* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    background: radial-gradient(ellipse at 30% 40%, rgba(10, 50, 30, 0.15) 0%, transparent 60%), linear-gradient(125deg, #eaf4ed 0%, #d1e0d3 100%);
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(2px);
}

.login-card {
    width: 440px;
    background: rgba(255, 255, 255, 0.75);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 48px;
    box-shadow: 0 30px 60px -20px rgba(0, 40, 20, 0.4), 0 8px 20px 0 rgba(0, 0, 0, 0.08), inset 0 1px 2px rgba(255,255,255,0.8);
    padding: 48px 40px;
    border: 1px solid rgba(255, 255, 255, 0.6);
    transition: transform 0.2s ease;
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 40px;
}

.logo-icon {
    width: 52px;
    height: 52px;
    background: linear-gradient(145deg, #1b4d3d, #2b6e4f);
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 12px 18px -8px rgba(27, 77, 61, 0.4);
}

    .logo-icon i {
        font-size: 32px;
        color: #f3f9e9;
    }

.logo-text h1 {
    font-size: 24px;
    font-weight: 600;
    letter-spacing: 1px;
    color: #1b3b2c;
}

.logo-text p {
    font-size: 14px;
    color: #4b6b5a;
    font-weight: 500;
    margin-top: 4px;
}

.input-group {
    margin-bottom: 24px;
}

    .input-group label {
        display: block;
        font-size: 13px;
        font-weight: 600;
        text-transform: uppercase;
        letter-spacing: 0.5px;
        color: #2a5c45;
        margin-bottom: 8px;
    }

.input-field {
    width: 100%;
    background: rgba(255,255,255,0.6);
    border: 1.5px solid rgba(50, 80, 70, 0.15);
    border-radius: 20px;
    padding: 16px 20px;
    font-size: 16px;
    font-weight: 500;
    color: #1d392b;
    outline: none;
    transition: all 0.2s;
}

    .input-field:focus {
        border-color: #2e6b50;
        background: rgba(255,255,255,0.85);
        box-shadow: 0 4px 14px rgba(46, 107, 80, 0.25);
    }

/* 验证码行特殊布局 */
.captcha-row {
    display: flex;
    gap: 12px;
    align-items: center;
}

    .captcha-row .input-field {
        flex: 1;
    }

.captcha-code {
    background: #eef3ef;
    border-radius: 20px;
    padding: 0 18px;
    height: 58px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Courier New', monospace;
    font-size: 28px;
    font-weight: 700;
    letter-spacing: 8px;
    color: #2b5e44;
    border: 1px solid rgba(70, 130, 100, 0.3);
    cursor: pointer;
    user-select: none;
    transition: all 0.2s;
    background: rgba(220, 240, 225, 0.8);
}

    .captcha-code:hover {
        background: #d4e8db;
        transform: scale(0.98);
    }

.refresh-captcha {
    background: transparent;
    border: none;
    font-size: 20px;
    cursor: pointer;
    color: #427e60;
    width: 44px;
    height: 44px;
    border-radius: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

    .refresh-captcha:hover {
        background: rgba(70, 130, 100, 0.15);
        transform: rotate(15deg);
    }

.login-btn {
    width: 100%;
    background: linear-gradient(105deg, #1b4d3d, #2b6b4e);
    border: none;
    border-radius: 32px;
    padding: 16px 20px;
    font-size: 18px;
    font-weight: 600;
    color: white;
    letter-spacing: 0.7px;
    cursor: pointer;
    box-shadow: 0 20px 30px -12px #1b4d3d80;
    transition: all 0.2s;
    border: 1px solid rgba(255,255,255,0.3);
    margin-top: 12px;
}

    .login-btn:hover {
        background: linear-gradient(105deg, #226b50, #1f5c43);
        transform: scale(1.02);
        box-shadow: 0 22px 34px -10px #154d36;
    }

.additional-links {
    display: flex;
    justify-content: space-between;
    margin-top: 24px;
    font-size: 14px;
    color: #3c5b4c;
    font-weight: 500;
}

    .additional-links a {
        color: #1b4d3d;
        text-decoration: none;
        border-bottom: 1px dashed #a0b9ac;
    }

.error-message {
    color: #c75c3e;
    font-size: 13px;
    margin-top: 12px;
    text-align: center;
    font-weight: 500;
    background: rgba(255,235,230,0.7);
    padding: 8px;
    border-radius: 40px;
    display: none;
}

/* 底部信息区域 - 新增 */
.footer-info {
    margin-top: 28px;
    padding-top: 20px;
    border-top: 1px solid rgba(70, 130, 100, 0.2);
    text-align: center;
}

.copyright {
    font-size: 12px;
    color: #5a7f6a;
    line-height: 1.6;
    margin-bottom: 8px;
}

    .copyright i {
        margin-right: 4px;
        color: #548c6f;
    }

.record-number {
    font-size: 11px;
    color: #6f8f7a;
    margin-bottom: 6px;
}

    .record-number a {
        color: #4a6b58;
        text-decoration: none;
        transition: color 0.2s;
    }

        .record-number a:hover {
            color: #1b4d3d;
            text-decoration: underline;
        }

.tech-support {
    font-size: 11px;
    color: #6f8f7a;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
    margin-top: 6px;
}

    .tech-support span {
        display: inline-flex;
        align-items: center;
        gap: 6px;
    }

    .tech-support i {
        font-size: 11px;
        color: #7a9a86;
    }

.demo-note {
    margin-top: 24px;
    text-align: center;
    font-size: 13px;
    color: #527b66;
    border-top: 1px solid rgba(70, 130, 100, 0.2);
    padding-top: 20px;
}

@media (max-width: 500px) {
    .login-card {
        width: 90%;
        padding: 36px 28px;
    }

    .captcha-code {
        font-size: 22px;
        letter-spacing: 4px;
        padding: 0 12px;
    }
}