/* ===== DESIGN SYSTEM — YÊU NỆM BRAND ===== */
:root {
    /* Brand Greens */
    --green-900: #0d2b18;
    --green-800: #143d23;
    --green-700: #1a5632;
    --green-600: #237542;
    --green-500: #2d9456;
    --green-400: #4db57a;
    --green-300: #7ecda0;
    --green-200: #b5e2c8;
    --green-100: #e0f3e8;
    --green-50: #f0faf4;

    /* Brand Golds */
    --gold-700: #8c6d1f;
    --gold-600: #a67c23;
    --gold-500: #c8a84e;
    --gold-400: #d4b86e;
    --gold-300: #e0c88e;
    --gold-200: #edd8ae;
    --gold-100: #f7eed5;
    --gold-50: #fdf9f0;

    /* Neutrals */
    --white: #ffffff;
    --gray-50: #f8faf9;
    --gray-100: #f0f3f1;
    --gray-200: #e2e7e4;
    --gray-300: #c9d1cc;
    --gray-400: #9da8a1;
    --gray-500: #6f7d73;
    --gray-600: #4a5650;
    --gray-700: #36403a;
    --gray-800: #252e28;
    --gray-900: #1a211d;

    /* Semantic */
    --bg-primary: var(--white);
    --bg-secondary: var(--green-50);
    --bg-card: var(--green-800);
    --bg-card-hover: var(--green-700);
    --bg-glass: rgba(255, 255, 255, 0.92);
    --text-primary: var(--gray-900);
    --text-secondary: var(--gray-600);
    --text-muted: var(--gray-400);
    --text-on-dark: #f0ede6;
    --text-on-dark-secondary: #b5e2c8;
    --accent: var(--green-700);
    --gold: var(--gold-500);
    --gold-light: var(--gold-400);
    --gold-dark: var(--gold-700);
    --red: #e74c3c;
    --blue: #3498db;
    --border: rgba(26, 86, 50, 0.12);
    --border-light: rgba(26, 86, 50, 0.25);
    --border-gold: rgba(200, 168, 78, 0.3);
    --shadow: 0 4px 30px rgba(0, 0, 0, 0.08);
    --shadow-gold: 0 4px 30px rgba(200, 168, 78, 0.2);
    --shadow-green: 0 4px 30px rgba(26, 86, 50, 0.12);
    --radius: 16px;
    --radius-sm: 10px;
    --radius-xs: 6px;
    --font-heading: 'Playfair Display', Georgia, serif;
    --font-body: 'Inter', -apple-system, sans-serif;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --container: 1200px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }

body {
    font-family: var(--font-body);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

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

a { color: var(--accent); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--green-500); }

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

/* ===== ANNOUNCEMENT BAR ===== */
.announcement-bar {
    background: linear-gradient(90deg, var(--gold-700), var(--gold-500), var(--gold-700));
    color: var(--white);
    padding: 10px 0;
    font-size: 0.85rem;
    font-weight: 600;
    position: relative;
    z-index: 100;
}
.announcement-bar .container {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
}
.announcement-text { display: flex; align-items: center; gap: 8px; }
.announcement-phone {
    background: var(--white);
    color: var(--gold-700);
    padding: 4px 14px;
    border-radius: 20px;
    font-weight: 700;
    font-size: 0.85rem;
    transition: var(--transition);
}
.announcement-phone:hover { background: var(--green-50); color: var(--green-800); }

.pulse-dot {
    width: 8px; height: 8px;
    background: var(--red);
    border-radius: 50%;
    display: inline-block;
    animation: pulse 2s infinite;
}
@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.5); }
}

/* ===== HEADER ===== */
.header {
    position: sticky;
    top: 0;
    z-index: 99;
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    transition: var(--transition);
}
.header.scrolled { box-shadow: 0 2px 30px rgba(0,0,0,0.1); }
.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 14px;
    padding-bottom: 14px;
}
.logo { display: flex; flex-direction: column; text-decoration: none; }
.logo-text {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--green-800);
    line-height: 1.2;
}
.logo-sub { font-size: 0.65rem; color: var(--text-secondary); letter-spacing: 2px; text-transform: uppercase; }
.nav { display: flex; gap: 8px; align-items: center; }
.nav-link {
    color: var(--text-secondary);
    font-size: 0.88rem;
    font-weight: 500;
    padding: 6px 14px;
    border-radius: var(--radius-xs);
    transition: var(--transition);
}
.nav-link:hover, .nav-link.active { color: var(--green-700); background: var(--green-50); }
.header-cta {
    display: flex; align-items: center; gap: 6px;
    background: linear-gradient(135deg, var(--green-800), var(--green-600));
    color: var(--white) !important;
    padding: 8px 18px;
    border-radius: 30px;
    font-weight: 700;
    font-size: 0.88rem;
    transition: var(--transition);
}
.header-cta:hover { transform: translateY(-1px); box-shadow: var(--shadow-green); }
.cta-icon { font-size: 1rem; }

/* Mobile Toggle */
.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}
.mobile-toggle span {
    width: 24px; height: 2px;
    background: var(--green-800);
    border-radius: 2px;
    transition: var(--transition);
}

/* ===== HERO ===== */
.hero {
    position: relative;
    padding: 80px 0 60px;
    min-height: 85vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: linear-gradient(135deg, var(--green-50), var(--white), var(--gold-50));
}
.hero-bg-pattern {
    position: absolute; inset: 0;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(26,86,50,0.06) 0%, transparent 60%),
        radial-gradient(ellipse at 80% 20%, rgba(200,168,78,0.06) 0%, transparent 50%);
}
.hero .container {
    position: relative;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--green-800);
    border: 1px solid var(--green-700);
    padding: 8px 20px;
    border-radius: 30px;
    font-size: 0.82rem;
    color: var(--gold-400);
    margin-bottom: 24px;
    animation: fadeInUp 0.8s ease;
}
.badge-icon { font-size: 1rem; }
.hero-title {
    font-family: var(--font-heading);
    font-size: clamp(2.2rem, 4vw, 3.2rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
    color: var(--green-900);
    animation: fadeInUp 0.8s ease 0.1s both;
}
.text-gold { color: var(--gold-600); }
.text-green { color: var(--green-700); }
.hero-subtitle {
    font-size: 1.05rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
    max-width: 500px;
    animation: fadeInUp 0.8s ease 0.2s both;
}
.hero-actions {
    display: flex; gap: 16px; flex-wrap: wrap;
    margin-bottom: 40px;
    animation: fadeInUp 0.8s ease 0.3s both;
}

/* Buttons */
.btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 14px 28px;
    border-radius: 30px;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    border: none;
    transition: var(--transition);
    text-decoration: none;
}
.btn-primary {
    background: linear-gradient(135deg, var(--green-800), var(--green-600));
    color: var(--white);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: var(--shadow-green); color: var(--white); }
.btn-outline {
    background: transparent;
    border: 1.5px solid var(--border-light);
    color: var(--green-700);
}
.btn-outline:hover { background: var(--green-50); border-color: var(--green-500); color: var(--green-600); }
.btn-gold {
    background: linear-gradient(135deg, var(--gold-700), var(--gold-500));
    color: var(--white);
}
.btn-gold:hover { transform: translateY(-2px); box-shadow: var(--shadow-gold); color: var(--white); }
.btn-zalo {
    background: linear-gradient(135deg, #0068ff, #0095ff);
    color: #fff;
}
.btn-zalo:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(0,104,255,0.3); color: #fff; }

/* Hero Stats */
.hero-stats {
    display: flex; align-items: center; gap: 24px;
    animation: fadeInUp 0.8s ease 0.4s both;
}
.stat-item { text-align: center; }
.stat-number {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--gold-600);
    line-height: 1;
}
.stat-suffix { font-size: 1.2rem; color: var(--gold-600); font-weight: 700; }
.stat-label { display: block; font-size: 0.78rem; color: var(--text-secondary); margin-top: 4px; }
.stat-divider { width: 1px; height: 40px; background: var(--gray-200); }

/* Hero Visual */
.hero-visual { position: relative; }
.hero-image-wrapper { position: relative; }
.hero-image {
    width: 100%;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}
.hero-float-card {
    position: absolute;
    background: var(--green-800);
    border: 1px solid var(--green-700);
    padding: 12px 18px;
    border-radius: var(--radius-sm);
    display: flex; align-items: center; gap: 10px;
    animation: float 4s ease-in-out infinite;
    box-shadow: var(--shadow);
}
.hero-float-card.card-shipping { bottom: 20px; left: -20px; }
.hero-float-card.card-warranty { top: 20px; right: -20px; animation-delay: 1s; }
.float-icon { font-size: 1.5rem; }
.hero-float-card strong { font-size: 0.85rem; color: var(--gold-400); display: block; }
.hero-float-card small { font-size: 0.72rem; color: var(--text-on-dark-secondary); }

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

.hero-scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex; flex-direction: column; align-items: center; gap: 8px;
    color: var(--text-muted);
    font-size: 0.75rem;
}
.scroll-arrow {
    width: 20px; height: 30px;
    border: 2px solid var(--gray-300);
    border-radius: 10px;
    position: relative;
}
.scroll-arrow::after {
    content: '';
    position: absolute;
    width: 3px; height: 8px;
    background: var(--green-600);
    border-radius: 2px;
    top: 5px; left: 50%;
    transform: translateX(-50%);
    animation: scrollBounce 2s infinite;
}
@keyframes scrollBounce {
    0%, 100% { top: 5px; opacity: 1; }
    50% { top: 14px; opacity: 0.3; }
}

/* ===== TRUST SECTION (Dark Green Cards) ===== */
.trust-section {
    padding: 60px 0;
    background: var(--green-50);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}
.trust-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
}
.trust-item {
    text-align: center;
    padding: 32px 20px;
    background: var(--green-800);
    border-radius: var(--radius);
    border: 1px solid var(--green-700);
    transition: var(--transition);
    color: var(--text-on-dark);
}
.trust-item:hover {
    transform: translateY(-4px);
    border-color: var(--gold-500);
    box-shadow: var(--shadow-gold);
}
.trust-icon { font-size: 2.2rem; margin-bottom: 16px; }
.trust-item h3 {
    font-family: var(--font-heading);
    font-size: 1.05rem;
    color: var(--gold-400);
    margin-bottom: 8px;
}
.trust-item p { font-size: 0.85rem; color: var(--text-on-dark-secondary); }

/* ===== SECTION COMMON ===== */
.section-tag {
    display: inline-block;
    font-size: 0.78rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--gold-600);
    margin-bottom: 12px;
}
.section-title {
    font-family: var(--font-heading);
    font-size: clamp(1.8rem, 3vw, 2.4rem);
    font-weight: 700;
    margin-bottom: 16px;
    line-height: 1.3;
    color: var(--green-900);
}
.section-desc {
    font-size: 1rem;
    color: var(--text-secondary);
    max-width: 600px;
}
.content-section {
    padding: 80px 0;
    background: var(--white);
}
.content-section.alt-bg {
    background: var(--green-50);
}
.section-header {
    text-align: center;
    margin-bottom: 50px;
}
.section-header .section-desc {
    margin: 0 auto;
}

/* ===== DISTRICT GRID (Dark Green Cards) ===== */
.district-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 16px;
    margin-top: 32px;
}
.district-card {
    background: var(--green-800);
    border: 1px solid var(--green-700);
    border-radius: var(--radius-sm);
    padding: 20px 16px;
    text-align: center;
    transition: var(--transition);
    cursor: default;
}
.district-card:hover {
    transform: translateY(-4px);
    border-color: var(--gold-500);
    box-shadow: var(--shadow-gold);
}
.district-card.premium {
    border-color: var(--gold-500);
    background: linear-gradient(135deg, var(--green-800), var(--green-900));
    grid-column: span 2;
    position: relative;
    overflow: hidden;
}
.district-card.premium::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(200,168,78,0.08), transparent);
}
.district-name {
    font-family: var(--font-heading);
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-on-dark);
    margin-bottom: 8px;
    position: relative;
}
.district-badge {
    display: inline-block;
    font-size: 0.72rem;
    font-weight: 600;
    padding: 3px 10px;
    border-radius: 20px;
    background: rgba(77, 181, 122, 0.2);
    color: var(--green-300);
    position: relative;
}
.district-badge.express {
    background: rgba(200,168,78,0.2);
    color: var(--gold-400);
}
.district-detail {
    font-size: 0.8rem;
    color: var(--text-on-dark-secondary);
    margin-top: 6px;
    position: relative;
}

/* ===== GUIDE SECTION ===== */
.guide-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
    margin-top: 32px;
}
.guide-card {
    background: linear-gradient(135deg, var(--gold-50), var(--gold-100));
    border: 1px solid var(--border-gold);
    border-radius: var(--radius);
    padding: 28px;
    transition: var(--transition);
}
.guide-card:hover {
    border-color: var(--gold-500);
    box-shadow: var(--shadow-gold);
    transform: translateY(-2px);
}
.guide-card-icon { font-size: 2rem; margin-bottom: 12px; }
.guide-card-title {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    color: var(--gold-700);
    margin-bottom: 8px;
}
.guide-card-product {
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}
.guide-card-density {
    font-size: 0.82rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
}
.guide-card-note {
    font-size: 0.82rem;
    color: var(--text-muted);
    font-style: italic;
}

/* ===== PRICE SECTION ===== */
.price-section {
    padding: 80px 0;
    background: var(--white);
}

.product-intro {
    display: flex;
    align-items: center;
    gap: 40px;
    margin-bottom: 40px;
}
.product-intro-text { flex: 1; }
.product-intro-image {
    flex: 0 0 280px;
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--gray-200);
}
.product-intro-image img { width: 100%; object-fit: cover; }

/* Tabs */
.tabs-wrapper { margin-bottom: 32px; }
.tabs-nav {
    display: flex;
    gap: 8px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}
.tab-btn {
    padding: 8px 20px;
    border: 1px solid var(--gray-200);
    border-radius: 30px;
    background: transparent;
    color: var(--text-secondary);
    font-size: 0.88rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    font-family: var(--font-body);
}
.tab-btn:hover { border-color: var(--green-500); color: var(--green-700); }
.tab-btn.active {
    background: linear-gradient(135deg, var(--green-800), var(--green-600));
    color: var(--white);
    border-color: var(--green-700);
    font-weight: 600;
}
.tab-content { display: none; animation: fadeIn 0.4s ease; }
.tab-content.active { display: block; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

/* Price Layout: Table + Sidebar */
.price-layout {
    display: grid;
    grid-template-columns: 1fr 280px;
    gap: 24px;
    align-items: start;
}

/* Price Table */
.price-table-wrapper {
    overflow-x: auto;
    border-radius: var(--radius);
    border: 1px solid var(--gray-200);
    background: var(--white);
}
.price-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}
.price-table th {
    background: var(--green-800);
    padding: 14px 20px;
    text-align: left;
    font-weight: 600;
    color: var(--text-on-dark-secondary);
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--green-700);
}
.price-table th.highlight-col {
    color: var(--gold-400);
    background: var(--green-900);
}
.price-table td {
    padding: 12px 20px;
    border-bottom: 1px solid var(--gray-100);
    color: var(--text-primary);
}
.price-table tr:hover td { background: var(--green-50); }
.price-table .price-old {
    color: var(--text-muted);
    text-decoration: line-through;
    font-size: 0.85rem;
}
.price-table .price-new {
    color: var(--green-700);
    font-weight: 700;
    font-size: 0.95rem;
}

/* Price Sidebar (Desktop Only) */
.price-sidebar {
    background: var(--gold-50);
    border: 1px solid var(--border-gold);
    border-radius: var(--radius);
    padding: 24px 20px;
    text-align: center;
    position: sticky;
    top: 100px;
}
.price-sidebar-title {
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--green-800);
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-gold);
}
.price-sidebar-title small {
    display: block;
    font-size: 0.78rem;
    color: var(--gold-600);
    font-family: var(--font-body);
    font-weight: 400;
    font-style: italic;
}
.price-sidebar-gift { font-size: 2.5rem; margin-bottom: 12px; }
.price-sidebar-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.6;
}
.price-sidebar-desc strong { color: var(--green-700); }
.price-sidebar .btn {
    width: 100%;
    justify-content: center;
    margin-bottom: 10px;
    padding: 12px 20px;
    font-size: 0.88rem;
}
.price-sidebar .btn-fb {
    background: var(--white);
    border: 1px solid var(--gray-200);
    color: var(--text-primary);
}
.price-sidebar .btn-fb:hover { border-color: var(--green-500); color: var(--green-700); background: var(--green-50); }

/* Section CTA */
.section-cta {
    text-align: center;
    margin-top: 40px;
    padding: 32px;
    background: var(--green-50);
    border-radius: var(--radius);
    border: 1px solid var(--border);
}
.cta-promo-text {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
}
.cta-promo-text strong { color: var(--green-700); }
.cta-promo-text a { color: var(--green-700); font-weight: 600; }

/* Price Detail Link */
.price-detail-link {
    margin-top: 20px;
    padding: 16px 24px;
    background: var(--gold-50);
    border: 1px solid var(--border-gold);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    color: var(--text-secondary);
    text-align: center;
    line-height: 1.6;
}
.price-detail-link a {
    color: var(--green-700);
    font-weight: 600;
    text-decoration: underline;
    text-underline-offset: 2px;
}
.price-detail-link a:hover {
    color: var(--gold-600);
}

/* ===== VERIFY SECTION ===== */
.verify-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
    margin-top: 32px;
}
.verify-card {
    background: var(--green-800);
    border: 1px solid var(--green-700);
    border-radius: var(--radius);
    padding: 28px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    color: var(--text-on-dark);
}
.verify-card:hover {
    border-color: var(--gold-500);
    transform: translateY(-2px);
    box-shadow: var(--shadow-gold);
}
.verify-step {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px; height: 36px;
    background: linear-gradient(135deg, var(--gold-700), var(--gold-500));
    color: var(--white);
    font-weight: 700;
    font-size: 0.9rem;
    border-radius: 50%;
    margin-bottom: 14px;
}
.verify-icon { font-size: 1.8rem; margin-bottom: 12px; }
.verify-title {
    font-family: var(--font-heading);
    font-size: 1rem;
    color: var(--gold-400);
    margin-bottom: 8px;
}
.verify-desc {
    font-size: 0.85rem;
    color: var(--text-on-dark-secondary);
}

/* ===== REVIEWS SECTION ===== */
.reviews-section {
    padding: 80px 0;
    background: var(--green-50);
    overflow: hidden;
}
.reviews-header {
    text-align: center;
    margin-bottom: 16px;
}
.reviews-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: var(--gold-50);
    border: 1px solid var(--border-gold);
    padding: 10px 24px;
    border-radius: 30px;
    font-size: 0.9rem;
    color: var(--gold-700);
    margin: 0 auto 40px;
}
.reviews-track-wrapper {
    position: relative;
    overflow: hidden;
    mask-image: linear-gradient(to right, transparent, black 5%, black 95%, transparent);
    -webkit-mask-image: linear-gradient(to right, transparent, black 5%, black 95%, transparent);
}
.reviews-track {
    display: flex;
    gap: 24px;
    animation: scrollReviews 60s linear infinite;
    width: max-content;
}
.reviews-track:hover {
    animation-play-state: paused;
}
@keyframes scrollReviews {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}
.review-card {
    flex: 0 0 380px;
    background: var(--green-800);
    border: 1px solid var(--green-700);
    border-radius: var(--radius);
    padding: 28px;
    transition: var(--transition);
}
.review-card:hover {
    border-color: var(--gold-500);
    box-shadow: var(--shadow-gold);
}
.review-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 14px;
}
.review-avatar {
    width: 44px; height: 44px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--gold-700), var(--gold-500));
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: var(--white);
    font-size: 1.1rem;
    flex-shrink: 0;
}
.review-info { flex: 1; }
.review-name {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text-on-dark);
}
.review-meta {
    font-size: 0.75rem;
    color: var(--text-on-dark-secondary);
    opacity: 0.7;
}
.review-local-guide {
    display: inline-block;
    font-size: 0.68rem;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 10px;
    background: rgba(52,152,219,0.2);
    color: #74b9ff;
    margin-left: 6px;
}
.review-stars {
    color: #fbbf24;
    font-size: 0.9rem;
    margin-bottom: 10px;
    letter-spacing: 2px;
}
.review-text {
    font-size: 0.88rem;
    color: var(--text-on-dark-secondary);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 4;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ===== STEPS SECTION ===== */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 16px;
    margin-top: 40px;
    position: relative;
}
.steps-grid::before {
    content: '';
    position: absolute;
    top: 36px;
    left: 10%;
    right: 10%;
    height: 2px;
    background: linear-gradient(90deg, var(--gray-200), var(--gold-500), var(--gray-200));
    z-index: 0;
}
.step-card {
    text-align: center;
    position: relative;
    z-index: 1;
}
.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 56px; height: 56px;
    background: var(--green-800);
    border: 2px solid var(--gold-500);
    border-radius: 50%;
    font-size: 1.4rem;
    margin-bottom: 16px;
    position: relative;
}
.step-title {
    font-family: var(--font-heading);
    font-size: 0.95rem;
    color: var(--green-800);
    margin-bottom: 6px;
}
.step-desc {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* ===== FAQ SECTION ===== */
.faq-section {
    padding: 80px 0;
    background: var(--green-50);
}
.faq-list {
    max-width: 800px;
    margin: 32px auto 0;
}
.faq-item {
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-sm);
    margin-bottom: 12px;
    overflow: hidden;
    transition: var(--transition);
    background: var(--white);
}
.faq-item.active {
    border-color: var(--green-500);
    box-shadow: var(--shadow-green);
}
.faq-question {
    width: 100%;
    padding: 18px 24px;
    background: var(--white);
    border: none;
    color: var(--text-primary);
    font-size: 0.95rem;
    font-weight: 600;
    text-align: left;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: var(--font-body);
    transition: var(--transition);
}
.faq-question:hover { color: var(--green-700); }
.faq-icon {
    font-size: 1.2rem;
    transition: var(--transition);
    color: var(--green-700);
    flex-shrink: 0;
}
.faq-item.active .faq-icon { transform: rotate(45deg); }
.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease;
}
.faq-answer-inner {
    padding: 0 24px 18px;
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ===== CONTACT / FOOTER ===== */
.contact-section {
    padding: 80px 0;
    background: var(--white);
    border-top: 1px solid var(--border);
}
.contact-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 40px;
}
.contact-card {
    background: var(--green-800);
    border: 1px solid var(--green-700);
    border-radius: var(--radius);
    padding: 28px 20px;
    text-align: center;
    transition: var(--transition);
    color: var(--text-on-dark);
}
.contact-card:hover {
    border-color: var(--gold-500);
    transform: translateY(-4px);
    box-shadow: var(--shadow-gold);
}
.contact-icon { font-size: 2.2rem; margin-bottom: 14px; }
.contact-title {
    font-family: var(--font-heading);
    font-size: 1rem;
    color: var(--gold-400);
    margin-bottom: 6px;
}
.contact-value {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-on-dark);
}
.contact-value a { color: var(--text-on-dark); }
.contact-value a:hover { color: var(--gold-400); }
.contact-note {
    font-size: 0.78rem;
    color: var(--text-on-dark-secondary);
    margin-top: 6px;
    opacity: 0.7;
}

/* Footer */
.footer {
    padding: 40px 0;
    background: var(--green-900);
    border-top: 1px solid var(--green-800);
    text-align: center;
    color: var(--text-on-dark);
}
.footer-logo {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    color: var(--gold-400);
    margin-bottom: 8px;
}
.footer-text {
    font-size: 0.82rem;
    color: var(--text-on-dark-secondary);
    opacity: 0.6;
}
.footer-links {
    display: flex;
    justify-content: center;
    gap: 24px;
    margin-top: 16px;
    flex-wrap: wrap;
}
.footer-links a {
    font-size: 0.82rem;
    color: var(--text-on-dark-secondary);
}
.footer-links a:hover { color: var(--gold-400); }

/* ===== FLOATING CTA ===== */
.floating-cta {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 90;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.float-btn {
    width: 56px; height: 56px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
    transition: var(--transition);
    text-decoration: none;
}
.float-btn:hover { transform: scale(1.1); }
.float-btn.phone {
    background: linear-gradient(135deg, var(--green-800), var(--green-600));
    color: var(--white);
    animation: floatPulse 2s infinite;
}
.float-btn.zalo {
    background: linear-gradient(135deg, #0068ff, #0095ff);
    color: #fff;
}
@keyframes floatPulse {
    0%, 100% { box-shadow: 0 4px 20px rgba(26,86,50,0.3); }
    50% { box-shadow: 0 4px 30px rgba(26,86,50,0.5); }
}

/* ===== SCROLL ANIMATIONS ===== */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}
.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .hero .container { grid-template-columns: 1fr; gap: 40px; }
    .hero-visual { order: -1; max-width: 500px; margin: 0 auto; }
    .hero-content { text-align: center; }
    .hero-subtitle { margin: 0 auto 32px; }
    .hero-actions { justify-content: center; }
    .hero-stats { justify-content: center; }
    .steps-grid { grid-template-columns: repeat(3, 1fr); }
    .steps-grid::before { display: none; }
    .product-intro { flex-direction: column; }
    .product-intro-image { flex: none; max-width: 400px; }
    .price-layout { grid-template-columns: 1fr; }
    .price-sidebar { display: none; }
}

@media (max-width: 768px) {
    .announcement-bar .container { flex-direction: column; gap: 8px; text-align: center; }
    .nav { display: none; position: absolute; top: 100%; left: 0; right: 0; background: var(--bg-glass); backdrop-filter: blur(20px); flex-direction: column; padding: 20px; border-bottom: 1px solid var(--border); }
    .nav.active { display: flex; }
    .mobile-toggle { display: flex; }
    .header-cta { display: none; }
    .hero { min-height: auto; padding: 40px 0; }
    .hero-title { font-size: 1.8rem; }
    .trust-grid { grid-template-columns: repeat(2, 1fr); }
    .district-grid { grid-template-columns: repeat(2, 1fr); }
    .district-card.premium { grid-column: span 2; }
    .guide-grid { grid-template-columns: 1fr; }
    .steps-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
    .review-card { flex: 0 0 300px; }
    .contact-grid { grid-template-columns: repeat(3, 1fr); }
    .section-title { font-size: 1.6rem; }
    .content-section { padding: 50px 0; }
    .price-section { padding: 50px 0; }
    .floating-cta { bottom: 16px; right: 16px; }
    .float-btn { width: 48px; height: 48px; font-size: 1.3rem; }
}

@media (max-width: 480px) {
    .trust-grid { grid-template-columns: 1fr; }
    .district-grid { grid-template-columns: 1fr; }
    .district-card.premium { grid-column: span 1; }
    .steps-grid { grid-template-columns: 1fr; }
    .hero-stats { flex-direction: column; gap: 16px; }
    .stat-divider { width: 40px; height: 1px; }
    .hero-actions { flex-direction: column; align-items: center; }
    .btn { width: 100%; justify-content: center; }
    .contact-grid { grid-template-columns: repeat(2, 1fr); }
}