/* Hero 区域 */
.hero {
    position: relative;
    display: flex;
    align-items: center;
    padding: 120px 0 64px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, 
        rgba(var(--color-primary-rgb), 0.08) 0%, 
        rgba(var(--color-primary-rgb), 0.05) 50%,
        rgba(var(--color-primary-rgb), 0.02) 100%);
    z-index: 0;
}

.hero-bg::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(var(--color-primary-rgb), 0.1) 0%, transparent 70%);
    border-radius: 50%;
}

.hero-container {
    position: relative;
    z-index: 1;
    max-width: var(--layout-container-width);
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    background: rgba(var(--color-primary-rgb), 0.1);
    border-radius: 100px;
    color: var(--color-primary);
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 35px;
    width: fit-content;
}

.hero-title {
    font-size: 56px;
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: 50px;
    color: var(--color-text-color);
}

.hero-subtitle {
    font-size: 24px;
    font-weight: 400;
    color: var(--color-text-color-secondary);
    margin-bottom: 30px;
}

.hero-desc {
    font-size: var(--typo-font-size-large);
    color: var(--color-info);
    max-width: 480px;
    margin-bottom: 50px;
    line-height: 1.6;
}

.hero-actions {
    display: flex;
    gap: 12px;
    margin-bottom: 40px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: var(--layout-border-radius);
    font-size: var(--typo-font-size-base);
    font-weight: 500;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: all var(--effect-transition-fast);
}

.btn-primary {
    background: var(--color-primary);
    color: #ffffff;
}

.btn-primary:hover {
    background: var(--color-primary);
    filter: brightness(0.9);
}

.btn-secondary {
    background: var(--color-card-bg);
    color: var(--color-text-color);
    border: 1px solid var(--color-border-color);
}

.btn-secondary:hover {
    background: var(--color-bg-color);
    border-color: var(--color-info);
}

.hero-stats {
    display: flex;
    gap: 32px;
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--color-text-color);
    line-height: 1.2;
}

.stat-label {
    font-size: 13px;
    color: var(--color-info);
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-card {
    width: 450px;
    height: 800px;
    background: var(--color-card-bg);
    backdrop-filter: blur(var(--effect-backdrop-blur));
    -webkit-backdrop-filter: blur(var(--effect-backdrop-blur));
    border-radius: calc(var(--layout-border-radius) * 2);
    border: 1px solid var(--color-border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px;
    overflow: hidden;
}

.demo-iframe-wrapper {
    width: 100%;
    height: 100%;
    overflow: hidden;
    background: var(--color-card-bg);
    position: relative;
}

.demo-iframe-wrapper iframe {
    width: 100%;
    height: 100%;
    border: none;
    transform-origin: top left;
    position: absolute;
    top: 0;
    left: 0;
}

/* 区块标题 */
.section-header {
    text-align: center;
    margin-bottom: 48px;
}

.section-header.left {
    text-align: left;
}

.section-title {
    font-size: 32px;
    font-weight: 600;
    color: var(--color-text-color);
    margin-bottom: 8px;
    letter-spacing: -0.01em;
}

.section-desc {
    font-size: 15px;
    color: var(--color-text-color-secondary);
}

/* 功能特性 */
.features {
    padding: var(--layout-section-padding) 0;
    background: var(--color-card-bg);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--layout-grid-gap);
}

.feature-card {
    background: var(--color-card-bg);
    border: 1px solid var(--color-border-color);
    border-radius: calc(var(--layout-border-radius) * 1.5);
    padding: var(--layout-card-padding);
    transition: all var(--effect-transition-normal);
}

.feature-card:hover {
    box-shadow: var(--effect-shadow-card-hover);
    border-color: var(--color-border-color);
    transform: translateY(-2px);
}

.feature-icon {
    width: 48px;
    height: 48px;
    background: rgba(var(--color-primary-rgb), 0.1);
    border-radius: var(--layout-border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: var(--color-primary);
    margin-bottom: 16px;
}

.feature-card h3 {
    font-size: var(--typo-font-size-large);
    font-weight: 600;
    color: var(--color-text-color);
    margin-bottom: 8px;
}

.feature-card p {
    font-size: var(--typo-font-size-base);
    color: var(--color-text-color-secondary);
    line-height: 1.5;
}

/* 下载安装 */
.download {
    padding: var(--layout-section-padding) 0;
    background: var(--color-bg-color);
}

.download-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--layout-grid-gap);
}

.download-card {
    background: var(--color-card-bg);
    border: 1px solid var(--color-border-color);
    border-radius: calc(var(--layout-border-radius) * 1.5);
    padding: var(--layout-card-padding);
    text-align: center;
    transition: all var(--effect-transition-normal);
}

.download-card:hover {
    box-shadow: var(--effect-shadow-card-hover);
    border-color: var(--color-border-color);
    transform: translateY(-2px);
}

.download-icon {
    width: 56px;
    height: 56px;
    background: rgba(var(--color-primary-rgb), 0.1);
    border-radius: var(--layout-border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: var(--color-primary);
    margin: 0 auto 16px;
}

.download-card h3 {
    font-size: var(--typo-font-size-large);
    font-weight: 600;
    color: var(--color-text-color);
    margin-bottom: 4px;
}

.download-card > p {
    font-size: var(--typo-font-size-small);
    color: var(--color-info);
    margin-bottom: 16px;
}

.qr-box {
    width: 120px;
    height: 120px;
    background: var(--color-card-bg);
    border: 1px solid var(--color-border-color);
    border-radius: var(--layout-border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    color: var(--color-info);
    font-size: 48px;
}

/* 开源共建 */
.opensource {
    padding: var(--layout-section-padding) 0;
    background: var(--color-card-bg);
}

.opensource-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 64px;
    align-items: center;
}

.opensource-text {
    font-size: 15px;
    color: var(--color-text-color-secondary);
    line-height: 1.6;
    margin-bottom: 24px;
}

.opensource-actions {
    display: flex;
    gap: 12px;
}

.opensource-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--layout-grid-gap);
}

.stat-card {
    background: var(--color-card-bg);
    border: 1px solid var(--color-border-color);
    border-radius: calc(var(--layout-border-radius) * 1.5);
    padding: 20px;
    text-align: center;
}

.stat-num {
    display: block;
    font-size: 28px;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1.2;
}

.stat-name {
    font-size: 13px;
    color: var(--color-info);
}

/* 支持我们 */
.support {
    padding: var(--layout-section-padding) 0;
    background: var(--color-bg-color);
}

.support-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

.support-card {
    background: var(--color-card-bg);
    border: 1px solid var(--color-border-color);
    border-radius: calc(var(--layout-border-radius) * 1.5);
    padding: 32px;
}

.support-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, #ec4899, #f43f5e);
    border-radius: var(--layout-border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: white;
    margin-bottom: 20px;
}

.support-card h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--color-text-color);
    margin-bottom: 12px;
}

.support-card p {
    font-size: 15px;
    color: var(--color-text-color-secondary);
    line-height: 1.6;
}

.payment-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--layout-grid-gap);
}

.payment-card {
    background: var(--color-card-bg);
    border: 1px solid var(--color-border-color);
    border-radius: calc(var(--layout-border-radius) * 1.5);
    padding: 24px;
    text-align: center;
    transition: all var(--effect-transition-normal);
}

.payment-card:hover {
    box-shadow: var(--effect-shadow-card-hover);
}

.payment-qr {
    width: 100%;
    aspect-ratio: 1;
    background: var(--color-card-bg);
    border: 1px solid var(--color-border-color);
    border-radius: var(--layout-border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 12px;
    color: var(--color-info);
    font-size: 64px;
}

.payment-qr img {
    width: 200px;
}

.payment-card span {
    font-size: var(--typo-font-size-base);
    color: var(--color-text-color-secondary);
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 48px;
    }
    
    .hero-badge {
        margin: 0 auto 20px;
    }
    
    .hero-desc {
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .hero-card {
        width: 280px;
        height: 560px;
        padding: 12px;
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .opensource-content,
    .support-content {
        grid-template-columns: 1fr;
        gap: 48px;
    }
    
    .opensource-stats {
        order: -1;
    }
    
    .download-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {    
    .hero {
        padding: 100px 0 48px;
    }
    
    .hero-title {
        font-size: 36px;
    }
    
    .hero-subtitle {
        font-size: 18px;
    }
    
    .hero-card {
        width: 260px;
        height: 520px;
        padding: 10px;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .features-grid,
    .download-grid {
        grid-template-columns: 1fr;
    }
    
    .opensource-stats {
        grid-template-columns: 1fr;
    }
    
    .payment-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {    
    .hero-title {
        font-size: 32px;
    }
    
    .hero-actions {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
    
    .hero-stats {
        gap: 24px;
    }
    
    .feature-card,
    .download-card,
    .support-card,
    .payment-card {
        padding: 20px;
    }
    
    .hero-card {
        width: 220px;
        height: 440px;
        padding: 8px;
    }
}