@charset "UTF-8";@keyframes startChoiceFadeUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.start-choice-section{position:relative;width:100%;padding:100px 0 0;background:#f9fbff;box-sizing:border-box}.start-choice-section .hero-glow{bottom:80px}.start-choice-section .start-choice-content{display:flex;flex-direction:column;align-items:center;position:relative;width:var(--content-width);max-width:calc(100% - 160px);margin:0 auto}.start-choice-section .start-choice-badge{margin-bottom:36px;padding:16px 24px;border-radius:16px;font-size:18px;font-weight:500;background:linear-gradient(90deg,#ffe6ff,#f0f5ff);box-sizing:border-box;border:1px solid #BA8DFF;animation:startChoiceFadeUp .6s ease-out .1s both}.start-choice-section .start-choice-title{width:calc(100vw - 80px);margin-bottom:32px;font-size:54px;font-weight:500;line-height:1.3;text-align:center;animation:startChoiceFadeUp .6s ease-out .2s both}.start-choice-section .start-choice-tip{margin-bottom:24px;font-size:18px;line-height:28px;color:#888;text-align:center;animation:startChoiceFadeUp .6s ease-out .3s both}.start-choice-section .start-choice-cards{display:flex;gap:40px;width:100%;margin:0 auto;animation:startChoiceFadeUp .6s ease-out .4s both}.start-choice-section .start-choice-card{flex:1;display:flex;flex-direction:column;align-items:flex-start;padding:24px;box-sizing:border-box;border:1px solid #E5E5E5;border-radius:16px;background:#fff;box-shadow:0 24px 40px -20px #0000001f;transition:transform .3s ease}@media(hover:hover){.start-choice-section .start-choice-card:hover{transform:translateY(-3px)}}.start-choice-section .start-choice-card-guide{background:#fcf8ff;border:1px solid #BA8DFF}.start-choice-section .start-choice-card-title{margin-bottom:11px;font-size:20px;font-weight:700;color:#222}.start-choice-section .start-choice-card-desc{margin-bottom:auto;padding-bottom:24px;font-size:16px;line-height:24px;color:#888}.start-choice-section .start-choice-card-btn{display:inline-flex;align-items:center;gap:4px;padding:8px 16px;box-sizing:border-box;border-radius:8px;cursor:pointer}@media(hover:hover){.start-choice-section .start-choice-card-btn:hover{opacity:.8}}.start-choice-section .start-choice-card-trial .start-choice-card-btn{color:#6f1ced;border:1px solid #6F1CED;background-color:#fff}.start-choice-section .start-choice-card-guide .start-choice-card-btn{color:#fff;border:none;background:linear-gradient(78deg,#fe59fd,#f202b0,#5151ff 50%,#0e5bf2 74%,#1fceec 99%)}@media(max-width:1920px){.start-choice-section .start-choice-title{font-size:48px}}@media(max-width:1440px){.start-choice-section .start-choice-title{font-size:44px}}@media screen and (max-width:1023px){.start-choice-section{padding:60px 0}.start-choice-section .start-choice-content{max-width:calc(100% - 40px)}.start-choice-section .start-choice-badge{font-size:16px;line-height:24px;padding:10px 18px}.start-choice-section .start-choice-title{font-size:40px}.start-choice-section .start-choice-cards{gap:24px}.start-choice-section .start-choice-card{padding:20px}}@media screen and (max-width:767px){.start-choice-section .start-choice-cards{flex-direction:column;gap:16px}}.landing-page{width:100%;min-height:100vh;display:flex;flex-direction:column;overflow:hidden}.landing-page .quick-search-title{width:calc(100vw - 80px);max-width:none}.landing-header{width:100%;background:#fff}.landing-header .home-header-nav{margin:0 auto}.landing-header .header-user-menu .nav-user-avatar{border-radius:8px}.demo-section,.landing-cta-section,.layout-footer{position:relative;z-index:1}.alpha-program-page{width:100%;min-height:100vh;display:flex;flex-direction:column;background:#fff}.alpha-program-page .alpha-program-header{margin:0 auto;width:var(--content-width)}.alpha-hero{text-align:center;padding:80px 0;box-sizing:border-box;margin:0 auto}.alpha-hero .alpha-hero-title{font-size:48px;font-weight:700;line-height:64px;margin-bottom:5px}.alpha-hero .alpha-hero-brand{display:inline-block;background:linear-gradient(90deg,#f936de,#e00bb9 25%,#1f58f5 75%,#1ec1ed 99%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:15px}.alpha-hero .alpha-hero-subtitle,.alpha-hero .alpha-hero-subtitle-highlight{font-size:18px;line-height:28px}.alpha-hero .alpha-hero-subtitle{margin-bottom:5px;color:#888}.alpha-hero .alpha-hero-subtitle-highlight{font-weight:600;color:#f936de;margin-bottom:40px}.alpha-cta-btn{display:inline-block;padding:15px 50px;box-sizing:border-box;font-size:18px;font-weight:700;color:#fff;background:linear-gradient(83deg,#fe59fd,#f202b0 24%,#5151ff 50%,#0e5bf2 74%,#1fceec 99%);border-radius:77px;text-decoration:none;transition:transform .2s ease,box-shadow .2s ease;box-shadow:0 4px 20px #7c3aed40}.alpha-cta-btn:hover{transform:translateY(-2px);box-shadow:0 6px 28px #7c3aed66;opacity:.8;color:#fff;text-decoration:none}.alpha-section{width:var(--content-width);margin:0 auto;padding:80px 0;box-sizing:border-box}.alpha-section .alpha-section-title{font-size:48px;font-weight:700;line-height:64px;text-align:center;margin-bottom:40px}.alpha-section-steps{padding-top:0;box-sizing:border-box;width:1152px}.alpha-section-steps .alpha-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.alpha-section-steps .alpha-step-card{border-radius:16px;border:1px solid #E5E7EB;background:#f9fafb;padding:40px;box-sizing:border-box;text-align:center;transition:box-shadow .2s ease}.alpha-section-steps .alpha-step-card:hover{box-shadow:0 4px 16px #0000000f}.alpha-section-steps .alpha-step-number{width:64px;height:64px;border-radius:50%;background:linear-gradient(138deg,#fc48ee 12%,#1276f1 84%);color:#fff;font-size:32px;font-weight:700;display:flex;align-items:center;justify-content:center;margin:0 auto 24px}.alpha-section-steps 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84%);color:#fff;font-size:14px;font-weight:700;display:flex;align-items:center;justify-content:center;margin-top:1px}.alpha-section-who .alpha-who-image{flex-shrink:0;width:552px;display:flex;align-items:center;justify-content:center;background:#f9fafb;border-radius:16px}.alpha-section-who .alpha-who-image img{width:375px;height:296px;display:block}.alpha-bottom-cta{text-align:center}.alpha-bottom-cta .alpha-bottom-cta-title{font-size:48px;font-weight:700;line-height:64px;margin-bottom:40px}.nav-item{display:flex;align-items:center;gap:6px;padding:10px;box-sizing:border-box;border-radius:8px;cursor:pointer;font-size:14px;line-height:20px;color:#374151;background:transparent;border:none;width:100%;text-align:left;transition:background .2s ease,color .2s ease}.nav-item:hover{background:#f3f4f6;color:#1f2937}.nav-item.active{background:#eef0f3;color:#111827;font-weight:500;box-shadow:none}.nav-item.active .nav-pin,.nav-item.active .nav-delete{color:#6b7280}.nav-item.active .nav-pin:hover,.nav-item.active .nav-delete:hover{background:#11182714;color:#111827}.nav-item .nav-icon{width:20px;height:20px;display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:14px}.nav-item .nav-label{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.nav-item .nav-pin,.nav-item .nav-delete{display:none;align-items:center;justify-content:center;width:18px;height:18px;flex-shrink:0;border-radius:4px;color:var(--text-muted);font-size:12px;transition:background .1s,color .1s}.nav-item .nav-pin:hover,.nav-item .nav-delete:hover{background:#ef444426;color:#ef4444}.nav-item .nav-pin:hover{background:#11182714;color:#111827}.nav-item:hover .nav-pin,.nav-item:hover .nav-delete{display:flex}.sidebar-chat{width:260px;display:flex;flex-direction:column;z-index:10;overflow:hidden;border-right:1px solid #E5E5E5;transition:none;--sidebar-gutter: 15px;padding:24px var(--sidebar-gutter);box-sizing:border-box;gap:16px}.sidebar-chat.collapsed{width:var(--sidebar-collapsed-w);min-width:var(--sidebar-collapsed-w);--sidebar-gutter: 20px}.sidebar-chat.collapsed .sidebar-brand{flex-direction:column}.sidebar-chat.collapsed .sidebar-logo{justify-content:center}.sidebar-chat.collapsed .sidebar-logo .logo-text{opacity:0;width:0;transition-delay:0s}.sidebar-chat.collapsed .sidebar-logo:hover .sidebar-logo-img{opacity:0}.sidebar-chat.collapsed .sidebar-logo:hover .sidebar-logo-toggle{opacity:1;pointer-events:auto;background:#f3f4f6}.sidebar-chat.collapsed .sidebar-toggle-btn,.sidebar-chat.collapsed .sidebar-new-chat .new-chat-label{display:none}.sidebar-chat.collapsed .sidebar-new-chat{justify-content:center}.sidebar-chat.collapsed .sidebar-nav-title,.sidebar-chat.collapsed .history-toggle-btn{display:none}.sidebar-chat.collapsed .sidebar-user{background:transparent}.sidebar-chat.collapsed .sidebar-action-btn{justify-content:center;border-radius:10px}.sidebar-chat.collapsed .sidebar-action-label{display:none}.sidebar-brand{margin-bottom:8px;box-sizing:border-box;display:flex;align-items:center;justify-content:space-between;gap:10px}.sidebar-logo{display:flex;align-items:center;gap:8px;flex:1;min-width:0;height:40px;cursor:pointer}.sidebar-logo:hover .logo-text{color:var(--primary)}.sidebar-logo .logo-text{font-size:24px;font-weight:700;color:var(--text);opacity:1;width:auto;transition:opacity .2s ease,width .2s ease;transition-delay:.15s}.sidebar-logo-icon{position:relative;width:36px;height:34px;flex-shrink:0}.sidebar-logo-img{width:36px;height:34px;display:block;transition:opacity .15s ease}.sidebar-logo-toggle{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:40px;height:40px;padding:0;border:none;border-radius:8px;background:transparent;cursor:pointer;display:flex;align-items:center;justify-content:center;color:var(--text-secondary);opacity:0;pointer-events:none;transition:opacity .15s ease,background .15s ease}.sidebar-logo-toggle img{width:24px;height:24px;display:block}.sidebar-logo-toggle:hover{background:#f3f4f6}.sidebar-toggle-btn{width:40px;height:40px;padding:0;border:none;border-radius:8px;background:transparent;cursor:pointer;display:flex;align-items:center;justify-content:center;color:var(--text-secondary);flex-shrink:0;transition:background .15s ease}.sidebar-toggle-btn img{width:24px;height:24px;display:block}.sidebar-toggle-btn:hover{background:#f3f4f6}.sidebar-new-chat{display:flex;align-items:center;gap:6px;min-height:40px;padding:8px 10px;box-sizing:border-box;border:none;border-radius:var(--radius-sm);background:#f5eeff;cursor:pointer;color:#6f1ced;font-size:16px;font-weight:600;transition:background .15s,box-shadow .15s;width:100%}.sidebar-new-chat:hover{background:#ece9ff;box-shadow:0 6px 16px #7b72e81a}.sidebar-new-chat .new-chat-icon{display:flex;align-items:center;justify-content:center;width:20px;height:20px;flex-shrink:0;font-size:20px}.sidebar-new-chat .new-chat-label{flex:1;text-align:left}.sidebar-smart-negotiation{display:flex;align-items:center;gap:6px;min-height:40px;padding:8px 10px;box-sizing:border-box;margin:0 12px 16px;border:none;border-radius:var(--radius-sm);background:transparent;cursor:pointer;color:#334155;position:relative;overflow:hidden;transition:background .15s,color .15s;width:calc(100% - 24px)}.sidebar-smart-negotiation:hover{background:#f3f4f6;color:#111827}.sidebar-smart-negotiation .smart-negotiation-icon{display:inline-flex;align-items:center;justify-content:center;width:20px;height:20px;padding:0;box-sizing:border-box;flex-shrink:0;border:0;border-radius:0;background:transparent;color:inherit;font-size:20px}.sidebar-smart-negotiation .smart-negotiation-label{flex:1;text-align:left;white-space:nowrap;font-size:15px;line-height:20px;font-weight:600;color:inherit;min-width:0;overflow:hidden;text-overflow:ellipsis}.sidebar-nav{flex:1;display:flex;flex-direction:column;min-height:0;box-sizing:border-box;margin-right:calc(var(--sidebar-gutter) * -1);padding-right:var(--sidebar-gutter);overflow-y:auto;overflow-x:hidden;scrollbar-width:thin;scrollbar-color:#d8dee8 transparent}.sidebar-nav::-webkit-scrollbar{width:4px}.sidebar-nav::-webkit-scrollbar-thumb{background:#d8dee8;border-radius:4px}.sidebar-nav::-webkit-scrollbar-track{background:transparent}.sidebar-nav-title{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:0 5px;font-size:14px;color:var(--text-muted);font-weight:500;flex-shrink:0}.sidebar-nav-title--history{width:100%;padding:9px 10px;margin-bottom:10px;border:none;border-radius:8px;background:transparent;cursor:pointer;font:inherit;color:var(--text-muted);transition:background .15s ease,color .15s ease}.sidebar-nav-title--history .history-toggle-icon{display:inline-flex;align-items:center;justify-content:center;font-size:12px}.sidebar-nav-title--pinned{color:var(--text-muted);font-weight:600;margin-bottom:6px}.sidebar-nav-title--pinned span{display:inline-flex;align-items:center;gap:6px}.sidebar-nav-title--history{cursor:pointer;border-radius:4px;padding:6px 8px;margin-bottom:6px;transition:background .15s ease,color .15s ease}.sidebar-nav-title--history:hover{background:var(--border-light);color:var(--text)}.history-toggle-btn{display:inline-flex;align-items:center;justify-content:center;width:24px;height:24px;padding:0;border:none;border-radius:4px;background:transparent;color:var(--text-muted);cursor:pointer;font-size:12px;transition:background .15s ease,color .15s ease}.history-toggle-btn:hover{background:var(--border-light);color:var(--text)}.history-collapsed-slot{display:flex;justify-content:center;flex-shrink:0}.history-collapsed-hover{display:flex;justify-content:center}.history-collapsed-trigger{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;padding:0;border:none;border-radius:8px;background:transparent;color:#111827;cursor:pointer;font-size:20px;transition:background .15s ease,color .15s ease}.history-collapsed-trigger:hover{background:#e9e9e9;color:#111827}.history-custom-flyout{position:fixed;top:128px;left:calc(var(--sidebar-collapsed-w) - 12px);z-index:1100;padding-left:12px}.history-popover-list{width:300px;max-height:460px;padding:10px;background:#fff;border:1px solid rgba(15,23,42,.08);border-radius:8px;box-shadow:0 8px 26px #0f172a1f;overflow-y:auto;scrollbar-width:thin}.history-popover-list::-webkit-scrollbar{width:8px}.history-popover-list::-webkit-scrollbar-thumb{background:#9b9b9b;border:2px solid #fff;border-radius:999px}.history-popover-list::-webkit-scrollbar-track{background:transparent}.history-popover-list .nav-item{padding:7px 10px;gap:8px;border-radius:8px;font-size:14px;line-height:20px;box-shadow:none}.history-popover-list .sidebar-pinned-list{margin-bottom:8px}.history-popover-list .nav-icon,.history-popover-list .nav-pin,.history-popover-list .nav-delete{display:none}.history-popover-list .history-empty,.history-popover-list .history-loading{padding:18px;font-size:14px}.history-empty{padding:24px 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