/* ========================================
   现代简洁动漫平台 - 设计系统
   武汉市米拉格罗斯科技有限公司
   ======================================== */

:root {
    --primary-color: #2563eb;
    --secondary-color: #7c3aed;
    --accent-color: #f59e0b;
    --text-dark: #1f2937;
    --text-gray: #6b7280;
    --text-light: #9ca3af;
    --bg-white: #ffffff;
    --bg-light: #f9fafb;
    --bg-gray: #f3f4f6;
    --border-color: #e5e7eb;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Microsoft YaHei', sans-serif;
    background: var(--bg-light);
    color: var(--text-dark);
    line-height: 1.6;
}

/* ========================================
   顶部导航栏 - 简洁固定
   ======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--bg-white);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    box-shadow: var(--shadow-sm);
}

.navbar-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 8px;
}

.navbar-nav {
    display: flex;
    list-style: none;
    gap: 8px;
    align-items: center;
}

.nav-link {
    padding: 8px 16px;
    color: var(--text-gray);
    text-decoration: none;
    border-radius: 6px;
    transition: all 0.2s;
    font-size: 0.95rem;
    font-weight: 500;
}

.nav-link:hover {
    background: var(--bg-gray);
    color: var(--text-dark);
}

.navbar-toggler {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-dark);
}

/* ========================================
   主内容区域
   ======================================== */
.main-container {
    margin-top: 64px;
    min-height: calc(100vh - 64px);
}

/* ========================================
   Hero Section - 简洁大气
   ======================================== */
.hero-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 80px 24px;
    text-align: center;
}

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

.hero-title {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 24px;
    line-height: 1.2;
}

.hero-description {
    font-size: 1.25rem;
    opacity: 0.95;
    margin-bottom: 32px;
    line-height: 1.8;
}

.hero-cta {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    padding: 12px 32px;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s;
    display: inline-block;
    font-size: 1rem;
}

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

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

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

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

/* ========================================
   内容区域
   ======================================== */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 60px 24px;
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 12px;
    text-align: center;
}

.section-subtitle {
    color: var(--text-gray);
    text-align: center;
    margin-bottom: 48px;
    font-size: 1.1rem;
}

/* ========================================
   卡片系统
   ======================================== */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
    margin-bottom: 48px;
}

.card {
    background: var(--bg-white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all 0.3s;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.card-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    background: var(--bg-gray);
}

.card-body {
    padding: 24px;
}

.card-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.card-text {
    color: var(--text-gray);
    margin-bottom: 16px;
    line-height: 1.6;
}

.card-actions {
    display: flex;
    gap: 12px;
}

.btn-sm {
    padding: 8px 20px;
    font-size: 0.9rem;
}

/* ========================================
   漫画查看器
   ======================================== */
.comic-viewer {
    background: var(--bg-white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    margin-bottom: 48px;
}

.comic-header {
    padding: 32px;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
}

.comic-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--text-dark);
    margin-bottom: 16px;
}

.comic-description {
    color: var(--text-gray);
    max-width: 800px;
    margin: 0 auto 24px;
    line-height: 1.8;
    font-size: 1.1rem;
}

.comic-images {
    padding: 24px;
}

.comic-image-item {
    margin-bottom: 16px;
    border-radius: 8px;
    overflow: hidden;
}

.comic-image {
    width: 100%;
    display: block;
}

/* ========================================
   信息展示
   ======================================== */
.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    margin-bottom: 48px;
}

.info-card {
    background: var(--bg-white);
    padding: 24px;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
}

.info-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 16px;
}

.info-card p {
    color: var(--text-gray);
    margin-bottom: 12px;
}

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

/* ========================================
   表单样式
   ======================================== */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.2s;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* ========================================
   Footer - 简洁
   ======================================== */
footer {
    background: var(--bg-white);
    border-top: 1px solid var(--border-color);
    padding: 48px 24px 24px;
    margin-top: 60px;
}

.footer-content {
    max-width: 1280px;
    margin: 0 auto;
    text-align: center;
}

.footer-content p {
    color: var(--text-gray);
    margin-bottom: 8px;
}

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

.footer-content a:hover {
    text-decoration: underline;
}

/* ========================================
   响应式设计
   ======================================== */
@media (max-width: 768px) {
    .navbar-nav {
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--bg-white);
        flex-direction: column;
        padding: 16px;
        box-shadow: var(--shadow-lg);
        display: none;
        gap: 4px;
    }
    
    .navbar-nav.show {
        display: flex;
    }
    
    .navbar-toggler {
        display: block;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-description {
        font-size: 1.1rem;
    }
    
    .card-grid {
        grid-template-columns: 1fr;
    }
    
    .info-grid {
        grid-template-columns: 1fr;
    }
}

/* ========================================
   工具类
   ======================================== */
.text-center {
    text-align: center;
}

.mb-4 {
    margin-bottom: 24px;
}

.mt-4 {
    margin-top: 24px;
}