:root{--fc-primary: #6C63FF;--fc-primary-dark: #5A52D5;--fc-secondary: #FF6584;--fc-background: #F8F9FA;--fc-container-bg: #FFFFFF;--fc-messages-bg: #F0F2F5;--fc-input-bg: #FFFFFF;--fc-user-msg-bg: #6C63FF;--fc-bot-msg-bg: #FFFFFF;--fc-text: #333333;--fc-border: #E0E0E0;--fc-font-family: "Noto Sans JP", "Hiragino Kaku Gothic ProN", sans-serif;--fc-font-size: 14px;--fc-border-radius: 12px;--fc-header-display: flex;--fc-code-bg: #f7fafc;--fc-code-border: #e2e8f0;--fc-code-text: #e53e3e}.fc-chat{display:flex;flex-direction:column;height:100%;background:var(--fc-container-bg);font-family:var(--fc-font-family);font-size:var(--fc-font-size);color:var(--fc-text);overflow:hidden}.fc-chat-header{display:var(--fc-header-display);align-items:center;gap:10px;padding:12px 16px;border-bottom:1px solid var(--fc-border);background:var(--fc-container-bg)}.fc-chat-logo{width:32px;height:32px;object-fit:contain}.fc-chat-title{font-size:16px;font-weight:600;margin:0}.fc-chat-messages{flex:1;overflow-y:auto;padding:16px;background:var(--fc-messages-bg)}.fc-chat-messages::-webkit-scrollbar{width:6px}.fc-chat-messages::-webkit-scrollbar-track{background:transparent}.fc-chat-messages::-webkit-scrollbar-thumb{background:#c1c1c1;border-radius:3px}.fc-msg{margin-bottom:12px;max-width:85%}.fc-msg-user{margin-left:auto}.fc-msg-user .fc-msg-content{background:var(--fc-user-msg-bg);color:#fff;border-radius:var(--fc-border-radius) var(--fc-border-radius) 4px var(--fc-border-radius);padding:10px 14px;line-height:1.5}.fc-msg-bot{margin-right:auto}.fc-msg-bot .fc-msg-content{background:var(--fc-bot-msg-bg);color:var(--fc-text);border-radius:var(--fc-border-radius) var(--fc-border-radius) var(--fc-border-radius) 4px;padding:10px 14px;line-height:1.6;border:1px solid var(--fc-border)}.fc-msg-bot .fc-msg-content h1,.fc-msg-bot .fc-msg-content h2,.fc-msg-bot .fc-msg-content h3{margin:.5em 0;font-weight:600}.fc-msg-bot .fc-msg-content h1{font-size:1.3em}.fc-msg-bot .fc-msg-content h2{font-size:1.15em}.fc-msg-bot .fc-msg-content h3{font-size:1.05em}.fc-msg-bot .fc-msg-content code{background:var(--fc-code-bg);border:1px solid var(--fc-code-border);border-radius:4px;padding:1px 4px;font-size:.9em;color:var(--fc-code-text);font-family:Courier New,monospace}.fc-msg-bot .fc-msg-content pre{background:#2d3748;color:#e2e8f0;border-radius:6px;padding:12px;overflow-x:auto;margin:.5em 0}.fc-msg-bot .fc-msg-content pre code{background:transparent;border:none;padding:0;color:inherit}.fc-msg-bot .fc-msg-content ul,.fc-msg-bot .fc-msg-content ol{margin:.5em 0;padding-left:1.5em}.fc-msg-bot .fc-msg-content li{margin:.2em 0}.fc-msg-bot .fc-msg-content blockquote{border-left:3px solid #cbd5e0;padding-left:.75em;margin:.5em 0;color:#718096}.fc-msg-bot .fc-msg-content table{border-collapse:collapse;width:100%;margin:.5em 0;font-size:.95em}.fc-msg-bot .fc-msg-content th,.fc-msg-bot .fc-msg-content td{border:1px solid var(--fc-border);padding:6px 8px;text-align:left}.fc-msg-bot .fc-msg-content th{background:var(--fc-code-bg);font-weight:600}.fc-msg-bot .fc-msg-content a{color:var(--fc-primary);text-decoration:underline}.fc-chat-input-wrapper{display:flex;align-items:flex-end;gap:8px;padding:12px 16px;border-top:1px solid var(--fc-border);background:var(--fc-input-bg)}.fc-chat-input{flex:1;border:1px solid var(--fc-border);border-radius:20px;padding:8px 16px;font-size:var(--fc-font-size);font-family:inherit;resize:none;outline:none;line-height:1.4;max-height:120px;overflow-y:auto;scrollbar-width:none}.fc-chat-input::-webkit-scrollbar{display:none}.fc-chat-input:focus{border-color:var(--fc-primary);box-shadow:0 0 0 2px #6c63ff1a}.fc-chat-send{background:var(--fc-primary);color:#fff;border:none;border-radius:50%;width:36px;height:36px;cursor:pointer;font-size:0;flex-shrink:0;transition:transform .15s,opacity .15s;display:flex;align-items:center;justify-content:center}.fc-chat-send svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}.fc-chat-send:hover{transform:scale(1.05)}.fc-chat-send:active{transform:scale(.95)}.fc-chat-send:disabled{opacity:.5;cursor:not-allowed}.fc-typing-indicator{display:flex;gap:4px;padding:10px 14px;background:var(--fc-bot-msg-bg);border:1px solid var(--fc-border);border-radius:var(--fc-border-radius);width:fit-content;margin-bottom:12px}.fc-typing-indicator span{width:8px;height:8px;background:#999;border-radius:50%;animation:fc-typing 1.4s infinite ease-in-out}.fc-typing-indicator span:nth-child(1){animation-delay:-.32s}.fc-typing-indicator span:nth-child(2){animation-delay:-.16s}@keyframes fc-typing{0%,80%,to{transform:scale(.8);opacity:.5}40%{transform:scale(1);opacity:1}}.fc-msg-error{color:#dc3545;font-size:13px;padding:8px 12px;background:#fff5f5;border-radius:6px;margin-top:8px}.fc-source-info{margin-top:10px;padding-top:10px;border-top:1px solid var(--fc-border);font-size:13px}.fc-source-label{color:#6c757d;font-weight:600;margin-bottom:6px}.fc-source-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:4px}.fc-source-item{display:flex;align-items:center;gap:6px}.fc-source-link{color:var(--fc-primary);text-decoration:none;font-size:13px}.fc-source-link:hover{text-decoration:underline}.fc-source-score{background:var(--fc-primary);color:#fff;padding:1px 6px;border-radius:8px;font-size:11px;font-weight:600}.fc-feedback{margin-top:8px;padding-top:8px}.fc-feedback-rating{display:flex;align-items:center;gap:8px}.fc-feedback-label{font-size:12px;color:#6c757d}.fc-feedback-stars{display:flex;gap:2px}.fc-feedback-star{background:none;border:none;font-size:18px;cursor:pointer;color:#ccc;padding:0 2px;transition:color .15s}.fc-feedback-star:hover,.fc-feedback-star--active{color:gold}.fc-feedback-form{margin-top:8px;display:flex;flex-direction:column;gap:6px}.fc-feedback-comment{border:1px solid var(--fc-border);border-radius:8px;padding:8px;font-size:13px;font-family:inherit;resize:none;outline:none}.fc-feedback-comment:focus{border-color:var(--fc-primary)}.fc-feedback-submit{align-self:flex-end;background:var(--fc-primary);color:#fff;border:none;border-radius:6px;padding:6px 16px;font-size:13px;cursor:pointer}.fc-feedback-submit:disabled{opacity:.5}.fc-feedback-thanks{font-size:13px;color:#28a745}.fc-feedback-error{font-size:12px;color:#dc3545}.fc-faq{padding:8px 0}.fc-faq-title{font-size:13px;font-weight:600;color:#6c757d;margin-bottom:8px}.fc-faq-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:4px}.fc-faq-item{background:var(--fc-container-bg);border:1px solid var(--fc-border);border-radius:8px;padding:10px 14px;cursor:pointer;font-size:13px;transition:background .15s,border-color .15s}.fc-faq-item:hover,.fc-faq-item:focus{background:var(--fc-messages-bg);border-color:var(--fc-primary);outline:none}.fc-chat-welcome{text-align:center;color:#6c757d;padding:16px;font-size:14px}@media(max-width:480px){.fc-chat-messages{padding:10px}.fc-chat-input-wrapper{padding:8px 10px}.fc-msg{max-width:95%}}.fc-popup-icon{position:fixed;bottom:30px;right:30px;width:56px;height:56px;background:var(--fc-primary, #6C63FF);border-radius:50%;border:none;display:flex;align-items:center;justify-content:center;cursor:pointer;box-shadow:0 4px 12px #0003;z-index:10000;transition:transform .2s,box-shadow .2s;font-size:24px}.fc-popup-icon:hover{transform:scale(1.08);box-shadow:0 6px 16px #00000040}.fc-popup-icon img{width:28px;height:28px;object-fit:contain}.fc-popup-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:#0006;z-index:10001;opacity:0;transition:opacity .25s}.fc-popup-overlay[style*=block]{opacity:1}.fc-popup-container{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);z-index:10002;border-radius:12px;box-shadow:0 16px 40px #00000026;overflow:hidden;display:flex;flex-direction:column;background:var(--fc-container-bg, #FFFFFF);max-width:95vw;max-height:90vh;animation:fc-popup-fade-in .25s ease-out}@keyframes fc-popup-fade-in{0%{opacity:0;transform:translate(-50%,-50%) scale(.95)}to{opacity:1;transform:translate(-50%,-50%) scale(1)}}.fc-popup-header{display:flex;justify-content:space-between;align-items:center;padding:10px 16px;background:var(--fc-primary, #6C63FF);color:#fff;-webkit-user-select:none;user-select:none;flex-shrink:0}.fc-popup-title{font-weight:600;font-size:15px}.fc-popup-controls{display:flex;align-items:center;gap:6px}.fc-popup-size-btn{background:#fff3;border:none;color:#fff;border-radius:4px;padding:2px 8px;cursor:pointer;font-size:12px;transition:background .15s}.fc-popup-size-btn:hover{background:#ffffff59}.fc-popup-reset{background:none;border:none;color:#fff;font-size:16px;cursor:pointer;width:28px;height:28px;display:flex;align-items:center;justify-content:center;border-radius:4px;transition:background .15s}.fc-popup-reset:hover{background:#fff3}.fc-popup-close{background:none;border:none;color:#fff;font-size:20px;cursor:pointer;width:28px;height:28px;display:flex;align-items:center;justify-content:center;border-radius:4px;transition:background .15s}.fc-popup-close:hover{background:#fff3}.fc-popup-chat{flex:1;overflow:hidden;min-height:0}@media(max-width:768px){.fc-popup-container{width:95vw!important;height:85vh!important;border-radius:10px}.fc-popup-icon{width:48px;height:48px;bottom:20px;right:20px;font-size:20px}}@media(max-width:480px){.fc-popup-container{width:100vw!important;height:100vh!important;border-radius:0;top:0;left:0;transform:none;max-width:none;max-height:none}.fc-popup-header{padding:8px 12px}}