/* ============================================
   合美国旅 - 全局样式系统
   Design System: 深海蓝 + 珊瑚橙 + 沙滩米白 + 青绿
   ============================================ */

/* ---------- CSS 变量 ---------- */
:root {
  /* 主色 */
  --color-primary: #0B3C5D;
  --color-primary-light: #1a5a85;
  --color-primary-dark: #062a42;
  
  /* 辅助色 */
  --color-accent: #FF6B4A;
  --color-accent-light: #FF8A6E;
  --color-accent-dark: #E55538;
  
  /* 背景色 */
  --color-bg: #F7F3EC;
  --color-bg-white: #FFFFFF;
  --color-bg-alt: #F0EBE1;
  
  /* 点缀色 */
  --color-teal: #2EC4B6;
  --color-teal-light: #5DD6CB;
  
  /* 文字色 */
  --color-text: #1F2933;
  --color-text-secondary: #6B7280;
  --color-text-light: #9CA3AF;
  --color-text-white: #FFFFFF;
  
  /* 边框 & 分割线 */
  --color-border: #E5E7EB;
  --color-border-light: #F3F4F6;
  
  /* 阴影 */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.12);
  --shadow-accent: 0 8px 24px rgba(255, 107, 74, 0.3);
  
  /* 圆角 */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 999px;
  
  /* 间距 */
  --space-xs: 8px;
  --space-sm: 16px;
  --space-md: 24px;
  --space-lg: 40px;
  --space-xl: 64px;
  --space-2xl: 96px;
  
  /* 字体 */
  --font-sans: "PingFang SC", "Microsoft YaHei", "Source Han Sans CN", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-heading: "PingFang SC", "Microsoft YaHei", "Source Han Sans CN", -apple-system, sans-serif;
  
  /* 过渡 */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  
  /* 容器 */
  --container-max: 1200px;
  --container-padding: 24px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-accent);
}

ul, ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  font-size: inherit;
}

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
  outline: none;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-text);
  letter-spacing: -0.02em;
}

/* ---------- 通用容器 ---------- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

/* ---------- 按钮组件 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 15px;
  line-height: 1;
  transition: all var(--transition-normal);
  cursor: pointer;
  white-space: nowrap;
  border: 2px solid transparent;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
  color: #fff;
  box-shadow: 0 4px 16px rgba(255, 107, 74, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 8px 24px rgba(255, 107, 74, 0.4);
  color: #fff;
}

.btn-secondary {
  background: #fff;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn-secondary:hover {
  background: var(--color-primary);
  color: #fff;
  transform: translateY(-2px);
}

.btn-outline-white {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.5);
}

.btn-outline-white:hover {
  background: #fff;
  color: var(--color-primary);
  border-color: #fff;
}

.btn-ghost {
  background: transparent;
  color: var(--color-primary);
}

.btn-ghost:hover {
  color: var(--color-accent);
}

.btn-lg {
  padding: 18px 40px;
  font-size: 16px;
}

.btn-sm {
  padding: 10px 20px;
  font-size: 14px;
}

/* ---------- 板块通用 ---------- */
.section {
  padding: var(--space-2xl) 0;
}

.section-alt {
  background: var(--color-bg-white);
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.section-subtitle {
  display: inline-block;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-accent);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: var(--space-sm);
  position: relative;
}

.section-subtitle::before,
.section-subtitle::after {
  content: '';
  position: absolute;
  top: 50%;
  width: 30px;
  height: 1px;
  background: var(--color-accent);
  opacity: 0.5;
}

.section-subtitle::before {
  left: -45px;
}

.section-subtitle::after {
  right: -45px;
}

.section-title {
  font-size: clamp(28px, 4vw, 42px);
  margin-bottom: var(--space-sm);
}

.section-desc {
  font-size: 16px;
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* ---------- 卡片组件 ---------- */
.card {
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

.card-img {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4 / 3;
}

.card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.card:hover .card-img img {
  transform: scale(1.05);
}

.card-body {
  padding: var(--space-md);
}

.card-tag {
  display: inline-block;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 600;
  background: rgba(255, 107, 74, 0.1);
  color: var(--color-accent);
}

.card-tag.hot {
  background: linear-gradient(135deg, #FF6B4A, #FF8A6E);
  color: #fff;
}

.card-tag.new {
  background: rgba(46, 196, 182, 0.15);
  color: var(--color-teal);
}

/* ---------- 滚动动画 ---------- */
.fade-in-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- 导航栏 ---------- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 20px 0;
  transition: all var(--transition-normal);
  background: transparent;
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  padding: 14px 0;
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  transition: color var(--transition-fast);
}

.navbar.scrolled .navbar-logo {
  color: var(--color-primary);
}

.navbar-logo-icon {
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, var(--color-accent), var(--color-teal));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 20px;
}

.navbar-menu {
  display: flex;
  align-items: center;
  gap: 8px;
}

.navbar-menu a {
  padding: 10px 18px;
  font-size: 15px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.9);
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
  position: relative;
}

.navbar.scrolled .navbar-menu a {
  color: var(--color-text);
}

.navbar-menu a:hover,
.navbar-menu a.active {
  color: var(--color-accent);
}

.navbar.scrolled .navbar-menu a:hover,
.navbar.scrolled .navbar-menu a.active {
  color: var(--color-accent);
  background: rgba(255, 107, 74, 0.08);
}

.navbar-right {
  display: flex;
  align-items: center;
  gap: 20px;
}

.navbar-phone {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-weight: 600;
  font-size: 15px;
  transition: color var(--transition-fast);
}

.navbar.scrolled .navbar-phone {
  color: var(--color-primary);
}

.navbar-phone-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition-fast);
}

.navbar.scrolled .navbar-phone-icon {
  background: rgba(255, 107, 74, 0.1);
  color: var(--color-accent);
}

.navbar-phone-text small {
  display: block;
  font-size: 12px;
  font-weight: 400;
  opacity: 0.8;
}

/* 移动端菜单按钮 */
.menu-toggle {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 24px;
}

.navbar.scrolled .menu-toggle {
  color: var(--color-primary);
}

/* ---------- Hero 区域 ---------- */
.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  overflow: hidden;
}

.hero-slides {
  position: absolute;
  inset: 0;
}

.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1s ease;
  background-size: cover;
  background-position: center;
}

.hero-slide.active {
  opacity: 1;
}

.hero-slide::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11, 60, 93, 0.2), rgba(11, 60, 93, 0.75));
}

.hero-slide-1 {
  background-image: linear-gradient(135deg, #0B3C5D 0%, #1a5a85 50%, #2EC4B6 100%);
}

.hero-slide-2 {
  background-image: linear-gradient(135deg, #062a42 0%, #0B3C5D 50%, #FF6B4A 100%);
}

.hero-slide-3 {
  background-image: linear-gradient(135deg, #0B3C5D 0%, #1a5a85 40%, #5DD6CB 100%);
}

/* 装饰图案 */
.hero-decoration {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.hero-decoration::before {
  content: '';
  position: absolute;
  top: 10%;
  right: -100px;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(46, 196, 182, 0.3), transparent 70%);
  filter: blur(60px);
}

.hero-decoration::after {
  content: '';
  position: absolute;
  bottom: -150px;
  left: -100px;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 107, 74, 0.25), transparent 70%);
  filter: blur(80px);
}

.hero-content {
  position: relative;
  z-index: 2;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  color: #fff;
  padding-top: 80px;
}

.hero-slogan {
  font-size: clamp(32px, 6vw, 64px);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--space-md);
  letter-spacing: -0.03em;
}

.hero-slogan span {
  background: linear-gradient(135deg, #FF6B4A, #FFB347);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: clamp(16px, 2vw, 20px);
  opacity: 0.9;
  margin-bottom: var(--space-xl);
  max-width: 600px;
  line-height: 1.6;
}

/* 搜索框 */
.hero-search {
  width: 100%;
  max-width: 900px;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  border-radius: var(--radius-xl);
  padding: 24px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
}

.search-form {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr auto;
  gap: 16px;
}

.search-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.search-field label {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text-secondary);
  padding-left: 4px;
}

.search-field input,
.search-field select {
  padding: 12px 16px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 15px;
  color: var(--color-text);
  background: #fff;
  transition: border-color var(--transition-fast);
}

.search-field input:focus,
.search-field select:focus {
  border-color: var(--color-accent);
}

.search-submit {
  align-self: end;
  padding: 14px 36px;
  height: 48px;
}

/* Hero 轮播指示器 */
.hero-dots {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
  z-index: 3;
}

.hero-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.4);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.hero-dot.active {
  width: 32px;
  border-radius: 5px;
  background: var(--color-accent);
}

/* 滚动提示 */
.hero-scroll-hint {
  position: absolute;
  bottom: 80px;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255, 255, 255, 0.7);
  font-size: 13px;
  text-align: center;
  z-index: 3;
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(-10px); }
}

/* ---------- 热门线路 ---------- */
.tours-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.tour-card .card-img {
  aspect-ratio: 16 / 10;
}

.tour-card .card-tags {
  position: absolute;
  top: 16px;
  left: 16px;
  display: flex;
  gap: 8px;
  z-index: 2;
}

.tour-card .card-duration {
  position: absolute;
  bottom: 16px;
  right: 16px;
  background: rgba(0, 0, 0, 0.6);
  color: #fff;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 500;
  backdrop-filter: blur(10px);
  z-index: 2;
}

.tour-card .card-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--color-text);
  line-height: 1.4;
}

.tour-card .card-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
  font-size: 13px;
  color: var(--color-text-secondary);
}

.tour-card .card-meta-item {
  display: flex;
  align-items: center;
  gap: 4px;
}

.tour-card .card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid var(--color-border-light);
}

.tour-card .card-price {
  display: flex;
  align-items: baseline;
  gap: 2px;
}

.tour-card .card-price-label {
  font-size: 13px;
  color: var(--color-text-secondary);
}

.tour-card .card-price-value {
  font-size: 26px;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
}

.tour-card .card-price-unit {
  font-size: 13px;
  color: var(--color-text-secondary);
}

.view-more {
  text-align: center;
  margin-top: var(--space-xl);
}

/* ---------- 为什么选择我们 ---------- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.feature-card {
  text-align: center;
  padding: 40px 28px;
  background: #fff;
  border-radius: var(--radius-lg);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-teal));
  transform: scaleX(0);
  transition: transform var(--transition-normal);
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-md);
}

.feature-card:hover::before {
  transform: scaleX(1);
}

.feature-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 24px;
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  background: linear-gradient(135deg, rgba(255, 107, 74, 0.1), rgba(46, 196, 182, 0.1));
  color: var(--color-accent);
  transition: all var(--transition-normal);
}

.feature-card:hover .feature-icon {
  transform: scale(1.1);
  background: linear-gradient(135deg, var(--color-accent), var(--color-teal));
  color: #fff;
}

.feature-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 12px;
}

.feature-desc {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* ---------- 目的地介绍 ---------- */
.destination-section {
  background: var(--color-bg-white);
}

.destination-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.destination-images {
  position: relative;
}

.destination-img-main {
  width: 100%;
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-xl);
  background: linear-gradient(135deg, #0B3C5D, #2EC4B6);
  overflow: hidden;
  position: relative;
}

.destination-img-secondary {
  position: absolute;
  bottom: -30px;
  right: -30px;
  width: 55%;
  aspect-ratio: 1;
  border-radius: var(--radius-xl);
  background: linear-gradient(135deg, #FF6B4A, #FFB347);
  border: 8px solid #fff;
  box-shadow: var(--shadow-lg);
}

.destination-text h2 {
  font-size: clamp(28px, 3.5vw, 40px);
  margin-bottom: var(--space-md);
}

.destination-text .lead {
  font-size: 18px;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-lg);
  line-height: 1.8;
}

.destination-highlights {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: var(--space-lg);
}

.destination-highlight {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.destination-highlight-icon {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: rgba(46, 196, 182, 0.15);
  color: var(--color-teal);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}

.destination-highlight h4 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 4px;
}

.destination-highlight p {
  font-size: 13px;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ---------- 客户评价 ---------- */
.testimonials-section {
  background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-alt) 100%);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.testimonial-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  position: relative;
  transition: all var(--transition-normal);
}

.testimonial-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

.testimonial-quote {
  position: absolute;
  top: 24px;
  right: 28px;
  font-size: 48px;
  color: var(--color-teal);
  opacity: 0.2;
  font-family: Georgia, serif;
  line-height: 1;
}

.testimonial-content {
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: 28px;
  position: relative;
  z-index: 1;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 14px;
}

.testimonial-avatar {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-accent), var(--color-teal));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 18px;
}

.testimonial-info h4 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 2px;
}

.testimonial-info p {
  font-size: 13px;
  color: var(--color-text-secondary);
}

.testimonial-rating {
  margin-top: 12px;
  color: #FFB347;
  font-size: 14px;
  letter-spacing: 2px;
}

/* ---------- 攻略/新闻 ---------- */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.blog-card .card-img {
  aspect-ratio: 16 / 9;
}

.blog-card .card-category {
  position: absolute;
  top: 16px;
  left: 16px;
  background: rgba(255, 255, 255, 0.95);
  color: var(--color-primary);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 600;
  z-index: 2;
}

.blog-card .card-date {
  font-size: 13px;
  color: var(--color-text-light);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.blog-card .card-title {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 12px;
  line-height: 1.5;
  transition: color var(--transition-fast);
}

.blog-card:hover .card-title {
  color: var(--color-accent);
}

.blog-card .card-excerpt {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ---------- CTA 区域 ---------- */
.cta-section {
  position: relative;
  padding: 80px 0;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(46, 196, 182, 0.2), transparent 70%);
  filter: blur(40px);
}

.cta-section::after {
  content: '';
  position: absolute;
  bottom: -50%;
  left: -10%;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 107, 74, 0.2), transparent 70%);
  filter: blur(40px);
}

.cta-content {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.cta-text h2 {
  font-size: clamp(28px, 3.5vw, 40px);
  color: #fff;
  margin-bottom: var(--space-md);
}

.cta-text p {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: var(--space-lg);
  line-height: 1.8;
}

.cta-features {
  display: flex;
  gap: 32px;
}

.cta-feature {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-size: 14px;
}

.cta-feature-icon {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(46, 196, 182, 0.3);
  color: var(--color-teal-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
}

.cta-form {
  background: #fff;
  border-radius: var(--radius-xl);
  padding: 36px;
  box-shadow: var(--shadow-lg);
}

.cta-form h3 {
  font-size: 22px;
  margin-bottom: 8px;
}

.cta-form-subtitle {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-bottom: 28px;
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text-secondary);
  margin-bottom: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 15px;
  color: var(--color-text);
  background: #fff;
  transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--color-accent);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.cta-form .btn {
  width: 100%;
  margin-top: 8px;
  height: 50px;
}

/* ---------- 合作伙伴/资质 ---------- */
.partners-section {
  padding: 64px 0;
  background: #fff;
}

.partners-logos {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 48px;
  opacity: 0.6;
}

.partner-logo {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-text-secondary);
  letter-spacing: 0.05em;
  padding: 12px 24px;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.partner-logo:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  opacity: 1;
}

/* ---------- Footer ---------- */
.footer {
  background: var(--color-primary-dark);
  color: rgba(255, 255, 255, 0.7);
  padding-top: 80px;
  position: relative;
}

.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(46, 196, 182, 0.5), transparent);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 60px;
}

.footer-brand {
  max-width: 320px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 20px;
}

.footer-logo-icon {
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, var(--color-accent), var(--color-teal));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 20px;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  margin-bottom: 24px;
}

.footer-social {
  display: flex;
  gap: 12px;
}

.footer-social a {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  transition: all var(--transition-fast);
}

.footer-social a:hover {
  background: var(--color-accent);
  transform: translateY(-3px);
}

.footer-col h4 {
  color: #fff;
  font-size: 16px;
  margin-bottom: 24px;
  position: relative;
  padding-bottom: 12px;
}

.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 30px;
  height: 2px;
  background: var(--color-accent);
  border-radius: 1px;
}

.footer-links li {
  margin-bottom: 12px;
}

.footer-links a {
  font-size: 14px;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 8px;
}

.footer-links a::before {
  content: '›';
  color: var(--color-teal);
  font-size: 16px;
  opacity: 0;
  transform: translateX(-4px);
  transition: all var(--transition-fast);
}

.footer-links a:hover {
  color: #fff;
  padding-left: 4px;
}

.footer-links a:hover::before {
  opacity: 1;
  transform: translateX(0);
}

.footer-contact li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 16px;
  font-size: 14px;
  line-height: 1.7;
}

.footer-contact-icon {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-teal);
  font-size: 14px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 24px 0;
  font-size: 13px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-bottom-links {
  display: flex;
  gap: 24px;
}

.footer-bottom-links a:hover {
  color: #fff;
}

/* ---------- 移动端悬浮咨询栏 ---------- */
.mobile-cta-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: #fff;
  padding: 12px 16px;
  padding-bottom: calc(12px + env(safe-area-inset-bottom));
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.1);
  z-index: 999;
  gap: 12px;
}

.mobile-cta-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 8px;
  border-radius: var(--radius-md);
  font-size: 12px;
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
}

.mobile-cta-item:hover {
  background: var(--color-bg);
  color: var(--color-accent);
}

.mobile-cta-item-icon {
  font-size: 22px;
}

.mobile-cta-item.primary {
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
  color: #fff;
  border-radius: var(--radius-full);
  flex: 1.5;
  flex-direction: row;
  font-weight: 600;
  font-size: 14px;
}

.mobile-cta-item.primary:hover {
  background: linear-gradient(135deg, var(--color-accent-dark), var(--color-accent));
  color: #fff;
}

/* ---------- 页面头部 Banner（内页通用） ---------- */
.page-banner {
  position: relative;
  height: 400px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: #fff;
}

.page-banner::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(46, 196, 182, 0.25), transparent 70%);
  filter: blur(40px);
}

.page-banner::after {
  content: '';
  position: absolute;
  bottom: -50%;
  left: -10%;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 107, 74, 0.2), transparent 70%);
  filter: blur(40px);
}

.page-banner-content {
  position: relative;
  z-index: 1;
}

.page-banner h1 {
  font-size: clamp(32px, 5vw, 48px);
  color: #fff;
  margin-bottom: 16px;
}

.page-banner p {
  font-size: 18px;
  opacity: 0.85;
  max-width: 600px;
  margin: 0 auto;
}

.breadcrumb {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  opacity: 0.8;
  z-index: 1;
}

.breadcrumb a {
  color: #fff;
}

.breadcrumb a:hover {
  color: var(--color-accent-light);
}

.breadcrumb-separator {
  opacity: 0.5;
}

/* ---------- 响应式设计 ---------- */
@media (max-width: 1024px) {
  .tours-grid,
  .testimonials-grid,
  .blog-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .destination-content,
  .cta-content {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  
  .destination-img-secondary {
    right: 20px;
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }
}

@media (max-width: 768px) {
  :root {
    --container-padding: 20px;
    --space-2xl: 64px;
    --space-xl: 48px;
  }
  
  .navbar-menu,
  .navbar-phone-text {
    display: none;
  }
  
  .menu-toggle {
    display: flex;
  }
  
  .navbar-right {
    gap: 12px;
  }
  
  .search-form {
    grid-template-columns: 1fr;
  }
  
  .search-submit {
    align-self: stretch;
  }
  
  .hero-search {
    padding: 20px;
    margin: 0 16px;
    width: calc(100% - 32px);
  }
  
  .tours-grid,
  .testimonials-grid,
  .blog-grid,
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .destination-highlights {
    grid-template-columns: 1fr;
  }
  
  .cta-features {
    flex-direction: column;
    gap: 16px;
  }
  
  .form-row {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
  
  .mobile-cta-bar {
    display: flex;
  }
  
  .page-banner {
    height: 300px;
  }
  
  .section-subtitle::before,
  .section-subtitle::after {
    display: none;
  }
  
  .partners-logos {
    gap: 24px;
  }
}

@media (max-width: 480px) {
  .hero-slogan {
    font-size: 32px;
  }
  
  .cta-form {
    padding: 28px 24px;
  }
  
  .btn {
    padding: 12px 24px;
    font-size: 14px;
  }
  
  .btn-lg {
    padding: 16px 32px;
  }
}