/* ========================================
   腾威集团 ERP 报价系统 - 登录页样式
   工业级专业设计 · 沉稳大气
   ======================================== */

.login-body {
    background: linear-gradient(135deg, #0f172a 0%, #1e3a8a 50%, #1e40af 100%);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 24px;
    position: relative;
    overflow: hidden;
}

/* 几何科技背景光效微纹理 */
.login-body::before {
    content: '';
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.15) 0%, rgba(255, 255, 255, 0) 70%);
    top: -200px;
    right: -100px;
    border-radius: 50%;
    pointer-events: none;
}

.login-body::after {
    content: '';
    position: absolute;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.12) 0%, rgba(255, 255, 255, 0) 70%);
    bottom: -150px;
    left: -100px;
    border-radius: 50%;
    pointer-events: none;
}

.login-container {
    background: #ffffff;
    border-radius: 20px;
    box-shadow: 0 25px 50px -12px rgba(15, 23, 42, 0.45);
    padding: 48px 44px 40px;
    width: 440px;
    max-width: 100%;
    position: relative;
    z-index: 10;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.login-container .logo {
    text-align: center;
    margin-bottom: 36px;
}

.login-container .logo .brand-logo-img {
    height: 48px;
    width: auto;
    max-width: 180px;
    margin-bottom: 12px;
    object-fit: contain;
}

.login-container .logo h1 {
    font-size: 24px;
    font-weight: 800;
    color: #0f172a;
    letter-spacing: -0.5px;
    line-height: 1.3;
}

.login-container .logo p {
    color: #64748b;
    font-size: 13px;
    margin-top: 6px;
    font-weight: 500;
    letter-spacing: 2px;
}

.login-container .form-group {
    margin-bottom: 22px;
}

.login-container .form-group label {
    display: block;
    font-size: 13px;
    font-weight: 700;
    color: #334155;
    margin-bottom: 8px;
}

.login-container .form-group input {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid #cbd5e1;
    border-radius: 10px;
    font-size: 14px;
    font-family: inherit;
    transition: all 0.2s ease;
    background: #f8fafc;
    color: #0f172a;
}

.login-container .form-group input:focus {
    outline: none;
    border-color: #2563eb;
    background: #ffffff;
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12);
}

.login-container .btn-login {
    width: 100%;
    padding: 13px;
    border: none;
    border-radius: 10px;
    background: linear-gradient(135deg, #1e40af 0%, #2563eb 100%);
    color: #ffffff;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    font-family: inherit;
    margin-top: 10px;
    letter-spacing: 2px;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
}

.login-container .btn-login:hover {
    background: linear-gradient(135deg, #1e3a8a 0%, #1d4ed8 100%);
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.35);
    transform: translateY(-1px);
}

.login-container .btn-login:disabled {
    opacity: 0.65;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.login-container .error-msg {
    color: #dc2626;
    font-size: 13px;
    font-weight: 600;
    text-align: center;
    margin-top: 14px;
    min-height: 22px;
}

.login-container .demo-tip {
    text-align: center;
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid #e2e8f0;
}

.login-container .demo-tip .demo-header {
    font-size: 13px;
    font-weight: 700;
    color: #475569;
    margin-bottom: 12px;
}

.login-container .demo-tip .quick-btn-group {
    display: flex;
    gap: 10px;
    justify-content: center;
    flex-wrap: wrap;
}

/* 快捷登录品牌按钮 */
.login-container .quick-login-btn {
    border: none;
    padding: 10px 18px;
    border-radius: 10px;
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
    font-family: inherit;
    color: #ffffff;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
}

.login-container .quick-login-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.18);
}

.login-container .quick-admin {
    background: linear-gradient(135deg, #1e40af 0%, #2563eb 100%);
}
.login-container .quick-admin:hover {
    background: linear-gradient(135deg, #1e3a8a 0%, #1d4ed8 100%);
}

.login-container .quick-purchase {
    background: linear-gradient(135deg, #d97706 0%, #f59e0b 100%);
}
.login-container .quick-purchase:hover {
    background: linear-gradient(135deg, #b45309 0%, #d97706 100%);
}

.login-container .quick-sales {
    background: linear-gradient(135deg, #059669 0%, #10b981 100%);
}
.login-container .quick-sales:hover {
    background: linear-gradient(135deg, #047857 0%, #059669 100%);
}

.login-container .demo-tip .demo-footer {
    font-size: 12px;
    color: #dc2626;
    font-weight: 600;
    margin-top: 14px;
}

/* ---------- 手机端适配 ---------- */
@media (max-width: 480px) {
    .login-body {
        padding: 12px;
    }

    .login-container {
        padding: 32px 22px 28px;
        border-radius: 16px;
    }

    .login-container .logo {
        margin-bottom: 26px;
    }

    .login-container .logo h1 {
        font-size: 21px;
    }

    .login-container .logo .brand-logo-img {
        height: 40px;
    }

    .login-container .form-group {
        margin-bottom: 18px;
    }

    .login-container .form-group input {
        padding: 13px 14px;
        font-size: 16px;  /* 避免 iOS 缩放 */
    }

    .login-container .btn-login {
        font-size: 15px;
        padding: 14px;
    }

    .login-container .quick-btn-group {
        flex-direction: column;
    }

    .login-container .quick-login-btn {
        width: 100%;
        padding: 12px;
    }
}