/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    color: #1a1a1a;
    line-height: 1.6;
    background: #fff;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* 顶部导航 */
.header {
    padding: 20px 0;
    border-bottom: 1px solid #eee;
    background: #fff;
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    font-size: 20px;
    font-weight: 600;
    color: #1a1a1a;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 24px;
}

.nav-link {
    color: #666;
    text-decoration: none;
    font-size: 15px;
    transition: color 0.2s;
}

.nav-link:hover {
    color: #1a1a1a;
}

.nav-btn {
    padding: 8px 20px;
    background: #1a1a1a;
    color: #fff;
    text-decoration: none;
    border-radius: 6px;
    font-size: 15px;
    transition: all 0.2s;
}

.nav-btn:hover {
    background: #333;
    transform: translateY(-1px);
}

/* 主视觉区 */
.hero {
    padding: 80px 0 100px;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1.3fr;
    gap: 60px;
    align-items: center;
}

.hero-title {
    font-size: 52px;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 24px;
    color: #1a1a1a;
}

.hero-desc {
    font-size: 18px;
    color: #666;
    line-height: 1.8;
    margin-bottom: 32px;
}

.hero-stats {
    display: flex;
    gap: 32px;
    margin-bottom: 40px;
    padding: 24px 0;
    border-top: 1px solid #eee;
    border-bottom: 1px solid #eee;
}

.stat-box {
    display: flex;
    flex-direction: column;
    gap: 4px;
    align-items: center;
    text-align: center;
}

.stat-box strong {
    font-size: 32px;
    font-weight: 700;
    color: #1a1a1a;
}

.stat-box span {
    font-size: 14px;
    color: #999;
}

/* 价格展示 */
.pricing-highlight {
    padding: 40px;
    border: 1px solid #eee;
    border-radius: 12px;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
    margin-bottom: 32px;
}

.pricing-highlight:hover {
    border-color: #ddd;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
    transform: translateY(-4px);
}

.pricing-left {
    display: flex;
    align-items: center;
    gap: 20px;
}

.pricing-icon {
    font-size: 48px;
    color: #1a1a1a;
}

.pricing-info h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 8px;
    color: #1a1a1a;
}

.pricing-info p {
    font-size: 15px;
    color: #666;
    line-height: 1.6;
}

.pricing-right {
    display: flex;
    align-items: baseline;
    gap: 8px;
    flex-shrink: 0;
}

.price {
    font-size: 48px;
    font-weight: 700;
    color: #1a1a1a;
    line-height: 1;
}

.period {
    font-size: 20px;
    color: #666;
    font-weight: 400;
}

.hero-actions {
    display: flex;
    gap: 16px;
}

.btn-primary {
    padding: 14px 32px;
    background: #1a1a1a;
    color: #fff;
    text-decoration: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 500;
    transition: all 0.2s;
    display: inline-block;
}

.btn-primary:hover {
    background: #333;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.btn-secondary {
    padding: 14px 32px;
    background: #fff;
    color: #1a1a1a;
    text-decoration: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 500;
    border: 1px solid #ddd;
    transition: all 0.2s;
    display: inline-block;
}

.btn-secondary:hover {
    border-color: #1a1a1a;
    transform: translateY(-2px);
}

/* 视觉展示区 */
.hero-visual {
    position: relative;
    background: transparent;
}

.hero-visual-desktop {
    display: block;
}

.hero-img {
    width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: none;
    transition: all 0.3s;
    cursor: pointer;
    background: transparent;
}

.hero-img:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

/* 功能特性 */
.features {
    padding: 40px 0 100px;
    background: #fff;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 40px;
    font-weight: 700;
    margin-bottom: 12px;
    color: #1a1a1a;
}

.section-header p {
    font-size: 18px;
    color: #666;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.feature-item {
    padding: 32px;
    border: 1px solid #eee;
    border-radius: 12px;
    transition: all 0.3s;
}

.feature-item:hover {
    border-color: #ddd;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
    transform: translateY(-4px);
}

.feature-icon {
    font-size: 48px;
    margin-bottom: 20px;
    color: #1a1a1a;
}

.feature-item h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
    color: #1a1a1a;
}

.feature-item p {
    font-size: 15px;
    color: #666;
    line-height: 1.6;
}

/* 产品展示 */
.showcase {
    padding: 100px 0;
    background: #fafafa;
}

.showcase-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.showcase-item {
    cursor: pointer;
    transition: all 0.3s;
}

.showcase-image-wrapper {
    position: relative;
    overflow: hidden;
    border-radius: 12px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
    margin-bottom: 16px;
}

.showcase-image-wrapper img {
    width: 100%;
    display: block;
    transition: all 0.3s;
}

.showcase-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.75);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: all 0.3s;
}

.showcase-item:hover .showcase-overlay {
    opacity: 1;
}

.showcase-item:hover .showcase-image-wrapper {
    transform: translateY(-4px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12);
}

.showcase-item:hover .showcase-image-wrapper img {
    transform: scale(1.05);
}

.showcase-text {
    color: #fff;
    font-size: 16px;
    font-weight: 500;
    letter-spacing: 0.5px;
}

.showcase-caption {
    text-align: center;
    padding: 0 12px;
}

.showcase-caption h4 {
    font-size: 16px;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 4px;
}

.showcase-caption p {
    font-size: 14px;
    color: #666;
    line-height: 1.5;
}

/* 使用步骤 */
.steps {
    padding: 100px 0;
    background: #fff;
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
}

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

.step-num {
    font-size: 48px;
    font-weight: 700;
    color: #eee;
    margin-bottom: 20px;
}

.step-item h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
    color: #1a1a1a;
}

.step-item p {
    font-size: 15px;
    color: #666;
    line-height: 1.6;
}

/* 页脚 */
.footer {
    padding: 50px 0 30px;
    background: #fafafa;
    border-top: 1px solid #eee;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 1px solid #eee;
}

.footer-brand {
    display: flex;
    align-items: center;
    font-size: 18px;
    font-weight: 600;
    color: #1a1a1a;
}

.footer-links {
    display: flex;
    gap: 24px;
}

.footer-links a {
    color: #666;
    text-decoration: none;
    font-size: 15px;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 6px;
}

.footer-links a:hover {
    color: #1a1a1a;
}

.footer-links a i {
    font-size: 18px;
}

.footer-copy {
    text-align: center;
    color: #999;
    font-size: 14px;
}

.footer-copy p {
    margin: 8px 0;
}

.footer-desc {
    color: #bbb;
    font-size: 13px;
}

/* 图片灯箱 */
.lightbox {
    display: none;
    position: fixed;
    z-index: 9999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

.lightbox img {
    max-width: 90%;
    max-height: 90vh;
    border-radius: 8px;
    box-shadow: 0 10px 50px rgba(0, 0, 0, 0.5);
    animation: zoomIn 0.3s;
}

@keyframes zoomIn {
    from {
        transform: scale(0.8);
        opacity: 0;
    }

    to {
        transform: scale(1);
        opacity: 1;
    }
}

.lightbox-close {
    position: absolute;
    top: 20px;
    right: 40px;
    color: #fff;
    font-size: 50px;
    font-weight: 300;
    cursor: pointer;
    transition: all 0.2s;
    z-index: 10000;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

.lightbox-close:hover {
    color: #ccc;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
}

.lightbox-prev,
.lightbox-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    color: #fff;
    font-size: 40px;
    font-weight: bold;
    cursor: pointer;
    padding: 20px;
    user-select: none;
    transition: all 0.2s;
    z-index: 10000;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 4px;
}

.lightbox-prev:hover,
.lightbox-next:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.2);
}

.lightbox-prev {
    left: 20px;
}

.lightbox-next {
    right: 20px;
}

.lightbox-counter {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    color: #fff;
    font-size: 16px;
    background: rgba(0, 0, 0, 0.6);
    padding: 10px 20px;
    border-radius: 20px;
    backdrop-filter: blur(10px);
}

/* 响应式设计 */
@media (max-width: 968px) {
    .hero {
        padding: 60px 0 80px;
    }

    .hero-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .hero-visual-desktop {
        display: block;
        order: -1;
    }

    .hero-text {
        order: 1;
    }

    .hero-img {
        box-shadow: none;
    }

    .hero-title {
        font-size: 36px;
    }

    .hero-desc {
        font-size: 16px;
    }

    .features {
        padding: 20px 0 80px;
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .feature-item {
        padding: 24px;
    }

    .showcase {
        padding: 80px 0;
    }

    .showcase-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .showcase-image-wrapper {
        margin-bottom: 12px;
    }

    .showcase-caption h4 {
        font-size: 15px;
    }

    .showcase-caption p {
        font-size: 13px;
    }

    .steps {
        padding: 80px 0;
    }

    .steps-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }


}

@media (max-width: 640px) {
    .container {
        padding: 0 16px;
    }

    .header {
        padding: 16px 0;
    }

    .logo {
        font-size: 18px;
    }

    .nav-menu {
        gap: 12px;
    }

    .nav-link {
        font-size: 14px;
    }

    .nav-btn {
        padding: 6px 16px;
        font-size: 14px;
    }

    .hero {
        padding: 40px 0 60px;
    }

    .hero-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .hero-visual-desktop {
        display: block;
        order: -1;
    }

    .hero-text {
        order: 1;
    }

    .hero-title {
        font-size: 32px;
        margin-bottom: 16px;
    }

    .hero-desc {
        font-size: 16px;
        margin-bottom: 24px;
    }

    .hero-stats {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 16px;
        padding: 20px 0;
        margin-bottom: 30px;
        border-top: 1px solid #eee;
        border-bottom: 1px solid #eee;
    }

    .stat-box {
        min-width: auto;
    }

    .stat-box strong {
        font-size: 24px;
    }

    .stat-box span {
        font-size: 12px;
    }

    .pricing-highlight {
        padding: 24px;
        margin-bottom: 20px;
        flex-direction: column;
        align-items: flex-start;
        gap: 20px;
    }

    .pricing-left {
        gap: 16px;
    }

    .pricing-icon {
        font-size: 40px;
    }

    .pricing-info h3 {
        font-size: 18px;
        margin-bottom: 6px;
    }

    .pricing-info p {
        font-size: 14px;
    }

    .pricing-right {
        width: 100%;
        justify-content: center;
        padding-top: 16px;
        border-top: 1px solid #eee;
    }

    .price {
        font-size: 36px;
    }

    .period {
        font-size: 18px;
    }

    .hero-actions {
        display: flex;
        flex-direction: row;
        gap: 12px;
    }

    .btn-primary,
    .btn-secondary {
        text-align: center;
        flex: 1;
        padding: 12px 20px;
        font-size: 15px;
    }

    .features {
        padding: 60px 0;
    }

    .section-header {
        margin-bottom: 32px;
    }

    .section-header h2 {
        font-size: 28px;
        margin-bottom: 8px;
    }

    .section-header p {
        font-size: 15px;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .feature-item {
        padding: 20px;
    }

    .feature-icon {
        font-size: 40px;
        margin-bottom: 16px;
        color: #1a1a1a;
    }

    .feature-item h3 {
        font-size: 18px;
    }

    .feature-item p {
        font-size: 14px;
    }

    .showcase {
        padding: 60px 0;
    }

    .showcase-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .showcase-image-wrapper {
        border-radius: 8px;
        margin-bottom: 12px;
    }

    .showcase-caption {
        padding: 0 8px;
    }

    .showcase-caption h4 {
        font-size: 15px;
        margin-bottom: 4px;
    }

    .showcase-caption p {
        font-size: 13px;
    }

    .lightbox img {
        max-width: 95%;
        max-height: 85vh;
    }

    .lightbox-close {
        top: 10px;
        right: 10px;
        font-size: 40px;
        width: 40px;
        height: 40px;
    }

    .lightbox-prev,
    .lightbox-next {
        font-size: 30px;
        padding: 15px;
        background: rgba(0, 0, 0, 0.5);
    }

    .lightbox-prev {
        left: 10px;
    }

    .lightbox-next {
        right: 10px;
    }

    .lightbox-counter {
        bottom: 20px;
        font-size: 14px;
        padding: 8px 16px;
    }

    .steps {
        padding: 60px 0;
    }

    .steps-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .step-num {
        font-size: 36px;
        margin-bottom: 16px;
    }

    .step-item h3 {
        font-size: 18px;
    }

    .step-item p {
        font-size: 14px;
    }

    .footer {
        padding: 40px 0 24px;
    }

    .footer-content {
        flex-direction: column;
        gap: 16px;
        text-align: center;
        margin-bottom: 16px;
        padding-bottom: 16px;
    }

    .footer-brand {
        font-size: 16px;
    }

    .footer-links {
        gap: 12px;
        flex-direction: row;
    }

    .footer-links a {
        font-size: 13px;
        justify-content: center;
    }

    .footer-links a i {
        font-size: 16px;
    }

    .footer-copy {
        font-size: 12px;
    }

    .footer-copy p {
        margin: 4px 0;
    }

    .footer-desc {
        font-size: 11px;
    }
}