:root{--my-ink:#0b1630;--my-blue:#2364f5;--my-blue-strong:#1548c4;--my-blue-soft:#eaf1ff;--my-page:#f5f8fc;--my-surface:#fff;--my-line:#dce5f1;--my-text:#14213b;--my-muted:#61708a;--my-success:#16835f;--font:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--my-page);font-family:var(--font);color:var(--my-text)}.moyuan-chat{height:100vh;height:100dvh;display:flex;overflow:hidden}.sidebar{width:278px;flex:0 0 278px;display:flex;flex-direction:column;background:linear-gradient(180deg,#fff,#f7faff);border-right:1px solid var(--my-line);box-shadow:8px 0 24px rgba(16,38,78,.045)}.sidebar-head{padding:20px 16px 17px;border-bottom:1px solid var(--my-line)}.brand{display:flex;align-items:center;gap:10px}.brand-mark{display:grid;place-items:center;width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,#122950,#245dd7);color:#fff;font-weight:800}.brand b,.brand small{display:block}.brand b{font-size:16px;letter-spacing:.05em}.brand small{margin-top:4px;color:#8490a4;font-size:10px;letter-spacing:.08em}.new-btn{width:100%;min-height:44px;margin-top:18px;border:0;border-radius:11px;background:linear-gradient(135deg,#286bfb,#1f54d1);color:#fff;font:700 14px var(--font);cursor:pointer;box-shadow:0 10px 20px rgba(35,100,245,.2)}.history-label{padding:18px 20px 8px;color:#8794aa;font-size:11px;font-weight:750;letter-spacing:.12em}.project-list{padding:8px 10px;overflow:auto}.project-card{width:100%;padding:12px;border:1px solid #bfd2f8;border-radius:11px;background:#eaf1ff;color:var(--my-blue);font:700 13px var(--font);text-align:left;cursor:pointer}.project-card small{display:block;margin-top:5px;color:var(--my-muted);font-weight:400}.muted{padding:16px;color:#8997ac;font-size:13px}.sidebar-foot{margin-top:auto;padding:16px 12px;border-top:1px solid var(--my-line);color:#728199;font-size:12px;text-align:center}.main{display:flex;flex:1;min-width:0;min-height:0;flex-direction:column;height:100vh;height:100dvh;overflow:hidden}.header{min-height:75px;display:flex;align-items:center;justify-content:space-between;padding:15px 28px;border-bottom:1px solid var(--my-line);background:rgba(255,255,255,.92);box-shadow:0 2px 9px rgba(17,35,68,.03)}.header h1{margin:0;font-size:17px;letter-spacing:.03em}.stage-badge{display:inline-block;margin-top:5px;padding:4px 8px;border-radius:7px;background:var(--my-blue-soft);color:var(--my-blue);font-size:12px;font-weight:700}.header-actions{display:flex;align-items:center;gap:8px}.header-btn,.revision{min-height:36px;padding:7px 11px;border:1px solid var(--my-line);border-radius:9px;background:#fff;color:#314260;font:700 12px var(--font)}.revision{background:#f7faff;font-family:ui-monospace,Consolas,monospace}.header-btn:disabled{opacity:.45}.conversation-panel{min-height:0;flex:1;overflow-y:auto;overscroll-behavior:contain;scrollbar-gutter:stable}.messages{width:min(1050px,100%);margin:0 auto;padding:34px;display:flex;flex-direction:column;gap:20px}.message{display:flex;gap:10px;max-width:min(86%,790px)}.message.user{align-self:flex-end;flex-direction:row-reverse}.avatar{width:34px;height:34px;flex:0 0 34px;display:grid;place-items:center;border:1px solid var(--my-line);border-radius:50%;background:linear-gradient(135deg,#122950,#245dd7);color:#fff;font-size:10px;font-weight:700;text-align:center}.message.user .avatar{background:#e9f1ff;color:var(--my-blue)}.bubble{padding:15px 18px;border:1px solid var(--my-line);border-radius:16px;border-bottom-left-radius:5px;background:#fff;box-shadow:0 6px 15px rgba(19,42,85,.045);font-size:15px;line-height:1.85}.message.user .bubble{border:0;border-bottom-right-radius:5px;background:linear-gradient(135deg,#2b6dff,#2356d2);color:#fff}.bubble h1,.bubble h2,.bubble h3{margin:0 0 10px;color:var(--my-ink);font-size:18px;line-height:1.5}.message.user .bubble h1,.message.user .bubble h2{color:#fff}.bubble p{margin:0 0 9px}.bubble blockquote{margin:0 0 12px;padding:8px 12px;border-left:3px solid var(--my-blue);background:#f5f8fc;color:var(--my-muted);font-size:13px}.actions{width:min(982px,calc(100% - 68px));margin:0 auto 18px;display:flex;flex-wrap:wrap;gap:8px}.action{min-height:38px;padding:8px 12px;border:1px solid var(--my-line);border-radius:10px;background:#fff;color:#40506e;font:700 13px var(--font);cursor:pointer}.action.primary{border-color:transparent;background:var(--my-blue);color:#fff}.action:disabled{cursor:not-allowed;opacity:.5}.composer{width:min(1050px,calc(100% - 48px));flex:0 0 auto;display:flex;align-items:flex-end;gap:8px;margin:0 auto 13px;padding:10px 11px 10px 16px;border:1px solid #cbd9ee;border-radius:18px;background:#fff;box-shadow:0 14px 32px rgba(23,51,104,.08);position:relative;z-index:2}textarea{min-height:44px;flex:1;resize:none;border:0;outline:0;background:transparent;color:var(--my-ink);font:15px/1.6 var(--font)}#send{min-width:62px;min-height:40px;border:0;border-radius:10px;background:var(--my-blue);color:#fff;font:700 13px var(--font);cursor:pointer}.notice{flex:0 0 auto;margin:0 18px 8px;color:#8b98ac;font-size:11px;text-align:center}@media(max-width:760px){.sidebar{display:none}.header{min-height:68px;padding:12px 16px}.messages{padding:22px 15px}.message{max-width:94%}.composer{width:calc(100% - 24px);margin-bottom:8px}.actions{width:calc(100% - 24px)}.header-btn{display:none}}