:root {
  --orange: #f97316;
  --orange-light: #ffedd5;
  --orange-deep: #ea580c;
  --bg: #ffffff;
  --text: #1f2937;
  --text-light: #6b7280;
  --radius-card: 28px;
  --radius-btn: 40px;
  --shadow: 0 4px 20px rgba(249, 115, 22, 0.08);
  --shadow-hover: 0 12px 30px rgba(249, 115, 22, 0.2);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

ul {
  list-style: none;
}

.highlight {
  color: var(--orange);
}

/* Header */
header {
  position: sticky;
  top: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  z-index: 100;
  border-bottom: 1px solid #f3f4f6;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand img {
  height: 34px;
  width: auto;
  border-radius: 8px;
}

.brand-name {
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: 0.5px;
}

.brand-tag {
  background: var(--orange-light);
  color: var(--orange-deep);
  font-size: 0.75rem;
  padding: 2px 8px;
  border-radius: 12px;
  font-weight: 600;
}

.nav-links {
  display: flex;
  gap: 28px;
}

.nav-links a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-light);
  transition: color 0.2s;
  position: relative;
  padding-bottom: 4px;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--orange);
}

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--orange);
  border-radius: 2px;
}

.nav-right img {
  height: 32px;
  width: auto;
  opacity: 0.8;
}

/* Main Container */
main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px 80px;
}

/* Hero Section */
.hero {
  margin-top: 32px;
  background: linear-gradient(135deg, #fff7ed 0%, #ffedd5 100%);
  border: 2px solid var(--orange-light);
  border-radius: var(--radius-card);
  padding: 60px 50px;
  display: flex;
  align-items: center;
  gap: 40px;
  position: relative;
  overflow: hidden;
}

.hero-content {
  flex: 1;
  z-index: 1;
}

.hero h1 {
  font-size: 3rem;
  line-height: 1.2;
  font-weight: 900;
  margin-bottom: 20px;
  color: #111827;
}

.hero p {
  font-size: 1.15rem;
  color: var(--text-light);
  margin-bottom: 28px;
  max-width: 480px;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.hero-tag {
  background: #fff;
  padding: 8px 18px;
  border-radius: var(--radius-btn);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--orange-deep);
  box-shadow: 0 2px 10px rgba(0,0,0,0.04);
  display: flex;
  align-items: center;
  gap: 6px;
}

.hero-image {
  flex: 0 0 380px;
  z-index: 1;
}

.hero-image img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 20px;
  box-shadow: 0 10px 30px rgba(249, 115, 22, 0.15);
}

/* Section Common */
.section {
  margin-top: 64px;
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
}

.section-title {
  font-size: 1.8rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  gap: 10px;
}

.section-more {
  color: var(--orange);
  font-size: 0.95rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 4px;
}

.section-more:hover {
  text-decoration: underline;
}

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

.card {
  background: #fff;
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform 0.3s, box-shadow 0.3s;
  border: 1px solid #f3f4f6;
  display: flex;
  flex-direction: column;
}

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

.card-image {
  position: relative;
  height: 220px;
  background: linear-gradient(135deg, #ffedd5, #fed7aa);
  overflow: hidden;
}

.card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  transition: transform 0.4s;
}

.card:hover .card-image img {
  transform: scale(1.05);
}

.card-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  background: var(--orange);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(249, 115, 22, 0.4);
}

.card-play {
  position: absolute;
  bottom: 12px;
  right: 12px;
  width: 36px;
  height: 36px;
  background: rgba(255, 255, 255, 0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--orange);
  font-size: 1.2rem;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.card-info {
  padding: 16px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.card-title {
  font-weight: 700;
  font-size: 1.05rem;
  color: #111827;
}

.card-score {
  color: var(--orange);
  font-weight: 800;
  font-size: 0.95rem;
}

/* Split Layout */
.split-layout {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 24px;
}

.split-card {
  background: #fff;
  border-radius: var(--radius-card);
  padding: 32px;
  box-shadow: var(--shadow);
  border: 1px solid #f3f4f6;
}

.split-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
}

.split-title {
  font-size: 1.4rem;
  font-weight: 800;
}

.badge {
  background: var(--orange-light);
  color: var(--orange-deep);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 12px;
}

.rank-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.rank-item {
  display: flex;
  align-items: center;
  gap: 16px;
}

.rank-num {
  width: 28px;
  height: 28px;
  background: #f3f4f6;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.9rem;
  color: var(--text-light);
}

.rank-num.top {
  background: linear-gradient(135deg, #f97316, #ea580c);
  color: #fff;
}

.rank-name {
  flex: 1;
  font-weight: 600;
  font-size: 1rem;
}

.rank-score {
  font-weight: 800;
  color: var(--orange);
}

.update-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.update-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.95rem;
}

.update-dot {
  width: 8px;
  height: 8px;
  background: var(--orange);
  border-radius: 50%;
  flex-shrink: 0;
}

.update-ep {
  color: var(--text-light);
  font-size: 0.85rem;
  margin-left: auto;
}

.update-footer {
  margin-top: 28px;
  padding-top: 16px;
  border-top: 1px solid #f3f4f6;
  font-size: 0.9rem;
  color: var(--text-light);
  display: flex;
  align-items: center;
  gap: 6px;
}

/* FAQ & Reviews Sections */
.full-card {
  background: #fff;
  border-radius: var(--radius-card);
  padding: 40px;
  box-shadow: var(--shadow);
  border: 1px solid #f3f4f6;
}

.content-title-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 32px;
}

.orange-bar {
  width: 5px;
  height: 26px;
  background: var(--orange);
  border-radius: 4px;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.faq-item {
  background: #fafafa;
  padding: 24px;
  border-radius: 20px;
}

.faq-q {
  font-weight: 700;
  font-size: 1.1rem;
  margin-bottom: 10px;
  color: #111827;
}

.faq-a {
  color: var(--text-light);
  font-size: 0.95rem;
}

.review-card {
  background: #fafafa;
  padding: 24px;
  border-radius: 20px;
}

.review-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.avatar {
  width: 44px;
  height: 44px;
  background: var(--orange-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  color: var(--orange-deep);
  font-size: 1.2rem;
}

.review-name {
  font-weight: 700;
  font-size: 1rem;
}

.review-stars {
  color: #fbbf24;
  font-size: 0.85rem;
  letter-spacing: 2px;
}

.review-text {
  color: var(--text-light);
  font-size: 0.95rem;
}

/* Download Section */
.download-section {
  margin-top: 64px;
  background: linear-gradient(135deg, #fff7ed 0%, #ffedd5 100%);
  border: 2px solid var(--orange-light);
  border-radius: var(--radius-card);
  padding: 50px;
}

.download-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.download-title {
  font-size: 2rem;
  font-weight: 900;
  color: #111827;
}

.download-sub {
  color: var(--text-light);
  font-size: 1.1rem;
  margin-bottom: 40px;
  max-width: 600px;
}

.download-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 40px;
}

.download-feature {
  background: #fff;
  padding: 28px 24px;
  border-radius: 20px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.03);
}

.feature-icon {
  font-size: 2rem;
  margin-bottom: 16px;
}

.feature-title {
  font-weight: 800;
  font-size: 1.1rem;
  margin-bottom: 8px;
}

.feature-desc {
  color: var(--text-light);
  font-size: 0.9rem;
  line-height: 1.5;
}

.download-note {
  display: flex;
  gap: 16px;
  background: #fff;
  padding: 24px;
  border-radius: 20px;
  border-left: 5px solid var(--orange);
  font-size: 0.95rem;
  color: #4b5563;
}

/* Floating Button */
.floating-btn {
  position: fixed;
  bottom: 40px;
  right: 40px;
  background: var(--orange);
  color: #fff;
  padding: 16px 32px;
  border-radius: var(--radius-btn);
  font-weight: 800;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: 0 10px 30px rgba(249, 115, 22, 0.4);
  border: 3px solid #fff;
  transition: transform 0.3s, background 0.3s;
  z-index: 999;
}

.floating-btn:hover {
  background: var(--orange-deep);
  transform: scale(1.05);
}

/* Footer */
footer {
  background: #fafafa;
  border-top: 1px solid #f3f4f6;
  padding: 40px 20px;
  text-align: center;
  color: #9ca3af;
  font-size: 0.85rem;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: center;
}

footer a {
  color: #9ca3af;
  text-decoration: none;
}

footer a:hover {
  text-decoration: underline;
}

/* Responsive */
@media (max-width: 1024px) {
  .hero {
    padding: 40px;
    gap: 30px;
  }
  .hero h1 {
    font-size: 2.5rem;
  }
  .hero-image {
    flex: 0 0 300px;
  }
  .grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
  .download-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  .hero {
    flex-direction: column;
    padding: 32px 24px;
    text-align: center;
  }
  .hero h1 {
    font-size: 2rem;
  }
  .hero p {
    margin: 0 auto 24px;
  }
  .hero-tags {
    justify-content: center;
  }
  .hero-image {
    flex: auto;
    width: 100%;
    max-width: 340px;
  }
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
  .split-layout {
    grid-template-columns: 1fr;
  }
  .grid-2 {
    grid-template-columns: 1fr;
  }
  .download-section {
    padding: 32px 24px;
  }
  .download-title {
    font-size: 1.6rem;
  }
  .download-grid {
    grid-template-columns: 1fr;
  }
  .floating-btn {
    bottom: 20px;
    right: 20px;
    padding: 12px 24px;
    font-size: 0.95rem;
  }
  .full-card {
    padding: 24px;
  }
}

@media (max-width: 480px) {
  .grid-3 {
    grid-template-columns: 1fr;
  }
  .hero h1 {
    font-size: 1.8rem;
  }
  .section-title {
    font-size: 1.4rem;
  }
  .floating-btn {
    padding: 10px 18px;
    font-size: 0.85rem;
    border-width: 2px;
  }
}