/* 失物有迹：蓝白作业风格 */
body { background: #f5f8fc; color: #253858; }
#home { max-width: 1160px; margin: 32px auto; }
#header { padding: 34px 42px; border-radius: 16px; background: linear-gradient(135deg, #1f5fbf, #4d88e8); box-shadow: 0 12px 30px rgba(31,95,191,.18); }
#blogTitle, #blogTitle a, #blogTitle h1, #blogTitle h2 { color: #fff !important; text-shadow: none; }
#blogTitle a { font-size: 30px; font-weight: 800; }
#blogTitle h2 { opacity: .88; font-size: 14px; }
#main { display: flex; gap: 24px; }
#mainContent { background: #fff; border: 1px solid #e4ebf5; border-radius: 14px; box-shadow: 0 8px 24px rgba(35,61,104,.08); padding: 30px; }
.postTitle, .postTitle a { color: #163b72; font-weight: 800; }
.postTitle a:hover, .postBody a { color: #2769c7; }
.post { border-bottom: 1px solid #e8eef7; padding-bottom: 24px; }
.postBody h1, .postBody h2, .postBody h3 { color: #163b72; }
.postBody h2 { border-left: 4px solid #3c7ee7; padding-left: 10px; }
.postBody table { width: 100%; border-collapse: collapse; margin: 16px 0; overflow: hidden; border-radius: 8px; }
.postBody th { background: #edf4ff; color: #163b72; }
.postBody th, .postBody td { border: 1px solid #dce6f4; padding: 10px 12px; }
.postBody pre { border-radius: 10px; }
.postBody img { max-width: 100%; height: auto; border-radius: 8px; }
#sideBar .newsItem, #sideBar .catList { background: #fff; border: 1px solid #e4ebf5; border-radius: 12px; padding: 16px; margin-bottom: 16px; }
#footer { color: #74829a; }