:root{--app-bg: #f4f7fb;--panel-bg: #ffffff;--panel-border: #e6ebf2;--brand: #24b36b;--brand-dark: #169153;--text-main: #1f2a37;--text-sub: #667085;--danger: #e84d4f}*{box-sizing:border-box}html,body,#app{min-height:100%}body{margin:0;color:var(--text-main);background:radial-gradient(circle at top left,rgba(36,179,107,.14),transparent 28%),radial-gradient(circle at top right,rgba(51,126,255,.12),transparent 26%),linear-gradient(180deg,#f8fbff 0%,var(--app-bg) 100%);font-family:PingFang SC,Microsoft YaHei,sans-serif}a{color:inherit}.page-shell{width:min(1180px,calc(100% - 32px));margin:32px auto}.panel-card{border-radius:18px;box-shadow:0 12px 36px #0f172a0f}.section-title{margin:0;font-size:24px;font-weight:600}.section-desc{margin-top:8px;color:var(--text-sub);font-size:14px}.link-button{color:var(--brand);cursor:pointer}