* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: "Segoe UI", "Microsoft YaHei", sans-serif;
        }

        body {
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 14px;
            padding: 18px 12px;
            background: #edeff2;
            color: #1f1f1f;
        }

        .login-card {
            width: 430px;
            background: #ffffff;
            border-radius: 18px;
            padding: 28px 30px 24px;
            box-shadow: 0 8px 26px rgba(15, 21, 34, 0.12);
            border: 1px solid #e9ebef;
        }

        .brand {
            text-align: center;
            margin-bottom: 14px;
        }

        .brand-logo {
            width: 220px;
            max-width: 100%;
            height: auto;
            display: inline-block;
        }

        .title {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 22px;
            letter-spacing: 0;
            color: #242831;
        }

        .input-wrap {
            margin-bottom: 12px;
            position: relative;
        }

        .input {
            width: 100%;
            height: 52px;
            border: 1px solid #e2e5ea;
            border-radius: 10px;
            background: #ffffff;
            color: #30343c;
            padding: 0 16px;
            font-size: 16px;
            outline: none;
        }

        #password {
            padding-right: 46px;
        }

        input[type="password"]::-ms-reveal,
        input[type="password"]::-ms-clear {
            display: none;
        }

        input[type="password"]::-webkit-credentials-auto-fill-button {
            visibility: hidden;
            display: none !important;
            pointer-events: none;
        }

        .input:focus {
            border-color: #b9c0cb;
            box-shadow: 0 0 0 2px rgba(35, 40, 49, 0.06);
        }

        .input::placeholder {
            color: #b7bcc5;
            font-size: 16px;
        }

        .toggle-password {
            position: absolute;
            right: 14px;
            top: 50%;
            transform: translateY(-50%);
            background: transparent;
            border: none;
            color: #5f6673;
            cursor: pointer;
            font-size: 20px;
        }

        .captcha-row {
            display: flex;
            gap: 10px;
            margin-bottom: 14px;
        }

        .captcha-row .input {
            flex: 1;
            margin-bottom: 0;
        }

        .captcha-image {
            width: 120px;
            height: 52px;
            display: block;
            border-radius: 10px;
            cursor: pointer;
            background: #f7f8fa;
            border: 1px solid #e2e5ea;
        }

        .captcha-hint {
            text-align: right;
            margin-top: -8px;
            margin-bottom: 10px;
            font-size: 12px;
        }

        .captcha-refresh {
            color: #8a92a0;
            text-decoration: none;
            cursor: pointer;
        }

        .login-btn {
            width: 100%;
            height: 52px;
            border: none;
            border-radius: 10px;
            background: #1f232c;
            color: #ffffff;
            font-size: 20px;
            font-weight: 700;
            cursor: pointer;
            margin-top: 8px;
            transition: 0.2s;
        }

        .login-btn:hover {
            background: #2a2f3a;
        }

        .hint {
            text-align: center;
            margin-top: 12px;
            color: #7f8794;
            font-size: 14px;
        }

        .hint a {
            color: #7f8794;
            text-decoration: none;
        }

        .error {
            min-height: 22px;
            color: #e35d5d;
            font-size: 14px;
            margin-top: 10px;
        }

        .agreement {
            margin-top: 18px;
            text-align: center;
            font-size: 12px;
            color: #a5acb8;
        }

        .site-record {
            text-align: center;
            font-size: 12px;
            color: #8d95a2;
        }

        .site-record a {
            color: #6f7682;
            text-decoration: none;
        }

        .site-record a:hover {
            text-decoration: underline;
        }

        @media (max-width: 520px) {
            .login-card {
                width: calc(100% - 24px);
                padding: 22px 18px;
            }

            .title {
                font-size: 30px;
            }

            .input {
                font-size: 18px;
            }

            .input::placeholder {
                font-size: 18px;
            }

            .login-btn {
                font-size: 22px;
            }

            .hint,
            .agreement {
                font-size: 14px;
            }
        }