/*
  Nectrip 英文静态站共享样式
  部署：本文件与各 .html、banner/ 文件夹放在一起。
*/

:root{
  --primary:#1c5098;
  --primary-dark:#0f3a73;
  --primary-light:#46acfe;
  --text-dark:#2c3e50;
  --text-light:#66788a;
  --bg:#f5f8fc;
  --white:#ffffff;
  --radius:16px;
  --shadow:0 10px 40px rgba(28,80,152,.12);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  color:var(--text-dark);background:var(--white);line-height:1.7;
}
a{text-decoration:none;color:inherit}
.container{max-width:1100px;margin:0 auto;padding:0 24px}

/* ===== Header ===== */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(255,255,255,.92);backdrop-filter:blur(12px);
  border-bottom:1px solid rgba(28,80,152,.08);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{display:flex;align-items:center;gap:12px;font-size:1.35rem;font-weight:700;color:var(--primary)}
/* 品牌 logo：固定高度、宽度自适应，保持 1:1 原始比例不变形 */
.brand-logo{height:36px;width:auto;display:block;border-radius:8px;box-shadow:0 2px 8px rgba(28,80,152,.15)}
.main-nav{display:flex;gap:28px;align-items:center}
.main-nav a{font-size:.95rem;font-weight:500;color:var(--text-dark);transition:color .2s}
.main-nav a:hover{color:var(--primary)}
.main-nav a.active{color:var(--primary);font-weight:600}
.nav-cta{
  background:linear-gradient(135deg,var(--primary) 0%,var(--primary-light) 100%);
  color:#fff !important;padding:9px 20px;border-radius:24px;
  transition:transform .2s,box-shadow .2s;
}
.nav-cta:hover{transform:translateY(-2px);box-shadow:0 6px 18px rgba(28,80,152,.35)}

/* ===== Home: Hero Banner Slider ===== */
.hero{position:relative;min-height:calc(100vh - 68px);overflow:hidden}
.hero-slide{
  position:absolute;inset:0;
  display:flex;align-items:center;justify-content:center;text-align:center;
  opacity:0;transition:opacity 1s ease;z-index:1;
  background-color:#2d6cb8;
}
.hero-slide.active{opacity:1;z-index:2}
.slide-bg-1{background-image:linear-gradient(rgba(15,58,115,.55),rgba(15,58,115,.35)),url('banner/2.jpeg');background-size:cover;background-position:center}
.slide-bg-2{background-image:linear-gradient(rgba(15,58,115,.5),rgba(15,58,115,.3)),url('banner/3.jpeg');background-size:cover;background-position:center}
.slide-bg-3{background-image:linear-gradient(rgba(15,58,115,.55),rgba(15,58,115,.35)),url('banner/1.jpeg');background-size:cover;background-position:center}
.hero-content{position:relative;max-width:820px;padding:60px 24px;color:#fff;z-index:3}
.hero-tag{
  display:inline-block;font-size:.8rem;letter-spacing:2px;text-transform:uppercase;
  border:1px solid rgba(255,255,255,.45);border-radius:20px;padding:6px 18px;margin-bottom:22px;
  background:rgba(15,58,115,.25);backdrop-filter:blur(4px);
}
.hero-content h1{
  font-size:3.4rem;line-height:1.2;margin-bottom:14px;
  text-shadow:0 4px 25px rgba(0,0,0,.55);
}
.hero-content h2{
  font-size:1.5rem;font-weight:500;opacity:.95;margin-bottom:18px;
  text-shadow:0 3px 15px rgba(0,0,0,.5);
}
.hero-content p{
  font-size:1.05rem;opacity:.9;max-width:640px;margin:0 auto 34px;
  text-shadow:0 2px 10px rgba(0,0,0,.5);
}
.hero-btn{
  display:inline-block;background:#fff;color:var(--primary);
  font-weight:700;font-size:1rem;padding:15px 42px;border-radius:32px;
  box-shadow:0 10px 30px rgba(0,0,0,.3);transition:transform .2s,box-shadow .2s;
}
.hero-btn:hover{transform:translateY(-3px);box-shadow:0 14px 36px rgba(0,0,0,.4)}
.slider-arrow{
  position:absolute;top:50%;transform:translateY(-50%);z-index:10;
  width:48px;height:48px;border:none;border-radius:50%;cursor:pointer;
  background:rgba(255,255,255,.18);color:#fff;font-size:1.5rem;line-height:1;
  backdrop-filter:blur(6px);transition:background .2s;
  display:flex;align-items:center;justify-content:center;
}
.slider-arrow:hover{background:rgba(255,255,255,.35)}
.slider-arrow.prev{left:22px}
.slider-arrow.next{right:22px}
.slider-nav{
  position:absolute;bottom:26px;left:50%;transform:translateX(-50%);
  display:flex;gap:10px;z-index:10;
}
.slider-dot{
  width:12px;height:12px;border-radius:50%;cursor:pointer;border:none;
  background:rgba(255,255,255,.4);transition:all .25s;padding:0;
}
.slider-dot.active{background:#fff;transform:scale(1.25)}

/* ===== Stats ===== */
.stats{margin-top:-60px;position:relative;z-index:5}
.stats-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;
  background:var(--white);border-radius:var(--radius);box-shadow:var(--shadow);
  padding:38px 20px;
}
.stat{text-align:center}
.stat .num{
  font-size:2.4rem;font-weight:800;
  background:linear-gradient(135deg,var(--primary),var(--primary-light));
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.stat .label{font-size:.92rem;color:var(--text-light);margin-top:4px}

/* ===== Sections ===== */
section{padding:90px 0}
.section-head{text-align:center;max-width:680px;margin:0 auto 54px}
.section-head h2{font-size:2.2rem;color:var(--primary);margin-bottom:12px}
.section-head p{color:var(--text-light)}
.alt-bg{background:var(--bg)}

/* ===== Destination cards（照片背景） ===== */
.dest-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.dest-card{
  position:relative;min-height:280px;border-radius:var(--radius);
  display:flex;color:#fff;overflow:hidden;cursor:default;
  transition:transform .25s,box-shadow .25s;
}
.dest-card:hover{transform:translateY(-8px);box-shadow:var(--shadow)}
.dest-card::before{
  content:"";position:absolute;inset:0;
  background-size:cover;background-position:center;
  transition:transform .45s ease;
}
.dest-card:hover::before{transform:scale(1.08)}
.dest-card::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(to top,rgba(15,58,115,.88) 0%,rgba(15,58,115,.35) 55%,rgba(15,58,115,.15) 100%);
}
.dest-body{position:relative;z-index:2;padding:24px 22px;margin-top:auto;text-align:center}
.dest-card .city{font-size:1.25rem;font-weight:700;display:block;text-shadow:0 2px 8px rgba(0,0,0,.4)}
.dest-card .desc{font-size:.85rem;opacity:.9;display:block;margin-top:4px}
a.dest-card{cursor:pointer}
.dest-1{background:linear-gradient(135deg,#3a7bd5,#2d6cb8)}
.dest-2{background:linear-gradient(135deg,#5a8f6b,#2d6653)}
.dest-3{background:linear-gradient(135deg,#4a6fa5,#1c3d63)}
.dest-4{background:linear-gradient(135deg,#6b9bd5,#2d5fa3)}
.dest-1::before{background-image:url('banner/1.jpeg')}
.dest-2::before{background-image:url('banner/3.jpeg')}
.dest-3::before{background-image:url('banner/osaka.jpeg')}
.dest-4::before{background-image:url('banner/2.jpeg')}

/* ===== About（首页区块） ===== */
.about-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:48px;align-items:center}
.about-text h2{font-size:2rem;color:var(--primary);margin-bottom:18px}
.about-text p{color:var(--text-light);margin-bottom:14px}
.about-points{display:grid;gap:16px}
.point{
  background:var(--white);border-radius:12px;padding:20px 22px;
  box-shadow:0 4px 18px rgba(28,80,152,.08);display:flex;gap:14px;align-items:flex-start;
}
.point .ico{font-size:1.5rem;line-height:1}
.point b{display:block;color:var(--text-dark);margin-bottom:2px}
.point span{font-size:.88rem;color:var(--text-light)}

/* ===== Contact ===== */
.contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.contact-card{
  background:var(--white);border-radius:var(--radius);padding:32px 24px;text-align:center;
  box-shadow:0 4px 18px rgba(28,80,152,.08);transition:transform .25s;
}
.contact-card:hover{transform:translateY(-6px)}
.contact-card .ico{
  width:56px;height:56px;border-radius:50%;margin:0 auto 16px;
  display:flex;align-items:center;justify-content:center;font-size:1.5rem;
  background:linear-gradient(135deg,rgba(28,80,152,.1),rgba(70,172,254,.15));
}
.contact-card b{display:block;margin-bottom:6px}
.contact-card span{font-size:.9rem;color:var(--text-light);display:block}
.contact-card a{color:var(--primary);font-weight:600}
.contact-card a:hover{text-decoration:underline}

/* ===== Footer ===== */
.site-footer{background:var(--primary-dark);color:#fff;padding:56px 0 28px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}
.footer-grid h4{margin-bottom:14px;font-size:1rem}
.footer-grid p,.footer-grid li{font-size:.88rem;opacity:.75;line-height:2}
.footer-grid ul{list-style:none}
.footer-grid a{opacity:.85}
.footer-grid a:hover{opacity:1;text-decoration:underline}
.footer-bottom{border-top:1px solid rgba(255,255,255,.15);padding-top:22px;text-align:center;font-size:.82rem;opacity:.6}

/* ===== 二级页：页头 hero ===== */
.page-hero{
  position:relative;padding:110px 24px 90px;text-align:center;color:#fff;
  background-color:#2d6cb8;
  background-image:linear-gradient(135deg,rgba(15,58,115,.78),rgba(15,58,115,.5)),url('banner/1.jpeg');
  background-size:cover;background-position:center;
}
.page-hero h1{font-size:2.8rem;text-shadow:0 4px 25px rgba(0,0,0,.45)}
.page-hero p{opacity:.88;max-width:620px;margin:14px auto 0;font-size:1.05rem}
.crumb{font-size:.85rem;opacity:.85;margin-top:20px;display:inline-block}
.crumb a{color:#fff;text-decoration:underline}

/* ===== 二级页：正文排版（about / privacy / terms 通用） ===== */
.page-content{max-width:860px;margin:0 auto;padding:70px 24px}
.page-content h2{color:var(--primary);font-size:1.55rem;margin:40px 0 14px}
.page-content h2:first-of-type{margin-top:0}
.page-content p{color:var(--text-light);margin-bottom:14px}
.page-content ul{padding-left:22px;margin-bottom:14px}
.page-content li{color:var(--text-light);margin-bottom:8px}
.page-content .updated{font-size:.85rem;color:var(--text-light);margin-bottom:28px;padding-bottom:18px;border-bottom:1px solid rgba(28,80,152,.12)}
.page-content .lead{font-size:1.15rem;color:var(--text-dark);margin-bottom:22px}
.cta-band{
  margin-top:50px;text-align:center;background:var(--bg);border-radius:var(--radius);padding:44px 24px;
}
.cta-band h3{color:var(--primary);font-size:1.4rem;margin-bottom:10px}
.cta-band p{color:var(--text-light);margin-bottom:22px}
.cta-btn{
  display:inline-block;background:linear-gradient(135deg,var(--primary),var(--primary-light));
  color:#fff;font-weight:700;padding:14px 38px;border-radius:30px;
  transition:transform .2s,box-shadow .2s;
}
.cta-btn:hover{transform:translateY(-2px);box-shadow:0 8px 22px rgba(28,80,152,.35)}

/* ===== 二级页：目的地列表（大卡） ===== */
.city-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}
.city-card{min-height:340px}

/* ===== Responsive ===== */
@media (max-width:900px){
  .main-nav{display:none}
  .hero-content h1{font-size:2.3rem}
  .hero-content h2{font-size:1.15rem}
  .slider-arrow{width:38px;height:38px;font-size:1.2rem}
  .slider-arrow.prev{left:10px}
  .slider-arrow.next{right:10px}
  .dest-grid{grid-template-columns:repeat(2,1fr)}
  .city-grid{grid-template-columns:1fr}
  .about-grid{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  section{padding:64px 0}
  .stats-grid{grid-template-columns:1fr;gap:8px;padding:26px 20px}
  .page-hero{padding:80px 24px 64px}
  .page-hero h1{font-size:2rem}
  .page-content{padding:50px 24px}
}