:root{--color-text: #1a1a1a;--color-bg: #ffffff;--color-page-bg: #e8edf3;--color-border: #767676;--color-primary: #0369a1;--color-primary-hover: #0f172a;--color-primary-text: #ffffff;--color-success: #1e6b3a;--color-success-bg: #e8f5e9;--color-warning: #7a4a00;--color-warning-bg: #fff3cd;--color-error: #b3261e;--color-error-bg: #fef2f2;--color-info: #0a4a8f;--color-info-bg: #e7f1fb;--color-card-title: #0f172a;--color-card-subtitle: #64748b;--color-field-label: #334155;--color-placeholder: #94a3b8;--color-logo-icon-bg: #e0f2fe;--color-input-icon-bg: #f8fafc;--color-focus-ring: rgba(3, 105, 161, .15)}*{margin:0;padding:0;box-sizing:border-box}body{font-size:18px;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Noto Sans TC,Roboto,sans-serif;line-height:1.6;color:var(--color-text);background:var(--color-page-bg)}.reg-container{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;background-color:var(--color-page-bg);padding:2rem 1.25rem;position:relative;overflow:hidden}.reg-glow{position:absolute;border-radius:50%;filter:blur(80px);pointer-events:none}.reg-glow--1{width:600px;height:600px;background:radial-gradient(circle,rgba(3,105,161,.18) 0%,transparent 70%);top:-200px;right:-150px}.reg-glow--2{width:500px;height:500px;background:radial-gradient(circle,rgba(14,116,144,.12) 0%,transparent 70%);bottom:-150px;left:-120px}.reg-card{position:relative;background:var(--color-bg);border-radius:16px;border:1px solid rgba(0,0,0,.06);box-shadow:0 4px 6px -1px #00000014,0 10px 20px -3px #0000001a,0 20px 40px -5px #0000001a;width:100%;max-width:420px}.reg-card--wide{max-width:560px}.reg-logo-section{text-align:center;padding:2rem 2rem 1rem}.reg-logo-row{display:flex;align-items:center;justify-content:center;gap:.6rem}.reg-logo-icon{width:44px;height:44px;background-color:var(--color-logo-icon-bg);border-radius:50%;color:var(--color-primary);display:flex;align-items:center;justify-content:center;flex-shrink:0}.reg-card 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ease}.reg-nav-tab:hover{background-color:#f1f5f9}.reg-nav-tab.reg-nav-tab--active{background:var(--color-primary);border-color:var(--color-primary);color:var(--color-primary-text)}.reg-nav-spacer{flex:1}.reg-nav-email{font-size:.85rem;color:var(--color-card-subtitle);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:14rem}.reg-form{display:flex;flex-direction:column;gap:1.1rem}.reg-field{display:flex;flex-direction:column}.reg-field label{font-size:.9rem;font-weight:700;color:var(--color-field-label);margin-bottom:.4rem}.reg-required{color:var(--color-error)}.reg-input-wrapper{display:flex;align-items:stretch;border:1px solid var(--color-border);border-radius:10px;background:var(--color-bg);transition:border-color .15s,box-shadow .15s}.reg-input-wrapper:focus-within{border-color:var(--color-primary);box-shadow:0 0 0 3px var(--color-focus-ring)}.reg-input-wrapper--invalid{border-color:var(--color-error)}.reg-input-icon{display:flex;align-items:center;justify-content:center;padding:0 .75rem;background:var(--color-input-icon-bg);border-right:1px solid var(--color-border);border-radius:9px 0 0 9px;color:var(--color-primary)}.reg-input-wrapper input,.reg-input-wrapper select{flex:1;min-width:0;padding:.6rem .75rem;border:none;border-radius:0 9px 9px 0;background:transparent;outline:none;font-size:1rem;font-family:inherit;color:var(--color-text)}.reg-input-wrapper input::placeholder{color:var(--color-placeholder)}.reg-input-wrapper select:disabled,.reg-input-wrapper input:disabled{background:#f1f5f9;color:var(--color-card-subtitle);cursor:not-allowed;border-radius:0 9px 9px 0}.reg-field-error{display:flex;align-items:center;gap:.35rem;background:var(--color-error-bg);color:var(--color-error);font-size:.85rem;border-radius:8px;padding:.5rem .65rem;margin-top:.45rem}.reg-field-hint{margin:.4rem 0 0;font-size:.85rem;color:var(--color-card-subtitle)}.reg-choice-group{display:flex;gap:.75rem;flex-wrap:wrap}.reg-choice{display:flex;align-items:center;gap:.45rem;padding:.5rem .9rem;border:1px solid var(--color-border);border-radius:10px;cursor:pointer;font-size:.95rem;transition:border-color .15s,background-color .15s}.reg-choice:hover{background:#f8fafc}.reg-choice--checked{border-color:var(--color-primary);background:var(--color-logo-icon-bg);color:var(--color-primary);font-weight:600}.reg-choice input{accent-color:var(--color-primary);width:1.1rem;height:1.1rem}button.reg-submit{width:100%;padding:.75rem 1rem;font-size:1.05rem;font-weight:600;font-family:inherit;color:var(--color-primary-text);background:var(--color-primary);border:none;border-radius:10px;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:.5rem;box-shadow:0 2px 8px #0369a140;transition:background-color .15s ease,transform .15s ease}button.reg-submit:hover:not(:disabled){background-color:var(--color-primary-hover);transform:translateY(-1px)}button.reg-submit:active:not(:disabled){transform:translateY(0)}button.reg-submit:disabled{cursor:not-allowed;opacity:.7}button.reg-btn-secondary{padding:.75rem 1rem;font-size:1.05rem;font-weight:600;font-family:inherit;color:var(--color-field-label);background:var(--color-bg);border:1px solid var(--color-border);border-radius:10px;cursor:pointer;transition:background-color .15s ease}button.reg-btn-secondary:hover{background-color:#f1f5f9}button.reg-btn-small{display:inline-flex;align-items:center;gap:.35rem;padding:.4rem .75rem;font-size:.9rem;font-weight:600;font-family:inherit;border-radius:8px;cursor:pointer;border:1px solid var(--color-border);background:var(--color-bg);color:var(--color-field-label);transition:background-color .15s ease}button.reg-btn-small:hover{background-color:#f1f5f9}button.reg-btn-small--danger{color:var(--color-error);border-color:var(--color-error)}button.reg-btn-small--danger:hover{background-color:var(--color-error-bg)}.reg-note{display:flex;align-items:flex-start;gap:.5rem;background:var(--color-info-bg);color:var(--color-info);border:1px solid var(--color-info);border-radius:10px;padding:.75rem 1rem;font-size:.9rem;line-height:1.5}.reg-note svg{flex-shrink:0;margin-top:.2em}.reg-notice{background:var(--color-warning-bg);color:var(--color-warning);border:1px solid var(--color-warning);border-radius:10px;padding:.75rem 1rem;margin-bottom:1.25rem;font-size:.9rem}.reg-alert{display:flex;align-items:flex-start;gap:.5rem;border-radius:10px;padding:.85rem 1rem;margin-top:1.25rem;border:1px solid transparent;font-size:.95rem}.reg-alert-success{background:var(--color-success-bg);color:var(--color-success);border-color:var(--color-success)}.reg-alert-warning{background:var(--color-warning-bg);color:var(--color-warning);border-color:var(--color-warning)}.reg-alert-error{background:var(--color-error-bg);color:var(--color-error);border-color:var(--color-error)}.reg-alert-info{background:var(--color-info-bg);color:var(--color-info);border-color:var(--color-info)}.reg-modal-backdrop{position:fixed;inset:0;z-index:100;display:flex;align-items:center;justify-content:center;background:#0f172a80;padding:1rem}.reg-modal{width:100%;max-width:420px;background:var(--color-bg);border-radius:14px;padding:1.5rem;box-shadow:0 12px 40px #0f172a40}.reg-modal-title{margin:0 0 1rem;font-size:1.15rem;font-weight:700;color:var(--color-card-title)}.reg-modal-summary{background:var(--color-input-icon-bg);border:1px solid var(--color-border);border-radius:10px;padding:.75rem 1rem;display:flex;flex-direction:column;gap:.35rem;font-size:.95rem}.reg-modal-summary dt{color:var(--color-card-subtitle);font-size:.85rem}.reg-modal-summary dd{margin:0 0 .35rem;font-weight:600}.reg-modal-actions{display:flex;gap:.75rem;margin-top:1.25rem}.reg-modal-actions>*{flex:1}.reg-spinner{display:inline-block;width:1.1em;height:1.1em;border:.18em solid rgba(255,255,255,.45);border-top-color:#fff;border-radius:50%;animation:reg-spin .75s linear infinite}.reg-spinner--primary{width:1.6rem;height:1.6rem;border-color:#0369a140;border-top-color:var(--color-primary)}@keyframes reg-spin{to{transform:rotate(360deg)}}@media(prefers-reduced-motion:reduce){.reg-spinner{animation-duration:1.6s}}.reg-record{border:1px solid rgba(0,0,0,.1);border-radius:12px;padding:1rem 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