/* 暗黑科技风格样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #141420;
    --bg-card: #1a1a2e;
    --text-primary: #e0e0e0;
    --text-secondary: #a0a0a0;
    --accent-primary: #00ff88;
    --accent-secondary: #00d4ff;
    --accent-tertiary: #ff00ff;
    --border-color: #2a2a3e;
    --glow-color: rgba(0, 255, 136, 0.3);
}

body {
    font-family: 'Microsoft YaHei', 'Segoe UI', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* 背景粒子画布 */
#particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

/* 容器 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
    z-index: 1;
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(10, 10, 15, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    padding: 15px 0;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: bold;
}

.logo-icon {
    font-size: 28px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 26px !important;
    height: 26px !important;
    flex-shrink: 0;
    overflow: hidden;
}

.logo-icon img {
    width: 26px !important;
    height: 26px !important;
    max-width: 26px !important;
    max-height: 26px !important;
    min-width: 26px;
    min-height: 26px;
    display: block;
    object-fit: contain;
    /* 移除外发光效果 */
}

.logo-text {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-menu a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s;
    position: relative;
}

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

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-primary);
    transition: width 0.3s;
}

.nav-menu a:hover::after {
    width: 100%;
}

/* Hero区域 */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
    position: relative;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-title {
    font-size: 56px;
    font-weight: bold;
    margin-bottom: 20px;
    line-height: 1.2;
}

.gradient-text {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary), var(--accent-tertiary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradient-shift 3s ease infinite;
    background-size: 200% 200%;
}

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

.version-badge {
    display: inline-block;
    margin-left: 15px;
    padding: 5px 15px;
    background: rgba(0, 255, 136, 0.1);
    border: 1px solid var(--accent-primary);
    border-radius: 20px;
    font-size: 18px;
    color: var(--accent-primary);
}

.hero-subtitle {
    font-size: 24px;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.hero-description {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 15px;
    line-height: 1.8;
}

.hero-description-sub {
    font-size: 15px;
    color: var(--text-secondary);
    margin-bottom: 15px;
    line-height: 1.8;
    padding: 15px 20px;
    background: rgba(0, 212, 255, 0.05);
    border-left: 3px solid var(--accent-secondary);
    border-radius: 6px;
}

.trial-banner {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 18px 25px;
    background: linear-gradient(135deg, rgba(0, 255, 136, 0.15), rgba(0, 212, 255, 0.15));
    border: 2px solid var(--accent-primary);
    border-radius: 12px;
    margin: 25px 0;
    position: relative;
    overflow: hidden;
    animation: trial-pulse 2s ease-in-out infinite;
    box-shadow: 0 4px 20px rgba(0, 255, 136, 0.3);
}

.trial-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    animation: trial-shine 3s infinite;
}

@keyframes trial-pulse {
    0%, 100% {
        box-shadow: 0 4px 20px rgba(0, 255, 136, 0.3);
        border-color: var(--accent-primary);
    }
    50% {
        box-shadow: 0 4px 30px rgba(0, 255, 136, 0.5);
        border-color: var(--accent-secondary);
    }
}

@keyframes trial-shine {
    0% {
        left: -100%;
    }
    100% {
        left: 100%;
    }
}

.trial-icon {
    font-size: 32px;
    flex-shrink: 0;
    animation: trial-bounce 2s ease-in-out infinite;
}

@keyframes trial-bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-5px);
    }
}

.trial-content {
    flex: 1;
}

.trial-title {
    font-size: 20px;
    font-weight: bold;
    color: var(--accent-primary);
    margin-bottom: 5px;
    text-shadow: 0 0 10px rgba(0, 255, 136, 0.5);
}

.trial-desc {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.5;
}

.trial-badge {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    color: var(--bg-primary);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: bold;
    white-space: nowrap;
    box-shadow: 0 2px 10px rgba(0, 255, 136, 0.4);
    animation: badge-glow 2s ease-in-out infinite;
}

@keyframes badge-glow {
    0%, 100% {
        box-shadow: 0 2px 10px rgba(0, 255, 136, 0.4);
    }
    50% {
        box-shadow: 0 2px 20px rgba(0, 255, 136, 0.6);
    }
}

.trial-banner-small {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    background: linear-gradient(135deg, rgba(0, 255, 136, 0.12), rgba(0, 212, 255, 0.12));
    border: 1.5px solid var(--accent-primary);
    border-radius: 25px;
    margin-bottom: 20px;
    box-shadow: 0 2px 10px rgba(0, 255, 136, 0.2);
}

.trial-icon-small {
    font-size: 18px;
}

.trial-text-small {
    font-size: 14px;
    color: var(--accent-primary);
    font-weight: bold;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    margin-top: 0;
}

.btn {
    padding: 15px 35px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: bold;
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
    display: inline-block;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    color: var(--bg-primary);
    border: none;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px var(--glow-color);
}

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

.btn-secondary:hover {
    background: rgba(0, 255, 136, 0.1);
}

.btn-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn-primary:hover .btn-glow {
    width: 300px;
    height: 300px;
}

/* 浮动卡片 */
.floating-card {
    position: relative;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

.card-content {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.terminal-window {
    background: var(--bg-primary);
    border-radius: 8px;
    overflow: hidden;
}

.terminal-header {
    background: var(--bg-secondary);
    padding: 10px 15px;
    display: flex;
    align-items: center;
    gap: 8px;
    border-bottom: 1px solid var(--border-color);
}

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

.terminal-dot.red { background: #ff5f56; }
.terminal-dot.yellow { background: #ffbd2e; }
.terminal-dot.green { background: #27c93f; }

.terminal-title {
    margin-left: 10px;
    color: var(--text-secondary);
    font-size: 12px;
}

.terminal-body {
    padding: 20px;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 14px;
}

.terminal-line {
    margin-bottom: 10px;
    color: var(--text-primary);
}

.prompt {
    color: var(--accent-primary);
    margin-right: 8px;
}

.command {
    color: var(--text-primary);
}

.output {
    color: var(--text-secondary);
    margin-left: 20px;
}

.success {
    color: var(--accent-primary);
    margin-right: 8px;
}

.cursor {
    animation: blink 1s infinite;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

/* Hero区域亮点提示 */
.hero-highlight {
    margin-top: 30px;
    margin-bottom: 50px;
    padding: 20px;
    background: linear-gradient(135deg, rgba(0, 255, 136, 0.1), rgba(0, 212, 255, 0.1));
    border: 1px solid var(--accent-primary);
    border-radius: 12px;
    backdrop-filter: blur(10px);
}

.hero-highlight-village {
    background: linear-gradient(135deg, rgba(255, 193, 7, 0.15), rgba(255, 87, 34, 0.15));
    border-color: #ff9800;
    margin-top: 20px;
}

.highlight-badge-village {
    background: linear-gradient(135deg, #ff9800, #ff5722);
}

.village-features-quick {
    display: flex;
    gap: 20px;
    margin-top: 15px;
    flex-wrap: wrap;
}

.village-feature-quick {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 15px;
    background: rgba(255, 152, 0, 0.1);
    border: 1px solid rgba(255, 152, 0, 0.3);
    border-radius: 20px;
    font-size: 13px;
}

.village-icon {
    font-size: 16px;
}

.village-text {
    color: var(--text-primary);
    font-weight: 500;
}

.highlight-badge {
    display: inline-block;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    color: var(--bg-primary);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: bold;
    margin-bottom: 10px;
}

.highlight-text {
    font-size: 16px;
    color: var(--text-primary);
    line-height: 1.8;
    margin: 0;
}

.highlight-keyword {
    color: var(--accent-primary);
    font-weight: bold;
    font-size: 18px;
}

.highlight-emphasis {
    color: var(--accent-secondary);
    font-weight: bold;
}

/* 核心亮点展示区域 */
.highlight-section {
    padding: 120px 0;
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 50%, var(--bg-primary) 100%);
    position: relative;
    overflow: hidden;
}

.highlight-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 30%, rgba(0, 255, 136, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 70%, rgba(0, 212, 255, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.highlight-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.highlight-left {
    padding-right: 20px;
}

.highlight-badge-large {
    display: inline-block;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    color: var(--bg-primary);
    padding: 8px 20px;
    border-radius: 25px;
    font-size: 14px;
    font-weight: bold;
    margin-bottom: 20px;
    animation: pulse-glow 2s ease-in-out infinite;
}

@keyframes pulse-glow {
    0%, 100% {
        box-shadow: 0 0 20px rgba(0, 255, 136, 0.4);
    }
    50% {
        box-shadow: 0 0 30px rgba(0, 255, 136, 0.6);
    }
}

.highlight-title {
    font-size: 48px;
    font-weight: bold;
    margin-bottom: 15px;
    line-height: 1.2;
}

.highlight-subtitle {
    font-size: 20px;
    color: var(--text-secondary);
    margin-bottom: 40px;
    line-height: 1.6;
}

.highlight-steps {
    margin-bottom: 40px;
}

.step-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    margin-bottom: 30px;
    padding: 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    transition: all 0.3s;
}

.step-item:hover {
    border-color: var(--accent-primary);
    transform: translateX(10px);
    box-shadow: 0 5px 20px rgba(0, 255, 136, 0.2);
}

.step-number {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    color: var(--bg-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: bold;
    flex-shrink: 0;
}

.step-content h4 {
    font-size: 20px;
    color: var(--accent-primary);
    margin-bottom: 8px;
}

.step-content p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

.data-sources {
    margin-top: 15px;
    padding: 15px;
    background: rgba(0, 255, 136, 0.05);
    border-left: 3px solid var(--accent-primary);
    border-radius: 6px;
}

.data-sources-title {
    font-size: 13px;
    color: var(--accent-primary);
    font-weight: bold;
    margin-bottom: 10px !important;
}

.data-sources-list {
    list-style: none;
    padding-left: 0;
    margin: 0;
}

.data-sources-list li {
    font-size: 12px;
    color: var(--text-secondary);
    padding: 5px 0;
    line-height: 1.6;
}

.feature-data-sources {
    margin-top: 20px;
    padding: 15px;
    background: rgba(0, 255, 136, 0.05);
    border: 1px solid rgba(0, 255, 136, 0.2);
    border-radius: 8px;
}

.data-sources-label {
    font-size: 13px;
    color: var(--accent-primary);
    font-weight: bold;
    margin-bottom: 8px !important;
}

.data-sources-desc {
    font-size: 12px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

.data-security-note {
    margin-top: 15px;
    padding: 12px 15px;
    background: rgba(0, 255, 136, 0.1);
    border: 1px solid var(--accent-primary);
    border-radius: 6px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.security-icon {
    font-size: 18px;
    flex-shrink: 0;
}

.security-text {
    font-size: 12px;
    color: var(--accent-primary);
    font-weight: 500;
    line-height: 1.5;
}

.security-highlight {
    display: block;
    margin-top: 8px;
    font-size: 13px;
    color: var(--accent-primary);
    font-weight: 500;
}

.highlight-benefits {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
}

.benefit-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 20px;
    background: rgba(0, 255, 136, 0.1);
    border: 1px solid var(--accent-primary);
    border-radius: 8px;
}

.benefit-icon {
    font-size: 24px;
}

.benefit-text {
    font-size: 14px;
    color: var(--text-primary);
    font-weight: 500;
}

.highlight-right {
    position: relative;
}

.highlight-demo {
    position: sticky;
    top: 100px;
}

.demo-window {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.demo-header {
    background: var(--bg-secondary);
    padding: 12px 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    border-bottom: 1px solid var(--border-color);
}

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

.demo-dot.red {
    background: #ff5f56;
}

.demo-dot.yellow {
    background: #ffbd2e;
}

.demo-dot.green {
    background: #27c93f;
}

.demo-title {
    flex: 1;
    text-align: center;
    color: var(--text-secondary);
    font-size: 12px;
}

.demo-content {
    padding: 20px;
}

.demo-table {
    margin-bottom: 20px;
}

.demo-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
    margin-bottom: 8px;
}

.demo-header-row {
    margin-bottom: 12px;
}

.demo-cell {
    padding: 10px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 12px;
    color: var(--text-primary);
    text-align: center;
}

.demo-header-row .demo-cell {
    background: rgba(0, 255, 136, 0.1);
    border-color: var(--accent-primary);
    color: var(--accent-primary);
    font-weight: bold;
}

.demo-highlight {
    background: linear-gradient(135deg, rgba(0, 255, 136, 0.2), rgba(0, 212, 255, 0.2)) !important;
    border-color: var(--accent-primary) !important;
    color: var(--accent-primary) !important;
    font-weight: bold;
    animation: highlight-pulse 2s ease-in-out infinite;
}

@keyframes highlight-pulse {
    0%, 100% {
        box-shadow: 0 0 10px rgba(0, 255, 136, 0.3);
    }
    50% {
        box-shadow: 0 0 20px rgba(0, 255, 136, 0.5);
    }
}

.demo-filling {
    position: relative;
    overflow: hidden;
}

.demo-filling::after {
    content: '...';
    animation: dots 1.5s steps(4, end) infinite;
}

@keyframes dots {
    0%, 20% { content: '.'; }
    40% { content: '..'; }
    60%, 100% { content: '...'; }
}

.demo-progress {
    margin-top: 20px;
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--bg-secondary);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 10px;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
    border-radius: 4px;
    width: 0%;
    animation: progress-animation 3s ease-in-out infinite;
}

@keyframes progress-animation {
    0% { width: 0%; }
    50% { width: 60%; }
    100% { width: 100%; }
}

.progress-text {
    text-align: center;
    font-size: 12px;
    color: var(--text-secondary);
    margin: 0;
}

/* 功能卡片高亮样式 */
.feature-card-highlight {
    border: 2px solid var(--accent-primary);
    background: linear-gradient(135deg, rgba(0, 255, 136, 0.05), rgba(0, 212, 255, 0.05));
    position: relative;
}

.feature-card-professional {
    border: 2px solid var(--accent-secondary);
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.05), rgba(255, 0, 255, 0.05));
    position: relative;
}

.feature-card-professional::after {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(135deg, var(--accent-secondary), var(--accent-tertiary));
    border-radius: 12px;
    z-index: -1;
    opacity: 0.2;
    animation: border-glow-secondary 3s ease-in-out infinite;
}

@keyframes border-glow-secondary {
    0%, 100% {
        opacity: 0.2;
    }
    50% {
        opacity: 0.4;
    }
}

.feature-highlights {
    margin-top: 20px;
    padding: 15px;
    background: rgba(0, 212, 255, 0.08);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 8px;
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 0;
}

.highlight-icon {
    font-size: 18px;
    flex-shrink: 0;
}

.highlight-text {
    font-size: 13px;
    color: var(--text-primary);
    line-height: 1.5;
}

.personalized-generation {
    margin-top: 25px;
    padding: 20px;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.1), rgba(255, 0, 255, 0.1));
    border: 2px solid var(--accent-secondary);
    border-radius: 10px;
    position: relative;
    overflow: hidden;
}

.personalized-generation::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-secondary), var(--accent-tertiary));
}

.personalized-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 15px;
}

.personalized-icon {
    font-size: 24px;
}

.personalized-title {
    font-size: 16px;
    color: var(--accent-secondary);
    font-weight: bold;
}

.personalized-content {
    margin-top: 10px;
}

.personalized-desc {
    font-size: 13px;
    color: var(--text-primary);
    margin-bottom: 15px;
    line-height: 1.6;
    font-weight: 500;
}

.personalized-features {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.personalized-feature-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 8px 12px;
    background: rgba(0, 212, 255, 0.05);
    border-radius: 6px;
    transition: all 0.3s;
}

.personalized-feature-item:hover {
    background: rgba(0, 212, 255, 0.1);
    transform: translateX(5px);
}

.feature-check {
    color: var(--accent-secondary);
    font-weight: bold;
    font-size: 16px;
    flex-shrink: 0;
    margin-top: 2px;
}

.personalized-feature-item span:last-child {
    font-size: 12px;
    color: var(--text-primary);
    line-height: 1.5;
}

.feature-card-personalized {
    border: 2px solid var(--accent-tertiary);
    background: linear-gradient(135deg, rgba(255, 0, 255, 0.05), rgba(0, 212, 255, 0.05));
    position: relative;
}

.feature-card-personalized::after {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(135deg, var(--accent-tertiary), var(--accent-secondary));
    border-radius: 12px;
    z-index: -1;
    opacity: 0.2;
    animation: border-glow-tertiary 3s ease-in-out infinite;
}

.feature-card-village {
    border: 2px solid #ff9800;
    background: linear-gradient(135deg, rgba(255, 152, 0, 0.1), rgba(255, 87, 34, 0.1));
    position: relative;
}

.feature-card-village::after {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(135deg, #ff9800, #ff5722);
    border-radius: 12px;
    z-index: -1;
    opacity: 0.2;
    animation: border-glow-village 3s ease-in-out infinite;
}

@keyframes border-glow-village {
    0%, 100% {
        opacity: 0.2;
    }
    50% {
        opacity: 0.4;
    }
}

.village-demo {
    margin-top: 25px;
    padding: 20px;
    background: linear-gradient(135deg, rgba(255, 152, 0, 0.08), rgba(255, 87, 34, 0.08));
    border: 1.5px solid rgba(255, 152, 0, 0.3);
    border-radius: 12px;
}

.demo-title {
    font-size: 16px;
    color: #ff9800;
    font-weight: bold;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.demo-steps {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 15px;
}

.demo-step {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 15px;
    background: rgba(255, 152, 0, 0.05);
    border-radius: 8px;
    border-left: 3px solid #ff9800;
    transition: all 0.3s;
}

.demo-step:hover {
    background: rgba(255, 152, 0, 0.1);
    transform: translateX(5px);
}

.demo-step-icon {
    font-size: 18px;
    flex-shrink: 0;
}

.demo-step-text {
    font-size: 14px;
    color: var(--text-primary);
    line-height: 1.5;
}

.demo-benefit {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 15px;
    background: rgba(0, 255, 136, 0.1);
    border: 1px solid var(--accent-primary);
    border-radius: 8px;
    margin-top: 15px;
}

.benefit-icon {
    font-size: 20px;
    flex-shrink: 0;
}

.benefit-text {
    font-size: 14px;
    color: var(--accent-primary);
    font-weight: bold;
    line-height: 1.5;
}

@keyframes border-glow-tertiary {
    0%, 100% {
        opacity: 0.2;
    }
    50% {
        opacity: 0.4;
    }
}

.personalized-comparison {
    margin-top: 20px;
    padding: 15px;
    background: rgba(255, 0, 255, 0.08);
    border: 1px solid rgba(255, 0, 255, 0.3);
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.comparison-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 10px 12px;
    border-radius: 6px;
    transition: all 0.3s;
}

.comparison-bad {
    background: rgba(255, 100, 100, 0.1);
    border-left: 3px solid rgba(255, 100, 100, 0.5);
}

.comparison-good {
    background: rgba(0, 255, 136, 0.1);
    border-left: 3px solid var(--accent-primary);
}

.comparison-label {
    font-size: 13px;
    font-weight: bold;
    flex-shrink: 0;
    min-width: 120px;
}

.comparison-bad .comparison-label {
    color: rgba(255, 100, 100, 0.9);
}

.comparison-good .comparison-label {
    color: var(--accent-primary);
}

.comparison-text {
    font-size: 12px;
    color: var(--text-primary);
    line-height: 1.6;
    flex: 1;
}

.feature-card-highlight::after {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    border-radius: 12px;
    z-index: -1;
    opacity: 0.3;
    animation: border-glow 3s ease-in-out infinite;
}

@keyframes border-glow {
    0%, 100% {
        opacity: 0.3;
    }
    50% {
        opacity: 0.6;
    }
}

.feature-badge {
    position: absolute;
    top: 15px;
    right: 15px;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    color: var(--bg-primary);
    padding: 4px 12px;
    border-radius: 15px;
    font-size: 11px;
    font-weight: bold;
}

/* 功能区域 */
.features {
    padding: 100px 0;
    background: var(--bg-secondary);
}

.section-title {
    text-align: center;
    font-size: 42px;
    margin-bottom: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
}

.title-line {
    width: 100px;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent-primary), transparent);
}

.title-text {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.features-grid {
    display: flex;
    flex-direction: column;
    gap: 30px;
    width: 100%;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 30px;
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
    width: 100%;
    max-width: 100%;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 255, 136, 0.05), rgba(0, 212, 255, 0.05));
    opacity: 0;
    transition: opacity 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-primary);
    box-shadow: 0 10px 40px rgba(0, 255, 136, 0.2);
}

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

.feature-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.feature-title {
    font-size: 24px;
    margin-bottom: 15px;
    color: var(--accent-primary);
}

.feature-desc {
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.6;
}

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

.feature-list li {
    padding: 8px 0;
    color: var(--text-secondary);
    position: relative;
    padding-left: 20px;
}

.feature-list li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--accent-primary);
}

/* 下载区域 */
.download {
    padding: 100px 0;
    background: var(--bg-primary);
}

.download-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.download-info h3 {
    font-size: 36px;
    margin-bottom: 15px;
    color: var(--accent-primary);
}

.download-desc {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

.download-stats {
    display: flex;
    gap: 40px;
}

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

.stat-value {
    display: block;
    font-size: 32px;
    font-weight: bold;
    color: var(--accent-primary);
    margin-bottom: 5px;
}

.stat-label {
    display: block;
    font-size: 14px;
    color: var(--text-secondary);
}

.download-box {
    display: flex;
    justify-content: center;
}

.download-card {
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: 16px;
    padding: 40px;
    text-align: center;
    transition: all 0.3s;
    width: 100%;
    max-width: 400px;
}

.download-card:hover {
    border-color: var(--accent-primary);
    box-shadow: 0 20px 60px rgba(0, 255, 136, 0.3);
    transform: translateY(-5px);
}

.download-icon {
    font-size: 64px;
    margin-bottom: 20px;
}

.download-card h4 {
    font-size: 24px;
    margin-bottom: 10px;
    color: var(--accent-primary);
}

.file-size {
    color: var(--text-secondary);
    margin-bottom: 30px;
}

.btn-download {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    color: var(--bg-primary);
    padding: 15px 40px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: bold;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    transition: all 0.3s;
}

.btn-download:hover {
    transform: scale(1.05);
    box-shadow: 0 10px 30px var(--glow-color);
}

.download-arrow {
    font-size: 20px;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-5px); }
}

.download-note {
    margin-top: 20px;
    font-size: 12px;
    color: var(--text-secondary);
}

.version-features {
    margin-top: 30px;
    padding: 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
}

.version-features h4 {
    font-size: 18px;
    color: var(--accent-primary);
    margin-bottom: 15px;
}

.version-features ul {
    list-style: none;
    padding-left: 0;
}

.version-features li {
    padding: 8px 0;
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.6;
}

.system-requirements {
    margin: 20px 0;
    padding: 15px;
    background: rgba(0, 255, 136, 0.05);
    border-left: 3px solid var(--accent-primary);
    border-radius: 4px;
    text-align: left;
}

.system-requirements p {
    margin: 5px 0;
    font-size: 13px;
    color: var(--text-secondary);
}

.system-requirements strong {
    color: var(--accent-primary);
}

.download-tips {
    margin-top: 10px;
    font-size: 12px;
    color: var(--accent-secondary);
    font-style: italic;
}

/* 订阅与续费区域 */
.subscription {
    padding: 100px 0;
    background: var(--bg-primary);
    position: relative;
}

.subscription-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 40px;
    margin-top: 50px;
}

.subscription-card {
    background: linear-gradient(135deg, rgba(0, 255, 136, 0.1), rgba(0, 212, 255, 0.1));
    border: 2px solid var(--accent-primary);
    border-radius: 20px;
    padding: 40px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.subscription-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(0, 255, 136, 0.1) 0%, transparent 70%);
    animation: subscription-glow 4s ease-in-out infinite;
}

@keyframes subscription-glow {
    0%, 100% {
        opacity: 0.3;
    }
    50% {
        opacity: 0.6;
    }
}

.subscription-header {
    position: relative;
    z-index: 1;
    margin-bottom: 30px;
}

.subscription-icon {
    font-size: 64px;
    margin-bottom: 20px;
    animation: subscription-bounce 2s ease-in-out infinite;
}

@keyframes subscription-bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

.subscription-title {
    font-size: 28px;
    color: var(--accent-primary);
    margin-bottom: 20px;
    font-weight: bold;
}

.subscription-price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 8px;
    margin-bottom: 30px;
}

.price-amount {
    font-size: 48px;
    font-weight: bold;
    color: var(--accent-primary);
    text-shadow: 0 0 20px rgba(0, 255, 136, 0.5);
}

.price-unit {
    font-size: 20px;
    color: var(--text-secondary);
}

.subscription-features {
    position: relative;
    z-index: 1;
    text-align: left;
}

.subscription-feature-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid rgba(0, 255, 136, 0.2);
}

.subscription-feature-item:last-child {
    border-bottom: none;
}

.feature-check-icon {
    color: var(--accent-primary);
    font-size: 20px;
    font-weight: bold;
    flex-shrink: 0;
}

.feature-text {
    font-size: 15px;
    color: var(--text-primary);
    line-height: 1.6;
}

.subscription-info {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.info-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 30px;
    transition: all 0.3s;
}

.info-card:hover {
    border-color: var(--accent-primary);
    box-shadow: 0 10px 30px rgba(0, 255, 136, 0.2);
    transform: translateY(-3px);
}

.info-icon {
    font-size: 40px;
    margin-bottom: 15px;
}

.info-title {
    font-size: 20px;
    color: var(--accent-primary);
    margin-bottom: 20px;
    font-weight: bold;
}

.info-steps {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-bottom: 20px;
}

.info-step {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 12px 15px;
    background: rgba(0, 255, 136, 0.05);
    border-radius: 8px;
    border-left: 3px solid var(--accent-primary);
}

.step-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    color: var(--bg-primary);
    border-radius: 50%;
    font-weight: bold;
    font-size: 14px;
    flex-shrink: 0;
}

.step-text {
    font-size: 14px;
    color: var(--text-primary);
    line-height: 1.6;
}

.info-note {
    padding: 12px 15px;
    background: rgba(255, 193, 7, 0.1);
    border: 1px solid rgba(255, 193, 7, 0.3);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 13px;
    line-height: 1.6;
    margin-top: 15px;
}

.info-list {
    list-style: none;
    padding-left: 0;
}

.info-list li {
    padding: 10px 0;
    color: var(--text-primary);
    font-size: 14px;
    line-height: 1.8;
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.info-list li::before {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--accent-primary);
    border-radius: 50%;
    margin-top: 8px;
    flex-shrink: 0;
}

/* 响应式设计 */
@media (max-width: 968px) {
    .subscription-content {
        grid-template-columns: 1fr;
    }
}

/* 数据可视化区域 */
.visualization {
    padding: 100px 0;
    background: var(--bg-primary);
    position: relative;
    overflow: hidden;
}

.visualization::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 50%, rgba(0, 255, 136, 0.05) 0%, transparent 50%),
                radial-gradient(circle at 70% 50%, rgba(0, 212, 255, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.section-intro {
    text-align: center;
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 800px;
    margin: 0 auto 60px;
    line-height: 1.8;
}

.charts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.chart-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 30px;
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
}

.chart-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 255, 136, 0.05), rgba(0, 212, 255, 0.05));
    opacity: 0;
    transition: opacity 0.3s;
}

.chart-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-primary);
    box-shadow: 0 15px 50px rgba(0, 255, 136, 0.2);
}

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

.chart-title {
    font-size: 20px;
    color: var(--accent-primary);
    margin-bottom: 20px;
    text-align: center;
    font-weight: bold;
}

.chart-container {
    width: 100%;
    height: 350px;
    margin-bottom: 15px;
    position: relative;
    z-index: 1;
}

.chart-desc {
    text-align: center;
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.6;
}

.visualization-features {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 40px;
    margin-top: 40px;
}

.visualization-features h3 {
    font-size: 28px;
    color: var(--accent-primary);
    text-align: center;
    margin-bottom: 40px;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.features-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.visualization-features .feature-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    padding: 20px;
    background: rgba(0, 255, 136, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    transition: all 0.3s;
}

.visualization-features .feature-item:hover {
    border-color: var(--accent-primary);
    background: rgba(0, 255, 136, 0.1);
    transform: translateX(5px);
}

.visualization-features .feature-icon {
    font-size: 32px;
    flex-shrink: 0;
}

.visualization-features .feature-content h4 {
    font-size: 18px;
    color: var(--accent-primary);
    margin-bottom: 8px;
}

.visualization-features .feature-content p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

/* 视频教程区域 */
.tutorial {
    padding: 100px 0;
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    position: relative;
    overflow: hidden;
}

.tutorial::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 50%, rgba(0, 255, 136, 0.05) 0%, transparent 70%);
    pointer-events: none;
}

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

.tutorial-intro {
    text-align: center;
    margin-bottom: 60px;
}

.tutorial-intro h3 {
    font-size: 32px;
    color: var(--accent-primary);
    margin-bottom: 15px;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.tutorial-intro p {
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

.video-card {
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.video-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 255, 136, 0.1) 0%, rgba(0, 212, 255, 0.1) 100%);
    opacity: 0;
    transition: opacity 0.4s;
    pointer-events: none;
    z-index: 1;
}

.video-card:hover {
    transform: translateY(-8px);
    border-color: var(--accent-primary);
    box-shadow: 0 20px 60px rgba(0, 255, 136, 0.2);
}

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

.video-wrapper {
    position: relative;
    width: 100%;
    padding-top: 56.25%; /* 16:9 宽高比 */
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    overflow: hidden;
}

.video-placeholder {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(26, 26, 46, 0.9) 0%, rgba(22, 33, 62, 0.9) 100%);
    cursor: pointer;
    transition: all 0.3s;
}

.video-card:hover .video-placeholder {
    background: linear-gradient(135deg, rgba(0, 255, 136, 0.1) 0%, rgba(0, 212, 255, 0.1) 100%);
}

.play-button {
    color: var(--accent-primary);
    transition: all 0.3s;
    filter: drop-shadow(0 0 20px rgba(0, 255, 136, 0.5));
}

.video-card:hover .play-button {
    transform: scale(1.1);
    filter: drop-shadow(0 0 30px rgba(0, 255, 136, 0.8));
}

.video-overlay {
    position: absolute;
    bottom: 15px;
    right: 15px;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    padding: 6px 12px;
    border-radius: 6px;
    border: 1px solid rgba(0, 255, 136, 0.3);
}

.video-duration {
    color: var(--text-primary);
    font-size: 13px;
    font-weight: 600;
}

.video-player,
.video-iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

.video-info {
    padding: 25px;
    position: relative;
    z-index: 2;
}

.video-info h4 {
    font-size: 20px;
    color: var(--accent-primary);
    margin-bottom: 10px;
    font-weight: 600;
}

.video-info p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 15px;
}

.video-meta {
    display: flex;
    gap: 20px;
    font-size: 12px;
    color: var(--text-secondary);
    flex-wrap: wrap;
}

.video-views,
.video-date {
    display: flex;
    align-items: center;
    gap: 5px;
}

.tutorial-cta {
    text-align: center;
    padding: 40px 20px;
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: 16px;
    margin-top: 40px;
}

.tutorial-cta p {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

/* 关于区域 */
.about {
    padding: 100px 0;
    background: var(--bg-secondary);
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
}

.about-text h3 {
    font-size: 24px;
    color: var(--accent-primary);
    margin-bottom: 20px;
}

.about-text h4 {
    font-size: 18px;
    color: var(--accent-primary);
    margin: 25px 0 15px 0;
}

.about-text p {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.8;
}

.product-highlights {
    margin-top: 25px;
    padding: 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
}

.product-highlights ul {
    list-style: none;
    padding-left: 0;
    margin-top: 15px;
}

.product-highlights li {
    padding: 10px 0;
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.6;
    border-bottom: 1px solid rgba(42, 42, 62, 0.5);
}

.product-highlights li:last-child {
    border-bottom: none;
}

.contact-info h3 {
    font-size: 24px;
    margin-bottom: 20px;
    color: var(--accent-primary);
}

.contact-item {
    padding: 12px 0;
    border-bottom: 1px solid rgba(42, 42, 62, 0.5);
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.contact-item:last-child {
    border-bottom: none;
}

.contact-label {
    font-size: 14px;
    color: var(--text-secondary);
    font-weight: 500;
}

.contact-value {
    font-size: 15px;
    color: var(--text-primary);
    margin-left: 5px;
}

/* 页脚 */
.footer {
    background: var(--bg-primary);
    border-top: 1px solid var(--border-color);
    padding: 40px 0;
    text-align: center;
}

.footer-content {
    display: flex;
    flex-direction: column;
    gap: 20px;
    align-items: center;
}

.footer-info {
    text-align: center;
}

.footer p {
    color: var(--text-secondary);
    margin-bottom: 5px;
    font-size: 14px;
}

.footer-company {
    font-size: 12px;
    color: var(--text-secondary);
    opacity: 0.8;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 15px;
    align-items: center;
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s;
}

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

/* 移动端菜单按钮 */
.menu-toggle {
    display: none;
    background: transparent;
    border: 2px solid var(--accent-primary);
    color: var(--accent-primary);
    padding: 8px 15px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 20px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hero .container,
    .download-content,
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .video-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .tutorial-intro h3 {
        font-size: 24px;
    }
    
    .tutorial-intro p {
        font-size: 16px;
    }
    
    .video-info {
        padding: 20px;
    }
    
    .video-info h4 {
        font-size: 18px;
    }
    
    .menu-toggle {
        display: block;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        background: rgba(10, 10, 15, 0.98);
        flex-direction: column;
        padding: 20px;
        transition: left 0.3s;
        border-top: 1px solid var(--border-color);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu li {
        width: 100%;
        padding: 15px 0;
        border-bottom: 1px solid var(--border-color);
    }
    
    .hero-title {
        font-size: 36px;
    }
    
    .charts-grid {
        grid-template-columns: 1fr;
    }
    
    .chart-container {
        height: 300px;
    }
    
    .features-list {
        grid-template-columns: 1fr;
    }
    
    .download-stats {
        flex-direction: column;
        gap: 20px;
    }
    
    .highlight-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .highlight-left {
        padding-right: 0;
    }
    
    .highlight-title {
        font-size: 36px;
    }
    
    .highlight-benefits {
        grid-template-columns: 1fr;
    }
    
    .highlight-demo {
        position: relative;
        top: 0;
    }
    
    .cs-window {
        width: calc(100vw - 40px);
        height: calc(100vh - 100px);
        max-width: 100%;
        max-height: 90vh;
        right: 20px;
        bottom: 80px;
    }
}

/* 客服浮窗 */
.customer-service {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 9999;
    font-family: 'Microsoft YaHei', 'Segoe UI', sans-serif;
}

.cs-button {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 4px 20px rgba(0, 255, 136, 0.4);
    transition: all 0.3s;
    position: relative;
    color: var(--bg-primary);
}

.cs-button:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 30px rgba(0, 255, 136, 0.6);
}

.cs-button svg {
    width: 24px;
    height: 24px;
}

.cs-badge {
    position: absolute;
    top: -5px;
    right: -5px;
    background: #ff00ff;
    color: white;
    font-size: 10px;
    padding: 2px 6px;
    border-radius: 10px;
    font-weight: bold;
}

.cs-window {
    position: absolute;
    bottom: 80px;
    right: 0;
    width: 380px;
    height: 600px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    box-shadow: 0 10px 50px rgba(0, 0, 0, 0.5);
    display: none;
    flex-direction: column;
    overflow: hidden;
    animation: slideUp 0.3s ease-out;
}

.cs-window.active {
    display: flex;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.cs-header {
    background: linear-gradient(135deg, rgba(0, 255, 136, 0.1), rgba(0, 212, 255, 0.1));
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.cs-header-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.cs-avatar {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}

.cs-header-info h4 {
    margin: 0;
    color: var(--accent-primary);
    font-size: 16px;
}

.cs-status {
    margin: 0;
    font-size: 12px;
    color: var(--accent-primary);
    position: relative;
    padding-left: 12px;
}

.cs-status::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 8px;
    height: 8px;
    background: var(--accent-primary);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
        box-shadow: 0 0 0 0 rgba(0, 255, 136, 0.7);
    }
    50% {
        opacity: 0.7;
        box-shadow: 0 0 0 8px rgba(0, 255, 136, 0);
    }
}

.cs-close {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 28px;
    cursor: pointer;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.3s;
    line-height: 1;
}

.cs-close:hover {
    background: rgba(255, 0, 0, 0.1);
    color: #ff4444;
    transform: rotate(90deg);
}

.cs-body {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 15px;
    background: var(--bg-secondary);
}

.cs-body::-webkit-scrollbar {
    width: 6px;
}

.cs-body::-webkit-scrollbar-track {
    background: var(--bg-card);
}

.cs-body::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}

.cs-body::-webkit-scrollbar-thumb:hover {
    background: var(--accent-primary);
}

.cs-message {
    display: flex;
    gap: 10px;
    animation: fadeIn 0.3s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.cs-message.cs-user {
    flex-direction: row-reverse;
}

.cs-avatar-small {
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    flex-shrink: 0;
}

.cs-message.cs-user .cs-avatar-small {
    background: linear-gradient(135deg, var(--accent-secondary), var(--accent-tertiary));
}

.cs-message-content {
    max-width: 75%;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 12px 16px;
    position: relative;
}

.cs-message.cs-user .cs-message-content {
    background: linear-gradient(135deg, rgba(0, 255, 136, 0.2), rgba(0, 212, 255, 0.2));
    border-color: var(--accent-primary);
}

.cs-message-content p {
    margin: 0;
    color: var(--text-primary);
    font-size: 14px;
    line-height: 1.6;
    word-wrap: break-word;
}

.cs-time {
    font-size: 11px;
    color: var(--text-secondary);
    margin-top: 5px !important;
    opacity: 0.7;
}

.cs-quick-questions {
    padding: 15px 20px;
    border-top: 1px solid var(--border-color);
    background: var(--bg-card);
}

.cs-quick-title {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 10px;
}

.cs-quick-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.cs-quick-btn {
    background: rgba(0, 255, 136, 0.1);
    border: 1px solid var(--accent-primary);
    color: var(--accent-primary);
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 12px;
    cursor: pointer;
    transition: all 0.3s;
    white-space: nowrap;
}

.cs-quick-btn:hover {
    background: rgba(0, 255, 136, 0.2);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 255, 136, 0.3);
}

.cs-footer {
    padding: 15px 20px;
    border-top: 1px solid var(--border-color);
    background: var(--bg-card);
    display: flex;
    gap: 10px;
    align-items: center;
}

.cs-input {
    flex: 1;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 10px 16px;
    color: var(--text-primary);
    font-size: 14px;
    outline: none;
    transition: all 0.3s;
}

.cs-input:focus {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(0, 255, 136, 0.1);
}

.cs-input::placeholder {
    color: var(--text-secondary);
}

.cs-send {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    border: none;
    border-radius: 50%;
    color: var(--bg-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
    flex-shrink: 0;
}

.cs-send:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 15px rgba(0, 255, 136, 0.4);
}

.cs-send svg {
    width: 18px;
    height: 18px;
}