:root {
    --primary-color: #FF6B9D;
    --primary-dark: #E04C7E;
    --primary-light: #FF8FB1;
    --secondary-color: #9D4EDD;
    --accent-color: #00D4AA;
    --dark-color: #1A1A2E;
    --light-color: #F8F9FF;
    --gray-color: #6C757D;
    --border-color: #E2E8F0;
    --card-bg: #FFFFFF;
    --shadow-sm: 0 4px 6px rgba(0, 0, 0, 0.05);
    --shadow: 0 10px 20px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 20px 40px rgba(0, 0, 0, 0.12);
    --radius-sm: 12px;
    --radius: 20px;
    --radius-lg: 30px;
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    --gradient-primary: linear-gradient(135deg, #FF6B9D 0%, #9D4EDD 100%);
    --gradient-secondary: linear-gradient(135deg, #00D4AA 0%, #00A8FF 100%);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', 'Noto Sans SC', sans-serif;
    background-color: var(--light-color);
    color: var(--dark-color);
    line-height: 1.6;
    overflow-x: hidden;
    font-weight: 400;
}

.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* 头部样式 - 猫咪主题设计 */
header {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(15px);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    border-bottom: 2px solid var(--border-color);
    padding: 18px 0;
    box-shadow: var(--shadow-sm);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 15px;
    text-decoration: none;
    position: relative;
}

.logo-icon {
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 28px;
    font-weight: 800;
    box-shadow: var(--shadow);
    position: relative;
    overflow: hidden;
}

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

.logo-icon::before {
    content: '';
    position: absolute;
    top: -10px;
    left: -10px;
    width: 30px;
    height: 30px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
}

.logo-icon::after {
    content: '';
    position: absolute;
    bottom: -8px;
    right: -8px;
    width: 25px;
    height: 25px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 50%;
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-main {
    font-size: 28px;
    font-weight: 800;
    color: var(--dark-color);
    letter-spacing: -0.5px;
    line-height: 1;
}

.logo-sub {
    font-size: 14px;
    color: var(--primary-color);
    font-weight: 600;
    margin-top: 4px;
    letter-spacing: 1px;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 35px;
}

nav a {
    color: var(--dark-color);
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    transition: var(--transition);
    position: relative;
    padding: 8px 0;
}

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

nav a.active::before {
    content: '🐾';
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 14px;
}

nav a.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--gradient-primary);
    border-radius: 3px;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

.download-btn {
    background: var(--gradient-primary);
    color: white;
    padding: 12px 28px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    font-size: 15px;
    transition: var(--transition);
    box-shadow: 0 6px 15px rgba(255, 107, 157, 0.3);
    border: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.download-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(255, 107, 157, 0.4);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--dark-color);
    font-size: 28px;
    cursor: pointer;
    z-index: 1001;
}

/* 主要内容区域 */
main {
    margin-top: 100px;
}

section {
    padding: 100px 0;
}

/* 英雄区域 - 动漫风格 */
.hero {
    padding: 80px 0 120px;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, rgba(255, 107, 157, 0.05) 0%, rgba(157, 78, 221, 0.05) 100%);
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(255, 107, 157, 0.1) 0%, rgba(255, 107, 157, 0) 70%);
    border-radius: 50%;
    z-index: 0;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(157, 78, 221, 0.1) 0%, rgba(157, 78, 221, 0) 70%);
    border-radius: 50%;
    z-index: 0;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content {
    max-width: 560px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background-color: rgba(255, 107, 157, 0.15);
    color: var(--primary-color);
    padding: 10px 20px;
    border-radius: 50px;
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 25px;
}

.hero-badge i {
    font-size: 16px;
}

.hero-title {
    font-size: 56px;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 25px;
    color: var(--dark-color);
    letter-spacing: -1px;
}

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

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

.hero-stats {
    display: flex;
    gap: 40px;
    margin-top: 50px;
}

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

.hero-stat-number {
    font-size: 36px;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: 5px;
    line-height: 1;
}

.hero-stat-label {
    font-size: 14px;
    color: var(--gray-color);
    font-weight: 500;
}

.hero-image {
    position: relative;
    width: 55%;
}

.hero-image img {
    width: 100%;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border: 3px solid white;
    position: relative;
    z-index: 2;
}

.hero-image-decoration {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: var(--radius-lg);
    background: var(--gradient-primary);
    top: 20px;
    left: 20px;
    z-index: 1;
}

/* 功能特点 - 卡片式设计 */
.features-section {
    padding: 100px 0;
    background-color: var(--light-color);
}

.section-header {
    text-align: center;
    margin-bottom: 70px;
}

.section-tag {
    display: inline-block;
    background: var(--gradient-secondary);
    color: white;
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 20px;
}

.section-title {
    font-size: 42px;
    font-weight: 800;
    margin-bottom: 20px;
    color: var(--dark-color);
    line-height: 1.2;
}

.section-subtitle {
    font-size: 18px;
    color: var(--gray-color);
    max-width: 600px;
    margin: 0 auto;
}

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

.feature-card {
    background-color: var(--card-bg);
    border-radius: var(--radius);
    padding: 40px 30px;
    border: 2px solid var(--border-color);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    text-align: center;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: var(--gradient-primary);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, rgba(255, 107, 157, 0.1) 0%, rgba(157, 78, 221, 0.1) 100%);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
    color: var(--primary-color);
    font-size: 32px;
    transition: var(--transition);
}

.feature-card:hover .feature-icon {
    background: var(--gradient-primary);
    color: white;
    transform: scale(1.1);
}

.feature-card h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--dark-color);
}

.feature-card p {
    color: var(--gray-color);
    font-size: 15px;
    line-height: 1.7;
}

/* 其他版本 - 猫咪主题设计 */
.versions-section {
    padding: 100px 0;
    background: linear-gradient(135deg, rgba(0, 212, 170, 0.03) 0%, rgba(0, 168, 255, 0.03) 100%);
    border-radius: var(--radius-lg);
}

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

.version-card {
    background-color: var(--card-bg);
    border-radius: var(--radius);
    overflow: hidden;
    border: 2px solid var(--border-color);
    transition: var(--transition);
    position: relative;
}

.version-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-color);
}

.version-header {
    padding: 25px 25px 20px;
    text-align: center;
    position: relative;
    background: linear-gradient(135deg, rgba(0, 212, 170, 0.05) 0%, rgba(0, 168, 255, 0.05) 100%);
}

.version-icon {
    width: 70px;
    height: 70px;
    background: var(--gradient-secondary);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: white;
    font-size: 30px;
}

.version-name {
    font-size: 22px;
    font-weight: 700;
    color: var(--dark-color);
    margin-bottom: 5px;
}

.version-tag {
    display: inline-block;
    background: var(--accent-color);
    color: white;
    padding: 5px 15px;
    border-radius: 50px;
    font-size: 12px;
    font-weight: 700;
    margin-top: 10px;
}

.version-details {
    padding: 25px;
}

.version-detail {
    display: flex;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    font-size: 14px;
}

.version-detail:last-child {
    border-bottom: none;
}

.detail-label {
    color: var(--gray-color);
    font-weight: 500;
}

.detail-value {
    color: var(--dark-color);
    font-weight: 600;
}

.version-footer {
    padding: 0 25px 25px;
    text-align: center;
}

.version-btn {
    display: inline-block;
    background: var(--gradient-secondary);
    color: white;
    padding: 12px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    transition: var(--transition);
    width: 100%;
    text-align: center;
}

.version-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 212, 170, 0.3);
}

/* 用户评价 - 动漫风格 */
.testimonials-section {
    padding: 100px 0;
    background-color: var(--light-color);
}

.testimonials-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.testimonial-card {
    background-color: var(--card-bg);
    border-radius: var(--radius);
    padding: 35px;
    border: 2px solid var(--border-color);
    transition: var(--transition);
    position: relative;
}

.testimonial-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--secondary-color);
}

.testimonial-card::before {
    content: '"';
    position: absolute;
    top: 20px;
    right: 25px;
    font-size: 80px;
    color: rgba(157, 78, 221, 0.1);
    font-family: serif;
    line-height: 1;
}

.testimonial-header {
    display: flex;
    align-items: center;
    margin-bottom: 25px;
}

.testimonial-avatar {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    overflow: hidden;
    margin-right: 20px;
    border: 3px solid var(--primary-color);
    position: relative;
}

.testimonial-avatar::before {
    content: '';
    position: absolute;
    top: -3px;
    left: -3px;
    right: -3px;
    bottom: -3px;
    border-radius: 50%;
    background: var(--gradient-primary);
    z-index: -1;
}

.testimonial-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.testimonial-avatar i {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    color: white;
    font-size: 28px;
}

.testimonial-user-info h4 {
    font-size: 18px;
    font-weight: 700;
    color: var(--dark-color);
    margin-bottom: 5px;
}

.testimonial-user-info p {
    color: var(--gray-color);
    font-size: 14px;
}

.testimonial-rating {
    color: #FFC107;
    margin-bottom: 20px;
    font-size: 16px;
}

.testimonial-content {
    font-size: 15px;
    color: var(--dark-color);
    line-height: 1.7;
    margin-bottom: 20px;
    font-style: italic;
}

.testimonial-tags {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.testimonial-tag {
    background-color: rgba(157, 78, 221, 0.1);
    color: var(--secondary-color);
    padding: 5px 12px;
    border-radius: 50px;
    font-size: 12px;
    font-weight: 600;
}

/* 页脚 */
footer {
    background-color: var(--dark-color);
    color: white;
    padding: 80px 0 40px;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.footer-container {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 80px;
    margin-bottom: 60px;
}

.footer-logo {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.footer-logo .logo-icon {
    width: 60px;
    height: 60px;
}

.footer-logo h3 {
    font-size: 24px;
    font-weight: 800;
    margin-bottom: 10px;
    color: white;
}

.footer-logo p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 15px;
    line-height: 1.7;
}

.footer-social {
    display: flex;
    gap: 15px;
    margin-top: 25px;
}

.footer-social a {
    width: 45px;
    height: 45px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 18px;
    transition: var(--transition);
}

.footer-social a:hover {
    background: var(--gradient-primary);
    transform: translateY(-3px);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.footer-column h4 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 25px;
    color: white;
    position: relative;
    padding-bottom: 10px;
}

.footer-column h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background: var(--gradient-primary);
    border-radius: 3px;
}

.footer-column a {
    display: block;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    margin-bottom: 15px;
    font-size: 15px;
    transition: var(--transition);
}

.footer-column a:hover {
    color: white;
    transform: translateX(5px);
}

.copyright {
    text-align: center;
    padding-top: 40px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.5);
    font-size: 14px;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .hero-title {
        font-size: 48px;
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .hero-image {
        width: 100%;
    }
}

@media (max-width: 992px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 60px;
    }

    .hero-content {
        text-align: center;
        max-width: 100%;
    }

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

    .footer-container {
        grid-template-columns: 1fr;
        gap: 60px;
    }
    .hero-image {
        width: 100%;
    }
}

@media (max-width: 768px) {
    .mobile-menu-btn {
        display: block;
    }

    nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background-color: white;
        padding: 100px 30px 30px;
        transition: var(--transition);
        z-index: 999;
        box-shadow: var(--shadow-lg);
        overflow-y: auto;
    }

    nav.active {
        right: 0;
    }

    nav ul {
        flex-direction: column;
        gap: 0;
    }

    nav a {
        display: block;
        padding: 18px 0;
        border-bottom: 1px solid var(--border-color);
        font-size: 18px;
    }

    nav a.active::before {
        top: 5px;
        left: 0;
        transform: none;
    }

    .hero-title {
        font-size: 40px;
    }

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

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

    .footer-links {
        grid-template-columns: repeat(2, 1fr);
    }
    .hero-image {
        width: 100%;
    }
}

@media (max-width: 576px) {
    .hero-title {
        font-size: 34px;
    }

    .hero-stats {
        flex-direction: column;
        gap: 30px;
    }

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

    .footer-links {
        grid-template-columns: 1fr;
    }
    .hero-image {
        width: 100%;
    }
}