.public-body{background:linear-gradient(145deg,#f7f8fb 0%,#eef2f8 100%);min-height:100vh}.public-header{max-width:980px;margin:auto;padding:24px 22px;display:flex;align-items:center;justify-content:space-between}.public-brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-weight:650}.public-main{width:min(760px,calc(100% - 32px));margin:24px auto 72px}.public-intro{text-align:center;margin:0 auto 28px}.public-intro h1{font-size:clamp(32px,6vw,52px)}.public-intro p{color:var(--muted)}.chat-card,.track-card{background:var(--surface);border:1px solid var(--border);box-shadow:0 22px 70px rgba(30,42,70,.1);border-radius:22px;overflow:hidden}.chat-heading{padding:18px 22px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between}.chat-heading strong,.chat-heading span{display:block}.chat-heading span{color:var(--muted);font-size:12px;margin-top:3px}.online-indicator{color:var(--success)!important}.chat-stream{min-height:235px;max-height:420px;overflow:auto;padding:22px;background:linear-gradient(180deg,var(--surface-2),var(--surface))}.chat-row{display:flex;align-items:flex-end;gap:9px;margin:0 0 16px}.chat-row.user{justify-content:flex-end}.chat-avatar{width:30px;height:30px;border-radius:9px;background:var(--text);color:var(--surface);display:grid;place-items:center;font-size:12px;font-weight:700;flex:0 0 auto}.chat-bubble{max-width:82%;padding:11px 14px;border:1px solid var(--border);border-radius:15px 15px 15px 4px;background:var(--surface);line-height:1.5;white-space:pre-wrap}.chat-row.user .chat-bubble{background:var(--text);color:var(--surface);border-color:var(--text);border-radius:15px 15px 4px 15px}.public-request-form{padding:22px}.chat-input-row{display:flex;gap:9px}.chat-active .chat-step[hidden]{display:none!important}.chat-confirm{text-align:center}.public-privacy{text-align:center;color:var(--muted);font-size:12px;margin:18px}.public-alert{border-radius:14px}.track-card{padding:38px;text-align:center}.track-card h2{margin:22px 0}.track-success{display:grid;place-items:center;width:54px;height:54px;margin:0 auto 18px;border-radius:50%;background:#e6f6ee;color:#16784d;font-size:26px}.track-card dl{display:grid;grid-template-columns:1fr 1fr;gap:10px;text-align:left;background:var(--surface-2);padding:18px;border-radius:14px;margin:24px 0}.track-card dt{color:var(--muted);font-weight:500}.track-card dd{text-align:right;margin:0}@media(max-width:560px){.public-header{padding:18px 16px}.public-main{margin-top:12px}.public-brand span:last-child{display:none}.chat-input-row{display:grid}.chat-card{border-radius:18px}.chat-stream{min-height:260px}.track-card{padding:26px 20px}.track-card dl{grid-template-columns:1fr}.track-card dd{text-align:left;margin-bottom:8px}}