* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-primary: #0f0f0f;
    --bg-secondary: #1a1a1a;
    --bg-card: #1a1a1a;
    --accent: #10b981;
    --accent-dim: rgba(16, 185, 129, 0.15);
    --accent-blue: #3b82f6;
    --accent-gold: #fbbf24;
    --text-primary: #ffffff;
    --text-secondary: #d4d4d8;
    --border: #2a2a2a;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

html {
    scroll-behavior: smooth;
}

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

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: radial-gradient(ellipse at top, #1a1a1a 0%, #0a0a0a 100%);
}

.hero::before {
    /* 隐藏原网格背景，Galaxy 效果已包含粒子 */
    display: none;
}

/* Galaxy Background Container */
.galaxy-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    opacity: 0;
    transition: opacity 1s ease-in;
}

.galaxy-container.loaded {
    opacity: 1;
}

.galaxy-container canvas {
    display: block;
    width: 100%;
    height: 100%;
}

/* Fallback Background (for non-WebGL browsers) */
.hero-fallback {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(ellipse at top, #1a1a1a 0%, #0a0a0a 100%);
    z-index: 0;
}

/* Hide fallback when WebGL is supported */
body.webgl-supported .hero-fallback {
    opacity: 0;
    transition: opacity 0.5s ease;
}

.hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    padding: 0 24px;
    max-width: 1000px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    background: var(--accent-dim);
    border: 1px solid rgba(0, 255, 136, 0.3);
    border-radius: 100px;
    font-size: 14px;
    font-weight: 600;
    color: var(--accent);
    margin-bottom: 32px;
    letter-spacing: 0.5px;
}

.hero-title {
    font-size: clamp(40px, 8vw, 80px);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.hero-title span {
    color: var(--accent);
}

.hero-subtitle {
    font-size: clamp(20px, 3vw, 28px);
    color: var(--text-secondary);
    margin-bottom: 16px;
    font-weight: 500;
}

.hero-price {
    font-size: clamp(24px, 4vw, 36px);
    color: var(--accent-orange);
    font-weight: 700;
    margin-bottom: 40px;
}

.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 18px 40px;
    background: var(--accent);
    color: #000000;
    font-size: 18px;
    font-weight: 700;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 4px 20px rgba(16, 185, 129, 0.3);
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(16, 185, 129, 0.5);
}

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

.scroll-hint {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
    animation: bounce 2s infinite;
}

.scroll-hint svg {
    width: 32px;
    height: 32px;
    color: var(--text-secondary);
}

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(10px); }
}
/* Section Common */
section {
    padding: 120px 24px;
}

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

.section-header {
    text-align: center;
    margin-bottom: 80px;
}

.section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: var(--accent-dim);
    border-radius: 100px;
    font-size: 14px;
    font-weight: 600;
    color: var(--accent);
    margin-bottom: 20px;
}

.section-title {
    font-size: clamp(32px, 5vw, 48px);
    font-weight: 700;
    margin-bottom: 16px;
}

.section-desc {
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* Features Section */
.features {
    background: var(--bg-primary);
}

/* About Section */
.about {
    background: var(--bg-secondary);
}

.about-content {
    max-width: 900px;
    margin: 0 auto;
}

.about-intro {
    font-size: 18px;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 48px;
    text-align: center;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 24px;
    margin-bottom: 48px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 32px 24px;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    --glow-x: 50%;
    --glow-y: 50%;
    --glow-intensity: 0;
}

.stat-card::after {
    content: '';
    position: absolute;
    inset: 0;
    padding: 2px;
    background: radial-gradient(
        400px circle at var(--glow-x) var(--glow-y),
        rgba(16, 185, 129, calc(var(--glow-intensity) * 0.8)) 0%,
        rgba(16, 185, 129, calc(var(--glow-intensity) * 0.5)) 30%,
        rgba(16, 185, 129, calc(var(--glow-intensity) * 0.3)) 50%,
        transparent 70%
    );
    border-radius: inherit;
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask-composite: exclude;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 1;
}

.stat-card:hover::after {
    opacity: 1;
}

.stat-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(16, 185, 129, 0.4);
}

.stat-number {
    font-size: 36px;
    font-weight: 800;
    color: var(--accent);
    margin-bottom: 8px;
}

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

.about-highlight {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-left: 4px solid var(--accent-gold);
    border-radius: 12px;
    padding: 24px 32px;
    font-size: 16px;
    line-height: 1.7;
    color: var(--text-secondary);
}

.about-highlight strong {
    color: var(--accent-gold);
}

/* Services Section (replaces Features) */
.services {
    background: var(--bg-primary);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.service-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 40px 32px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    --glow-x: 50%;
    --glow-y: 50%;
    --glow-intensity: 0;
}

.service-card::after {
    content: '';
    position: absolute;
    inset: 0;
    padding: 2px;
    background: radial-gradient(
        500px circle at var(--glow-x) var(--glow-y),
        rgba(16, 185, 129, calc(var(--glow-intensity) * 0.8)) 0%,
        rgba(16, 185, 129, calc(var(--glow-intensity) * 0.5)) 30%,
        rgba(16, 185, 129, calc(var(--glow-intensity) * 0.3)) 50%,
        transparent 70%
    );
    border-radius: inherit;
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask-composite: exclude;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 1;
}

.service-card:hover::after {
    opacity: 1;
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(16, 185, 129, 0.4);
}

.service-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-dim);
    border-radius: 14px;
    margin-bottom: 24px;
}

.service-icon svg {
    width: 28px;
    height: 28px;
    color: var(--accent);
}

.service-title {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 12px;
}

.service-desc {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 16px;
}

.service-suitable {
    font-size: 14px;
    color: var(--accent);
    font-weight: 600;
}

/* Advantages Section */
.advantages {
    background: var(--bg-secondary);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.advantage-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 32px 28px;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
    --glow-x: 50%;
    --glow-y: 50%;
    --glow-intensity: 0;
}

.advantage-card::after {
    content: '';
    position: absolute;
    inset: 0;
    padding: 2px;
    background: radial-gradient(
        450px circle at var(--glow-x) var(--glow-y),
        rgba(16, 185, 129, calc(var(--glow-intensity) * 0.8)) 0%,
        rgba(16, 185, 129, calc(var(--glow-intensity) * 0.5)) 30%,
        rgba(16, 185, 129, calc(var(--glow-intensity) * 0.3)) 50%,
        transparent 70%
    );
    border-radius: inherit;
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask-composite: exclude;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 1;
}

.advantage-card:hover::after {
    opacity: 1;
}

.advantage-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(16, 185, 129, 0.4);
}

.advantage-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-dim);
    border-radius: 12px;
    margin-bottom: 20px;
}

.advantage-icon svg {
    width: 24px;
    height: 24px;
    color: var(--accent);
}

.advantage-title {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 10px;
}

.advantage-desc {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Process Section */
.process {
    background: var(--bg-primary);
}

.process-steps {
    max-width: 900px;
    margin: 0 auto;
}

.process-step {
    display: flex;
    gap: 24px;
    margin-bottom: 40px;
    position: relative;
}

.process-step:last-child {
    margin-bottom: 0;
}

.process-step:not(:last-child)::after {
    content: '';
    position: absolute;
    left: 23px;
    top: 56px;
    width: 2px;
    height: calc(100% - 16px);
    background: var(--border);
}

.process-number {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent);
    color: #000000;
    font-size: 20px;
    font-weight: 800;
    border-radius: 50%;
    position: relative;
    z-index: 1;
}

.process-content {
    flex: 1;
    padding-top: 8px;
}

.process-title {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 8px;
}

.process-desc {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Features Section */
.features {
    background: var(--bg-primary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 40px 32px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--accent), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.feature-card:hover {
    border-color: var(--accent);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

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

.feature-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-dim);
    border-radius: 14px;
    margin-bottom: 24px;
}

.feature-icon svg {
    width: 28px;
    height: 28px;
    color: var(--accent);
}

.feature-title {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 12px;
}

.feature-desc {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.7;
}
/* Pricing Section */
.pricing {
    background: var(--bg-secondary);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
    align-items: stretch;
}

.pricing-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 24px;
    padding: 40px 32px;
    position: relative;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-md);
    overflow: visible;
    --glow-x: 50%;
    --glow-y: 50%;
    --glow-intensity: 0;
}

.pricing-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 24px;
    overflow: hidden;
    z-index: 0;
    pointer-events: none;
}

.pricing-card::after {
    content: '';
    position: absolute;
    inset: 0;
    padding: 2px;
    background: radial-gradient(
        500px circle at var(--glow-x) var(--glow-y),
        rgba(16, 185, 129, calc(var(--glow-intensity) * 0.8)) 0%,
        rgba(59, 130, 246, calc(var(--glow-intensity) * 0.6)) 30%,
        rgba(251, 191, 36, calc(var(--glow-intensity) * 0.4)) 50%,
        transparent 70%
    );
    border-radius: inherit;
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask-composite: exclude;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 1;
}

.pricing-card.featured::after {
    --glow-intensity: 0.6;
    opacity: 1;
}

.pricing-card:hover::after {
    opacity: 1;
}

.pricing-card.featured {
    box-shadow: 0 10px 40px rgba(16, 185, 129, 0.2);
}

.pricing-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(16, 185, 129, 0.4);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    right: 24px;
    padding: 6px 16px;
    background: var(--accent);
    color: var(--bg-primary);
    font-size: 12px;
    font-weight: 700;
    border-radius: 100px;
    z-index: 10;
}

.pricing-name {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 8px;
}

.pricing-desc {
    font-size: 15px;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.pricing-price {
    margin-bottom: 32px;
}

.pricing-amount {
    font-size: 48px;
    font-weight: 800;
    color: var(--accent-blue);
}

.pricing-amount span {
    font-size: 20px;
    font-weight: 500;
    color: var(--text-secondary);
}

.pricing-note {
    font-size: 14px;
    color: var(--text-secondary);
    margin-top: 4px;
}

.pricing-note span {
    font-size: 20px;
    font-weight: 500;
    color: var(--accent-blue);
}

.pricing-features {
    list-style: none;
    margin-bottom: 32px;
    flex-grow: 1;
}

.pricing-features li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
    font-size: 15px;
}

.pricing-features li:last-child {
    border-bottom: none;
}

.pricing-features svg {
    width: 20px;
    height: 20px;
    color: var(--accent);
    flex-shrink: 0;
    margin-top: 2px;
}

.pricing-cta {
    width: 100%;
    padding: 16px;
    background: transparent;
    border: 2px solid var(--accent);
    color: var(--accent);
    font-size: 16px;
    font-weight: 600;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    text-align: center;
    display: block;
}

.pricing-cta:hover, .pricing-card.featured .pricing-cta {
    background: var(--accent);
    color: var(--bg-primary);
}

.pricing-card.featured .pricing-cta:hover {
    box-shadow: 0 0 30px rgba(0, 255, 136, 0.4);
}
/* Comparison Section */
.comparison {
    background: var(--bg-primary);
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-card);
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid var(--border);
}

.comparison-table th,
.comparison-table td {
    padding: 20px 24px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.comparison-table th {
    background: var(--bg-secondary);
    font-weight: 600;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
}

.comparison-table th:first-child {
    color: var(--text-primary);
}

.comparison-table td:first-child {
    font-weight: 600;
}

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

.comparison-table .highlight {
    background: rgba(0, 255, 136, 0.08);
}

.comparison-table .highlight td:first-child {
    color: var(--accent);
}

.check-icon {
    color: var(--accent);
}

.cross-icon {
    color: #FF4444;
}

/* Mobile Table */
.comparison-cards {
    display: none;
}

@media (max-width: 768px) {
    .comparison-table {
        display: none;
    }

    .comparison-cards {
        display: flex;
        flex-direction: column;
        gap: 20px;
    }

    .comparison-card {
        background: var(--bg-card);
        border: 1px solid var(--border);
        border-radius: 16px;
        padding: 24px;
    }

    .comparison-card-title {
        font-size: 18px;
        font-weight: 700;
        margin-bottom: 16px;
        padding-bottom: 16px;
        border-bottom: 1px solid var(--border);
    }

    .comparison-card.ours {
        border-color: var(--accent);
    }

    .comparison-card.ours .comparison-card-title {
        color: var(--accent);
    }

    .comparison-item {
        display: flex;
        justify-content: space-between;
        padding: 12px 0;
        border-bottom: 1px solid var(--border);
        font-size: 14px;
    }

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

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

    .comparison-value {
        font-weight: 600;
        text-align: right;
    }
}
/* Contact Section */
.contact {
    background: var(--bg-secondary);
    text-align: center;
}

.contact-box {
    max-width: 600px;
    margin: 0 auto;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 24px;
    padding: 60px 40px;
    position: relative;
    overflow: hidden;
    --glow-x: 50%;
    --glow-y: 50%;
    --glow-intensity: 0.8;
}

.contact-box::after {
    content: '';
    position: absolute;
    inset: 0;
    padding: 2px;
    background: radial-gradient(
        600px circle at var(--glow-x) var(--glow-y),
        rgba(16, 185, 129, calc(var(--glow-intensity) * 0.8)) 0%,
        rgba(59, 130, 246, calc(var(--glow-intensity) * 0.6)) 30%,
        rgba(251, 191, 36, calc(var(--glow-intensity) * 0.4)) 50%,
        transparent 70%
    );
    border-radius: inherit;
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask-composite: exclude;
    pointer-events: none;
    opacity: 1;
    z-index: 1;
}

.contact-icon {
    width: 160px;
    height: 160px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #fff;
    border-radius: 12px;
    margin: 0 auto 32px;
    padding: 8px;
}

.contact-icon svg {
    width: 40px;
    height: 40px;
    color: var(--accent);
}

.contact-title {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 12px;
}

.contact-desc {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.wechat-id {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 16px 32px;
    background: var(--bg-secondary);
    border: 2px solid var(--accent);
    border-radius: 12px;
    font-size: 24px;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 24px;
    transition: all 0.3s ease;
    user-select: none;
}

.wechat-id:hover {
    background: var(--accent-dim);
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(16, 185, 129, 0.3);
}

.wechat-id:active {
    transform: translateY(0);
}

.wechat-id svg {
    width: 28px;
    height: 28px;
}

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

/* Footer */
footer {
    background: var(--bg-primary);
    padding: 60px 24px 40px;
    text-align: center;
    border-top: 1px solid var(--border);
}

.footer-brand {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 16px;
}

.footer-brand span {
    color: var(--accent);
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 32px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s ease;
}

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

.footer-text {
    font-size: 14px;
    color: var(--text-secondary);
}
/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive */
@media (max-width: 768px) {
    section {
        padding: 80px 20px;
    }

    .section-header {
        margin-bottom: 48px;
    }

    .feature-card {
        padding: 32px 24px;
    }

    .pricing-card {
        padding: 32px 24px;
    }

    .contact-box {
        padding: 40px 24px;
    }
}

/* 额度充值提示 */
.pricing-extra {
    text-align: center;
    margin-top: 40px;
    padding: 20px;
    color: var(--text-secondary);
    font-size: 1rem;
}
.pricing-extra a {
    color: var(--accent);
    text-decoration: underline;
    cursor: pointer;
    transition: color 0.3s;
}
.pricing-extra a:hover {
    color: #00cc6a;
}
/* Modal 弹窗 */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    padding: 20px;
    overflow-y: auto;
}
.modal-overlay.active {
    display: flex;
}
.modal-content {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    max-width: 1100px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
}
.modal-header {
    padding: 24px 32px;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    background: var(--bg-card);
    z-index: 10;
}
.modal-title {
    font-size: 1.5rem;
    color: var(--text-primary);
}
.modal-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 2rem;
    cursor: pointer;
    line-height: 1;
    transition: color 0.3s;
}
.modal-close:hover {
    color: var(--accent);
}
.modal-body {
    padding: 24px 32px;
}
.price-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}
.price-table th,
.price-table td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}
.price-table th {
    background: var(--bg-secondary);
    color: var(--accent);
    font-weight: 600;
    white-space: nowrap;
}
.price-table tr:hover {
    background: rgba(0, 255, 136, 0.05);
}
.price-table .model-name {
    color: var(--text-primary);
    font-weight: 500;
}
.price-table .discount {
    color: var(--accent);
    font-weight: 600;
}

@media (max-width: 768px) {
    .modal-body {
        padding: 16px;
    }
    .price-table {
        font-size: 0.75rem;
    }
    .price-table th,
    .price-table td {
        padding: 8px 6px;
    }
}