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

:root {
    --primary: #7c3aed;
    --primary-light: #a78bfa;
    --primary-dark: #5b21b6;
    --secondary: #ec4899;
    --bg-dark: #0f0f23;
    --bg-card: #1a1a2e;
    --bg-hover: #252541;
    --text-primary: #ffffff;
    --text-secondary: #a0a0b8;
    --text-muted: #6b6b8a;
    --border: #2a2a4a;
}

html {
    scroll-behavior: smooth;
}

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

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(15, 15, 35, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(124, 58, 237, 0.1);
    z-index: 1000;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.navbar.scrolled {
    background: rgba(15, 15, 35, 0.98);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
    border-bottom-color: rgba(124, 58, 237, 0.2);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 15px;
    cursor: pointer;
    transition: transform 0.3s;
}

.nav-brand:hover {
    transform: scale(1.05);
}

.nav-brand img {
    width: 45px;
    height: 45px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(124, 58, 237, 0.3);
}

.brand-name {
    font-size: 26px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.5px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 45px;
    align-items: center;
}

.nav-menu li {
    position: relative;
}

.nav-menu a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 15px;
    font-weight: 600;
    transition: all 0.3s;
    position: relative;
    padding: 8px 0;
    display: inline-block;
}

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

.nav-menu a::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    border-radius: 2px;
    transition: width 0.3s ease;
}

.nav-menu a:hover::before,
.nav-menu a.active::before {
    width: 100%;
}

.nav-menu a.active {
    color: var(--primary-light);
}

.nav-btn {
    padding: 12px 32px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    text-decoration: none;
    border-radius: 30px;
    font-size: 15px;
    font-weight: 700;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(124, 58, 237, 0.3);
    position: relative;
    overflow: hidden;
}

.nav-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.nav-btn:hover::before {
    left: 100%;
}

.nav-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(124, 58, 237, 0.5);
}

.nav-btn:active {
    transform: translateY(0);
}

/* 移动端菜单按钮 */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
}

.mobile-menu-btn span {
    width: 28px;
    height: 3px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 2px;
    transition: all 0.3s ease;
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(8px, -8px);
}

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

.nav-btn {
    padding: 10px 24px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    text-decoration: none;
    border-radius: 25px;
    font-size: 14px;
    font-weight: 600;
    transition: transform 0.3s, box-shadow 0.3s;
}

.nav-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(124, 58, 237, 0.4);
}

/* 首页横幅 */
.hero {
    position: relative;
    padding: 150px 0 100px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 50%, rgba(124, 58, 237, 0.15) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(236, 72, 153, 0.15) 0%, transparent 50%);
    z-index: 0;
}

.hero-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content {
    animation: fadeInUp 0.8s ease;
}

.hero-title {
    margin-bottom: 30px;
}

.title-main {
    display: block;
    font-size: 56px;
    font-weight: 800;
    line-height: 1.2;
    background: linear-gradient(135deg, var(--primary-light), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 10px;
}

.title-sub {
    display: block;
    font-size: 32px;
    font-weight: 600;
    color: var(--text-secondary);
}

.hero-desc {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 40px;
    line-height: 1.8;
}

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

.hero-feature-item {
    display: flex;
    flex-direction: column;
}

.feature-num {
    font-size: 32px;
    font-weight: 700;
    color: var(--primary-light);
    margin-bottom: 5px;
}

.feature-text {
    font-size: 14px;
    color: var(--text-muted);
}

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

.btn {
    display: inline-block;
    padding: 16px 40px;
    border-radius: 30px;
    text-decoration: none;
    font-size: 16px;
    font-weight: 600;
    transition: all 0.3s;
    cursor: pointer;
}

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

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 35px rgba(124, 58, 237, 0.4);
}

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

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

/* 查看演示按钮 - 小程序码弹窗 */
.btn-demo-wrapper {
    position: relative;
    display: inline-block;
}

.qrcode-popup {
    position: absolute;
    bottom: calc(100% + 20px);
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 100;
    pointer-events: none;
}

.btn-demo-wrapper:hover .qrcode-popup,
.btn-demo-wrapper:focus-within .qrcode-popup {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
    pointer-events: auto;
}

.qrcode-popup-inner {
    background: white;
    border-radius: 20px;
    padding: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    text-align: center;
    min-width: 200px;
}

.qrcode-img {
    width: 180px;
    height: 180px;
    display: block;
    margin: 0 auto 15px;
    border-radius: 10px;
    background: linear-gradient(135deg, #f5f5f5, #e0e0e0);
}

.qrcode-tip {
    font-size: 14px;
    font-weight: 600;
    color: #333;
    margin: 0;
}

.qrcode-arrow {
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 12px solid transparent;
    border-right: 12px solid transparent;
    border-top: 12px solid white;
    filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.1));
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
    animation: fadeInRight 0.8s ease;
}

.phone-mockup {
    position: relative;
    width: 320px;
    height: 650px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 40px;
    padding: 12px;
    box-shadow: 0 30px 60px rgba(124, 58, 237, 0.3);
    animation: float 3s ease-in-out infinite;
}

.phone-screen {
    width: 100%;
    height: 100%;
    border-radius: 32px;
    object-fit: cover;
    background: white;
}

/* 区块容器 */
.section-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 100px 40px;
}

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

.section-title {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 20px;
    background: linear-gradient(135deg, var(--primary-light), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: 18px;
    color: var(--text-muted);
}

/* 小程序展示 */
.showcase {
    background: var(--bg-card);
}

.showcase-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 50px 40px;
    max-width: 1200px;
    margin: 0 auto;
}

.showcase-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    transition: all 0.3s ease;
}

.showcase-item:hover {
    transform: translateY(-10px);
}

.showcase-item:hover .showcase-phone {
    box-shadow: 0 20px 50px rgba(124, 58, 237, 0.4);
}

.showcase-phone {
    width: 100%;
    max-width: 280px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 30px;
    padding: 8px;
    margin-bottom: 25px;
    box-shadow: 0 15px 35px rgba(124, 58, 237, 0.25);
    transition: all 0.3s ease;
    position: relative;
}

.showcase-phone::before {
    content: '';
    display: block;
    padding-top: 216.67%; /* 19.5/9 = 2.1667 */
}

.showcase-img {
    position: absolute;
    top: 8px;
    left: 8px;
    right: 8px;
    bottom: 8px;
    width: calc(100% - 16px);
    height: calc(100% - 16px);
    border-radius: 24px;
    object-fit: cover;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: block;
}

.showcase-info {
    width: 100%;
}

.showcase-info h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.showcase-info p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.6;
}

/* 功能介绍 */
.features {
    background: var(--bg-dark);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 40px 30px;
    transition: all 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
    box-shadow: 0 15px 35px rgba(124, 58, 237, 0.2);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 25px;
}

.feature-icon svg {
    width: 30px;
    height: 30px;
    color: white;
}

.feature-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 15px;
}

.feature-desc {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* 技术栈 */
.tech-stack {
    background: var(--bg-card);
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.tech-card {
    background: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 40px 30px;
    text-align: center;
    transition: all 0.3s;
}

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

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

.tech-card h4 {
    font-size: 22px;
    color: var(--primary-light);
    margin-bottom: 20px;
}

.tech-card ul {
    list-style: none;
}

.tech-card li {
    font-size: 15px;
    color: var(--text-secondary);
    margin-bottom: 10px;
}

/* 购买套餐 */
.pricing {
    background: var(--bg-dark);
}

.pricing-wrapper {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
    max-width: 1200px;
    margin: 0 auto 60px;
}

.pricing-card {
    background: var(--bg-card);
    border: 2px solid var(--border);
    border-radius: 20px;
    padding: 35px 25px;
    position: relative;
    transition: all 0.3s;
}

.pricing-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(124, 58, 237, 0.2);
}

.pricing-card.featured {
    border-color: var(--primary);
    box-shadow: 0 15px 35px rgba(124, 58, 237, 0.3);
}

.pricing-badge {
    position: absolute;
    top: -15px;
    right: 40px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    padding: 8px 24px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
}

.pricing-header {
    text-align: center;
    margin-bottom: 30px;
}

.pricing-name {
    font-size: 22px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 15px;
}

.pricing-price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 5px;
}

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

.price-value {
    font-size: 44px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-light), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.price-unit {
    font-size: 16px;
    color: var(--text-muted);
}

.pricing-features {
    list-style: none;
    margin-bottom: 30px;
}

.pricing-features li {
    padding: 12px 0;
    color: var(--text-secondary);
    font-size: 14px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 10px;
}

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

.check {
    color: var(--primary-light);
    font-weight: 700;
    font-size: 16px;
}

.pricing-btn {
    display: block;
    width: 100%;
    padding: 14px;
    text-align: center;
    border-radius: 25px;
    text-decoration: none;
    font-size: 15px;
    font-weight: 600;
    background: transparent;
    color: var(--primary-light);
    border: 2px solid var(--primary);
    transition: all 0.3s;
}

.pricing-btn:hover {
    background: var(--primary);
    color: white;
}

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

.pricing-btn.primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(124, 58, 237, 0.4);
}

.pricing-tips {
    text-align: center;
}

.pricing-tips p {
    color: var(--text-muted);
    font-size: 15px;
    margin-bottom: 10px;
}

/* 联系我们 */
.contact {
    background: var(--bg-card);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 80px;
    max-width: 1000px;
    margin: 0 auto;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 25px;
    background: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: 15px;
    transition: all 0.3s;
}

.contact-item:hover {
    border-color: var(--primary);
    transform: translateX(5px);
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    flex-shrink: 0;
}

.contact-detail {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

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

.contact-value {
    font-size: 18px;
    color: var(--text-primary);
    font-weight: 600;
    cursor: pointer;
    transition: color 0.3s;
}

.contact-value:hover {
    color: var(--primary-light);
}

.contact-qrcode {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.qrcode-box {
    width: 280px;
    height: 280px;
    background: white;
    border-radius: 20px;
    padding: 20px;
    box-shadow: 0 15px 35px rgba(124, 58, 237, 0.2);
    margin-bottom: 20px;
}

.qrcode-box img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.qrcode-text {
    font-size: 16px;
    color: var(--text-secondary);
}

/* 页脚 */
.footer {
    background: var(--bg-dark);
    border-top: 1px solid var(--border);
    padding: 40px 0;
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
    text-align: center;
}

.footer-text {
    color: var(--text-muted);
    font-size: 14px;
    margin-bottom: 10px;
}

/* 动画 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

/* 响应式设计 */
@media (max-width: 1200px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 60px;
    }
    
    .hero-image {
        order: -1;
    }
    
    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 60px;
    }
    
    .showcase-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 40px 30px;
    }
}

@media (max-width: 768px) {
    .nav-container {
        padding: 0 20px;
        height: 70px;
    }
    
    .brand-name {
        font-size: 20px;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: rgba(15, 15, 35, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        gap: 0;
        padding: 20px 0;
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
        border-bottom: 1px solid var(--border);
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-menu li {
        width: 100%;
        text-align: center;
        border-bottom: 1px solid var(--border);
    }
    
    .nav-menu li:last-child {
        border-bottom: none;
    }
    
    .nav-menu a {
        display: block;
        padding: 18px 20px;
        font-size: 16px;
    }
    
    .nav-menu a::before {
        display: none;
    }
    
    .nav-btn {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .section-container {
        padding: 60px 20px;
    }
    
    .title-main {
        font-size: 36px;
    }
    
    .title-sub {
        font-size: 24px;
    }
    
    .section-title {
        font-size: 32px;
    }
    
    .hero-features {
        flex-direction: column;
        gap: 20px;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .pricing-wrapper {
        grid-template-columns: 1fr;
    }
    
    .phone-mockup {
        width: 280px;
        height: 570px;
    }
    
    .showcase-grid {
        grid-template-columns: 1fr;
        gap: 50px;
    }
    
    .showcase-phone {
        max-width: 240px;
    }
}


/* 移动端 - 小程序码弹窗优化 */
@media (max-width: 768px) {
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .btn-demo-wrapper {
        width: 100%;
    }
    
    .btn-demo-wrapper .btn {
        width: 100%;
    }
    
    .qrcode-popup {
        bottom: auto;
        top: calc(100% + 20px);
        left: 50%;
        transform: translateX(-50%) translateY(-10px);
    }
    
    .btn-demo-wrapper:hover .qrcode-popup,
    .btn-demo-wrapper:focus-within .qrcode-popup {
        transform: translateX(-50%) translateY(0);
    }
    
    .qrcode-arrow {
        bottom: auto;
        top: -10px;
        border-top: none;
        border-bottom: 12px solid white;
    }
}