:root {
    --primary-color: #1bd96a;
    --primary-hover: #15a352;
    --secondary-color: #2d9cdb;
    --bg-color: #1f1f23;
    --surface-color: #2d2d33;
    --surface-light: #3d3d44;
    --darker-bg: #1a1a1d;
    --text-primary: #f8f9fa;
    --text-secondary: #adb5bd;
    --text-muted: #6c757d;
    --text-light: #f8f9fa;
    --text-gray: #adb5bd;
    --border-color: #3d3d44;
    --card-bg: #2d2d33;
    --shadow: rgba(0, 0, 0, 0.3);
    --accent-color: #ff6b6b;
}

/* 链接样式 */
a {
    color: var(--primary-color);
    text-decoration: none;
    transition: all 0.3s ease;
}

a:hover {
    color: var(--primary-hover);
    text-decoration: underline;
}

/* 认证页面样式 */
.auth-container {
    min-height: calc(100vh - 70px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.auth-box {
    background: var(--card-bg);
    border-radius: 20px;
    padding: 3rem 2rem;
    width: 100%;
    max-width: 450px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.auth-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.auth-header i {
    font-size: 3.5rem;
    background: var(--primary-color);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1rem;
}

.auth-header h2 {
    color: var(--text-light);
    margin-bottom: 0.5rem;
    font-size: 1.8rem;
}

.auth-header p {
    color: var(--text-gray);
    font-size: 0.95rem;
}

.auth-form .form-group {
    margin-bottom: 1.5rem;
}

.auth-form label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-light);
    font-weight: 500;
}

.auth-form input {
    width: 100%;
    padding: 0.9rem 1rem;
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    background: var(--darker-bg);
    color: var(--text-light);
    font-size: 1rem;
    transition: all 0.3s;
}

.auth-form input:focus {
    outline: none;
    border-color: #1bd96a;
    box-shadow: 0 0 0 3px rgba(27, 217, 106, 0.1);
}

.auth-form input::placeholder {
    color: var(--text-gray);
    opacity: 0.6;
}

.btn-full {
    width: 100%;
    margin-top: 1rem;
}

.auth-switch {
    text-align: center;
    margin-top: 1.5rem;
    color: var(--text-gray);
    font-size: 0.95rem;
}

.auth-switch a {
    color: #2d9cdb;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

.auth-switch a:hover {
    color: #1bd96a;
    text-decoration: underline;
}

@media (max-width: 768px) {
    .auth-box {
        padding: 2rem 1.5rem;
    }

    .auth-header i {
        font-size: 3rem;
    }

    .auth-header h2 {
        font-size: 1.5rem;
    }
}