:root{
  --bg:#f6fbff;
  --bg2:#eef7ff;
  --card:rgba(255,255,255,.86);
  --card2:rgba(255,255,255,.92);
  --stroke:rgba(6,30,52,.12);
  --stroke2:rgba(6,30,52,.18);

  --text:#071427;
  --muted:rgba(7,20,39,.76);
  --muted2:rgba(7,20,39,.60);

  /* HK-like: clean blue + cyan */
  --c1:#00c2ff;
  --c2:#2453ff;
  --c3:#00d084;

  --shadow:0 14px 46px rgba(3,18,41,.14);
  --shadow2:0 10px 26px rgba(3,18,41,.10);
  --radius:18px;
  --radius2:14px;

  --maxW:560px;

  --safeTop: env(safe-area-inset-top);
  --safeBottom: env(safe-area-inset-bottom);
}

*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{height:100%}
body{
  font-family: system-ui,-apple-system,"Segoe UI",Roboto,Arial,"PingFang HK","Noto Sans TC","Microsoft JhengHei",sans-serif;
  color:var(--text);
  line-height:1.7;
  min-height:100vh;
  background: linear-gradient(180deg,var(--bg),var(--bg2));
  padding: 14px 12px calc(96px + var(--safeBottom));
  overflow-x:hidden;
  position:relative;
}

/* Aurora background */
body::before{
  content:"";
  position:fixed;
  inset:-20vh -20vw;
  z-index:-2;
  background:
    radial-gradient(820px 420px at 18% 10%, rgba(0,194,255,.20), transparent 60%),
    radial-gradient(920px 520px at 86% 16%, rgba(36,83,255,.16), transparent 62%),
    radial-gradient(820px 460px at 28% 92%, rgba(0,208,132,.12), transparent 60%),
    radial-gradient(720px 380px at 88% 90%, rgba(0,194,255,.10), transparent 60%);
  filter: blur(10px);
}
/* Grid overlay */
body::after{
  content:"";
  position:fixed;
  inset:0;
  z-index:-1;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(6,30,52,.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(6,30,52,.06) 1px, transparent 1px);
  background-size: 28px 28px;
  mask-image: radial-gradient(60% 55% at 50% 18%, #000 0%, transparent 70%);
}

img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}

.container{max-width:var(--maxW);margin:0 auto;padding:0 14px}

/* Main shell */
.book-container{
  max-width:var(--maxW);
  margin:0 auto;
  background:var(--card2);
  border:1px solid var(--stroke);
  border-radius: 6px 20px 20px 6px;
  box-shadow:
    -3px 0 0 rgba(6,30,52,.10),
    -6px 0 0 rgba(6,30,52,.06),
    -9px 0 0 rgba(6,30,52,.10),
    0 18px 50px rgba(3,18,41,.12);
  overflow:hidden;
  position:relative;
}
.book-container::before{
  content:"";
  position:absolute;
  top:0;left:0;
  width:12px;height:100%;
  background: linear-gradient(90deg, rgba(0,0,0,.06), transparent);
}

/* Topbar */
.topbar{
  position:sticky;
  top:0;
  z-index:10;
  background: rgba(255,255,255,.86);
  border-bottom:1px solid var(--stroke);
}
.topbar-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding: 12px 0;
}
.brand{display:flex;align-items:center;gap:10px;min-width:0}
.brand-mark{
  width:38px;height:38px;
  border-radius:14px;
  display:grid;place-items:center;
  background: linear-gradient(135deg, var(--c2), var(--c1));
  color:#fff;
  font-weight:900;
  letter-spacing:.5px;
  box-shadow: 0 10px 26px rgba(36,83,255,.20);
}
.brand-text{display:flex;flex-direction:column;min-width:0}
.brand-name{font-weight:900;font-size:14px;line-height:1.1;color:rgba(7,20,39,.95)}
.brand-sub{font-size:12px;color:var(--muted2);margin-top:3px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:240px}

.topbar-actions{display:flex;align-items:center;gap:10px}
.topbar-link,.topbar-cta{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 12px;
  border-radius:999px;
  font-weight:900;
  font-size:13px;
  line-height:1;
}
.topbar-link{
  background: rgba(255,255,255,.70);
  border:1px solid var(--stroke2);
  color: rgba(7,20,39,.92);
}
.topbar-cta{
  background: linear-gradient(135deg, var(--c2), var(--c1));
  border:0;
  color:#fff;
  box-shadow: 0 10px 26px rgba(36,83,255,.18);
}
.topbar-link:active,.topbar-cta:active{transform:scale(.98)}

/* Icons */
.icon{width:18px;height:18px;display:inline-block;vertical-align:-0.18em;flex:0 0 auto}

/* Hero */
.hero{
  padding: 14px 0 6px;
}
.hero-overlay{display:none}
.hero-shapes{display:none}
.hero-inner{
  display:grid;
  grid-template-columns: 1fr;
  gap: 12px;
  padding-bottom: 10px;
}
.hero-content{
  margin: 0 14px;
  padding: 16px 14px;
  border-radius: 18px;
  border: 1px solid rgba(255,255,255,.22);
  background:
    linear-gradient(135deg, rgba(7,20,39,.86), rgba(7,20,39,.56) 55%, rgba(36,83,255,.40) 100%),
    url('../images/hero-bg.jpg') center/cover no-repeat;
  color:#fff;
  box-shadow: var(--shadow);
  position:relative;
  overflow:hidden;
}
.hero-content::after{
  content:"";
  position:absolute;
  inset:0;
  background:
    radial-gradient(700px 380px at 10% 0%, rgba(0,194,255,.25), transparent 60%),
    radial-gradient(700px 380px at 90% 10%, rgba(0,208,132,.16), transparent 60%),
    linear-gradient(180deg, rgba(0,0,0,.15), rgba(0,0,0,.38));
  pointer-events:none;
}
.hero-content > *{position:relative;z-index:1}

.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding: 10px 12px;
  border-radius: 999px;
  background: rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.22);
  font-weight:900;
  font-size:12px;
}
.hero-title{
  margin: 14px 0 10px;
  font-size: 30px;
  line-height:1.15;
  font-weight:950;
  letter-spacing:-.4px;
}
.highlight{
  background: linear-gradient(90deg, #a6e7ff 0%, #ffffff 35%, #b8ffd9 100%);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-desc{font-size:13.8px;color:rgba(255,255,255,.82);margin:0 0 14px;line-height:1.8}

.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin: 10px 0 14px}
.stat{
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.20);
  border-radius: 14px;
  padding: 10px 10px;
}
.stat-num{font-weight:950;color:#fff;font-size:14.5px;letter-spacing:-.2px}
.stat-label{font-size:12px;color:rgba(255,255,255,.74);margin-top:4px}
.star{color:#ffe08a;font-weight:900}

.hero-cta-row{display:grid;gap:10px}

.btn-icon{width:22px;height:22px;border-radius:8px;background:#fff;flex:0 0 auto}

.cta-button{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  width:100%;
  padding: 15px 16px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--c2), var(--c1));
  color:#fff;
  font-size: 15px;
  font-weight: 950;
  box-shadow: 0 10px 26px rgba(36,83,255,.20);
  border: 0;
}
.cta-button:active{transform:scale(.98)}
.cta-button.secondary{
  background: rgba(255,255,255,.18);
  border: 1px solid rgba(255,255,255,.26);
  box-shadow:none;
}
.ghost-link{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  width:100%;
  padding: 14px 16px;
  border-radius: 14px;
  background: rgba(255,255,255,.10);
  border: 1px solid rgba(255,255,255,.22);
  color:#fff;
  font-weight:900;
}

.trust-badges{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top: 12px;
  color: rgba(255,255,255,.86);
  font-weight:800;
  font-size:12px;
}
.trust-badges span{
  display:inline-flex;align-items:center;gap:8px;
  padding: 8px 10px;
  border-radius: 999px;
  background: rgba(255,255,255,.10);
  border: 1px solid rgba(255,255,255,.18);
}
.hero-footnote{margin-top: 12px;font-size:12px;color:rgba(255,255,255,.74);line-height:1.7}

.hero-card{
  margin: 0 14px 14px;
  padding: 14px 14px;
  border-radius: 18px;
  background: rgba(255,255,255,.72);
  border: 1px solid rgba(6,30,52,.12);
  box-shadow: var(--shadow2);
}
.card-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.card-title{display:flex;align-items:center;gap:8px;font-weight:950;color:rgba(7,20,39,.92)}
.card-tag{
  font-size:11px;
  font-weight:900;
  color: rgba(7,20,39,.72);
  background: rgba(6,30,52,.06);
  border: 1px solid rgba(6,30,52,.10);
  padding: 6px 10px;
  border-radius: 999px;
}
.flow{list-style:none;margin: 12px 0 12px;padding:0;display:grid;gap:10px}
.flow li{display:flex;gap:10px;align-items:flex-start}
.flow-dot{
  width:26px;height:26px;border-radius:10px;
  display:grid;place-items:center;
  font-weight:950;
  color: rgba(36,83,255,.95);
  background: rgba(36,83,255,.12);
  border:1px solid rgba(36,83,255,.18);
  flex:0 0 auto;
}
.flow-text{color:var(--muted);font-weight:800;font-size:13px;line-height:1.6}
.card-note{display:flex;gap:10px;align-items:flex-start;margin-top:12px;color:var(--muted2);font-size:12.4px}

/* Sections */
.section{padding: 14px 0}
.section-alt{background: rgba(255,255,255,.40);border-top:1px solid rgba(6,30,52,.08);border-bottom:1px solid rgba(6,30,52,.08)}
.section-head{padding: 0 14px 12px}
.section-head h2{font-size:18px;font-weight:950;letter-spacing:-.2px;color:rgba(7,20,39,.92)}
.section-head p{margin-top:8px;font-size:13px;color:var(--muted2);line-height:1.75}

.center{padding: 0 14px 14px}

/* Car grid */
.car-grid{display:grid;gap:12px;padding: 0 14px}
.car-card{
  border-radius: 18px;
  background: rgba(255,255,255,.74);
  border: 1px solid rgba(6,30,52,.12);
  box-shadow: var(--shadow2);
  overflow:hidden;
}
.car-img{aspect-ratio: 16/10;background: rgba(6,30,52,.04)}
.car-img img{width:100%;height:100%;object-fit:cover}
.car-body{padding: 12px 12px 14px}
.car-body h3{font-size:15px;font-weight:950;color:rgba(7,20,39,.92)}
.car-price{margin-top:6px;font-weight:900;color:rgba(7,20,39,.78)}
.car-price span{color:rgba(36,83,255,.95)}
.car-desc{margin-top:6px;color:var(--muted2);font-size:13px}

/* Benefits */
.benefits{display:grid;gap:12px;padding: 0 14px}
.benefit{
  display:grid;
  grid-template-columns: 46px 1fr;
  gap:12px;
  align-items:start;
  padding: 14px 14px;
  border-radius: 18px;
  background: rgba(255,255,255,.74);
  border: 1px solid rgba(6,30,52,.12);
  box-shadow: var(--shadow2);
}
.benefit-icon{
  width:46px;height:46px;border-radius: 16px;
  display:flex;align-items:center;justify-content:center;
  background: linear-gradient(135deg, rgba(0,194,255,.22), rgba(36,83,255,.18));
  border: 1px solid rgba(6,30,52,.10);
  color: rgba(7,20,39,.88);
}
.benefit h3{font-size:14.6px;font-weight:950;color:rgba(7,20,39,.92);margin-top:2px}
/* Ensure title/desc stay in the text column on mobile (avoid wrapping in icon column) */
.benefit h3,
.benefit p{grid-column: 2;}
.benefit p{margin-top:4px;font-size:13px;color:var(--muted2);line-height:1.7}

/* Steps */
.steps{display:grid;gap:12px;padding: 0 14px}
.step{
  display:grid;
  grid-template-columns: 38px 1fr;
  gap:12px;
  padding: 14px;
  border-radius: 18px;
  background: rgba(255,255,255,.74);
  border: 1px solid rgba(6,30,52,.12);
  box-shadow: var(--shadow2);
}
.step-num{
  width:38px;height:38px;border-radius: 14px;
  display:grid;place-items:center;
  font-weight:950;
  color:#fff;
  background: linear-gradient(135deg, var(--c2), var(--c1));
  box-shadow: 0 10px 26px rgba(36,83,255,.18);
}
.step-body h3{font-size:14.6px;font-weight:950;color:rgba(7,20,39,.92)}
.step-body p{margin-top:6px;color:var(--muted2);font-size:13px;line-height:1.7}

/* Notice */
.section-notice{background: rgba(255,255,255,.46)}
.notice-box{
  margin: 0 14px;
  padding: 16px 14px;
  border-radius: 18px;
  background: rgba(255,255,255,.76);
  border: 1px dashed rgba(6,30,52,.20);
  box-shadow: var(--shadow2);
}
.notice-box h2{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:950;color:rgba(7,20,39,.92)}
.notice-box ul{margin-top:10px;padding-left:18px;display:grid;gap:10px}
.notice-box li{color:var(--muted2);font-size:13px;line-height:1.75}
.notice-box strong{color:rgba(7,20,39,.92)}
.notice-box .cta-button{margin-top:12px}

/* FAQ */
.faq{padding: 0 14px}
.faq-item{
  background: rgba(255,255,255,.74);
  border: 1px solid rgba(6,30,52,.12);
  box-shadow: var(--shadow2);
  border-radius: 18px;
  padding: 12px 14px;
  margin-bottom: 10px;
}
.faq-item summary{cursor:pointer;font-weight:950;color:rgba(7,20,39,.92);font-size:14px}
.faq-body{margin-top:10px;color:var(--muted2);font-size:13px;line-height:1.75}

/* Footer */
.footer{
  padding: 20px 0 22px;
  background: rgba(255,255,255,.62);
  border-top:1px solid rgba(6,30,52,.10);
}
.footer-inner{display:grid;gap:12px;padding: 0 14px}
.footer-brand{display:flex;gap:10px;align-items:center}
.footer-title{font-weight:950;color:rgba(7,20,39,.92);font-size:14px}
.footer-sub{font-size:12px;color:var(--muted2);margin-top:3px}
.footer-meta{color:var(--muted2);font-size:12.4px;line-height:1.75}
.footer-links{display:flex;gap:10px;flex-wrap:wrap;margin-top:8px;font-weight:900}
.footer-links span{color:rgba(6,30,52,.35)}
.footer-copy{margin-top:10px;color:rgba(7,20,39,.55);font-size:11px}

/* Sticky CTA bar */
.sticky-cta{
  position:fixed;
  left:0;right:0;bottom:0;
  background: rgba(255,255,255,.92);
  border-top:1px solid rgba(6,30,52,.10);
  box-shadow: 0 -6px 22px rgba(3,18,41,.10);
  padding: 12px 12px calc(12px + var(--safeBottom));
  z-index:9999;
}
.sticky-cta-inner{
  max-width: var(--maxW);
  margin: 0 auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 12px;
}
.sticky-text{min-width:0}
.sticky-title{font-weight:950;color:rgba(7,20,39,.92);font-size:13px}
.sticky-sub{margin-top:2px;color:rgba(7,20,39,.60);font-size:11.5px}
.sticky-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding: 12px 14px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--c2), var(--c1));
  color:#fff;
  font-weight:950;
  font-size:13px;
  box-shadow: 0 10px 26px rgba(36,83,255,.18);
  flex:0 0 auto;
}
.sticky-btn:active{transform:scale(.98)}

/* Desktop tweaks */
@media (min-width: 860px){
  :root{--maxW: 960px;}
  body{padding: 18px 16px calc(96px + var(--safeBottom));}
  .container{max-width:var(--maxW);padding:0 22px}
  .book-container{max-width:var(--maxW)}
  .hero-inner{grid-template-columns: 1.15fr .85fr; align-items:stretch}
  .hero-content, .hero-card{margin: 0 22px}
  .section-head, .center, .car-grid, .benefits, .steps, .faq{padding-left:22px;padding-right:22px}
  .car-grid{grid-template-columns: repeat(2, 1fr)}
  .benefits{grid-template-columns: repeat(3, 1fr)}
  .benefit{grid-template-columns: 1fr;}
  .benefit-icon{width:52px;height:52px;border-radius:18px}
}

/* Legal pages */
.muted{color:var(--muted2)}
.legal{padding: 14px 0 20px}
.legal h1{font-size:20px;font-weight:950;color:rgba(7,20,39,.92);margin: 6px 0 8px}
.legal p{color:var(--muted2);font-size:13px;line-height:1.8}
.legal-section{
  margin-top: 12px;
  padding: 14px 14px;
  border-radius: 18px;
  background: rgba(255,255,255,.74);
  border: 1px solid rgba(6,30,52,.12);
  box-shadow: var(--shadow2);
}
.legal-section h2{font-size:14.6px;font-weight:950;color:rgba(7,20,39,.92);margin-bottom:8px}
.legal-section ul{padding-left: 18px;display:grid;gap:10px}
.legal-section li{color:var(--muted2);font-size:13px;line-height:1.75}
.legal-section strong{color:rgba(7,20,39,.92)}
.legal-back{margin-top: 14px}

/* =========================
   HK Clean Pro (V10)
   ========================= */
:root{
  --bg:#f5f7fb;
  --bg2:#ffffff;
  --card:#ffffff;
  --card2:#ffffff;
  --stroke:rgba(15,23,42,.10);
  --stroke2:rgba(15,23,42,.14);

  --text:#0b1220;
  --muted:rgba(11,18,32,.70);
  --muted2:rgba(11,18,32,.56);

  /* HK Clean Pro: deep blue */
  --c1:#2b7bff;
  --c2:#0b5fff;
  --c3:#00b86b;

  --shadow: 0 16px 40px rgba(15,23,42,.10);
  --shadow2: 0 10px 26px rgba(15,23,42,.08);
}

body{
  background:
    linear-gradient(180deg, var(--bg), var(--bg2));
}

body::before,
body::after{
  content:none !important;
  display:none !important;
}

.book-container{
  background: transparent;
  border: 0;
  border-radius: 20px;
  box-shadow: none;
  overflow: visible;
}

.book-container::before{
  content:none !important;
  display:none !important;
}

/* Topbar: clean */
.topbar{
  background: rgba(255,255,255,.96);
  border-bottom: 1px solid rgba(15,23,42,.08);
}

.topbar-link{
  background:#fff;
  border:1px solid rgba(15,23,42,.10);
}

.topbar-cta{
  background: var(--c2);
  box-shadow: 0 10px 22px rgba(11,95,255,.18);
}

.topbar-link,
.topbar-cta{
  border-radius: 12px;
}

/* Hero: light overlay on image */
.hero-content{
  border: 1px solid rgba(15,23,42,.10);
  background:
    linear-gradient(180deg, rgba(255,255,255,.92), rgba(255,255,255,.80)),
    url('../images/hero-bg.jpg') center/cover no-repeat;
  color: var(--text);
  box-shadow: var(--shadow);
}

.hero-content::after{
  content:none !important;
  display:none !important;
}

.hero-badge{
  background: rgba(11,95,255,.08);
  border: 1px solid rgba(11,95,255,.16);
  color: rgba(11,95,255,.96);
}

.hero-title{
  color: var(--text);
}

.highlight{
  background: linear-gradient(90deg, var(--c2) 0%, #1f8cff 55%, #00b7ff 100%);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}

.hero-desc{
  color: var(--muted);
}

.stat{
  background: rgba(255,255,255,.86);
  border: 1px solid rgba(15,23,42,.10);
  color: var(--text);
}

.stat-num{
  color: rgba(11,18,32,.92);
}

.stat-label{
  color: var(--muted2);
}

.ghost-link{
  background: rgba(255,255,255,.92);
  border: 1px solid rgba(15,23,42,.10);
  color: rgba(11,18,32,.92);
}

.trust-badges{
  color: rgba(11,18,32,.72);
}

.trust-badges .icon{
  color: rgba(11,95,255,.92);
}

.hero-footnote{
  color: var(--muted2);
}

.star{color: rgba(11,95,255,.92);}

/* Aside hero card */
.hero-card{
  background: #fff;
  border: 1px solid rgba(15,23,42,.10);
  box-shadow: var(--shadow2);
}

/* Primary CTA button: clean pro */
.cta-button{
  background: var(--c2);
  box-shadow: 0 12px 22px rgba(11,95,255,.20);
  border-radius: 16px;
  text-shadow: 0 2px 10px rgba(0,0,0,.22);
}

.cta-button:active{
  transform: translateY(1px);
}

.btn-icon{
  filter: none;
}

.section-head h2{
  color: rgba(11,18,32,.92);
}

.section-head p{
  color: var(--muted);
}

/* Cards: solid + subtle border */
.benefit,
.step,
.flow-card,
.faq-item,
.legal-section,
.car-card{
  background: #fff !important;
  border: 1px solid rgba(15,23,42,.10) !important;
  box-shadow: var(--shadow2) !important;
}

/* Benefit icons: professional */
.benefit-icon{
  background: rgba(11,95,255,.08);
  border: 1px solid rgba(11,95,255,.16);
  color: rgba(11,95,255,.96);
  border-radius: 16px;
}

.benefit-icon .icon{
  width: 22px;
  height: 22px;
}

/* Car price accent */
.car-price span{
  color: rgba(11,95,255,.96);
}

/* Sticky CTA: clean */
.sticky-cta{
  background: rgba(255,255,255,.98);
  border-top: 1px solid rgba(15,23,42,.10);
  box-shadow: 0 -8px 22px rgba(15,23,42,.10);
}

.sticky-btn{
  background: var(--c2);
  border-radius: 14px;
  box-shadow: 0 12px 22px rgba(11,95,255,.18);
}

.sticky-btn:active{
  transform: translateY(1px);
}

/* Footer */
.footer{
  background: transparent;
  border-top: 1px solid rgba(15,23,42,.08);
}