:root{--primary:#c0392b;--primary-dark:#a93226;--primary-light:#e74c3c;--accent:#f39c12;--bg:#fafafa;--bg-card:#fff;--bg-dark:#2c3e50;--text:#2c3e50;--text-light:#7f8c8d;--border:#e0e0e0;--shadow:0 2px 12px #00000014;--radius:12px;--radius-sm:8px;--max-width:1200px;--header-height:64px}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;font-family:Noto Sans SC,Noto Sans JP,-apple-system,BlinkMacSystemFont,sans-serif;line-height:1.6}a{color:inherit;text-decoration:none}button{cursor:pointer;border:none;font-family:inherit}input,textarea,select{font-family:inherit;font-size:inherit}.container{max-width:var(--max-width);margin:0 auto;padding:0 20px}.header{z-index:100;border-bottom:1px solid var(--border);height:var(--header-height);background:#fff;position:sticky;top:0}.header-inner{height:100%;max-width:var(--max-width);justify-content:space-between;align-items:center;margin:0 auto;padding:0 20px;display:flex}.header-logo{color:var(--primary);align-items:center;gap:10px;font-size:1.3rem;font-weight:900;display:flex}.header-logo .logo-icon{font-size:1.6rem}.header-logo .logo-sub{color:var(--text-light);font-size:.65rem;font-weight:400;line-height:1;display:block}.header-nav{align-items:center;gap:4px;display:flex}.header-nav a{border-radius:var(--radius-sm);color:var(--text);white-space:nowrap;padding:8px 14px;font-size:.9rem;font-weight:500;transition:all .2s}.header-nav a:hover,.header-nav a.active{background:var(--primary);color:#fff}.header-actions{align-items:center;gap:12px;display:flex}.btn{border-radius:var(--radius-sm);align-items:center;gap:6px;padding:8px 20px;font-size:.9rem;font-weight:500;transition:all .2s;display:inline-flex}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-dark)}.btn-outline{border:1.5px solid var(--primary);color:var(--primary);background:0 0}.btn-outline:hover{background:var(--primary);color:#fff}.btn-accent{background:var(--accent);color:#fff}.btn-accent:hover{background:#e67e22}.hero{background:linear-gradient(135deg, var(--primary) 0%, #8e44ad 100%);color:#fff;text-align:center;padding:80px 20px;position:relative;overflow:hidden}.hero:before{content:"";background:radial-gradient(circle,#ffffff0d 0%,#0000 60%);width:200%;height:200%;animation:20s ease-in-out infinite heroShift;position:absolute;top:-50%;left:-50%}@keyframes heroShift{0%,to{transform:translate(0)}50%{transform:translate(5%,5%)}}.hero-content{z-index:1;max-width:700px;margin:0 auto;position:relative}.hero h1{letter-spacing:2px;margin-bottom:16px;font-size:2.8rem;font-weight:900}.hero p{opacity:.9;margin-bottom:32px;font-size:1.15rem;line-height:1.8}.hero-actions{flex-wrap:wrap;justify-content:center;gap:16px;display:flex}.hero-actions .btn{padding:12px 32px;font-size:1rem}.hero-actions .btn-outline{color:#fff;border-color:#fff}.hero-actions .btn-outline:hover{color:var(--primary);background:#fff}.card-grid{grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px;display:grid}.card{background:var(--bg-card);border-radius:var(--radius);box-shadow:var(--shadow);transition:transform .2s,box-shadow .2s;overflow:hidden}.card:hover{transform:translateY(-4px);box-shadow:0 8px 24px #0000001f}.card-body{padding:24px}.card-icon{border-radius:12px;justify-content:center;align-items:center;width:48px;height:48px;margin-bottom:16px;font-size:1.5rem;display:flex}.card h3{margin-bottom:8px;font-size:1.1rem;font-weight:700}.card p{color:var(--text-light);font-size:.9rem;line-height:1.6}.card-tag{color:var(--primary);background:#fef0ef;border-radius:4px;margin-top:12px;padding:4px 10px;font-size:.75rem;font-weight:500;display:inline-block}.section{padding:60px 20px}.section-title{text-align:center;margin-bottom:12px;font-size:1.8rem;font-weight:900}.section-subtitle{text-align:center;color:var(--text-light);margin-bottom:40px;font-size:1rem}.page-header{background:linear-gradient(135deg, var(--primary) 0%, #8e44ad 100%);color:#fff;text-align:center;padding:48px 20px}.page-header h1{margin-bottom:8px;font-size:2rem;font-weight:900}.page-header p{opacity:.9;font-size:1rem}.content-list{flex-direction:column;gap:16px;display:flex}.content-item{background:var(--bg-card);border-radius:var(--radius);box-shadow:var(--shadow);align-items:flex-start;gap:20px;padding:24px;transition:transform .2s;display:flex}.content-item:hover{transform:translate(4px)}.content-item .item-number{background:var(--primary);color:#fff;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:40px;height:40px;font-weight:700;display:flex}.content-item h3{margin-bottom:4px;font-size:1.05rem;font-weight:700}.content-item p{color:var(--text-light);font-size:.88rem}.footer{background:var(--bg-dark);color:#fffc;text-align:center;padding:40px 20px}.footer h3{color:#fff;margin-bottom:8px;font-size:1.2rem}.footer p{margin-bottom:20px;font-size:.85rem}.footer-links{flex-wrap:wrap;justify-content:center;gap:24px;display:flex}.footer-links a{font-size:.85rem;transition:color .2s}.footer-links a:hover{color:#fff}.search-bar{gap:12px;max-width:600px;margin:0 auto 40px;display:flex}.search-bar input{border:2px solid var(--border);border-radius:var(--radius-sm);outline:none;flex:1;padding:12px 20px;font-size:1rem;transition:border-color .2s}.search-bar input:focus{border-color:var(--primary)}.search-bar button{background:var(--primary);color:#fff;border-radius:var(--radius-sm);padding:12px 28px;font-size:1rem;font-weight:500}.form-container{background:var(--bg-card);border-radius:var(--radius);max-width:420px;box-shadow:var(--shadow);margin:40px auto;padding:40px}.form-container h2{text-align:center;margin-bottom:24px;font-size:1.5rem}.form-group{margin-bottom:20px}.form-group label{color:var(--text);margin-bottom:6px;font-size:.9rem;font-weight:500;display:block}.form-group input{border:2px solid var(--border);border-radius:var(--radius-sm);outline:none;width:100%;padding:10px 16px;font-size:.95rem;transition:border-color .2s}.form-group input:focus{border-color:var(--primary)}.form-container .btn{justify-content:center;width:100%;padding:12px;font-size:1rem}.form-footer{text-align:center;color:var(--text-light);margin-top:16px;font-size:.9rem}.form-footer a{color:var(--primary);font-weight:500}.chat-container{background:var(--bg-card);border-radius:var(--radius);max-width:700px;box-shadow:var(--shadow);flex-direction:column;height:500px;margin:0 auto;display:flex;overflow:hidden}.chat-messages{flex-direction:column;flex:1;gap:16px;padding:24px;display:flex;overflow-y:auto}.chat-message{gap:12px;max-width:80%;display:flex}.chat-message.bot{align-self:flex-start}.chat-message.user{flex-direction:row-reverse;align-self:flex-end}.chat-avatar{border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:36px;height:36px;font-size:1rem;display:flex}.chat-avatar.bot{background:var(--primary);color:#fff}.chat-avatar.user{background:var(--accent);color:#fff}.chat-bubble{border-radius:12px;padding:12px 16px;font-size:.92rem;line-height:1.6}.chat-message.bot .chat-bubble{background:#f0f0f0;border-top-left-radius:4px}.chat-message.user .chat-bubble{background:var(--primary);color:#fff;border-top-right-radius:4px}.chat-input{border-top:1px solid var(--border);gap:12px;padding:16px 24px;display:flex}.chat-input input{border:2px solid var(--border);border-radius:var(--radius-sm);outline:none;flex:1;padding:10px 16px;font-size:.95rem}.chat-input input:focus{border-color:var(--primary)}.chat-input button{background:var(--primary);color:#fff;border-radius:var(--radius-sm);padding:10px 20px;font-weight:500}.filter-bar{flex-wrap:wrap;gap:12px;margin-bottom:24px;display:flex}.filter-bar select{border:2px solid var(--border);border-radius:var(--radius-sm);background:#fff;outline:none;min-width:150px;padding:10px 16px;font-size:.9rem}.filter-bar select:focus{border-color:var(--primary)}.expert-card{background:var(--bg-card);border-radius:var(--radius);box-shadow:var(--shadow);align-items:flex-start;gap:20px;padding:24px;display:flex}.expert-avatar-lg{background:var(--primary);color:#fff;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:64px;height:64px;font-size:1.5rem;display:flex}.expert-info h3{margin-bottom:4px;font-size:1.1rem}.expert-info .expert-title{color:var(--primary);margin-bottom:8px;font-size:.85rem;font-weight:500}.expert-info .expert-desc{color:var(--text-light);margin-bottom:12px;font-size:.88rem}.expert-tags{flex-wrap:wrap;gap:8px;display:flex}.expert-tags span{color:var(--primary);background:#fef0ef;border-radius:4px;padding:4px 10px;font-size:.75rem}.profile-header{text-align:center;padding:40px 20px}.profile-avatar{background:var(--primary);color:#fff;border-radius:50%;justify-content:center;align-items:center;width:80px;height:80px;margin:0 auto 16px;font-size:2rem;display:flex}.menu-toggle{color:var(--text);background:0 0;padding:4px;font-size:1.5rem;display:none}@media (width<=768px){.header-nav{top:var(--header-height);border-bottom:1px solid var(--border);box-shadow:var(--shadow);background:#fff;flex-direction:column;padding:16px;display:none;position:absolute;left:0;right:0}.header-nav.open{display:flex}.menu-toggle{display:block}.hero h1{font-size:1.8rem}.page-header h1{font-size:1.5rem}.section-title{font-size:1.4rem}.card-grid{grid-template-columns:1fr}.chat-message{max-width:90%}.expert-card{flex-direction:column}}.text-center{text-align:center}.mt-8{margin-top:8px}.mt-16{margin-top:16px}.mt-24{margin-top:24px}.mt-40{margin-top:40px}.mb-8{margin-bottom:8px}.mb-16{margin-bottom:16px}.mb-24{margin-bottom:24px}.gap-16{gap:16px}.flex-center{justify-content:center;align-items:center;display:flex}.quick-links{flex-wrap:wrap;justify-content:center;gap:12px;margin-top:32px;display:flex}.quick-link{background:var(--bg-card);border-radius:var(--radius);box-shadow:var(--shadow);flex-direction:column;align-items:center;gap:8px;min-width:120px;padding:20px 28px;transition:transform .2s;display:flex}.quick-link:hover{transform:translateY(-4px)}.quick-link .ql-icon{font-size:2rem}.quick-link .ql-label{font-size:.85rem;font-weight:500}