/* ========== Reset & Base ========== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
:root {
  --bg-primary: #0A0A0A;
  --bg-secondary: #141414;
  --bg-card: #1C1C1E;
  --bg-card-hover: #242427;
  --text-primary: #FFFFFF;
  --text-secondary: #8E8E93;
  --text-tertiary: #48484A;
  --accent-pink: #FF2D55;
  --accent-pink-light: #FF6B6B;
  --accent-pink-dark: #D81E45;
  --accent-gradient: linear-gradient(135deg, #FF2D55 0%, #FF6B6B 100%);
  --accent-gradient-dark: linear-gradient(135deg, #D81E45 0%, #FF2D55 100%);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 32px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }

/* ========== Container ========== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ========== Navbar ========== */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: var(--transition);
}
.navbar.scrolled {
  background: rgba(10, 10, 10, 0.95);
  border-bottom-color: rgba(255, 45, 85, 0.15);
}
.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 1px;
}
.nav-logo img {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
}
.nav-logo span {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.nav-links {
  display: flex;
  gap: 32px;
  list-style: none;
}
.nav-links a {
  font-size: 16px;
  color: var(--text-secondary);
  transition: var(--transition);
  position: relative;
  font-weight: 800;
}
.nav-links a:hover {
  color: var(--text-primary);
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-pink);
  border-radius: 2px;
  transition: width var(--transition);
}
.nav-links a:hover::after { width: 100%; }
.nav-download-btn {
  background: var(--accent-gradient);
  color: #fff;
  border: none;
  padding: 8px 24px;
  border-radius: 100px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}
.nav-download-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(255, 45, 85, 0.4);
}
@media (max-width: 768px) {
  .nav-links { display: none; }
}

/* ========== Hero Section ========== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 100px 0 60px;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  z-index: 0;
  opacity: 0.35;
  background-image: url('./image/hero-bg.jpg');
  background-size: cover;
  background-position: center;
}
.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, transparent 0%, var(--bg-primary) 75%);
}
.hero-glow {
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 45, 85, 0.12) 0%, transparent 70%);
  filter: blur(60px);
  z-index: 0;
}
.hero-glow.top-right { top: -200px; right: -200px; }
.hero-glow.bottom-left { bottom: -300px; left: -200px; background: radial-gradient(circle, rgba(255, 107, 107, 0.08) 0%, transparent 70%); }
.hero .container {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
@media (max-width: 968px) {
  .hero .container { grid-template-columns: 1fr; text-align: center; gap: 40px; }
}
.hero-content { animation: fadeInLeft 0.8s ease-out; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 45, 85, 0.1);
  border: 1px solid rgba(255, 45, 85, 0.2);
  color: var(--accent-pink);
  padding: 6px 16px;
  border-radius: 100px;
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 24px;
}
.hero-badge .dot {
  width: 6px;
  height: 6px;
  background: var(--accent-pink);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}
.hero h1 {
  font-size: 48px;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 20px;
  letter-spacing: -1px;
}
.hero h1 .gradient-text {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-subtitle {
  font-size: 18px;
  color: var(--text-secondary);
  margin-bottom: 36px;
  line-height: 1.7;
}
@media (max-width: 768px) {
  .hero h1 { font-size: 32px; }
  .hero-subtitle { font-size: 15px; }
}
.hero-stats {
  display: flex;
  gap: 32px;
  margin-bottom: 36px;
}
.hero-stat .num {
  font-size: 28px;
  font-weight: 800;
  color: var(--text-primary);
}
.hero-stat .label {
  font-size: 13px;
  color: var(--text-secondary);
}
@media (max-width: 768px) {
  .hero-stats { justify-content: center; gap: 20px; }
  .hero-stat .num { font-size: 22px; }
}
.download-buttons {
  display: flex;
  flex-direction: column;
  gap: 16px;
  align-items: flex-start;
}
.download-row {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
@media (max-width: 768px) {
  .download-buttons { align-items: center; }
  .download-row { justify-content: center; }
}
.dl-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: var(--radius-md);
  font-size: 15px;
  font-weight: 600;
  transition: var(--transition);
  cursor: pointer;
  border: none;
}
.dl-btn.ios {
  background: #fff;
  color: #000;
}
.dl-btn.ios:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(255, 255, 255, 0.2);
}
.dl-btn.android {
  background: var(--bg-card);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.15);
}
.dl-btn.android:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent-pink);
  transform: translateY(-2px);
}
.dl-btn svg, .dl-btn img { width: 24px; height: 24px; object-fit: contain; }
.dl-btn .btn-text { display: flex; flex-direction: column; line-height: 1.2; }
.dl-btn .btn-text small { font-size: 11px; font-weight: 400; opacity: 0.7; }

/* QR Code Area */
.qr-area {
  margin-top: 24px;
  display: flex;
  align-items: center;
  gap: 16px;
}
@media (max-width: 768px) { .qr-area { justify-content: center; } }
.erweima {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 12px;
}
.qr-code {
  background: #fff;
  border-radius: var(--radius-sm);
  padding: 12px;
  flex-shrink: 0;
}
.qr-code img { width: 80px; height: 80px; }
.qr-code strong {
  color: #000;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.5;
}
.qr-text { font-size: 13px; color: var(--text-secondary); line-height: 1.5; }
.qr-text strong { color: var(--text-primary); font-size: 14px; }

/* ========== Phone Mockup ========== */
.phone-showcase {
  display: flex;
  justify-content: center;
  align-items: center;
  animation: fadeInRight 0.8s ease-out;
}
.phone-mockup {
  position: relative;
  /* width: 260px; */
  /* height: 528px; */
  border-radius: 40px;
  background: #000;
  border: 3px solid #2a2a2a;
  box-shadow: 0 0 60px rgba(255, 45, 85, 0.15), 0 20px 60px rgba(0, 0, 0, 0.5);
  padding: 12px;
  overflow: hidden;
}
.phone-screen {
  width: 100%;
  height: 100%;
  border-radius: 32px;
  overflow: hidden;
  background: var(--bg-primary);
  position: relative;
}
.phone-notch {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 20px;
  background: #000;
  border-radius: 0 0 14px 14px;
  z-index: 10;
}
/* Phone Screen - Home */
.phone-home {
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, #1a0a0e 0%, #0A0A0A 100%);
  display: flex;
  flex-direction: column;
  position: relative;
}
.phone-home .video-area {
  flex: 1;
  background: linear-gradient(135deg, #2a1020 0%, #0a0a0a 60%);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}
.phone-home .video-area::before {
  content: '';
  position: absolute;
  top: 30%; left: 30%;
  width: 40%; height: 30%;
  background: radial-gradient(ellipse, rgba(255,45,85,0.15) 0%, transparent 70%);
}
.phone-home .play-btn {
  width: 50px;
  height: 50px;
  background: rgba(255, 45, 85, 0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 2;
}
.phone-home .play-btn::after {
  content: '';
  width: 0; height: 0;
  border-left: 14px solid #fff;
  border-top: 9px solid transparent;
  border-bottom: 9px solid transparent;
  margin-left: 4px;
}
.phone-home .tabs {
  position: absolute;
  top: 28px; left: 0; right: 0;
  display: flex;
  justify-content: center;
  gap: 20px;
  font-size: 13px;
  z-index: 3;
}
.phone-home .tabs span { color: rgba(255,255,255,0.5); }
.phone-home .tabs span.active { color: #fff; font-weight: 600; position: relative; }
.phone-home .tabs span.active::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 50%;
  transform: translateX(-50%);
  width: 20px; height: 2px;
  background: var(--accent-pink);
  border-radius: 2px;
}
.phone-home .side-actions {
  position: absolute;
  right: 8px;
  bottom: 80px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  z-index: 3;
}
.phone-home .side-actions .act {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  font-size: 10px;
  color: rgba(255,255,255,0.7);
}
.phone-home .side-actions .act .icon-circle {
  width: 32px; height: 32px;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
}
.phone-home .info {
  position: absolute;
  bottom: 60px;
  left: 12px;
  z-index: 3;
}
.phone-home .info .drama-title {
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 4px;
}
.phone-home .info .tags {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}
.phone-home .info .tags span {
  font-size: 9px;
  padding: 2px 6px;
  background: rgba(255,255,255,0.1);
  border-radius: 4px;
  color: rgba(255,255,255,0.6);
}
.phone-home .tab-bar {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 50px;
  background: rgba(0,0,0,0.8);
  display: flex;
  align-items: center;
  justify-content: space-around;
  font-size: 10px;
  z-index: 5;
}
.phone-home .tab-bar .tab-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  color: rgba(255,255,255,0.4);
}
.phone-home .tab-bar .tab-item.active { color: var(--accent-pink); }
.phone-home .tab-bar .tab-item .tab-icon { font-size: 16px; }

/* Phone screens carousel */
.phone-screens-wrapper {
  position: relative;
  width: 260px;
  height: 540px;
}
.phone-screens-track {
  position: relative;
  width: 100%;
  height: 100%;
}
.phone-screen-slide {
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 0.6s ease;
}
.phone-screen-slide.active { opacity: 1; }

/* Screen 2 - Rankings */
.phone-rankings {
  width: 100%; height: 100%;
  background: var(--bg-primary);
  display: flex;
  flex-direction: column;
  padding: 36px 12px 50px;
}
.phone-rankings .search-bar {
  background: var(--bg-card);
  border-radius: 20px;
  padding: 8px 12px;
  font-size: 11px;
  color: var(--text-secondary);
  margin-bottom: 12px;
}
.phone-rankings .cat-pills {
  display: flex;
  gap: 6px;
  margin-bottom: 8px;
}
.phone-rankings .cat-pills span {
  font-size: 10px;
  padding: 3px 10px;
  border-radius: 12px;
  background: var(--bg-card);
  color: var(--text-secondary);
}
.phone-rankings .cat-pills span.active {
  background: var(--accent-pink);
  color: #fff;
}
.phone-rankings .sub-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 10px;
  font-size: 9px;
  overflow: hidden;
}
.phone-rankings .sub-tabs span { color: var(--text-secondary); white-space: nowrap; }
.phone-rankings .sub-tabs span.active { color: var(--accent-pink); font-weight: 600; }
.phone-rankings .rank-list {
  flex: 1;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.phone-rankings .rank-item {
  display: flex;
  gap: 8px;
  align-items: center;
}
.phone-rankings .rank-num {
  font-size: 16px;
  font-weight: 800;
  width: 20px;
  text-align: center;
}
.phone-rankings .rank-num.top1 { color: var(--accent-pink); }
.phone-rankings .rank-poster {
  width: 40px; height: 54px;
  border-radius: 6px;
  background: linear-gradient(135deg, #3a1020, #1a0a0e);
  flex-shrink: 0;
}
.phone-rankings .rank-info { flex: 1; }
.phone-rankings .rank-title { font-size: 11px; font-weight: 600; }
.phone-rankings .rank-meta { font-size: 9px; color: var(--text-secondary); }
.phone-rankings .rank-score { font-size: 14px; font-weight: 700; color: var(--accent-pink); }

/* Screen 3 - Welfare */
.phone-welfare {
  width: 100%; height: 100%;
  background: var(--bg-primary);
  display: flex;
  flex-direction: column;
  padding: 36px 12px 50px;
  overflow: hidden;
}
.phone-welfare .welfare-banner {
  background: linear-gradient(135deg, #FF2D55, #FF6B6B);
  border-radius: 12px;
  padding: 12px;
  margin-bottom: 12px;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.phone-welfare .welfare-banner .wb-title { font-size: 10px; opacity: 0.8; }
.phone-welfare .welfare-banner .wb-amount { font-size: 22px; font-weight: 800; margin: 2px 0; }
.phone-welfare .welfare-banner .wb-btn {
  display: inline-block;
  background: #fff;
  color: var(--accent-pink);
  font-size: 10px;
  padding: 4px 10px;
  border-radius: 12px;
  font-weight: 600;
}
.phone-welfare .welfare-section-title { font-size: 11px; font-weight: 600; margin-bottom: 8px; }
.phone-welfare .welfare-tasks {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.phone-welfare .welfare-task {
  background: var(--bg-card);
  border-radius: 8px;
  padding: 8px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.phone-welfare .task-info { display: flex; flex-direction: column; gap: 2px; }
.phone-welfare .task-time { font-size: 10px; font-weight: 600; }
.phone-welfare .task-reward { font-size: 9px; color: var(--accent-pink); font-weight: 600; }
.phone-welfare .task-progress {
  flex: 1;
  height: 4px;
  background: rgba(255,255,255,0.1);
  border-radius: 2px;
  margin: 0 8px;
  position: relative;
}
.phone-welfare .task-progress .fill {
  position: absolute;
  top: 0; left: 0;
  height: 100%;
  background: var(--accent-gradient);
  border-radius: 2px;
}
.phone-welfare .task-go {
  background: var(--accent-gradient);
  color: #fff;
  font-size: 9px;
  padding: 4px 10px;
  border-radius: 10px;
  font-weight: 600;
  white-space: nowrap;
}

/* Screen 4 - Mall */
.phone-mall {
  width: 100%; height: 100%;
  background: var(--bg-primary);
  display: flex;
  flex-direction: column;
  padding: 36px 12px 50px;
  overflow: hidden;
}
.phone-mall .mall-banner {
  background: linear-gradient(135deg, #FF6B6B, #FF9500);
  border-radius: 10px;
  padding: 10px;
  margin-bottom: 10px;
  font-size: 13px;
  font-weight: 700;
  color: #fff;
  text-align: center;
}
.phone-mall .mall-section { margin-bottom: 8px; }
.phone-mall .mall-section-title { font-size: 10px; font-weight: 600; margin-bottom: 6px; }
.phone-mall .mall-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
}
.phone-mall .mall-item {
  background: var(--bg-card);
  border-radius: 8px;
  padding: 6px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.phone-mall .mall-img {
  width: 100%;
  height: 36px;
  background: linear-gradient(135deg, #2a2a2a, #1a1a1a);
  border-radius: 6px;
}
.phone-mall .mall-name { font-size: 9px; }
.phone-mall .mall-price { font-size: 9px; color: var(--accent-pink); font-weight: 600; }

/* Screen 5 - Profile */
.phone-profile {
  width: 100%; height: 100%;
  background: var(--bg-primary);
  display: flex;
  flex-direction: column;
  padding: 36px 12px 50px;
  overflow: hidden;
}
.phone-profile .profile-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}
.phone-profile .avatar {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, #FF2D55, #FF6B6B);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
}
.phone-profile .user-name { font-size: 12px; font-weight: 600; }
.phone-profile .user-id { font-size: 9px; color: var(--text-secondary); }
.phone-profile .vip-card {
  background: linear-gradient(135deg, #1a1a2e, #16213e);
  border: 1px solid rgba(255, 215, 0, 0.2);
  border-radius: 10px;
  padding: 10px;
  margin-bottom: 10px;
}
.phone-profile .vip-title { font-size: 11px; font-weight: 700; color: #FFD700; }
.phone-profile .vip-desc { font-size: 9px; color: var(--text-secondary); margin: 2px 0 6px; }
.phone-profile .vip-btn {
  background: linear-gradient(135deg, #FFD700, #FFA500);
  color: #000;
  font-size: 9px;
  padding: 4px 12px;
  border-radius: 10px;
  font-weight: 700;
  display: inline-block;
}
.phone-profile .earnings {
  background: var(--bg-card);
  border-radius: 8px;
  padding: 8px;
  margin-bottom: 10px;
  display: flex;
  justify-content: space-around;
}
.phone-profile .earn-item { text-align: center; }
.phone-profile .earn-label { font-size: 8px; color: var(--text-secondary); }
.phone-profile .earn-val { font-size: 13px; font-weight: 700; }
.phone-profile .services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}
.phone-profile .service-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}
.phone-profile .service-icon {
  width: 28px; height: 28px;
  border-radius: 8px;
  background: var(--bg-card);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
}
.phone-profile .service-name { font-size: 8px; color: var(--text-secondary); }

/* Phone indicators */
.phone-indicators {
  display: flex;
  justify-content: center;
  gap: 6px;
  margin-top: 20px;
}
.phone-indicators .ind {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: rgba(255,255,255,0.2);
  transition: var(--transition);
  cursor: pointer;
}
.phone-indicators .ind.active {
  background: var(--accent-pink);
  width: 20px;
  border-radius: 3px;
}

/* ========== Section Common ========== */
.section {
  padding: 100px 0;
  position: relative;
}
.section-title {
  text-align: center;
  margin-bottom: 60px;
}
.section-title h2 {
  font-size: 36px;
  font-weight: 800;
  margin-bottom: 12px;
  letter-spacing: -0.5px;
}
.section-title p {
  font-size: 16px;
  color: var(--text-secondary);
}
@media (max-width: 768px) {
  .section-title h2 { font-size: 26px; }
  .section-title p { font-size: 14px; }
  .section { padding: 60px 0; }
}
.section-title .gradient-text {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ========== Features Section ========== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
@media (max-width: 968px) { .features-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .features-grid { grid-template-columns: 1fr; } }
.feature-card {
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.feature-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--accent-gradient);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}
.feature-card:hover {
  background: var(--bg-card-hover);
  transform: translateY(-4px);
  border-color: rgba(255, 45, 85, 0.2);
  box-shadow: 0 20px 40px rgba(0,0,0,0.3);
}
.feature-card:hover::before { transform: scaleX(1); }
.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 20px;
}
.feature-icon.pink { background: rgba(255, 45, 85, 0.12); color: var(--accent-pink); }
.feature-icon.purple { background: rgba(149, 82, 242, 0.12); color: #9552F2; }
.feature-icon.orange { background: rgba(255, 149, 0, 0.12); color: #FF9500; }
.feature-icon.green { background: rgba(52, 199, 89, 0.12); color: #34C759; }
.feature-icon.blue { background: rgba(48, 176, 255, 0.12); color: #30B0FF; }
.feature-icon.gold { background: rgba(255, 215, 0, 0.12); color: #FFD700; }
.feature-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
}
.feature-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ========== Earn Section ========== */
.earn-section {
  background: var(--bg-secondary);
  position: relative;
  overflow: hidden;
}
.earn-section::before {
  content: '';
  position: absolute;
  top: -50%; right: -20%;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(255, 45, 85, 0.06) 0%, transparent 70%);
  border-radius: 50%;
}
.earn-section .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 1;
}
@media (max-width: 968px) {
  .earn-section .container { grid-template-columns: 1fr; gap: 40px; }
}
.earn-content h2 {
  font-size: 36px;
  font-weight: 800;
  margin-bottom: 16px;
  line-height: 1.3;
}
.earn-content h2 .gradient-text {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.earn-content > p {
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: 32px;
  line-height: 1.7;
}
.earn-steps {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.earn-step {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.earn-step-num {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: rgba(255, 45, 85, 0.1);
  border: 1px solid rgba(255, 45, 85, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
  color: var(--accent-pink);
  flex-shrink: 0;
}
.earn-step-text h4 { font-size: 16px; font-weight: 600; margin-bottom: 4px; }
.earn-step-text p { font-size: 14px; color: var(--text-secondary); }
.earn-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}
.earn-visual img {
  max-width: 360px;
  border-radius: var(--radius-xl);
}
.earn-visual::before {
  content: '';
  position: absolute;
  inset: -20px;
  background: radial-gradient(circle, rgba(255,45,85,0.1) 0%, transparent 70%);
  border-radius: 50%;
}

/* ========== Screenshots Section ========== */
.screenshots-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
@media (max-width: 968px) { .screenshots-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 640px) { .screenshots-grid { grid-template-columns: repeat(2, 1fr); } }
.screenshot-item {
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
  cursor: pointer;
}
.screenshot-item:hover {
  transform: translateY(-6px) scale(1.02);
  border-color: rgba(255, 45, 85, 0.2);
  box-shadow: 0 20px 50px rgba(0,0,0,0.4);
}
.screenshot-phone {
  width: 100%;
  /* aspect-ratio: 9/19; */
  border-radius: var(--radius-md);
  overflow: hidden;
  position: relative;
}
.screenshot-label {
  padding: 12px;
  text-align: center;
}
.screenshot-label h4 { font-size: 14px; font-weight: 600; margin-bottom: 2px; }
.screenshot-label p { font-size: 12px; color: var(--text-secondary); }

/* ========== Download CTA Section ========== */
.download-cta {
  position: relative;
  text-align: center;
  overflow: hidden;
  padding: 120px 0;
}
.download-cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(255, 45, 85, 0.08) 0%, transparent 60%);
}
.download-cta .container { position: relative; z-index: 1; }
.download-cta h2 {
  font-size: 42px;
  font-weight: 800;
  margin-bottom: 16px;
}
.download-cta h2 .gradient-text {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.download-cta > .container > p {
  font-size: 18px;
  color: var(--text-secondary);
  margin-bottom: 40px;
}
.download-cta .download-buttons {
  align-items: center;
  margin-bottom: 20px;
}
.download-cta .qr-area { justify-content: center; }
@media (max-width: 768px) {
  .download-cta h2 { font-size: 28px; }
  .download-cta > .container > p { font-size: 15px; }
}

/* ========== Footer ========== */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 60px 0 30px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
@media (max-width: 768px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
}
.footer-brand h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.footer-brand h3 img { width: 28px; height: 28px; border-radius: 6px; }
.footer-brand p { font-size: 14px; color: var(--text-secondary); line-height: 1.7; }
.footer-col h4 { font-size: 15px; font-weight: 600; margin-bottom: 16px; }
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 8px; }
.footer-col a { font-size: 13px; color: var(--text-secondary); transition: var(--transition); }
.footer-col a:hover { color: var(--accent-pink); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding-top: 20px;
  text-align: center;
  font-size: 12px;
  color: var(--text-tertiary);
}

/* ========== Animations ========== */
@keyframes fadeInLeft {
  from { opacity: 0; transform: translateX(-30px); }
  to { opacity: 1; transform: translateX(0); }
}
@keyframes fadeInRight {
  from { opacity: 0; transform: translateX(30px); }
  to { opacity: 1; transform: translateX(0); }
}
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ========== Sticky Mobile Download Bar ========== */
.sticky-download {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  background: rgba(10, 10, 10, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid rgba(255,45,85,0.2);
  padding: 12px 16px;
  z-index: 999;
  display: none;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.sticky-download .sd-info { display: flex; align-items: center; gap: 8px; }
.sticky-download .sd-icon { width: 36px; height: 36px; border-radius: 8px; background: var(--accent-gradient); display: flex; align-items: center; justify-content: center; font-size: 18px; }
.sticky-download .sd-text { font-size: 13px; }
.sticky-download .sd-text small { display: block; font-size: 11px; color: var(--text-secondary); }
.sticky-download .sd-btn {
  background: var(--accent-gradient);
  color: #fff;
  border: none;
  padding: 10px 28px;
  border-radius: 100px;
  font-size: 14px;
  font-weight: 700;
  white-space: nowrap;
  cursor: pointer;
}
@media (max-width: 768px) {
  .sticky-download { display: flex; }
  body { padding-bottom: 70px; }
}

/* ========== Responsive ========== */
@media (max-width: 768px) {
  .hero { padding-top: 80px; min-height: auto; padding-bottom: 40px; }
  .phone-mockup, .phone-screens-wrapper { width: 220px; height: 460px; }
  .earn-visual img { max-width: 260px; }
}

/* ========== Sub Page (Help / About) ========== */
.sub-page {
  padding: 120px 0 80px;
  min-height: 100vh;
}
.sub-page-header {
  text-align: center;
  margin-bottom: 48px;
}
.sub-page-header h1 {
  font-size: 42px;
  font-weight: 800;
  margin-bottom: 12px;
  letter-spacing: -0.5px;
}
.sub-page-header p {
  font-size: 16px;
  color: var(--text-secondary);
}
.sub-page-header .gradient-text {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
@media (max-width: 768px) {
  .sub-page { padding: 90px 0 60px; }
  .sub-page-header h1 { font-size: 28px; }
  .sub-page-header p { font-size: 14px; }
}

/* Layout: 左侧 tabs + 右侧 content */
.sub-page-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 32px;
  align-items: flex-start;
}
@media (max-width: 768px) {
  .sub-page-layout {
    grid-template-columns: 1fr;
    gap: 20px;
  }
}

/* 左侧 Tabs */
.sub-tabs {
  position: sticky;
  top: 88px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-lg);
  padding: 12px;
}
@media (max-width: 768px) {
  .sub-tabs {
    position: static;
    flex-direction: row;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding: 8px;
    gap: 8px;
  }
  .sub-tabs::-webkit-scrollbar { display: none; }
}
.sub-tab {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  border-radius: var(--radius-md);
  font-size: 15px;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}
.sub-tab:hover {
  background: rgba(255,255,255,0.04);
  color: var(--text-primary);
}
.sub-tab.active {
  background: var(--accent-gradient);
  color: #fff;
  box-shadow: 0 4px 20px rgba(255, 45, 85, 0.3);
}
.sub-tab-icon {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  border-radius: 6px;
  background: rgba(255,255,255,0.08);
  flex-shrink: 0;
}
.sub-tab.active .sub-tab-icon {
  background: rgba(255,255,255,0.2);
}

/* 右侧 Content */
.sub-content {
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-lg);
  padding: 40px;
  min-height: 400px;
}
@media (max-width: 768px) {
  .sub-content { padding: 24px 20px; }
}
.sub-panel {
  display: none;
  animation: fadeInUp 0.4s ease-out;
}
.sub-panel.active { display: block; }
.sub-panel h2 {
  font-size: 28px;
  font-weight: 800;
  margin-bottom: 8px;
}
@media (max-width: 768px) { .sub-panel h2 { font-size: 22px; } }
.sub-intro {
  font-size: 15px;
  color: var(--text-secondary);
  margin-bottom: 32px;
  padding-bottom: 20px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

/* 使用指南 steps */
.guide-step-item {
  display: flex;
  gap: 20px;
  padding: 24px 0;
  border-bottom: 1px solid rgba(255,255,255,0.04);
}
.guide-step-item:last-child { border-bottom: none; }
.guide-step-num {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255, 45, 85, 0.1);
  border: 1px solid rgba(255, 45, 85, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 800;
  color: var(--accent-pink);
  flex-shrink: 0;
}
.guide-step-body h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 6px;
}
.guide-step-body p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* FAQ accordion */
.faq-item {
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  overflow: hidden;
  background: rgba(255,255,255,0.02);
}
.faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}
.faq-q:hover { color: var(--accent-pink); }
.faq-arrow {
  font-size: 22px;
  color: var(--accent-pink);
  transition: transform 0.3s ease;
  flex-shrink: 0;
  margin-left: 12px;
}
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
  padding: 0 24px;
}
.faq-a p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
  padding-bottom: 4px;
}
.faq-item.open .faq-a {
  max-height: 300px;
  padding: 0 24px 18px;
}
.faq-item.open .faq-arrow { transform: rotate(45deg); }
@media (max-width: 768px) {
  .faq-q { padding: 14px 18px; font-size: 14px; }
  .faq-a { padding: 0 18px; }
  .faq-item.open .faq-a { padding: 0 18px 14px; }
}

/* 关于我们 */
.about-block {
  margin-bottom: 36px;
}
.about-block:last-child { margin-bottom: 0; }
.about-block h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 12px;
  padding-left: 14px;
  border-left: 3px solid var(--accent-pink);
}
.about-block p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
}
.about-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 16px;
}
.about-stat {
  text-align: center;
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-md);
  padding: 20px 12px;
}
.about-stat .num {
  font-size: 24px;
  font-weight: 800;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.about-stat .label {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 4px;
}
@media (max-width: 640px) {
  .about-stats { grid-template-columns: repeat(2, 1fr); }
}

/* 用户协议 */
.agreement-content h3 {
  font-size: 17px;
  font-weight: 700;
  margin: 24px 0 10px;
  color: var(--text-primary);
}
.agreement-content h3:first-child { margin-top: 0; }
.agreement-content p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 8px;
  padding-left: 16px;
  position: relative;
}
.agreement-content p::before {
  content: '';
  position: absolute;
  left: 4px;
  top: 10px;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--accent-pink);
}