:root{--bg: #f5f5f7;--surface: #ffffff;--border: #e5e5ea;--text: #1a1a1c;--text-muted: #808086;--accent: #a78bfa;--accent-hover: #7c3aed;--danger: #e03d34;--font-sans: system-ui, -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei UI", "HarmonyOS Sans", sans-serif}*,*:before,*:after{box-sizing:border-box}html,body{width:100%;min-height:100%;margin:0}body{background:var(--bg);color:var(--text);font-family:var(--font-sans);font-size:15px;line-height:1.6;-webkit-font-smoothing:antialiased}button,input{font:inherit}.login-page{display:flex;align-items:center;justify-content:center;min-height:100vh;min-height:100dvh;padding:24px}.login-card{width:min(380px,100%);padding:40px 36px;background:var(--surface);border:1px solid var(--border);border-radius:12px;box-shadow:0 8px 32px #00000014}.login-brand{margin-bottom:32px;text-align:center}.login-brand img{display:block;width:48px;height:48px;margin:0 auto 12px;border-radius:12px}.login-brand h1{margin:0;color:var(--text);font-size:22px;font-weight:700;line-height:1.3}.login-field{margin-bottom:18px}.login-field label{display:block;margin-bottom:8px;color:var(--text);font-size:13px;font-weight:600}.password-field{position:relative}.login-input{width:100%;height:48px;padding:0 16px;color:var(--text);background:#f5f5f7d1;border:1px solid rgba(167,139,250,.18);border-radius:12px;outline:none;transition:background .15s ease,border-color .15s ease,box-shadow .15s ease}.password-field .login-input{padding-right:64px}.login-input:hover{background:#fff;border-color:#a78bfa57}.login-input:focus{background:#fff;border-color:var(--accent);box-shadow:0 0 0 4px #a78bfa24}.login-input::placeholder{color:var(--text-muted)}.password-toggle{position:absolute;top:50%;right:6px;min-width:48px;min-height:36px;padding:0 8px;color:var(--text-muted);background:transparent;border:0;border-radius:8px;cursor:pointer;font-size:13px;font-weight:600;transform:translateY(-50%)}.password-toggle:hover{color:var(--accent-hover);background:#a78bfa14}.password-toggle:focus-visible,.login-btn:focus-visible{outline:3px solid rgba(167,139,250,.35);outline-offset:2px}.login-error{display:none;margin-bottom:16px;padding:10px 14px;color:var(--danger);background:#ff453a1a;border:1px solid rgba(255,69,58,.25);border-radius:6px;font-size:13px;line-height:1.5}.login-error.visible{display:block}.login-btn{width:100%;min-height:44px;padding:11px 0;color:#fff;background:var(--accent);border:0;border-radius:8px;cursor:pointer;font-weight:600;transition:background .15s ease,opacity .15s ease}.login-btn:hover{background:var(--accent-hover)}.login-btn:disabled{cursor:wait;opacity:.55}@media(max-width:480px){.login-page{padding:16px}.login-card{padding:28px 20px;border-radius:16px}.login-input{height:50px;font-size:16px}.login-btn{min-height:48px;font-size:16px}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{transition-duration:.01ms!important}}