:root{--ink:#29323b;--ink-soft:#69737d;--muted:#858f98;--paper:#f4f6f7;--white:#fff;--line:#e1e5e7;--line-strong:#cfd6d9;--accent:#bfd836;--accent-dark:#829600;--danger:#a83226;--green:#517944;--shadow:0 18px 48px rgba(29,41,48,.08);font-family:'DM Sans','Noto Sans SC',sans-serif;color:var(--ink);font-synthesis:none;text-rendering:optimizeLegibility}
*{box-sizing:border-box}html,body{height:100%;min-width:320px;margin:0}body{background:var(--paper);font-size:14px;line-height:1.6}button,input,textarea{font:inherit}button,a,label{ -webkit-tap-highlight-color:transparent}button{cursor:pointer}a{color:inherit;text-decoration:none}.chat-page{display:grid;grid-template-columns:244px minmax(0,1fr);height:100dvh;overflow:hidden}.rail{display:flex;flex-direction:column;padding:26px 18px 20px;background:#e9edef;border-right:1px solid #dce2e4}.brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700}.brand-mark{display:grid;place-items:center;width:34px;height:34px;color:#fff;background:#46535a;border-radius:10px;font-weight:700}.new-chat{display:flex;align-items:center;gap:10px;margin-top:38px;padding:11px 13px;text-align:left;color:var(--ink);background:transparent;border:1px solid var(--line-strong);border-radius:7px}.new-chat:hover,.prompt-card:hover{background:#fff}.new-chat span{font-size:20px;line-height:1;color:var(--accent-dark)}.rail-note{display:flex;align-items:center;gap:9px;margin-top:24px;padding:0 4px;color:var(--ink-soft);font-size:12px}.status-dot{width:8px;height:8px;border-radius:100%;background:#6d9b55;box-shadow:0 0 0 3px rgba(109,155,85,.12)}.rail-footer{margin-top:auto;padding:14px 4px 0;border-top:1px solid var(--line-strong);color:var(--muted);font-size:11px;line-height:1.8}.chat-main{display:flex;flex-direction:column;min-width:0;min-height:0}.topbar{display:flex;align-items:center;justify-content:space-between;height:76px;padding:0 clamp(20px,5vw,74px);border-bottom:1px solid var(--line);background:rgba(255,255,255,.7)}.eyebrow{display:block;color:var(--muted);font-size:10px;font-weight:700;letter-spacing:.12em}.topbar h1{margin:0;font-size:17px;line-height:1.35}.topbar-note{color:var(--ink-soft);font-size:12px}.conversation{position:relative;flex:1;overflow:auto;padding:36px 24px 24px}.welcome{max-width:760px;margin:5vh auto 38px;animation:rise .45s ease-out both}.welcome-mark{display:grid;place-items:center;width:42px;height:42px;margin-bottom:24px;color:#fff;background:#46535a;border-radius:12px;font-size:20px;font-weight:600}.welcome .eyebrow{margin-bottom:10px;color:var(--accent-dark)}.welcome h2{font-size:clamp(28px,4vw,39px);font-weight:600;line-height:1.32;letter-spacing:0}.welcome-copy{max-width:500px;margin-top:14px;color:var(--ink-soft);font-size:14px}.prompt-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:29px}.prompt-card{display:flex;flex-direction:column;gap:5px;min-height:76px;padding:13px 15px;text-align:left;background:rgba(255,255,255,.65);border:1px solid var(--line);border-radius:7px;color:var(--ink);transition:background .15s,border-color .15s}.prompt-card span{color:var(--muted);font-size:11px}.messages{display:flex;flex-direction:column;gap:22px;max-width:760px;margin:0 auto}.message{display:grid;grid-template-columns:30px minmax(0,1fr);gap:12px;animation:rise .2s ease-out both}.message-avatar{display:grid;place-items:center;width:28px;height:28px;border-radius:8px;font-size:12px;font-weight:700}.message.user .message-avatar{background:#e5e9eb;color:#59646c}.message.assistant .message-avatar{background:#46535a;color:#fff}.message-body{min-width:0;padding-top:2px;white-space:pre-wrap;overflow-wrap:anywhere}.message.user .message-body{color:#46515a}.message.assistant .message-body{color:#26313a}.message-body p{margin:0 0 10px}.message-body p:last-child{margin-bottom:0}.message-sources{display:flex;flex-wrap:wrap;gap:7px;margin-top:14px}.source-chip{display:inline-flex;align-items:center;gap:6px;padding:5px 9px;border:1px solid var(--line);border-radius:5px;color:var(--ink-soft);background:#fff;font-size:11px}.source-chip a{text-decoration:underline;text-underline-offset:2px}.source-kind{color:var(--accent-dark);font-weight:600}.pending{color:var(--muted)}.composer{flex:none;width:min(100% - 40px,810px);margin:0 auto 18px;padding:12px 15px 9px;background:#fff;border:1px solid var(--line-strong);border-radius:10px;box-shadow:var(--shadow)}.composer textarea{display:block;width:100%;min-height:44px;max-height:180px;resize:none;padding:5px 2px 9px;color:var(--ink);background:transparent;border:0;outline:0}.composer textarea::placeholder{color:#9aa3a9}.composer-bottom{display:flex;align-items:center;justify-content:space-between}.composer-tools{display:flex;align-items:center;gap:9px}.icon-button{display:inline-grid;place-items:center;width:32px;height:32px;color:var(--ink-soft);background:transparent;border:1px solid var(--line);border-radius:6px;font-size:20px}.attach-button{position:relative;overflow:hidden}.attach-button input{position:absolute;inset:0;width:100%;height:100%;opacity:0;cursor:pointer}.compose-hint{color:var(--muted);font-size:11px}.send-button{display:flex;align-items:center;gap:12px;padding:7px 11px 7px 13px;color:#fff;background:#46535a;border:0;border-radius:6px;font-size:12px}.send-button:hover{background:#293840}.send-button span:last-child{display:grid;place-items:center;width:19px;height:19px;border-radius:4px;color:#303b40;background:var(--accent);font-size:15px}.send-button:disabled{opacity:.55}.composer-disclaimer{margin:7px 2px 0;color:#9aa3a9;font-size:10px;text-align:center}.file-list{display:flex;flex-wrap:wrap;gap:6px}.file-token{display:flex;align-items:center;gap:7px;margin:0 0 8px;padding:4px 8px;background:#f1f3f4;border-radius:5px;color:var(--ink-soft);font-size:11px}.file-token button{padding:0;color:var(--muted);background:none;border:0;font-size:14px}.error-note{padding:9px 11px;color:var(--danger);background:#fff1ef;border:1px solid #f0d0cb;border-radius:6px;font-size:12px}
.admin-page{min-height:100%;background:var(--paper)}.admin-header{display:flex;align-items:center;gap:48px;padding:20px clamp(18px,5vw,72px);background:#fff;border-bottom:1px solid var(--line)}.admin-header>div{padding-left:38px;border-left:1px solid var(--line)}.admin-header h1{font-size:17px}.admin-main{width:min(100% - 36px,980px);margin:32px auto 80px}.admin-toolbar{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:16px 18px;background:#fff;border:1px solid var(--line);border-radius:7px}.password-form,.upload-row,.search-form{display:flex;align-items:center;gap:9px}.password-form label{font-size:12px;color:var(--ink-soft)}input[type=password],input[type=text],input[type=search]{min-width:0;height:36px;padding:0 10px;color:var(--ink);background:#fff;border:1px solid var(--line-strong);border-radius:5px;outline:none}input:focus{border-color:#89979d;box-shadow:0 0 0 3px rgba(137,151,157,.12)}.password-form input{width:190px}.admin-status,.helper-text{color:var(--muted);font-size:12px}.admin-section{margin-top:28px;padding:21px 22px;background:#fff;border:1px solid var(--line);border-radius:7px}.section-heading{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:19px}.section-heading h2{font-size:17px}.section-heading .eyebrow{margin-bottom:3px}.primary-button{height:36px;padding:0 13px;color:#fff;background:#46535a;border:0;border-radius:5px;font-size:12px}.primary-button:hover{background:#293840}.upload-row input[type=text]{flex:1}.file-picker{position:relative;display:grid;place-items:center;height:36px;padding:0 13px;border:1px solid var(--line-strong);border-radius:5px;color:var(--ink-soft);font-size:12px;cursor:pointer}.file-picker input{position:absolute;inset:0;width:100%;height:100%;opacity:0;cursor:pointer}.helper-text{margin-top:9px}.document-list{display:grid}.document-row{display:grid;grid-template-columns:minmax(0,1fr) auto auto;align-items:center;gap:18px;padding:13px 2px;border-top:1px solid #edf0f1}.document-title{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-weight:600}.document-meta{color:var(--muted);font-size:11px}.delete-button{padding:6px 9px;color:var(--danger);background:#fff;border:1px solid #edd4d0;border-radius:5px;font-size:11px}.empty-state{padding:20px 0;color:var(--muted);font-size:12px}.wide-search input{flex:1}.knowledge-results{display:grid;gap:9px;margin-top:14px}.knowledge-item{padding:12px;background:#f7f8f8;border-left:3px solid var(--accent);font-size:12px}.knowledge-item strong{display:block;margin-bottom:5px}.knowledge-item p{white-space:pre-wrap;color:var(--ink-soft)}.hidden{display:none!important}
@keyframes rise{from{opacity:0;transform:translateY(7px)}to{opacity:1;transform:translateY(0)}}
@media(max-width:700px){.chat-page{grid-template-columns:1fr}.rail{display:none}.topbar{height:62px;padding:0 18px}.topbar-note{font-size:10px}.conversation{padding:25px 17px}.welcome{margin:5vh auto 30px}.welcome h2{font-size:30px}.prompt-grid{grid-template-columns:1fr 1fr;gap:7px}.prompt-card{min-height:82px;padding:10px;font-size:12px}.composer{width:calc(100% - 20px);margin-bottom:10px;padding:9px 11px 7px}.compose-hint{font-size:10px}.admin-header{gap:18px;padding:15px 18px}.admin-header>div{padding-left:18px}.admin-main{width:calc(100% - 24px);margin-top:16px}.admin-toolbar{align-items:flex-start;flex-direction:column}.password-form{width:100%;flex-wrap:wrap}.password-form input{flex:1}.admin-section{padding:16px 13px;margin-top:14px}.upload-row{align-items:stretch;flex-wrap:wrap}.upload-row input[type=text]{flex-basis:100%}.upload-row .file-picker{flex:1}.section-heading{align-items:flex-start;flex-direction:column}.section-heading .search-form{width:100%}.document-row{grid-template-columns:minmax(0,1fr) auto;gap:8px}.document-meta{grid-column:1}.document-row .delete-button{grid-column:2;grid-row:1/3}.welcome-copy{font-size:13px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms!important;scroll-behavior:auto!important;transition-duration:.01ms!important}}
.message-body a{color:#526d00;text-decoration:underline;text-underline-offset:2px;overflow-wrap:anywhere}
.message-body .inline-source{font-size:12px;color:#376986;margin-inline:3px;overflow-wrap:anywhere}
.message-body a.inline-source:hover,.message-body a.inline-source:focus-visible{color:#23465b;text-decoration-thickness:2px}
.brand-logo{display:block;width:148px;height:auto;max-height:54px;object-fit:contain;object-position:left center}.topbar-actions{display:flex;align-items:center;gap:18px}.contact-button{min-height:36px;padding:0 14px;color:#fff;background:#46535a;border:0;border-radius:6px;font-weight:600}.contact-button:hover{background:#293840}.contact-dialog{width:min(100% - 32px,460px);max-width:460px;padding:24px;background:#fff;border:1px solid var(--line-strong);border-radius:10px;color:var(--ink);box-shadow:0 24px 80px rgba(20,32,38,.2)}.contact-dialog::backdrop{background:rgba(28,38,43,.42);backdrop-filter:blur(2px)}.dialog-topline{display:flex;align-items:center;justify-content:space-between}.dialog-topline .eyebrow{color:var(--accent-dark)}.dialog-close{display:grid;place-items:center;width:32px;height:32px;color:var(--ink-soft);background:transparent;border:1px solid var(--line);border-radius:6px;font-size:22px;line-height:1}.contact-dialog h2{margin-top:10px;font-size:23px;line-height:1.35}.contact-intro{margin-top:7px;color:var(--ink-soft)}.lawyer-profile{margin-top:22px;padding:18px;background:#f5f7f7;border:1px solid var(--line);border-radius:7px}.lawyer-heading{display:flex;align-items:center;gap:12px}.lawyer-avatar{display:grid;place-items:center;width:44px;height:44px;flex:none;border-radius:8px;background:#46535a;color:#fff;font-size:17px}.lawyer-heading h3{font-size:16px}.lawyer-heading p{margin-top:2px;color:var(--ink-soft);font-size:12px}.lawyer-specialties{margin:16px 0 13px;padding-bottom:13px;border-bottom:1px solid var(--line);font-size:13px}.contact-details{display:grid;gap:11px}.contact-details>a,.contact-details>div{display:grid;grid-template-columns:74px minmax(0,1fr);align-items:start;gap:10px;overflow-wrap:anywhere}.contact-details a{text-decoration:underline;text-decoration-color:#9ba5a8;text-underline-offset:3px}.contact-label{color:var(--muted);font-size:12px}.consultation-note{display:flex;align-items:center;gap:9px;margin-top:17px;color:#4b6644;font-size:12px}.consultation-note .status-dot{flex:none}
@media(max-width:700px){.brand-logo{width:122px;max-height:42px}.topbar-actions{gap:0}.topbar-note{display:none}.contact-button{min-height:34px;padding:0 11px;font-size:12px}.contact-dialog{padding:20px}.contact-dialog h2{font-size:21px}.lawyer-profile{padding:15px}}
.knowledge-folder-picker{margin-bottom:17px;padding:13px;background:#f7f8f8;border:1px solid var(--line);border-radius:6px}.folder-picker-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:9px}.folder-picker-heading span{color:var(--ink-soft);font-size:12px;overflow-wrap:anywhere}.folder-picker-controls{display:flex;flex-wrap:wrap;gap:8px}.folder-picker-controls select{min-width:180px;height:36px;padding:0 9px;background:#fff;border:1px solid var(--line-strong);border-radius:5px;color:var(--ink)}.secondary-button{height:36px;padding:0 11px;color:var(--ink-soft);background:#fff;border:1px solid var(--line-strong);border-radius:5px;font-size:12px}.secondary-button:disabled{opacity:.5;cursor:default}.replace-option{display:flex;align-items:center;gap:6px;color:var(--ink-soft);font-size:12px}.replace-option input{margin:0}.admin-status:empty{display:none}
@media(max-width:700px){.folder-picker-heading{align-items:flex-start;flex-direction:column}.folder-picker-controls select{flex:1;min-width:0}.replace-option{flex-basis:100%;padding-top:6px}}
html,body{min-width:300px}:root{font-family:'Aptos','Microsoft YaHei',sans-serif}
.selected-file-name{min-height:20px;margin-top:7px;color:var(--ink-soft);font-size:12px;overflow-wrap:anywhere}
.admin-toolbar{flex-wrap:wrap;align-items:flex-start}.admin-toolbar>div{flex:1 1 240px;min-width:0;overflow-wrap:anywhere}.password-form{flex:0 1 auto;flex-wrap:wrap;min-width:0}.password-form label{white-space:nowrap}.password-form input{flex:1 1 130px;max-width:190px}.admin-page .primary-button,.admin-page .secondary-button{display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;width:auto;min-height:36px;height:auto;padding:8px 13px;line-height:1.5;white-space:nowrap;max-width:100%}.admin-page button:disabled{opacity:.5;cursor:not-allowed}.upload-row{flex-wrap:wrap}.scan-controls{display:flex;flex-wrap:wrap;gap:9px;margin:14px 0}.scan-items{max-height:320px;overflow:auto;padding-left:22px;font-size:12px;overflow-wrap:anywhere}.scan-items li{margin:7px 0}#scan-progress{width:100%;height:12px;accent-color:var(--accent-dark)}.admin-section details{margin-top:12px}
.rail{min-height:0}.chat-history{display:flex;flex:1;flex-direction:column;min-height:0;margin-top:24px;margin-bottom:18px}.chat-history h2{margin:0 4px 8px;font-size:12px;font-weight:600;color:var(--ink-soft)}.history-status{margin:0 4px 8px;color:var(--muted);font-size:12px;overflow-wrap:anywhere}.history-status:empty{display:none}.history-list{display:flex;flex-direction:column;gap:4px;min-height:0;overflow:auto}.history-item{flex:none;display:grid;gap:3px;width:100%;padding:9px 10px;text-align:left;border:1px solid transparent;border-radius:6px;background:transparent;color:var(--ink)}.history-item span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0}.history-item time{font-size:11px;color:var(--muted)}.history-item:hover{background:#f5f7f8}.history-item[aria-current=true]{background:#fff;border-color:var(--line-strong)}.history-item:disabled,.new-chat:disabled{opacity:.55;cursor:wait}.history-retry{align-self:flex-start;margin:4px;padding:4px 8px;background:transparent;border:1px solid var(--line-strong);border-radius:4px;color:var(--ink-soft)}.topbar-heading{display:flex;align-items:center;gap:12px}.history-toggle,.history-backdrop{display:none}.history-retry[hidden],.history-backdrop[hidden]{display:none}
@media(max-width:700px){.history-toggle{display:grid;place-items:center;width:34px;height:34px;padding:0;border:1px solid var(--line-strong);border-radius:6px;background:transparent;font-size:20px;color:var(--ink)}.history-open .rail{display:flex;position:fixed;inset:0 auto 0 0;width:min(280px,85vw);z-index:30}.history-open .history-backdrop{display:block;position:fixed;inset:0;z-index:20;border:0;background:rgba(28,38,43,.35)}.history-open .history-backdrop[hidden]{display:none}}