:root {
  --navy:#12384a;
  --blue:#1f6f8b;
  --teal:#2c8c7b;
  --sand:#f5efe5;
  --cream:#fbfaf7;
  --ink:#20323a;
  --muted:#6d7a80;
  --white:#ffffff;
  --line:#dbe5e7;
  --shadow:0 18px 50px rgba(24,58,72,.12);
  --radius:24px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans TC","PingFang TC","Microsoft JhengHei",system-ui,sans-serif;
  color:var(--ink);
  background:var(--cream);
  line-height:1.7;
}
a{text-decoration:none;color:inherit}
button,select{font:inherit}
.container{width:min(1160px,calc(100% - 40px));margin:auto}
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(12px);
  border-bottom:1px solid rgba(0,0,0,.05)
}
.nav-wrap{height:78px;display:flex;align-items:center;gap:24px}
.brand{display:flex;align-items:center;gap:10px;margin-right:auto}
.brand-mark{
  display:grid;place-items:center;
  width:46px;height:46px;border-radius:50%;
  background:linear-gradient(135deg,var(--teal),var(--blue));
  color:#fff;font-weight:800
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:18px}
.brand-text small{font-size:10px;letter-spacing:1.4px;color:var(--muted)}
.main-nav{display:flex;gap:22px;font-size:14px}
.main-nav a:hover{color:var(--blue)}
.line-btn,.btn{display:inline-flex;align-items:center;justify-content:center;border-radius:999px;font-weight:700;transition:.2s}
.line-btn{padding:10px 18px;background:#22b65b;color:#fff}
.menu-btn{display:none;border:0;background:none;font-size:26px}
.hero{
  min-height:760px;position:relative;color:#fff;
  display:flex;align-items:center;
  background:
    radial-gradient(circle at 70% 20%,rgba(255,255,255,.18),transparent 22%),
    linear-gradient(120deg,#0f546b 0%,#1d7a79 45%,#6aa996 100%);
  overflow:hidden
}
.hero:after{
  content:"";position:absolute;right:-8%;bottom:-20%;
  width:520px;height:520px;border-radius:44% 56% 58% 42%;
  background:rgba(255,255,255,.10);transform:rotate(18deg)
}
.hero-overlay{
  position:absolute;inset:0;
  background:
    linear-gradient(to top,rgba(10,41,54,.34),transparent 45%),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='700' height='300'%3E%3Cpath d='M0 220 C140 120 260 250 390 150 C500 65 590 180 700 80 V300 H0Z' fill='%23ffffff' fill-opacity='.08'/%3E%3C/svg%3E") bottom/cover no-repeat;
}
.hero-content{position:relative;z-index:2;padding-top:40px}
.eyebrow{font-size:13px;letter-spacing:2px;text-transform:uppercase;font-weight:800;opacity:.9}
.eyebrow.dark{color:var(--teal)}
h1{font-size:clamp(48px,7vw,82px);line-height:1.05;margin:12px 0 18px;letter-spacing:-2px}
h2{font-size:clamp(32px,4vw,48px);line-height:1.2;margin:8px 0 16px}
h3{font-size:22px;line-height:1.35;margin:0 0 10px}
.hero-sub{font-size:20px;max-width:660px;opacity:.95}
.hero-actions{display:flex;gap:12px;margin:30px 0 34px}
.btn{padding:14px 22px;border:0;cursor:pointer}
.btn.primary{background:#ffb75e;color:#163341}
.btn.ghost{border:1px solid rgba(255,255,255,.55);color:#fff;background:rgba(255,255,255,.08)}
.btn.light{background:#fff;color:var(--navy)}
.btn.ghost-dark{border:1px solid #8fa7b1;color:var(--navy);padding:14px 22px}
.search-card{
  max-width:980px;background:#fff;color:var(--ink);
  padding:16px;border-radius:20px;display:grid;
  grid-template-columns:1.2fr 1fr 1fr auto;gap:12px;
  box-shadow:var(--shadow)
}
.search-card label{display:flex;flex-direction:column;gap:5px}
.search-card span{font-size:12px;color:var(--muted)}
.search-card select{border:0;background:#f4f7f7;padding:12px;border-radius:12px;color:var(--ink);min-width:0}
.section{padding:96px 0}
.section.soft{background:#f1f5f3}
.section-heading{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:34px}
.section-heading>p{max-width:500px;color:var(--muted)}
.region-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.region-card{
  min-height:210px;border-radius:22px;padding:22px;color:#fff;
  display:flex;flex-direction:column;justify-content:flex-end;
  box-shadow:var(--shadow);position:relative;overflow:hidden
}
.region-card:before{
  content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(0,0,0,.35),transparent 60%)
}
.region-card span,.region-card small{position:relative}
.region-card span{font-size:28px;font-weight:800}
.region-card small{opacity:.9}
.north{background:linear-gradient(135deg,#6b8fa7,#315f78)}
.central{background:linear-gradient(135deg,#7ca16d,#466c4b)}
.south{background:linear-gradient(135deg,#e8a15c,#c56a45)}
.east{background:linear-gradient(135deg,#4d9fa8,#256b77)}
.islands{background:linear-gradient(135deg,#60b9b4,#2c7e8f)}
.tour-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.tour-card{background:#fff;border-radius:22px;overflow:hidden;box-shadow:var(--shadow)}
.tour-image{height:220px;position:relative}
.green-island{background:linear-gradient(135deg,#3b9db0,#82d0bd)}
.taitung{background:linear-gradient(135deg,#87a86e,#d2b36b)}
.lanyu{background:linear-gradient(135deg,#2d7290,#5c9f9c)}
.badge{position:absolute;top:16px;left:16px;background:#fff;padding:7px 12px;border-radius:999px;font-size:12px;font-weight:800}
.tour-body{padding:22px}
.tour-body p{color:var(--muted)}
.tour-meta{display:flex;gap:12px;font-size:13px;color:var(--teal);margin:14px 0}
.tour-body a{font-weight:800;color:var(--blue)}
.map-section{background:var(--sand)}
.map-layout{display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:50px}
.map-copy{color:var(--muted);max-width:560px}
.map-pills{display:flex;flex-wrap:wrap;gap:10px;margin:24px 0}
.map-pills button,.theme-grid button{
  border:1px solid var(--line);background:#fff;border-radius:999px;
  padding:11px 16px;cursor:pointer
}
.map-pills button:hover,.theme-grid button:hover{border-color:var(--teal);color:var(--teal)}
.map-result{font-weight:700;color:var(--blue)}
.taiwan-map{height:500px;position:relative;display:grid;place-items:center}
.island-shape{
  width:185px;height:410px;border-radius:48% 52% 58% 42% / 22% 22% 78% 78%;
  background:linear-gradient(160deg,#8fb28a,#4a8f7c 55%,#337f7f);
  transform:rotate(9deg);
  box-shadow:inset 18px -16px 0 rgba(255,255,255,.08),0 30px 70px rgba(47,93,85,.18)
}
.pin{
  position:absolute;background:#fff;padding:6px 10px;border-radius:999px;
  font-size:12px;font-weight:800;box-shadow:0 8px 25px rgba(0,0,0,.12)
}
.p1{top:88px;left:58%}.p2{top:205px;left:34%}.p3{top:280px;left:34%}.p4{bottom:74px;left:40%}.p5{top:190px;right:23%}.p6{bottom:110px;right:26%}
.theme-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.theme-grid button{padding:20px;border-radius:18px;text-align:left;font-weight:700}
.custom{padding-top:0}
.custom-card{
  background:linear-gradient(120deg,var(--navy),var(--blue));
  color:#fff;border-radius:30px;padding:46px 52px;
  display:flex;justify-content:space-between;align-items:center;gap:30px
}
.custom-card p{max-width:720px}
.guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.guide-grid article{background:#fff;border:1px solid var(--line);border-radius:20px;padding:24px}
.guide-grid article span{font-size:12px;color:var(--teal);font-weight:800}
.guide-grid article p{color:var(--muted)}
.about-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:50px}
.feature-list{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.feature-list div{border:1px solid var(--line);border-radius:18px;padding:20px}
.feature-list strong,.feature-list span{display:block}
.feature-list span{color:var(--muted);font-size:14px;margin-top:7px}
.contact{background:#0f2d3a;color:#fff}
.contact-card{display:flex;justify-content:space-between;align-items:center;gap:30px}
.contact-actions{display:flex;gap:12px;flex-wrap:wrap}
.site-footer{background:#081d26;color:#c8d5da;padding:36px 0}
.footer-grid{display:flex;justify-content:space-between;gap:30px}
.footer-grid p{margin:6px 0}
@media (max-width: 960px){
  .main-nav,.line-btn{display:none}
  .menu-btn{display:block}
  .main-nav.open{
    display:flex;position:absolute;top:78px;left:0;right:0;
    background:#fff;padding:20px;flex-direction:column;border-bottom:1px solid var(--line)
  }
  .search-card{grid-template-columns:1fr 1fr}
  .search-btn{grid-column:1/-1}
  .region-grid{grid-template-columns:repeat(2,1fr)}
  .tour-grid,.guide-grid{grid-template-columns:1fr}
  .map-layout,.about-grid{grid-template-columns:1fr}
  .theme-grid{grid-template-columns:repeat(2,1fr)}
  .custom-card,.contact-card,.section-heading,.footer-grid{align-items:flex-start;flex-direction:column}
}
@media (max-width: 600px){
  .container{width:min(100% - 24px,1160px)}
  .hero{min-height:800px}
  h1{font-size:48px}
  .hero-sub{font-size:17px}
  .hero-actions{flex-direction:column}
  .search-card{grid-template-columns:1fr}
  .search-btn{grid-column:auto}
  .section{padding:70px 0}
  .region-grid,.theme-grid,.feature-list{grid-template-columns:1fr}
  .region-card{min-height:160px}
  .custom-card{padding:32px 24px}
  .taiwan-map{height:430px}
}

/* ===== V2 Brand Refresh ===== */
:root{
  --navy:#123b55;
  --blue:#187fa8;
  --teal:#229c91;
  --gold:#f4b942;
  --forest:#4f8f63;
}
.brand{gap:12px}
.brand-logo{
  width:56px;height:56px;object-fit:cover;border-radius:50%;
  box-shadow:0 6px 20px rgba(19,78,103,.18);
  border:2px solid rgba(255,255,255,.9)
}
.brand-mark{display:none}
.site-header{box-shadow:0 4px 22px rgba(18,59,85,.05)}
.hero{
  background:
    radial-gradient(circle at 72% 20%,rgba(244,185,66,.18),transparent 22%),
    linear-gradient(120deg,#0f536e 0%,#238f91 48%,#70af8d 100%);
}
.btn.primary{background:linear-gradient(135deg,#f7c95c,#f0a83c);color:#14384a}
.focus-strip{background:#fff;border-top:1px solid rgba(0,0,0,.04);border-bottom:1px solid rgba(0,0,0,.05)}
.focus-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0}
.focus-grid a{padding:24px 28px;display:flex;flex-direction:column;gap:2px;border-right:1px solid var(--line)}
.focus-grid a:last-child{border-right:0}
.focus-grid strong{font-size:22px;color:var(--navy)}
.focus-grid span{font-size:13px;color:var(--muted)}
.focus-grid a:hover strong{color:var(--teal)}
.tour-card{transition:transform .2s ease, box-shadow .2s ease}
.tour-card:hover{transform:translateY(-5px);box-shadow:0 22px 60px rgba(24,58,72,.16)}
.region-card{transition:transform .2s ease}
.region-card:hover{transform:translateY(-4px)}
@media (max-width:720px){
  .brand-logo{width:46px;height:46px}
  .focus-grid{grid-template-columns:1fr}
  .focus-grid a{border-right:0;border-bottom:1px solid var(--line)}
}

/* ===== V3 Destination & Inquiry Pages ===== */
.small-hero{min-height:560px}
.destination-hero h1{max-width:800px}
.destination-summary{display:grid;grid-template-columns:1fr 1.2fr;gap:50px;align-items:start}
.highlight-list{margin:0;padding:0;list-style:none;display:grid;gap:14px}
.highlight-list li{background:#fff;border:1px solid var(--line);border-radius:16px;padding:16px 18px}
.inquiry-wrap{padding-top:110px}
.inquiry-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:50px;align-items:start}
.dark-title{color:var(--navy);font-size:clamp(38px,5vw,62px);margin-top:10px}
.info-card{margin-top:26px;background:var(--sand);border-radius:20px;padding:22px}
.inquiry-form{background:#fff;border:1px solid var(--line);border-radius:24px;padding:26px;box-shadow:var(--shadow);display:grid;gap:16px}
.inquiry-form label{display:grid;gap:7px;font-weight:700}
.inquiry-form input,.inquiry-form select,.inquiry-form textarea{width:100%;padding:13px 14px;border:1px solid var(--line);border-radius:12px;background:#fbfdfd;color:var(--ink)}
.result-box{white-space:pre-wrap;background:#f4f7f7;border-radius:14px;padding:16px;color:var(--navy);min-height:150px}
@media(max-width:800px){
  .destination-summary,.inquiry-grid{grid-template-columns:1fr}
}

/* ===== V4 LINE CTA ===== */
.floating-line{
  position:fixed;right:18px;bottom:18px;z-index:99;
  display:flex;align-items:center;gap:9px;
  background:#06C755;color:#fff;padding:12px 16px;
  border-radius:999px;box-shadow:0 12px 30px rgba(0,0,0,.18);
  font-weight:800;transition:transform .2s ease,box-shadow .2s ease;
}
.floating-line:hover{transform:translateY(-2px);box-shadow:0 16px 36px rgba(0,0,0,.22)}
.floating-line-icon{
  display:grid;place-items:center;width:34px;height:34px;border-radius:50%;
  background:#fff;color:#06C755;font-size:11px;font-weight:900
}
@media(max-width:600px){
  .floating-line{right:12px;bottom:12px;padding:10px 13px}
  .floating-line-icon{width:30px;height:30px}
}