:root{--blue: #4A90D9;--blue-2: #3D8FD4;--ink: #1F4A6E;--muted: #7AA8C9;--bg: #E8F4FC;--card: #ffffff;--danger: #C45656;--ok: #2F9E6A;--line: rgba(61, 143, 212, .16);--radius: 14px;--tab-h: calc(56px + env(safe-area-inset-bottom, 0px)) }*{box-sizing:border-box}html,body,#app{margin:0;min-height:100%;background:#d6eefb;color:var(--ink);font-family:PingFang SC,Microsoft YaHei,system-ui,sans-serif;-webkit-tap-highlight-color:transparent}button,input,textarea,select{font:inherit;color:inherit}a{color:var(--blue-2);text-decoration:none}img{max-width:100%;display:block}.phone-shell{min-height:100vh;max-width:480px;margin:0 auto;background:linear-gradient(180deg,#d6eefb 0%,var(--bg) 140px,var(--bg) 100%);position:relative}.page{padding:12px 16px 24px}.page.with-tab{padding-bottom:calc(24px + var(--tab-h))}.nav{display:flex;align-items:center;gap:8px;min-height:46px;padding:6px 12px;color:#fff;background:var(--blue);position:sticky;top:0;z-index:20}.nav .back{width:32px;height:32px;border:0;background:transparent;color:#fff;font-size:22px;cursor:pointer}.nav .title{flex:1;font-weight:650;font-size:16px;text-align:center;padding-right:32px}.card{background:var(--card);border-radius:var(--radius);padding:14px;box-shadow:0 8px 24px #3d8fd414}.btn{display:flex;align-items:center;justify-content:center;width:100%;min-height:44px;border:0;border-radius:12px;background:var(--blue);color:#fff;font-weight:650;cursor:pointer}.btn.off,.btn:disabled{opacity:.45;cursor:not-allowed}.btn.ghost{background:#eaf4fc;color:var(--blue-2)}.btn.danger{background:var(--danger)}.btn.sm{width:auto;min-height:32px;padding:0 12px;font-size:13px}.input,.textarea,.select{width:100%;border:1px solid var(--line);border-radius:10px;padding:10px 12px;background:#fff;outline:none}.textarea{min-height:96px;resize:vertical}.muted{color:var(--muted);font-size:13px}.empty{text-align:center;color:var(--muted);padding:48px 16px}.row{display:flex;align-items:center;gap:8px}.grow{flex:1;min-width:0}.chip{display:inline-flex;align-items:center;padding:4px 10px;border-radius:999px;background:#eaf4fc;color:var(--blue-2);font-size:12px}.list-item{display:flex;gap:12px;padding:12px 0;border-bottom:1px solid var(--line)}.avatar{width:44px;height:44px;border-radius:50%;object-fit:cover;background:#dceef9}.mask{position:fixed;top:0;right:0;bottom:0;left:0;background:#0f284673;z-index:40;display:flex;align-items:flex-end;justify-content:center}.sheet{width:min(480px,100%);background:#fff;border-radius:18px 18px 0 0;padding:16px 16px calc(16px + env(safe-area-inset-bottom,0px));max-height:80vh;overflow:auto}.dialog{width:min(360px,calc(100% - 40px));margin:auto;background:#fff;border-radius:16px;padding:20px 16px 16px}.toast{position:fixed;left:50%;bottom:88px;transform:translate(-50%);background:#1f4a6eeb;color:#fff;padding:10px 16px;border-radius:10px;z-index:80;font-size:14px;max-width:80%}.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:10px}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}.grid-5{display:grid;grid-template-columns:repeat(5,1fr);gap:8px}.tabbar{position:fixed;left:50%;bottom:0;transform:translate(-50%);width:min(480px,100%);height:var(--tab-h);padding-bottom:env(safe-area-inset-bottom,0px);background:#f5fbff;border-top:1px solid #e6f2fa;display:flex;z-index:30}.tabbar a{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;color:var(--muted);font-size:11px}.tabbar a.on{color:var(--blue-2);font-weight:650}.tabbar .ico{font-size:20px;line-height:1}.badge{min-width:16px;height:16px;padding:0 4px;border-radius:8px;background:#e85d5d;color:#fff;font-size:10px;display:inline-flex;align-items:center;justify-content:center}.imgs{display:grid;gap:6px;margin-top:8px}.imgs.g1{grid-template-columns:1fr}.imgs.g2{grid-template-columns:1fr 1fr}.imgs.g3{grid-template-columns:1fr 1fr 1fr}.imgs img{width:100%;height:88px;object-fit:cover;border-radius:8px;background:#eef6fb}.imgs.g1 img{height:180px}.chat-page{display:flex;flex-direction:column;height:calc(100vh - 46px)}.chat-list{flex:1;overflow:auto;padding:12px 12px 8px}.bubble{max-width:78%;padding:8px 12px;border-radius:12px;margin:6px 0;background:#fff;white-space:pre-wrap;word-break:break-word}.bubble.me{margin-left:auto;background:#d6eefb}.composer{display:flex;gap:8px;padding:8px 12px calc(8px + env(safe-area-inset-bottom,0px));background:#fff;border-top:1px solid var(--line)}.composer input{flex:1}.composer .btn{width:auto;padding:0 16px;min-height:38px}.tools{display:grid;grid-template-columns:repeat(4,1fr);gap:12px 6px}.tool{display:flex;flex-direction:column;align-items:center;gap:6px;font-size:12px;color:var(--ink);background:none;border:0;cursor:pointer}.tool-icon{font-size:22px}.cell{display:flex;flex-direction:column;align-items:center;gap:6px;padding:10px 0;background:none;border:0;cursor:pointer;color:var(--ink)}.cell .emoji{width:48px;height:48px;border-radius:16px;display:flex;align-items:center;justify-content:center;font-size:24px;background:#fff;box-shadow:0 6px 16px #3d8fd41f}.tabs{display:flex;gap:8px;overflow:auto;padding:4px 0 10px}.tabs .t{flex:none;border:0;background:#fff;color:var(--muted);border-radius:999px;padding:6px 12px;cursor:pointer}.tabs .t.on{background:var(--blue);color:#fff}