/* Marketing — system fonts, compositor-safe motion, img LCP */
@import url("nav-chrome.css?v=20260831ae");
:root {
  color-scheme: dark;
  --bg: #07090e;
  --bg-2: #0e1219;
  --ink: #eef1f6;
  --muted: #c5ccd8;
  --amber: #f5b800;
  --amber-2: #ffd45c;
  --line: rgba(255, 255, 255, 0.1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --font-display: "PingFang HK", "Noto Sans HK", "Hiragino Sans CNS", "Heiti TC", sans-serif;
  --font-body: "PingFang HK", "Noto Sans HK", "Hiragino Sans CNS", "Heiti TC", sans-serif;
  --font-mono: ui-monospace, "SF Mono", Menlo, "Courier New", monospace;
  --x: 70%;
  --y: 35%;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
html[lang="en"] {
  --font-display: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", sans-serif;
}
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--amber-2); }
:focus { outline: none; }
:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
}

.skip {
  position: absolute; left: -999px; top: 0; z-index: 100;
  background: var(--amber); color: #14100a; padding: 0.65rem 1rem; font-weight: 700;
}
.skip:focus { left: 0.5rem; top: 0.5rem; }

.nav {
  position: fixed; inset: 0 0 auto; z-index: 40;
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; padding: 0.65rem 1.1rem;
  background: rgba(7, 9, 14, 0.92);
}
.nav-brand {
  display: flex; align-items: center; gap: 0.65rem; min-height: 44px;
  min-width: 0; flex: 0 1 auto;
  text-decoration: none; color: var(--ink);
  font-weight: 700; font-size: 0.92rem; letter-spacing: -0.01em;
}
.nav-brand span {
  white-space: nowrap;
}
.nav-brand img {
  width: 36px; height: 36px; max-width: none; border-radius: 9px; flex-shrink: 0;
}
.nav-links {
  display: flex; align-items: center; gap: 0.35rem; flex-shrink: 1; min-width: 0;
}
.site-lang {
  display: inline-flex; align-items: center; gap: 0;
  margin-inline: 0.1rem; padding: 0.12rem;
  border: 1px solid var(--line); border-radius: 999px;
}
.nav-links .site-lang a, .nav-links .site-lang span {
  min-height: 32px; padding: 0 0.62rem; border-radius: 999px;
  font-size: 0.72rem; font-weight: 700; letter-spacing: 0.04em;
  text-decoration: none; color: var(--muted);
  display: inline-flex; align-items: center;
}
.site-lang [aria-current="true"] {
  background: rgba(245, 184, 0, 0.18); color: var(--amber);
}
.site-lang a:hover { color: var(--ink); }
.nav-links > a {
  color: var(--muted); text-decoration: none; font-size: 0.88rem;
  min-height: 44px; padding: 0 0.55rem;
  display: inline-flex; align-items: center;
}
.nav-links > a:hover, .nav-links > a[aria-current="page"] { color: var(--amber); }
.nav-links a.nav-hide-sm { display: none; }
@media (min-width: 640px) {
  .nav-links a.nav-hide-sm { display: inline-flex; }
}
.nav-links > a.nav-hide-sm[href*="guide.html"] {
  display: inline-flex;
}
/* 大賣場特價感 — 試用永遠顯示，跟住主頁右邊（只動 opacity／transform，利於合成層） */
.nav-links > a.nav-trial {
  position: relative;
  z-index: 1;
  color: #fff !important;
  background: linear-gradient(180deg, #ff4d4d 0%, #d10000 55%, #a80000 100%);
  font-weight: 900;
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  min-height: 32px;
  padding: 0 0.72rem;
  border-radius: 3px;
  border: 2px solid #ffe566;
  box-shadow: 0 0 0 1px #b30000, 0 2px 0 #6e0000;
  text-shadow: 0 1px 0 rgba(0, 0, 0, 0.35);
  transform: rotate(-2deg);
  flex-shrink: 0;
}
.nav-links > a.nav-trial::after {
  content: "";
  position: absolute; inset: -2px;
  border-radius: 3px;
  background: rgba(255, 255, 255, 0.35);
  pointer-events: none;
  opacity: 0;
  animation: nav-trial-flash 1.05s steps(2, end) infinite;
}
.nav-links > a.nav-trial:hover,
.nav-links > a.nav-trial[aria-current="page"] {
  color: #fff !important;
  transform: rotate(-2deg) translateY(-1px);
}
@keyframes nav-trial-flash {
  50% { opacity: 1; }
}
@media (prefers-reduced-motion: reduce) {
  .nav-links > a.nav-trial::after { animation: none; }
}
.nav-cta {
  padding: 0 0.95rem; border-radius: 999px; background: var(--amber);
  color: #14100a !important; font-weight: 700; font-size: 0.88rem;
  text-decoration: none !important;
}
.nav-cta:hover { transform: translateY(-1px); }
.nav-cta-web {
  background: #0a0a0a;
  color: #f5f0e8 !important;
  border: 1px solid rgba(255, 255, 255, 0.14);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.06) inset;
}
.nav-cta-web:hover {
  background: #161616;
  color: #fff !important;
}

.hero {
  position: relative; min-height: 100svh; display: grid; align-items: end;
  padding: 5.5rem 1.15rem 2.5rem; overflow: hidden;
  --spot-r: 28vmin;
}
.hero-media { position: absolute; inset: 0; }
.hero-photo {
  position: absolute; inset: 0; width: 100%; height: 100%; max-width: none;
  object-fit: cover;
}
.hero-photo-dim { object-position: center 42%; }
.hero-photo-bright {
  object-position: center 28%;
  pointer-events: none;
  -webkit-mask-image: radial-gradient(circle var(--spot-r) at var(--x) var(--y), #000 0%, #000 42%, transparent 72%);
  mask-image: radial-gradient(circle var(--spot-r) at var(--x) var(--y), #000 0%, #000 42%, transparent 72%);
}
.hero-veil {
  position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(180deg, rgba(7,9,14,0.28), rgba(7,9,14,0.78) 68%, #07090e);
}
.hero-route { position: absolute; inset: 0; pointer-events: none; }
.hero-route path {
  fill: none; stroke: var(--amber); stroke-width: 2.2; stroke-linecap: round;
  opacity: 0; animation: fade-route 0.9s var(--ease-out) 0.25s forwards;
}
@keyframes fade-route { to { opacity: 0.5; } }
.hero-content { position: relative; z-index: 2; max-width: 40rem; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--amber); margin-bottom: 0.85rem;
}
.eyebrow::before {
  content: ""; width: 0.55rem; height: 0.55rem; border-radius: 50%; background: var(--amber);
  animation: pulse 1.8s ease-out infinite;
}
@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  70% { transform: scale(1.9); opacity: 0; }
}
.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.35rem, 9.5vw, 4.4rem);
  line-height: 1.02; letter-spacing: -0.035em; margin: 0 0 1rem; font-weight: 800;
}
.hero h1 .line { display: block; overflow: hidden; }
.hero h1 .line span {
  display: inline-block;
  transform: translateY(110%);
  animation: rise 0.9s var(--ease-out) forwards;
}
.hero h1 .line-product {
  margin-bottom: 0.35em;
}
.hero h1 .line-product span {
  font-size: 0.32em;
  letter-spacing: -0.01em;
  font-weight: 700;
  line-height: 1.25;
}
.hero h1 .line:nth-child(2) span { animation-delay: 0.12s; }
.hero h1 .line:nth-child(3) span { animation-delay: 0.2s; }
.hero h1 .accent { color: var(--amber); }
@keyframes rise { to { transform: translateY(0); } }
.hero-lead {
  font-size: clamp(1rem, 3.4vw, 1.15rem); color: #d7dde8; max-width: 34rem; margin: 0 0 1.5rem;
  opacity: 0; animation: fade-up 0.8s var(--ease-out) 0.35s forwards;
}
@keyframes fade-up {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}
.hero-actions {
  display: flex; flex-wrap: wrap; gap: 0.75rem; align-items: center;
  opacity: 0; animation: fade-up 0.8s var(--ease-out) 0.5s forwards;
}
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 44px; padding: 0.7rem 1.25rem; border-radius: 999px; border: 1px solid transparent;
  font-weight: 700; text-decoration: none;
  transition: transform 0.25s var(--ease-out), background 0.2s;
}
.btn-primary { background: var(--amber); color: #14100a; }
.btn-primary:hover { transform: translateY(-2px); }
.btn-ghost {
  background: rgba(255,255,255,0.04); color: var(--ink); border-color: var(--line);
}
.btn-ghost:hover { border-color: rgba(245,184,0,0.45); color: var(--amber-2); }
.legal-note {
  margin-top: 1.15rem; font-size: 0.875rem; color: var(--muted); max-width: 32rem;
  opacity: 0; animation: fade-up 0.8s var(--ease-out) 0.65s forwards;
}

.stats {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.65rem;
  padding: 0 1.15rem; margin: -0.5rem auto 0; max-width: 72rem; position: relative; z-index: 3;
}
.stat {
  background: var(--bg-2); border: 1px solid var(--line); border-radius: 16px;
  padding: 1rem 0.85rem; text-align: center;
}
.stat strong {
  display: block; font-family: var(--font-display); font-size: clamp(1.15rem, 3.8vw, 1.65rem);
  letter-spacing: -0.03em; color: var(--amber); line-height: 1.15;
}
.stat span { font-size: 0.8125rem; color: var(--muted); display: block; margin-top: 0.35rem; line-height: 1.35; }
.star-ref {
  color: var(--amber); font-size: 0.65em; vertical-align: super; margin-left: 0.1em; font-weight: 700;
}
.footnote-star { font-size: 0.875rem; line-height: 1.5; max-width: 42rem; color: var(--muted); margin: 0; }
.footnote-star .star-mark { color: var(--amber); font-weight: 700; margin-right: 0.25rem; }
.footnote-star strong { color: #e4e8f0; font-weight: 600; }

section { padding: 4.5rem 1.15rem; }
.section-inner { max-width: 72rem; margin: 0 auto; }
.section-kicker {
  font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--amber); margin: 0 0 0.6rem;
}
.section-title {
  font-family: var(--font-display); font-size: clamp(1.75rem, 5.5vw, 2.75rem);
  letter-spacing: -0.03em; line-height: 1.1; margin: 0 0 0.75rem; max-width: 18ch;
}
.section-title-wide { max-width: 22ch; }
.section-lead { color: var(--muted); max-width: 36rem; margin: 0 0 2rem; }
.section-body { color: var(--muted); max-width: 40rem; margin: 0 0 1.25rem; font-size: 1rem; }
.cite-line { color: var(--muted); max-width: 40rem; margin: 0 0 1.5rem; font-size: 0.92rem; }
.cite-line a { color: var(--amber-2); }
.takeaways {
  display: grid; gap: 0.65rem; margin: 0.35rem 0 0; padding: 0; list-style: none; max-width: 40rem;
}
.takeaways li {
  padding: 0.85rem 1.1rem; border-radius: 14px; border: 1px solid var(--line);
  background: var(--bg-2); color: var(--muted); font-size: 0.95rem;
}
.takeaways li strong { color: var(--ink); }

.features { display: grid; gap: 1rem; }
.feature {
  overflow: hidden; border-radius: 22px; border: 1px solid var(--line); background: var(--bg-2);
}
.feature figure { margin: 0; }
.feature img {
  width: 100%; height: auto; aspect-ratio: 1; object-fit: cover;
  transition: transform 0.7s var(--ease-out);
}
.feature:hover img { transform: scale(1.04); }
.feature figcaption {
  padding: 0.55rem 1.2rem 0; font-size: 0.8rem; color: var(--muted);
}
.feature-body { padding: 0.65rem 1.2rem 1.4rem; }
.feature h3 {
  font-family: var(--font-display); font-size: 1.25rem; margin: 0 0 0.4rem; letter-spacing: -0.02em;
}
.feature p { margin: 0; color: var(--muted); font-size: 0.95rem; }

.flow { display: grid; gap: 0.85rem; counter-reset: step; list-style: none; margin: 0; padding: 0; }
.flow-item {
  display: grid; grid-template-columns: auto 1fr; gap: 0.9rem; align-items: start;
  padding: 1.1rem 1.15rem; border-radius: 18px; border: 1px solid var(--line);
  background: var(--bg-2);
}
.flow-item::before {
  counter-increment: step; content: counter(step, decimal-leading-zero);
  font-family: var(--font-mono); color: var(--amber); font-size: 0.85rem; padding-top: 0.2rem;
}
.flow-item h3 { margin: 0 0 0.25rem; font-size: 1.05rem; }
.flow-item p { margin: 0; color: var(--muted); font-size: 0.92rem; }

.lamp-band {
  position: relative; overflow: hidden; border-radius: 24px; border: 1px solid var(--line);
  min-height: 16rem; display: grid; align-items: end;
}
.lamp-band img {
  position: absolute; inset: 0; width: 100%; height: 100%; max-width: none; object-fit: cover;
}
.lamp-band::after {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(circle at 30% 40%, rgba(245,184,0,0.35), transparent 45%),
    linear-gradient(180deg, transparent, rgba(7,9,14,0.92));
  animation: glow-breathe 4s ease-in-out infinite;
}
@keyframes glow-breathe {
  0%, 100% { opacity: 0.85; }
  50% { opacity: 1; }
}
.lamp-copy { position: relative; z-index: 1; padding: 1.5rem 1.25rem; max-width: 28rem; }
.lamp-copy h2 { font-family: var(--font-display); font-size: clamp(1.5rem, 4.5vw, 2.1rem); margin: 0 0 0.5rem; letter-spacing: -0.02em; }
.lamp-copy p { margin: 0; color: #e4e8f0; }

.perk-grid { display: grid; gap: 0.85rem; margin-top: 1.25rem; }
.perk-card {
  padding: 1.1rem 1.15rem; border-radius: 18px; border: 1px solid var(--line); background: var(--bg-2);
}
.perk-card h3 { margin: 0 0 0.35rem; font-size: 1.02rem; color: var(--amber-2); }
.perk-card p { margin: 0; color: var(--muted); font-size: 0.92rem; }

.cta-final {
  text-align: center; padding-block: 5rem;
  background: radial-gradient(600px 280px at 50% 0%, rgba(245,184,0,0.16), transparent 60%), var(--bg);
}
.cta-final h2 {
  font-family: var(--font-display); font-size: clamp(2rem, 7vw, 3.2rem);
  letter-spacing: -0.035em; margin: 0 0 0.75rem;
}
.cta-final p { color: var(--muted); max-width: 28rem; margin: 0 auto 1.5rem; }
.cta-badge {
  display: inline-block; margin-bottom: 1rem; padding: 0.4rem 0.85rem; border-radius: 999px;
  border: 1px solid rgba(245,184,0,0.35); color: var(--amber); font-family: var(--font-mono);
  font-size: 0.75rem; letter-spacing: 0.08em; text-transform: uppercase;
}

.site-footer {
  padding: 2rem 1.15rem 3rem; border-top: 1px solid var(--line); color: var(--muted); font-size: 0.88rem;
}
.site-footer .inner { max-width: 72rem; margin: 0 auto; display: grid; gap: 1rem; }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 0.35rem 0.5rem; }
.site-footer a {
  color: var(--muted); text-decoration: none;
  min-height: 44px; display: inline-flex; align-items: center; padding: 0 0.4rem;
}
.site-footer a:hover { color: var(--amber); }
.fineprint { font-size: 0.875rem; max-width: 42rem; }

.reveal {
  opacity: 0; transform: translateY(20px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}
.reveal.is-in { opacity: 1; transform: none; }
.reveal-delay-1 { transition-delay: 0.08s; }
.reveal-delay-2 { transition-delay: 0.16s; }
.reveal-delay-3 { transition-delay: 0.24s; }

@media (min-width: 768px) {
  .nav { padding: 0.75rem 2rem; }
  .hero { padding: 8.5rem 2rem 3.5rem; --spot-r: 26vmin; }
  .hero-photo-dim { object-position: center 35%; }
  .hero-photo-bright { object-position: center 18%; }
  .hero-content { max-width: 42rem; }
  .stats { padding-inline: 2rem; gap: 1rem; margin-top: -1.5rem; }
  .stat { padding: 1.25rem; }
  section { padding: 6rem 2rem; }
  .features { grid-template-columns: repeat(3, 1fr); gap: 1.15rem; }
  .flow { grid-template-columns: repeat(3, 1fr); }
  .lamp-band { min-height: 22rem; }
  .lamp-copy { padding: 2.5rem; }
  .perk-grid { grid-template-columns: repeat(2, 1fr); gap: 1rem; margin-top: 1.75rem; }
}
@media (min-width: 1100px) {
  .hero { padding-top: 9.5rem; --spot-r: 24vmin; }
  .hero-photo-bright { object-position: center 12%; }
  .hero h1 { font-size: 4.6rem; }
  .perk-grid { grid-template-columns: repeat(4, 1fr); }
}
@media (min-width: 1400px) {
  .hero-photo-bright { object-position: center 8%; }
}
@media (hover: none) {
  .hero-photo-bright {
    -webkit-mask-image: radial-gradient(circle 55vmin at 70% 35%, #000 20%, transparent 70%);
    mask-image: radial-gradient(circle 55vmin at 70% 35%, #000 20%, transparent 70%);
  }
}
/* FAQ */
.faq-section { padding-block: 4.5rem; background: var(--bg-2); border-top: 1px solid var(--line); }
.faq-list { display: grid; gap: 0.75rem; margin: 0; padding: 0; list-style: none; }
.faq-item {
  border: 1px solid var(--line); border-radius: 16px; background: rgba(7, 9, 14, 0.6);
  padding: 0; overflow: hidden;
}
.faq-item summary {
  cursor: pointer; padding: 1rem 1.15rem; font-weight: 600; font-size: 1rem;
  line-height: 1.4; list-style: none; display: flex; align-items: center; justify-content: space-between; gap: 0.75rem;
  min-height: 44px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+"; color: var(--amber); font-family: var(--font-mono); font-size: 1.1rem; flex-shrink: 0;
}
.faq-item[open] summary::after { content: "−"; }
.faq-item summary:focus-visible { outline: 2px solid var(--amber); outline-offset: -2px; }
.faq-body { padding: 0 1.15rem 1.1rem; color: var(--muted); font-size: 0.95rem; }
.faq-body p { margin: 0; }
.faq-body a { color: var(--amber-2); }
.guide-link {
  margin-top: 1.5rem; padding: 1rem 1.15rem; border-radius: 16px;
  border: 1px solid rgba(245, 184, 0, 0.25); background: rgba(245, 184, 0, 0.06);
}
.guide-link p { margin: 0; color: #d5dae5; font-size: 0.95rem; }
.guide-link a { font-weight: 600; }

.trial-invite {
  padding: 1.35rem 1.15rem 0;
  max-width: 72rem;
  margin: 0 auto;
  position: relative;
  z-index: 3;
}
.trial-invite-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem 1.25rem;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.15rem;
  border-radius: 18px;
  border: 1px solid rgba(245, 184, 0, 0.28);
  background: rgba(245, 184, 0, 0.06);
}
.trial-invite p {
  margin: 0;
  color: #d7dde8;
  font-size: 0.95rem;
  max-width: 36rem;
}
.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
  justify-content: center;
}
@media (min-width: 768px) {
  .trial-invite { padding-inline: 2rem; }
}

@media (min-width: 768px) {
  .faq-section { padding-block: 6rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .hero h1 .line span, .hero-lead, .hero-actions, .legal-note, .hero-route path, .eyebrow::before, .lamp-band::after {
    animation: none !important;
  }
  .hero h1 .line span { transform: none; }
  .hero-lead, .hero-actions, .legal-note { opacity: 1; }
  .hero-route path { opacity: 0.5; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .feature:hover img { transform: none; }
}