/* 基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #3b82f6;
    --primary-dark: #2563eb;
    --secondary: #8b5cf6;
    --accent: #06b6d4;
    --dark: #1e293b;
    --light: #f8fafc;
    --gray: #64748b;
    --success: #10b981;
    --gradient: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background: #fff;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid rgba(0,0,0,0.05);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 15px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--dark);
}

.logo-icon {
    font-size: 1.8rem;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-links a {
    text-decoration: none;
    color: var(--gray);
    font-weight: 500;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: var(--primary);
}

.btn-nav {
    background: var(--gradient);
    color: white;
    padding: 10px 24px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: transform 0.3s, box-shadow 0.3s;
}

.btn-nav:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(59, 130, 246, 0.3);
}

/* Hero 区域 */
.hero {
    padding: 140px 0 80px;
    background: linear-gradient(180deg, #eff6ff 0%, #fff 100%);
    overflow: hidden;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.badge {
    display: inline-block;
    background: rgba(59, 130, 246, 0.1);
    color: var(--primary);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 20px;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.2;
    color: var(--dark);
    margin-bottom: 20px;
}

.gradient-text {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-desc {
    font-size: 1.2rem;
    color: var(--gray);
    margin-bottom: 25px;
    line-height: 1.8;
}

.hero-features {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 25px;
}

.feature-tag {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
}

.hero-buttons {
    display: flex;
    gap: 15px;
    margin-bottom: 20px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: 10px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: var(--gradient);
    color: white;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.5);
}

.btn-secondary {
    background: white;
    color: var(--dark);
    border: 2px solid #e2e8f0;
}

.btn-secondary:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.btn-large {
    padding: 16px 32px;
    font-size: 1.1rem;
}

.version-info {
    color: var(--gray);
    font-size: 0.9rem;
}

/* 软件预览图 */
.software-preview {
    background: white;
    border-radius: 16px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.15);
    overflow: hidden;
    border: 1px solid #e2e8f0;
}

.window-header {
    background: #f1f5f9;
    padding: 12px 16px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.window-dots {
    display: flex;
    gap: 6px;
}

.window-dots span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #cbd5e1;
}

.window-dots span:first-child { background: #ef4444; }
.window-dots span:nth-child(2) { background: #f59e0b; }
.window-dots span:last-child { background: #10b981; }

.window-title {
    flex: 1;
    text-align: center;
    font-size: 0.85rem;
    color: var(--gray);
    font-weight: 500;
}

.window-content {
    padding: 15px;
}

.preview-tabs {
    display: flex;
    gap: 5px;
    margin-bottom: 15px;
    border-bottom: 1px solid #e2e8f0;
    padding-bottom: 10px;
}

.tab-btn {
    padding: 8px 16px;
    border: none;
    background: transparent;
    font-size: 0.85rem;
    cursor: pointer;
    border-radius: 6px;
    transition: all 0.3s;
}

.tab-btn.active {
    background: var(--primary);
    color: white;
}

.preview-main {
    display: grid;
    grid-template-columns: 140px 1fr;
    gap: 15px;
}

.preview-sidebar {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.mode-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s;
    font-size: 0.85rem;
}

.mode-item.active {
    background: rgba(59, 130, 246, 0.1);
    color: var(--primary);
}

.mode-icon {
    font-size: 1.2rem;
}

.preview-area {
    background: #1e293b;
    border-radius: 8px;
    padding: 15px;
    min-height: 200px;
}

.recording-preview {
    position: relative;
    height: 150px;
}

.preview-placeholder {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: rgba(255,255,255,0.5);
}

.preview-icon {
    font-size: 2.5rem;
    display: block;
    margin-bottom: 8px;
}

.preview-placeholder p {
    font-size: 0.85rem;
}

.rec-indicator {
    position: absolute;
    top: 10px;
    right: 10px;
    display: flex;
    align-items: center;
    gap: 6px;
    background: rgba(239, 68, 68, 0.9);
    color: white;
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
}

.rec-dot {
    width: 8px;
    height: 8px;
    background: white;
    border-radius: 50%;
    animation: blink 1s infinite;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

.preview-controls {
    display: flex;
    gap: 8px;
    margin-top: 15px;
}

.control-btn {
    flex: 1;
    padding: 8px;
    border: none;
    border-radius: 6px;
    font-size: 0.75rem;
    cursor: pointer;
    transition: all 0.3s;
}

.control-btn.record {
    background: #ef4444;
    color: white;
}

.control-btn.pause, .control-btn.stop {
    background: rgba(255,255,255,0.1);
    color: white;
}

/* 通用区域标题 */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header.light {
    color: white;
}

.section-header.light p {
    color: rgba(255,255,255,0.8);
}

.section-tag {
    display: inline-block;
    background: rgba(59, 130, 246, 0.1);
    color: var(--primary);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 15px;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 10px;
}

.section-header p {
    color: var(--gray);
    font-size: 1.1rem;
}

/* 功能特性 */
.features {
    padding: 100px 0;
    background: white;
}

.features-main {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 60px;
    margin-bottom: 60px;
}

.donate-sidebar {
    position: sticky;
    top: 120px;
    align-self: start;
}

.donate-info {
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    text-align: center;
}

.donate-info h3 {
    font-size: 1.3rem;
    color: var(--dark);
    margin-bottom: 15px;
}

.donate-info p {
    color: #92400e;
    line-height: 1.4;
    margin-bottom: 10px;
    font-size: 0.8rem;
    white-space: pre-line;
}

.donate-info strong {
    color: #b45309;
}

.donate-info .qr-code {
    width: 160px;
    height: 160px;
    margin: 20px auto;
}

.donate-info .qr-code svg {
    width: 100%;
    height: 100%;
}

.donate-info .qr-label {
    font-size: 0.8rem;
    color: #92400e;
    margin-bottom: 10px;
}

.donate-note {
    font-size: 0.7rem;
    color: #92400e;
    margin-bottom: 15px;
    font-weight: 500;
}

.payment-methods {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 20px;
}

.payment-text {
    font-size: 0.7rem;
    color: #92400e;
    font-weight: 600;
    padding: 4px 8px;
    background: rgba(255,255,255,0.8);
    border-radius: 15px;
    transition: all 0.3s;
}

.payment-text:hover {
    transform: scale(1.1);
    background: rgba(255,255,255,1);
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.community-link {
    display: inline-block;
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white;
    padding: 10px 25px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: transform 0.3s, box-shadow 0.3s;
    margin-bottom: 20px;
}

/* 小型捐赠用户展示 */
.donors-section-small {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px dashed #d97706;
}

.donors-section-small h4 {
    font-size: 1rem;
    color: var(--dark);
    margin-bottom: 15px;
    text-align: center;
}

.donors-carousel-small {
    overflow: hidden;
    padding: 10px 0;
}

.donors-track-small {
    display: flex;
    gap: 10px;
    animation: scroll 10s linear infinite;
}

.donors-track-small:hover {
    animation-play-state: paused;
}

@keyframes scroll {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

.donor-card-small {
    flex-shrink: 0;
    background: white;
    border-radius: 8px;
    padding: 10px 15px;
    display: flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    font-size: 0.8rem;
}

.donor-avatar-small {
    font-size: 1.2rem;
}

.donor-name-small {
    font-weight: 600;
    color: var(--dark);
}

.donor-amount-small {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    color: white;
    padding: 2px 8px;
    border-radius: 15px;
    font-size: 0.7rem;
    font-weight: 600;
}

.features-content {
    flex: 1;
}

.feature-block {
    display: grid;
    grid-template-columns: 100px 1fr;
    gap: 40px;
    margin-bottom: 60px;
    align-items: start;
}

.feature-block.reverse {
    direction: rtl;
}

.feature-block.reverse .feature-content {
    direction: ltr;
}

.feature-icon-large {
    font-size: 4rem;
    text-align: center;
}

.feature-content h3 {
    font-size: 1.8rem;
    margin-bottom: 15px;
    color: var(--dark);
}

.feature-content > p {
    color: var(--gray);
    margin-bottom: 20px;
    font-size: 1.1rem;
}

.feature-list {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.feature-list li {
    color: var(--gray);
    font-size: 0.95rem;
}

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

.feature-card {
    padding: 30px;
    background: #f8fafc;
    border-radius: 16px;
    text-align: center;
    transition: all 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 15px;
}

.feature-card h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: var(--dark);
}

.feature-card p {
    color: var(--gray);
    font-size: 0.95rem;
}

/* 使用场景 */
.scenarios {
    padding: 100px 0;
    background: #f8fafc;
}

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

.scenario-card {
    background: white;
    padding: 30px;
    border-radius: 16px;
    text-align: center;
    transition: all 0.3s;
    border: 1px solid #e2e8f0;
}

.scenario-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.1);
}

.scenario-icon {
    font-size: 3rem;
    margin-bottom: 15px;
}

.scenario-card h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: var(--dark);
}

.scenario-card p {
    color: var(--gray);
    font-size: 0.95rem;
}

/* 广告位 */
.ad-banner {
    padding: 40px 0;
    background: #f8fafc;
}

.ad-placeholder {
    background: linear-gradient(135deg, #e2e8f0 0%, #cbd5e1 100%);
    border-radius: 12px;
    padding: 80px 20px;
    text-align: center;
    border: 2px dashed #94a3b8;
    color: #64748b;
    font-size: 1.2rem;
    font-weight: 600;
    min-height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* 软件截图 */
.screenshots {
    padding: 100px 0;
    background: white;
}

.screenshots-slider {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.screenshot-item {
    display: none;
}

.screenshot-item.active {
    display: block;
}

.screenshot-card {
    background: #f8fafc;
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid #e2e8f0;
}

.screenshot-header {
    background: var(--primary);
    color: white;
    padding: 12px 20px;
    font-weight: 600;
}

.screenshot-content {
    padding: 20px;
}

.mock-ui {
    display: grid;
    grid-template-columns: 120px 1fr;
    gap: 15px;
    min-height: 300px;
}

.mock-sidebar {
    background: #1e293b;
    border-radius: 8px;
    padding: 10px;
}

.mock-nav {
    padding: 10px 8px;
    color: rgba(255,255,255,0.6);
    font-size: 0.8rem;
    border-radius: 6px;
    margin-bottom: 5px;
}

.mock-nav.active {
    background: var(--primary);
    color: white;
}

.mock-main {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.mock-preview-area {
    flex: 1;
    background: #1e293b;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.mock-screen {
    width: 80%;
    height: 60%;
    background: rgba(255,255,255,0.1);
    border-radius: 4px;
}

.mock-screenshot-list {
    flex: 1;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}

.mock-screenshot-item {
    background: #1e293b;
    border-radius: 8px;
    height: 80px;
}

.mock-trim-area {
    flex: 1;
    background: #1e293b;
    border-radius: 8px;
    padding: 20px;
    display: flex;
    align-items: center;
}

.mock-timeline {
    flex: 1;
    height: 8px;
    background: rgba(255,255,255,0.2);
    border-radius: 4px;
    position: relative;
}

.mock-timeline-bar {
    position: absolute;
    left: 15%;
    right: 20%;
    top: 0;
    height: 100%;
    background: var(--primary);
    border-radius: 4px;
}

.mock-timeline-handle {
    position: absolute;
    top: -4px;
    width: 16px;
    height: 16px;
    background: white;
    border-radius: 50%;
}

.mock-timeline-handle.left { left: 15%; }
.mock-timeline-handle.right { right: 20%; }

.mock-controls {
    display: flex;
    gap: 10px;
}

.mock-btn {
    padding: 10px 20px;
    background: #e2e8f0;
    border-radius: 6px;
    font-size: 0.85rem;
    color: var(--gray);
}

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

.screenshot-dots {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 20px;
}

.dot {
    width: 12px;
    height: 12px;
    background: #e2e8f0;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s;
}

.dot.active {
    background: var(--primary);
    width: 30px;
    border-radius: 6px;
}

/* 下载区域 */
.download {
    padding: 100px 0;
    background: var(--gradient);
}

.download-main {
    display: flex;
    justify-content: center;
    margin-bottom: 30px;
}

.download-card.main-download {
    background: white;
    border-radius: 20px;
    padding: 40px 50px;
    text-align: center;
    max-width: 400px;
    position: relative;
}

.platform-badge {
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--dark);
    color: white;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.platform-icon {
    font-size: 4rem;
    margin-bottom: 15px;
}

.download-card h3 {
    font-size: 1.5rem;
    margin-bottom: 10px;
    color: var(--dark);
}

.version {
    color: var(--gray);
    font-size: 0.9rem;
    margin-bottom: 20px;
}

.download-info {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
    margin-bottom: 25px;
    padding: 15px;
    background: #f8fafc;
    border-radius: 10px;
}

.info-item {
    text-align: center;
}

.info-label {
    display: block;
    font-size: 0.75rem;
    color: var(--gray);
    margin-bottom: 4px;
}

.info-value {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--dark);
}

.btn-download {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--primary);
    color: white;
    padding: 14px 32px;
    border-radius: 10px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s;
}

.btn-download:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

.download-note {
    color: var(--gray);
    font-size: 0.8rem;
    margin-top: 15px;
}

.download-other {
    text-align: center;
    color: rgba(255,255,255,0.8);
}

.other-platforms {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-top: 15px;
}

.platform-tag.coming {
    background: rgba(255,255,255,0.2);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.85rem;
}

/* FAQ */
.faq {
    padding: 100px 0;
    background: #f8fafc;
}

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

.faq-item {
    background: white;
    border-radius: 12px;
    margin-bottom: 15px;
    overflow: hidden;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.faq-question {
    padding: 20px 25px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-weight: 600;
    color: var(--dark);
    transition: background 0.3s;
}

.faq-question:hover {
    background: #f8fafc;
}

.faq-icon {
    transition: transform 0.3s;
    color: var(--primary);
}

.faq-item.active .faq-icon {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
}

.faq-item.active .faq-answer {
    max-height: 200px;
}

.faq-answer p {
    padding: 0 25px 20px;
    color: var(--gray);
    line-height: 1.7;
}

/* CTA */
.cta {
    padding: 100px 0;
    background: var(--dark);
    text-align: center;
}

.cta h2 {
    font-size: 2.5rem;
    color: white;
    margin-bottom: 15px;
}

.cta p {
    color: rgba(255,255,255,0.8);
    font-size: 1.2rem;
    margin-bottom: 30px;
}

.btn-cta {
    background: var(--gradient);
    color: white;
    padding: 16px 40px;
    font-size: 1.1rem;
    box-shadow: 0 10px 30px rgba(59, 130, 246, 0.3);
}

.btn-cta:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(59, 130, 246, 0.4);
}

/* 页脚 */
.footer {
    background: #0f172a;
    color: white;
    padding: 60px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand .logo {
    color: white;
    margin-bottom: 15px;
}

.footer-brand p {
    color: rgba(255,255,255,0.7);
    margin-bottom: 10px;
}

.copyright {
    color: rgba(255,255,255,0.5);
    font-size: 0.9rem;
}

.footer-links h4 {
    font-size: 1rem;
    margin-bottom: 20px;
    color: white;
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-links a:hover {
    color: white;
}

/* 弹窗 */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 2000;
    justify-content: center;
    align-items: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: white;
    border-radius: 20px;
    padding: 40px;
    max-width: 450px;
    width: 90%;
    position: relative;
    text-align: center;
}

.close {
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--gray);
}

.close:hover {
    color: var(--dark);
}

.modal-body .download-icon {
    font-size: 4rem;
    margin-bottom: 15px;
}

.modal-body h3 {
    font-size: 1.5rem;
    margin-bottom: 10px;
    color: var(--dark);
}

.modal-body p {
    color: var(--gray);
    margin-bottom: 20px;
}

.progress-bar {
    height: 6px;
    background: #e2e8f0;
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 15px;
}

.progress {
    height: 100%;
    width: 0;
    background: var(--gradient);
    border-radius: 3px;
    transition: width 2s ease;
}

.modal.active .progress {
    width: 100%;
}

.tip {
    font-size: 0.85rem;
    color: var(--gray);
    background: #f8fafc;
    padding: 10px;
    border-radius: 8px;
}



/* 响应式 */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

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

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

    .feature-block {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .feature-block.reverse {
        direction: ltr;
    }

    .feature-list {
        grid-template-columns: 1fr;
    }

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

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

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .hero {
        padding: 120px 0 60px;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .features-grid,
    .scenarios-grid {
        grid-template-columns: 1fr;
    }

    .download-info {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .mock-ui {
        grid-template-columns: 1fr;
    }

    .mock-sidebar {
        display: flex;
        flex-wrap: wrap;
        gap: 5px;
    }

    .mock-nav {
        margin-bottom: 0;
    }
}