/* ============ CSS VARIABLES ============ */
    :root {
      --bg-primary: #FAFBFC;
      --bg-secondary: #FFFFFF;
      --bg-card: rgba(255,255,255,0.85);
      --bg-card-hover: rgba(255,255,255,1);
      --text-primary: #0F172A;
      --text-secondary: #475569;
      --text-muted: #94A3B8;
      --gold-400: #60A5FA;
      --gold-500: #3B82F6;
      --gold-600: #2563EB;
      --cyan-400: #818CF8;
      --cyan-500: #6366F1;
      --cyan-600: #4F46E5;
      --green-50: #EFF6FF;
      --green-100: #DBEAFE;
      --green-400: #60A5FA;
      --green-500: #3B82F6;
      --green-600: #2563EB;
      --accent-gradient: linear-gradient(135deg, var(--green-500), var(--gold-400));
      --gold-gradient: linear-gradient(135deg, #60A5FA 0%, #3B82F6 50%, #2563EB 100%);
      --cyan-gradient: linear-gradient(135deg, #818CF8 0%, #6366F1 50%, #4F46E5 100%);
      --green-gradient: linear-gradient(135deg, #60A5FA 0%, #3B82F6 50%, #2563EB 100%);
      --font-display: 'Outfit', 'Noto Sans SC', sans-serif;
      --font-body: 'DM Sans', 'Noto Sans SC', sans-serif;
      --radius-lg: 12px;
      --radius-md: 8px;
      --radius-sm: 6px;
      --shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
      --shadow-md: 0 4px 12px rgba(0,0,0,0.03), 0 12px 32px rgba(0,0,0,0.02);
      --shadow-lg: 0 8px 24px rgba(0,0,0,0.04), 0 24px 64px rgba(0,0,0,0.04);
      --shadow-xl: 0 8px 24px rgba(0,0,0,0.06), 0 32px 80px rgba(0,0,0,0.08);
      --transition-fast: 200ms cubic-bezier(0.4, 0, 0.2, 1);
      --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
      --glow-blue: 0 0 24px rgba(59,130,246,0.2), 0 0 4px rgba(59,130,246,0.1);
      --glow-indigo: 0 0 24px rgba(99,102,241,0.2), 0 0 4px rgba(99,102,241,0.1);
      --border-subtle: rgba(59,130,246,0.08);
      --border-hover: rgba(59,130,246,0.35);
      --tech-border: 1px solid rgba(59,130,246,0.12);
      --tech-glow: 0 0 0 1px rgba(59,130,246,0.06), 0 4px 20px rgba(59,130,246,0.08);
    }

    /* ============ RESET & BASE ============ */
    *, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
    html { scroll-behavior: smooth; font-size: 16px; }
    body {
      font-family: var(--font-body);
      background: var(--bg-primary);
      background-image: 
        radial-gradient(ellipse 80% 50% at 50% 0%, rgba(59,130,246,0.08) 0%, transparent 50%),
        radial-gradient(ellipse 60% 40% at 80% 100%, rgba(99,102,241,0.05) 0%, transparent 50%),
        radial-gradient(circle at 20% 50%, rgba(59,130,246,0.03) 0%, transparent 40%);
      background-attachment: fixed;
      color: var(--text-primary);
      overflow-x: hidden;
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
    }
    a { color: inherit; text-decoration: none; cursor: pointer; }
    img { max-width: 100%; display: block; }
    button, [role="button"], .btn-primary, .btn-secondary, .btn-download,
    .nav-cta, .feature-card, .social-card, .security-card, .earn-card,
    .sticky-bottom-btn { cursor: pointer; }
    :focus-visible {
      outline: 2px solid var(--green-500);
      outline-offset: 2px;
      border-radius: 4px;
    }
    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
      }
      .reveal { opacity: 1; transform: none; }
    }

    /* ============ NOISE OVERLAY ============ */
    body::before {
      content: '';
      position: fixed;
      top: 0; left: 0; width: 100%; height: 100%;
      background: linear-gradient(180deg, rgba(59,130,246,0.02) 0%, transparent 40%, transparent 60%, rgba(99,102,241,0.015) 100%);
      pointer-events: none;
      z-index: 0;
    }

    /* ============ SCROLLBAR ============ */
    ::-webkit-scrollbar { width: 6px; }
    ::-webkit-scrollbar-track { background: var(--bg-primary); }
    ::-webkit-scrollbar-thumb { background: var(--green-400); border-radius: 3px; }
    ::-webkit-scrollbar-thumb:hover { background: var(--green-500); }

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

    /* ============ NAVIGATION ============ */
    .nav {
      position: fixed; top: 0; left: 0; right: 0;
      z-index: 1000;
      padding: 20px 0;
      transition: all var(--transition-base);
    }
    .nav.scrolled {
      background: rgba(255,255,255,0.92);
      backdrop-filter: blur(20px);
      padding: 12px 0;
      border-bottom: 1px solid var(--border-subtle);
      box-shadow: 0 2px 20px rgba(0,0,0,0.04), 0 1px 0 0 rgba(59,130,246,0.06);
    }
    .nav .container {
      display: flex; align-items: center; justify-content: space-between;
    }
    .nav-logo {
      font-family: var(--font-display);
      font-weight: 800; font-size: 1.6rem;
      letter-spacing: -0.02em;
      background: var(--accent-gradient);
      -webkit-background-clip: text; -webkit-text-fill-color: transparent;
      background-clip: text;
      transition: transform 0.3s, filter 0.3s;
      position: relative;
      z-index: 1002;
    }
    .nav-logo:hover {
      transform: scale(1.05);
      filter: drop-shadow(0 0 6px rgba(59,130,246,0.25));
    }
    .nav-links { display: flex; gap: 36px; align-items: center; }
    .nav-links a {
      font-size: 0.88rem; color: var(--text-secondary);
      font-weight: 500; letter-spacing: 0.02em;
      transition: color 0.3s;
      font-family: var(--font-display);
      position: relative;
    }
    .nav-links a:not(.nav-cta)::after {
      content: '';
      position: absolute;
      bottom: -4px; left: 0;
      width: 0; height: 2px;
      background: var(--accent-gradient);
      border-radius: 1px;
      transition: width 0.3s;
    }
    .nav-links a:not(.nav-cta):hover::after,
    .nav-links a:not(.nav-cta).active::after { width: 100%; }
    .nav-links a:hover,
    .nav-links a.active { color: var(--text-primary); }
    .nav-cta {
      padding: 10px 28px;
      background: var(--gold-gradient);
      color: #1A1A2E !important;
      border-radius: 100px;
      font-weight: 700 !important;
      font-size: 0.85rem !important;
      transition: transform 0.3s, box-shadow 0.3s;
      box-shadow: var(--glow-gold);
    }
    .nav-cta:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 30px rgba(99,102,241,0.3);
    }

    /* ============ HERO ============ */
    .hero {
      min-height: 70vh;
      display: flex; align-items: center;
      position: relative;
      padding: 100px 0 60px;
      overflow: hidden;
    }
    .hero-glow {
      position: absolute;
      width: 600px; height: 600px;
      border-radius: 50%;
      filter: blur(150px);
      opacity: 0.25;
      pointer-events: none;
    }
    .hero-glow--gold {
      top: -200px; right: -200px;
      width: 700px; height: 700px;
      background: radial-gradient(circle, rgba(99,102,241,0.15) 0%, transparent 70%);
    }
    .hero-glow--green {
      bottom: -150px; left: -150px;
      width: 600px; height: 600px;
      background: radial-gradient(circle, rgba(59,130,246,0.10) 0%, transparent 70%);
    }
    .hero .container {
      display: flex;
      flex-direction: column;
      align-items: center;
      text-align: center;
      position: relative; z-index: 2;
      max-width: 800px;
    }
    .hero-badge {
      display: inline-flex; align-items: center; gap: 8px;
      padding: 6px 18px;
      background: rgba(59,130,246,0.08);
      border: 1px solid rgba(59,130,246,0.15);
      border-radius: 50px;
      font-size: 0.8rem;
      font-weight: 600;
      color: var(--text-primary);
      margin-bottom: 20px;
      backdrop-filter: blur(10px);
      animation: fadeInUp 0.8s ease both;
      box-shadow: 0 2px 12px rgba(59,130,246,0.08);
    }
    .hero-badge .dot {
      width: 8px; height: 8px;
      background: var(--gold-400);
      border-radius: 50%;
      animation: pulse 2s ease-in-out infinite;
    }
    @keyframes pulse {
      0%, 100% { opacity: 1; transform: scale(1); }
      50% { opacity: 0.5; transform: scale(0.8); }
    }
    .hero h1 {
      font-family: var(--font-display);
      font-weight: 900;
      font-size: clamp(2.8rem, 5vw, 4.2rem);
      line-height: 1.1;
      letter-spacing: -0.03em;
      margin-bottom: 24px;
      animation: fadeInUp 0.8s ease 0.1s both;
    }
    .hero h1 .highlight-gold {
      background: var(--gold-gradient);
      -webkit-background-clip: text; -webkit-text-fill-color: transparent;
      background-clip: text;
    }
    .hero h1 .highlight-cyan {
      background: var(--cyan-gradient);
      -webkit-background-clip: text; -webkit-text-fill-color: transparent;
      background-clip: text;
    }
    .hero-desc {
      font-size: 1.1rem;
      color: var(--text-secondary);
      max-width: 480px;
      line-height: 1.8;
      margin-bottom: 40px;
      animation: fadeInUp 0.8s ease 0.2s both;
    }
    .hero-actions {
      display: flex; gap: 16px; flex-wrap: wrap;
      animation: fadeInUp 0.8s ease 0.3s both;
    }
    .btn-primary {
      display: inline-flex; align-items: center; justify-content: center; gap: 10px;
      padding: 16px 36px;
      min-width: 200px;
      background: var(--gold-gradient);
      color: #1A1A2E;
      border-radius: 100px;
      font-family: var(--font-display);
      font-weight: 700;
      font-size: 1rem;
      border: none; cursor: pointer;
      transition: all 0.3s;
      position: relative;
      overflow: hidden;
      box-shadow: var(--glow-gold);
    }
    .btn-primary::after {
      content: '';
      position: absolute;
      top: 0; left: -100%; width: 100%; height: 100%;
      background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
      transition: left 0.5s;
    }
    .btn-primary:hover::after { left: 100%; }
    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 30px rgba(99,102,241,0.25);
    }
    .btn-primary--ios {
      background: linear-gradient(135deg, #333 0%, #111 100%);
      color: #fff;
      box-shadow: 0 4px 20px rgba(0,0,0,0.3);
    }
    .btn-primary--ios:hover {
      transform: translateY(-2px) scale(1.03);
      box-shadow: 0 12px 40px rgba(0,0,0,0.5);
    }
    .btn-download--ios {
      background: linear-gradient(135deg, #333 0%, #111 100%);
      color: #fff;
      border: 1px solid rgba(255,255,255,0.1);
    }
    .btn-download--ios:hover {
      background: linear-gradient(135deg, #444 0%, #222 100%);
      box-shadow: 0 12px 40px rgba(0,0,0,0.5);
    }
    .btn-secondary {
      display: inline-flex; align-items: center; gap: 10px;
      padding: 16px 36px;
      background: transparent;
      color: var(--text-primary);
      border: 1px solid var(--border-subtle);
      border-radius: 100px;
      font-family: var(--font-display);
      font-weight: 600;
      font-size: 1rem;
      cursor: pointer;
      transition: all 0.3s;
    }
    .btn-secondary:hover {
      border-color: var(--border-hover);
      color: var(--green-600);
      background: rgba(59,130,246,0.04);
      transform: translateY(-2px);
      box-shadow: var(--tech-glow);
    }

    /* Hero Phone Mockup */
    .hero-visual {
      display: flex; justify-content: center; align-items: center;
      position: relative;
      animation: fadeInUp 0.8s ease 0.4s both;
    }
    .phone-mockup {
      width: 280px; height: 560px;
      background: linear-gradient(180deg, #1a1a24 0%, #12121a 100%);
      border-radius: 40px;
      border: 2px solid rgba(255,255,255,0.1);
      padding: 12px;
      position: relative;
      box-shadow:
        0 0 0 1px rgba(255,255,255,0.05),
        0 25px 80px rgba(0,0,0,0.35),
        0 0 80px rgba(59,130,246,0.06);
      animation: phoneFloat 6s ease-in-out infinite;
    }
    @keyframes phoneFloat {
      0%, 100% { transform: translateY(0); }
      50% { transform: translateY(-10px); }
    }
    .phone-screen {
      width: 100%; height: 100%;
      background: linear-gradient(180deg, #0d1117 0%, #161b22 100%);
      border-radius: 30px;
      overflow: hidden;
      position: relative;
    }
    .phone-notch {
      width: 100px; height: 28px;
      background: #0d1117;
      border-radius: 0 0 16px 16px;
      margin: 0 auto;
      position: relative; z-index: 2;
    }
    .phone-content {
      padding: 16px;
      color: #f0ece4;
    }
    .phone-header {
      display: flex; justify-content: space-between; align-items: center;
      margin-bottom: 20px;
    }
    .phone-header-title {
      font-family: var(--font-display);
      font-weight: 700; font-size: 1.1rem;
    }
    .phone-header-avatar {
      width: 32px; height: 32px;
      border-radius: 50%;
      background: var(--gold-gradient);
    }
    .phone-chat-item {
      display: flex; align-items: center; gap: 12px;
      padding: 12px;
      background: rgba(255,255,255,0.03);
      border-radius: 14px;
      margin-bottom: 8px;
      border: 1px solid rgba(255,255,255,0.04);
      animation: slideInChat 0.6s ease both;
    }
    .phone-chat-item:nth-child(2) { animation-delay: 0.5s; }
    .phone-chat-item:nth-child(3) { animation-delay: 1s; }
    .phone-chat-item:nth-child(4) { animation-delay: 1.5s; }
    @keyframes slideInChat {
      from { opacity: 0; transform: translateX(20px); }
      to { opacity: 1; transform: translateX(0); }
    }
    .chat-avatar {
      width: 40px; height: 40px; min-width: 40px;
      border-radius: 12px;
      display: flex; align-items: center; justify-content: center;
      font-size: 1.2rem;
    }
    .chat-avatar svg { width: 20px; height: 20px; }
    .chat-avatar--gold svg { stroke: var(--gold-400); }
    .chat-avatar--cyan svg { stroke: var(--cyan-400); }
    .chat-avatar--purple svg { stroke: #a855f7; }
    .chat-avatar--gold { background: rgba(99,102,241,0.15); }
    .chat-avatar--cyan { background: rgba(59,130,246,0.15); }
    .chat-avatar--purple { background: rgba(168,85,247,0.15); }
    .chat-info { flex: 1; min-width: 0; }
    .chat-name {
      font-family: var(--font-display);
      font-weight: 600; font-size: 0.82rem;
      margin-bottom: 2px;
    }
    .chat-msg {
      font-size: 0.72rem; color: #8a8690;
      white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
    }
    .chat-meta { text-align: right; }
    .chat-time { font-size: 0.65rem; color: #6b6777; }
    .chat-badge-earn {
      display: inline-block;
      padding: 2px 8px;
      background: rgba(99,102,241,0.12);
      color: var(--gold-400);
      font-size: 0.62rem;
      border-radius: 100px;
      margin-top: 4px;
      font-weight: 600;
    }
    /* Chat conversation UI */
    .chat-conv-header {
      display: flex; align-items: center; gap: 10px;
      padding: 10px 0 12px;
      border-bottom: 1px solid rgba(255,255,255,0.06);
      margin-bottom: 14px;
    }
    .chat-conv-back { font-size: 0.9rem; color: #8a8690; }
    .chat-conv-avatar {
      width: 30px; height: 30px; border-radius: 50%;
      background: var(--gold-gradient);
      display: flex; align-items: center; justify-content: center;
    }
    .chat-conv-avatar svg { width: 16px; height: 16px; stroke: #fff; }
    .chat-conv-name {
      font-family: var(--font-display);
      font-weight: 700; font-size: 0.88rem; flex: 1;
    }
    .chat-conv-status {
      font-size: 0.6rem; color: #4ADE80;
      display: flex; align-items: center; gap: 4px;
    }
    .chat-conv-status::before {
      content: ''; width: 5px; height: 5px;
      background: #4ADE80; border-radius: 50%;
    }
    .chat-conv-body {
      display: flex; flex-direction: column; gap: 10px;
      padding-bottom: 10px;
    }
    .chat-time-divider {
      text-align: center; font-size: 0.55rem;
      color: #6b6777; padding: 4px 0;
    }
    .chat-bubble-row {
      display: flex; gap: 8px; align-items: flex-end;
      animation: slideInChat 0.5s ease both;
    }
    .chat-bubble-row--right {
      flex-direction: row-reverse;
    }
    .chat-bubble-row:nth-child(2) { animation-delay: 0.3s; }
    .chat-bubble-row:nth-child(3) { animation-delay: 0.6s; }
    .chat-bubble-row:nth-child(4) { animation-delay: 0.9s; }
    .chat-bubble-row:nth-child(5) { animation-delay: 1.2s; }
    .chat-bubble-row:nth-child(6) { animation-delay: 1.5s; }
    .chat-bubble-row:nth-child(7) { animation-delay: 1.8s; }
    .chat-bubble-mini-avatar {
      width: 24px; height: 24px; min-width: 24px;
      border-radius: 50%;
      display: flex; align-items: center; justify-content: center;
      font-size: 0.55rem; font-weight: 700; color: #fff;
    }
    .chat-bubble {
      max-width: 75%; padding: 8px 12px;
      border-radius: 14px;
      font-size: 0.7rem; line-height: 1.5;
      color: #e8e4dc;
    }
    .chat-bubble--left {
      background: rgba(255,255,255,0.08);
      border-bottom-left-radius: 4px;
    }
    .chat-bubble--right {
      background: linear-gradient(135deg, rgba(59,130,246,0.3), rgba(59,130,246,0.2));
      border-bottom-right-radius: 4px;
      color: #d1fae5;
    }
    .chat-bubble--gold {
      background: linear-gradient(135deg, rgba(99,102,241,0.2), rgba(99,102,241,0.12));
      border: 1px solid rgba(99,102,241,0.15);
      text-align: center; padding: 10px 14px;
    }
    .chat-bubble--gold .coin-amount {
      font-family: var(--font-display);
      font-weight: 800; font-size: 1rem;
      color: var(--gold-400); display: block;
      margin-top: 2px;
    }
    .chat-input-bar {
      display: flex; align-items: center; gap: 8px;
      padding: 10px 0 4px;
      border-top: 1px solid rgba(255,255,255,0.06);
      margin-top: auto;
    }
    .chat-input-field {
      flex: 1; padding: 8px 12px;
      background: rgba(255,255,255,0.06);
      border: 1px solid rgba(255,255,255,0.08);
      border-radius: 20px;
      font-size: 0.65rem; color: #6b6777;
    }
    .chat-input-send {
      width: 28px; height: 28px;
      background: var(--green-gradient);
      border-radius: 50%;
      display: flex; align-items: center; justify-content: center;
    }
    .chat-input-send svg { width: 14px; height: 14px; stroke: #fff; }

    /* Floating coins around phone */
    .floating-coin { display: none; }
    
    
    
    
    
    
      50% { transform: translateY(-15px) rotate(10deg); }
    }

    /* ============ STATS BAR ============ */
    .stats-bar {
      padding: 48px 0;
      background: rgba(255,255,255,0.4);
      border-top: 1px solid var(--border-subtle);
      border-bottom: 1px solid var(--border-subtle);
    }
    .stats-bar .container {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .stat-item {
      text-align: center;
      padding: 24px 16px;
      background: var(--bg-card);
      border: var(--tech-border);
      border-radius: var(--radius-md);
      transition: all var(--transition-fast);
      box-shadow: var(--shadow-sm);
      position: relative;
      overflow: hidden;
    }
    .stat-item:hover {
      transform: translateY(-2px);
      box-shadow: var(--shadow-md);
      border-color: var(--border-hover);
    }
    .stat-number {
      font-family: var(--font-display);
      font-weight: 800;
      font-size: 2.4rem;
      background: var(--accent-gradient);
      -webkit-background-clip: text; -webkit-text-fill-color: transparent;
      background-clip: text;
      margin-bottom: 6px;
      transition: filter 0.3s;
    }
    .stat-label {
      font-size: 0.82rem;
      color: var(--text-secondary);
      font-family: var(--font-display);
      font-weight: 500;
      letter-spacing: 0.02em;
    }

    /* ============ SECTION COMMON ============ */
    .section { padding: 140px 0; position: relative; }
    .section-label {
      display: inline-flex; align-items: center; gap: 8px;
      font-family: var(--font-display);
      font-weight: 600; font-size: 0.82rem;
      letter-spacing: 0.1em; text-transform: uppercase;
      margin-bottom: 20px;
    }
    .section-label--gold { color: var(--gold-600); }
    .section-label--cyan { color: var(--green-600); }
    .section-label .line {
      width: 24px; height: 2px;
      border-radius: 1px;
    }
    .section-label--gold .line { background: var(--gold-600); }
    .section-label--cyan .line { background: var(--cyan-400); }
    .section-title {
      font-family: var(--font-display);
      font-weight: 800;
      font-size: clamp(2rem, 3.5vw, 3rem);
      line-height: 1.12;
      letter-spacing: -0.04em;
      margin-bottom: 20px;
    }
    .section-desc {
      font-size: 1.05rem;
      color: var(--text-secondary);
      max-width: 560px;
      line-height: 1.8;
      letter-spacing: 0.01em;
    }

    /* ============ FEATURES ============ */
    .features-grid {
      display: grid;
      grid-template-columns: 1.2fr 1fr;
      grid-template-rows: auto auto;
      gap: 24px;
      margin-top: 60px;
    }
    .features-grid > .feature-card:first-child {
      grid-row: 1 / 3;
      display: flex;
      flex-direction: column;
      justify-content: center;
    }
    .feature-card {
      background: var(--bg-card);
      backdrop-filter: blur(12px);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-lg);
      padding: 40px 32px;
      transition: all var(--transition-base);
      position: relative;
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }
    .feature-card:hover {
      background: var(--bg-card-hover);
      border-color: var(--border-hover);
      transform: translateY(-4px);
      box-shadow: var(--shadow-lg);
    }
    .feature-icon {
      width: 56px; height: 56px;
      border-radius: 16px;
      display: flex; align-items: center; justify-content: center;
      font-size: 1.5rem;
      margin-bottom: 24px;
    }
    .feature-icon svg, .how-icon svg, .social-feature-icon svg,
    .security-icon svg, .earn-emoji svg { width: 24px; height: 24px; }
    .feature-icon svg { stroke: var(--text-primary); }
    .feature-icon--gold svg { stroke: var(--gold-600); }
    .feature-icon--cyan svg { stroke: var(--green-600); }
    .feature-icon--purple svg { stroke: #a855f7; }
    .how-icon svg { stroke: var(--text-primary); width: 28px; height: 28px; }
    .social-feature-icon svg { stroke: var(--green-600); width: 22px; height: 22px; }
    .security-icon svg { stroke: var(--text-primary); width: 28px; height: 28px; }
    .security-icon {
      width: 52px; height: 52px;
      border-radius: 14px;
      display: flex; align-items: center; justify-content: center;
      margin: 0 auto 16px;
      background: rgba(59,130,246,0.06);
      border: 1px solid rgba(59,130,246,0.12);
      font-size: 0;
    }
    .earn-emoji svg { stroke: var(--gold-600); width: 28px; height: 28px; }
    .feature-icon--gold { background: rgba(99,102,241,0.08); border: 1px solid rgba(99,102,241,0.12); }
    .feature-icon--cyan { background: rgba(59,130,246,0.06); border: 1px solid rgba(59,130,246,0.12); }
    .feature-icon--purple { background: rgba(168,85,247,0.06); border: 1px solid rgba(168,85,247,0.12); }
    .feature-title {
      font-family: var(--font-display);
      font-weight: 700;
      font-size: 1.15rem;
      margin-bottom: 10px;
    }
    .feature-text {
      font-size: 0.9rem;
      color: var(--text-secondary);
      line-height: 1.7;
    }
    .feature-tag {
      display: inline-block;
      margin-top: 16px;
      padding: 4px 12px;
      border-radius: 100px;
      font-size: 0.72rem;
      font-weight: 600;
      font-family: var(--font-display);
    }
    .feature-tag--gold {
      background: rgba(99,102,241,0.1);
      color: var(--gold-600);
    }
    .feature-tag--cyan {
      background: rgba(59,130,246,0.08);
      color: var(--green-600);
    }

    /* ============ HOW IT WORKS ============ */
    .how-section {
      background: var(--bg-secondary);
    }
    .how-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      margin-top: 60px;
    }
    .how-step {
      text-align: center;
      padding: 36px 24px;
      position: relative;
      background: var(--bg-card);
      backdrop-filter: blur(8px);
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-subtle);
      transition: all var(--transition-base);
      box-shadow: var(--shadow-sm);
    }
    .how-step:hover {
      background: var(--bg-card-hover);
      transform: translateY(-4px);
      box-shadow: var(--shadow-lg);
      border-color: var(--border-hover);
    }
    .how-step::after {
      content: '';
      position: absolute;
      right: -16px; top: 50%;
      transform: translateY(-50%);
      width: 8px; height: 8px;
      border-top: 2px solid var(--green-400);
      border-right: 2px solid var(--green-400);
      transform: translateY(-50%) rotate(45deg);
    }
    .how-step:last-child::after { display: none; }
    .how-number {
      font-family: var(--font-display);
      font-weight: 900;
      font-size: 2.4rem;
      width: 48px; height: 48px;
      display: flex; align-items: center; justify-content: center;
      margin: 0 auto 16px;
      background: var(--accent-gradient);
      -webkit-background-clip: text; -webkit-text-fill-color: transparent;
      background-clip: text;
      opacity: 0.25;
    }
    .how-icon {
      width: 64px; height: 64px;
      border-radius: 50%;
      margin: 0 auto 20px;
      display: flex; align-items: center; justify-content: center;
      font-size: 1.6rem;
      background: rgba(59,130,246,0.06);
      border: var(--tech-border);
    }
    .how-title {
      font-family: var(--font-display);
      font-weight: 700;
      font-size: 1.05rem;
      margin-bottom: 8px;
    }
    .how-desc {
      font-size: 0.85rem;
      color: var(--text-secondary);
      line-height: 1.6;
    }

    /* ============ EARN MODEL ============ */
    .earn-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 24px;
      margin-top: 60px;
    }
    .earn-card {
      background: var(--bg-card);
      backdrop-filter: blur(12px);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-lg);
      padding: 40px;
      position: relative;
      overflow: hidden;
      transition: all var(--transition-base);
      box-shadow: var(--shadow-md);
    }
    .earn-card:hover {
      background: var(--bg-card-hover);
      border-color: var(--border-hover);
      transform: translateY(-4px);
      box-shadow: var(--shadow-lg);
    }
    .earn-card--featured {
      grid-column: 1 / -1;
      background: linear-gradient(135deg, rgba(99,102,241,0.08) 0%, rgba(59,130,246,0.06) 100%);
      border: 1px solid rgba(99,102,241,0.2);
      box-shadow: 0 8px 32px rgba(99,102,241,0.08), 0 4px 16px rgba(0,0,0,0.03);
    }
    .earn-card--featured .earn-card-inner {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }
    .earn-emoji {
      width: 52px; height: 52px;
      border-radius: 14px;
      display: flex; align-items: center; justify-content: center;
      margin-bottom: 20px;
      background: rgba(99,102,241,0.06);
      border: 1px solid rgba(99,102,241,0.12);
      font-size: 0;
    }
    .earn-title {
      font-family: var(--font-display);
      font-weight: 700;
      font-size: 1.3rem;
      margin-bottom: 12px;
      letter-spacing: -0.02em;
    }
    .earn-desc {
      font-size: 1.05rem;
      color: var(--text-secondary);
      line-height: 1.8;
      max-width: 560px;
      letter-spacing: 0.01em;
    }
    .earn-highlight {
      display: inline-flex; align-items: center; gap: 8px;
      padding: 8px 16px;
      background: rgba(99,102,241,0.08);
      border: 1px solid rgba(99,102,241,0.12);
      border-radius: var(--radius-sm);
      font-family: var(--font-display);
      font-weight: 700;
      color: var(--gold-600);
      font-size: 0.9rem;
    }
    .earn-tiers {
      display: flex; flex-direction: column; gap: 10px;
    }
    .earn-tier {
      display: flex; align-items: center; justify-content: space-between;
      padding: 14px 18px 14px 22px;
      background: rgba(255,255,255,0.6);
      border-radius: var(--radius-sm);
      border: var(--tech-border);
      transition: all 0.3s;
      position: relative;
      overflow: hidden;
    }
    .earn-tier::before {
      content: '';
      position: absolute;
      top: 4px; left: 0; bottom: 4px;
      width: 3px;
      border-radius: 0 2px 2px 0;
      background: var(--accent-gradient);
      opacity: 0.4;
      transition: opacity 0.3s;
    }
    .earn-tier:hover {
      background: rgba(255,255,255,0.9);
      border-color: var(--border-hover);
      box-shadow: var(--tech-glow);
    }
    .earn-tier:hover::before { opacity: 1; }
    .earn-tier-left {
      display: flex; align-items: center; gap: 10px;
    }
    .earn-tier-icon { font-size: 1.1rem; }
    .earn-tier-name {
      font-family: var(--font-display);
      font-weight: 600; font-size: 0.88rem;
    }
    .earn-tier-steps {
      font-size: 0.78rem; color: var(--text-secondary);
    }
    .earn-tier-reward {
      font-family: var(--font-display);
      font-weight: 700;
      color: var(--gold-600);
      font-size: 0.9rem;
    }

    /* Featured card income showcase */
    .income-showcase {
      display: flex; flex-direction: column; gap: 16px;
    }
    .income-item {
      display: flex; justify-content: space-between; align-items: center;
      padding: 16px 20px 16px 24px;
      background: rgba(255,255,255,0.6);
      border-radius: var(--radius-md);
      border: var(--tech-border);
      transition: all 0.3s;
      position: relative;
      overflow: hidden;
    }
    .income-item::before {
      content: '';
      position: absolute;
      top: 4px; left: 0; bottom: 4px;
      width: 3px;
      border-radius: 0 2px 2px 0;
      background: var(--accent-gradient);
      opacity: 0.4;
      transition: opacity 0.3s;
    }
    .income-item:hover {
      background: rgba(255,255,255,0.9);
      transform: translateX(4px);
      border-color: var(--border-hover);
      box-shadow: var(--tech-glow);
    }
    .income-item:hover::before { opacity: 1; }
    .income-label {
      font-family: var(--font-display);
      font-weight: 500; font-size: 0.9rem;
    }
    .income-value {
      font-family: var(--font-display);
      font-weight: 800; font-size: 1.3rem;
    }
    .income-value--gold { color: var(--gold-600); }
    .income-value--cyan { color: var(--green-600); }
    .income-total {
      padding: 24px;
      background: linear-gradient(135deg, rgba(99,102,241,0.1), rgba(59,130,246,0.08));
      border-radius: var(--radius-md);
      border: 1px solid rgba(99,102,241,0.18);
      text-align: center;
      box-shadow: 0 4px 20px rgba(99,102,241,0.06);
    }
    .income-total-label {
      font-size: 0.85rem;
      color: var(--text-secondary);
      margin-bottom: 4px;
      font-family: var(--font-display);
    }
    .income-total-value {
      font-family: var(--font-display);
      font-weight: 900;
      font-size: 2rem;
      background: var(--accent-gradient);
      -webkit-background-clip: text; -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    /* VIP Tier List - Clean Progress Bar Layout */
    .vip-tier-list {
      display: flex;
      flex-direction: column;
      gap: 18px;
      margin-top: 28px;
    }
    .vip-tier-row {
      display: flex;
      align-items: center;
      gap: 16px;
      padding: 16px 20px;
      background: rgba(255,255,255,0.6);
      border-radius: 10px;
      border: 1px solid rgba(59,130,246,0.1);
      transition: all 0.3s;
    }
    .vip-tier-row:hover {
      background: rgba(255,255,255,0.9);
      border-color: rgba(59,130,246,0.2);
      transform: translateX(4px);
      box-shadow: 0 4px 16px rgba(59,130,246,0.08);
    }
    .vip-tier-info {
      display: flex;
      align-items: center;
      gap: 10px;
      min-width: 140px;
      flex-shrink: 0;
    }
    .vip-tier-label {
      font-family: var(--font-display);
      font-weight: 600;
      font-size: 0.95rem;
      color: var(--text-primary);
    }
    .vip-tier-bar {
      flex: 1;
      height: 8px;
      background: rgba(59,130,246,0.08);
      border-radius: 4px;
      overflow: hidden;
      position: relative;
    }
    .vip-tier-fill {
      height: 100%;
      border-radius: 4px;
      transition: width 0.6s ease-out;
      box-shadow: 0 0 8px rgba(255,255,255,0.4) inset;
    }
    .vip-tier-value {
      font-family: var(--font-display);
      font-weight: 800;
      font-size: 1.1rem;
      color: var(--text-primary);
      min-width: 60px;
      text-align: right;
    }
    .security-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
      margin-top: 60px;
    }
    .security-card {
      padding: 32px 24px;
      background: var(--bg-card);
      backdrop-filter: blur(12px);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-lg);
      text-align: center;
      transition: all var(--transition-base);
      box-shadow: var(--shadow-md);
    }
    .security-card { position: relative; overflow: hidden; }
    .security-card:hover {
      background: var(--bg-card-hover);
      border-color: var(--border-hover);
      transform: translateY(-4px);
      box-shadow: var(--shadow-lg);
    }
    .security-title {
      font-family: var(--font-display);
      font-weight: 700;
      font-size: 1.05rem;
      margin-bottom: 8px;
    }
    .security-desc {
      font-size: 0.85rem;
      color: var(--text-secondary);
      line-height: 1.6;
    }

    /* ============ CTA SECTION ============ */
    .cta-section {
      padding: 140px 0;
      text-align: center;
      position: relative;
      overflow: hidden;
    }
    .cta-section::before {
      content: '';
      position: absolute;
      top: 50%; left: 50%;
      transform: translate(-50%, -50%);
      width: 1000px; height: 1000px;
      background: 
        radial-gradient(circle at 30% 40%, rgba(59,130,246,0.08) 0%, transparent 50%),
        radial-gradient(circle at 70% 60%, rgba(99,102,241,0.06) 0%, transparent 50%);
      pointer-events: none;
    }
    .cta-title {
      font-family: var(--font-display);
      font-weight: 900;
      font-size: clamp(2.2rem, 4vw, 3.2rem);
      line-height: 1.15;
      letter-spacing: -0.03em;
      margin-bottom: 20px;
      position: relative; z-index: 2;
    }
    .cta-desc {
      font-size: 1.1rem;
      color: var(--text-secondary);
      margin-bottom: 40px;
      max-width: 500px;
      margin-left: auto; margin-right: auto;
      position: relative; z-index: 2;
    }
    .cta-buttons {
      display: flex; gap: 16px;
      justify-content: center;
      position: relative; z-index: 2;
    }
    .btn-download {
      display: inline-flex; align-items: center; justify-content: center; gap: 10px;
      padding: 18px 48px;
      min-width: 220px;
      background: var(--gold-gradient);
      color: #1A1A2E;
      border-radius: 100px;
      font-family: var(--font-display);
      font-weight: 700;
      font-size: 1.1rem;
      border: none; cursor: pointer;
      transition: all 0.3s;
      box-shadow: var(--glow-gold);
    }
    .btn-download:hover {
      transform: translateY(-4px);
      box-shadow: 0 20px 60px rgba(99,102,241,0.4);
    }
    .btn-download svg {
      width: 24px; height: 24px;
    }

    /* ============ FOOTER ============ */
    .footer {
      padding: 60px 0 40px;
      border-top: 1px solid var(--border-subtle);
      background: var(--bg-secondary);
    }
    .footer-top {
      display: grid;
      grid-template-columns: 1.2fr 1fr 1fr;
      gap: 40px;
      padding-bottom: 32px;
      border-bottom: 1px solid var(--border-subtle);
      margin-bottom: 24px;
    }
    .footer-brand {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .footer-logo {
      font-family: var(--font-display);
      font-weight: 800;
      font-size: 1.3rem;
      background: var(--accent-gradient);
      -webkit-background-clip: text; -webkit-text-fill-color: transparent;
      background-clip: text;
    }
    .footer-tagline {
      font-size: 0.85rem;
      color: var(--text-secondary);
      line-height: 1.6;
      max-width: 280px;
    }
    .footer-col-title {
      font-family: var(--font-display);
      font-weight: 700;
      font-size: 0.82rem;
      letter-spacing: 0.05em;
      text-transform: uppercase;
      color: var(--text-primary);
      margin-bottom: 16px;
    }
    .footer-links {
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-links a {
      font-size: 0.85rem;
      color: var(--text-secondary);
      transition: color 0.3s;
      text-decoration: none;
    }
    .footer-links a:hover {
      color: var(--green-600);
    }
    .footer-contact {
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-contact-item {
      font-size: 0.85rem;
      color: var(--text-secondary);
      line-height: 1.6;
    }
    .footer-contact-item strong {
      color: var(--text-primary);
      font-weight: 600;
      font-size: 0.78rem;
      display: block;
      margin-bottom: 2px;
    }
    .footer-contact-item a {
      color: var(--green-600);
      text-decoration: none;
    }
    .footer-contact-item a:hover {
      text-decoration: underline;
    }
    .footer-bottom {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .footer-copy {
      font-size: 0.78rem;
      color: var(--text-muted);
    }
    .footer-copy a {
      color: var(--text-muted);
      text-decoration: none;
      transition: color 0.3s;
    }
    .footer-copy a:hover {
      color: var(--green-600);
    }
    .footer-legal {
      display: flex;
      gap: 20px;
    }
    .footer-legal a {
      font-size: 0.78rem;
      color: var(--text-muted);
      text-decoration: none;
      transition: color 0.3s;
    }
    .footer-legal a:hover {
      color: var(--green-600);
    }

    /* ============ SOCIAL SECTION ============ */
    .social-section {
      background: var(--bg-secondary);
      border-top: 1px solid var(--border-subtle);
    }
    .social-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      margin-top: 60px;
    }
    .social-card {
      background: var(--bg-card);
      backdrop-filter: blur(12px);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-lg);
      padding: 40px 32px;
      transition: all var(--transition-base);
      position: relative;
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }
    .social-card:hover {
      background: var(--bg-card-hover);
      border-color: var(--border-hover);
      transform: translateY(-4px);
      box-shadow: var(--shadow-lg);
    }
    .social-card-icon {
      width: 56px; height: 56px;
      border-radius: 16px;
      display: flex; align-items: center; justify-content: center;
      margin-bottom: 20px;
      background: linear-gradient(135deg, rgba(59,130,246,0.1), rgba(34,197,94,0.1));
      border: 1px solid rgba(59,130,246,0.12);
    }
    .social-card-icon svg { width: 24px; height: 24px; stroke: var(--cyan-400); }
    .social-card-icon--purple {
      background: linear-gradient(135deg, rgba(168,85,247,0.1), rgba(99,102,241,0.1));
      border-color: rgba(168,85,247,0.1);
    }
    .social-card-icon--purple svg { stroke: #a855f7; }
    .social-card-icon--gold {
      background: linear-gradient(135deg, rgba(99,102,241,0.12), rgba(234,179,8,0.12));
      border-color: rgba(99,102,241,0.08);
    }
    .social-card-icon--gold svg { stroke: var(--gold-600); }
    .social-card-title {
      font-family: var(--font-display);
      font-weight: 700;
      font-size: 1.2rem;
      margin-bottom: 10px;
    }
    .social-card-desc {
      font-size: 0.88rem;
      color: var(--text-secondary);
      line-height: 1.7;
      margin-bottom: 18px;
    }
    .social-card-points {
      display: flex; flex-direction: column; gap: 8px;
    }
    .social-card-point {
      display: flex; align-items: center; gap: 8px;
      font-size: 0.84rem;
      color: var(--text-secondary);
    }
    .social-card-point::before {
      content: '';
      width: 6px; height: 6px; min-width: 6px;
      border-radius: 50%;
      background: var(--cyan-400);
    }
    .social-card:nth-child(4) .social-card-point::before,
    .social-card:nth-child(5) .social-card-point::before {
      background: var(--gold-600);
    }
    @media (max-width: 1024px) {
      .social-grid { grid-template-columns: repeat(2, 1fr); }
    }
    @media (max-width: 768px) {
      .social-grid { grid-template-columns: 1fr; }
    }

    /* ============ ANIMATIONS ============ */
    @keyframes fadeInUp {
      from { opacity: 0; transform: translateY(30px); }
      to { opacity: 1; transform: translateY(0); }
    }
    .reveal {
      opacity: 0;
      transform: translateY(30px);
      transition: all 0.7s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .reveal.visible {
      opacity: 1;
      transform: translateY(0);
    }
    .features-grid .reveal:nth-child(2) { transition-delay: 0.08s; }
    .features-grid .reveal:nth-child(3) { transition-delay: 0.16s; }
    .features-grid .reveal:nth-child(4) { transition-delay: 0.24s; }
    .features-grid .reveal:nth-child(5) { transition-delay: 0.32s; }
    .features-grid .reveal:nth-child(6) { transition-delay: 0.4s; }
    .social-grid .reveal:nth-child(2) { transition-delay: 0.08s; }
    .social-grid .reveal:nth-child(3) { transition-delay: 0.16s; }
    .social-grid .reveal:nth-child(4) { transition-delay: 0.24s; }
    .social-grid .reveal:nth-child(5) { transition-delay: 0.32s; }
    .security-grid .reveal:nth-child(2) { transition-delay: 0.08s; }
    .security-grid .reveal:nth-child(3) { transition-delay: 0.16s; }
    .how-grid .reveal:nth-child(2) { transition-delay: 0.1s; }
    .how-grid .reveal:nth-child(3) { transition-delay: 0.2s; }
    .how-grid .reveal:nth-child(4) { transition-delay: 0.3s; }

    /* ============ RESPONSIVE ============ */
    @media (max-width: 1024px) {
      .hero .container { grid-template-columns: 1fr; text-align: center; }
      .hero-desc { margin-left: auto; margin-right: auto; }
      .hero-actions { justify-content: center; flex-wrap: wrap; }
      .hero-visual { margin-top: 40px; }
      .features-grid { grid-template-columns: 1fr 1fr; }
      .features-grid > .feature-card:first-child { grid-row: auto; }
      .mini-game-grid { grid-template-columns: repeat(2, 1fr) !important; }
      .how-grid { grid-template-columns: repeat(2, 1fr); }
      .how-step:nth-child(2)::after { display: none; }
      .earn-grid { grid-template-columns: 1fr; }
      .earn-card--featured .earn-card-inner { grid-template-columns: 1fr; }
      .section { padding: 100px 0; }
      .footer-top { grid-template-columns: 1fr 1fr; }
      .footer-brand { grid-column: 1 / -1; }
      .section-title { font-size: 2rem; }
      .cta-title { font-size: 2.2rem; }
      .cta-buttons { flex-wrap: wrap; justify-content: center; }
    }
    /* ============ STICKY BOTTOM BAR (MOBILE) ============ */
    .sticky-bottom {
      display: none;
      position: fixed;
      bottom: 0; left: 0; right: 0;
      z-index: 999;
      background: rgba(255,255,255,0.95);
      backdrop-filter: blur(16px);
      border-top: 1px solid var(--border-subtle);
      padding: 12px 20px;
      transform: translateY(0);
    }
    .sticky-bottom-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      max-width: 480px;
      margin: 0 auto;
    }
    .sticky-bottom-text {
      font-family: var(--font-display);
      font-weight: 700;
      font-size: 0.9rem;
      color: var(--text-primary);
      line-height: 1.3;
    }
    .sticky-bottom-text small {
      display: block;
      font-weight: 400;
      font-size: 0.72rem;
      color: var(--text-secondary);
    }
    .sticky-bottom-btn {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 12px 28px;
      background: var(--gold-gradient);
      color: #1A1A2E;
      border-radius: 100px;
      font-family: var(--font-display);
      font-weight: 700;
      font-size: 0.88rem;
      border: none;
      cursor: pointer;
      white-space: nowrap;
      flex-shrink: 0;
      transition: all 0.3s;
      box-shadow: var(--glow-gold);
    }
    .sticky-bottom-btn:hover {
      transform: scale(1.03);
      box-shadow: 0 0 30px rgba(251,191,36,0.3);
    }
    @media (max-width: 768px) {
      .sticky-bottom { display: block; }
    }

    /* ============ HAMBURGER MENU ============ */
    .nav-hamburger {
      display: none;
      flex-direction: column;
      gap: 5px;
      background: none;
      border: none;
      cursor: pointer;
      padding: 8px;
      z-index: 1002;
    }
    .nav-hamburger span {
      display: block;
      width: 24px;
      height: 2.5px;
      background: var(--text-primary);
      border-radius: 2px;
      transition: all 0.3s ease;
    }
    .nav-hamburger.active span:nth-child(1) {
      transform: rotate(45deg) translate(5px, 5px);
    }
    .nav-hamburger.active span:nth-child(2) {
      opacity: 0;
    }
    .nav-hamburger.active span:nth-child(3) {
      transform: rotate(-45deg) translate(5px, -5px);
    }

    @media (max-width: 768px) {
      .nav-hamburger { display: flex; }
      .nav-links {
        display: none;
        position: fixed;
        top: 0; left: 0; right: 0; bottom: 0;
        width: 100vw;
        height: 100vh;
        background: linear-gradient(180deg, #FFFFFF 0%, #F0FDF4 100%);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 0;
        z-index: 1001;
        padding-bottom: 60px;
      }
      .nav-links.open {
        display: flex;
      }
      .nav-links::before {
        content: '星核';
        font-family: var(--font-display);
        font-weight: 900;
        font-size: 1.8rem;
        background: var(--accent-gradient);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
        margin-bottom: 40px;
      }
      .nav-links a {
        font-size: 1.15rem;
        font-weight: 600;
        color: var(--text-primary);
        padding: 16px 0;
        width: 200px;
        text-align: center;
        border-bottom: 1px solid var(--border-subtle);
        transition: color 0.3s;
      }
      .nav-links a:last-of-type:not(.nav-cta) {
        border-bottom: none;
      }
      .nav-links a:hover,
      .nav-links a:active {
        color: var(--green-600);
      }
      .nav-links .nav-cta {
        margin-top: 32px;
        padding: 16px 60px;
        font-size: 1.05rem !important;
        border-bottom: none !important;
        width: auto;
      }
      .container { padding: 0 20px; }
      .section { padding: 80px 0; }
      .section-title { font-size: 1.6rem; }
      .section-desc { font-size: 0.88rem; }
      h1 { font-size: 2rem; line-height: 1.3; }
      .hero { padding: 90px 0 50px; }
      .hero h1 { margin-bottom: 20px; }
      .hero-desc { font-size: 0.9rem; max-width: 100%; margin-bottom: 32px; line-height: 1.8; }
      .hero-desc span[style*="margin"] { margin: 0 10px !important; }
      .hero-badge { font-size: 0.75rem; padding: 6px 14px; }
      .btn-primary { padding: 14px 28px; font-size: 0.9rem; min-width: 170px; }
      .btn-secondary { padding: 14px 28px; font-size: 0.9rem; }
      .stats-bar { padding: 32px 0; }
      .stats-bar .container { grid-template-columns: repeat(2, 1fr); gap: 12px; }
      .stat-item { padding: 16px 12px; }
      .stat-number { font-size: 1.75rem; }
      .stat-label { font-size: 0.8rem; }
      .social-grid { gap: 16px; }
      .social-card { padding: 24px 20px; }
      .social-card-title { font-size: 1.05rem; }
      .features-grid { grid-template-columns: 1fr; gap: 16px; }
      .features-grid > .feature-card:first-child { grid-row: auto; }
      .feature-card { padding: 24px 20px; }
      .mini-game-grid { grid-template-columns: repeat(2, 1fr) !important; gap: 8px !important; }
      .testimonial-grid { grid-template-columns: 1fr !important; grid-template-rows: auto !important; }
      .testimonial-grid > .security-card:first-child { grid-row: auto !important; }
      .how-grid { grid-template-columns: 1fr; }
      .how-step::after { display: none; }
      .earn-card { padding: 24px 20px; }
      .earn-card--featured .earn-card-inner { padding: 24px 20px; grid-template-columns: 1fr; gap: 24px; }
      .earn-grid { grid-template-columns: 1fr; }
      .income-showcase { gap: 10px; }
      .vip-tier-list { gap: 14px; }
      .vip-tier-row { padding: 14px 16px; }
      .vip-tier-info { min-width: 120px; }
      .vip-tier-label { font-size: 0.88rem; }
      .vip-tier-value { font-size: 1rem; min-width: 50px; }
      .security-grid { grid-template-columns: 1fr; gap: 16px; }
      .security-card { padding: 20px 16px; }
      .social-grid { grid-template-columns: 1fr; }
      .earn-tier { padding: 12px 14px 12px 18px; }
      .income-item { padding: 12px 16px 12px 20px; }
      .cta-section { padding: 80px 0; }
      .cta-title { font-size: 1.8rem; }
      .cta-desc { font-size: 0.9rem; }
      .cta-buttons { flex-direction: column; align-items: center; }
      .btn-download { width: 100%; max-width: 280px; min-width: unset; }
      .footer { padding: 40px 0 100px; }
      .footer-top { grid-template-columns: 1fr; gap: 24px; text-align: center; padding-bottom: 24px; }
      .footer-brand { gap: 8px; }
      .footer-logo { font-size: 1.2rem; }
      .footer-tagline { margin: 0 auto; font-size: 0.8rem; }
      .footer-col-title { font-size: 0.78rem; margin-bottom: 12px; }
      .footer-links { flex-direction: row; flex-wrap: wrap; justify-content: center; gap: 12px 16px; }
      .footer-links a { font-size: 0.8rem; }
      .footer-contact { gap: 8px; }
      .footer-contact-item { font-size: 0.8rem; }
      .footer-contact-item strong { font-size: 0.75rem; }
      .footer-bottom { flex-direction: column; gap: 10px; text-align: center; margin-top: 20px; }
      .footer-copy { font-size: 0.72rem; }
      .footer-legal { justify-content: center; gap: 16px; }
      .footer-legal a { font-size: 0.72rem; }
      .phone-mockup { max-width: 260px; }
    }
    @media (max-width: 480px) {
      h1 { font-size: 1.65rem; line-height: 1.35; letter-spacing: -0.01em; }
      .section-title { font-size: 1.35rem; }
      .hero { padding: 80px 0 40px; }
      .hero h1 { margin-bottom: 16px; }
      .hero-desc { font-size: 0.875rem; margin-bottom: 28px; }
      .hero-desc span[style*="margin"] { margin: 0 8px !important; }
      .hero-badge { padding: 5px 12px; font-size: 0.7rem; }
      .hero-actions { flex-direction: column; align-items: center; gap: 12px; }
      .btn-primary { width: 100%; max-width: 280px; min-width: unset; }
      .btn-secondary { width: 100%; max-width: 280px; text-align: center; justify-content: center; }
      .stats-bar { padding: 24px 0; }
      .stats-bar .container { grid-template-columns: repeat(2, 1fr); gap: 10px; }
      .stat-item { padding: 14px 10px; border-radius: 8px; }
      .stat-number { font-size: 1.5rem; }
      .stat-label { font-size: 0.75rem; }
      .social-card-desc { font-size: 0.82rem; }
      .feature-text { font-size: 0.82rem; }
      .earn-desc { font-size: 0.82rem; }
      .mini-game-grid { grid-template-columns: 1fr !important; }
      .footer { padding: 32px 0 100px; }
      .footer-top { gap: 20px; padding-bottom: 20px; }
      .footer-brand { gap: 6px; }
      .footer-logo { font-size: 1.1rem; }
      .footer-tagline { font-size: 0.75rem; max-width: 260px; }
      .footer-col-title { font-size: 0.75rem; margin-bottom: 10px; }
      .footer-links { flex-direction: row; flex-wrap: wrap; justify-content: center; gap: 10px 14px; }
      .footer-links a { font-size: 0.75rem; }
      .footer-contact { gap: 6px; }
      .footer-contact-item { font-size: 0.75rem; }
      .footer-contact-item strong { font-size: 0.72rem; }
      .footer-bottom { gap: 8px; margin-top: 16px; }
      .footer-copy { font-size: 0.7rem; line-height: 1.5; }
      .footer-legal { gap: 12px; }
      .footer-legal a { font-size: 0.7rem; }
    }