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.stage-watermark{right:-6px;width:136px;height:136px;color:rgba(180,95,62,.16)}.stage-title{position:relative;z-index:2;margin:0;font-size:34px;line-height:1.06;font-weight:600;letter-spacing:-.05em;white-space:pre-line}.stage-claude .stage-title{font-size:31px}.stage-foot{position:relative;z-index:2;margin:10px 0 0;font-size:9px;letter-spacing:.07em;color:#86868b;text-transform:uppercase;opacity:1}@media (max-width:640px){.hero-stage{height:520px}.hero-stage:before{inset:4% 0 2%}.stage-card{padding:20px;border-radius:26px}.stage-gpt{width:86%;height:280px;left:0;top:0}.stage-claude{width:86%;height:260px;right:0;top:270px}.stage-logo{width:31px;height:31px;border-radius:10px}.stage-title{font-size:30px}.stage-claude .stage-title{font-size:28px}.stage-watermark{width:104px;height:104px;right:-6px}.stage-claude .stage-watermark{width:96px;height:96px;right:-4px}.stage-glow{right:-46px;width:160px;height:160px}}.contact-menu{position:relative}.nav-contact{display:inline-flex;align-items:center;gap:3px;padding:6px 0;border:0;background:transparent;color:var(--muted);font-size:12.5px;transition:color .2s ease}.nav-contact.is-open,.nav-contact:hover{color:var(--ink)}.nav-contact svg{width:10px;height:10px;fill:none;stroke:currentColor;stroke-width:1.4;transition:transform .2s ease}.nav-contact.is-open svg{transform:rotate(180deg)}.contact-dropdown{position:absolute;top:calc(100% + 12px);right:-10px;z-index:100;width:320px;max-width:calc(100vw - 32px);padding:22px;border:1px solid rgba(0,0,0,.08);border-radius:20px;background:rgba(255,255,255,.97);box-shadow:0 26px 70px rgba(0,0,0,.16);backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);animation:contact-in .2s cubic-bezier(.22,.8,.3,1) both}@keyframes contact-in{0%{opacity:0;transform:translateY(6px) scale(.985)}to{opacity:1;transform:translateY(0) scale(1)}}.contact-dropdown .eyebrow{margin-bottom:7px}.contact-dropdown h2{margin:0;font-size:22px;font-weight:600;letter-spacing:-.04em}.contact-list{margin-top:16px;border-top:1px solid var(--line)}.contact-row{display:flex;align-items:center;gap:10px;padding:11px 0;border-bottom:1px solid var(--line)}.contact-dot{display:grid;place-items:center;width:30px;height:30px;flex-shrink:0;border-radius:9px;background:#f1f1f3;color:#515154;font-size:10px;font-weight:600}.contact-dot.is-qq{background:#e8f2fd;color:#0066cc}.contact-dot.is-wechat{background:#e9f6ee;color:#1d8a4e}.contact-row>div{min-width:0;flex:1 1}.contact-row strong{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:12.5px;font-weight:500}.contact-row div span{display:block;margin-top:2px;font-size:9.5px;color:var(--soft)}.contact-row>button{flex-shrink:0;padding:5px 8px;border:0;border-radius:7px;background:#f1f1f3;color:#515154;font-size:10px}.contact-row>button:hover{background:#e8e8ed}.contact-empty{margin:16px 0 0;padding:13px;border-radius:11px;background:#f5f5f7;color:var(--muted);font-size:11px;line-height:1.55}.support-badge.is-phone{background:#eef0f4;color:#3a3a3d}@media (max-width:640px){.contact-dropdown{right:-74px;width:calc(100vw - 32px)}}.contact-combo{display:grid;grid-template-columns:138px minmax(0,1fr);grid-gap:8px;gap:8px}.contact-combo select{width:100%;border:1px solid var(--line-strong);border-radius:12px;background:#fff;padding:11px 12px;font-size:13.5px;color:var(--ink)}.contact-combo select:focus{outline:none;border-color:rgba(0,113,227,.6);box-shadow:0 0 0 3px rgba(0,113,227,.12)}.contact-combo input:disabled{background:#f5f5f7;color:#a1a1a6;cursor:not-allowed}@media (max-width:480px){.contact-combo{grid-template-columns:118px minmax(0,1fr)}}.turnstile-slot{min-height:65px;margin:2px 0 14px;overflow:hidden}.turnstile-slot iframe{max-width:100%}.turnstile-unavailable{margin:2px 0 14px;padding:10px 12px;border-radius:9px;background:#f5f5f7;color:var(--muted);font-size:11px;line-height:1.5}