/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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-color: #f8fafc;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    width: 100%;
    box-sizing: border-box;
}

/* 功能详情页面使用全宽度容器 */
.feature-details .container,
.page-header .container {
    max-width: none;
    padding: 0 20px;
    margin: 0;
}

/* 确保功能详情页面容器更宽 */
.feature-details .container {
    max-width: 1400px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 1rem;
}

h1 {
    font-size: 2.5rem;
    color: #1e293b;
}

h2 {
    font-size: 2rem;
    color: #1e293b;
    text-align: center;
    margin-bottom: 1.5rem;
}

h3 {
    font-size: 1.5rem;
    color: #334155;
}

p {
    margin-bottom: 1rem;
    color: #64748b;
}

.section-subtitle {
    text-align: center;
    font-size: 1.1rem;
    color: #64748b;
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Buttons */
.btn-primary, .btn-secondary {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background: linear-gradient(135deg, #3b82f6, #1d4ed8);
    color: white;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #2563eb, #1e40af);
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(59, 130, 246, 0.3);
}

.btn-secondary {
    background: white;
    color: #3b82f6;
    border: 2px solid #3b82f6;
}

.btn-secondary:hover {
    background: #3b82f6;
    color: white;
    transform: translateY(-2px);
}

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

/* Header */
.header {
    background: #1e293b !important;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

.navbar {
    padding: 1rem 0;
    background: #1e293b !important;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #1e293b !important;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 700;
    color: white !important;
}

.logo a {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: inherit;
    transition: opacity 0.3s ease;
}

.logo a:hover {
    opacity: 0.8;
}

.logo img {
    border-radius: 8px;
    width: 5rem;
    height: 5rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
    background: #1e293b !important;
}

.nav-link {
    text-decoration: none;
    color: #cbd5e1 !important;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
    color: white !important;
}

.nav-link.btn-primary {
    color: white !important;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: #64748b;
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    padding: 110px 0 30px;
    background: linear-gradient(180deg, #AAD3FF 0%, #FFFFFF 90%, #AAD3FF 180%);
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3.5rem;
    align-items: center;
}

.hero-content h1 {
    margin-top: 0.25rem;
    margin-bottom: 1.25rem;
    color: #1e293b;
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    color: #64748b;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.hero-image img {
    width: 100%;
    height: 380px;
    object-fit: contain;
    /* border-radius: 16px; */
    /* box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1); */
}

/* Version Badge */
.version-badge {
    display: inline-flex;
    align-items: center;
    gap: 1rem;
    background: rgba(59, 130, 246, 0.1);
    padding: 0.75rem 1.5rem;
    border-radius: 25px;
    margin-bottom: 1.5rem;
}

.version-number {
    background: #3b82f6;
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-weight: 700;
    font-size: 1.1rem;
}

.release-date {
    color: #64748b;
    font-weight: 500;
}

/* Hero Stats */
.hero-stats {
    display: flex;
    gap: 2rem;
    margin-top: 2rem;
}

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

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: #3b82f6;
}

.stat-label {
    color: #64748b;
    font-size: 0.9rem;
}

/* Features Overview */
.features-overview {
    padding: 80px 0;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}

.features-overview h2 {
    text-align: center;
    margin-bottom: 1rem;
    color: #1e293b;
    font-size: 2.5rem;
    font-weight: 700;
}

.section-subtitle {
    text-align: center;
    margin-bottom: 3rem;
    color: #64748b;
    font-size: 1.1rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature-card {
    background: white;
    border-radius: 20px;
    padding: 2.5rem 2rem;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #3b82f6, #8b5cf6, #06b6d4);
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

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

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.2);
}

.feature-icon {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    display: block;
    text-align: center;
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.1));
}

.feature-card h3 {
    margin-bottom: 1rem;
    color: #1e293b;
    font-size: 1.4rem;
    font-weight: 700;
    text-align: center;
}

.feature-card p {
    margin-bottom: 2rem;
    color: #64748b;
    font-size: 1rem;
    line-height: 1.6;
    text-align: center;
}

.feature-link {
    display: inline-block;
    width: 100%;
    padding: 1rem 1.5rem;
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    color: white;
    text-decoration: none;
    font-weight: 600;
    border-radius: 12px;
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
    position: relative;
    overflow: hidden;
}

.feature-link::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 ease;
}

.feature-link:hover::before {
    left: 100%;
}

.feature-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.4);
    background: linear-gradient(135deg, #1d4ed8 0%, #1e40af 100%);
}

/* 为每个功能卡片添加独特的主题色彩 */
.feature-card:nth-child(1) .feature-icon {
    background: linear-gradient(135deg, #3b82f6, #1d4ed8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.feature-card:nth-child(2) .feature-icon {
    background: linear-gradient(135deg, #8b5cf6, #7c3aed);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.feature-card:nth-child(3) .feature-icon {
    background: linear-gradient(135deg, #06b6d4, #0891b2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.feature-card:nth-child(4) .feature-icon {
    background: linear-gradient(135deg, #10b981, #059669);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.feature-card:nth-child(5) .feature-icon {
    background: linear-gradient(135deg, #f59e0b, #d97706);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Version Comparison */
.version-comparison {
    padding: 80px 0;
    background: #f8fafc;
}

.comparison-table {
    background: white;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    border: 1px solid #e2e8f0;
}

.comparison-header {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    background: #f8fafc;
    font-weight: 600;
    color: #1e293b;
}

.comparison-row {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    border-bottom: 1px solid #e2e8f0;
}

.comparison-row:last-child {
    border-bottom: none;
}

.comparison-cell {
    padding: 1.5rem;
    display: flex;
    align-items: center;
}

.comparison-cell.old {
    color: #64748b;
}

.comparison-cell.new {
    color: #059669;
    font-weight: 600;
}

/* CTA Features */
.cta-features {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-top: 2rem;
    flex-wrap: wrap;
}

.cta-feature {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #cbd5e1;
}

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

/* Future Preview */
.future-preview {
    padding: 80px 0;
    background: white;
}

.future-features {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.future-feature {
    background: #f8fafc;
    padding: 2rem;
    border-radius: 16px;
    text-align: center;
    border: 1px solid #e2e8f0;
    transition: transform 0.3s ease;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 280px;
}

.future-feature:hover {
    transform: translateY(-5px);
}

.future-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.future-feature h3 {
    margin-bottom: 1rem;
    color: #1e293b;
}

.future-feature p {
    color: #64748b;
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.future-feature .status {
    margin-top: auto;
    margin-bottom: 0;
}

.status {
    display: inline-block;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
}

.status.development {
    background: #dbeafe;
    color: #1e40af;
}

.status.design {
    background: #fef3c7;
    color: #92400e;
}

.status.planning {
    background: #f3e8ff;
    color: #7c3aed;
}

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

/* Page Header */
.page-header {
    padding: 120px 20px 80px 20px;
    background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
    text-align: center;
    position: relative;
    overflow: hidden;
    width: 100%;
    box-sizing: border-box;
}

.page-header::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="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.page-header .container {
    max-width: none;
    width: 100%;
    padding: 0;
    margin: 0;
    box-sizing: border-box;
    position: relative;
    z-index: 1;
}

.page-header h1 {
    font-size: 3.5rem;
    font-weight: 800;
    color: white;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, #ffffff, #cbd5e1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

.page-header p {
    font-size: 1.3rem;
    color: #cbd5e1;
    margin-bottom: 2rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

.breadcrumb {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #cbd5e1;
    font-size: 0.95rem;
}

.breadcrumb a {
    color: #60a5fa;
    text-decoration: none;
    transition: color 0.3s ease;
}

.breadcrumb a:hover {
    color: #93c5fd;
}

/* Feature Details Page */
.feature-details {
    padding: 20px;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    min-height: 30vh;
    width: 100%;
}

.feature-details .container {
    max-width: none;
    width: 100%;
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}

.feature-detail {
    margin-bottom: 2rem;
    background: white;
    border-radius: 16px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    border: 1px solid #e2e8f0;
    overflow: hidden;
    width: 100%;
    box-sizing: border-box;
}

.feature-detail:last-child {
    margin-bottom: 0;
}

.feature-header {
    display: flex;
    align-items: center;
    gap: 2rem;
    padding: 2rem;
    background: #f8fafc;
    border-bottom: 1px solid #e2e8f0;
    width: 100%;
    box-sizing: border-box;
}

.feature-icon {
    font-size: 4rem;
    flex-shrink: 0;
}

.feature-header .feature-info h2 {
    margin-bottom: 1rem;
    color: #1e293b;
    font-size: 2.2rem;
    font-weight: 700;
}

.feature-subtitle {
    color: #64748b;
    font-size: 1.2rem;
    margin-bottom: 0;
    font-weight: 500;
}

.feature-content {
    padding: 2rem;
    display: block;
    width: 100%;
    box-sizing: border-box;
}

.feature-description {
    width: 100%;
    margin-bottom: 2rem;
    box-sizing: border-box;
}

.feature-description h3 {
    margin-bottom: 1.5rem;
    color: #1e293b;
    font-size: 1.5rem;
    font-weight: 700;
}

.feature-description p {
    color: #475569;
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    line-height: 1.7;
    width: 100%;
    box-sizing: border-box;
}

.feature-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    width: 100%;
    box-sizing: border-box;
}

.info-item {
    background: #f8fafc;
    padding: 1.5rem;
    border-radius: 12px;
    border: 1px solid #e2e8f0;
    width: 100%;
    box-sizing: border-box;
}

.info-item h4 {
    color: #1e293b;
    margin-bottom: 1rem;
    font-size: 1.3rem;
    font-weight: 700;
}

.info-item p {
    color: #64748b;
    margin-bottom: 0.5rem;
    font-size: 1rem;
    line-height: 1.6;
}

.info-item ol {
    padding-left: 1.5rem;
}

.info-item li {
    color: #64748b;
    margin-bottom: 0.5rem;
    font-size: 1rem;
    line-height: 1.6;
}

/* 为每个功能卡片添加独特的主题色彩 */
.feature-detail:nth-child(1) .feature-icon {
    background: linear-gradient(135deg, #3b82f6, #1d4ed8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.feature-detail:nth-child(2) .feature-icon {
    background: linear-gradient(135deg, #8b5cf6, #7c3aed);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.feature-detail:nth-child(3) .feature-icon {
    background: linear-gradient(135deg, #06b6d4, #0891b2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.feature-detail:nth-child(4) .feature-icon {
    background: linear-gradient(135deg, #10b981, #059669);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.feature-detail:nth-child(5) .feature-icon {
    background: linear-gradient(135deg, #f59e0b, #d97706);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Roadmap Overview */
.roadmap-overview {
    padding: 60px 0;
    background: #f8fafc;
}

.roadmap-timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.roadmap-timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: #e2e8f0;
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
}

.timeline-item:nth-child(odd) {
    flex-direction: row;
}

.timeline-item:nth-child(even) {
    flex-direction: row-reverse;
}

.timeline-date {
    background: #3b82f6;
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 25px;
    font-weight: 600;
    position: relative;
    z-index: 2;
}

.timeline-content {
    background: white;
    padding: 1.5rem;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    border: 1px solid #e2e8f0;
    margin: 0 2rem;
    flex: 1;
    position: relative;
    z-index: 2;
}

.timeline-content h3 {
    margin-bottom: 0.5rem;
    color: #1e293b;
}

.timeline-content p {
    color: #64748b;
    margin-bottom: 0.75rem;
}

/* Detailed Roadmap */
.detailed-roadmap {
    padding: 60px 0;
    background: white;
}

.quarter-section {
    margin-bottom: 3rem;
}

.quarter-section h3 {
    color: #3b82f6;
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
    text-align: center;
}

.roadmap-feature {
    background: #f8fafc;
    padding: 1.5rem;
    border-radius: 16px;
    border: 1px solid #e2e8f0;
    margin-bottom: 1.5rem;
}

.roadmap-feature:last-child {
    margin-bottom: 0;
}

.roadmap-feature .feature-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1rem;
}

.roadmap-feature .feature-header .feature-icon {
    font-size: 2.5rem;
}

.roadmap-feature .feature-info {
    flex: 1;
}

.roadmap-feature .feature-info h4 {
    margin-bottom: 0.25rem;
    color: #1e293b;
    font-size: 1.4rem;
    font-weight: 700;
}

.roadmap-feature .status {
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 1rem;
    font-weight: 600;
    text-transform: uppercase;
    flex-shrink: 0;
    min-width: 80px;
    text-align: center;
}

.roadmap-feature .status.available {
    background: #dcfce7;
    color: #166534;
}

.roadmap-feature .status.development {
    background: #dbeafe;
    color: #1e40af;
}

.roadmap-feature .status.design {
    background: #fef3c7;
    color: #92400e;
}

.roadmap-feature .status.planning {
    background: #f3e8ff;
    color: #7c3aed;
}

.feature-details {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin: 1rem 0;
}

.detail-item strong {
    color: #1e293b;
    display: block;
    margin-bottom: 0.5rem;
}

.detail-item ul {
    list-style: none;
    padding-left: 0;
}

.detail-item li {
    padding: 0.25rem 0;
    color: #64748b;
    position: relative;
    padding-left: 1.5rem;
}

.detail-item li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #059669;
    font-weight: bold;
}

.progress-bar {
    background: #e2e8f0;
    border-radius: 10px;
    height: 20px;
    position: relative;
    margin-top: 1.5rem;
}

.progress-fill {
    background: linear-gradient(90deg, #3b82f6, #1d4ed8);
    height: 100%;
    border-radius: 10px;
    transition: width 0.3s ease;
}

.progress-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 0.9rem;
    font-weight: 500;
}

/* Long-term Vision */
.long-term-vision {
    padding: 80px 0;
    background: #f8fafc;
}

.vision-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.vision-item {
    background: white;
    padding: 2rem;
    border-radius: 16px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    border: 1px solid #e2e8f0;
    transition: transform 0.3s ease;
}

.vision-item:hover {
    transform: translateY(-5px);
}

.vision-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.vision-item h3 {
    margin-bottom: 1rem;
    color: #1e293b;
}

.vision-item p {
    color: #64748b;
    margin-bottom: 0;
}

/* Feedback Section */
.feedback-section {
    padding: 80px 0;
    background: white;
}

.feedback-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feedback-option {
    background: #f8fafc;
    padding: 2rem;
    border-radius: 16px;
    text-align: center;
    border: 1px solid #e2e8f0;
}

.feedback-option h3 {
    margin-bottom: 1rem;
    color: #1e293b;
}

.feedback-option p {
    color: #64748b;
    margin-bottom: 1.5rem;
}

/* CTA Sections */
.cta-section {
    text-align: center;
    padding: 3rem;
    background: #f8fafc;
    border-radius: 16px;
    margin-top: 3rem;
}

.cta-section p {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    color: #64748b;
}

.cta-main {
    padding: 80px 0;
    background: linear-gradient(135deg, #1e293b, #334155);
    color: white;
    text-align: center;
}

.cta-main h2 {
    color: white;
    margin-bottom: 1rem;
}

.cta-main p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    color: #cbd5e1;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Footer */
.footer {
    background: #0f172a;
    color: white;
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.footer-section h4 {
    color: white;
    margin-bottom: 1rem;
}

.footer-section p {
    color: #cbd5e1;
    margin-bottom: 0;
}

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

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: #cbd5e1;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: #3b82f6;
}

.download-links {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.download-btn {
    background: #3b82f6;
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 500;
    transition: background 0.3s ease;
}

.download-btn:hover {
    background: #2563eb;
}

.footer-bottom {
    border-top: 1px solid #334155;
    padding-top: 2rem;
    text-align: center;
}

.footer-bottom p {
    color: #94a3b8;
    margin-bottom: 0.5rem;
}

.footer-bottom a {
    color: #3b82f6;
    text-decoration: none;
}

.footer-bottom a:hover {
    text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: #1e293b;
        flex-direction: column;
        padding: 2rem;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero {
        padding: 100px 0 60px;
    }
    
    .hero-image img {
        height: 300px;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.75rem;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .features-grid,
    .future-features {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    .vision-grid,
    .feedback-options {
        grid-template-columns: 1fr;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 1rem;
    }
    
    .feature-content {
        display: block;
        width: 100%;
    }
    
    .feature-info {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .roadmap-timeline::before {
        left: 20px;
    }
    
    .timeline-item {
        flex-direction: column !important;
        align-items: flex-start;
        padding-left: 40px;
    }
    
    .timeline-date {
        margin-bottom: 1rem;
    }
    
    .timeline-content {
        margin: 0;
        width: 100%;
    }
    
    .comparison-header,
    .comparison-row {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    /* 移动端功能详情页面优化 */
    .feature-detail {
        padding: 2rem;
        margin-bottom: 2rem;
    }
    
    .feature-header {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }
    
    .feature-icon {
        font-size: 3rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero {
        padding: 80px 0 40px;
    }
    
    .hero-image img {
        height: 250px;
    }
    
    h1 {
        font-size: 1.75rem;
    }
    
    .btn-primary,
    .btn-secondary {
        padding: 10px 20px;
        font-size: 0.9rem;
    }
    
    .future-features {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .feature-card,
    .future-feature,
    .vision-item,
    .feedback-option {
        padding: 1rem;
    }
    
    .future-feature {
        min-height: 240px;
    }
    
    .feature-detail {
        padding: 1.5rem;
    }
    
    .timeline-content {
        padding: 1.5rem;
    }
}

/* Animation Classes */
.fade-in {
    opacity: 1;
    transform: none;
    transition: none;
}

.fade-in.visible {
    opacity: 1;
    transform: none;
}

/* 移除可能干扰的动画 */
.feature-detail {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
}

.feature-content {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
}

/* Loading States */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus States */
.btn-primary:focus,
.btn-secondary:focus,
.nav-link:focus {
    outline: 2px solid #3b82f6;
    outline-offset: 2px;
}

/* Print Styles */
@media print {
    .header,
    .hero-buttons,
    .cta-section,
    .cta-main,
    .footer {
        display: none;
    }
    
    body {
        background: white;
        color: black;
    }
    
    .hero {
        padding: 20px 0;
    }
}

/* Feature Highlights */
.feature-highlights {
    margin: 2rem 0;
}

.feature-highlights h4 {
    color: #1e293b;
    margin-bottom: 1.5rem;
    font-size: 1.2rem;
}

.highlights-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.highlight-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.5rem;
    background: white;
    border-radius: 12px;
    border: 1px solid #e2e8f0;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.highlight-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.highlight-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.highlight-item h5 {
    color: #1e293b;
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.highlight-item p {
    color: #64748b;
    margin-bottom: 0;
    font-size: 0.95rem;
    line-height: 1.5;
}

/* Platform Support */
.platform-support {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.platform-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: white;
    border-radius: 8px;
    border: 1px solid #e2e8f0;
}

.platform-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.platform-item strong {
    color: #1e293b;
    display: block;
    margin-bottom: 0.25rem;
}

.platform-item p {
    color: #64748b;
    margin-bottom: 0;
    font-size: 0.9rem;
}

/* Steps List */
.steps-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.step-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem;
    background: white;
    border-radius: 8px;
    border: 1px solid #e2e8f0;
}

.step-number {
    background: #3b82f6;
    color: white;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.9rem;
    flex-shrink: 0;
}

.step-item span:last-child {
    color: #1e293b;
    font-weight: 500;
}

/* Responsive adjustments for feature details */
@media (max-width: 768px) {
    .feature-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .feature-info {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .highlights-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .highlight-item {
        padding: 1rem;
    }
    
    .platform-item {
        padding: 0.75rem;
    }
    
    .step-item {
        padding: 0.5rem;
    }
}

/* 响应式设计优化 */
@media (max-width: 768px) {
    .features-overview {
        padding: 60px 0;
    }
    
    .features-overview h2 {
        font-size: 2rem;
    }
    
    .section-subtitle {
        font-size: 1rem;
        margin-bottom: 2rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        margin-top: 2rem;
    }
    
    .feature-card {
        padding: 2rem 1.5rem;
        border-radius: 16px;
    }
    
    .feature-icon {
        font-size: 3rem;
        margin-bottom: 1rem;
    }
    
    .feature-card h3 {
        font-size: 1.3rem;
    }
    
    .feature-card p {
        font-size: 0.95rem;
        margin-bottom: 1.5rem;
    }
    
    .feature-link {
        padding: 0.875rem 1.25rem;
        font-size: 0.95rem;
    }
}

@media (max-width: 480px) {
    .features-overview h2 {
        font-size: 1.75rem;
    }
    
    .feature-card {
        padding: 1.5rem 1rem;
    }
    
    .feature-icon {
        font-size: 2.5rem;
    }
    
    .feature-card h3 {
        font-size: 1.2rem;
    }
    
    .feature-card p {
        font-size: 0.9rem;
    }
}

/* 功能详情页面响应式设计 */
@media (max-width: 1024px) {
    .feature-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

@media (max-width: 768px) {
    .feature-details {
        padding: 30px 15px;
    }
    
    .feature-header {
        flex-direction: column;
        text-align: center;
        gap: 1.5rem;
        padding: 2rem;
    }
    
    .feature-icon {
        font-size: 3.5rem;
    }
    
    .feature-header .feature-info h2 {
        font-size: 1.8rem;
    }
    
    .feature-content {
        padding: 2rem;
        gap: 2rem;
    }
    
    .feature-description h3 {
        font-size: 1.4rem;
    }
    
    .feature-description p {
        font-size: 1rem;
    }
    
    .info-item {
        padding: 1.25rem;
    }
}

@media (max-width: 480px) {
    .feature-details {
        padding: 20px 10px;
    }
    
    .feature-header {
        padding: 1.5rem;
    }
    
    .feature-icon {
        font-size: 3rem;
    }
    
    .feature-header .feature-info h2 {
        font-size: 1.6rem;
    }
    
    .feature-content {
        padding: 1.5rem;
    }
    
    .info-item {
        padding: 1rem;
    }
}

/* 新功能详情页面样式 */
.detailed-features {
    padding: 60px 0;
    background: white;
}

.feature-section {
    margin-bottom: 2.5rem;
}

.feature-section h3 {
    color: #3b82f6;
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
    text-align: center;
}

.feature-detail {
    background: #f8fafc;
    padding: 1.5rem;
    border-radius: 16px;
    border: 1px solid #e2e8f0;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.feature-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid #e2e8f0;
}

.feature-header .feature-icon {
    font-size: 2.5rem;
}

.feature-info {
    flex: 1;
}

.feature-info h4 {
    margin-bottom: 0.25rem;
    color: #1e293b;
    font-size: 1.4rem;
    font-weight: 700;
}

.status {
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 1rem;
    font-weight: 600;
    text-transform: uppercase;
    flex-shrink: 0;
    min-width: 80px;
    text-align: center;
}

.status.available {
    background: #dcfce7;
    color: #166534;
}

.status.development {
    background: #dbeafe;
    color: #1e40af;
}

.status.design {
    background: #fef3c7;
    color: #92400e;
}

.status.planning {
    background: #f3e8ff;
    color: #7c3aed;
}

.feature-description p {
    color: #475569;
    margin-bottom: 1rem;
    font-size: 1.1rem;
    line-height: 1.7;
}

.feature-details {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin: 1rem 0;
}

.detail-item strong {
    color: #1e293b;
    font-size: 1rem;
    margin-bottom: 0.5rem;
    display: block;
}

.detail-item ul {
    margin-top: 0.25rem;
    padding-left: 1.5rem;
}

.detail-item li {
    color: #64748b;
    margin-bottom: 0.25rem;
    font-size: 0.95rem;
    line-height: 1.5;
}

.feature-platforms {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid #e2e8f0;
}

.feature-platforms strong {
    color: #1e293b;
    font-size: 1rem;
    margin-right: 1rem;
}

.platform-tag {
    display: inline-block;
    background: #e0e7ff;
    color: #3730a3;
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.85rem;
    font-weight: 500;
    margin: 0.25rem 0.5rem 0.25rem 0;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .detailed-features {
        padding: 40px 0;
    }
    
    .feature-section {
        margin-bottom: 2rem;
    }
    
    .feature-section h3 {
        font-size: 1.5rem;
        margin-bottom: 1rem;
    }
    
    .feature-detail {
        padding: 1.25rem;
    }
    
    .feature-details {
        grid-template-columns: 1fr;
        gap: 1.25rem;
    }
    
    .feature-header {
        flex-direction: column;
        text-align: center;
        gap: 0.75rem;
    }
    
    .feature-header .feature-icon {
        font-size: 2rem;
    }
    
    .roadmap-overview {
        padding: 40px 0;
    }
    
    .detailed-roadmap {
        padding: 40px 0;
    }
    
    .quarter-section {
        margin-bottom: 2rem;
    }
    
    .quarter-section h3 {
        font-size: 1.5rem;
        margin-bottom: 1rem;
    }
    
    .roadmap-feature {
        padding: 1.25rem;
        margin-bottom: 1rem;
    }
    
    .timeline-item {
        margin-bottom: 1.5rem;
    }
    
    .timeline-content {
        padding: 1.25rem;
    }
}

@media (max-width: 480px) {
    .detailed-features {
        padding: 30px 0;
    }
    
    .feature-detail {
        padding: 1rem;
    }
    
    .feature-section h3 {
        font-size: 1.3rem;
    }
    
    .feature-info h4 {
        font-size: 1.2rem;
    }
    
    .feature-description p {
        font-size: 1rem;
    }
    
    .roadmap-overview {
        padding: 30px 0;
    }
    
    .detailed-roadmap {
        padding: 30px 0;
    }
    
    .quarter-section h3 {
        font-size: 1.3rem;
    }
    
    .roadmap-feature {
        padding: 1rem;
    }
    
    .timeline-content {
        padding: 1rem;
    }
}

.timeline-content .status {
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 1rem;
    font-weight: 600;
    text-transform: uppercase;
    display: inline-block;
    min-width: 80px;
    text-align: center;
}

.timeline-content .status.available {
    background: #dcfce7;
    color: #166534;
}

.timeline-content .status.development {
    background: #dbeafe;
    color: #1e40af;
}

.timeline-content .status.design {
    background: #fef3c7;
    color: #92400e;
}

.timeline-content .status.planning {
    background: #f3e8ff;
    color: #7c3aed;
}