/* 小红书卡片样式 */

/* CSS 变量定义 */
:root {
    --primary-color: #ff2442;
    --primary-light: #ff6b81;
    --text-primary: #1e293b;
    --text-secondary: #334155;
    --text-muted: #64748b;
    --text-light: #475569;
    --background-light: #f8fafc;
    --background-gray: #f1f5f9;
    --border-color: #e2e8f0;
    --border-radius: 25px;
    --card-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    --font-family: 'Source Han Sans CN', 'PingFang SC', 'Microsoft YaHei', -apple-system, sans-serif;
}

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

body {
    font-family: var(--font-family);
    background: transparent;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ========================
   封面卡片样式
   ======================== */

.cover-container {
    width: 1080px;
    height: 1440px;
    background: linear-gradient(180deg, #f3f3f3 0%, #f9f9f9 100%);
    position: relative;
    overflow: hidden;
}

.cover-inner {
    position: absolute;
    width: 950px;
    height: 1310px;
    left: 65px;
    top: 65px;
    background: #F3F3F3;
    border-radius: var(--border-radius);
    display: flex;
    flex-direction: column;
    padding: 60px 85px;
}

.cover-emoji {
    font-size: 180px;
    line-height: 1.2;
    margin-bottom: 40px;
}

.cover-title {
    font-weight: 900;
    font-size: 130px;
    line-height: 1.35;
    background: linear-gradient(180deg, #111827 0%, #4B5563 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: auto;
    word-break: break-all;
}

.cover-subtitle {
    font-weight: 350;
    font-size: 72px;
    line-height: 1.4;
    color: #000000;
    margin-top: auto;
    padding-bottom: 20px;
}

/* ========================
   正文卡片样式
   ======================== */

.card-container {
    width: 1080px;
    min-height: 1440px;
    background: linear-gradient(180deg, #f3f3f3 0%, #f9f9f9 100%);
    position: relative;
    padding: 50px;
    overflow: hidden;
}

.card-inner {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 20px;
    padding: 60px;
    min-height: calc(1440px - 100px);
    box-shadow: var(--card-shadow);
    backdrop-filter: blur(10px);
}

/* Markdown 内容样式 */
.card-content {
    color: var(--text-light);
    font-size: 42px;
    line-height: 1.7;
}

.card-content h1 {
    font-size: 72px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 40px;
    line-height: 1.3;
}

.card-content h2 {
    font-size: 56px;
    font-weight: 600;
    color: var(--text-secondary);
    margin: 50px 0 25px 0;
    line-height: 1.4;
}

.card-content h3 {
    font-size: 48px;
    font-weight: 600;
    color: var(--text-light);
    margin: 40px 0 20px 0;
}

.card-content p {
    margin-bottom: 35px;
}

.card-content strong {
    font-weight: 700;
    color: var(--text-primary);
}

.card-content em {
    font-style: italic;
    color: var(--primary-color);
}

.card-content a {
    color: var(--primary-color);
    text-decoration: none;
    border-bottom: 2px solid var(--primary-color);
}

.card-content ul,
.card-content ol {
    margin: 30px 0;
    padding-left: 60px;
}

.card-content li {
    margin-bottom: 20px;
    line-height: 1.6;
}

.card-content blockquote {
    border-left: 8px solid var(--primary-color);
    padding-left: 40px;
    background: var(--background-gray);
    padding-top: 25px;
    padding-bottom: 25px;
    margin: 35px 0;
    color: var(--text-muted);
    font-style: italic;
    border-radius: 0 12px 12px 0;
}

.card-content blockquote p {
    margin: 0;
}

.card-content code {
    background: var(--background-gray);
    padding: 6px 16px;
    border-radius: 8px;
    font-family: 'SF Mono', 'Monaco', 'Consolas', monospace;
    font-size: 38px;
    color: var(--primary-color);
}

.card-content pre {
    background: var(--text-primary);
    color: #e2e8f0;
    padding: 40px;
    border-radius: 16px;
    margin: 35px 0;
    overflow-x: visible;
    overflow-wrap: break-word;
    word-wrap: break-word;
    word-break: break-all;
    white-space: pre-wrap;
    font-size: 36px;
    line-height: 1.5;
}

.card-content pre code {
    background: transparent;
    color: inherit;
    padding: 0;
    font-size: inherit;
}

.card-content img {
    max-width: 100%;
    height: auto;
    border-radius: 16px;
    margin: 35px auto;
    display: block;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.card-content hr {
    border: none;
    height: 2px;
    background: var(--border-color);
    margin: 50px 0;
}

/* Tags 标签样式 */
.card-content .tags {
    margin-top: 50px;
    padding-top: 30px;
    border-top: 2px solid var(--border-color);
}

.card-content .tag {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    color: white;
    padding: 12px 28px;
    border-radius: 30px;
    font-size: 34px;
    margin: 10px 15px 10px 0;
    font-weight: 500;
}

/* 信息卡片样式 */
.info-card {
    margin: 40px 0;
    padding: 40px 50px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.12) 0%, rgba(139, 92, 246, 0.12) 100%);
    border: 2px solid rgba(99, 102, 241, 0.2);
    border-radius: 20px;
    box-shadow: 0 4px 20px rgba(99, 102, 241, 0.1);
}

.info-card.success {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.12) 0%, rgba(5, 150, 105, 0.12) 100%);
    border-color: rgba(16, 185, 129, 0.2);
}

.info-card.warning {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.12) 0%, rgba(217, 119, 6, 0.12) 100%);
    border-color: rgba(245, 158, 11, 0.2);
}

.info-card.error {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.12) 0%, rgba(220, 38, 38, 0.12) 100%);
    border-color: rgba(239, 68, 68, 0.2);
}

/* 页码样式 */
.page-number {
    position: absolute;
    bottom: 80px;
    right: 80px;
    font-size: 36px;
    color: rgba(255, 255, 255, 0.8);
    font-weight: 500;
}

/* ========================
   渐变背景预设
   ======================== */

.bg-gradient-1 {
    background: linear-gradient(180deg, #3450E4 0%, #D266DA 100%);
}

.bg-gradient-2 {
    background: linear-gradient(180deg, #f3f3f3 0%, #f9f9f9 100%);
}

.bg-gradient-3 {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.bg-gradient-4 {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

.bg-gradient-5 {
    background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
}

.bg-gradient-6 {
    background: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
}

.bg-gradient-7 {
    background: linear-gradient(135deg, #ff9a9e 0%, #fecfef 100%);
}

.bg-gradient-8 {
    background: linear-gradient(135deg, #a8edea 0%, #fed6e3 100%);
}