:root{font-family:Inter,"PingFang SC","Microsoft YaHei",system-ui,sans-serif;color:#243831;background:#f5f6f1;font-synthesis:none;--green:#275e47;--green-dark:#1d4936;--muted:#758079;--line:#e2e7de;--paper:#fffefa}
*{box-sizing:border-box}body{margin:0}button,input,textarea{font:inherit}button,a,input,textarea{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:wait;opacity:.55}a{color:inherit;text-decoration:none}button:focus-visible,a:focus-visible{outline:3px solid #8bbaa2;outline-offset:4px}input:focus,textarea:focus{outline:none;border-color:#7ba58d;box-shadow:0 0 0 3px #e7f0e8}[hidden]{display:none!important}.page-shell{max-width:1112px;margin:0 auto;padding:0 40px;min-height:100dvh;display:flex;flex-direction:column}.site-header{height:96px;display:flex;align-items:center;justify-content:space-between;gap:20px;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:11px;font-size:17px;font-weight:650;letter-spacing:.03em}.brand-mark{width:24px;height:24px;background:var(--green);border-radius:8px 8px 8px 2px;position:relative}.brand-mark:after{content:"";position:absolute;width:6px;height:6px;background:#e4ead6;border-radius:50%;left:9px;top:9px}.header-actions{display:flex;align-items:center;gap:20px}.badge{font-size:12px;line-height:1;padding:7px 10px;border:1px solid #dedfca;background:#efefdf;border-radius:20px;color:#777744}.text-button{background:transparent;border:none;padding:7px 0;color:var(--muted);font-size:13px}.text-button:hover{color:var(--green)}main{flex:1}.welcome-view{display:grid;grid-template-columns:1fr 400px;gap:60px;align-items:center;min-height:calc(100dvh - 180px);padding:64px 10px}.eyebrow{font-size:11px;font-weight:600;letter-spacing:.12em;color:var(--muted)}.welcome-copy h1{font-size:50px;line-height:1.45;letter-spacing:-.045em;font-weight:600;margin:20px 0 24px}.welcome-copy p{font-size:15px;line-height:1.95;color:var(--muted)}.login-card{background:var(--paper);border:1px solid var(--line);border-radius:22px;padding:34px;box-shadow:0 12px 38px #35472d05}.card-icon{width:47px;height:47px;display:grid;place-items:center;border:1px solid #e2e9dc;background:#f0f4eb;color:var(--green);border-radius:15px;margin-bottom:26px}.card-icon svg{width:25px;height:25px}h2{font-size:23px;font-weight:600;margin:0 0 10px;letter-spacing:-.025em}.card-description{font-size:14px;color:var(--muted);margin:0 0 29px;line-height:1.7}label{display:block;font-size:13px;font-weight:550;margin-bottom:9px}input{width:100%;border:1px solid var(--line);border-radius:10px;padding:13px 14px;background:#fff;color:inherit;transition:border-color .15s,box-shadow .15s}input::placeholder,textarea::placeholder{color:#9ba39c}.field-hint{font-size:11px;color:var(--muted);line-height:1.7;margin:10px 0 25px}.primary-button{background:var(--green);border:1px solid var(--green);color:#fff;display:flex;align-items:center;justify-content:center;gap:18px;padding:12px 18px;border-radius:10px;font-size:14px;font-weight:500;transition:background .15s}.primary-button:hover:not(:disabled){background:var(--green-dark)}.primary-button span{font-size:18px;font-weight:400}.full-width{width:100%}.site-footer{text-align:center;font-size:11px;line-height:1.8;color:#8b938a;padding:22px 0 26px}.error-message{color:#ad4c39;background:#fcf1eb;border:1px solid #f1ddd1;font-size:12px;line-height:1.7;border-radius:9px;padding:10px 12px;margin:12px 0}.chat-view{max-width:800px;margin:0 auto;padding-top:43px}.chat-heading{display:flex;align-items:center;justify-content:space-between;gap:18px;margin-bottom:24px}.chat-heading h1{font-size:28px;font-weight:600;letter-spacing:-.025em;margin:9px 0 0}.private-label{display:flex;align-items:center;gap:7px;font-size:12px;color:var(--muted);white-space:nowrap}.status-dot{width:6px;height:6px;background:#649b74;border-radius:50%}.event-panel{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;background:#edf1e8;border:1px solid #e2e7da;color:#697864;font-size:11px;padding:10px 13px;border-radius:10px}.event-hint{font-size:11px;line-height:1.8;margin:8px 1px 0;color:#92998c}.message-list{height:min(46dvh,440px);min-height:230px;overflow-y:auto;overscroll-behavior:contain;padding:25px 3px 20px;scrollbar-width:thin;scrollbar-color:#d8dfd1 transparent}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;min-height:100%;padding:24px 20px}.empty-state .empty-glyph{width:46px;height:46px;display:grid;place-items:center;border-radius:50%;background:#eaf0e3;color:#92a17d;font-size:24px;margin-bottom:15px}.empty-state h2{font-size:16px;margin-bottom:9px;color:#74816b}.empty-state p{font-size:12px;color:#969f91;line-height:1.9;margin:0}.message-group{margin-bottom:25px}.message{display:flex;flex-direction:column;align-items:flex-end;gap:7px;margin-bottom:14px}.message.reply{align-items:flex-start}.message-meta{display:flex;align-items:center;gap:9px;flex-wrap:wrap;font-size:10px;color:#929b8e;padding:0 4px}.message-label{color:#75816e}.message-status{background:#e9eee2;padding:3px 7px;border-radius:20px;font-size:10px;color:#718361}.message-status.pending{background:#f0eddc;color:#928548}.message-text{max-width:88%;padding:13px 16px;background:#e7eee0;border:1px solid #dfe7d7;border-radius:15px 15px 3px 15px;font-size:14px;line-height:1.85;white-space:pre-wrap;overflow-wrap:anywhere;word-break:break-word;user-select:text}.reply .message-text{background:var(--paper);border-color:var(--line);border-radius:3px 15px 15px 15px}.composer{background:var(--paper);border:1px solid #dce3d6;border-radius:16px;padding:14px;box-shadow:0 5px 20px #30452904}.composer textarea{border:1px solid transparent;padding:3px 3px 7px;background:transparent;color:inherit;width:100%;display:block;resize:vertical;min-height:82px;max-height:240px;border-radius:6px;font-size:14px;line-height:1.8}.composer textarea:focus{box-shadow:none;border-color:transparent}.composer-bottom{display:flex;align-items:center;justify-content:space-between;gap:10px;padding-top:8px}.keyboard-hint,.character-count{font-size:10px;color:#a1a89a}.composer-actions{display:flex;align-items:center;gap:13px}.send-button{font-size:12px;gap:13px;padding:8px 14px;border-radius:8px}.composer .error-message{margin-bottom:0}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.connect-view{max-width:480px;margin:68px auto}.connect-card{padding:34px}.permission-list{padding-left:20px;font-size:13px;color:#65735e;line-height:2;margin:20px 0 26px}.connect-note{font-size:11px;color:var(--muted);line-height:1.9;margin:18px 0 0}.connect-actions{display:flex;align-items:center;gap:12px;margin-top:22px}.connect-actions .primary-button{flex:1}.secondary-button{display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:10px;background:transparent;padding:12px 17px;font-size:13px;color:#7b8475}.secondary-button:hover{background:#f2f4ee}.connect-card .field-hint{margin-bottom:15px}
@media(max-width:850px){.page-shell{padding:0 28px}.welcome-view{gap:35px;grid-template-columns:1fr 350px;padding:50px 0}.welcome-copy h1{font-size:39px}.login-card{padding:28px}.welcome-copy p{font-size:13px}.chat-view{padding-top:35px}}
@media(max-width:640px){.page-shell{padding:0 20px}.site-header{height:76px}.brand{font-size:16px}.header-actions{gap:16px}.welcome-view{display:flex;flex-direction:column;align-items:stretch;gap:28px;min-height:auto;padding:38px 0 20px}.welcome-copy h1{font-size:34px;line-height:1.4;margin:14px 0}.welcome-copy h1 br{display:none}.welcome-copy p{font-size:13px;line-height:1.85;margin:0}.login-card{border-radius:18px;padding:25px}.card-icon{margin-bottom:20px}.card-description{margin-bottom:23px}.chat-view{padding-top:28px}.chat-heading{margin-bottom:20px}.chat-heading h1{font-size:24px}.eyebrow{font-size:10px}.event-panel{font-size:10px;gap:6px;padding:10px 11px}.event-hint{font-size:10px}.message-list{height:calc(100dvh - 395px);min-height:220px;padding-top:22px}.message-text{max-width:93%;font-size:13px;padding:11px 14px}.composer{padding:12px;border-radius:14px}.composer textarea{font-size:16px;min-height:70px;max-height:170px}.keyboard-hint{display:none}.composer-bottom{justify-content:flex-end}.composer-actions{width:100%;justify-content:space-between}.site-footer{font-size:10px;padding:18px 0 21px}.connect-view{margin:34px auto}.connect-card{padding:25px}.connect-actions{gap:9px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}
.remember-option{display:flex;align-items:center;gap:9px;font-size:12px;color:var(--muted);margin:14px 0 0}.remember-option input{width:16px;height:16px;accent-color:var(--green);margin:0;padding:0}.recovery-button{display:block;margin:17px auto 0}.password-panel{background:var(--paper);border:1px solid var(--line);border-radius:16px;padding:24px;margin-bottom:28px}.password-heading{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:16px}.password-heading h2{font-size:20px}.password-heading p{color:var(--muted);font-size:12px;line-height:1.8;margin:0}.password-panel label{margin-top:14px}.password-panel .field-hint{margin-bottom:16px}.success-message{color:var(--green);background:#edf4e8;border:1px solid #dbe7d1;font-size:12px;line-height:1.7;border-radius:9px;padding:10px 12px;margin:12px 0}@media(max-width:640px){.header-actions{gap:12px}.password-panel{padding:19px}.password-panel input{font-size:16px}.password-heading h2{font-size:18px}}