/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-pink: #ff6b9d;
    --secondary-pink: #ffa8cc;
    --light-pink: #ffe0ec;
    --dark-pink: #e91e63;
    --gradient-pink: linear-gradient(135deg, #ff6b9d 0%, #ffa8cc 100%);
    --gradient-light: linear-gradient(135deg, #ffe0ec 0%, #fff5f8 100%);
    --text-dark: #2d3748;
    --text-light: #718096;
    --white: #ffffff;
    --shadow: 0 10px 25px rgba(255, 107, 157, 0.15);
    --shadow-hover: 0 15px 35px rgba(255, 107, 157, 0.25);
    --border-radius: 12px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background: var(--gradient-light);
    min-height: 100vh;
}

/* 导航栏 */
.navbar {
    background: var(--white);
    box-shadow: var(--shadow);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
    box-shadow: 0 4px 12px rgba(255, 107, 157, 0.3);
}

.brand-text {
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient-pink);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    gap: 1rem;
}

.nav-btn {
    padding: 0.75rem 1.5rem;
    border: 2px solid var(--primary-pink);
    border-radius: var(--border-radius);
    background: transparent;
    color: var(--primary-pink);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.nav-btn:hover {
    background: var(--primary-pink);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

/* 主要内容 */
.main-content {
    margin-top: 80px;
    padding: 2rem 0;
}

/* 欢迎区域 */
.hero-section {
    text-align: center;
    padding: 4rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

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

.hero-icon {
    margin-bottom: 2rem;
}

.hero-logo {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    box-shadow: 0 20px 40px rgba(255, 107, 157, 0.3);
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    background: var(--gradient-pink);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-light);
    margin-bottom: 3rem;
    line-height: 1.8;
}

.hero-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature-item {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

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

.feature-item i {
    font-size: 2.5rem;
    color: var(--primary-pink);
}

.feature-item span {
    font-weight: 600;
    color: var(--text-dark);
}

/* 下载区域 */
.download-section {
    background: var(--white);
    margin: 4rem 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.download-container {
    text-align: center;
    padding: 4rem 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.download-container h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.download-container p {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 3rem;
}

/* 下载选项容器 */
.download-options {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    max-width: 800px;
    margin: 0 auto;
}

/* 单个下载选项 */
.download-option {
    background: var(--white);
    border: 2px solid #e5e7eb;
    border-radius: var(--border-radius);
    padding: 2rem;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.download-option:hover {
    border-color: var(--primary-color);
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.download-option.premium {
    border-color: var(--primary-color);
    background: linear-gradient(135deg, #fff 0%, #f8fafc 100%);
}

.download-option.premium::before {
    content: '推荐';
    position: absolute;
    top: 1rem;
    right: -0.5rem;
    background: var(--gradient-pink);
    color: white;
    padding: 0.25rem 1rem;
    font-size: 0.8rem;
    font-weight: 600;
    transform: rotate(15deg);
    border-radius: 4px;
}

/* 紧凑版付费选项 - 减少推荐力度 */
.download-option.premium.compact {
    transform: scale(0.95);
    opacity: 0.9;
    border-color: #d1d5db;
    background: #f9fafb;
}

.download-option.premium.compact::before {
    display: none; /* 隐藏推荐标签 */
}

.download-option.premium.compact:hover {
    transform: scale(0.95) translateY(-2px);
    opacity: 1;
    border-color: var(--primary-color);
}

/* 选项头部 */
.option-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.option-header h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-dark);
    margin: 0;
}

.price {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-color);
}

.download-option.free .price {
    color: #10b981;
}

/* 功能列表 */
.option-features {
    margin-bottom: 2rem;
    text-align: left;
}

.option-features ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.option-features li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    color: var(--text-dark);
    font-size: 0.95rem;
}

.option-features i {
    color: #10b981;
    font-size: 0.9rem;
}

/* 下载按钮 */
.download-btn {
    background: var(--gradient-pink);
    color: var(--white);
    border: none;
    padding: 1rem 2rem;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    box-shadow: var(--shadow);
    width: 100%;
}

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

.download-btn i {
    font-size: 1.2rem;
}

.free-btn {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
}

.premium-btn {
    background: var(--gradient-pink);
}

.download-info {
    margin-top: 1rem;
    display: flex;
    justify-content: space-between;
    color: var(--text-light);
    font-size: 0.85rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .download-options {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .download-container {
        padding: 3rem 1rem;
    }
    
    .download-option {
        padding: 1.5rem;
    }
}

/* 用户区域 */
.user-section {
    background: var(--white);
    margin: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    padding: 2rem;
}

.user-container {
    max-width: 600px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.user-avatar {
    width: 60px;
    height: 60px;
    background: var(--gradient-pink);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.5rem;
}

.user-details h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-dark);
}

.user-details p {
    color: var(--text-light);
    font-size: 0.9rem;
}

.logout-btn {
    background: transparent;
    color: var(--primary-pink);
    border: 2px solid var(--primary-pink);
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    font-weight: 600;
}

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

/* 开发者区域 */
.developer-section {
    background: var(--white);
    margin: 4rem 2rem 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    padding: 3rem 2rem;
}

.developer-container {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.developer-container h3 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 2rem;
    color: var(--text-dark);
}

.developer-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.dev-link {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding: 1.5rem;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    box-shadow: var(--shadow);
}

.dev-link.coolapk {
    background: linear-gradient(135deg, #00d4aa 0%, #00b894 100%);
    color: var(--white);
}

.dev-link.github {
    background: linear-gradient(135deg, #333 0%, #24292e 100%);
    color: var(--white);
}

.dev-link.qq {
    background: linear-gradient(135deg, #12b7f5 0%, #0099e5 100%);
    color: var(--white);
}

.dev-link:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

.dev-link i {
    font-size: 1.5rem;
}

.copyright {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-top: 2rem;
}

/* 模态框 */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
}

.modal-content {
    background-color: var(--white);
    margin: 5% auto;
    padding: 0;
    border-radius: var(--border-radius);
    width: 90%;
    max-width: 450px;
    box-shadow: var(--shadow-hover);
    animation: modalSlideIn 0.3s ease-out;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-header {
    background: var(--gradient-pink);
    color: var(--white);
    padding: 1.5rem 2rem;
    border-radius: var(--border-radius) var(--border-radius) 0 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h2 {
    font-size: 1.5rem;
    font-weight: 600;
}

.close {
    color: var(--white);
    font-size: 2rem;
    font-weight: bold;
    cursor: pointer;
    transition: var(--transition);
}

.close:hover {
    opacity: 0.7;
}

.auth-form {
    padding: 2rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-dark);
}

.form-group input {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid #e2e8f0;
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-pink);
    box-shadow: 0 0 0 3px rgba(255, 107, 157, 0.1);
}

.auth-btn {
    width: 100%;
    background: var(--gradient-pink);
    color: var(--white);
    border: none;
    padding: 1rem;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    margin-bottom: 1rem;
}

.auth-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.auth-switch {
    text-align: center;
    color: var(--text-light);
}

.auth-switch a {
    color: var(--primary-pink);
    text-decoration: none;
    font-weight: 600;
}

.auth-switch a:hover {
    text-decoration: underline;
}

/* 验证码输入区域 */
.verification-input {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.verification-input input {
    flex: 1;
    margin-bottom: 0;
}

.send-code-btn {
    padding: 0.75rem 1rem;
    background: var(--gradient-pink);
    color: var(--white);
    border: none;
    border-radius: var(--border-radius);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
    min-width: 100px;
}

.send-code-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(255, 107, 157, 0.3);
}

.send-code-btn:disabled {
    background: #cbd5e0;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.verification-group {
    animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 消息提示 */
.message-box {
    position: fixed;
    top: 100px;
    right: 20px;
    padding: 1rem 1.5rem;
    border-radius: var(--border-radius);
    color: var(--white);
    font-weight: 600;
    z-index: 3000;
    transform: translateX(400px);
    transition: var(--transition);
    box-shadow: var(--shadow);
}

.message-box.show {
    transform: translateX(0);
}

.message-box.success {
    background: linear-gradient(135deg, #48bb78 0%, #38a169 100%);
}

.message-box.error {
    background: linear-gradient(135deg, #f56565 0%, #e53e3e 100%);
}

.message-box.info {
    background: var(--gradient-pink);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-container {
        padding: 1rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .hero-features {
        grid-template-columns: 1fr;
    }
    
    .download-container {
        padding: 3rem 1rem;
    }
    
    .download-container h2 {
        font-size: 2rem;
    }
    
    .developer-links {
        grid-template-columns: 1fr;
    }
    
    .download-info {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .user-container {
        flex-direction: column;
        gap: 1.5rem;
        text-align: center;
    }
}

/* 历史版本链接样式 */
.history-version {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid #e5e7eb;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.history-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-pink);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition);
}

.history-link:hover {
    color: var(--dark-pink);
    transform: translateX(2px);
}

.history-link i {
    font-size: 0.8rem;
}

.extract-code {
    font-size: 0.85rem;
    color: var(--text-light);
    background: #f3f4f6;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
}

@media (max-width: 480px) {
    .nav-menu {
        gap: 0.5rem;
    }
    
    .nav-btn {
        padding: 0.5rem 1rem;
        font-size: 0.9rem;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .download-btn {
        padding: 1rem 2rem;
        font-size: 1rem;
    }
}