:root{
  --rhk:#078e91;
  --rhk-deep:#063f42;
  --rhk-dark:#073c3f;
  --ink:#173638;
  --muted:#74898b;
  --line:#d9e8e8;
  --bg:#f3f8f8;
  --soft:#eaf7f5;
  --white:#fff;
  --shadow:0 18px 48px rgba(25,64,66,.08);
}
*{box-sizing:border-box}
html,body{min-height:100%}
body{
  margin:0;background:
    radial-gradient(circle at 12% 8%,rgba(127,202,198,.13),transparent 27%),
    var(--bg);
  color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
}
button,textarea{font:inherit}
button,a{-webkit-tap-highlight-color:transparent}
.assistant-shell{min-height:100dvh;display:flex;flex-direction:column}
.assistant-topbar{
  min-height:82px;padding:14px clamp(16px,3vw,42px);display:flex;align-items:center;justify-content:space-between;gap:18px;
  border-bottom:1px solid rgba(206,225,225,.86);background:rgba(255,255,255,.88);backdrop-filter:blur(18px);position:relative;z-index:10;
}
.assistant-brand{display:flex;align-items:center;gap:13px;min-width:0}
.brand-mark{
  width:54px;height:54px;border-radius:16px;display:grid;place-items:center;flex:0 0 auto;text-decoration:none;
  background:transparent url("assistant-avatar-xiaoren-v11333.png") center/contain no-repeat;color:transparent;font-size:0;font-weight:950;letter-spacing:.02em;
  box-shadow:none;animation:rhk-assistant-brand-hello 4.8s ease-in-out infinite;transform-origin:50% 82%
}
.assistant-brand strong{display:block;font-size:19px;letter-spacing:-.3px}
.assistant-brand span{display:block;margin-top:4px;color:#819496;font-size:9px;letter-spacing:.18em}
.assistant-top-actions{display:flex;align-items:center;justify-content:flex-end;gap:13px;min-width:0}
.assistant-top-actions a{color:#557274;text-decoration:none;font-size:12px;font-weight:750;white-space:nowrap}
.assistant-top-actions a:hover{color:var(--rhk)}
.model-badge{
  max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;padding:7px 10px;border-radius:999px;
  background:var(--soft);color:#08777a;border:1px solid #d2e8e6;font-size:11px;font-weight:800;
}
.assistant-layout{
  width:min(1460px,100%);margin:0 auto;flex:1;min-height:0;padding:20px clamp(12px,2vw,24px) 26px;
  display:grid;grid-template-columns:292px minmax(0,1fr);gap:18px;
}
.assistant-sidebar,.chat-panel{border:1px solid var(--line);background:rgba(255,255,255,.92);border-radius:24px;box-shadow:var(--shadow)}
.assistant-sidebar{padding:17px;display:flex;flex-direction:column;min-width:0;overflow:auto}
.new-chat{
  width:100%;border:0;border-radius:14px;padding:13px 15px;background:var(--rhk-deep);color:#fff;text-align:left;font-weight:850;cursor:pointer;
  box-shadow:0 8px 18px rgba(5,64,66,.13)
}
.new-chat span{font-size:19px;margin-right:7px;vertical-align:-1px}
.new-chat:hover{background:#075256}
.sidebar-section{margin-top:21px}
.sidebar-section h2{font-size:11px;color:#8a9a9c;letter-spacing:.12em;margin:0 7px 9px;text-transform:uppercase}
.sidebar-section>button{
  display:block;width:100%;border:0;background:transparent;color:#385759;text-align:left;padding:10px 11px;border-radius:11px;font-size:12px;line-height:1.45;cursor:pointer;
}
.sidebar-section>button:hover{background:var(--soft);color:#08777a}
.tool-links{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.tool-links h2{grid-column:1/-1}
.tool-links a{
  min-width:0;display:flex;align-items:center;gap:7px;border:1px solid #e1ecec;border-radius:12px;padding:9px;text-decoration:none;color:#496668;background:#fff;
}
.tool-links a:hover{border-color:#9bcacc;color:#08777a}
.tool-links b{width:28px;height:28px;display:grid;place-items:center;flex:0 0 auto;border-radius:8px;background:var(--soft);color:var(--rhk);font-size:9px}
.tool-links span{min-width:0;font-size:10px;line-height:1.3}
.privacy-note{margin:auto 4px 0;padding-top:21px;color:#91a0a1;font-size:9px;line-height:1.65}
.chat-panel{min-width:0;min-height:650px;display:flex;flex-direction:column;overflow:hidden;position:relative}
.assistant-status,.assistant-alert{margin:16px 18px 0;border-radius:13px;padding:11px 13px;font-size:11px}
.assistant-status{display:flex;align-items:center;gap:8px;background:#edf9f5;color:#23715d}
.assistant-status i{width:8px;height:8px;border-radius:50%;background:#31ae7b;box-shadow:0 0 0 4px rgba(49,174,123,.13)}
.assistant-alert{display:flex;align-items:center;gap:9px;flex-wrap:wrap;background:#fff4e7;color:#83530e}
.assistant-alert strong{font-size:12px}.assistant-alert span{flex:1;min-width:180px}.assistant-alert a{color:#08777a;font-weight:850;text-decoration:none}
.chat-log{flex:1;min-height:0;overflow:auto;padding:29px clamp(17px,4vw,52px) 22px;scroll-behavior:smooth}
.message{display:flex;align-items:flex-start;gap:12px;margin:0 0 25px;max-width:920px}
.message.user-message{margin-left:auto;flex-direction:row-reverse}
.message-avatar{
  width:36px;height:36px;border-radius:11px;display:grid;place-items:center;flex:0 0 auto;background:linear-gradient(145deg,#078e91,#075154);color:#fff;font-size:10px;font-weight:900;
}
.assistant-message .message-avatar{
  width:38px;height:38px;border-radius:0;background:transparent url("assistant-avatar-xiaoren-v11333.png") center/contain no-repeat;
  color:transparent;font-size:0;box-shadow:none
}
.user-message .message-avatar{background:#e4efef;color:#587174}
.message-body{min-width:0;max-width:min(780px,calc(100vw - 430px))}
.message-name{color:#819395;font-size:10px;font-weight:750;margin:0 0 6px 3px}
.user-message .message-name{text-align:right;margin:0 3px 6px 0}
.message-attachment{
  max-width:100%;margin:0 3px 7px auto;padding:7px 10px;display:flex;align-items:center;justify-content:flex-end;gap:6px;
  border:1px solid #cfe2e2;border-radius:10px;background:#f4f9f9;color:#537173;font-size:10px;
}
.message-attachment b{font-size:11px;line-height:1}.message-attachment span{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.message-content{
  white-space:pre-wrap;overflow-wrap:anywhere;padding:14px 16px;border:1px solid #dceaea;border-radius:5px 17px 17px 17px;
  background:#fff;color:#294a4c;font-size:14px;line-height:1.78;box-shadow:0 6px 18px rgba(25,64,66,.04);
}
.user-message .message-content{background:var(--rhk-deep);color:#fff;border-color:var(--rhk-deep);border-radius:17px 5px 17px 17px}
.message.error-message .message-content{background:#fff1ef;color:#984a3d;border-color:#f1d4cf}
.message.pending .message-content{display:flex;gap:5px;align-items:center;min-width:76px;min-height:49px}
.typing-dot{width:7px;height:7px;border-radius:50%;background:#78a4a3;animation:typing 1.1s infinite ease-in-out}
.typing-dot:nth-child(2){animation-delay:.15s}.typing-dot:nth-child(3){animation-delay:.3s}
@keyframes typing{0%,70%,100%{transform:translateY(0);opacity:.45}35%{transform:translateY(-4px);opacity:1}}
@keyframes rhk-assistant-brand-hello{
  0%,18%,100%{transform:translateY(0) rotate(0deg)}
  4%{transform:translateY(-2px) rotate(-3deg)}
  9%{transform:translateY(-1px) rotate(3deg)}
  14%{transform:translateY(0) rotate(-1deg)}
}
.message-actions{display:flex;gap:9px;margin-top:6px;margin-left:3px}
.message-actions button{border:0;background:transparent;color:#8a9b9c;font-size:10px;padding:4px 0;cursor:pointer}.message-actions button:hover{color:var(--rhk)}
.message-sources{margin:8px 0 0 3px;padding:10px 12px;border:1px solid #d8e8e7;border-radius:12px;background:#f7fbfb}
.message-sources-title{margin-bottom:6px;color:#4b7072;font-size:11px;font-weight:850}
.message-sources ol{margin:0;padding:0;list-style:none;display:grid;gap:6px}
.message-sources li{min-width:0;display:flex;align-items:baseline;gap:7px;color:#8a9b9c;font-size:11px}
.message-source-link{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:#08777a;font-size:12px;font-weight:750;text-decoration:none}
.message-source-link:hover{text-decoration:underline}.message-sources li>span{flex:0 0 auto;max-width:120px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.tool-suggestions{padding:0 clamp(17px,4vw,52px) 10px;display:flex;gap:8px;flex-wrap:wrap}
.tool-suggestions[hidden]{display:none}
.tool-suggestions a{display:inline-flex;align-items:center;gap:7px;padding:8px 11px;border:1px solid #cfe2e2;border-radius:999px;background:#fff;text-decoration:none;color:#277174;font-size:11px;font-weight:800}
.tool-suggestions a b{font-size:9px}.tool-suggestions a:hover{border-color:#7cb9bb;background:var(--soft)}
.assistant-composer{
  margin:0 clamp(14px,3vw,38px) 19px;padding:8px 8px 8px 15px;border:1px solid #cbdede;border-radius:18px;background:#fff;
  display:grid;grid-template-columns:minmax(0,1fr) auto;gap:9px;align-items:end;box-shadow:0 10px 28px rgba(25,64,66,.07);
}
.assistant-composer:focus-within{border-color:#75babc;box-shadow:0 0 0 4px rgba(7,142,145,.08),0 10px 28px rgba(25,64,66,.07)}
.composer-upload-row{
  grid-column:1/-1;min-width:0;display:flex;align-items:center;gap:9px;padding:1px 1px 7px;border-bottom:1px solid #edf3f3;
}
.composer-upload-row>span{min-width:0;color:#8a9a9c;font-size:9px;line-height:1.45;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.assistant-composer .attachment-trigger{
  flex:0 0 auto;min-width:0;height:31px;padding:0 10px;border:1px solid #b9d4d4;border-radius:9px;background:#f4fafa;color:#17777a;
  font-size:10px;font-weight:850;cursor:pointer;
}
.assistant-composer .attachment-trigger:hover{border-color:#78b6b8;background:var(--soft)}
.assistant-composer .attachment-trigger:disabled{border-color:#d8e4e4;background:#f3f6f6;color:#a4b3b4;cursor:not-allowed}
.assistant-composer .web-search-toggle{
  flex:0 0 auto;height:31px;padding:0 10px;border:1px solid #9bcaca;border-radius:9px;background:#eaf7f5;color:#08777a;
  font-size:10px;font-weight:850;white-space:nowrap;cursor:pointer;
}
.assistant-composer .web-search-toggle[aria-pressed="false"]{background:#f5f7f7;border-color:#d4e1e1;color:#74898b}
.assistant-composer .web-search-toggle:disabled{background:#f3f6f6;border-color:#d8e4e4;color:#a4b3b4;cursor:not-allowed}
.attachment-card{
  grid-column:1/-1;min-width:0;display:grid;grid-template-columns:34px minmax(0,1fr) auto;align-items:center;gap:9px;
  padding:9px 10px;border:1px solid #cfe3e3;border-radius:12px;background:#f6fbfb;
}
.attachment-card[hidden],.attachment-prompts[hidden]{display:none!important}
.attachment-icon{width:34px;height:34px;border-radius:9px;display:grid;place-items:center;background:#dff2f0;color:#087b7e;font-size:11px;font-weight:950}
.attachment-info{min-width:0;display:grid;gap:2px}
.attachment-info strong{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:#294d4f;font-size:11px}
.attachment-info span{color:#819596;font-size:9px;line-height:1.35}
.attachment-info span:last-child{color:#347b6b}
.attachment-card[data-state="uploading"] .attachment-icon{animation:attachmentPulse 1.15s infinite ease-in-out}
.attachment-card[data-state="error"]{border-color:#edcbc6;background:#fff5f3}
.attachment-card[data-state="error"] .attachment-icon{background:#f9deda;color:#a74c3e}
.attachment-card[data-state="error"] .attachment-info span:last-child{color:#a74c3e}
@keyframes attachmentPulse{0%,100%{opacity:.55}50%{opacity:1}}
.assistant-composer .attachment-remove{
  min-width:0;height:29px;padding:0 9px;border:1px solid #d3e2e2;border-radius:8px;background:#fff;color:#6d8587;font-size:9px;font-weight:800;cursor:pointer;
}
.assistant-composer .attachment-remove:hover{border-color:#e0aaa2;color:#a34d40}
.assistant-composer .attachment-remove:disabled{opacity:.55;cursor:not-allowed}
.attachment-prompts{grid-column:1/-1;min-width:0;display:flex;align-items:center;gap:6px;overflow-x:auto;padding:0 1px 1px;scrollbar-width:none}
.attachment-prompts::-webkit-scrollbar{display:none}
.attachment-prompts>span{flex:0 0 auto;color:#87999a;font-size:9px;font-weight:750}
.assistant-composer .attachment-prompts button{
  flex:0 0 auto;min-width:0;height:28px;padding:0 9px;border:1px solid #d1e3e3;border-radius:999px;background:#fff;color:#397678;
  font-size:9px;font-weight:800;cursor:pointer;
}
.assistant-composer .attachment-prompts button:hover{border-color:#82babb;background:var(--soft)}
.assistant-composer .attachment-prompts button:disabled{background:#f4f6f6;color:#a4b1b2;cursor:not-allowed}
.assistant-composer textarea{width:100%;min-height:42px;max-height:150px;resize:none;border:0;outline:0;padding:10px 2px;background:transparent;color:var(--ink);font-size:14px;line-height:1.55}
.assistant-composer textarea::placeholder{color:#9aa8a9}.assistant-composer textarea:disabled{cursor:not-allowed}
.assistant-composer #sendBtn{min-width:72px;height:42px;border:0;border-radius:12px;background:var(--rhk);color:#fff;font-size:12px;font-weight:900;cursor:pointer}
.assistant-composer #sendBtn:hover{background:#077b7e}.assistant-composer #sendBtn:disabled{background:#b7cece;cursor:not-allowed}
.assistant-composer p{grid-column:1/-1;margin:0 3px 2px;color:#95a2a3;font-size:9px;line-height:1.45}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.assistant-embedded{overflow:hidden;background:var(--bg)}
.assistant-embedded .assistant-topbar{display:none}
.assistant-embedded .assistant-layout{width:100%;height:var(--assistant-viewport-height,100dvh);padding:12px;grid-template-columns:260px minmax(0,1fr);gap:12px}
.assistant-embedded .assistant-sidebar,.assistant-embedded .chat-panel{border-radius:18px;box-shadow:none}
.assistant-embedded .chat-panel{min-height:0}
@media(max-width:900px){
  .assistant-layout{grid-template-columns:240px minmax(0,1fr)}
  .model-badge{display:none}
  .message-body{max-width:calc(100vw - 330px)}
}
@media(max-width:760px),(max-height:600px) and (max-width:1000px){
  body{overflow:hidden}
  .assistant-topbar{min-height:70px;padding:10px 13px}.brand-mark{width:44px;height:44px;border-radius:0;font-size:0}.assistant-brand strong{font-size:16px}.assistant-brand span{font-size:7px}.assistant-top-actions a:first-of-type{display:none}
  .assistant-layout{height:calc(var(--assistant-viewport-height,100dvh) - 70px);padding:8px;display:flex;flex-direction:column;gap:8px}
  .assistant-sidebar{border-radius:16px;box-shadow:none;padding:9px;display:block;overflow:visible;flex:0 0 auto}
  .new-chat{width:auto;display:inline-flex;padding:9px 11px;font-size:11px}.new-chat span{font-size:15px}
  .sidebar-section{margin:0 0 0 7px;display:inline-flex;max-width:calc(100% - 105px);vertical-align:middle;overflow-x:auto;gap:6px;scrollbar-width:none}.sidebar-section::-webkit-scrollbar{display:none}.sidebar-section h2,.tool-links,.privacy-note{display:none}.sidebar-section>button{width:auto;white-space:nowrap;background:var(--soft);padding:8px 10px;font-size:10px}
  .chat-panel{min-height:0;flex:1;border-radius:18px;box-shadow:none}
  .assistant-status,.assistant-alert{margin:9px 10px 0;padding:9px 10px}
  .chat-log{padding:18px 12px 9px}
  .message{gap:8px;margin-bottom:18px}.message-avatar{width:31px;height:31px;border-radius:9px;font-size:9px}.assistant-message .message-avatar{width:32px;height:32px;border-radius:0;font-size:0}.message-body{max-width:calc(100vw - 79px)}.message-content{font-size:13px;padding:12px 13px;line-height:1.7}.welcome-message .message-content{font-size:12px}
  .tool-suggestions{padding:0 11px 7px;overflow-x:auto;flex-wrap:nowrap}.tool-suggestions a{white-space:nowrap}
  .assistant-composer{margin:0 8px calc(8px + env(safe-area-inset-bottom));padding:6px 6px 6px 10px;border-radius:16px;position:sticky;bottom:0}.assistant-composer textarea{font-size:16px;min-height:39px;padding:8px 1px}.assistant-composer #sendBtn{height:39px;min-width:62px}.assistant-composer p{font-size:8px}
  .composer-upload-row{gap:6px;padding-bottom:5px}.composer-upload-row>span{font-size:8px}.assistant-composer .attachment-trigger,.assistant-composer .web-search-toggle{height:29px;padding:0 8px}
  .message-sources{padding:9px 10px}.message-sources li>span{display:none}
  .attachment-card{grid-template-columns:31px minmax(0,1fr) auto;padding:7px 8px}.attachment-icon{width:31px;height:31px}.attachment-prompts{margin-right:-1px}
  .assistant-embedded .assistant-layout{height:var(--assistant-viewport-height,100dvh);padding:7px calc(7px + env(safe-area-inset-right)) 7px calc(7px + env(safe-area-inset-left));gap:7px}
}
@media(prefers-reduced-motion:reduce){
  .brand-mark{animation:none}
}