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

:root {
  --blue: #3A8DFF;
  --dark: #111;
  --radius: 16px;
}

body { font-family: 'Inter', sans-serif; color: #222; background: #fff; line-height: 1.6; }

/* NAV */
header { position: sticky; top: 0; background: rgba(255,255,255,0.95); backdrop-filter: blur(10px); border-bottom: 1px solid #eee; z-index: 100; }
nav { max-width: 1200px; margin: 0 auto; padding: 14px 24px; display: flex; align-items: center; justify-content: space-between; }
.logo { font-size: 22px; font-weight: 800; color: var(--dark); text-decoration: none; letter-spacing: -0.5px; }
.logo span { color: var(--blue); }
.nav-links { display: flex; gap: 6px; }
.nav-links a { text-decoration: none; font-weight: 600; font-size: 13px; color: #555; padding: 6px 14px; border-radius: 8px; transition: all .2s; }
.nav-links a:hover, .nav-links a.active { background: var(--dark); color: #fff; }

/* HERO */
.hero {
  position: relative;
  min-height: 520px;
  background: url('/images/2025/07/Picun-2.png') center/cover no-repeat;
  display: flex; align-items: flex-end; padding: 60px 24px;
}
.hero::before { content:''; position:absolute; inset:0; background: linear-gradient(to right, rgba(0,0,0,0.7) 0%, rgba(0,0,0,0.3) 60%, transparent 100%); }
.hero-content { position: relative; max-width: 600px; }
.hero h1 { font-size: clamp(32px, 5vw, 58px); font-weight: 800; color: #fff; line-height: 1.15; margin-bottom: 14px; }
.hero p { font-size: 18px; color: rgba(255,255,255,0.85); max-width: 480px; }

/* FEATURE CARDS */
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; }
.feature-card { padding: 44px 32px; color: #fff; text-align: center; }
.feature-card:nth-child(1) { background: linear-gradient(135deg, #5b9cff, #84e8f8); }
.feature-card:nth-child(2) { background: linear-gradient(135deg, #ff6b9d, #ff9f43); }
.feature-card:nth-child(3) { background: linear-gradient(135deg, #7c5cfc, #d83ef0); }
.feature-card img { width: 52px; height: 52px; margin-bottom: 16px; filter: brightness(0) invert(1); }
.feature-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 12px; }
.feature-card p { font-size: 14px; opacity: 0.92; line-height: 1.65; }

/* BROWSE HEADING */
.browse-head { text-align: center; padding: 64px 24px 40px; }
.browse-head h2 { font-size: clamp(24px, 3.5vw, 38px); font-weight: 800; color: var(--dark); margin-bottom: 10px; }
.browse-head p { font-size: 17px; color: #666; }

/* PRODUCT CARDS */
.products { max-width: 1100px; margin: 0 auto; padding: 0 24px 60px; display: flex; flex-direction: column; gap: 60px; }
.product { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
.product:nth-child(even) .product-info { order: -1; }

/* CAROUSEL */
.carousel { position: relative; overflow: hidden; border-radius: var(--radius); background: #f5f6fa; }
.carousel-track { display: flex; transition: transform .4s ease; }
.carousel-track img { width: 100%; flex-shrink: 0; aspect-ratio: 1; object-fit: contain; padding: 20px; }
.carousel-btn { position: absolute; top: 50%; transform: translateY(-50%); background: rgba(255,255,255,0.9); border: none; border-radius: 50%; width: 38px; height: 38px; cursor: pointer; font-size: 18px; box-shadow: 0 2px 8px rgba(0,0,0,0.15); transition: background .2s; display: flex; align-items: center; justify-content: center; }
.carousel-btn:hover { background: #fff; }
.carousel-btn.prev { left: 10px; }
.carousel-btn.next { right: 10px; }
.carousel-dots { display: flex; justify-content: center; gap: 6px; padding: 10px; }
.carousel-dots span { width: 7px; height: 7px; border-radius: 50%; background: #ccc; cursor: pointer; transition: background .2s; }
.carousel-dots span.active { background: var(--blue); }

/* PRODUCT INFO */
.product-info h3 { font-size: 26px; font-weight: 800; color: var(--dark); margin-bottom: 14px; }
.product-info ul { list-style: none; margin-bottom: 24px; }
.product-info ul li { padding: 5px 0; font-size: 15px; color: #444; padding-left: 20px; position: relative; }
.product-info ul li::before { content: '✓'; position: absolute; left: 0; color: var(--blue); font-weight: 700; }
.btn-buy { display: inline-block; background: linear-gradient(135deg, #FF9900, #FFAD33); color: #111; font-weight: 700; font-size: 16px; padding: 14px 36px; border-radius: 50px; text-decoration: none; transition: transform .2s, box-shadow .2s; box-shadow: 0 4px 16px rgba(255,153,0,.35); }
.btn-buy:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(255,153,0,.5); }

/* VIDEO SECTION */
.video-section { background: #000; padding: 70px 24px; text-align: center; }
.video-section h2 { font-size: clamp(22px, 3vw, 36px); font-weight: 800; color: #fff; margin-bottom: 10px; }
.video-section p { color: rgba(255,255,255,0.7); margin-bottom: 30px; font-size: 16px; }
.video-wrap { max-width: 800px; margin: 0 auto 30px; border-radius: var(--radius); overflow: hidden; aspect-ratio: 16/9; }
.video-wrap iframe { width: 100%; height: 100%; border: none; }
.video-section .btn-buy { display: inline-block; }

/* COMFORT SECTION */
.comfort-section { max-width: 900px; margin: 0 auto; padding: 70px 24px; text-align: center; }
.comfort-section h2 { font-size: clamp(22px, 3vw, 36px); font-weight: 800; color: var(--dark); margin-bottom: 14px; }
.comfort-section p { font-size: 17px; color: #666; }

/* FAQ */
.faq-section { max-width: 860px; margin: 0 auto; padding: 20px 24px 70px; }
.faq-section h2 { font-size: clamp(22px, 3vw, 34px); font-weight: 800; color: var(--dark); margin-bottom: 30px; text-align: center; }
.faq-item { border: 1px solid #e5e7eb; border-radius: 14px; margin-bottom: 12px; overflow: hidden; }
.faq-q { width: 100%; text-align: left; padding: 18px 22px; font-size: 16px; font-weight: 600; color: #fff; border: none; cursor: pointer; display: flex; justify-content: space-between; align-items: center; }
.faq-item:nth-child(odd) .faq-q { background: linear-gradient(135deg, #63a4ff, #83eaf1); }
.faq-item:nth-child(even) .faq-q { background: linear-gradient(135deg, #ff758c, #ff7eb3); }
.faq-item:nth-child(3n) .faq-q { background: linear-gradient(135deg, #7f00ff, #e100ff); }
.faq-item:nth-child(4n) .faq-q { background: linear-gradient(135deg, #00c9ff, #92fe9d); }
.faq-q::after { content: '+'; font-size: 22px; font-weight: 300; }
.faq-item.open .faq-q::after { content: '−'; }
.faq-a { display: none; padding: 18px 22px; font-size: 15px; color: #444; background: #fafbfc; border-top: 1px solid #e5e7eb; line-height: 1.7; }
.faq-item.open .faq-a { display: block; }

/* APP SECTION */
.app-section { background: linear-gradient(135deg, #1a1a2e, #0f3460); padding: 70px 24px; display: flex; align-items: center; gap: 50px; max-width: 100%; }
.app-section-inner { max-width: 1100px; margin: 0 auto; display: grid; grid-template-columns: auto 1fr; gap: 50px; align-items: center; }
.app-section img { width: 200px; border-radius: 20px; }
.app-section h2 { font-size: clamp(24px, 3vw, 36px); font-weight: 800; color: #fff; margin-bottom: 20px; }
.app-checklist { list-style: none; }
.app-checklist li { color: rgba(255,255,255,0.9); font-size: 16px; padding: 6px 0; padding-left: 28px; position: relative; }
.app-checklist li::before { content: '✅'; position: absolute; left: 0; }

/* TESTIMONIALS */
.testimonials-section { padding: 70px 24px; background: var(--dark); }
.testimonials-section h2 { text-align: center; font-size: clamp(22px, 3vw, 34px); font-weight: 800; color: #fff; margin-bottom: 40px; }
.testimonial-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 18px; max-width: 1100px; margin: 0 auto; }
.testimonial-card { border-radius: 20px; padding: 28px; color: #fff; }
.testimonial-card:nth-child(1) { background: linear-gradient(135deg, #667eea, #764ba2); }
.testimonial-card:nth-child(2) { background: linear-gradient(135deg, #f093fb, #f5576c); }
.testimonial-card:nth-child(3) { background: linear-gradient(135deg, #4facfe, #00f2fe); }
.testimonial-card:nth-child(4) { background: linear-gradient(135deg, #43e97b, #38f9d7); }
.testimonial-card:nth-child(5) { background: linear-gradient(135deg, #fa709a, #fee140); }
.testimonial-card:nth-child(6) { background: linear-gradient(135deg, #a18cd1, #fbc2eb); }
.testimonial-card:nth-child(7) { background: linear-gradient(135deg, #fccb90, #d57eeb); }
.testimonial-card:nth-child(8) { background: linear-gradient(135deg, #a1c4fd, #c2e9fb); }
.testimonial-card:nth-child(9) { background: linear-gradient(135deg, #fd7043, #ffcc02); }
.quote-text { font-size: 15px; font-weight: 500; line-height: 1.6; margin-bottom: 14px; }
.quote-author { font-size: 13px; opacity: 0.85; font-style: italic; }

/* FOOTER */
footer { background: #0a0a0a; color: #888; text-align: center; padding: 32px 24px; }
footer p { font-size: 14px; margin-bottom: 6px; }
.disclaimer { font-size: 12px; color: #555; }

/* RESPONSIVE */
@media (max-width: 768px) {
  .features { grid-template-columns: 1fr; }
  .product { grid-template-columns: 1fr; }
  .product:nth-child(even) .product-info { order: 0; }
  .app-section-inner { grid-template-columns: 1fr; text-align: center; }
  .app-section img { margin: 0 auto; }
  nav { flex-direction: column; gap: 10px; }
  .nav-links { flex-wrap: wrap; justify-content: center; }
  .hero { min-height: 380px; padding: 40px 20px; }
}