务范围 ===== */
.services { background: var(--bg-soft); }
.service-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: none;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  background: #fff;
  height: 100%;
  position: relative;
}
.service-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.service-card .service-img { height: 220px; background-size: cover; background-position: center; position: relative; }
.service-card .service-img::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 30%, rgba(20,61,92,.45) 100%); }
.service-card .service-body { padding: 26px 24px; }
.service-card .service-body h3 { font-size: 17px; font-weight: 700; color: var(--text-dark); margin-bottom: 8px; }
.service-card .service-body p { font-size: 14px; color: var(--text-muted); margin-bottom: 14px; line-height: 1.65; }
.service-card .service-body .service-tag { font-size: 12px; font-weight: 600; color: var(--primary); background: var(--primary-light); padding: 4px 12px; border-radius: 50px; display: inline-block; }

/* ===== 流程步骤 ===== */
.steps-section { background: var(--bg-main); }
.step-item { position: relative; text-align: left; padding: 0 15px; }
.step-item .step-number {
  width: 52px; height: 52px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 18px; font-weight: 800;
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 18px;
  border: 2px solid #fff;
  box-shadow: var(--shadow-sm);
}
.step-item h3 { font-size: 16px; font-weight: 700; color: var(--text-dark); margin-bottom: 8px; }
.step-item p { font-size: 14px; color: var(--text-muted); line-height: 1.6; margin-bottom: 0; }
.step-line {
  position: absolute;
  top: 26px;
  left: calc(50% + 40px);
  right: calc(-50% + 40px);
  height: 2px;
  background: var(--border);
  content: '';
}
@media (max-width: 767px) {
  .step-line { display: none; }
  .step-item { padding: 0 0 24px; }
}

/* ===== 资讯区 ===== */
.news-section { background: var(--bg-soft); }
.news-list-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}
.news-list-item:last-child { border-bottom: none; }
.news-list-item:hover { padding-left: 8px; }
.news-date {
  flex-shrink: 0;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 13px;
  font-weight: 700;
  padding: 6px 12px;
  border-radius: 8px;
  letter-spacing: .04em;
}
.news-list-item a {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-dark);
  line-height: 1.6;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex: 1;
}
.news-list-item a:hover { color: var(--primary); }
.news-list-item a i { font-size: 13px; color: var(--text-muted); flex-shrink: 0; }
.news-aside {
  background: #fff;
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
}
.news-aside h3 { font-size: 17px; font-weight: 700; color: var(--text-dark); margin-bottom: 18px; padding-bottom: 14px; border-bottom: 2px solid var(--primary-light); }
.news-aside .trend-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 0;
  border-bottom: 1px dashed var(--border);
  font-size: 14px;
  color: var(--text-body);
  transition: var(--transition);
}
.news-aside .trend-item:last-child { border-bottom: none; }
.news-aside .trend-item:hover { color: var(--primary); padding-left: 6px; }
.news-aside .trend-item i { color: var(--accent); font-size: 13px; }
.news-aside .trend-item .trend-rank { font-weight: 700; color: var(--primary); width: 18px; }

/* ===== 用户评价 ===== */
.testimonials { background: var(--bg-main); }
.testimonial-card {
  background: var(--bg-main);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px;
  height: 100%;
  transition: var(--transition);
  box-shadow: var(--shadow-xs);
}
.testimonial-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
.testimonial-card .stars { color: #e8a33d; font-size: 14px; margin-bottom: 14px; letter-spacing: 2px; }
.testimonial-card .quote { font-size: 15px; color: var(--text-body); line-height: 1.75; margin-bottom: 20px; font-style: italic; }
.testimonial-card .author {
  display: flex; align-items: center; gap: 12px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}
.author-avatar {
  width: 42px; height: 42px;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 15px; font-weight: 700;
}
.author-name { font-size: 14px; font-weight: 700; color: var(--text-dark); }
.author-meta { font-size: 12px; color: var(--text-muted); }

/* ===== 预约 CTA ===== */
.booking {
  position: relative;
  background: url('/assets/images/backpic/back-3.jpg') center/cover no-repeat;
  padding: 90px 0;
}
.booking .overlay {
  position: absolute; inset: 0;
  background: rgba(20,61,92,.88);
}
.booking .container { position: relative; z-index: 2; }
.booking-content { color: #fff; padding-right: 40px; }
.booking-content .section-label { background: rgba(255,255,255,.15); color: #f5e7c8; }
.booking-content h2 { color: #fff; font-size: 2rem; font-weight: 800; margin-bottom: 16px; }
.booking-content p { color: rgba(255,255,255,.85); font-size: 16px; line-height: 1.8; }
.booking-content .booking-points { margin-top: 24px; }
.booking-content .booking-points li { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; color: rgba(255,255,255,.9); }
.booking-content .booking-points li i { color: var(--accent); }
.booking-form-wrap {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-lg);
}
.booking-form-wrap h3 { font-size: 20px; font-weight: 700; color: var(--text-dark); margin-bottom: 4px; }
.booking-form-wrap .form-note { font-size: 13px; color: var(--text-muted); margin-bottom: 20px; }
.booking-form-wrap .form-control, .booking-form-wrap .form-select {
  border-radius: 10px;
  padding: 12px 14px;
  border: 1px solid var(--border);
  font-size: 14px;
  transition: var(--transition);
}
.booking-form-wrap .form-control:focus, .booking-form-wrap .form-select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(30,93,143,.1);
}
.booking-form-wrap .form-label { font-size: 13px; font-weight: 600; color: var(--text-dark); margin-bottom: 6px; }
.success-message {
  background: #f0f9f0;
  border: 1px solid #b8e0b8;
  color: #2d7a2d;
  padding: 20px;
  border-radius: 12px;
  font-size: 15px;
  text-align: center;
  margin-top: 20px;
}
.success-message i { font-size: 36px; margin-bottom: 10px; display: block; color: #4caf50; }

/* ===== FAQ ===== */
.faq-section { background: var(--bg-soft); }
.faq-wrap { max-width: 800px; margin: 0 auto; }
.faq-card {
  background: #fff;
  border-radius: var(--radius);
  margin-bottom: 12px;
  box-shadow: var(--shadow-xs);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: var(--transition);
}
.faq-card:hover { box-shadow: var(--shadow-sm); }
.faq-card .faq-q {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  cursor: pointer;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-dark);
  user-select: none;
}
.faq-card .faq-q i { color: var(--primary); transition: var(--transition); }
.faq-card .faq-a {
  padding: 0 24px;
  max-height: 0;
  overflow: hidden;
  transition: max-height .4s ease, padding .3s ease;
  font-size: 14px;
  color: var(--text-body);
  line-height: 1.75;
}
.faq-card.active .faq-a { max-height: 300px; padding: 0 24px 20px; }
.faq-card.active .faq-q i { transform: rotate(180deg); }

/* ===== CTA 底部横幅 ===== */
.cta-banner {
  background: var(--primary);
  padding: 48px 0;
  text-align: center;
  color: #fff;
}
.cta-banner h2 { font-size: 24px; font-weight: 700; margin-bottom: 10px; }
.cta-banner p { color: rgba(255,255,255,.85); margin-bottom: 20px; }

/* ===== 页脚 ===== */
.site-footer {
  background: #12283a;
  color: rgba(255,255,255,.75);
  padding: 64px 0 0;
}
.site-footer h4 {
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 18px;
  letter-spacing: .04em;
}
.site-footer .footer-brand { font-size: 18px; font-weight: 800; color: #fff; margin-bottom: 14px; display: flex; align-items: center; gap: 10px; }
.site-footer .footer-brand .brand-mark { width: 36px; height: 36px; background: var(--primary); border-radius: 10px; display: flex; align-items: center; justify-content: center; font-size: 16px; }
.site-footer p { font-size: 14px; line-height: 1.7; color: rgba(255,255,255,.6); }
.site-footer .footer-links a { display: block; color: rgba(255,255,255,.65); font-size: 14px; padding: 4px 0; transition: var(--transition); }
.site-footer .footer-links a:hover { color: var(--accent); padding-left: 6px; }
.site-footer .footer-contact li { display: flex; gap: 10px; align-items: center; font-size: 14px; margin-bottom: 10px; color: rgba(255,255,255,.6); }
.site-footer .footer-contact li i { color: var(--accent); width: 20px; text-align: center; }
.site-footer .footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  margin-top: 48px;
  padding: 20px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255,255,255,.4);
}
.site-footer .footer-bottom a { color: rgba(255,255,255,.5); }

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .section-padding { padding: 64px 0; }
  .section-title { font-size: 1.7rem; }
  .hero h1 { font-size: 2.1rem; }
  .countdown-card { max-width: 100%; }
}
@media (max-width: 768px) {
  .section-padding { padding: 52px 0; }
  .container { padding-left: 20px; padding-right: 20px; }
  .section-title { font-size: 1.5rem; }
  .hero { padding: 48px 0 56px; }
  .hero h1 { font-size: 1.5rem; }
  .hero-metrics { gap: 16px; }
  .hero-metrics .metric-value { font-size: 18px; }
  .booking-content { padding-right: 0; margin-bottom: 30px; }
  .booking-form-wrap { padding: 24px; }
  .news-aside { margin-top: 28px; }
  .footer-brand { font-size: 16px; }
}
@media (max-width: 520px) {
  body { font-size: 15px; }
  .hero-actions .btn { width: 100%; }
  .countdown-timer { gap: 6px; }
  .countdown-timer .cd-item { padding: 10px 2px; }
  .navbar-brand { font-size: 17px; }
  .navbar-brand .brand-mark { width: 32px; height: 32px; font-size: 15px; margin-right: 8px; }
  .section-title { font-size: 1.35rem; }
}

/* roulang page: category1 */
:root {
  --primary: #1e5d8f;
  --primary-dark: #143d5c;
  --primary-light: #eaf2f8;
  --accent: #c9a96a;
  --accent-dark: #b08e4d;
  --accent-soft: #faf6ee;
  --bg-main: #ffffff;
  --bg-soft: #f5f8fb;
  --bg-dark: #143d5c;
  --text-dark: #1a2b3c;
  --text-body: #4a5a6a;
  --text-muted: #7d8a96;
  --border: #e1e8f0;
  --radius-sm: 10px;
  --radius: 16px;
  --radius-lg: 24px;
  --shadow-xs: 0 2px 8px rgba(20,61,92,.05);
  --shadow-sm: 0 2px 12px rgba(20,61,92,.07);
  --shadow-md: 0 8px 32px rgba(20,61,92,.09);
  --shadow-lg: 0 20px 50px rgba(20,61,92,.13);
  --transition: all .3s ease;
}
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-body);
  background: var(--bg-main);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary-dark); }
img { max-width: 100%; height: auto; display: block; }
button, input, select, textarea { font-family: inherit; }
.container { max-width: 1200px; padding-left: 24px; padding-right: 24px; }
.section-padding { padding: 84px 0; }
.section-label {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .08em;
  padding: 6px 16px;
  border-radius: 50px;
  margin-bottom: 14px;
}
.section-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-dark);
  line-height: 1.3;
  margin-bottom: 12px;
}
.section-desc { font-size: 1rem; color: var(--text-muted); max-width: 640px; margin-bottom: 40px; }
.section-heading { text-align: center; margin-bottom: 48px; }
.section-heading .section-desc { margin-left: auto; margin-right: auto; }

.btn {
  border-radius: 10px;
  padding: 12px 28px;
  font-weight: 600;
  font-size: 15px;
  transition: var(--transition);
  border: 2px solid transparent;
}
.btn:focus, .btn:focus-visible, .btn-check:focus + .btn { box-shadow: 0 0 0 4px rgba(30,93,143,.15); outline: none; }
.btn-primary { background: var(--primary); border-color: var(--primary); }
.btn-primary:hover, .btn-primary:focus { background: var(--primary-dark); border-color: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(30,93,143,.25); }
.btn-outline-light { border-color: rgba(255,255,255,.7); color: #fff; }
.btn-outline-light:hover { background: rgba(255,255,255,.1); border-color: #fff; color: #fff; transform: translateY(-2px); }
.btn-accent { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-accent:hover { background: var(--accent-dark); border-color: var(--accent-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(201,169,106,.3); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 1030;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 10px rgba(20,61,92,.04);
}
.site-header .navbar { padding: 12px 0; }
.navbar-brand {
  font-size: 20px;
  font-weight: 800;
  color: var(--primary) !important;
  letter-spacing: -.02em;
  display: flex;
  align-items: center;
  gap: 4px;
  line-height: 1.2;
}
.navbar-brand small {
  display: block;
  font-size: 11px;
  font-weight: 400;
  color: var(--text-muted);
  letter-spacing: .1em;
}
.navbar-brand .brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  background: var(--primary);
  color: #fff;
  border-radius: 10px;
  font-size: 18px;
  margin-right: 10px;
  flex-shrink: 0;
}
.site-header .nav-link {
  font-weight: 500;
  color: var(--text-body);
  padding: 8px 16px !important;
  border-radius: 8px;
  transition: var(--transition);
}
.site-header .nav-link:hover { color: var(--primary); background: var(--primary-light); }
.site-header .nav-link.active { color: var(--primary); background: var(--primary-light); font-weight: 600; }
.lang-switch .divider { color: #c5ccd4; }
.lang-switch { display: inline-flex; align-items: center; gap: 6px; font-size: 14px; font-weight: 500; }
.lang-switch .active { color: var(--primary); font-weight: 600; }
.lang-switch span { cursor: default; }
.header-cta { margin-left: 14px; padding: 10px 20px; font-size: 14px; border-radius: 50px; }
.navbar-toggler { border: none; padding: 6px 10px; border-radius: 8px; }
.navbar-toggler:focus { box-shadow: none; }
.navbar-toggler-icon { background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%231e5d8f' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e"); }
.site-header .navbar-collapse { padding: 16px 0; }
.site-header .nav-link { padding: 10px 6px !important; }
.header-cta { margin-left: 0; margin-top: 10px; }

.page-hero {
  position: relative;
  padding: 110px 0 130px;
  background-image: url('/assets/images/backpic/back-2.webp');
  background-size: cover;
  background-position: center;
  color: #fff;
}
.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, rgba(20,61,92,.96) 0%, rgba(20,61,92,.82) 55%, rgba(20,61,92,.45) 100%);
}
.page-hero .container { position: relative; z-index: 2; }
.page-hero .hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,.16);
  border: 1px solid rgba(255,255,255,.28);
  color: #f5e7c8;
  font-size: 13px;
  font-weight: 600;
  padding: 7px 18px;
  border-radius: 50px;
  margin-bottom: 20px;
  backdrop-filter: blur(6px);
  letter-spacing: .05em;
}
.page-hero h1 {
  font-size: 2.6rem;
  font-weight: 800;
  line-height: 1.25;
  color: #fff;
  letter-spacing: -.02em;
  margin-bottom: 18px;
  max-width: 680px;
}
.page-hero .hero-sub {
  font-size: 16px;
  line-height: 1.85;
  color: rgba(255,255,255,.9);
  max-width: 600px;
  margin-bottom: 28px;
}
.page-hero .hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }
.page-hero .hero-actions .btn { min-width: 150px; }
.page-hero .hero-trust {
  display: flex;
  flex-wrap: wrap;
  gap: 22px;
  margin-top: 34px;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,.22);
}
.page-hero .hero-trust span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: rgba(255,255,255,.85);
}
.page-hero .hero-trust i { color: #f5e7c8; }

.metrics-section { padding-bottom: 0; position: relative; z-index: 3; }
.metrics-panel {
  background: var(--bg-main);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  margin-top: -70px;
  padding: 36px 40px;
  border: 1px solid var(--border);
}
.metric-item { text-align: center; padding: 16px 12px; }
.metric-item .metric-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 12px;
  font-size: 20px;
  margin-bottom: 12px;
}
.metric-item .metric-value {
  font-size: 30px;
  font-weight: 800;
  color: var(--text-dark);
  line-height: 1.2;
}
.metric-item .metric-value small { font-size: 16px; font-weight: 600; color: var(--primary); }
.metric-item .metric-label { font-size: 14px; color: var(--text-muted); margin-top: 4px; }

.service-section { background: var(--bg-soft); }
.service-card {
  background: var(--bg-main);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-xs);
  transition: var(--transition);
  height: 100%;
}
.service-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: rgba(30,93,143,.15); }
.service-card .card-img { position: relative; overflow: hidden; }
.service-card .card-img img { width: 100%; height: 200px; object-fit: cover; transition: transform .5s ease; }
.service-card:hover .card-img img { transform: scale(1.05); }
.service-card .card-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(20,61,92,.55) 100%);
}
.service-card .card-img .corner-tag {
  position: absolute;
  top: 16px;
  left: 16px;
  z-index: 2;
  background: var(--accent);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 50px;
}
.service-card .card-body { padding: 26px; }
.service-card .card-body h3 { font-size: 19px; font-weight: 700; color: var(--text-dark); margin-bottom: 10px; }
.service-card .card-body p { font-size: 14px; line-height: 1.7; color: var(--text-muted); margin-bottom: 14px; }
.service-card .card-body .service-points { list-style: none; padding: 0; margin: 0 0 18px; }
.service-card .card-body .service-points li {
  font-size: 13px;
  color: var(--text-body);
  padding: 3px 0;
  display: flex;
  align-items: center;
  gap: 8px;
}
.service-card .card-body .service-points i { color: var(--primary); font-size: 12px; }

.process-section { background: var(--bg-dark); color: #fff; }
.process-section .section-title { color: #fff; }
.process-section .section-desc { color: rgba(255,255,255,.7); }
.process-section .section-label { background: rgba(255,255,255,.15); color: #f5e7c8; }
.process-step {
  text-align: center;
  padding: 30px 20px;
  position: relative;
}
.process-step .step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.3);
  color: #f5e7c8;
  font-size: 20px;
  font-weight: 700;
  border-radius: 50%;
  margin-bottom: 18px;
}
.process-step h3 { font-size: 18px; font-weight: 700; color: #fff; margin-bottom: 8px; }
.process-step p { font-size: 14px; line-height: 1.7; color: rgba(255,255,255,.7); margin: 0; }
.process-arrow {
  position: absolute;
  top: 50%;
  right: -12px;
  transform: translateY(-50%);
  color: rgba(255,255,255,.35);
  font-size: 18px;
  z-index: 2;
}
@media (max-width: 991px) {
  .process-arrow { display: none; }
}

.compare-section { background: var(--bg-soft); }
.compare-card {
  background: var(--bg-main);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  padding: 36px;
  height: 100%;
  transition: var(--transition);
}
.compare-card:hover { box-shadow: var(--shadow-md); }
.compare-card.compare-fail { border-top: 4px solid #c9a96a; }
.compare-card.compare-win { border-top: 4px solid var(--primary); }
.compare-card .compare-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.compare-card .compare-title i { font-size: 20px; }
.compare-fail .compare-title i { color: var(--accent); }
.compare-win .compare-title i { color: var(--primary); }
.compare-list { list-style: none; padding: 0; margin: 0; }
.compare-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 9px 0;
  font-size: 15px;
  color: var(--text-body);
  border-bottom: 1px dashed var(--border);
}
.compare-list li:last-child { border-bottom: none; }
.compare-list li .fa-xmark { color: #d18b8b; margin-top: 4px; font-size: 14px; }
.compare-list li .fa-check { color: #4c9f70; margin-top: 4px; font-size: 14px; }

.faq-section { background: var(--bg-main); }
.faq-section .accordion-item {
  border: 1px solid var(--border);
  border-radius: var(--radius) !important;
  margin-bottom: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-xs);
}
.faq-section .accordion-button {
  background: var(--bg-main);
  color: var(--text-dark);
  font-size: 16px;
  font-weight: 600;
  padding: 20px 24px;
  border: none;
  transition: var(--transition);
}
.faq-section .accordion-button:not(.collapsed) {
  background: var(--primary-light);
  color: var(--primary);
  box-shadow: none;
}
.faq-section .accordion-button:focus { box-shadow: 0 0 0 4px rgba(30,93,143,.12); border-color: var(--primary); }
.faq-section .accordion-button::after { background-size: 14px; }
.faq-section .accordion-body {
  padding: 20px 24px;
  color: var(--text-body);
  font-size: 15px;
  line-height: 1.8;
  border-top: 1px solid var(--border);
}

.booking-section {
  background: linear-gradient(160deg, var(--bg-soft) 0%, #edf4f9 100%);
}
.booking-wrapper {
  background: var(--bg-main);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
  overflow: hidden;
}
.booking-info {
  background: var(--bg-dark);
  color: #fff;
  padding: 48px;
  height: 100%;
}
.booking-info h3 { font-size: 26px; font-weight: 700; color: #fff; margin-bottom: 16px; }
.booking-info p { color: rgba(255,255,255,.78); font-size: 15px; line-height: 1.8; margin-bottom: 30px; }
.booking-info .contact-item {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 18px;
  font-size: 15px;
}
.booking-info .contact-item .contact-icon {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,.12);
  border-radius: 10px;
  color: #f5e7c8;
}
.booking-form { padding: 48px; }
.booking-form .form-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 6px;
}
.form-control, .form-select {
  border-radius: 10px;
  border: 1px solid var(--border);
  padding: 12px 16px;
  font-size: 15px;
  background-color: var(--bg-soft);
  transition: var(--transition);
  color: var(--text-dark);
}
.form-control:focus, .form-select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(30,93,143,.12);
  background-color: #fff;
}
.form-control::placeholder { color: #a5b0bd; }
.form-select {
  appearance: auto;
  -webkit-appearance: auto;
  -moz-appearance: auto;
}
.booking-form textarea.form-control { min-height: 100px; resize: vertical; }
.booking-success {
  background: #eaf7f0;
  border: 1px solid #bfe6d0;
  color: #2a7a57;
  border-radius: 10px;
  padding: 12px 18px;
  font-size: 14px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 10px;
}

.cta-strip {
  background: var(--accent-soft);
  border: 1px solid #eee2cf;
  border-radius: var(--radius-lg);
  padding: 36px 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
  margin-top: 70px;
}
.cta-strip h3 { font-size: 22px; font-weight: 700; color: var(--text-dark); margin: 0 0 6px; }
.cta-strip p { font-size: 15px; color: var(--text-muted); margin: 0; }

.site-footer {
  background: var(--bg-dark);
  color: rgba(255,255,255,.75);
  padding: 70px 0 0;
  margin-top: 0;
}
.site-footer .footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 20px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 16px;
}
.site-footer .footer-brand .brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  background: rgba(255,255,255,.15);
  color: #f5e7c8;
  border-radius: 10px;
  font-size: 18px;
  flex-shrink: 0;
}
.site-footer p { font-size: 14px; line-height: 1.7; color: rgba(255,255,255,.65); }
.site-footer h4 {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 18px;
  letter-spacing: .02em;
}
.site-footer .footer-links { display: flex; flex-direction: column; gap: 10px; }
.site-footer .footer-links a {
  color: rgba(255,255,255,.65);
  font-size: 14px;
  transition: var(--transition);
}
.site-footer .footer-links a:hover { color: #f5e7c8; padding-left: 4px; }
.site-footer .footer-contact { list-style: none; padding: 0; margin: 0; }
.site-footer .footer-contact li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: rgba(255,255,255,.65);
  margin-bottom: 12px;
}
.site-footer .footer-contact i { color: #f5e7c8; margin-top: 4px; width: 16px; text-align: center; }
.site-footer .footer-bottom {
  border-top: 1px solid rgba(255,255,255,.12);
  padding: 22px 0;
  margin-top: 48px;
}
.site-footer .footer-bottom p {
  font-size: 13px;
  color: rgba(255,255,255,.5);
  text-align: center;
  margin: 0;
}

@media (max-width: 991px) {
  .section-padding { padding: 70px 0; }
  .page-hero { padding: 90px 0 120px; }
  .page-hero h1 { font-size: 2rem; }
  .site-header .navbar-collapse { padding: 4px 0 16px; }
  .site-header .navbar-nav.mx-auto { width: 100%; margin-bottom: 8px !important; }
  .site-header .nav-link { padding: 10px 14px !important; }
  .header-actions { width: 100%; justify-content: space-between; margin-top: 8px; }
  .booking-info, .booking-form { padding: 36px; }
  .metrics-panel { padding: 24px 12px; }
  .metric-item { padding: 12px 8px; }
  .metric-item .metric-value { font-size: 24px; }
}
@media (max-width: 767px) {
  .section-padding { padding: 56px 0; }
  .section-title { font-size: 1.6rem; }
  .page-hero { padding: 72px 0 110px; }
  .page-hero h1 { font-size: 1.75rem; }
  .page-hero .hero-sub { font-size: 15px; }
  .page-hero .hero-actions .btn { width: 100%; }
  .metrics-panel { margin-top: -56px; }
  .metric-item { text-align: left; display: flex; align-items: center; gap: 14px; }
  .metric-item .metric-icon { margin-bottom: 0; width: 42px; height: 42px; flex-shrink: 0; }
  .metric-item .metric-value { font-size: 22px; }
  .metric-item .metric-label { font-size: 12px; }
  .compare-card { padding: 26px; }
  .cta-strip { padding: 28px 24px; }
  .booking-info, .booking-form { padding: 28px 24px; }
}
@media (max-width: 575px) {
  .section-title { font-size: 1.4rem; }
  .page-hero .hero-tag { font-size: 12px; }
  .page-hero h1 { font-size: 1.5rem; }
  .navbar-brand { font-size: 17px; }
  .navbar-brand .brand-mark { width: 34px; height: 34px; font-size: 16px; margin-right: 8px; }
  .service-card .card-img img { height: 180px; }
  .process-step { padding: 20px 10px; }
  .footer-contact li { font-size: 13px; }
}

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}