.admin-shell{display:flex;min-height:100vh;background:#f0f2f5}.admin-sidebar{width:240px;flex-shrink:0;background:#1a237e;color:#e8eaf6;display:flex;flex-direction:column;padding:20px 0 16px;box-shadow:2px 0 12px #0000000f}.admin-brand{display:flex;align-items:flex-start;gap:12px;padding:0 18px 20px;border-bottom:1px solid rgba(255,255,255,.12);margin-bottom:12px}.admin-brand-mark{width:40px;height:40px;border-radius:10px;background:linear-gradient(135deg,#5c6bc0,#3949ab);display:flex;align-items:center;justify-content:center;font-weight:800;color:#fff;flex-shrink:0}.admin-brand-title{font-weight:700;font-size:1rem}.admin-brand-sub{font-size:.75rem;opacity:.85;margin-top:4px;word-break:break-all}.admin-nav{display:flex;flex-direction:column;gap:2px;padding:0 10px;flex:1}.admin-nav-link{display:block;padding:10px 14px;border-radius:8px;color:#c5cae9;font-size:.9rem;text-decoration:none;transition:background .2s,color 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#0000000a}.admin-stat-value{font-size:1.75rem;font-weight:800;color:#1a237e}.admin-stat-label{font-size:.85rem;color:#607d8b;margin-top:6px}.admin-table-wrap{background:#fff;border-radius:12px;border:1px solid #e0e6ed;overflow:auto}.admin-table{width:100%;border-collapse:collapse;font-size:.9rem}.admin-table th,.admin-table td{padding:12px 14px;text-align:left;border-bottom:1px solid #eceff1}.admin-table th{background:#fafafa;font-weight:600;color:#455a64}.admin-table tr:last-child td{border-bottom:none}.admin-col-actions{white-space:nowrap;width:1%}.admin-btn{display:inline-flex;align-items:center;justify-content:center;padding:8px 14px;border-radius:8px;border:1px solid #cfd8dc;background:#fff;color:#37474f;font-size:.875rem;cursor:pointer;transition:background .2s,border-color 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h2{font-size:1.15rem;margin-bottom:16px;color:#1a1a2e}.admin-form-row{margin-bottom:14px}.admin-form-row label{display:block;font-size:.8rem;font-weight:600;color:#546e7a;margin-bottom:6px}.admin-form-row input[type=text],.admin-form-row input[type=email],.admin-form-row input[type=password],.admin-form-row input[type=number],.admin-form-row select,.admin-form-row textarea{width:100%;padding:10px 12px;border:1px solid #cfd8dc;border-radius:8px;font-size:.9rem;font-family:inherit}.admin-form-row textarea{resize:vertical;min-height:88px}.admin-modal-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:18px;padding-top:14px;border-top:1px solid #eceff1}.admin-login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(160deg,#e8eaf6,#fafafa,#e3f2fd);padding:24px}.admin-login-card{width:100%;max-width:400px;background:#fff;border-radius:16px;padding:28px 26px 22px;box-shadow:0 8px 40px #1a237e1a;border:1px solid #e8eaf6}.admin-brand-inline{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.2rem;color:#1a237e;text-decoration:none;margin-bottom:12px}.admin-login-hint{font-size:.85rem;color:#607d8b;line-height:1.5;margin-bottom:18px}.admin-login-footer{text-align:center;margin-top:18px;font-size:.88rem;color:#78909c}.admin-login-footer a{color:#1565c0}.admin-dot{margin:0 8px;opacity:.5}.admin-detail-meta{margin-bottom:12px;color:#546e7a}.admin-message-body{white-space:pre-wrap;word-break:break-word;font-family:inherit;font-size:.9rem;line-height:1.6;background:#f5f5f5;padding:14px;border-radius:8px;max-height:360px;overflow:auto}.form-msg.err{color:#c62828;font-size:.88rem;margin-bottom:12px}:root{--primary: #1a237e;--primary-light: #3f51b5;--accent: #1565c0;--accent-light: #e3f2fd;--bg: #fafbfc;--white: #ffffff;--text: #1a1a2e;--text-secondary: #546e7a;--text-muted: #90a4ae;--border: #e0e6ed;--shadow: 0 2px 16px rgba(0, 0, 0, .07);--shadow-hover: 0 8px 30px rgba(26, 35, 126, .12);--radius: 12px;--radius-sm: 8px;--transition: .25s cubic-bezier(.4, 0, .2, 1);--max-width: 1240px}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,PingFang SC,Microsoft YaHei,Helvetica Neue,sans-serif;background:var(--bg);color:var(--text);line-height:1.7;-webkit-font-smoothing:antialiased}a{text-decoration:none;color:var(--accent);transition:var(--transition)}a:hover{color:var(--primary)}.container{max-width:var(--max-width);margin:0 auto;padding:0 24px}.navbar{background:var(--white);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:100;padding:0 24px;box-shadow:0 1px 6px #0000000a}.navbar .container{display:flex;align-items:center;justify-content:space-between;height:64px}.navbar .logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.35rem;color:var(--primary);text-decoration:none;letter-spacing:-.02em}.navbar .logo-icon{width:38px;height:38px;border-radius:var(--radius-sm);background:linear-gradient(135deg,var(--primary),var(--accent));display:flex;align-items:center;justify-content:center;color:#fff;font-weight:900;font-size:1rem}.nav-links{display:flex;list-style:none;gap:4px;align-items:center;flex-wrap:wrap}.nav-links a{display:block;padding:8px 16px;border-radius:20px;color:var(--text-secondary);font-weight:500;font-size:.9rem;transition:var(--transition);white-space:nowrap}.nav-links a:hover,.nav-links a.active{background:var(--accent-light);color:var(--primary);font-weight:600}.nav-actions{display:flex;gap:10px;align-items:center}.btn{padding:9px 22px;border-radius:22px;font-weight:600;font-size:.875rem;cursor:pointer;border:none;transition:var(--transition);font-family:inherit;white-space:nowrap;text-decoration:none;display:inline-flex;align-items:center;gap:6px}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:#283593;transform:translateY(-1px);box-shadow:0 4px 16px #1a237e40}.btn-outline{background:transparent;color:var(--primary);border:1.5px solid var(--primary)}.btn-outline:hover{background:var(--accent-light)}.btn-sm{padding:6px 14px;font-size:.8rem;border-radius:16px;font-weight:600;cursor:pointer;border:1.5px solid var(--primary);background:transparent;color:var(--primary);transition:var(--transition);text-decoration:none;display:inline-flex;align-items:center;gap:4px}.btn-sm:hover{background:var(--accent-light)}.hero{background:linear-gradient(135deg,#e8eaf6,#e3f2fd 40%,#fff);padding:70px 0 60px;text-align:center}.hero .badge{display:inline-block;padding:6px 18px;border-radius:20px;background:#1565c01a;border:1px solid rgba(21,101,192,.25);color:var(--accent);font-weight:600;font-size:.8rem;letter-spacing:.04em;text-transform:uppercase;margin-bottom:18px}.hero h1{font-size:2.8rem;font-weight:900;letter-spacing:-.03em;color:var(--primary);margin-bottom:14px;line-height:1.2}.hero h1 span{color:var(--accent)}.hero p{color:var(--text-secondary);max-width:640px;margin:0 auto 28px;font-size:1.05rem;line-height:1.7}.hero .hero-btns{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}.robot-showcase{padding:50px 0 40px;text-align:center}.robot-showcase h2{font-size:1.5rem;font-weight:800;color:var(--primary);margin-bottom:28px}.robot-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.robot-card{background:var(--white);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:var(--transition);text-align:center;cursor:pointer}.robot-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}.robot-card .robot-img{height:200px;background:#e8eaf6;display:flex;align-items:center;justify-content:center;font-size:5rem;position:relative;overflow:hidden}.robot-card .robot-img .img-label{position:absolute;bottom:8px;right:12px;background:#1a237ed9;color:#fff;padding:3px 10px;border-radius:10px;font-size:.7rem;font-weight:600}.robot-card .robot-body{padding:14px 16px}.robot-card .robot-body h4{font-weight:700;font-size:.95rem;margin-bottom:4px;color:var(--text)}.robot-card .robot-body p{font-size:.78rem;color:var(--text-muted)}.section{padding:20px 0 50px}.section-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px;flex-wrap:wrap;gap:10px}.section-header h2{font-size:1.45rem;font-weight:800;color:var(--primary);display:flex;align-items:center;gap:10px}.section-header h2 .dot{width:8px;height:8px;border-radius:50%;background:var(--accent);display:inline-block}.section-header .view-all{color:var(--accent);font-weight:600;font-size:.85rem;text-decoration:none}.section-header .view-all:hover{color:var(--primary)}.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:18px}.card{background:var(--white);border:1px solid var(--border);border-radius:var(--radius);padding:22px 20px;transition:var(--transition);cursor:pointer;display:flex;flex-direction:column;gap:8px}.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:var(--accent)}.card .card-icon{font-size:2rem;margin-bottom:4px}.card h3{font-weight:700;font-size:.95rem;color:var(--text)}.card .card-desc{font-size:.8rem;color:var(--text-muted);line-height:1.5;flex:1}.card .card-tag{display:inline-block;padding:3px 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10px;border-radius:12px;font-size:.7rem;font-weight:600;background:var(--accent-light);color:var(--accent)}.tag.green{background:#e0f2f1;color:#00695c}.tag.orange{background:#fff3e0;color:#e65100}.tag.purple{background:#f3e5f5;color:#7b1fa2}.tag.teal{background:#e0f7fa;color:#00838f}.code-block{background:#f5f7fa;border:1px solid var(--border);border-radius:var(--radius-sm);padding:12px 14px;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-size:.78rem;color:var(--text-secondary);white-space:pre-wrap;word-break:break-word;margin-top:8px}.featured-card{cursor:default}.search-bar{display:flex;gap:10px;max-width:600px;margin:0 auto 20px;flex-wrap:wrap;justify-content:center}.search-bar input{flex:1;min-width:220px;padding:11px 18px;border:1.5px solid var(--border);border-radius:24px;font-size:.9rem;outline:none;font-family:inherit;transition:var(--transition)}.search-bar input:focus{border-color:var(--accent);box-shadow:0 0 0 3px 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textarea{min-height:120px;resize:vertical}.form-msg{font-size:.85rem;margin-top:10px}.form-msg.ok{color:#2e7d32}.form-msg.err{color:#c62828}.auth-page{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px;background:linear-gradient(135deg,#e8eaf6,#e3f2fd 40%,#fafbfc)}.auth-container{background:var(--white);border-radius:var(--radius);box-shadow:0 4px 24px #00000014;padding:42px 36px;width:100%;max-width:440px;border:1px solid var(--border)}.auth-container .logo{display:flex;align-items:center;gap:10px;justify-content:center;margin-bottom:28px;text-decoration:none}.auth-container .logo-icon{width:42px;height:42px;border-radius:8px;background:linear-gradient(135deg,var(--primary),var(--accent));display:flex;align-items:center;justify-content:center;color:#fff;font-weight:900;font-size:1.1rem}.auth-container .logo-text{font-weight:800;font-size:1.4rem;color:var(--primary)}.auth-container 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var(--border);background:var(--white);cursor:pointer;font-family:inherit;font-size:.88rem;color:var(--text);transition:var(--transition)}.nav-user-trigger:hover{border-color:var(--accent-light);box-shadow:var(--shadow)}.nav-user-avatar{width:30px;height:30px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff;font-weight:800;font-size:.85rem;display:flex;align-items:center;justify-content:center}.nav-user-name{max-width:120px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-weight:600}.nav-user-chevron{font-size:.65rem;color:var(--text-muted);margin-left:2px}.nav-user-dropdown{position:absolute;right:0;top:calc(100% + 8px);min-width:180px;background:var(--white);border:1px solid var(--border);border-radius:var(--radius-sm);box-shadow:var(--shadow-hover);padding:8px 0;z-index:200}.nav-user-dropdown a,.nav-user-dropdown button{display:block;width:100%;text-align:left;padding:10px 16px;font-size:.9rem;border:none;background:none;color:var(--text);text-decoration:none;font-family:inherit;cursor:pointer;transition:background .15s}.nav-user-dropdown a:hover,.nav-user-dropdown button:hover{background:var(--accent-light);color:var(--primary)}.nav-dropdown-logout{color:#c62828!important;border-top:1px solid var(--border)!important;margin-top:4px;padding-top:12px!important}.account-page{padding:32px 0 56px}.account-banner{padding:14px 18px;border-radius:var(--radius-sm);margin-bottom:24px;display:flex;flex-direction:column;gap:4px;outline:none}.account-banner.success{background:#e8f5e9;border:1px solid #a5d6a7;color:#1b5e20}.account-banner.success span{font-size:.9rem;font-weight:500}.account-header h1{font-size:1.75rem;font-weight:800;color:var(--primary);margin-bottom:8px}.account-lead{color:var(--text-secondary);margin-bottom:28px}.account-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:22px}.account-card{background:var(--white);border:1px solid var(--border);border-radius:var(--radius);padding:22px 24px;box-shadow:var(--shadow)}.account-card h2{font-size:1.05rem;font-weight:700;color:var(--text);margin-bottom:16px;padding-bottom:10px;border-bottom:1px solid var(--border)}.account-dl{display:grid;grid-template-columns:auto 1fr;gap:8px 20px;font-size:.92rem}.account-dl dt{color:var(--text-muted);font-weight:600}.account-dl dd{margin:0;color:var(--text)}.account-links{list-style:none}.account-links li{margin-bottom:16px}.account-links li:last-child{margin-bottom:0}.account-links a{font-weight:700;color:var(--accent);font-size:.95rem}.account-link-desc{display:block;font-size:.82rem;color:var(--text-muted);font-weight:400;margin-top:4px}.account-breadcrumb{font-size:.88rem;color:var(--text-muted);margin-bottom:18px}.account-breadcrumb .sep{margin:0 8px;opacity:.6}.account-breadcrumb a{color:var(--accent);font-weight:600}.account-settings-list{display:flex;flex-direction:column;gap:18px}.settings-placeholder{font-size:.9rem;color:var(--text-secondary);line-height:1.6;margin:0}.account-back{margin-top:28px;font-size:.9rem}.text-muted{color:var(--text-muted)}@media (max-width: 900px){.robot-grid{grid-template-columns:repeat(2,1fr)}.hero h1{font-size:2rem}.nav-links{display:none}.navbar .container{flex-wrap:wrap;height:auto;padding:10px 0}}@media (max-width: 768px){.page-card-grid,.card-grid{grid-template-columns:1fr}.page-hero h1{font-size:1.7rem}.about-grid{grid-template-columns:1fr}}@media (max-width: 560px){.robot-grid{grid-template-columns:1fr}.hero{padding:40px 0}.hero h1{font-size:1.6rem}}