:root{color-scheme:light;--brand:#0a2550;--brand-deep:#061a3b;--accent:#c8342b;--background:#f2f5f9;--panel:#ffffff;--text:#172033;--muted:#667085;--border:#dfe5ed;--success:#13795b;--danger:#b42318}*{box-sizing:border-box}body,html{min-height:100%;margin:0}body{background:var(--background);color:var(--text);font-family:Arial,PingFang SC,Microsoft YaHei,sans-serif}button,input{font:inherit}button{cursor:pointer}.auth-shell{display:grid;grid-template-columns:minmax(320px,.9fr) minmax(420px,1.1fr);width:min(1040px,calc(100% - 48px));min-height:640px;margin:max(40px,7vh) auto;overflow:hidden;border:1px solid var(--border);border-radius:18px;background:var(--panel);box-shadow:0 26px 80px rgb(10 37 80/12%)}.brand-panel{display:flex;flex-direction:column;justify-content:space-between;padding:56px 48px 42px;background:linear-gradient(145deg,rgb(255 255 255/4%),transparent 48%),var(--brand-deep);color:white}.eyebrow{margin:0 0 12px;color:inherit;font-size:12px;font-weight:800;letter-spacing:.14em;opacity:.68}h1,h2,p{margin-top:0}h1{margin-bottom:18px;font-size:clamp(34px,5vw,52px);line-height:1.08;letter-spacing:-.03em}.brand-copy{max-width:360px;margin-bottom:0;color:rgb(255 255 255/72%);font-size:16px;line-height:1.8}.system-state{display:grid;gap:12px;margin:0}.system-state div{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-top:12px;border-top:1px solid rgb(255 255 255/12%)}.system-state dt{color:rgb(255 255 255/54%);font-size:12px}.system-state dd{margin:0;font-size:13px;font-weight:700}.auth-panel{display:grid;align-items:center;padding:48px 64px}.auth-interaction-boundary{min-width:0;margin:0;padding:0;border:0}.panel-heading h2,.success-card h2{margin-bottom:10px;color:var(--brand);font-size:28px;letter-spacing:-.02em}.panel-heading>p:last-child,.success-card>p{margin-bottom:24px;color:var(--muted);font-size:14px;line-height:1.65}.mode-switch{display:grid;grid-template-columns:1fr 1fr;gap:4px;margin-bottom:24px;padding:4px;border-radius:9px;background:#f0f3f7}.mode-switch button{min-height:44px;padding:9px 12px;border:0;border-radius:6px;background:transparent;color:var(--muted);font-size:13px;font-weight:700}.mode-switch button[aria-pressed=true]{background:white;color:var(--brand);box-shadow:0 1px 4px rgb(10 37 80/12%)}.auth-form{display:grid;gap:17px}.auth-form label{display:grid;gap:8px;color:var(--text);font-size:13px;font-weight:700}.auth-form input{width:100%;height:46px;padding:0 13px;border:1px solid var(--border);border-radius:7px;outline:none;background:white;color:var(--text);font-size:15px;transition:border-color .12s ease,box-shadow .12s ease}.auth-form input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgb(10 37 80/10%)}.auth-form input::placeholder{color:#98a2b3}.primary-button,.secondary-button{min-height:46px;padding:0 18px;border:0;border-radius:7px;font-weight:800}.primary-button{background:var(--brand);color:white}.primary-button:hover:not(:disabled){background:#10366e}.primary-button:disabled{cursor:wait;opacity:.58}.secondary-button{border:1px solid var(--border);background:white;color:var(--brand)}.text-button{justify-self:center;min-height:44px;padding:8px;border:0;background:transparent;color:var(--muted);font-size:13px}.owner-initialization-entry,.owner-initialization-status{display:flex;min-width:0;align-items:center;justify-content:space-between;gap:12px;margin:-8px 0 20px;padding:12px 14px;border:1px solid var(--border);border-radius:9px;color:var(--muted);background:#f8fafc;font-size:12px;line-height:1.5}.owner-initialization-entry button,.owner-initialization-status button{min-width:88px;min-height:44px;flex:0 0 auto;border:1px solid var(--border);border-radius:7px;color:var(--brand);background:white;font-weight:800}.owner-initialization-status.is-error{border-color:#f2d2cf;color:var(--danger);background:#fef7f6}.initialization-context,.initialization-missing{display:grid;gap:5px;padding:12px 14px;border:1px solid var(--border);border-radius:7px;color:var(--muted);background:#f8fafc;font-size:13px;line-height:1.5}.initialization-context span{font-size:12px}.initialization-context strong{color:var(--brand)}.initialization-missing{border-color:#f2d2cf;color:var(--danger);background:#fef7f6}.auth-secondary-entry{display:block;margin:18px auto 0}.form-error{margin:-4px 0 0;padding:10px 12px;border-radius:6px;background:#fef3f2;color:var(--danger)}.delivery-notice,.form-error{font-size:13px;line-height:1.5}.delivery-notice{display:grid;gap:4px;padding:13px 14px;border:1px solid #cfe8df;border-radius:7px;background:#f0faf6;color:var(--success)}.security-note{margin:22px 0 0;color:#98a2b3;font-size:11px;line-height:1.6}.security-note,.success-card{text-align:center}.success-mark{display:grid;width:54px;height:54px;margin:0 auto 22px;border-radius:50%;place-items:center;background:#e8f6f0;color:var(--success);font-size:26px;font-weight:800}.success-card time{display:block;margin-top:4px;color:var(--text);font-weight:700}.session-detail{display:flex;justify-content:space-between;margin-bottom:24px;padding:12px 14px;border:1px solid var(--border);border-radius:7px;color:var(--muted);font-size:13px}.session-detail strong{color:var(--brand)}@media (max-width:820px){.auth-shell{grid-template-columns:1fr;width:min(620px,calc(100% - 32px));margin:24px auto}.brand-panel{min-height:280px;padding:36px}.system-state{margin-top:36px}.auth-panel{min-height:540px;padding:42px 36px}}@media (max-width:480px){.auth-shell{width:100%;min-height:100vh;margin:0;border:0;border-radius:0}.brand-panel{min-height:200px;padding:30px 24px}.system-state{display:none}.auth-panel{min-height:auto;padding:36px 24px 48px}.owner-initialization-entry,.owner-initialization-status{align-items:stretch;flex-direction:column}.owner-initialization-entry button,.owner-initialization-status button{width:100%}}