*,:after,:before{box-sizing:border-box;margin:0;padding:0}:root{--bg-page:#FEF7EF;--bg-header:#FFFFFF;--bg-content:transparent;--bg-video-btn:linear-gradient(rgb(137,187,249),rgb(62,135,247));--bg-video-btn-hover:linear-gradient(rgb(144,180,227),rgb(53,112,214));--bg-orange-btn:linear-gradient(rgb(255,163,93),rgb(239,132,50));--bg-orange-btn-hover:linear-gradient(rgb(255,193,145),rgb(224,111,25));--bg-error:rgb(253,72,61);--bg-warning:rgb(253,247,239);--color-text:rgb(0,0,0);--color-text-secondary:rgb(66,64,65);--color-text-muted:rgb(157,152,143);--color-text-white:rgb(255,255,255);--color-link:rgb(11,7,255);--color-border:rgb(200,201,204);--color-orange:rgb(239,132,50);--color-red:rgb(253,72,61);--color-blue:rgb(65,120,227);--color-blue-light:rgb(197,221,252);--font-primary:"PingFang SC",-apple-system,"system-ui","Helvetica Neue",Helvetica,Arial,"Microsoft YaHei UI","Microsoft YaHei","Segoe UI",Roboto,sans-serif;--font-secondary:"Inter",sans-serif;--radius-sm:4px;--radius-md:8px;--radius-lg:12px;--radius-full:9999px;--header-height:76px}body,html{height:100%;font-family:var(--font-primary);background:var(--bg-page);color:var(--color-text);-webkit-font-smoothing:antialiased;overflow-x:hidden}a{color:var(--color-link);text-decoration:none}button,input,textarea{font-family:inherit}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--color-border);border-radius:3px}.primary-button{background:var(--bg-video-btn);color:var(--color-text-white);border:none;border-radius:var(--radius-sm);padding:5px 10px;cursor:pointer;font-weight:500;transition:background .2s}.primary-button:hover{background:var(--bg-video-btn-hover)}.secondary-button{background:var(--bg-orange-btn);color:var(--color-text-white);border:none;border-radius:var(--radius-sm);padding:5px 10px;cursor:pointer;font-weight:500;transition:background .2s}.secondary-button:hover{background:var(--bg-orange-btn-hover)}.header-btn{padding:10px 16px;font-size:15px}