/* ============================================================
   合美越南旅游 · 设计系统 Design System
   主色：越南深青 #0F4C5C  |  辅助：灯笼橙 #F4A261  |  背景：米白 #FAF7F2
   ============================================================ */

/* ---------- 0. 设计令牌 Design Tokens ---------- */
:root {
  /* 色彩 */
  --teal-900: #0B3A47;
  --teal-800: #0F4C5C;   /* 主色 */
  --teal-700: #14607A;
  --teal-600: #1A7A99;
  --green-600: #2A9D8F;  /* 热带绿 */
  --coral: #E76F51;      /* 莲花粉 */
  --orange: #F4A261;     /* 灯笼橙 */
  --gold: #C9A227;       /* 金色点缀 */
  --gold-light: #E0C25C;
  --cream: #FAF7F2;      /* 背景米白 */
  --cream-2: #F3EDE3;
  --ink: #1F2933;        /* 正文深灰 */
  --ink-2: #3E4C59;
  --gray: #6B7280;       /* 次级灰 */
  --gray-2: #9AA5B1;
  --line: #E8E2D6;
  --white: #FFFFFF;

  /* 渐变 */
  --grad-cta: linear-gradient(135deg, #F4A261 0%, #E76F51 100%);
  --grad-cta-hover: linear-gradient(135deg, #E76F51 0%, #F4A261 100%);
  --grad-gold: linear-gradient(135deg, #E0C25C 0%, #C9A227 100%);
  --hero-overlay: linear-gradient(180deg, rgba(15,76,92,0.15) 0%, rgba(15,76,92,0.85) 100%);

  /* 字体 */
  --font-serif: 'Playfair Display', 'Songti SC', 'Noto Serif SC', serif;
  --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;

  /* 圆角 */
  --r-sm: 10px;
  --r-md: 16px;
  --r-lg: 20px;
  --r-xl: 24px;
  --r-pill: 999px;

  /* 阴影 */
  --sh-sm: 0 2px 8px rgba(15, 76, 92, 0.06);
  --sh-md: 0 10px 30px rgba(0, 0, 0, 0.08);
  --sh-lg: 0 20px 50px rgba(15, 76, 92, 0.18);
  --sh-card: 0 8px 24px rgba(15, 76, 92, 0.10);

  /* 间距 */
  --section: clamp(64px, 8vw, 120px);
  --container: 1240px;

  /* 动效 */
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --dur: 0.5s;
}

/* ---------- 1. 基础重置 ---------- */
*,
*::before,
*::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

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

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea, select { font-family: inherit; font-size: inherit; }

::selection { background: var(--orange); color: #fff; }

/* ---------- 2. 排版 ---------- */
h1, h2, h3, h4 { font-weight: 700; line-height: 1.25; color: var(--teal-900); }
h1 { font-size: clamp(2rem, 4.5vw, 3.4rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.4rem); }
h3 { font-size: 1.3rem; }
p { color: var(--ink-2); }

.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 0.8rem; font-weight: 600; letter-spacing: 3px;
  text-transform: uppercase; color: var(--gold);
}
.eyebrow::before { content: ''; width: 28px; height: 2px; background: var(--gold); }

.serif { font-family: var(--font-serif); font-weight: 600; }

/* ---------- 3. 布局容器 ---------- */
.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: 24px; }
.section { padding-block: var(--section); }
.section-tight { padding-block: clamp(48px, 6vw, 80px); }
.center { text-align: center; }
.section-head { max-width: 680px; margin: 0 auto 56px; }
.section-head.center { text-align: center; }
.section-head h2 { margin: 14px 0 12px; }
.section-head p { color: var(--gray); font-size: 1.02rem; }

/* ---------- 4. 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 28px; border-radius: var(--r-pill);
  font-weight: 600; font-size: 0.95rem; letter-spacing: 0.5px;
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), background var(--dur);
  white-space: nowrap;
}
.btn-primary { background: var(--grad-cta); color: #fff; box-shadow: 0 8px 20px rgba(231, 111, 81, 0.35); }
.btn-primary:hover { transform: translateY(-3px) scale(1.03); box-shadow: 0 12px 28px rgba(231, 111, 81, 0.5); }
.btn-ghost { background: rgba(255,255,255,0.15); color: #fff; border: 1.5px solid rgba(255,255,255,0.55); backdrop-filter: blur(4px); }
.btn-ghost:hover { background: rgba(255,255,255,0.28); transform: translateY(-3px); }
.btn-dark { background: var(--teal-800); color: #fff; }
.btn-dark:hover { background: var(--teal-700); transform: translateY(-3px); }
.btn-lg { padding: 16px 36px; font-size: 1.05rem; }

/* ---------- 5. 标签 ---------- */
.tag {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 4px 12px; border-radius: var(--r-pill);
  font-size: 0.75rem; font-weight: 600; letter-spacing: 0.5px;
  background: var(--cream-2); color: var(--teal-800);
}
.tag-hot { background: rgba(231,111,81,0.12); color: var(--coral); }
.tag-pure { background: rgba(42,157,143,0.12); color: var(--green-600); }
.tag-kid { background: rgba(244,162,97,0.15); color: #c26a1e; }
.tag-vip { background: rgba(201,162,39,0.15); color: var(--gold); }
.tag-free { background: rgba(15,76,92,0.1); color: var(--teal-800); }

/* ---------- 6. 导航栏 ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  transition: background var(--dur) var(--ease), box-shadow var(--dur) var(--ease), padding var(--dur);
  padding: 18px 0;
}
.nav.scrolled { background: rgba(255,255,255,0.96); box-shadow: var(--sh-sm); padding: 12px 0; backdrop-filter: blur(12px); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.nav-logo { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.nav-logo .logo-mark {
  width: 44px; height: 44px; border-radius: 12px;
  background: var(--grad-cta); display: grid; place-items: center;
  color: #fff; font-family: var(--font-serif); font-weight: 700; font-size: 1.4rem;
  box-shadow: 0 6px 16px rgba(231,111,81,0.4);
}
.nav-logo .logo-text { line-height: 1.15; }
.nav-logo .logo-text b { display: block; font-size: 1.02rem; color: #fff; transition: color var(--dur); letter-spacing: 1px; }
.nav-logo .logo-text span { font-size: 0.7rem; color: rgba(255,255,255,0.75); letter-spacing: 2px; }
.nav.scrolled .nav-logo .logo-text b { color: var(--teal-900); }
.nav.scrolled .nav-logo .logo-text span { color: var(--gray); }

.nav-menu { display: flex; align-items: center; gap: 4px; }
.nav-menu a {
  padding: 8px 15px; border-radius: var(--r-pill);
  font-size: 0.92rem; font-weight: 500; color: #fff;
  transition: background var(--dur), color var(--dur);
}
.nav.scrolled .nav-menu a { color: var(--ink-2); }
.nav-menu a:hover, .nav-menu a.active { background: rgba(255,255,255,0.18); color: #fff; }
.nav.scrolled .nav-menu a:hover, .nav.scrolled .nav-menu a.active { background: var(--cream-2); color: var(--teal-800); }

.nav-right { display: flex; align-items: center; gap: 16px; flex-shrink: 0; }
.nav-phone { display: flex; align-items: center; gap: 8px; color: #fff; font-weight: 700; font-size: 0.95rem; transition: color var(--dur); }
.nav.scrolled .nav-phone { color: var(--teal-800); }
.nav-phone svg { flex-shrink: 0; }
.hamburger { display: none; flex-direction: column; gap: 5px; padding: 8px; }
.hamburger span { width: 26px; height: 2.5px; background: #fff; border-radius: 3px; transition: var(--dur); }
.nav.scrolled .hamburger span { background: var(--teal-900); }

/* 移动端菜单 */
.mobile-menu {
  position: fixed; inset: 0; z-index: 99;
  background: var(--teal-900);
  transform: translateX(100%); transition: transform 0.4s var(--ease);
  display: flex; flex-direction: column; padding: 100px 32px 32px;
}
.mobile-menu.open { transform: translateX(0); }
.mobile-menu a { color: #fff; font-size: 1.25rem; font-weight: 600; padding: 16px 0; border-bottom: 1px solid rgba(255,255,255,0.1); }
.mobile-menu .btn { margin-top: 28px; }
.menu-close { position: absolute; top: 22px; right: 24px; color: #fff; font-size: 2rem; }

/* ---------- 7. Hero 轮播 ---------- */
.hero { position: relative; height: 100vh; min-height: 620px; overflow: hidden; }
.hero-slide { position: absolute; inset: 0; opacity: 0; transition: opacity 1.2s var(--ease); }
.hero-slide.active { opacity: 1; }
.hero-slide img { width: 100%; height: 100%; object-fit: cover; }
.hero-slide::after { content: ''; position: absolute; inset: 0; background: var(--hero-overlay); }
.hero-content {
  position: relative; z-index: 3; height: 100%;
  display: flex; flex-direction: column; justify-content: center;
  color: #fff; max-width: 760px;
}
.hero-tag { font-size: 0.85rem; letter-spacing: 4px; text-transform: uppercase; color: var(--gold-light); margin-bottom: 18px; font-weight: 600; }
.hero h1 { color: #fff; margin-bottom: 18px; }
.hero h1 .serif { font-style: italic; color: var(--gold-light); }
.hero-desc { font-size: 1.1rem; color: rgba(255,255,255,0.88); margin-bottom: 34px; max-width: 560px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-stats { display: flex; gap: 40px; margin-top: 48px; }
.hero-stat b { display: block; font-family: var(--font-serif); font-size: 2.2rem; color: #fff; }
.hero-stat span { font-size: 0.82rem; color: rgba(255,255,255,0.7); letter-spacing: 1px; }

/* Hero 内搜索框 */
.hero-search {
  position: absolute; bottom: -40px; left: 50%; transform: translateX(-50%);
  z-index: 5; width: min(1080px, calc(100% - 48px));
  background: var(--white); border-radius: var(--r-xl);
  box-shadow: var(--sh-lg); padding: 20px;
  display: grid; grid-template-columns: repeat(4, 1fr) auto; gap: 14px; align-items: end;
}
.search-field label { display: block; font-size: 0.75rem; font-weight: 600; color: var(--gray); letter-spacing: 1px; margin-bottom: 6px; }
.search-field input, .search-field select {
  width: 100%; padding: 12px 14px; border: 1.5px solid var(--line);
  border-radius: var(--r-md); background: var(--cream); color: var(--ink);
  transition: border-color var(--dur);
}
.search-field input:focus, .search-field select:focus { outline: none; border-color: var(--orange); }
.hero-search .btn { height: 48px; }

/* 轮播控制 */
.hero-dots { position: absolute; bottom: 90px; left: 50%; transform: translateX(-50%); z-index: 5; display: flex; gap: 10px; }
.hero-dots button { width: 10px; height: 10px; border-radius: 50%; background: rgba(255,255,255,0.4); transition: var(--dur); }
.hero-dots button.active { background: var(--gold-light); width: 30px; border-radius: 5px; }
.hero-arrows { position: absolute; top: 50%; transform: translateY(-50%); z-index: 5; width: 100%; display: flex; justify-content: space-between; padding: 0 28px; pointer-events: none; }
.hero-arrows button { pointer-events: auto; width: 52px; height: 52px; border-radius: 50%; background: rgba(255,255,255,0.2); backdrop-filter: blur(6px); color: #fff; font-size: 1.3rem; display: grid; place-items: center; transition: var(--dur); }
.hero-arrows button:hover { background: rgba(255,255,255,0.4); }

/* ---------- 8. 通用卡片 ---------- */
.card {
  background: var(--white); border-radius: var(--r-lg); overflow: hidden;
  box-shadow: var(--sh-card); transition: transform var(--dur) var(--ease), box-shadow var(--dur);
  display: flex; flex-direction: column;
}
.card:hover { transform: translateY(-6px); box-shadow: var(--sh-lg); }
.card-media { position: relative; overflow: hidden; aspect-ratio: 16/10; }
.card-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.7s var(--ease); }
.card:hover .card-media img { transform: scale(1.06); }
.card-body { padding: 20px 22px 24px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.card-body h3 { font-size: 1.12rem; }
.card-body h3 a:hover { color: var(--coral); }
.card-tags { display: flex; gap: 6px; flex-wrap: wrap; }
.card-meta { display: flex; align-items: center; justify-content: space-between; margin-top: auto; padding-top: 12px; border-top: 1px dashed var(--line); }
.card-meta .price { color: var(--coral); font-weight: 800; font-size: 1.15rem; }
.card-meta .price small { font-size: 0.75rem; font-weight: 500; color: var(--gray); }
.card-meta .days { font-size: 0.82rem; color: var(--gray); }

/* 网格 */
.grid { display: grid; gap: 26px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

/* ---------- 9. 目的地快捷入口 ---------- */
.dest-quick { display: grid; grid-template-columns: repeat(6, 1fr); gap: 18px; }
.dest-chip {
  position: relative; border-radius: var(--r-lg); overflow: hidden; aspect-ratio: 3/4;
  cursor: pointer; transition: transform var(--dur) var(--ease);
}
.dest-chip img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.7s var(--ease); }
.dest-chip:hover { transform: translateY(-5px); }
.dest-chip:hover img { transform: scale(1.08); }
.dest-chip::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 40%, rgba(11,58,71,0.85)); }
.dest-chip span { position: absolute; bottom: 16px; left: 0; right: 0; text-align: center; color: #fff; font-weight: 600; z-index: 2; font-size: 0.95rem; }
.dest-chip small { display: block; font-size: 0.68rem; font-weight: 400; letter-spacing: 2px; opacity: 0.85; margin-top: 2px; }

/* ---------- 10. 优势 Why Us ---------- */
.why { background: var(--teal-900); color: #fff; position: relative; overflow: hidden; }
.why::before {
  content: ''; position: absolute; right: -120px; top: -120px;
  width: 420px; height: 420px; border-radius: 50%;
  background: radial-gradient(circle, rgba(201,162,39,0.18), transparent 70%);
}
.why .eyebrow { color: var(--gold-light); }
.why h2 { color: #fff; }
.why .section-head p { color: rgba(255,255,255,0.7); }
.why-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; position: relative; z-index: 2; }
.why-item { background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.1); border-radius: var(--r-lg); padding: 32px 26px; transition: var(--dur); }
.why-item:hover { background: rgba(255,255,255,0.1); transform: translateY(-5px); border-color: var(--gold); }
.why-icon { width: 54px; height: 54px; border-radius: 14px; background: var(--grad-gold); display: grid; place-items: center; color: #fff; font-size: 1.5rem; margin-bottom: 18px; }
.why-item h3 { color: #fff; font-size: 1.1rem; margin-bottom: 8px; }
.why-item p { color: rgba(255,255,255,0.68); font-size: 0.9rem; }

/* ---------- 11. 目的地精选（图文交错） ---------- */
.feature-row { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; margin-bottom: 80px; }
.feature-row:last-child { margin-bottom: 0; }
.feature-row.reverse .feature-media { order: 2; }
.feature-media { border-radius: var(--r-xl); overflow: hidden; box-shadow: var(--sh-lg); position: relative; aspect-ratio: 4/3; }
.feature-media img { width: 100%; height: 100%; object-fit: cover; }
.feature-media .badge {
  position: absolute; top: 20px; left: 20px; background: var(--grad-gold); color: #fff;
  padding: 8px 18px; border-radius: var(--r-pill); font-weight: 600; font-size: 0.82rem;
}
.feature-text h3 { font-size: 1.8rem; margin-bottom: 14px; }
.feature-text .dest-en { font-family: var(--font-serif); font-style: italic; color: var(--gold); font-size: 1rem; letter-spacing: 2px; }
.feature-text p { margin-bottom: 18px; color: var(--ink-2); }
.feature-list { display: grid; gap: 10px; margin-bottom: 24px; }
.feature-list li { display: flex; gap: 10px; align-items: flex-start; color: var(--ink-2); font-size: 0.95rem; }
.feature-list li::before { content: '✓'; color: var(--green-600); font-weight: 800; flex-shrink: 0; }

/* ---------- 12. 评价轮播 ---------- */
.reviews { background: var(--cream-2); }
.review-track { display: flex; gap: 26px; overflow-x: auto; scroll-snap-type: x mandatory; padding-bottom: 14px; scrollbar-width: none; }
.review-track::-webkit-scrollbar { display: none; }
.review-card { flex: 0 0 380px; scroll-snap-align: start; background: var(--white); border-radius: var(--r-lg); padding: 30px; box-shadow: var(--sh-card); }
.review-stars { color: var(--gold); letter-spacing: 3px; margin-bottom: 14px; }
.review-card p { font-size: 0.95rem; margin-bottom: 20px; }
.review-user { display: flex; align-items: center; gap: 12px; }
.review-user .avatar { width: 46px; height: 46px; border-radius: 50%; background: var(--grad-cta); color: #fff; display: grid; place-items: center; font-weight: 700; }
.review-user b { display: block; font-size: 0.95rem; }
.review-user span { font-size: 0.78rem; color: var(--gray); }

/* ---------- 13. 签证服务 ---------- */
.visa-band { background: var(--white); }
.visa-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 50px; align-items: center; }
.visa-media { border-radius: var(--r-xl); overflow: hidden; box-shadow: var(--sh-lg); aspect-ratio: 16/11; }
.visa-media img { width: 100%; height: 100%; object-fit: cover; }
.visa-types { display: grid; gap: 14px; margin: 22px 0 28px; }
.visa-type { display: flex; gap: 14px; padding: 16px; border: 1.5px solid var(--line); border-radius: var(--r-md); transition: var(--dur); }
.visa-type:hover { border-color: var(--orange); background: var(--cream); }
.visa-type .vt-icon { width: 44px; height: 44px; flex-shrink: 0; border-radius: 12px; background: var(--cream-2); display: grid; place-items: center; font-size: 1.3rem; }
.visa-type b { display: block; margin-bottom: 3px; }
.visa-type small { color: var(--gray); font-size: 0.82rem; }

/* ---------- 14. CTA 区块 ---------- */
.cta-band {
  background: linear-gradient(135deg, var(--teal-900), var(--teal-700));
  border-radius: var(--r-xl); color: #fff; padding: 56px 48px;
  display: flex; align-items: center; justify-content: space-between; gap: 32px; flex-wrap: wrap;
  box-shadow: var(--sh-lg); position: relative; overflow: hidden;
}
.cta-band::before { content: ''; position: absolute; right: -60px; bottom: -60px; width: 260px; height: 260px; border-radius: 50%; background: radial-gradient(circle, rgba(244,162,97,0.25), transparent 70%); }
.cta-band h2 { color: #fff; margin-bottom: 8px; }
.cta-band p { color: rgba(255,255,255,0.78); }
.cta-form { display: flex; gap: 12px; flex-wrap: wrap; }
.cta-form input { padding: 14px 20px; border-radius: var(--r-pill); border: none; width: 200px; font-size: 0.92rem; }

/* ---------- 15. 表单 ---------- */
.form-card { background: var(--white); border-radius: var(--r-xl); padding: 36px; box-shadow: var(--sh-lg); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-size: 0.85rem; font-weight: 600; margin-bottom: 8px; color: var(--ink-2); }
.form-group label .req { color: var(--coral); }
.form-group input, .form-group select, .form-group textarea {
  width: 100%; padding: 13px 16px; border: 1.5px solid var(--line); border-radius: var(--r-md);
  background: var(--cream); transition: border-color var(--dur); color: var(--ink);
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { outline: none; border-color: var(--orange); background: #fff; }
.form-group textarea { resize: vertical; min-height: 100px; }
.form-note { font-size: 0.78rem; color: var(--gray); margin-top: 14px; }

/* 成功提示 */
.toast {
  position: fixed; top: 90px; left: 50%; transform: translateX(-50%) translateY(-20px);
  background: var(--green-600); color: #fff; padding: 14px 28px; border-radius: var(--r-pill);
  box-shadow: var(--sh-lg); z-index: 200; opacity: 0; pointer-events: none; transition: var(--dur);
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ---------- 16. 页脚 ---------- */
.footer { background: var(--teal-900); color: rgba(255,255,255,0.7); padding-top: 80px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 40px; padding-bottom: 50px; }
.footer h4 { color: #fff; font-size: 1rem; margin-bottom: 18px; letter-spacing: 1px; }
.footer-brand .logo-mark { margin-bottom: 16px; }
.footer-brand p { font-size: 0.9rem; color: rgba(255,255,255,0.6); max-width: 320px; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { font-size: 0.9rem; transition: color var(--dur); }
.footer-links a:hover { color: var(--gold-light); }
.footer-contact li { display: flex; gap: 10px; margin-bottom: 12px; font-size: 0.9rem; align-items: flex-start; }
.footer-contact svg { flex-shrink: 0; margin-top: 4px; color: var(--gold-light); }
.footer-qr { display: flex; gap: 16px; }
.qr-box { width: 92px; height: 92px; background: #fff; border-radius: var(--r-md); display: grid; place-items: center; color: var(--teal-900); font-size: 0.7rem; text-align: center; padding: 6px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.12); padding: 22px 0; display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; font-size: 0.8rem; }

/* ---------- 17. 移动端底部固定咨询栏 ---------- */
.mobile-bar {
  display: none; position: fixed; bottom: 0; left: 0; right: 0; z-index: 90;
  background: rgba(255,255,255,0.98); backdrop-filter: blur(10px);
  box-shadow: 0 -4px 20px rgba(0,0,0,0.1); padding: 10px 16px;
  display: none; gap: 10px;
}
.mobile-bar a { flex: 1; display: flex; flex-direction: column; align-items: center; gap: 3px; font-size: 0.7rem; color: var(--ink-2); font-weight: 600; }
.mobile-bar .bar-cta { flex: 1.4; background: var(--grad-cta); color: #fff; border-radius: var(--r-pill); justify-content: center; padding: 10px; font-size: 0.9rem; }

/* ---------- 18. 页面头部（内页） ---------- */
.page-hero { position: relative; height: 46vh; min-height: 340px; overflow: hidden; display: flex; align-items: center; }
.page-hero img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.page-hero::after { content: ''; position: absolute; inset: 0; background: var(--hero-overlay); }
.page-hero .container { position: relative; z-index: 3; color: #fff; }
.page-hero h1 { color: #fff; margin: 12px 0; }
.breadcrumb { font-size: 0.85rem; color: rgba(255,255,255,0.8); }
.breadcrumb a:hover { color: var(--gold-light); }

/* ---------- 19. 滚动动画 ---------- */
.reveal { opacity: 0; transform: translateY(34px); transition: opacity 0.8s var(--ease), transform 0.8s var(--ease); }
.reveal.in { opacity: 1; transform: translateY(0); }
.reveal.d1 { transition-delay: 0.1s; }
.reveal.d2 { transition-delay: 0.2s; }
.reveal.d3 { transition-delay: 0.3s; }
.reveal.d4 { transition-delay: 0.4s; }

/* ---------- 20. 响应式 ---------- */
@media (max-width: 1080px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .dest-quick { grid-template-columns: repeat(3, 1fr); }
  .why-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-search { grid-template-columns: repeat(2, 1fr); bottom: -30px; }
  .hero-search .btn { grid-column: span 2; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 860px) {
  .nav-menu, .nav-phone { display: none; }
  .hamburger { display: flex; }
  .feature-row, .feature-row.reverse { grid-template-columns: 1fr; gap: 30px; }
  .feature-row.reverse .feature-media { order: 0; }
  .visa-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .hero-stats { gap: 24px; }
  .hero-stat b { font-size: 1.6rem; }
}
@media (max-width: 640px) {
  .grid-3, .grid-2, .grid-4 { grid-template-columns: 1fr; }
  .dest-quick { grid-template-columns: repeat(2, 1fr); }
  .why-grid { grid-template-columns: 1fr; }
  .hero-search { position: static; transform: none; margin: -20px 24px 0; grid-template-columns: 1fr; width: auto; }
  .hero-search .btn { grid-column: auto; }
  .hero-dots { bottom: 30px; }
  .hero-arrows { display: none; }
  .hero { min-height: 560px; }
  .cta-band { padding: 36px 26px; text-align: center; justify-content: center; }
  .cta-form { justify-content: center; }
  .cta-form input { width: 100%; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .mobile-bar { display: flex; }
  body { padding-bottom: 64px; }
  .review-card { flex: 0 0 85%; }
  .section { padding-block: 64px; }
}