/* CSS变量定义 - 主题色彩方案 */
:root {
    --primary-color: #d74371;
    --secondary-color: #b4b1b3;
    --accent-color: #e9bac8;
    --dark-color: #524b4f;
    --white: #ffffff;
    --light-gray: #f8f9fa;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 8px 25px rgba(215, 67, 113, 0.2);
    --border-radius: 8px;
    --transition: all 0.3s ease;
    --font-primary: 'Noto Sans SC', sans-serif;
    --font-secondary: 'Roboto', sans-serif;
}

/* 全局重置和基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 头部导航样式 */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow);
    z-index: 1000;
    transition: var(--transition);
}

.navbar {
    padding: 1rem 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: var(--primary-color);
    font-weight: 700;
    font-size: 1.5rem;
    transition: var(--transition);
}

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

.logo-img {
    width: 32px;
    height: 32px;
    margin-right: 10px;
    border-radius: 4px;
}

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

.nav-link {
    text-decoration: none;
    color: var(--dark-color);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.nav-link:hover {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: var(--white);
    transform: translateY(-2px);
}

.nav-link i {
    font-size: 0.9rem;
}

/* 汉堡菜单 */
.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.bar {
    width: 25px;
    height: 3px;
    background-color: var(--primary-color);
    transition: var(--transition);
}

/* 英雄区域样式 */
.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    color: var(--white);
    padding: 100px 0 60px;
    margin-top: 80px;
    position: relative;
    overflow: hidden;
}

.hero::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 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="75" cy="75" r="1" fill="rgba(255,255,255,0.1)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
}

.hero-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-description {
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
    opacity: 0.9;
    font-weight: 400;
}

.hero-meta {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    opacity: 0.9;
}

.meta-item i {
    color: var(--accent-color);
}

.download-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    background: var(--white);
    color: var(--primary-color);
    padding: 1rem 2.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.download-btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
    background: var(--light-gray);
}

/* 通用区域样式 */
section {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--dark-color);
    margin-bottom: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

.section-title i {
    color: var(--primary-color);
    font-size: 2rem;
}

/* 新闻区域样式 */
.news {
    background: var(--light-gray);
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.news-card {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.news-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.news-date {
    color: var(--primary-color);
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.news-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: 1rem;
}

.news-content {
    color: var(--secondary-color);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.news-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.news-link:hover {
    color: var(--dark-color);
    transform: translateX(5px);
}

/* 画廊区域样式 */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.gallery-item {
    position: relative;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.gallery-item:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-hover);
}

.gallery-item img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    transition: var(--transition);
}

.gallery-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(215, 67, 113, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

.gallery-item:hover .gallery-overlay {
    opacity: 1;
}

.gallery-overlay i {
    color: var(--white);
    font-size: 2rem;
}

/* 评价区域样式 */
.reviews {
    background: var(--light-gray);
}

.reviews-stats {
    text-align: center;
    margin-bottom: 3rem;
}

.rating-overview {
    margin-bottom: 2rem;
}

.rating-score {
    font-size: 4rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.rating-stars {
    font-size: 1.5rem;
    color: #ffd700;
    margin-bottom: 0.5rem;
}

.rating-count {
    color: var(--secondary-color);
    font-size: 1.1rem;
}

.rating-tags {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.rating-tag {
    background: var(--white);
    color: var(--primary-color);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    box-shadow: var(--shadow);
}

.reviews-carousel {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    overflow: hidden;
}

.review-card {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--shadow);
    display: none;
    text-align: center;
}

.review-card.active {
    display: block;
}

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

.reviewer-name {
    font-weight: 600;
    color: var(--dark-color);
}

.review-rating {
    color: #ffd700;
}

.review-text {
    font-style: italic;
    color: var(--secondary-color);
    line-height: 1.7;
}

.carousel-controls {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 2rem;
}

.carousel-btn {
    background: var(--primary-color);
    color: var(--white);
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.carousel-btn:hover {
    background: var(--dark-color);
    transform: scale(1.1);
}

/* 版本历史样式 */
.version-timeline {
    max-width: 800px;
    margin: 0 auto;
}

.version-item {
    display: flex;
    gap: 2rem;
    margin-bottom: 3rem;
    padding-bottom: 2rem;
    border-bottom: 2px solid var(--light-gray);
}

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

.version-date {
    flex-shrink: 0;
    width: 120px;
    font-weight: 600;
    color: var(--primary-color);
    font-size: 1.1rem;
}

.version-content {
    flex: 1;
}

.version-title {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: 1rem;
}

.version-info {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 1rem;
}

.version-size,
.version-platform {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--secondary-color);
    font-size: 0.9rem;
}

.version-features {
    list-style: none;
    margin-bottom: 1.5rem;
}

.version-features li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--secondary-color);
}

.version-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

.version-download {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--primary-color);
    color: var(--white);
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.version-download:hover {
    background: var(--dark-color);
    transform: translateY(-2px);
}

/* FAQ区域样式 */
.faq {
    background: var(--light-gray);
}

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

.faq-item {
    background: var(--white);
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
    box-shadow: var(--shadow);
    overflow: hidden;
}

.faq-question {
    width: 100%;
    background: none;
    border: none;
    padding: 1.5rem 2rem;
    text-align: left;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--dark-color);
    transition: var(--transition);
}

.faq-question:hover {
    background: var(--light-gray);
}

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

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

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

.faq-item.active .faq-answer {
    max-height: 200px;
}

.faq-answer p {
    padding: 0 2rem 1.5rem;
    color: var(--secondary-color);
    line-height: 1.7;
}

/* 页脚样式 */
.footer {
    background: var(--dark-color);
    color: var(--white);
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.footer-title i {
    color: var(--primary-color);
}

.footer-subtitle {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--accent-color);
}

.footer-description {
    color: var(--secondary-color);
    line-height: 1.7;
}

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

.footer-links li {
    margin-bottom: 0.5rem;
}

.footer-links a {
    color: var(--secondary-color);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--primary-color);
    transform: translateX(5px);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(180, 177, 179, 0.3);
    color: var(--secondary-color);
}

/* 返回顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: var(--primary-color);
    color: var(--white);
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    cursor: pointer;
    box-shadow: var(--shadow);
    transition: var(--transition);
    opacity: 0;
    visibility: hidden;
    z-index: 1000;
}

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

.back-to-top:hover {
    background: var(--dark-color);
    transform: translateY(-3px);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 80px;
        flex-direction: column;
        background-color: var(--white);
        width: 100%;
        text-align: center;
        transition: var(--transition);
        box-shadow: var(--shadow);
        padding: 2rem 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .hamburger {
        display: flex;
    }

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

    .hamburger.active .bar:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }

    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }

    .hero-title {
        font-size: 2rem;
    }

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

    .section-title {
        font-size: 2rem;
    }

    .hero-meta {
        gap: 1rem;
    }

    .meta-item {
        font-size: 0.85rem;
    }

    .version-item {
        flex-direction: column;
        gap: 1rem;
    }

    .version-date {
        width: auto;
    }

    .version-info {
        flex-direction: column;
        gap: 0.5rem;
    }

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

    .back-to-top {
        bottom: 1rem;
        right: 1rem;
        width: 45px;
        height: 45px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    .hero {
        padding: 80px 0 50px;
    }

    .hero-title {
        font-size: 1.8rem;
    }

    .hero-description {
        font-size: 0.95rem;
    }

    .hero-meta {
        gap: 0.75rem;
    }

    .meta-item {
        font-size: 0.8rem;
    }

    section {
        padding: 60px 0;
    }

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

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

    .faq-question {
        padding: 1rem 1.5rem;
        font-size: 1rem;
    }

    .faq-answer p {
        padding: 0 1.5rem 1rem;
    }
}

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

.news-card,
.gallery-item,
.review-card,
.version-item,
.faq-item {
    animation: fadeInUp 0.6s ease-out;
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--light-gray);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--dark-color);
}

/* 选择文本样式 */
::selection {
    background: var(--primary-color);
    color: var(--white);
}

::-moz-selection {
    background: var(--primary-color);
    color: var(--white);
}