/* 基础样式重置 */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --secondary-color: #ec4899;
    --accent-color: #06b6d4;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-light: #94a3b8;
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-dark: #0f172a;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
}

html {
    scroll-behavior: smooth;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 4rem;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    transition: width 0.3s ease;
}

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

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

.nav-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* 语言切换器 */
.language-switcher {
    position: relative;
}

.lang-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    cursor: pointer;
    font-weight: 500;
    color: var(--text-primary);
    transition: all 0.3s ease;
}

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

.lang-icon {
    width: 18px;
    height: 18px;
    color: var(--primary-color);
}

.current-lang {
    font-size: 0.875rem;
}

.dropdown-icon {
    width: 14px;
    height: 14px;
    transition: transform 0.3s ease;
}

.lang-btn.active .dropdown-icon {
    transform: rotate(180deg);
}

.lang-dropdown {
    position: absolute;
    top: calc(100% + 0.5rem);
    right: 0;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    min-width: 120px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 1001;
    overflow: hidden;
}

.lang-dropdown.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lang-option {
    display: block;
    width: 100%;
    padding: 0.75rem 1rem;
    border: none;
    background: none;
    text-align: left;
    cursor: pointer;
    font-size: 0.875rem;
    color: var(--text-primary);
    transition: all 0.2s ease;
}

.lang-option:hover {
    background: var(--bg-secondary);
}

.lang-option.active {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(236, 72, 153, 0.1));
    color: var(--primary-color);
    font-weight: 600;
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 2px;
    background-color: var(--text-primary);
    transition: all 0.3s ease;
}

/* Hero 区域 */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 4rem;
    background: linear-gradient(135deg, #f8fafc 0%, #e0e7ff 50%, #fce7f3 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.1) 0%, transparent 70%);
    border-radius: 50%;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(236, 72, 153, 0.1) 0%, transparent 70%);
    border-radius: 50%;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

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

.hero-description {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    border-radius: var(--radius-lg);
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    box-shadow: 0 4px 14px 0 rgba(99, 102, 241, 0.39);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.23);
}

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

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

.btn-small {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.icon {
    width: 20px;
    height: 20px;
}

/* 手机 mockup */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.phone-mockup {
    width: 286px;
    height: 620px;
    background: linear-gradient(145deg, #1e293b, #0f172a);
    border-radius: 40px;
    padding: 12px;
    box-shadow: 
        0 25px 50px -12px rgba(0, 0, 0, 0.25),
        0 0 0 1px rgba(255, 255, 255, 0.1) inset;
    position: relative;
}

.phone-mockup::before {
    display: none;
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: #000;
    border-radius: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.app-icon-large {
    width: 120px;
    height: 120px;
    background: white;
    border-radius: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.app-icon-large span {
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* 滚动指示器 */
.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
}

.mouse {
    width: 26px;
    height: 40px;
    border: 2px solid var(--text-light);
    border-radius: 13px;
    position: relative;
}

.mouse::before {
    content: '';
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background: var(--text-light);
    border-radius: 2px;
    animation: scroll 1.5s ease-in-out infinite;
}

@keyframes scroll {
    0%, 100% { opacity: 1; transform: translateX(-50%) translateY(0); }
    50% { opacity: 0.3; transform: translateX(-50%) translateY(8px); }
}

/* 通用 section 样式 */
.section-tag {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(236, 72, 153, 0.1));
    color: var(--primary-color);
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    margin-bottom: 1rem;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.section-header p {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* 产品区域 */
.products {
    padding: 6rem 0;
    background: var(--bg-secondary);
}

.product-category {
    margin-bottom: 4rem;
}

.featured-products-list {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.category-title {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 2rem;
    color: var(--text-primary);
}

.category-icon {
    width: 28px;
    height: 28px;
    color: var(--primary-color);
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.product-card {
    background: white;
    border-radius: var(--radius-xl);
    padding: 2rem;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    position: relative;
    border: 1px solid var(--border-color);
}

.product-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.product-card.featured {
    border: 2px solid var(--primary-color);
}

.product-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
}

.product-icon {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.product-icon svg {
    width: 32px;
    height: 32px;
    color: white;
}

.product-icon.parking {
    background: linear-gradient(135deg, #f59e0b, #d97706);
}

.product-icon.tip {
    background: linear-gradient(135deg, #10b981, #059669);
}

.product-icon.voice {
    background: linear-gradient(135deg, #8b5cf6, #7c3aed);
}

.product-icon.password {
    background: linear-gradient(135deg, #06b6d4, #0891b2);
}

.product-icon.rv {
    background: linear-gradient(135deg, #f59e0b, #d97706);
}

.product-card h4 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.product-desc {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    line-height: 1.7;
    margin-bottom: 1.25rem;
}

.product-tagline {
    font-size: 1rem;
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 1rem;
    letter-spacing: 0.01em;
}

.product-features {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.feature-tag {
    padding: 0.375rem 0.75rem;
    background: var(--bg-secondary);
    color: var(--text-secondary);
    font-size: 0.8125rem;
    font-weight: 500;
    border-radius: var(--radius-full);
}

.product-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 1.25rem;
    border-top: 1px solid var(--border-color);
}

.price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.price small {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-light);
}

/* 即将推出 */
.coming-soon {
    background: linear-gradient(135deg, var(--bg-dark), #1e293b);
    border-radius: var(--radius-2xl);
    padding: 3rem;
    text-align: center;
    color: white;
    margin-top: 3rem;
}

.rocket-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.coming-soon h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--accent-color);
    margin-bottom: 0.5rem;
}

.coming-soon h4 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.coming-soon p {
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

/* 关于区域 */
.about {
    padding: 6rem 0;
    background: white;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-content h2 {
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.about-content > p {
    color: var(--text-secondary);
    font-size: 1.125rem;
    line-height: 1.8;
    margin-bottom: 2rem;
}

.about-features {
    list-style: none;
}

.about-features li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
    font-weight: 500;
}

.about-features svg {
    width: 24px;
    height: 24px;
    color: var(--primary-color);
    flex-shrink: 0;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.stat-card {
    background: var(--bg-secondary);
    padding: 2rem;
    border-radius: var(--radius-xl);
    text-align: center;
    transition: all 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--text-secondary);
    font-weight: 500;
}

/* 联系区域 */
.contact {
    padding: 6rem 0;
    background: linear-gradient(135deg, #f8fafc 0%, #e0e7ff 100%);
}

.contact-content {
    text-align: center;
}

.contact-content h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.contact-content > p {
    color: var(--text-secondary);
    font-size: 1.125rem;
    margin-bottom: 3rem;
}

.contact-methods {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    max-width: 900px;
    margin: 0 auto;
}

.contact-card {
    background: white;
    padding: 2rem;
    border-radius: var(--radius-xl);
    text-decoration: none;
    color: inherit;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.contact-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.contact-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(236, 72, 153, 0.1));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.25rem;
}

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

.contact-card h4 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.contact-card p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
}

/* 页脚 */
.footer {
    background: var(--bg-dark);
    color: white;
    padding: 3rem 0 1.5rem;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 2rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    margin-bottom: 1.5rem;
}

.footer-brand .logo {
    background: linear-gradient(135deg, #818cf8, #f472b6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 1.5rem;
}

.footer-brand p {
    color: var(--text-light);
    margin-top: 0.5rem;
}

.footer-links {
    display: flex;
    gap: 2rem;
}

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

.footer-links a:hover {
    color: white;
}

.footer-bottom {
    text-align: center;
    color: var(--text-light);
    font-size: 0.875rem;
}

/* 响应式设计 */
@media (max-width: 968px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-content h1 {
        font-size: 2.5rem;
    }

    .hero-buttons {
        justify-content: center;
    }

    .hero-visual {
        order: -1;
    }

    .phone-mockup {
        width: 240px;
        height: 480px;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .about-stats {
        order: -1;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 4rem;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 2rem;
        gap: 1.5rem;
        box-shadow: var(--shadow-lg);
        transform: translateY(-150%);
        transition: transform 0.3s ease;
    }

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

    .hamburger {
        display: flex;
    }

    .hamburger.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    .section-header h2 {
        font-size: 2rem;
    }

    .about-content h2 {
        font-size: 2rem;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
        gap: 1.5rem;
    }

    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 2rem;
    }

    .hero-description {
        font-size: 1rem;
    }

    .product-grid {
        grid-template-columns: 1fr;
    }

    .about-stats {
        grid-template-columns: 1fr 1fr;
    }

    .stat-card {
        padding: 1.5rem;
    }

    .stat-number {
        font-size: 1.75rem;
    }
}

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

.product-card,
.stat-card,
.contact-card {
    animation: fadeInUp 0.6s ease forwards;
}

/* Hero Badge */
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(236, 72, 153, 0.1));
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.badge-icon {
    font-size: 1rem;
}

/* Hero Stats */
.hero-stats {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-top: 2.5rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
}

.hero-stat {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--primary-color);
    line-height: 1;
}

.stat-text {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

.hero-stat-divider {
    width: 1px;
    height: 40px;
    background: rgba(0, 0, 0, 0.1);
}

/* App Screenshots Preview */
.app-screenshots {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
}

.screenshot-preview {
    background: rgba(255, 255, 255, 0.95);
    border-radius: var(--radius-lg);
    padding: 0.75rem 1rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.screen-content {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.preview-icon {
    font-size: 1.25rem;
}

.preview-text {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* Why Us Section */
.why-us {
    padding: 6rem 0;
    background: white;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.feature-card {
    padding: 2rem;
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    text-align: center;
    transition: all 0.3s ease;
}

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

.feature-icon-wrapper {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.25rem;
}

.feature-icon-wrapper svg {
    width: 28px;
    height: 28px;
    color: white;
}

.feature-icon-wrapper.blue {
    background: linear-gradient(135deg, #3b82f6, #06b6d4);
}

.feature-icon-wrapper.green {
    background: linear-gradient(135deg, #10b981, #84cc16);
}

.feature-icon-wrapper.purple {
    background: linear-gradient(135deg, #8b5cf6, #ec4899);
}

.feature-card h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.feature-card p {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Featured Product - New Layout */
.featured-product {
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: 2.5rem;
    align-items: center;
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    border-radius: var(--radius-2xl);
    padding: 2.5rem;
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.featured-product::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    transform: translate(30%, -30%);
}

.featured-product-visual {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.app-showcase {
    width: 200px;
    height: 200px;
    background: linear-gradient(135deg, #f59e0b, #d97706);
    border-radius: var(--radius-2xl);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-shadow: 0 20px 40px rgba(245, 158, 11, 0.3);
    position: relative;
}

.showcase-icon {
    width: 80px;
    height: 80px;
    color: white;
}

.showcase-icon svg {
    width: 100%;
    height: 100%;
}

.showcase-screens {
    display: flex;
    gap: 0.5rem;
    margin-top: 1rem;
}

.screen-dot {
    width: 8px;
    height: 8px;
    background: rgba(255, 255, 255, 0.4);
    border-radius: 50%;
    transition: all 0.3s ease;
}

.screen-dot.active {
    background: white;
    width: 24px;
    border-radius: 4px;
}

.floating-badge {
    position: absolute;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 0.875rem;
    box-shadow: var(--shadow-lg);
}

.rating-badge {
    top: 0.5rem;
    right: -0.5rem;
    background: white;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
}

.badge-stars {
    color: #fbbf24;
    font-size: 0.75rem;
}

.badge-score {
    color: var(--text-primary);
    font-size: 1.125rem;
    font-weight: 700;
}

.hot-badge {
    bottom: 1.5rem;
    left: -0.5rem;
    background: linear-gradient(135deg, #ec4899, #be185d);
    color: white;
}

/* ── Image Carousel ── */
.img-carousel {
    position: relative;
    width: 220px;
    aspect-ratio: 1242 / 2688;
    border-radius: 20px;
    overflow: hidden;
    background: #000;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.18);
    flex-shrink: 0;
    margin: 0 auto;
}

.carousel-slide {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
    transition: opacity 0.5s ease;
    user-select: none;
    -webkit-user-drag: none;
}

.carousel-slide.active {
    opacity: 1;
}

.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.88);
    border: none;
    border-radius: 50%;
    width: 30px;
    height: 30px;
    cursor: pointer;
    font-size: 1.25rem;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
    transition: background 0.2s, opacity 0.2s;
    opacity: 0;
    color: var(--text-primary);
    padding: 0;
}

.img-carousel:hover .carousel-btn {
    opacity: 1;
}

.carousel-prev { left: 0.4rem; }
.carousel-next { right: 0.4rem; }

.carousel-btn:hover {
    background: white;
}

.carousel-dots {
    position: absolute;
    bottom: 0.6rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 5px;
    z-index: 10;
}

.carousel-dot {
    width: 6px;
    height: 6px;
    border-radius: 3px;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.carousel-dot.active {
    background: white;
    width: 18px;
}

/* ── Hero phone carousel ── */
.hero-carousel {
    width: 100%;
    height: 100%;
    position: relative;
    overflow: hidden;
    border-radius: 32px;
}

.hero-slide {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
    transition: opacity 0.6s ease;
    user-select: none;
    -webkit-user-drag: none;
}

.hero-slide.active {
    opacity: 1;
}

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

.product-title-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.product-title-row h4 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
}

.product-rating-inline {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--bg-secondary);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
}

.product-rating-inline .stars {
    color: #fbbf24;
    font-size: 0.875rem;
}

.rating-text {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.product-highlights-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin: 1.5rem 0;
}

.highlight-box {
    background: white;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1rem;
    text-align: center;
    transition: all 0.3s ease;
}

.highlight-box:hover {
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.highlight-number {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.highlight-label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

.product-features-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.feature-pill {
    padding: 0.5rem 1rem;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(236, 72, 153, 0.1));
    color: var(--primary-color);
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: var(--radius-full);
    border: 1px solid rgba(99, 102, 241, 0.2);
}

.product-cta-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

.price-display {
    display: flex;
    align-items: baseline;
    gap: 0.75rem;
}

.price-current {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    line-height: 1;
}

.price-original {
    font-size: 1.25rem;
    color: var(--text-light);
    text-decoration: line-through;
}

.price-tag {
    font-size: 0.875rem;
    color: var(--text-secondary);
    background: var(--bg-secondary);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
}

.btn-download {
    padding: 1rem 2rem;
    font-size: 1.125rem;
    background: linear-gradient(135deg, #000000, #1e293b);
}

.btn-download:hover {
    background: linear-gradient(135deg, #1e293b, #334155);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

/* Responsive for Featured Product */
@media (max-width: 968px) {
    .featured-product {
        grid-template-columns: 1fr;
        gap: 2rem;
        padding: 2rem;
    }
    
    .featured-product-visual {
        order: -1;
    }

    .img-carousel {
        width: 180px;
    }
    
    .app-showcase {
        width: 160px;
        height: 160px;
    }
    
    .showcase-icon {
        width: 60px;
        height: 60px;
    }
    
    .floating-badge {
        position: relative;
        top: auto;
        right: auto;
        bottom: auto;
        left: auto;
        margin-top: 1rem;
    }
    
    .rating-badge {
        flex-direction: row;
        gap: 0.5rem;
    }
    
    .product-highlights-row {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .product-cta-row {
        flex-direction: column;
        align-items: stretch;
    }
    
    .price-display {
        justify-content: center;
    }
}

@media (max-width: 640px) {
    .featured-product {
        padding: 1.5rem;
    }
    
    .product-title-row {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .product-highlights-row {
        grid-template-columns: 1fr;
    }
    
    .highlight-box {
        display: flex;
        align-items: center;
        justify-content: space-between;
        text-align: left;
    }
    
    .highlight-number {
        font-size: 1.25rem;
    }
}

.btn-full {
    width: 100%;
    justify-content: center;
}

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

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

/* Coming Soon Cards */
.coming-soon-card {
    position: relative;
    opacity: 0.9;
}

.coming-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: linear-gradient(135deg, #f59e0b, #d97706);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
}

.product-icon.rv {
    background: linear-gradient(135deg, #06b6d4, #0891b2);
}

/* Testimonials */
.testimonials {
    padding: 6rem 0;
    background: linear-gradient(135deg, #f8fafc 0%, #e0e7ff 50%, #fce7f3 100%);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.testimonial-card {
    background: white;
    padding: 2rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
}

.testimonial-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.testimonial-stars {
    color: #fbbf24;
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.testimonial-text {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.author-avatar {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
}

.author-info {
    display: flex;
    flex-direction: column;
}

.author-name {
    font-weight: 600;
    color: var(--text-primary);
}

.author-location {
    font-size: 0.875rem;
    color: var(--text-light);
}

/* About Section Updates */
.about-story {
    background: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    margin: 1.5rem 0;
}

.about-story h4 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.about-story p {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.about-visual {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.developer-card {
    background: linear-gradient(135deg, var(--bg-dark), #1e293b);
    border-radius: var(--radius-xl);
    padding: 2rem;
    color: white;
    display: flex;
    align-items: center;
    gap: 1.25rem;
}

.developer-avatar {
    width: 64px;
    height: 64px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
}

.developer-info h4 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.developer-info p {
    font-size: 0.9375rem;
    color: var(--text-light);
    line-height: 1.6;
}

/* FAQ Section */
.faq {
    padding: 6rem 0;
    background: white;
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    border-bottom: 1px solid var(--border-color);
}

.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem 0;
    cursor: pointer;
    font-weight: 500;
    color: var(--text-primary);
    transition: color 0.3s ease;
}

.faq-question:hover {
    color: var(--primary-color);
}

.faq-icon {
    width: 20px;
    height: 20px;
    transition: transform 0.3s ease;
    flex-shrink: 0;
}

.faq-item.active .faq-icon {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 200px;
    padding-bottom: 1.5rem;
}

.faq-answer p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Contact Card Notes */
.contact-note {
    display: block;
    margin-top: 0.5rem;
    font-size: 0.8125rem;
    color: var(--text-light);
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: white;
    border-radius: var(--radius-xl);
    width: 90%;
    max-width: 400px;
    padding: 1.5rem;
    transform: scale(0.9);
    transition: transform 0.3s ease;
}

.modal.active .modal-content {
    transform: scale(1);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
}

.modal-header h3 {
    font-size: 1.25rem;
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-light);
    transition: color 0.3s ease;
}

.modal-close:hover {
    color: var(--text-primary);
}

.modal-body p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.modal-input {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    font-size: 1rem;
    margin-bottom: 1rem;
    transition: border-color 0.3s ease;
}

.modal-input:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* Responsive Updates */
@media (max-width: 968px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-stats {
        justify-content: center;
    }
}

@media (max-width: 640px) {
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .product-header {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-stats {
        flex-wrap: wrap;
        gap: 1rem;
    }
    
    .hero-stat-divider {
        display: none;
    }
}

/* ========================================
   MoveSee Hero Card (首页 Hero 区域)
   ======================================== */
.movesee-hero-card {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 60%, #1e3a8a 100%);
    border-radius: 24px;
    padding: 28px;
    box-shadow: 0 25px 60px rgba(15, 23, 42, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.1);
    max-width: 380px;
    width: 100%;
    position: relative;
    overflow: hidden;
}

.movesee-hero-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: radial-gradient(circle at 70% 30%, rgba(79, 110, 245, 0.2), transparent 60%);
    pointer-events: none;
}

.ms-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.ms-card-brand {
    display: flex;
    align-items: center;
    gap: 10px;
}

.ms-brand-icon {
    font-size: 1.8rem;
}

.ms-brand-name {
    color: #fff;
    font-weight: 700;
    font-size: 1.05rem;
}

.ms-brand-sub {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.7rem;
}

.ms-live-dot {
    color: #4ade80;
    font-size: 0.75rem;
    font-weight: 600;
    background: rgba(74, 222, 128, 0.12);
    border: 1px solid rgba(74, 222, 128, 0.3);
    padding: 3px 10px;
    border-radius: 20px;
    animation: pulse-green 2s infinite;
}

@keyframes pulse-green {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

.ms-stats-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    margin-bottom: 20px;
}

.ms-stat-box {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 10px 8px;
    text-align: center;
}

.ms-stat-val {
    color: #fff;
    font-weight: 700;
    font-size: 0.95rem;
    line-height: 1.2;
}

.ms-val-green {
    color: #4ade80;
}

.ms-stat-desc {
    color: rgba(255, 255, 255, 0.45);
    font-size: 0.62rem;
    margin-top: 3px;
}

.ms-family-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 20px;
}

.ms-family-row {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.07);
    border-radius: 8px;
    padding: 8px 10px;
}

.ms-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}

.ms-green { background: #4ade80; }
.ms-blue  { background: #60a5fa; }

.ms-family-text {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.78rem;
}

.ms-cta-btn {
    display: block;
    text-align: center;
    background: linear-gradient(135deg, #4f6ef5, #6366f1);
    color: #fff;
    text-decoration: none;
    border-radius: 10px;
    padding: 10px 20px;
    font-size: 0.85rem;
    font-weight: 700;
    transition: all 0.2s;
}

.ms-cta-btn:hover {
    background: linear-gradient(135deg, #3a56d4, #4f46e5);
    transform: translateY(-1px);
}

/* ========================================
   MoveSee Featured Product Card (产品区域)
   ======================================== */
.movesee-featured {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #1e3a8a 100%) !important;
    border-color: rgba(79, 110, 245, 0.4) !important;
}

.movesee-featured::before {
    background: radial-gradient(circle at 80% 20%, rgba(249, 115, 22, 0.12), transparent 50%) !important;
}

.movesee-featured .product-tagline {
    color: #93c5fd;
}

.movesee-featured .product-desc {
    color: rgba(255, 255, 255, 0.68);
}

.movesee-featured .product-title-row h4 {
    color: #fff;
}

.movesee-featured .product-highlights-row .highlight-box {
    background: rgba(255, 255, 255, 0.07);
    border-color: rgba(255, 255, 255, 0.12);
}

.movesee-featured .highlight-number {
    color: #fff;
}

.movesee-featured .highlight-label {
    color: rgba(255, 255, 255, 0.5);
}

.movesee-featured .feature-pill {
    background: rgba(79, 110, 245, 0.2);
    color: #93c5fd;
    border: 1px solid rgba(79, 110, 245, 0.3);
}

.movesee-featured .price-current {
    color: #4ade80;
}

.movesee-featured .price-tag {
    color: rgba(255, 255, 255, 0.5);
}

.product-badge-featured {
    display: inline-block;
    background: linear-gradient(135deg, #4f6ef5, #f97316);
    color: #fff;
    font-size: 0.7rem;
    font-weight: 700;
    padding: 3px 12px;
    border-radius: 20px;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    margin-bottom: 10px;
}

.movesee-visual-panel {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 18px;
    padding: 20px;
    min-height: 260px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.movesee-panel-inner {
    width: 100%;
}

.mvs-icon-row {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
}

.mvs-big-icon {
    font-size: 2rem;
}

.mvs-name {
    color: #fff;
    font-weight: 700;
    font-size: 1rem;
}

.mvs-subtitle {
    color: rgba(255, 255, 255, 0.4);
    font-size: 0.68rem;
}

.mvs-data-rows {
    display: flex;
    flex-direction: column;
    gap: 7px;
}

.mvs-data-row {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 7px;
    padding: 6px 10px;
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.65);
}

.mvs-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    flex-shrink: 0;
}

.mvs-dot.green  { background: #4ade80; }
.mvs-dot.yellow { background: #fbbf24; }
.mvs-dot.red    { background: #f87171; }
.mvs-dot.blue   { background: #60a5fa; }

/* 响应式：Hero 卡片在小屏居中 */
@media (max-width: 968px) {
    .movesee-hero-card {
        max-width: 100%;
        margin: 0 auto;
    }
}

@media (max-width: 640px) {
    .movesee-featured {
        grid-template-columns: 1fr !important;
    }
    .movesee-visual-panel {
        min-height: 160px;
    }
}