/* =========================
 * 公共样式 - 所有页面共享
 * ========================= */

:root {
    /* ===== 可修改关键位置：修改主色调 ===== */
    --main-color: #FF69B4;
    --bg-color: #F9F9F9;
    --soft-gray: #E8E8E8;
    --text-dark: #444;
    --card-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    --card-shadow-hover: 0 8px 18px rgba(0, 0, 0, 0.16);
    --heart-gradient: linear-gradient(135deg, #ff7eb3, #ff4f93);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
    background: radial-gradient(circle at top, #fff0f6, var(--bg-color) 45%, #ffffff 100%);
    color: var(--text-dark);
    padding: 20px;
    overflow-x: hidden;
    position: relative;
    min-height: 100vh;
}

.container {
    max-width: 980px;
    margin: 0 auto;
    display: grid;
    gap: 18px;
}

.card {
    background: rgba(255, 255, 255, 0.95);
    border: 1px solid var(--soft-gray);
    border-radius: 12px;
    box-shadow: var(--card-shadow);
    padding: 18px;
    transition: all 0.3s ease;
    position: relative;
    z-index: 1;
    backdrop-filter: blur(10px);
}

.card:hover {
    box-shadow: var(--card-shadow-hover);
    transform: translateY(-3px) scale(1.02);
}

h1 {
    margin: 0 0 8px;
    color: var(--main-color);
    font-size: 28px;
    display: inline-block;
    position: relative;
}

.footer-text {
    margin: 0;
    line-height: 1.8;
    color: #666;
}

/* 功能链接样式 */
.feature-links {
    text-align: center;
    padding: 20px;
}

.feature-links-title {
    margin: 0 0 15px;
    color: #999;
    font-size: 14px;
}

.feature-links-container {
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
}

.feature-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    color: #fff;
    text-decoration: none;
    border-radius: 25px;
    font-size: 15px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.feature-link-data {
    background: linear-gradient(135deg, #667eea, #764ba2);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.feature-link-data:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
}

.feature-link-ai {
    background: linear-gradient(135deg, #FF69B4, #ff4f93);
    box-shadow: 0 4px 12px rgba(255, 105, 180, 0.3);
}

.feature-link-ai:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 6px 20px rgba(255, 105, 180, 0.4);
}

/* ICP 备案页脚 */
.icp-footer {
    text-align: center;
    padding: 20px 15px;
    margin-top: 20px;
    background: #f9f9f9;
    border-top: 2px solid #e0e0e0;
}

.icp-footer p {
    margin: 8px 0;
    line-height: 1.8;
}

.icp-beian {
    font-size: 15px;
    font-weight: 600;
    color: #333;
}

.icp-beian a {
    color: #333;
    text-decoration: underline;
    transition: all 0.3s ease;
}

.icp-beian a:hover {
    color: var(--main-color);
    text-decoration: none;
}

.icp-link {
    font-size: 13px;
    color: #666;
}

.icp-link a {
    color: #666;
    text-decoration: none;
    border-bottom: 1px dotted #999;
    transition: all 0.3s ease;
}

.icp-link a:hover {
    color: var(--main-color);
    border-bottom-color: var(--main-color);
}

/* 返回链接样式 */
.back-link {
    display: inline-block;
    padding: 10px 20px;
    color: var(--main-color);
    text-decoration: none;
    border-radius: 20px;
    border: 2px solid var(--main-color);
    font-size: 14px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.back-link:hover {
    background: var(--main-color);
    color: #fff;
    transform: scale(1.05);
}

/* 响应式设计 */
@media (max-width: 767px) {
    body {
        padding: 12px;
    }

    h1 {
        font-size: 23px;
    }

    .container {
        gap: 12px;
    }

    .card {
        padding: 14px;
    }
}