#ktlc-root{font-family:Arial,Helvetica,sans-serif}.ktlc-button{position:fixed;right:22px;bottom:22px;z-index:99999;border:0;border-radius:999px;color:#fff;padding:14px 18px;box-shadow:0 8px 24px rgb(0 0 0 / .22);cursor:pointer;font-weight:700;font-size:15px}.ktlc-window{position:fixed;right:22px;bottom:82px;width:350px;max-width:calc(100vw - 32px);height:560px;max-height:calc(100vh - 110px);background:#fff;border-radius:16px;box-shadow:0 18px 48px rgb(0 0 0 / .24);z-index:99999;display:none;overflow:hidden;border:1px solid #e6e8ec}.ktlc-header{color:#fff;padding:16px 18px;font-weight:700;display:flex;justify-content:space-between;align-items:center}.ktlc-close{background:#fff0;border:0;color:#fff;font-size:24px;cursor:pointer}.ktlc-body{height:336px;overflow:auto;padding:14px;background:#f6f8fb}.ktlc-hours{font-size:12px;color:#5d6778;background:#fff;border:1px solid #edf0f5;border-radius:10px;padding:8px 10px;margin-bottom:10px}.ktlc-msg{margin:8px 0;display:flex}.ktlc-msg span{padding:10px 12px;border-radius:14px;max-width:85%;white-space:pre-wrap;line-height:1.35;font-size:14px}.ktlc-msg.customer{justify-content:flex-end}.ktlc-msg.customer span{background:#2872fa;color:#fff;border-bottom-right-radius:4px}.ktlc-msg.agent span,.ktlc-msg.system span{background:#fff;color:#1d2733;border:1px solid #e8ecf2;border-bottom-left-radius:4px}.ktlc-attachment img{display:block;margin-top:8px;max-width:180px;max-height:180px;border-radius:10px}.ktlc-form{padding:12px;background:#fff;border-top:1px solid #edf0f5}.ktlc-guest-fields{display:flex;gap:8px;margin-bottom:8px}.ktlc-guest-fields input{width:50%;padding:9px;border:1px solid #d8dee8;border-radius:8px}.ktlc-actions{display:flex;align-items:center;gap:8px;margin-bottom:8px;font-size:12px}.ktlc-actions button,.ktlc-file-btn{border:1px solid #d8dee8;background:#fff;color:#1d2733;border-radius:8px;padding:7px 9px;cursor:pointer;font-size:12px}.ktlc-file-btn input{display:none}#ktlc-file-name{color:#6b7280;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:120px}.ktlc-input-row{display:flex;gap:8px}.ktlc-input-row textarea{flex:1;resize:none;height:48px;border:1px solid #d8dee8;border-radius:10px;padding:9px}.ktlc-input-row button{border:0;color:#fff;border-radius:10px;padding:0 16px;font-weight:700;cursor:pointer}.ktlc-note{font-size:11px;color:#6b7280;margin-top:6px}.ktlc-hidden{display:none!important}@media(max-width:480px){.ktlc-window{right:10px;left:10px;width:auto;bottom:74px}.ktlc-button{right:16px;bottom:16px}}.ktlc-youtube{margin-top:8px;position:relative;width:220px;max-width:100%;aspect-ratio:16/9;border-radius:10px;overflow:hidden;background:#000}.ktlc-youtube iframe{width:100%;height:100%;display:block}.ktlc-msg.customer .ktlc-youtube{background:#000}.ktlc-msg.customer .ktlc-attachment img{border:1px solid rgb(255 255 255 / .45)}.ktlc-youtube iframe{border:0;pointer-events:auto;position:absolute;inset:0}.ktlc-window{width:390px;height:600px;max-height:calc(100vh - 100px)}.ktlc-body{height:374px}.ktlc-msg span{max-width:96%;display:block;box-sizing:border-box}.ktlc-youtube{width:320px;max-width:100%;aspect-ratio:16/9;border-radius:12px}.ktlc-youtube iframe{width:100%;height:100%;position:absolute;inset:0;border:0}@media(max-width:480px){.ktlc-window{width:auto;height:calc(100vh - 92px);max-height:calc(100vh - 92px)}.ktlc-body{height:calc(100vh - 280px)}.ktlc-youtube{width:100%}}.ktlc-error{font-size:12px;color:#b42318;margin-top:6px}.ktlc-ended{font-size:12px;color:#5d6778;background:#fff7ed;border:1px solid #fed7aa;border-radius:8px;padding:7px 8px;margin-top:6px}.ktlc-ended button{border:1px solid #d8dee8;background:#fff;border-radius:6px;padding:3px 7px;margin-left:6px;cursor:pointer}.ktlc-agent-name{font-weight:700;color:#475569;font-size:12px}