.bx-support{--sc-purple:#7837cd;--sc-ink:#302043;--sc-muted:#746281;--sc-gradient:linear-gradient(115deg,#8d41da 0%,#7535c9 55%,#5a4dcc 85%,#4369d6 100%);font-family:"PingFang SC","Microsoft YaHei",sans-serif;color:var(--sc-ink);font-size:14px}
.bx-support *{box-sizing:border-box}
.bx-support [hidden]{display:none!important}
.bx-support button,.bx-support textarea{font:inherit}
.bx-support button{cursor:pointer;-webkit-tap-highlight-color:transparent}
.bx-support button:focus-visible,.bx-support textarea:focus-visible{outline:3px solid #b38ae7;outline-offset:3px}
.bx-support svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.65;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}
.sc-launcher{position:fixed;right:24px;bottom:max(24px,env(safe-area-inset-bottom));z-index:90;display:flex;align-items:center;gap:9px;height:50px;padding:0 20px;border:1px solid #c894ed85;border-radius:25px;background:var(--sc-gradient);color:white;box-shadow:0 8px 28px #7236c54a,0 1px 0 #ffffff25 inset;backdrop-filter:blur(14px);transition:box-shadow .2s,filter .2s}
.sc-launcher:hover{filter:brightness(1.1);box-shadow:0 8px 32px #843adc66}
.sc-launcher-text{font-size:14px;font-weight:600;letter-spacing:.03em}
.sc-dot{width:7px;height:7px;display:inline-block;flex-shrink:0;border-radius:50%;background:#71edb3;box-shadow:0 0 0 3px #68ddae18}
.sc-badge{position:absolute;right:-3px;top:-6px;min-width:21px;height:21px;padding:0 5px;border:2px solid #fff;border-radius:20px;background:#db3f78;font-size:11px;line-height:17px;color:white}
.sc-panel{position:fixed;inset:auto 24px 88px auto;margin:0;padding:0;border:1px solid #dbc9ed;border-radius:20px;width:380px;height:min(672px,calc(100dvh - 112px));max-width:calc(100vw - 32px);max-height:none;overflow:hidden;color:var(--sc-ink);background:#f8f5fc;box-shadow:0 20px 80px #24103845,0 4px 20px #6c2fa821}
.sc-panel[open]{display:flex;flex-direction:column;animation:sc-enter .22s ease-out}
.sc-panel::backdrop{background:#10072312}
.sc-header{display:flex;align-items:center;gap:12px;padding:18px 18px 16px;background:var(--sc-gradient);color:white;flex-shrink:0}
.sc-avatar{display:grid;place-items:center;width:42px;height:42px;border:1px solid #ffffff45;border-radius:13px;background:#ffffff14}
.sc-avatar svg{width:25px;height:25px}
.sc-header-copy{flex:1;min-width:0}
.sc-header h2{font-size:17px;line-height:1.4;letter-spacing:.02em;margin:0 0 5px;color:#fff}
.sc-header p{margin:0;display:flex;align-items:center;gap:7px;font-size:11px;color:#f4eaff}
.sc-icon-button{display:grid;place-items:center;min-width:40px;min-height:40px;border:0;background:transparent;color:inherit;border-radius:9px}
.sc-icon-button:hover{background:#ffffff1f}
.sc-prototype{padding:9px 16px;color:#745884;background:#eee6f7;font-size:11px;line-height:1.6;flex-shrink:0;border-bottom:1px solid #e7dcf0}
.sc-transcript{flex:1;overflow-y:auto;overscroll-behavior:contain;padding:20px 16px;min-height:0;scrollbar-width:thin;scrollbar-color:#cdbbdf transparent}
.sc-welcome{padding:16px;background:#fff;border:1px solid #e8deef;border-radius:3px 14px 14px;margin-bottom:16px}
.sc-welcome h3{font-size:15px;line-height:1.5;margin:0 0 8px;font-weight:600}
.sc-welcome p{font-size:13px;line-height:1.7;margin:0;color:#6b567b}
.sc-hours{display:flex;gap:8px;align-items:center;margin-top:14px;padding-top:12px;border-top:1px solid #eee7f4;font-size:12px;color:#775b8b}
.sc-hours svg{width:15px;height:15px}
.sc-topics{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin:12px 0 4px}
.sc-topics button{padding:10px 8px;border:1px solid #dac6ed;background:#f8f3fc;border-radius:8px;color:#754699;font-size:12px;min-height:40px}
.sc-topics button:hover{background:#eee0fa;border-color:#b18acc}
.sc-message{margin:16px 0;display:flex;flex-direction:column;align-items:flex-start}
.sc-message[data-role="visitor"]{align-items:flex-end}
.sc-message-meta{font-size:10px;color:#7c698d;margin-bottom:6px;line-height:1.5}
.sc-bubble{max-width:90%;padding:11px 13px;border:1px solid #e6d9f0;background:white;border-radius:3px 13px 13px;color:#493454;font-size:13px;line-height:1.7;white-space:pre-wrap;overflow-wrap:anywhere}
.sc-message[data-role="visitor"] .sc-bubble{background:linear-gradient(130deg,#8950cd,#7040bb);border-color:transparent;border-radius:13px 3px 13px 13px;color:white}
.sc-bubble img{display:block;max-width:100%;max-height:190px;border-radius:7px;object-fit:contain;margin:3px 0 7px}
.sc-typing{font-size:12px;color:#745b88;margin:10px 0 0}
.sc-composer{background:#fff;border-top:1px solid #e7dcef;padding:10px 14px 12px;flex-shrink:0}
.sc-composer textarea{resize:none;display:block;width:100%;height:112px;max-height:160px;padding:10px 4px;border:0;outline-offset:0!important;background:transparent;color:#3c2850;font-size:14px;line-height:1.6;border-radius:5px;box-shadow:none;overflow-y:auto}
.sc-composer textarea::placeholder{color:#867292}
.sc-composer-row{display:flex;align-items:center;justify-content:space-between;gap:10px}
.sc-compose-tools{display:flex;align-items:center;gap:2px;color:#8055a5}
.sc-compose-tools .sc-icon-button:hover{background:#f1e8fa}
.sc-text-button{border:0;background:none;color:#796486;font-size:11px!important;padding:8px;min-height:36px}
.sc-send{border:0;border-radius:9px;background:var(--sc-gradient);color:white;padding:10px 17px;display:flex;align-items:center;justify-content:center;gap:6px;font-size:13px!important;min-height:40px}
.sc-send svg{width:15px;height:15px}
.sc-send:disabled{opacity:.45;cursor:default}
.sc-error{font-size:11px;color:#ad315a;line-height:1.5;margin:4px 0}
.sc-attachment{display:flex;align-items:center;gap:8px;background:#f2ebf9;border:1px solid #e4d5ef;border-radius:8px;padding:5px 8px;color:#6f527d;font-size:11px}
.sc-attachment img{width:35px;height:35px;object-fit:cover;border-radius:4px}
.sc-attachment span{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.sc-attachment button{font-size:18px;border:0;background:none;color:#76568a;min-height:32px;min-width:32px}
.sc-sr{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}
.sc-history-note{font-size:10px;color:#877396;text-align:center;margin:14px 0 0}
@keyframes sc-enter{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}
@media(max-width:600px){.sc-launcher{right:16px;bottom:calc(16px + env(safe-area-inset-bottom));height:46px;padding:0 15px;gap:7px}.sc-launcher-text{font-size:13px}.sc-launcher svg{width:20px;height:20px}.sc-panel{inset:auto 8px calc(8px + env(safe-area-inset-bottom)) 8px;width:auto;max-width:none;height:calc(var(--sc-viewport-height,100dvh) - 24px - env(safe-area-inset-top) - env(safe-area-inset-bottom));border-radius:17px;bottom:calc(var(--sc-keyboard-bottom,0px) + 8px + env(safe-area-inset-bottom))}.sc-panel::backdrop{background:#150b2b66}.sc-header{padding:16px}.sc-composer textarea{font-size:16px}.sc-composer{padding-bottom:10px}.sc-transcript{padding:16px}.sc-send{min-height:44px}.sc-icon-button{min-height:44px;min-width:44px}}
@media(max-height:520px){.sc-header{padding:10px 12px;gap:9px}.sc-avatar{width:32px;height:32px;border-radius:10px}.sc-header h2{font-size:15px;margin-bottom:3px}.sc-prototype{padding:6px 12px}.sc-transcript{padding:10px 12px;min-height:48px}.sc-composer{flex:0 1 auto;min-height:0;overflow-y:auto;overscroll-behavior:contain}.sc-composer textarea{height:80px}}
@media(min-width:601px) and (max-height:520px){.sc-panel{inset:12px 24px 12px auto;height:calc(100dvh - 24px)}}
@media(prefers-reduced-motion:reduce){.sc-panel[open]{animation:none}.sc-launcher{transition:none}}

.sc-image-size-hint { margin: 4px 0 8px; color: #775b8b; font-size: 11px; line-height: 1.5; }