*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}
html,body{width:100%;min-height:100%;background:#dfe4dd;color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"SF Pro Text","PingFang SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif}
html[data-font-scale="compact"]{--font-scale:.94}html[data-font-scale="large"]{--font-scale:1.1}
body{overflow:hidden;font-size:calc(15px * var(--font-scale));line-height:1.55;font-feature-settings:"tnum" 1;font-synthesis:none}
button,input,select,textarea{font:inherit;color:inherit}button{border:0;background:none;cursor:pointer;touch-action:manipulation}button:disabled{cursor:not-allowed;opacity:.48}svg{display:block;flex:none}
button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid rgba(94,134,168,.45);outline-offset:2px}
.skip-link{position:absolute;left:16px;top:-72px;z-index:400;background:var(--surface);border:2px solid var(--forest);border-radius:12px;color:var(--forest);padding:10px 14px;font-weight:800}.skip-link:focus{top:12px}
.app-shell{position:relative;width:100%;max-width:430px;height:100dvh;margin:0 auto;background:var(--bg);overflow:hidden;box-shadow:0 0 0 1px rgba(31,45,38,.06),var(--shadow-lift)}
.top-bar{height:var(--top-h);display:flex;align-items:center;gap:8px;padding:7px 16px;background:rgba(247,246,242,.96);border-bottom:1px solid var(--line);position:relative;z-index:20}
.screen-root{height:calc(100dvh - var(--top-h) - var(--nav-h) - var(--safe-bottom));overflow-y:auto;overflow-x:hidden;-webkit-overflow-scrolling:touch;padding:20px 16px 36px;scroll-padding-bottom:106px}.screen-root:focus{outline:none}.screen-root::-webkit-scrollbar{display:none}
.bottom-nav{height:calc(var(--nav-h) + var(--safe-bottom));padding:6px 8px calc(7px + var(--safe-bottom));display:grid;grid-template-columns:repeat(5,1fr);gap:2px;background:rgba(255,255,255,.98);border-top:1px solid var(--line);position:relative;z-index:30}