.zh-reg-root{--blue:#0f62fe;--blue-hover:#0353e9;--bg-page:#000000;--bg-panel:#262626;--bg-field:#393939;--bg-field-border:#525252;--text-primary:#f4f4f4;--text-secondary:#c6c6c6;--text-muted:#8d8d8d;--text-disabled:#6f6f6f;--divider:#525252;--btn-disabled:#525252;--font:var(--font-ibm-plex),"IBM Plex Sans",system-ui,sans-serif;min-height:100vh;background:var(--bg-page);color:var(--text-primary);font-family:var(--font);font-size:14px;font-weight:400;line-height:1.5;position:relative;overflow-x:hidden}.zh-reg-root *,.zh-reg-root :after,.zh-reg-root :before{box-sizing:border-box;margin:0;padding:0}.zh-reg-glow{pointer-events:none;position:fixed;bottom:0;left:0;right:0;height:280px;z-index:0;background:radial-gradient(ellipse 55% 100% at 8% 100%,rgba(15,98,254,.35) 0,transparent 70%),radial-gradient(ellipse 50% 90% at 92% 100%,rgba(218,30,40,.28) 0,transparent 70%)}.zh-reg-header{position:relative;z-index:10;justify-content:space-between;padding:16px 32px;min-height:48px}.zh-reg-header,.zh-reg-logo{display:flex;align-items:center}.zh-reg-logo{gap:10px;text-decoration:none;color:var(--text-primary);font-size:14px;font-weight:400;letter-spacing:.02em}.zh-reg-logo-mark{flex-shrink:0}.zh-reg-logo-accent{color:var(--blue);font-weight:500}.zh-reg-nav{display:flex;align-items:center;gap:24px}.zh-reg-nav a{color:var(--text-primary);text-decoration:none;font-size:14px;font-weight:400;transition:color .12s}.zh-reg-nav a:hover{color:var(--text-secondary)}.zh-reg-main{position:relative;z-index:5;max-width:1280px;margin:0 auto;padding:32px 32px 80px}.zh-reg-title-block{margin-bottom:40px}.zh-reg-title-block h1{font-size:40px;font-weight:400;color:var(--text-primary);letter-spacing:-.02em;line-height:1.25;margin-bottom:8px}.zh-reg-title-block h1 strong{font-weight:600}.zh-reg-login-prompt{font-size:14px;color:var(--text-secondary);font-weight:300}.zh-reg-login-prompt a{color:var(--blue);text-decoration:none}.zh-reg-login-prompt a:hover{text-decoration:underline}.zh-reg-columns{display:grid;grid-template-columns:1fr 1fr;grid-gap:48px;gap:48px;align-items:start}.zh-reg-form-wrap{background:var(--bg-panel);border:1px solid #393939;min-height:520px}.zh-reg-form-inner{display:grid;grid-template-columns:200px 1fr;min-height:520px}.zh-reg-stepper{padding:32px 24px 32px 32px;border-right:1px solid #393939}.zh-reg-step{display:flex;align-items:flex-start;gap:12px;padding-bottom:28px;position:relative}.zh-reg-step:not(:last-child):after{content:"";position:absolute;left:7px;top:22px;bottom:0;width:1px;background:#525252}.zh-reg-step-dot{width:16px;height:16px;border-radius:50%;flex-shrink:0;margin-top:2px;border:2px solid #525252;background:transparent}.zh-reg-step.active .zh-reg-step-dot{border-color:var(--blue);background:var(--blue);box-shadow:inset 0 0 0 3px var(--bg-panel)}.zh-reg-step-label{font-size:14px;color:var(--text-muted);font-weight:400;line-height:1.35}.zh-reg-step.active .zh-reg-step-label{color:var(--text-primary)}.zh-reg-form-body{padding:32px 40px 24px;display:flex;flex-direction:column}.zh-reg-field{margin-bottom:24px}.zh-reg-field label{display:block;font-size:12px;font-weight:400;color:var(--text-secondary);margin-bottom:8px;letter-spacing:.16px}.zh-reg-input-wrap{position:relative}.zh-reg-input{width:100%;padding:14px 48px 14px 16px;background:var(--bg-field);border:none;border-bottom:1px solid var(--bg-field-border);color:var(--text-primary);font-family:var(--font);font-size:14px;outline:none;transition:border-color .15s}.zh-reg-input:focus{border-bottom-color:var(--blue);outline:1px solid var(--blue);outline-offset:-1px}.zh-reg-input::placeholder{color:var(--text-muted)}.zh-reg-input-icon{position:absolute;right:12px;top:50%;transform:translateY(-50%);color:var(--text-muted);background:none;border:none;cursor:pointer;padding:4px;display:flex;align-items:center;justify-content:center}.zh-reg-input-icon svg{width:16px;height:16px}.zh-reg-or{display:flex;align-items:center;gap:16px;margin:8px 0 20px;color:var(--text-muted);font-size:12px}.zh-reg-or:after,.zh-reg-or:before{content:"";flex:1 1;height:1px;background:var(--divider)}.zh-reg-social{display:flex;flex-direction:column;gap:8px;margin-bottom:24px}.zh-reg-social-btn{display:flex;align-items:center;justify-content:center;gap:12px;width:100%;padding:14px 16px;background:var(--bg-field);border:1px solid var(--bg-field-border);color:var(--text-primary);font-family:var(--font);font-size:14px;font-weight:400;cursor:pointer;transition:background .12s}.zh-reg-social-btn:hover{background:#4a4a4a}.zh-reg-social-btn svg{flex-shrink:0}.zh-reg-next-wrap{margin-top:auto;padding-top:16px}.zh-reg-next{display:flex;align-items:center;justify-content:center;gap:8px;width:100%;max-width:200px;margin-left:auto;padding:14px 20px;background:var(--btn-disabled);border:none;color:var(--text-muted);font-family:var(--font);font-size:14px;font-weight:400;cursor:not-allowed}.zh-reg-next svg{width:16px;height:16px}.zh-reg-create-bar{border-top:1px solid #393939;padding:16px 40px;background:rgba(0,0,0,.2)}.zh-reg-create-btn{display:flex;align-items:center;justify-content:center;gap:8px;width:100%;padding:16px 24px;background:rgba(82,82,82,.6);border:none;color:var(--text-disabled);font-family:var(--font);font-size:14px;font-weight:400;cursor:not-allowed}.zh-reg-create-btn svg{width:16px;height:16px}.zh-reg-benefits{padding-top:8px}.zh-reg-benefit{display:flex;gap:16px;margin-bottom:32px}.zh-reg-benefit-icon{flex-shrink:0;color:var(--blue);margin-top:2px}.zh-reg-benefit-icon,.zh-reg-benefit-icon svg{width:20px;height:20px}.zh-reg-benefit h3{font-size:16px;font-weight:400;color:var(--text-primary);margin-bottom:8px;line-height:1.35}.zh-reg-benefit p{font-size:14px;font-weight:300;color:var(--text-secondary);line-height:1.55;max-width:420px}.zh-reg-benefit-link{display:inline-flex;align-items:center;gap:4px;margin-top:8px;color:var(--blue);text-decoration:none;font-size:14px;font-weight:400}.zh-reg-benefit-link:hover{text-decoration:underline}.zh-reg-footer{position:relative;z-index:10;padding:24px 32px 32px;font-size:12px;color:var(--text-muted);font-weight:300}.zh-reg-cookie-tab{position:fixed;right:0;top:50%;transform:translateY(-50%) rotate(-90deg);transform-origin:right center;background:var(--text-primary);color:var(--bg-page);padding:8px 16px;font-size:12px;font-weight:400;border:none;cursor:pointer;z-index:100;white-space:nowrap;letter-spacing:.02em}@media (max-width:900px){.zh-reg-columns{gap:40px}.zh-reg-columns,.zh-reg-form-inner{grid-template-columns:1fr}.zh-reg-stepper{border-right:none;border-bottom:1px solid #393939;display:flex;flex-wrap:wrap;gap:16px;padding:20px 24px}.zh-reg-step{padding-bottom:0}.zh-reg-step:not(:last-child):after{display:none}.zh-reg-header{padding:16px 20px}.zh-reg-main{padding:24px 20px 60px}.zh-reg-nav{gap:16px}.zh-reg-nav a:nth-child(2){display:none}}@media (max-width:600px){.zh-reg-title-block h1{font-size:24px}.zh-reg-form-body{padding:24px 20px 20px}.zh-reg-create-bar{padding:16px 20px}.zh-reg-nav a:first-child{display:none}}