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

:root {
    --primary-color: #4a90e2;
    --primary-dark: #357abd;
    --secondary-color: #6c757d;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #17a2b8;
    --dark-color: #343a40;
    --light-color: #f8f9fa;
    --white: #ffffff;
    --gray-100: #f8f9fa;
    --gray-200: #e9ecef;
    --gray-300: #dee2e6;
    --gray-400: #ced4da;
    --gray-500: #adb5bd;
    --gray-600: #6c757d;
    --gray-700: #495057;
    --gray-800: #343a40;
    --gray-900: #212529;
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
    --shadow: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-md: 0 6px 12px rgba(0,0,0,0.15);
    --shadow-lg: 0 10px 20px rgba(0,0,0,0.15);
    --border-radius: 8px;
    --border-radius-lg: 12px;
    --transition: all 0.3s ease;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", "Microsoft YaHei", sans-serif;
    line-height: 1.6;
    color: var(--gray-900);
    background-color: var(--gray-100);
    overflow-x: hidden;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* 深色模式 */
body[data-theme="dark"] {
    --gray-100: #1a1a2e;
    --gray-200: #16213e;
    --gray-300: #0f3460;
    --gray-400: #533483;
    --gray-500: #7289da;
    --gray-600: #99aab5;
    --gray-700: #b9bbbe;
    --gray-800: #2c2f33;
    --gray-900: #e0e0e0;
    --white: #1a1a2e;
    --light-color: #16213e;
    background-color: #0f0f23;
    color: #e0e0e0;
}

body[data-theme="dark"] .navbar {
    background: #1a1a2e;
    box-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

body[data-theme="dark"] .footer {
    background: #1a1a2e;
    border-top: 1px solid #2a2a4e;
}

body[data-theme="dark"] .about-section,
body[data-theme="dark"] .software-section,
body[data-theme="dark"] .faq-item,
body[data-theme="dark"] .feature-card {
    background: #1a1a2e;
    box-shadow: 0 4px 15px rgba(0,0,0,0.3);
}

body[data-theme="dark"] .qrcode-card {
    background: #16213e;
    border-color: #0f3460;
}

body[data-theme="dark"] .qq-contact-box {
    background: #16213e;
}

body[data-theme="dark"] .about-simple-content {
    background: linear-gradient(135deg, #1a1a2e, #16213e);
    border-color: #0f3460;
}

body[data-theme="dark"] .wish-text {
    color: #ff6b6b;
}

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

/* 导航栏样式 */
.navbar {
    background: var(--white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: var(--transition);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
    cursor: pointer;
}

.nav-brand i {
    font-size: 2rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 1.5rem;
}

.nav-menu a {
    position: relative;
    text-decoration: none;
    color: var(--gray-700);
    font-weight: 500;
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    padding: 0.6rem 1.2rem;
    border-radius: 8px;
    overflow: hidden;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    line-height: 1;
    min-height: 40px;
}

/* 悬停和选中状态的基础样式 */
.nav-menu a:hover {
    color: var(--primary-color);
    background: linear-gradient(135deg, rgba(74, 144, 226, 0.08) 0%, rgba(74, 144, 226, 0.12) 100%);
    transform: translateY(-3px) scale(1.08);
    box-shadow: 0 8px 20px rgba(74, 144, 226, 0.2);
}

/* 选中状态的额外样式 */
.nav-menu a.active {
    color: var(--primary-color);
    background: linear-gradient(135deg, rgba(74, 144, 226, 0.15) 0%, rgba(74, 144, 226, 0.2) 100%);
    font-weight: 600;
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(74, 144, 226, 0.25);
}

/* 深色模式下的悬停效果 */
body[data-theme="dark"] .nav-menu a {
    color: var(--gray-700);
}

body[data-theme="dark"] .nav-menu a:hover {
    color: #64b5f6;
    background: linear-gradient(135deg, rgba(74, 144, 226, 0.15) 0%, rgba(74, 144, 226, 0.2) 100%);
    box-shadow: 0 8px 25px rgba(74, 144, 226, 0.4);
}

body[data-theme="dark"] .nav-menu a.active {
    color: #64b5f6;
    background: linear-gradient(135deg, rgba(74, 144, 226, 0.25) 0%, rgba(74, 144, 226, 0.3) 100%);
    box-shadow: 0 6px 20px rgba(74, 144, 226, 0.45);
}

/* 光晕效果 - 悬停时的背景光晕 */
.nav-menu a::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(74, 144, 226, 0.15),
        transparent
    );
    transition: left 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    pointer-events: none;
}

.nav-menu a:hover::before {
    left: 100%;
}

/* 边框高亮效果 - 底部渐变线条 */
.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--primary-color), transparent);
    transform: translateX(-50%);
    transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    pointer-events: none;
    border-radius: 2px 2px 0 0;
}

.nav-menu a:hover::after {
    width: 90%;
}

.nav-menu a.active::after {
    width: 100%;
    height: 3px;
    box-shadow: 0 -2px 8px rgba(74, 144, 226, 0.4);
}

/* 点击波纹效果 */
.nav-menu a .click-ripple {
    position: absolute;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(74, 144, 226, 0.4) 0%, rgba(74, 144, 226, 0) 70%);
    transform: scale(0);
    animation: nav-ripple 0.7s cubic-bezier(0.4, 0, 0.2, 1);
    pointer-events: none;
}

@keyframes nav-ripple {
    0% {
        transform: scale(0);
        opacity: 1;
    }
    100% {
        transform: scale(3.5);
        opacity: 0;
    }
}

/* 脉冲动画 - 选中状态 */
@keyframes nav-pulse {
    0%, 100% {
        box-shadow: 0 6px 16px rgba(74, 144, 226, 0.25);
        transform: translateY(-2px);
    }
    50% {
        box-shadow: 0 8px 24px rgba(74, 144, 226, 0.35);
        transform: translateY(-3px);
    }
}

.nav-menu a.active {
    animation: nav-pulse 2.5s ease-in-out infinite;
}

/* 图标动画 */
.nav-menu a i {
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

.nav-menu a:hover i {
    transform: scale(1.2) rotate(5deg);
}

.nav-menu a.active i {
    transform: scale(1.15);
}

/* 移动端菜单中的动画优化 */
@media (max-width: 768px) {
    .nav-menu {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .nav-menu a {
        padding: 0.8rem 1.2rem;
        margin: 0.25rem 0;
        justify-content: flex-start;
    }
    
    .nav-menu a:hover,
    .nav-menu a.active {
        transform: translateX(8px) scale(1.03);
    }
    
    .nav-menu a:hover::after,
    .nav-menu a.active::after {
        width: 70%;
    }
}

/* 主题切换按钮 */
.theme-toggle {
    position: relative;
    width: 42px;
    height: 42px;
    border: none;
    background: var(--gray-200);
    color: var(--gray-700);
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    overflow: hidden;
    margin-left: 1rem;
}

.theme-toggle:hover {
    background: var(--primary-color);
    color: var(--white);
    transform: rotate(15deg);
}

.theme-toggle:active {
    transform: scale(0.95);
}

body[data-theme="dark"] .theme-toggle {
    background: #2a2a4e;
    color: #ffd700;
}

body[data-theme="dark"] .theme-toggle:hover {
    background: #ffd700;
    color: #1a1a2e;
}

/* 光圈动画 */
.ripple-effect {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.6);
    transform: scale(0);
    animation: ripple-animation 0.6s linear;
    pointer-events: none;
}

body[data-theme="dark"] .ripple-effect {
    background: rgba(255, 215, 0, 0.4);
}

@keyframes ripple-animation {
    0% {
        transform: scale(0);
        opacity: 1;
    }
    100% {
        transform: scale(4);
        opacity: 0;
    }
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--gray-700);
    border-radius: 2px;
    transition: var(--transition);
}

/* Hero 区域 */
.hero {
    position: relative;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--white);
    padding: 6rem 0;
    text-align: center;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('../qz.jpg') center/cover no-repeat;
    opacity: 0.15;
    z-index: 0;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 50%, transparent 0%, rgba(0,0,0,0.2) 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    animation: fadeInUp 0.8s ease;
    text-shadow: 0 4px 20px rgba(0,0,0,0.3);
}

.hero-subtitle {
    font-size: 1.4rem;
    margin-bottom: 2.5rem;
    opacity: 0.95;
    animation: fadeInUp 0.8s ease 0.2s both;
    text-shadow: 0 2px 10px rgba(0,0,0,0.2);
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease 0.4s both;
}

.btn-lg {
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
}

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

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

/* 特色展示区 */
.features-showcase {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    padding: 4rem 0;
    margin-top: 2rem;
}

.feature-item {
    text-align: center;
    padding: 2rem;
    background: var(--white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

body[data-theme="dark"] .feature-item {
    background: #1a1a2e;
}

.feature-item:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.feature-icon-box {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 2.2rem;
    transition: var(--transition);
}

.feature-item:hover .feature-icon-box {
    transform: scale(1.1) rotate(5deg);
}

.feature-item h3 {
    font-size: 1.4rem;
    margin-bottom: 0.8rem;
    color: var(--gray-900);
}

body[data-theme="dark"] .feature-item h3 {
    color: #e0e0e0;
}

.feature-item p {
    color: var(--gray-600);
    line-height: 1.6;
}

/* 推荐软件区 */
.software-recommend {
    padding: 4rem 0;
    text-align: center;
}

.section-title-with-line {
    position: relative;
    display: inline-block;
    margin-bottom: 1rem;
}

.section-title-with-line span {
    position: relative;
    z-index: 1;
    font-size: 2rem;
    color: var(--gray-900);
    padding: 0 1.5rem;
    background: transparent;
}

body[data-theme="dark"] .section-title-with-line span {
    color: #e0e0e0;
}

.section-title-with-line::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-dark));
    border-radius: 2px;
}

.section-desc {
    color: var(--gray-600);
    font-size: 1.1rem;
    margin-bottom: 3rem;
}

.software-highlight {
    max-width: 800px;
    margin: 0 auto;
}

.highlight-card {
    display: flex;
    background: var(--white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: var(--transition);
}

body[data-theme="dark"] .highlight-card {
    background: #1a1a2e;
}

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

.highlight-image {
    width: 280px;
    background: linear-gradient(135deg, rgba(74, 144, 226, 0.1), rgba(74, 144, 226, 0.05));
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.highlight-image img {
    max-width: 180px;
    max-height: 180px;
    border-radius: 20px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.15);
    transition: var(--transition);
}

.highlight-card:hover .highlight-image img {
    transform: scale(1.05);
}

.highlight-info {
    flex: 1;
    padding: 2.5rem;
    text-align: left;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.highlight-info h3 {
    font-size: 1.8rem;
    color: var(--gray-900);
    margin-bottom: 0.5rem;
}

body[data-theme="dark"] .highlight-info h3 {
    color: #e0e0e0;
}

.highlight-version {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 1rem;
}

.highlight-text {
    color: var(--gray-600);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.btn-sm {
    padding: 0.6rem 1.5rem;
    font-size: 0.95rem;
    align-self: flex-start;
}

/* 行动号召区 */
.cta-section {
    padding: 5rem 0;
    margin: 3rem 0;
    background: linear-gradient(135deg, rgba(74, 144, 226, 0.05), rgba(74, 144, 226, 0.1));
    border-radius: var(--border-radius-lg);
    text-align: center;
}

body[data-theme="dark"] .cta-section {
    background: linear-gradient(135deg, rgba(74, 144, 226, 0.1), rgba(74, 144, 226, 0.15));
}

.cta-content h2 {
    font-size: 2.2rem;
    color: var(--gray-900);
    margin-bottom: 1rem;
}

body[data-theme="dark"] .cta-content h2 {
    color: #e0e0e0;
}

.cta-content p {
    font-size: 1.2rem;
    color: var(--gray-600);
    margin-bottom: 2rem;
}

/* 移动端适配 */
@media (max-width: 768px) {
    .hero {
        padding: 4rem 0;
    }
    
    .hero-title {
        font-size: 2.2rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: 1rem;
    }
    
    .btn-lg {
        width: 100%;
        justify-content: center;
    }
    
    .features-showcase {
        grid-template-columns: 1fr;
        gap: 2rem;
        padding: 2rem 0;
    }
    
    .highlight-card {
        flex-direction: column;
    }
    
    .highlight-image {
        width: 100%;
        height: 250px;
    }
    
    .highlight-info {
        padding: 2rem;
        text-align: center;
    }
    
    .btn-sm {
        align-self: center;
    }
    
    .cta-content h2 {
        font-size: 1.6rem;
    }
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 0.75rem 2rem;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
    background: var(--primary-color);
    color: var(--white);
    transform: translateY(-2px);
}

.btn-download {
    background: var(--success-color);
    color: var(--white);
}

.btn-download:hover {
    background: #218838;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

/* Section 样式 */
.section-title {
    text-align: center;
    font-size: 2rem;
    margin: 3rem 0 2rem;
    color: var(--gray-900);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

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

/* 软件展示区 */
.software-section {
    padding: 2rem 0;
}

.software-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.software-card {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow);
    transition: var(--transition);
    text-align: center;
}

.software-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.software-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1rem;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 2.5rem;
}

.software-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--gray-900);
}

.software-card .version {
    color: var(--gray-600);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.software-card .description {
    color: var(--gray-700);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.software-screenshots {
    margin: 1rem 0;
}

.screenshot-thumbnail {
    width: 100%;
    height: 150px;
    background: var(--gray-200);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-400);
    font-size: 3rem;
}

.software-features {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
    margin: 1rem 0;
}

.software-features span {
    background: var(--gray-100);
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    font-size: 0.85rem;
    color: var(--gray-700);
}

.software-features i {
    color: var(--success-color);
    margin-right: 4px;
}

.software-stats {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin: 1rem 0;
    color: var(--gray-600);
    font-size: 0.9rem;
}

.software-stats i {
    color: var(--warning-color);
}

/* 特性展示区 */
.features-section {
    padding: 3rem 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.feature-card {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.feature-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 1rem;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 2rem;
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--gray-900);
}

.feature-card p {
    color: var(--gray-600);
    line-height: 1.8;
}

/* 软件展示区域 */
.software-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2rem;
    margin: 2rem auto;
    max-width: 1200px;
}

.software-card {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    transition: var(--transition);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

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

.software-icon {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, rgba(74, 144, 226, 0.1), rgba(74, 144, 226, 0.05));
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.software-icon img {
    max-width: 150px;
    max-height: 150px;
    object-fit: contain;
    border-radius: 20px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.15);
    transition: var(--transition);
}

.software-card:hover .software-icon img {
    transform: scale(1.05);
}

.software-info {
    padding: 1.5rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.software-info h3 {
    font-size: 1.5rem;
    color: var(--gray-900);
    margin-bottom: 0.5rem;
}

.software-version {
    color: var(--primary-color);
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 0.8rem;
}

.software-desc {
    color: var(--gray-600);
    line-height: 1.6;
    margin-bottom: 1rem;
    flex: 1;
}

.software-meta {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
    font-size: 0.85rem;
    color: var(--gray-500);
}

.software-meta span {
    display: flex;
    align-items: center;
    gap: 5px;
}

.software-meta .file-size {
    color: var(--primary-color);
    font-weight: 600;
}

.download-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--white);
    padding: 0.8rem 1.5rem;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    box-shadow: 0 4px 12px rgba(74, 144, 226, 0.3);
}

.download-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(74, 144, 226, 0.4);
    background: linear-gradient(135deg, var(--primary-dark), #2d6fa8);
}

.download-btn:active {
    transform: translateY(0);
}

/* 深色模式下的软件卡片 */
body[data-theme="dark"] .software-card {
    background: #1a1a2e;
}

body[data-theme="dark"] .software-info h3 {
    color: #e0e0e0;
}

body[data-theme="dark"] .software-icon {
    background: linear-gradient(135deg, rgba(74, 144, 226, 0.15), rgba(74, 144, 226, 0.08));
}

body[data-theme="dark"] .software-icon img {
    box-shadow: 0 8px 20px rgba(0,0,0,0.3);
}

/* 移动端适配 */
@media (max-width: 768px) {
    .software-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .software-icon {
        height: 180px;
    }
    
    .software-icon img {
        max-width: 120px;
        max-height: 120px;
    }
}

/* FAQ 区域 */
.faq-section {
    padding: 3rem 0;
}

.faq-container {
    max-width: 800px;
    margin: 2rem auto;
}

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

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    cursor: pointer;
    transition: var(--transition);
}

.faq-question:hover {
    background: var(--gray-100);
}

.faq-question h3 {
    font-size: 1.1rem;
    color: var(--gray-900);
}

.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: 300px;
}

.faq-answer p {
    padding: 0 1.5rem 1.5rem;
    color: var(--gray-700);
    line-height: 1.8;
}

/* 页脚 */
.footer {
    background: var(--gray-900);
    color: var(--gray-300);
    padding: 3rem 0 1rem;
    margin-top: 4rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    color: var(--white);
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.footer-section p {
    line-height: 1.8;
    margin-bottom: 0.5rem;
}

.footer-section ul {
    list-style: none;
}

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

.footer-section a {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
}

.footer-section a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

.footer-section strong {
    color: var(--primary-color);
    font-weight: 600;
    transition: var(--transition);
    cursor: pointer;
}

.footer-section strong:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: var(--gray-800);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

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

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--gray-800);
}

/* 软件详情页样式 */
.detail-page {
    padding: 2rem 0;
}

.breadcrumb {
    padding: 1rem 0;
    margin-bottom: 2rem;
    color: var(--gray-600);
}

.breadcrumb a {
    color: var(--primary-color);
    text-decoration: none;
}

.software-detail {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
}

.detail-header {
    display: flex;
    gap: 2rem;
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 2px solid var(--gray-200);
}

.detail-icon {
    width: 120px;
    height: 120px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: var(--border-radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 4rem;
    flex-shrink: 0;
}

.detail-info h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--gray-900);
}

.detail-version,
.detail-size,
.detail-date {
    color: var(--gray-600);
    margin-bottom: 0.5rem;
}

.detail-rating {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-top: 1rem;
}

.stars {
    color: var(--warning-color);
    font-size: 1.2rem;
}

.rating-text {
    color: var(--gray-600);
}

.detail-content {
    display: grid;
    grid-template-columns: 1fr 350px;
    gap: 2rem;
}

.detail-main {
    min-width: 0;
}

.detail-section {
    margin-bottom: 2.5rem;
}

.detail-section h2 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--gray-900);
    display: flex;
    align-items: center;
    gap: 10px;
}

.detail-section h2 i {
    color: var(--primary-color);
}

.feature-list ul {
    list-style: none;
    display: grid;
    gap: 1rem;
}

.feature-list li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    color: var(--gray-700);
}

.feature-list i {
    color: var(--success-color);
    margin-top: 3px;
}

/* 截图画廊 */
.screenshot-gallery {
    margin-bottom: 1rem;
}

.screenshot-item {
    display: none;
    border-radius: var(--border-radius);
    overflow: hidden;
}

.screenshot-item.active {
    display: block;
}

.screenshot-item img {
    width: 100%;
    height: auto;
    display: block;
}

.screenshot-thumbnails {
    display: flex;
    gap: 10px;
    margin-top: 1rem;
}

.thumbnail {
    width: 100px;
    height: 70px;
    border-radius: var(--border-radius);
    overflow: hidden;
    cursor: pointer;
    opacity: 0.6;
    transition: var(--transition);
}

.thumbnail:hover,
.thumbnail.active {
    opacity: 1;
    transform: scale(1.05);
}

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

/* 安装说明 */
.installation-guide {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.step {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
}

.step-number {
    width: 40px;
    height: 40px;
    background: var(--primary-color);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.step-content h4 {
    font-size: 1.1rem;
    color: var(--gray-900);
    margin-bottom: 0.5rem;
}

.step-content p {
    color: var(--gray-600);
    line-height: 1.8;
}

/* 系统要求 */
.system-requirements {
    display: grid;
    gap: 1rem;
}

.requirement-item {
    display: grid;
    grid-template-columns: 120px 1fr;
    gap: 1rem;
    padding: 1rem;
    background: var(--gray-100);
    border-radius: var(--border-radius);
}

.requirement-label {
    font-weight: 600;
    color: var(--gray-700);
}

.requirement-value {
    color: var(--gray-600);
}

/* 侧边栏 */
.detail-sidebar {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.download-box,
.software-info-box {
    background: var(--gray-100);
    padding: 1.5rem;
    border-radius: var(--border-radius);
}

.download-box h3,
.software-info-box h3 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: var(--gray-900);
    display: flex;
    align-items: center;
    gap: 8px;
}

.version-tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.version-tab {
    flex: 1;
    padding: 0.75rem;
    border: 2px solid var(--gray-300);
    background: var(--white);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
    color: var(--gray-700);
}

.version-tab:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.version-tab.active {
    background: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
}

.download-content {
    background: var(--white);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.download-panel {
    display: none;
    padding: 1rem;
}

.download-panel.active {
    display: block;
}

.download-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    border-bottom: 1px solid var(--gray-200);
}

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

.download-info {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.download-label {
    font-weight: 500;
    color: var(--gray-900);
}

.download-size {
    font-size: 0.85rem;
    color: var(--gray-600);
}

.btn-download {
    padding: 0.5rem 1.5rem;
    font-size: 0.9rem;
}

.download-tips {
    margin-top: 1rem;
    padding: 1rem;
    background: var(--white);
    border-radius: var(--border-radius);
    font-size: 0.85rem;
    color: var(--gray-600);
}

.download-tips p {
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.download-tips p:last-child {
    margin-bottom: 0;
}

/* 统计信息 */
.stats-item {
    display: flex;
    justify-content: space-between;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--gray-300);
}

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

.stats-label {
    color: var(--gray-600);
}

.stats-value {
    font-weight: 600;
    color: var(--primary-color);
}

/* 分享按钮 */
.share-buttons {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.share-btn {
    width: 40px;
    height: 40px;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.2rem;
}

.share-btn.weixin {
    background: #07c160;
}

.share-btn.weibo {
    background: #e6162d;
}

.share-btn.qq {
    background: #12b7f5;
}

.share-btn.link {
    background: var(--gray-600);
}

.share-btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

/* 更新日志时间线 */
.changelog-timeline {
    position: relative;
    padding-left: 30px;
}

.changelog-timeline::before {
    content: '';
    position: absolute;
    left: 10px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--gray-300);
}

.changelog-item {
    position: relative;
    margin-bottom: 2rem;
    background: var(--white);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
}

.changelog-item::before {
    content: '';
    position: absolute;
    left: -24px;
    top: 20px;
    width: 12px;
    height: 12px;
    background: var(--primary-color);
    border-radius: 50%;
    border: 3px solid var(--white);
}

.changelog-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--gray-200);
}

.changelog-version {
    font-weight: 600;
    color: var(--primary-color);
}

.changelog-date {
    color: var(--gray-600);
    font-size: 0.9rem;
}

.changelog-list {
    list-style: none;
}

.changelog-list li {
    padding: 0.5rem 0;
    color: var(--gray-700);
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.changelog-list i {
    margin-top: 3px;
}

.changelog-list .fa-plus-circle {
    color: var(--success-color);
}

.changelog-list .fa-bug {
    color: var(--danger-color);
}

.changelog-list .fa-tachometer-alt,
.changelog-list .fa-paint-brush {
    color: var(--info-color);
}

/* 评论区域 */
.comments-section {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    margin-top: 2rem;
}

.comments-container {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin: 2rem 0;
}

.comment-item {
    display: flex;
    gap: 1rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--gray-200);
}

.comment-avatar {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.5rem;
    flex-shrink: 0;
}

.comment-content {
    flex: 1;
}

.comment-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 0.5rem;
}

.comment-author {
    font-weight: 600;
    color: var(--gray-900);
}

.comment-rating {
    color: var(--warning-color);
}

.comment-date {
    color: var(--gray-600);
    font-size: 0.85rem;
}

.comment-text {
    color: var(--gray-700);
    line-height: 1.8;
}

/* 下载弹窗 */
.download-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    z-index: 2000;
    align-items: center;
    justify-content: center;
}

.download-modal.active {
    display: flex;
}

.modal-content {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    width: 90%;
    max-width: 500px;
    box-shadow: var(--shadow-lg);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    border-bottom: 1px solid var(--gray-200);
}

.modal-header h3 {
    color: var(--gray-900);
    display: flex;
    align-items: center;
    gap: 8px;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--gray-600);
    transition: var(--transition);
}

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

.modal-body {
    padding: 1.5rem;
}

.download-progress {
    margin-bottom: 1.5rem;
}

.progress-info {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
}

.file-name {
    font-weight: 600;
    color: var(--gray-900);
}

.progress-percent {
    color: var(--primary-color);
    font-weight: 600;
}

.progress-bar {
    height: 10px;
    background: var(--gray-200);
    border-radius: 5px;
    overflow: hidden;
    margin-bottom: 0.5rem;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-dark));
    width: 0%;
    transition: width 0.3s ease;
}

.progress-details {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    color: var(--gray-600);
}

.download-actions {
    display: flex;
    gap: 1rem;
}

.download-actions .btn {
    flex: 1;
    justify-content: center;
}

/* 表单样式 */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--gray-700);
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--gray-300);
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-group small {
    display: block;
    margin-top: 0.5rem;
    color: var(--gray-600);
    font-size: 0.85rem;
}

.rating-input {
    display: flex;
    flex-direction: row-reverse;
    justify-content: flex-end;
    gap: 0.5rem;
}

.rating-input input {
    display: none;
}

.rating-input label {
    font-size: 2rem;
    color: var(--gray-300);
    cursor: pointer;
    transition: var(--transition);
}

.rating-input input:checked ~ label,
.rating-input label:hover,
.rating-input label:hover ~ label {
    color: var(--warning-color);
}

.checkbox-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.checkbox-group input[type="checkbox"] {
    width: auto;
}

/* 反馈列表 */
.feedback-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin: 2rem 0;
}

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

.form-card h2 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--gray-900);
    display: flex;
    align-items: center;
    gap: 10px;
}

.feedback-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.feedback-header h2 {
    color: var(--gray-900);
    display: flex;
    align-items: center;
    gap: 10px;
}

.feedback-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.feedback-item {
    display: flex;
    gap: 1rem;
    background: var(--white);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
}

.feedback-avatar {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.5rem;
    flex-shrink: 0;
}

.feedback-content {
    flex: 1;
}

.feedback-header-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.feedback-meta {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.feedback-author {
    font-weight: 600;
    color: var(--gray-900);
}

.feedback-software {
    color: var(--gray-600);
    font-size: 0.85rem;
}

.feedback-rating {
    color: var(--warning-color);
    font-size: 0.9rem;
}

.feedback-type-badge {
    display: inline-block;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.feedback-type-badge.suggestion {
    background: #e3f2fd;
    color: #1976d2;
}

.feedback-type-badge.bug {
    background: #ffebee;
    color: #c62828;
}

.feedback-type-badge.praise {
    background: #e8f5e9;
    color: #2e7d32;
}

.feedback-title {
    font-size: 1.1rem;
    color: var(--gray-900);
    margin-bottom: 0.5rem;
}

.feedback-text {
    color: var(--gray-700);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.feedback-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
}

.feedback-date {
    color: var(--gray-600);
}

.feedback-status {
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-weight: 500;
}

.feedback-status.replied {
    background: #e8f5e9;
    color: #2e7d32;
}

.feedback-status.processing {
    background: #fff3e0;
    color: #f57c00;
}

.feedback-reply {
    margin-top: 1rem;
    padding: 1rem;
    background: var(--gray-100);
    border-radius: var(--border-radius);
    border-left: 3px solid var(--primary-color);
}

.reply-header {
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.feedback-reply p {
    color: var(--gray-700);
    line-height: 1.8;
}

/* 分页 */
.pagination {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin: 2rem 0;
}

.page-btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--white);
    border: 2px solid var(--gray-300);
    border-radius: var(--border-radius);
    color: var(--gray-700);
    text-decoration: none;
    transition: var(--transition);
}

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

/* 关于页面 */
.about-page {
    padding: 2rem 0;
}

.about-hero {
    text-align: center;
    padding: 3rem 0;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--white);
    border-radius: var(--border-radius-lg);
    margin-bottom: 2rem;
}

.about-subtitle {
    font-size: 1.2rem;
    opacity: 0.95;
}

.about-section {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    margin-bottom: 2rem;
    box-shadow: var(--shadow);
}

.about-section h2 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    color: var(--gray-900);
    display: flex;
    align-items: center;
    gap: 10px;
}

.about-section h2 i {
    color: var(--primary-color);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.about-text p {
    color: var(--gray-700);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.about-image {
    display: flex;
    align-items: center;
    justify-content: center;
}

.image-placeholder {
    width: 100%;
    height: 300px;
    background: var(--gray-200);
    border-radius: var(--border-radius);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--gray-400);
    font-size: 4rem;
}

.image-placeholder span {
    font-size: 1rem;
    margin-top: 1rem;
}

/* 使命愿景 */
.mission-vision {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.mv-card {
    text-align: center;
    padding: 2rem;
    background: var(--gray-100);
    border-radius: var(--border-radius);
}

.mv-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1rem;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 2.5rem;
}

.mv-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--gray-900);
}

.mv-card p {
    color: var(--gray-600);
    line-height: 1.8;
}

/* 统计数据 */
.tech-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.stat-card {
    text-align: center;
    padding: 2rem;
    background: var(--gray-100);
    border-radius: var(--border-radius);
}

.stat-number {
    font-size: 3rem;
    font-weight: bold;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--gray-600);
    font-size: 1.1rem;
}

/* 团队展示 */
.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.team-card {
    text-align: center;
    padding: 2rem;
    background: var(--gray-100);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

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

.team-avatar {
    width: 100px;
    height: 100px;
    margin: 0 auto 1rem;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 3rem;
}

.team-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--gray-900);
}

.team-role {
    color: var(--primary-color);
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.team-desc {
    color: var(--gray-600);
    font-size: 0.9rem;
    line-height: 1.8;
}

/* 荣誉资质 */
.awards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.award-card {
    text-align: center;
    padding: 2rem;
    background: var(--gray-100);
    border-radius: var(--border-radius);
}

.award-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1rem;
    background: linear-gradient(135deg, #ffd700, #ffed4e);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 2.5rem;
}

.award-card h3 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: var(--gray-900);
}

.award-card p {
    color: var(--gray-600);
    font-size: 0.9rem;
}

/* 合作伙伴 */
.partners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 2rem;
}

.partner-card {
    background: var(--gray-100);
    padding: 2rem;
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: var(--gray-400);
    transition: var(--transition);
}

.partner-card:hover {
    background: var(--white);
    box-shadow: var(--shadow-md);
    color: var(--primary-color);
}

/* 联系信息 */
.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-item {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.contact-item > i {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.5rem;
    flex-shrink: 0;
}

.contact-item h4 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: var(--gray-900);
}

.contact-item p {
    color: var(--gray-600);
    line-height: 1.8;
}

.contact-map {
    display: flex;
    align-items: center;
    justify-content: center;
}

.map-placeholder {
    width: 100%;
    height: 300px;
    background: var(--gray-200);
    border-radius: var(--border-radius);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--gray-400);
    font-size: 4rem;
}

.map-placeholder span {
    font-size: 1rem;
    margin-top: 1rem;
}

/* 联系表单 */
.contact-form-card {
    background: var(--gray-100);
    padding: 2rem;
    border-radius: var(--border-radius);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

/* 更新日志页面 */
.changelog-page {
    padding: 2rem 0;
}

.page-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--gray-900);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
}

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

.changelog-filter {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin: 2rem 0;
}

.filter-btn {
    padding: 0.75rem 2rem;
    border: 2px solid var(--gray-300);
    background: var(--white);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
    color: var(--gray-700);
}

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

.changelog-group {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    margin-bottom: 2rem;
    box-shadow: var(--shadow);
}

.changelog-version-title {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--gray-200);
    margin-bottom: 1.5rem;
}

.changelog-version-title .version {
    font-size: 1.5rem;
    color: var(--gray-900);
}

.changelog-version-title .version-number {
    color: var(--primary-color);
    font-weight: 600;
}

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

/* 响应式设计 */
@media (max-width: 992px) {
    .detail-content {
        grid-template-columns: 1fr;
    }

    .detail-sidebar {
        order: -1;
    }

    .feedback-container {
        grid-template-columns: 1fr;
    }

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

    .contact-container {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        background: var(--white);
        flex-direction: column;
        padding: 2rem;
        gap: 1rem;
        transition: var(--transition);
        box-shadow: var(--shadow-md);
    }

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

    .hamburger {
        display: flex;
    }

    .hamburger.active span:nth-child(1) {
        transform: rotate(45deg) translate(8px, 8px);
    }

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

    .hamburger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }

    .hero-content h1 {
        font-size: 2rem;
    }

    .hero-content p {
        font-size: 1.1rem;
    }

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

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

    .detail-header {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .detail-rating {
        justify-content: center;
    }

    .screenshot-thumbnails {
        overflow-x: auto;
    }

    .thumbnail {
        flex-shrink: 0;
    }

    .requirement-item {
        grid-template-columns: 1fr;
        gap: 0.3rem;
    }

    .version-tabs {
        flex-direction: column;
    }

    .download-item {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    .download-info {
        align-items: center;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .team-grid,
    .awards-grid,
    .partners-grid {
        grid-template-columns: 1fr;
    }

    .changelog-filter {
        flex-wrap: wrap;
    }

    .feedback-item {
        flex-direction: column;
    }

    .feedback-header-row {
        flex-direction: column;
        gap: 0.5rem;
        align-items: flex-start;
    }
}

@media (max-width: 576px) {
    .container {
        padding: 0 15px;
    }

    .hero {
        padding: 3rem 0;
    }

    .hero-content h1 {
        font-size: 1.5rem;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .btn {
        padding: 0.6rem 1.5rem;
        font-size: 0.9rem;
    }

    .software-card {
        padding: 1.5rem;
    }

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

    .social-links {
        justify-content: center;
    }
}

/* 打印样式 */
@media print {
    .navbar,
    .footer,
    .btn,
    .download-box,
    .share-buttons {
        display: none;
    }

    body {
        background: var(--white);
    }

    .container {
        max-width: 100%;
    }
}

/* 占位内容样式 */
.placeholder-content,
.products-placeholder,
.news-placeholder {
    text-align: center;
    padding: 4rem 2rem;
    background: var(--gray-100);
    border-radius: var(--border-radius-lg);
    margin: 2rem 0;
}

.placeholder-content i,
.products-placeholder i,
.news-placeholder i {
    font-size: 5rem;
    color: var(--gray-400);
    margin-bottom: 1.5rem;
    display: block;
}

.placeholder-content p,
.products-placeholder p,
.news-placeholder p {
    color: var(--gray-600);
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.products-placeholder h2,
.news-placeholder h2 {
    color: var(--gray-700);
    font-size: 1.8rem;
    margin-bottom: 1rem;
}

.products-placeholder .contact-hint {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--gray-300);
    font-size: 1rem;
}

.products-placeholder .contact-hint strong {
    color: var(--primary-color);
    font-size: 1.1rem;
}

/* 图片占位符 */
.image-placeholder {
    width: 100%;
    height: 300px;
    background: linear-gradient(135deg, var(--gray-200), var(--gray-300));
    border-radius: var(--border-radius);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--gray-500);
}

.image-placeholder i {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.image-placeholder span {
    font-size: 1.1rem;
}

/* 简化版关于页面 */
.about-simple-content {
    text-align: center;
    padding: 1.5rem 1rem;
    background: linear-gradient(135deg, #fff5f5, #ffffff);
    border-radius: var(--border-radius-lg);
    border: 1px solid #ffe0e0;
}

.about-simple-content h2 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.wish-text {
    font-size: 1.3rem;
    color: #e74c3c;
    margin: 0.8rem 0;
    font-weight: 600;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.1);
}

.support-text {
    font-size: 0.95rem;
    color: var(--gray-700);
    line-height: 1.8;
    max-width: 600px;
    margin: 0.8rem auto;
    padding: 0 1rem;
}

/* 收款码样式 */
.qrcode-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.qrcode-card {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 2px solid var(--gray-200);
}

.qrcode-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-color);
}

.qrcode-image {
    width: 100%;
    aspect-ratio: 1;
    margin-bottom: 1rem;
    border-radius: var(--border-radius);
    overflow: hidden;
    background: var(--gray-100);
    display: flex;
    align-items: center;
    justify-content: center;
}

.qrcode-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.qrcode-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--gray-400);
}

.qrcode-placeholder i {
    font-size: 4rem;
    margin-bottom: 0.5rem;
}

.qrcode-placeholder span {
    font-size: 0.9rem;
}

.qrcode-card h3 {
    color: var(--gray-900);
    font-size: 1.2rem;
    margin-top: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.qrcode-card .fa-weixin {
    color: #07c160;
}

.qrcode-card .fa-alipay {
    color: #1677ff;
}

.qrcode-card .fa-qq {
    color: #12b7f5;
}

/* 简化联系方式 */
.contact-simple {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    max-width: 600px;
    margin: 0 auto;
}

/* 反馈/建议区域 */
.feedback-section {
    background: linear-gradient(135deg, var(--gray-100), var(--white));
}

.feedback-hint {
    text-align: center;
    color: var(--gray-600);
    font-size: 1rem;
    margin-bottom: 1.5rem;
}

.qq-contact-box {
    text-align: center;
    padding: 2rem;
    background: var(--white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    max-width: 400px;
    margin: 0 auto;
}

.qq-icon-img {
    width: 80px;
    height: 80px;
    object-fit: contain;
    margin-bottom: 1rem;
    transition: var(--transition);
}

.qq-icon-img:hover {
    transform: scale(1.1);
}

body[data-theme="dark"] .qq-icon-img {
    filter: brightness(0.9);
}

.qq-number-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin: 0.5rem 0;
}

.qq-number-row p {
    font-size: 1.3rem;
    color: var(--gray-900);
    margin: 0;
}

.qq-number-row strong {
    color: var(--primary-color);
    font-size: 1.5rem;
    cursor: pointer;
    transition: var(--transition);
    padding: 0.3rem 0.6rem;
    border-radius: var(--border-radius);
}

.qq-number-row strong:hover {
    background: rgba(74, 144, 226, 0.1);
    transform: scale(1.02);
}

.copy-hint {
    font-size: 0.85rem;
    color: var(--gray-500);
    margin-top: 0.8rem;
    transition: var(--transition);
}

/* 响应式调整 */
@media (max-width: 768px) {
    .qrcode-container {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .wish-text {
        font-size: 1.2rem;
    }
    
    .support-text {
        font-size: 1rem;
    }
}

/* 通知中心页面 */
.notice-page {
    padding: 2rem 0;
}

.notice-hero {
    text-align: center;
    padding: 3rem 0;
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: var(--white);
    border-radius: var(--border-radius-lg);
    margin-bottom: 2rem;
}

.notice-subtitle {
    font-size: 1.2rem;
    opacity: 0.95;
}

.notice-section {
    background: var(--white);
    padding: 3rem 2rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
}

.empty-notice {
    text-align: center;
    padding: 4rem 2rem;
}

.empty-notice i {
    font-size: 5rem;
    color: var(--gray-400);
    margin-bottom: 1.5rem;
}

.empty-notice h2 {
    color: var(--gray-700);
    font-size: 1.8rem;
    margin-bottom: 1rem;
}

.empty-notice p {
    color: var(--gray-600);
    font-size: 1.1rem;
}

/* 软件页面 */
.software-page {
    padding: 2rem 0;
}

.software-hero {
    text-align: center;
    padding: 3rem 0;
    background: linear-gradient(135deg, #f093fb, #f5576c);
    color: var(--white);
    border-radius: var(--border-radius-lg);
    margin-bottom: 2rem;
}

.software-subtitle {
    font-size: 1.2rem;
    opacity: 0.95;
}

.software-section {
    background: var(--white);
    padding: 3rem 2rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
}

.empty-software {
    text-align: center;
    padding: 4rem 2rem;
}

.empty-software i {
    font-size: 5rem;
    color: var(--gray-400);
    margin-bottom: 1.5rem;
}

.empty-software h2 {
    color: var(--gray-700);
    font-size: 1.8rem;
    margin-bottom: 1rem;
}

.empty-software p {
    color: var(--gray-600);
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.empty-software .hint {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--gray-300);
    font-size: 1rem;
}

.empty-software .hint strong {
    color: var(--primary-color);
}

/* 导航栏信封图标 */
.nav-menu a i.fa-envelope {
    font-size: 1.3rem;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .notice-hero,
    .software-hero {
        padding: 2rem 0;
    }
    
    .notice-subtitle,
    .software-subtitle {
        font-size: 1rem;
    }
}