:root {
    --caramel: #C5A880;
    --caramel-hover: #A88B63;
    --espresso: #5C4033;
    --mocha: #8B5A2B;
}

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

body {
    font-family: "Microsoft Yahei", sans-serif;
    background-color: #fdfbf7;
    background-image: radial-gradient(rgba(180, 160, 140, 0.25) 1px, transparent 1px);
    background-size: 30px 30px;
    color: #5c4c42;
    min-height: 100vh;
    overflow-x: hidden;
}

.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 20px;
}

.login-container {
    width: 100%;
    max-width: 420px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.login-box {
    width: 100%;
    background: rgba(253, 251, 247, 0.4);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 40px 35px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
}

.login-header {
    text-align: center;
    margin-bottom: 35px;
}

.logo {
    font-size: 1.8rem;
    font-weight: bold;
    color: var(--espresso);
    margin-bottom: 8px;
    letter-spacing: 2px;
}

.login-subtitle {
    color: #8d7463;
    font-size: 0.95rem;
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 0.95rem;
    color: #5c4c42;
    font-weight: 500;
}

.form-group input {
    padding: 14px 16px;
    border: 2px solid rgba(199, 168, 131, 0.3);
    border-radius: 12px;
    font-size: 1rem;
    color: #5c4c42;
    background: rgba(255, 255, 255, 0.6);
    transition: all 0.3s ease;
}

.form-group input:focus {
    outline: none;
    border-color: var(--caramel);
    background: rgba(255, 255, 255, 0.9);
    box-shadow: 0 0 0 3px rgba(199, 168, 131, 0.15);
}

.form-group input::placeholder {
    color: #a89888;
}

.form-options {
    display: flex;
    justify-content: flex-start;
    align-items: center;
    font-size: 0.9rem;
}

.remember-me {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    color: #6d5d52;
}

.remember-me input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--caramel);
    cursor: pointer;
}

.login-btn {
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, #c7a883, #a88b63);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 1.05rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(199, 168, 131, 0.3);
    margin-top: 10px;
}

.login-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(199, 168, 131, 0.4);
}

.login-btn:active {
    transform: translateY(0);
}

.login-footer {
    margin-top: 30px;
    text-align: center;
    color: #8d7463;
    font-size: 0.9rem;
}

@media (max-width: 480px) {
    .login-box {
        padding: 30px 25px;
    }
    
    .logo {
        font-size: 1.5rem;
    }
    
    .form-group input {
        padding: 12px 14px;
    }
    
    .login-btn {
        padding: 12px;
    }
}