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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Noto Sans TC', 'Inter', sans-serif;
  background: #ffffff;
  color: #2d2d2d;
  line-height: 1.7;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
}

a {
  text-decoration: none;
  color: inherit;
}

/* ===== DESIGN TOKENS ===== */
:root {
  --navy: #1a2a4a;
  --navy-light: #2a3d6b;
  --gold: #c9a84c;
  --gold-light: #e8d48b;
  --gold-dark: #a88832;
  --accent: #3b82f6;
  --bg-cream: #faf9f6;
  --bg-light: #f5f3ee;
  --text-primary: #1a1a1a;
  --text-secondary: #555555;
  --text-muted: #888888;
  --white: #ffffff;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.12);
  --shadow-gold: 0 4px 20px rgba(201,168,76,0.25);
  --radius: 12px;
  --radius-lg: 20px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --max-width: 1100px;
}

/* ===== UTILITIES ===== */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 80px 0;
}

.section-title {
  font-size: 2rem;
  font-weight: 800;
  color: var(--navy);
  text-align: center;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  text-align: center;
  margin-bottom: 48px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== CTA BUTTON ===== */
.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: linear-gradient(135deg, var(--gold), var(--gold-dark));
  color: var(--white);
  font-size: 1.15rem;
  font-weight: 700;
  padding: 16px 40px;
  border-radius: 50px;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: var(--shadow-gold);
  letter-spacing: 0.02em;
}

.cta-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(201,168,76,0.4);
  background: linear-gradient(135deg, var(--gold-dark), var(--gold));
}

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

.cta-btn .btn-icon {
  font-size: 1.3rem;
}

/* ===== HERO ===== */
.hero {
  background: linear-gradient(160deg, #ffffff 0%, var(--bg-cream) 50%, #f0ebe0 100%);
  padding: 100px 0 80px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -200px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(201,168,76,0.08) 0%, transparent 70%);
  border-radius: 50%;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -100px;
  left: -100px;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(26,42,74,0.05) 0%, transparent 70%);
  border-radius: 50%;
}

.hero .container {
  display: flex;
  align-items: center;
  gap: 60px;
  position: relative;
  z-index: 1;
}

.hero-text {
  flex: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--navy);
  color: var(--gold-light);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 50px;
  margin-bottom: 20px;
  letter-spacing: 0.05em;
}

.hero-title {
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--navy);
  line-height: 1.3;
  margin-bottom: 8px;
  letter-spacing: -0.02em;
}

.hero-title-en {
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 20px;
  font-style: italic;
}

.hero-tagline {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--gold-dark);
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.hero-tagline span {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.hero-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  margin-bottom: 28px;
  line-height: 1.8;
}

.hero-badges {
  display: flex;
  gap: 10px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.exam-badge {
  background: var(--white);
  border: 2px solid var(--navy);
  color: var(--navy);
  font-size: 0.85rem;
  font-weight: 700;
  padding: 6px 18px;
  border-radius: 50px;
  letter-spacing: 0.03em;
}

.hero-image {
  flex: 0 0 340px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-cover-img {
  width: 100%;
  max-width: 340px;
  height: auto;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  transition: var(--transition);
}

.hero-cover-img:hover {
  transform: scale(1.03) rotate(-1deg);
}

.hero-scope {
  margin-bottom: 28px;
}

.scope-note {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 12px;
  font-weight: 500;
}

.scope-badges {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

/* ===== PAIN POINTS ===== */
.pain-section {
  background: var(--bg-cream);
}

.pain-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  max-width: 800px;
  margin: 0 auto;
}

.pain-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 28px 24px;
  display: flex;
  align-items: flex-start;
  gap: 16px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid rgba(0,0,0,0.04);
}

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

.pain-icon {
  font-size: 2rem;
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #fff3f3;
  border-radius: 12px;
}

.pain-card h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.pain-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ===== WHY CONCISE ===== */
.concise-section {
  background: var(--white);
}

.concise-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  max-width: 900px;
  margin: 0 auto;
  align-items: start;
}

.concise-card.main-card {
  background: linear-gradient(145deg, var(--navy), var(--navy-light));
  color: var(--white);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  box-shadow: var(--shadow-lg);
}

.concise-icon {
  font-size: 2.5rem;
  margin-bottom: 16px;
}

.concise-card.main-card h3 {
  font-size: 1.25rem;
  font-weight: 800;
  margin-bottom: 16px;
  color: var(--gold-light);
}

.concise-card.main-card p {
  font-size: 0.95rem;
  line-height: 1.8;
  color: rgba(255,255,255,0.85);
}

.concise-features {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.concise-feature {
  background: var(--bg-cream);
  border-radius: var(--radius);
  padding: 20px 22px;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  transition: var(--transition);
  border: 1px solid rgba(0,0,0,0.04);
}

.concise-feature:hover {
  transform: translateX(6px);
  box-shadow: var(--shadow-sm);
}

.concise-feature-icon {
  font-size: 1.6rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.concise-feature h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 4px;
}

.concise-feature p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ===== FEATURES ===== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid rgba(0,0,0,0.04);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--gold), var(--navy));
  opacity: 0;
  transition: var(--transition);
}

.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

.feature-card:hover::before {
  opacity: 1;
}

.feature-icon {
  font-size: 2.5rem;
  margin-bottom: 16px;
}

.feature-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Preview page image */
.preview-photo {
  margin-bottom: 20px;
  text-align: center;
}

.preview-page-img {
  width: 100%;
  max-width: 600px;
  height: auto;
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  border: 1px solid #e0ddd5;
}

.preview-block {
  margin-bottom: 32px;
}

.preview-block:last-child {
  margin-bottom: 0;
}

/* ===== CONTENT PREVIEW ===== */
.preview-section {
  background: var(--bg-cream);
}

.preview-tabs {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.preview-tab {
  background: var(--white);
  border: 2px solid #e0ddd5;
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 10px 24px;
  border-radius: 50px;
  cursor: pointer;
  transition: var(--transition);
}

.preview-tab:hover {
  border-color: var(--gold);
  color: var(--navy);
}

.preview-tab.active {
  background: var(--navy);
  border-color: var(--navy);
  color: var(--gold-light);
}

.preview-content {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-md);
  max-width: 800px;
  margin: 0 auto;
  min-height: 280px;
  border: 1px solid rgba(0,0,0,0.04);
}

.preview-panel {
  display: none;
}

.preview-panel.active {
  display: block;
  animation: fadeIn 0.4s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.preview-label {
  display: inline-block;
  background: var(--navy);
  color: var(--gold-light);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 50px;
  margin-bottom: 16px;
  letter-spacing: 0.05em;
}

.preview-content h3 {
  font-size: 1.2rem;
  color: var(--navy);
  font-weight: 700;
  margin-bottom: 20px;
}

.preview-line {
  padding: 10px 0;
  border-bottom: 1px solid #f0ede6;
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.preview-line:last-child {
  border-bottom: none;
}

.preview-line .speaker {
  font-weight: 700;
  color: var(--navy);
  white-space: nowrap;
  min-width: 80px;
}

.preview-line .text-en {
  color: var(--text-primary);
  font-size: 0.95rem;
}

.preview-line .text-zh {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-top: 2px;
}

.phrase-item {
  padding: 14px 0;
  border-bottom: 1px solid #f0ede6;
}

.phrase-item:last-child {
  border-bottom: none;
}

.phrase-situation {
  font-weight: 700;
  color: var(--gold-dark);
  font-size: 0.85rem;
  margin-bottom: 4px;
}

.phrase-en {
  color: var(--text-primary);
  font-size: 1rem;
  font-weight: 600;
}

.phrase-zh {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-top: 2px;
}

/* ===== WHO IS THIS FOR ===== */
.audience-list {
  max-width: 700px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.audience-item {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--white);
  padding: 20px 28px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid rgba(0,0,0,0.04);
}

.audience-item:hover {
  transform: translateX(8px);
  box-shadow: var(--shadow-md);
}

.audience-check {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--gold), var(--gold-dark));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1rem;
  font-weight: 700;
  flex-shrink: 0;
}

.audience-item span {
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--text-primary);
}

/* ===== STATS ===== */
.stats-section {
  background: linear-gradient(160deg, var(--navy) 0%, var(--navy-light) 100%);
  color: var(--white);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  text-align: center;
}

.stat-item {
  padding: 20px;
}

.stat-number {
  font-size: 3rem;
  font-weight: 900;
  color: var(--gold-light);
  line-height: 1;
  margin-bottom: 8px;
}

.stat-number .stat-suffix {
  font-size: 1.5rem;
  font-weight: 700;
}

.stat-label {
  font-size: 0.95rem;
  color: rgba(255,255,255,0.8);
  font-weight: 500;
}

/* ===== MID CTA ===== */
.mid-cta {
  background: var(--bg-cream);
  text-align: center;
  padding: 60px 0;
}

.mid-cta h2 {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--navy);
  margin-bottom: 12px;
}

.mid-cta p {
  font-size: 1.05rem;
  color: var(--text-secondary);
  margin-bottom: 28px;
}

/* ===== TESTIMONIALS ===== */
.testimonials-section {
  overflow: hidden;
  background: var(--white);
}

.testimonials-track-wrapper {
  position: relative;
  margin: 0 -24px;
  padding: 20px 0;
}

.testimonials-track {
  display: flex;
  gap: 24px;
  padding-right: 24px;
  animation: scrollTestimonials 100s linear infinite;
  -webkit-animation: scrollTestimonials 100s linear infinite;
  width: max-content;
  will-change: transform;
}

@media (hover: hover) {
  .testimonials-track:hover {
    animation-play-state: paused;
    -webkit-animation-play-state: paused;
  }
}

@-webkit-keyframes scrollTestimonials {
  0% { -webkit-transform: translateX(0); transform: translateX(0); }
  100% { -webkit-transform: translateX(-50%); transform: translateX(-50%); }
}

@keyframes scrollTestimonials {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

.testimonial-card {
  flex: 0 0 340px;
  background: var(--white);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  border: 1px solid #f0ede6;
  transition: var(--transition);
}

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

.testimonial-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}

.testimonial-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  background: var(--bg-cream);
  flex-shrink: 0;
}

.testimonial-info h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
}

.testimonial-info .role {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.testimonial-stars {
  color: var(--gold);
  font-size: 0.95rem;
  margin-bottom: 6px;
  letter-spacing: 2px;
}

.testimonial-tag {
  display: inline-block;
  background: linear-gradient(135deg, var(--gold-light), #f5e6b8);
  color: var(--navy);
  font-size: 0.72rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 20px;
  margin-bottom: 10px;
  letter-spacing: 0.02em;
}

.testimonial-text {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.7;
  font-style: italic;
}

/* ===== FAQ ===== */
.faq-section {
  background: var(--bg-cream);
}

.faq-list {
  max-width: 700px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(0,0,0,0.04);
}

.faq-question {
  width: 100%;
  background: none;
  border: none;
  padding: 20px 24px;
  text-align: left;
  font-size: 1rem;
  font-weight: 600;
  color: var(--navy);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  transition: var(--transition);
  font-family: inherit;
}

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

.faq-arrow {
  font-size: 1.2rem;
  transition: transform 0.3s ease;
  color: var(--gold-dark);
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
}

.faq-item.open .faq-answer {
  max-height: 300px;
}

.faq-answer-inner {
  padding: 0 24px 20px;
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ===== FINAL CTA ===== */
.final-cta {
  background: linear-gradient(160deg, var(--navy) 0%, var(--navy-light) 100%);
  text-align: center;
  padding: 80px 0;
}

.final-cta h2 {
  font-size: 2rem;
  font-weight: 800;
  color: var(--white);
  margin-bottom: 12px;
}

.final-cta p {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.8);
  margin-bottom: 32px;
}

.final-cta .cta-btn {
  font-size: 1.25rem;
  padding: 18px 48px;
}

/* ===== FLOATING CTA ===== */
.floating-cta {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: 1000;
  opacity: 0;
  transform: translateY(20px);
  transition: var(--transition);
  pointer-events: none;
}

.floating-cta.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: all;
}

.floating-cta .cta-btn {
  padding: 14px 32px;
  font-size: 1rem;
  box-shadow: 0 8px 32px rgba(201,168,76,0.4);
}

.floating-cta .cta-btn::before {
  content: '';
  position: absolute;
  inset: -3px;
  border-radius: 50px;
  background: linear-gradient(135deg, var(--gold), var(--gold-dark));
  opacity: 0;
  z-index: -1;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 0; transform: scale(1); }
  50% { opacity: 0.3; transform: scale(1.08); }
}

/* ===== FOOTER ===== */
.footer {
  background: var(--navy);
  color: rgba(255,255,255,0.5);
  text-align: center;
  padding: 24px 0;
  font-size: 0.85rem;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  .hero .container {
    flex-direction: column-reverse;
    text-align: center;
  }

  .hero-image {
    flex: 0 0 auto;
    width: 100%;
    margin-bottom: 24px;
  }

  .hero-cover-img {
    width: 90%;
    max-width: 380px;
  }

  .hero-tagline {
    justify-content: center;
  }

  .hero-badges {
    justify-content: center;
  }

  .hero-text {
    display: flex;
    flex-direction: column;
    align-items: center;
  }

  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .pain-grid {
    grid-template-columns: 1fr;
  }

  .concise-grid {
    grid-template-columns: 1fr;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .hero-title {
    font-size: 2rem;
  }

  .section-title {
    font-size: 1.6rem;
  }
}

@media (max-width: 600px) {
  .section {
    padding: 56px 0;
  }

  .hero {
    padding: 72px 0 56px;
  }

  .hero-title {
    font-size: 1.7rem;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .stat-number {
    font-size: 2.2rem;
  }

  .preview-content {
    padding: 24px;
  }

  .preview-line {
    flex-direction: column;
    gap: 4px;
  }

  .preview-line .speaker {
    min-width: unset;
  }

  .testimonial-card {
    flex: 0 0 290px;
  }

  .floating-cta {
    bottom: 16px;
    right: 16px;
  }
}

@media (max-width: 480px) {
  .testimonial-card {
    flex: 0 0 280px;
    padding: 20px;
  }

  .hero-cover-img {
    max-width: 280px;
  }
}