/* /lib/python_project/web_service/static/css/style.css */
:root {
    --primary-color: #BED7E7;
    --accent-color: #2B83F6;
    --secondary-color: #8BC3F7;
    --dark-color: #2C3E50;
    --light-color: #F8F9FA;
    --text-color: #333333;
    --border-radius: 12px;
    --box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    min-height: 100vh;
}

/* 云彩背景效果 */
.cloud-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(circle at 20% 80%, rgba(190, 215, 231, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(139, 195, 247, 0.2) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(43, 131, 246, 0.1) 0%, transparent 50%);
    z-index: -1;
}

/* 导航栏样式 */
.navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(190, 215, 231, 0.3);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

.logo {
    height: 50px;
    transition: var(--transition);
}

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

/* 英雄区域 */
.hero-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 50%, var(--accent-color) 100%);
    color: white;
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

.hero-section::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 1200 120" preserveAspectRatio="none"><path d="M321.39,56.44c58-10.79,114.16-30.13,172-41.86,82.39-16.72,168.19-17.73,250.45-.39C823.78,31,906.67,72,985.66,92.83c70.05,18.48,146.53,26.09,214.34,3V0H0V27.35A600.21,600.21,0,0,0,321.39,56.44Z" fill="white" opacity="0.1"></path></svg>');
    background-size: cover;
    background-position: center;
}

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

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
}

.hero-subtitle {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

/* 搜索框样式 */
.search-container {
    max-width: 700px;
    margin: 0 auto;
}

.search-box {
    background: rgba(255, 255, 255, 0.95);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--box-shadow);
    backdrop-filter: blur(10px);
}

.search-input {
    border: 2px solid var(--primary-color);
    border-radius: 50px;
    padding: 15px 25px;
    font-size: 1.1rem;
    transition: var(--transition);
}

.search-input:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 0.2rem rgba(43, 131, 246, 0.25);
}

.search-btn {
    background: linear-gradient(135deg, var(--accent-color), var(--secondary-color));
    border: none;
    border-radius: 50px;
    padding: 15px 30px;
    color: white;
    font-weight: 600;
    transition: var(--transition);
}

.search-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(43, 131, 246, 0.4);
}

/* 卡片样式 */
.feature-card {
    background: white;
    border-radius: var(--border-radius);
    padding: 2rem;
    text-align: center;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    border: 1px solid rgba(190, 215, 231, 0.3);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* 公众号样式 */
.official-section {
    background: linear-gradient(135deg, #ffffff 0%, var(--primary-color) 100%);
    position: relative;
}

.official-card {
    background: white;
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--box-shadow);
    text-align: center;
    border: 2px solid var(--primary-color);
}

.qr-code {
    width: 300px;
    height: 300px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
    border: 5px solid white;
}

.qr-code:hover {
    transform: scale(1.05);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.2);
}

/* 结果项样式 */
.result-item {
    background: white;
    border-radius: var(--border-radius);
    padding: 1.5rem;
    margin-bottom: 1rem;
    box-shadow: var(--box-shadow);
    border-left: 5px solid var(--accent-color);
    transition: var(--transition);
}

.result-item:hover {
    transform: translateX(10px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.resource-info {
    background: white;
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--box-shadow);
    margin-bottom: 2rem;
    border: 1px solid rgba(190, 215, 231, 0.5);
}

/* 按钮样式 */
.btn-primary {
    background: linear-gradient(135deg, var(--accent-color), var(--secondary-color));
    border: none;
    border-radius: 25px;
    padding: 10px 25px;
    font-weight: 600;
    transition: var(--transition);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(43, 131, 246, 0.4);
}

.download-btn {
    border-radius: 20px;
    margin: 0.3rem;
    font-weight: 500;
    transition: var(--transition);
}

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

/* 页脚样式 */
.footer {
    background: var(--dark-color);
    color: white;
    padding: 3rem 0 2rem;
    margin-top: 4rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

    .qr-code {
        width: 250px;
        height: 250px;
    }

    .search-input {
        font-size: 1rem;
        padding: 12px 20px;
    }
}

/* 动画效果 */
@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

.floating {
    animation: float 3s ease-in-out infinite;
}

.fade-in {
    animation: fadeIn 0.8s ease-in;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}