/* ==================== 全局样式 ==================== */
:root {
    /* 主色调 */
    --primary-color: #A5E3FF;
    --primary-dark: #6DCFF6;
    --primary-light: #D4F1FF;

    /* 辅助色 */
    --secondary-color: #F9A8D4;
    --secondary-dark: #F472B6;
    --secondary-light: #FBCFE8;

    /* 中性色 */
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-tertiary: #94a3b8;
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;

    /* 渐变色 */
    --gradient-primary: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    --gradient-hero: linear-gradient(135deg, #A5E3FF 0%, #F9A8D4 50%, #D4F1FF 100%);

    /* 阴影 */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-glow: 0 0 20px rgba(165, 227, 255, 0.5);

    /* 字体 */
    --font-primary: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    /* 动画曲线 */
    --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
    --ease-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    color: var(--text-primary);
    background-color: var(--bg-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* ==================== 导航栏 ==================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: linear-gradient(135deg, #A5E3FF 0%, #6DCFF6 100%);
    box-shadow: 0 2px 10px rgba(165, 227, 255, 0.3);
    transition: all 0.3s var(--ease-smooth);
}

.navbar.scrolled {
    background: linear-gradient(135deg, #A5E3FF 0%, #6DCFF6 100%);
    box-shadow: var(--shadow-lg);
}

.nav-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 20px;
    font-weight: 700;
    color: white;
    text-decoration: none;
}

.logo-image {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    object-fit: cover;
}

.logo-text {
    color: white;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 8px;
}

.nav-link {
    display: block;
    padding: 8px 16px;
    color: white;
    text-decoration: none;
    font-weight: 500;
    border-radius: 8px;
    transition: all 0.3s var(--ease-smooth);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 16px;
    right: 16px;
    height: 2px;
    background: white;
    transform: scaleX(0);
    transition: transform 0.3s var(--ease-smooth);
    border-radius: 2px;
}

.nav-link:hover,
.nav-link.active {
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

.nav-link:hover::after,
.nav-link.active::after {
    transform: scaleX(1);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all 0.3s var(--ease-smooth);
}

/* 导航栏下拉菜单 */
.nav-dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: white;
    box-shadow: var(--shadow-lg);
    border-radius: 8px;
    min-width: 160px;
    padding: 8px 0;
    list-style: none;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s var(--ease-smooth);
    z-index: 1000;
}

.nav-dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-link {
    display: block;
    padding: 10px 20px;
    color: var(--text-primary);
    text-decoration: none;
    transition: all 0.3s var(--ease-smooth);
}

.dropdown-link:hover {
    color: white;
    background: var(--primary-color);
}

/* 产品详情样式 */
.product-detail {
    margin-bottom: 60px;
    padding: 40px;
    background: white;
    border-radius: 20px;
    box-shadow: var(--shadow-md);
}

.product-header {
    display: flex;
    gap: 30px;
    align-items: center;
    margin-bottom: 40px;
    padding-bottom: 30px;
    border-bottom: 2px solid var(--bg-tertiary);
}

.product-logo {
    width: 120px;
    height: 120px;
    border-radius: 24px;
    object-fit: cover;
    box-shadow: var(--shadow-md);
}

.product-info {
    flex: 1;
}

.product-name {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 12px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.product-tagline {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 16px;
    font-weight: 500;
}

.product-intro {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 20px;
}

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

.btn-sm {
    padding: 10px 20px;
    font-size: 14px;
}

/* 子标题样式 */
.subsection-title {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 24px;
    color: var(--text-primary);
    padding-left: 12px;
    border-left: 4px solid var(--primary-color);
}

.features-section,
.screenshots-section,
.product-download {
    margin-top: 40px;
}

.product-download {
    text-align: center;
    padding: 40px 20px;
    background: var(--bg-secondary);
    border-radius: 16px;
}

.products {
    padding: 100px 0;
    background: var(--bg-secondary);
}

/* 页面头部样式 */
.page-header {
    padding: 120px 0 60px;
    background: linear-gradient(135deg, var(--primary-color) 0%, #6DCFF6 100%);
    text-align: center;
    color: white;
}

.page-title {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 16px;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.page-subtitle {
    font-size: 18px;
    opacity: 0.95;
}

/* 产品列表页面样式 */
.products-list {
    padding: 80px 0;
    background: var(--bg-secondary);
}

.product-card-large {
    display: flex;
    gap: 40px;
    background: white;
    border-radius: 20px;
    padding: 40px;
    box-shadow: var(--shadow-md);
    margin-bottom: 40px;
    transition: all 0.3s var(--ease-smooth);
}

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

.product-card-large .product-card-image {
    flex-shrink: 0;
    width: 200px;
    height: 200px;
}

.product-card-large .product-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 20px;
}

.product-card-large .product-card-content {
    flex: 1;
}

.product-card-title {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 12px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.product-card-tagline {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.product-card-intro {
    font-size: 15px;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.product-features-quick {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 24px;
}

.feature-quick {
    padding: 8px 16px;
    background: var(--bg-secondary);
    border-radius: 20px;
    font-size: 14px;
    color: var(--text-secondary);
}

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

/* 产品占位符 */
.product-card-placeholder {
    background: white;
    border-radius: 20px;
    padding: 60px 40px;
    box-shadow: var(--shadow-md);
    text-align: center;
}

.placeholder-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    color: var(--text-tertiary);
}

.placeholder-icon {
    width: 80px;
    height: 80px;
    opacity: 0.3;
}

.placeholder-content h3 {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-secondary);
}

.placeholder-content p {
    font-size: 15px;
}

/* ==================== Hero 区域 ==================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 72px;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: -1;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
    animation: float 20s infinite ease-in-out;
}

.orb-1 {
    width: 400px;
    height: 400px;
    background: var(--primary-color);
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.orb-2 {
    width: 500px;
    height: 500px;
    background: var(--secondary-color);
    bottom: 10%;
    right: 10%;
    animation-delay: -7s;
}

.orb-3 {
    width: 300px;
    height: 300px;
    background: var(--primary-light);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: -14s;
}

@keyframes float {

    0%,
    100% {
        transform: translate(0, 0);
    }

    25% {
        transform: translate(30px, -30px);
    }

    50% {
        transform: translate(-20px, 20px);
    }

    75% {
        transform: translate(20px, 30px);
    }
}

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

.hero-text {
    z-index: 1;
}

.hero-title {
    font-size: 56px;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 24px;
}

.title-line {
    display: block;
}

.title-line.highlight {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 32px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 48px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    font-size: 16px;
    font-weight: 600;
    border-radius: 12px;
    text-decoration: none;
    transition: all 0.3s var(--ease-smooth);
    border: 2px solid transparent;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-lg);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl), var(--shadow-glow);
}

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

.btn-secondary:hover {
    background: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.hero-stats {
    display: flex;
    gap: 48px;
}

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

.stat-number {
    font-size: 32px;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 4px;
}

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

.hero-image {
    position: relative;
    z-index: 1;
}

.phone-mockup {
    position: relative;
    width: 100%;
    max-width: 350px;
    margin: 0 auto;
    padding: 20px;
    background: linear-gradient(135deg, rgba(165, 227, 255, 0.2), rgba(249, 168, 212, 0.2));
    border-radius: 40px;
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-xl);
    animation: phoneFloat 6s infinite ease-in-out;
}

@keyframes phoneFloat {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-20px);
    }
}

.phone-screen {
    position: relative;
    width: 100%;
    aspect-ratio: 9/19.5;
    background: #1e293b;
    border-radius: 30px;
    overflow: hidden;
    box-shadow: inset 0 0 0 2px rgba(255, 255, 255, 0.1);
}

.phone-screen img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* ==================== 功能亮点 ==================== */
.features {
    padding: 100px 0;
    background: var(--bg-primary);
}

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

.section-title {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 16px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
}

.feature-card {
    padding: 32px;
    background: white;
    border-radius: 20px;
    border: 2px solid transparent;
    transition: all 0.3s var(--ease-smooth);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity 0.3s var(--ease-smooth);
    z-index: 0;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.feature-card:hover::before {
    opacity: 0.05;
}

.feature-card>* {
    position: relative;
    z-index: 1;
}

.feature-icon {
    width: 64px;
    height: 64px;
    margin-bottom: 20px;
    padding: 16px;
    background: var(--gradient-primary);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
}

.feature-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.feature-title {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
}

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

/* ==================== 产品截图 ==================== */
.screenshots {
    padding: 100px 0;
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.screenshots-slider {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 60px;
}

.slider-wrapper {
    display: flex;
    gap: 24px;
    overflow-x: auto;
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding: 20px 0;
}

.slider-wrapper::-webkit-scrollbar {
    display: none;
}

.screenshot-item {
    flex: 0 0 280px;
    text-align: center;
}

.screenshot-item img {
    width: 100%;
    height: auto;
    border-radius: 20px;
    box-shadow: var(--shadow-xl);
    transition: all 0.3s var(--ease-smooth);
}

.screenshot-item:hover img {
    transform: scale(1.05);
    box-shadow: var(--shadow-xl), 0 0 30px rgba(165, 227, 255, 0.3);
}

.screenshot-caption {
    margin-top: 16px;
    font-size: 14px;
    color: var(--text-secondary);
    font-weight: 500;
}

.slider-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 48px;
    height: 48px;
    background: white;
    border: 2px solid var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s var(--ease-smooth);
    z-index: 10;
}

.slider-nav:hover {
    background: var(--primary-color);
    box-shadow: var(--shadow-lg);
}

.slider-nav svg {
    width: 24px;
    height: 24px;
    color: var(--primary-dark);
}

.slider-nav:hover svg {
    color: white;
}

.slider-nav.prev {
    left: 0;
}

.slider-nav.next {
    right: 0;
}

/* ==================== 关于产品 ==================== */
.about {
    padding: 100px 0;
    background: var(--bg-primary);
}

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

.about-image img {
    width: 100%;
    height: auto;
    border-radius: 20px;
    box-shadow: var(--shadow-xl);
}

.about-text .section-title {
    text-align: left;
    margin-bottom: 24px;
}

.about-description p {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 20px;
}

.about-description strong {
    color: var(--primary-dark);
    font-weight: 600;
}

.about-highlights {
    margin-top: 32px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px;
    background: var(--bg-secondary);
    border-radius: 12px;
    transition: all 0.3s var(--ease-smooth);
}

.highlight-item:hover {
    background: var(--primary-light);
    transform: translateX(8px);
}

.highlight-icon {
    width: 24px;
    height: 24px;
    color: var(--primary-dark);
    flex-shrink: 0;
}

.highlight-item span {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-primary);
}

/* ==================== 下载区域 ==================== */
.download {
    padding: 100px 0;
    background: var(--gradient-hero);
    position: relative;
    overflow: hidden;
}

.download::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 120"><path fill="white" fill-opacity="0.1" d="M0,0V46.29c47.79,22.2,103.59,32.17,158,28,70.36-5.37,136.33-33.31,206.8-37.5C438.64,32.43,512.34,53.67,583,72.05c69.27,18,138.3,24.88,209.4,13.08,36.15-6,69.85-17.84,104.45-29.34C989.49,25,1113-14.29,1200,52.47V0Z" opacity=".25"/><path fill="white" fill-opacity="0.1" d="M0,0V15.81C13,36.92,27.64,56.86,47.69,72.05,99.41,111.27,165,111,224.58,91.58c31.15-10.15,60.09-26.07,89.67-39.8,40.92-19,84.73-46,130.83-49.67,36.26-2.85,70.9,9.42,98.6,31.56,31.77,25.39,62.32,62,103.63,73,40.44,10.79,81.35-6.69,119.13-24.28s75.16-39,116.92-43.05c59.73-5.85,113.28,22.88,168.9,38.84,30.2,8.66,59,6.17,87.09-7.5,22.43-10.89,48-26.93,60.65-49.24V0Z" opacity=".5"/><path fill="white" fill-opacity="0.1" d="M0,0V5.63C149.93,59,314.09,71.32,475.83,42.57c43-7.64,84.23-20.12,127.61-26.46,59-8.63,112.48,12.24,165.56,35.4C827.93,77.22,886,95.24,951.2,90c86.53-7,172.46-45.71,248.8-84.81V0Z"/></svg>') repeat-x bottom;
    background-size: 1200px 120px;
}

.download-content {
    text-align: center;
    position: relative;
    z-index: 1;
}

.download-content .section-title,
.download-content .section-subtitle {
    color: white;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    -webkit-text-fill-color: white;
}

.download-buttons {
    display: flex;
    justify-content: center;
    gap: 24px;
    margin: 48px 0 24px;
}

.download-btn {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px 32px;
    background: white;
    border-radius: 16px;
    text-decoration: none;
    transition: all 0.3s var(--ease-smooth);
    box-shadow: var(--shadow-lg);
}

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

.download-icon {
    width: 48px;
    height: 48px;
}

.download-btn.ios .download-icon {
    color: #000000;
}

.download-btn.android .download-icon {
    color: #3DDC84;
}

.download-text {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.download-label {
    font-size: 12px;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.download-platform {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
}

.download-note {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.8);
    margin-top: 16px;
}

/* ==================== 页脚 ==================== */
.footer {
    background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
    color: white;
    padding: 60px 0 24px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 48px;
    margin-bottom: 48px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 16px;
}

.footer-logo img {
    width: 40px;
    height: 40px;
    border-radius: 10px;
}

.footer-description {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 24px;
    line-height: 1.6;
}

.social-links {
    display: flex;
    gap: 12px;
}

.social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    color: white;
    transition: all 0.3s var(--ease-smooth);
}

.social-link:hover {
    background: var(--primary-color);
    transform: translateY(-2px);
}

.social-link svg {
    width: 20px;
    height: 20px;
}

.footer-title {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 20px;
    color: white;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: all 0.3s var(--ease-smooth);
    font-size: 14px;
}

.footer-links a:hover {
    color: var(--primary-color);
    padding-left: 4px;
}

.footer-contact {
    list-style: none;
}

.footer-contact li {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
}

.contact-icon {
    width: 18px;
    height: 18px;
    color: var(--primary-color);
    flex-shrink: 0;
}

.footer-contact a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.3s var(--ease-smooth);
}

.footer-contact a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.5);
    font-size: 14px;
}

.footer-bottom a {
    color: rgba(255, 255, 255, 0.5);
    text-decoration: none;
    transition: color 0.3s var(--ease-smooth);
}

.footer-bottom a:hover {
    color: var(--primary-color);
}

/* ==================== 返回顶部按钮 ==================== */
.back-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 48px;
    height: 48px;
    background: var(--gradient-primary);
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s var(--ease-smooth);
    box-shadow: var(--shadow-lg);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl), var(--shadow-glow);
}

.back-to-top svg {
    width: 24px;
    height: 24px;
    color: white;
}

/* ==================== 响应式设计 ==================== */
@media (max-width: 1024px) {

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

    .hero-image {
        order: -1;
    }

    .phone-mockup {
        max-width: 280px;
    }

    .hero-title {
        font-size: 42px;
    }

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

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        flex-direction: column;
        background: white;
        box-shadow: var(--shadow-lg);
        padding: 20px;
        gap: 0;
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s var(--ease-smooth);
    }

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

    .nav-link {
        padding: 12px 16px;
    }

    .mobile-menu-toggle {
        display: flex;
    }

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

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

    .hero-buttons {
        flex-direction: column;
    }

    .hero-stats {
        gap: 24px;
    }

    .section-title {
        font-size: 32px;
    }

    .section-subtitle {
        font-size: 16px;
    }

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

    .download-buttons {
        flex-direction: column;
        align-items: center;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }

    .screenshots-slider {
        padding: 0 40px;
    }

    .slider-nav {
        width: 40px;
        height: 40px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .hero-title {
        font-size: 28px;
    }

    .hero-stats {
        flex-wrap: wrap;
        justify-content: center;
    }

    .stat-number {
        font-size: 24px;
    }

    .section-title {
        font-size: 28px;
    }

    .feature-card {
        padding: 24px;
    }
}
/* ==================== 关于我们页面 ==================== */
.about-page {
    padding: 80px 0;
    background: white;
}

.about-page .about-content {
    display: flex;
    gap: 60px;
    align-items: center;
    margin-bottom: 80px;
}

.about-page .about-image {
    flex-shrink: 0;
    width: 400px;
}

.about-page .about-image img {
    width: 100%;
    border-radius: 20px;
}

.about-page .about-text {
    flex: 1;
}

.core-values {
    text-align: center;
}

.core-values .section-title {
    margin-bottom: 40px;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.value-card {
    padding: 40px 30px;
    background: var(--bg-secondary);
    border-radius: 16px;
    transition: all 0.3s var(--ease-smooth);
}

.value-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.value-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    color: var(--primary-color);
}

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

.value-card p {
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-secondary);
}

/* ==================== 联系我们页面 ==================== */
.contact-page {
    padding: 80px 0;
    background: var(--bg-secondary);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info .section-title,
.business-inquiry .section-title {
    margin-bottom: 30px;
}

.contact-items {
    display: flex;
    flex-direction: column;
    gap: 30px;
    margin-bottom: 50px;
}

.contact-item {
    display: flex;
    gap: 20px;
    padding: 30px;
    background: white;
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
}

.contact-item-icon {
    width: 48px;
    height: 48px;
    flex-shrink: 0;
    color: var(--primary-color);
}

.contact-item-content h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.contact-item-content p {
    font-size: 15px;
    color: var(--text-secondary);
    margin: 4px 0;
}

.contact-item-content a {
    color: var(--primary-color);
    text-decoration: none;
}

.contact-item-content a:hover {
    text-decoration: underline;
}

.contact-note {
    font-size: 13px !important;
    color: var(--text-tertiary) !important;
}

.social-section {
    background: white;
    padding: 30px;
    border-radius: 16px;
}

.social-section h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.social-links-large {
    display: flex;
    gap: 20px;
}

.social-link-large {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding: 24px;
    background: var(--bg-secondary);
    border-radius: 12px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.3s var(--ease-smooth);
}

.social-link-large:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-4px);
}

.social-link-large svg {
    width: 32px;
    height: 32px;
}

.social-link-large span {
    font-size: 14px;
    font-weight: 500;
}

.inquiry-cards {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.inquiry-card {
    padding: 30px;
    background: white;
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
}

.inquiry-card h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.inquiry-card p {
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

/* ==================== 响应式 - 新页面 ==================== */
@media (max-width: 768px) {
    .values-grid {
        grid-template-columns: 1fr;
    }
    
    .about-page .about-content {
        flex-direction: column;
    }
    
    .about-page .about-image {
        width: 100%;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .social-links-large {
        flex-direction: column;
    }
    
    .product-card-large {
        flex-direction: column;
    }
    
    .product-card-large .product-card-image {
        width: 100%;
    }
}

/* ==================== 产品详情页 ==================== */
.product-hero {
    padding: 100px 0 80px;
    background: linear-gradient(135deg, var(--bg-secondary) 0%, white 100%);
}

.product-hero-content {
    display: flex;
    gap: 60px;
    align-items: center;
}

.product-hero-text {
    flex: 1;
}

.product-logo-large {
    width: 120px;
    height: 120px;
    margin-bottom: 24px;
}

.product-logo-large img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 24px;
    box-shadow: var(--shadow-md);
}

.product-hero-title {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 16px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.product-hero-tagline {
    font-size: 24px;
    color: var(--text-secondary);
    margin-bottom: 24px;
    font-weight: 500;
}

.product-hero-desc {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.product-hero-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 40px;
}

.btn-lg {
    padding: 16px 32px;
    font-size: 16px;
}

.product-hero-image {
    flex-shrink: 0;
    width: 400px;
}

.phone-mockup-large {
    position: relative;
    width: 100%;
    padding: 20px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    border-radius: 40px;
    box-shadow: var(--shadow-xl);
}

.phone-mockup-large .phone-screen {
    border-radius: 30px;
    overflow: hidden;
    background: white;
}

.phone-mockup-large .phone-screen img {
    width: 100%;
    display: block;
}

.product-stats {
    display: flex;
    gap: 40px;
    padding-top: 32px;
    border-top: 2px solid var(--bg-tertiary);
}

.product-stats .stat-item {
    text-align: left;
}

.product-stats .stat-number {
    font-size: 32px;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 4px;
}

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

/* 功能和截图完整版 */
.features-section-full,
.screenshots-section-full {
    padding: 80px 0;
}

.features-section-full {
    background: white;
}

.screenshots-section-full {
    background: var(--bg-secondary);
}

.download-section {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, #6DCFF6 100%);
    text-align: center;
    color: white;
}

.download-content-center {
    max-width: 800px;
    margin: 0 auto;
}

.download-section .section-title {
    color: white;
}

.download-section .section-subtitle {
    color: rgba(255, 255, 255, 0.9);
}

.download-section .download-note {
    color: rgba(255, 255, 255, 0.8);
}

/* 响应式 - 产品详情页 */
@media (max-width: 768px) {
    .product-hero-content {
        flex-direction: column;
    }
    
    .product-hero-image {
        width: 100%;
        max-width: 300px;
    }
    
    .product-hero-title {
        font-size: 36px;
    }
    
    .product-hero-tagline {
        font-size: 18px;
    }
    
    .product-stats {
        flex-direction: column;
        gap: 20px;
    }
    
    .product-hero-actions {
        flex-direction: column;
    }
    
    .btn-lg {
        width: 100%;
    }
}