.floating-chat-button{position:fixed;bottom:30px;right:30px;width:60px;height:60px;background:linear-gradient(135deg,#667eea 0,#764ba2 100%);border-radius:50%;box-shadow:0 4px 20px rgba(102,126,234,.4);cursor:pointer;z-index:1000;display:flex;align-items:center;justify-content:center;transition:all .3s ease;text-decoration:none;border:none}.floating-chat-button:hover{transform:scale(1.1);box-shadow:0 6px 25px rgba(102,126,234,.6);background:linear-gradient(135deg,#764ba2 0,#667eea 100%)}.floating-chat-button:active{transform:scale(.95)}.floating-chat-button i{color:#fff;font-size:24px;transition:all .3s ease}.floating-chat-button:hover i{animation:bounce .6s infinite}.floating-chat-button::before{content:"お問い合わせチャット";position:absolute;right:70px;top:50%;transform:translateY(-50%);background:rgba(0,0,0,.8);color:#fff;padding:8px 12px;border-radius:6px;font-size:14px;white-space:nowrap;opacity:0;visibility:hidden;transition:all .3s ease;pointer-events:none}.floating-chat-button::after{content:"";position:absolute;right:60px;top:50%;transform:translateY(-50%);border:6px solid transparent;border-left-color:rgba(0,0,0,.8);opacity:0;visibility:hidden;transition:all .3s ease}.floating-chat-button:hover::after,.floating-chat-button:hover::before{opacity:1;visibility:visible}@keyframes bounce{0%,100%,20%,60%{transform:translateY(0)}40%{transform:translateY(-10px)}80%{transform:translateY(-5px)}}.floating-chat-button::after{content:"";position:absolute;top:0;left:0;width:100%;height:100%;border-radius:50%;background:linear-gradient(135deg,#667eea 0,#764ba2 100%);z-index:-1;animation:pulse 2s infinite}@keyframes pulse{0%{transform:scale(1);opacity:1}50%{transform:scale(1.2);opacity:.7}100%{transform:scale(1.4);opacity:0}}@media (max-width:768px){.floating-chat-button{bottom:20px;right:20px;width:50px;height:50px}.floating-chat-button i{font-size:20px}.floating-chat-button::before{display:none}.floating-chat-button::after{display:none}}.floating-chat-button.scroll-active{animation:slideInRight .5s ease-out}@keyframes slideInRight{from{transform:translateX(100px);opacity:0}to{transform:translateX(0);opacity:1}}