:root{--bg-main:#faf6ef;--bg-card:#fff;--green-soft:#a8cfa0;--green-forest:#6fa584;--blue-soft:#a8c8e6;--blue-deep:#6e90b4;--pink-soft:#ebc4c4;--pink-deep:#d49fa5;--yellow-soft:#f3dfa6;--yellow-deep:#d8c27a;--red-soft:#d47f6a;--red-deep:#b5685b;--orange-soft:#e8b98a;--orange-deep:#d69f6a;--brown-soft:#c5a88a;--brown-deep:#9c7d5c;--purple-soft:#b7a4c2;--purple-deep:#8b7da0;--text-primary:#2a2a2a;--text-secondary:#6a6a6a;--header-height:64px}html,body{height:100%;margin:0;padding:0}*,:before,:after{box-sizing:border-box}.root-body{min-height:100vh;color:var(--text-primary);z-index:1;flex-direction:column;font-family:Inter,Segoe UI,Helvetica Neue,Arial,sans-serif;display:flex;position:relative}.site-header{height:var(--header-height);background:var(--blue-soft);z-index:10;flex-shrink:0;position:relative;box-shadow:0 2px 4px #00000012}.nav-bar{justify-content:space-between;align-items:center;max-width:1024px;height:100%;margin:0 auto;padding:0 16px;display:flex}.logo{color:var(--blue-deep);font-size:22px;font-weight:600;text-decoration:none}.nav-links a{color:var(--text-primary);margin-left:24px;font-size:16px;text-decoration:none;transition:color .2s}.nav-links a:hover{color:var(--blue-deep)}.background-fullscreen{z-index:-1;width:100%;height:100%;position:fixed;top:0;left:0;overflow:hidden}.background-mask{background:linear-gradient(#fff9,#fff9),url(/images/OIG4-edit.jpg) 50%/cover no-repeat;width:100%;height:100%}.main-content{z-index:5;flex-direction:column;flex:1;justify-content:center;align-items:center;padding:60px 16px;display:flex;position:relative}.site-footer{text-align:center;color:var(--text-secondary);background:var(--blue-soft);z-index:10;border-top:1px solid #0000000d}