* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; background: #f4f7fc; color: #1a2332; line-height: 1.6; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* 渐变导航 */
header { background: linear-gradient(135deg, #0b1a33 0%, #1e3a6f 100%); padding: 14px 0; border-bottom: 2px solid #3b82f6; position: sticky; top: 0; z-index: 100; box-shadow: 0 4px 20px rgba(11,26,51,0.3); }
header .container { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; }
.logo { display: flex; align-items: center; gap: 8px; color: #fff; font-size: 1.2rem; font-weight: 700; letter-spacing: 1px; }
.logo img { width: 32px; height: 32px; border-radius: 6px; }
.nav-links { display: flex; flex-wrap: wrap; gap: 12px; }
.nav-links a { color: #cfddf5; text-decoration: none; font-size: 0.95rem; padding: 6px 14px; border-radius: 20px; transition: all 0.2s; background: rgba(255,255,255,0.05); }
.nav-links a:hover { background: rgba(59,130,246,0.3); color: #fff; }

/* H1 */
h1 { font-size: 2.4rem; font-weight: 800; background: linear-gradient(135deg, #0b1a33, #1e3a6f); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; text-align: center; padding: 50px 20px 20px; margin: 0; }
h1 small { display: block; font-size: 1rem; font-weight: 400; -webkit-text-fill-color: #4a5a7a; margin-top: 10px; }

/* 卡片通用 */
.card { background: #ffffff; border-radius: 18px; padding: 30px; box-shadow: 0 6px 24px rgba(11,26,51,0.06); transition: transform 0.2s, box-shadow 0.2s; margin-bottom: 30px; }
.card:hover { transform: translateY(-3px); box-shadow: 0 12px 36px rgba(11,26,51,0.1); }
.card h2 { font-size: 1.8rem; color: #0b1a33; border-left: 4px solid #3b82f6; padding-left: 15px; margin-bottom: 25px; }

/* 图片自适应 */
.img-responsive { width: 100%; height: auto; border-radius: 12px; margin: 20px 0; object-fit: cover; }

/* 网格 */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 30px; }
@media (max-width: 768px) { .grid-2, .grid-3 { grid-template-columns: 1fr; } }

/* 新闻卡片 */
.news-item { padding: 20px 0; border-bottom: 1px solid #e9edf2; }
.news-item:last-child { border-bottom: none; }
.news-date { color: #3b82f6; font-size: 0.9rem; font-weight: 500; margin-bottom: 6px; }
.news-item h3 { font-size: 1.2rem; margin-bottom: 8px; color: #0b1a33; }
.news-item p { color: #4a5a7a; font-size: 0.95rem; }

/* 按钮 */
.btn { display: inline-block; padding: 12px 32px; background: linear-gradient(135deg, #1e3a6f, #3b82f6); color: #fff; border-radius: 40px; font-weight: 600; text-decoration: none; transition: 0.2s; border: none; cursor: pointer; }
.btn:hover { background: linear-gradient(135deg, #3b82f6, #1e3a6f); transform: scale(1.02); }

/* 页脚 */
footer { background: #0b1a33; color: #b0c4de; padding: 50px 20px 30px; margin-top: 60px; }
footer a { color: #7a9bd4; text-decoration: none; }
footer .footer-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 40px; }
@media (max-width: 768px) { footer .footer-grid { grid-template-columns: 1fr; } }
footer .footer-links a { display: block; margin: 6px 0; font-size: 0.9rem; }
footer .copy { text-align: center; border-top: 1px solid #1e3a6f; padding-top: 20px; margin-top: 30px; font-size: 0.85rem; }

/* 徽标 */
.badge { background: #3b82f6; color: #fff; padding: 4px 12px; border-radius: 20px; font-size: 0.75rem; font-weight: 600; display: inline-block; margin-bottom: 8px; }

/* FAQ */
.faq-q { font-weight: 700; color: #0b1a33; margin: 20px 0 8px; font-size: 1.1rem; }
.faq-a { color: #3b4a62; padding-left: 10px; border-left: 2px solid #e0e7ef; margin-bottom: 20px; }

/* Hero */
.hero { background: linear-gradient(145deg, #eef4fb 0%, #ffffff 100%); border-radius: 24px; padding: 60px 40px; margin-bottom: 30px; text-align: center; }
.hero h2 { font-size: 2.2rem; color: #0b1a33; margin-bottom: 20px; border-left: none; }
.hero p { max-width: 700px; margin: 0 auto 25px; color: #3b4a62; font-size: 1.05rem; }

/* 统计块 */
.stat-block { text-align: center; padding: 20px; }
.stat-number { font-size: 2.8rem; font-weight: 800; color: #3b82f6; }
.stat-label { color: #4a5a7a; font-size: 0.95rem; }