:root{--font-sans:'Plus Jakarta Sans','Noto Sans SC',-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;--bg-page:#fafafa;--bg-surface:#ffffff;--bg-muted:#f4f4f6;--bg-subtle:#f8fafc;--bg-card-feature:#fafafa;--bg-card-feature-border:#f4f4f5;--bg-card-feature-hover:#f4f4f5;--text-main:#09090b;--text-secondary:#52525b;--text-muted:#71717a;--text-inverse:#ffffff;--border-light:#e4e4e7;--border-subtle:#f1f1f4;--border-focus:#18181b;--primary:#18181b;--primary-hover:#27272a;--primary-text:#ffffff;--accent-blue:#2563eb;--accent-blue-subtle:#eff6ff;--accent-green:#059669;--accent-green-subtle:#ecfdf5;--accent-amber:#d97706;--accent-amber-subtle:#fffbeb;--accent-red:#dc2626;--accent-red-subtle:#fef2f2;--title-gradient:linear-gradient(135deg,#18181b 0%,#3f3f46 100%);--contact-card-bg:linear-gradient(180deg,#18181b 0%,#09090b 100%);--contact-card-border:1px solid transparent;--contact-card-shadow:0 16px 40px rgba(0,0,0,0.16);--contact-item-bg:rgba(255,255,255,0.05);--contact-item-border:1px solid rgba(255,255,255,0.08);--window-bg:#ffffff;--window-header-bg:#fafafa;--window-body-bg:#fcfcfc;--bubble-client-bg:#f4f4f5;--bubble-ai-bg:#f8fafc;--active-tab-bg:#18181b;--active-tab-text:#ffffff;--radius-sm:8px;--radius-md:14px;--radius-lg:20px;--radius-full:9999px;--shadow-sm:0 1px 2px rgba(0,0,0,0.04);--shadow-md:0 4px 12px rgba(0,0,0,0.05);--shadow-lg:0 12px 32px rgba(0,0,0,0.08);--shadow-highlight:0 0 0 1px rgba(0,0,0,0.06),0 2px 6px rgba(0,0,0,0.04);--transition:all 0.25s cubic-bezier(0.16,1,0.3,1);--unfold-transition:all 0.68s cubic-bezier(0.16,1,0.3,1)}[data-theme="dark"]{--bg-page:#0b0c0e;--bg-surface:#13151a;--bg-muted:#1c1f26;--bg-subtle:#171920;--bg-card-feature:#181b22;--bg-card-feature-border:rgba(255,255,255,0.06);--bg-card-feature-hover:#20242e;--text-main:#f4f4f5;--text-secondary:#a1a1aa;--text-muted:#71717a;--text-inverse:#09090b;--border-light:rgba(255,255,255,0.09);--border-subtle:rgba(255,255,255,0.05);--border-focus:#ffffff;--primary:#f4f4f5;--primary-hover:#ffffff;--primary-text:#09090b;--accent-blue:#3b82f6;--accent-blue-subtle:rgba(37,99,235,0.15);--accent-green:#10b981;--accent-green-subtle:rgba(5,150,105,0.15);--accent-amber:#f59e0b;--accent-amber-subtle:rgba(217,119,6,0.15);--accent-red:#ef4444;--accent-red-subtle:rgba(220,38,38,0.15);--contact-card-bg:linear-gradient(180deg,#181c25 0%,#11141c 100%);--contact-card-border:1px solid rgba(255,255,255,0.14);--contact-card-shadow:0 0 0 1px rgba(255,255,255,0.05),0 20px 48px -10px rgba(0,0,0,0.85);--contact-item-bg:rgba(255,255,255,0.05);--contact-item-border:1px solid rgba(255,255,255,0.08);--title-gradient:linear-gradient(135deg,#ffffff 15%,#93c5fd 100%);--window-bg:#14171e;--window-header-bg:#181c24;--window-body-bg:#111319;--bubble-client-bg:#1f232c;--bubble-ai-bg:#181c25;--active-tab-bg:#272b36;--active-tab-text:#ffffff;--shadow-sm:0 1px 2px rgba(0,0,0,0.35);--shadow-md:0 4px 16px rgba(0,0,0,0.45);--shadow-lg:0 12px 36px rgba(0,0,0,0.6);--shadow-highlight:0 0 0 1px rgba(255,255,255,0.08),0 2px 8px rgba(0,0,0,0.4)}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;font-size:16px;transition:background-color 0.3s ease,color 0.3s ease}body{font-family:var(--font-sans);background-color:var(--bg-page);color:var(--text-main);line-height:1.6;-webkit-font-smoothing:antialiased;transition:background-color 0.3s ease,color 0.3s ease}.container{width:100%;max-width:1140px;margin:0 auto;padding:0 24px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:600;border-radius:var(--radius-sm);text-decoration:none;cursor:pointer;transition:var(--transition);border:1px solid transparent;font-size:0.95rem}.btn-primary{background-color:var(--primary);color:var(--primary-text)}.btn-primary:hover{background-color:var(--primary-hover);transform:translateY(-1px)}.btn-secondary{background-color:var(--bg-surface);color:var(--text-main);border-color:var(--border-light)}.btn-secondary:hover{background-color:var(--bg-muted);border-color:#d4d4d8}.btn-outline{background-color:transparent;color:var(--text-main);border-color:var(--border-light)}.btn-outline:hover{background-color:var(--bg-muted)}.btn-sm{padding:8px 16px;font-size:0.875rem}.btn-xs{padding:4px 10px;font-size:0.75rem;border-radius:6px}.btn-lg{padding:14px 28px;font-size:1rem;border-radius:var(--radius-md)}.site-header{position:sticky;top:0;z-index:100;background-color:var(--header-bg,rgba(250,250,250,0.9));backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--border-light);transition:background-color 0.3s ease,border-color 0.3s ease}.header-inner{display:flex;align-items:center;justify-content:space-between;height:68px}.brand-logo{display:flex;align-items:center;gap:8px;text-decoration:none;color:var(--text-main)}.logo-mark{display:flex;align-items:center;justify-content:center;width:32px;height:32px;background-color:var(--primary);color:var(--primary-text);font-weight:700;font-size:0.95rem;border-radius:8px}.brand-name{font-size:1.15rem;font-weight:700;letter-spacing:-0.02em}.brand-tag{font-size:0.7rem;font-weight:700;text-transform:uppercase;background-color:var(--bg-muted);color:var(--text-secondary);padding:2px 6px;border-radius:4px;border:1px solid var(--border-light)}.main-nav{display:flex;gap:32px}.main-nav a{text-decoration:none;color:var(--text-secondary);font-size:0.9rem;font-weight:500;transition:var(--transition)}.main-nav a:hover{color:var(--text-main)}.header-action{display:flex;align-items:center;gap:12px}.theme-toggle-btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;background-color:var(--bg-surface);color:var(--text-main);border:1px solid var(--border-light);border-radius:var(--radius-full);padding:7px 14px;font-size:0.82rem;font-weight:600;cursor:pointer;transition:all 0.25s cubic-bezier(0.16,1,0.3,1);box-shadow:var(--shadow-sm);user-select:none}.theme-toggle-btn:hover{background-color:var(--bg-muted);border-color:#a1a1aa;transform:translateY(-1px)}.theme-toggle-btn:active{transform:translateY(0)}.theme-icon-sun,.theme-icon-moon{display:inline-block;line-height:1;font-size:0.95rem;transition:transform 0.3s ease}[data-theme="light"] .theme-icon-sun,:root:not([data-theme="dark"]) .theme-icon-sun{display:none !important}[data-theme="light"] .theme-icon-moon,:root:not([data-theme="dark"]) .theme-icon-moon{display:inline-block !important}[data-theme="dark"] .theme-icon-moon{display:none !important}[data-theme="dark"] .theme-icon-sun{display:inline-block !important;transform:rotate(15deg)}.theme-toggle-label{font-size:0.82rem;color:var(--text-secondary)}.theme-toggle-mobile{padding:6px 10px}.header-mobile-action{display:none}.hero-section{padding:70px 0 45px;text-align:center}.hero-badge{display:inline-flex;align-items:center;gap:8px;background-color:var(--bg-surface);border:1px solid var(--border-light);padding:6px 14px;border-radius:var(--radius-full);font-size:0.85rem;font-weight:500;color:var(--text-secondary);margin-bottom:24px;box-shadow:var(--shadow-sm)}.badge-dot{width:8px;height:8px;background-color:var(--accent-green);border-radius:50%;box-shadow:0 0 0 3px rgba(5,150,105,0.2)}.hero-title{font-size:2.85rem;line-height:1.25;font-weight:800;letter-spacing:-0.03em;color:var(--text-main);max-width:860px;margin:0 auto 20px}.text-highlight{background:var(--title-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;display:inline-block}.hero-desc{font-size:1.12rem;line-height:1.7;color:var(--text-secondary);max-width:720px;margin:0 auto 32px}.hero-actions{display:flex;justify-content:center;gap:16px;margin-bottom:32px}.hero-pain-strip{background-color:var(--bg-surface);border:1px solid var(--border-light);border-radius:var(--radius-md);padding:16px 24px;max-width:840px;margin:0 auto;box-shadow:var(--shadow-sm);display:flex;align-items:center;gap:16px;text-align:left}.strip-icon{font-size:1.4rem;flex-shrink:0}.strip-text{font-size:0.9rem;color:var(--text-secondary);line-height:1.5}.strip-text strong{color:var(--text-main)}.section{padding:70px 0}.section-header{text-align:center;max-width:680px;margin:0 auto 40px}.section-subtitle{font-size:0.75rem;font-weight:700;letter-spacing:0.1em;color:var(--accent-blue);text-transform:uppercase;display:block;margin-bottom:8px}.section-title{font-size:1.95rem;font-weight:700;letter-spacing:-0.02em;color:var(--text-main);margin-bottom:10px}.section-desc{font-size:0.96rem;color:var(--text-secondary)}.services-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch;transition:all 0.68s cubic-bezier(0.16,1,0.3,1)}.service-card{background-color:var(--bg-surface);border:1px solid var(--border-light);border-radius:var(--radius-lg);padding:26px;cursor:pointer;transition:transform 0.45s cubic-bezier(0.16,1,0.3,1),box-shadow 0.45s cubic-bezier(0.16,1,0.3,1),border-color 0.45s ease;position:relative;display:flex;flex-direction:column;height:100%}.service-card:hover{transform:translateY(-3px);border-color:#a1a1aa;box-shadow:var(--shadow-md)}.service-card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}.service-tag{font-size:0.72rem;font-weight:700;background-color:var(--bg-muted);color:var(--text-secondary);padding:3px 8px;border-radius:4px}.service-icon{width:38px;height:38px;background-color:var(--bg-muted);border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:1.15rem}.service-title{font-size:1.25rem;font-weight:800;margin-bottom:10px;color:var(--text-main);letter-spacing:-0.01em;min-height:32px}.service-desc{font-size:0.88rem;color:var(--text-secondary);line-height:1.6;margin-bottom:16px;min-height:64px}.card-features-list{display:flex;flex-direction:column;gap:10px;margin-bottom:16px;flex:1 0 auto}.card-feature-item{display:flex;align-items:flex-start;gap:10px;background-color:#fafafa;border:1px solid #f4f4f5;border-radius:8px;padding:10px 12px;min-height:66px;box-sizing:border-box;transition:background-color 0.2s ease}.card-feature-item:hover{background-color:#f4f4f5}.feature-check{display:inline-flex;align-items:center;justify-content:center;width:18px;height:18px;border-radius:50%;background-color:#ecfdf5;color:#059669;font-size:0.75rem;font-weight:800;flex-shrink:0;margin-top:2px}.feature-text{font-size:0.82rem;line-height:1.45}.feature-text strong{display:block;color:var(--text-main);font-size:0.84rem;margin-bottom:2px}.feature-text p{color:var(--text-muted);margin:0}.card-footer-fixed{margin-top:auto;display:flex;flex-direction:column;gap:12px;width:100%}.card-timeline-strip{display:inline-flex;align-items:center;font-size:0.76rem;font-weight:600;color:var(--accent-green);background-color:var(--accent-green-subtle);border:1px solid rgba(5,150,105,0.2);padding:5px 10px;border-radius:6px;height:30px;white-space:nowrap;box-sizing:border-box;align-self:flex-start;margin-bottom:0}.card-expand-prompt{display:flex;align-items:center;justify-content:space-between;font-size:0.82rem;font-weight:600;color:var(--accent-blue);padding-top:10px;border-top:1px dashed var(--border-subtle);height:32px;white-space:nowrap;box-sizing:border-box;width:100%}.service-card.is-expanded .card-footer-fixed{display:none}.service-expanded-body{display:grid;grid-template-rows:0fr;transition:grid-template-rows 0.68s cubic-bezier(0.16,1,0.3,1),margin-top 0.68s cubic-bezier(0.16,1,0.3,1),padding-top 0.68s cubic-bezier(0.16,1,0.3,1);overflow:hidden;margin-top:0;padding-top:0;border-top:1px solid transparent}.service-expanded-inner{min-height:0;overflow:hidden}.service-card.is-expanded{grid-column:1 / -1;background:#ffffff;border:1.5px solid var(--primary);box-shadow:var(--shadow-lg);cursor:default}.service-card.is-expanded .service-expanded-body{grid-template-rows:1fr;margin-top:22px;padding-top:22px;border-top-color:var(--border-light)}.service-card.is-expanded .card-expand-prompt{display:none}.service-expanded-inner .boss-win-box{opacity:0;transform:translateY(16px);transition:opacity 0.5s cubic-bezier(0.16,1,0.3,1) 0.22s,transform 0.5s cubic-bezier(0.16,1,0.3,1) 0.22s}.service-expanded-inner .staff-win-box{opacity:0;transform:translateY(16px);transition:opacity 0.5s cubic-bezier(0.16,1,0.3,1) 0.38s,transform 0.5s cubic-bezier(0.16,1,0.3,1) 0.38s}.service-expanded-inner .scenarios-panel,.service-expanded-inner .security-guarantee-strip,.service-expanded-inner .card-cta-bar{opacity:0;transform:translateY(14px);transition:opacity 0.5s cubic-bezier(0.16,1,0.3,1) 0.52s,transform 0.5s cubic-bezier(0.16,1,0.3,1) 0.52s}.service-card.is-expanded .service-expanded-inner .boss-win-box,.service-card.is-expanded .service-expanded-inner .staff-win-box,.service-card.is-expanded .service-expanded-inner .scenarios-panel,.service-card.is-expanded .service-expanded-inner .security-guarantee-strip,.service-card.is-expanded .service-expanded-inner .card-cta-bar{opacity:1;transform:translateY(0)}.expanded-grid-inner{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-bottom:20px}.ai-matrix-expanded{width:100%}.ai-matrix-header{text-align:center;max-width:680px;margin:0 auto 30px}.matrix-badge{display:inline-block;font-size:0.72rem;font-weight:700;text-transform:uppercase;letter-spacing:0.08em;color:var(--accent-blue);background:var(--accent-blue-subtle);padding:4px 10px;border-radius:var(--radius-full);margin-bottom:8px}.matrix-title{font-size:1.55rem;font-weight:800;color:var(--text-main);letter-spacing:-0.02em;margin-bottom:8px}.matrix-desc{font-size:0.88rem;color:var(--text-muted);margin-bottom:22px}.ai-capsule-tabs{display:inline-flex;align-items:center;gap:8px;background-color:#f4f4f5;border:1px solid #e4e4e7;border-radius:9999px;padding:5px;box-shadow:inset 0 1px 2px rgba(0,0,0,0.03)}.ai-tab-btn{border:none;background:transparent;padding:8px 18px;border-radius:9999px;font-size:0.85rem;font-weight:600;color:var(--text-secondary);cursor:pointer;transition:all 0.22s ease}.ai-tab-btn:hover{color:var(--text-main)}.ai-tab-btn.active{background-color:#18181b;color:#ffffff;box-shadow:0 2px 8px rgba(0,0,0,0.15)}.ai-panes-container{margin-bottom:24px}.ai-tab-pane{display:none}.ai-tab-pane.active{display:block;animation:fadeInPane 0.35s cubic-bezier(0.16,1,0.3,1)}@keyframes fadeInPane{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.ai-pane-grid{display:grid;grid-template-columns:1fr 1.15fr;gap:36px;align-items:start}.ai-pane-left{display:flex;flex-direction:column;gap:16px}.ai-scenarios-wrapper{display:flex;flex-direction:column;gap:14px}.ai-scenario-card{background-color:#fafafa;border:1px solid #f4f4f5;border-radius:12px;padding:16px 18px;transition:all 0.25s ease}.ai-scenario-card:hover{background-color:#ffffff;border-color:#e4e4e7;transform:translateX(4px);box-shadow:var(--shadow-sm)}.sc-header{display:flex;align-items:center;gap:8px;margin-bottom:6px}.sc-icon{font-size:1.15rem}.sc-title{font-size:0.98rem;font-weight:700;color:var(--text-main);margin:0}.sc-desc{font-size:0.84rem;color:var(--text-secondary);line-height:1.55;margin:0}.ai-left-actions{display:flex;align-items:center;gap:14px;margin-top:8px}.ai-left-actions .cta-primary-btn{background-color:#18181b;color:#ffffff;border:1px solid #18181b;border-radius:9999px;padding:10px 20px;font-size:0.86rem;font-weight:600;cursor:pointer;transition:all 0.2s ease}.ai-left-actions .cta-primary-btn:hover{background-color:#27272a;transform:translateY(-1px);box-shadow:0 4px 12px rgba(0,0,0,0.12)}.ai-hint-note{font-size:0.76rem;color:var(--text-muted);margin-top:4px}.ai-pane-right{display:flex;flex-direction:column}.preview-window{background-color:#ffffff;border:1px solid #e4e4e7;border-radius:16px;box-shadow:0 8px 24px rgba(0,0,0,0.06);overflow:hidden}.window-header{display:flex;align-items:center;justify-content:space-between;padding:12px 18px;background-color:#fafafa;border-bottom:1px solid #f4f4f5}.window-dots{display:flex;gap:6px}.window-dots .dot{width:10px;height:10px;border-radius:50%}.dot.red{background-color:#ef4444}.dot.yellow{background-color:#f59e0b}.dot.green{background-color:#10b981}.window-title{font-size:0.8rem;font-weight:700;color:var(--text-main)}.window-badge{font-size:0.68rem;font-weight:600;color:var(--accent-green);background-color:#ecfdf5;padding:2px 8px;border-radius:4px}.window-body{padding:20px;background-color:#fcfcfc}.dialogs-stream{display:flex;flex-direction:column;gap:14px;margin-bottom:18px}.preview-bubble{padding:12px 16px;border-radius:12px;font-size:0.84rem;line-height:1.55;max-width:95%}.preview-bubble.client{align-self:flex-start;background-color:#f4f4f5;border:1px solid #e4e4e7;color:var(--text-main)}.preview-bubble.ai{align-self:flex-end;background-color:#f0fdf4;border:1px solid #bbf7d0;color:#166534}.bubble-sender{display:block;font-size:0.72rem;font-weight:700;color:var(--text-muted);margin-bottom:4px}.preview-bubble.ai .bubble-sender{color:#15803d}.bubble-content{font-family:inherit}.preview-stats-bar{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;padding-top:14px;border-top:1px dashed #e4e4e7}.preview-stat-col{text-align:center;background:#ffffff;padding:8px;border-radius:8px;border:1px solid #f4f4f5}.stat-val{display:block;font-size:1.05rem;font-weight:800;color:var(--text-main);letter-spacing:-0.02em}.stat-lbl{font-size:0.7rem;color:var(--text-muted)}.contact-modal-overlay{position:fixed;inset:0;z-index:9999;background-color:rgba(15,23,42,0.6);backdrop-filter:blur(6px);display:flex;align-items:center;justify-content:center;padding:20px;opacity:0;pointer-events:none;transition:opacity 0.25s cubic-bezier(0.16,1,0.3,1)}.contact-modal-overlay.active{opacity:1;pointer-events:auto}.contact-modal-dialog{background-color:#ffffff;border:1px solid var(--border-light);border-radius:20px;padding:28px;max-width:480px;width:100%;position:relative;box-shadow:0 20px 45px rgba(0,0,0,0.2);transform:scale(0.95);transition:transform 0.25s cubic-bezier(0.16,1,0.3,1)}.contact-modal-overlay.active .contact-modal-dialog{transform:scale(1)}.modal-close-btn{position:absolute;top:16px;right:16px;width:32px;height:32px;border-radius:50%;border:1px solid #e4e4e7;background-color:#f4f4f5;color:var(--text-secondary);font-size:0.95rem;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all 0.2s ease}.modal-close-btn:hover{background-color:#18181b;color:#ffffff}.modal-header{margin-bottom:20px}.modal-badge{display:inline-block;font-size:0.72rem;font-weight:700;color:var(--accent-green);background-color:#ecfdf5;padding:3px 8px;border-radius:4px;margin-bottom:6px}.modal-title{font-size:1.25rem;font-weight:800;color:var(--text-main);margin-bottom:6px}.modal-desc{font-size:0.84rem;color:var(--text-muted);line-height:1.5;margin:0}.modal-wechat-box{display:flex;align-items:center;gap:20px;background-color:#fafafa;border:1px solid #f4f4f5;border-radius:14px;padding:18px;margin-bottom:16px}.wechat-qr-wrapper{display:flex;flex-direction:column;align-items:center;gap:6px;flex-shrink:0}.qr-sub{font-size:0.68rem;color:var(--text-muted)}.wechat-info-wrapper{display:flex;flex-direction:column;gap:6px}.wechat-label{font-size:0.75rem;color:var(--text-muted)}.wechat-id-row{display:flex;align-items:center;gap:8px}.wechat-id-code{font-size:0.95rem;font-weight:700;color:var(--text-main);background-color:#ffffff;border:1px solid #e4e4e7;padding:4px 8px;border-radius:6px}.btn-copy-modal{padding:6px 12px;font-size:0.78rem}.wechat-note{font-size:0.72rem;color:var(--accent-amber)}.modal-footer{text-align:center;font-size:0.75rem;color:var(--text-muted);border-top:1px dashed #e4e4e7;padding-top:12px}.win-box{background-color:var(--bg-subtle);border:1px solid var(--border-light);border-radius:var(--radius-md);padding:18px}.win-box-header{font-size:0.9rem;font-weight:700;margin-bottom:10px;display:flex;align-items:center;gap:8px}.win-box-header.boss{color:var(--accent-green)}.win-box-header.staff{color:var(--accent-blue)}.win-list{list-style:none}.win-list li{font-size:0.85rem;color:var(--text-secondary);line-height:1.6;margin-bottom:8px;padding-left:18px;position:relative}.win-list li::before{content:"✔";position:absolute;left:0;color:var(--accent-green);font-weight:bold}.scenarios-panel{background-color:var(--bg-subtle);border:1px solid var(--border-light);border-radius:var(--radius-sm);padding:14px 18px;margin-bottom:14px}.scenarios-title{font-size:0.84rem;font-weight:700;color:var(--text-main);margin-bottom:8px}.scenarios-tags-wrap{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:8px}.scenario-pill{font-size:0.78rem;font-weight:600;background-color:#ffffff;border:1px solid var(--border-light);color:var(--accent-blue);padding:3px 10px;border-radius:4px}.case-proof-strip{font-size:0.78rem;color:#047857;background-color:rgba(5,150,105,0.08);padding:6px 10px;border-radius:4px;border-left:3px solid var(--accent-green)}.security-guarantee-strip{background:#ffffff;border:1px dashed #cbd5e1;border-radius:var(--radius-sm);padding:10px 14px;font-size:0.8rem;color:#334155;line-height:1.5;margin-bottom:20px;display:flex;align-items:center}.card-cta-bar{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;padding-top:14px;border-top:1px solid var(--border-subtle)}.cta-actions-group{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.cta-primary-btn{background-color:var(--primary);color:#ffffff}.cta-primary-btn:hover{background-color:var(--primary-hover)}.cta-secondary-btn{background-color:var(--bg-surface);color:var(--text-main);border-color:var(--border-light)}.btn-close-card{background:none;border:1px solid var(--border-light);padding:6px 12px;border-radius:6px;font-family:inherit;font-size:0.8rem;font-weight:600;cursor:pointer;color:var(--text-secondary);transition:var(--transition)}.btn-close-card:hover{background-color:var(--bg-muted);color:var(--text-main)}.showcase-workbench{background-color:var(--bg-surface);border:1px solid var(--border-light);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);overflow:hidden}.workbench-nav-bar{display:flex;background-color:var(--bg-muted);border-bottom:1px solid var(--border-light);padding:8px 12px;gap:8px;overflow-x:auto;-webkit-overflow-scrolling:touch}.wb-tab-btn{display:inline-flex;align-items:center;gap:8px;background:transparent;border:none;padding:10px 16px;border-radius:var(--radius-sm);font-family:inherit;font-size:0.88rem;font-weight:600;color:var(--text-secondary);cursor:pointer;transition:var(--transition);white-space:nowrap}.wb-tab-btn:hover{background-color:rgba(255,255,255,0.6);color:var(--text-main)}.wb-tab-btn.active{background-color:#ffffff;color:var(--primary);box-shadow:var(--shadow-sm)}.wb-badge-live{font-size:0.68rem;background-color:var(--accent-green-subtle);color:var(--accent-green);border:1px solid rgba(5,150,105,0.2);padding:2px 6px;border-radius:4px;font-weight:700}.wb-badge-demo{font-size:0.68rem;background-color:var(--accent-blue-subtle);color:var(--accent-blue);border:1px solid rgba(37,99,235,0.2);padding:2px 6px;border-radius:4px;font-weight:700}.wb-view-pane{display:none;padding:32px;min-height:520px;box-sizing:border-box}.wb-view-pane.active{display:block;animation:fadeIn 0.25s ease-out}@keyframes fadeIn{from{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}.miniapp-layout{display:grid;grid-template-columns:1.25fr 0.75fr;gap:36px;align-items:center}.miniapp-badge{display:inline-block;font-size:0.76rem;font-weight:700;color:var(--accent-green);background:var(--accent-green-subtle);border:1px solid rgba(5,150,105,0.2);padding:3px 10px;border-radius:var(--radius-full);margin-bottom:10px}.miniapp-title{font-size:1.55rem;font-weight:700;margin-bottom:10px}.miniapp-desc{font-size:0.92rem;color:var(--text-secondary);line-height:1.65;margin-bottom:20px}.miniapp-highlights{display:flex;flex-direction:column;gap:10px;margin-bottom:20px}.mh-card{background-color:var(--bg-muted);padding:10px 14px;border-radius:var(--radius-sm);border-left:3px solid var(--primary)}.mh-card strong{display:block;font-size:0.88rem;color:var(--text-main);margin-bottom:2px}.mh-card span{font-size:0.82rem;color:var(--text-secondary)}.qr-panel{display:flex;flex-direction:column;align-items:center;justify-content:center;background-color:var(--bg-subtle);border:1px dashed var(--border-light);border-radius:var(--radius-md);padding:24px}.qr-box-lg{width:160px;height:160px;background-color:#fff;border:1px solid var(--border-light);border-radius:12px;display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-sm);margin-bottom:8px;padding:8px;box-sizing:border-box}.miniapp-qr-img{width:100%;height:100%;object-fit:contain;border-radius:6px;display:block}.qr-brand-meta{display:flex;flex-direction:column;align-items:center;gap:4px;margin-top:4px;text-align:center}.qr-brand-title{font-size:0.92rem;font-weight:700;color:var(--text-main)}.qr-info-label{font-size:0.82rem;font-weight:600;color:var(--text-secondary)}.kb-security-footer{margin-top:auto;font-size:0.75rem;color:var(--text-muted);background:var(--bg-muted);padding:8px 12px;border-radius:6px;border:1px solid var(--border-light)}.quiz-score-board{background:var(--bg-subtle);border:1px solid var(--border-light);border-radius:12px;padding:20px;height:fit-content}.score-stat-card{background:var(--bg-surface);border:1px solid var(--border-light);border-radius:8px;padding:10px;flex:1;text-align:center}.score-num{font-size:1.6rem;font-weight:800;color:var(--text-main)}.score-num.text-success{color:var(--accent-green)}.score-label{font-size:0.72rem;color:var(--text-muted)}.score-board-tip{font-size:0.78rem;color:var(--text-muted);line-height:1.5}.role-bar-unified{display:flex;align-items:center;justify-content:space-between;background-color:var(--bg-muted);padding:8px 14px;border-radius:var(--radius-sm);margin-bottom:18px}.role-bar-unified .role-tabs{display:flex;gap:8px}.role-tab-btn{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border:1px solid var(--border-light);border-radius:6px;background-color:#fff;font-family:inherit;font-size:0.82rem;font-weight:600;cursor:pointer;transition:var(--transition)}.role-tab-btn.active{background-color:var(--primary);color:#fff;border-color:var(--primary)}.kb-layout-grid{display:grid;grid-template-columns:1fr 1.3fr;gap:20px;min-height:360px}.kb-questions-col{display:flex;flex-direction:column;gap:8px;border-right:1px solid var(--border-subtle);padding-right:18px}.col-header{font-size:0.8rem;font-weight:700;color:var(--text-secondary);text-transform:uppercase;margin-bottom:2px}.kb-q-list{display:flex;flex-direction:column;gap:8px;max-height:300px;overflow-y:auto;padding-right:4px}.kb-q-btn{text-align:left;background-color:var(--bg-subtle);border:1px solid var(--border-light);border-radius:var(--radius-sm);padding:10px 12px;font-family:inherit;font-size:0.86rem;color:var(--text-main);cursor:pointer;transition:var(--transition);display:flex;align-items:flex-start;gap:8px}.kb-q-btn:hover{background-color:#fff;border-color:var(--accent-blue)}.kb-q-btn.selected{background-color:var(--accent-blue-subtle);border-color:var(--accent-blue);font-weight:600}.q-badge{font-size:0.7rem;font-weight:700;background:#e4e4e7;padding:2px 5px;border-radius:3px;flex-shrink:0}.kb-display-box{background-color:var(--bg-subtle);border:1px solid var(--border-light);border-radius:var(--radius-sm);padding:18px;display:flex;flex-direction:column;justify-content:center}.kb-answer-card{background-color:#fff;border:1px solid var(--border-light);border-radius:var(--radius-sm);padding:18px;box-shadow:var(--shadow-sm)}.kb-ans-q{font-size:1rem;font-weight:700;margin-bottom:10px;padding-bottom:8px;border-bottom:1px solid var(--border-subtle)}.kb-ans-a{font-size:0.92rem;line-height:1.7;color:var(--text-main);margin-bottom:14px}.kb-ans-meta{display:flex;align-items:center;justify-content:space-between;background-color:var(--bg-subtle);padding:8px 12px;border-radius:6px;font-size:0.8rem}.kb-source-tag{display:inline-flex;align-items:center;gap:4px;background-color:var(--accent-blue-subtle);color:var(--accent-blue);font-weight:600;padding:2px 8px;border-radius:4px}.training-subtabs{display:flex;gap:10px;margin-bottom:18px}.t-subtab-btn{padding:8px 14px;border:1px solid var(--border-light);background-color:var(--bg-subtle);border-radius:var(--radius-sm);font-family:inherit;font-size:0.85rem;font-weight:600;cursor:pointer;transition:var(--transition)}.t-subtab-btn.active{background-color:var(--primary);color:#fff;border-color:var(--primary)}.quiz-view-wrap{display:grid;grid-template-columns:1.35fr 0.65fr;gap:20px;align-items:stretch}.quiz-slider-card{background-color:#fff;border:1px solid var(--border-light);border-radius:var(--radius-md);padding:24px;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;min-height:420px;transition:all 0.25s ease}.quiz-slider-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}.quiz-step-info{display:flex;align-items:center;gap:8px}.quiz-rule-tag{font-size:0.72rem;font-weight:700;color:var(--text-muted);background-color:#f4f4f5;padding:2px 6px;border-radius:4px}.quiz-progress-dots{display:flex;align-items:center;gap:6px}.quiz-dot-btn{width:12px;height:12px;border-radius:50%;background-color:#e4e4e7;border:none;cursor:pointer;padding:0;transition:all 0.2s ease}.quiz-dot-btn:hover{transform:scale(1.3);background-color:#a1a1aa}.quiz-dot-btn.active{background-color:#18181b;transform:scale(1.3)}.quiz-dot-btn.correct{background-color:#10b981}.quiz-dot-btn.wrong{background-color:#ef4444}.quiz-question-title{font-size:1.05rem;font-weight:700;color:var(--text-main);line-height:1.5;margin-bottom:14px}.quiz-pager-controls{margin-top:auto;display:flex;align-items:center;justify-content:space-between;padding-top:16px;border-top:1px dashed #e4e4e7}.quiz-pager-status{font-size:0.78rem;color:var(--text-muted)}.quiz-item-card{background-color:#fff;border:1px solid var(--border-light);border-radius:var(--radius-sm);padding:18px;margin-bottom:14px}.quiz-options-group{display:flex;flex-direction:column;gap:8px;margin:10px 0}.quiz-opt-btn{text-align:left;background-color:var(--bg-subtle);border:1px solid var(--border-light);border-radius:6px;padding:10px 12px;font-family:inherit;font-size:0.86rem;cursor:pointer;transition:var(--transition)}.quiz-opt-btn:hover{background-color:#fff;border-color:#a1a1aa}.quiz-opt-btn.correct{background-color:var(--accent-green-subtle);border-color:var(--accent-green);color:#065f46;font-weight:600}.quiz-opt-btn.wrong{background-color:var(--accent-red-subtle);border-color:var(--accent-red);color:#991b1b}.quiz-exp-box{display:none;background-color:var(--bg-subtle);padding:10px 12px;border-radius:6px;border-left:3px solid var(--accent-blue);font-size:0.8rem;line-height:1.6}.quiz-exp-box.show{display:block}.scenario-card-full{background-color:#fff;border:1px solid var(--border-light);border-radius:var(--radius-md);padding:24px;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;min-height:420px;box-sizing:border-box}.scenario-story-strip{background-color:var(--accent-blue-subtle);border:1px solid rgba(37,99,235,0.2);padding:10px 14px;border-radius:8px;font-size:0.84rem;color:var(--accent-blue);line-height:1.5;margin-bottom:16px}.scenario-step-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}.step-header-info{display:flex;align-items:center;gap:8px}.step-sub-name{font-size:0.85rem;font-weight:700;color:var(--text-main)}.scenario-stepper-dots{display:flex;align-items:center;gap:6px}.step-nav-btn{font-family:inherit;font-size:0.72rem;font-weight:600;padding:4px 10px;border-radius:9999px;background-color:#f4f4f5;color:var(--text-muted);border:1px solid #e4e4e7;cursor:pointer;transition:all 0.2s ease}.step-nav-btn:hover{background-color:#e4e4e7;color:var(--text-main);transform:translateY(-1px)}.step-nav-btn.active{background-color:#18181b;color:#fff;border-color:#18181b;box-shadow:0 2px 6px rgba(0,0,0,0.12)}.step-nav-btn.done{background-color:#ecfdf5;color:#059669;border-color:#a7f3d0}.step-nav-btn.done.active{background-color:#059669;color:#fff;border-color:#059669}.scenario-question-title{font-size:1.05rem;font-weight:700;color:var(--text-main);line-height:1.5;margin-bottom:14px}.scenario-pager-controls{margin-top:auto;display:flex;align-items:center;justify-content:space-between;padding-top:16px;border-top:1px dashed #e4e4e7}.btn-scenario-next{background-color:#059669;border-color:#059669;color:#fff;border-radius:9999px;padding:8px 18px;font-size:0.84rem;font-weight:600;cursor:pointer;transition:all 0.2s ease}.btn-scenario-next:hover{background-color:#047857;transform:translateY(-1px)}.btn-scenario-reset{background-color:#18181b;border-color:#18181b;color:#fff;border-radius:9999px;padding:8px 18px;font-size:0.84rem;font-weight:600;cursor:pointer}.external-kb-callout{background:linear-gradient(135deg,#f8fafc 0%,#eff6ff 100%);border:1px solid #bfdbfe;border-radius:var(--radius-md);padding:18px 22px;margin-top:24px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}.callout-info h4{font-size:0.95rem;font-weight:700;color:#1e3a8a;margin-bottom:4px}.callout-info p{font-size:0.82rem;color:#3b82f6}.callout-action{display:flex;align-items:center;gap:10px}.return-badge-hint{font-size:0.75rem;color:#64748b;background:rgba(255,255,255,0.8);padding:4px 8px;border-radius:4px;border:1px solid #e2e8f0}.process-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.step-card{background-color:var(--bg-surface);border:1px solid var(--border-light);border-radius:var(--radius-md);padding:28px 22px;position:relative;transition:var(--transition)}.step-card:hover{transform:translateY(-3px);border-color:#a1a1aa;box-shadow:var(--shadow-md)}.step-num{font-size:2.2rem;font-weight:800;color:#e4e4e7;line-height:1;margin-bottom:14px;font-family:var(--font-sans)}.step-title{font-size:1.08rem;font-weight:700;margin-bottom:8px;color:var(--text-main)}.step-desc{font-size:0.86rem;color:var(--text-secondary);line-height:1.6}.faq-list{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:14px}.faq-item{background-color:var(--bg-surface);border:1px solid var(--border-light);border-radius:var(--radius-md);overflow:hidden;transition:var(--transition)}.faq-question{width:100%;text-align:left;background:none;border:none;padding:18px 22px;font-family:inherit;font-size:1rem;font-weight:600;color:var(--text-main);cursor:pointer;display:flex;align-items:center;justify-content:space-between}.faq-icon{color:var(--text-muted);transition:transform 0.25s ease;flex-shrink:0}.faq-item.active .faq-icon{transform:rotate(180deg)}.faq-answer{max-height:0;overflow:hidden;transition:max-height 0.3s cubic-bezier(0,1,0,1);padding:0 22px}.faq-item.active .faq-answer{max-height:500px;padding-bottom:20px;transition:max-height 0.3s ease-in-out}.faq-answer p{font-size:0.92rem;color:var(--text-secondary);line-height:1.65}.contact-card{background:var(--contact-card-bg);border:var(--contact-card-border);box-shadow:var(--contact-card-shadow);color:#fff;border-radius:var(--radius-lg);padding:50px 40px;transition:background 0.3s ease,border-color 0.3s ease,box-shadow 0.3s ease}.contact-header{text-align:center;max-width:600px;margin:0 auto 40px}.contact-title{font-size:2rem;font-weight:700;margin-bottom:12px;color:#fff}.contact-desc{font-size:0.95rem;color:#a1a1aa;line-height:1.6}.contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-bottom:40px}.contact-item{background:var(--contact-item-bg);border:var(--contact-item-border);border-radius:var(--radius-md);padding:24px 20px;display:flex;flex-direction:column;transition:all 0.25s ease}.contact-item:hover{transform:translateY(-2px);background:rgba(255,255,255,0.08);border-color:rgba(255,255,255,0.2)}.contact-icon{font-size:1.6rem;margin-bottom:12px}.contact-detail h4{font-size:1.05rem;font-weight:700;margin-bottom:6px;color:#fff}.contact-detail p{font-size:0.82rem;color:#a1a1aa;margin-bottom:14px}.wechat-action-box{display:flex;align-items:center;justify-content:space-between;background:rgba(0,0,0,0.3);padding:8px 12px;border-radius:6px;margin-bottom:12px}.wechat-id-text{font-size:0.82rem;font-weight:600;color:#fff}.wechat-action-box .btn,#copy-wechat-btn{background-color:#ffffff !important;color:#09090b !important;border:1px solid #ffffff !important;font-weight:700 !important;padding:4px 10px !important;border-radius:4px !important;cursor:pointer;transition:all 0.2s ease !important}.wechat-action-box .btn:hover,#copy-wechat-btn:hover{background-color:#f4f4f5 !important;color:#000000 !important;transform:translateY(-1px)}.qr-container-box{display:flex;flex-direction:column;align-items:center;gap:8px;padding:12px;background:rgba(255,255,255,0.04);border:1px dashed rgba(255,255,255,0.2);border-radius:10px;margin-top:4px}.qr-actionable-img{width:130px;height:130px;object-fit:contain;border-radius:8px;background-color:#ffffff;padding:6px;box-sizing:border-box;display:block;-webkit-touch-callout:default !important;user-select:auto !important;-webkit-user-select:auto !important;pointer-events:auto !important;cursor:pointer;transition:transform 0.2s ease,box-shadow 0.2s ease}.qr-actionable-img:hover{transform:scale(1.04);box-shadow:0 6px 16px rgba(0,0,0,0.3)}.qr-interactive-tip{font-size:0.72rem;color:#a1a1aa;text-align:center}.modal-qr-container{width:130px;height:130px;border-radius:8px;background:#ffffff;border:1px solid #e4e4e7;padding:6px;box-sizing:border-box;display:flex;align-items:center;justify-content:center}.modal-qr-container .qr-actionable-img{width:100%;height:100%;padding:0}.phone-link{display:flex;align-items:center;justify-content:space-between;background:#ffffff;color:#09090b;text-decoration:none;padding:10px 14px;border-radius:6px;font-weight:600;font-size:0.86rem;transition:var(--transition)}.phone-link:hover{background:#f4f4f5}.phone-call-btn{background:var(--accent-green);color:#fff;font-size:0.72rem;padding:2px 8px;border-radius:4px}.phone-tip{font-size:0.72rem;color:#71717a;margin-top:6px;display:block}.contact-footer-note{text-align:center;font-size:0.78rem;color:#71717a;border-top:1px solid rgba(255,255,255,0.08);padding-top:20px}.back-to-top-btn{position:fixed;bottom:24px;right:24px;width:40px;height:40px;background-color:#ffffff;border:1px solid var(--border-light);border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-md);cursor:pointer;z-index:90;opacity:0;visibility:hidden;transition:var(--transition);color:var(--primary)}.back-to-top-btn.visible{opacity:1;visibility:visible}.back-to-top-btn:hover{background-color:var(--bg-muted);transform:translateY(-2px)}.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%) translateY(100px);background-color:#18181b;color:#ffffff;padding:10px 20px;border-radius:var(--radius-full);font-size:0.85rem;font-weight:600;box-shadow:var(--shadow-lg);opacity:0;transition:all 0.3s cubic-bezier(0.16,1,0.3,1);z-index:3000;border:1px solid #3f3f46}.toast.show{transform:translateX(-50%) translateY(0);opacity:1}@media (max-width:992px){.hero-title{font-size:2.2rem}.services-grid{grid-template-columns:1fr}.ai-pane-grid{grid-template-columns:1fr;gap:24px}.ai-capsule-tabs{max-width:100%;overflow-x:auto;white-space:nowrap;justify-content:flex-start;-webkit-overflow-scrolling:touch;padding-bottom:8px}.expanded-grid-inner{grid-template-columns:1fr}.miniapp-layout{grid-template-columns:1fr}.kb-layout-grid{grid-template-columns:1fr}.kb-questions-col{border-right:none;border-bottom:1px solid var(--border-subtle);padding-right:0;padding-bottom:18px}.quiz-view-wrap{grid-template-columns:1fr}.process-steps{grid-template-columns:repeat(2,1fr)}.contact-grid{grid-template-columns:1fr}}@media (max-width:640px){.container{padding:0 14px}.section{padding:48px 0}.header-inner{height:56px}.main-nav{display:none}.header-action{display:none}.header-mobile-action{display:flex;align-items:center;gap:8px}.header-mobile-action .btn-mobile-contact{display:inline-flex;align-items:center;gap:4px;background-color:var(--primary);color:var(--primary-text);padding:6px 12px;border-radius:var(--radius-full);font-size:0.78rem;font-weight:600;text-decoration:none;box-shadow:var(--shadow-sm)}.hero-section{padding:40px 0 30px}.hero-title{font-size:1.8rem;line-height:1.3;margin-bottom:14px}.hero-desc{font-size:0.95rem;line-height:1.6;margin-bottom:24px}.hero-actions{flex-direction:column;gap:10px}.hero-actions .btn{width:100%}.hero-pain-strip{flex-direction:column;align-items:flex-start;padding:12px 14px;gap:8px}.service-card{padding:18px 16px;border-radius:14px}.service-title{font-size:1.1rem}.service-desc{font-size:0.86rem;margin-bottom:10px}.card-pain-hook{font-size:0.8rem;padding:8px 10px}.win-box{padding:14px}.win-box-header{font-size:0.86rem}.win-list li{font-size:0.82rem}.scenarios-panel{padding:12px 14px}.card-cta-bar{flex-direction:column;align-items:stretch}.cta-actions-group{flex-direction:column;width:100%}.cta-actions-group .btn{width:100%}.btn-close-card{width:100%;text-align:center}.showcase-workbench{border-radius:14px}.wb-view-pane{padding:18px 14px;min-height:auto}.quiz-slider-card{padding:16px 14px;min-height:auto}.wb-tab-btn{padding:8px 12px;font-size:0.8rem}.miniapp-title{font-size:1.3rem}.miniapp-desc{font-size:0.88rem}.role-bar-unified{flex-direction:column;align-items:flex-start;gap:8px;padding:10px 12px}.role-bar-unified .role-tabs{width:100%}.role-tab-btn{flex:1;justify-content:center;font-size:0.78rem}.process-steps{grid-template-columns:1fr}.contact-card{padding:32px 18px;border-radius:16px}.contact-title{font-size:1.6rem}.contact-modal-dialog{padding:22px 16px;border-radius:16px}.modal-title{font-size:1.15rem}.modal-wechat-box{flex-direction:column;text-align:center;gap:14px;padding:14px}.wechat-id-row{justify-content:center}}.workbench-container,.services-section,.bento-grid{-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none}.contact-card,.contact-modal-dialog,.wechat-action-box,.wechat-info-wrapper,.phone-link,.qr-actionable-img,.secure-contact-val,.secure-phone-text,.secure-wechat-code,button,a,input,textarea{-webkit-user-select:text !important;-moz-user-select:text !important;user-select:text !important;-webkit-touch-callout:default !important}[data-theme="dark"] .btn-primary{background-color:var(--primary) !important;color:var(--primary-text) !important;border:1px solid #ffffff !important;box-shadow:0 2px 10px rgba(255,255,255,0.15) !important}[data-theme="dark"] .btn-primary:hover{background-color:var(--primary-hover) !important;color:#000000 !important;box-shadow:0 4px 18px rgba(255,255,255,0.28) !important;transform:translateY(-1px)}[data-theme="dark"] .ai-left-actions .cta-primary-btn{background-color:var(--primary) !important;color:var(--primary-text) !important;border-color:#ffffff !important}[data-theme="dark"] .ai-left-actions .cta-primary-btn:hover{background-color:#ffffff !important;color:#000000 !important;box-shadow:0 4px 14px rgba(255,255,255,0.25) !important}[data-theme="dark"] .ai-tab-btn.active,[data-theme="dark"] .wb-tab-btn.active,[data-theme="dark"] .role-tab-btn.active,[data-theme="dark"] .t-subtab-btn.active,[data-theme="dark"] .step-nav-btn.active{background-color:var(--active-tab-bg) !important;color:var(--active-tab-text) !important;border:1px solid rgba(255,255,255,0.24) !important;box-shadow:0 2px 10px rgba(0,0,0,0.45) !important}[data-theme="dark"] .wb-tab-btn{color:var(--text-secondary)}[data-theme="dark"] .wb-tab-btn:hover{background-color:rgba(255,255,255,0.06);color:var(--text-main)}[data-theme="dark"] .btn-scenario-reset{background-color:var(--active-tab-bg) !important;border-color:rgba(255,255,255,0.2) !important;color:#ffffff !important}[data-theme="dark"] .contact-card{background:var(--contact-card-bg) !important;border:var(--contact-card-border) !important;box-shadow:var(--contact-card-shadow) !important}[data-theme="dark"] .contact-item{background:var(--contact-item-bg) !important;border:var(--contact-item-border) !important}[data-theme="dark"] .contact-item:hover{background:rgba(255,255,255,0.08) !important;border-color:rgba(255,255,255,0.22) !important}[data-theme="dark"] .contact-modal-overlay{background-color:rgba(0,0,0,0.82) !important}[data-theme="dark"] .contact-modal-dialog{background-color:var(--bg-surface) !important;border:1px solid rgba(255,255,255,0.14) !important;box-shadow:0 20px 60px rgba(0,0,0,0.85) !important}[data-theme="dark"] .modal-header{border-bottom-color:var(--border-subtle) !important}[data-theme="dark"] .modal-footer{background-color:var(--bg-muted) !important;color:var(--text-muted) !important}[data-theme="dark"] .modal-close-btn{background-color:var(--bg-muted) !important;color:var(--text-secondary) !important;border:1px solid var(--border-light) !important}[data-theme="dark"] .modal-close-btn:hover{background-color:#27272a !important;color:#ffffff !important}[data-theme="dark"] .wechat-id-code{background-color:var(--bg-muted) !important;border:1px solid var(--border-light) !important;color:var(--text-main) !important}[data-theme="dark"] .toast{background-color:#1a1e27 !important;border:1px solid rgba(255,255,255,0.18) !important;color:#ffffff !important;box-shadow:0 8px 24px rgba(0,0,0,0.6) !important}[data-theme="dark"] .card-feature-item{background-color:var(--bg-card-feature) !important;border:1px solid var(--bg-card-feature-border) !important}[data-theme="dark"] .card-feature-item:hover{background-color:var(--bg-card-feature-hover) !important}[data-theme="dark"] .ai-scenario-card{background-color:var(--bg-card-feature) !important;border:1px solid var(--bg-card-feature-border) !important}[data-theme="dark"] .ai-scenario-card:hover{background-color:var(--bg-card-feature-hover) !important;border-color:rgba(255,255,255,0.16) !important}[data-theme="dark"] .preview-window{background-color:var(--window-bg) !important;border:1px solid var(--border-light) !important;box-shadow:0 8px 30px rgba(0,0,0,0.5) !important}[data-theme="dark"] .window-header{background-color:var(--window-header-bg) !important;border-bottom:1px solid var(--border-subtle) !important}[data-theme="dark"] .window-body{background-color:var(--window-body-bg) !important}[data-theme="dark"] .preview-bubble.client{background-color:var(--bubble-client-bg) !important;border:1px solid rgba(255,255,255,0.08) !important;color:var(--text-main) !important}[data-theme="dark"] .preview-bubble.ai{background-color:var(--bubble-ai-bg) !important;border:1px solid rgba(59,130,246,0.28) !important}[data-theme="dark"] .stat-pill{background-color:var(--bg-surface) !important;border:1px solid var(--border-light) !important}[data-theme="dark"] .ai-scenarios-panel{background-color:var(--bg-subtle) !important;border:1px solid var(--border-light) !important}[data-theme="dark"] .showcase-workbench{background-color:var(--bg-surface) !important;border:1px solid var(--border-light) !important}[data-theme="dark"] .mh-card{background-color:var(--bg-card-feature) !important;border-color:var(--bg-card-feature-border) !important;border-left:3px solid var(--accent-green) !important}[data-theme="dark"] .qr-panel{background-color:var(--bg-subtle) !important;border:1px dashed var(--border-light) !important}[data-theme="dark"] .role-bar-unified{background-color:var(--bg-muted) !important}[data-theme="dark"] .role-tab-btn{background-color:var(--bg-surface) !important;border-color:var(--border-light) !important;color:var(--text-secondary) !important}[data-theme="dark"] .kb-q-item{background-color:var(--bg-surface) !important;border-color:var(--border-light) !important;color:var(--text-main) !important}[data-theme="dark"] .kb-q-item:hover{background-color:var(--bg-muted) !important}[data-theme="dark"] .kb-q-item.active{background-color:rgba(37,99,235,0.18) !important;border-color:var(--accent-blue) !important}[data-theme="dark"] .kb-display-box{background-color:var(--bg-surface) !important;border-color:var(--border-light) !important}[data-theme="dark"] .quiz-card{background-color:var(--bg-surface) !important;border-color:var(--border-light) !important}[data-theme="dark"] .quiz-option-btn{background-color:var(--bg-muted) !important;border-color:var(--border-light) !important;color:var(--text-main) !important}[data-theme="dark"] .quiz-option-btn:hover{background-color:var(--bg-card-feature-hover) !important}[data-theme="dark"] .quiz-dot-btn{background-color:#3f3f46}[data-theme="dark"] .quiz-dot-btn.active{background-color:#f4f4f5 !important}[data-theme="dark"] .scenario-step-box{background-color:var(--bg-surface) !important;border-color:var(--border-light) !important}[data-theme="dark"] .step-nav-btn{background-color:var(--bg-muted) !important;border-color:var(--border-light) !important;color:var(--text-secondary) !important}[data-theme="dark"] .step-card{background-color:var(--bg-surface) !important;border-color:var(--border-light) !important}[data-theme="dark"] .step-card:hover{border-color:rgba(255,255,255,0.2) !important}[data-theme="dark"] .step-num{color:rgba(255,255,255,0.12) !important}[data-theme="dark"] .faq-item{background-color:var(--bg-surface) !important;border-color:var(--border-light) !important}[data-theme="dark"] .external-kb-callout{background:linear-gradient(135deg,#161c28 0%,#121620 100%) !important;border-color:rgba(59,130,246,0.35) !important}[data-theme="dark"] .return-badge-hint{background-color:rgba(37,99,235,0.2) !important;color:#93c5fd !important;border:1px solid rgba(59,130,246,0.3) !important}[data-theme="dark"] .back-to-top-btn{background-color:var(--bg-surface) !important;border-color:var(--border-light) !important;color:var(--text-main) !important}[data-theme="dark"] .back-to-top-btn:hover{background-color:var(--bg-muted) !important}.qr-box-lg,.contact-item .qr-container-box,.modal-wechat-box .modal-qr-container{background-color:#ffffff !important}[data-theme="dark"] .contact-item .qr-container-box{background-color:#ffffff !important;border:1px solid rgba(255,255,255,0.25) !important}[data-theme="dark"] .qr-interactive-tip{color:#18181b !important}