:root{--primary:#ff7a3d;--primary-dark:#ea5f1f;--primary-soft:rgba(255,122,61,.12);--line:#e6eaf2;--muted:#64748b;--muted-2:#94a3b8;--danger:#ef4444;--ok:#16a34a;--dark:#0a1532;--dark-2:#19234a;--field-h:42px;}*{box-sizing:border-box;}[hidden]{display:none !important;}body{margin:0;min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:24px;background:linear-gradient(135deg,#eef2ff,#f7f9ff);font:14px/1.6 system-ui,-apple-system,"Segoe UI","Microsoft YaHei",sans-serif;color:#0f172a;}.auth-bg{position:fixed;inset:0;z-index:-1;background:url('/assets/login-bg.jpg') center / cover no-repeat #0a1532;}.auth-bg::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,21,50,.30),rgba(10,21,50,.48));}.auth-bg~.back-home-wrap .back-home{color:rgba(255,255,255,.82);}.auth-bg~.back-home-wrap .back-home:hover{color:#fff;background:rgba(255,255,255,.14);}.back-home-wrap{width:100%;max-width:830px;margin:0 auto 14px;padding:0 4px;}.back-home{display:inline-flex;align-items:center;font-size:13px;color:var(--muted);text-decoration:none;padding:6px 10px;border-radius:6px;transition:color .15s,background .15s;}.back-home:hover{color:var(--primary);background:rgba(15,23,42,.04);}.auth-card{display:flex;width:780px;max-width:100%;background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;box-shadow:0 24px 60px rgba(15,23,42,.14);}.auth-left{flex:0 0 380px;position:relative;color:#fff;padding:42px 32px 28px;display:flex;flex-direction:column;background:radial-gradient(circle at 80% 20%,rgba(255,255,255,.08),transparent 55%),linear-gradient(160deg,#0a1532 0%,#19234a 100%);overflow:hidden;}.auth-left::after{content:'';position:absolute;bottom:-60px;left:-60px;width:220px;height:220px;border-radius:50%;background:radial-gradient(circle,rgba(255,255,255,.06),transparent 70%);pointer-events:none;}.auth-brand{position:relative;z-index:1;}.auth-brand .logo{width:44px;height:44px;border-radius:12px;background:linear-gradient(135deg,var(--primary),#ffa875);display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:700;color:#fff;margin-bottom:22px;box-shadow:0 8px 20px rgba(255,122,61,.35);}.auth-brand h2{font-size:26px;margin:0 0 6px;font-weight:700;line-height:1.3;letter-spacing:1px;}.auth-brand .auth-tagline{font-size:22px;margin:0 0 18px;font-weight:600;color:rgba(255,255,255,.92);}.auth-brand .auth-desc{font-size:13px;margin:0;opacity:.7;line-height:1.85;max-width:290px;}.auth-illust{margin-top:auto;padding-top:24px;position:relative;z-index:1;display:flex;align-items:flex-end;justify-content:center;gap:8px;}.auth-illust svg{display:block;filter:drop-shadow(0 10px 22px rgba(0,0,0,.28));}.auth-illust svg .blob-eye{fill:#1a1f3d;}.auth-illust svg .blob-eye-light{fill:#fff;}.auth-right{flex:0 0 400px;min-width:0;padding:44px 40px 32px;display:flex;flex-direction:column;}.auth-header{text-align:center;margin-bottom:22px;}.auth-header h1{font-size:22px;margin:0 0 6px;font-weight:700;color:#0f172a;}.auth-header .auth-switch{font-size:13px;color:var(--muted);}.auth-header .auth-switch a{color:var(--primary);text-decoration:none;margin-left:4px;font-weight:500;}.auth-header .auth-switch a:hover{text-decoration:underline;}.tabs{display:flex;gap:0;background:transparent;border-radius:0;padding:0;margin:0 0 12px;position:relative;border-bottom:1px solid var(--line);}.tabs::after{content:none;}.tabs button{flex:1;height:40px;border:none;background:transparent;border-radius:0;cursor:pointer;font-size:14px;color:var(--muted);position:relative;transition:color .18s ease;padding:0 4px;}.tabs button:hover:not(.active):not(:disabled){color:#475569;}.tabs button.active{background:transparent;color:var(--primary);font-weight:600;box-shadow:none;}.tabs button.active::after{content:'';position:absolute;left:50%;bottom:-1px;transform:translateX(-50%);width:calc(100% - 24px);max-width:96px;height:2px;background:var(--primary);border-radius:2px;}.tabs button:disabled{opacity:.5;cursor:not-allowed;}.msg{min-height:20px;font-size:12.5px;margin:-4px 0 8px;}.msg:empty{min-height:0;margin:0;}.msg.err{color:var(--danger);}.msg.ok{color:var(--ok);}.msg.info{color:var(--muted);}.hint{background:#f7f9fd;border:1px solid var(--line);border-radius:8px;padding:10px 12px;font-size:12px;color:var(--muted);margin-bottom:12px;line-height:1.7;}.hint b{color:#0f172a;}.rule{font-size:11.5px;color:var(--muted-2);margin:-8px 0 12px;padding-left:2px;}.form-fields{display:flex;flex-direction:column;}input[type="text"],input[type="password"],input[type="email"],input[type="tel"]{width:100%;height:var(--field-h);border:1px solid var(--line);border-radius:8px;padding:0 14px;margin:0 0 12px;font-size:14px;background:#fff;font-family:inherit;color:#0f172a;transition:border-color .15s,box-shadow .15s;}input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-soft);}input::placeholder{color:#b0b8c5;}input:disabled{background:#f6f8fb;cursor:not-allowed;}.code-row{display:flex;gap:8px;margin-bottom:12px;}.code-row input{flex:1;margin-bottom:0;}.code-row button{width:auto;padding:0 14px;height:42px;background:#f1f4fa;color:#35509c;border:1px solid var(--line);border-radius:8px;cursor:pointer;font-size:13px;white-space:nowrap;transition:background .15s,color .15s;}.code-row button:hover:not(:disabled){background:#e6eaf2;}.code-row button:disabled{color:var(--muted);cursor:not-allowed;}.captcha-row{display:flex;gap:8px;align-items:center;margin-bottom:12px;}.captcha-row input{flex:1;margin-bottom:0;letter-spacing:2px;text-transform:uppercase;}.captcha-row .captcha-img{flex:0 0 auto;width:120px;height:var(--field-h);object-fit:fill;border:none;border-radius:8px;background:transparent;cursor:pointer;user-select:none;display:block;transition:opacity .15s;}.captcha-row .captcha-img.loading{opacity:.45;pointer-events:none;}.agreement{display:flex;align-items:center;font-size:12.5px;color:var(--muted);margin:2px 0 14px;user-select:none;cursor:pointer;}.agreement input[type="checkbox"]{width:14px;height:14px;margin:0 6px 0 2px;accent-color:var(--primary);cursor:pointer;}.agreement a{color:var(--primary);text-decoration:none;margin:0 2px;}.agreement a:hover{text-decoration:underline;}.remember-row{display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--muted);margin:-4px 0 14px;user-select:none;}.remember-row .remember-me{display:inline-flex;align-items:center;cursor:pointer;}.remember-row .remember-me input[type="checkbox"]{width:14px;height:14px;margin:0 6px 0 2px;accent-color:var(--primary);cursor:pointer;}.remember-row a.forget-link{color:var(--primary);text-decoration:none;font-weight:500;}.remember-row a.forget-link:hover{text-decoration:underline;}.oauth{margin-top:18px;}.oauth-divider{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:12px;margin-bottom:12px;user-select:none;}.oauth-divider::before,.oauth-divider::after{content:'';flex:1;height:1px;background:var(--line);}.oauth-icons{display:flex;justify-content:center;align-items:center;gap:14px;flex-wrap:wrap;}.oauth-btn{width:40px;height:40px;border-radius:50%;background:#fff;border:1px solid var(--line);display:inline-flex;align-items:center;justify-content:center;transition:transform .15s ease,box-shadow .15s ease;}.oauth-btn:hover{transform:translateY(-2px);box-shadow:0 6px 14px rgba(15,23,42,.16);}.oauth-btn svg.oauth-ico{width:24px;height:24px;display:block;}.oauth-btn--svg svg{width:34px;height:34px;border-radius:50%;display:block;}button.submit{width:100%;height:44px;border:none;border-radius:8px;background:var(--primary);color:#fff;font-size:15px;font-weight:500;cursor:pointer;letter-spacing:8px;padding-left:8px;margin-top:4px;transition:background .15s,transform .05s;}button.submit:hover{background:var(--primary-dark);}button.submit:active{transform:translateY(1px);}button.submit:disabled{opacity:.6;cursor:not-allowed;}.foot{margin-top:18px;text-align:center;font-size:12.5px;color:var(--muted);}.foot a{color:var(--primary);text-decoration:none;font-weight:500;}.foot a:hover{text-decoration:underline;}.toast{position:fixed;top:20px;left:50%;transform:translateX(-50%);background:#0f172a;color:#fff;padding:10px 18px;border-radius:10px;font-size:13px;z-index:99;}.toast.error{background:#dc2626;}.qa-box{margin-top:12px;}.qa-box[hidden]{display:none;}.qa-tip{font-size:12.5px;line-height:1.7;color:#64748b;margin-bottom:10px;}.qa-item{margin-bottom:10px;}.qa-q{font-size:13px;line-height:1.55;color:#303133;margin-bottom:6px;}.qa-item input{width:100%;box-sizing:border-box;}@media (max-width:760px){.auth-card{flex-direction:column;}.auth-left{flex:0 0 auto;padding:28px 24px 20px;align-items:center;text-align:center;}.auth-brand .logo{margin-bottom:14px;}.auth-brand .auth-desc{margin-left:auto;margin-right:auto;}.auth-illust{margin-top:16px;padding-top:12px;}.auth-illust svg{width:200px;height:auto;}.auth-right{padding:28px 24px;}}