:root {
    --primary: #0a2540;      /* 科技感深邃蓝 */
    --secondary: #0070f3;    /* 现代活力蓝 */
    --accent: #00df89;       /* 趋势生机绿 */
    --warning: #ff007a;      /* 警示玫红 */
    --light-bg: #f4f6f8;     /* 极简灰底 */
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--light-bg);
    color: #333;
    line-height: 1.7;
}

/* 重新设计的高端 Hero 区域 */
.hero-section {
    background: radial-gradient(circle at top right, rgba(0, 112, 243, 0.15), transparent), 
                linear-gradient(135deg, #0a2540 0%, #001020 100%);
    color: white;
    padding: 120px 0 100px;
    text-align: center;
    position: relative;
    border-bottom: 4px solid var(--secondary);
}

.hero-section h1 {
    font-size: 3.2rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    background: linear-gradient(to right, #ffffff, #8fc1ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section-title {
    font-weight: 700;
    color: var(--primary);
    border-left: 6px solid var(--secondary);
    padding-left: 15px;
    margin: 45px 0 25px;
}

/* 升级版数据中心卡片 */
.card {
    border: none;
    border-radius: 16px;
    background: #ffffff;
    box-shadow: 0 10px 30px rgba(10, 37, 64, 0.05);
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    margin-bottom: 30px;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 40px rgba(10, 37, 64, 0.12);
}

.card-header {
    background: linear-gradient(135deg, var(--primary) 0%, #10355a 100%);
    color: white;
    font-weight: 600;
    padding: 15px 20px;
    border-bottom: none;
}

/* 彻底解决“破图”图标问题：使用优雅的纯 CSS 渐变微标代替旧字体图标 */
.icon-box-new {
    background: linear-gradient(135deg, var(--secondary) 0%, #0051b3 100%);
    color: white;
    width: 70px;
    height: 70px;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 32px;
    box-shadow: 0 8px 20px rgba(0, 112, 243, 0.3);
}

.img-placeholder-wrapper {
    background-color: #eef2f6;
    height: 220px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 20px 0;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid rgba(0,0,0,0.03);
}

.img-placeholder-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* 时间线样式升级 */
.timeline {
    position: relative;
    padding-left: 35px;
    margin: 40px 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 4px;
    top: 5px;
    bottom: 5px;
    width: 3px;
    background: rgba(0, 112, 243, 0.2);
}

.timeline-item {
    position: relative;
    margin-bottom: 35px;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -37px;
    top: 6px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--secondary);
    border: 4px solid #ffffff;
    box-shadow: 0 0 0 3px rgba(0, 112, 243, 0.2);
    z-index: 1;
}

/* FAQ 卡片式折叠 */
.faq-card {
    background: #ffffff;
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 15px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.02);
    border-left: 4px solid var(--secondary);
}

.faq-question {
    font-weight: 600;
    color: var(--primary);
    font-size: 1.1rem;
    cursor: pointer;
}

/* 页脚升级 */
.footer {
    background: #05111f;
    color: rgba(255,255,255,0.7);
    padding: 60px 0 30px;
    margin-top: 80px;
    border-top: 5px solid var(--secondary);
}

.footer h5 {
    color: #ffffff;
    font-weight: 600;
    margin-bottom: 20px;
}

.footer a {
    color: rgba(255,255,255,0.6);
    text-decoration: none;
    transition: color 0.2s;
}

.footer a:hover {
    color: var(--secondary);
}

/* 标签样式 */
.position-badge {
    display: inline-block;
    padding: 6px 16px;
    border-radius: 30px;
    font-size: 13px;
    font-weight: 700;
    margin-right: 8px;
    margin-bottom: 8px;
}

.badge-goalkeeper { background-color: #ffeccf; color: #b25e00; }
.badge-defender { background-color: #d1f7ec; color: #007d5c; }
.badge-midfielder { background-color: #e0f2fe; color: #0369a1; }
.badge-forward { background-color: #ffe4e6; color: #be123c; }

/* 页脚超链接在深邃蓝/现代活力蓝主题下的悬浮效果微调 */
.footer a {
    transition: color 0.2s ease, opacity 0.2s ease;
}

.footer a:hover {
    color: var(--secondary) !important; /* 悬浮时完美切换为活力蓝[cite: 12] */
}

/* 自动化抓取专用域名样式保护 */
#seo-footer-domain {
    color: #ffc107 !important; /* 保持温暖的黄色作为点缀高亮 */
}

#seo-footer-domain:hover {
    opacity: 0.85;
}