.zh-login-root{--blue:#0f62fe;--blue-hover:#0353e9;--bg-page:#000000;--bg-left:#161616;--bg-field:#262626;--bg-field-border:#525252;--text-primary:#f4f4f4;--text-secondary:#c6c6c6;--text-muted:#8d8d8d;--text-link:#78a9ff;--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;display:flex;flex-direction:column}.zh-login-root *,.zh-login-root :after,.zh-login-root :before{box-sizing:border-box;margin:0;padding:0}.zh-login-header{display:flex;align-items:center;justify-content:space-between;padding:0 24px;height:48px;background:var(--bg-page);border-bottom:1px solid #262626;flex-shrink:0}.zh-login-logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--text-primary);font-size:14px;font-weight:400}.zh-login-logo span{color:var(--blue);font-weight:500}.zh-login-nav,.zh-login-nav a{display:flex;align-items:center;gap:8px}.zh-login-nav a{color:var(--text-primary);text-decoration:none;font-size:14px;font-weight:400;padding:8px 12px;transition:background .12s}.zh-login-nav a:hover{background:#262626}.zh-login-nav svg{width:16px;height:16px;opacity:.9}.zh-login-body{display:grid;grid-template-columns:minmax(380px,42%) 1fr;flex:1 1;min-height:calc(100vh - 48px)}.zh-login-left{background:var(--bg-left);padding:48px 56px 32px 48px;display:flex;flex-direction:column;min-height:100%}.zh-login-weather-icon{width:32px;height:32px;margin-bottom:24px;color:var(--text-primary)}.zh-login-left h1{font-size:28px;font-weight:400;color:var(--text-primary);letter-spacing:-.02em;margin-bottom:12px;line-height:1.25}.zh-login-signup-prompt{font-size:14px;color:var(--text-secondary);font-weight:300;margin-bottom:40px}.zh-login-signup-prompt a{color:var(--text-link);text-decoration:none}.zh-login-signup-prompt a:hover{text-decoration:underline}.zh-login-form{flex:1 1;max-width:400px}.zh-login-label{display:block;font-size:12px;color:var(--text-muted);margin-bottom:8px;font-weight:400}.zh-login-select-wrap{position:relative;margin-bottom:12px}.zh-login-select{width:100%;-webkit-appearance:none;-moz-appearance:none;appearance:none;background:var(--bg-field);border:1px solid var(--bg-field-border);color:var(--text-primary);padding:14px 40px 14px 16px;font-family:var(--font);font-size:14px;cursor:pointer;outline:none}.zh-login-select:focus{outline:2px solid var(--blue);outline-offset:-2px}.zh-login-select-chevron{position:absolute;right:14px;top:50%;transform:translateY(-50%);pointer-events:none;color:var(--text-muted)}.zh-login-select-chevron svg{width:16px;height:16px}.zh-login-input{width:100%;padding:14px 16px;background:var(--bg-field);border:1px solid #f4f4f4;color:var(--text-primary);font-family:var(--font);font-size:14px;outline:none;margin-bottom:16px}.zh-login-input:focus{outline:2px solid var(--blue);outline-offset:-2px}.zh-login-input::placeholder{color:var(--text-muted)}.zh-login-continue{display:flex;align-items:stretch;width:100%;margin-bottom:16px;border:none;cursor:pointer;font-family:var(--font);padding:0}.zh-login-continue-text{flex:1 1;background:var(--blue);color:white;padding:14px 20px;font-size:14px;font-weight:400;text-align:left;display:flex;align-items:center;transition:background .12s}.zh-login-continue:hover .zh-login-continue-text{background:var(--blue-hover)}.zh-login-continue-arrow{background:var(--blue);color:white;width:48px;display:flex;align-items:center;justify-content:center;border-left:1px solid rgba(255,255,255,.2);transition:background .12s}.zh-login-continue:hover .zh-login-continue-arrow{background:var(--blue-hover)}.zh-login-continue-arrow svg{width:16px;height:16px}.zh-login-options{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px;font-size:14px}.zh-login-forgot{color:var(--text-link);text-decoration:none}.zh-login-forgot:hover{text-decoration:underline}.zh-login-remember{display:flex;align-items:center;gap:8px;color:var(--text-secondary);cursor:pointer;font-weight:300}.zh-login-remember input{width:16px;height:16px;accent-color:var(--blue);cursor:pointer}.zh-login-or{display:flex;align-items:center;gap:16px;margin-bottom:16px;color:var(--text-muted);font-size:12px}.zh-login-or:after,.zh-login-or:before{content:"";flex:1 1;height:1px;background:#393939}.zh-login-social{display:flex;flex-direction:column;gap:8px}.zh-login-social-btn{display:flex;align-items:center;justify-content:space-between;width:100%;padding:14px 16px;background:transparent;border:1px solid #f4f4f4;color:var(--text-primary);font-family:var(--font);font-size:14px;font-weight:400;cursor:pointer;transition:background .12s}.zh-login-social-btn:hover{background:rgba(255,255,255,.06)}.zh-login-left-footer{margin-top:auto;padding-top:48px;font-size:12px;color:var(--text-muted);font-weight:300;line-height:1.6}.zh-login-left-footer a{color:var(--text-link);text-decoration:none}.zh-login-left-footer a:hover{text-decoration:underline}.zh-login-right{position:relative;background:#000;overflow:hidden;display:flex;align-items:center;justify-content:center;min-height:400px}.zh-login-scene{position:absolute;inset:0;overflow:hidden}.zh-login-scene svg{width:100%;height:100%;object-fit:cover}.zh-login-promo-card{position:relative;z-index:2;background:rgba(208,226,255,.92);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);padding:40px 36px;max-width:380px;margin:24px;box-shadow:0 8px 32px rgba(0,0,0,.4)}.zh-login-promo-card h2{font-size:28px;font-weight:600;color:#161616;letter-spacing:-.02em;margin-bottom:16px;line-height:1.2}.zh-login-promo-card h2 sup{font-size:12px;font-weight:400;vertical-align:super}.zh-login-promo-card p{font-size:14px;font-weight:400;color:#393939;line-height:1.55;margin-bottom:24px}.zh-login-promo-btn{display:inline-block;padding:12px 20px;border:1px solid var(--blue);color:var(--blue);background:transparent;font-family:var(--font);font-size:14px;font-weight:400;text-decoration:none;cursor:pointer;transition:background .12s,color .12s}.zh-login-promo-btn:hover{background:var(--blue);color:white}.zh-login-cookie-tab{position:fixed;right:0;bottom:24px;background:var(--text-primary);color:var(--bg-page);padding:8px 16px;font-size:12px;font-weight:400;border:none;cursor:pointer;z-index:100}@media (max-width:900px){.zh-login-body{grid-template-columns:1fr}.zh-login-right{min-height:320px;order:-1}.zh-login-left{padding:32px 24px}.zh-login-nav-label{display:none}}