:root{--bg-start: #f2f8ef;--bg-end: #eaf4ff;--card-bg: rgba(255, 255, 255, .9);--text-main: #22313f;--text-sub: #587082;--accent: #2a8f6a;--accent-2: #ff9f43}*{box-sizing:border-box}html,body,#app{margin:0;min-height:100%;font-family:PingFang SC,Noto Sans SC,Microsoft YaHei,sans-serif;color:var(--text-main);background:linear-gradient(135deg,var(--bg-start) 0%,var(--bg-end) 100%)}.page-shell{padding:20px}.panel-card{background:var(--card-bg);border-radius:16px;box-shadow:0 10px 30px #10233914}.page-title{font-size:24px;font-weight:700;margin:0}.page-subtitle{margin:8px 0 0;color:var(--text-sub)}@media(max-width:860px){.page-shell{padding:12px}}