@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

body {
    font-family: 'Inter', 'SF Pro Display', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: #F5F5F7;
    color: #1D1D1F;
    line-height: 1.5;
}

.section {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.section.visible {
    opacity: 1;
    transform: translateY(0);
}

.highlight {
    color: #007AFF;
}

.card {
    border-radius: 12px;
    background-color: #FFFFFF;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.table-container {
    overflow-x: auto;
    margin: 2rem 0;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th {
    background-color: #F5F5F7;
    padding: 1rem;
    text-align: left;
    font-weight: 600;
}

td {
    padding: 1rem;
    border-bottom: 1px solid #EFEFEF;
}

.progress-bar {
    height: 2px;
    background-color: #007AFF;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 100;
}

.navigation-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: #CCCCCC;
    margin: 10px 0;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.3s ease;
}

.navigation-dot.active {
    background-color: #007AFF;
    transform: scale(1.2);
}

.hero-gradient {
    background: linear-gradient(135deg, rgba(255,255,255,1) 0%, rgba(240,240,244,1) 100%);
}

.btn-primary {
    background-color: #007AFF;
    color: white;
    font-weight: 500;
    padding: 0.75rem 1.5rem;
    border-radius: 9999px;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    background-color: #0056b3;
    transform: translateY(-2px);
}

.chip {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.875rem;
    margin-right: 0.5rem;
}

.chip-blue {
    background-color: rgba(0, 122, 255, 0.1);
    color: #007AFF;
}

.chip-gray {
    background-color: rgba(0, 0, 0, 0.05);
    color: #666666;
}

.feature-icon {
    width: 3rem;
    height: 3rem;
    border-radius: 0.75rem;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: rgba(0, 122, 255, 0.1);
    color: #007AFF;
    margin-bottom: 1.25rem;
}

.quote-card {
    border-left: 4px solid #007AFF;
    padding-left: 1.5rem;
}

.gradient-text {
    background: linear-gradient(90deg, #007AFF, #00C6FF);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    display: inline;
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: #F5F5F7;
}

::-webkit-scrollbar-thumb {
    background-color: #BBBBBB;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background-color: #999999;
}

.comparison-table th:first-child,
.comparison-table td:first-child {
    font-weight: 500;
}

.stat-card {
    text-align: center;
    padding: 2rem;
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 0.5rem;
    color: #007AFF;
}

.stat-label {
    font-size: 1rem;
    color: #666;
}

.divider {
    height: 1px;
    background: linear-gradient(to right, transparent, rgba(0, 0, 0, 0.1), transparent);
    margin: 3rem 0;
}

.footer {
    font-size: 0.875rem;
    color: #888;
}