:root {
    --primary: #3b82f6;
    --primary-light: #60a5fa;
    --primary-dark: #2563eb;
    --secondary: #8b5cf6;
    --accent: #06b6d4;
    --success: #10b981;
    --bg-light: #f0f9ff;
    --bg-white: #ffffff;
    --bg-gradient: linear-gradient(135deg, #e0f2fe 0%, #f0f9ff 50%, #faf5ff 100%);
    --text-dark: #1e293b;
    --text-body: #475569;
    --text-muted: #94a3b8;
    --border: #e2e8f0;
    --shadow-sm: 0 2px 8px rgba(59, 130, 246, 0.08);
    --shadow-md: 0 8px 24px rgba(59, 130, 246, 0.12);
    --shadow-lg: 0 16px 48px rgba(59, 130, 246, 0.15);
    --shadow-glow: 0 8px 32px rgba(59, 130, 246, 0.25);
    --radius: 20px;
    --radius-lg: 32px;
    --radius-full: 9999px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", Roboto, sans-serif;
    font-size: 16px;
    line-height: 1.7;
    color: var(--text-body);
    background: var(--bg-gradient);
    min-height: 100vh;
}

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

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

a {
    color: var(--primary);
    text-decoration: none;
    transition: all 0.3s ease;
}

a:hover {
    color: var(--primary-dark);
}

h1, h2, h3, h4 {
    color: var(--text-dark);
    font-weight: 700;
    line-height: 1.3;
}

h1 { font-size: clamp(2rem, 5vw, 3rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); margin-bottom: 0.75rem; }
h3 { font-size: 1.25rem; margin-bottom: 0.5rem; }

p { margin-bottom: 1rem; }

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    border: none;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(59, 130, 246, 0.35);
}

.btn-light {
    background: white;
    color: var(--text-dark);
    box-shadow: var(--shadow-sm);
}

.btn-light:hover {
    background: var(--bg-light);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
}

.btn-outline:hover {
    background: var(--primary);
    color: white;
}

.btn-lg {
    padding: 18px 36px;
    font-size: 1.1rem;
}

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(226, 232, 240, 0.5);
    transition: all 0.3s;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text-dark);
}

.logo img {
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
}

.nav-main {
    display: flex;
    gap: 6px;
}

.nav-main a {
    padding: 10px 16px;
    color: var(--text-body);
    font-size: 0.95rem;
    font-weight: 500;
    border-radius: var(--radius);
    transition: all 0.25s;
}

.nav-main a:hover {
    color: var(--primary);
    background: rgba(59, 130, 246, 0.08);
}

.btn-nav-cta {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    border: none;
    padding: 10px 22px;
    border-radius: var(--radius-full);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-nav-cta:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-glow);
}

.mobile-menu {
    display: none;
    width: 44px;
    height: 44px;
    background: var(--bg-light);
    border: none;
    border-radius: 12px;
    cursor: pointer;
    position: relative;
}

.mobile-menu i {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--text-dark);
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    border-radius: 2px;
}

.mobile-menu i::before,
.mobile-menu i::after {
    content: "";
    position: absolute;
    width: 20px;
    height: 2px;
    background: var(--text-dark);
    border-radius: 2px;
    left: 0;
}

.mobile-menu i::before { top: -7px; }
.mobile-menu i::after { top: 7px; }

.hero {
    padding-top: 72px;
    min-height: auto;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
}

.hero-shapes {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
}

.shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.5;
    animation: float 8s ease-in-out infinite;
}

.shape-1 {
    width: 400px;
    height: 400px;
    background: linear-gradient(135deg, #93c5fd 0%, #c4b5fd 100%);
    top: -100px;
    right: -100px;
    animation-delay: 0s;
}

.shape-2 {
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, #a5f3fc 0%, #99f6e4 100%);
    bottom: 10%;
    left: -50px;
    animation-delay: 2s;
}

.shape-3 {
    width: 200px;
    height: 200px;
    background: linear-gradient(135deg, #fde68a 0%, #fca5a5 100%);
    top: 40%;
    right: 20%;
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% { transform: translateY(0) scale(1); }
    50% { transform: translateY(-30px) scale(1.05); }
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.breadcrumb {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.breadcrumb a { color: var(--text-body); }

.hero-badge {
    display: inline-block;
    padding: 8px 18px;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1) 0%, rgba(139, 92, 246, 0.1) 100%);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: var(--radius-full);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 20px;
}

.hero h1 {
    margin-bottom: 20px;
}

.hero h1 span {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-desc {
    font-size: 1.15rem;
    color: var(--text-body);
    margin-bottom: 12px;
}

.hero-date {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 28px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.phone-wrapper {
    position: relative;
}

.phone-glow {
    position: absolute;
    width: 280px;
    height: 280px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.4;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: pulse-glow 3s ease-in-out infinite;
}

@keyframes pulse-glow {
    0%, 100% { opacity: 0.4; transform: translate(-50%, -50%) scale(1); }
    50% { opacity: 0.6; transform: translate(-50%, -50%) scale(1.1); }
}

.phone-frame {
    position: relative;
    background: white;
    border-radius: 36px;
    padding: 10px;
    box-shadow: var(--shadow-lg);
    z-index: 2;
}

.phone-frame img {
    border-radius: 28px;
    max-width: 280px;
}

.floating-cards {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.float-card {
    position: absolute;
    background: white;
    padding: 12px 18px;
    border-radius: var(--radius);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-dark);
    box-shadow: var(--shadow-md);
    animation: float-card 4s ease-in-out infinite;
}

.card-1 { top: 15%; left: -20px; animation-delay: 0s; }
.card-2 { top: 50%; right: -30px; animation-delay: 1s; }
.card-3 { bottom: 20%; left: -10px; animation-delay: 2s; }

@keyframes float-card {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.hero-wave {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    line-height: 0;
}

.hero-wave svg {
    width: 100%;
    height: 80px;
}

.section {
    padding: 90px 0;
    position: relative;
}

.section:nth-child(odd) {
    background: white;
}

.section-badge {
    display: inline-block;
    padding: 6px 16px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 2px;
    border-radius: var(--radius-full);
    margin-bottom: 16px;
    text-transform: uppercase;
}

.section-badge.light {
    background: white;
    color: var(--primary);
    box-shadow: var(--shadow-sm);
}

.section h2 {
    text-align: center;
}

.section-subtitle {
    text-align: center;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto 50px;
}

.intro-cards {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.intro-card {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 40px;
    align-items: center;
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    padding: 30px;
    transition: transform 0.3s;
}

.intro-card:hover {
    transform: translateY(-5px);
}

.intro-card.reverse {
    grid-template-columns: 1fr 300px;
}

.intro-card.reverse .card-visual {
    order: 2;
}

.card-visual img {
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
}

.card-body h3 {
    color: var(--primary);
}

.section-download {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%) !important;
    color: white;
}

.section-download h2,
.section-download .section-subtitle {
    color: white !important;
}

.section-download .section-subtitle {
    opacity: 0.9;
}

.download-platforms {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 40px;
}

.platform-card {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-lg);
    padding: 32px 24px;
    text-align: center;
    transition: all 0.3s;
    position: relative;
}

.platform-card:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: translateY(-5px);
}

.platform-card.featured {
    background: white;
    color: var(--text-dark);
}

.platform-card.featured h3 {
    color: var(--text-dark) !important;
}

.platform-card.featured p {
    color: var(--text-body) !important;
}

.featured-tag {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, #f59e0b 0%, #f97316 100%);
    color: white;
    padding: 4px 16px;
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 700;
}

.platform-icon {
    margin-bottom: 16px;
    color: white;
    font-size: 2.5rem;
}

.platform-card.featured .platform-icon {
    color: var(--primary);
}

.platform-card h3 {
    margin-bottom: 10px;
    color: white !important;
    font-size: 1.1rem;
}

.platform-card p {
    color: rgba(255,255,255,0.9) !important;
    margin-bottom: 16px;
    font-size: 0.9rem;
    line-height: 1.5;
}

.version-box {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-lg);
    padding: 30px;
    text-align: center;
}

.version-content h3 {
    color: white !important;
    margin-bottom: 10px;
    font-size: 1.1rem;
}

.version-content p {
    color: rgba(255,255,255,0.9) !important;
    max-width: 800px;
    margin: 0 auto 16px;
    font-size: 0.9rem;
    line-height: 1.6;
}

.version-tags {
    display: flex;
    gap: 10px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.version-tags span {
    background: rgba(255, 255, 255, 0.2);
    padding: 5px 12px;
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    color: white !important;
}

.version-box .btn-primary {
    background: white;
    color: var(--primary);
}

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

.feature-item {
    background: white;
    border-radius: var(--radius-lg);
    padding: 32px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s;
    border: 1px solid var(--border);
}

.feature-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.feature-item h3 {
    color: var(--primary);
}

.tutorial-steps {
    max-width: 900px;
    margin: 0 auto;
}

.step-item {
    display: grid;
    grid-template-columns: 60px 1fr 200px;
    gap: 24px;
    align-items: center;
    background: white;
    border-radius: var(--radius-lg);
    padding: 28px;
    margin-bottom: 24px;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s;
}

.step-item:hover {
    box-shadow: var(--shadow-md);
}

.step-item.reverse {
    grid-template-columns: 200px 1fr 60px;
}

.step-item.reverse .step-number {
    order: 3;
}

.step-item.reverse .step-image {
    order: 1;
}

.step-number {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 800;
    box-shadow: var(--shadow-glow);
}

.step-content h3 {
    color: var(--primary);
}

.step-image img {
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
}

.tutorial-cta {
    text-align: center;
    margin-top: 40px;
}

.tutorial-cta p {
    color: var(--text-muted);
    margin-bottom: 16px;
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: white;
    border-radius: var(--radius);
    margin-bottom: 16px;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    border: 1px solid var(--border);
    transition: all 0.3s;
}

.faq-item:hover {
    border-color: var(--primary);
}

.faq-item summary {
    padding: 22px 28px;
    cursor: pointer;
    list-style: none;
    font-weight: 600;
    color: var(--text-dark);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-item summary::after {
    content: "+";
    font-size: 1.5rem;
    color: var(--primary);
    transition: transform 0.3s;
}

.faq-item[open] summary::after {
    transform: rotate(45deg);
}

.faq-item[open] {
    box-shadow: var(--shadow-md);
}

.faq-answer {
    padding: 0 28px 22px;
    color: var(--text-body);
}

.faq-more {
    text-align: center;
    margin-top: 40px;
}

.section-safety {
    background: linear-gradient(180deg, white 0%, var(--bg-light) 100%);
}

.safety-banner {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: 40px;
    height: 280px;
}

.safety-banner img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.safety-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(59, 130, 246, 0.9) 0%, rgba(139, 92, 246, 0.7) 100%);
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 40px;
    color: white;
}

.safety-overlay h3 {
    font-size: 2rem;
    color: white;
    margin-bottom: 8px;
}

.safety-overlay p {
    font-size: 1.1rem;
    opacity: 0.9;
}

.safety-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-bottom: 40px;
}

.safety-card {
    background: white;
    border-radius: var(--radius);
    padding: 28px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
    transition: all 0.3s;
}

.safety-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.safety-card h3 {
    margin-bottom: 12px;
}

.safety-card p {
    color: var(--text-body);
    margin-bottom: 0;
}

.risk-notice {
    background: linear-gradient(135deg, #fef3c7 0%, #fef9c3 100%);
    border: 1px solid #fbbf24;
    border-radius: var(--radius);
    padding: 24px 32px;
}

.risk-notice h3 {
    color: #b45309;
    margin-bottom: 10px;
}

.risk-notice p {
    color: #92400e;
    margin-bottom: 0;
}

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

.news-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 28px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
    transition: all 0.3s;
}

.news-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.news-date {
    display: inline-block;
    padding: 4px 12px;
    background: var(--bg-light);
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 14px;
}

.news-card h3 {
    color: var(--primary);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.about-image img {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.about-content .section-badge {
    margin-bottom: 12px;
}

.about-content h2 {
    text-align: left;
}

.contact-card {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    border-radius: var(--radius-lg);
    padding: 50px;
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 40px;
    align-items: center;
    color: white;
}

.contact-text h2 {
    color: white;
    text-align: left;
    margin-bottom: 16px;
}

.contact-text p {
    opacity: 0.95;
}

.contact-tags {
    display: flex;
    gap: 12px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.contact-tags span {
    background: rgba(255, 255, 255, 0.2);
    padding: 8px 16px;
    border-radius: var(--radius-full);
    font-size: 0.9rem;
}

.contact-text .btn-primary {
    background: white;
    color: var(--primary);
}

.contact-image img {
    border-radius: var(--radius-lg);
    max-width: 260px;
}

.footer {
    background: white;
    border-top: 1px solid var(--border);
    padding: 50px 0 24px;
}

.footer-main {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 60px;
    margin-bottom: 40px;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-dark);
}

.footer-brand img {
    border-radius: 10px;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.footer-col h4 {
    font-size: 0.95rem;
    margin-bottom: 14px;
    color: var(--text-dark);
}

.footer-col a {
    display: block;
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 10px;
}

.footer-col a:hover {
    color: var(--primary);
}

.footer-bottom {
    border-top: 1px solid var(--border);
    padding-top: 20px;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
}

.float-buttons {
    position: fixed;
    right: 24px;
    bottom: 28px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    z-index: 999;
}

.btn-top {
    width: 50px;
    height: 50px;
    background: white;
    border: 1px solid var(--border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
    color: var(--text-body);
}

.btn-top.visible {
    opacity: 1;
    visibility: visible;
}

.btn-top:hover {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

.btn-chat {
    display: flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    border: none;
    padding: 14px 22px;
    border-radius: var(--radius-full);
    font-weight: 600;
    cursor: pointer;
    box-shadow: var(--shadow-glow);
    transition: all 0.3s;
}

.btn-chat:hover {
    transform: scale(1.05);
}

.nav-mobile {
    display: none;
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: white;
    padding: 20px;
    box-shadow: var(--shadow-lg);
    z-index: 999;
}

.nav-mobile.active {
    display: block;
}

.nav-mobile a {
    display: block;
    padding: 14px 16px;
    color: var(--text-dark);
    font-weight: 500;
    border-radius: var(--radius);
    margin-bottom: 4px;
}

.nav-mobile a:hover {
    background: var(--bg-light);
}

.nav-mobile .btn {
    width: 100%;
    margin-top: 12px;
}

@media (max-width: 1024px) {
    .nav-main, .btn-nav-cta {
        display: none;
    }

    .mobile-menu {
        display: block;
    }

    .hero {
        min-height: auto;
        padding-top: 72px;
        padding-bottom: 40px;
    }

    .hero-grid {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 30px;
    }

    .hero-actions {
        justify-content: center;
    }

    .hero-visual {
        display: none;
    }

    .hero-shapes .shape {
        opacity: 0.3;
    }

    .hero-shapes .shape-1 {
        width: 200px;
        height: 200px;
        top: -50px;
        right: -50px;
    }

    .hero-shapes .shape-2 {
        width: 150px;
        height: 150px;
        bottom: 20%;
        left: -30px;
    }

    .hero-shapes .shape-3 {
        display: none;
    }

    .floating-cards {
        display: none;
    }

    .hero-wave svg {
        height: 40px;
    }

    .intro-card,
    .intro-card.reverse {
        grid-template-columns: 1fr;
        padding: 24px;
    }

    .intro-card.reverse .card-visual {
        order: 0;
    }

    .card-visual {
        text-align: center;
    }

    .card-visual img {
        max-width: 200px;
        margin: 0 auto;
    }

    .download-platforms {
        grid-template-columns: 1fr;
        gap: 16px;
        margin-bottom: 24px;
    }

    .platform-card {
        padding: 24px 20px;
    }

    .version-box {
        padding: 24px 20px;
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .step-item,
    .step-item.reverse {
        grid-template-columns: 50px 1fr;
    }

    .step-image {
        display: none;
    }

    .step-item.reverse .step-number {
        order: 0;
    }

    .safety-grid {
        grid-template-columns: 1fr;
    }

    .news-grid {
        grid-template-columns: 1fr;
    }

    .about-grid {
        grid-template-columns: 1fr;
    }

    .about-image {
        order: -1;
    }

    .contact-card {
        grid-template-columns: 1fr;
        padding: 36px;
    }

    .contact-image {
        display: none;
    }

    .footer-main {
        grid-template-columns: 1fr;
        gap: 36px;
    }
}

@media (max-width: 768px) {
    .header-inner {
        height: 60px;
    }

    .hero {
        padding-top: 60px;
        padding-bottom: 30px;
    }

    .hero-text {
        padding: 30px 0;
    }

    .breadcrumb {
        margin-bottom: 12px;
        font-size: 0.8rem;
    }

    .hero-badge {
        padding: 6px 14px;
        font-size: 0.8rem;
        margin-bottom: 16px;
    }

    .hero h1 {
        font-size: 1.75rem;
        margin-bottom: 14px;
    }

    .hero-desc {
        font-size: 1rem;
        margin-bottom: 8px;
    }

    .hero-date {
        margin-bottom: 20px;
    }

    .hero-wave {
        display: none;
    }

    .section {
        padding: 50px 0;
    }

    .section-badge {
        font-size: 0.7rem;
        padding: 5px 12px;
        margin-bottom: 12px;
    }

    .section h2 {
        font-size: 1.35rem;
    }

    .section-subtitle {
        font-size: 0.95rem;
        margin-bottom: 30px;
    }

    .section-download {
        padding: 40px 0;
    }

    .download-platforms {
        gap: 12px;
        margin-bottom: 20px;
    }

    .platform-card {
        padding: 20px 16px;
    }

    .platform-icon {
        font-size: 2rem;
        margin-bottom: 12px;
    }

    .platform-card h3 {
        font-size: 1rem;
    }

    .platform-card p {
        font-size: 0.85rem;
        margin-bottom: 14px;
    }

    .version-box {
        padding: 20px 16px;
    }

    .version-content h3 {
        font-size: 1rem;
    }

    .version-content p {
        font-size: 0.85rem;
    }

    .version-tags {
        gap: 8px;
        margin-bottom: 16px;
    }

    .version-tags span {
        font-size: 0.75rem;
        padding: 4px 10px;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .feature-item {
        padding: 24px;
    }

    .feature-icon {
        font-size: 2rem;
        margin-bottom: 12px;
    }

    .intro-cards {
        gap: 24px;
    }

    .intro-card {
        padding: 20px;
        gap: 20px;
    }

    .card-visual img {
        max-width: 160px;
    }

    .step-item {
        padding: 20px;
        margin-bottom: 16px;
        gap: 16px;
    }

    .step-number {
        width: 44px;
        height: 44px;
        font-size: 1.2rem;
    }

    .faq-item summary {
        padding: 18px 20px;
        font-size: 0.95rem;
    }

    .faq-answer {
        padding: 0 20px 18px;
        font-size: 0.9rem;
    }

    .safety-banner {
        height: auto;
        margin-bottom: 24px;
    }

    .safety-overlay {
        padding: 24px;
    }

    .safety-overlay h3 {
        font-size: 1.25rem;
    }

    .safety-overlay p {
        font-size: 0.95rem;
    }

    .safety-card {
        padding: 20px;
    }

    .risk-notice {
        padding: 20px;
    }

    .news-card {
        padding: 20px;
    }

    .about-image img {
        max-width: 280px;
        margin: 0 auto;
    }

    .contact-card {
        padding: 28px 20px;
    }

    .contact-text h2 {
        font-size: 1.25rem;
    }

    .footer {
        padding: 36px 0 20px;
    }

    .footer-links {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }

    .hero-actions {
        flex-direction: column;
        width: 100%;
        gap: 12px;
    }

    .hero-actions .btn {
        width: 100%;
        padding: 14px 24px;
    }

    .float-buttons {
        right: 16px;
        bottom: 20px;
    }

    .btn-chat span {
        display: none;
    }

    .btn-chat {
        width: 50px;
        height: 50px;
        padding: 0;
        justify-content: center;
        border-radius: 50%;
    }

    .btn-top {
        width: 44px;
        height: 44px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .logo {
        font-size: 1.15rem;
    }

    .logo img {
        width: 32px;
        height: 32px;
    }

    .hero h1 {
        font-size: 1.5rem;
    }

    .hero-desc {
        font-size: 0.9rem;
    }

    .section {
        padding: 40px 0;
    }

    .section h2 {
        font-size: 1.2rem;
    }

    .section-download {
        padding: 36px 0;
    }

    .platform-card {
        padding: 18px 14px;
    }

    .intro-card {
        border-radius: 16px;
    }

    .card-visual {
        display: none;
    }

    .platform-card {
        border-radius: 16px;
    }

    .footer-links {
        grid-template-columns: 1fr;
    }

    .footer-main {
        gap: 24px;
    }

    .contact-tags {
        flex-direction: column;
    }

    .contact-tags span {
        text-align: center;
    }
}