/* Newly designed homepage styles - English and Chinese mixed support */

/* SVG Definitions for Gradients */
.meter-svg defs {
    display: none;
}

.meter-svg {
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg"><defs><linearGradient id="meterGradient" x1="0%" y1="0%" x2="100%" y2="0%"><stop offset="0%" style="stop-color:%234F46E5;stop-opacity:1" /><stop offset="50%" style="stop-color:%237C3AED;stop-opacity:1" /><stop offset="100%" style="stop-color:%2306B6D4;stop-opacity:1" /></linearGradient></defs></svg>') no-repeat;
}

/* Banner Section */
.banner {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--text-white);
    padding: var(--spacing-2xl) 0;
    text-align: center;
}

.banner-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.banner-description {
    font-size: var(--font-size-lg);
    max-width: 800px;
    margin: 0 auto;
    opacity: 0.9;
}

/* Hero Section */
.hero {
    min-height: calc(100vh - 70px);
    /* Account for fixed header */
    background: linear-gradient(135deg,
            rgba(79, 70, 229, 0.95) 0%,
            rgba(124, 58, 237, 0.95) 50%,
            rgba(219, 39, 119, 0.95) 100%),
        url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 1000"><defs><pattern id="grid" width="50" height="50" patternUnits="userSpaceOnUse"><path d="M 50 0 L 0 0 0 50" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="1"/></pattern></defs><rect width="100%" height="100%" fill="url(%23grid)"/></svg>');
    background-size: cover;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 80%, rgba(120, 119, 198, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255, 119, 198, 0.3) 0%, transparent 50%);
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="hero-dots" width="10" height="10" patternUnits="userSpaceOnUse"><circle cx="5" cy="5" r="1" fill="rgba(255,255,255,0.1)"/></pattern></defs><rect width="100%" height="100%" fill="url(%23hero-dots)"/></svg>');
    animation: floatPattern 20s linear infinite;
    pointer-events: none;
}

@keyframes floatPattern {
    0% {
        transform: translateX(0) translateY(0);
    }

    25% {
        transform: translateX(-10px) translateY(-5px);
    }

    50% {
        transform: translateX(-20px) translateY(0);
    }

    75% {
        transform: translateX(-10px) translateY(5px);
    }

    100% {
        transform: translateX(0) translateY(0);
    }
}

.hero-container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-4xl);
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content {
    color: var(--text-white);
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-full);
    border: 1px solid rgba(255, 255, 255, 0.2);
    font-size: var(--font-size-sm);
    font-weight: 500;
    margin-bottom: var(--spacing-xl);
    animation: fadeInUp 0.8s ease-out;
}

.hero-title {
    font-size: clamp(var(--font-size-3xl), 4vw, var(--font-size-5xl));
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: var(--spacing-xl);
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.gradient-text {
    background: linear-gradient(135deg, #60A5FA, #C084FC, #F472B6);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-size: 200% 200%;
    animation: gradientShift 3s ease infinite;
}

@keyframes gradientShift {

    0%,
    100% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-description {
    font-size: var(--font-size-base);
    line-height: 1.6;
    margin-bottom: var(--spacing-2xl);
    color: rgba(255, 255, 255, 0.9);
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
    animation: fadeInUp 0.8s ease-out 0.6s both;
}

.hero-buttons .btn-primary {
    position: relative;
    overflow: hidden;
}

.hero-buttons .btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.hero-buttons .btn-primary:hover::before {
    left: 100%;
}

.hero-stats {
    display: flex;
    gap: var(--spacing-2xl);
    animation: fadeInUp 0.8s ease-out 0.8s both;
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.stat-number {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: #60A5FA;
    margin-bottom: var(--spacing-xs);
    text-shadow: 0 0 10px rgba(96, 165, 250, 0.3);
    animation: glow 2s ease-in-out infinite alternate;
}

@keyframes glow {
    from {
        text-shadow: 0 0 10px rgba(96, 165, 250, 0.3);
    }

    to {
        text-shadow: 0 0 20px rgba(96, 165, 250, 0.6), 0 0 30px rgba(96, 165, 250, 0.4);
    }
}

.stat-label {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: rgba(255, 255, 255, 0.9);
}

/* Tools Preview Grid */
.tools-preview-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    max-width: 600px;
    animation: fadeInRight 1s ease-out 0.5s both;
}

.tool-preview-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.3);
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.tool-preview-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.25);
}

.tool-preview-card:hover .tool-title {
    color: var(--primary-color);
}

.tool-preview-card:hover .tool-desc {
    color: var(--text-primary);
}

.tool-preview-card.featured {
    border: 2px solid var(--primary-color);
}

.tool-preview-card.featured::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: var(--gradient-tech);
    border-radius: var(--radius-xl);
    z-index: -1;
    opacity: 0.8;
    animation: borderGlow 3s ease-in-out infinite alternate;
}

@keyframes borderGlow {
    from {
        opacity: 0.8;
    }

    to {
        opacity: 1;
    }
}

.tool-preview-card .tool-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--gradient-tech);
    border-radius: var(--radius-lg);
    color: white;
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-md);
}

.tool-preview-card .tool-title {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.3;
}

.tool-preview-card .tool-desc {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.4;
    margin-bottom: var(--spacing-md);
}

.tool-preview-card .tool-action {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--primary-color);
    font-size: var(--font-size-sm);
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition-fast);
}

.tool-preview-card .tool-action:hover {
    color: var(--primary-dark);
    gap: var(--spacing-sm);
}

.tool-preview-card .tool-action i {
    font-size: var(--font-size-xs);
    transition: var(--transition-fast);
}

/* Tool Preview Card Animations */
.tool-preview-card:nth-child(1) {
    animation: fadeInUp 0.8s ease-out 0.6s both;
}

.tool-preview-card:nth-child(2) {
    animation: fadeInUp 0.8s ease-out 0.8s both;
}

.tool-preview-card:nth-child(3) {
    animation: fadeInUp 0.8s ease-out 1.0s both;
}

.tool-preview-card:nth-child(4) {
    animation: fadeInUp 0.8s ease-out 1.2s both;
}

/* Hover effects for tool icons */
.tool-preview-card:hover .tool-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 5px 15px rgba(79, 70, 229, 0.3);
}

.tool-preview-card .tool-icon {
    transition: all var(--transition-normal);
}

/* Hero Visual */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    animation: fadeInRight 1s ease-out 0.5s both;
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Dashboard Preview */
.dashboard-preview {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-xl);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.25);
    border: 1px solid rgba(255, 255, 255, 0.3);
    width: 100%;
    max-width: 500px;
    position: relative;
    overflow: hidden;
}

.dashboard-preview::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-tech);
}

.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--border-light);
}

.dashboard-title {
    font-weight: 600;
    color: var(--text-primary);
    font-size: var(--font-size-sm);
}

.dashboard-status {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-xs);
    color: var(--success-color);
    font-weight: 500;
}

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

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

.conversion-demo {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: var(--spacing-md);
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.demo-input,
.demo-output {
    text-align: center;
}

.demo-input label,
.demo-output label {
    display: block;
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
}

.input-group,
.output-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    align-items: center;
}

.input-group input {
    background: var(--bg-secondary);
    border: 2px solid var(--border-light);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm);
    font-size: var(--font-size-base);
    font-weight: 600;
    text-align: center;
    color: var(--text-primary);
    width: 80px;
}

.input-group select {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    background: var(--bg-tertiary);
    padding: var(--spacing-xs);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-light);
}

.result {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--primary-color);
}

.unit {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    font-weight: 500;
}

.demo-arrow {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    background: var(--gradient-tech);
    border-radius: 50%;
    color: white;
    font-size: var(--font-size-sm);
    animation: bounce 2s infinite;
}

@keyframes bounce {

    0%,
    20%,
    50%,
    80%,
    100% {
        transform: translateY(0);
    }

    40% {
        transform: translateY(-5px);
    }

    60% {
        transform: translateY(-2px);
    }
}

.quick-tools {
    display: flex;
    gap: var(--spacing-xs);
    justify-content: center;
}

.quick-tool {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--bg-secondary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 10px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-normal);
}

.quick-tool i {
    font-size: var(--font-size-sm);
}

.quick-tool.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.quick-tool:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

/* Section Badges */
.section-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 500;
    margin-bottom: var(--spacing-lg);
}

/* Core Features Section */
.core-features {
    padding: var(--spacing-5xl) 0;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
    line-height: 1.3;
}

.section-subtitle {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.6;
}

.features-showcase {
    margin-top: var(--spacing-3xl);
}

.feature-main {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
    margin-bottom: var(--spacing-4xl);
    padding: var(--spacing-2xl);
    background: var(--bg-card);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-lg);
}

.feature-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.accuracy-meter {
    text-align: center;
}

.meter-circle {
    position: relative;
    width: 200px;
    height: 200px;
    margin: 0 auto var(--spacing-lg);
    border-radius: 50%;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(37, 99, 235, 0.3);
    transition: var(--transition-normal);
}

.meter-circle:hover {
    transform: scale(1.05);
    box-shadow: 0 15px 40px rgba(37, 99, 235, 0.4);
}

.meter-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
}

.meter-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: white;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.meter-text {
    display: block;
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.meter-subtitle {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 500;
    opacity: 0.9;
}

.meter-svg {
    width: 100%;
    height: 100%;
    transform: rotate(-90deg);
}

.meter-bg {
    fill: none;
    stroke: var(--border-light);
    stroke-width: 2;
}

.meter-fill {
    fill: none;
    stroke: url(#meterGradient);
    stroke-width: 3;
    stroke-linecap: round;
    animation: fillMeter 2s ease-out;
}

@keyframes fillMeter {
    from {
        stroke-dasharray: 0, 100;
    }

    to {
        stroke-dasharray: 99.9, 100;
    }
}

.meter-text {
    font-size: 24px;
    font-weight: 700;
    fill: var(--primary-color);
    text-anchor: middle;
    dominant-baseline: middle;
    transform: rotate(90deg);
}

.meter-label {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
}

.feature-content {
    padding: var(--spacing-lg);
}

.feature-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
}

.feature-description {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-xl);
}

.feature-points {
    list-style: none;
    padding: 0;
}

.feature-points li {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

.feature-points i {
    color: var(--success-color);
    font-size: var(--font-size-lg);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
}

.feature-card {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

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

.feature-card.highlight {
    border: 2px solid var(--primary-color);
}

.feature-card.highlight::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-tech);
}

.feature-icon {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    color: var(--primary-color);
    font-size: var(--font-size-xl);
    margin: 0 auto var(--spacing-lg);
}

.icon-glow {
    position: absolute;
    top: -5px;
    right: -5px;
    width: 15px;
    height: 15px;
    background: var(--accent-color);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

.feature-card .feature-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.feature-desc {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.5;
}

.feature-metric {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-light);
}

.metric-value {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--primary-color);
}

.metric-label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

/* User Cases Section */
.user-cases {
    padding: var(--spacing-5xl) 0;
    background: var(--bg-secondary);
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-2xl);
    margin-top: var(--spacing-3xl);
}

.case-card {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
}

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

.case-icon {
    font-size: var(--font-size-3xl);
    color: var(--primary-color);
    margin-bottom: var(--spacing-lg);
}

.case-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.case-description {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

.case-stats {
    display: flex;
    gap: var(--spacing-xl);
    border-top: 1px solid var(--border-light);
    padding-top: var(--spacing-lg);
}

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

.stat-value {
    display: block;
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--primary-color);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: #fff;
}

/* Featured Blog Card */
.blog-card.featured {
    position: relative;
    border: 2px solid var(--primary-color);
}

.featured-badge {
    position: absolute;
    top: -10px;
    right: -10px;
    background: var(--error-color);
    color: white;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    font-weight: 600;
    transform: rotate(15deg);
}

/* Tools Showcase Section */
.tools-showcase {
    padding: var(--spacing-5xl) 0;
    background: #F8F4FF;
    position: relative;
    overflow: hidden;
}

.tools-showcase::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="tools-pattern" width="20" height="20" patternUnits="userSpaceOnUse"><circle cx="10" cy="10" r="1" fill="rgba(37, 99, 235, 0.05)"/></pattern></defs><rect width="100%" height="100%" fill="url(%23tools-pattern)"/></svg>');
    pointer-events: none;
}

.tools-main-layout {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-4xl);
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
}

.tools-intro {
    padding: var(--spacing-2xl);
}

.tools-main-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xl);
    line-height: 1.2;
}

.tools-main-desc {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-2xl);
}

.tools-main-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-lg) var(--spacing-2xl);
    background: linear-gradient(135deg, #FF6B6B, #FF8E53);
    color: white;
    border-radius: var(--radius-lg);
    font-size: var(--font-size-base);
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition-normal);
    box-shadow: 0 4px 15px rgba(255, 107, 107, 0.3);
}

.tools-main-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(255, 107, 107, 0.4);
    color: white;
}

.tools-main-btn i {
    transition: var(--transition-fast);
}

.tools-main-btn:hover i {
    transform: translateX(3px);
}

.tools-grid-container {
    padding: var(--spacing-xl);
}

.main-tools-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
}

.main-tool-card {
    background: var(--bg-card);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
    border: 1px solid var(--border-light);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
}

.main-tool-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
    pointer-events: none;
    opacity: 0;
    transition: var(--transition-normal);
}

.main-tool-card:hover::after {
    opacity: 1;
}

.main-tool-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.main-tool-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-tech);
    transform: scaleX(0);
    transition: var(--transition-normal);
}

.main-tool-card:hover::before {
    transform: scaleX(1);
}

.main-tool-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    border-radius: var(--radius-xl);
    color: white;
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-lg);
    transition: var(--transition-normal);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.main-tool-card:hover .main-tool-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

/* Individual tool icon colors */
.main-tool-card:nth-child(1) .main-tool-icon {
    background: linear-gradient(135deg, #FF6B6B, #FF8E53);
}

.main-tool-card:nth-child(2) .main-tool-icon {
    background: linear-gradient(135deg, #4ECDC4, #44A08D);
}

.main-tool-card:nth-child(3) .main-tool-icon {
    background: linear-gradient(135deg, #A8E6CF, #7FCDCD);
}

.main-tool-card:nth-child(4) .main-tool-icon {
    background: linear-gradient(135deg, #FFD93D, #FF6B6B);
}

.main-tool-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.3;
}

.main-tool-desc {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: var(--spacing-lg);
}

.main-tool-action {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: #FF6B6B;
    font-size: var(--font-size-sm);
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition-fast);
}

.main-tool-action:hover {
    color: #FF5252;
    gap: var(--spacing-sm);
}

.main-tool-action i {
    font-size: var(--font-size-xs);
    transition: var(--transition-fast);
}

/* Main Tool Card Animations */
.main-tool-card:nth-child(1) {
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.main-tool-card:nth-child(2) {
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

.main-tool-card:nth-child(3) {
    animation: fadeInUp 0.8s ease-out 0.6s both;
}

.main-tool-card:nth-child(4) {
    animation: fadeInUp 0.8s ease-out 0.8s both;
}

/* Tools intro animation */
.tools-intro {
    animation: fadeInLeft 1s ease-out 0.3s both;
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.tools-grid-container {
    animation: fadeInRight 1s ease-out 0.5s both;
}

.tool-category {
    margin-bottom: var(--spacing-4xl);
}

.category-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
    padding: var(--spacing-xl);
    background: var(--bg-card);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-md);
}

.category-icon {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    border-radius: var(--radius-xl);
    background: var(--gradient-tech);
    color: white;
    font-size: var(--font-size-2xl);
}

.icon-bg {
    position: absolute;
    top: -10px;
    right: -10px;
    width: 20px;
    height: 20px;
    background: var(--accent-color);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

.category-info {
    flex: 1;
}

.category-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.category-desc {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.category-stats {
    display: flex;
    gap: var(--spacing-lg);
}

.stat-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);

}

.stat-item i {
    color: var(--accent-color);
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.tool-item {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.tool-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.tool-item.featured {
    border: 2px solid var(--primary-color);
}

.tool-icon {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    color: var(--primary-color);
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-lg);
}

.tool-name {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.tool-desc {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

.tool-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-light);
}

.accuracy,
.usage {
    font-size: var(--font-size-xs);
    font-weight: 500;
}

.accuracy {
    color: var(--success-color);
}

.usage {
    color: var(--text-secondary);
}

.category-action {
    text-align: center;
}

.view-all-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    background: var(--gradient-tech);
    color: white;
    border-radius: var(--radius-lg);
    font-weight: 500;
    transition: var(--transition-normal);
}

.view-all-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    color: white;
}

/* English and Chinese mixed text optimization */
.hero-title,
.section-title,
.dashboard-title,
.hero-badge span,
.section-badge span,
.feature-item span {
    font-family: 'Inter', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    letter-spacing: -0.02em;
}

/* Demo Section */
.demo-section {
    padding: var(--spacing-5xl) 0;
    background: var(--bg-secondary);
}

.demo-container {
    max-width: 1000px;
    margin: 0 auto;
}

.demo-tabs {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-2xl);
}

.demo-tab {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    background: var(--bg-card);
    border: 2px solid var(--border-light);
    border-radius: var(--radius-lg);
    color: var(--text-secondary);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-normal);
}

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

.demo-tab:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.demo-tab.active:hover {
    color: white;
}

.demo-content {
    position: relative;
}

.demo-panel {
    display: none;
}

.demo-panel.active {
    display: block;
}

.demo-tool {
    background: var(--bg-card);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-lg);
}

.tool-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--border-light);
}

.tool-header h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
}

.tool-status {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-sm);
    color: var(--success-color);
    font-weight: 500;
}

.tool-status::before {
    content: '';
    width: 8px;
    height: 8px;
    background: var(--success-color);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

.conversion-interface {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: var(--spacing-xl);
    align-items: center;
    margin-bottom: var(--spacing-xl);
}

.input-section,
.output-section {
    text-align: center;
}

.input-section label,
.output-section label {
    display: block;
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    font-weight: 500;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    align-items: center;
}

.demo-input {
    background: var(--bg-secondary);
    border: 2px solid var(--border-light);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    font-size: var(--font-size-lg);
    font-weight: 600;
    text-align: center;
    color: var(--text-primary);
    width: 120px;
}

.unit-select {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    background: var(--bg-tertiary);
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-light);
}

.conversion-arrow {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--gradient-tech);
    border-radius: 50%;
    color: white;
    font-size: var(--font-size-lg);
    animation: bounce 2s infinite;
}

.output-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    align-items: center;
}

.result-value {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--primary-color);
}

.conversion-info {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
}

.info-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.info-item i {
    color: var(--primary-color);
}

.timezone-interface {
    display: grid;
    gap: var(--spacing-lg);
}

.timezone-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
}

.timezone-info h4 {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.timezone-code {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.time-display {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--primary-color);
    font-family: 'Courier New', monospace;
}

.demo-actions {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-2xl);
}

.demo-refresh {
    background: var(--bg-card);
    color: var(--text-primary);
    border: 2px solid var(--border-medium);
}

.demo-refresh:hover {
    background: var(--bg-secondary);
    border-color: var(--primary-color);
    color: var(--primary-color);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--spacing-2xl);
        display: flex;
        flex-wrap: wrap;
        padding: 10px 0 0;
        flex-direction: column-reverse;
    }

    .hero-visual {
        order: -1;
    }

    .tools-preview-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin: 0 auto;
    }

    .tools-main-layout {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
        text-align: center;
    }

    .tools-intro {
        order: 1;
    }

    .tools-grid-container {
        order: 2;
    }

    .main-tools-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .demo-tabs {
        flex-direction: column;
        align-items: center;
    }

    .conversion-interface {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .conversion-arrow {
        transform: rotate(90deg);
    }
}

/* Blog Preview Section */
.blog-preview {
    padding: var(--spacing-5xl) 0;
    background: var(--bg-primary);
}

.blog-layout {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-3xl);
    margin-top: var(--spacing-3xl);
}

/* Featured Article */
.blog-featured {
    background: var(--bg-card);
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    transition: var(--transition-normal);
    position: relative;
}

.blog-featured:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
}

.featured-image {
    position: relative;
    height: 300px;
    overflow: hidden;
}

.featured-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.blog-featured:hover .featured-image img {
    transform: scale(1.05);
}

.featured-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0.1) 0%, rgba(0, 0, 0, 0.7) 100%);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: var(--spacing-lg);
}

.featured-badge {
    align-self: flex-start;
    background: var(--gradient-tech);
    color: white;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.featured-meta {
    display: flex;
    gap: var(--spacing-md);
    align-self: flex-end;
}

.featured-date,
.featured-category {
    color: white;
    font-size: var(--font-size-sm);
    font-weight: 500;
    background: rgba(255, 255, 255, 0.2);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-md);
    backdrop-filter: blur(10px);
}

.featured-content {
    padding: var(--spacing-2xl);
}

.featured-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.3;
}

.featured-excerpt {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-xl);
    font-size: var(--font-size-base);
}

.featured-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--primary-color);
    font-weight: 600;
    font-size: var(--font-size-base);
    transition: var(--transition-fast);
}

.featured-link:hover {
    color: var(--primary-dark);
    gap: var(--spacing-md);
}

.featured-link i {
    transition: var(--transition-fast);
}

/* Blog List */
.blog-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.blog-item {
    display: flex;
    gap: var(--spacing-lg);
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
    border: 1px solid var(--border-light);
}

.blog-item:hover {
    transform: translateX(5px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-color);
}

.blog-item-image {
    flex-shrink: 0;
    width: 120px;
    height: 80px;
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.blog-item-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-normal);
}

.blog-item:hover .blog-item-image img {
    transform: scale(1.1);
}

.blog-item-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.blog-item-meta {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xs);
}

.blog-item-date,
.blog-item-category {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    font-weight: 500;
}

.blog-item-category {
    color: var(--primary-color);
}

.blog-item-title {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    line-height: 1.4;
}

.blog-item-excerpt {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: var(--spacing-sm);
}

.blog-item-link {
    color: var(--primary-color);
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: var(--transition-fast);
    align-self: flex-start;
}

.blog-item-link:hover {
    color: var(--primary-dark);
}

.blog-action {
    text-align: center;
    margin-top: var(--spacing-3xl);
}

/* Testimonials Section */
.testimonials {
    padding: var(--spacing-5xl) 0;
    background: var(--bg-secondary);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-2xl);
    margin-top: var(--spacing-3xl);
}

.testimonial-card {
    background: var(--bg-card);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
    position: relative;
}

.testimonial-card::before {
    content: '"';
    position: absolute;
    top: -10px;
    left: var(--spacing-xl);
    font-size: 4rem;
    color: var(--primary-color);
    font-family: serif;
    line-height: 1;
}

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

.testimonial-content {
    margin-bottom: var(--spacing-xl);
}

.testimonial-content p {
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-primary);
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.author-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
}

.author-name {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.author-title {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin: 0;
}

/* CTA Section */
.cta {
    padding: var(--spacing-5xl) 0;
    background: var(--gradient-tech);
    color: white;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="cta-pattern" width="20" height="20" patternUnits="userSpaceOnUse"><circle cx="10" cy="10" r="1" fill="rgba(255,255,255,0.1)"/></pattern></defs><rect width="100%" height="100%" fill="url(%23cta-pattern)"/></svg>');
    animation: patternFloat 20s linear infinite;
}

@keyframes patternFloat {
    0% {
        transform: translateX(0) translateY(0);
    }

    25% {
        transform: translateX(-20px) translateY(-10px);
    }

    50% {
        transform: translateX(-40px) translateY(0);
    }

    75% {
        transform: translateX(-20px) translateY(10px);
    }

    100% {
        transform: translateX(0) translateY(0);
    }
}

.cta-content {
    position: relative;
    z-index: 1;
}

.cta-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    color: white;
}

.cta-description {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-2xl);
    color: rgba(255, 255, 255, 0.9);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta .btn-primary {
    background: white;
    color: var(--primary-color);
    font-size: var(--font-size-lg);
    padding: 1.25rem 2.5rem;
    box-shadow: var(--shadow-xl);
}

.cta .btn-primary:hover {
    background: var(--bg-secondary);
    color: var(--primary-color);
    transform: translateY(-3px);
    box-shadow: var(--shadow-2xl);
}

@media (max-width: 768px) {
    .hero {
        min-height: auto;
        padding: var(--spacing-3xl) 0;
        margin-top: 20px;
    }

    .hero-stats {

        gap: var(--spacing-md);
        align-items: center;
        justify-content: center;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .tools-preview-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .tools-main-layout {
        gap: var(--spacing-xl);
    }

    .tools-intro {
        padding: var(--spacing-lg);
    }

    .tools-main-title {
        font-size: var(--font-size-3xl);
    }

    .main-tools-grid {
        gap: var(--spacing-md);
    }

    .conversion-demo {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }

    .demo-arrow {
        transform: rotate(90deg);
        order: 2;
    }

    .demo-output {
        order: 3;
    }

    .blog-layout {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }

    .blog-list {
        gap: var(--spacing-lg);
    }

    .blog-item {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .blog-item-image {
        width: 100%;
        height: 150px;
    }

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

    .demo-tabs {
        flex-wrap: wrap;
    }

    .conversion-info {
        flex-direction: column;
        gap: var(--spacing-sm);
        text-align: center;
    }

    .cta-title {
        font-size: var(--font-size-3xl);
    }

    .cta-description {
        font-size: var(--font-size-base);
    }

    .feature-main {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
        text-align: center;
    }

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

    .meter-circle {
        width: 150px;
        height: 150px;
    }

    .meter-text {
        font-size: var(--font-size-xl);
    }

    .meter-subtitle {
        font-size: var(--font-size-xs);
    }
}

@media (max-width: 480px) {
    .dashboard-preview {
        padding: var(--spacing-lg);
        max-width: 320px;
    }

    .hero-title {
        font-size: var(--font-size-2xl);
    }

    .hero-description {
        font-size: var(--font-size-sm);
    }

    .quick-tools {
        gap: 2px;
    }

    .quick-tool {
        padding: 4px 6px;
        font-size: 8px;
    }

    .demo-tabs {
        gap: var(--spacing-sm);
    }

    .demo-tab {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: var(--font-size-sm);
    }

    .conversion-interface {
        gap: var(--spacing-md);
    }

    .demo-input {
        width: 100px;
        font-size: var(--font-size-base);
    }

    .result-value {
        font-size: var(--font-size-xl);
    }

    .cta .btn-primary {
        padding: 1rem 2rem;
        font-size: var(--font-size-base);
    }

    .meter-circle {
        width: 120px;
        height: 120px;
    }

    .meter-text {
        font-size: 16px;
    }

    .feature-main {
        padding: var(--spacing-lg);
    }

    .testimonial-card {
        padding: var(--spacing-lg);
    }

    .featured-image {
        height: 200px;
    }

    .featured-content {
        padding: var(--spacing-lg);
    }

    .featured-title {
        font-size: var(--font-size-xl);
    }

    .blog-item {
        padding: var(--spacing-md);
    }

    .blog-item-image {
        height: 120px;
    }

    .tool-preview-card {
        padding: var(--spacing-md);
    }

    .tool-preview-card .tool-title {
        font-size: var(--font-size-sm);
    }

    .tool-preview-card .tool-desc {
        font-size: var(--font-size-xs);
    }

    .stat-number {
        font-size: var(--font-size-xl);
    }

    .stat-label {
        font-size: var(--font-size-xs);
    }

    .hero-content {
        padding: 0 10px;
        line-height: 30px;
      
    }

    .hero-buttons .btn-primary {
        width: 70%;
        justify-content: center;
          font-size: 16px;
    }

    .tools-preview-grid {
        gap: var(--spacing-sm);
    }

    .tools-main-title {
        font-size: var(--font-size-2xl);
    }

    .tools-main-desc {
        font-size: var(--font-size-base);
    }

    .tools-main-btn {
        padding: var(--spacing-md) var(--spacing-xl);
        font-size: var(--font-size-sm);
    }

    .main-tool-card {
        padding: var(--spacing-lg);
    }

    .main-tool-title {
        font-size: var(--font-size-base);
    }

    .main-tool-desc {
        font-size: var(--font-size-xs);
    }

    .tools-grid-container {
        padding: var(--spacing-md);
    }
}

/* Accessibility improvements */
@media (prefers-reduced-motion: reduce) {

    .tool-preview-card,
    .stat-number,
    .hero-buttons .btn-primary::before,
    .tool-preview-card .tool-icon,
    .main-tool-card,
    .main-tool-icon,
    .tools-intro,
    .tools-grid-container {
        animation: none !important;
        transition: none !important;
    }

    .hero::after {
        animation: none !important;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {

    .tool-preview-card,
    .main-tool-card {
        border: 2px solid var(--text-primary);
    }

    .tool-preview-card .tool-title,
    .tool-preview-card .tool-desc,
    .main-tool-title,
    .main-tool-desc {
        color: var(--text-primary);
    }

    .tools-main-title {
        color: var(--text-primary);
    }

    .main-tool-action {
        color: var(--text-primary);
        font-weight: 700;
    }
}

@media (max-width: 480px) {
    .dashboard-preview {
        padding: var(--spacing-lg);
        max-width: 320px;
    }

    .hero-title {
        font-size: var(--font-size-2xl);
    }

    .hero-description {
        font-size: var(--font-size-sm);
    }

    .quick-tools {
        gap: 2px;
    }

    .quick-tool {
        padding: 4px 6px;
        font-size: 8px;
    }
}