/* =========================================================
   香港車友會｜V3 视觉加强版（更营销炸裂）
   - 手机优先 + 强对比 + 渐变/光斑/动效
   - 仍保持可读性与合规信息展示
   ========================================================= */

:root{
  --primary:#FF6B35;
  --secondary:#004E89;
  --accent:#F7B801;

  --ink:#0b1220;
  --muted:rgba(11,18,32,.72);

  --dark:#0b0f1a;
  --panel:#ffffff;

  --line:rgba(255,255,255,.14);
  --line2:rgba(11,18,32,.12);

  --radius:18px;
  --shadow:0 14px 34px rgba(0,0,0,.18);
  --shadow2:0 8px 22px rgba(0,0,0,.12);

  --g1:linear-gradient(135deg, #FF6B35 0%, #F7B801 100%);
  --g2:linear-gradient(135deg, #004E89 0%, #1F7A8C 100%);
  --glass:rgba(255,255,255,.10);
  --max:1100px;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,"PingFang HK","Noto Sans TC","Microsoft JhengHei",sans-serif;
  color:var(--ink);
  background:
    radial-gradient(900px 520px at 12% 0%, rgba(255,107,53,.20), rgba(255,255,255,0) 60%),
    radial-gradient(760px 520px at 95% 10%, rgba(0,78,137,.18), rgba(255,255,255,0) 60%),
    linear-gradient(180deg, #ffffff 0%, #f7f7fb 100%);
  line-height:1.55;
}

img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.container{max-width:var(--max);margin:0 auto;padding:0 16px}

/* ---------------- Topbar ---------------- */
.topbar{
  position:sticky;top:0;z-index:50;
  background:rgba(10,12,20,.70);
  border-bottom:1px solid rgba(255,255,255,.10);

}
.topbar-inner{
  display:flex;align-items:center;justify-content:space-between;
  padding:10px 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:var(--g1);color:#fff;font-weight:900;letter-spacing:.5px;
  box-shadow:0 8px 20px rgba(255,107,53,.25);
}
.brand-text{display:flex;flex-direction:column;min-width:0}
.brand-name{color:#fff;font-weight:900;font-size:14px;line-height:1.15}
.brand-sub{
  color:rgba(255,255,255,.72);
  font-size:12px;margin-top:3px;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:230px;
}

.topbar-actions{display:flex;gap:10px;align-items:center}
.topbar-link{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 12px;border-radius:999px;
  border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.06);
  color:#fff;font-weight:800;font-size:13px;
}
.topbar-link .icon{opacity:.95}
.topbar-cta{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 14px;border-radius:999px;
  border:0;background:var(--g1);
  color:#fff;font-weight:900;font-size:13px;
  box-shadow:0 10px 22px rgba(255,107,53,.28);
}
.topbar-cta:active{transform:translateY(1px)}

/* ---------------- Hero ---------------- */
.hero{
  position:relative;
  min-height: 92vh;
  display:flex;align-items:stretch;
  padding:22px 0 24px;
  background:
    linear-gradient(135deg, rgba(11,15,26,.92) 0%, rgba(12,22,40,.86) 55%, rgba(0,78,137,.72) 100%),
    url("../images/hero-bg.jpg") center/cover no-repeat;
  overflow:hidden;
}
.hero-overlay{
  position:absolute;inset:0;
  background:
    radial-gradient(900px 520px at 15% 10%, rgba(255,107,53,.30), rgba(255,255,255,0) 60%),
    radial-gradient(820px 520px at 90% 0%, rgba(247,184,1,.18), rgba(255,255,255,0) 55%),
    linear-gradient(180deg, rgba(0,0,0,.18), rgba(0,0,0,.36));
  pointer-events:none;
}
.hero-shapes{position:absolute;inset:0;pointer-events:none}
.shape{
  position:absolute;border-radius:999px;filter: blur(0px);
  opacity:.70;
  animation: floaty 10s ease-in-out infinite;
}
.shape-1{
  width:220px;height:220px;
  background:radial-gradient(circle at 30% 30%, rgba(255,107,53,.95), rgba(255,255,255,0));
  top:-60px;left:-40px;
}
.shape-2{
  width:280px;height:280px;
  background:radial-gradient(circle at 30% 30%, rgba(0,183,255,.70), rgba(255,255,255,0));
  right:-80px;top:110px;
  animation-duration:12s;
}
.shape-3{
  width:240px;height:240px;
  background:radial-gradient(circle at 30% 30%, rgba(247,184,1,.70), rgba(255,255,255,0));
  left:40%;bottom:-120px;
  animation-duration:14s;
}

@keyframes floaty{
  0%,100%{transform:translate3d(0,0,0) scale(1)}
  50%{transform:translate3d(0,-16px,0) scale(1.02)}
}

.hero-inner{
  position:relative;z-index:1;
  width:100%;
  display:grid;grid-template-columns:1fr;
  gap:14px;
}

.hero-content{
  color:#fff;
  padding-top:8px;
}
.hero-badge{
  display:inline-flex;align-items:center;gap:10px;
  padding:10px 12px;border-radius:999px;
  border:1px solid rgba(255,255,255,.20);
  background:rgba(255,255,255,.08);
  font-weight:900;font-size:12px;letter-spacing:.2px;
}
.hero-badge .icon{color:rgba(247,184,1,.95)}
.hero-title{
  margin:14px 0 10px;
  font-size: clamp(30px, 7.6vw, 56px);
  line-height:1.12;
  font-weight:950;
  letter-spacing:-.6px;
}
.highlight{
  background: linear-gradient(90deg, #ff8a60 0%, #ffd15a 45%, #65d6ff 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-desc{
  margin:0 0 14px;
  color:rgba(255,255,255,.78);
  font-size:14px;
}
.hero-stats{
  display:grid;grid-template-columns: repeat(3, 1fr);
  gap:10px;
  margin: 14px 0 14px;
}
.stat{
  border-radius:16px;
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.16);
  padding:12px 10px;
}
.stat-num{
  font-size:16px;font-weight:950;color:#fff;letter-spacing:-.2px;
}
.stat-label{font-size:12px;color:rgba(255,255,255,.74);margin-top:4px}
.star{color:rgba(247,184,1,.98);font-weight:900}

.hero-cta-row{
  display:flex;flex-direction:column;gap:10px;
  margin-top: 4px;
}
.cta-button{
  width:100%;
  display:flex;align-items:center;justify-content:center;gap:10px;
  padding:14px 14px;
  border-radius:16px;
  border:0;
  background: var(--g1);
  color:#fff;
  font-weight:950;
  font-size:16px;
  box-shadow:0 16px 28px rgba(255,107,53,.26);
  cursor:pointer;
  transform: translateZ(0);
  animation: pulse 2.2s ease-in-out infinite;
}
.cta-button .icon{opacity:.95}
.cta-button:active{transform:translateY(1px)}
.cta-button.secondary{
  background: rgba(255,255,255,.10);
  border:1px solid rgba(255,255,255,.22);
  box-shadow:0 12px 20px rgba(0,0,0,.18);
  animation:none;
}

.icon{width:18px;height:18px;display:inline-block;vertical-align:-0.18em;flex:0 0 auto}
.benefit-icon .icon{width:22px;height:22px}
.btn-icon{
  width:20px;height:20px;
  object-fit:contain;
  filter: drop-shadow(0 6px 10px rgba(0,0,0,.25));
}
@keyframes pulse{
  0%,100%{box-shadow:0 16px 28px rgba(255,107,53,.26)}
  50%{box-shadow:0 20px 36px rgba(255,107,53,.38)}
}

.ghost-link{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:13px 14px;border-radius:16px;
  border:1px solid rgba(255,255,255,.20);
  background:rgba(255,255,255,.06);
  color:#fff;font-weight:900;font-size:14px;
}

.trust-badges{
  display:flex;flex-wrap:wrap;gap:10px;
  margin-top: 14px;
}
.trust-badges span{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 12px;border-radius:999px;
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.16);
  font-size:12px;font-weight:900;
}
.trust-badges .icon{color:rgba(247,184,1,.95)}
.hero-footnote{
  margin:12px 0 0;
  font-size:12px;
  color:rgba(255,255,255,.70);
}

/* hero side card */
.hero-card{
  background: rgba(255,255,255,.10);
  border:1px solid rgba(255,255,255,.18);
  border-radius: var(--radius);
  padding:14px;
  color:#fff;
  box-shadow:0 18px 34px rgba(0,0,0,.22);

}
.card-head{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-bottom:10px;
}
.card-title{
  display:flex;align-items:center;gap:10px;
  font-weight:950;
}
.card-title .icon{color:rgba(247,184,1,.95)}
.card-tag{
  font-size:12px;font-weight:950;
  padding:8px 10px;border-radius:999px;
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.16);
}
.flow{
  list-style:none;margin:0;padding:0;
  display:grid;gap:10px;
}
.flow li{
  display:grid;grid-template-columns:28px 1fr;
  gap:10px;align-items:center;
  padding:10px;border-radius:16px;
  background:rgba(0,0,0,.18);
  border:1px solid rgba(255,255,255,.12);
}
.flow-dot{
  width:28px;height:28px;border-radius:12px;
  display:grid;place-items:center;
  background:rgba(255,107,53,.22);
  border:1px solid rgba(255,107,53,.40);
  color:#fff;font-weight:950;
}
.flow-text{font-size:13px;color:rgba(255,255,255,.84);font-weight:800}

.card-note{
  margin-top:10px;
  display:flex;align-items:flex-start;gap:10px;
  font-size:12px;
  color:rgba(255,255,255,.78);
}
.card-note .icon{margin-top:2px;color:rgba(247,184,1,.95)}

/* ---------------- Sections ---------------- */
.section{
  padding: 44px 0;
}
.section-alt{
  background:
    radial-gradient(700px 340px at 10% 0%, rgba(255,107,53,.10), rgba(255,255,255,0) 60%),
    radial-gradient(700px 340px at 90% 0%, rgba(0,78,137,.10), rgba(255,255,255,0) 60%),
    linear-gradient(180deg, #ffffff 0%, #fbfbff 100%);
  border-top:1px solid rgba(11,18,32,.06);
  border-bottom:1px solid rgba(11,18,32,.06);
}
.section-head h2{
  margin:0;
  font-size:20px;
  letter-spacing:-.2px;
}
.section-head p{
  margin:10px 0 0;
  color:var(--muted);
  font-size:13px;
}

/* Car grid */
.car-grid{
  margin-top:16px;
  display:grid;
  grid-template-columns:1fr;
  gap:12px;
}
.car-card{
  background:#fff;
  border:1px solid rgba(11,18,32,.10);
  border-radius: var(--radius);
  overflow:hidden;
  box-shadow: 0 12px 26px rgba(11,18,32,.10);
  transform: translateZ(0);
}
.car-img img{width:100%;height:190px;object-fit:cover}
.car-body{padding:14px}
.car-body h3{margin:0;font-size:16px;font-weight:950}
.car-price{margin:8px 0 6px;color:rgba(11,18,32,.70);font-weight:900}
.car-price span{color:var(--primary);font-weight:950}
.car-desc{margin:0;color:rgba(11,18,32,.62);font-size:13px}

.center{margin-top:16px;display:grid;place-items:center}

/* Benefits */
.benefits{
  margin-top:16px;
  display:grid;gap:12px;
}
.benefit{
  background: linear-gradient(180deg, rgba(255,255,255,.96), rgba(255,255,255,.92));
  border:1px solid rgba(11,18,32,.10);
  border-radius: var(--radius);
  padding:14px;
  box-shadow: 0 12px 26px rgba(11,18,32,.10);
  position:relative;
}
.benefit::before{
  content:"";
  position:absolute;inset:0;
  background: radial-gradient(600px 260px at 0% 0%, rgba(255,107,53,.14), rgba(255,255,255,0) 60%);
  pointer-events:none;
}
.benefit-icon{
  width:44px;height:44px;border-radius:18px;
  display:grid;place-items:center;
  background: var(--g2);
  color:#fff;
  box-shadow:0 12px 22px rgba(0,78,137,.20);
  margin-bottom:10px;
  position:relative;
}
.benefit h3{margin:0 0 6px;font-size:16px;font-weight:950;position:relative}
.benefit p{margin:0;color:rgba(11,18,32,.66);font-size:13px;position:relative}

/* Steps */
.steps{
  margin-top:16px;
  display:grid;gap:12px;
}
.step{
  background:#fff;
  border:1px solid rgba(11,18,32,.10);
  border-radius: var(--radius);
  padding:14px;
  box-shadow: 0 12px 26px rgba(11,18,32,.10);
  display:grid;
  grid-template-columns:48px 1fr;
  gap:12px;
  align-items:start;
}
.step-num{
  width:48px;height:48px;border-radius:18px;
  background: var(--g1);
  color:#fff;
  font-weight:950;
  display:grid;place-items:center;
  box-shadow:0 14px 24px rgba(255,107,53,.22);
}
.step-body h3{margin:0;font-size:15px;font-weight:950}
.step-body p{margin:6px 0 0;color:rgba(11,18,32,.64);font-size:13px}

/* Notice box */
.section-notice{
  background:
    radial-gradient(800px 360px at 10% 0%, rgba(247,184,1,.14), rgba(255,255,255,0) 60%),
    radial-gradient(700px 360px at 95% 0%, rgba(255,107,53,.10), rgba(255,255,255,0) 60%),
    linear-gradient(180deg, #ffffff 0%, #fffdf7 100%);
}
.notice-box{
  border-radius: var(--radius);
  border:1px solid rgba(247,184,1,.30);
  background: linear-gradient(180deg, rgba(255,255,255,.98), rgba(255,255,255,.94));
  box-shadow: 0 14px 30px rgba(11,18,32,.10);
  padding:16px;
}
.notice-box h2{
  margin:0 0 10px;
  font-size:18px;
  display:flex;align-items:center;gap:10px;
}
.notice-box h2 .icon{color:var(--accent)}
.notice-box ul{margin:0;padding-left:18px;display:grid;gap:10px;color:rgba(11,18,32,.70);font-size:13px}
.notice-box strong{color:rgba(11,18,32,.92)}

/* FAQ */
.faq{margin-top:16px;display:grid;gap:10px}
.faq-item{
  background:#fff;
  border:1px solid rgba(11,18,32,.10);
  border-radius: var(--radius);
  padding: 12px 14px;
  box-shadow: 0 10px 22px rgba(11,18,32,.08);
}
.faq-item summary{
  cursor:pointer;
  font-weight:950;
  font-size:14px;
}
.faq-body{margin-top:10px;color:rgba(11,18,32,.66);font-size:13px}

/* Footer */
.footer{
  background: #0b0f1a;
  color: rgba(255,255,255,.88);
  padding: 26px 0 90px;
}
.footer-inner{display:grid;gap:12px}
.footer-brand{display:flex;gap:12px;align-items:center}
.footer-title{font-weight:950}
.footer-sub{font-size:12px;color:rgba(255,255,255,.68);margin-top:4px}
.footer-meta{font-size:13px;color:rgba(255,255,255,.74);display:grid;gap:6px}
.footer-links{margin-top:6px;display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.footer-links a{color:#fff;font-weight:900}
.footer-links span{opacity:.4}
.footer-copy{margin-top:6px;color:rgba(255,255,255,.60);font-size:12px}

/* Sticky CTA */
.sticky-cta{
  position:fixed;left:0;right:0;bottom:0;
  z-index:60;
  padding: 10px 12px calc(10px + env(safe-area-inset-bottom));
  background: rgba(10,12,20,.70);
  border-top:1px solid rgba(255,255,255,.10);

}
.sticky-cta-inner{
  max-width:var(--max);
  margin:0 auto;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.sticky-title{color:#fff;font-weight:950;font-size:14px;line-height:1.1}
.sticky-sub{color:rgba(255,255,255,.70);font-size:12px;margin-top:3px}
.sticky-btn{
  display:inline-flex;align-items:center;gap:8px;
  padding: 12px 14px;
  border-radius: 14px;
  border:0;
  background: var(--g1);
  color:#fff;font-weight:950;
  box-shadow: 0 14px 24px rgba(255,107,53,.22);
}
.sticky-btn:active{transform:translateY(1px)}

/* Legal pages (privacy/terms) */
.legal{
  padding: 20px 0 90px;
}
.legal h1{margin:0 0 8px;font-size:22px}
.legal .muted{color:var(--muted)}
.legal-section{
  margin-top:14px;
  background:#fff;
  border:1px solid rgba(11,18,32,.10);
  border-radius: var(--radius);
  padding: 14px;
  box-shadow: 0 10px 22px rgba(11,18,32,.08);
}
.legal-section h2{margin:0 0 8px;font-size:15px;font-weight:950}
.legal-section p,.legal-section li{color:rgba(11,18,32,.66);font-size:13px}
.legal-back{margin-top:16px}

/* Responsive */
@media (min-width: 900px){
  .container{padding:0 22px}
  .hero-inner{grid-template-columns: 1.25fr .75fr;gap:18px;align-items:center}
  .hero{padding: 34px 0 38px;min-height: 88vh}
  .hero-cta-row{flex-direction:row}
  .cta-button{max-width: 420px}
  .ghost-link{max-width: 260px}
  .car-grid{grid-template-columns: repeat(4, 1fr)}
  .car-img img{height:170px}
  .benefits{grid-template-columns: repeat(3, 1fr)}
  .steps{grid-template-columns: repeat(3, 1fr)}
  .step{grid-template-columns: 1fr;gap:10px}
  .step-num{width:54px;height:54px}
  .footer-inner{grid-template-columns: 1.1fr .9fr;align-items:start}
}

@media (prefers-reduced-motion: reduce){
  .shape, .cta-button{animation:none !important}
}


/* V9 performance + CTA comfort */
.section{content-visibility:auto;contain-intrinsic-size: 800px;}
.cta-button,.topbar-cta,.sticky-btn{
  color:#fff !important;
  text-shadow: 0 2px 10px rgba(0,0,0,.35);
}
.cta-button{
  border-radius: 16px;
  min-height: 52px;
  padding: 14px 18px;
  box-shadow: 0 12px 26px rgba(0,0,0,.16);
}
.cta-button:active{transform: translateY(1px);}