/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --primary: #FF6B35;
  --primary-dark: #e55a25;
  --primary-light: #fff4ef;
  --secondary: #2D3748;
  --accent: #48BB78;
  --text: #1A202C;
  --text-muted: #718096;
  --bg: #FFFFFF;
  --bg-soft: #F7FAFC;
  --border: #E2E8F0;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.08);
  --shadow-md: 0 4px 16px rgba(0,0,0,.1);
  --shadow-lg: 0 12px 40px rgba(0,0,0,.12);
  --radius: 12px;
  --radius-lg: 20px;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Noto Sans TC', 'PingFang TC', 'Microsoft JhengHei', sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  font-size: 16px;
}

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

.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 96px 0;
  scroll-margin-top: 80px;
}

.how-it-works { scroll-margin-top: 80px; }
.cta-section { scroll-margin-top: 80px; }
#home { scroll-margin-top: 0; }

.section-tag {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .08em;
  padding: 6px 16px;
  border-radius: 99px;
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 800;
  line-height: 1.3;
  color: var(--secondary);
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 18px;
  color: var(--text-muted);
  max-width: 560px;
  margin: 0 auto 56px;
}

.text-center { text-align: center; }

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 10px;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all .2s ease;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.btn-primary:hover { background: var(--primary-dark); border-color: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(255,107,53,.35); }

.btn-outline {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
}
.btn-outline:hover { background: var(--primary-light); transform: translateY(-2px); }

.btn-lg { padding: 18px 36px; font-size: 18px; border-radius: 12px; }

/* ===== Navbar ===== */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(255,255,255,.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow .3s;
}

.navbar.scrolled { box-shadow: var(--shadow-md); }

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 900;
  color: var(--primary);
}

.logo-icon {
  width: 38px;
  height: 38px;
  background: var(--primary);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 20px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
  list-style: none;
}

.nav-links a {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-muted);
  transition: color .2s;
}
.nav-links a:hover { color: var(--primary); }

.nav-cta { display: flex; align-items: center; gap: 12px; }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 6px;
  background: none;
  border: none;
  appearance: none;
  -webkit-appearance: none;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--secondary);
  border-radius: 2px;
  transition: all .3s;
}

/* ===== Hero ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 68px;
  background: linear-gradient(135deg, #fff8f5 0%, #fff 50%, #f0fff4 100%);
  overflow: clip;
  overflow-clip-margin: 0px;
  position: relative;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px; right: -200px;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(255,107,53,.12) 0%, transparent 70%);
  border-radius: 50%;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -150px; left: -150px;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(72,187,120,.1) 0%, transparent 70%);
  border-radius: 50%;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary-light);
  border: 1px solid rgba(255,107,53,.2);
  color: var(--primary);
  font-size: 13px;
  font-weight: 700;
  padding: 7px 16px;
  border-radius: 99px;
  margin-bottom: 24px;
}

.hero-badge::before { content: '✦'; font-size: 10px; }

.hero-title {
  font-size: clamp(36px, 5vw, 58px);
  font-weight: 900;
  line-height: 1.2;
  color: var(--secondary);
  margin-bottom: 24px;
}

.hero-title em {
  font-style: normal;
  color: var(--primary);
  position: relative;
}

.hero-title em::after {
  content: '';
  position: absolute;
  bottom: 2px; left: 0; right: 0;
  height: 8px;
  background: rgba(255,107,53,.2);
  border-radius: 4px;
  z-index: -1;
}

.hero-desc {
  font-size: 18px;
  color: var(--text-muted);
  margin-bottom: 40px;
  line-height: 1.8;
}

.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; align-items: center; }

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 24px 32px;
  margin-top: 48px;
  padding-top: 40px;
  border-top: 1px solid var(--border);
}

.hero-stat-num {
  font-size: 32px;
  font-weight: 900;
  color: var(--primary);
  line-height: 1;
}

.hero-stat-label {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* Hero visual */
.hero-visual { position: relative; }

.phone-mockup {
  width: 280px;
  margin: 0 auto;
  background: #1a1a2e;
  border-radius: 40px;
  padding: 12px;
  box-shadow: 0 30px 80px rgba(0,0,0,.25), 0 0 0 1px rgba(255,255,255,.1);
  position: relative;
  z-index: 2;
}

.phone-screen {
  background: #fff;
  border-radius: 30px;
  overflow: hidden;
  aspect-ratio: 9/19;
  display: flex;
  flex-direction: column;
}

.phone-status {
  background: var(--primary);
  padding: 12px 16px 8px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: #fff;
  font-size: 11px;
}

.phone-content {
  flex: 1;
  padding: 16px;
  background: var(--bg-soft);
  overflow: hidden;
}

.phone-store-banner {
  background: linear-gradient(135deg, var(--primary), #ff8c5a);
  border-radius: 12px;
  padding: 16px;
  color: #fff;
  margin-bottom: 12px;
}

.phone-store-name { font-size: 16px; font-weight: 800; }
.phone-store-tag { font-size: 11px; opacity: .85; margin-top: 2px; }

.phone-menu-title { font-size: 13px; font-weight: 700; color: var(--secondary); margin-bottom: 8px; }

.phone-item {
  background: #fff;
  border-radius: 10px;
  padding: 10px;
  display: flex;
  gap: 10px;
  align-items: center;
  margin-bottom: 6px;
  box-shadow: var(--shadow-sm);
}

.phone-item-img {
  width: 42px; height: 42px;
  background: linear-gradient(135deg, #FFE082, #FF8A65);
  border-radius: 8px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
}

.phone-item-info { flex: 1; }
.phone-item-name { font-size: 12px; font-weight: 700; }
.phone-item-price { font-size: 11px; color: var(--primary); font-weight: 700; }

.phone-add-btn {
  width: 24px; height: 24px;
  background: var(--primary);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 16px;
  flex-shrink: 0;
}

.floating-card {
  position: absolute;
  background: #fff;
  border-radius: 14px;
  padding: 12px 16px;
  box-shadow: var(--shadow-lg);
  animation: float 3s ease-in-out infinite;
}

.floating-card-1 {
  top: 10%;
  right: -20px;
  min-width: 160px;
  animation-delay: 0s;
}

.floating-card-2 {
  bottom: 15%;
  left: -30px;
  min-width: 150px;
  animation-delay: 1.5s;
}

.floating-card-icon { font-size: 22px; margin-bottom: 4px; }
.floating-card-label { font-size: 11px; color: var(--text-muted); }
.floating-card-value { font-size: 16px; font-weight: 800; color: var(--secondary); }

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* ===== Features ===== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: 56px;
}

.feature-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  transition: all .3s ease;
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: var(--primary);
  transform: scaleX(0);
  transition: transform .3s ease;
  transform-origin: left;
}

.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.feature-card:hover::before { transform: scaleX(1); }

.feature-icon {
  width: 56px; height: 56px;
  border-radius: 14px;
  background: var(--primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  margin-bottom: 20px;
}

.feature-title {
  font-size: 20px;
  font-weight: 800;
  color: var(--secondary);
  margin-bottom: 10px;
}

.feature-desc {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.8;
}

.feature-list {
  list-style: none;
  margin-top: 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.feature-list li {
  font-size: 14px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 8px;
}

.feature-list li::before {
  content: '✓';
  color: var(--accent);
  font-weight: 800;
  font-size: 12px;
  flex-shrink: 0;
}

/* ===== How It Works ===== */
.how-it-works { background: var(--bg-soft); }

.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 56px;
  position: relative;
}

.steps::before {
  content: '';
  position: absolute;
  top: 36px;
  left: calc(12.5% + 16px);
  right: calc(12.5% + 16px);
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  z-index: 0;
}

.step {
  text-align: center;
  position: relative;
  z-index: 1;
}

.step-num {
  width: 72px; height: 72px;
  border-radius: 50%;
  background: #fff;
  border: 3px solid var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  font-weight: 900;
  color: var(--primary);
  margin: 0 auto 20px;
  box-shadow: var(--shadow-md);
}

.step-title {
  font-size: 17px;
  font-weight: 800;
  color: var(--secondary);
  margin-bottom: 8px;
}

.step-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ===== Pricing ===== */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: 56px;
  align-items: start;
}

.pricing-card {
  background: #fff;
  border: 2px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  transition: all .3s ease;
  position: relative;
}

.pricing-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.pricing-card.popular {
  border-color: var(--primary);
  transform: scale(1.04);
}

.pricing-card.popular:hover { transform: scale(1.04) translateY(-4px); }

.popular-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--primary);
  color: #fff;
  font-size: 12px;
  font-weight: 800;
  padding: 5px 18px;
  border-radius: 99px;
  white-space: nowrap;
}

.pricing-name {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-muted);
  letter-spacing: .08em;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.pricing-price {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin-bottom: 8px;
}

.pricing-amount {
  font-size: 52px;
  font-weight: 900;
  color: var(--secondary);
  line-height: 1;
}

.pricing-currency {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-muted);
}

.pricing-period {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.pricing-desc {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 28px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--border);
  min-height: 52px;
}

.pricing-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 32px;
}

.pricing-features li {
  font-size: 15px;
  color: var(--text);
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.pricing-features li .check {
  color: var(--accent);
  font-weight: 800;
  font-size: 14px;
  margin-top: 2px;
  flex-shrink: 0;
}

.pricing-features li .cross {
  color: #CBD5E0;
  font-size: 14px;
  margin-top: 2px;
  flex-shrink: 0;
}

.pricing-features li.disabled { color: var(--text-muted); }

.btn-pricing {
  width: 100%;
  justify-content: center;
  padding: 14px;
  font-size: 16px;
  border-radius: 10px;
}

/* ===== Testimonials ===== */
.testimonials { background: var(--bg-soft); }

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 56px;
}

.testimonial-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
}

.testimonial-stars {
  color: #F6AD55;
  font-size: 16px;
  letter-spacing: 2px;
  margin-bottom: 16px;
}

.testimonial-text {
  font-size: 15px;
  color: var(--text);
  line-height: 1.8;
  margin-bottom: 20px;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.author-avatar {
  width: 44px; height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 800;
  color: #fff;
  flex-shrink: 0;
}

.author-name { font-size: 15px; font-weight: 700; }
.author-role { font-size: 13px; color: var(--text-muted); }

/* ===== CTA ===== */
.cta-section {
  background: linear-gradient(135deg, var(--secondary) 0%, #1a3a5c 100%);
  padding: 96px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -100px; right: -100px;
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(255,107,53,.2) 0%, transparent 70%);
  border-radius: 50%;
}

.cta-section::after {
  content: '';
  position: absolute;
  bottom: -80px; left: -80px;
  width: 350px; height: 350px;
  background: radial-gradient(circle, rgba(72,187,120,.15) 0%, transparent 70%);
  border-radius: 50%;
}

.cta-section .container { position: relative; z-index: 1; }

.cta-title {
  font-size: clamp(30px, 4vw, 48px);
  font-weight: 900;
  color: #fff;
  margin-bottom: 20px;
}

.cta-desc {
  font-size: 18px;
  color: rgba(255,255,255,.75);
  margin-bottom: 40px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

.cta-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn-white {
  background: #fff;
  color: var(--primary);
  border-color: #fff;
}
.btn-white:hover { background: #f7f7f7; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,.2); }

.btn-ghost {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,.5);
}
.btn-ghost:hover { background: rgba(255,255,255,.1); transform: translateY(-2px); }

/* ===== Footer ===== */
.footer {
  background: var(--secondary);
  color: rgba(255,255,255,.75);
  padding: 72px 0 36px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand .logo { color: #fff; }
.footer-brand .logo-icon { background: var(--primary); }

.footer-tagline {
  font-size: 14px;
  margin-top: 16px;
  line-height: 1.8;
  color: rgba(255,255,255,.6);
}

.footer-heading {
  font-size: 14px;
  font-weight: 800;
  color: #fff;
  letter-spacing: .06em;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  font-size: 14px;
  color: rgba(255,255,255,.6);
  transition: color .2s;
}
.footer-links a:hover { color: var(--primary); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  padding-top: 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-bottom p { font-size: 13px; color: rgba(255,255,255,.5); }

/* ===== FAQ ===== */
.faq-list {
  max-width: 760px;
  margin: 56px auto 0;
}

.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
  transition: box-shadow .2s;
}

.faq-item:hover { box-shadow: var(--shadow-md); }

.faq-question {
  width: 100%;
  padding: 20px 24px;
  background: #fff;
  border: none;
  cursor: pointer;
  text-align: left;
  font-size: 16px;
  font-weight: 700;
  color: var(--secondary);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  transition: background .2s;
}

.faq-question:hover { background: var(--bg-soft); }

.faq-arrow {
  font-size: 12px;
  color: var(--primary);
  transition: transform .3s;
  flex-shrink: 0;
}

.faq-item.open .faq-arrow { transform: rotate(180deg); }

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease;
  background: var(--bg-soft);
}

.faq-answer-inner {
  padding: 0 24px 20px;
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.8;
}

.faq-item.open .faq-answer { max-height: 600px; }

/* ===== Scroll animations ===== */
.fade-up {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity .6s ease, transform .6s ease;
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}
/* Fallback: if JS fails or is slow, show content after 2s */
.js-loaded .fade-up {
  transition: opacity .6s ease, transform .6s ease;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .steps::before { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .section { padding: 64px 0; }

  .nav-links, .nav-cta { display: none; }
  .hamburger { display: flex; }

  .hero-inner { grid-template-columns: 1fr; text-align: center; gap: 48px; }
  .hero-actions { justify-content: center; }
  .hero-stats { justify-content: center; }
  .hero-visual { order: -1; }
  .phone-mockup { width: 220px; }
  .floating-card-1 { right: 0; }
  .floating-card-2 { left: 0; }

  .features-grid { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr; }
  .pricing-card.popular { transform: none; }
  .testimonials-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
}