/* ========== 圣淘沙官网 SEO优化版 样式 ========== */

/* --- Reset & Base --- */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",-apple-system,sans-serif;
  background:#fefcf7;color:#1e2a2e;line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:#006b5e;text-decoration:none}
a:hover{color:#008b78}
ul,ol{list-style:none}
button{font-family:inherit;cursor:pointer;border:none;background:none}

/* --- 可访问性辅助 --- */
.visually-hidden,.sr-only{
  position:absolute!important;width:1px;height:1px;
  padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);
  white-space:nowrap;border:0;
}

/* --- Layout --- */
.container{max-width:1200px;margin:0 auto;padding:0 24px}

/* --- Header --- */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  box-shadow:0 2px 12px rgba(0,0,0,.04);
  border-bottom:1px solid #f0e7da;
}
.header-inner{
  display:flex;justify-content:space-between;align-items:center;
  padding:14px 0;gap:20px;
}
.logo h1{
  font-size:1.6rem;font-weight:800;
  background:linear-gradient(135deg,#006b5e,#00a88f);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  letter-spacing:-.5px;line-height:1.1;
}
.logo p{font-size:.72rem;color:#6c7a6e;margin-top:2px}
.logo{display:block}

/* Nav */
.main-nav ul{display:flex;gap:28px;align-items:center}
.main-nav a{
  font-weight:500;font-size:.95rem;color:#2c3e2f;
  padding:6px 0;position:relative;transition:color .2s;
}
.main-nav a:hover,.main-nav a:focus{color:#00a88f;outline:none}
.main-nav a::after{
  content:'';position:absolute;bottom:0;left:0;right:0;height:2px;
  background:#00a88f;transform:scaleX(0);transition:transform .25s;
}
.main-nav a:hover::after,.main-nav a:focus::after{transform:scaleX(1)}

/* Header Actions */
.header-actions{display:flex;align-items:center;gap:12px}
.btn-primary-sm{
  padding:8px 20px;border-radius:40px;font-weight:600;font-size:.88rem;
  background:#006b5e;color:#fff;transition:all .2s;
}
.btn-primary-sm:hover{background:#008b78;transform:translateY(-1px);color:#fff}

/* Mobile menu toggle */
.menu-toggle{display:none;flex-direction:column;gap:4px;padding:8px}
.menu-toggle span{display:block;width:24px;height:2px;background:#1e2a2e;border-radius:1px}

/* --- Breadcrumb --- */
.breadcrumb{
  font-size:.82rem;color:#6c7a6e;margin-bottom:16px;
}
.breadcrumb a{color:#6c7a6e}
.breadcrumb a:hover{color:#006b5e}

/* --- Hero --- */
.hero{
  background:linear-gradient(107deg,#e9f5ef 0%,#daf1e8 100%);
  border-radius:0 0 48px 48px;
  padding:60px 0 80px;margin-bottom:48px;
}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.hero-content h1{
  font-size:3rem;font-weight:800;line-height:1.15;
  color:#1c4e3f;margin-bottom:20px;
}
.hero-desc{font-size:1.1rem;color:#2d4a3b;margin-bottom:32px;max-width:480px}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;align-items:center;margin-bottom:36px}
.btn-primary{
  display:inline-flex;align-items:center;gap:8px;
  background:#006b5e;color:#fff;padding:14px 32px;border-radius:40px;
  font-weight:600;font-size:1rem;transition:all .25s;
}
.btn-primary:hover{background:#008b78;transform:translateY(-2px);box-shadow:0 6px 20px rgba(0,107,94,.25);color:#fff}
.btn-outline{
  display:inline-flex;align-items:center;
  background:transparent;border:2px solid #006b5e;color:#006b5e;
  padding:12px 28px;border-radius:40px;font-weight:600;font-size:1rem;transition:all .2s;
}
.btn-outline:hover{background:#006b5e;color:#fff}

/* Hero Figure */
.hero-figure{position:relative}
.hero-figure img{
  width:100%;border-radius:32px;
  box-shadow:0 25px 35px -12px rgba(0,0,0,.2);
  aspect-ratio:3/2;object-fit:cover;
  transition:transform .4s;
}
.hero-figure:hover img{transform:scale(1.02)}
.hero-figure figcaption{
  position:absolute;bottom:16px;left:16px;right:16px;
  background:rgba(0,0,0,.55);color:#fff;font-size:.78rem;
  padding:6px 14px;border-radius:8px;backdrop-filter:blur(4px);
}

/* Hero Stats */
.hero-stats{
  display:flex;gap:40px;
  background:rgba(255,255,240,.7);border-radius:48px;
  padding:18px 32px;
}
.hero-stats dt{font-size:1.8rem;font-weight:800;color:#006b5e}
.hero-stats dd{font-size:.82rem;color:#5f7b6e}

/* --- Section通用 --- */
.section{margin:64px 0}
.section-header{margin-bottom:40px;max-width:700px}
.section-header h2{font-size:2rem;font-weight:700;color:#1e3a2f;margin-bottom:8px}
.section-header p{color:#5f7b6e;font-size:1rem}

/* --- Card Grid --- */
.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:28px}
.card{
  background:#fff;border-radius:24px;
  box-shadow:0 8px 24px rgba(0,0,0,.04);
  overflow:hidden;transition:all .3s;border:1px solid #f0eadb;
}
.card:hover{transform:translateY(-6px);box-shadow:0 16px 32px rgba(0,0,0,.1)}
.card a{display:block;color:inherit}
.card figure{overflow:hidden}
.card img{width:100%;height:220px;object-fit:cover;transition:transform .4s}
.card:hover img{transform:scale(1.05)}
.card-body{padding:20px}
.card-body h3{font-size:1.2rem;font-weight:700;margin-bottom:8px;color:#1c4e3f}
.card-body p{color:#4a5b52;font-size:.92rem;margin-bottom:12px}
.link-more{color:#006b5e;font-weight:600;font-size:.9rem}

/* --- Gallery --- */
.gallery{background:#fef7ed;border-radius:48px;padding:56px 24px;margin:56px 0}
.gallery-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:24px;margin-top:32px}
.gallery-item{border-radius:20px;overflow:hidden;box-shadow:0 8px 20px rgba(0,0,0,.06)}
.gallery-item img{width:100%;height:240px;object-fit:cover;transition:transform .4s}
.gallery-item:hover img{transform:scale(1.05)}
.gallery-item figcaption{
  padding:12px;text-align:center;background:#fff;font-weight:500;font-size:.92rem;
}

/* --- Highlight Banner --- */
.highlight-banner{
  background:linear-gradient(120deg,#fdf8ed,#fff6e8);
  border-radius:32px;padding:48px 40px;
  display:flex;flex-wrap:wrap;gap:40px;align-items:flex-start;
}
.check-list{list-style:none;flex:1;min-width:280px}
.check-list li{
  padding:10px 0;border-bottom:1px solid rgba(0,107,94,.08);
  font-size:.95rem;color:#2d4a3b;
}
.check-list li:last-child{border:none}
.check-list strong{color:#1c4e3f}

.badge-group{display:flex;flex-direction:column;gap:10px;min-width:220px}
.badge{
  background:#fff;border-radius:40px;padding:12px 20px;
  display:flex;align-items:center;gap:10px;
  box-shadow:0 2px 8px rgba(0,0,0,.04);font-size:.92rem;color:#2c3e2f;
}
.badge-icon{font-size:1.2rem}

/* --- Transport --- */
.transport-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px;margin-bottom:32px}
.transport-card{
  background:#f3faf6;border-radius:20px;padding:24px;
  border-left:4px solid #00a88f;
}
.transport-card h3{font-size:1.1rem;color:#1c4e3f;margin-bottom:8px}
.transport-card p{font-size:.9rem;color:#4a5b52}

.info-box{
  background:#f3f2ea;border-radius:24px;padding:28px;
  display:flex;flex-wrap:wrap;gap:24px;align-items:flex-start;
}
.info-box h3{font-size:1.1rem;color:#1c4e3f;margin-bottom:8px;width:100%}
.info-box address{font-style:normal;font-size:.92rem;color:#4a5b52;flex:1;min-width:200px}
.info-box p{flex:1;min-width:200px;font-size:.92rem;color:#4a5b52}

/* --- FAQ --- */
.faq-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:16px}
.faq-item{
  background:#fff;border:1px solid #f0eadb;border-radius:16px;
  padding:0;overflow:hidden;transition:box-shadow .2s;
}
.faq-item[open]{box-shadow:0 4px 16px rgba(0,107,94,.08)}
.faq-item summary{
  padding:18px 20px;font-weight:600;font-size:1rem;color:#1c4e3f;
  cursor:pointer;list-style:none;position:relative;padding-right:40px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:'+';position:absolute;right:20px;top:50%;transform:translateY(-50%);
  font-size:1.4rem;color:#00a88f;font-weight:300;
}
.faq-item[open] summary::after{content:'−'}
.faq-item p{padding:0 20px 18px;color:#4a5b52;font-size:.92rem}

/* --- Newsletter --- */
.newsletter{
  background:linear-gradient(135deg,#1e3a2f,#0a2a22);
  border-radius:48px;padding:56px 32px;text-align:center;color:#fff;margin:72px 0;
}
.newsletter h2{font-size:1.8rem;margin-bottom:12px}
.newsletter p{color:#cbdcd3;margin-bottom:28px}
.subscribe-form{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;max-width:500px;margin:0 auto}
.subscribe-form input{
  flex:1;min-width:220px;padding:14px 24px;border-radius:60px;
  border:none;font-size:1rem;outline:none;
}
.subscribe-form button{
  padding:14px 32px;border-radius:60px;font-weight:700;font-size:1rem;
  background:#f5b042;color:#2c3e2f;transition:all .2s;
}
.subscribe-form button:hover{background:#e09d2b;color:#fff}
.newsletter .disclaimer{font-size:.78rem;color:#8aa89c;margin-top:16px}
.newsletter .disclaimer a{color:#ffd966}

/* --- Footer --- */
.site-footer{
  background:#0a2a22;color:#cbdcd3;
  padding:56px 0 24px;border-radius:32px 32px 0 0;
}
.footer-grid{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));
  gap:40px;margin-bottom:40px;
}
.site-footer h4{color:#fff;font-size:1rem;margin-bottom:14px}
.site-footer ul li{padding:4px 0}
.site-footer a{color:#8aa89c;font-size:.88rem;transition:color .2s}
.site-footer a:hover{color:#ffd966}
.social-links{display:flex;gap:12px;flex-wrap:wrap}
.social-links a{
  display:inline-block;padding:6px 12px;background:rgba(255,255,255,.06);
  border-radius:6px;color:#ffd966;font-size:.85rem;
}
.social-links a:hover{background:rgba(255,217,102,.15);color:#fff}

.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;
  flex-wrap:wrap;gap:12px;
  border-top:1px solid #2c5545;padding-top:24px;
  font-size:.82rem;color:#6b8e80;
}
.footer-legal{display:flex;gap:16px}
.footer-legal a{color:#6b8e80}
.footer-legal a:hover{color:#ffd966}

/* --- Back to Top --- */
.back-to-top{
  position:fixed;bottom:30px;right:30px;z-index:999;
  width:44px;height:44px;border-radius:50%;
  background:#006b5e;color:#fff;font-size:1.4rem;
  display:flex;align-items:center;justify-content:center;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:all .3s;box-shadow:0 4px 12px rgba(0,107,94,.3);
}
.back-to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.back-to-top:hover{background:#008b78;transform:translateY(-2px)}

/* --- Responsive --- */
@media(max-width:900px){
  .header-inner{flex-wrap:wrap}
  .main-nav{display:none;width:100%;order:3}
  .main-nav.open{display:block}
  .main-nav ul{flex-direction:column;gap:12px;padding:16px 0}
  .menu-toggle{display:flex}
  .header-actions{margin-left:auto}
}
@media(max-width:768px){
  .hero-grid{grid-template-columns:1fr;text-align:left}
  .hero-content h1{font-size:2.2rem}
  .hero-stats{gap:24px;padding:14px 20px}
  .hero-stats dt{font-size:1.4rem}
  .highlight-banner{padding:32px 24px}
  .newsletter{padding:40px 20px;margin:48px 0}
  .footer-bottom{flex-direction:column;text-align:center}
}
@media(max-width:480px){
  .container{padding:0 16px}
  .hero{padding:40px 0 56px}
  .hero-content h1{font-size:1.8rem}
  .btn-primary,.btn-outline{padding:12px 22px;font-size:.9rem}
  .section-header h2{font-size:1.5rem}
}