/* 全局样式重置和变量定义 - WaveSpeed.ai 风格 */
* {
	margin: 0;
	padding: 0;
	box-sizing: border-box;
}

:root {
	/* 主背景色 - 深色主题 */
	--primary-bg: #0a0a0a;
	--secondary-bg: #111111;
	--card-bg: #161616;
	--card-hover-bg: #1a1a1a;
	--border-color: #27272a;
	
	/* 品牌色 - 紫色调 */
	--primary-color: #8b5cf6;
	--secondary-color: #a78bfa;
	--accent-color: #c4b5fd;
	--success-color: #10b981;
	--warning-color: #f59e0b;
	--danger-color: #ef4444;
	
	/* 旧色彩兼容 */
	--dark-color: #1a1a1a;
	--light-color: #f5f5f5;
	
	/* 文字颜色 */
	--text-color: #ffffff;
	--text-primary: #ffffff;
	--text-secondary: #a1a1aa;
	--text-muted: #71717a;
	
	/* 渐变 */
	--gradient-primary: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 100%);
	--gradient-success: linear-gradient(135deg, #10b981 0%, #059669 100%);
	--gradient-danger: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
	--gradient-dark: linear-gradient(135deg, #161616 0%, #0a0a0a 100%);
	
	/* 阴影 - 深色主题 */
	--shadow-sm: 0 2px 4px rgba(0,0,0,0.5);
	--shadow-md: 0 4px 6px rgba(0,0,0,0.5);
	--shadow-lg: 0 10px 15px rgba(0,0,0,0.5);
	--shadow-xl: 0 20px 25px rgba(0,0,0,0.5);
	--shadow-glow: 0 0 20px rgba(139, 92, 246, 0.3);
}

body {
	font-family: 'Inter', -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
	line-height: 1.6;
	color: var(--text-primary);
	background-color: var(--primary-bg);
	overflow-x: hidden;
}

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

/* 导航栏样式 */
header {
	background: rgba(10, 10, 10, 0.8);
	backdrop-filter: blur(20px);
	border-bottom: 1px solid var(--border-color);
	position: fixed;
	top: 0;
	width: 100%;
	z-index: 1000;
}

.nav-container {
	display: flex;
	justify-content: space-between;
	align-items: center;
	padding: 1rem 2rem;
	max-width: 1200px;
	margin: 0 auto;
}

.logo {
	display: flex;
	align-items: center;
	font-size: 1.5rem;
	font-weight: 700;
	color: var(--text-primary);
}

.logo-icon {
	font-size: 2rem;
	margin-right: 0.5rem;
}

.nav-links {
	display: flex;
	align-items: center;
	gap: 2rem;
}

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

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

.cta-button {
	background: var(--gradient-primary);
	color: white !important;
	padding: 0.75rem 1.5rem;
	border-radius: 50px;
	transition: transform 0.3s ease, box-shadow 0.3s ease;
	text-shadow: 0 1px 2px rgba(0,0,0,0.15);
}

.cta-button:hover {
	transform: translateY(-2px);
	box-shadow: var(--shadow-md);
}

/* 英雄区域 */
.hero {
	margin-top: 80px;
	padding: 6rem 2rem;
	background: var(--primary-bg);
	color: white;
	position: relative;
	overflow: hidden;
}

.hero::before {
	content: '';
	position: absolute;
	top: -50%;
	left: -50%;
	width: 200%;
	height: 200%;
	background: radial-gradient(circle at center, rgba(139, 92, 246, 0.1) 0%, transparent 70%);
	animation: pulse 20s ease-in-out infinite;
}

@keyframes pulse {
	0%, 100% { transform: scale(1) rotate(0deg); }
	50% { transform: scale(1.1) rotate(180deg); }
}

.hero-content {
	max-width: 1000px;
	margin: 0 auto;
	text-align: center;
	position: relative;
	z-index: 1;
}

.hero-title {
	font-size: 3rem;
	font-weight: 800;
	margin-bottom: 1.5rem;
	line-height: 1.3;
}

.brand-text {
	display: block;
	font-size: 3.5rem;
	background: var(--gradient-primary);
	-webkit-background-clip: text;
	-webkit-text-fill-color: transparent;
	background-clip: text;
	margin-bottom: 0.5rem;
}

.tagline {
	display: block;
	font-size: 2.5rem;
	color: var(--text-primary);
}

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

.hero-subtitle {
	font-size: 1.25rem;
	margin-bottom: 3rem;
	color: var(--text-secondary);
}

.hero-stats {
	display: flex;
	gap: 4rem;
	margin-bottom: 3rem;
	justify-content: center;
}

.stat {
	text-align: center;
}

.stat-number {
	font-size: 3rem;
	font-weight: 800;
	background: var(--gradient-primary);
	-webkit-background-clip: text;
	-webkit-text-fill-color: transparent;
	background-clip: text;
}

.stat-label {
	font-size: 0.875rem;
	color: var(--text-secondary);
}

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

.primary-button, .secondary-button {
    padding: 1rem 2rem;
    border-radius: 8px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1rem;
    display: inline-block;
    text-decoration: none;
    text-align: center;
}

.primary-button {
	background: var(--gradient-primary);
	color: white;
	position: relative;
	overflow: hidden;
	text-shadow: 0 1px 2px rgba(0,0,0,0.15);
}

.primary-button::before {
	content: '';
	position: absolute;
	top: 0;
	left: -100%;
	width: 100%;
	height: 100%;
	background: rgba(255, 255, 255, 0.2);
	transition: left 0.3s ease;
}

.primary-button:hover::before {
	left: 100%;
}

.primary-button:hover {
	transform: translateY(-2px);
	box-shadow: var(--shadow-glow);
}

.secondary-button {
	background: transparent;
	color: var(--text-primary);
	border: 2px solid var(--primary-color);
}

.secondary-button:hover {
	background: var(--primary-color);
	color: white;
}

.hero-visual {
	position: absolute;
	right: 2rem;
	top: 50%;
	transform: translateY(-50%);
	display: none; /* 暂时隐藏右侧的预览卡片 */
}

/* 移动端显示 */
@media (min-width: 1200px) {
	.hero-visual {
		display: block;
	}
}

/* 排行榜预览 */
.leaderboard-preview {
	display: flex;
	gap: 1.5rem;
	justify-content: center;
	margin-top: 3rem;
	flex-wrap: wrap;
}

.leaderboard-item {
	background: var(--card-bg);
	border: 1px solid var(--border-color);
	border-radius: 16px;
	padding: 1.5rem 2rem;
	min-width: 250px;
	display: flex;
	align-items: center;
	gap: 1rem;
	transition: all 0.3s ease;
}

.leaderboard-item:hover {
	transform: translateY(-5px);
	border-color: var(--primary-color);
	box-shadow: var(--shadow-glow);
}

.leaderboard-item.winner {
	background: linear-gradient(135deg, rgba(139, 92, 246, 0.1) 0%, rgba(139, 92, 246, 0.05) 100%);
	border-color: var(--primary-color);
}

.leaderboard-item .rank {
	font-size: 1.5rem;
	font-weight: 800;
	color: var(--text-muted);
	min-width: 40px;
}

.leaderboard-item.winner .rank {
	background: var(--gradient-primary);
	-webkit-background-clip: text;
	-webkit-text-fill-color: transparent;
	background-clip: text;
}

.model-badge {
	display: flex;
	align-items: center;
	gap: 0.75rem;
	flex: 1;
}

.leaderboard-item .model-icon {
	width: 32px;
	height: 32px;
	font-size: 14px;
}

.leaderboard-item .model-name {
	font-weight: 600;
	color: var(--text-primary);
}

.leaderboard-item .score {
	font-size: 1.75rem;
	font-weight: 800;
	color: var(--text-primary);
}

.leaderboard-item.winner .score {
	background: var(--gradient-primary);
	-webkit-background-clip: text;
	-webkit-text-fill-color: transparent;
	background-clip: text;
}

.comparison-preview {
	background: rgba(22, 22, 22, 0.8);
	backdrop-filter: blur(20px);
	border-radius: 16px;
	padding: 2rem;
	box-shadow: var(--shadow-xl);
	border: 1px solid var(--border-color);
}

.preview-item {
	background: var(--card-bg);
	border-radius: 12px;
	padding: 1.5rem;
	margin-bottom: 1rem;
	color: var(--text-primary);
	transition: all 0.3s ease;
	border: 1px solid var(--border-color);
}

.preview-item:hover {
	transform: translateX(-10px);
	border-color: var(--primary-color);
}

.preview-item.winner {
	background: var(--gradient-primary);
	color: white;
	border: none;
}

.preview-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.crown {
	font-size: 1.5rem;
}

.preview-item h3 {
	font-size: 1.25rem;
	margin-bottom: 0.5rem;
}

.score {
	font-size: 2rem;
	font-weight: 800;
}

/* 对比表格部分 */
.comparison-section {
	padding: 5rem 0;
	background: var(--secondary-bg);
}

.section-title {
	font-size: 2.5rem;
	font-weight: 800;
	text-align: center;
	margin-bottom: 1rem;
	color: var(--text-primary);
}

.section-subtitle {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    font-size: 1.125rem;
}

.data-source {
    text-align: center;
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: 3rem;
}

.data-source a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

.data-source a:hover {
    text-decoration: underline;
}

.comparison-table {
	background: var(--card-bg);
	border-radius: 16px;
	overflow: hidden;
	box-shadow: var(--shadow-lg);
}

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

th {
	background: var(--card-hover-bg);
	padding: 1.5rem 1rem;
	text-align: left;
	font-weight: 600;
	color: var(--text-primary);
	border-bottom: 1px solid var(--border-color);
}

td {
	padding: 1.5rem 1rem;
	border-bottom: 1px solid var(--border-color);
	color: var(--text-secondary);
}

tr:last-child td {
	border-bottom: none;
}

tr:hover {
	background: var(--card-hover-bg);
}

.winner-row {
	background: linear-gradient(to right, rgba(139, 92, 246, 0.1), rgba(139, 92, 246, 0.05));
}

.model-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.rank-badge {
    background: var(--gradient-primary);
    color: white;
    width: 32px;
    height: 32px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.875rem;
    flex-shrink: 0;
    text-shadow: 0 1px 2px rgba(0,0,0,0.2);
}

.winner-row .rank-badge {
    background: var(--gradient-primary);
    box-shadow: var(--shadow-glow);
}

.model-icon-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
}

.model-icon {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
	font-size: 16px;
    color: white;
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
    text-shadow: 0 1px 2px rgba(0,0,0,0.3);
}

.model-icon:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.model-icon.bytedance {
    background: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 100%);
}

.model-icon.minimax {
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
}

.model-icon.google {
    background: linear-gradient(135deg, #4285F4 0%, #34A853 50%, #FBBC04 75%, #EA4335 100%);
}

.model-icon.kuaishou {
    background: linear-gradient(135deg, #ec4899 0%, #f43f5e 100%);
}

.preview-header .model-icon {
    width: 30px;
    height: 30px;
    font-size: 14px;
    margin: 0 0.5rem;
}

.winner-row .model-icon {
    transform: scale(1.1);
}

.winner-row .model-icon:hover {
    transform: scale(1.2);
    box-shadow: 0 6px 20px rgba(255, 107, 107, 0.4);
}

.model-version {
	font-size: 0.875rem;
	color: var(--text-muted);
}

.score-badge {
	display: inline-block;
	padding: 0.5rem 1rem;
	border-radius: 8px;
	background: var(--card-hover-bg);
	font-weight: 700;
	color: var(--text-primary);
}

.winner-row .score-badge {
    background: var(--gradient-primary);
    color: white;
    text-shadow: 0 1px 2px rgba(0,0,0,0.15);
}

.elo-range {
    font-size: 0.75rem;
    opacity: 0.8;
    font-weight: 400;
}

.rating {
	color: #fbbf24;
	font-size: 1.125rem;
}

.metric {
	font-weight: 600;
	color: var(--text-primary);
}

.percentage {
	font-weight: 600;
	color: var(--text-primary);
}

/* 演示视频区域 */
.demo-section {
    padding: 5rem 0;
    background: var(--secondary-bg);
}

.demo-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 2rem;
    margin-bottom: 3rem;
}

.demo-card {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 2rem;
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.demo-card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-glow);
}

.demo-card.main {
    grid-column: 1;
    grid-row: 1 / span 2;
}

.demo-card h3 {
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.demo-gallery {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin-bottom: 1rem;
}

.gallery-item {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.gallery-item:hover,
.gallery-item.active {
    border-color: var(--primary-color);
    transform: scale(1.05);
}

.gallery-placeholder {
    aspect-ratio: 16/9;
    background: var(--gradient-dark);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
}

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

.placeholder-icon {
    font-size: 3rem;
    margin-bottom: 0.5rem;
}

.gallery-placeholder p {
    font-size: 1rem;
    font-weight: 600;
}

.demo-controls {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin: 1rem 0;
}

.demo-nav {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    border: none;
    background: var(--card-hover-bg);
    color: var(--text-primary);
    font-size: 1.25rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.demo-nav:hover {
    background: var(--primary-color);
    color: white;
}

.demo-cta {
    display: inline-block;
    margin-top: 1rem;
    padding: 0.75rem 1.5rem;
    background: var(--gradient-primary);
    color: white;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
}

.demo-cta:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.demo-description {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.comparison-visual {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.speed-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--card-hover-bg);
    padding: 1rem 1.5rem;
    border-radius: 8px;
    position: relative;
    overflow: hidden;
    margin-bottom: 1rem;
}

.speed-bar::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    background: var(--gradient-primary);
    transition: width 1s ease;
    z-index: 0;
    opacity: 0.2;
}

.speed-bar.seedance::before {
    width: 100%;
}

.speed-bar.competitor::before {
    width: 37%;  /* 187/50 ≈ 37% of Seedance's speed */
}

.speed-bar span {
    position: relative;
    z-index: 1;
}

.model-name {
    font-weight: 600;
    color: var(--text-primary);
}

.time {
    font-weight: 700;
    color: var(--primary-color);
}

.quality-showcase {
    display: flex;
    justify-content: space-around;
    align-items: center;
}

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

.quality-badge {
    display: inline-block;
    padding: 1rem 2rem;
    border-radius: 12px;
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--card-hover-bg);
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.quality-badge.best {
    background: var(--gradient-primary);
    color: white;
}

.demo-features {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 2rem;
    margin-top: 2rem;
    border: 1px solid var(--border-color);
}

.demo-features h3 {
    text-align: center;
    margin-bottom: 2rem;
    color: var(--text-primary);
}

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

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

.feature-icon {
    display: inline-block;
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature-item h4 {
    color: #ffffff;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.feature-item p {
    color: #e0e0e0;
    line-height: 1.6;
    font-size: 0.875rem;
    font-weight: 400;
}

/* 评测结果部分 */
.benchmark-results {
    padding: 5rem 0;
    background: var(--primary-bg);
}

.benchmark-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
}

.benchmark-card {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 2rem;
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.benchmark-card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-glow);
}

.benchmark-card.main {
    grid-column: 1;
    grid-row: 1 / span 2;
}

.benchmark-card h3 {
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.benchmark-image {
    margin-bottom: 1.5rem;
    border-radius: 15px;
    overflow: hidden;
}

.benchmark-image.small {
    height: 200px;
}

.image-placeholder {
    background: var(--gradient-dark);
    padding: 3rem;
    text-align: center;
    min-height: 300px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
}

.benchmark-image.small .image-placeholder {
    min-height: 200px;
    padding: 2rem;
}

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

.image-placeholder p {
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.image-placeholder small {
    color: var(--text-muted);
    font-size: 0.875rem;
}

.benchmark-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.benchmark-highlights {
    display: flex;
    justify-content: space-around;
    gap: 1rem;
}

.highlight-item {
    display: flex;
    justify-content: space-between;
    padding: 0.75rem;
    background: var(--card-hover-bg);
    border-radius: 8px;
}

.metric-name {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.metric-score {
    color: var(--primary-color);
    font-weight: 700;
    font-size: 1.125rem;
}

.ranking-info {
    text-align: center;
    padding: 2rem 0;
}

.rank-display {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 1rem;
}

.rank-number {
    font-size: 3rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.rank-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-top: 0.5rem;
}

.rank-description {
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: 0.875rem;
}

.performance-list {
    list-style: none;
    padding: 0;
}

.performance-list li {
    padding: 0.5rem 0;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.performance-list strong {
    color: var(--primary-color);
    font-size: 1rem;
}

.benchmark-source {
    text-align: center;
    padding: 1.5rem;
    background: var(--card-bg);
    border-radius: 12px;
    margin-top: 2rem;
}

.benchmark-source p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.benchmark-source a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

.benchmark-source a:hover {
    text-decoration: underline;
}

/* 技术优势部分 */
.tech-advantages {
    padding: 5rem 0;
    background: var(--secondary-bg);
}

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

.tech-card {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

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

.tech-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    display: inline-block;
}

.tech-card h3 {
    color: #ffffff;
    margin-bottom: 1rem;
    font-size: 1.25rem;
    font-weight: 600;
}

.tech-card p {
    color: #e0e0e0;
    line-height: 1.6;
    font-size: 0.875rem;
    font-weight: 400;
}

.platform-cta {
    text-align: center;
    background: var(--card-bg);
    padding: 3rem;
    border-radius: 16px;
    border: 1px solid var(--border-color);
}

.platform-cta h3 {
    font-size: 1.75rem;
    margin-bottom: 1rem;
    color: #ffffff;
    font-weight: 600;
}

.platform-cta p {
    font-size: 1.125rem;
    margin-bottom: 2rem;
    color: #e0e0e0;
    font-weight: 400;
}

/* 性能图表部分 */
.performance-section {
    padding: 5rem 0;
    background: var(--primary-bg);
}

.charts-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
	gap: 2rem;
}

.chart-card {
	background: var(--card-bg);
	border-radius: 16px;
	padding: 2rem;
	border: 1px solid var(--border-color);
}

.chart-card h3 {
	margin-bottom: 1.5rem;
	color: var(--text-primary);
}

.bar-chart {
	display: flex;
	flex-direction: column;
	gap: 1rem;
}

.bar-item {
	display: flex;
	align-items: center;
	gap: 1rem;
}

.bar-label {
	min-width: 120px;
	font-weight: 500;
	color: var(--text-primary);
}

.bar-container {
	flex: 1;
	background: #E9ECEF;
	border-radius: 10px;
	overflow: hidden;
}

.bar {
	background: #7F8C8D;
	color: white;
	padding: 0.5rem 1rem;
	font-weight: 600;
	transition: width 1s ease;
}

.bar.seedance {
	background: var(--gradient-success);
}

.cost-comparison {
	display: flex;
	justify-content: space-around;
	align-items: center;
}

.cost-item {
	text-align: center;
	padding: 1.5rem;
	border-radius: 15px;
	background: #F8F9FA;
	color: #1a1a1a;
}

.cost-item.winner {
	background: var(--gradient-primary);
	color: white;
}

.cost-value {
	font-size: 2.5rem;
	font-weight: 800;
	margin: 0.5rem 0;
}

.cost-label {
	font-size: 0.875rem;
	opacity: 0.8;
}

.savings-badge {
	background: white;
	color: var(--primary-color);
	padding: 0.5rem 1rem;
	border-radius: 20px;
	font-weight: 600;
	margin-top: 0.5rem;
	display: inline-block;
}

.satisfaction-scores {
	display: flex;
	justify-content: space-around;
	align-items: center;
}

.score-circle {
	width: 150px;
	height: 150px;
	border-radius: 50%;
	background: #E9ECEF;
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	position: relative;
	color: #1a1a1a;
}

.score-circle.seedance {
	background: var(--gradient-success);
	color: white;
	text-shadow: 0 1px 3px rgba(0,0,0,0.2);
}

.score-value {
	font-size: 2.5rem;
	font-weight: 800;
}

.score-label {
	font-size: 0.875rem;
	margin-top: 0.5rem;
}

/* 价格部分 */
.pricing-section {
    padding: 5rem 0;
    background: white;
}

.pricing-comparison {
    display: flex;
    flex-direction: column;
    gap: 3rem;
}

.price-table {
    overflow-x: auto;
    border-radius: 16px;
    border: 1px solid var(--border-color);
}

.price-table table {
    width: 100%;
    background: var(--card-bg);
    border-collapse: collapse;
}

.price-table th {
    background: var(--card-hover-bg);
    padding: 1.25rem 1rem;
    text-align: left;
    font-weight: 600;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border-color);
}

.price-table td {
    padding: 1.25rem 1rem;
    border-bottom: 1px solid var(--border-color);
    vertical-align: middle;
    color: var(--text-primary);
}

.highlight-row {
    background: linear-gradient(to right, rgba(139, 92, 246, 0.1), rgba(139, 92, 246, 0.05));
    border-left: 3px solid var(--primary-color);
}

.model-name {
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.model-icon.small {
    width: 32px;
    height: 32px;
    font-size: 14px;
    flex-shrink: 0;
    border: 2px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.badge {
    font-size: 0.75rem;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-weight: 600;
    text-transform: uppercase;
}

.badge.new {
    background: var(--gradient-danger);
    color: white;
    text-shadow: 0 1px 2px rgba(0,0,0,0.2);
}

.badge.best-value {
    background: var(--gradient-success);
    color: white;
    text-shadow: 0 1px 2px rgba(0,0,0,0.2);
}

.price-cell {
    font-weight: 700;
    white-space: nowrap;
}

.price-value {
    font-size: 1.5rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.price-unit {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 400;
}

.try-button {
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    display: inline-block;
    transition: all 0.3s ease;
    background: var(--gradient-primary);
    color: white;
    white-space: nowrap;
    text-shadow: 0 1px 2px rgba(0,0,0,0.15);
}

.try-button.secondary {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.try-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.leaderboard-cta {
    text-align: center;
    padding: 2rem;
    background: #F8F9FA;
    border-radius: 15px;
    margin: 2rem 0;
}

.leaderboard-cta p {
    margin-bottom: 1rem;
    color: #333333;
    font-weight: 400;
}

.leaderboard-link {
    display: inline-block;
    color: var(--primary-color);
    font-weight: 600;
    text-decoration: none;
    padding: 0.75rem 1.5rem;
    border: 2px solid var(--primary-color);
    border-radius: 50px;
    transition: all 0.3s ease;
}

.leaderboard-link:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.highlight-card {
    background: #F8F9FA;
    border-radius: 20px;
    padding: 2rem;
    text-align: center;
    transition: transform 0.3s ease;
}

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

.highlight-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.9;
}

.highlight-card h3 {
    color: #1a1a1a;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.highlight-card p {
    color: #333333;
    line-height: 1.6;
    font-weight: 400;
}

/* 应用案例部分 */
.use-cases-section {
    padding: 5rem 0;
    background: white;
}

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

.use-case-card {
    background: #F8F9FA;
    border-radius: 20px;
    padding: 2.5rem;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.use-case-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.use-case-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

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

.use-case-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    display: inline-block;
}

.use-case-card h3 {
    color: #1a1a1a;
    margin-bottom: 1rem;
    font-weight: 600;
}

.use-case-card p {
    color: #333333;
    line-height: 1.8;
    margin-bottom: 1.5rem;
    font-weight: 400;
}

.learn-more {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.learn-more:hover {
    color: var(--secondary-color);
}

.case-study-cta {
    text-align: center;
    background: var(--gradient-primary);
    color: white;
    padding: 3rem;
    border-radius: 20px;
}

.case-study-cta h3 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.case-study-cta p {
    font-size: 1.125rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

/* 客户评价部分 */
.testimonials-section {
    padding: 5rem 0;
    background: #F8F9FA;
}

.testimonials-section .section-title {
    color: #2c3e50;
}

/* 确保白色背景部分的标题是深色 */
.pricing-section .section-title,
.use-cases-section .section-title {
    color: #2c3e50;
}

.pricing-section .section-subtitle,
.use-cases-section .section-subtitle {
    color: #5a5a5a;
}

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

.testimonial-card {
	background: white;
	border-radius: 20px;
	padding: 2.5rem;
	box-shadow: var(--shadow-md);
	transition: transform 0.3s ease;
	position: relative;
	border: 1px solid #e8e8e8;
}

.testimonial-card:hover {
	transform: translateY(-5px);
	box-shadow: var(--shadow-xl);
	border-color: #3498db;
}

.testimonial-label {
	position: absolute;
	top: -14px;
	left: 30px;
	background: #3498db;
	color: white;
	padding: 6px 20px;
	border-radius: 20px;
	font-size: 0.875rem;
	font-weight: 600;
	letter-spacing: 0.5px;
	text-shadow: 0 1px 2px rgba(0,0,0,0.2);
}

.stars {
	color: #FFC107;
	font-size: 1.5rem;
	margin-bottom: 1.25rem;
	letter-spacing: 3px;
}

.testimonial-text {
	font-size: 1.125rem;
	margin-bottom: 2rem;
	line-height: 1.9;
	color: #2c3e50;
	font-weight: 400;
	min-height: 100px;
}

.testimonial-author {
	display: flex;
	align-items: center;
	gap: 1rem;
	padding-top: 1.5rem;
	border-top: 1px solid #f0f0f0;
}

.author-avatar {
	width: 52px;
	height: 52px;
	background: linear-gradient(135deg, #3498db, #2c3e50);
	color: white;
	border-radius: 50%;
	display: flex;
	align-items: center;
	justify-content: center;
	font-weight: 600;
	font-size: 1.125rem;
	flex-shrink: 0;
	text-shadow: 0 1px 2px rgba(0,0,0,0.3);
}

.testimonial-author > div:not(.author-avatar) {
	flex: 1;
}

.testimonial-author strong {
	color: var(--dark-color);
	font-size: 1.125rem;
	display: block;
	margin-bottom: 0.25rem;
	font-weight: 600;
}

.testimonial-author span {
	color: #7F8C8D;
	font-size: 0.9375rem;
	display: block;
}

/* CTA区域 */
.cta-section {
	padding: 5rem 0;
	background: var(--gradient-primary);
	color: white;
	text-align: center;
}

.cta-content h2 {
	font-size: 2.5rem;
	margin-bottom: 1rem;
}

.cta-content p {
	font-size: 1.25rem;
	margin-bottom: 2rem;
	opacity: 0.9;
}

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

.primary-button.large,
.secondary-button.large {
	padding: 1.25rem 2.5rem;
	font-size: 1.125rem;
}

.cta-note {
	font-size: 0.875rem;
	opacity: 0.8;
}

/* 页脚 */
footer {
	background: var(--dark-color);
	color: white;
	padding: 3rem 0 1rem;
}

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

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

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

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

.footer-section a {
	color: #BDC3C7;
	text-decoration: none;
	transition: color 0.3s ease;
}

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

.footer-bottom {
	text-align: center;
	padding-top: 2rem;
	border-top: 1px solid #34495E;
	color: #7F8C8D;
}

/* 响应式设计 */
@media (max-width: 768px) {
	.hero {
		text-align: center;
	}
	
	.hero-title {
		font-size: 1.75rem;
	}
	
	.brand-text {
		font-size: 2.25rem;
	}
	
	.tagline {
		font-size: 1.5rem;
	}
	
	.hero-stats {
		justify-content: center;
	}
	
	.hero-visual {
		position: relative;
		right: auto;
		top: auto;
		transform: none;
		margin-top: 2rem;
	}
	
	.leaderboard-preview {
		flex-direction: column;
		align-items: center;
	}
	
	.leaderboard-item {
		width: 100%;
		max-width: 400px;
		min-width: unset;
	}
	
	.nav-links {
		display: none;
	}
	
	.comparison-table {
		font-size: 0.875rem;
	}
	
	th, td {
		padding: 0.75rem 0.5rem;
	}
	
	.charts-grid {
		grid-template-columns: 1fr;
	}
	
	    .price-table {
        font-size: 0.875rem;
    }
    
    .price-table th, .price-table td {
        padding: 0.75rem 0.5rem;
    }
    
    .price-highlights {
        grid-template-columns: 1fr;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .primary-button.large,
    .secondary-button.large {
        width: 100%;
        max-width: 300px;
    }
    
    .demo-grid {
        grid-template-columns: 1fr;
    }
    
    .demo-card.main {
        grid-column: 1;
        grid-row: auto;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .demo-gallery {
        grid-template-columns: 1fr;
    }
    
    .benchmark-grid {
        grid-template-columns: 1fr;
    }
    
    .benchmark-card.main {
        grid-column: 1;
        grid-row: auto;
    }
}

/* 动画效果 */
@keyframes fadeIn {
	from {
		opacity: 0;
		transform: translateY(20px);
	}
	to {
		opacity: 1;
		transform: translateY(0);
	}
}

.hero-content,
.chart-card,
.pricing-card,
.testimonial-card {
	animation: fadeIn 0.8s ease-out;
}

/* 加载动画 */
@keyframes pulse {
	0% {
		transform: scale(1);
	}
	50% {
		transform: scale(1.05);
	}
	100% {
		transform: scale(1);
	}
}

.primary-button:active {
	animation: pulse 0.3s ease;
}

/* 核心能力展示部分 */
.capabilities-showcase {
    padding: 80px 0;
    background: var(--secondary-bg);
}

.capabilities-grid {
    margin-top: 60px;
}

.capability-section {
    margin-bottom: 80px;
    padding: 40px;
    background: var(--card-bg);
    border-radius: 16px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.capability-section:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-glow);
}

.capability-title {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 20px;
    font-size: 28px;
    color: var(--text-primary);
}

.capability-number {
    display: inline-block;
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    color: white;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 18px;
    text-shadow: 0 1px 2px rgba(0,0,0,0.2);
}

.capability-description {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 30px;
    line-height: 1.8;
}

.demo-videos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 30px;
}

.demo-video-card {
    background: var(--card-hover-bg);
    border-radius: 16px;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid var(--border-color);
}

.demo-video-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-glow);
}

.video-container {
    position: relative;
    background: var(--gradient-dark);
    border-radius: 12px;
    overflow: hidden;
}

.video-container video {
    width: 100%;
    height: auto;
    display: block;
    background: var(--gradient-dark);
    min-height: 300px;
}

/* 当视频无法加载时显示占位符 */
.video-container video:not([src]) + .video-placeholder,
.video-container video[src=""] + .video-placeholder {
    display: flex !important;
}

.video-placeholder {
    padding: 40px;
    text-align: center;
    background: var(--gradient-dark);
    min-height: 300px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.video-info {
    padding: 20px;
    background: var(--card-bg);
    border-top: 1px solid var(--border-color);
}

.video-icon {
    font-size: 60px;
    margin-bottom: 20px;
    filter: grayscale(0%);
}

.video-placeholder h4 {
    font-size: 20px;
    color: var(--text-primary);
    margin-bottom: 15px;
}

.video-info h4 {
    font-size: 18px;
    color: var(--text-primary);
	margin-bottom: 10px;
}

.video-placeholder .prompt {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 20px;
    padding: 0 20px;
    font-style: italic;
}

.video-specs {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin-top: 15px;
}

.video-specs span {
    background: var(--card-bg);
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 12px;
    color: var(--primary-color);
    font-weight: 500;
    border: 1px solid var(--border-color);
}

.play-button {
    display: block;
    padding: 15px 30px;
    background: var(--gradient-primary);
    color: white;
    text-decoration: none;
    font-weight: 600;
    text-align: center;
    transition: all 0.3s ease;
    text-shadow: 0 1px 2px rgba(0,0,0,0.15);
}

.play-button:hover {
    transform: translateX(5px);
    box-shadow: var(--shadow-glow);
}

.experience-cta {
    text-align: center;
    margin-top: 80px;
    padding: 60px;
    background: var(--card-bg);
	border-radius: 16px;
    border: 1px solid var(--border-color);
}

.experience-cta h3 {
    font-size: 32px;
    color: var(--text-primary);
    margin-bottom: 15px;
}

.experience-cta p {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 30px;
}

.cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.primary-button.large,
.secondary-button.large {
    padding: 18px 40px;
    font-size: 18px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .capability-section {
        padding: 30px 20px;
    }
    
    .capability-title {
        font-size: 22px;
        flex-wrap: wrap;
    }
    
    .capability-number {
        width: 40px;
        height: 40px;
        font-size: 16px;
    }
    
    .demo-videos-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .video-placeholder {
        padding: 30px 20px;
        min-height: 250px;
    }
    
    .video-icon {
        font-size: 48px;
    }
    
    .experience-cta {
        padding: 40px 20px;
    }
    
    .experience-cta h3 {
        font-size: 24px;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .primary-button.large,
    .secondary-button.large {
        width: 100%;
        max-width: 300px;
    }
}

.demo-video-card.enhanced {
    background: var(--card-bg);
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.demo-video-card.enhanced:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.video-wrapper {
    position: relative;
    width: 100%;
    background: #000;
    border-radius: 12px;
    overflow: hidden;
}

.video-caption {
    padding: 20px;
    background: var(--card-bg);
}

.video-caption h4 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.video-caption p {
    font-size: 14px;
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.5;
}

.demo-videos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 30px;
    margin-top: 30px;
}

@media (max-width: 768px) {
    .demo-videos-grid {
        grid-template-columns: 1fr;
    }
}