:root {
    --bg: #F7F9FC;
    --bg-dark: #0B0F19;
    --bg-card-dark: #1C2230;
    --fg: #0F172A;
    --fg-light: #FFFFFF;
    --muted: #F1F5F9;
    --muted-fg: #64748B;
    --muted-fg-light: #94A3B8;
    --accent: #0052FF;
    --accent-2: #2F6BFF;
    --accent-fg: #FFFFFF;
    --border: #E2E8F0;
    --border-dark: #2A3344;
    --card: #FFFFFF;
    --card-dark: #1C2230;
    --huawei-red: #C7000B;
    --huawei-red-dark: #8A0008;
    --huawei-red-light: #E60012;
    --tech-blue: #2F6BFF;
    --data-cyan: #00C2FF;
    --health-green: #00A86B;
    --vivid-purple: #7C3AED;
    --vivid-pink: #EC4899;
    --vivid-orange: #F97316;
    --vivid-yellow: #FBBF24;
    --gradient-vivid: linear-gradient(135deg, #0052FF 0%, #7C3AED 50%, #EC4899 100%);
    --gradient-warm: linear-gradient(135deg, #F97316 0%, #EC4899 50%, #7C3AED 100%);
    --gradient-cool: linear-gradient(135deg, #00C2FF 0%, #0052FF 50%, #7C3AED 100%);

    --font-display: "HarmonyOS Sans SC", "HarmonyOS Sans", "Microsoft YaHei", "微软雅黑", sans-serif;
    --font-body: "HarmonyOS Sans SC", "HarmonyOS Sans", "Microsoft YaHei", "微软雅黑", sans-serif;
    --font-mono: "HarmonyOS Sans SC", Consolas, "Courier New", monospace;

    --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.07);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.08);
    --shadow-xl: 0 20px 25px rgba(0,0,0,0.1);
    --shadow-accent: 0 4px 14px rgba(0,82,255,0.25);
    --shadow-accent-lg: 0 8px 24px rgba(0,82,255,0.35);
    --shadow-vivid: 0 4px 20px rgba(124,58,237,0.3);

    --radius: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-body);
    background: var(--bg);
    color: var(--fg);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

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

.section {
    padding: 40px 0;
    position: relative;
}

.section-dark {
    background: var(--bg-dark);
    color: var(--fg-light);
}

.section-bg-dots {
    position: absolute;
    inset: 0;
    background-image: radial-gradient(circle, rgba(255,255,255,0.08) 1px, transparent 1px);
    background-size: 32px 32px;
    pointer-events: none;
}

.section-header {
    text-align: center;
    margin-bottom: 40px;
}

.section-label {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 13px;
    font-weight: 500;
    color: var(--accent);
    background: rgba(0,82,255,0.08);
    padding: 6px 14px;
    border-radius: 100px;
    margin-bottom: 20px;
    letter-spacing: 0.5px;
}

.section-label-light {
    color: var(--accent-2);
    background: rgba(77,124,255,0.12);
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(18px, 3vw, 28px);
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
}

.section-title-light {
    color: var(--fg-light);
}

.section-desc {
    font-size: 15px;
    color: var(--muted-fg);
    max-width: 600px;
    margin: 0 auto;
}

.section-desc-light {
    color: var(--muted-fg-light);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 14px;
    border-radius: var(--radius);
    padding: 10px 22px;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: all 0.2s ease-out;
    white-space: nowrap;
}

.btn-sm {
    padding: 8px 18px;
    font-size: 14px;
}

.btn-lg {
    padding: 12px 28px;
    font-size: 15px;
}

.btn-block {
    width: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
    color: var(--accent-fg);
    box-shadow: var(--shadow-accent);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--accent-2) 0%, var(--vivid-purple) 100%);
    box-shadow: var(--shadow-accent-lg);
    transform: translateY(-1px);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-ghost {
    background: transparent;
    color: var(--fg);
    border: 1px solid var(--border);
}

.btn-ghost:hover {
    background: var(--muted);
    border-color: var(--muted-fg);
}

.section-dark .btn-ghost {
    color: var(--fg-light);
    border-color: var(--border-dark);
}

.section-dark .btn-ghost:hover {
    background: var(--card-dark);
    border-color: var(--muted-fg-light);
}

.btn-arrow {
    transition: transform 0.2s ease-out;
}

.btn:hover .btn-arrow {
    transform: translateX(4px);
}

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(250,250,250,0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid transparent;
    transition: all 0.3s ease-out;
}

.nav.scrolled {
    border-bottom-color: var(--border);
    box-shadow: var(--shadow-sm);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 20px;
    color: var(--fg);
}

.logo-icon {
    font-size: 22px;
}

.nav-links {
    display: flex;
    gap: 28px;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    color: var(--muted-fg);
    transition: color 0.2s ease-out;
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.nav-toggle span {
    width: 20px;
    height: 2px;
    background: var(--fg);
    border-radius: 2px;
    transition: all 0.3s ease-out;
}

.hero {
    padding: 50px 0 36px;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, rgba(0,82,255,0.1) 0%, rgba(124,58,237,0.08) 35%, rgba(236,72,153,0.06) 70%, transparent 100%);
}

.hero-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.hero-glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.4;
}

.glow-1 {
    width: 500px;
    height: 500px;
    background: var(--accent);
    top: -100px;
    right: -100px;
}

.glow-2 {
    width: 400px;
    height: 400px;
    background: var(--vivid-purple);
    bottom: -100px;
    left: -100px;
    opacity: 0.25;
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(15,23,42,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(15,23,42,0.03) 1px, transparent 1px);
    background-size: 48px 48px;
    mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 36px;
    align-items: center;
    position: relative;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 500;
    color: var(--accent);
    background: rgba(0,82,255,0.08);
    padding: 6px 14px;
    border-radius: 100px;
    margin-bottom: 24px;
}

.pulse-dot {
    width: 8px;
    height: 8px;
    background: var(--accent);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.3); opacity: 0.7; }
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(24px, 3.5vw, 38px);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: 20px;
}

.gradient-text {
    background: linear-gradient(135deg, #0052FF 0%, #7C3AED 50%, #EC4899 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    background-size: 200% 200%;
    animation: gradient-shift 6s ease infinite;
}

@keyframes gradient-shift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.hero-subtitle {
    font-size: 13px;
    color: var(--muted-fg);
    line-height: 1.7;
    margin-bottom: 32px;
    max-width: 520px;
}

.hero-actions {
    display: flex;
    gap: 14px;
    margin-bottom: 36px;
    flex-wrap: wrap;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    padding-top: 32px;
    border-top: 1px solid var(--border);
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat-value {
    font-family: var(--font-display);
    font-size: 28px;
    font-weight: 800;
    color: var(--fg);
    line-height: 1;
}

.stat-label {
    font-size: 13px;
    color: var(--muted-fg);
    margin-top: 4px;
}

.hero-visual {
    position: relative;
}

.hero-screenshot {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border);
    aspect-ratio: 16/10;
}

.hero-screenshot img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.screenshot-glow {
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 50% 50%, rgba(0,82,255,0.08), transparent 70%);
    pointer-events: none;
}

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

.feature-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
    transition: all 0.3s ease-out;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-vivid);
    opacity: 0;
    transition: opacity 0.3s ease-out;
}

.feature-card:hover {
    border-color: var(--accent);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.feature-card:hover::before {
    opacity: 1;
}

.feature-icon {
    width: 48px;
    height: 48px;
    background: rgba(0,82,255,0.08);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    margin-bottom: 20px;
}

.feature-icon svg {
    width: 24px;
    height: 24px;
}

.feature-card h3 {
    font-family: var(--font-display);
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 6px;
}

.feature-card p {
    color: var(--muted-fg);
    font-size: 14px;
    line-height: 1.6;
}

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

.experiment-card {
    background: var(--card-dark);
    border: 1px solid var(--border-dark);
    border-radius: var(--radius-lg);
    padding: 22px;
    transition: all 0.3s ease-out;
    position: relative;
}

.experiment-card:hover {
    border-color: var(--accent-2);
    transform: translateY(-4px);
    box-shadow: 0 10px 30px rgba(0,82,255,0.15);
}

.experiment-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.experiment-tag {
    font-size: 12px;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 100px;
}

.tag-free {
    background: rgba(34,197,94,0.15);
    color: #4ADE80;
}

.tag-paid {
    background: rgba(0,82,255,0.15);
    color: var(--accent-2);
}

.experiment-num {
    font-family: var(--font-mono);
    font-size: 14px;
    color: var(--muted-fg-light);
    font-weight: 500;
}

.experiment-card h3 {
    font-family: var(--font-display);
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 6px;
    color: var(--fg-light);
}

.experiment-card p {
    color: var(--muted-fg-light);
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 16px;
}

.experiment-meta {
    display: flex;
    gap: 12px;
    font-size: 12px;
    color: var(--muted-fg-light);
}

.experiment-meta span {
    padding: 4px 8px;
    background: rgba(255,255,255,0.05);
    border-radius: 6px;
}

.screenshots-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-auto-rows: 180px;
    gap: 14px;
}

.screenshot-item {
    position: relative;
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border);
    cursor: pointer;
    transition: all 0.3s ease-out;
}

.screenshot-item:hover {
    box-shadow: var(--shadow-lg);
    transform: scale(1.02);
}

.screenshot-large {
    grid-column: span 2;
    grid-row: span 2;
}

.screenshot-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.screenshot-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 12px 16px;
    background: linear-gradient(to top, rgba(0,0,0,0.7), transparent);
    color: white;
    font-size: 13px;
    font-weight: 500;
    opacity: 0;
    transition: opacity 0.3s ease-out;
}

.screenshot-item:hover .screenshot-caption {
    opacity: 1;
}

.screenshots-grid-mobile {
    grid-template-columns: repeat(6, 1fr);
    grid-auto-rows: 280px;
}

.screenshots-grid-mobile .screenshot-item {
    border-color: rgba(255, 255, 255, 0.1);
}

.screenshots-grid-mobile .screenshot-caption {
    opacity: 1;
    font-size: 12px;
    padding: 8px 10px;
}

.pricing-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    max-width: 800px;
    margin: 0 auto;
}

.pricing-card {
    background: var(--card-dark);
    border: 1px solid var(--border-dark);
    border-radius: var(--radius-lg);
    padding: 24px;
    position: relative;
    transition: all 0.3s ease-out;
}

.pricing-card-featured {
    border-color: var(--accent);
    box-shadow: 0 0 0 1px var(--accent), var(--shadow-accent-lg);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent);
    color: white;
    font-size: 12px;
    font-weight: 600;
    padding: 4px 14px;
    border-radius: 100px;
}

.pricing-header {
    margin-bottom: 24px;
}

.pricing-header h3 {
    font-family: var(--font-display);
    font-size: 18px;
    font-weight: 700;
    color: var(--fg-light);
    margin-bottom: 6px;
}

.pricing-price {
    display: flex;
    align-items: baseline;
    gap: 8px;
}

.price-amount {
    font-family: var(--font-display);
    font-size: 32px;
    font-weight: 800;
    color: var(--fg-light);
}

.price-period {
    font-size: 14px;
    color: var(--muted-fg-light);
}

.pricing-features {
    list-style: none;
    margin-bottom: 28px;
}

.pricing-features li {
    padding: 8px 0;
    color: var(--muted-fg-light);
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.pricing-features li::before {
    content: "✓";
    color: #4ADE80;
    font-weight: 700;
}

.feature-new::before {
    color: var(--accent-2) !important;
}

.pricing-note {
    text-align: center;
    margin-top: 32px;
    color: var(--muted-fg-light);
    font-size: 14px;
}

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

.tutorial-step {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.step-number {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    background: var(--accent);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 18px;
}

.step-content h3 {
    font-family: var(--font-display);
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 4px;
}

.step-content p {
    color: var(--muted-fg);
    font-size: 14px;
    line-height: 1.6;
}

.tutorial-cli {
    background: var(--bg-dark);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.cli-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    background: rgba(255,255,255,0.03);
    border-bottom: 1px solid var(--border-dark);
}

.cli-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.dot-red { background: #FF5F57; }
.dot-yellow { background: #FEBC2E; }
.dot-green { background: #28C840; }

.cli-title {
    margin-left: 8px;
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--muted-fg-light);
}

.cli-body {
    padding: 20px 24px;
    overflow-x: auto;
}

.cli-body pre {
    font-family: var(--font-mono);
    font-size: 13px;
    line-height: 1.7;
}

.cli-prompt { color: #4ADE80; }
.cli-cmd { color: #60A5FA; }
.cli-output { color: var(--muted-fg-light); }

.changelog-timeline {
    max-width: 700px;
    margin: 0 auto;
    position: relative;
}

.changelog-timeline::before {
    content: "";
    position: absolute;
    left: 8px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--border-dark);
}

.timeline-item {
    display: flex;
    gap: 20px;
    margin-bottom: 28px;
    position: relative;
}

.timeline-dot {
    flex-shrink: 0;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--border-dark);
    border: 3px solid var(--border-dark);
    z-index: 1;
    margin-left: 0;
}

.timeline-dot-active {
    background: #4ADE80;
    border-color: #4ADE80;
    box-shadow: 0 0 0 4px rgba(74,222,128,0.15);
}

.timeline-content {
    flex: 1;
}

.timeline-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 4px;
}

.timeline-version {
    font-family: var(--font-display);
    font-size: 17px;
    font-weight: 700;
    color: var(--fg-light);
}

.timeline-status {
    font-size: 12px;
    font-weight: 600;
    padding: 3px 10px;
    border-radius: 100px;
}

.status-active {
    background: rgba(34,197,94,0.15);
    color: #4ADE80;
}

.status-pending {
    background: rgba(251,191,36,0.15);
    color: #FBBF24;
}

.timeline-date {
    color: var(--muted-fg-light);
    font-size: 14px;
    margin-bottom: 12px;
}

.timeline-changes {
    list-style: none;
}

.timeline-changes li {
    color: var(--muted-fg-light);
    font-size: 14px;
    padding: 4px 0;
    padding-left: 16px;
    position: relative;
}

.timeline-changes li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--accent-2);
}

.cta-section {
    padding: 40px 0;
    background: linear-gradient(135deg, #0052FF 0%, #7C3AED 50%, #EC4899 100%);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 30% 50%, rgba(255,255,255,0.1), transparent 50%);
    pointer-events: none;
}

.cta-title {
    font-family: var(--font-display);
    font-size: clamp(18px, 3vw, 28px);
    font-weight: 800;
    color: white;
    margin-bottom: 12px;
}

.cta-desc {
    font-size: 13px;
    color: rgba(255,255,255,0.85);
    margin-bottom: 32px;
}

.cta-section .btn-primary {
    background: white;
    color: var(--accent);
    box-shadow: 0 4px 14px rgba(0,0,0,0.15);
}

.cta-section .btn-primary:hover {
    background: rgba(255,255,255,0.95);
    box-shadow: 0 8px 24px rgba(0,0,0,0.2);
}

.footer {
    background: var(--bg-dark);
    color: var(--muted-fg-light);
    padding: 40px 0 24px;
}

.footer-top {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 24px;
    margin-bottom: 32px;
}

.footer-logo {
    font-size: 18px;
    font-weight: 700;
    color: var(--fg-light);
    display: block;
    margin-bottom: 12px;
}

.footer-logo .logo-accent {
    color: var(--huawei-red);
}

.footer-brand p {
    font-size: 13px;
    line-height: 1.6;
    color: var(--muted-fg-light);
}

.footer-col h5 {
    color: var(--fg-light);
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 12px;
}

.footer-col a {
    display: block;
    color: var(--muted-fg-light);
    text-decoration: none;
    font-size: 14px;
    padding: 4px 0;
    transition: color 0.2s ease-out;
}

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

.footer-bottom {
    border-top: 1px solid var(--border-dark);
    padding-top: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
}

.footer-motto {
    font-style: italic;
    color: var(--accent-2);
}

/* ===== Use Cases ===== */
.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.use-case-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 22px;
    transition: all 0.3s ease-out;
    position: relative;
    overflow: hidden;
}

.use-case-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-cool);
    opacity: 0;
    transition: opacity 0.3s ease-out;
}

.use-case-card:hover {
    border-color: var(--accent);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.use-case-card:hover::before {
    opacity: 1;
}

.use-case-icon {
    font-size: 32px;
    margin-bottom: 16px;
}

.use-case-card h3 {
    font-family: var(--font-display);
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 6px;
}

.use-case-card p {
    color: var(--muted-fg);
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 16px;
}

.use-case-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.use-case-tags span {
    font-size: 12px;
    color: var(--accent);
    background: rgba(0,82,255,0.06);
    padding: 3px 10px;
    border-radius: 100px;
    font-weight: 500;
}

/* ===== Blog Section ===== */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-bottom: 40px;
}

.blog-card {
    display: flex;
    flex-direction: column;
    background: var(--card-dark);
    border: 1px solid var(--border-dark);
    border-radius: var(--radius-lg);
    padding: 24px;
    text-decoration: none;
    transition: all 0.3s ease-out;
}

.blog-card:hover {
    border-color: var(--accent-2);
    transform: translateY(-4px);
    box-shadow: 0 10px 30px rgba(0,82,255,0.15);
}

.blog-card-tag {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    color: var(--accent-2);
    background: rgba(0,82,255,0.12);
    padding: 3px 10px;
    border-radius: 100px;
    margin-bottom: 12px;
    align-self: flex-start;
}

.blog-card h3 {
    font-family: var(--font-display);
    font-size: 16px;
    font-weight: 700;
    color: var(--fg-light);
    margin-bottom: 8px;
    line-height: 1.3;
}

.blog-card p {
    color: var(--muted-fg-light);
    font-size: 13px;
    line-height: 1.5;
    margin-bottom: 16px;
    flex: 1;
}

.blog-card-meta {
    display: flex;
    gap: 12px;
    font-size: 12px;
    color: var(--muted-fg-light);
}

.blog-cta {
    text-align: center;
}

/* ===== FAQ ===== */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 12px;
    overflow: hidden;
    transition: border-color 0.2s ease-out;
}

.faq-item[open] {
    border-color: var(--accent);
}

.faq-item summary {
    padding: 14px 20px;
    font-family: var(--font-display);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.faq-item summary::-webkit-details-marker {
    display: none;
}

.faq-item summary::after {
    content: "+";
    font-size: 20px;
    font-weight: 400;
    color: var(--accent);
    transition: transform 0.2s ease-out;
    flex-shrink: 0;
}

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

.faq-item p {
    padding: 0 20px 14px;
    color: var(--muted-fg);
    font-size: 13px;
    line-height: 1.7;
}

/* ===== Compare Table ===== */
.compare-table-wrap {
    overflow-x: auto;
    margin: 0 auto;
    max-width: 900px;
}

.compare-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
    background: var(--card);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.compare-table th,
.compare-table td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.compare-table thead th {
    background: var(--bg-dark);
    color: var(--fg-light);
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 14px;
}

.compare-table tbody tr:hover {
    background: var(--muted);
}

.compare-highlight {
    color: var(--accent);
    font-weight: 600;
    background: rgba(0,82,255,0.03);
}

.compare-table thead .compare-highlight {
    background: var(--gradient-vivid);
    color: white;
}

/* ===== Testimonials ===== */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.testimonial-card {
    background: var(--card-dark);
    border: 1px solid var(--border-dark);
    border-radius: var(--radius-lg);
    padding: 24px;
    position: relative;
    transition: all 0.3s ease-out;
}

.testimonial-card:hover {
    border-color: var(--accent-2);
    transform: translateY(-4px);
    box-shadow: 0 10px 30px rgba(0,82,255,0.15);
}

.testimonial-quote {
    font-family: var(--font-display);
    font-size: 48px;
    font-weight: 800;
    color: var(--accent-2);
    line-height: 0.5;
    margin-bottom: 12px;
    opacity: 0.4;
}

.testimonial-text {
    color: var(--muted-fg-light);
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: 20px;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 12px;
    border-top: 1px solid var(--border-dark);
    padding-top: 16px;
}

.testimonial-avatar {
    font-size: 32px;
}

.testimonial-name {
    font-family: var(--font-display);
    font-size: 14px;
    font-weight: 700;
    color: var(--fg-light);
}

.testimonial-role {
    font-size: 12px;
    color: var(--muted-fg-light);
    margin-top: 2px;
}

.fade-in {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.7s cubic-bezier(0.16,1,0.3,1), transform 0.7s cubic-bezier(0.16,1,0.3,1);
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

@media (max-width: 968px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .hero-visual {
        order: -1;
    }

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

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

    .screenshots-grid {
        grid-template-columns: repeat(2, 1fr);
        grid-auto-rows: 180px;
    }

    .screenshots-grid-mobile {
        grid-template-columns: repeat(3, 1fr);
        grid-auto-rows: 240px;
    }

    .screenshot-large {
        grid-column: span 2;
        grid-row: span 1;
    }

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

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

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

    .tutorial-steps {
        grid-template-columns: 1fr;
    }

    .footer-top {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }

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

@media (max-width: 640px) {
    .section {
        padding: 36px 0;
    }

    .nav-links {
        display: none;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-cta {
        display: none;
    }

    .nav-links.open {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--bg);
        border-bottom: 1px solid var(--border);
        padding: 16px 24px;
        gap: 16px;
    }

    .hero {
        padding: 100px 0 64px;
    }

    .hero-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

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

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

    .screenshots-grid {
        grid-template-columns: 1fr;
        grid-auto-rows: 200px;
    }

    .screenshots-grid-mobile {
        grid-template-columns: repeat(2, 1fr);
        grid-auto-rows: 220px;
    }

    .screenshot-large {
        grid-column: span 1;
    }

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

    .use-cases-grid {
        grid-template-columns: 1fr;
    }

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

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

    .footer-bottom {
        flex-direction: column;
        gap: 8px;
        text-align: center;
    }

    .container {
        padding: 0 16px;
    }

    .hero-container {
        padding: 0 16px;
    }
}