:root {
    --orange-primary: #FF7A00;
    --orange-dark: #E56B00;
    --orange-light: #FF9C42;
    --orange-pale: #FFF3E6;
    --teal-accent: #00C2A8;
    --yellow-accent: #FFC145;
    --dark-color: #1A1A1A;
    --gray-dark: #333333;
    --gray-medium: #666666;
    --gray-light: #F5F5F5;
    --white: #FFFFFF;
}

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

body {
    font-family: 'SF Pro Text', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', sans-serif;
    background-color: var(--white);
    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 - 极简设计 */
header {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 20px 0;
    border-bottom: 1px solid rgba(255, 122, 0, 0.1);
    transition: all 0.3s ease;
}

.header-scrolled {
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
    padding: 15px 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.logo-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--orange-primary), var(--orange-light));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 24px;
    font-weight: 700;
    transform: rotate(-5deg);
    transition: transform 0.3s ease;
}

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

.logo:hover .logo-icon {
    transform: rotate(0deg);
}

.logo-text h1 {
    font-size: 28px;
    font-weight: 800;
    color: var(--dark-color);
    line-height: 1;
}

.logo-text span {
    font-size: 12px;
    color: var(--orange-primary);
    font-weight: 600;
    margin-top: 3px;
    display: block;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 40px;
}

nav a {
    color: var(--gray-dark);
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    transition: all 0.3s ease;
    position: relative;
    padding: 8px 0;
}

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

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

nav a.active:before {
    content: '';
    position: absolute;
    width: 6px;
    height: 6px;
    background-color: var(--orange-primary);
    border-radius: 50%;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--dark-color);
    font-size: 24px;
    cursor: pointer;
    z-index: 1001;
}

/* 主内容区样式 */
section {
    padding: 100px 0;
}

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

.section-tag {
    display: inline-block;
    background-color: var(--orange-pale);
    color: var(--orange-primary);
    padding: 8px 20px;
    border-radius: 30px;
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 20px;
    letter-spacing: 1px;
}

.section-header h2 {
    font-size: 48px;
    font-weight: 800;
    color: var(--dark-color);
    margin-bottom: 20px;
    line-height: 1.1;
}

.section-header p {
    font-size: 18px;
    color: var(--gray-medium);
    max-width: 700px;
    margin: 0 auto;
}

/* 英雄区域 - 创新设计 */
.hero-section {
    padding: 180px 0 120px;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, var(--orange-pale) 0%, rgba(255, 156, 66, 0.05) 100%);
}

.hero-section:before {
    content: '';
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(255, 122, 0, 0.1) 0%, rgba(255, 122, 0, 0) 70%);
    top: -300px;
    right: -200px;
    border-radius: 50%;
    z-index: 0;
}

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

.hero-text {
    max-width: 550px;
}

.hero-text h1 {
    font-size: 64px;
    line-height: 1.1;
    margin-bottom: 30px;
    color: var(--dark-color);
    font-weight: 800;
}

.hero-text h1 span {
    color: var(--orange-primary);
    position: relative;
    display: inline-block;
}

.hero-text h1 span:after {
    content: '';
    position: absolute;
    width: 100%;
    height: 12px;
    background-color: rgba(255, 122, 0, 0.15);
    bottom: 8px;
    left: 0;
    z-index: -1;
    border-radius: 6px;
}

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

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

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

.stat-number {
    font-size: 36px;
    font-weight: 800;
    color: var(--orange-primary);
    line-height: 1;
    margin-bottom: 8px;
}

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

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

.hero-btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background-color: var(--orange-primary);
    color: var(--white);
    padding: 18px 32px;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 700;
    font-size: 16px;
    transition: all 0.3s ease;
    box-shadow: 0 8px 20px rgba(255, 122, 0, 0.2);
    border: 2px solid transparent;
}

.hero-btn:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 25px rgba(255, 122, 0, 0.3);
    background-color: var(--orange-dark);
}

.hero-btn.secondary {
    background-color: transparent;
    color: var(--dark-color);
    border: 2px solid var(--gray-medium);
    box-shadow: none;
}

.hero-btn.secondary:hover {
    background-color: var(--orange-pale);
    color: var(--orange-primary);
    border-color: var(--orange-primary);
}

.hero-image {
    position: relative;
}

.comic-stack {
    position: relative;
    width: 100%;
    height: 500px;
}

.comic-item {
    position: absolute;
    width: 85%;
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.5s ease;
}

.comic-item img {
    width: 65%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.comic-item:nth-child(1) {
    top: 0;
    left: 0;
    z-index: 3;
    transform: rotate(-3deg);
}

.comic-item:nth-child(2) {
    top: 20px;
    left: 20px;
    z-index: 2;
    transform: rotate(2deg);
    opacity: 0.9;
}

.comic-item:nth-child(3) {
    top: 40px;
    left: 40px;
    z-index: 1;
    transform: rotate(-1deg);
    opacity: 0.8;
}

.comic-stack:hover .comic-item:nth-child(1) {
    transform: rotate(-5deg) translateY(-10px);
}

.comic-stack:hover .comic-item:nth-child(2) {
    transform: rotate(4deg) translateY(-5px);
}

.comic-stack:hover .comic-item:nth-child(3) {
    transform: rotate(-2deg) translateY(0);
}

.free-badge {
    position: absolute;
    top: 20px;
    right: 170px;
    background-color: var(--yellow-accent);
    color: var(--dark-color);
    padding: 10px 20px;
    border-radius: 30px;
    font-size: 14px;
    font-weight: 800;
    z-index: 4;
    display: flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 5px 15px rgba(255, 193, 69, 0.3);
}

/* 功能特点区域 - 网格设计 */
.features-section {
    background-color: var(--white);
    position: relative;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.feature-item {
    background-color: var(--white);
    border-radius: 16px;
    padding: 40px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 122, 0, 0.1);
    position: relative;
    overflow: hidden;
}

.feature-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px rgba(255, 122, 0, 0.1);
    border-color: var(--orange-primary);
}

.feature-number {
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 64px;
    font-weight: 800;
    color: rgba(255, 122, 0, 0.05);
    line-height: 1;
}

.feature-icon {
    width: 60px;
    height: 60px;
    border-radius: 16px;
    background-color: var(--orange-pale);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--orange-primary);
    font-size: 24px;
    margin-bottom: 25px;
}

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

.feature-item p {
    color: var(--gray-medium);
    font-size: 16px;
    line-height: 1.7;
}

/* 版本区域 - 横向滑动设计 */
.versions-section {
    background-color: var(--gray-light);
    position: relative;
    overflow: hidden;
}

.versions-section:before {
    content: '';
    position: absolute;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(0, 194, 168, 0.1) 0%, rgba(0, 194, 168, 0) 70%);
    bottom: -200px;
    right: -200px;
    border-radius: 50%;
    z-index: 0;
}

.versions-container {
    display: flex;
    gap: 30px;
    overflow-x: auto;
    padding: 20px 10px 40px;
    scrollbar-width: thin;
    scrollbar-color: var(--orange-primary) transparent;
    position: relative;
    z-index: 1;
}

.versions-container::-webkit-scrollbar {
    height: 6px;
}

.versions-container::-webkit-scrollbar-track {
    background: transparent;
}

.versions-container::-webkit-scrollbar-thumb {
    background-color: var(--orange-primary);
    border-radius: 10px;
}

.version-card {
    flex: 0 0 auto;
    width: 320px;
    background-color: var(--white);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.version-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.12);
    border-color: var(--orange-primary);
}

.version-header {
    padding: 30px 30px 20px;
    background-color: var(--orange-pale);
    text-align: center;
    position: relative;
}

.version-icon {
    width: 70px;
    height: 70px;
    border-radius: 16px;
    background-color: var(--orange-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: var(--white);
    font-size: 28px;
}

.version-title {
    font-size: 22px;
    font-weight: 800;
    color: var(--dark-color);
    margin-bottom: 8px;
}

.version-subtitle {
    font-size: 14px;
    color: var(--orange-primary);
    font-weight: 600;
}

.version-content {
    padding: 30px;
}

.version-info {
    margin-bottom: 25px;
}

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

.info-label {
    color: var(--gray-medium);
}

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

.version-download {
    display: block;
    width: 100%;
    background-color: var(--orange-primary);
    color: var(--white);
    padding: 16px;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 700;
    text-align: center;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.version-download:hover {
    background-color: var(--orange-dark);
    box-shadow: 0 5px 15px rgba(255, 122, 0, 0.2);
}

/* 用户评价区域 - 瀑布流设计 */
.testimonials-section {
    background-color: var(--white);
    position: relative;
}

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

.testimonial-card {
    background-color: var(--white);
    border-radius: 16px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 122, 0, 0.1);
}

.testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(255, 122, 0, 0.1);
    border-color: var(--orange-primary);
}

.testimonial-card:nth-child(3n+1) {
    grid-row: span 2;
}

.testimonial-header {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
}

.testimonial-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    overflow: hidden;
    margin-right: 15px;
    background: linear-gradient(135deg, var(--orange-primary), var(--orange-light));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 20px;
    flex-shrink: 0;
}

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

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

.testimonial-rating {
    color: var(--yellow-accent);
    margin-bottom: 15px;
    font-size: 16px;
}

.testimonial-text {
    color: var(--gray-dark);
    font-size: 16px;
    line-height: 1.7;
}

/* 页脚样式 */
footer {
    background-color: var(--dark-color);
    color: var(--white);
    padding: 80px 0 40px;
    position: relative;
}

.footer-container {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 50px;
    margin-bottom: 60px;
}

.footer-column h3 {
    font-size: 20px;
    margin-bottom: 25px;
    color: var(--white);
    position: relative;
    padding-bottom: 10px;
}

.footer-column h3:after {
    content: '';
    position: absolute;
    width: 40px;
    height: 3px;
    background-color: var(--orange-primary);
    bottom: 0;
    left: 0;
    border-radius: 3px;
}

.footer-column p, .footer-column a {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 12px;
    display: block;
    text-decoration: none;
    transition: color 0.3s ease;
    font-size: 15px;
}

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

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.social-link {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 18px;
    transition: all 0.3s ease;
}

.social-link:hover {
    background-color: var(--orange-primary);
    transform: translateY(-3px);
}

.footer-bottom {
    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: 1100px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 60px;
    }

    .hero-text, .hero-image {
        width: 100%;
    }

    .section-header h2 {
        font-size: 42px;
    }

    .hero-text h1 {
        font-size: 54px;
    }

    .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-container {
        grid-template-columns: repeat(2, 1fr);
        gap: 40px;
    }
    .comic-item img {
        width: 100%;
    }
    .free-badge {
        right : 20px;
    }
}

@media (max-width: 992px) {
    section {
        padding: 80px 0;
    }

    .hero-text h1 {
        font-size: 46px;
    }

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

    .section-header h2 {
        font-size: 38px;
    }
    .comic-item img {
        width: 100%;
    }
    .free-badge {
        right : 20px;
    }
}

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

    nav {
        position: fixed;
        top: 0;
        right: -300px;
        width: 300px;
        height: 100vh;
        background-color: var(--white);
        padding: 100px 40px 40px;
        box-shadow: -5px 0 20px rgba(0, 0, 0, 0.1);
        transition: all 0.4s ease;
        z-index: 1000;
    }

    nav.active {
        right: 0;
    }

    nav ul {
        flex-direction: column;
        gap: 25px;
    }

    nav a {
        display: block;
        padding: 12px 0;
        font-size: 18px;
    }

    .hero-text h1 {
        font-size: 40px;
    }

    .hero-stats {
        gap: 30px;
    }

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

    .hero-buttons {
        flex-direction: column;
    }
    .comic-item img {
        width: 100%;
    }
    .free-badge {
        right : 20px;
    }
}

@media (max-width: 576px) {
    .logo-text h1 {
        font-size: 24px;
    }

    .hero-text h1 {
        font-size: 36px;
    }

    .section-header h2 {
        font-size: 32px;
    }

    .hero-btn {
        justify-content: center;
        padding: 16px 24px;
    }

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

    .comic-stack {
        height: 400px;
    }
    .comic-item img {
        width: 100%;
    }
    .free-badge {
        right : 20px;
    }
}