:root{color:#18202e;background:#f4f7fb;font-family:Inter,PingFang SC,Microsoft YaHei,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-synthesis:none;text-rendering:optimizeLegibility}*{box-sizing:border-box}body{min-width:320px;min-height:100vh;margin:0}button,input,textarea{font:inherit}a{color:inherit}main{width:min(1180px,calc(100% - 32px));margin:0 auto;padding:40px 0 56px}.hero{display:grid;gap:28px;margin-bottom:28px;padding:40px;overflow:hidden;color:#fff;background:linear-gradient(135deg,#111c2df5,#1a3952e6),radial-gradient(circle at 75% 20%,rgba(252,184,96,.5),transparent 36%);border-radius:24px}.hero-copy{max-width:760px}.eyebrow{margin:0 0 10px;color:#e28f36;font-size:.78rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase}h1,h2,h3,p{margin-top:0}h1{max-width:820px;margin-bottom:18px;font-size:clamp(2.35rem,6vw,4.75rem);line-height:1.04}.hero p{margin-bottom:0;color:#ffffffd1;font-size:1.08rem;line-height:1.8}.status-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}.status-strip span{min-height:48px;padding:14px 16px;color:#ffffffe6;background:#ffffff1f;border:1px solid rgba(255,255,255,.16);border-radius:14px;text-align:center}.workspace{display:grid;grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);gap:24px;align-items:start}.form-panel,.list-panel{padding:28px;background:#fff;border:1px solid #dde5ef;border-radius:20px;box-shadow:0 18px 50px #19253614}.section-heading{margin-bottom:24px}.section-heading h2{margin-bottom:10px;font-size:1.45rem}.section-heading p:not(.eyebrow){margin-bottom:0;color:#5c6878;line-height:1.7}label{display:grid;gap:8px;margin-bottom:18px;color:#273447;font-weight:700}label span{font-size:.92rem}input,textarea{width:100%;color:#18202e;background:#f8fafc;border:1px solid #d8e1ec;border-radius:12px;outline:0;transition:border-color .16s ease,box-shadow .16s ease,background .16s ease}input{min-height:46px;padding:0 14px}textarea{min-height:112px;padding:13px 14px;resize:vertical}input:focus,textarea:focus{background:#fff;border-color:#d47a2b;box-shadow:0 0 0 4px #d47a2b26}.field-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.primary-button{width:100%;min-height:50px;margin-top:4px;color:#fff;background:#d96f1d;border:0;border-radius:12px;cursor:pointer;font-weight:800;transition:transform .16s ease,background .16s ease}.primary-button:hover:not(:disabled){background:#bd5f17;transform:translateY(-1px)}.primary-button:disabled{cursor:not-allowed;opacity:.68}.result-box,.empty-state{margin-top:18px;padding:16px;border-radius:14px;line-height:1.65}.result-box p,.result-box ul{margin:6px 0 0}.result-box.success{color:#0e5f41;background:#eaf8f1;border:1px solid #b8ead2}.result-box.error,.empty-state.error{color:#9b2828;background:#fff0f0;border:1px solid #f3c2c2}.empty-state{color:#5c6878;background:#f8fafc;border:1px dashed #cfd9e6}.friend-grid{display:grid;gap:14px}.friend-card{display:grid;grid-template-columns:58px 1fr;gap:14px;padding:16px;text-decoration:none;background:#f9fbfe;border:1px solid #dde5ef;border-radius:16px;transition:border-color .16s ease,transform .16s ease,box-shadow .16s ease}.friend-card:hover{border-color:#e28f36;box-shadow:0 14px 28px #19253614;transform:translateY(-2px)}.friend-card img,.avatar-fallback{width:58px;height:58px;border-radius:16px}.friend-card img{object-fit:cover;background:#e8eef6}.avatar-fallback{display:grid;place-items:center;color:#fff;background:#243447;font-size:1.4rem;font-weight:800}.friend-card h3{margin-bottom:6px;font-size:1.04rem}.friend-card p{margin-bottom:8px;color:#5c6878;line-height:1.55}.friend-card span{display:block;overflow:hidden;color:#d96f1d;font-size:.88rem;text-overflow:ellipsis;white-space:nowrap}code{color:#bd5f17;background:#fff4e9;border-radius:6px;padding:2px 5px}@media(max-width:900px){main{width:min(100% - 24px,720px);padding-top:24px}.hero{padding:28px;border-radius:20px}.status-strip,.workspace,.field-grid{grid-template-columns:1fr}}