:root {
  --bg: #0b0d10;
  --card: #14181d;
  --text: #f4f1ea;
  --mute: #b7b1a6;
  --line: #2a3038;
  --gold: #f3e2b0;
  --gold-deep: #e7d7b0;
  --wa: #25d366;
  --wa-ink: #06210f;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  font-family: "Noto Sans TC", "PingFang HK", "Microsoft JhengHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  padding-bottom: 76px;
}

.wrap { width: min(1180px, calc(100% - 32px)); margin: 0 auto; }

.hero {
  position: relative;
  min-height: 86vh;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  background: url("images/lp-audi-a6-clean.png") center 42% / cover no-repeat;
}
.hero-shade {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(8,10,12,0.94) 0%, rgba(8,10,12,0.62) 48%, rgba(8,10,12,0.22) 100%),
    linear-gradient(180deg, rgba(8,10,12,0.12) 28%, rgba(8,10,12,0.88) 100%);
}
.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(280px, 360px);
  gap: 32px;
  align-items: end;
  padding: 72px 0 56px;
}
.hero-copy { max-width: 720px; }
.kicker,
.eyebrow {
  margin: 0 0 12px;
  letter-spacing: 0.22em;
  font-size: 12px;
  font-weight: 700;
  color: var(--gold-deep);
}
h1, h2, h3 { margin: 0; font-weight: 800; letter-spacing: -0.02em; }
h1 {
  font-size: clamp(34px, 5.2vw, 60px);
  line-height: 1.16;
  max-width: 9.2em;
}
.lead {
  margin: 18px 0 28px;
  font-size: clamp(16px, 1.8vw, 20px);
  color: #ece7dc;
  max-width: 28em;
}
.lead em {
  font-style: normal;
  color: var(--gold);
  font-weight: 800;
}

.hero-price {
  background: linear-gradient(180deg, rgba(20, 24, 29, 0.92), rgba(11, 13, 16, 0.96));
  border: 1px solid rgba(243, 226, 176, 0.35);
  border-radius: 18px;
  padding: 22px 22px 18px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
  backdrop-filter: blur(14px);
}
.hero-price-kicker {
  margin: 0 0 6px;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.18em;
  color: var(--gold);
}
.hero-price-label {
  margin: 0;
  color: var(--mute);
  font-size: 14px;
}
.hero-price-num {
  margin: 4px 0 8px;
  font-size: clamp(32px, 4vw, 42px);
  font-weight: 900;
  letter-spacing: -0.04em;
  color: var(--gold);
  line-height: 1.1;
}
.hero-price-sub {
  margin: 0 0 16px;
  color: #ece7dc;
  font-size: 14px;
  font-weight: 700;
}
.hero-cuts {
  list-style: none;
  margin: 0;
  padding: 12px 0 0;
  border-top: 1px solid var(--line);
}
.hero-cuts li {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 7px 0;
  font-size: 14px;
  color: var(--mute);
}
.hero-cuts b {
  color: var(--gold);
  font-weight: 800;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 52px;
  padding: 0 26px;
  background: var(--wa);
  color: var(--wa-ink);
  text-decoration: none;
  font-weight: 800;
  border-radius: 10px;
  box-shadow: 0 10px 30px rgba(37, 211, 102, 0.25);
  touch-action: manipulation;
  -webkit-user-select: none;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}
.btn svg { width: 18px; height: 18px; }
.btn:hover { filter: brightness(1.06); }
.btn:active { filter: brightness(0.96); }

/* 首页主按钮：跳动 + 光晕，吸引点击 */
@keyframes wa-jump {
  0%, 100% { transform: translateY(0); }
  8% { transform: translateY(-7px); }
  16% { transform: translateY(0); }
  24% { transform: translateY(-5px); }
  32% { transform: translateY(0); }
  40% { transform: translateY(-3px); }
  48% { transform: translateY(0); }
}
@keyframes wa-glow {
  0%, 100% { box-shadow: 0 10px 30px rgba(37, 211, 102, 0.25), 0 0 0 0 rgba(37, 211, 102, 0.55); }
  55% { box-shadow: 0 10px 30px rgba(37, 211, 102, 0.25), 0 0 0 16px rgba(37, 211, 102, 0); }
}
.hero-copy .btn.js-wa {
  animation: wa-jump 1.6s ease-in-out infinite, wa-glow 1.6s ease-out infinite;
}
@media (prefers-reduced-motion: reduce) {
  .hero-copy .btn.js-wa { animation: none; }
}
.btn-sm { min-height: 44px; padding: 0 18px; font-size: 15px; }
.btn-ghost {
  width: 100%;
  min-height: 44px;
  margin-top: 14px;
  background: transparent;
  color: var(--gold);
  border: 1px solid rgba(243, 226, 176, 0.45);
  box-shadow: none;
}
.btn-ghost:hover { background: rgba(243, 226, 176, 0.08); }

.strip {
  background: var(--gold);
  color: #16120c;
  text-align: center;
  padding: 16px 20px;
  font-weight: 800;
  font-size: clamp(15px, 2.1vw, 21px);
}
.strip p { margin: 0; }

.why { padding: 56px 0 8px; }
.why-head { max-width: 46em; margin-bottom: 28px; }
.why h2,
.cars h2 {
  font-size: clamp(26px, 3.4vw, 40px);
  margin-bottom: 12px;
}
.why-head p {
  margin: 0;
  color: var(--mute);
  font-size: 17px;
}
.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.why-grid article {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 22px 20px 24px;
}
.why-grid b {
  color: var(--gold);
  font-size: 13px;
  letter-spacing: 0.12em;
}
.why-grid h3 {
  margin: 10px 0 8px;
  font-size: 20px;
}
.why-grid p {
  margin: 0;
  color: var(--mute);
  font-size: 15px;
}

.cars { padding: 48px 0 24px; }
.cars-head { margin-bottom: 28px; }
.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.card {
  background: var(--card);
  border: 1px solid var(--line);
  overflow: hidden;
  border-radius: 16px;
  display: flex;
  flex-direction: column;
}
.card-media { position: relative; overflow: hidden; }
.card img {
  width: 100%;
  height: 210px;
  object-fit: cover;
  display: block;
  transform: scale(1.01);
  transition: transform 0.4s ease;
}
.card:hover img { transform: scale(1.06); }
.badge {
  position: absolute;
  left: 12px;
  bottom: 12px;
  background: var(--gold);
  color: #16120c;
  font-size: 13px;
  font-weight: 900;
  padding: 6px 10px;
  border-radius: 999px;
}
.card-body { padding: 16px 16px 18px; display: flex; flex-direction: column; flex: 1; }
.card-body h3 { font-size: 22px; font-weight: 800; color: #f4f1ea; }
.price-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}
.price-row small {
  display: block;
  color: var(--mute);
  font-size: 12px;
  margin-bottom: 4px;
}
.was {
  margin: 0;
  color: #8d877c;
  text-decoration: line-through;
  font-size: 15px;
  font-weight: 700;
}
.now {
  margin: 0;
  color: var(--gold);
  font-size: 20px;
  font-weight: 900;
  letter-spacing: -0.03em;
}
.price-note {
  margin: 18px 0 0;
  color: var(--mute);
  font-size: 12px;
}

.cta { padding: 48px 0 64px; }
.cta-inner {
  background:
    radial-gradient(1200px 180px at 50% 0%, rgba(243, 226, 176, 0.12), transparent 60%),
    linear-gradient(180deg, #171c22, #10141a);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 44px 28px;
  text-align: center;
}
.cta h2 { font-size: clamp(26px, 3vw, 36px); }
.cta p { color: var(--mute); margin: 12px auto 0; max-width: 34em; }
.cta-price {
  margin: 18px 0 24px !important;
  color: var(--text) !important;
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 800;
}
.cta-price em {
  font-style: normal;
  color: var(--gold);
}
.hint { min-height: 1.4em; font-size: 13px; }

footer {
  border-top: 1px solid var(--line);
  padding: 22px 0 28px;
  color: var(--mute);
  font-size: 13px;
}
footer p { margin: 0 0 6px; }
.ver { opacity: 0.7; }

.dock {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 20;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 12px 18px;
  background: rgba(11, 13, 16, 0.92);
  border-top: 1px solid var(--line);
  backdrop-filter: blur(10px);
}
.dock span { font-weight: 800; color: var(--gold); }

@media (max-width: 900px) {
  .hero { min-height: 100svh; align-items: stretch; }
  .hero-inner {
    grid-template-columns: 1fr;
    padding: 48px 0 96px;
    align-items: end;
  }
  .hero-copy { margin: 0; }
  /* 移动端按钮优化：首页 CTA 全宽 + 更大的点击区域 */
  .hero-copy .btn.js-wa { width: 100%; }
  .btn { min-height: 56px; font-size: 17px; }
  .btn-ghost { min-height: 50px; }
  .btn-sm { min-height: 50px; }
  .grid,
  .why-grid { grid-template-columns: 1fr; }
  .card img { height: 240px; }
  .dock {
    flex-direction: column;
    align-items: stretch;
    padding-bottom: calc(12px + env(safe-area-inset-bottom, 0px));
  }
  .dock span { text-align: center; }
  body { padding-bottom: calc(118px + env(safe-area-inset-bottom, 0px)); }
}